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A piece of space junk, so small that couldn't have been detected, hit the International Space Station. The damage was minor, but the danger of space debris is growing. Space agencies are focusing on finding a solution to ensure safe and sustainable space use.
When I was in medical school in the 1980s, a surgeon came to my clinical-medicine course to talk about how to guide patients in making decisions. He presented a scenario in which a patient with breast cancer had to decide between a lumpectomy and a mastectomy. The surgeon suggested that we cite statistics and discuss risk, but he advised us to resist answering a personal question: Tell me, doctor
Strain is a combination of UK and India variants and is said to spread quickly Coronavirus – latest updates See all our coronavirus coverage Vietnam has discovered a new Covid-19 variant which spreads quickly by air and is a combination of variants first identified in India and the UK, state media has reported. The country is struggling to deal with fresh outbreaks across more than half of its te
Amazon is being roasted for sharing a video of its "AmaZen," a phonebooth-sized box where employees can go to "focus on their mental wellbeing." In other words, one of the largest companies in the world is offering its overworked employees a, well, box to sit in to watch mindfulness videos. It's a out-of-touch move for a company that already has a poor track record of squeezing every last drop of
Three Guesses Police in the UK made a surprising miscalculation when they raided what they thought was an indoor pot farm. Instead of weed plants growing under intense lamps, the cops say they found about 100 computers dedicated to mining Bitcoin, according to CNBC . Though weed is still illegal in the UK, it still seems like a decidedly 21st-century turn to see Bitcoin farms taking the place of
Three times in the past year, American democracy has been tested. Once, and most consequentially, it emerged victorious. The subsequent two tests have not turned out as well, and that is a bleak omen for whenever the next test arrives. The first test came after last fall's election, when more Americans voted for the Democratic candidate, Joe Biden, than for any other presidential candidate in his
Cloudy days are rare in the thin, dry atmosphere of Mars. Clouds are typically found at the planet's equator in the coldest time of year, when Mars is the farthest from the Sun in its oval-shaped orbit. But one full Martian year ago—two Earth years—scientists noticed clouds forming over NASA's Curiosity rover earlier than expected.
Mayday Another day, another gigantic container ship broken down in the Suez Canal. On Friday, a ship called the Maersk Emerald experienced engine troubles near Ismailia, Egypt while it passed through the canal, Reuters reports . Thankfully, unlike when the Ever Given got stuck and totally blocked anyone else from using the canal back in March, the canal remains open and unobstructed this time aro
Exclusive: Prof Sir Tim Gowers says 'things will get bad very quickly' after June if variant spread underestimated Gowers' herd immunity document sent to Dominic Cummings See all our coronavirus coverage The Cambridge professor whose argument against a herd immunity strategy helped trigger England's first lockdown has voiced concerns about the risks of easing restrictions next month. Prof Sir Tim
According to a new detailed map of dark matter , the universe may be smoother and more spread out than theories have previously predicted, the BBC reports . The survey, which covered about a quarter of the southern hemisphere's sky, may serve to undermine Einstein's theory of general relativity and could potentially force us to alter understanding of the cosmos. "If this disparity is true then ma
Study Guide For years, US soldiers stationed at military bases in Europe armed with nuclear weapons were unknowingly sharing secret protocols and details on the bases themselves online. It turns out that the military personnel were relying on flashcard apps to study and memorize the details of the nuclear weapon systems without realizing that the flashcards of highly confidential information woul
The glass cliff: an experience of taking on a leadership role only to find that your chances of success have been limited before you've even begun. Equality activist Sophie Williams explores the research-backed reasons behind this workplace phenomenon and how it overwhelmingly affects underrepresented groups, despite a facade of progress and inclusion. Learn more about the biases and behaviors tha
North Star NASA is launching a bizarre satellite that will allow anyone to trigger a blinding flash of light in space that will be visible from the ground with the naked eye. The toaster-sized CubeSat, named LightCube, will launch sometime between 2022 and 2025, according to a NASA press release . The satellite, which was designed by the startup Vega Space Systems and Arizona State University stu
Two weeks ago, for the first time in a year, I intentionally walked out of my front door without a mask. I didn't even have one in my pocket. I have been vaccinated and was planning to be outdoors only, and so I was certain that going unmasked posed no risk to anyone. Still, the moment was eerie and profound. And not just because I had that phantom sense of having left the house without my keys,
Both sides in the 'natural versus manmade' debate remain deadlocked as the search for the source of Sars-CoV-2 goes on Joe Biden wants to know if the coronavirus pandemic originated in a laboratory. On Thursday, the president ordered US intelligence agencies to "redouble" their efforts to find exactly when and how the virus jumped into humans, and the two scenarios he suggested were an infected a
The Cynics were an ancient Greek school who believed that society suppressed, corrupted, and buried the human spirit. Diogenes of Sinope was the best known Cynic, and he resorted to some incredible shock tactics to jolt people from their societal stupor. Today, we're swamped and overwhelmed by the sheer scale of everything, and there are lessons to be found in Cynicism. Have you ever wasted an ho
More than 4300 years ago, people living in what is now Syria built an earthen monument filled with human remains, which were seemingly grouped into foot soldiers and charioteers. It was flooded in 1999 but now new details have emerged
This image shows the spiral galaxy NGC 5037, in the constellation of Virgo. First documented by William Herschel in 1785, the galaxy lies about 150 million light-years away from Earth. Despite this distance, we can see the delicate structures of gas and dust within the galaxy in extraordinary detail. This detail is possible using Hubble's Wide Field Camera 3 (WFC3), whose combined exposures create
Anyone who's not a morning person knows how patently wrong the 9-to-5 schedule of the world can feel. After all, the early bird gets the worm , and the Snooze button (a least to us non-morning people) is less a simple extension of sleep, and more an opioid-like drip of shelter for five more minutes from the hellish break of day. So we'll take all the motivation we can get — like this new finding,
As part of preparing for an experiment aboard the International Space Station, researchers explored new ways to culture living heart cells for microgravity research. They found that cryopreservation, a process of storing cells at -80°C, makes it easier to transport these cells to the orbiting lab, providing more flexibility in launch and operations schedules. The process could benefit other biolog
Chilling Report Senator Bernie Sanders like his hotel rooms cold. Really cold. According to excerpts of a new book detailing the 2020 Democratic presidential candidates by The Atlantic staff writer Edward-Isaac Dovere, Sanders preferred ultra-low temperatures of just 60 degrees Fahrenheit — even if that required aides to keep windows open for some time in the middle of winter. In addition to blas
Lithium appears essential to brain activity, but how it works remains a mystery. A team of researchers analyzed where in the brain lithium tends to accumulate in two healthy controls and one suicide victim. The healthy controls had more lithium in their white matter than gray matter. Lithium is known to students of chemistry as the lightest solid element, to electronics enthusiasts as a fine mate
Protons—subatomic particles with a positive electric charge—are one of the first particles to have formed after the universe began and are a constituent of every atom in existence today. The movement of protons plays a key role in energy conversion processes, such as photosynthesis and respiration, in biological systems. In addition, proton conduction is an important factor for hydrogen fuel cells
Singapore University of Technology and Design (SUTD) researchers have uncovered how the environment can impact highly sensitive quantum behaviors like localisation. Their findings, published in Chaos, could lead to future innovations in the design of superconducting materials and quantum devices, including super precise sensors.
