Chicago Police Officer Eric E. Stillman chased a boy down an alleyway. It was the early morning of March 29. In Minnesota, opening statements in the Derek Chauvin trial were coming in a few hours. Stillman had responded to reports of gunshots in Little Village, a predominantly Latino community on Chicago's West Side. "Stop right now!" the officer yelled at Adam Toledo, a 13-year-old seventh grade
The tiny helicopter took off and hovered briefly — the first such flight on another planet. The Perseverance rover kept tabs on the mission from a viewing point about 60 yards away. (Image credit: NASA via AP)
A Tesla Model S crashed into a tree and burst into flames on Saturday evening in Spring, Texas, not far from Houston — but investigators of the wreck found neither of its occupants in the driver's seat. Following the fatal crash, two bodies were removed from the wreck, neither of which was actually behind the wheel. One person was in the front passenger seat, while the other body was found in the
NASA's Mars helicopter has made history. Ingenuity , a small, four-pound rotorcraft that was dropped off by the agency's Perseverance rover earlier this year, became the first manmade object to achieve powered, controlled flight on the surface of another planet earlier this morning. It's a feat that could revolutionize the way we explore the surface of other planets, including Mars, in the medium
Tomas Schuler / EyeEm / Getty I cannot remember whether I knew what compulsive hoarding was before 2009. Likely not. That year, the TV network A&E put the disorder on the cultural radar in an unparalleled way with its show Hoarders. The series introduced a public audience to a sometimes-private struggle—the obsessive need to acquire objects, coupled with the fear of letting them go—and offered it
Last week, I covered my nose and mouth with close-fitting fabric like a good citizen and walked to a restaurant in Washington, D.C., where I de-masked at a patio table to greet a friend. I sat with my chair facing the entrance and watched dozens of people perform the same ritual, removing a mask they'd worn outside and alone. It seemed like the most normal thing in the world. Until, suddenly, it
A team of astronomers led by Dutch scientists has directly imaged a giant planet orbiting at a large distance around a sun-like star. Why this planet is so massive and how it got to be there is a mystery. The researchers will publish their findings in the journal Astronomy & Astrophysics.
An international team of astronomers has conducted a detailed kinematic study of a radio galaxy known as 3C 84. The research sheds more light on the properties of this source and its connection to gamma-ray emission. The study was detailed in a paper published April 7 on the arXiv pre-print repository.
In the weeks following its launch in early 2006, when NASA's New Horizons was still close to home, it took just minutes to transmit a command to the spacecraft, and hear back that the onboard computer received and was ready to carry out the instructions.
Organizers of a $20 million contest to develop products from greenhouse gas that flows from power plants announced two winners Monday ahead of launching a similar but much bigger competition backed by Elon Musk.
Countless inquiries have found the same problems afflicting the mental health system, but cost and access barriers still leave those seeking and providing care in despair 'The worst it's ever been': Guardian readers tell us about Australia's mental health system Many Australians experience the country's mental health system as inadequate, dangerous and financially punishing, saying they often fee
Special Jet Suit Ops In a new video released by jetpack maker Gravity Industries, a jetsuit-wearing special ops soldier from the Netherlands Maritime Special Operations Force can be seen boarding a ship — by flying there from a nearby pursuit vessel. It's a spectacular demonstration of Gravity Industries' flying technology. Rather than having to pursue and approach the ship in the tailing vessel,
Ingenuity successfully takes flight, hovering at height of about 3 metres before touching back down Nasa is celebrating the first powered, controlled flight on another planet after its Ingenuity helicopter rose into the Martian sky, hovered for a moment, and then gently returned to the dusty surface. The robotic craft climbed to an altitude of about 3 metres on its maiden flight on Monday morning
Belugas play, a sperm whale nurses, and orcas teach their pups to hunt in a series of photographs from National Geographic photographer and explorer Brian Skerry. (Image credit: Brian Skerry/National Geographic)
The U.S. is planning to rapidly reduce greenhouse gas emissions. This is America's return to the international climate stage. We break it down for you. (Image credit: Chandan Khanna/AFP via Getty Images)
Latest updates: PM's forthcoming trip to India cancelled as country's total cases reach 15m 'If we catch Covid, we die': UK shielders reflect on still feeling unsafe Oxford trial to study effect of immune system on reinfection Coronavirus – latest updates See all our coronavirus coverage 10.29am BST Matt Hancock, the health secretary, is making a statement to MPs on coronavirus at 3.30pm. Two maj
If all goes to plan, craft will ascend to 10 feet above the surface of Mars, hover for 30 seconds, then rotate before descending Nasa on Monday will attempt to fly a miniature helicopter above the surface of Mars in what would be the first powered, controlled flight of an aircraft on another planet. If all goes to plan, the 1.8kg helicopter will slowly ascend to an altitude of three metres above
While most followed restrictions, one in seven admitted to decreasing levels of compliance Coronavirus – latest updates See all our coronavirus coverage People under 30 were less compliant with Covid rules over the past year, according to survey data from more than 50,000 adults in the UK. While the still to be peer-reviewed analysis suggests most people followed lockdown and social distancing ru
Understanding these tiny organisms could be crucial to tackling threats such as coronavirus, but new research shows how little we know A new study has highlighted how little is known about microbes – the hidden majority of life on Earth. Life on the planet relies on an enormous quantity of bacteria, fungi and other tiny organisms. They generate oxygen, keep soils healthy and regulate the climate.
