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Nyheder2021september02

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Women with intellectual or cognitive disability face extra online risks
Released today, the For My Safety report, led by QUT Associate Professor Bridget Harris and Dr. Delanie Woodlock and sector partners WWILD, WESNET, SECASA (and assisted by Women with Disabilities Victoria) details the extra burdens and obstacles women with intellectual or cognitive disability face.
5h
New superconducting material found
The phenomenon of superconductivity, providing current transmission without dissipation and a host of unique magnetic properties arising from macroscopic quantum coherence, was first discovered over a century ago. It was not understood until 1957, after which it quickly became clear that superconductors could in principle exist with a wide variety of the fundamental characteristic often referred t
5h
Studying the priming effect in aquatic sytems
In microbiology, the priming effect is the observation that the decomposition rate of organic material is often altered by the introduction of fresh organic matter. Depending on the context, the effect can be the increase or reduction of microbial consumption and a corresponding change in emitted carbon dioxide.
5h
Stora kolutsläpp från döda träd
Det finns enorma mängder kol lagrad i döda träd världen över. Nu har forskare för första gången beräknat hur mycket kol som släpps ut varje år när döda träd bryts ned av svampar och insekter. Levande träd binder betydande mängder koldioxid från atmosfären och spelar därför en viktig roll i klimatregleringen. När träden dör börjar kolet frigöras. I döda träd som finns kvar i skogen, så kallad död
5h
Improving buyer-freelancer communications in the gig economy
Researchers from University of Melbourne, Vrije Universiteit, Babson College, and University of Surrey published a new paper in the Journal of Marketing that provides generalized communication principles, and examples of how to apply them, for successful bid writing in the gig economy.
5h
Stop thinking of whale songs as language or music
A new study strengthens the argument that we should stop thinking about whale songs as the underwater analog to bird songs. Decades of research have been dedicated to understanding humpback whale songs. Why do they sing? What and where is the intended audience of these songs? To help uncover the answers, many scientists have framed whale songs as something similar to bird songs: vocalizations des
5h
Machine learning tool detects the risk of genetic syndromes in children with diverse backgrounds
With an average accuracy of 88%, a deep learning technology offers rapid genetic screening that could accelerate the diagnosis of genetic syndromes, recommending further investigation or referral to a specialist in seconds, according to a new study. Trained with data from 2,800 pediatric patients from 28 countries, the technology also considers the face variability related to sex, age, racial and
6h
Beyond dopamine: New reward circuitry discovered
The key to overcoming addictions and psychiatric disorders lives deep inside the netherworld of our brains and the circuitry that causes us to feel good. Just like space, this region of the brain needs more exploration. Researchers have now pushed the science forward on our reward pathways and found there is another pathway beyond dopamine.
6h
Having MS plus depression may be tied to increased risk of early death
Depression is common in people with multiple sclerosis (MS), and a new study shows that people with both conditions may be more likely to die over the next decade than people with just one or neither condition. The study also found that people with MS and depression have an increased risk of developing vascular disease such as heart attack and stroke.
6h
Nasal cartilage relieves osteoarthritis in the knee
Cartilage cells from the nasal septum can not only help repair cartilage injuries in the knee — according to researchers, they can also withstand the chronic inflammatory tissue environment in osteoarthritis and even counteract the inflammation.
6h
A Quarter of Sun-Like Stars Eat Their Own Planets, According to New Research
How rare is our solar system? In the 30 years or so since planets were first discovered orbiting stars other than our sun, we have found that planetary systems are common in the galaxy . However, many of them are quite different from the solar system we know. The planets in our solar system revolve around the sun in stable and almost circular paths, which suggests the orbits have not changed much
6h
Materials for superconducting qubits
The connection between microscopic material properties and qubit coherence are not well understood despite practical evidence that material imperfections present an obstacle to applications of superconducting qubits. In a new report now published on Communications Materials, Anjali Premkumar and a team of scientists in electrical engineering, nanomaterials, physics and angstrom engineering at Prin
6h
Feasting on Georgia Crawfish | Naked and Afraid
Stream Naked and Afraid on discovery+ ► https://www.discoveryplus.com/show/naked-and-afraid About Naked and Afraid: What happens when you put two complete strangers – sans clothes – in some of the most extreme environments on Earth? Each male-female duo is left with no food, no water, no clothes, and only one survival item. #NakedAndAfraid #Discovery #Survival Subscribe to Discovery: http://bit.l
6h
When human life begins is a question of politics, not biology
A Texas law that aims to eliminate almost all abortions in the state is part of a long-standing nationwide movement to restrict the right to abortion. The Texas law went into effect on Sept. 1, 2021, and severely limits the right to have an abortion in that state.
6h
Superselective colloid-surface binding visualized
Rather than one key and one strong lock, biology often uses tens or hundreds of weaker links to bind parts together, such as cell membranes. This allows for selectivity and also reversibility—the binding can also be undone. Researchers first found this phenomenon using spheres or colloids, and published their research today in theProceedings of the National Academy of Sciences.