Much of human invention and innovation has been the result of our discovery and replication of natural phenomena, from birds in flight to whales that dive deep into the ocean. For the first time, researchers have captured at the nanometer level the gliding machinery of the bacterium Mycoplasma mobile. Their findings were published in mBio. It illuminates the origin and operating principle of motil
Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox. Memorial Day weekend typically serves up a cocktail of sun and fruit, burgers and fun, giving Americans their first taste of summer. This year's celebrations may bring extra relief as the country
Heavenly Vessel Takes Off China has successfully launched a resupply craft to its orbiting space station module — marking another step forward to building a formidable rival for the International Space Station (ISS). The Tianzhou-2, or "Heavenly Vessel," took off from the Wenchang Space Launch Center in Hainan, China on Saturday morning, according to Reuters . Its goal is to autonomously dock its
Curretly there are some 190 Million people worldwide without a job. At the same time population is expected to increase from 8 Billion next year to 10 Billion in 2055. At the same time automation is and will destroy Millions of Jobs in the coming decades because there is no where else for all those people to go. When agriculture required only 5% of all people instead of 90% – people went into man
I samband med årsmötet för Vetenskap och Folkbildning delades priset för Årets folkbildare 2020 ut till pristagarna Åsa Wikforss och Christer Sturmark. Prisutdelningen skedde på Van Der Nootska Palatset i … Continued Inlägget dök först upp på Vetenskap och Folkbildning .
Before we present this week's Weekend Reads, a question: Do you enjoy our weekly roundup? If so, we could really use your help. Would you consider a tax-deductible donation to support Weekend Reads, and our daily work? Thanks in advance. The week at Retraction Watch featured: 'Regrettably it took too long to investigate and retract this … Continue reading
This article was originally published on our sister site, Freethink. Freethink has partnered with the Build for Tomorrow podcast, to go inside new episodes each month. Subscribe here to learn more about the crazy, curious things from history that shaped us, and how we can shape the future. Jason Feifer, Entrepreneur Magazine Editor-in-Chief and host of the Build for Tomorrow podcast, has a fun ho
You can only pick up so much going on around you with your smartphone . It might seem like a magical device that can do practically anything, but without a FLIR ONE Pro-Grade Thermal Camera there's an entire world of thermal imaging that's escaping your naked eye. The FLIR ONE Pro is the top of the FLIR line, and will turn your smartphone into an advanced thermal camera worthy of professional-gra
PLUS. Modsat filosoffen Søren Kierkegaard er vi mange, der begejstres over den store interesse for naturvidenskab, der prægede midten af 1800-tallet. Og nu har vi fået nye værker fra den tid at dykke ned i.
Memorial Day is almost like the unofficial start of summer. The three-day weekend gives us time to unwind, catch up with loved ones, or simply relax. To celebrate, we have a bunch of Memorial Day deals to help you get the most out of the outdoor season. Yet you'll need to act fast, as these deals end June 2nd! Firepod: Portable Multi-Functional Pizza Oven The Firepod, pictured above, is a modular
Cynthia A. Stuenkel, MD, clinical professor of medicine at University of California San Diego School of Medicine, and JoAnn E. Manson, MD, DrPH, professor of epidemiology at Harvard T.H. Chan School Of Public Health, review in a perspective article publishing the New England Journal of Medicine .
We recently reviewed 437 studies of narcissism and aggression involving a total of over 123,000 participants and found narcissism is related to a 21% increase in aggression and an 18% increase in violence . Narcissism is defined as " entitled self-importance ." The term narcissism comes from the mythical Greek character Narcissus , who fell in love with his own image reflected in still water. Agg
As the US and Europe approve plans to immunise teenagers, scientists in Britain advise delay Launching a programme of Covid-19 immunisations for children should be considered only in special circumstances, leading health experts have warned. They say UK medical authorities, who are currently studying how vaccines for adolescents might be administered, should move with great care over the implemen
George Floyd's murder last Memorial Day persuaded a lot of people in sports to use their public profile to fight racism in America. So it was fitting that the NBA, its players' union, and the WNBA players' union joined together Tuesday, the first anniversary of Floyd's death, to publicly challenge Congress to pass the George Floyd Justice in Policing Act. Among all of America's professional sport
Relying on caffeine to get you through the day isn't always the answer, according to a new study. The researchers assessed how effective caffeine was in counteracting the negative effects of sleep deprivation on cognition. As it turns out, caffeine can only get you so far. The study in the most recent edition of Journal of Experimental Psychology: Learning, Memory, & Cognition assessed the impact
Many Asian Americans live daily with the corrosive effects of racism and racialized violence, yet there's very little research funded on Asian American health. (Image credit: Emaz/VIEW press/Corbis via Getty Images)
Some years ago, I was given an assignment by Vanity Fair to track down war criminals and former dictators who, despite being ousted from power, hadn't yet seen justice. As I hunted down their villas on the French Riviera, one of the most beautiful stretches of coastline in the world, or in the cobbled side streets of Paris's 16th arrondissement, I was reminded, not for the first time, that after
PLUS. Sammen med Fagforeningen 3F foreslår Dansk Industri, at det politiske mål om urørt skov ikke kun skal nås ved hjælp af statsskovene. Hvis de skal stå urørte, vil vi øge træ-importen, lyder argumentet.