Oxford scientists will track whether participants are reinfected when re-exposed to coronavirus Coronavirus – latest updates See all our coronavirus coverage The immune response needed to protect people against reinfection with the coronavirus will be explored in a new human challenge trial, researchers have revealed. Human challenge trials involve deliberately exposing healthy people to a diseas
Physicists are always looking for eureka moments – but we should be careful with headline-grabbing announcements There is something curious about the great experiments and discoveries in fundamental physics from the past few decades. They have covered black holes , gravitational waves , the Higgs particle and quantum entanglement . They have led to Nobel prizes, reached the front pages of newspap
According to a new paper published in the journal Nature today, the evidence is overwhelming: COVID-19 vaccines work, and they work well. In fact, Israel's vaccination program — the most expansive on Earth — has been so successful that it has "pretty much eradicated COVID-19 from Israel, at least for the time being," Weizmann Institute researcher and co-author of the new paper Eran Segal wrote in
Gas Guzzlers In a new study, Japanese scientists found that a star's final size doesn't depend on how big its initial core was but rather how successful it was at competing with its neighbors for resources. That came as a shock, as the astronomy community long assumed that the mass of a newly-formed core or one collapsed from a dead star — both the seeds of new star formation — had a much larger
One conclusion is apparent following Donald Trump's four years in office: A sitting president is perhaps the only American who is not bound by criminal law, and thus not swayed by its disincentives. What's astonishing is that this immunity has no grounding in actual law. It's not in the Constitution or any federal statute, regulation, or judicial decision. It is not law at all. Instead, the ban o
Last October, before the second pandemic wave took off in New York City, I had one last band practice in my backyard in South Brooklyn. Five of us were working on songs from my new solo record. Normally we'd play in the basement, but it's pretty low-ceilinged, and we'd read Zeynep Tufekci's recent Atlantic article on viral spread, so we were all hyper-focused on air circulation. My bandmate Sara
Christian Elliot is a self-proclaimed "natural health nerd" and entrepreneur who recently published 18 reasons why he wouldn't take the COVID-19 vaccine. Unfortunately, it's viral disinformation based on conspiracy theories, bad science, pseudoscience, and nonsense. The post first appeared on Science-Based Medicine .
Superliminal Advertising As new robots are built to be increasingly social and designed to appeal to our need for emotional connections, a prominent AI ethicist warns that humanity may end up being exploited. MIT Media Lab researcher Kate Darling, an expert on tech ethics and the relationships and interactions between humans and robots, warned The Guardian that the way we talk and think about rob
NASA / JPL-Caltech / Jason Major For the first time in history, humankind has taken flight on another planet. Millions of miles from Earth, on an alien world with a wisp-thin atmosphere, a tiny helicopter rose into the air, hovered for 39 seconds , and then gently touched back down on the surface of Mars. Today's historic flight is a tremendous feat of engineering and a marvelous display of—as th
Like many Americans, Ariane Dvir is eligible for a COVID-19 vaccine. Only, she doesn't live in America. From her home near Cologne, in western Germany, she has spent much of this year hearing about her loved ones back in the United States getting vaccinated. Her husband, an Israeli citizen, has heard about his family and friends in Israel doing the same. Though the couple had intended to wait the
At a conference in New Orleans in 2007, Jon Greiner, then the chief of police in Ogden, Utah, heard a presentation by the New York City Police Department about a sophisticated new data hub called a " real time crime center. " Reams of information rendered in red and green splotches, dotted lines, and tiny yellow icons appeared as overlays on an interactive map of New York City: Murders. Shootings
I've been watching For All Mankind – a very interesting series that imagines an alternate history in which the Soviets beat the US to landing on the Moon, triggering an extended space race that puts us decades ahead of where we are now. By the 1980s we had a permanent lunar base and a reusable lunar lander, not to mention spacecraft with nuclear engines. Meanwhile, back in reality, we are approac
Someday, scientists believe, tiny DNA-based robots and other nanodevices will deliver medicine inside our bodies, detect the presence of deadly pathogens, and help manufacture increasingly smaller electronics.
When I was a teenager, my hometown football—soccer—team was bought by a local businessman who began his career as a safecracker, became friends with Donald Trump, and ended his days broke and in jail. George Reynolds, who died last week, lived an Englishman's version of the American dream: He got rich, bought a local institution, then went bankrupt. For a moment, his ownership sparked a kind of g
Researchers from Tokyo Metropolitan University and Hosei University have discovered a new species of large, tropical centipede of genus Scolopendra in Okinawa and Taiwan. It is only the third amphibious centipede identified in the world, and is the largest in the region, 20 cm long and nearly 2 cm thick. It is also the first new centipede to be identified in Japan in 143 years, testament to the in
The news: NASA has flown an aircraft on another planet for the first time. On Monday, April 19, Ingenuity, a 1.8-kilogram drone helicopter, took off from the surface of Mars, flew up about three meters, then swiveled and hovered for 40 seconds. The historic moment was livestreamed on YouTube , and Ingenuity captured the photo above with one of its two cameras. "We can now say that human beings ha
Optimal cell function requires a fine balance between the synthesis and degradation of biomolecules. Autophagy is the process by which cells degrade and recycle their own components, helping to clean up and maintain the cell's internal environment and ensure the smooth functioning of cellular processes. Autophagy is strongly induced when cells are subjected to stresses like nutrient deprivation, a
CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) is a revolutionary technology that gives scientists the ability to alter DNA. On the one hand, this tool could mean the elimination of certain diseases. On the other, there are concerns (both ethical and practical) about its misuse and the yet-unknown consequences of such experimentation. "The technique could be misused in horribl
Joe Biden spent the bulk of his adult life running for president or auditioning to be president. Now he is president, and yet the notion that he might walk away from the job while he still has a choice in the matter remains a source of undimmed speculation rare in the postwar era. No one seriously believed that Bill Clinton, George W. Bush, Barack Obama, Donald Trump, or any president over the pa
Up to 25 percent of global food production is lost annually due to insects, primarily beetles. For the past 500 million years, beetles have successfully spread and adapted to life around the globe and now account for one of every five animal species on Earth. Yet as far back as ancient Egypt, these tough little bugs have invaded granaries and vexed us humans by destroying our crops.
A colourful puzzle from the UK girls' maths olympiad Update: the solutions can now be read here. Today's puzzle celebrates the UK's outstanding performance at last week's European Girls' Mathematical Olympiad, which is the world's most prestigious female-only maths competition for pre-university students. Yuhka Machino and Jenni Voon, both aged 17, placed 6th and 7th overall, each earning gold me
Few people today are familiar with the Yazoo Land Scandal, which broke in the mid-1790s. Yet it sent shockwaves through American public life, influencing politics, law, and even geography. Without it, Georgia could have been a "super state" — and the Trail of Tears might not have happened. Seven of the original 13 states had extensive territorial claims, mainly toward the west. Credit: Library of
Illustration by John Gall; Searchlight Pictures This article was published online on April 19, 2021. I grew up in San Diego , which resembles the backdrop of High Noon or Unforgiven not at all but is extremely west , geographically speaking. Maybe this is what disposed me to feel that the Western as a film genre was trite and foolish, dangerously sentimental about horizons and stoicism and men sh
It has been known for about a year that minks can become infected with SARS-CoV-2. The virus had been transmitted from humans to farmed mink and mutated in infected animals. Mutations were acquired in the spike protein, which is crucial for the entry of the virus into host cells and represents the central point of attack for antibodies. These SARS-CoV-2 variants from mink were transmitted back to
Researchers worked with almost 260 people to understand online disagreements and to develop potential design interventions that could make these discussions more productive and centered around relationship-building.
