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Science Daily: News Articles in Science, Health, Environment Technology

Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate environment, computers, engineering, health medicine, math, physics, psychology, technology, and more -- from the world's leading universities and research organizations. id=metasummary ScienceDaily -- the Internet's premier science news web site -- brings you the latest discoveries in science, health & medicine, the environment, space, technology, and computers, from the world's leading universities and research institutions. Updated several times a day, Science Daily also offers free search of its archive of more than 80,000 stories, as well as related articles, images, videos, books, and journal references in hundreds of different topics, including astronomy, biology, chemistry, engineering, geology, mathematics, physics, and more.



Lakes are changing worldwide: Human activities to blame  

Worldwide, lake temperatures are rising and seasonal ice cover is shorter and thiner. This effects lake ecosystems, drinking water supply and fishing. International research now shows that these global changes in lake temperature and ice cover are not due to natural climate variability. They can only be explained by massive greenhouse gas emissions since the Industrial Revolution. To demonstrate this, the team has developed multiple computer simulations with models of lakes on a global scale, on

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2021-10-18 11:24:56



Mammalian motivation circuits: Maybe they're born with it  

Are animals born to seek rewards or avoid punishment? Researchers found that mice have pre-programmed neurons and circuits that process 'positive' and 'negative' stimuli. Their findings may be useful for studying neurological and psychiatric disorders in humans.

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2021-10-18 11:24:53



Developing a treatment for vision loss through transplant of photoreceptor precursors  

A recent study examining the therapeutic potential of photoreceptor precursors, derived from clinically compliant induced pluripotent stem cells (iPSC), has demonstrated the safety and therapeutic potential of clinically compliant iPSC-derived photoreceptor precursors as a cell replacement source for future clinical trials.

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2021-10-18 10:59:30



Scientists discover method to boost energy generation from microalgae  

The variety of humble algae that cover the surface of ponds and seas could hold the key to boosting the efficiency of artificial photosynthesis, allowing scientists to produce more energy and lower waste in the process. A study showed how encasing algae protein in liquid droplets can dramatically enhance the algae's light-harvesting and energy-conversion properties by up to three times. This energy is produced as the algae undergoes photosynthesis, which is the process used by plants, algae and

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2021-10-18 10:59:26



Aging breast tissue could set the stage for invasive breast cancer  

A new study examines how the extracellular matrix (ECM) -- an underlying network of molecules and proteins that provide the structure for tissue growth -- can trigger invasive cancer-related genes.

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2021-10-18 10:59:20



Artificial chromosomes study sheds light on gene therapies  

A research team led by Dr Karen Wing Yee YUEN, Associate Professor from the School of Biological Sciences at the University of Hong Kong (HKU), revealed the mechanism of artificial chromosome (AC) formation in the embryos of the model organism Caenorhabditis elegans, a 1-mm long, transparent nematode.

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2021-10-18 10:00:40



Delicious discoveries: Scientists just described a new onion species from the Himalaya  

While the onion, garlic, scallion, shallot and chives have been on our plates for centuries, becoming staple foods around the world, their group, the genus Allium, seems to be a long way from running out of surprises. Recently, a group of researchers from India described a new onion species from the western Himalaya region, long known to the locals as 'jambu' and 'phran.'

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2021-10-18 08:23:48



Challenges and lessons learned caring for diverse, vulnerable populations in the ER  

Interviews with two dozen emergency medicine residents in academic medical center found most placed importance on learning to deliver high-quality care to diverse populations. However, many did not feel their programs made enough effort to incorporate effective cultural competency education into the curriculum.

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2021-10-18 08:23:46



Ecology of fishing jaguars: Rare social interactions  

Scientists have gained new insights into the diet, population density and social interactions of a group of Brazilian jaguars.

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2021-10-18 08:23:43



Plant-eating lizards on the cusp of tooth evolution  

Researchers found that complex teeth, a hallmark of mammals, also evolved several times in reptiles, prompting the evolutionary success of plant-eating lizards. However, contrary to mammals their tooth evolution was not unidirectional.