Mange europæiske bilfabrikker har overført den amerikanske vogns konstruktionsejendommeligheder: Styr i venstre side, gearskifte i midten, ja enkelte søger i hele udseendet at efterligne den amerikanske vogntype.
Victoria records five new cases of Covid-19 taking Melbourne outbreak to 35; UK MPs urge action to save music festivals from another 'lost summer' What is the impact of lifting restrictions in England on 21 June? See all our coronavirus coverage 10.08am BST The Philippines on Saturday said the country's workers could again go to work in Saudi Arabia , reversing a brief deployment ban after the ki
Researchers from Tokyo Metropolitan University have enhanced "super-resolution" machine learning techniques to study phase transitions. They identified key features of how large arrays of interacting "particles" behave at different temperatures by simulating tiny arrays before using a convolutional neural network to generate a good estimate of what a larger array would look like using "correlation
A landmark Dutch court ruling ordering oil company Shell to drastically cut carbon emissions, and investor votes at other oil firms to take environmental concerns more seriously could be a turning point for the industry
In the first of a new series of pandemic profiles, New Scientist talks to Hannah Ritchie, who reveals what it's like to provide presidents and the public with vital covid-19 data and what the trends suggest the virus has in store for us next
So I've been thinking alot about ai/deepfakes/gaming/music/film industries in the future and there's some things I wanted to share about how different it will be. No physical set, sets are created and animated in 3d. See Unity/Unreal engine for example to see how realistic these spaces are *currently* You can even sell these sets as NFTs to some die-hard fans if the film is successful or if it be
Hello all, We are working on a master's project in cognitive science and have conducted an online game/survey for which we need participants. The game can be challenging, as it requires patience. It only takes 7 minutes to complete, though (please don't mind that the bar may keep saying 3% – it is not the case). We hope that you will enjoy the game and are able to challenge your patience for 7 mi
In other words, are cognitive resources finite? Let's say, hypothetically, our mind is only processing 2 tasks: word retrieval and executive decision-making. If I have to dedicate cognitive resources to word retrieval, does that necessarily mean it is taking away resources from executive decision-making? submitted by /u/YourWelcomeOrMine [link] [comments]
Eric Lam, a highly-published cancer specialist, has been fired from his post at Imperial College London following a university investigation that found misconduct, Retraction Watch has learned. Lam's work has been the subject of scrutiny on PubPeer for some three years, dating back to a 2018 post pointing out suspicious images in a 2003 paper … Continue reading
Disease ecologists have published study results showing how they were able to prove, by replicating environmental conditions in the lab, that Francisella tularensis can persist for months in cold water without any nutrients and remain fully virulent. Their results provide a plausible explanation for how the deadly pathogen, which causes rabbit fever, can overwinter in the environment outside of a
Creature amalate Fri, 05/28/2021 – 18:25 Image Brood X is emerging across 15 states. Here's how to decode all that buzzing from the trees. Friday, May 28, 2021 Nala Rogers, Staff Writer https://www.insidescience.org/news/how-speak-cicada
Now that the weather is better, and you can actually go places and do things again, it's time to start catching up on all the stuff you promised yourself you'd do while you were trapped inside all winter. And whether that means tackling big home reno and landscaping projects, or finally taking the kids on that camping or fishing trip so they can detox from their screens, or even just going to the
Science and art collide in a new British exhibition which opened on Friday and hopes to raise awareness about the environmental impact of eating meat, while promising a guilt-free look at the "difficult problem".
Biologists studying Southern California bobcats found a mother and three kittens this spring in an unusual den in a cavity up in a tree in an area intensely burned by a huge 2018 wildfire west of Los Angeles, the National Park Service said.
About 36 million people have blindness including 1 million children. Additionally, 216 million people experience moderate to severe visual impairment. However, STEM (science, technology, engineering and math) education maintains a reliance on three-dimensional imagery for education. Most of this imagery is inaccessible to students with blindness. A breakthrough study by Bryan Shaw, Ph.D., professo
Nature, Published online: 28 May 2021; doi:10.1038/d41586-021-01472-3 The US National Academy of Sciences has terminated astronomer Geoffrey Marcy's membership, in light of sexual-harassment complaints. Plus, hundreds of gibberish papers lurk in the literature and a research-integrity specialist faces legal action.
The 22nd SpaceX cargo resupply mission carrying scientific research and technology demonstrations launches to the International Space Station from NASA's Kennedy Space Center in Florida no earlier than June 3. Experiments aboard include studying how water bears tolerate space, whether microgravity affects symbiotic relationships, analyzing the formation of kidney stones, and more.
A team has developed a new brain stimulation technique using focused ultrasound that is able to turn specific types of neurons in the brain on and off and precisely control motor activity without surgical device implantation.
A new study of dozens of wild fish species commonly consumed in the Peruvian Amazon says that people there could suffer major nutritional shortages if ongoing losses in fish biodiversity continue. Furthermore, the increasing use of aquaculture and other substitutes may not compensate.
