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US Navy helicopter crashes off San Diego, search underway

08/31/21 10:48 PM

Scanning tunneling microscopes capture images of materials with atomic precision and can be used to manipulate individual molecules or atoms. Researchers have been using the instruments for many years to explore the world of nanoscopic phenomena. A new approach is now creating new possibilities for using the devices to study quantum effects.

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A rare but serious inflammatory condition that affects children who contract COVID-19 produces a distinctive pattern of biomarkers that may help physicians predict disease severity and also aid researchers in developing new treatments, according to a new study.

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A new study shows how a blend of salts in the presence of heat flows may have contributed to the formation of the first self-replicating biomolecules.

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A new linguistic study sheds light on the nature of languages spoken before the written period, using computational modeling to reconstruct the grammar of the 6500-7000 year-old Proto-Indo-European language.

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A structural model of the SARS-CoV-2 spike protein as the virus fuses with host human cells reveals an opportunity to disrupt dynamics and halt transmission.

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Laboratory and retrospective analyses suggest that MMR and Tdap memory T cells are activated by SARS-CoV-2 and decrease COVID-19 severity.

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A new study has revealed that biotechnology could be the missing ingredient in helping cocoa farmers get a better deal for their beans.

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A new study explains the science behind microscale concave interfaces (MCI) -- structures that reflect light to produce beautiful and potentially useful optical phenomena. Future applications of these effects could include aiding autonomous vehicles in recognizing traffic signs, researchers say. Multiple images, including of a sign created using the material, are available.

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B-SOiD is an open source, unsupervised algorithm that can discover and identify behaviors without user input.

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A new family of materials that could result in improved digital information storage and uses less energy may be possible thanks to a team of researchers who demonstrated ferroelectricity in magnesium-substituted zinc oxide.

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A research team investigated whether electrical therapy, coupled with exercise, would show promise in treating tendon disease or ruptures. They found that tendon cell function and repair can be controlled through electrical stimulation from an implantable device powered by body movement.

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Researchers have developed a blood test that, they believe, could one day offer a highly sensitive and inexpensive approach to detect cancer early in people with NF1. The blood test could also help doctors monitor how well patients are responding to treatment for their cancer.

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Researchers identify proteins that drive cancer stem cells. Targeting and suppressing a particular protein called galectin1 could provide a more effective treatment for glioblastoma, in combination with radiation therapy.

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Scientists have uncovered a fascinating new insight into what caused one of the most rapid and dramatic instances of climate change in the history of the Earth.

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Researchers have created a soft, stretchable device that converts movement into electricity and works in both dry and wet environments.

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Researchers combined large sets of real-world solar data and advanced machine learning to study the impacts of severe weather on U.S. solar farms, and sort out what factors affect energy generation.

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Researchers have uncovered a weakness in a key enzyme that solid tumor cancer cells rely on to adapt and survive when oxygen levels are low.

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Plant endophytic microorganisms, especially those growing inside seeds, can survive antimicrobial compounds and have attracted attention for their potential biocatalytic activity. Recently, researchers successfully isolated several strains of endophytic bacteria that survive in high concentrations of antimicrobial resveratrol and piceatannol inside passion fruit seeds and get transmitted to next-generation seedlings. One of the bacteria could convert resveratrol and piceatannol to their respective derivatives. These findings will significantly advance endophyte and biocatalyst research.

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In a move that could one day free the world's countertops from their snarl of charging cords, researchers have developed a system to safely deliver electricity over the air, potentially turning entire buildings into wireless charging zones.

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Using a novel modelling approach, new research reveals the location and intensity of key threats to biodiversity on land and identifies priority areas across the world to help inform conservation decision making at national and local levels.

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Feeling drained after a day of virtual meetings is worse for those who keep their cameras on throughout those meetings, according to new research. The study also shows the effects are often stronger for women and newer employees.

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Fox News Breaking News Alert

Last plane carrying US troops has left Afghanistan after 20 years, US officials say

08/30/21 1:41 PM

Anticipating the increased need for better oxygen concentrators as the fight against COVID-19 rages on, researchers have laid a computational framework to design the most optimal concentrator to filter ambient air and produce oxygen that can scale with patient demand.

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Interviews with Northern California residents reveal that social norms and social support are essential for understanding protective health behaviors during wildfire smoke events -- information that could be leveraged to improve public health outcomes.

