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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.



A complete cell atlas and lineage tree of the immortal flatworm  

From one stem cell to many differentiated body cells: Scientists have now published a comprehensive lineage tree of a whole adult animal. This was made possible by a combination of RNA and computational technologies.

what do you think?

2018-04-20 18:27:42



Cancer: Tumor transition states  

Researchers define for the first time the tumor transition states occurring during cancer progression and identify the tumor cell populations responsible for metastasis.

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2018-04-20 15:53:24



Blood biomarkers may allow easier detection, confirmation of concussions  

Researchers have found that specific small molecules in blood plasma may be useful in determining whether someone has sustained a mild traumatic brain injury (mTBI), commonly known as a concussion.

what do you think?

2018-04-20 15:25:04



Bottlenose dolphins recorded for the first time in Canadian Pacific waters  

A large group of common bottlenose dolphins (Tursiops truncatus) have been spotted in Canadian Pacific waters -- the first confirmed occurrence of the species in this area.

what do you think?

2018-04-20 13:04:30



Graphene sets a new record on squeezing light to one atom  

Researchers reach the ultimate level of light confinement -- the space of one atom. This will pave the way to ultra-small optical switches, detectors and sensors.

what do you think?

2018-04-20 12:54:57



'Rip Van Winkle' plants hide underground for up to 20 years  

Scores of plant species are capable of living dormant under the soil for up to 20 years, enabling them to survive through difficult times, a new study has found.

what do you think?

2018-04-20 12:18:55



Remote-control shoots laser at nano-gold to turn on cancer-killing immune cells  

Cancer immune cell therapy has made headlines with astounding successes like saving former US President Jimmy Carter from brain cancer. But immunotherapy has also had many tragic flops. Researchers working to optimize the innovative treatment have implanted a genetic switch that activates T-cells when they are inside of tumors. Remote-control light waves resembling those used in a TV remote combine with gold nanorods to flip the switch.

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2018-04-20 11:32:20



Structured light and nanomaterials open new ways to tailor light at the nanoscale  

New research has shown that carefully structured light and matching arrangements of metal nanostructures can be combined to alter the properties of the generated light at the nanometer scale. The teams have shown that the efficiency of nonlinear optical fields generated from the oligomers is strongly influenced by how the constituents of the oligomer constituents are illuminated by structured light.

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2018-04-20 10:57:26



Medical chemists discover peptic ulcer treatment metallodrug effective in 'taming' superbugs  

A novel solution to antimicrobial resistance -- medical chemists discover peptic ulcer treatment metallodrug effective in 'taming' superbugs.

what do you think?

2018-04-20 10:36:38



Soil metals linked with cancer mortality  

Epidemiologists and geologists have found associations between esophageal cancer and soils where lead is abundant, lung cancer and terrains with increased copper content, brain tumor with areas rich in arsenic, and bladder cancer with high cadmium levels. These statistical links do not indicate that there is a cause-effect relationship between soil type and cancer, but they suggest that the influence of metals from the earth's surface on the geographical distribution of tumors should be analyzed

what do you think?

2018-04-20 09:40:06



Trees are not as 'sound asleep' as you may think  

High-precision three-dimensional surveying of 21 different species of trees has revealed a yet unknown cycle of subtle canopy movement during the night. The 'sleep cycles' differed from one species to another. Detection of anomalies in overnight movement could become a future diagnostic tool to reveal stress or disease in crops.

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2018-04-20 09:01:54



Biomarkers for irritable bowel syndrome  

Little is still known about the exact causes of irritable bowel syndrome. An international team has provided initial clues about the organic triggers of the disease, which affects an estimated one out of six people.

what do you think?

2018-04-20 08:10:45



Small changes in rainforests cause big damage to fish ecosystems  

Using lasers, researchers have connected, arranged and merged artificial cells, paving the way for networks of artificial cells acting as tissues.

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2018-04-20 08:10:08



When there's an audience, people's performance improves  

Often people think performing in front of others will make them mess up, but a new study found the opposite: being watched makes people do better.

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2018-04-20 07:56:08



Age affects how we predict and respond to stress at home  

A recent study finds that older adults are better than younger adults at anticipating stressful events at home -- but older adults are not as good at using those predictions to reduce the adverse impacts of the stress.