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2021-10-15 18:43:14



Our brains have a 'fingerprint' too  

An EPFL scientist has pinpointed the signs of brain activity that make up our brain fingerprint, which -- like our regular fingerprint -- is unique.

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2021-10-15 18:42:54



Scientists find evidence the early solar system harbored a gap between its inner and outer regions  

In the early solar system, a 'protoplanetary disk' of dust and gas rotated around the sun and eventually coalesced into the planets we know today. A new study suggests that a mysterious gap existed within this disk around 4.567 billion years ago, and likely shaped the composition of the solar system's infant planets.

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2021-10-15 18:42:50



Plankton head polewards  

Ocean warming caused by anthropogenic greenhouse gas emissions will prompt many species of marine plankton to seek out new habitats, in some cases as a matter of survival. Researchers expect many organisms to head to the poles and form new communities -- with unforeseeable consequences for marine food webs.

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2021-10-15 18:42:47



Accelerating the discovery of new materials for 3D printing  

A new data-driven system accelerates the process of discovering 3D printing materials that have multiple mechanical properties.

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2021-10-15 18:42:37



A map of mouse brain metabolism in aging  

Researchers have created an atlas of metabolites in the mouse brain. The dataset includes 1,547 different molecules across 10 brain regions in male and female laboratory mice from adolescence through adulthood and into advanced old age. The complete dataset is publicly available online.

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2021-10-15 18:42:33



Ultrafast magnetism: heating magnets, freezing time  

Magnetic solids can be demagnetized quickly with a short laser pulse, and there are already so-called HAMR (Heat Assisted Magnetic Recording) memories on the market that function according to this principle. However, the microscopic mechanisms of ultrafast demagnetization remain unclear. Now, a team has developed a new method at BESSY II to quantify one of these mechanisms and applied it to the rare-earth element Gadolinium, whose magnetic properties are caused by electrons on both the 4f and th

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2021-10-15 18:42:22



Behavior resembling human ADHD seen in dogs  

A study involving some 11,000 dogs demonstrated that the gender, age and breed of the dog, as well as any behavioral problems and certain environmental factors, are connected to hyperactive and impulsive behavior and inattention (ADHD).

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2021-10-15 18:42:15



Flu and heart disease: The surprising connection that should convince you to schedule your shot  

Patients who have cardiovascular disease are at increased risk of serious complications from the flu, according to a new study. The study found that not only are traditional flu-related outcomes worse among some patients with CVD, but infection in those patients also is associated with an increased risk of cardiovascular events. Getting the influenza vaccine, however, substantially reduces cardiovascular risks.

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2021-10-15 18:42:12



Why do we remember stressful experiences better?  

When the brain stores memories of objects, it creates a characteristic pattern of activity for each of them. Stress changes such memory traces.

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2021-10-15 18:42:09



How bacteria create a piggy bank for the lean times: Basic science discovery could lead to improved biomaterial production  

Bacteria can store extra resources for the lean times. It's a bit like keeping a piggy bank or carrying a backup battery pack. One important reserve is known as cyanophycin granules, which were first noticed by an Italian scientist about 150 years ago. He saw big, dark splotches in the cells of the blue-green algae (cyanobacteria) he was studying without understanding either what they were or their purpose. Since then, scientists have realized that cyanophycin was made of a natural green biopoly

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2021-10-15 13:32:15



Key protein linked to appetite and obesity in mice  

Researchers have identified a protein that plays a key role in how the brain regulates appetite and metabolism. Loss of the protein, XRN1, from the forebrain, resulted in obese mice with an insatiable appetite, according to a new study.

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2021-10-15 13:32:12



Researchers find few adverse health effects in wildlife exposed to low levels of radiation from the Fukushima nuclear accident  

Between 2016 and 2018, researchers studied wild boar and rat snakes across a range of radiation exposures in Fukushima. The team examined biomarkers of DNA damage and stress and did not find any significant adverse health effects.