Imagine that in the 2030s that the only diseases for which no cure is available are diseases we've yet to discover. (No incurable cancers, for example) Imagine hospitals become housing for homeless Imagine parking garages becoming repurposed as 275 million cars in the U S are replaced by 25 million battery powered, autonomous , driverless, on-demand cabs Imagine that we change our government to o
This sub has basically become another r/collapse with the amount doomers always dominating the conversation in the comments. Literally every single post about some fantastic discovery or accomplishment in every field is followed by "yEaH, BUt MY lIFe SuCKs!! SoCiETy sUCKs!! huMAnS ArE dOOmeD anYwAY!" I can't tell you how many conversations I've had with people who come to the comments just to arg
A breakthrough study by Bryan Shaw, Ph.D., professor of chemistry and biochemistry at Baylor University, aims to make science more accessible to people who are blind or visually impaired through small, candy-like models.
The Geological Society of America regularly publishes articles online ahead of print. For April, GSA Bulletin topics include multiple articles about the dynamics of China and Tibet; new insights into the Chicxulub impact structure; and the dynamic topography of the Cordilleran foreland basin. You can find these articles at https://bulletin.geoscienceworld.org/content/early/recent.
A team of researchers offer new insight on conversion factors of greenhouse gases into their CO2 equivalent. The publication puts forward the economic benefits of reassessing periodically conversion factors according to scenarios of global warming.
Scientists have developed a genetics toolkit that helps pave the way to a gene drive designed to stop Culex mosquitoes from spreading disease. Much less studied than other genera, Culex mosquitoes spread devastating afflictions stemming from West Nile virus, Japanese encephalitis virus and the pathogen causing avian malaria.
The 'Roof of the World' appears to have risen by up to 600 meters [1,968.5 feet], new research indicates. Tibet is referred to as the Roof of the World for good reason. With an average altitude of 4,500 meters [14,763.78 feet] above sea level and the world's two highest peaks, Mount Everest and K2, the vast Himalayan mountain range towers higher than anywhere else on Earth. But the Tibetan platea
CRISPR-Cas9 genome editing is a promising technique for clinical applications, such as the correction of disease-associated alleles in somatic cells. The use of this approach has also been discussed in the context of heritable editing of the human germ line. However, studies assessing gene correction in early human embryos report…
Genes that are primarily expressed in cochlear glia-like supporting cells (GLSs) have not been clearly associated with progressive deafness. Herein, we present a deafness locus mapped to chromosome 3p25.1 and an auditory neuropathy spectrum disorder (ANSD) gene, TMEM43, mainly expressed in GLSs. We identify p.(Arg372Ter) of TMEM43 by linkage analysis…
Natural killer (NK) cells are major antileukemic immune effectors. Leukemic blasts have a negative impact on NK cell function and promote the emergence of phenotypically and functionally impaired NK cells. In the current work, we highlight an accumulation of CD56−CD16+ unconventional NK cells in acute myeloid leukemia (AML), an aberrant…
Recent studies suggest that admixture with archaic hominins played an important role in facilitating biological adaptations to new environments. For example, interbreeding with Denisovans facilitated the adaptation to high-altitude environments on the Tibetan Plateau. Specifically, the EPAS1 gene, a transcription factor that regulates the response to hypoxia, exhibits strong signatures…
Understanding drivers of success for alien species can inform on potential future invasions. Recent conceptual advances highlight that species may achieve invasiveness via performance along at least three distinct dimensions: 1) local abundance, 2) geographic range size, and 3) habitat breadth in naturalized distributions. Associations among these dimensions and the…
Ambient light detection is important for the synchronization of the circadian clock to the external solar cycle. Light signals are sent to the suprachiasmatic nuclei (SCN), the site of the major circadian pacemaker. It has been assumed that cone photoreceptors contribute minimally to synchronization. Here, however, we find that cone…
Urgent action is needed to prevent the demise of coral reefs as the climate crisis leads to an increasingly warmer and more acidic ocean. Propagating climate change–resistant corals to restore degraded reefs is one promising strategy; however, empirical evidence is needed to determine whether stress resistance is affected by transplantation…
How small eukaryotic cells can interpret dynamic, noisy, and spatially complex chemical gradients to orient growth or movement is poorly understood. We address this question using Saccharomyces cerevisiae, where cells orient polarity up pheromone gradients during mating. Initial orientation is often incorrect, but polarity sites then move around the cortex…
We show that surface interactions can vectorially structure the three-dimensional polarization field of a ferroelectric fluid. The contact between a ferroelectric nematic liquid crystal and a surface with in-plane polarity generates a preferred in-plane orientation of the polarization field at that interface. This is a route to the formation of…
Fifty percent of diffuse large B cell lymphoma (DLBCL) cases lack cell-surface expression of the class I major histocompatibility complex (MHC-I), thus escaping recognition by cytotoxic T cells. Here we show that, across B cell lymphomas, loss of MHC-I, but not MHC-II, is preferentially restricted to DLBCL. To identify the…
The outcomes and timescales of molecular nonadiabatic dynamics are decisively impacted by the quantum coherences generated at localized molecular regions. In time-resolved X-ray diffraction imaging, these coherences create distinct signatures via inelastic photon scattering, but they are buried under much stronger background elastic features. Here, we exploit the rich dynamical…
"Life 2.0" may sound like hyperbole—suggesting a radical change in modes of existence—but that was the title of a Colloquium held at the Beckman Center in Irvine, California, in December 2019. The subtitle, "The Promise and Challenge of a CRISPR Path to a Sustainable Planet," was both more modest and…
The COVID-19 pandemic is a global threat presenting health, economic, and social challenges that continue to escalate. Metapopulation epidemic modeling studies in the susceptible–exposed–infectious–removed (SEIR) style have played important roles in informing public health policy making to mitigate the spread of COVID-19. These models typically rely on a key assumption…
A study of gene activity in the brain's hippocampus has identified marked differences between the region's anterior and posterior portions. The findings could shed light on a variety of brain disorders that involve the hippocampus and may eventually help lead to new, targeted treatments.
A team of researchers has shown that physical intervention plans that included exoskeleton-assisted walking helped people with spinal cord injury evacuate more efficiently and improved the consistency of their stool.
UC San Diego scientists have developed a genetics toolkit that helps pave the way to a gene drive designed to stop Culex mosquitoes from spreading disease. Much less studied than other genera, Culex mosquitoes spread devastating afflictions stemming from West Nile virus, Japanese encephalitis virus and the pathogen causing avian malaria.
