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Pre-Columbian transregional captive rearing of Amazonian parrots in the Atacama Desert [Anthropology]
The feathers of tropical birds were one of the most significant symbols of economic, social, and sacred status in the pre-Columbian Americas. In the Andes, finely produced clothing and textiles containing multicolored feathers of tropical parrots materialized power, prestige, and distinction and were particularly prized by political and religious elites….
34min

LATEST

Sports Should Boycott Georgia
Major League Baseball is scheduled to hold its 91st All-Star Game at Truist Park in Atlanta on July 13—the first time in 21 years the league's annual showcase is to be played in that city. But pro baseball should extend Atlanta's All-Star drought, and other sports should avoid scheduling their own signature events in Georgia, to show Republican state lawmakers that their latest efforts at voter s
4h
Australasian genetic influence spread wider in South America than previously thought
A team of researchers from Universidade de São Paulo, Universidade Federal do Rio Grande do Sul and Universitat Pompeu Fabra, has found evidence of a genetic Australasian influence in more parts of South America than just the Amazon. In their paper published in Proceedings of the National Academy of Sciences, the group describes their study of a genomic dataset from multiple South American populat
3h
Theoretical physicists predict quantum interactions within 3D molecules
Within the realm of quantum mechanics, the generation of quantum entanglement remains one of the most challenging goals. Entanglement, simply put, is when the quantum state of each particle or a group of particles is not independent of the quantum states of other particles or groups, even over long distances. Entangled particles have always fascinated physicists, as measuring one entangled particl
2h
Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry [Anthropology]
Different models have been proposed to elucidate the origins of the founding populations of America, along with the number of migratory waves and routes used by these first explorers. Settlements, both along the Pacific coast and on land, have been evidenced in genetic and archeological studies. However, the number of…
34min
Reconciling early Deccan Traps CO2 outgassing and pre-KPB global climate [Earth, Atmospheric, and Planetary Sciences]
A 2 to 4 °C warming episode, known as the Latest Maastrichtian warming event (LMWE), preceded the Cretaceous–Paleogene boundary (KPB) mass extinction at 66.05 ± 0.08 Ma and has been linked with the onset of voluminous Deccan Traps volcanism. Here, we use direct measurements of melt-inclusion CO2 concentrations and trace-element…
34min
Starship Prototype Launches in Heavy Fog, Blows Up Dramatically
SpaceX launched its latest full-scale Starship prototype to a height of ten kilometers this morning — but we couldn't see very much this time around. This time, we only heard the explosion that rocked the launch site. The sky lit up in orange hues, suggesting at what we could've seen if it wasn't for the heavy fog blanketing the the space company's Boca Chica, Texas, launch site. It's another wor
3h
After Latest Explosion, Elon Musk Vows to Test Another Starship Within Days
Another day, another Starship prototype explosion. In November, SpaceX's SN8 met its early damage after smashing into the ground, followed by SN9 in February. SN10 came closest to touching down successfully earlier this month, appearing to make a soft landing before blowing to bits mere minutes later. Less than a month later, SpaceX rolled out its SN11 prototype onto the launchpad. This morning's
1h
VW's New "Voltswagen" Name Not an April Fool's Joke
Voltswagen German carmaker Volkswagen is really rebranding its North American division to "Voltswagen," a nod to its electrified future. The company accidentally leaked the news, as spotted by CNBC , on Monday afternoon, with many suggesting it may have been a poorly timed April fool's joke. Now, VW has confirmed that is indeed renaming the division in a press release . "We might be changing out
3h
Mathematicians Find a New Class of Digitally Delicate Primes
Take a look at the numbers 294,001, 505,447 and 584,141. Notice anything special about them? You may recognize that they're all prime — evenly divisible only by themselves and 1 — but these particular primes are even more unusual. If you pick any single digit in any of those numbers and change it, the new number is composite, and hence no longer prime. Change the 1 in 294,001 to a 7, for instance
3h
Trump's Presidency Is Over. So Are Many Relationships.