6h
Bionic Arms
The term "bionics" was coined by Jack E. Steele in August 1958. It is a portmanteau of biologic and electronic. Martin Caidin used the word in his 1972 novel, Cyborg (which is another portmanteau of cybernetic organism). But the term really became popularized in the 1970s TV show, The Six Million Dollar Man . Of course, at the time bionic limbs seemed futuristic, perhaps something we would see in
7h
These CBD Prerolls Offer the Mellow Smoking Experience of Yesteryear
Recreational cannabis use is on the rise, thanks in part to lawmakers in many US states belatedly coming to their senses and decriminalizing the practice in 17 states and counting. As a result of this new legality, there are more choices for pure and high quality weed available than ever before, which is great. But as many have already noticed, most of the strains floating around out there have e
7h
Photovoltaic perovskites can detect neutrons
A simple and cheap device for detecting neutrons has been developed by a team of EPFL researchers and their collaborators. The device, based on a special class of crystalline compounds called perovskites, could be used to quickly detect neutrons coming from radioactive materials, e.g. a nuclear reactor that has been damaged or that is being transported nefariously, the researchers say. The work is
7h
How to calculate the ideal ingredients for nuclear fusion with the most energy
Nuclear fusion is regarded as the energy of the future. It does not emit CO2, it is safe and it provides a lot of energy that can easily supply large cities with electricity. Nuclear fusion is very interesting in theory, but not yet in practice. Scientists have already succeeded in making nuclear fusion happen, but to make it profitable a lot of research still needs to take place in the coming yea
7h
Benefits of pollinator-attracting companion plants
A recent interdisciplinary research project about how pollinator-attracting companion plants help increase yield in some horticulture crops showcases the intersection of excellence when researchers from diverse fields combine research, teaching and extension efforts to solve scientific questions.
7h
Astronomers Create 'Treasure Map' to Find Proposed Planet Nine
Nobody has found Planet Nine yet, but at least we've almost figured out where to look. Image: NASA The number of known planets in our solar system has changed over time, but we're currently sitting at eight since the demotion of Pluto to dwarf planet. However, some scientists believe there is a ninth planet lurking out there in the inky blackness at the edge of the solar system. A new analysis su
7h
Paralympians still don't get the kind of media attention they deserve as elite athletes
With no international spectators and limited domestic crowds, the importance placed on broadcasting the Paralympic Games is greater than ever before. When the Games were postponed in 2020, International Paralympic Committee (IPC) President Andrew Parsons argued that the Paralympics were needed more than ever to put disability back at the heart of the inclusion agenda.
7h
Nanosensors designed to detect plant hormones
Researchers from the Disruptive & Sustainable Technologies for Agricultural Precision (DiSTAP) Interdisciplinary Research Group (IRG) of Singapore-MIT Alliance for Research and Technology (SMART), MIT's research enterprise in Singapore and their local collaborators from Temasek Life Sciences Laboratory (TLL) and Nanyang Technological University (NTU) have developed the first ever nanosensor to ena
7h
Vanligt salt kan mäta skaderisken i strålning
Dagens alternativ för att mäta hälsoriskerna med strålning, med dosimetrar, är oftast dyra och komplicerade. Forskning visar att det går lika bra med hushållssalt. Enkla och billiga pellets av salt kan enkelt mäta stråldoser vid ofrivillig exponering, och kan även användas inom sjukvården och kärnkraftsindustrin. När saltet pressas samman till pellets förenklas hanteringen och dess egenskaper att
7h
About those "19 errors," part one
Journalist Jesse Singal took issue with Dr. Rose Lovell and Dr. AJ Eckert's guest posts about Abigail Shrier's book on transgender teens, Dr. Harriet Hall's review of the book, and the medical care of these teens, claiming that the posts contained "19 errors." In this post, Dr. Lovell responds to her share of these "19 errors," most of which are not errors. The post first appeared on Science-Bas
8h
Daily briefing: Rogue antibodies implicated in COVID deaths
Nature, Published online: 01 September 2021; doi:10.1038/d41586-021-02392-y Autoantibodies appear to be involved in almost one-fifth of COVID deaths. Plus, what the end to the 14-day limit means for lab-grown human embryos, and wave–particle duality has been quantified for the first time.
8h
Master Java Programming With 88% Off This Expert Led Training Package
While the hype is around AIs that program themselves , the demand for humans writing code is only growing and is going to keep growing as more industries add coding, machine learning, and other computer science skills to their core competencies. The Learn Java Programming: From Beginner to Advanced Bundle helps anybody from absolute beginners to experienced coders add Java to their resumes. It's
9h
Energiøens enorme havvindparker truet af ny fuglefredning
PLUS. Det bliver 'meget vanskeligt' at finde plads til 2 GW havvindmøller ved Energiø Bornholm, hvis Miljøministeriets forslag til nye fuglebeskyttelsesområder ikke justeres, skriver Energinet i et høringssvar. Energiø-projektet er dog bedst tjent med at området fredes, mener miljøretsekspert.
10h
Can we really solve the climate crisis by planting trees? (part two)
Getting trees into the ground isn't simple. Reforestation often involves trade-offs and challenges. Phoebe Weston checks in on two projects where people are planting trees, and one where it's not humans doing the planting at all. She and Patrick Greenfield from The age of extinction are back with two new episodes. Help support our independent journalism at theguardian.com/sciencepod
10h
Facile generation of bridged medium-sized polycyclic systems by rhodium-catalysed intramolecular (3+2) dipolar cycloadditions
Nature Communications, Published online: 02 September 2021; doi:10.1038/s41467-021-25513-7 The bridged medium-sized ring bicyclo[m.n.2] family of natural products are commonly found but difficult to synthesize efficiently. Here the authors present a cascade reaction to form the carbon skeleton, via a [3+2] cycloaddition of a captured azavinyl carbene intermediate.