Svenska nyhetsmedier står starka på digitala plattformar och fortsätter att prioritera granskande och undersökande journalistik, visar en internationell studie. Men i Sverige, liksom i övriga undersökta länder, är det sämre ställt med journalisters anställningstrygghet. Sverige tillhör, tillsammans med Danmark och Storbritannien, de länder där nyhetsmedierna bäst klarat de senaste årens digitala
Alarms about the declining diversity of plants and animals raise a related concern with equally profound implications: Is the variety of microbial life, including viruses, changing too? And if so, in which direction and how fast?
Alison McAlpine's documentary draws out tales from locals and astronomers to evoke the magic and mystery of Chile's stargazing hotspot Cielo means "sky" in Spanish, and "heaven", too. And it's with a sense of humbled wonder at the immense mystery of it all that the Canadian film-maker Alison McAlpine casts her camera upwards in this beautiful documentary about the night sky. It's filmed at the st
In October 2017, humanity caught its first-ever glimpse of an interstellar object—a visitor from beyond our solar system—passing nearby the sun. We named it "Oumuamua, and its unusual properties fascinated and confounded astronomers. Less than two years later, amateur astronomer Gennady Borisov found a second interstellar object: a comet-like body that began to disintegrate as it passed within 2 A
It-kriminelle kan alt for let udgive sig for at være en række sundhedsmyndigheder og udnytte troværdige domæner til corona-relaterede phishing-angreb, fordi myndighederne mangler at implementere basal mail-sikkerhed. Det er ikke godt nok, lyder det fra eksperter.
On April 21, 1908, near Earth's North Pole, the Arctic explorer Frederick Albert Cook scrawled in his diary a memorable phrase: "We were the only pulsating creatures in a dead world of ice." These words may soon take on new significance for humankind in another dead world of hidden ice, submerged beneath the red sand of its frigid deserts. This dead world is Mars, and the desert is the planet's mi
The mission to determine the impact of the giant A-68a iceberg on the important marine ecosystem of sub-Antarctic South Georgia is a success according to a team of researchers and engineers, from British Antarctic Survey (BAS) and National Oceanography Centre (NOC). This week (Monday 19 April) the U.S National Ice Center declared 'the end' of the A68 iceberg, because its fragments are now too smal
A new study uses computer modeling to suggest that eviction bans authorized during the COVID-19 pandemic reduced the infection rate and not only protected those who would have lost their housing but also entire communities from the spread of infections.
'Generalist' plants and pollinators play a crucial role in maintaining biodiversity and may also serve as buffers against some impacts of climate change, finds new research. The findings provide valuable insights for prioritizing the conservation of species that contribute to the strength of ecological communities.
Engineering giant Honeywell burst into the quantum computing race out of left field last year. Now the company has provided the first concrete details of how its device works in a peer-reviewed journal . Unlike its main rivals Google and IBM, who rely on superconducting qubits, Honeywell is using trapped ions to power its device. The technology has a long pedigree— most of the earliest quantum co
If there is one driving force in the commercial space industry it is economics. The whole concept of reusable booster rocket emphasizes the importance of getting launch costs down. SpaceX, the company leading the charge in trying to bring launch costs down, doesn't just recover booster rockets however. It also recovers the rocket fairings that hold the payload during launch. SpaceX's original plan
A new accelerator and detector will serve as a kind of camera, taking 3D images and movies of electrons colliding with polarized protons and ions. Like a CT scanner for atoms, the EIC will let scientists see how force-carrying gluon particles hold together quarks, the internal components of protons and neutrons. It will also offer insights into the spin of fundamental particles. Cutting-edge accel
Scientists have for the first time captured the complex dynamics of particle movement in granular materials, helping to explain why mixed nuts often see the larger Brazil nuts gather at the top. The findings could have vital impact on industries struggling with the phenomenon, such as pharmaceuticals and mining.
In the past, we've reported about how the Roman Space Telescope is potentially going to be able to detect hundreds of thousands of exoplanets using a technique known as microlensing. Exoplanets won't be the only things it can find with this technique, though—it should be possible to find solitary black holes, as well.
Framtida klimatförändringar riskerar att påverka pollenallergiker negativt. Det visar en ny internationell studie där forskarna tittat på hur gräs reagerar på förhöjda koldioxidnivåer. – Det är inte glädjande om fler behöver leva med dessa frågor i framtiden, säger Kristina Ljungros, generalsekreterare på Astma- och allergiförbundet.
Nasa's Ingenuity Mars helicopter has completed the first powered, controlled flight on another planet, the space agency has announced. The small helicopter successfully took flight on the red planet on Monday morning, hovering in the air at about 3 metres (10ft), before descending and touching back down on the Martian surface Nasa's Mars helicopter makes first powered, controlled flight on anothe
Nature Communications, Published online: 19 April 2021; doi:10.1038/s41467-021-22581-7 The global agrarian transition is characterized by a rise in large-scale land acquisitions (LSLAs), whose energy impacts are unknown. Here, the authors assess how LSLAs change land use, finding that they necessitate greater investment in energy to meet demands, and greater greenhouse gas emissions.
Asteroids can pose a threat to life on Earth but are also a valuable source of resources to make fuel or water to aid deep space exploration. Devoid of geological and atmospheric processes, these space rocks provide a window onto the evolution of the solar system. But to really understand their secrets, scientists must know what's inside them.