American political discourse was not exactly harmonious five years ago, but over the course of Donald Trump's presidency, it corroded even further. What's called the national conversation is really just millions of people communicating with each other, and if you could tune out all the yelling, you might be able to detect some of the silences that have arisen when two people stopped talking entir
2h
Child Tweets Nonsense From Official US Military Account
Secret Code On Monday, the US Strategic Command — that's the agency that controls the military's nukes — tweeted a bizarre string of characters that left the internet confused and perhaps mildly concerned. Not that there's anything wrong with occasionally firing up Twitter and broadcasting ";l;;gmlxzssaw" to the world, of course. But Stratcom helps oversee and manage the country's nuclear arsenal
1h
An ecosystem to overhaul China's health care
Like many countries, China has a health care problem. Changing demographics and lifestyles mean demand for health care is outstripping growth in medical resources and its cost is rising faster than the insurance premium. With 250 million people over the age of 60, the world's most populous country is ageing. Diseases associated with more affluent societies, such as cardiovascular conditions and d
2h
Cardiorespiratory fitness improves grades at school
Studies indicate a link between children's cardiorespiratory fitness and their school performance: the more athletic they are, the better their marks in the main subjects. Similarly, cardiorespiratory fitness is known to benefit cognitive abilities. But what is the real influence of such fitness on school results? Researchers tested pupils from eight Geneva schools. Their results show that there i
3h
Light pollution from satellites 'poses threat' to astronomy
Mega-constellations could cause scientists to miss out on crucial discoveries, warn researchers Artificial satellites and space junk orbiting the Earth can increase the brightness of the night sky, researchers have found, with experts warning such light pollution could hinder astronomers' ability to make observations of our universe. There are more than 9,200 tonnes of space objects in orbit arou
2h
The Unending Assaults on Girlhood
Girlhood, Melissa Febos writes in her new essay collection of the same name, is "a darker time for many than we are often willing to acknowledge." The overall impression she creates is a collage of discomfitingly familiar rites of passage, all distinct and yet all tied together by a thread of learned self-abnegation. The book reads at moments like a meme built from various half-buried abuses and
3h
Chronic inflammatory liver disease: Cell stress mechanisms identified
Primary sclerosing cholangitis (PSC) is a rare, chronic, inflammatory disease of the bile ducts and is difficult to treat, since its causes have not yet been adequately researched. An international research consortium has now succeeded in identifying a new prognostic factor for PSC from liver biopsies. This is so-called cellular ER stress.
3h
Watch Dirt Spray Up as Starship Debris Lands Next to Camera
Orange Cloud SpaceX launched yet another full-scale prototype of its Mars-bound Starship early Tuesday morning at its test facilities in Boca Chica, Texas. Thanks to heavy fog, we had to watch the ensuing explosion in the form of a lit up orange cloud. The team at NASASpaceflight , who had set up remote cameras to record the events, are now reviewing the footage — and it's not pretty. Rain of Deb
3h
A scalable empathic supervision intervention to mitigate recidivism from probation and parole [Psychological and Cognitive Sciences]
Incarceration is a pervasive issue in the United States that is enormously costly to families, communities, and society at large. The path from prison back to prison may depend on the relationship a person has with their probation or parole officer (PPO). If the relationship lacks appropriate care and trust,…
34min
'Delay is as dangerous as denial': scientists urge Australia to reach net zero emissions faster
Heatwaves to double and many properties will be uninsurable if global heating reaches 3C, Australian Academy of Science says Global heating of 3C would more than double the number of annual heatwaves in some parts of Australia, leave properties uninsurable due to flood and fire risk, and make many of the country's ecosystems "unrecognisable", according to Australia's leading scientists. The Austr
58min
Provisional COVID-19 infrastructure induces large, rapid increases in cycling [Sustainability Science]
The bicycle is a low-cost means of transport linked to low risk of transmission of infectious disease. During the COVID-19 crisis, governments have therefore incentivized cycling by provisionally redistributing street space. We evaluate the impact of this new bicycle infrastructure on cycling traffic using a generalized difference in differences design….
36min
EU plan threatens British participation in hi-tech research
Commission security proposal would restrict UK access to Horizon Europe quantum computing project Britain will join China in being locked out of research with the EU on cutting-edge quantum technology, such as new breeds of supercomputers, due to security concerns under a European commission proposal opposed by academics and 19 member states. At a meeting on Friday, commission officials said the
27min
Astronomers thought comet Borisov was pretty boring. They were wrong
Our solar system is full of comets that whizz by as we track them over centuries. But humans have so far seen only two visiting objects from outside the solar system. There's 'Oumuamua, the interstellar asteroid that we think might actually be a flat pancake-like rock originating from the remains of an exoplanet similar to Pluto. It's so weird that people thought maybe it was an alien spacecraft.
33min
A coupled human-natural system analysis of freshwater security under climate and population change [Environmental Sciences]
Limited water availability, population growth, and climate change have resulted in freshwater crises in many countries. Jordan's situation is emblematic, compounded by conflict-induced population shocks. Integrating knowledge across hydrology, climatology, agriculture, political science, geography, and economics, we present the Jordan Water Model, a nationwide coupled human–natural-engineered syst
34min
'Spacekime theory' could speed up research and heal the rift in physics
Our linear model of time may be holding back scientific progress. Spacekime theory can help us better understand the development of diseases, financial and environmental events, and even the human brain. This theory helps us better utilize big data, develop AI, and can even solve inconsistencies in physics. We take for granted the western concept of linear time. In ancient Greece, time was cyclic
1h
Factors that may predict next pandemic
New modeling identifies country-specific human and human-influenced environmental factors associated with disease outbreaks. A country's land area, human population density, and area of forest are associated with zoonotic diseases, like COVID-19. Human development index, average annual temperature, and health expenditure predict other kinds of disease.
