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Polar climate affects trade wind strength in tropics
The impact of sea surface temperature variations in the tropical Pacific on global climate has long been recognized. For instance, the episodic warming of the tropical Pacific during El Niño events causes melt of sea ice in far-reaching parts of the Southern Ocean via its effect on the global atmospheric circulation. A new study demonstrates that the opposite pathway exists as well.
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The Milky Way's Oldest Stars Are Moving in Unexpected Ways
Our galaxy still has plenty of surprises for us.
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Alzheimer's-Linked Mutation Causes Blockages in Neurons
The variant causes a buildup of BACE1 protein in axons in cultured neurons and mice. Researchers say it might be time to rethink failed trials that inhibit BACE1 to treat the neurodegenerative disease.
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After more than a decade, ChIP-seq may be quantitative after all
For more than a decade, scientists studying epigenetics have used a powerful method called ChIP-seq to map changes in proteins and other critical regulatory factors across the genome. While ChIP-seq provides invaluable insights into the underpinnings of health and disease, it also faces a frustrating challenge: its results are often viewed as qualitative rather than quantitative, making interpreta
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Adipose tissue may be the source of inflammatory factors that aggravate COVID-19
Preliminary results of patient tissue analysis show that the virus infects adipocytes and alters the quantity of signaling molecules released by these cells into the bloodstream.
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For COVID-19 surveillance, test frequency and turnaround time are paramount, modeling suggests
Speed of test results and frequency of testing are paramount for effective COVID-19 surveillance, suggests a new study that modeled trade-offs in test sensitivity, test frequency, and sample-to-answer reporting time, in select scenarios. Test sensitivity is secondary to these factors in the scenarios studied.
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Pfizer Applies for Emergency F.D.A. Approval for Covid-19 Vaccine
A large team of regulators at the agency will take about three weeks to review an application spanning thousands of pages.
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SFU researchers examine which approaches are most effective at reducing COVID-19 spread
Simon Fraser University professors Paul Tupper and Caroline Colijn have found that physical distancing is universally effective at reducing the spread of COVID-19, while social bubbles and masks are more situation-dependent. The researchers developed a model to test the effectiveness of measures such as physical distancing, masks or social bubbles when used in various settings.
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Forskere om effekten af mundbind: Vi bliver ikke meget klogere, end vi er nu
Kravet om mundbind i samfundet gør det 'nærmest umuligt' at lave nye forsøg.
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Discovery illuminates how cell growth pathway responds to signals
A basic science discovery reveals a fundamental way cells interpret signals from their environment and may eventually pave the way for potential new therapies.
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Memories create 'fingerprints' that reveal how the brain is organized
While the broad architecture and organization of the human brain is universal, new research shows how the differences between how people reimagine common scenarios can be observed in brain activity and quantified. These unique neurological signatures could ultimately be used to understand, study, and even improve treatment of disorders such as Alzheimer's disease.
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Pfizer Seeks Approval, the CDC Urges Restraint, and More News
Catch up on the most important updates from this week.
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Clues to Puebloan History Drip Away in Melting Ice Caves
Charcoal dating back nearly 2,000 years show the ancestral Puebloans used the ice for drinking water during droughts — Read more on ScientificAmerican.com
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The world's longest commercial flights, by the numbers
The airline uses an A350-900 for its trips between Singapore and New York City. (Singapore Airlines/) Last week, Singapore Airlines launched what is the longest regularly scheduled flight in the world—at least for the moment. The ultra-long-haul trip is a nonstop connection between New York's John F. Kennedy International Airport and Singapore's Changi Airport. It employs an Airbus A350-900 aircr
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Study: Countering hate on social media
The rise of online hate speech is a disturbing, growing trend in countries around the world, with serious psychological consequences and the potential to impact, and even contribute to, real-world violence. A new paper offers a framework for studying the dynamics of online hate and counter speech, and offers the first large-scale classification of millions of instances such interactions on Twitter
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Frequent, rapid testing could cripple COVID within weeks, study shows
When it comes to curbing the spread of COVID-19, test frequency and test turnaround-time are far more important than test sensitivity, according to a new study published in the journal Science Advances. The authors say frequent, rapid tests make "personalized stay-at-home orders" possible.
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Gut immune cells may help send MS into remission
An international research team led by UCSF scientists has shown, for the first time, that gut immune cells travel to the brain during multiple sclerosis (MS) flare-ups in patients. These gut cells seem to be playing a protective role, helping drive MS symptoms back into remission.
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New non-invasive technology could spot early signs of motor disorders in babies
Imperial College London scientists have created the world's first non-invasive way to map how baby movements are generated on a neuronal level.
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A long distance connection: polar climate affects trade wind strength in tropics
The impact of sea surface temperature variations in the tropical Pacific on global climate has long been recognized. For instance, the episodic warming of the tropical Pacific during El Niño events causes melt of sea ice in far-reaching parts of the Southern Ocean via its effect on the global atmospheric circulation. A new study, published this week in the journal Science Advances by an internatio
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Gut-brain axis influences multiple sclerosis
A Basel-led international research team has discovered a connection between the intestinal flora and sites of inflammation in the central nervous system in multiple sclerosis. A specific class of immune cell plays a central role in this newly identified gut-brain axis. The discovery could pave the way for new treatments for MS that target the intestinal flora.
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Food health star ratings can improve diets, study finds
More evidence has emerged that food labelling can encourage manufacturers to improve product nutrition, but University of Melbourne experts say the star labelling system must be compulsory to make a big difference.
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New solvent-based recycling process could cut down on millions of tons of plastic waste
Multilayer plastic materials are ubiquitous in food and medical supply packaging, particularly since layering polymers can give those films specific properties, like heat resistance or oxygen and moisture control. But despite their utility, those ever-present plastics are impossible to recycle using conventional methods.
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Some Amazon rainforest regions more resistant to climate change than previously thought
Is the Amazon rainforest as sensitive to water stress as what the current models have been showing? Columbia Engineering researchers found that the models have been largely over-estimating water stress in tropical forests. While models show that increases in air dryness greatly diminish photosynthesis rates in certain regions of the Amazon rainforest, observational data results show the opposite:
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Building better diffusion models for active systems
Modifications to existing theories have enabled researchers to better understand and model the dynamics of systems which don't obey conventional laws of diffusion.
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Scientists Find Remnants of "Fossil Galaxy" Inside the Milky Way
Assimilation Complete Buried deep inside our Milky Way galaxy, scientists found a "fossil" vastly more ancient and massive than any that could ever be found on earth. The remains are of an entirely different galaxy — dubbed Heracles after the mythical son of Zeus — that appears to have collided with our own about 10 billion years ago, according to research accepted for publication in the journal
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Recycling of multilayer plastic packaging materials by solvent-targeted recovery and precipitation
Many plastic packaging materials manufactured today are composites made of distinct polymer layers (i.e., multilayer films). Billions of pounds of these multilayer films are produced annually, but manufacturing inefficiencies result in large, corresponding postindustrial waste streams. Although relatively clean (as opposed to municipal wastes) and of near-constant composition, no commercially pra
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Biophysical impacts of Earth greening largely controlled by aerodynamic resistance
Satellite observations show widespread increasing trends of leaf area index (LAI), known as the Earth greening. However, the biophysical impacts of this greening on land surface temperature (LST) remain unclear. Here, we quantify the biophysical impacts of Earth greening on LST from 2000 to 2014 and disentangle the contributions of different factors using a physically based attribution model. We
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Focal random selection closes the gender gap in competitiveness
Gender differences in choosing to enter competitions are an important cause of the leaky pipeline for women in leadership roles and represent a considerable waste of human resources. We used an incentivized laboratory experiment to evaluate whether the introduction of random elements alters the gender gap in competitiveness. We found that focal random selection from a preselected pool removes the
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Strong coupling of single quantum dots with low-refractive-index/high-refractive-index materials at room temperature
Strong coupling between a cavity and transition dipole moments in emitters leads to vacuum Rabi splitting. Researchers have not reported strong coupling between a single emitter and a dielectric cavity at room temperature until now. In this study, we investigated the photoluminescence (PL) spectra of colloidal quantum dots on the surface of a SiO 2 /Si material at various collection angles at roo
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Promoting the activation of T cells with glycopolymer-modified dendritic cells by enhancing cell interactions
Dendritic cell (DC) modification to enhance antigen presentation is a valuable strategy in cancer immune therapy. Other than focusing on regulating interactions between DC and antigens, we intend to promote cell interactions between DC and T cell by cell surface engineering. T cell activation is greatly improved and generates higher tumor toxicity with the aid of the synthetic glycopolymer modifi
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Dynamic polaronic screening for anomalous exciton spin relaxation in two-dimensional lead halide perovskites
Two-dimensional lead halide perovskites with confined excitons have shown exciting potentials in optoelectronic applications. It is intriguing but unclear how the soft and polar lattice redefines excitons in layered perovskites. Here, we reveal the intrinsic exciton properties by investigating exciton spin dynamics, which provides a sensitive probe to exciton coulomb interactions. Compared to tra
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Amazon rainforest photosynthesis increases in response to atmospheric dryness
Earth system models predict that increases in atmospheric and soil dryness will reduce photosynthesis in the Amazon rainforest, with large implications for the global carbon cycle. Using in situ observations, solar-induced fluorescence, and nonlinear machine learning techniques, we show that, in reality, this is not necessarily the case: In many of the wettest parts of this region, photosynthesis
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High-throughput single-EV liquid biopsy: Rapid, simultaneous, and multiplexed detection of nucleic acids, proteins, and their combinations
MicroRNAs (miRNAs), mRNA, and proteins in/on extracellular vesicles (EVs) represent potential cancer biomarkers. Concurrent detection of multiple biomarkers at a single-EV level would greatly improve prognosis and/or diagnosis and understanding of EV phenotypes, biogenesis, and functions. Here, we introduced a High-throughput Nano-bio Chip Integrated System for Liquid Biopsy (HNCIB) system for si
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Needle-compatible miniaturized optoelectronic sensor for pancreatic cancer detection
Pancreatic cancer is one of the deadliest cancers, with a 5-year survival rate of
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Ancestry-dependent gene expression correlates with reprogramming to pluripotency and multiple dynamic biological processes
Induced pluripotent stem cells (iPSCs) can be derived from differentiated cells, enabling the generation of personalized disease models by differentiating patient-derived iPSCs into disease-relevant cell lines. While genetic variability between different iPSC lines affects differentiation potential, how this variability in somatic cells affects pluripotent potential is less understood. We generat
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Spinal motoneurons of the human newborn are highly synchronized during leg movements
Motoneurons of neonatal rodents show synchronous activity that modulates the development of the neuromuscular system. However, the characteristics of the activity of human neonatal motoneurons are largely unknown. Using a noninvasive neural interface, we identified the discharge timings of individual spinal motoneurons in human newborns. We found highly synchronized activities of motoneurons of t
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Abnormal conductivity in low-angle twisted bilayer graphene
Controlling the interlayer twist angle offers a powerful means for tuning the electronic properties of two-dimensional (2D) van der Waals materials. Typically, the electrical conductivity would increase monotonically with decreasing twist angle owing to the enhanced coupling between adjacent layers. Here, we report a nonmonotonic angle-dependent vertical conductivity across the interface of bilay
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n-Alkanes to n-alcohols: Formal primary CboxhH bond hydroxymethylation via quadruple relay catalysis
Nature is able to synergistically combine multiple enzymes to conduct well-ordered biosynthetic transformations. Mimicking nature's multicatalysis in vitro may give rise to new chemical transformations via interplay of numerous molecular catalysts in one pot. The direct and selective conversion of abundant n -alkanes to valuable n -alcohols is a reaction with enormous potential applicability but
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Potency and timing of antiviral therapy as determinants of duration of SARS-CoV-2 shedding and intensity of inflammatory response
To affect the COVID-19 pandemic, lifesaving antiviral therapies must be identified. The number of clinical trials that can be performed is limited. We developed mathematical models to project multiple therapeutic approaches. Our models recapitulate off-treatment viral dynamics and predict a three-phase immune response. Simulated treatment with remdesivir, selinexor, neutralizing antibodies, or ce
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Ultrafast electron diffraction from nanophotonic waveforms via dynamical Aharonov-Bohm phases
Electron interferometry via phase-contrast microscopy, holography, or picodiffraction can provide a direct visualization of the static electric and magnetic fields inside or around a material at subatomic precision, but understanding the electromagnetic origin of light-matter interaction requires time resolution as well. Here, we demonstrate that pump-probe electron diffraction with all-optically
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PPM1G restricts innate immune signaling mediated by STING and MAVS and is hijacked by KSHV for immune evasion
The adaptor proteins, STING and MAVS, are components of critical pathogen-sensing pathways that induce innate immunity. Phosphorylation of either adaptor results in activation of the type I interferon pathway. How this phosphorylation is regulated and how it is manipulated by pathogens remain largely unknown. Here, we identified host protein phosphatase, Mg 2+ /Mn 2+ dependent 1G (PPM1G) as a neg
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Spatial variation in biodiversity loss across China under multiple environmental stressors
Biodiversity is essential for the maintenance of ecosystem health and delivery of the Sustainable Development Goals. However, the drivers of biodiversity loss and the spatial variation in their impacts are poorly understood. Here, we explore the spatial-temporal distributions of threatened and declining ("biodiversity-loss") species and find that these species are affected by multiple stressors,
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BDNF-induced local translation of GluA1 is regulated by HNRNP A2/B1
The AMPA receptor subunit GluA1 is essential for induction of synaptic plasticity. While various regulatory mechanisms of AMPA receptor expression have been identified, the underlying mechanisms of GluA1 protein synthesis are not fully understood. In neurons, axonal and dendritic mRNAs have been reported to be translated in a cap-independent manner. However, molecular mechanisms of cap-independen
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Overcoming the ceiling effects of experts motor expertise through active haptic training
One of the most challenging issues among experts is how to improve motor skills that have already been highly trained. Recent studies have proposed importance of both genetic predisposition and accumulated amount of practice for standing at the top of fields of sports and performing arts. In contrast to the two factors, what is unexplored is how one practices impacts on experts' expertise. Here,
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Walker circulation response to extratropical radiative forcing
Walker circulation variability and associated zonal shifts in the heating of the tropical atmosphere have far-reaching global impacts well into high latitudes. Yet the reversed high latitude–to–Walker circulation teleconnection is not fully understood. Here, we reveal the dynamical pathways of this teleconnection across different components of the climate system using a hierarchy of climate model
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Trump Is Getting More Desperate—And More Dangerous
The good news is that President Donald Trump's attempts to defy the results of the election and remain in office keep falling flat. In court after court, judges have ruled against the Trump campaign and tossed out its lawsuits. Today, Georgia certified Democrat Joe Biden as the winner of the state's presidential electors, after a federal judge yesterday rejected a prominent conservative lawyer's
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Biophysics: Geometry supersedes simulations
Physicists have introduced a new method that allows biological pattern-forming systems to be systematically characterized with the aid of mathematical analysis. The trick lies in the use of geometry to characterize the dynamics.