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2018-04-20 07:40:25



Lupus treatment generates positive results in Phase III clinical trial  

New research indicates that belimumab, a monoclonal antibody therapy that targets a component of the immune system, provides considerable benefits to patients with systemic lupus erythematosus (SLE), a predominately female, chronic inflammatory disease that can affect virtually any organ.

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2018-04-20 07:14:14



New DNA screening reveals whose blood the vampire bat is drinking  

The vampire bat prefers to feed on domestic animals such as cows and pigs. When it does so, there is a risk of transmission of pathogens. Now, a new study describes a new DNA method to efficiently screen many vampire bat blood meal and fecal samples with a high success rate and thereby determine which animals the vampire bats have fed on blood from.

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2018-04-20 07:14:13



Treatment of cancer could become possible with adenovirus  

Researchers have shown that adenovirus binds to a specific type of carbohydrate that is overexpressed on certain types of cancer cells. The discovery opens up new opportunities for the development of virus-based cancer therapy.

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2018-04-20 06:41:12



Molecule that dilates blood vessels hints at new way to treat heart disease  

Americans die of heart or cardiovascular disease at an alarming rate. In fact, heart attacks, strokes and related diseases will kill an estimated 610,000 Americans this year alone. Some medications help, but to better tackle this problem, researchers need to know exactly how the heart and blood vessels stay healthy in the first place.

what do you think?

2018-04-20 05:57:55



Chip-based blood test for multiple myeloma could make bone biopsies a relic of the past  

A new research effort has resulted in a low-cost, reliable blood test that uses a small plastic chip about the size of a credit card that can deliver the same diagnostic information as a bone biopsy -- but using a simple blood draw instead.

what do you think?

2018-04-20 04:40:52



Rare earth magnet recycling is a grind -- this new process takes a simpler approach  

A new recycling process turns discarded hard disk drive magnets into new magnet material in a few steps, and tackles both the economic and environmental issues typically associated with mining e-waste for valuable materials.

what do you think?

2018-04-20 01:11:47



Gene-edited stem cells show promise against HIV in non-human primates  

Gene editing of bone marrow stem cells in pigtail macaques infected with simian/human immunodeficiency virus (SHIV) significantly reduces the size of dormant 'viral reservoirs' that pose a risk of reactivation.

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2018-04-19 20:40:34



Pregnant moms and their offspring should limit added sugars in their diets to protect childhood cognition  

A new study has determined that poorer childhood cognition occurred, particularly in memory and learning, when pregnant women or their offspring consumed greater quantities of sugar. Substituting diet soda for sugar-sweetened versions during pregnancy also appeared to have negative effects. However, children's fruit consumption had beneficial effects and was associated with higher cognitive scores.

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2018-04-19 19:46:12



Researchers achieve HD video streaming at 10,000 times lower power  

Engineers have developed a new HD video streaming method that doesn't need to be plugged in. Their prototype skips power-hungry components and has something else, like a smartphone, process the video instead.

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2018-04-19 19:41:49



Scientists identify connection between dopamine and behavior related to pain and fear  

Scientists have for the first time found direct causal links between the neurotransmitter dopamine and avoidance -- behavior related to pain and fear. Researchers have long known that dopamine plays a key role in driving behavior related to pleasurable goals, such as food, sex and social interaction. In general, increasing dopamine boosts the drive toward these stimuli. But dopamine's role in allowing organisms to avoid negative events has remained mysterious.

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2018-04-19 19:26:33



Rapid rise in mass school shootings in the United States, study shows  

More people have died or been injured in mass school shootings in the United States in the past 18 years than in the entire 20th century. In a new study, researchers have reviewed the history of mass school shootings in the U.S. and found some alarming trends.

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2018-04-19 19:05:47



Natural selection gave a freediving people in Southeast Asia bigger spleens  

The Bajau people of Southeast Asia, known as Sea Nomads, spend their whole lives at sea, working eight-hour diving shifts with traditional equipment and short breaks to catch fish and shellfish for their families. Researchers now report that the extraordinary diving abilities of the Bajau may be thanks in part to their unusually large spleens, a rare example of natural selection in modern humans.

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2018-04-19 18:58:25



HIV-1 viruses transmitted at birth are resistant to antibodies in mother's blood  

Of the genetically diverse population of HIV-1 viruses present in an infected pregnant woman, the few she might transmit to her child during delivery are resistant to attack by antibodies in her blood, according to new research.