58min
New statistical method eases data reproducibility crisis
A reproducibility crisis is ongoing in scientific research, where many studies may be difficult or impossible to replicate and thereby validate, especially when the study involves a very large sample size. Now researchers have developed a statistical tool that can accurately estimate the replicability of a study, thus eliminating the need to duplicate the work and effectively mitigating the reprod
3h
The Mortifications of Beverly Cleary
The childhood memories we retain most searingly tend to involve shame. When I was 6, after being chided twice for talking too loudly during lunch, I was made to stand in the cafeteria by myself until the other kids finished their food. I can't even type that sentence without flushing at how conspicuously bad I felt, and how alone. Humiliation is a kind of trauma; when we experience it, our nervou
1h
New early warning system for self-driving cars
A team of researchers has developed a new early warning system for vehicles that uses artificial intelligence to learn from thousands of real traffic situations. The results show that, if used in today's self-driving vehicles, it can warn seven seconds in advance against potentially critical situations that the cars cannot handle alone – with over 85% accuracy.
58min
NASA's Curiosity Mars rover takes selfie with 'Mont Mercou'
At the start of March, NASA's Curiosity Mars rover began approaching an impressive rock formation that scientists dubbed "Mont Mercou," a nickname taken from a mountain in France. Standing about 20 feet (6 meters) tall, the outcrop is captured in all its majesty in a new selfie, as well as in a pair of panoramas that offer a 3D view. The selfie shows Curiosity in front of Mont Mercou with a new dr
1h
A Contest Is Sending These Mere Mortals Into Orbit For Free
Earlier this year, a billionaire named Jared Isaacman announced that he was picking three lucky winners to go to on a free multi-day journey into orbit on board a SpaceX Crew Dragon capsule. Isaacman, who is helping finance the expedition — and will be joining in on the fun himself — announced at the time that he's looking to raise money for childhood cancer research through a raffle. Bone cancer
48min
ATLAS searches for pairs of Higgs bosons in a rare particle decay
Since the Higgs boson was discovered in 2012, scientists at the Large Hadron Collider (LHC) have been studying the properties of this very special particle and its relation to the fundamental mechanism essential to the generation of mass of elementary particles. One property that remains to be experimentally verified is whether the Higgs boson is able to couple to itself, known as self-coupling. S
2h
The diversity of stomatal development regulation in Callitriche is related to the intrageneric diversity in lifestyles [Plant Biology]
Stomata, the gas exchange structures of plants, are formed by the division and differentiation of stem cells, or meristemoids. Although diverse patterns of meristemoid behavior have been observed among different lineages of land plants, the ecological significance and diversification processes of these different patterns are not well understood. Here we…
34min
New oil palm map to inform policy and landscape-level planning
IIASA researchers have used Sentinel 1 satellite imagery from the European Space Agency to produce a map of the extent and year of detection of oil palm plantations in Indonesia, Malaysia, and Thailand that will help policymakers and other stakeholders understand trends in oil palm expansion while also providing an accurate map for landscape-level planning.
1h
The egg in the X-ray beam: A peek at what happens to an egg when you cook it
A team of scientists has been using DESY's X-ray source PETRA III to analyze the structural changes that take place in an egg when you cook it. The work reveals how the proteins in the white of a chicken egg unfold and cross-link with each other to form a solid structure when heated. Their innovative method can be of interest to the food industry as well as to the broad field of research surroundi
2h
High-entropy-stabilized chalcogenides with high thermoelectric performance
Thermoelectric technology can generate electricity from waste heat, although their performance can result in a bottleneck for wider applications. Materials scientists can regulate the configurational entropy of a material by introducing different atomic species to tune phase composition and extend the performance optimization space. In a new report now on Science, Binbin Jang et al. used an n-type
4h
Prosthetic fin could save injured rare turtles
Researchers from AUT BioDesign Lab have developed a prosthetic fin to rehabilitate injured sea turtles. Healthy oceans need sea turtles, but they are unfortunately frequently injured by human factors such as boats and fishing nets, with all seven species now endangered. A damaged fin limits swimming range and survival and prevents female turtles from returning to land to lay eggs. A successful pro
2h
Presynaptic {alpha}2{delta} subunits are key organizers of glutamatergic synapses [Neuroscience]
In nerve cells the genes encoding for α2δ subunits of voltage-gated calcium channels have been linked to synaptic functions and neurological disease. Here we show that α2δ subunits are essential for the formation and organization of glutamatergic synapses. Using a cellular α2δ subunit triple-knockout/knockdown model, we demonstrate a failure in…
34min
About 50% of people in UK have antibodies against coronavirus
Study by Office for National Statistics based on data from blood test results Coronavirus – latest updates See all our coronavirus coverage Half of people in the UK now have antibodies against coronavirus, either through infection or vaccination, tests conducted by the Office for National Statistics (ONS) show. According to the most recent coronavirus infection survey , an estimated 54.7% of the
9min
Climate crisis: Keeping hope of 1.5°C limit alive is vital to spurring global action
Ever since governments at the 2015 Paris climate summit set 1.5°C as the desired limit for global warming, scientists and journalists alike have regularly asked whether it is achievable. The question arose again recently when the UN published a report of national emission-cutting pledges for the next decade. It will be posed regularly before the publication of the IPCC's Sixth Assessment Report in
2h
Herpesvirus triggers cervical cancer affecting nearly one in four adult sea lions
After more than three decades of research, scientists have proven that the cancer affecting up to one in four adult California sea lions necrospied at The Marine Mammal Center in Sausalito, CA, is caused by a sexually transmitted herpesvirus. The cancer, known as sea lion urogenital carcinoma, has clear parallels to cervical cancer in humans and provides a helpful model for human cancer study.