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Ribosome assembly: The final trimming step
Ribosomes synthesize all the proteins in cells. Studies mainly done on yeast have revealed much about how ribosomes are put together, but a team now reports that ribosome assembly in human cells requires factors that have no counterparts in simpler model organisms.
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New report projects severe coral bleaching globally in this century
The United Nations recently released a new report projecting future coral reef bleaching globally.
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COVID-19 patients survive in-hospital cardiac arrest at pre-pandemic rates
Resuscitation and survival rates of hospitalized COVID-19 patients who've had cardiac arrest are much higher than earlier reports of near-zero; variation at the individual hospital level may have affected overall numbers
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Scientists discover roles for a cellular motor in cancer
Scientists have discovered new functions of a key cellular machine that regulates gene packaging and is mutated in 20 percent of human cancers.
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Molecular telegraphy: Precisely sending and receiving single molecules
Can a single molecule be transferred to a specific, distant location, and then brought back to the starting point? And how fast does it move? A new study addresses these questions.
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Decoy could halt this deadly (and spreading) virus
Researchers have identified a molecule that protects mice from brain infections caused by Venezuelan equine encephalitis virus (VEEV), a mosquito-borne virus notorious for causing fast-spreading, deadly outbreaks in Mexico, Central America, and northern South America. As the climate changes, the virus is likely to expand its range and threaten more countries in the Americas, including the US. Pub
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Hypoallergenic Cats: Scientists Are Developing Treatments to Make Cats Allergy-Free
One company is making a vaccine that is given to cats and stops them from producing allergens. Another is trying to create CRISPR kitties.
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To Our Readers: On the Future of Futurism
Futurism Readers – We've got some news. Like the rest of the writing on this site, we're giving you the need-to-know, sharp and succinct: We need your help to survive. Beginning today, the journalism and news-gathering of Futurism.com is going behind a metered paywall . Subscriptions, which can be found here , start at less than $1.25 a week. We'll also be launching our new exclusive video platfo
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Arecibo Observatory to Close Its Giant Eye on the Sky
After suffering severe damage from broken cables that cannot be readily repaired, the observatory's enormous radio telescope is now slated for "controlled decommissioning" — Read more on ScientificAmerican.com
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Så stor är risken att få covid-19 en gång till
Personer som tidigare haft covid-19 kan högst troligt inte få sjukdomen igen, åtminstone inte förrän sex månader efter infektionen, enligt en ny studie.
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Some Amazon rainforest regions more resistant to climate change than previously thought
Forests can help mitigate climate change, by taking in carbon dioxide during photosynthesis and storing it in their biomass (tree trunks, roots, etc.). In fact, forests currently take in around 25-30% of our human-generated carbon dioxide (CO2) emissions. Certain rainforest regions, such as the Amazon, store more carbon in their biomass than any other ecosystem or forest but when forests become wa
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New solvent-based recycling process could cut down on millions of tons of plastic waste
Multilayer plastic materials are ubiquitous in food and medical supply packaging, particularly since layering polymers can give those films specific properties, like heat resistance or oxygen and moisture control. But despite their utility, those ever-present plastics are impossible to recycle using conventional methods.
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A long distance connection: Polar climate affects trade wind strength in tropics
The impact of sea surface temperature variations in the tropical Pacific on global climate has long been recognized. For instance, the episodic warming of the tropical Pacific during El Niño events causes melt of sea ice in far-reaching parts of the Southern Ocean via its effect on the global atmospheric circulation. A new study, published this week in the journal Science Advances by an internatio
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Arecibo Observatory to Close Its Giant Eye on the Sky
After suffering severe damage from broken cables that cannot be readily repaired, the observatory's enormous radio telescope is now slated for "controlled decommissioning" — Read more on ScientificAmerican.com
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Coronavirus Business Update: Fears of 'debt tsunami' as governments ramp up borrowing
Burden for developing nations is especially acute with Zambia the latest to default
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There are microplastics near the top of Mount Everest too
Researchers analyzing snow and stream samples have found evidence of microplastic pollution on Mount Everest. While the highest concentrations of microplastics were around Base Camp where hikers and trekkers spend the most time, the team also found microplastics as high up as 8,440 meters above sea level, just below the summit.
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When Sharks Turned Up at Their Beach, They Called in Drones
A goal of the SharkEye project is to one day produce automated "shark reports" for beachgoers to help them gauge levels of risk.
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Ice storms in Russia's Far East prompts state of emergency
Freak ice storms following an abnormal weather phenomenon has left 150,000 people without water and electricity in the far eastern Russian city of Vladivostok and prompted a state of emergency.
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Experts: 2 COVID-19 vaccines bring us into 'new territory'
With two potential COVID-19 vaccines on the way, experts say we're "in new territory" in the pandemic, but it will take time to reach widespread vaccination. A week after Pfizer caused excitement with the announcement that its coronavirus vaccine has been more than 90% effective in early trials, Moderna came out with its own announcement that its version of a coronavirus vaccine had reached more
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10 Best Free Spy Apps for Android (Undetectable, Hidden & No Root)
Are you in search of the best spying app that could effectively provide you efficient spying services? This article introduces a series of state-of-the-art platforms providing exquisite spying services to users across the world.
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98 Million TikTok Followers Can't Be Wrong
Photographs by Michael Schmelling C ollab day at Clubhouse Beverly Hills was scheduled to start at 2 p.m., but that time came and went and the mansion was still as sleepy as a college dorm on Saturday morning. In one of the house's four living rooms, an enormous oil painting of George Washington loomed over a pale leather couch. A whiteboard listed ideas for future TikTok videos: shooting range,
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The Rise of Cannabis Extraction Labs
Scientists in cannabis extraction laboratories are bravely pioneering a new field of agro-chemical engineering.
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10 Best Free Spy Apps for Android (Undetectable, Hidden & No Root)
Are you in search of the best spying app that could effectively provide you efficient spying services? This article introduces a series of state-of-the-art platforms providing exquisite spying services to users across the world.
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That new study saying masks might not be effective? It has a few caveats.
At this point, numerous studies indicate that masks prevent the wearer from spreading COVID-19 to other people. There's also additional evidence that masks protect the person wearing them from catching the disease. (Unsplash/) A study published this week by scientists in Denmark found that recommendations to wear masks didn't prevent significant numbers of people from becoming infected with the n
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Daily briefing: Tips for trust-building science communication
Nature, Published online: 20 November 2020; doi:10.1038/d41586-020-03307-z Aim to inform and not persuade, say science communication experts. Plus, the iconic Arecibo telescope is to close forever and how COVID hinders taste and smell.
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Potential cellular target for eliminating bone breakdown in osteoporosis found
By disabling a function of a set of cells in mice, researchers appear to have halted the process that breaks down bone, a potential boon for osteoporosis treatment
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New study argues that migrating from cities, not travel bans, slows spread of disease
Moving from densely-populated urban regions is more effective in stopping the spreading of disease than closing borders. Two researchers from Spain and Italy ran 10,000 simulations to discover that travel bans are ultimately ineffective. Smaller cities might suffer high rates of infection, but the nation overall could benefit from this model. As the holiday season approaches, tens of millions of
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Tesla Crashes at 100 MPH, Sending Flaming Batteries Into Multiple Homes
Splinter Cell A Tesla driver slammed his 2019 Model S through a power pole and multiple trees after losing control at 100 mph in Oregon this week, local news station Fox 12 reports. The vehicle carried so much momentum that it broke apart, sending hundreds of small battery components hurtling through the air, breaking through nearby windows and even catching a bed on fire. Dangerous DUI In a test
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Satellite to track rising seas as climate warms
An Earth-observation satellite developed by European and US space agencies set to lift off Saturday will measure sea level rise, tracking changes threatening to disrupt tens of millions of lives within a generation.
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Field geology at Mars' equator points to ancient megaflood
Floods of unimaginable magnitude once washed through Gale Crater on Mars' equator around 4 billion years ago—a finding that hints at the possibility that life may have existed there, according to data collected by NASA's Curiosity rover and analyzed in joint project by scientists from Jackson State University, Cornell University, the Jet Propulsion Laboratory and the University of Hawaii.
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Scientists investigate solutions for building cell membrane defense against COVID-19
The cell membrane is the cell's outermost line of defense against SARS-CoV-2, the novel coronavirus responsible for COVID-19 disease.
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Biofriendly protocells pump up blood vessels
An international team comprising researchers from the University of Bristol, and Hunan and Central South Universities in China, have prepared biocompatible protocells that generate nitric oxide gas—a known reagent for blood vessel dilation—that when placed inside blood vessels expand the biological tissue.
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Scientists investigate solutions for building cell membrane defense against COVID-19
The cell membrane is the cell's outermost line of defense against SARS-CoV-2, the novel coronavirus responsible for COVID-19 disease.