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2018-04-19 18:35:20



Algorithm tool works to silence online chatroom sex predators  

An algorithm tool developed by researchers will help law enforcement filter out and focus on sex offenders most likely to set up face-to-face meetings with child victims.

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2018-04-19 18:27:43



Gene variant increases empathy-driven fear in mice  

A small difference in a gene affecting brain circuitry explains variations in empathic fear among different inbred mice strains. As empathy is evolutionarily conserved from rodents to humans, the study brings new insights into the workings of the mammalian brain in social behavior.

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2018-04-19 17:44:25



3-D human 'mini-brains' shed new light on genetic underpinnings of major mental illness  

Researchers are leveraging gene-editing tools and mini-organs grown in the lab to study the effects of DISC1 mutations in cerebral organoids -- 'mini brains' -- cultured from human stem cells.

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2018-04-19 16:29:12



Unprecedented wave of large-mammal extinctions linked to prehistoric humans  

Homo sapiens, Neanderthals and other recent human relatives may have begun hunting large mammal species down to size -- by way of extinction -- at least 90,000 years earlier than previously thought, according to a new study. The magnitude and scale of the extinction wave surpassed any other recorded during the last 66 million years, according to the study.

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2018-04-19 16:21:32



Vast stellar nursery of Lagoon Nebula  

This colorful cloud of glowing interstellar gas is just a tiny part of the Lagoon Nebula, a vast stellar nursery. This nebula is a region full of intense activity, with fierce winds from hot stars, swirling chimneys of gas, and energetic star formation all embedded within a hazy labyrinth of gas and dust.

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2018-04-19 15:56:36



Study predicts 2018 flu vaccine will likely have 20 percent efficacy  

A new study of 6,610 human flu sequences predicts that this fall's flu vaccine will likely have the same reduced efficacy against the dominant circulating strain of influenza A as the vaccine given in 2016 and 2017 due to viral mutations related to vaccine production in eggs.

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2018-04-19 15:03:13



The bugs in your gut could make you weak in the knees  

Scientists have long thought that osteoarthritis in people who are obese was a consequence of excess wear and tear on joints, but a new study suggests that the microbiome is the culprit. The study shows that a high fat diet (like the Western diet) can alter gut microbes, increase inflammation throughout the body, and speed deterioration of joints. An interesting twist: a common dietary supplement overturned these effects in mice.

what do you think?

2018-04-19 14:11:56



Variants in non-coding DNA contribute to inherited autism risk  

In recent years, researchers have firmly established that gene mutations appearing for the first time, called de novo mutations, contribute to approximately one-third of cases of autism spectrum disorder. In a new study scientists have identified a culprit that may explain some of the remaining risk: rare inherited variants in regions of non-coding DNA.

what do you think?

2018-04-19 13:41:41



Atoms may hum a tune from grand cosmic symphony  

Researchers playing with a cloud of ultracold atoms uncovered behavior that bears a striking resemblance to the universe in microcosm. Their work forges new connections between atomic physics and the sudden expansion of the early universe.

what do you think?

2018-04-19 13:17:43



Your grandchildren may retire before we achieve gender equality in STEMM  

New research has calculated that without further interventions, the gender gap for women working in STEMM is very likely to persist for generations, particularly in surgery, computer science, physics and maths.

what do you think?

2018-04-19 13:16:37



Anyone can be an innovator, research finds  

Innovators aren't born, but they can be made, a recent study suggests. Researchers created a contest -- for engineering and computer science students -- designed to answer the question: Are persuaded innovators less capable than those who naturally gravitate to innovative activities?

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2018-04-19 13:02:21



How to bend and stretch a diamond  

Brittle diamond can turn flexible and stretchable when made into ultrafine needles, researchers at MIT and elsewhere have discovered.

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2018-04-19 12:45:14



NASA planet hunter on its way to orbit  

NASA's Transiting Exoplanet Survey Satellite (TESS) launched on the first-of-its-kind mission to find worlds beyond our solar system, including some that could support life. Researchers will use spectroscopy to determine a planet's mass, density and atmospheric composition. Water, and other key molecules, in its atmosphere can give us hints about a planets' capacity to harbor life.

what do you think?

2018-04-19 12:15:34



Republicans more persuasive than scientists on climate change  

Regardless of political affiliation, people are more likely to believe facts about climate change when they come from Republicans speaking against what has become a partisan interest in this country, according to a new study.

what do you think?