9min
How will the biggest tropical trees respond to climate change?
Giant trees in tropical forests, witnesses to centuries of civilization, may be trapped in a dangerous feedback loop according to a new report in Nature Plants from researchers at the Smithsonian Tropical Research Institute (STRI) in Panama and the University of Birmingham, U.K. The biggest trees store half of the carbon in mature tropical forests, but they could be at risk of death as a result of
9min
Why are optical refractive indices so small?
Pink Floyd's Dark Side of the Moon cover, voted the greatest classical rock album of all time, intended to portray the prism and dispersion of light into a rainbow as a certain metaphorical symbolism and a light show that was never celebrated. However, they really were not aware of the fact that this image would be used by many to help illustrate the concept of refractive index and how light chang
15min
Mysterious living monuments
Scientists think that climate change may have greater impact the largest trees in tropical forests, and the death of these giants has a major impact on the forest, but because these monumental trees are few and far between, almost nothing is known about what causes them to die.
17min
First interstellar comet may be the most pristine ever found
New observations indicate that the rogue comet 2I/Borisov, which is only the second and most recently detected interstellar visitor to our Solar System, is one of the most pristine ever observed. Astronomers suspect that the comet most likely never passed close to a star, making it an undisturbed relic of the cloud of gas and dust it formed from.
21min
Scientists Engineer Synthetic Bacteria That Multiplies Like the Real Thing
FrankenBacteria The first-ever bacteria with a genetic code engineered entirely from scratch in a lab is now growing, splitting, and multiplying just like any unicellular organism found in nature. National Institute of Standards and Technology scientists (NIST) first developed the bacteria JCVI back in 2010, according to a press release on the project. Since then, it's been a matter of improving
25min
Associations between adolescent cannabis use and young-adult functioning in three longitudinal twin studies [Psychological and Cognitive Sciences]
Observational studies have linked cannabis use to an array of negative outcomes, including psychiatric symptoms, cognitive impairment, and educational and occupational underachievement. These associations are particularly strong when cannabis use occurs in adolescence. Nevertheless, causality remains unclear. The purpose of the present study was thus to examine associations between prospectively..
34min
Upgraded CRISPR/Cas9 tools for tissue-specific mutagenesis in Drosophila [Genetics]
CRISPR/Cas9 has emerged as a powerful technology for tissue-specific mutagenesis. However, tissue-specific CRISPR/Cas9 tools currently available in Drosophila remain deficient in three significant ways. First, many existing gRNAs are inefficient, such that further improvements of gRNA expression constructs are needed for more efficient and predictable mutagenesis in both somatic and…
34min
Molecular mechanism of abnormally large nonsoftening deformation in a tough hydrogel [Applied Physical Sciences]
Tough soft materials usually show strain softening and inelastic deformation. Here, we study the molecular mechanism of abnormally large nonsoftening, quasi-linear but inelastic deformation in tough hydrogels made of hyperconnective physical network and linear polymers as molecular glues to the network. The interplay of hyperconnectivity of network and effective load…
34min
A limited role of NKCC1 in telencephalic glutamatergic neurons for developing hippocampal network dynamics and behavior [Neuroscience]
NKCC1 is the primary transporter mediating chloride uptake in immature principal neurons, but its role in the development of in vivo network dynamics and cognitive abilities remains unknown. Here, we address the function of NKCC1 in developing mice using electrophysiological, optical, and behavioral approaches. We report that NKCC1 deletion from…
34min
Mapping temperature-dependent conformational change in the voltage-sensing domain of an engineered heat-activated K+ channel [Biophysics and Computational Biology]
Temperature-dependent regulation of ion channel activity is critical for a variety of physiological processes ranging from immune response to perception of noxious stimuli. Our understanding of the structural mechanisms that underlie temperature sensing remains limited, in part due to the difficulty of combining high-resolution structural analysis with temperature stimulus. Here,…
34min
Interplays of electron and nuclear motions along CO dissociation trajectory in myoglobin revealed by ultrafast X-rays and quantum dynamics calculations [Biophysics and Computational Biology]
Ultrafast structural dynamics with different spatial and temporal scales were investigated during photodissociation of carbon monoxide (CO) from iron(II)–heme in bovine myoglobin during the first 3 ps following laser excitation. We used simultaneous X-ray transient absorption (XTA) spectroscopy and X-ray transient solution scattering (XSS) at an X-ray free electron laser…
34min
ZYP1 is required for obligate cross-over formation and cross-over interference in Arabidopsis [Genetics]
The synaptonemal complex is a tripartite proteinaceous ultrastructure that forms between homologous chromosomes during prophase I of meiosis in the majority of eukaryotes. It is characterized by the coordinated installation of transverse filament proteins between two lateral elements and is required for wild-type levels of crossing over and meiotic progression….