10h
The need for robust characterization of nanomaterials for nanomedicine applications
Nature Communications, Published online: 02 September 2021; doi:10.1038/s41467-021-25584-6 Robust and precise characterization of the interactions between nanoengineered materials and biosystems is vital for the development of safe, efficient diagnostic and therapeutic nanomedicines. This comment discusses the key aspects of nanoparticle characteristics affecting the interpretation of nano-bio in
10h
Orexin receptors 1 and 2 in serotonergic neurons differentially regulate peripheral glucose metabolism in obesity
Nature Communications, Published online: 02 September 2021; doi:10.1038/s41467-021-25380-2 The wake-active orexin system plays a central role in the dynamic regulation of glucose homeostasis. Here the authors report that inactivation of the orexin receptor type 1 or 2 in serotonergic neurons differentially regulate systemic glucose homeostasis in the context of diet induced obesity.
10h
Genome-wide sequencing-based identification of methylation quantitative trait loci and their role in schizophrenia risk
Nature Communications, Published online: 02 September 2021; doi:10.1038/s41467-021-25517-3 The authors provide a comprehensive, single base resolution view of association between genetic variation and DNA methylation in human brain. They also show that heritability attributed to schizophrenia GWAS-associated variants reflects the epigenetic plasticity of the brain.
10h
Hjerterehabilitering har stadig social- og etnisk slagside
Dansk registerforskning viser, at dårligere socioøkonomisk stillede personer og ikke-etniske danskere i hjerterehabilitering efter infarkt ikke falder bagud i forhold til andre under selve rehabiliteringen. Til gengæld gør hjerterehabilitering ikke den store forskel på den lange bane.
11h
Betygshets i skolan ger ökad stress och ohälsa
Skolan kan vara en bidragande orsak till ökad psykisk ohälsa bland unga. Nedstämdhet, svårt att sova, huvudvärk och stress har ökat markant efter skolreformerna från 2011, som gav större fokus på kunskapsmätningar, tester och betyg. Det har länge spekulerats i om den psykiska ohälsan hos unga delvis kan bero på läroplanen som infördes 2011 (LGR 11) tillsammans med en rad andra förändringar i skol
12h
My Personal Quest to Study Supernovae on Mars – Issue 104: Harmony
I walked out of the airlock onto the blood-red Martian surface. My mind was crystal clear and laser focused. There was no room for panic or anxiety as I surveyed the landscape and remembered the job ahead. I had conditioned my body to instinctively complete the tasks at hand. 1. Triple check that the life support in my backpack is functioning and I can feel the stream of air tickling my face. My
18h
We Have to Talk About Doubt – Issue 104: Harmony
What is the role of reasonable doubt in advancing science? And how should we contrast scientific doubt with the cavilling doubt of conspiracy theories which play little part in advancing understanding? Over the last year we have seen the scientific method of doubt put to work in the development of entirely new kinds of vaccine and yet another kind of doubt limiting people's willingness to get vac
18h
The Universe Has Already Made Almost All the Stars It Will Ever Make – Issue 104: Harmony
Our human world is soaked in light. For starters there are the 100,000 trillion photons arriving every second at every square centimeter of Earth's dayside surface, after racing here from the outer envelope of a natural giant thermonuclear reactor we call the sun. There are also the photons that zip every which way through any cubic centimeter of open space. Some of these are the microwave leftov
18h
Here's Where Our Minds Sharpen in Old Age – Facts So Romantic
There are ways we get smarter with age, even in the domain of fluid intelligence. Photo Illustration by meboonstudio / Shutterstock Many have noted that the big contenders in the last two American presidential elections were well into their 70s, raising questions of the mental capacity, going forward, of these potential leaders. "Starting after middle age, say around 60 or so, memory and other ab
18h
Unforced Variations: Sep 2021
This month's open thread for climate science topics. Not sure about you, but we are still reading the details of the IPCC report. We are watching the unfolding hurricane season with trepidation, with particular concern related to the impacts of compound events (and not just those associated with climate), and anticipating another low, if not record, Arctic sea ice minimum. PS. At some point this
18h
How deregulation, drought and increasing fire impact Amazonian biodiversity
Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03876-7 Remote-sensing estimates of fires and the estimated geographic ranges of thousands of plant and vertebrate species in the Amazon Basin reveal that fires have impacted the ranges of 77–85% of threatened species over the past two decades.
22h
At-Home Lab Tests That Use Data to Measure Sleep, Stress, Energy, and Diet
After the last year and a half, getting your general health in check may seem like a Herculean task. According to the Kaiser Foundation , 91% of Americans think it's important to get an annual physical, but only 62% of Americans typically get one. And if you're always tired, foggy, or just feel "off," Googling your way to answers is a surefire way to convince yourself that you're either dying of
22h
The Coming Identity Crisis for AI
Artificially intelligent behavior is emergent rather than designed, which is why we have little understanding of what it is capable of. Now computer scientists are saying this needs to change before AI's widespread deployment.
23h
Palm tree disease in Florida transmitted by traveling bug from Jamaica
What began as a curious survey of an insect in Florida revealed a much larger network of movement across the Caribbean basin. Haplaxius crudus, commonly known as the American palm cixiid, transmits phytoplasmas (bacteria that cause plant diseases) in palm. The American palm cixiid is known to transmit lethal yellowing disease and lethal bronzing disease, both of which are lethal to a variety of pa
23h
This 'Set It And Forget It' Crypto Trading Platform Lets You Automate Investing
Investing in cryptocurrency can be extremely lucrative. But it also requires a lot of round-the-clock active attention to make sure you don't lose your shirt, or miss out on any quick trips to the moon. But we all have lives to lead, and we can't watch our crypto holdings day and night. But with Coinrule, you don't have to . It's an automatic crypto trading platform that lets you easily set condi
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Flooding patterns expected to change with future warming
Climate change will significantly alter future patterns of flooding, according to a new study. Although future increases in moderate storms won't necessarily lead to more runoff in many regions, extreme storms will generate more devastating and frequent flooding.