2018-04-19 12:13:20



Clear as mud: Desiccation cracks help reveal the shape of water on Mars  

As Curiosity rover marches across Mars, the red planet's watery past comes into clearer focus.

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2018-04-19 11:31:01



Male contraceptive compound stops sperm without affecting hormones: Study in monkeys  

A new study details how a compound called EP055 binds to sperm proteins to significantly slow the overall mobility of the sperm without affecting hormones, making EP055 a potential 'male pill' without side effects.

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2018-04-19 11:23:28



Scalable manufacturing process spools out strips of graphene for use in ultrathin membranes  

Engineers have developed a scalable manufacturing process that spools out strips of graphene for use in ultrathin membranes.

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2018-04-19 09:27:13



Machine-learning system processes sounds like humans do  

Using a machine-learning system known as a deep neural network, researchers have created the first model that can replicate human performance on auditory tasks such as identifying a musical genre. This type of model can shed light on how the human brain may be performing the same tasks.

what do you think?

2018-04-19 09:27:02



Synthetic cancer indicator: An artificial mole as an early warning system  

Researchers have developed an early warning system for the four most common types of cancer. Should a tumor develop, a visible mole will appear on the skin.

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2018-04-19 09:22:56



Cities and communities in the US losing 36 million trees a year  

Nationally, urban/community tree cover declined from 42.9 percent to 42.2 percent between 2009-2014. This translates to losing an estimated 36 million trees or approximately 175,000 acres of tree cover annually.

what do you think?

2018-04-19 08:56:04



Museum researchers rediscover animal not seen in 30 years  

Researchers have rediscovered the San Quintin kangaroo rat (Dipodomys gravipes) in Baja California. The Museum is partnering with Terra and local authorities on a conservation plan for the species, which was last seen in 1986, and was listed as endangered by the Mexican government in 1994. It was held as an example of modern extinction due to agricultural conversion.

what do you think?

2018-04-19 08:13:02



Vitamin D deficiency linked to greater risk of diabetes  

An epidemiological study suggests that persons deficient in vitamin D may be at much greater risk of developing diabetes.

what do you think?

2018-04-19 07:37:08



Spider silk key to new bone-fixing composite  

Researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

what do you think?

2018-04-19 07:25:14



Using the right plants can reduce indoor pollution and save energy  

A plant physiologist concludes that a better knowledge of plant physiology, along with integration of smart-sensor-controlled air cleaning technologies, could improve indoor air quality in a cost-effective and sustainable way.

what do you think?

2018-04-19 07:15:19



Eyes of adolescents could reveal risk of cardiovascular disease, study finds  

New research has found that poorer well-being or 'health-related quality of life' (HRQoL) in adolescence could be an indicator of future cardiovascular disease risk. Researchers found that adolescents with poorer scores in the social and mental well-being domains of HRQoL have structural changes in their retinal blood vessels that could be associated with an increased risk of cardiovascular disease in later life.

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2018-04-19 07:04:22



Dementia diagnosis linked to unnecessary medication use  

A new study has found that medication use increases in newly diagnosed dementia patients, particularly unnecessary or inappropriate medications.

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2018-04-19 06:49:25



Ramped up fight-or-flight response points to history of warfare for humans and chimps  

Humans and chimpanzees recently evolved a more active fight-or-flight response compared to other primates, possibly in response to the threat of warfare.

what do you think?

2018-04-19 06:45:57



Great Barrier Reef coral predicted to last at least 100 years before extinction from climate change  

A common Great Barrier Reef coral species has enough genetic diversity to survive at least 100 years before succumbing to global warming, researchers predict.

what do you think?

2018-04-19 06:28:32



A novel way of creating gold nanoparticles in water  

The discovery that water microdroplets can replace potentially toxic agents in the creation of gold nanoparticles and nanowires could help usher in a new era of 'green chemistry.'

what do you think?

2018-04-19 06:15:24



Dogs could be more similar to humans than we thought  

Dog and human gut microbiomes have more similar genes and responses to diet than we previously thought, according to a new study

what do you think?

2018-04-19 06:02:23



Hurricane Harvey: Most fatalities occurred outside flood zones, Dutch-Texan research shows  

Scientists found that most Houston-area drowning deaths from Hurricane Harvey occurred outside the zones designated by government as being at higher risk of flooding: the 100- and 500-year floodplains. Harvey, one of the costliest storms in US history, hit Texas on Aug. 25, 2017, causing unprecedented flooding and killing dozens.

what do you think?