34min
miR-218-2 regulates cognitive functions in the hippocampus through complement component 3-dependent modulation of synaptic vesicle release [Neuroscience]
microRNA-218 (miR-218) has been linked to several cognition related neurodegenerative and neuropsychiatric disorders. However, whether miR-218 plays a direct role in cognitive functions remains unknown. Here, using the miR-218 knockout (KO) mouse model and the sponge/overexpression approaches, we showed that miR-218-2 but not miR-218-1 could bidirectionally regulate the contextual and…
34min
Fluid-like elastic response of superionic NH3 in Uranus and Neptune [Earth, Atmospheric, and Planetary Sciences]
Nondipolar magnetic fields exhibited at Uranus and Neptune may be derived from a unique geometry of their icy mantle with a thin convective layer on top of a stratified nonconvective layer. The presence of superionic H2O and NH3 has been thought as an explanation to stabilize such nonconvective regions. However,…
34min
Invariant plastic deformation mechanism in paramagnetic nickel-iron alloys [Engineering]
The Invar anomaly is one of the most fascinating phenomena observed in magnetically ordered materials. Invariant thermal expansion and elastic properties have attracted substantial scientific attention and led to important technological solutions. By studying planar faults in the high-temperature magnetically disordered state of Ni1−cFec, here we disclose a completely different…
34min
The crystal structure of a 250-kDa heterotetrameric particle explains inhibition of sheddase meprin {beta} by endogenous fetuin-B [Biochemistry]
Meprin β (Mβ) is a multidomain type-I membrane metallopeptidase that sheds membrane-anchored substrates, releasing their soluble forms. Fetuin-B (FB) is its only known endogenous protein inhibitor. Herein, we analyzed the interaction between the ectodomain of Mβ (MβΔC) and FB, which stabilizes the enzyme and inhibits it with subnanomolar affinity. The…
34min
The myosin II coiled-coil domain atomic structure in its native environment [Biophysics and Computational Biology]
The atomic structure of the complete myosin tail within thick filaments isolated from Lethocerus indicus flight muscle is described and compared to crystal structures of recombinant, human cardiac myosin tail segments. Overall, the agreement is good with three exceptions: the proximal S2, in which the filament has heads attached but…
34min
Tuning interactions between spins in a superconductor [Applied Physical Sciences]
Novel many-body and topological electronic phases can be created in assemblies of interacting spins coupled to a superconductor, such as one-dimensional topological superconductors with Majorana zero modes (MZMs) at their ends. Understanding and controlling interactions between spins and the emergent band structure of the in-gap Yu–Shiba–Rusinov (YSR) states they induce…
34min
Substrate discrimination and quality control require each catalytic activity of TRAMP and the nuclear RNA exosome [Biochemistry]
Quality control requires discrimination between functional and aberrant species to selectively target aberrant substrates for destruction. Nuclear RNA quality control in Saccharomyces cerevisiae includes the TRAMP complex that marks RNA for decay via polyadenylation followed by helicase-dependent 3′ to 5′ degradation by the RNA exosome. Using reconstitution biochemistry, we show…
34min
Potent neutralization of Rift Valley fever virus by human monoclonal antibodies through fusion inhibition [Immunology and Inflammation]
Rift Valley fever virus (RVFV), an emerging arboviral and zoonotic bunyavirus, causes severe disease in livestock and humans. Here, we report the isolation of a panel of monoclonal antibodies (mAbs) from the B cells of immune individuals following natural infection in Kenya or immunization with MP-12 vaccine. The B cell…
34min
Use of NAD tagSeq II to identify growth phase-dependent alterations in E. coli RNA NAD+ capping [Genetics]
Recent findings regarding nicotinamide adenine dinucleotide (NAD+)-capped RNAs (NAD-RNAs) indicate that prokaryotes and eukaryotes employ noncanonical RNA capping to regulate gene expression. Two methods for transcriptome-wide analysis of NAD-RNAs, NAD captureSeq and NAD tagSeq, are based on copper-catalyzed azide-alkyne cycloaddition (CuAAC) click chemistry to label NAD-RNAs. However, copper ions
34min
Turn-on mode diarylethenes for bioconjugation and fluorescence microscopy of cellular structures [Chemistry]
The use of photoswitchable fluorescent diarylethenes (fDAEs) as protein labels in fluorescence microscopy and nanoscopy has been limited by labeling inhomogeneity and the need for ultraviolet light for fluorescence activation (on-switching). To overcome these drawbacks, we prepared "turn-on mode" fDAEs featuring thienyl substituents, multiple polar residues, and a reactive maleimide…
34min