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COVID-19 patients survive in-hospital cardiac arrest at pre-pandemic rates
Resuscitation and survival rates of hospitalized COVID-19 patients who've had cardiac arrest are much higher than earlier reports of near-zero; variation at the individual hospital level may have affected overall numbers
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New report projects severe coral bleaching globally in this century
MIAMI–The United Nations recently released a new report projecting future coral reef bleaching globally. The lead author of the report, Ruben van Hooidonk, is a scientist with NOAA's Cooperative Institute of Marine and Atmospheric Studies based at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science.
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Ribosome assembly – The final trimming step
Ribosomes synthesize all the proteins in cells. Studies mainly done on yeast have revealed much about how ribosomes are put together, but an Ludwig-Maximilians-Universitaet (LMU) in Munich team now reports that ribosome assembly in human cells requires factors that have no counterparts in simpler model organisms.
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Biophysics – geometry supersedes simulations
Ludwig-Maximilians-Universitaet (LMU) in Munich physicists have introduced a new method that allows biological pattern-forming systems to be systematically characterized with the aid of mathematical analysis. The trick lies in the use of geometry to characterize the dynamics.
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New tool helps predict outcomes for COVID-19
A study published in the American Journal of Emergency Medicine this month reports on an assessment tool developed by Kaiser Permanente researchers and physicians that helps ensure patients get the right care, when they need it, by accurately predicting the probability that patients with COVID-19 symptoms will experience severe disease or even death.
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Biofriendly protocells pump up blood vessels
An international team comprising researchers from the University of Bristol, and Hunan and Central South Universities in China, have prepared biocompatible protocells that generate nitric oxide gas—a known reagent for blood vessel dilation—that when placed inside blood vessels expand the biological tissue.
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Middle Stone Age populations repeatedly occupied West African coast
Researchers reveal evidence of Middle Stone Age occupations of the West African coast. Ranging from 62 to 25 thousand years ago, the largest well-dated assemblages from the region clearly document technological continuity across almost 40,000 years in West Africa.
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Biofriendly protocells pump up blood vessels
Researchers have prepared synthetic protocells coated in red blood cell fragments for use as nitric oxide generating bio-bots within blood vessels.
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Altered 'coat' disguises fatal brain virus from neutralizing antibodies
A genetic modification in the 'coat' of a brain infection-causing virus may allow it to escape antibodies, according to researchers. They say testing people for this and other viral mutations may help identify patients at risk for developing a fatal brain disease.
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Age is no barrier to successful weight loss
Obese patients over the age of 60 can lose an equivalent amount of weight as younger people using only lifestyle changes, according to a new study that demonstrates that age is no barrier to losing weight.
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A biochemical random number
Scientists have generated a huge true random number using DNA synthesis. It is the first time that a number of this magnitude has been created by biochemical means.
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Light-controlled nanomachine controls catalysis
The vision of the future of miniaturization has produced a series of synthetic molecular motors that are driven by a range of energy sources and can carry out various movements. A research group has now managed to control a catalysis reaction using a light-controlled motor.
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New insights into memristive devices by combining incipient ferroelectrics and graphene
Scientists are working to create neuromorphic computers, with a design based on the human brain. A crucial component is a memristive device, the resistance of which depends on the history of the device – just like the response of our neurons depends on previous input. Materials scientists analyzed the behavior of strontium titanium oxide, a platform material for memristor research and used the 2D
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New guide on using drones for conservation
Drones are a powerful tool for conservation – but they should only be used after careful consideration and planning, according to a new report.
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A neural network learns when it should not be trusted
Researchers have developed a way for deep learning neural networks to rapidly estimate confidence levels in their output. The advance could enhance safety and efficiency in AI-assisted decision making, with applications ranging from medical diagnosis to autonomous driving.
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Potential new target to combat inflammatory diseases
Researchers have uncovered a drug-like compound that blocks a crucial inflammatory pathway, potentially paving the way for a new treatment for a host of diseases — including COVID-19. The team discovered the compound could prevent up-regulation of CD14, a key inflammatory protein.
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Britons could start to receive coronavirus vaccine next month
UK government says NHS is preparing mass immunisation programme
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Scientists: How Has the Pandemic Changed Your Work?
We want to hear from scientists whose work has been upended — positively or negatively — by the pandemic.
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Climate pledge on gas boilers for 2023 'vanishes'
A government promise to ban gas boilers from new homes by 2023 has been withdrawn from its website.
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What has to happen before a Covid vaccine can be used?
News about potential vaccines has been encouraging – but when will they be ready? Coronavirus – latest updates See all our coronavirus coverage No. There are serious hurdles to be overcome first, and they are important to ensure the potential vaccine is safe. Continue reading…
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Professor: Asimov's Laws Are Outdated and It's Time to Write More
New Laws The Three Laws of Robotics, penned by sci-fi author Isaac Asimov in 1942, have shaped attitudes toward real-world robots to a striking extent: Robots must not harm humans. Robots must obey humans. Robots must protect themselves. But nearly 80 years later, AI law expert and Brooklyn Law School professor Frank Pasquale argues in a new book , we're due for some new ones. Pasquale lays out f
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TTUHSC scientist takes next step in search for bone disease treatment
For more than a decade, TTUHSC's Hiranmoy Das, Ph.D., has been investigating how KLF2 influences the development of bone and musculoskeletal diseases. Most recently, Das attempted to determine if inducing KLF2 levels in dental pulp derived stem cells will promote osteoblast and the building of new bone. His study, "KLF2 regulates dental pulp-derived stem cell differentiation through the induction
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Memories create 'fingerprints' that reveal how the brain is organized
While the broad architecture and organization of the human brain is universal, new research shows how the differences between how people reimagine common scenarios can be observed in brain activity and quantified. These unique neurological signatures could ultimately be used to understand, study, and even improve treatment of disorders such as Alzheimer's disease.
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Biofriendly protocells pump up blood vessels
Researchers have prepared synthetic protocells coated in red blood cell fragments for use as nitric oxide generating bio-bots within blood vessels.
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A biochemical random number
Scientists have generated a huge true random number using DNA synthesis. It is the first time that a number of this magnitude has been created by biochemical means.
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Light-controlled nanomachine controls catalysis
The vision of the future of miniaturization has produced a series of synthetic molecular motors that are driven by a range of energy sources and can carry out various movements. A research group has now managed to control a catalysis reaction using a light-controlled motor.
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A sulfur molecule to block the coronavirus
Some viruses can get inside cells via a mechanism that involves sulfur organic molecules. Chemists have discovered effective inhibitors and blocked the uptake of SARS-CoV-2.
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More income inequality means fewer items in grocery stores
The amount of variety available at grocery stores is highly sensitive to income inequality, according to new research. Even before COVID-19 and resulting shutdowns created gridlock for some global supply chains , the assortment at many neighborhood supermarkets was dwindling. The cause was not a lack of supply, though, but rather a lack of demand created by a widening income gap in the US, the re
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What's the Difference Between Baking Soda and Baking Powder?
Both baking powder and baking soda cause batters to rise when baked. But that doesn't mean they can be used interchangeably.
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Into Thicker Air and Onto Thinner Ice: How Climate Change Is Affecting Mount Everest
Researchers have documented that the high-altitude air is gaining more oxygen and large glaciers are melting at rapid rates
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Rare species of small cats inadequately protected
The Indian subcontinent is a hotspot for wild felines. A new study now shows that only 6-11 per cent of the areas where three rare cat species have their habitat are protected. Lack of knowledge about these species has been an obstacle to understanding their needs for reserves.
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Field geology at Mars' equator points to ancient megaflood
Floods of unimaginable magnitude once washed through Gale Crater on Mars' equator around 4 billion years ago — a finding that hints at the possibility that life may have existed there, according to data collected by NASA's Curiosity rover.
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A sulfur molecule to block the coronavirus
Some viruses can get inside cells via a mechanism that involves sulfur organic molecules. Chemists have discovered effective inhibitors and blocked the uptake of SARS-CoV-2.
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New findings speed progress towards affordable gene therapy
In a promising advance for affordable, personalized medicine, researchers have used metal-organic frameworks to successfully deliver the genetic snipping tool CRISPR/Cas9 into human cancer cells.
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Getting it just right, the Goldilocks model of cancer
Cancer is a disease driven by mutations that alter the way biochemical signals control cell growth, division and migration. Scientists found out that, like Goldilocks, cancer is very picky about getting rapid growth just right.
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Staying ahead of the curve with 3D curved graphene
A team of researchers has amplified 3D graphene's electrical properties by controlling its curvature.
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Plant research seals importance of microbes for survival and growth
Scientists have revealed that plants have a 'sealing' mechanism supported by microbes in the root that are vital for the intake of nutrients for survival and growth.
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Drug eases recovery for those with severe alcohol withdrawal
Scientists say a drug originally developed to treat high blood pressure can reduce severe withdrawal symptoms for patients diagnosed with alcohol use disorder.
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Author Correction: PQM-1 controls hypoxic survival via regulation of lipid metabolism
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19868-6
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Author Correction: The structure of a red-shifted photosystem I reveals a red site in the core antenna
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19953-w
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Should researchers shelve plans to deliberately infect people with the coronavirus?
Vaccine successes raise doubts even as planning for first "human challenge" trial continues
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To explain away dark matter, gravity would have to be really weird, cosmologists say
Analysis of early cosmic evolution points to dark matter's importance and casts doubt on modified theories of gravity
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Why Aren't There More Sci-Fi Movies About Dreams?
Classics like Inception and The Cell are at least a decade old.
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Are Covid-19 Vaccines Really 95% Effective?
You might assume that 95 out of every 100 people vaccinated will be protected from Covid-19. But that's not how the math works.
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Study: TB vaccine linked to lower risk of contracting COVID-19
A widely used tuberculosis vaccine is associated with reduced likelihood of contracting COVID-19 (coronavirus), according to a new study by Cedars-Sinai. The findings raise the possibility that a vaccine already approved by the U.S. Food and Drug Administration may help prevent coronavirus infections or reduce severity of the disease.
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Discovery illuminates how cell growth pathway responds to signals
A basic science discovery by researchers at the Johns Hopkins Bloomberg School of Public Health reveals a fundamental way cells interpret signals from their environment and may eventually pave the way for potential new therapies.
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NRL researchers catch supermassive black holes launching newborn radio jets
NRL researchers led a team of scientists who discovered some of the youngest known radio jets launched by growing supermassive black holes.
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A Year Since First Recorded Covid-19 Case, Long Endgame Begins
One year after the world's first recorded Covid-19 case, the long pandemic endgame seems to have begun. Pfizer and BioNTech, which last week announced promising results for their vaccine, said they would submit a request on Friday for emergency use authorization from the Food and Drug Administration.
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These Algorithms Could End the Scourge of Tuberculosis
In rural India and other places where tuberculosis is rampant, A.I. that scans lung X-rays might eliminate the scourge.
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Vatican Confused by How Pope Account "Liked" Sexy Pic
Holy See Pope Francis' official Instagram account did an oopsie this week: It "liked" a revealing photo of Brazilian model Natalia Garibotto wearing a schoolgirl outfit. "I can teach you a thing or two," Garibotto's post suggestively asked. It seems the Vatican was ready, figuratively, to listen to her sermons. And now the Vatican is professing confusion over how the "like" happened at all. PR Bl
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A sulfur molecule to block the coronavirus
The cell membrane is impermeable to viruses: to get inside a cell, they have to exploit the biochemical properties of the membranes. The thiol-mediated uptake is one of the entry mechanisms. A research group from the University of Geneva has identified inhibitors of thhis cellular entry that block viruses expressing the SARS-CoV-2 proteins. The study paves the way for research into new antivirals.
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SARS-CoV-2 transmission model offers decision-making pathways for safe school opening
A study in BMC Public Health reports on a new model of SARS-CoV-2 transmission in the school setting that finds if appropriate precautions are followed both in school and in the community, schools can safely remain open or reopen.