2018-04-19 05:12:22



Researchers find new way of exploring the afterglow from the Big Bang  

Researchers have developed a new way to improve our knowledge of the Big Bang by measuring radiation from its afterglow, called the cosmic microwave background radiation. The new results predict the maximum bandwidth of the universe, which is the maximum speed at which any change can occur in the universe.

what do you think?

2018-04-19 05:02:28



Neurons derived from super-obese people respond differently to appetite hormones  

Scientists have successfully generated hypothalamic-like neurons from human induced pluripotent stem cells (hiPSCs) taken from the blood and skin cells of super-obese individuals and people with a normal body weight. The researchers found that the brain cells derived from the super obese were more likely to dysregulate hormones related to feeding behavior and hunger, as well as obesity-related genes and metabolic pathways.

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2018-04-19 04:35:25



New strategies for hospitals during mass casualty incidents  

Using the layout of a typical urban hospital, the authors investigated a hospital's capacity and capability to handle mass casualty incidents of various sizes with various characteristics, and assessed the effectiveness of designed demand management and capacity-expansion strategies. Average performance improvements gained through capacity-expansion strategies were quantified and best response actions were identified.

what do you think?

2018-04-19 04:33:10



Young victims of cyberbullying twice as likely to attempt suicide and self-harm, study finds  

Children and young people under 25 who are victims of cyberbullying are more than twice as likely to self-harm and enact suicidal behavior, according to a new study. The research also suggests the perpetrators themselves are at higher risk of experiencing suicidal thoughts and behaviors as well.

what do you think?

2018-04-19 04:03:41



Integrating optical components into existing chip designs  

A new technique can assemble optical and electronic components separately on the surface of a computer chip, enabling the addition of optical components to existing chips with little design modification.

what do you think?

2018-04-19 03:15:47



More students report carrying guns in Chicago than New York or Los Angeles  

More students report carrying guns in Chicago than in New York or Los Angeles, a new study shows. The findings provide historical background for Chicago's 2016 spike in gun violence, which occurred mostly among youth and young adults.

what do you think?

2018-04-19 02:49:56



Frog embryos can fully regrow their eyes after injury, debunking a belief that they can't  

Scientists have found that frog embryos can fully regrow their eyes after injuries, a breakthrough that may lead one day to the ability to orchestrate tissue regeneration in humans.

what do you think?

2018-04-19 02:13:44



Biofeedback relaxation app may help kids during medical procedures  

A new study indicates that biofeedback-assisted relaxation may help manage pain and anxiety in children undergoing medical procedures.

what do you think?

2018-04-19 01:35:46



Obesity linked with higher chance of developing rapid, irregular heart rate  

People with obesity are more likely to develop a rapid and irregular heart rate, called atrial fibrillation, which can lead to stroke, heart failure and other complications, according to Penn State researchers. They found that people with obesity had a 40 percent higher chance of developing atrial fibrillation than people without obesity.

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2018-04-19 01:06:25



Peptide induces chirality evolution in a single gold nanoparticle  

Scientists have created a synthesis method to make optically active and chiral gold nanoparticles using amino acids and peptides for the first time. Many chemicals significant to life have mirror-imaged twins and such characteristics are conventionally called as chirality. This study describes how the chirality, typically observed in organic molecules, can be extended to three-dimensional metallic nanostructures. The research will be published in Nature and featured in its cover.

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2018-04-18 21:44:46



Brain processes sight and sound in same manner  

Neuroscientists have found that the human brain learns to make sense of auditory and visual stimuli in the same two-step process.

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2018-04-18 21:19:39



Characterizing 'keyhole' is first step to fighting obesity at cellular level  

Scientists have characterized for the first time a complex, little-understood cellular receptor type that, when activated, shuts off hunger.

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2018-04-18 20:26:22



Optimizing space travel efficiency  

Sending a human into space and doing it efficiently presents a galaxy of challenges. Scientists have explored ways to integrate the logistics of space travel by looking at a campaign of lunar missions, spacecraft design, and conducting research, to create a framework to optimize fuel and other resources.

what do you think?

2018-04-18 18:43:02



Meteorite diamonds tell of a lost planet  

Scientists have examined a slice from a meteorite that contains large diamonds formed at high pressure. The study shows that the parent body from which the meteorite came was a planetary embryo of a size between Mercury to Mars.

what do you think?