Modeling DNA trapping of anticancer therapeutic targets using missense mutations identifies dominant synthetic lethal interactions [Genetics]
Genetic screens can identify synthetic lethal (SL) interactions and uncover potential anticancer therapeutic targets. However, most SL screens have utilized knockout or knockdown approaches that do not accurately mimic chemical inhibition of a target protein. Here, we test whether missense mutations can be utilized as a model for a type…
36min
Researchers develop tool to simplify diagnoses for children facing medical complexities
Brenna Morse, a UMass Lowell graduate and current nurse of children with complex conditions who has been a faculty member in the Solomont School of Nursing since 2015, and a team of researchers from Boston Children's Hospital have developed a method through which health-care providers can more readily identify the medical issue being experienced by a child who cannot communicate it on their own.
54min
Bespoke neuroblastoma therapy weaponizes cell metabolism
Preclinical research from VCU Massey Cancer Center published recently in the Proceedings of the National Academy of Sciences shows that the combination of two existing drugs can exploit the metabolic "hunger" of a particularly aggressive type of neuroblastoma to kill cancer cells without inflicting too much collateral damage to healthy tissue.
1h
This Solar Charger Is Perfect for All Your Outdoor Adventures
There's nothing more annoying than your phone dying at an inopportune time. However, when you're at work, or running errands, or working out at the gym, a dead phone battery is really just an inconvenience. And at least you have a few options to deal with it. You might be able to find an outlet and charge it for a few minutes, or maybe you can charge while you drive from the grocery store to the
1h
Water splitting for solar energy conversion
In order to enable large-scale hydrogen production using solar energy, particulate photocatalysts are being researched as a simple and cost-effective solution to splitting water into hydrogen and oxygen. It is necessary to develop a photocatalyst that can efficiently use visible light, which accounts for a large part of solar energy, in the water decomposition reaction. Barium tantalum oxynitride
1h
Graphene made from tires makes concrete stronger
Researchers have optimized a process to convert waste from rubber tires into graphene that can strengthen concrete. The environmental benefits of adding graphene to concrete are clear, says chemist James Tour. " Concrete is the most-produced material in the world, and simply making it produces as much as 9% of the world's carbon dioxide emissions," says Tour, professor of computer science and of
1h
New AI-based versatile software for tracking many cells in 3D microscope videos
The first deep-learning software was developed as a versatile tool for tracking cells and extracting their signals from ~100 cells in a moving worm brain, in a zebrafish heart, and ~1,000 cultured cancer cells in 3D microscope videos. The method demonstrates significant improvements in tracking capabilities on various metrics including the possible number of tracked objects, robustness, and comput
1h
In the deep sea, the last ice age is not yet over
Gas hydrates are a solid compound of gases and water that have an ice-like structure at low temperatures and high pressures. Compounds of methane and water, so-called methane hydrates, are found especially at many ocean margins—also in the Black Sea. In addition to a possible use as an energy source, methane hydrate deposits are being investigated for their stability, as they can dissolve with cha
1h
Environmental antimicrobial resistance driven by poorly managed urban wastewater
Researchers from Newcastle University, UK, working with colleagues at King Mongkut's University of Technology Thonburi (KMUTT) in Thailand and the Institute of Urban Environment of the Chinese Academy of Sciences, analyzed samples of water and sediment taken from aquaculture ponds and nearby canals at five locations in central Thailand's coastal region.
1h
Study suggests supporting Indonesian women in conservation supports biodiversity
In a new study published in Conservation Science and Practice, researchers at the University of Maryland (UMD) partnered with Indonesian experts to explore the motivations and challenges of women pursuing a career in conservation sciences in Indonesia. Given that Indonesia is one of the most biodiverse countries on the planet but is simultaneously experiencing extreme rates of deforestation, it is
1h
Social media addiction linked to cyberbullying
New research suggests that these increased hours spent online may be associated with cyberbullying behaviors. According to a study by the University of Georgia, higher social media addiction scores, more hours spent online, and identifying as male significantly predicted cyberbullying perpetration in adolescents.
