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Something is rapidly killing young apple trees in North American orchards. Scientists are stumped  

Studies seek answers to worrying threat

what do you think?

2019-03-25 14:17:28



Tissue engineering: Hydrogel for enhanced cell encapsulation and delivery  

Cellulose nanofibers (CNF) hydrogel has great potential as a cell-encapsulation delivery carrier for sustained release of paracrine factors and for tissue regeneration, with unique versatility for injection, scaffolding, and 3D bioprinting.

what do you think?

2019-03-25 13:51:21



Peptide shows promise for protecting kidneys from nephritis  

A synthetic peptide appears to directly disrupt the destructive inflammation that occurs in nephritis, enabling the kidneys to better recover and maintain their important functions, investigators report.

what do you think?

2019-03-25 13:38:17



Antarctic snowfall dominated by a few extreme snowstorms  

A new study reveals the importance of a small number of intense storms around Antarctica in controlling the amount of snow falling across the continent.

what do you think?

2019-03-25 13:27:21



Genetic variants may influence poststroke recovery  

Our genes may have a bearing not only on our stroke risk, but probably also on how well we recover after stroke. For the first time, scientists have identified common genetic variants that are associated with outcome after ischemic stroke.

what do you think?

2019-03-25 13:15:20



Exposure to HIV virus, treatment before birth linked to obesity later in life  

Teens and young adults who were exposed to HIV and antiretroviral therapy before birth but are HIV-negative themselves are at increased risk of obesity and asthma-like symptoms.

what do you think?

2019-03-25 12:59:14



Investigational obesity drug, oxytocin, weakens brain's reward signals for food  

The hormone oxytocin reduces the communication between different brain areas involved in the cognitive, sensory and emotional processing of food cues that people with obesity demonstrate when they look at high-calorie foods.

what do you think?

2019-03-25 12:49:27



Giving intravenous therapy to children at home is costly, lowers parents' quality of life  

When treating patients, doctors sometimes overlook how their decisions impact a world they never see: a patient's home life. In the case of some serious infections in children, oral antimicrobial drugs are just as good at treating these ailments at home as the standard, intravenous medications. But according to new research, by-mouth medications excel in the important measure of preserving parents' quality of life.

what do you think?

2019-03-25 12:44:06



Understanding gene interactions holds key to personalized medicine  

Scientists outline a new framework for studying gene function -- not in isolation, gene by gene, but as a network, to understand how multiple genes and genetic background influence trait inheritance.

what do you think?

2019-03-25 12:43:50



Overland migration of Arctic Terns revealed  

Data from a landmark three year study of the world's longest migrating seabird reveals how overland migration is an integral part of their amazing journey.

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2019-03-25 12:35:14



Cesarean deliveries in India: Too many and yet too few  

Had India fallen prey to the epidemic of cesarean currently affecting many countries in the world?

what do you think?

2019-03-25 12:32:59



The Adult Brain Does Grow New Neurons After All, Study Says  

Study points toward lifelong neuron formation in the human brain’s hippocampus, with implications for memory and disease -- Read more on ScientificAmerican.com

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2019-03-25 12:31:57



BPA exposure during pregnancy can alter circadian rhythms  

Exposure to the widely used chemical bisphenol A (BPA) during pregnancy, even at levels lower than the regulated 'safe' human exposure level, can lead to changes in circadian rhythms, according to a mice study. The researchers report these changes may be a contributing factor in hyperactivity seen in BPA-exposed mice.

what do you think?

2019-03-25 12:13:26



A viable alternative to Medicare-for-all?  

Medicare-for-all, a solution that would bring United States healthcare policies more in line with other industrial nations, faces strong opposition and is unlikely to be enacted in the foreseeable future. Researchers now propose another approach that they believe would achieve wider access to care without triggering widespread opposition: a Medicare buy-in option for individuals under 65 years of age.

what do you think?