2018-04-18 15:02:08



Black hole and stellar winds form giant butterfly, shut down star formation in galaxy  

Researchers have completed an unprecedented 'dissection' of twin galaxies in the final stages of merging. The new study explores a galaxy called NGC 6240. While most galaxies in the universe hold only one supermassive black hole at their center, NGC 6240 contains two -- and they're circling each other in the last steps before crashing together.

what do you think?

2018-04-18 14:30:32



How to improve habitat conservation for migrating cranes  

Every year, endangered whooping cranes travel along a 4,000-kilometer corridor linking their Canadian nesting grounds and their winter home in Texas. Habitat in their path through the northern Great Plains is being lost at an alarming rate, but identifying key spots for protection is a challenge. Now, researchers behind a new study have created a model of whooping crane habitat use with the potential to greatly improve the targeting of conservation efforts during their migration.

what do you think?

2018-04-18 13:39:26



Study reveals new Antarctic process contributing to sea level rise and climate change  

A new study has revealed a previously undocumented process where melting glacial ice sheets change the ocean in a way that further accelerates the rate of ice melt and sea level rise. The research found that glacial meltwater makes the ocean's surface layer less salty and more buoyant, preventing deep mixing in winter and allowing warm water at depth to retain its heat and further melt glaciers from below.

what do you think?

2018-04-18 13:05:34



Brain networks: Keeping the excitement under control  

Scientists are using advanced techniques to monitor the activity of networks of single sensory neurons in the brain. By listening in on hundreds of conversations, the scientists have discovered how a single signal from one cell manages to attract attention.

what do you think?

2018-04-18 12:35:16



We can recognize speakers only from how faces move when talking  

Results of a new study by psychologists and speech scientists should help to settle a long-standing disagreement among cognitive psychologists about the information we use to recognize people speaking to us. The study shows that listeners can use visual dynamic features to learn to recognize who is talking.

what do you think?

2018-04-18 12:17:47



Robot developed for automated assembly of designer nanomaterials  

Engineers have developed a robot that can identify, collect, and manipulate two-dimensional nanocrystals. The robot stacked nanocrystals to form the most complex van der Waals heterostructure produced to date, with much less human intervention than the manual operations previously used to produce van der Waals heterostructures. This robot allows unprecedented access to van der Waals heterostructures, which are attractive for use in advanced electronics.

what do you think?

2018-04-18 12:03:28



Overcoming bias about music takes work  

Expectations and biases play a large role in our enjoyment of experiences such as art and wine. Now, researchers have found that simply being told that a performer is a professional or a student changes the way the brain responds to music, and overcoming this bias takes a deliberate effort.

what do you think?

2018-04-18 11:58:27



Detailed images of tumor vasculature  

Thanks to a new method of analyzing ultrasound images, conventional scanners can be used for generating high-res images of blood vessels in tumors. This approach makes it easier to distinguish between different types of tumors, and it facilitates the tracking of the progress and success of chemotherapy.

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2018-04-18 11:53:01



People who use medical marijuana more likely to use and misuse other prescription drugs  

Can medical marijuana help to fight the opioid epidemic? Many believe that it can. But a new study finds that people who use medical marijuana actually have higher rates of medical and non-medical prescription drug use -- including pain relievers.

what do you think?

2018-04-18 11:22:26



New new genus and species of extinct baleen whale identified  

Paleontologists are rewriting the history of New Zealand's ancient whales by describing a previously unknown genus of baleen whale, alive more than 27.5 million years ago and found in the Hakataramea Valley, South Canterbury.

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2018-04-18 09:56:49



Fatty fish and camelina oil are beneficial for your HDL and IDL cholesterol  

Eating fatty fish increases the size and lipid composition of HDL particles in people with impaired glucose metabolism, according to a new study. These changes in the size and lipid composition of HDL particles make them beneficial for cardiovascular health. The study also found that camelina sativa oil decreases the number of harmful IDL particles.

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2018-04-18 09:52:18



Study shows men and women tear ACL the same way in non-contact injury  

While women are two to four times more likely than men to tear the anterior cruciate ligament (ACL) in their knee, the cause of this injury is no different between the sexes, according to new research.

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2018-04-18 09:41:23



New ancestor of modern sea turtles found in Alabama  

A sea turtle discovered in Alabama is a new species from the Late Cretaceous epoch, according to a new study.