1h
Scientists develop ultra-thin terahertz source
Physicists from the University of Sussex have developed an extremely thin, large-area semiconductor surface source of terahertz, composed of just a few atomic layers and compatible with existing electronic platforms.
1h
How to talk to people about climate change
As our planet warms, seas rise and catastrophic weather events become more frequent, action on climate change has never been more important. But how do you convince people who still don't believe that humans contribute to the warming climate?
1h
Discovery of a mechanism for making superconductors more resistant to magnetic fields
Superconductivity is known to be easily destroyed by strong magnetic fields. NIMS, Osaka University and Hokkaido University have jointly discovered that a superconductor with atomic-scale thickness can retain its superconductivity even when a strong magnetic field is applied to it. The team has also identified a new mechanism behind this phenomenon. These results may facilitate the development of
1h
Blood Clots and the AZ Vaccine, Revisited
Once again, what's going on with vascular events and the AZ/Oxford vaccine? I last wrote about this situation a couple of weeks ago, and it's taken some real turns since then. At that point several EU countries had suspended dosing, but over the next week several began administering the vaccine again after the European Medicines Agency recommended it, in some cases with advisories about which age
1h
Vaccin mot covid-19 – samlade artiklar
Vaccineringen mot covid-19 är i full gång. Här har vi samlat alla artiklar från Forskning.se om vaccinationer i allmänhet och vaccin mot corona i synnerhet. Vaccineringen mot covid-19 har lett till ett ökat intresse för vacciner i allmänhet. Vad händer i kroppen när man vaccineras? Vad innehåller vaccin mot corona – mer än sin verksamma substans? Hur skulle världen ha sett ut om inte vacciner fan
1h
UMD study suggests supporting Indonesian women in conservation supports biodiversity
Researchers at the University of Maryland (UMD) partnered with Indonesian experts to explore the motivations and challenges of Indonesian women pursuing a career in conservation sciences. Indonesia is one of the most biodiverse countries on the planet but is simultaneously experiencing extreme rates of deforestation. With more diverse voices representing global conservation, the country and others
1h
Land-based learning reconnects Indigenous youth to their cultures, says Elizabeth Fast
Elizabeth Fast, an associate professor of applied human sciences in the Faculty of Arts and Science, wanted to help Indigenous youth reconnect with their cultures in safe and accessible ways. Along with a youth advisory group composed of Indigenous youth (some of whom are also students), she has been organizing a series of land-based learning retreats revolving around Indigenous traditions and cer
1h
T cells recognize recent SARS-CoV-2 variants
When variants of SARS-CoV-2 emerged, concern arose that they might elude protective immune responses generated by prior infection or vaccination, potentially making re-infection more likely or vaccination less effective. NIAID researchers and colleagues analyzed blood cell samples from 30 people who had contracted and recovered from COVID-19 prior to the emergence of virus variants. They found tha
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In fish, parents' stressful experiences influence offspring behavior via epigenetic changes
Parents who are exposed to predators pass on information about risky environments to their offspring through changes in gene expression—but how that information affects offspring differs depending on the sex of the parent. My colleagues and I showed this using sticklebacks—a small species of freshwater fish whose brightly colored males care for developing eggs—in a series of papers recently publis
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Show us your best stargazing photos
Whether you are a seasoned astronomer or new to stargazing, we'd like to see your photos from the last few weeks Have you taken a recent photograph of the cosmos that you're particularly proud of? Whether you are a seasoned astronomer or new to stargazing, we would like to hear from you. Continue reading…
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COVID-19 pandemic has led to more advanced-stage cancer diagnoses, physician survey finds
Physician leaders of radiation therapy clinics say that new patients are arriving for treatment with more advanced disease than before the COVID-19 pandemic, according to a new survey from the American Society for Radiation Oncology (ASTRO). The national survey fielded Jan. 15-Feb. 7 also found that treatment postponements and deferrals have largely subsided and that clinics continue to use a vari
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Shining, colored LED lighting on microalgae for next-generation biofuel
As biofuels continue to present challenges, microalgae are gaining momentum as a biofuel energy crop. In the Journal of Renewable and Sustainable Energy, researchers show how a combination of monochromatic red and blue LED illumination on one type of microalga can enhance its growth and increase the biosynthesis of critical components, such as lipids, for microalgae feedstock development. The rese
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Cervical cancer testing tech could replace pap smears, save lives
Emerging technologies can screen for cervical cancer better than Pap smears and, if widely used, could save lives in areas where access to health care may be limited. In Biophysics Reviews, scientists at Massachusetts General Hospital write advances in nanotechnology and computer learning are among the technologies helping develop HPV screening that take the guesswork out of the precancer tests. T
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Selfie culture: What your choice of camera angle says about you
Over the past decade, selfies have become a mainstay of popular culture. If the #selfie hashtag first appeared in 2004, it was the release of the iPhone 4 in 2010 that saw the pictures go viral. Three years later, the Oxford English Dictionary crowned "selfie" word of the year.