2019-03-25 11:39:52



Adipose hormone may play role in obesity-related asthma  

New research suggests a hormone released from fat tissue is critical in the development of obesity-related asthma and may be a target of future treatments for the disease.

what do you think?

2019-03-25 11:34:32



Hubble captures birth of giant storm on Neptune  

Images taken by the Hubble Space Telescope document the formation of a Great Dark Spot on Neptune for the first time, report researchers in a new study.

what do you think?

2019-03-25 11:24:35



Chemicals in household dust may promote fat cell development  

Endocrine-disrupting chemicals present in household dust promote the development of fat cells in a cell model and could contribute to increased growth in children relative to their age.

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2019-03-25 11:14:46



Hearing loss before 50 may mean higher risk of drug and alcohol issues  

People under age 50 with hearing loss misuse prescription opioids at twice the rate of their hearing peers, and are also more likely to misuse alcohol and other drugs, a new national study finds. This means that health care providers may need to take special care when treating pain and mental health conditions in deaf and hard-of-hearing young adults, the researchers say.

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2019-03-25 10:50:54



Icy giant planets in the laboratory  

Giant planets like Neptune may contain much less free hydrogen than previously assumed. Researchers drove shock waves through two different types of plastic to reach the same temperatures and pressures present inside such planets, and observed the behavior using ultra-strong X-ray laser pulses. Unexpectedly, one of these plastics kept its crystalline structure even at the most extreme pressures. Since the icy giant interiors are made up of the same components as the plastic, planetary models may

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2019-03-25 10:44:34



How watching TV and movies helps people with attachment issues  

People who have trouble with romantic relationships may watch movies and TV shows for more than just a chance to escape from their lives for a bit. New research suggests that people with attachment issues are more likely than others to be engaged in the stories - for instance, to say that they feel connected to the fictional characters and think about what they would do if they were in the same situations.

what do you think?

2019-03-25 10:13:49



Why immunotherapy is not effective for some patients with metastatic melanoma and kidney cancer  

White blood cells known as B cells have been shown to be effective for predicting which cancer patients will respond to immune checkpoint blockade (ICB) therapy, according to a new study.

what do you think?

2019-03-25 10:02:50



Effective fear of heights treatment without a therapist using virtual reality, study suggests  

A fully self-guided treatment using virtual reality (VR) is effective in reducing fear of heights. A team of researchers developed ZeroPhobia, a treatment delivered through a smartphone app and a basic VR viewer.

what do you think?

2019-03-25 09:55:39



Searching for missing anti-matter: A successful start to measurements with Belle II  

The Belle II detector got off to a successful start in Japan. Since March 25, 2019, the instrument has been measuring the first particle collisions, which are generated in the modernized SuperKEKB accelerator. The new duo produces more than 50 times the number of collisions compared to its predecessor. The huge increase in evaluable data means that there is not a greater chance of finding out why there is an imbalance between matter and anti-matter in the Universe.

what do you think?

2019-03-25 09:33:45



Measurement of thoughts during knowledge acquisition  

How does the brain represent our knowledge of the world? Does it have a kind of map, similar to our sense of direction? And if so, how is it organized? Scientists have come one step closer to demonstrating the existence of such a mental navigation system.

what do you think?

2019-03-25 09:18:29



Tuck into colourful fruits and vegetables and see the light  

A $5.7 billion global medical bill to restore sight for the estimated 45 million people with cataracts could be slashed in half by a diet rich in colourful fruits and vegetables, according to an international study.

what do you think?

2019-03-25 09:08:36



New computational tool could change how we study pathogens  

A sophisticated new analysis too incorporating advanced mathematical strategies could help revolutionize the way researchers investigate the spread and distribution of dangerous, fast-evolving disease vectors.

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2019-03-25 08:15:26



The growth of a wheat weed can be predicted to reduce the use of herbicides  

The study focuses on wild oats and is based on precision agriculture as well as the use of multispectral images.