Women report feeling more exhausted than men do after video calls, according to the first large-scale study on Zoom fatigue. The researchers say the "self-view" display may be to blame for that exhausted feeling after a day of back-to-back online meetings. The research shows that overall, one in seven women —13.8%—compared with one in 20 men —5.5%—reported feeling "very" to "extremely" fatigued a
Carbon is a universal building block of life—it's in almost every product we make and use, from the cement we walk on to the plastic packaging used for shipping products and the tires on cars and trucks. And while some products are more durable than others, at the end of the product's life cycle, the carbon stored in them is released into our air and oceans as carbon dioxide. Greenhouse gas emissi
A 3D biomaterial scaffold design to slowly release stem cells ensures that implanted stem cells stick around to relieve pain and reverse arthritis in mice knee joints. This reduces the use of stem cells by 90%, thus avoiding the challenge of redness, swelling and scar tissue that can arise from large doses of such stem cells, and potentially opening a path to reversal of osteoarthritis in humans f
Nature Communications, Published online: 19 April 2021; doi:10.1038/s41467-021-22646-7 Tracking the evolution of non-equilibrium phases requires measurements over a wide range of timescales. Here, using a combination of femtosecond spectroscopy and scanning tunneling microscopy, the authors map out a temporal phase diagram of metastable states in a charge-ordered material 1T-TaS2.
Hur kommunicerar man bäst fakta om covid19-vaccin? Forskarna bakom Handbok i debunkning 2020 har presenterat ännu en handbok som översatts till svenska under ledning av Lotten Kalenius. Kommunikationshandbok för vaccin … Continued Inlägget dök först upp på Vetenskap och Folkbildning .
Language is one of the most notable abilities humans have. It allows us to express complex meanings and transmit knowledge from generation to generation. An important question in human biology is how this ability ended up being developed, and researchers from the universities of Barcelona, Cologne and Tokyo have treated this issue in a recent article.
The "Great Oxygenation Event" (GOE), the process whereby the Earth's atmosphere was continuously enriched with oxygen, a waste product of photosynthesis, began ~2.43 billion years ago. The source, according to science, was photosynthesizing cyanobacteria. But why did this all-important turnaround occur so late? Cyanobacterial life existed, as rock samples show, at least 300 million years before th
The US Congress is considering a proposed law to ban the import and sale of kangaroo parts. Backed by a campaign called Kangaroos Are Not Shoes, the bill is aimed at stopping Nike, Adidas and other big brands from using kangaroo leather in their products.
Nature Communications, Published online: 19 April 2021; doi:10.1038/s41467-021-22657-4 Stratification has a considerable influence on lake ecology, but there is little understanding of past or future changes in its seasonality. Here, the authors use modelling and empirical data to determine that between 1901–2099, climate change causes stratification to start earlier and end later.
Mike Whittaker has a suggestion to reduce test costs for those wishing to travel abroad, while Catherine Dunn says that if the government invested in public health infrastructure, we would have a more effective testing system Your article ( Airlines warn the cost of Covid tests will stop people going abroad , 9 April) considers the cost of Covid tests for a family, calculated as the cost of a sin
Experts have narrowed the group of individuals with prior allergies who should see an allergist before receiving a COVID-19 vaccine. Allergy evaluation with skin testing prior to COVID-19 vaccination is rarely needed.
Airbnb hosts in college towns increase their listing prices much more than hotels when there are home football games against rival teams. Hosts experience a 78 percent reduction in rental income by listing prices too high, according to a new study by the University of California San Diego.
A survey of U.S. multiple sclerosis, or MS, specialist clinicians reveals the COVID-19 pandemic has created major changes in how they deliver care. More than 95% of survey respondents reported using telehealth platforms to provide care for their patients. Approximately one half of the respondents were MS specialist neurologists, four out of five of whom indicated that COVID-19 had changed how they
Stanford engineers find that cancer cells exhibit a unique mode of migration on squishy materials, which are similar to biological tissues. In contrast, cell movement – a process central to cancer metastasis and other biological processes – is typically studied on very rigid materials.
At the current rate of change, it will take more than 200 years for the proportion of women in orthopaedic surgery to reach parity with the overall medical profession, according to a study in Clinical Orthopaedics and Related Research® (CORR®), a publication of The Association of Bone and Joint Surgeons®. The journal is published in the Lippincott portfolio by Wolters Kluwer.
A new UC Riverside study finds a naturally occurring "earthquake gate" that decides which earthquakes are allowed to grow into magnitude 8 or greater. Sometimes, the "gate" stops earthquakes in the magnitude 7 range, while ones that pass through the gate grow to magnitude 8 or greater, releasing over 32 times as much energy as a magnitude 7.
By changing EMS workflows and incorporating telemedicine techniques, physicians at MUSC Health have significantly shortened the time between a patient's stroke symptom onset and their treatment, as recently reported in the Journal of Stroke and Cerebrovascular Diseases. Before the telestroke program, stroke patients would be brought directly to the closest hospital, where they would begin their ex
Ebel looked for the California faults that had magnitude 4 or larger earthquakes occurring at a rate higher than 0.5 earthquakes per year from 1997 to 2016. If the pattern holds, the next magnitude 6.7 earthquakes in California are most likely to occur along these faults.
Data from a GPS network in Colombia have revealed a shallow and fully locked part on the Caribbean subduction zone in the country that suggests a possible large earthquake and tsunami risk for the northwest region.
Treating people with Type 2 diabetes with a new once-a-week injectable insulin therapy proved to be safe and as effective as daily insulin injections, according to the results of two international clinical trials published online today in Diabetes Care. The studies suggest that the once-weekly treatment could provide a convenient alternative to the burden of daily insulin shots for diabetes patien
Researchers at Albert Einstein College of Medicine have developed a topical drug that regenerates and restores the function of erectile nerves damaged by radical prostatectomy, the most common treatment for localized prostate cancer. The drug was tested in rats, and the findings were published online today in JCI Insight.
Nature, Published online: 19 April 2021; doi:10.1038/d41586-021-00979-z Mutations of the NOD2 gene are risk factors for Crohn's disease. Many aspects of how they contribute to the condition are unknown. The discovery of cell populations that are involved suggests new therapeutic options.