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Humans living about 400,000 years ago produced an unprecedented diversity of elephant bone tools, including pointed tools for carving meat and wedge-shaped tools for cracking open large femurs and other long bones.

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As we live and breathe, ancient-looking fish known as bowfin are guarding genetic secrets that that can help unravel humanity's evolutionary history and better understand its health.

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Researchers have discovered a new way to track genetically modified animals using the artificial transgenes they leave behind in the environment. The discovery provides a powerful new tool to locate and manage genetically modified animals that have escaped or been released into the wild.

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Beavers are often translocated to restore populations in areas, reduce their conflicts with humans and to take advantage of their ability to improve ecosystems. However, few studies have accessed the impacts of dispersing beavers, making it difficult to determine best practices for translocations.

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Information on granulocytes sheds light on the mechanisms associated with COVID-19 and other infectious diseases.

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New research demonstrates the beneficial effect of breast milk consumption on cardiovascular health and early cardiovascular development in premature infants.

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With the addition of sensors and enhanced communication tools, providing lightweight, portable power has become even more challenging. New research demonstrated a new approach to turning thermal energy into electricity that could provide compact and efficient power.

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In an effort to understand how the internal state of the body influences the brain's decision-making processes, scientists analyzed the data from a previous study pre-clinical study. They found that two of the brain's decision-making centers contain neurons that may exclusively monitor the body's internal dynamics. Furthermore, a heightened state of arousal appeared to rewire one of the centers by turning some decision-making neurons into internal state monitors.

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The Bernese theoretical astrophysicist Kevin Heng has achieved a rare feat: On paper, he has derived novel solutions to an old mathematical problem needed to calculate light reflections from planets and moons. Now, data can be interpreted in a simple way to understand planetary atmospheres, for example. The new formulae will likely be incorporated into future textbooks.

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Scientists still know little about how opioid overdoses affect the brain and cognition. Researchers found that, while evidence exists to support a link between overdose, cognitive impairment and brain abnormalities, more research is needed in this area.

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Carbon nanotube thread woven into athletic shirts gathered electrocardiogram and heart rate data that matched standard monitors and beat chest-strap monitors. The fibers are flexible and the shirts are machine washable.

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Against infections, tumors and inflammations, immune cells are locally positioned as rapid reaction forces in the organs of the body. On site, they specialize and take on various tasks.

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Judiciously decomposing organic matter from 700 degrees Fahrenheit to 1,200 degrees F, without oxygen -- a process known as pyrolysis -- and retaining nutrients from dairy lagoons can transform manure into a manageable, ecologically friendly biochar fertilizer, according to new research.

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A team of researchers has come up with a new solution to boost the surveillance of designer drug abuse. The team has identified three new urinary biomarkers that could be used to detect consumption of ADB-BUTINACA, an emerging synthetic cannabinoid which is a type of new psychoactive substance. The innovative approach used to identify the biomarkers can be applied to other existing and new synthetic cannabinoids.

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Results suggest that simple measures, such as depression care administered by phone, can make a big difference for patients recovering from heart failure.

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Once it has spread (metastasized), uveal (intraocular or eye) melanoma -- an unusual form of cancer -- has a very high mortality rate. Researchers and doctors show that, in a small group of patients with metastatic uveal melanoma, a new combination treatment can bring about tumor shrinkage and prolonged survival.

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As much as 90% of the risk of a heart attack, stroke, or peripheral arterial disease (PAD) can be explained by smoking, poor eating habits, lack of physical activity, abdominal obesity, high blood pressure, raised blood lipid levels, diabetes, psychosocial factors, or alcohol. These guidelines focus on atherosclerotic cardiovascular disease (CVD), which affects the arteries. As the inside of the arteries become clogged up by fatty deposits, they can no longer supply enough blood to the body. This process is the main cause of heart attacks, strokes, PAD and sudden death where arteries become completely blocked. The most important way to prevent these conditions is to adopt a healthy lifestyle throughout life, especially not smoking, and to treat risk factors.

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New LED technology has potential to benefit firefighters, miners, military, plumbers and households.

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It takes more than athletic talent to play varsity sports in college, at least for most young people, a new study suggests. Researchers found that U.S. high-school athletes were much more likely to play sports in college if they came from higher-income families with well-educated parents and attended wealthier schools.