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2019-03-25 08:02:21



Bacterial population growth rate linked to how individual cells control their size  

Physicists have developed a model that describes how individual parameters, like the variability in growth and the timing of cell division, can influence population dynamics in bacteria. Progress in this new field of study, which sits at the interface of math, physics, and biology, can help researchers better understand how individual-level metrics connect to population-level changes.

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2019-03-25 07:57:19



Obesity speeds up the start of puberty in boys  

Girls are not the only ones who go through puberty early if they have obesity. Boys with obesity enter puberty at an earlier age than average, according to a new study.

what do you think?

2019-03-25 07:55:10



Mothers of fussy babies at higher risk of depressive symptoms  

As FDA approval of the first postpartum depression drug hits the news, study looks at how infant fussiness and a baby's level of prematurity may influence the severity of maternal depressive symptoms.

what do you think?

2019-03-25 07:41:51



'Technoference': We're more tired and less productive because of our phones  

An Australian survey of 709 mobile phone users (aged 18 to 83) has found one in five women and one in eight men are losing sleep due to bad phone habits. The study identified other rising 'technoference' impacts, including physical aches and pains, and found 24% of women and 15% of men are now classified as ''problematic users''.

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2019-03-25 07:06:56



Duke University settles research misconduct lawsuit for $112.5 million  

Former university biologist who blew the whistle on data fabrication could get as much as one-third of total

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2019-03-25 07:03:51



Clouds have moderated warming triggered by climate change  

Researchers have analyzed information contained in the rings of ancient pine trees from northern Scandinavia to reveal how clouds have reduced the impact of natural phases of warmth in the past and are doing so again now to moderate the warming caused by anthropogenic climate change.

what do you think?

2019-03-25 06:56:31



How 3-D Printing Could Break into the Building Industry  

Imagine a single trained operator making a bridge, home or barracks -- Read more on ScientificAmerican.com

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2019-03-25 06:40:12



3D models reveal why bigger bumblebees see better  

By generating 3D images of bumblebees' compound eyes, researchers have discovered how bumblebees differ in their vision. The results could contribute to increased knowledge about the pollination process - once researchers are able to determine which flowers different bees see easily, and which ones they find it harder to distinguish.

what do you think?

2019-03-25 06:40:11



Removal of 'zombie cells' alleviates causes of diabetes in obese mice  

Researchers have shown that when senescent cells -- also known as 'zombie cells' -- are removed from fat tissue in obese mice, severity of diabetes and a range of its causes or consequences decline or disappear.

what do you think?

2019-03-25 06:35:36



New type of mobile tracking link shoppers' physical movements, buying choices  

A new study used a targeting strategy that tracks where, when, and for how long consumers are in a shopping mall to determine how shoppers' physical movements affect their economic choices. The study found that targeting potential customers in this way can significantly improve advertising via mobile phones.

what do you think?

2019-03-25 06:29:05



Stalagmite holds key to predicting droughts, floods for India  

By studying the last 50 years of growth of a stalagmite from Mawmluh Cave, they found an unexpected connection between winter rainfall amounts in northeast India and climatic conditions in the Pacific Ocean.

what do you think?

2019-03-25 06:23:37



Engineering cellular function without living cells  

Scientists have come up with a systematic method for studying and even predicting gene expression - without using cells. Using their innovative, quantitative approach, they measured important parameters governing gene regulation. This allowed them to design and construct a synthetic biological logic gate, which could one day be used to introduce new functions into cells.

what do you think?

2019-03-25 06:16:06



Newly discovered Medusavirus give new insights on how organisms and viruses co-evolved  

Researchers find a new giant virus in the hot springs of northern Japan. It's unique genetic makeup of histones and capsid proteins brings new insight into virus evolution.

what do you think?