Solar Pickup New details about Tesla's long-awaited Cybertruck have emerged through the publication of several patent applications dating back to 2020, as spotted by The Verge . The electric car company's brutalist pickup truck could come with fun options like solar panels integrated into the retractable cover for the truck bed — a sign that the pickup could still have plenty of surprises in stor
A study coordinated by Luís Graça, principal investigator at the Instituto de Medicina Molecular (iMM; Portugal) used lymph nodes, tonsils and blood, to show how the cells that control production of antibodies are formed and act. The results published now in the scientific journal Science Immunology unveiled key aspects about the regulation of antibody production, with significant importance for d
A team of multiple sclerosis (MS) experts led a pilot randomized controlled trial of robotic-exoskeleton assisted exercise rehabilitation (REAER) effects on mobility, cognition, and brain connectivity in people with substantial MS-related disability. Their results showed that REAER is likely an effective intervention, and is a promising therapy for improving the lives of those with MS.
Many species give deceptive warning calls, enabled by the high risk of ignoring them. In Siberian jays, a territorial, group-living bird, individuals give warning calls toward perched predators and mob them. However, intruding neighbors can emit these warning calls in the absence of predators to access food, but breeders often ignore these calls. Playback field experiments show that breeders flee
Fire plays a pivotal role in shaping terrestrial ecosystems and the chemical composition of the atmosphere and thus influences Earth's climate. The trend and magnitude of fire activity over the past few centuries are controversial, which hinders understanding of preindustrial to present-day aerosol radiative forcing. Here, we present evidence from records of 14 Antarctic ice cores and 1 central A
Critical physiological processes such as sleep and stress that underscore health are regulated by an intimate interplay between the endocrine and nervous systems. Here, we asked how fetal exposure to the endocrine disruptor found in common plastics, bisphenol A (BPA), causes lasting effects on adult animal behaviors. Adult mice exposed to low-dose BPA during gestation displayed notable disruption
The Los Angeles basin is located within the North America–Pacific plate boundary and contains multiple earthquake faults that threaten greater Los Angeles. Seismic attenuation tomography has the potential to provide important constraints on wave propagation in the basin and to provide supplementary information on structure in the form of the distribution of anelastic properties. On the basis of t
Naturalistic stimuli, such as movies, activate a substantial portion of the human brain, invoking a response shared across individuals. Encoding models that predict neural responses to arbitrary stimuli can be very useful for studying brain function. However, existing models focus on limited aspects of naturalistic stimuli, ignoring the dynamic interactions of modalities in this inherently contex
Sodium, in contrast to other metals, cannot intercalate in graphite, hindering the use of this cheap, abundant element in rechargeable batteries. Here, we report a nanometric graphite-like anode for Na + storage, formed by stacked graphene sheets functionalized only on one side, termed Janus graphene. The asymmetric functionalization allows reversible intercalation of Na + , as monitored by opera
For quantum-confined nanomaterials, size dispersion causes a static broadening of spectra that has been difficult to measure and invalidates all-optical methods for determining the maximum photovoltage that an excited state can generate. Using femtosecond two-dimensional (2D) spectroscopy to separate size dispersion broadening of absorption and emission spectra allows a test of single-molecule ge
As the basic unit of life, cells are compartmentalized microreactors with molecularly crowded microenvironments. The quest to understand the cell origin inspires the design of synthetic analogs to mimic their functionality and structural complexity. In this work, we integrate membraneless coacervate microdroplets, a prototype of artificial organelles, into a proteinosome to build hierarchical pro
Greenhouse gas (GHG) metrics, that is, conversion factors to evaluate the emissions of non-CO 2 GHGs on a common scale with CO 2 , serve crucial functions in the implementation of the Paris Agreement. While different metrics have been proposed, their economic cost-effectiveness has not been investigated under a range of pathways, including those substantially overshooting the temperature targets.
Although biodiversity loss adversely influences a variety of ecosystem functions, how declining wild food diversity affects nutrient supplies for people is poorly understood. Here, we analyze the impact of declining biodiversity on nutrients supplied by fish using detailed information from the Peruvian Amazon, where inland fisheries provide a critical source of nutrition for many of the region's
Most of the vascular platforms currently being studied are lab-on-a-chip types that mimic capillary networks and are applied for vascular response analysis in vitro. However, these platforms have a limitation in clearly assessing the physiological phenomena of native blood vessels compared to in vivo evaluation. Here, we developed a simply fabricable tissue-engineered vascular microphysiological
The Stern-Gerlach effect, found a century ago, has become a paradigm of quantum mechanics. Unexpectedly, until recently, there has been little evidence that the original scheme with freely propagating atoms exposed to gradients from macroscopic magnets is a fully coherent quantum process. Several theoretical studies have explained why a Stern-Gerlach interferometer is a formidable challenge. Here
Metabotropic -aminobutyric acid G protein–coupled receptors (GABA B ) represent one of the two main types of inhibitory neurotransmitter receptors in the brain. These receptors act both pre- and postsynaptically by modulating the transmission of neuronal signals and are involved in a range of neurological diseases, from alcohol addiction to epilepsy. A series of recent cryo-EM studies revealed cr
Hypothalamic tanycytes, radial glial cells that share many features with neuronal progenitors, can generate small numbers of neurons in the postnatal hypothalamus, but the identity of these neurons and the molecular mechanisms that control tanycyte-derived neurogenesis are unknown. In this study, we show that tanycyte-specific disruption of the NFI family of transcription factors ( Nfia/b/x ) rob
Highly conductive and stretchy fibers are crucial components for smart fabrics and wearable electronics. However, most of the existing fiber conductors are strain sensitive with deteriorated conductance upon stretching, and thus, a compromised strategy via introducing merely geometric distortion of conductive path is often used for stable conductance. Here, we report a coaxial wet-spinning proces