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In an observational study, researchers report that the combination of casirivimab and imdevimab -- two monoclonal antibody treatments under Food and Drug Administration emergency use authorization -- keep high-risk patients out of the hospital when infected with mild to moderate COVID-19.

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Researchers, looking at the ability of people to sound out words after a stroke, found that knowing which region of the brain was impacted by the stroke could have important implications for helping target rehabilitation efforts.

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What transpires in comedies and cartoons when a character has a devil on one shoulder and an angel on the other is not far off from people's perceptions of the real world, finds a new study.

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Healthy older adults who ate a handful of walnuts (about ½ cup) a day for two years modestly lowered their level of low-density lipoprotein or LDL cholesterol levels. Consuming walnuts daily also reduced the number of LDL particles, a predictor of cardiovascular disease risk. The study explored the effects of a walnut-enriched diet on overall cholesterol in elderly individuals from diverse geographical locations and spanning two years.

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A new study shows that two months after the second Pfizer/Moderna vaccination, antibody response decreases 20 percent in adults with prior cases of COVID-19, and tests how well current vaccines resist emerging variants. The study also showed that prior exposure to SARS-CoV-2 does not guarantee a high level of antibodies, nor does it guarantee a robust antibody response to the first vaccine dose. This directly contradicts the assumption that contracting COVID will naturally make someone immune to re-infection. The findings further support vaccination (and two doses), even for people who have contracted the virus previously.

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Staying home and limiting local travel, supporting access to primary care, and limiting contacts in contagion hubs -- including hospitals, schools, and workplaces -- are strategies that might help reduce COVID-19-related deaths, according to new research that analyzed the first wave of the epidemic in Italy.

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Up to three cups of coffee per day is associated with a lower risk of stroke and fatal heart disease, according to new research.

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Fox News Breaking News Alert

Biden approves Louisiana disaster declaration

08/29/21 9:26 PM

Fox News Breaking News Alert

Worst case scenario unfolding in Louisiana as Hurricane Ida's wrath puts levees to the test

08/29/21 5:28 PM

A new study compares edoxaban anticoagulant with the standard of care in large randomized clinical trial.

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Animals as small and soft as tardigrades seldom have legs and almost never bother walking. But a new study finds that water bears propel themselves through sediment and soil on eight stubby legs, in a manner resembling that of insects 500,000 times their size.

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Researchers discovered that chlorpyrifos, which is banned for use on foods in Canada but widely sprayed on fruits and vegetables in many other parts of the world, slows down the burning of calories in the brown adipose tissue of mice. Reducing this burning of calories, a process known as diet-induced thermogenesis, causes the body to store these extra calories, promoting obesity. Scientists made the discovery after studying 34 commonly used pesticides and herbicides in brown fat cells and testing the effects of chlorpyrifos in mice fed high calorie diets.

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An international team has reported the observation of ghost polaritons, which are a new form of surface waves carrying nanoscale light strongly coupled with material oscillations and featuring highly collimated propagation properties.

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In the largest study performed to date to understand the relationship between habitual physical activity and physical fitness, researchers have found that higher amount of time spent performing exercise (moderate-vigorous physical activity) and low-moderate level activity (steps) and less time spent sedentary, translated to greater physical fitness.

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Sand and gravel are the most mined materials in the world, with between 32 and 50 billion tons extracted globally each year. They are being extracted faster than they can be replaced. But according to a new study, the human and environmental costs of this extraction on lower and middle-income countries have been largely overlooked.

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The importance of the root system for agricultural yields is often underestimated. Whether roots can access water and nutrients effectively also determines the resilience of important crops to drought and climate change. Researchers have discovered and described a mutant in barley: Its roots grow downwards much more sharply than usual. This discovery potentially provides a starting point for breeding more drought-resistant varieties.

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How to design efficient demo areas for urban carbon sequestration? In the latest policy brief research groups focus on the main principles of urban demonstration areas using biochars for carbon sequestration.

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Scientists have discovered that the mass and size of nano-particles can be simultaneously measured by passing the nanoparticles, in their native solution, through an inexpensive and simple mechanical tube.