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2021-10-15 11:12:10



Cellular environments shape molecular architecture  

An important cellular structure called the nuclear pore complex (NPC) has larger dimensions than previously thought. A research team made this discovery using cryo-focused ion beam (cryo-FIB) milling and cryo-electron tomography (cryo-ET) -- which allowed them to analyze the NPC directly inside cells.

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2021-10-15 11:12:07



How to program DNA robots to poke and prod cell membranes  

A discovery of how to build little blocks out of DNA and get them to stick to lipids has implications for biosensing and mRNA vaccines.

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2021-10-15 11:12:04



Discovery of new role for the brain's immune cells could have Alzheimer's implications  

The immune cells, known as microglia, also help regulate blood flow and maintain the brain's critical blood vessels, researchers have discovered. The findings may prove important in cognitive decline, dementia and stroke, among other conditions linked to diseases of the brain's small vessels.

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2021-10-15 09:48:06



Contraceptive pill can reduce type 2 diabetes risk in women with polycystic ovary syndrome  

A study has revealed for the first time that the contraceptive pill can reduce the risk of type 2 diabetes by over a quarter in women with polycystic ovary syndrome (PCOS). The research findings also show that women with PCOS have twice the risk of developing type 2 diabetes or pre-diabetes (dysglycemia) -- highlighting the urgent need to find treatments to reduce this risk.

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2021-10-15 09:47:30



Intelligent optical chip to improve telecommunications  

Scientists have developed a smart pulse-shaper integrated on a chip.

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2021-10-15 09:47:22



How highly processed foods harm memory in the aging brain  

Four weeks on a diet of highly processed food led to a strong inflammatory response in the brains of aging rats that was accompanied by behavioral signs of memory loss, a new study has found. Researchers also found that supplementing the processed diet with the omega-3 fatty acid DHA prevented memory problems and reduced the inflammatory effects almost entirely in older rats.

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2021-10-14 17:27:53



Gel fights drug-resistant bacteria and induces body's natural immune defense  

In the fight against multidrug-resistant bacteria, scientists have developed a new kind of antibiotic-free protection for wounds that kills drug-resistant bacteria and induces the body's own immune responses to fight infections.

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2021-10-14 17:27:50



Plant-based jet fuel could reduce emissions by 68%  

Replacing petroleum-based aviation fuel with sustainable aviation fuel derived from a type of mustard plant can reduce carbon emissions by up to 68%, according to new research.

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2021-10-14 17:27:47



Study could pave way for creating safer opioids  

Researchers may have an uncovered new answers on how to create safer opioids. Design a new opioid to bypass the part of brain that feels pleasure, but retain the analgesic properties, which make opioids one of the most effective pain relievers. Researchers looked at how opioids may have become so widely abused.

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2021-10-14 17:27:32



Monitoring glucose levels, no needles required  

Noninvasive glucose monitoring devices are not currently commercially available in the United States, so people with diabetes must collect blood samples or use sensors embedded under the skin to measure their blood sugar levels. Now, with a new wearable device less intrusive glucose monitoring could become the norm.

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2021-10-14 17:27:30



Molecular atlas of small cell lung cancer reveals unusual cell type that could explain why it's so aggressive  

Stem-like cells that make up only a tiny fraction of the total cells in a lung tumor could be the key to stopping the disease's deadly spread, say researchers.

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2021-10-14 17:27:26



How long can fiber reinforced polymer sustain concrete structures? Scientists answer  

One potential cost-effective way to sustain ageing concrete subjected to harsh environmental conditions is to externally coat the material with fiber reinforced polymer composites. But few studies have looked at the durability of such strengthening. Now, researchers from Korea and the USA conduct a 13-year long experiment to find out.

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2021-10-14 17:27:23



New model to assess for flood hazards  

A new article presents a new methodology to create a watershed-scale flood model based on LiDAR data.

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2021-10-14 17:27:20



New theories and materials aid the transition to clean energy  

Scientists have explored different approaches to catalysis, a chemical process that plays an essential role in biological reactions, as well as many industrial applications. Chemical catalysts have been used in a variety of human applications, ranging from pharmaceutical development to biodegradable plastics and environmentally safe fertilizers. They may also advance the development of green energy solutions to address the climate crisis.