Besides its role in biological nitrogen fixation, vanadium-containing nitrogenase also reduces carbon monoxide (CO) to hydrocarbons, in analogy to the industrial Fischer-Tropsch process. The protein yields 93% of ethylene (C 2 H 4 ), implying a C–C coupling step that mandates the simultaneous binding of two CO at the active site FeV cofactor. Spectroscopic data indicated multiple CO binding event
Since the emergence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), various vaccines are being developed, with most vaccine candidates focusing on the viral spike protein. Here, we developed a previously unknown subunit vaccine comprising the receptor binding domain (RBD) of the spike protein fused with the tetanus toxoid epitope P2 (RBD-P2) and tested its efficacy in rodents and
The coronaviral spike is the dominant viral antigen and the target of neutralizing antibodies. We show that SARS-CoV-2 spike binds biliverdin and bilirubin, the tetrapyrrole products of heme metabolism, with nanomolar affinity. Using cryo–electron microscopy and x-ray crystallography, we mapped the tetrapyrrole interaction pocket to a deep cleft on the spike N-terminal domain (NTD). At physiologi
In sarcomeres, α-actinin cross-links actin filaments and anchors them to the Z-disk. FATZ (filamin-, α-actinin-, and telethonin-binding protein of the Z-disk) proteins interact with α-actinin and other core Z-disk proteins, contributing to myofibril assembly and maintenance. Here, we report the first structure and its cellular validation of α-actinin-2 in complex with a Z-disk partner, FATZ-1, wh
Handheld models help students visualize three-dimensional (3D) objects, especially students with blindness who use large 3D models to visualize imagery by hand. The mouth has finer tactile sensors than hand, which could improve visualization using microscopic models that are portable, inexpensive, and disposable. The mouth remains unused in tactile learning. Here, we created bite-size 3D models o
Older adults with cerebral palsy are more likely to have debilitating musculoskeletal conditions, but our researchers found they receive significantly less physical therapy for those ailments. The lead author says the results, while staggering, support their hypothesis that people with CP receive inequitable health care.
Nature, Published online: 28 May 2021; doi:10.1038/d41586-021-01466-1 Cosmologists have unveiled a trove of fresh data, but the measurements do not settle earlier questions about the Universe's unexpected smoothness.
A wide range of organizations—focused on social justice, religion, the arts, etc.—offer opportunities to learn about and taking action on environmental issues, a study finds. A new study in the journal Environmental Education Research identifies nearly 1,000 organizations in the San Francisco Bay area alone that create an interconnected web of these opportunities. "Many, if not most, environmenta
Climate change will make outbreaks of West Nile virus more likely in the UK within the next 20-30 years, a new study has found. A new scientific model shows the risk of the mosquito-borne pathogen spreading to the country will increase as temperatures rise.
People don't gain or lose weight because they live near a fast-food restaurant or supermarket, according to a new study. Additionally, living in a more "walkable", dense neighborhood likely only has a small impact on weight. "…when thinking about ways to curb the obesity epidemic, our study suggests there's likely no simple fix from the built environment, like putting in a playground or supermark
Developing new ultrathin metal electrodes has allowed researchers to create semitransparent perovskite solar cells that are highly efficient and can be coupled with traditional silicon cells to greatly boost the performance of both devices, said an international team of scientists. The research represents a step toward developing completely transparent solar cells.
Many seabirds in the Northern Hemisphere are struggling to breed—and in the Southern Hemisphere, they may not be far behind. These are the conclusions of a study in Science analyzing more than 50 years of breeding records for 67 seabird species worldwide. The researchers discovered that reproductive success decreased in the past half century for fish-eating seabirds north of the equator. The Nort
Corals are in trouble. All across the globe the diverse and dynamic ecosystems are taking huge hits year after year. The Great Barrier Reef has lost half of its coral since 1995. Scientists are seeing similar declines in reefs from Hawai'i to the Florida Keys and across the Indo-Pacific region.
An environment in which family members support one another and express their feelings can reduce the effects of social deprivation on cognitive ability and development among adopted children, suggests a small study. In contrast, rule-driven households where family members are in conflict may increase an adopted child's chances for cognitive, behavioral and emotional difficulties.
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In the April Insights puzzle, I tried to guide readers down a path that might be best described as "experimental mathematics." The goal was to rediscover two constants by iterating simple arithmetic procedures. Readers found that the procedures ended in a repeating cycle — either in a single number (a "cycle" of one) or in a cycle of two or more numbers. The first constant, 6174… Source
During the era of commercial whaling, fin whales were hunted so intensively that only a small percentage of the population in the Southern Hemisphere survived, and even today, marine biologists know little about the life of the world's second-largest whale.
Scientists have recorded blood oxygen levels in the hippocampus and provided experimental proof for why the area, commonly referred to as 'the brain's memory center', is vulnerable to damage and degeneration, a precursor to Alzheimer's disease.
Chemotherapy destroys stem cells, which then cannot develop into immune cells and become part of the body's defenses. There are drugs that can remedy this, but previously we did not know exactly how these drugs worked. Now, a new study details their function providing new knowledge that may improve stem cell transplantation and lead to better drug design in the future.
The population of the critically endangered Saiga antelope has more than doubled since 2019, Kazakhstan said Friday, giving conservationists fresh hope for the steppe-dwelling animal's long-term survival.
Hello, I am a graduate student and I am using Psytoolkit to create an experiment. Basically, I would like to show my participants one of the three visual stimuli groups (neutral, positive, and negative) randomly. And also, the stimuli should be randomized within the groups as well. So, I thought arrays could be good for this. But, I cannot compile and run it. There are two groups of stimuli in th
A research team has designed a simple electromechanical device that can be used for deep tissue pathology diagnosis, such as psoriasis, in an automated and non-invasive fashion. The findings will lay a foundation for future applications in the clinical evaluation of skin cancers and other dermatology diseases.
Scientists have developed a new understanding of how electrons behave in strong magnetic fields. Their results explain measurements of electric currents in three-dimensional materials that signal a quantum Hall effect – a phenomenon thus far only associated with two-dimensional metals.