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Bionic arm restores natural behaviors in patients with upper limb amputations
Researchers have engineered a bionic arm for patients with upper-limb amputations that allows wearers to think, behave and function like a person without an amputation, according to new findings. The bionic system combines three important functions – intuitive motor control, touch and grip kinesthesia, the intuitive feeling of opening and closing the hand.
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Organic 2-oxocarboxylic acids provide link to formation of radicals and reactive oxygen species in atmospheric particles
When the humidity in the atmosphere is relatively high, the particles naturally present, also known as aerosol droplets, grow to play a significant role in the chemistry and climate of Earth. These particles are produced from either clean or polluted air, after emissions of gases that nucleate and condense while in the atmosphere. Many times this process is affected by the presence of organic (2-o
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NASA's Deep Space Network looks to the future
When NASA's Mars 2020 Perseverance rover touched down on the Red Planet, the agency's Deep Space Network (DSN) was there, enabling the mission to send and receive the data that helped make the event possible. When OSIRIS-REx took samples of asteroid Bennu this past year, the DSN played a crucial role, not just in sending the command sequence to the probe, but also in transmitting its stunning phot
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Efficacy and breadth of adjuvanted SARS-CoV-2 receptor-binding domain nanoparticle vaccine in macaques [Immunology and Inflammation]
Emergence of novel variants of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) underscores the need for next-generation vaccines able to elicit broad and durable immunity. Here we report the evaluation of a ferritin nanoparticle vaccine displaying the receptor-binding domain of the SARS-CoV-2 spike protein (RFN) adjuvanted with Army Liposomal…
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Obligate movements of an active site-linked surface domain control RNA polymerase elongation and pausing via a Phe pocket anchor [Biochemistry]
The catalytic trigger loop (TL) in RNA polymerase (RNAP) alternates between unstructured and helical hairpin conformations to admit and then contact the NTP substrate during transcription. In many bacterial lineages, the TL is interrupted by insertions of two to five surface-exposed, sandwich-barrel hybrid motifs (SBHMs) of poorly understood function. The…
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{Delta}40p53 isoform up-regulates netrin-1/UNC5B expression and potentiates netrin-1 pro-oncogenic activity [Cell Biology]
Netrin-1, a secreted protein recently characterized as a relevant cancer therapeutic target, is the antiapoptotic ligand of the dependence receptors deleted in colorectal carcinoma and members of the UNC5H family. Netrin-1 is overexpressed in several aggressive cancers where it promotes cancer progression by inhibiting cell death induced by its receptors….
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Plasma membrane phospholipid signature recruits the plant exocyst complex via the EXO70A1 subunit [Plant Biology]
Polarized exocytosis is essential for many vital processes in eukaryotic cells, where secretory vesicles are targeted to distinct plasma membrane domains characterized by their specific lipid–protein composition. Heterooctameric protein complex exocyst facilitates the vesicle tethering to a target membrane and is a principal cell polarity regulator in eukaryotes. The architecture…
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Sensitive detection of cell-derived force and collagen matrix tension in microtissues undergoing large-scale densification [Biophysics and Computational Biology]
Mechanical forces generated by cells and the tension of the extracellular matrix (ECM) play a decisive role in establishment, homeostasis maintenance, and repair of tissue morphology. However, the dynamic change of cell-derived force during large-scale remodeling of soft tissue is still unknown, mainly because the current techniques of force detection…
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Allosteric MEK inhibitors act on BRAF/MEK complexes to block MEK activation [Biochemistry]
The RAF/MEK/ERK pathway is central to the control of cell physiology, and its dysregulation is associated with many cancers. Accordingly, the proteins constituting this pathway, including MEK1/2 (MEK), have been subject to intense drug discovery and development efforts. Allosteric MEK inhibitors (MEKi) exert complex effects on RAF/MEK/ERK pathway signaling and…
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Correction for Shen and Feldman, Genetic nurturing, missing heritability, and causal analysis in genetic statistics [Corrections]
GENETICS Correction for "Genetic nurturing, missing heritability, and causal analysis in genetic statistics," by Hao Shen and Marcus W. Feldman, which was first published September 28, 2020; 10.1073/pnas.2015869117 (Proc. Natl. Acad. Sci. U.S.A. 117, 25646–25654). The authors note that, "On page 25653, the argument that NTpa and Xch are correlated…
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Toward a neurobiological model of human performance under pressure [Psychological and Cognitive Sciences]
In the penalty shootout of the 2020 Euro soccer championship, Marcus Rashford—a highly talented English player—approached the ball, took a stutter step, and blasted the ball off the side of the goalpost, missing a relatively easy shot that led to England's defeat. Paradoxically, when the stakes were highest, he performed…
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Vanity plates in Greece may be a form of 'conspicuous corruption'
In Greece, drivers cannot legally purchase custom vanity plates. However, a new study confirms an open secret: that the country has an illegal market for acquiring license plates with distinctive number patterns, perhaps as a form of "conspicuous corruption." Panos Louridas and Diomidis Spinellis of the Athens University of Economics and Business, Greece, report their findings in the open-access j
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Glioblastoma drug for dogs may work for people
A treatment for glioblastoma in dogs has promising implications for the human version of the aggressive cancer that grows in the brain, according to a new study. The study in Clinical Cancer Research describes the results of a Phase I clinical trial in which investigators tested a STING (STimulator of INterferon Genes) drug injected directly into the glioblastoma of five dogs that had previously
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Step by step to the end product through enzyme catalysis
The production of the sugar trehalose, which is used as a functional food and an additive in pharmaceutical products or in cosmetics, is a team effort for enzymes: One takes care of the construction of an energy-rich intermediate product (UDP-glucose), from which the second then makes trehalose. Flow catalysis makes the cooperation possible, even though enzyme number one works at room temperature,
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COVID survivors report more post-traumatic stress symptoms
COVID-19 survivors report significantly higher symptoms of post-traumatic stress and these symptoms are associated with changes to the brain's connectivity, according to a new study. Although COVID-19 is primarily considered a respiratory disease, experts recognize it also affects the nervous system, sometimes causing severe neurological symptoms. Some COVID-19 survivors also experience long-term
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Dutch probe mystery porpoise deaths
Dutch scientists were on Wednesday probing the mysterious deaths of dozens of harbour porpoises whose carcasses have been washing up on the country's northern beaches since last week.