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2018-04-18 09:24:50



Global warming is transforming the Great Barrier Reef  

A new study shows that corals on the northern Great Barrier Reef experienced a catastrophic die-off following the extended marine heatwave of 2016.

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2018-04-18 08:49:05



Bugged out by climate change  

Warmer summer and fall seasons and fewer winter freeze-thaw events have led to changes in the relative numbers of different types of bugs in the Arctic. The study relies on the longest-standing, most comprehensive data set on arctic arthropods in the world today: a catalogue of almost 600,000 flies, wasps, spiders and other creepy-crawlies collected at the Zackenberg field stationĀ on the northeast coast of Greenland from 1996-2014.

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2018-04-18 08:30:41



T cell antigen receptors act alone: Longstanding immunological mystery solved  

With a standard electron microscope, only dead T cells can be studied. Therefore, it is very hard to figure out the inner workings of the cell. New microscopy techniques, making it possible to study living T cells, have now led to surprising results: while it has been generally believed that T cell receptors must interact with one another for effective immune-signaling, the new study shows: T cell receptors act alone.

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2018-04-18 07:48:30



Leptin's neural circuit identified  

Scientists have identified a neural circuit in the hypothalamus as the primary mechanism mediating the hormone leptin's anti-obesity and anti-diabetes effects and found two mechanisms underlying leptin's inhibition of appetite. The work in mice advances efforts to treat human obesity and diabetes.

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2018-04-18 07:39:19



A new Listeria species from Costa Rica  

Listeria costaricensis is the official name given to the new bacterial species just described by investigators.

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2018-04-18 07:30:01



The 'radical' ways sunlight builds bigger molecules in the atmosphere  

With summer approaching, 'sea and sun' might conjure up images of a beach trip. But for scientists, the interactions of the two have big implications for the climate and for the formation of tiny droplets, or aerosols, that lead to clouds. Researchers demonstrate that sunlight can cause certain molecules at the ocean's surface to activate others, resulting in larger molecules that could affect the atmosphere.

what do you think?

2018-04-18 06:24:50



Can estimates from forensic handwriting experts be trusted in court?  

Forensic handwriting specialists are often called on to testify in court about the origins of a few lines of writing, or to determine whether a specific person has written a sentence. Following a new study, researchers are now advising courts to take a cautionary approach when using experience-based likelihood ratios as evidence.

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2018-04-18 05:45:43



Unique protein is a vulnerability in the malaria parasite  

The malaria parasite is highly dependent on a unique protein for infecting new mosquitoes. This protein could be a target for the development of new drugs.

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2018-04-18 05:42:52



Writing and deleting magnets with lasers  

Scientists have found a way to write and delete magnets in an alloy using a laser beam -- a surprising effect. The reversibility of the process opens up new possibilities in the fields of material processing, optical technology, and data storage.

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2018-04-18 05:37:59



Martian moons model indicates formation following large impact  

Scientists posit a violent birth of the tiny Martian moons Phobos and Deimos, but on a much smaller scale than the giant impact thought to have resulted in the Earth-moon system. Their work shows that an impact between proto-Mars and a dwarf-planet-sized object likely produced the two moons.

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2018-04-18 05:23:18



Coho salmon die, chum salmon survive in stormwater runoff research  

Scientists found that coho salmon became sick and nearly died, within just a few hours of exposure to polluted stormwater. But chum salmon showed no signs of ill-effects after prolonged exposure to the same water.

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2018-04-18 05:14:04



340,000 stars' DNA interrogated in search for sun's lost siblings  

Astronomers have revealed the 'DNA' of more than 340,000 stars in the Milky Way, which should help them find the siblings of the sun, now scattered across the sky. This is the first major announcement of an ambitious survey as part of a quest to uncover the formulation and evolution of galaxies -- after the Australian-led Galactic Archaeology survey, called GALAH, commenced three years ago.

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2018-04-18 05:05:28



What happens to our muscles during spaceflight and when living on Mars?  

The inactivity of astronauts during spaceflights presents a significant risk to their muscles, says a new study. Scientists have simulated the impact of 21-day spaceflights on the body, and the impact of low gravity environments such as the moon or Mars.

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2018-04-18 04:57:50



Battery's hidden layer revealed  

An international team makes breakthrough in understanding the chemistry of the microscopically thin layer that forms between the liquid electrolyte and solid electrode in lithium-ion batteries. The results are being used in improving the layer and better predicting battery lifetime.

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2018-04-18 04:24:31





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