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2021-10-14 17:27:15



How the brain ignores distracting information to coordinate movements  

Researchers have discovered how neurons in a small area of the mammalian brain help filter distracting or disruptive signals -- specifically from the hands -- to coordinate dexterous movements. Their results may hold lessons in how the brain filters other sensory information as well.

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2021-10-14 15:41:31



Genes play key role in exercise outcomes  

A new study has found that genes can explain up to 72% of the difference in outcome between people after a specific fitness exercise. The research involved data from 3,012 adults and has identified a number of specific genes which influence the outcomes of different physical activities.

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2021-10-14 14:20:32



The planet does not fall far from the star  

A compositional link between planets and their respective host star has long been assumed in astronomy. Scientists now deliver empirical evidence to support the assumption -- and partly contradict it at the same time.

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2021-10-14 14:20:29



New metalens focuses light with ultra-deep holes  

Researchers developed a metasurface that uses very deep, very narrow holes, rather than very tall pillars, to focus light to a single spot.

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2021-10-14 14:20:24



Pollution's impact on child health  

Air pollution is known to harm children's respiratory health, but its specific impacts on infection rates have remained unclear. A new analysis provides evidence of a link between the two in low-income settings, and indicates one industry may play an outsized role in the problem.

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2021-10-14 14:20:21



'Broken heart' syndrome is on the rise in women  

Researchers have discovered two alarming trends in Takotsubo cardiomyopathy -- also known as 'broken heart' syndrome -- a condition that is often triggered by stress or loss and can lead to long-term heart injury and impaired heart function.

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2021-10-14 14:20:15



Big differences found in male and female jojoba plant sex genes  

Hot desert sex has resulted in major genetic differences between male and female jojoba plants -- one of only 6 percent of plants that require a male and female plant to reproduce. New research suggests male and female jojoba plants have diverged so much, that the jojoba plant has more novel sex genes than any other known living organism. The discovery may help researchers develop a DNA test to identify male and female jojoba plants, which cannot be distinguished from each other as seedlings - a

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2021-10-14 14:20:07



Aided by stem cells, a lizard regenerates a perfect tail for first time in more than 250 million years  

Lizards can regrow severed tails, making them the closest relative to humans that can regenerate a lost appendage. But in lieu of the original tail that includes a spinal column and nerves, the replacement structure is an imperfect cartilage tube. Now, a study describes how stem cells can help lizards regenerate better tails.

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2021-10-14 14:19:58



Early modern human from Southeast Asia adapted to a rainforest environment  

Although there has been evidence of our species living in rainforest regions in Southeast Asia from at least 70,000 years ago, the poor preservation of organic material in these regions limits how much we know about their diet and ecological adaptations to these habitats. An international team of scientists has now applied a new method to investigate the diet of fossil humans: the analysis of stable zinc isotopes from tooth enamel. This method proves particularly helpful to learn whether prehist

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2021-10-14 14:19:55



Expansion of wind and solar power too slow to stop climate change  

The production of renewable energy is increasing every year. But after analyzing the growth rates of wind and solar power in 60 countries, researchers conclude that virtually no country is moving sufficiently fast to avoid global warming of 1.5°C or even 2°C. The article "National growth dynamics of wind and solar power compared to the growth required for global climate targets" was published in the journal Nature Energy, written by Aleh Cherp, Vadim Vinichenko, Jale Tosun, Joel A.Gordon and ...

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2021-10-14 14:19:49



Scientists develop fully solar-driven autonomous chemical mini-plant  

Scientists have developed a fully operational standalone solar-powered mini-reactor which offers the potential for the production of fine chemicals in remote locations on Earth, and possibly even on Mars.

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2021-10-14 14:19:41



Study discovers unique brain signature of intimate partner aggression  

A new study used functional magnetic resonance imaging to examine the brain activity of 51 male-female romantic couples as they experienced intimate partner aggression in real time. They found that aggression toward intimate partners was associated with aberrant activity in the brain's medial prefrontal cortex, or MPFC, which has many functions, but among them is the ability to foster perceptions of closeness with and value of other people.