2019-03-25 05:52:16



Scientists squeeze catalysts inside host materials like a ship into a bottle  

Scientists have found a way to place catalysts inside the tiniest pores of different host materials, a bit like when model ships are unfolded inside a bottle.

what do you think?

2019-03-25 05:16:21



Parasitic worms cause cancer -- and could help cure it  

Billions worldwide are infected with tropical worms. Unsurprisingly, most of these people live in poor countries, kept poor by the effects of worm-related malnourishment. What may surprise many is that worms also cause the majority of cases of some cancers in these countries.

what do you think?

2019-03-25 04:52:31



Continued PTSD in women exposed to deepwater horizon oil spill  

A study reports that women exposed to the 2010 Deepwater Horizon (BP) Oil Spill continue to experience symptoms of trauma and post-traumatic stress disorder (PTSD). Less than half reported receiving past-year mental health treatment despite the high levels of PTSD symptoms, which suggests that many affected women may not be receiving needed mental health care.

what do you think?

2019-03-25 04:31:48



Scientist constructs artificial photosynthetic cells  

Scientists build artificial cells as models of primitive cells. Research team have constructed artificial cells using minimal components that are able to supply energy to drive gene expression inside a microcompartment, thus these artificial cells can produce energy that helps synthesize parts of the cells themselves. This work marks an important milestone in constructing artificial autotrophic cells, and may shed light on how primordial cells used sunlight as an energy source early in life's hi

what do you think?

2019-03-25 04:01:20



Detrimental effect of overlooking female athletes' nutritional needs  

As poor nutrition can negatively affect everything from bone to reproductive health, more attention needs to be paid to the specific nutritional needs of female athletes, researchers argue.

what do you think?

2019-03-25 03:44:16



Physics Is Pointing Inexorably to Mind  

So-called “information realism” has some surprising implications -- Read more on ScientificAmerican.com

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2019-03-25 03:28:45



New neurons for life? Old people can still make fresh brain cells, study finds  

A new salvo in the debate over whether humans still make new brain cells as we get older

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2019-03-25 03:26:35



Challenging Academic Publishing  

A pilot collaboration between Springer Nature and ResearchGate aims to boost visibility for research articles on a network for connecting with peers -- Read more on ScientificAmerican.com

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2019-03-25 03:26:30



New heart valve aimed at high-risk patients  

Researchers have created the first-ever nanocomposite biomaterial heart-valve developed to reduce or eliminate complications related to heart transplants. By using a newly developed technique, the researchers were able to build a more durable valve that enables the heart to adapt faster and more seamlessly.

what do you think?

2019-03-25 03:25:30



Drug diversity in bacteria  

Bacteria produce a cocktail of various bioactive natural products in order to survive in hostile environments with competing (micro)organisms. Researchers demonstrate that they do so by modifying basic structures, similar to the approach taken in pharmaceutical research.

what do you think?

2019-03-25 03:21:04



Screen time plus snacking a risk for metabolic disorder in teens  

Teens who sit for hours watching TV, using the computer or playing video games while eating unhealthy snacks are at increased risk for a group of risk factors for heart disease and diabetes.

what do you think?

2019-03-25 03:09:15



How to Deal with Chaos in Climate and Politics  

In complex systems, small changes can make big differences -- Read more on ScientificAmerican.com

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2019-03-25 03:06:54



Bacteria may travel thousands of miles through the air globally  

Bacteria may travel thousands of miles through the air worldwide instead of hitching rides with people and animals, according to scientists. Their 'air bridge' hypothesis could shed light on how harmful bacteria share antibiotic resistance genes.

what do you think?

2019-03-25 02:49:50



Groin and hips of hockey players examined in five-second test  

Five seconds is enough to assess the status of a hockey player's groin. For the first time, a simple field test, called the five-second squeeze test, has been used on icehockey players to see if it can indicate current hip/groin function and hip muscle strength. According to the new study, there is a clear correlation between pain levels during the five second squeeze test and impaired sporting function as well as diminished hip muscle strength.

what do you think?