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The seeds of change helping African farmers grow out of poverty | Andrew Youn
Farmers stand at the center of the world, says Andrew Youn, cofounder of One Acre Fund, an agricultural organization that's empowering sub-Saharan farm families with the loans, seeds, fertilizer and training needed to increase crop yields and end hunger. Meet Therese Niyonsaba, a Rwandan farmer who shares how the program helped her family prosper, and learn more about One Acre Fund's goal to lead
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Expert: 3 things could ease COVID-19 spread in prisons
Since the start of the pandemic, there have been more than 492,000 documented cases of COVID-19 among inmates and staff in US prisons, jails, and detention centers, according to the COVID Prison Project. That's nearly as many cases as in the entire state of Minnesota. Further, there have been more than 2,500 deaths due to the coronavirus. As high as they are, these numbers are likely an undercoun
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What happens underground during hydraulic fracturing
A research team from Ruhr-Universität Bochum (RUB) and McGill University in Montreal is investigating what exactly happens underground when the earth in western Canada shakes as a result of hydraulic fracturing activities. The team, headed by Bochum-based Professor Rebecca Harrington, wants to fundamentally understand how earthquakes occur—whether human induced or natural. "The hydraulic fracturin
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Using holographic endoscopes to observe distant objects
Scientists are developing tools to observe the biological machinery in in vivo animal models to be able to understand and better treat severe brain diseases like Alzheimer's disease and many other conditions. Holographic endoscopes attracted researchers' interest because of their potential to conduct minimally invasive observations inside the human body.
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The egg in the X-ray beam
Scientists have been using DESY's X-ray source PETRA III to analyse the structural changes that take place in an egg when you cook it. The work reveals how the proteins in the white of a chicken egg unfold and cross-link with each other. The method can be of interest to the food industry as well as to the broad field of protein research, as the groups report in the journal Physical Review Letters.
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Clever trick enables 20 times faster imaging with electron microscopy
Researchers at Delft University of Technology (TU Delft) have expanded upon a clever trick and increased the speed of electron microscope imaging by a factor of 20. A simple adjustment is all that is needed: applying a voltage to the specimen holder. Through this simple intervention, a specimen that would normally take an electron microscope a week to image can now be inspected in a single night o
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Groundwater discharge affects water quality in coastal waters
Water quality management in the ocean often targets visible pollution sources such as sewage, rivers or ships. A new global study, led by researchers at the University of Gothenburg, reveals that invisible groundwater discharges may be just as important driving nitrogen into coastal waters.
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Helping childhood-onset lupus patients stay healthy as adults
DALLAS – March 30, 2021 – UT Southwestern researchers have identified factors that put patients with childhood-onset lupus at elevated risk for poor outcomes, such as end-stage renal disease or death, as they transition from pediatric to adult health care. The findings, published online in Seminars in Arthritis and Rheumatism, emphasize the precarious nature of this period and shine a spotlight on
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Teachers can use popular media to address anti-Asian bias, research shows
Recent incidents of racial discrimination and violence against Asians and Asian-Americans in the United States have prompted critical discussions about how to talk about such biases with younger age groups. New research from the University of Kansas shows using critical race media literacy, or examining how race and gender are addressed in popular culture, can be an effective way to discuss those
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Gender discrimination threatens crop yield among smallholder farmers in Africa, researchers say
A study examining bean productivity among smallholder farmers in Tanzania, has found that on average, yields are 6% lower among female than male farmers. Women are often 'invisible' in agriculture, researchers say, due to social structural barriers and national agricultural policies, which do not address discriminatory land rights; education and agricultural information and decision making, which
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New biopharmaceutical quality control method in testing
A new method for monitoring biopharmaceutical product quality was recently put to the test by The National Institute of Standards and Technology (NIST) and 28 laboratories representing the biopharmaceutical industry, instrument and software vendors, and the federal government. The results of this interlaboratory study were recently published in the Journal of the American Society for Mass Spectrom
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Cannibalistic pantry moths prove a key principle of evolution
Researchers studied cannibalism among commonly-found moths to test an evolutionary principle. The scientists concluded that moths with more sibling interaction were less selfish. The principle applies to humans and other animals. A common moth, found in pantries, could explain a crucial link between society and selfishness, according to a new study. Researchers showed that an increase in sibling
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