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2021-10-14 14:19:23



New technique helps researchers understand how acid damages teeth  

Researchers have developed a new technique to improve understanding of how acid damages teeth at the microstructural level.

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2021-10-14 14:19:19



Mammals on the menu: Snake dietary diversity exploded after mass extinction 66 million years ago  

Modern snakes evolved from ancestors that lived side by side with the dinosaurs and that likely fed mainly on insects and lizards.

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2021-10-14 14:19:02



Mito warriors: Scientists discover how T cell assassins reload their weapons to kill and kill again  

Researchers have discovered how T cells -- an important component of our immune system -- are able keep on killing as they hunt down and kill cancer cells, repeatedly reloading their toxic weapons.

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2021-10-14 14:18:50



Study explores the decisions made by physicians in the delivery room, and why they may be making them  

Clinical decisions made in the delivery setting as to whether to employ vaginal delivery or cesarean section are often made under high pressure, and with great uncertainty, and have serious consequences for mother and baby. Now, a new study of electronic health records spanning 86,000 deliveries suggests that if their prior patient had complications in one delivery mode, a physician will be more likely to switch to the other -- and likely inappropriate -- delivery mode for the subsequent patient

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2021-10-14 14:18:44



Filling the gaps: Connecting genes to diseases through proteins  

Hundreds of connections between different human diseases have been uncovered through their shared origin in our genome, challenging the categorization of diseases by organ, symptoms, or clinical specialty. A new study has generated data on thousands of proteins circulating in our blood and combined this with genetic data to produce a map showing how genetic differences that affect these proteins link together seemingly diverse as well as related diseases.

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2021-10-14 14:18:39



Many US adults worry about facial image data in healthcare settings  

Uses of facial images and facial recognition technologies -- to unlock a phone or in airport security -- are becoming increasingly common in everyday life. But how do people feel about using such data in healthcare and biomedical research?

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2021-10-14 14:18:36



Shedding light on mysterious jellyfish diets  

Jellyfish have voracious appetites, and they aren't considered the most selective eaters. Almost anything that gets stuck to their tentacles winds up in the gelatinous sack that they use to digest their food. This 'take what comes' feeding strategy has clouded our understanding of which foods jellyfish survive on and how they fit in food webs. However, new research using two biochemical tools, stable isotopes and fatty acids, are beginning to unlocking the secrets of jellyfish feeding.

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2021-10-14 13:39:35



Brain 'noise' may hold the keys to psychiatric treatment efficacy  

It remains a central challenge in psychiatry to reliably judge whether a patient will respond to treatment. Researchers now show that moment-to-moment fluctuations in brain activity can reliably predict whether patients with social anxiety disorder will be receptive to cognitive behavioral therapy (CBT).

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2021-10-14 13:12:27



The gene behind an unusual form of Cushing's Syndrome  

The molecular causes of a particular type of food-dependent Cushing's Syndrome, a rare disease of the adrenal glands, are finally revealed.

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2021-10-14 13:12:24



Hedges reduce pollution at breathing height in shallow street canyons, study confirms  

An extensive field study into air quality along a road lined with buildings has confirmed that hedges can help mitigate traffic-related pollution up to 1.7m, reducing the pollutants breathed by pedestrians, young children and cyclists.

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2021-10-14 13:12:22



By 2500 Earth could be alien to humans  

To fully grasp and plan for climate impacts under any scenario, researchers and policymakers must look well beyond the 2100 benchmark. Unless CO2 emissions drop significantly, global warming by 2500 will make the Amazon barren, the American Midwest tropical, and India too hot to live in, according to a team of international scientists.