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Field geology at Mars' equator points to ancient megaflood
Floods of unimaginable magnitude once washed through Gale Crater on Mars' equator around 4 billion years ago – a finding that hints at the possibility that life may have existed there, according to data collected by NASA's Curiosity rover and analyzed in joint project by scientists from Jackson State University, Cornell University, the Jet Propulsion Laboratory and the University of Hawaii.
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Rare gene mutation hints at 'fountain of youth'
Researchers think they've found a 'fountain of youth' in a rare genetic marker — but it's unique to a few French-Canadian families. Called PCSK9Q152H, the mutation of the PCSK9 gene was initially thought to protect against cardiovascular diseases. Recent studies reveal that it may protect against other human illnesses, mainly liver diseases.
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Why Does A Virus Cause Problems In One Region But Not Another? A Study Offers Insight
In 2015, the mosquito-borne virus Zika exploded in South America. Health experts predicted it would erupt in Africa. But a major outbreak never happened. Now scientists think they understand why. (Image credit: James Gathany/CDC/Smith Collection/Gado/Getty Images)
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The Books Briefing: How Literature Helps Us Grieve
During a period of deep grief years ago, the writer Rosie Schaap opened a copy of the collected works of William Blake. The experience of reading his poem "Auguries of Innocence," she recalled, "lit a little votive in the small, dark chapel of loss, by whose light I started to see a way through." Like Schaap, many people have found the words to express their loss in literature. After losing his 2
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More Americans Died of COVID-19 Thursday Than Any Day Since May
On Thursday, the coronavirus killed 1,791 people in the U.S. That's a grim landmark — the highest single-day death toll in the country since May, Gizmodo reports , and numbers still seem to be climbing. In addition to the horrifying number of fatalities, Thursday also set some other unfortunate records. Over 182,000 new cases were confirmed, and 80,000 Americans were in the hospital on Thursday,
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How to Find Someone's Location by Cell Phone Number?
Is it possible to track someone's location by cell phone number? One needs to install and monitor through the cell phone tracking software on the target phone. Spyic is one of those hidden apps used to track a phone number quickly.
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Astronomers discover new 'fossil galaxy' buried deep within the Milky Way
Scientists working with data from the Sloan Digital Sky Surveys' Apache Point Observatory Galactic Evolution Experiment (APOGEE) have discovered a "fossil galaxy" hidden in the depths of our own Milky Way.
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Resolving long-standing mysteries about the first parallaxes in astronomy
In 1838, Friedrich Wilhelm Bessel won the race to measure the first distance to a star other than our Sun via the trigonometric parallax—setting the first scale of the universe.
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Sexual minorities, especially women, who misuse substances more likely to have psychiatric disorders
More than half of lesbian, gay and bisexual individuals who misuse alcohol or tobacco also have a co-occurring psychiatric disorder, compared to one-third of heterosexuals, a new University of Michigan study finds.
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Biofriendly protocells pump up blood vessels
In a new study published today in Nature Chemistry , Professor Stephen Mann and Dr Mei Li from Bristol's School of Chemistry, together with Associate Professor Jianbo Liu and colleagues at Hunan University and Central South University in China, prepared synthetic protocells coated in red blood cell fragments for use as nitric oxide generating bio-bots within blood vessels.
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Plant evolves to become less visible to humans
A plant used in traditional Chinese medicine has evolved to become less visible to humans, new research shows.
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Microplastics in the death zone
Researchers from the University of Plymouth's International Marine Litter Research Unit have identified the highest recorded microplastics ever found on Earth – at an altitude of more than 8,000 metres, close to the summit of Mount Everest.
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A comprehensive look at the effects of climate change on Mount Everest
Between April and June of 2019, 10 research teams composed of 34 international and Nepali scientists journeyed toward the summit of Mount Everest as part of the 2019 National Geographic and Rolex Perpetual Planet Everest Expedition. Early results from this expedition, publishing November 20 in the journal One Earth, look at the impacts of climate change and human activity on Mount Everest.
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There are microplastics near the top of Mount Everest too
Researchers analyzing snow and stream samples from the National Geographic and Rolex Perpetual Planet Everest Expedition have found evidence of microplastic pollution on Mount Everest. While the highest concentrations of microplastics were around Base Camp where hikers and trekkers spend the most time, the team also found microplastics as high up as 8,440 meters above sea level, just below the sum
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Små sällsynta kattdjur får inte tillräckligt skydd
Den Indiska subkontinenten är en så kallad "hotspot" för vilda kattdjur. Men bara 6-11 procent av de områden där tre arter sällsynta kattdjur har sin naturliga hemvist är skyddade. Bristande kunskap om arterna har hindrat förståelsen för djurens behov av reservat. 37 procent av världens kattarter finns på den Indiska subkontinenten. I den nya studien har forskarna studerat omständigheterna för ka
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A step closer to practical solar hydrogen production via elaborately modified hematite photoanode
With the increasing pressure on global carbon emissions and climate change, it is urgent to develop cleaner energy alternatives instead of fossil fuels. Hydrogen is a clean fuel with zero carbon emission because it produces only harmless water when it combusts. However, a technology to produce so-called "green hydrogen" needs to be developed further for practical applications, which employs on wat
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How to Read Someone's Text Messages without Their Phone
It would be relieving if you could read your loved ones' messages to know if they are safe or not. Read this guide to understand how to read someone's text messages without their phone with Minspy.
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Chinese flower has evolved to be less visible to pickers
Fritillaria delavayi, used in traditional medicine, turning grey to blend into rocks For thousands of years, the dainty Fritillaria delavayi has grown slowly on the rocky slopes of the Hengduan mountains in China, producing a bright green flower after its fifth year. But the conspicuous small plant has one deadly enemy: people, who harvest the flower for traditional Chinese medicine. Continue rea
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Trump's Indifference Amounts to Negligent Homicide
Negligent homicide has a specific meaning in the law books. The standards of proof and categories of offense vary from state to state. But the essence is: Someone died because someone else did not exercise reasonable care. An adult leaves loaded weapons where children can find them. A factory owner or amusement-park operator ignores the safety standards for their equipment. A motorist in a hurry,
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How role-playing a dragon can teach an AI to manipulate and persuade
An AI that completes quests in a text-based adventure game by talking to the characters has learned not only how to do things, but how to get others to do things. The system is a step toward machines that can use language as a way to achieve their goals. Pointless prose: Language models like GPT-3 are brilliant at mimicking human-written sentences, churning out stories, fake blogs, and Reddit pos
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Glyphosate may affect human gut microbiota
More than half of bacterial species in the core of the human gut microbiome are potentially sensitive to glyphosate, shows new research. Researchers introduced the first bioinformatics resource to determine and test the potential sensitivity of organisms to glyphosate.
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How tissue geometry influences the movement of cells through the body
Cells move constantly throughout our bodies, performing myriad operations critical to tissue development, immune responses and general wellbeing. This bustle is guided by chemical cues long studied by scientists interested in cellular migration.
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Improving quantum dot interactions, one layer at a time
Scientists have found a way to control an interaction between quantum dots that could greatly improve charge transport, leading to more efficient solar cells.
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Farmers Are Warming Up To The Fight Against Climate Change
Several big farm groups, traditionally hostile to environmental regulations, are now working with environmental advocates in support of farmer-friendly actions to reduce carbon emissions. (Image credit: Dan Charles/NPR)
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New guide on using drones for conservation
Drones are a powerful tool for conservation—but they should only be used after careful consideration and planning, according to a new report.
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Plant evolves to become less visible to humans
A plant used in traditional Chinese medicine has evolved to become less visible to humans, new research shows.
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How well a mask works depends on how well it fits
Mask fit and hygiene matter. (Pixabay/) At this time last year, it would have been unthinkable to see near-universal face mask wearing across North America. But that's now the norm, especially in big cities. The change was rapid and swift and now, months into this new behavior, there's still no standard for what makes a good mask, although we can tell you what makes a bad one. Popular Science ask
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This $44 reusable smart notebook connects to the cloud
Rocketbook Fusion + Mini, Pen, & Microfiber Bundle (Stack Commerce/) Every year, the average American uses enough paper to amount to some 2 billion trees a year. That's a whole lot of ecological damage, especially if you're not purchasing your paper from a certified seller. You have another option, though, if you're worried about your environmental footprint. The Rocketbook Fusion + Mini, Pen, &
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New guide on using drones for conservation
Drones are a powerful tool for conservation—but they should only be used after careful consideration and planning, according to a new report.
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Middle Stone Age populations repeatedly occupied West African coast
Although coastlines have widely been proposed as potential corridors of past migration, the occupation of Africa's tropical coasts during the Stone Age is poorly known, particularly in contrast to the temperate coasts of northern and southern Africa. Recent studies in eastern Africa have begun to resolve this, detailing dynamic behavioral changes near the coast of Kenya during the last glacial pha
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There are microplastics near the top of Mount Everest too
Researchers analyzing snow and stream samples from the National Geographic and Rolex Perpetual Planet Everest Expedition have found evidence of microplastic pollution on Mount Everest. While the highest concentrations of microplastics were around Base Camp where hikers and trekkers spend the most time, the team also found microplastics as high up as 8,440 meters above sea level, just below the sum
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Plant evolves to become less visible to humans
A plant used in traditional Chinese medicine has evolved to become less visible to humans, new research shows.
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Researchers unveil exciting new way to produce pharmaceutical ingredients cheaper and safer
A research team, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has unveiled a new eco-friendly and low-cost method to synthesize indolopyran, one type of nitrogen ring compound, contained in about 60% of drugs that are recently approved by FDA.
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Indonesian wildfires a 'fixable problem'
Indonesian wildfires that cause widespread air pollution and vast carbon emissions are a "fixable problem", according to the leader of a project set up to help tackle the issue.
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Rare species of small cats inadequately protected
The Indian subcontinent is a hotspot for wild felines. A new study headed by Uppsala University now shows that only 6-11 per cent of the areas where three rare cat species have their habitat are protected. Lack of knowledge about these species has been an obstacle to understanding their needs for reserves. The research is presented in the journal Scientific Reports .
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Nursing home residents with POLST forms three times more likely to have preferences known
Nursing home residents with medical order forms indicating their treatment preferences were three times more likely to have their current preferences documented in their medical record than residents without the forms, according to a study from Indiana University School of Nursing and IU Center for Aging Research at Regenstrief Institute.
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New guide on using drones for conservation
Drones are a powerful tool for conservation – but they should only be used after careful consideration and planning, according to a new report.
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How to Solve Our Three John Conway-Inspired Puzzles
Our October Insights puzzle celebrated the work of the legendary mathematician John Horton Conway by inviting you to play with two math questions related to his work and to explore an open-ended game similar to his famous Game of Life. I was delighted with the enthusiastic response from readers. Here are the puzzles and their solutions: Puzzle 1: Digital Perfection There is a mysterious 10-digit
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Could we treat spinal cord injuries with asparagus? | Andrew Pelling
Take a mind-blowing trip to the lab as TED Senior Fellow Andrew Pelling shares his research on how we could use fruits, vegetables and plants to regenerate damaged human tissues — and develop a potentially groundbreaking way to repair complex spinal cord injuries with asparagus.
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Highly efficient, long-lasting electrocatalyst to boost hydrogen fuel production
When hydrogen is consumed in a fuel cell, which takes the water molecule H2O and separates it into oxygen and hydrogen, a process called electrolysis, it produces only water, electricity and heat. As a zero-carbon energy source, the range of its potential use is limitless in transportation, commercial, industrial, residential and portable applications.
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SpaceX Better Than Shuttle or Soyuz, Says Astronaut Who Flew All Three
Congrats A team of four astronauts blasted off from Cape Canaveral, Florida inside a SpaceX Crew Dragon this past weekend. The team successfully reached the International Space Station just 27 hours later. Sunday night's launch was a historic moment. It was the first operational crew change mission to deliver astronauts to the space station from American soil since the retirement of the Space Shu
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New insights into memristive devices by combining incipient ferroelectrics and graphene
Scientists are working to create neuromorphic computers, with a design based on the human brain. A crucial component is a memristive device, the resistance of which depends on the history of the device – just like the response of our neurons depends on previous input. Materials scientists from the University of Groningen analysed the behaviour of strontium titanium oxide, a platform material for m
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One-way street for electrons
An international team of physicists, led by researchers of the Universities of Oldenburg and Bremen, Germany, has recorded an ultrafast film of the directed energy transport between neighbouring molecules in a nanomaterial. Theoretical simulations confirmed the experimental finding. The results have been published in the journal Nature Nanotechnology .