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Linked Weyl surfaces, a novel type of topological phase that exists in five-dimensional space, have now been experimentally observed. The work provides a unique platform for exploring various topological phases, the transition between them, and the corresponding boundary effects in five dimensions.

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Fox News Breaking News Alert

Ida makes landfall in Louisiana as monster Category 4 hurricane with 150 mph winds

08/29/21 10:08 AM

Fox News Breaking News Alert

Searing images emerge as Biden receives bodies of 11 of 13 service members killed in Kabul attack

08/29/21 9:56 AM

Fox News Breaking News Alert

US carries out airstrike against vehicle bomb in Kabul, US official confirms

08/29/21 7:10 AM

Brown dwarfs are astronomical objects with masses between those of planets and stars. The question of where exactly the limits of their mass lie remains a matter of debate, especially since their constitution is very similar to that of low-mass stars. So how do we know whether we are dealing with a brown dwarf or a very low mass star?

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Fox News Breaking News Alert

Ida strengthens into major Category 4 hurricane overnight ahead of US landfall

08/29/21 3:21 AM

A new study finds that U.S. residents struggle to understand terms frequently used by scientists to describe climate change.

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In a study of rodents, scientists discovered that a part of the brain traditionally thought to control typing the old sequence may also play a critical role in learning the new one. The results suggest that this process involves a delicate balance in the activity of two neighboring neural circuits: one dedicated to new actions and the other to old habits.

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Researchers develop machine learning methods that accurately predict the 3D shapes of drug targets and other important biological molecules, even when only limited data is available.

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What do frog eggs have in common with 'anti-aging' creams? Their success depends on a group of chemical compounds called retinoids, which are capable of generating and re-generating tissues. A new study in plants shows that retinoids' tissue-generating capacities are also responsible for the appropriate development of roots.

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Skin electronics require stretchable conductors that satisfy metal-like conductivity, high stretchability, ultrathin thickness, and ease of patternability, but it is challenging to achieve these characteristics simultaneously. The researchers developed a new float assembly method to fabricate a nanomembrane that satisfies all these requirements simultaneously. The exceptional material properties are attributed to its unique cross-sectional structure in which a monolayer of compactly assembled nanomaterials is partially embedded in an ultrathin elastomer membrane.

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When we smell food, we are more likely to eat -- but new findings suggest eating food also impacts our sense of smell, which could bias what we eat next. Imaging shows that brain's response to odors similar to a recent meal is less 'food-like' than its response to a different food odor. Interplay between smell and food intake may have evolutionary benefit in helping humans diversify diet

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The phenomenon of superconductivity, providing current transmission without dissipation and a host of unique magnetic properties arising from macroscopic quantum coherence, was first discovered over a century ago. It was not understood until 1957, after which it quickly became clear that superconductors could in principle exist with a wide variety of the fundamental characteristic often referred to as the order parameter. Until the late 1970's, however, all superconductors found experimentally had the same class of order parameter. Since then many aspects of the expected variety of order parameters have been discovered, but one surprising fact remained.

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Setting a price just below a round number ($39.99 instead of $40) may lead consumers into thinking a product is less expensive than it really is -- but it can sometimes backfire on sellers, a new study shows.

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Fine particle pollution may be one reason why Black women have double the risk of developing Alzheimer's than white women, suggests new research. Data shows that older people are more likely to develop dementia if they live in locations with high PM2.5, and African American populations are more likely to live in neighborhoods near polluting facilities. Even when controlling for other risk factors, this study found that Black women still had roughly two times greater a risk of developing Alzheimer's disease than white women, and it also found that they had higher exposure to PM2.5.

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Roe deer are among the few mammals whose embryos go into a particularly long period of dormancy. Using modern molecular methods, researchers have shown for the first time what exactly happens in the embryo during this phase. They have identified signals that control the embryo`s awakening.

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Academics have been monitoring the Lyme Bay Marine Protected area using underwater cameras and other techniques since 2008, but this is the first known study to examine an MPA's response and resilience in the face of extreme storms.

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Around 650 million years ago, the Earth entered into the Marinoan glaciation that saw the entire planet freeze. The 'Snowball Earth' impeded the evolution of life. But as it warmed, biotic life began to flourish. A research team has now analyzed rock samples from China to tell us more about this transition.