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Prehistoric climate change repeatedly channelled human migrations across Arabia
Researchers have discovered archaeological sites in the Nefud Desert of Saudi Arabia associated with the remains of ancient lakes formed when periods of increased rainfall transformed the region into grassland. The researchers found that early humans spread into the region during each 'Green Arabia' phase, each bringing a different kind of material culture. The new research establishes northern Ar
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Liquid biopsies may aid diagnosis, treatment of bladder, nerve tumors
Two recent studies describe the potential of liquid biopsies to identify and track tumor growth in two very different cancers: bladder cancer and peripheral nerve tumors. Despite the differences between these cancers and their associated biopsies, the studies demonstrate the possible benefits of this relatively new tool in the fight against cancer.
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Deadwood in the global carbon cycle
Living trees absorb a considerable amount of carbon dioxide from the atmosphere and therefore play an important role in the protection of our climate. Little is known about the role of dead trees in the global carbon cycle, though. The decomposition of wood and the recycling of the nutrients it contains are among the most important processes to take place in forests.
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When walked on, these wooden floors harvest enough energy to turn on a lightbulb
Researchers are tapping into an unexpected energy source right under our feet: wooden floorings. Their nanogenerator enables wood to generate energy from our footfalls. They also improved the wood used in the their nanogenerator with a combination of a silicone coating and embedded nanocrystals, resulting in a device that was 80 times more efficient — enough to power LED lightbulbs and small elec
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Early COVID-19 shutdowns helped St. Louis area avoid thousands of deaths
In March 2020, not long after the first cases of COVID-19 were reported locally, health officials in the city of St. Louis and St. Louis County issued emergency public health orders intended to reduce interactions between people and slow the transmission of the novel respiratory virus. Such action likely saved thousands of lives in the region, according to new research.
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Patterns of income and urbanization impact mammal biodiversity in cities
City dwellers seldom experience the near-reverence of watching deer walk through their yards, both for a lack of deer and, often, a lack of a yard. In cities, not everyone has the same experiences with nature. That means that the positive effects of those experiences—such as mental health benefits—and the negative effects—such as vehicle strikes—are unequally distributed. Urban ecologists have pro
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Resuming geographic mobility will boost knowledge transfer
Among the casualties of the COVID-related decline in geographic mobility is effective knowledge transfer, that could have saved billions of dollars to companies across the world. According to research by Gianmario Verona, Professor of Management and Rector of Bocconi University, knowledge moves across organizational units with people who possess it. Such knowledge transfer, moreover, is particular
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Encapsulated NiCo alloy nanoparticles catalyzing HDO reactions
The conversion of abundant biomass and their derivatives into high value-added fuels and chemicals is envisaged as a promising green avenue to reduce our reliance on conventional fossil resources. Among them, the pyrolysis of lignocellulose has become a green and economic means for mass production of bio-oils to substitute fossil fuels. However, due to the rich oxygen contents, the obtained bio-oi
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Decision trees within a molecular memristor
Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03748-0 Multiple redox transitions in a molecular memristor can be harnessed as 'decision trees' to undertake complex and reconfigurable logic operations in a single time step.
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Structure of Geobacter pili reveals secretory rather than nanowire behaviour
Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03857-w Structural, functional and localization studies reveal that Geobacter sulfurreducens pili cannot behave as microbial nanowires, instead functioning in a similar way to secretion pseudopili to export cytochrome nanowires that are essential for extracellular electron transfer.
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Measuring the density structure of an accretion hot spot
Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03751-5 An observed one-day difference between the peaks of emission of ultraviolet and optical light from the hot spot on GM Aurigae indicates that the hot spot has a radial density gradient.
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Enantioselective synthesis of ammonium cations
Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03735-5 Enantioselective supramolecular recognition allows for the asymmetric synthesis of nitrogen stereocentres, providing chiral ammonium cations in a dynamic crystallization process.
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Functional HPV-specific PD-1+ stem-like CD8 T cells in head and neck cancer
Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03862-z An analysis of human papillomavirus (HPV)-specific CD8 T cells in patients with head and neck cancer identifies functional PD-1+TCF-1+CD8 T cells in the tumour with implications for therapeutic vaccination and PD-1 directed immunotherapy.