Hydrogen will be needed in large quantities as an energy carrier and raw material in the energy system of the future. To achieve this, however, hydrogen must be produced in a climate-neutral way, for example through so-called photoelectrolysis, by using sunlight to split water into hydrogen and oxygen. As photoelectrodes, semiconducting materials are needed that convert sunlight into electricity a
A new study classifies different types of wildlife traffickers and sellers in two of Central Africa's growing urban centers, providing new insight into the poorly understood urban illegal wildlife trade. The findings can help conservation and law enforcement authorities prioritize their efforts on professional criminals, identify patterns among repeat offenders, and determine if wildlife offenders
Coral reefs are one of the most biologically diverse ecosystems on earth. In the northern Red Sea and Gulf of Aqaba corals also have exceptionally high tolerance to increasing seawater temperatures, now occurring as a consequence of global warming. This characteristic led coral reef scientists to designate this region as a potential coral reef refuge in the face of climate change—a reef where cora
Transgender and gender-diverse people have higher rates of hypertension compared to the general population. Within two to four months of starting gender-affirming hormone therapy, transgender women had a lower average systolic blood pressure, and transgender men had a higher average systolic blood pressure.
Researchers are blurring the lines between science and art by showing how a laser can be used to create artistic masterpieces in a way that mirrors classical paints and brushes. The new technique not only creates paint-like strokes of color on metal but also offers a way to change or erase colors.
Due to global warming, not only the temperatures in the atmosphere and in the ocean are rising, but also winds and ocean currents as well as the oxygen distribution in the ocean are changing. For example, the oxygen content in the ocean has decreased globally by about 2% in the last 60 years, particularly strong in the tropical oceans. However, these regions are characterized by a complex system o
Researchers used platinum and aluminum compounds to create a catalyst which enables certain chemical reactions to occur more efficiently than ever before. The catalyst could significantly reduce energy usage in various industrial and pharmaceutical processes. It also allows for a wider range of sustainable sources to feed the processes, which could reduce the demand for fossil fuels required by th
A new model has proved successful in predicting COVID-19 infection rates two to three weeks in advance, researchers report. The new model could help public health officials and other organizations get accurate, reliable short-term projections of daily COVID-19 cases. The researchers used a method based on the SEIR (susceptible, exposed, infected, and recovered states) framework to project COVID-1
A micro-sized polymeric net wrapping around brain tumors, just like a fishing net around a shoal of fish: this is microMESH, a new nanomedicine device capable of conforming around the surface of tumor masses and efficiently delivering drugs. It has been described by the researchers of the IIT—Istituto Italiano di Tecnologia (Italian Institute of Technology) in Nature Nanotechnology. The new biomed
Solid-matrix catalysts called heterogeneous catalysts are among the most widespread industrial applications in reducing toxic gases, unburned fuel, and particulate matter in the exhaust stream from the combustion chamber. They are also used in energy, chemical, and pharmaceutical sectors, i.e., production of biodiesel, polymers, biomass/waste conversion into valuable products, and many others proc
A team at HZB, together with partners from Ben Gurion University and the Technion, Israel, has now analysed the optoelectronic properties of rust (haematite) and other metal oxides in unprecedented detail. Their results show that the maximum achievable efficiency of haematite electrodes is significantly lower than previously assumed. The study demonstrates ways to assess new photoelectrode materia
In a new paper published in Nature Communications, Mayo Clinic researchers and collaborators report the protein-coding gene SERPINA5 may worsen tau protein tangles, which are characteristic of Alzheimer's disease, and advance disease. By combining clinical expertise, brain tissue samples, pathology expertise and artificial intelligence, the team clarified and validated the relevance of the gene to
The New Horizons probe scanned Pluto in 2015, but it wasn't designed to remain in Orbiter of the dwarf planet. NASA's New Horizons probe has already made history a few times since its 2006 launch. At the time, Pluto was a planet, but it had become a dwarf planet when New Horizons beamed back the first close-up photos of it in 2015. After that, the probe flew deeper into the Kuiper Belt and delive
An estimated 50 million people undergo surgery each year in the United States, and a significant proportion of them have undiagnosed or untreated sleep disorders (SD) or sleep-disordered breathing (SDB). Issues at the intersection of anesthesiology and sleep medicine are the focus of the Society of Anesthesia and Sleep Medicine (SASM) whose 10th anniversary is commemorated in the special theme May
Scientists have sequenced ancient DNA from soil for the first time and the advance will transform what is known about everything from evolution to climate change. The findings have been described as the 'moon landings' of genomics because researchers will no longer have to rely on finding and testing fossils to determine genetic ancestry, links and discoveries – and it is thanks to Stone Age black
A new National Academies report on benefits of collaborative care models for dementia cites research and implementation by Regenstrief Institute research scientists. Collaborative care models integrate medical and psychosocial care, delivered by a team of providers.
A team of researchers led by Assistant Professor of Mechanical and Biomedical Engineering and Principal Investigator at the NYU Abu Dhabi Mohammad A. Qasaimeh, have developed a new microfluidic system, called the Herringbone Microfluidic Probe (HB-MFP), that effectively isolates both CTCs and clusters of CTCs from blood samples of cancer patients for easier and more insightful analysis.
Researchers and physicians from the Occupational Safety and Health Administration (OSHA) and UC San Francisco have found that deaths of workers using methylene chloride paint strippers are on the rise. The solvent is widely used in paint strippers, cleaners, adhesives and sealants.
Following the unveiling of CAPTURE in a December 2020 study, researchers led by Duke University and Harvard University present DANNCE (3-Dimensional Aligned Neural Network for Computational Ethology), an automated tool that can readily capture behavior of freely behaving animals and precisely reconstruct their three dimensional (3D) pose from a single video camera and without markers.
Having an epidural during childbirth is not associated with a greater risk of autism in the child, according to a study led by researchers at the Stanford University School of Medicine and the University of Manitoba.
Scientists have been able to demonstrate that graphene nanostructures can be generated by annealing of a nanostructured silicon carbide crystal for a few years. "These two-dimensional, spatially strongly restricted carbon bands exhibit a vanishingly small electrical resistance even at room temperature. They are thus ballistic," explains Prof. Dr. Christoph Tegenkamp, Head of the Professorship of S
Using machine learning methods, researchers at TU Graz can predict the structure formation of functionalized molecules at the interfaces of hybrid materials. Now they have also succeeded in looking behind the driving forces of this structure formation.