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Using a supercomputer simulation, a research team has succeeded in following the development of a galaxy over a span of 13.8 billion years. The study shows how, due to interstellar frontal collisions, young and chaotic galaxies over time mature into spiral galaxies such as the Milky Way.

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A study provides some of the first evidence that climate change and drought are shifting the range of infectious disease in forests suffering from white pine blister rust disease.

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Researchers have found that while playing musical instruments can emit the same levels of potentially COVID-laden airborne particles as singing, simple safety measures, such as masking instruments, social distancing and implementing time limits, significantly reduce this risk.

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Scientists from St. Jude Children's Research Hospital and the International Society of Paediatric Oncology report results from the Global Registry of COVID-19 and Childhood Cancer.

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People often get sicker as they grow older, but new research finds that the impact of a person's genes on their risk of getting sick actually wanes with age.

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A team of researchers has identified measures we take in order to skirt having to exert self-control in our daily lives -- findings that offer new insights into what motivates human behavior.

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COVID-19 vaccines remain effective, but their potency has diminished in recent months, according to a nationwide U.S. study at eight sites.

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In a new study, researchers have measured the number of pathogens and antibiotic resistance genes in backyard and commercial compost.

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All-solid-state batteries are expected to replace conventional batteries with a liquid electrolyte thanks to their improved safety, durability, and capacity. However, the electric double layer (EDL) effect is a phenomenon that is suspected to be a hindrance to battery performance and is difficult to measure. To tackle this issue, scientists have developed a new methodology to explore the EDL using diamond-based field-effect transistors, paving the way to better solid-state ionic devices and batteries.

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The world's oceans are becoming increasingly stressful places for marine life, and experts are working to understand what this means for the future. From rising temperatures; to acidification as more carbon enters the waters; to changes in the currents; the challenges are multifaceted, making experiments and projections difficult. Copepods are small marine animals that are abundant, widely dispersed, and serve as major structural components of the ocean's food web. A team of scientists from the University of Connecticut, Jinan University in China, and the University of Vermont have found that a species of copepod called Acartia tonsa can cope with climate change, but at a price. Their research was published today in Nature Climate Change.

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As climate change continues to do more damage to our planet, scientists are working to find more efficient and cleaner ways to power the earth. One appealing alternative to common petrochemical processes that generate significant greenhouse gases and other waste products could come from biological systems. Recent work has led to advances in understanding of biochemical pathways and increased rates of chemical production by biological systems.

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From seismic surveys and Navy sonar to fisheries and shipping, many human activities in the ocean environment cause short-term changes in the behaviors of marine mammals. A longstanding challenge for scientists and regulatory agencies alike has been to understand the biological significance of those changes in terms of their overall impact on affected populations of animals. A new study provides a comprehensive framework for conducting this type of assessment.

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Individuals with COVID-19 are most likely to spread the virus to close contacts two days before the onset of symptoms to three days after symptoms appear, and the risk of transmission is highest when patients had mild or moderate disease severity, according to a new study.

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A laboratory study finds that blood serum drawn from people previously vaccinated or naturally infected show 'significantly reduced' defense against two variants of the novel coronavirus SARS-CoV-2. Researchers said that their findings emphasize the importance of vaccinations combined with maintaining public health measures to cut off the spread of the SARS-CoV-2 virus.

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Safe passages for species adapting to climate change aren't always being protected, a new study warns.

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Risk for heart disease does not look the same on the genetic level for different population groups, report an international team of researchers. The studY begins to outline gene activity patterns that could serve as early warning indicators for cardiovascular disease.

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New research will detect and evaluate the vulnerability of global tropical rainforests by focusing specifically on threats from changes to land-use and climate.

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A human space mission would be viable if it doesn't exceed four years, an international research team concludes in new research.

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Fox News Breaking News Alert

Number of US service members killed in Afghanistan rises to 12; most are Marines

08/26/21 11:56 AM

COVID-19 survivors report significantly higher symptoms of post-traumatic stress, and these symptoms are associated with changes to the brain's connectivity, according to a new study.

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An analysis of data from 1.5 million people has identified 579 locations in the genome associated with a predisposition to different behaviors and disorders related to self-regulation, including addiction and child behavioral problems.

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An interdisciplinary team studying neurogenetics, neural networks, and neurophysiology has revealed how dysfunctions in even a small percentage of cells can cause disorder across the entire brain.