2019-03-25 02:29:55



Does story time with an e-book change how parents and toddlers interact?  

Traditional print books may have an edge over e-books when it comes to quality time shared between parents and their children, a new study suggests.

what do you think?

2019-03-25 02:25:37



Particulate air pollution linked with reduced sperm production in mice  

Exposure to tiny air pollution particles may lead to reduced sperm production, suggests new research in mice.

what do you think?

2019-03-25 02:21:23



A varied menu for the carnivorous waterwheel plant  

Biologists have for the first time reconstructed in detail the "menu" of the carnivorous waterwheel plant. This shows that the plant is not at all fussy about what it eats, and catches anything and everything that fits into its trap and triggers the snap mechanism.

what do you think?

2019-03-25 02:01:46



Autoimmune diseases are related to each other, some more than others  

Researchers using the world's largest twin registry to study seven autoimmune diseases found the risk of developing the seven diseases is largely inherited, but that some diseases are more closely related than others.

what do you think?

2019-03-25 01:48:51



Catalyst advance removes pollutants at low temperatures  

Researchers have developed a catalyst that can both withstand high temperatures and convert pollutants at near room temperature -- an important advance for reducing pollution in modern cars.

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2019-03-25 01:40:13



Study questions value of genetic risk scores  

What's known as the genome-wide polygenic score, or GPS, combines information from many thousands of genetic markers, each with only a minimal effect, to produce an overall assessment of disease risk based on an individual's entire genetic background. While a recent publication claimed that the GPS could be used by doctors to identify patients at high risk of conditions such as heart disease, cancer, and diabetes, a new study casts doubt on these claims.

what do you think?

2019-03-25 01:31:27



Aspirin to fight an expensive global killer infection  

Tuberculosis is far from eradicated around the world and still infects more than 1,400 people per year in Australia. Antibiotic resistant tuberculosis is particularly deadly and expensive to treat, costing up to $250,000 to treat a single case in Australia. Scientists have been working on new ways to treat tuberculosis by increasing the effectiveness of the immune system.

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2019-03-25 01:27:06



Asteroid Spit Up  

The near-Earth asteroid Bennu seems to be ejecting unexpected particles -- Read more on ScientificAmerican.com

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2019-03-24 13:21:49



Webb Telescope to explore galaxies from cosmic dawn to present day  

Baltimore MD (SPX) Mar 22, 2019 Through the combined power of NASA's James Webb Space Telescope and gravity creating "natural telescopes" in space, astronomers hope to answer two science questions that are fundamental to understanding the origins and evolution of the universe: - How did the first galaxies in the universe form, and did they make the universe transparent to light? - How did later galaxies produce and

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2019-03-24 12:54:59



The Light Triad vs. Dark Triad of Personality  

New research contrasts two very different profiles of human nature. -- Read more on ScientificAmerican.com

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2019-03-24 12:21:04



Mathematics of sea slug movement points to future robots  

Washington DC (SPX) Mar 11, 2019 What do pizza slices, sea slugs and one possible design for future soft-bodied robots have in common? They all have frilly surfaces, and new insights about the surprising geometry of frilly surfaces may help a future generation of energy-efficient and extremely flexible soft-body robots move. The complex folds of a frilly surface like coral reefs or kale leaves is a surface mathematicians

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2019-03-24 11:04:05



Sino-European joint space mission to send satellites in 2023  

Beijing (XNA) Mar 24, 2019 The Chinese Academy of Sciences (CAS) announced that a Sino-European joint space mission known as SMILE was launched Friday. The Solar Wind Magnetosphere Ionosphere Link Explorer is a comprehensive collaboration between the CAS and the European Space Agency (ESA). Satellites will be launched by 2023 to study the impact of solar activity on the Earth's environment. Wang Chi, director