The Andes Mountains of South America are the most species-rich biodiversity hotspot for plant and vertebrate species in the world. But the forest that climbs up this mountain range provides another important service to humanity.
Researchers at SAHMRI and Flinders University have conducted the largest ever meta-analysis of wellbeing studies from around the world to answer the question, "What's the best way to build personal wellbeing?".
Brazilian President Jair Bolsonaro confirmed his country's participation in a virtual climate summit convened by the U.S. for April 22 and 23, vowing in a recent letter to U.S. President Joe Biden to end illegal deforestation in Brazil by 2030—a striking about-face from a longtime adversary to the country's environmental policies.
Brain mapping is an attempt to identify the location of everything in the brain. An accurate map of the brain would immeasurably enhance our ability to understand how it works. The project is massive, involving multiple fields of biomedical research and expensive cutting-edge technology. Brain mapping is one of the hottest current areas of research. The brain is nothing short of amazing. Billions
COVID-19 patients who are overweight or obese are more likely to develop a more severe infection than patients of healthy weight, and they require oxygen and invasive mechanical ventilation more often. There is no increased risk of death . These conclusions, for which more than 7,000 patients were studied, appear from international research in eleven countries, including the Netherlands (Radboud u
A joint research carried out by MIPT scientists and Harvard researchers have presented retinal cells that can integrate into the retina. This is the first successful attempt to transplant ganglion cells (retinal neurons that are destroyed by glaucoma) derived from stem cells in a lab setting. Scientists tested the technology in mice and established that the cells successfully integrated and surviv
Animals are communicating — but what are they saying? And can we talk back? Marine biologist David Gruber introduces Project CETI: a team of scientists, linguists and AI specialists hoping to decode sperm whale language. Using noninvasive robots and a machine-learning algorithm to collect and analyze millions of sperm whale vocalizations known as coda, the team aims to demystify the communication
Researchers have discovered a single footprint left by a cat-sized dinosaur around 100 million years ago in China. "This footprint was made by a herbivorous, armored dinosaur known broadly as a stegosaur—the family of dinosaurs that includes the famed stegosaurus," says Anthony Romilio, a researcher from the University of Queensland who was part of the team that investigated the track. "Like the
One of specialties of Phil Baran's group at Scripps the last few years has been electrosynthesis, which has a traditional hmm-interesting-turn-the-page reputation among most synthetic chemists that they're trying to change . Photochemistry was in roughly the same category at one time, and has become much more mainstream (although it always had an advantage with lower barrier to entry). That field
ALS-patienter har sjukdomsförändringar i de hjärnceller som tillverkar ämnen som reglerar ämnesomsättning och sömn. Det visar en grupp forskare i Lund och Australien. Fynden ger ökad kunskap om sjukdomens bakomliggande orsaker och kan förhoppningsvis på sikt bidra till nya behandlingar. Vanliga symtom vid ALS, amyotrofisk lateral skleros, är en smygande muskelsvaghet som sprider sig till olika de
Carbon nanotubes (CNT) are a family of 1D nanostructures with numerous verified applications, made possible due to their excellent mechanical, optical and conductive properties. However, application of CNTs is hampered by the presence of species with various structures in the raw production mixture, which obscures unique properties of individual species.
New research has revealed that shoppers are significantly more likely to purchase crowdfunded products than items that use an alternative funding source, as they want to see less inequality in the marketplace.
Massive stars end their lives in explosions called core-collapse supernovae. These explosions produce very large numbers of weakly interacting particles called neutrinos. Scientists working on the Deep Underground Neutrino Experiment, hosted by Fermilab, are seeking to perform a detailed measurement of supernova neutrinos. This effort could lead to groundbreaking discoveries in particle physics an
Southeastern Tibet is one of the most glaciated regions on the Tibetan Plateau both at present and during the Quaternary. Numerical dating of glacial deposits has allowed the establishment of a provisional chronology of Quaternary glacial fluctuations in this region, with the oldest glaciation (Guxiang Glaciation) occurring in marine oxygen isotope stage 6 (MIS-6). However, glaciations predating M
Next to cat videos, watching small and cuddly rabbits is probably one of the most popular internet pastimes. Plus they appear in literature as well as in traditional folklore spanning numerous cultures, thanks likely to the fact that rabbits reside on every continent except Antarctica.
Over the last 200 years, researchers have worked towards understanding the global distribution of species and ecosystems. But so far even the basic knowledge on the global geography of genetic diversity was limited.
With its more than 40 million articles in 301 different languages, Wikipedia is one of the largest human collaboration efforts in history. One of the main pillars on which this wish to bring together the sum of all knowledge is based is the achievement of a neutral space. However, several studies suggest that the site suffers from a persistent gender bias as regards both content and the compositio
Alzheimer's disease (AD) is a form of progressive dementia interfering with daily living. It is caused by the decline in the number of brain cells resulting in the deterioration of our mental abilities. One of the main reasons for the worsening brain cells condition and even the brain shrinkage are molecules having a specific structure called β-amyloids. They are peptides that tend to agglomerate
New, detailed study of the Renland Ice Cap offers the possibility of modelling other smaller ice caps and glaciers with much greater accuracy than hitherto. The study combined airborne radar data to determine the thickness of the ice cap with on-site measurements of the thickness of the ice cap and satellite data. Researchers from the Niels Bohr Institute – University of Copenhagen gathered data f
Spoken dialogue is the most natural way for people to interact with complex autonomous agents such as robots. Future Army operational environments will require technology that allows artificial intelligent agents to understand and carry out commands and interact with them as teammates.
Liquid Crystals (LC) are widely deployed in display technology and optical fibers. From smartphones in your pockets to large screen TVs, LCs are everywhere, as this special state of matter has been found in colorful soap bubbles as well as certain living tissues.
A new study led by scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science provides evidence that humans are influencing wind and weather patterns across the eastern United States and western Europe by releasing CO2 and other pollutants into Earth's atmosphere.