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Light-controlled nanomachine controls catalysis
The vision of the future of miniaturisation has produced a series of synthetic molecular motors that are driven by a range of energy sources and can carry out various movements. A research group at FAU has now managed to control a catalysis reaction using a light-controlled motor.
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In December, Jupiter, Saturn will look like double planet for first time since the Middle Ages
Just after sunset on the evening of Dec. 21, Jupiter and Saturn will appear closer together in Earth's night sky than they have been since the Middle Ages, offering people the world over a celestial treat to ring in the winter solstice.
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Glyphosate may affect human gut microbiota
Glyphosate is the most commonly used broad-spectrum herbicide. Researchers from the University of Turku in Finland have developed a new bioinformatics tool to predict if a microbe, e.g. a human gut bacterium, is sensitive to glyphosate.
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Three puzzles that are like CrossFit for your brain
From top to bottom: Cast Rotor, Oka Craft Yosegi Kuzushi, Oliver String. (Travis Rathbone/) The Rubik's Cube gets all the attention, but the colorful toy isn't the only baffling mechanical puzzle out there. Here, you can find the right level of challenge to match your solving skills. Easiest Claim victory over the roughly 6-inch-tall Oliver String by removing the center ring. The balls on either
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How Video Game Historians Resurrected Sega's Lost VR Headset
In 1993, the console maker's big plans for virtual reality fizzled. Now a team of preservationists is using emulation to bring them back.
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DNA synthesis method generates 'true random numbers'
Researchers have generated a huge true random number using DNA synthesis. It's the first time that a number of this magnitude has been created by biochemical means. True random numbers are required in fields as diverse as slot machines and data encryption. These numbers need to be truly random, such that they cannot even be predicted by people with detailed knowledge of the method used to generat
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Glyphosate may affect human gut microbiota
Glyphosate is the most commonly used broad-spectrum herbicide. Researchers from the University of Turku in Finland have developed a new bioinformatics tool to predict if a microbe, e.g. a human gut bacterium, is sensitive to glyphosate.
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Philosophical thoughts for the future
Science, philosophy, and religion all attempt to distill the essence of reality, the essence of being—albeit from very different points of departure. Writing in the International Journal of Foresight and Innovation Policy, Austrian scientist Franz Moser presents a foresight paper that looks at humanity's path from ignorance to knowledge and how ego structures have evolved into truth. Moser points
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Measuring pH locally with terahertz spectroscopy
Researchers at Ruhr-Universität Bochum have developed a new method to determine a local pH value near a specific site of a biomolecule. A reliable measurement with a pH meter is only been possible in a larger ensemble, or homogeneous bulk. The new procedure, which is based on terahertz spectroscopy, is described by the team from Resolv in the journal Angewandte Chemie International Edition, publis
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Spill-over effects show prioritizing education of very poorest improves attainment of all
International development projects that target the education of the world's very poorest children also significantly improve other young people's attainment, research indicates. The findings are based on a study of a program targeting marginalized girls in Tanzania, which showed the attainment of other boys and girls at these pupils' schools significantly improved through 'spill-over' effects. For
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Scientists discover new, simple way to classify marine biomes
Scientists have developed a new way to classify the ocean's diverse environments, shedding new light on how marine biomes are defined and changed by nature and humans.
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Alternative gene control mechanism based on organization of DNA within nucleus
Researchers have identified how the architecture of the cell nucleus can change gene activity in plants. This discovery reveals fundamental knowledge about genome regulation and points towards future methods for potentially manipulating the expression of many genes simultaneously.
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Rare species of small cats inadequately protected
The Indian subcontinent is a hotspot for wild felines. A new study headed by Uppsala University now shows that only 6–11 per cent of the areas where three rare cat species have their habitat are protected. Lack of knowledge about these species has been an obstacle to understanding their needs for reserves. The research is presented in the journal Scientific Reports.
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Returning the 'three sisters'—corn, beans and squash—to Native American farms nourishes people, land and cultures
Historians know that turkey and corn were part of the first Thanksgiving, when Wampanoag peoples shared a harvest meal with the pilgrims of Plymouth plantation in Massachusetts. And traditional Native American farming practices tell us that squash and beans likely were part of that 1621 dinner too.
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Why your scientific presentation should not be adapted from a journal article
Nature, Published online: 20 November 2020; doi:10.1038/d41586-020-03300-6 In trying to be rigorous, scientists frequently pack presentations with content from journal articles. The result can be incomprehensible and a lost opportunity.
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Beläggning på halvledare kan ge gröna bränslen från solljus
Vätgas och metanol, för till exempel bränsleceller, skulle kunna produceras mer hållbart med hjälp av solljus. Forskare vid Uppsala universitet har utvecklat ett nytt beläggningsmaterial för halvledare, något som öppnar för att framställa bränslen i processer som kombinerar direkt solljus med el. – Vi har kommit ett steg närmare vårt mål att producera framtidens bränsle från solljus, säger Sascha
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Rare species of small cats inadequately protected
The Indian subcontinent is a hotspot for wild felines. A new study headed by Uppsala University now shows that only 6–11 per cent of the areas where three rare cat species have their habitat are protected. Lack of knowledge about these species has been an obstacle to understanding their needs for reserves. The research is presented in the journal Scientific Reports.
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Returning the 'three sisters'—corn, beans and squash—to Native American farms nourishes people, land and cultures
Historians know that turkey and corn were part of the first Thanksgiving, when Wampanoag peoples shared a harvest meal with the pilgrims of Plymouth plantation in Massachusetts. And traditional Native American farming practices tell us that squash and beans likely were part of that 1621 dinner too.
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Refining the picture of the Higgs boson
To explain the masses of electroweak bosons—the W and Z bosons—theorists in the 1960s postulated a mechanism of spontaneous symmetry breaking. While this mathematical formalism is relatively simple, its cornerstone—the Higgs boson – remained undetected for almost 50 years.
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A stochastic equation for modeling population growth in cities
A team of researchers at Université Paris-Saclay, CNRS, CEA, has developed a stochastic equation for modeling population growth in cities. In their paper published in the journal Nature, the group describes creating their equation to account for "intercity migration shocks" on population changes and the factors that are involved in producing results.
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Collaborative AI effort unraveling SARS-CoV-2 mysteries wins Gordon Bell Special Prize
The Association for Computing Machinery (ACM) awarded its first ACM Gordon Bell Special Prize for High Performance Computing-Based COVID-19 Research to a multi-institution research team that included the U.S. Department of Energy's (DOE) Argonne National Laboratory.
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Collaborative AI effort unraveling SARS-CoV-2 mysteries wins Gordon Bell Special Prize
The Association for Computing Machinery (ACM) awarded its first ACM Gordon Bell Special Prize for High Performance Computing-Based COVID-19 Research to a multi-institution research team that included the U.S. Department of Energy's (DOE) Argonne National Laboratory.
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Scientists discover new, simple way to classify marine biomes
Washington State University scientists have developed a new way to classify the ocean's diverse environments, shedding new light on how marine biomes are defined and changed by nature and humans.
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Scientists discover new, simple way to classify marine biomes
Washington State University scientists have developed a new way to classify the ocean's diverse environments, shedding new light on how marine biomes are defined and changed by nature and humans.
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Study of polycyclic aroma shows molecules following same relaxation pathway and behaving more like solids than molecules
A team of researchers from Institut Lumière Matière, Universität Heidelberg and Leiden University has found via study of a whole class of polycyclic aromatic hydrocarbons (PAHs) that such molecules follow the same relaxation pathways and have size-dependent lifetimes—and behave more like solids than is typical for molecules. In their paper published in the journal Nature Physics, the group describ
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A Plug-and-play approach to integrated nanoacoustics
From taut strings vibrating in musical instruments to micro-electro-mechanical systems for optoelectronics, vibrations cover an extensive range of applications. At the nanoscale, the study of mechanical vibrations poses several challenges and opens up a virtually infinite playground for nanotechnologies. Exciting potential benefits of controlled vibrations in the GHz-THz frequency range include be
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Clearing the course for glycans in development of flu drugs
There is no hole-in-one drug treatment when it comes to the flu, but that doesn't stop scientists from trying to sink one. Especially since as many as one in five Americans gets the flu. The reported estimated cost of this illness is $10 billion each year in medical expenses and another $16 billion in lost earnings in America alone, according to researchers at UC San Diego.
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Survey shows Australians are wealthier than ever but worrying signs for some
The latest release of the Household, Income and Labor Dynamics in Australia (HILDA) Survey shows that while Australians are more prosperous than they were 18 years ago, some groups—particularly single parents—are experiencing worrying declines in economic security.
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Ancient interleukins 2, 15, and 15-like exhibited distinct functions but all bound IL-15Ra
Interleukin-15-like (IL-15L) is found in both fish and mammals and may be the last remaining cytokine shared between those species for which the function had not been determined yet. Scientists now report the first functional analysis of cytokine IL-15L which, similar to related IL-15 and primitive IL-2, forms a complex with receptor chain IL-15Ra, but in contrast to these cytokines selectively in
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A biochemical random number
ETH Zurich scientists have generated a huge true random number using DNA synthesis. It is the first time that a number of this magnitude has been created by biochemical means.
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Age is no barrier to successful weight loss, new study finds
Obese patients over the age of 60 can lose an equivalent amount of weight as younger people using only lifestyle changes, according to a new study from the University of Warwick and University Hospitals Coventry and Warwickshire (UHCW) NHS Trust that demonstrates that age is no barrier to losing weight.
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Altered 'coat' disguises fatal brain virus from neutralizing antibodies
A genetic modification in the 'coat' of a brain infection-causing virus may allow it to escape antibodies, according to Penn State College of Medicine researchers. They say testing people for this and other viral mutations may help identify patients at risk for developing a fatal brain disease.
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Dogmatic people seek less information even when uncertain
People who are dogmatic about their views seek less information and make less accurate judgements as a result, even on simple matters unrelated to politics, according to a study led by UCL and Max Planck Institute for Biological Cybernetics researchers.
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Do neural networks dream visual illusions?
This is the question studied by researchers at the Department of Information and Communication Technologies, led by Marcelo Bertalmío together with Jesús Malo, a researcher at the University of Valencia. The results of their research are published in the advanced online edition Vision Research .
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Clearing the course for glycans in development of flu drugs
There is no hole-in-one drug treatment when it comes to the flu, but that doesn't stop scientists from trying to sink one. Especially since as many as one in five Americans gets the flu. The reported estimated cost of this illness is $10 billion each year in medical expenses and another $16 billion in lost earnings in America alone, according to researchers at UC San Diego.
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El Paso County Posts Job Opening For Morgue Workers As Virus Death Toll Mounts
"The Morgue Attendant will be provided maximum PPE, will be tasked with physically moving bodies, and will require the ability to lift between 100-400 lbs. with assistance," the job listing states. (Image credit: Mario Tama/Getty Images)
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Plant research seals importance of microbes for survival and growth
Scientists have revealed that plants have a 'sealing' mechanism supported by microbes in the root that are vital for the intake of nutrients for survival and growth.
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Plant research seals importance of microbes for survival and growth
Scientists have revealed that plants have a 'sealing' mechanism supported by microbes in the root that are vital for the intake of nutrients for survival and growth.