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RecA finds homologous DNA by reduced dimensionality search
Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03877-6 Observations of rapid repair of double-stranded DNA breaks in sister choromosomes in Escherichia coli are consistent with a reduced-dimensionality-search model of RecA-mediated repair.
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Structural basis for piRNA targeting
Nature, Published online: 01 September 2021; doi:10.1038/s41586-021-03856-x Cryo-electron microscopy structures of a PIWI–piRNA complex provide insight into how piRNAs recognise target RNAs and reveal differences from the target mechanisms of microRNAs.
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Traces of a series of human dispersals through Arabia
Nature, Published online: 01 September 2021; doi:10.1038/d41586-021-02321-z The Arabian Peninsula was a key migratory crossroads when humans and our hominin relatives began to leave Africa. Archaeological evidence and climate reconstructions reveal episodes when early humans inhabited Arabia.
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Benzene rings broken for chemical synthesis
Nature, Published online: 01 September 2021; doi:10.1038/d41586-021-02322-y Benzene rings are almost unbreakable in typical reaction conditions. Chemistry has now been developed that selectively breaks these rings open, highlighting their potential as building blocks for making open-chain molecules.
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Molecular memristors offer a path to ultra-efficient computing
Nature, Published online: 01 September 2021; doi:10.1038/d41586-021-02323-x Future progress in computing calls for innovative ways to map the physical characteristics of materials to the logic functions needed by computing architectures. An electronic device called a molecular memristor provides a way forward.
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Teeny 'water bear' walk points to evolution mystery
Tiny tardigrades walk in a manner most closely resembling that of insects 500,000 times their size, according to new research. Tardigrades earned the nickname "water bears" when scientists first observed the 0.02-inch-long animals' distinctive gaits in the 18th century. Their dumpy plod raises the question of why they evolved to walk at all. (Credit: Lisset Duran) Animals as small and soft as tar
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Cancer treatment with built-in light
Therapies should be highly effective and as free as possible of side effects — a big challenge, particularly in the case of cancer. A research team has now developed a novel form of photodynamic tumor therapy for the treatment of deep tumors that works without external irradiation. The light source is built into the drug and is 'switched on' selectively in the microenvironment of tumors.
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Quantum networks in our future
Investigators outline how a time-sensitive network control plane could be a key component of a workable quantum network. In addition to the well-understood requirements of transmission distance and data rate, for quantum networks to be useful in a real-world setting there are at least two other requirements that need to be considered. One is real-time network control, specifically time-sensitive n
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New study provides insight into lung scarring diseases without risky biopsy
Regenerative medicine researchers have created a model (using pluripotent stem cells) to show how dysfunction of a highly specialized cell of the air sacs, the type 2 pneumocyte, initiates the fibrotic cascade that characterizes a number of adult and pediatric lung diseases, including IPF and childhood interstitial lung disease (chILD).
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Föräldrastöd avgörande för höga betyg
Studieengagemang och ansträngning är viktigt för att elever ska uppnå höga betyg, men det förutsätter också mycket hemarbete och ett omfattande föräldrastöd visar forskning från Uppsala universitet. Resursstarka elever med akademiska traditioner gynnas, och andra missgynnas i dagens skolsystem. – Skolan klarar inte sitt kompensatoriska uppdrag, utan förstärker barns och ungdomars ojämlika livscha
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Improving flood projections, predictions and protection in Venice
A new assessment of flood risk in Venice indicates that the impact of higher emissions on relative sea level rise during this century will be critical in planning future defense infrastructure for Venice and other coastal cities, state the authors of a new special issue published in Natural Hazards and Earth System Sciences today.
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Home health care lowers re-hospitalization risk for people with diabetes
Medicare patients with diabetes are more likely to be re-hospitalized if they don't receive recommended home health care within two days of discharge, according to a new study. Researchers found that 27% of 786,734 Medicare beneficiaries with a diabetes-related hospital admission received home health care within two weeks of being discharged in 2015. The results also showed that Hispanic and Amer
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Soft, stretchy liquid metal turns motion into power
A new soft and stretchable liquid metal device converts movement into electricity and can even work in wet environments. "Mechanical energy—such as the kinetic energy of wind, waves, body movement, and vibrations from motors—is abundant," says corresponding author Michael Dickey, professor of chemical and biomolecular engineering at North Carolina State University. "We have created a device that
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Astronomers: Many Sun-Like Stars Already Devoured Their Planets
(Image: NASA/EASA/G. Bacon) The sun won't consume the earth for another few billion years. This is either good or bad news, depending on how you look at it. But in the meantime, we can look at other sun-like stars and see what they've been up to – and even what they've eaten recently. Spoiler: a lot of planets. A new spectral survey of sun-like binary pairs published in Nature gives the odds of a
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Power Outage on the Summer Bay | Deadliest Catch
Stream Full Episodes of Deadliest Catch: discovery+ ► https://www.discoveryplus.com/show/deadliest-catch Discovery ► https://go.discovery.com/tv-shows/deadliest-catch/ #DeadliestCatch #Discovery #TheSaga Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Follow Us on TikTok: https://www.tiktok.com/@Discovery We're on Instagram! https://instagram.com/Discovery Join Us on Facebook: https://ww
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How much wildfire smoke is infiltrating our homes?