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Researchers have shown how restoring levels of the protein DAXX and a large group of similar proteins prevents the misfolding of the rogue proteins known to drive Alzheimer's and other neurodegenerative diseases, as well as certain mutations that contribute to cancers.

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Researchers have found new genetic risk factors for osteoarthritis and identified novel drug targets. Their finding is a milestone towards the development of the first ever curative treatment for osteoarthritis.

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A new study supports the FDA recommendation that patients keep any consumer electronic devices that may create magnetic interference, including cell phones and smart watches, at least six inches away from implanted medical devices, in particular pacemakers and cardiac defibrillators.

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Randomized clinical trial shows that engaging in virtual reality can significantly reduce pain and anxiety in children undergoing intravenous catheter placement.

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Mantis shrimp pack the strongest punch of any creature in the animal kingdom. How mantis shrimp produce these deadly, ultra-fast movements has long fascinated biologists. Now, an interdisciplinary team of roboticists, engineers and biologists have modeled the mechanics of the mantis shrimp's punch and built a robot that mimics the movement. The research sheds light on the biology of these pugnacious crustaceans and paves the way for small but mighty robotic devices.

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New research offers insight into how to treat endometriosis. The researchers performed genetic analyses of humans and rhesus macaques to identify a specific gene, NPSR1, that increases risk of suffering from endometriosis. The results reveal a potential new nonhormonal drug target that may lead to improved therapy.

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A Wistar study shows the tumor suppressor Parkin, whose levels are reduced in different cancer types, causes acute metabolic and oxidative stress, suppresses mitochondrial trafficking, and blocks tumor cell movement, reducing primary and metastatic tumor growth.

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Recent archaeogenetic studies have shown that human movements like migrations and expansions played a major role in driving the spread of cultures and genes in ancient Europe. However, it is only now with detailed regional studies and dense sampling that researchers start to better understand the magnitude, rate and social implications of these changes.

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A new luminescent sensor can detect terbium, a valuable rare earth element used in smart phone displays, from complex environmental samples like acid mine waste.

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A new study suggests athletes with a history of concussion may show more brain injury from a later concussion, particularly in middle regions of the brain that are more susceptible to damage, when compared to athletes with no history of concussion.

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People whose scores on a dementia risk test indicated a less brain-healthy lifestyle, including smoking, high blood pressure and a poor diet, may also have the following: lower scores on thinking skills tests, more changes on brain scans and a higher risk of cognitive impairment, according to a new study.

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Knowing where cold water is likely to stay cold is critical for conservation. But "cold" is more than just a number on a thermometer. Dams do not adequately support cold-water ecosystems, finds a new study.

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For home gardeners and farmers, herbivorous insects present a major threat. The predator insects that feed on these bugs emit odors that pests can sense, which changes the pests' behavior and physiology to avoid being eaten. With bugs becoming more resistant to traditional pesticides, researchers now report they have bottled the 'smell of fear' produced by predators to repel and disrupt insects naturally.

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An international study found that intact tropical mountain (or montane) forests in Africa store around 150 tons of carbon per hectare. This means that keeping a hectare of forest standing saves CO2 emissions equivalent to powering 100 homes with electricity for one year.

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Pulling heat-trapping carbon dioxide out of the air and turning it into useful products, a concept called carbon capture and utilization, has the potential to offer both environmental and economic benefits.

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A new study demonstrates how quickly COVID-19 can spread through a household, and provides insight into how and why communities of color have suffered disproportionately from the pandemic.

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A fossil acquired in a police raid has turned out to be one of the best-preserved flying reptiles ever found, according to a new study.

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Carbon dioxide from the atmosphere dissolves in waterways, forming bicarbonate ions and other compounds that change water chemistry, with possible harmful effects on aquatic organisms. In addition, bicarbonate can reenter the atmosphere as carbon dioxide later. Now, researchers have developed tiny 'nanojars' that split bicarbonate into carbonate and capture it, as well as certain toxic anions, so they can be removed from water.

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A new study analyzes the association between more than 100 environmental exposures and the 'epigenetic clock' of over 1,000 children in six European countries.

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New research suggests that men and women worry about the impact of COVID-19 in far different ways. For example, men are more likely to be concerned about financial consequences from COVID-19 while women report greater fear and more negative expectations about health-related outcomes.