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2021-10-14 13:12:14



The Southern Ocean's role in driving global carbon cycle stronger than expected  

Based on the most comprehensive winter study to date, conducted in the Southern Ocean during July and August 2017, scientists were able to show that phytoplankton were indeed active during the icy cold and dark winter months. These findings are important for predictive global climate models, which currently are based predominantly on spring and summer seasons. With the addition of data from winter, the models can now better represent the atmosphere-to-ocean carbon transfer cycle over seasons. Fo

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2021-10-14 13:12:09



Evidence of superionic ice provides new insights into unusual magnetic fields of Uranus and Neptune  

Not all ice is the same. The solid form of water comes in more than a dozen different - sometimes more, sometimes less crystalline - structures, depending on the conditions of pressure and temperature in the environment. Superionic ice is a special crystalline form, half solid, half liquid - and electrically conductive. Its existence has been predicted on the basis of various models and has already been observed on several occasions under - very extreme - laboratory conditions. New results provi

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2021-10-14 13:12:03



Artificial intelligence helps to find new natural substances  

More than a third of all medicines available today are based on active substances from nature and a research team has developed a procedure to identify small active substance molecules much more quickly and easily.

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2021-10-14 13:12:01



Scientists discover large rift in the Arctic's last bastion of thick sea ice  

In May 2020, a hole a little smaller than the state of Rhode Island opened up for two weeks in the Last Ice Area, a million-square-kilometer patch of sea ice north of Greenland and Ellesmere Island that's expected to be the last refuge of ice in a rapidly warming Arctic. The polynya is the first one that has been identified in this part of the Last Ice Area.

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2021-10-14 13:11:58



Climate change threatens hydropower energy security in the Amazon basin  

Hydropower is the dominant source of energy in the Amazon region, the world's largest river basin and a hotspot for future hydropower development. However, a new study warns that in the coming decades, climate change-driven reductions in precipitation and river discharge will diminish the Amazon's hydropower capacity.

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2021-10-14 13:11:54



Bridging optics and electronics  

Researchers have developed a simple spatial light modulator made from gold electrodes covered by a thin film of electro-optical material that changes its optical properties in response to electric signals.

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2021-10-14 13:11:52



Possible alternative treatment for Lyme disease  

Researchers have described a new antibiotic that appears to have the potential to cure Lyme disease.

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2021-10-14 13:11:49



Clues emerge: How harmless bacteria go rogue turning into deadly flesh-eating variants  

A new study found that the environmental lifestyle that bacteria possess reveal why some go rogue and turn deadly while others remain harmless to humans. The findings focus on Vibrio vulnificus, better known as the flesh-eating bacteria. However, what the scientists found could help create a model that may well extend to other human pathogens.

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2021-10-14 13:11:47



New statistical study finds link between protein evolution and thermal variation  

A recent statistical study has revealed some of the constraints and directions in the evolution of the structure and function of proteins. Better models of protein structural dynamics may allow researchers to understand more of this fundamental mystery in living organisms.

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2021-10-14 11:12:20



Ranking healthfulness of foods from first to worst  

Food Compass, a new nutrient profiling system, rates the healthfulness of foods, beverages, and mixed meals on a score of 1-100 based on a wide range of science-based attributes. This adaptable tool aims to encourage healthier choices, spur industry reformulation, and guide nutrition policies.

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2021-10-14 11:12:17



Americans are eating more ultra-processed foods  

Consumption of ultra-processed foods has increased over the past two decades across nearly all segments of the U.S. population, according to a new study.

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2021-10-14 10:20:38



Scientists map brain circuit that drives activity in fertile females  

Scientists have known for a century that female animals become more active just as they are about to ovulate, a behavior that evolved to enhance their chances of mating when they are fertile.

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2021-10-14 10:20:35



Lone changer: Fish camouflage better without friends nearby  

While gobies aren't the only fish with camouflage abilities, new research shows that their colour change is influenced by their social context: they transform faster and better when alone. This is likely an adaptive, stress response to perceived threat from predators - with possible application to other camouflaging species.

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2021-10-14 10:20:32



Cell-based influenza vaccine provides protection against the flu in children  

A cell-based influenza vaccine has effectively provided protection against the flu in children and adolescents, according to a new study.

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2021-10-14 10:20:30



Data continues to show that American's need at least 5 hours per week of physical activity to prevent some cancers  

A new report finds more than 46,000 cancer cases annually in the United States could be prevented if Americans met the 5 hours per week of moderate-intensity recommended physical activity guidelines.