A forest looks like a hotbed of randomness, with trees and plants scattered in wild and capricious diversity. But appearances can be deceiving, say a trio of complexity researchers at the Santa Fe Institute (SFI). Underneath that apparent messiness lurk extraordinary regularities, governed by the biological mechanisms that drive universal forces of growth, death, and competition.
The results of coral beaching are obvious—stark underwater forests of white coral skeletons—yet the physiological processes of bleaching are not well understood. Now, KAUST researchers show that, long before signs of bleaching appear, prolonged spells of warm water cause heat stress that disrupts the nutrient cycling of the coral and its symbiotic algae.
The Galápagos Islands have played a historic role since Charles Darwin's visit onboard the HMS Beagle in 1835. Today, a team of scientists, including from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science, studied a large eruption in the archipelago to get new insights into how volcanoes behave and could help forecast future events.
An approaching powerful typhoon has left at least one person dead, another missing and prompted the evacuation of more than 100,000 people as a precaution in the eastern and central Philippines, although the unusual summer storm is not expected to blow into land, officials said Monday.
Helikopterdrönaren Ingenuity ("sinnrikhet") lyfte för egen kraft den 19 april, steg tre meter över marken, och hovrade i en halv minut innan den landade igen. Hela syftet med Ingenuity är att testa flygning i en annan atmosfär. Luften på Mars är tunn, bara en procent av luftens täthet på jorden, och därför måste rotorbladen snurra mycket fortare än på motsvarande farkost i jordatmosfären. Å andra
In an effort to curb global warming, engineers have created the whitest paint ever made. Coating buildings with this paint may one day cool them off enough to reduce the need for air conditioning, the researchers say. In October, the team created an ultra-white paint that pushed limits on how white paint can be. Now they've outdone that. Not only is the new paint whiter, it can also can keep surf
The research is conducted by Kazan University's Open Lab Gene and Cell Technologies (Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology) and Republic Clinical Hospital of Kazan. Lead Research Associate Yana Mukhamedshina serves as project head.
While studying strontium titanate with electron paramagnetic resonance, a team from KFU's Center for Quantum Technology has found that the shape of a specimen of strontium titanate influences its internal symmetry. The research was co-conducted by the Ioffe Institute of Physics and Technology (Russia) and the Institute of Physics of the Czech Academy of Sciences.
In December 2019, a new viral infection was detected in Wuhan, China. On January 30, 2020, the World Health Organization declared the outbreak a public health emergency of international concern, and on March 11, the COVID-19 pandemic. In light of the danger that the infection poses to human personnel, the idea to utilize automation in hospitals is one of the natural solutions in healthcare.
Intellectual disability is most often caused by changes to the genome that take place in early fetal development and are not found in the parents' DNA. This is why the risk of recurrence in the next sibling of the family is very small, as indicated by a study conducted at the University of Helsinki. Furthermore, Finns do not have a higher risk of inherited developmental disorders compared to other
There are many variants of "goblet cells" in the intestines and they seem to have different functions, according to a new study from the University of Gothenburg. The study indicates that defects in goblet cells of a particular type may be a factor contributing to ulcerative colitis, an inflammatory bowel disease.
A simple dietary supplement reduces behavioral symptoms in mice with a genetic mutation that causes schizophrenia. After additional experiments, including visualizing the fluorescently stained dancing edge of immature brain cells (video included), researchers concluded that the supplement likely protects proteins that build neurons' cellular skeletons. The supplement, betaine, is already used clin
Psoriasis is a common inflammatory skin condition. The skin inflammation is usually triggered by external factors such as infections or stress. A research team at the Institute of Cancer Research of the Medical University of Vienna has now managed to identify a new factor in signal transmission of the immune system that plays a major role in the development of a psoriatic episode.
Nature, Published online: 16 April 2021; doi:10.1038/d41586-021-01041-8 Researchers estimate the T. rex population over the 2 million or so years they existed. Plus, the first monkey–human embryos reignite the chimaera debate, and how to curb the spread of COVID-19 vaccine disinformation.
Varje år drabbas flera hundra miljoner människor av en bakterieinfektion i tarmen. Nya fynd, som visar hur tarmen själv kan skilja på bra och dåliga mikrober, kan få betydelse i utvecklingen av behandlingar. Tarmens slemhinna har en stor yta för att maximera upptag av näringsämnen och föda från kosten. Det gör den också sårbar för angrepp från aggressiva tarmmikrober. En studie från forskare vid
Children like junk food. As much as 70% percent of their diet is estimated to come from junk foods. While numerous studies have shown the overall negative impact of junk food, few have focused on its direct developmental effects on children, particularly young children.
Researchers from the Singapore-MIT Alliance for Research and Technology developed a synthetic framework known as theory-based residual neural network (TB-ResNet) to improve individual decision-making analysis used in travel behaviour research. The research explains that data-driven and theory-driven models, which are generally used as separate methods that are conflicting, are actually highly comp
Southeastern Tibet is one of the most glaciated region on the Tibetan Plateau both at present and during the Quaternary. Existing numerical ages of glacial deposits in this region suggest that the oldest glaciation (Guxiang Glaciation) occurred during marine oxygen isotope stage 6 (MIS-6). In this study evidence is presented for an earlier glaciation, Nitong Glaciation, which was dated using elect
Researchers from Osaka University have found that the subliminal presentation of images of one's own face activates a central component of the dopamine reward pathway, thus illuminating the mechanisms behind our powerful ability to automatically prioritize processing of our own face. These findings have important implications for understanding the neural processes involved in automatic self-advant
Researchers discovered, while exploring the photomechanical properties of diarylethene, that under irradiation with UV light the crystal of the compound peels off into micrometer-sized crystals at a world's fastest speed of 260 microseconds. As the material returns to its former molecular structure when exposed to visible light, the exfoliation method positions itself as a candidate for photoactua
Forget the 30,000-foot, big-picture view. When faced with a cutting-edge technological idea, business leaders who approach the idea in more concrete "how" terms—rather than in abstract "why" terms—are less likely to be deterred by its novelty and more likely to recognize its utility, which increases their propensity to invest, according to new research from the Olin Business School at Washington U
A groundbreaking piece of research has called for the tourism sector to urgently address shortcomings in its terrorism risk management—particularly with regard to the threat posed by dynamic 'lone wolf' attacks.