The ancient burrowers of the seafloor have been getting a bum rap for years. These prehistoric dirt churners — a wide assortment of worms, trilobites, and other animals that lived in Earth's oceans hundreds of millions of years ago — are thought to have played a key role in creating the conditions needed for marine life to flourish. Their activities altered the chemical makeup of the sea itself
New research reveals more information about how proteins called phytochromes help plants sense and react to light and temperature. Plants contain several types of specialized light-sensitive proteins that measure light by changing shape upon light absorption. Chief among these are the phytochromes. Phytochromes help plants detect light direction, intensity, and duration; the time of day; whether
A new study suggests that, among men, low testosterone levels in the blood are linked to more severe COVID-19. The study contradicts widespread assumptions that higher testosterone may explain why men, on average, develop more severe COVID-19 than women do. "The groups of men who were getting sicker were known to have lower testosterone across the board." Throughout the pandemic, doctors have see
As the cleanest renewable energy, hydrogen energy has attracted special attention in recent research. Yet the commercialization of traditional proton exchange membrane fuel cells (PEMFCs), which consume hydrogen and produce electricity, is seriously restricted due to the chemical reaction of PEMFCs cathode largely reliying on expensive platinum-based catalysts.
An international archaeological study, led by researchers from the Culture and Socio-Ecological Dynamics (CaSEs) research group at Pompeu Fabra University, has advanced in the understanding and preservation of archaeological sites and in improving their analysis and surveying, thanks to the application of pXRF (portable X-ray fluorescence analysis) to anthropogenic sediments in Africa. It is a rap
Professor Yao Huajian's research group from the School of Earth and Space Sciences of the University of Science and Technology of China (USTC), in cooperation with Dr. Piero Poli from Grenoble-Alpes University of France, combined the unique resolution reflected body waves (P410P and P660P) retrieved from ambient noise interferometry with mineral physics modeling, to shed new light on transition zo
Trying to describe dark matter is like trying to describe a ghost that lives in your house. You can't see it at all, but what you can see is all the stuff it's moving around. And the only explanation is an invisible force you can't observe or measure or interact with directly. We know dark matter exists because we can observe its effects on all the stuff that's swirling around in the universe. Sc
Whether you're in the mood to burst out the door or curl up on a couch this summer, The Atlantic 's writers and editors have reading recommendations to match. Do you want to feel wonder about the universe, or be transported to another place? Maybe you're craving smart observations about life, a deep dive, or just a bit of human connection. If you're looking to embrace high drama or rediscover an
Months after recovering from mild cases of COVID-19, people still have immune cells in their body pumping out antibodies against the virus that causes COVID-19, according to a new study. Those cells could persist for a lifetime, churning out antibodies all the while. The findings in Nature , suggest that mild cases of COVID-19 leave those infected with lasting antibody protection and that repeate
Electroceramics such as capacitors are essential components in electronic devices. Intervening in their crystalline structure can change specific properties. A stable shape can be created by replacing a whole series of atoms rather than just a single one. An international team of researchers under the leadership of the TU Darmstadt has, for the first time, succeeded in inserting a dislocation into
Experts highlight four major symptoms affecting people with progressive MS that should be the focus of new research: fatigue, mobility and upper extremity impairment, pain, and cognitive impairment. "We have ample evidence from research in other clinical areas that rehabilitation can improve quality of life and find support from diverse payers and stakeholders," noted Dr. John DeLuca. "Our aim is
A new article examines how the depiction of a "final girl's" struggle after survival in a horror film – how she has been vilified and dismissed, but ultimately proven right – might offer trauma survivors the chance to see a bit of themselves on the big screen.
Platinum chemotherapy fails for triple-negative breast cancer, basal-like subtype. The first racially diverse trial to look at severe joint pain from aromatase inhibitors shows more postmenopausal Black and Asian women with early breast cancer developed this common/significant syndrome. Less intense therapy for HPV-associated throat cancer shows outstanding three-year survival and quality of life.
Many healthcare providers and policy makers fear that increased pressure to please patients — and ensure high satisfaction ratings as a result — could lead to overuse of low-value care that doesn't provide any clinical benefit while unnecessarily ratcheting up medical bills. But new research from the University of Chicago and Harvard Medical School may alleviate some of those concerns.
What The Study Did: Researchers estimated the extent Medicare Part B medical services would have been subject to prior authorization under private insurance coverage policies and calculated the associated spending.
What The Study Did: This survey study examined the associations of having an incarcerated immediate or extended family member with perceived well-being and change in projected life expectancy among adults in the United States.
What The Study Did: Study results suggest that reinfections are rare events and that patients who have recovered from COVID-19 have a lower risk of reinfection. However, the observation ended before SARS-CoV-2 variants began to spread, and it is unknown how well natural immunity to the wild-type virus will protect against variants.
What The Study Did: Rates of antispike antibody response to a messenger RNA SARS-CoV-2 vaccine in Israeli patients with cancer who are undergoing systemic treatment compared with healthy controls were evaluated in this study.
A Japanese anesthesiologist has been found guilty of fabricating data and other misconduct in 142 articles and other publications, leading to his termination and the sanction of several of his co-authors. Showa University says its investigation into Hironobu Ueshima, the existence of which we first reported on last June, found that the prolific researcher had … Continue reading
A new report published by The Wall Street Journal on Sunday has fueled suspicions that SARS-CoV-2, the virus that causes Covid-19, may have originated from within China's Wuhan Institute for Virology, a high-security facility where researchers study coronaviruses, among other pathogens.
A significant article was published in the journal Science on 14 May 2021 by 40 top scientists calling on the World Health Organisation to reinforce requirements for ventilation systems of buildings, in order to prevent the spread of corona, influenza and other airborne pathogens in public indoor spaces.
EPFL researchers have developed a device that can continuously measure the blood concentration of propofol – one of the main compounds used in anesthetics – in patients as they are being operated on. That will help anesthesiologists deliver more personalized doses.