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2021-10-14 10:20:27



Bone-loss discovery points to new treatment for osteoporosis  

A new discovery about osteoporosis suggests a potential treatment target for that brittle-bone disease and for bone loss from rheumatoid arthritis.

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2021-10-14 10:02:23



After two hours, sunscreens that include some zinc oxide can lose effectiveness, become toxic  

Sunscreen that includes zinc oxide, a common ingredient, loses much of its effectiveness and becomes toxic after two hours of exposure to ultraviolet radiation, according to scientists.

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2021-10-14 10:02:20



Sustainable farming: There's no one solution  

Sustainable agriculture will not be achieved by one universal solution. A meta-analysis shows that the current focus on no-till farming does not achieve the desired results. A sustainable system of agriculture must be designed for local needs and in dialog with local farmers.

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2021-10-14 10:02:15



Artificial intelligence-based technology quickly identifies genetic causes of serious disease  

An artificial intelligence (AI)-based technology rapidly diagnoses rare disorders in critically ill children with high accuracy. The benchmark finding foreshadows the next phase of medicine, where technology helps clinicians quickly determine the root cause of disease so they can give patients the right treatment sooner.

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2021-10-14 10:02:04



Brain activity patterns after trauma may predict long-term mental health  

The way a person's brain responds to stress following a traumatic event, such as a car accident, may help to predict their long-term mental health outcomes, according to new research. The study followed more than 3,000 people for up to a year after exposure to a traumatic event.

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2021-10-14 10:01:56



Pesticide linked to chronic kidney disease  

A commonly available pesticide has been associated with an increased risk of chronic kidney disease (CKD).

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2021-10-14 10:01:48



Sense of smell is our most rapid warning system  

The ability to detect and react to the smell of a potential threat is a precondition of our and other mammals' survival. Using a novel technique, researchers have been able to study what happens in the brain when the central nervous system judges a smell to represent danger. The study indicates that negative smells associated with unpleasantness or unease are processed earlier than positive smells and trigger a physical avoidance response.

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2021-10-14 10:01:39



Molecular mixing creates super stable glass  

Researchers have succeeded in creating a new type of super-stable, durable glass with potential applications ranging from medicines, advanced digital screens, and solar cell technology. The study shows how mixing multiple molecules -- up to eight at a time -- can result in a material that performs as well as the best currently known glass formers.

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2021-10-14 10:01:28



Metabolic restoration in HIV-infected patients as a therapeutic approach  

Medical researchers have shown that optimizing the energy metabolism of key cells enables people with HIV-1 to better defend themselves against the virus.

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2021-10-14 10:01:26



Unique underpinnings revealed for stomach's acid pump  

Researchers have improved understanding of the molecular mechanisms of a key protein that makes the stomach acidic. Their findings could lead to better drugs for stomach ulcers and shed light on the functions of similar proteins across the human body.

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2021-10-14 10:01:21



Laser treatment could significantly improve glaucoma care in Africa, potentially at no extra cost  

Laser treatment has the potential to transform the management of glaucoma in Africa, and to prevent more people from going irreversibly blind, particularly in regions with high disease prevalence and incidence, suggests new research. Conducted in Tanzania, the research is the first randomised controlled trial exploring the use of the laser treatment, Selective Laser Trabeculoplasty (SLT), for patients with glaucoma in Sub-Saharan Africa.

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2021-10-13 18:40:19



Surface chemistry reveals corrosive secrets  

Interactions between iron, water, oxygen and ions quickly become complex. Scientists have now developed a more precise method to observe how iron minerals like rust form.

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2021-10-13 17:40:30



Improvements in microscopy home in on biology's elusive details  

Researchers are carrying the field of microscopy a step further, refining a technique known as cryogenic electron microscopy, or cryo-EM.

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2021-10-13 17:40:26



Smoke from nuclear war would devastate ozone layer, alter climate  

The massive columns of smoke generated by a nuclear war would alter the world's climate for years and devastate the ozone layer, endangering both human health and food supplies, new research shows. The international study draws on newly developed computer climate modeling techniques to paint an even grimmer picture of a global nuclear war's aftermath than previous analyses.