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Pfizer wants authorization to start distributing its vaccine by Christmas
Pfizer will apply for emergency permission to distribute its covid-19 vaccine in the US and is ready to start shipping the shots within "hours" of getting a government green light, the firm said today . It is the first such application from any of the makers of covid-19 vaccines that are currently in development. If it is approved, the first people to get the shot are likely to be doctors, nurses
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New report examines benefits, costs of region-wide effort to reduce emissions from cars and trucks
A report released today by the Center for State Policy Analysis (cSPA) at Tufts University's Tisch College describes the potential impact of the Transportation Climate Initiative (TCI)—a proposal to curb emissions from gasoline and diesel fuel—in Massachusetts and other Northeastern states.
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DNA molecules yield biochemical random number
ETH scientists have generated a huge true random number using DNA synthesis. It is the first time that a number of this magnitude has been created by biochemical means.
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Understanding the 'dark' universe and primordial galaxy formation
Visible matter constitutes only 16% of the universe's total mass. Little is known about the nature of the rest of that mass, which referred to as dark matter. Even more surprising is the fact that the universe's total mass accounts for only 30% of its energy. The rest is dark energy, which is totally unknown but is responsible for the universe's accelerated expansion.
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Carbon capture and storage during waste incineration removes carbon dioxide from the atmosphere
In order to achieve the targets set out in the Paris Agreement, aiming to keep global warming to within 1.5 degrees higher than pre-industrial levels, it will not be sufficient simply to reduce emissions. We must also actively remove CO2 from the atmosphere and establish a balance between emissions and removal.
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DNA molecules yield biochemical random number
ETH scientists have generated a huge true random number using DNA synthesis. It is the first time that a number of this magnitude has been created by biochemical means.
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Who Should Get a Covid-19 Vaccine First?
If the book of nature is written in the language of mathematics, as Galileo once declared, the Covid-19 pandemic has brought that truth home for the world's mathematicians, who have been galvanized by the rapid spread of the coronavirus. So far this year, they have been involved in everything from revealing how contagious the novel coronavirus is, how far we should stand from each other, how long
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Middle Stone Age populations repeatedly occupied West African coast
In a study published in the Journal of Archaeological Science Reports , researchers from the Université Cheikh Anta Diop de Dakar, Senegal, the Max Planck Institute for the Science of Human History (MPI-SHH), and the University of Sheffield, reveal evidence of Middle Stone Age occupations of the West African coast. Ranging from 62 to 25 thousand years ago, the largest well-dated assemblages from t
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Glyphosate may affect human gut microbiota
More than half of bacterial species in the core of the human gut microbiome are potentially sensitive to glyphosate, shows new research. Researchers from the University of Turku Finland, introduced the first bioinformatics resource to determine and test the potential sensitivity of organisms to glyphosate.
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Få använder blockkedjeteknik inom offentlig sektor
Blockkedjor, som bitcoin, är en digital teknik för att överföra information på ett säkert sätt. Inom offentlig sektor går utvecklingen av blockkedjeteknik långsamt, enligt en OECD-rapport. En orsak är osäkerhet kring hur det funkar. Inom alla delar av samhället anses blockkedjor ha stor potential och många användningsområden. Inom offentlig sektor kan tekniken säkra och samtidigt förenkla arbetet
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Many employees feel underappreciated at work and would like a 'thank you' more often
A new USC study finds many workers across various job sectors feel underappreciated, especially by their bosses, and roughly half of employees say they are thanked less than once per week by their supervisors.
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Researchers develop a new test to better assess environmental impact of substances
Cadmium is used in the production of fertilizers and batteries and currently pops up in a negative way as a water pollutant. Scientists of the Senckenberg Biodiversity and Climate Research Center and the LOEWE Center for Translational Biodiversity Genomics (LOEWE-TBG) have investigated whether concentrations of this substance that are generally deemed realistic in nature can cause germ-line mutati
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Studying tiny worms could unlock new insights into human life
Two recent USC studies in tiny worms could offer insights on how genetics and diet affect reproduction and lifespan in many other species, including humans.
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Study finds evolutionary processes work at multiple levels to shape whole communities
Evolutionary theory has long held that natural selection largely operates at the level of individuals. Findings from Northern Arizona University researchers, recently published in the Annual Review of Ecology, Evolution, and Systematics, suggest that selection can also occur at multiple levels to shape whole communities. This multi-level selection arises from the interactions of key species that c
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Gels made from droplets are less stable than gels made from solid particles
. As a result, droplets also exhibit much faster and a much larger extent of amount of expelled water with time than solid particles. These are some of the findings from recent research on the driving forces of syneresis. Syneresis is a commonly seen process in foods, where a liquid layer of expelled water forms on top of e.g. yogurt. Besides food products, other materials experience syneresis, su
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Researchers develop a new test to better assess environmental impact of substances
Cadmium is used in the production of fertilizers and batteries and currently pops up in a negative way as a water pollutant. Scientists of the Senckenberg Biodiversity and Climate Research Center and the LOEWE Center for Translational Biodiversity Genomics (LOEWE-TBG) have investigated whether concentrations of this substance that are generally deemed realistic in nature can cause germ-line mutati
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Studying tiny worms could unlock new insights into human life
Two recent USC studies in tiny worms could offer insights on how genetics and diet affect reproduction and lifespan in many other species, including humans.
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Study finds evolutionary processes work at multiple levels to shape whole communities
Evolutionary theory has long held that natural selection largely operates at the level of individuals. Findings from Northern Arizona University researchers, recently published in the Annual Review of Ecology, Evolution, and Systematics, suggest that selection can also occur at multiple levels to shape whole communities. This multi-level selection arises from the interactions of key species that c
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The carrots and sticks of freshwater policy are probed
Issues around the health of our rivers and lakes are front of mind for many New Zealanders at this time. As pressures on water resources increase in New Zealand, so does the need for alternative policy approaches that can adequately address the demands of competing interests.
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New findings speed progress towards affordable gene therapy
Researchers from RMIT University used metal-organic frameworks (MOFs) enhanced with a green tea phytochemical coating to target human prostate cancer cells for the first time.
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Highly efficient, long-lasting electrocatalyst to boost hydrogen fuel production
The IBS research team developed a highly efficient and long-lasting electrocatalyst for water oxidation using cobalt, iron, and a minimal amount of ruthenium.
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Plant research seals importance of microbes for survival and growth
Scientists have revealed that plants have a 'sealing' mechanism supported by microbes in the root that are vital for the intake of nutrients for survival and growth.
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New type of ultrahigh piezoelectricity in hydrogen-bonded ferroelectrics
A new strategy is proposed to generate ultra-high piezoelectric coefficients, and many hydrogen-bonded ferroelectrics (e.g., organic PhMDA) can be ideal candidates owing to the specific features of hydrogen bonding. Their Curie temperature can be approximately doubled upon a tensile strain as low as 2 %, which can be tuned exactly to room-temperature by fixing a strain in one direction, and in ano
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Getting it just right – the Goldilocks model of cancer
Cancer is a disease driven by mutations that alter the way biochemical signals control cell growth, division and migration. Scientists at Duke-NUS Medical School found out that, like Goldilocks, cancer is very picky about getting rapid growth just right.
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T-cell abnormalities in severe COVID-19 cases
There appears to be some kind of T cell abnormality in critically ill COVID-19 patients but specific details are unclear. To shed some light on the problem, researchers performed a genetic analysis of T cells from lung tissue of COVID-19 patients. They found abnormalities that resulted in T cell overreaction that may cause severe pneumonia. The research is expected to lead to new methods for avoid
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Risk of mental disorders later in life potentially higher in kids of low-income families
The results gained in a study involving approximately one million Danish children increase the understanding of how socio-economic differences in childhood affect the development of mental disorders in the Nordic countries.
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New findings speed progress towards affordable gene therapy
In a promising advance for affordable, personalised medicine, researchers have used metal-organic frameworks to successfully deliver the genetic snipping tool CRISPR/Cas9 into human cancer cells.
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New findings speed progress towards affordable gene therapy
Researchers from RMIT University used metal-organic frameworks (MOFs) enhanced with a green tea phytochemical coating to target human prostate cancer cells for the first time.
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Global species study suggests warming planet will mean an increase in infectious diseases in cooler climates
A team of researchers from the University of South Florida, the University of Wisconsin–Madison and the University of Notre Dame has found evidence suggesting that as the planet heats up due to global warming, cooler climates are likely to see increase in infectious diseases. In their paper published in the journal Science, the group describes their study of data for wildlife populations around th
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Newly discovered mineral petrovite could revolutionize batteries
Russian scientists discover a new mineral in the volcanic area of Kamchatka in the country's far east. The mineral dubbed "petrovite" can be utilized to power sodium-ion batteries. Batteries based on salt would be cheaper to produce than lithium-ion batteries. Researchers from St. Petersburg University in Russia found a beautiful new mineral species called " petrovite ," created in the volcanos o
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Global species study suggests warming planet will mean an increase in infectious diseases in cooler climates
A team of researchers from the University of South Florida, the University of Wisconsin–Madison and the University of Notre Dame has found evidence suggesting that as the planet heats up due to global warming, cooler climates are likely to see increase in infectious diseases. In their paper published in the journal Science, the group describes their study of data for wildlife populations around th
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A mechanism for designing high-entropy alloys with improved magnetic properties
Magnetic materials are everywhere—in engines, wind turbines, electronic devices and refrigerators—so materials with better magnetic properties are highly desirable. TU Delft researchers Biswanath Dutta and Fritz Körmann of the department of Materials Science and Engineering have revealed a mechanism for improving the magnetic properties of a relatively new class of multicomponent alloys known as H
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Searching for axion dark matter conversion signals in the magnetic fields around neutron stars
According to theoretical predictions, axion dark matter could be converted into radio frequency electromagnetic radiation when it approaches the strong magnetic fields that surround neutron stars. This radio signature, which would be characterized by an ultranarrow spectral peak at a frequency that depends on the mass of the axion dark matter particle in question, could be detected using high-prec
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Nanobubble-controlled nanofluidic transport
Nanofluidic platforms can offer tunable material transport for biosensing, chemical detection and filtration. Research in the past had achieved elective and controlled ion transport based on electrical, optical and chemical gating methods of complex nanostructures. In a new report now published in Science Advances, Jake Rabinowitz and a team of researchers in electrical engineering, biological sci
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See a Male Seahorse Give Birth
Unlike almost all other animal species, it is male seahorses who become pregnant and birth young — Read more on ScientificAmerican.com
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Antibodies to SARS-CoV-2 are detected up to 3 months after infection
The follow-up study in health care workers of the Hospital Clinic de Barcelona hopes to provide information on the duration of different antibodies to SARS-CoV-2 and their role in protecting from disease and reinfection
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Breast cancer discovery could help stop disease's deadly spread
Researchers have identified a gene responsible for the spread of triple-negative breast cancer to other parts of the body and developed a potential way to stop it.
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Staying ahead of the curve with 3D curved graphene
A team of researchers has amplified 3D graphene's electrical properties by controlling its curvature.
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Emergency imaging trends in pediatric vs. adult patients for abdominal pain
According to AJR , although pediatric CT use has decreased for the evaluation of abdominal pain (perhaps due to implementing an ultrasound-first strategy for suspected appendicitis), CT use has continued to increase among adults with abdominal pain in U.S. emergency department (ED) visits. Although trends in CT use have previously been reported for children and adults, this study is the first to c
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WSU scientists discover new, simple way to classify marine biomes
Washington State University scientists have developed a new way to classify the ocean's diverse environments, shedding new light on how marine biomes are defined and changed by nature and humans.
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Improving quantum dot interactions, one layer at a time
Osaka City University scientists and colleagues in Japan have found a way to control an interaction between quantum dots that could greatly improve charge transport, leading to more efficient solar cells. Their findings were published in the journal Nature Communications .
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Hypertrophic cardiomyopathy guideline encourages shared decision-making
The American Heart Association and the American College of Cardiology today released an updated guideline for managing patients with hypertrophic cardiomyopathy (HCM). The guideline encourages shared decision-making between the clinician and patient as essential when determining treatment course and updates recommendations for sudden cardiac death (SCD) risk assessment and HCM center referrals bas
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Technology for sterilizing medical instruments goes solar
Nature, Published online: 20 November 2020; doi:10.1038/d41586-020-03278-1 A sunlight-powered device equipped with an a lightweight gel makes steam hot enough to kill dangerous microbes.