The deadly insurrection at the U.S. Capitol in January exposed the power of social media to influence real-world behavior and incite violence. But many adolescents, who spend more time on social media than all other age groups, have known this for years.
Researchers at Kanazawa University report in the Japan Journal of Nursing Science a study of muscle pump action in the context of chronic lower-limb edema. They found that body posture and exercise habits affect the blood pumping action of muscles in the leg, whereas age generally does not.
University of Washington researchers worked with almost 260 people to understand online disagreements and to develop potential design interventions that could make these discussions more productive and centered around relationship-building.
Solid-matrix catalysts called heterogeneous catalysts are among the most widespread industrial applications in reducing toxic gases, unburned fuel, and particulate matter in the exhaust stream from the combustion chamber. They are also used in energy, chemical, and pharmaceutical sectors, i.e., production of biodiesel, polymers, biomass/waste conversion into valuable products, and many others proc
Varying severity of COVID-19 symptoms in patients is reflected by levels of a chemical biomarker in their body which scientists say could be used to better manage treatments and other interventions, including vaccinations. In a new paper in International Journal of Infectious Diseases, medical experts in Italy and Australia examined levels of a chemical called serum amyloid A (SAA), a protein synt
Selvom det kan se ud, som om USA har haft en bedre vaccinestrategi end EU, er sagen ifølge Lars Holger Ehlers, professor i sundhedsøkonomi, den, at amerikanerne på grund af deres skyhøje dødstal i starten af pandemien blot var først til lave aftaler med vaccineproducenter om levering af vacciner. Derfor får de dem også leveret først.
A COVID-19 vaccine that could provide protection against existing and future strains of the COVID-19 coronavirus, and other coronaviruses, and cost about $1 a dose has shown promising results in early testing.
The objective of this research is to bring to the attention of public health officials, addiction medicine specialists, treatment officials, therapists, and the general public the alarming increase of dangerous toxic adulterants being added to street drugs and their potentially lethal synergistic effects. Also, to provide insights into how these new formulations can have serious pathophysiological
A team of researchers at the OU College of Medicine has published a new study in the journal Gastroenterology, the world's leading publication on GI tract disease, that sheds new light on the ability of pancreatic cancer cells to spread throughout the body. Understanding why metastasis occurs is crucial for developing a therapeutic strategy to stop the spread.
A new Penn State study found that a majority of those surveyed supported mandates that required students and teachers to be vaccinated against COVID-19. However, more people supported broader vaccine mandates that don't specifically include those against COVID-19.
Mens mange i sydstaterne for længst har smidt mundbindet, har USA brugt milliarder af dollar på et vaccineprogram, der formentlig snart vil efterlade COVID-19 i den amerikanske fortid. Tag med på tur fra Florida Keys, over Alabama, til Nashville, Tennessee, og få et indblik i, hvordan den menige amerikaner tænker og handler i en tid domineret af COVID-19.
A team of scientists from Russia studied the role of double-stranded fragments of the maturing RNA and showed that the interaction between distant parts of the RNA can regulate gene expression. The research was published in Nature Communications.
Monolayer crystals, often being referred as 2D crystals or 2D materials, possess the unique characteristic of having a single layer of regular atomic structure. And the more regular the structure is, the higher quality the crystal. In some cases, the atomic structure is repeated to perfection, but most of the time—as is usually the case in nature—there are some flaws.
Researchers discovered, while exploring the photomechanical properties of diarylethene, that under irradiation with UV light the crystal of the compound peels off into micrometer sized crystals at a world's fastest speed of 260 microseconds. As the material returns to its former molecular structure when exposed to visible light, the exfoliation method positions itself as a candidate for photoactua
Credit: Scott Robert Anselmo/Wikimedia Commons All that remains of the Tyrannosaurus rex today is a handful of fossils, but how many of these iconic dinosaurs roamed the Earth? A new analysis from the University of California Berkeley estimates that there were about 20,000 adult Tyrannosaurs at any given time during the Cretaceous period. Add that up over millions of years, and there could easily
We tend to associate AI with science and math, yet it's coming into the art world as well. Photography, in particular, has been a focus of machine learning from the beginning, and for experts and aspiring artists alike, it's achieved some breathtaking results on tiny budgets. This Luminar 4 bundle not only brings award-winning AI to the light table to edit your photos, it includes a suite of add-
Nature Communications, Published online: 19 April 2021; doi:10.1038/s41467-021-22268-z There is frequently a trade-off between plant immunity and growth. Here the authors show that the epigenetic control of CCA1, encoding a core component of the circadian oscillator, simultaneously promotes heterosis for both defense and growth in hybrids under pathogen invasion.
Nature Communications, Published online: 19 April 2021; doi:10.1038/s41467-021-22485-6 The detailed mechanisms of action of bactericidal antibiotics remain unclear. Here, Wong et al. show that these antibiotics induce cytoplasmic condensation through membrane damage and outflow of cytoplasmic contents, as well as accumulation of reactive metabolic by-products and lipid peroxidation, as part of th
Nature Communications, Published online: 19 April 2021; doi:10.1038/s41467-021-22572-8 The endoplasmic reticulum-localized adaptor STING regulates the innate immune response through its ability to sense DNA damage. Here the authors reveal that STING functions as a regulator of cellular ROS homeostasis and tumor cell susceptibility to reactive oxygen dependent, DNA damaging agents.
Nature Communications, Published online: 19 April 2021; doi:10.1038/s41467-021-22488-3 Stimulus feature maps are found in primary visual cortex of many species. Here the authors show color maps in trichromatic primates containing segregated ensembles of neurons with distinct chromatic signatures that associate with cortical modules known as blobs.
Nature Communications, Published online: 19 April 2021; doi:10.1038/s41467-021-22399-3 Alzheimer's disease (AD) is typically associated with hippocampal and cortical pathology, although hippocampal sparing and limbic predominant forms exist. The authors use transcriptomic analysis and neuropathology to identify genes associated with selective hippocampal vulnerability in AD.
Some lawmakers have long argued that public health measures intended to combat Covid-19 — such as mask mandates and business closures — were overwrought and misguided infringements on personal liberties. GOP legislators in several states are now aiming to curb or refine the power to issue such measures.
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.