There is a strong link between hormonal contraceptives and breast cancer risk. The main culprit are progestins, synthetic mimics of the pregnancy hormone progesterone that stimulate cell growth in the breast. An EPFL study into the distinct biological effects of different progestins on the breast shows that contraceptive-related breast cancer can be prevented by more informed choices about the com
The ethical practices, dilemmas and challenges of classroom research involving child language learners are the focus of a new book edited by Dr. Annamaria Pinter of the University of Warwick's Department of Applied Linguistics and Dr. Harry Kuchah of the University of Leeds.
To reach net zero emissions by 2050, global emissions must be cut faster and deeper than the world has yet managed. But even then, some hard-to-treat sources of pollution—in aviation, agriculture and cement making—may linger for longer than we would like. It will take time for clean alternatives to arrive and replace them.
The countries around the Baltic Sea do not respect their binding international agreement to reduce agricultural pollution of the marine environment. This is despite farming activities being the single most important source of nutrient pollution to the Baltic Sea.
Metal-organic framework compounds (MOFs) consist of inorganic and organic groups and are characterized by a large number of pores into which other molecules can be incorporated. MOFs are therefore interesting for many applications, for example for the storage of gasses, but also for substance separation, sensor technology or catalysis. Some of these MOF structures react to different guest molecule
In bear country, it's normal to find bruins munching down on temptations left out by humans—from a backyard apple tree to leftovers in the trash bin—but these encounters can cause trouble for humans and bears alike. One method to reduce human-bear conflicts is to secure attractants like garbage and livestock feed.
When San Francisco voters overwhelmingly approved a ballot measure banning the sale of flavored tobacco products in 2018, public health advocates celebrated. After all, tobacco use poses a significant threat to public health and health equity, and flavors are particularly attractive to youth.
Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox. The lab-leak theory, once dismissed as conspiracism, is entering the mainstream. More scientists and journalists are now willing to admit that it's plausible. Even President Joe Biden is calling f
Demand for 5G smartphones is reaching an all-time high In 2021, consumers and institutions alike are fast-tracking a digital revolution in an unprecedented era of social distancing and remote work—a trend that may continue long after the pandemic subsides. The time is ripe for many commercialized products and services to ride the wave of unparalleled high-speed connectivity and minimal latency en
Updated at 8:24 p.m. ET on May 28, 2021. Each installment of " The Friendship Files " features a conversation between The Atlantic 's Julie Beck and two or more friends, exploring the history and significance of their relationship. This week she talks with the founder, a former editor, and several former student journalists of L.A. Youth , an independent nonprofit newspaper for and by teens in th
The work was conducted under the auspices of the Russian Foundation for Basic Research and organizations-participants of the BRICS framework program in science, technology and innovation; the grant title is "Nanosized peptide-based biomaterials for photodynamic diagnostics of tumors".
During the era of commercial whaling, fin whales were hunted so intensively that only a small percentage of the population in the Southern Hemisphere survived, and even today, marine biologists know little about the life of the world's second-largest whale.
A new technique could enable the production of robust, high-performance membranes to harness sea water as an abundant source of renewable energy, researchers report. Blue energy, also known as osmotic energy, capitalizes on the energy naturally released when two solutions of different salinities mix—conditions that occur in countless locations around the world where fresh and salt water meet. The
A research group led by Takashi Saito, of the Ehime University Graduate School of Medicine, developed a 2-photon excitation light-sheet fluorescence microscope which (1) lowers phototoxicity, (2) extends the field of view, and (3) heightens spatial resolution. This microscope, when used for the observation of medaka fish, made it possible to observe the whole body of the embryo (an extended field
Genetic disorders compromise the welfare of farm animals and have impacts on the production and management of these animals. One such way of reducing this risk is to map the genes responsible for different syndromes. However, until now, this has been a reactive process, with farmers alerting vets or breeding companies once a genetic disorder is suspected, and researchers then aiming to confirm the
Researchers at Jaipur National University have examined how companies have been affected by COVID-19 lockdown in terms of their programs of corporate social responsibility. Manish Kumar Dwivedi and Vineet Kumar writing in the International Journal of Indian Culture and Business Management looked at this issue from the psychological, social, cultural, and economic perspectives.
Africa is often referred to as the cradle of humankind, the birthplace of our species, Homo sapiens . There is evidence of the development of early symbolic behaviors such as pigment use and perforated shell ornaments in Africa, but so far most of what we know about the development of complex social behaviors such as burial and mourning has come from Eurasia. However, the remains of a child burie
Researchers have combined two or three types of nanoparticles to produce new materials with structures known as superlattices. In some instances, the structures display fundamental new properties such as superfluorescence. The researchers' discovery is reported in the journal Nature and featured on the current issue's cover.
Engineering researchers from Aarhus University have developed electronic support stockings and tested them on 16 bed-ridden Covid-19 patients at Copenhagen University Hospitals, Bispebjerg and Herlev. The experiments show that the stockings counteract a significant loss of muscle mass.
The basis for this new take on the classification was laid in 1985, when John Long attributed a fossil tooth plate to a new species, Edaphodon eyrensis. The species was named after Lake Eyre, near which the tooth was found in 1978.
Developing a novel and convenient method to prepare dual emission nitrogen-doped carbon dots, which can be used as a ratiometric fluorescent probe for detecting dopamine based on the variation of the ratio (I595nm/I435nm).
BioNyt Videnskabens Verden (www.bionyt.dk) er Danmarks ældste populærvidenskabelige tidsskrift for naturvidenskab. Det er det eneste blad af sin art i Danmark, som er helliget international forskning inden for livsvidenskaberne.
Bladet bringer aktuelle, spændende forskningsnyheder inden for biologi, medicin og andre naturvidenskabelige områder som f.eks. klimaændringer, nanoteknologi, partikelfysik, astronomi, seksualitet, biologiske våben, ecstasy, evolutionsbiologi, kloning, fedme, søvnforskning, muligheden for liv på mars, influenzaepidemier, livets opståen osv.
Artiklerne roses for at gøre vanskeligt stof forståeligt, uden at den videnskabelige holdbarhed tabes.