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2019-03-24 09:39:32



Arianespace orbits 600th satellite, the PRISMA EO satellite for Italy  

Kourou, French Guiana (ESA) Mar 21, 2019 On its third launch of the year, Arianespace has successfully orbited the PRISMA Earth observation satellite on behalf of the ASI Italian space agency, within the scope of a contract with OHB Italia. This was the first Vega launch in 2019, and the 14th successful launch in a row for this light launcher since its introduction at the Guiana Space Center (CSG) in 2012. The launch took place o

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2019-03-24 07:43:16



Smart speaker technology harnessed for hospital medical treatments  

Smart speakers that are customarily used in your living room can be programmed to act as an aid to physicians in hospital operating rooms, according to new research.

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2019-03-24 07:39:39



The Underappreciated Threat of Volcanic Tsunamis  

Tsunamis caused by volcanoes are responsible for nearly a quarter of all deaths caused by eruptions, yet we have only now started to understand them. -- Read more on ScientificAmerican.com

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2019-03-24 07:04:50



Spacewalkers Complete Battery Swaps for Station Power Upgrades  

Houston TX (SPX) Mar 24, 2019 Expedition 59 Flight Engineers Nick Hague and Anne McClain of NASA concluded their spacewalk at 2:40 p.m. EDT. During the six-hour, 39-minute spacewalk, the two NASA astronauts successfully replaced nickel-hydrogen batteries with newer, more powerful lithium-ion batteries for the power channel on one pair of the station's solar arrays. Astronauts were also able to accomplish several get-ah

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2019-03-24 06:37:02



Ultra-sharp images make old stars look absolutely marvelous  

Hilo HI (SPX) Mar 22, 2019 Just as high-definition imaging is transforming home entertainment, it is also advancing how astronomers study the universe. "Ultra-sharp adaptive optics images from the Gemini Observatory allowed us to determine the ages of some of the oldest stars in our galaxy," said Leandro Kerber of the Universidade de Sao Paulo and Universidade Estadual de Santa Cruz, Brazil. Kerber led a large inter

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2019-03-24 05:53:24



New IR treatment for 'tennis elbow' reduces pain and inflammation without surgery  

Tennis elbow, the painful chronic condition that affects up to 3 percent of the US adult population, can be effectively treated through transcatheter arterial embolization (TAE), an image-guided, non-surgical treatment that decreases abnormal blood flow to the injured area to reduce inflammation and pain, according to new research.

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2019-03-24 05:44:39



Quasar jets confuse orbital telescope  

Moscow, Russia (SPX) Mar 14, 2019 Astrophysicists from the Moscow Institute of Physics and Technology, the Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS), and NASA have found an error in the coordinates of active galactic nuclei measured by the Gaia space telescope, and helped correct it. The findings, published in The Astrophysical Journal, also serve as an independent confirmation of the astrophysical

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2019-03-24 05:13:10



Ovary function is preserved in transgender men at one year of testosterone therapy  

Transgender men preserve their fertility potential even after one year of treatment with the male hormone testosterone, according to a new study.

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2019-03-24 04:54:29



Neural Networks Predict Planet Mass  

Bern, Switzerland (SPX) Mar 14, 2019 To find out how planets form astrophysicists run complicated and time consuming computer calculations. Members of the NCCR PlanetS at the University of Bern have now developed a totally novel approach to speed up this process dramatically. They use deep learning based on artificial neural networks, a method that is well known in image recognition. Planets grow in stellar disks accreting so

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2019-03-24 04:14:25



'Meta-mirror' reflects sound waves in any direction  

Durham NC (SPX) Mar 11, 2019 Researchers at Duke University and Aalto University (Finland) have constructed a "meta-mirror" device capable of perfectly reflecting sound waves in any direction. The proof-of-principle demonstration is analogous to looking directly into a mirror and only seeing the person next to you instead of your own face. The research appeared online on February 15 in the journal Science Advances.