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2021-10-13 17:40:23



Hormone widely used as an autism treatment shows no benefit  

Oxytocin, a naturally occurring hormone that acts as a chemical messenger in the brain, showed no evidence of helping children with autism gain social skills, according to a large national study.

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2021-10-13 17:40:14



Quarks and antiquarks at high momentum shake the foundations of visible matter  

Two independent studies have illuminated unexpected substructures in the fundamental components of all matter. Preliminary results using a novel tagging method could explain the origin of the longstanding nuclear paradox known as the EMC effect. Meanwhile, authors will share next steps after the recent observation of asymmetrical antimatter in the proton.

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2021-10-13 15:22:13



Underwater gardens boost coral diversity to stave off 'biodiversity meltdown'  

Researchers are building symbiotic 'underwater gardens' in the Pacific Ocean to show how different species of coral can work together to possibly restore degraded reefs.

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2021-10-13 15:22:03



Data supports early COVID-19 vaccination for essential workers  

In areas where COVID-19 vaccines are limited, vaccinating essential workers before older adults can reduce infections and deaths, according to a modeling study.

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2021-10-13 15:21:50



Mosquito-based method to reduce dengue could be highly cost-effective in Singapore  

New research suggests that dengue -- a viral infection spread by mosquitos -- could be suppressed in Singapore in a highly cost-effective manner through the release of mosquitos infected with the bacterium Wolbachia.

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2021-10-13 15:21:42



High BMI independently associated with death and longer ICU stay for COVID patients  

In patients with COVID-19, a high body mass index (BMI) is associated with an increased risk of death and prolonged intensive care unit (ICU) stay, according to a new study.

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2021-10-13 15:21:36



Solving mystery of rare cancers directly caused by HIV  

For nearly a decade, scientists have known that HIV integrates itself into genes in cells that have the potential to cause cancer. And when this happens in animals with other retroviruses, those animals often develop cancer. But, perplexingly and fortunately, that isn't regularly happening in people living with HIV. A new study reveals why doctors aren't seeing high rates of T cell lymphomas -- or cancers of the immune system -- in patients with HIV.

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2021-10-13 15:21:06



In neurodegenerative diseases, brain immune cells have a 'ravenous appetite' for sugar  

At the beginning of neurodegenerative disease, the immune cells of the brain -- the 'microglia' -- take up glucose, a sugar molecule, to a much greater extent than hitherto assumed. These results are of great significance for the interpretation of brain scans depicting the distribution of glucose in the brain. Furthermore, such image-based data could potentially serve as a biomarker to non-invasively capture the response of microglia to therapeutic interventions in people with dementia.

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2021-10-13 15:21:03



Evidence of microtubules' mechanosensitive behavior  

Direct evidence that microtubules function as mechano-sensors and regulate the intracellular transport of molecules has been reported, leading to new possibilities in the fields of biomechanics, medicine, and biosensors.

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2021-10-13 15:21:00



Immense set of mysterious fast radio bursts  

An international team of astronomers recently observed more than 1,650 fast radio bursts (FRBs) detected from one source in deep space, which amounts to the largest set -- by far -- of the mysterious phenomena ever recorded. The source, dubbed FRB 121102, was observed using the Five-hundred-meter Aperture Spherical Telescope (FAST) in China, and represents more FRBs in one event than all previous reported occurrences combined.

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2021-10-13 13:16:11



Precise measurement of neutron lifetime  

Physicists have made the most precise measurement of the neutron's lifetime, which may help answer questions about the early universe.

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2021-10-13 13:16:09



Telehealth addiction treatment rose rapidly during pandemic; but potential benefits still unclear  

During the COVID-19 pandemic, addiction treatment providers rapidly pivoted to providing services via telehealth. New research highlights the potential for telehealth delivery to increase patient engagement by improving access and convenience. However, it also finds limited evidence that telehealth results in better retention or other outcomes relative to in-person treatment.

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2021-10-13 13:16:02






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