Though overall air quality in the U.S. has improved dramatically in recent decades, smoke from catastrophic wildfires is now creating spells of extremely hazardous air pollution in the Western U.S. And, while many people have learned to reduce their exposure by staying inside, keeping windows closed and running air filtration systems on smoky days, data remains limited on how well these efforts ar
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Watercooler parts could be a source of organophosphate ester exposure
Watercoolers have become a staple in homes, offices and schools, but their tanks and parts are made of materials that could release unwanted or potentially harmful compounds into drinking water. In a preliminary study, researchers report that organophosphate esters (OPEs) were found in water dispensed from these systems, but they estimated that daily consumption would be far below the levels assoc
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Extremely strong nano-twinned pure nickel with extremely fine twin thickness
In a new report on Science Advances, Fenghui Duan and a research team in China detailed continuous strengthening in nanotwinned pure Nickel materials. The material recorded an unprecedented strength of 4.0 GPa at extremely fine twin thickness, 12 times stronger than that of conventional coarse-grained Nickel. Theories suggest diverse mechanisms of softening nanograined metals. Continuous strengthe
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Segments of the scorpion metasoma described for the first time
A team of researchers at Institut für Biowissenschaften, the University of Tübingen, Muséum d'histoire Naturelle and Route de Malagnou has fully described the anatomy of the scorpion metasoma for the first time in their paper published in Journal of the Royal Society Interface.
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Antibiotika ger ökad risk för cancer i tjocktarmen
Det finns ett tydligt samband mellan att äta antibiotika och att få en ökad risk att drabbas av cancer i tjocktarmen inom de närmaste fem till tio åren. Det kan nu forskare vid Umeå universitet slå fast efter en studie av 40 000 cancerfall. Antibiotika påverkar bakteriefloran i tarmen, vilket tros vara en orsak till den ökade cancerrisken. – Resultaten understryker att det finns flera skäl att va
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Ny vicedirektør på Holbæk Sygehus
Tidligere programdirektør for Sundhedsplatformen er ny vicedirektør på Holbæk Sygehus. Gitte Jensen-Fangel tiltræder stillingen 1. oktober, hvor hun som vicedirektør vil have det sundhedsfaglige ansvar på sygehuset.
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Psykisk ohälsa och akut magont – ett vanligt samband
Människor som söker akutvård för buksmärta har ofta psykiska symptom, visar en studie. ­­– Det tyder på att patienter som söker för akuta magsmärtor eventuellt kan dra nytta av psykiatrisk hjälp, säger Erik Lexne, läkare och doktorand i biomedicin. – Min forskning bygger på data som samlats in under ett års tid från patienter som vårdats på akutvårdsavdelningen i Kalmar för akuta buksmärtor. I sa
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Simple economic method to measure soil health in dryland farming
USDA, Agricultural Research Service's (ARS) Northern Plains Agricultural Research Laboratory, in collaboration with the Soil Health Institute in N.C., evaluated the measurement of carbon dioxide flush—a rapid, reliable, and inexpensive method producers can use to measure soil health on dryland cropping systems—and refined it to be closely associated with most soil properties and long-term crop pro
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Closing educational engagement gap for young caregivers
In collaboration with Swansea University, a new study published today by Public Health Wales evidences the negative impact that caring responsibilities have on educational participation in those aged 16–22, and how this has the greatest impact on those living in the most deprived areas.
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What's the point of homework?
Homework hasn't changed much in the past few decades. Most children are still sent home with about an hour's worth of homework each day, mostly practicing what they were taught in class.
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Distance learning skills are learnable
In the last 18 months, the coronavirus pandemic has made distance learning somewhat of a norm in almost all education levels. In the national surveys on students, the respondents often mention lack of motivation. During distance learning, staying motivated clearly has been challenging.
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Using DNA to search for the true origins of imported honey
Have you ever wondered where the honey you add to your morning tea and drizzle on your desserts or oatmeal comes from (besides bees)? The easy answer would be to check the label, which typically offers the country of origin along with all those wonderful nutritional benefits. Unfortunately, as the Department of Homeland Security's Science and Technology Directorate (S&T) knows all too well, someti
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Is Solar Worth It? It's Never Been Easier To Find Out.
We can all agree that solar power is great in theory. It's clean, it's abundant, and as long as the sun doesn't disappear anytime soon, it's 100-percent renewable. It has the potential to reduce your monthly utility bill while at the same time helping to reduce our dependence on fossil fuels. Best of all, solar power has never been cheaper. However, despite all these positives, it still doesn't m
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Satellites measure drought stress in plants with aim of increasing crop yields
With a satellite system that measures drought stress in plants, two researchers from the Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI, have now founded the spin-off ConstellR. Their technology enables the agricultural sector to optimize the irrigation of areas under cultivation to increase crop yields. The first sensor system will be launched into space in early 2022 and
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Fight Back Against Privacy Invaders With 59% Off Optery
The internet has done some great things, yet it's also enabled an invasion of personal privacy to a degree unparalleled in human history . But it's not something you have to just accept. Optery Data Broker Removal helps you find, track, and remove data brokers from your online life. Valued at $119, a 1-year subscription is now on sale for just $49. The Unseen Snoops Even the most careful of us on
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Setting biodiversity and climate targets for national conservation action by 2030 in Asia
A research team led by Prof. Ma Keping from the Institute of Botany of the Chinese Academy of Sciences (IBCAS), in collaboration with scientists from multiple universities and research institutions, developed a scalable framework to identify complementary biodiversity and climate targets that are implementable at the national level whilst being reflective of broader biodiversity patterns.
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Is it safe for unvaccinated children to go to school in person?