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2019-03-24 04:04:31



SLS engine section approaches finish line for first flight  

Huntsville AL (SPX) Mar 24, 2019 NASA and Boeing have completed the majority of outfitting for the core stage engine section for the first flight of the agency's new Space Launch System (SLS) rocket. The engine section, located at the bottom of the 212-foot-tall core stage, is one of the most complex parts of the rocket. Technicians at NASA's Michoud Assembly Facility in New Orleans have installed more than 500 sensors, 1

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2019-03-24 04:02:31



Levothyroxine treatment in women with thyroid antibodies may not increase live birth rate  

Treating women with thyroid antibodies but a normal thyroid function with a medicine called Levothyroxine does not make them more likely to deliver a live baby, new research suggests.

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2019-03-24 04:02:05



Nanocrystal 'factory' could revolutionize quantum dot manufacturing  

Raleigh NC (SPX) Mar 15, 2019 North Carolina State University researchers have developed a microfluidic system for synthesizing perovskite quantum dots across the entire spectrum of visible light. The system drastically reduces manufacturing costs, can be tuned on demand to any color and allows for real-time process monitoring to ensure quality control. Over the last two decades, colloidal semiconductor nanocrystals, k

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2019-03-24 03:44:06



Breakthrough in air purification with a catalyst that works at room temperature  

Researchers have shown that a newly engineered catalyst made of gold nanoparticles supported on a metal oxide framework shows breakdown of ammonia impurities in air, with excellent selectivity for conversion to nitrogen gas. Importantly, it is effective at room temperature, making it suitable for everyday air purification systems. The team successfully identified the mechanism behind this behavior, paving the way towards the design of other novel catalytic materials.

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2019-03-24 03:38:51



Controlling thermal conductivity of polymers with light  

Chicago IL (SPX) Mar 15, 2019 Polymers are regularly used as thermal insulators for everything from keeping beverages hot to keeping sensitive electronics cool. In some cases, polymers can even be used as thermal conductors to enable efficient heating or cooling. In a new study, researchers at the University of Illinois at Urbana-Champaign have designed and demonstrated a novel type of polymer demonstrating a switchabl

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2019-03-24 03:33:06



Generic weight-loss drug may be safe and effective for long-term treatment  

An inexpensive weight-loss drug approved 60 years ago for only short-term use also may be safe and effective for longer-term treatment, according to a new study.

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2019-03-24 03:17:10



NASA instruments image fireball over Bering Sea  

Pasadena CA (JPL) Mar 24, 2019 On Dec. 18, 2018, a large "fireball" - the term used for exceptionally bright meteors that are visible over a wide area - exploded about 16 miles (26 kilometers) above the Bering Sea. The explosion unleashed an estimated 173 kilotons of energy, or more than 10 times the energy of the atomic bomb blast over Hiroshima during World War II. Two NASA instruments aboard the Terra satellite captu

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2019-03-24 03:04:45



Fathers-to-be: Smoking could harm your baby  

Fathers-to-be who smoke may increase the risk of congenital heart defects in their offspring, according to a new study. For mothers-to-be, both smoking and exposure to secondhand smoke were detrimental.

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2019-03-24 02:26:55



How electricity-eating microbes use electrons to fix carbon dioxide  

A phototrophic microbe called Rhodopseudomonas palustris takes up electrons from conductive substances like metal oxides or rust to reduce carbon dioxide.

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2019-03-24 02:14:04



Hydrophobicity and effective acid catalysis  

Researchers have shown that the tunable hydrophobic nature of dense siloxane gels is strongly correlated with their catalytic activity, explicitly demonstrating how molecules with different hydrophobic nature at the molecular level interact differently with surfaces of differing hydrophobicity. This is also the first time a siloxane gel has been shown to be highly effective for the reaction of silyl ethers, commonly used as a protecting agent.