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Svensk grävjournalistik hyllas av internationella forskare
Företag som Facebook och Google gör allt större anspråk på kakan av annonsintäkter. Det har tvingat nyhetsredaktioner över hela världen att hitta nya affärsmodeller för att överleva.
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How spit gets its 'army' of proteins
A new study breaks down, in detail, where the many proteins in saliva originate. The paper in Cell Reports traces these vital proteins back to their source, showing which proteins are produced by each of the three major types of human salivary glands, and showing how individual cells within a single gland can secrete different proteins. The project also identifies proteins in the mouth that seem
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Author Correction: RNA-Seq reveals novel genes and pathways associated with hypoxia duration and tolerance in tomato root
Scientific Reports, Published online: 20 November 2020; doi:10.1038/s41598-020-75106-5
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Author Correction: Neutrophil to lymphocyte ratio and breast cancer risk: analysis by subtype and potential interactions
Scientific Reports, Published online: 20 November 2020; doi:10.1038/s41598-020-75458-y
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Author Correction: Prior Experience Alters the Appearance of Blurry Object Borders
Scientific Reports, Published online: 20 November 2020; doi:10.1038/s41598-020-75461-3
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Watch droplets chase each other like predator and prey
Scientists can make oil droplets act like predators that chase down other droplets that flee like prey. The behavior, which the droplets' chemical signaling controls, mimics behavior among living organisms. Until now, scientists hadn't recreated it in synthetic systems. This tunable chemical system could potentially serve a model to help understand interactions in many-body systems such as school
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Ugens debat: Er vi klar til solcelleboom?
PLUS. Støttefri solcelleprojekter pibler frem over hele landet og sætter fokus på vilkårene for den nye spiller i energisystemet, fortalte vi i en analyse i sidste uges avis. Og spørgsmålet om solceller kontra andre energikilder fyrede op under læserdebatten.
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Best books of 2020: Food and drink
Tim Hayward selects his must-read titles
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The Tenuous Promise of the Substack Dream
Plus: The threat of blogs, the balkanization of social media, and a new record for America's mayor.
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In Defense of Rockefeller Center's Ugly, Perfect Tree
The internet called it a metaphor for 2020. If that's true, then maybe it should be a beacon of hope for everyone.
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Pokémon Go Is Finally Raising Its Level Cap
The upcoming "Beyond" update will bring 10 additional levels plus new Pokémon and a seasons system.
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Scientists propose to make a laser scalpel with a 'curved' blade
Scientists from Tomsk Polytechnic University and Saratov State University teamed up with colleagues from Taiwan and proposed to make a laser 'blade' for a medical scalpel with a specified curved shape using a photonic 'hook'.
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Dormant threat: Abnormal proteins unleash latent toxicity in neurodegenerative diseases
Though neurodegenerative diseases are becoming more common in today's aging societies, the exact way in which accumulated abnormal proteins become toxic to neurons is unknown. In a recent study conducted at Daegu Gyeongbuk Institute of Science and Technology, Korea, scientists have discovered a new mechanism of action by which these abnormal proteins actually unlock the normally latent toxicity of
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Minuscule migrations
Cells move constantly throughout our bodies, performing myriad operations critical to tissue development, immune responses and general wellbeing. This bustle is guided by chemical cues long studied by scientists interested in cellular migration.
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The challenges of treating acute myocardial infarction due to variant angina
In a new publication from Cardiovascular Innovations and Applications; DOI https://doi.org/10.15212/CVIA.2019.1262, Wen-Yuan Ding, Jia-Min Li, Fei Zheng, Li-Li Wang, Xin-Yi Wei and Guo-Hua Li from Shandong Provincial Qianfoshan Hospital, Ji'nan, China, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji'nan, China and Shandong First Medical University, Tai'an, China cons
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Changes in vaping, other substance use, another side effect of COVID-19
Before the COVID-19 pandemic, information about the dangers of vaping was emerging. To investigate the potentially serious health and respiratory implications of vaping, Mayo Clinic researchers wanted to better understand the factors influencing vaping in the community. They were ready to launch a survey of young adults in rural and urban areas when COVID-19 shifted the focus of this survey.
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See a Male Seahorse Give Birth
Unlike almost all other animal species, it is male seahorses who become pregnant and birth young — Read more on ScientificAmerican.com
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Ikoniskt teleskop pensioneras
Radioteleskopet i Arecibo i Puerto Rico har en reflekterande botten som mäter 305 meter i diameter. Ovanför den hänger en instrumentplattform i stålkablar. I augusti 2020 lossnade en av kablarna och rev ett hål i reflektordisken. Under reparationsarbetet gick ytterligare en kabel av, vilket visade att konstruktionen är svagare än förväntat.
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WeChat group of chest pain center for patients with acute ST-segment elevation myocardial infarction
In a new publication from Cardiovascular Innovations and Applications ; DOI https://doi.org/10.15212/CVIA.2019.0590, Liu Yue, Qin Zhu-Yun, Yang Xin, Tang Rong and Gao Ling-Yun from the The First Affiliated Hospital of Chongqing Medical University, Chongqing, China consider the use of a social media platform (WeChat) to provide faster treatment and improve prognoses for a group of patients with acu
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OneWeb satellite internet company is officially reborn
Now owned jointly by UK taxpayers and an Indian conglomerate, OneWeb formally emerges from bankruptcy.
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Green hydrogen: Buoyancy-driven convection in the electrolyte
Hydrogen produced by using solar energy could contribute to a climate neutral energy system of the future. But there are hurdles on the way from laboratory scale to large-scale implementation. A team has now presented a method to visualize convection in the electrolyte and to reliably simulate it in advance with a multiphysics model.
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Scientists Analyzed 24,000 Chess Matches to Understand Cognition – Facts So Romantic
Chess offers a unique opportunity. It could perhaps be the ultimate window through which we might see how our mental powers shift during our lives. Screengrab via YouTube / Netflix In the Netflix show The Queen's Gambit , based on a novel by Walter Tevis, a burly custodian in an orphanage basement, hunched over a chess board, intrigues a nine-year-old girl named Beth Harmon, who sees him playing,
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Star merger is likely behind mysterious 'Blue Ring Nebula'
Astronomers may have finally cracked the case of the unusual blob of gas that has mystified researchers for more than 16 years. Researchers applied cutting-edge theoretical models to the smattering of data that has been collected on this object, nicknamed the Blue Ring Nebula, and posits the nebula—a cloud of gas in space—is likely composed of debris from two stars that collided and merged into a
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The Iconic Arecibo Observatory Will Be Demolished Following Cable Failures
The Arecibo Observatory in Puerto Rico has figured prominently in our coverage of the cosmos here on ExtremeTech, so we're sad to report that this iconic radio telescope will be demolished. That's not because of a lack of funding or to clear the way for a new dish. The Arecibo dish was damaged following a series of cable failures, and the National Science Foundation (NSF) has decided it would be
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Mensblod avslöjar livmoderns immunsystem
En graviditet är ett intrikat samspel mellan två konkurrerande immunsystem: moderns och barnets, som ju till hälften stammar från fadern. I vissa fall har dock kvinnor svårt att bli gravida, eller drabbas av upprepade missfall. Niklas Björkström, läkare och forskare vid Institutionen för medicin vid Karolinska institutet, studerar livmoderns immunologiska miljö.
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A Solar-Powered Rocket Might Be Our Interstellar Ticket
The idea for solar thermal propulsion has been around for decades, but researchers tapped by NASA just conducted a first test.
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Google Photos Storage Is Changing. Here Are Your Best Options
Google's unlimited free storage is going away, but that doesn't mean you're stuck. Here are alternatives for fast, flexible photo storage on all of your devices.
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Facebook Is Going After Its Critics in the Name of Privacy
The company wants to shut down an academic study of political ad targeting, just as it prepares to reinstate targeted political ads.
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All Hail the Electric Bicycle
This week, we talk about ebikes' recent upgrades, and we offer tips for those curious about riding one.
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Green hydrogen: Buoyancy-driven convection in the electrolyte
Hydrogen produced by using solar energy could contribute to a climate neutral energy system of the future. But there are hurdles on the way from laboratory scale to large-scale implementation. A team has now presented a method to visualize convection in the electrolyte and to reliably simulate it in advance with a multiphysics model.
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Build your own door and ascend to a higher level of DIY
The doors on my shed are nicer than the ones on my house. (Courtney Starr/) Building something yourself that you would ordinarily buy changes your perception of the object forever. I experienced that recently when it came time to install doors on a shed I'd just built. I thought, "Why not build them myself?" I've walked through doors thousands of times without thinking twice about them, but after
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E-Mails and Energy Efficiency
It is a useful exercise to think about the way millions or even billions of people behave to look for low-hanging fruit in terms of increased energy efficiency or environmental sustainability. While this should be a purely evidence-based and cost vs benefit exercise, it has unfortunately been sucked into the ever-growing culture war (at least in the US). Plastic straws are a great example of this
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Doing the Touchy Math on Who Should Get a COVID Vaccine First
Mathematicians model pandemic scenarios by plugging thorny ethical and logistical issues into calculations — Read more on ScientificAmerican.com
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Storm-Surfing Parasites Spread Widely
Major hurricanes scramble marine creature populations — Read more on ScientificAmerican.com
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Playstation og Xbox sætter barren for fremtidens computerspil
De to konsollers ydeevne bestemmer, hvor flotte computerspillene bliver om tre-fire år.
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'Search of a lifetime' for supersymmetric particles at CERN
A team of researchers at the University of Chicago recently embarked on the search of a lifetime—or rather, a search for the lifetime of long-lived supersymmetric particles.
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Improving quantum dot interactions, one layer at a time
Osaka City University scientists and colleagues in Japan have found a way to control an interaction between quantum dots that could greatly improve charge transport, leading to more efficient solar cells. Their findings were published in the journal Nature Communications.
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Staying ahead of the curve with 3-D curved graphene
A team of researchers has amplified 3-D graphene's electrical properties by controlling its curvature.
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Researchers develop high-performance perovskite oxide catalysts using late transition metal oxide materials
A research team, jointly led by Professor Gun-Tae Kim and Professor Jun-Hee Lee in the School of Energy and Chemical Engineering at UNIST has succeded in developing high-performance perovskite oxide catalysts using late transition metal oxide materials. Thus, they discovered the reason behind the improved performance of both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER),
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Enhancing quantum dot solar cell efficiency to 11.53%
A novel technology that can improve the efficiency of quantum dot solar cells to 11.53% has been unveiled. Published in the February 2020 issue of Advanced Energy Materials, it has been evaluated as a study that solved the challenges posed by the generation of electric currents from sunlight by solar cells by enhancing the hole extraction.
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New study presents highly-active ozygenated groups in carbon materials for oxygen reduction to hydrogen peroxide
Hydrogen peroxide (H2O2) has found many applications in the modern industry, including acting as a green oxidant in disinfectants, bleaching agents, sanitizing agents, chemical synthesis, and even as a potential energy carrier. A new catalyst, which enables on-site generation of H2O2 has been developed. It has gained much attention in both academia and industry as a quick, simple and inexpensive m
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New Chinese submersible reaches Earth's deepest ocean trench
China livestreamed footage of its new manned submersible parked at the bottom of the Mariana Trench on Friday, part of a historic mission into the deepest underwater valley on the planet.
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Storm-Surfing Parasites Spread Widely
Major hurricanes scramble marine creature populations — Read more on ScientificAmerican.com
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Q&A: Toward the next generation of computing devices
Ever noticed how our smartphones and computing devices become faster within short spans? You can thank Moore's law for that. Back in 1965, Intel co-founder Gordon Moore predicted that the processing power of computers would double about every two years, and incredibly this empirical rule-of-thumb has held on for over five decades.