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Tyrannosaurus rex, the fearsome predator that once roamed what is now western North America, appears to have had an East Coast cousin. A new study describes two dinosaurs that inhabited Appalachia -- a once isolated land mass that today composes much of the eastern United States -- about 85 million years ago: an herbivorous duck-billed hadrosaur and a carnivorous tyrannosaur.

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A new analysis suggests that U.S. workers in industries that expose them to weather conditions work fewer hours per day when temperatures surpass 90 degrees Fahrenheit -- but only during periods of economic growth.

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A beam of light can only be seen when it hits matter particles and is scattered or reflected by them. In a vacuum, however, it is invisible. Physicists have now developed a method that allows laser beams to be visualized even under these conditions. The method makes it easier to perform the ultra-precise laser alignment required to manipulate individual atoms.

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The Codex Telleriano Remensis, created in the 16th century in Mexico, depicts earthquakes in pictograms that are the first written evidence of earthquakes in the Americas in pre-Hispanic times, according to a pair of researchers who have systematically studied the country's historical earthquakes.

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Facial recognition is now common in adults, but researchers have developed software that can reliably detect a premature baby's face in an incubator and remotely monitor its heart and breathing rates - rivaling ECG machines and even outperforming them. This is the first step in using non-contact monitoring in neonatal wards, avoiding skin tearing and potential infections from adhesive pads.

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Unrealistic and flawed scientific experiments mean the true impact of nitrogen pollution on the environment is unknownremains poorly understood, a new study warns.

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A new study has shown that the tumor-inhibiting gene TET2 is silenced in a large fraction of cases of acute lymphoblastic leukemia (ALL) in children. The scientists show that the gene can be reactivated by treatment with an existing drug, 5-azacytidine. The results suggest that 5-azacytidine may function as targeted therapy for ALL in children.

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New research has revealed a new fundamental feature of aggressive B-cell lymphomas which could open the door to further research into early detection and treatment of the disease.

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Certain proteins may have evolved to tamp down 'cheating' during meiosis, the cell-division process that gives rise to eggs and sperm. While chromosomes can tip the scales in their favor of winding up in an egg, the team's new work identifies a mechanism that keeps the odds closer to 50-50, possibly reducing the likelihood that chromosomal abnormalities will arise during egg production.

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New research has confirmed that keeping car windows open to draw in fresh air is key to reducing the risk of contracting the virus in vehicle environments -- but there are trade-offs.

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The breast milk of lactating mothers vaccinated against COVID-19 contains a significant supply of antibodies that may help protect nursing infants from the illness, according to new research.

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New research shows that keeping busy with a variety of activities can elicit both positive and negative emotions, and some of the relationship could depend on your age. A new study finds that engaging in diverse daily activities is associated with a diverse set of emotions.

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Stingless bees are found throughout tropical and subtropical parts of the world and produce significantly less honey than their European honey bee counterparts (Apis mellifera) which are the world's major honey production species. However, stingless bee honey is highly prized as a specialty food, noted in Indigenous cultures for its medicinal properties, and attracts a high price. Now new research has identified that the Tetragonula carbonaria stingless bee, which is native to Australia, is a powerhouse at converting regular table sugar into the rare low GI sugar trehalulose, found only in stingless bee honey and not as a major component in any other food. Researchers also identified that the bees do this within their gut - the trehalulose does not result from native flora or unique resins that form the pots stingless bees store their honey in.

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Hydrogen produced from renewable energy sources with the help of electric power is deemed a key to the energy transition: It can be used to chemically store wind and solar energy in a CO2-neutral way. Researchers have studied water electrolysis processes on the surface of an iridium oxide catalyst.

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Urbanization is one of the most drastic forms of land-use change. Its negative consequences on biodiversity have been studied extensively in countries like Germany. However, there has been less research in tropical regions from the Global South. Researchers investigated the effects on farmland bird communities in Bangalore and found that urbanization filters out species with certain traits, such as insect-eating birds, which are important for pest control.

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A pair of scale model structures subjected to simulated storm conditions in an lab responded like real wood-frame homes during recent hurricanes, suggesting model buildings can yield important design information for low-lying areas vulnerable to storm surges and big waves.

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