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2019-03-24 02:04:31



Dormant viruses reactivate during spaceflight  

Washington DC (SPX) Mar 19, 2019 Herpes viruses reactivate in more than half of crew aboard Space Shuttle and International Space Station missions, according to NASA research published in Frontiers in Microbiology. While only a small proportion develop symptoms, virus reactivation rates increase with spaceflight duration and could present a significant health risk on missions to Mars and beyond. NASA's rapid viral detecti

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2019-03-24 01:42:18



Obese mouse mothers trigger heart problems in offspring  

Mitochondria manufacture energy in every cell of the body, including heart muscle cells. A new study shows that cardiac mitochondria are abnormal in the offspring of mouse mothers that become obese due to a high-fat, high sugar diet. Those offspring then pass on the mitochondrial defects at least two more generations.

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2019-03-23 21:46:51



Breast cancer may be likelier to spread to bone with nighttime dim-light exposure  

Exposure to dim light at night, which is common in today's lifestyle, may contribute to the spread of breast cancer to the bones, researchers have shown for the first time in an animal study.

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2019-03-23 19:15:36



Radioactive material detected remotely using laser-induced electron avalanche breakdown  

Physicists have developed a powerful new method to detect radioactive material. By using an infrared laser beam to induce an electron avalanche breakdown near the material, the new technique can detect shielded material from a distance -- improving upon current technologies that require close proximity to radioactive material. With additional engineering, the method could be scaled up to scan shipping containers at ports of entry, providing a powerful new tool for security applications.

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2019-03-23 18:38:41



Eating later in the day may be associated with obesity  

Eating later in the day may contribute to weight gain, according to a new study.

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2019-03-23 18:23:27



2.1-Billion-Year-Old Tracks May Be Giant Ancient "Slime Molds" [Video]  

Whatever made these structures lived 1.4 billion years before the first animals -- Read more on ScientificAmerican.com

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2019-03-23 13:33:52



Awe: The Most Incredible Emotion and Its Spectacular Effects  

Savvy Psychologist Dr. Ellen Hendriksen explores the 4 grand effects of this unique emotion -- Read more on ScientificAmerican.com

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2019-03-23 11:37:46



Treating diabetes in older adults requires simpler medication regimens, looser glycemic targets  

Simplifying medication regimens and tailoring glycemic targets in older adults with diabetes improves adherence and avoids treatment-related complications.

what do you think?

2019-03-23 11:04:50



Was Thomas Kuhn Evil?  

Filmmaker Errol Morris, once Kuhn’s grad student, accuses him of being a bad philosopher and bad person. -- Read more on ScientificAmerican.com

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2019-03-23 10:54:12



New hybrid closed loop insulin pump proves hard to use for some patients with diabetes  

Among first-time users of a new insulin pump that automatically delivers insulin to people with type 1 diabetes, nearly one-fifth stopped using the device, primarily because of difficulties meeting the technical demands system, researchers say.

what do you think?

2019-03-23 10:06:04



Sperm DNA damage may contribute to repeated miscarriages  

Some cases of recurrent pregnancy loss may be caused by sperm DNA damage in the male partner, rather than by a problem in affected women.

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2019-03-23 09:04:09



For migraine sufferers with obesity, losing weight can decrease headaches  

For migraine sufferers with obesity, losing weight can decrease headaches and improve quality of life, researchers report.

what do you think?

2019-03-23 07:42:35



Bisphosphonates increasingly prescribed to the women most likely to benefit  

In recent years, women who start taking bisphosphonates (BPs) to treat osteoporosis and prevent fracture have trended from younger to older and from having osteopenia to having osteoporosis, researchers report.

what do you think?

2019-03-23 07:14:11



Daylight Brings Toxic Beetles Together For Safety  

During daylight hours, hundreds of bombardier beetles of multiple species will congregate together to more effectively ward off any predators not afraid of a lone beetle's toxic spray. -- Read more on ScientificAmerican.com

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2019-03-23 04:35:45






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