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Study shows more centralized, uniform COVID-19 response needed in prisons and jails
A more centralized, uniform response to combating the COVID-19 pandemic in American prisons and jails is required to curb the spread across an especially vulnerable incarcerated population, according to new Rutgers University–Camden research.
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Researchers acquire high-Curie-temperature layered metal halide ferroelectrics via cage-confined ethylamine rotators
Two-dimensional (2-D) organic inorganic hybrid perovskite (OIHP) ferroelectrics have attracted much attention due to the combination of spontaneous polarization and excellent semiconducting properties. Nevertheless, how to effectively tune the Curie temperature (Tc) remains an obstacle to their further development.
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Abrupt permafrost thaw alters microbial structure and function
Permafrost thaw could emit substantial carbon (C) into the atmosphere, and possibly trigger a positive feedback to climate warming. As the engine of biogeochemical cycling, soil microorganisms exert a critical role in mediating the direction and strength of permafrost C-climate feedback. However, our understanding about the impacts of thermokarst (abrupt permafrost thaw) on microbial structure and
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Author Correction: CCT α is a novel biomarker for diagnosis of laryngeal squamous cell cancer
Scientific Reports, Published online: 20 November 2020; doi:10.1038/s41598-020-76737-4
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How tissue geometry influences the movement of cells through the body
Cells move constantly throughout our bodies, performing myriad operations critical to tissue development, immune responses and general wellbeing. This bustle is guided by chemical cues long studied by scientists interested in cellular migration.
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How to shift into COVID-19 research
Nature, Published online: 20 November 2020; doi:10.1038/d41586-020-03298-x Scientists who aren't virologists or vaccinologists can still make crucial contributions to the global effort to battle SARS-CoV-2.
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How tissue geometry influences the movement of cells through the body
Cells move constantly throughout our bodies, performing myriad operations critical to tissue development, immune responses and general wellbeing. This bustle is guided by chemical cues long studied by scientists interested in cellular migration.
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Researchers discover 'missing' piece of Hawaii's formation
An oceanic plateau has been observed for the first time in the Earth's lower mantle, 800 kilometers deep underneath Eastern Siberia, pushing Hawaii's birthplace back to 100 million years, says a Michigan State University geophysicist.
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Analysis of the relations between Spanish civil society organizations and science
Researchers at UPF have analyzed the relationship between civil society organizations and the Spanish science and technology system. The study has been published in Public Understanding of Science and conducted by Carolina Llorente and Gema Revuelta, at the Science, Communication and Society Studies Center (CCS-UPF), and Mar Carrió, of the Health Sciences Educational Research Group (GRECS).
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Alternative gene control mechanism based on organization of DNA within nucleus
Researchers at the University of Tokyo have identified how the architecture of the cell nucleus can change gene activity in plants. This discovery reveals fundamental knowledge about genome regulation and points toward future methods for potentially manipulating the expression of many genes simultaneously.
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Alternative gene control mechanism based on organization of DNA within nucleus
Researchers at the University of Tokyo have identified how the architecture of the cell nucleus can change gene activity in plants. This discovery reveals fundamental knowledge about genome regulation and points toward future methods for potentially manipulating the expression of many genes simultaneously.
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Margaret & Diana & Elizabeth & Nancy
The scene comes early in the first episode of The Crown 's fourth season: a drawing-room confab between two of the most powerful people in the world, a veteran ruler and an upstart newcomer. The year is 1979. The Queen (played once again by Olivia Colman) nervously adjusts a vase of flowers—the gesture of a woman subliminally preparing for the scrutiny of another woman's gaze. When Margaret Thatc
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Hospitals Know What's Coming
Editor's Note: The Atlantic is making vital coverage of the coronavirus available to all readers. Find the collection here . Perhaps no hospital in the United States was better prepared for a pandemic than the University of Nebraska Medical Center in Omaha. After the SARS outbreak of 2003, its staff began specifically preparing for emerging infections. The center has the nation's only federal qua
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Don't Eat Inside a Restaurant
Editor's Note: The Atlantic is making vital coverage of the coronavirus available to all readers. Find the collection here . T hinking too hard about saliva can really ruin a nice meal. And to eat inside a restaurant in 2020 requires ignoring the harsh reality of drool: the residue left behind by a chip dipped in a shared bowl of guacamole, the flecks of spit flung loose by a drunken laugh, and t
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What My Dad Gave His Shop
Frank Mari and his store (Carlos Chavarría) T he first time I looked at my father's Yelp reviews, I choked up. They were not all positive, and of course I read the worst ones first. My dad, Frank, runs a high-fidelity audio-video store in San Francisco and also repairs the brands he sells. One reviewer gave him one star, noting that his turntables had sat in the shop for five weeks, untouched. It
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This Pandemic Must Be Seen
If we could watch what's really going on in hospitals, there would be no more complacency.
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Iowa's Covid Wave and the Limits of Personal Responsibility
Until Monday, the governor urged Iowans to "do the right thing" but kept businesses open and masks optional. Now cases are surging and hospitals are filling up.
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Robots Invade the Construction Site
Boosted by advances in sensors and artificial intelligence, a new generation of machines is automating a tech-averse industry.
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The Future of Work: 'Remembrance,' by Lexi Pandell
"Having no consciousness at all, surrendering to the dark nothingness of death, was better than existing with a partial one."
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The US Could Soon Ban the Selling of Carrier-Locked Phones
Carrier lock-in was recently prohibited in the UK. If it finally happens here next year too, consumer advocates say the move would give users more flexibility and choice.
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Deep Frozen Arctic Microbes Are Waking Up
Thawing permafrost is releasing microorganisms, with consequences that are still largely unknown — Read more on ScientificAmerican.com
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Pfizer and BioNTech submit Covid vaccine for US approval
Doses of breakthrough shot could be authorised by mid-December
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New Scientist-Candidates for U.S. Congress Fared Worse Than Expected in 2020
Even with big health issues in the headlines, most of these challengers lost, though advocates hope the races gave science a higher policy profile — Read more on ScientificAmerican.com
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New Scientist-Candidates for U.S. Congress Fared Worse Than Expected in 2020
Even with big health issues in the headlines, most of these challengers lost, though advocates hope the races gave science a higher policy profile — Read more on ScientificAmerican.com
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PODCAST: Fremtidens skibsfart og lyden af fremtidens elbiler
Den fede, forurenende bunkerolie skal være fortid i skibsfarten. Nye, grønne brændstoffer som gas og ammoniak kan være afløseren, ligesom sejl, elmotorer og Flettner-rotorer står klar i kulissen. Tilbage på landjorden har vi samlet en række nykomponerede lyde til elbiler.
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Rocket Lab has successfully recovered a booster for the first time
New Zealand company Rocket Lab has hit a key milestone with the successful launch and recovery of its flagship Electron rocket. The mission, the firm's 16th so far, included a soft parachute landing of the first-stage booster to the ocean for the first time. The mission: Electron was launched around 1:46 a.m. local time this morning from the company's launch site on the southern tip of New Zealan
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MMR vaccine could protect against COVID-19
The measles-mumps-rubella (MMR) vaccine has been theorized to provide protection against COVID-19. In a new study published in mBio , an open-access journal of the American Society for Microbiology, researchers provide further proof of this by showing that mumps IgG titers, or levels of IgG antibody, are inversely correlated with severity in recovered COVID-19 patients previously vaccinated with t
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Climate Change Is Making Winter Ice More Dangerous
A new study has found that cold-weather drownings are increasing sharply in warmer parts of the Northern Hemisphere.
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The FDA just okayed a rapid at-home COVID test—but it won't work for everyone
Lucira Health's at-home COVID-19 kit swaps the traditional long swab that most testing centers have been using with a shorter one. (Tech Sgt. Michael Matkin/U.S. Air National Guard/) Follow all of PopSci's COVID-19 coverage here , including the latest on vaccine development , advice for flu season , and a tutorial on tips on how to de-fog your glasses . The Food and Drug Administration (FDA) gave
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Americans flock for Covid-19 tests ahead of Thanksgiving
Public health experts warn negative result is not licence to travel for public holiday
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Book Review: The Strange History of Binding Books in Human Skin
In "Dark Archives," librarian Megan Rosenbloom criss-crosses the globe to discover the origins of "anthropodermic bibliopegy," the morbid practice of binding books in human skin. Her journey spurs incisive commentary on the contexts that promote inhumane treatment of human bodies, in the past and the present.
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Frysta ägg hjälper kvinnor få barn efter bröstcancer
Kvinnor med bröstcancer vars ägg eller äggstocksvävnad frystes ned födde fler barn efter sin diagnos än kvinnor med bröstcancer som inte genomförde en sådan behandling, visar en studie av forskare vid Karolinska Institutet. Resultatet understryker vikten av rådgivning kring fertilitetsbevarande åtgärder för unga kvinnor som diagnostiserats med cancer, menar forskarna bakom studien. – Kunskap om m
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Alternative gene control mechanism based on organization of DNA within nucleus
Researchers at the University of Tokyo have identified how the architecture of the cell nucleus can change gene activity in plants. This discovery reveals fundamental knowledge about genome regulation and points towards future methods for potentially manipulating the expression of many genes simultaneously.
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Post-lockdown SARS-CoV-2 nucleic acid screening in nearly ten million residents of Wuhan, China
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19802-w Large-scale population screening can provide insights to levels of ongoing SARS-CoV-2 transmission. Here, the authors report a citywide screening of ~10,000,000 residents of Wuhan and show that SARS-CoV-2 infection prevalence was very low five to eight weeks after the end of lockdown.
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Structural asymmetry governs the assembly and GTPase activity of McrBC restriction complexes
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19735-4 The bacterial defense system McrBC is a two-component motor-driven nuclease complex that cleaves foreign DNA. Here, the authors present the structures of the GTP-specific AAA + motor protein McrB and two McrBC complexes and discuss the molecular mechanism of how McrC binding stimulates McrB GTP hydrolysis.
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Self-assembled Möbius strips with controlled helicity
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19683-z Different to exploring molecular topology, the development of supramolecular topology has been limited due to a lack of reliable synthetic methods. Here, the authors describe a supramolecular strategy to access Möbius strips through bending and cyclization of twisted nanofibers self-assembled from chiral glu
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Streamlined inactivation, amplification, and Cas13-based detection of SARS-CoV-2
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19097-x The COVID-19 pandemic has highlighted the need for user-friendly diagnostic techniques. Here, the authors present SHINE, a streamlined and optimised Cas13-based method with accompanying smartphone app for visual diagnosis.
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Dinucleosome specificity and allosteric switch of the ISW1a ATP-dependent chromatin remodeler in transcription regulation
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19700-1 Here the authors show that the preference of yeast chromatin remodeler ISW1a for dinucleosomes hinges on conformational changes that occur in the transition from binding mononucleosomes to dinucleosomes. These changes are critical for ISW1a organizing chromatin at promoters and regulating transcription in co
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Distinct dynamics of social motivation drive differential social behavior in laboratory rat and mouse strains
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19569-0 Laboratory rat and mouse strains serve as animal models to explore brain mechanisms underlying social behavior. Here, the authors describe differences in social behavior between commonly used rat and mouse strains, which may reflect distinct dynamics of social motivation.
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Astrocytic pyruvate dehydrogenase kinase-2 is involved in hypothalamic inflammation in mouse models of diabetes
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19576-1 Hypothalamic inflammation is involved in the pathogenesis of diabetes. The underlying mechanisms are unclear. Here, the authors show that astrocytic PDK2 ablation or inhibition attenuates hypothalamic inflammation in mouse models of diabetes.
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FAM3D is essential for colon homeostasis and host defense against inflammation associated carcinogenesis
Nature Communications, Published online: 20 November 2020; doi:10.1038/s41467-020-19691-z The cytokine like protein FAM3D (Fam3D in mice) is highly expressed in the digestive tract with unknown role in colon pathophysiology. Here, by using gene deficient mice, the authors show that Fam3D is critically involved in colon homeostasis, host defense against colitis-associated carcinogenesis, and the b
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