Back-to-school is here again. While we might hope that beginning the academic year with schools open for in-person learning would set the trend for the rest of the year, the presence of new variants of SARS-CoV-2, the virus that causes COVID-19, makes everything less certain.
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Nærhospitalerne er her allerede
Spørgsmålet er, hvad der skal ske med de over 3.500 sengepladser, kommunerne allerede har. Skal vi bare fortsætte med at lade kapaciteten vokse, mens vi lukker endnu flere medicinske hospitalssenge, eller hvad er planen?
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China wants to build a spaceship that's kilometers long
It's no secret that China has become a major contender in spaceflight. In the past 20 years, the China National Space Agency (CNSA) has accomplished some historic firsts. This includes sending astronauts to space, deploying three space stations (as part of the Tiangong program), developing heavy launch vehicles (like the Long March 5), and sending robotic explorers to the far side of the moon and
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Soil legacy effect of global change influences invasiveness of alien plants
Global change characterized by land use change and extreme precipitation has emerged as a challenge for tropical forests in Southeast Asia. Numerous studies have indicated that these changes could affect soil ecology. However, it remains unclear whether land use change and extreme precipitation influence plant invasiveness in tropical forests.
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Daily briefing: Europe's first gene-edited wheat trial
Nature, Published online: 31 August 2021; doi:10.1038/d41586-021-02389-7 UK green-lights trial of CRISPR-edited wheat developed to reduce a cancer-causing chemical in toast. Plus, inside a US intelligence report on the origins of SARS-CoV-2 and the Pfizer labs where scientists grapple with coronavirus variants.
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Stable, active CO2 reduction to formate via redox-modulated stabilization of active sites
Nature Communications, Published online: 01 September 2021; doi:10.1038/s41467-021-25573-9 Stable electrochemical reduction to formate is still challenging. Here, the authors demonstrate a redox-modulation and active-site stabilization strategy for CO2 to formate conversion over 100 days of continuous operation at 100 mA/cm2 with a cathodic energy efficiency of 70%.
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Major restructuring of marine plankton assemblages under global warming
Nature Communications, Published online: 01 September 2021; doi:10.1038/s41467-021-25385-x Warming will affect marine plankton biomass, but also its diversity and community composition in poorly understood ways. Here, the authors model the spatial distribution of 860 marine plankton species from 10 functional groups and identify the future hotspots of climate change impacts under RCP8.5.
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Defining the RBPome of primary T helper cells to elucidate higher-order Roquin-mediated mRNA regulation
Nature Communications, Published online: 01 September 2021; doi:10.1038/s41467-021-25345-5 An extensive RNA binding protein atlas (RBPome) for primary T cells would be a useful resource. Here the authors use two different methods to characterise the mouse and human T cell RBPome and show regulation of Roquin-1/2 dependent and independent pathways.
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DEEP picker is a deep neural network for accurate deconvolution of complex two-dimensional NMR spectra
Nature Communications, Published online: 01 September 2021; doi:10.1038/s41467-021-25496-5 The analysis of NMR spectra of complex biochemical samples with respect to individual resonances is challenging but critically important. Here, the authors present a deep learning-based method that accelerates this process also for crowded NMR data that are non-trivial to analyze, even by expert NMR spectro
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Quantum enhanced multiple-phase estimation with multi-mode N00N states
Nature Communications, Published online: 01 September 2021; doi:10.1038/s41467-021-25451-4 N00N states are a key resource in quantum metrology, but the use of their multi-mode extension for multiparameter estimation has been elusive so far. Here, the authors use multi-mode N00N states – with N=2 photons in 4 modes – for multiple-phase estimation saturating the quantum Cramer-Rao bound.
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Epistatic Net allows the sparse spectral regularization of deep neural networks for inferring fitness functions
Nature Communications, Published online: 01 September 2021; doi:10.1038/s41467-021-25371-3 Finding a biologically-relevant inductive bias for training DNNs on large fitness landscapes is challenging. Here, the authors propose a method called Epistatic Net that improves DNN prediction accuracy and interpretation speed by integrating the knowledge that higher-order epistatic interactions are usuall
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Ultra-thin self-healing vitrimer coatings for durable hydrophobicity
Nature Communications, Published online: 01 September 2021; doi:10.1038/s41467-021-25508-4 By now a plethora of ultrathin hydrophobic coatings are available but their durability are not well developed. Here, the authors present a thin, durable and fluorine-free PDMS-based vitrimer coating that implements many desirable aspects like energy efficiency, durability and sustainability.
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Endangered Bengal tiger cub born at Nicaragua zoo
A Bengal tiger cub is being cared for by humans at Nicaragua's National Zoo after its mother was unable to produce the milk necessary to feed the latest little addition to the endangered species, the zoo's director Eduardo Sacasa said Tuesday.
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Reading Aloud without a Mask, Olfactory Bulbs, Omega Variant
Here's the latest alarming COVID news to distract you from fires and hurricanes. {I'm very sorry if you are experiencing either of these disasters personally. Donations ideas: El Dorado Community Foundation and The Mutual Aid Response Network . } Caldor Fire : Karl Mondon/Bay Area News Group. Hurricane Ida : Edmund D. Fountain/New York Times. Masklessness Outbreak Associated with SARS-CoV-2 B.1.6
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Biomarkers found for COVID-19 condition in children
A rare but serious inflammatory condition that affects children who contract COVID-19 produces a distinctive pattern of biomarkers that may help physicians predict disease severity and also aid researchers in developing new treatments, according to a new study.
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