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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.



Enhanced NMR reveals chemical structures in a fraction of the time  

Researchers have developed a way to dramatically enhance the sensitivity of nuclear magnetic resonance spectroscopy (NMR), a technique used to study the structure and composition of many kinds of molecules, including proteins linked to Alzheimer's and other diseases.

what do you think?

2019-01-18 21:22:57



Hand-knitted molecules  

Molecules are usually formed in reaction vessels or laboratory flasks. An Empa research team has now succeeded in producing molecules between two microscopically small, movable gold tips -- in a sense as a 'hand-knitted' unique specimen. The properties of the molecules can be monitored in real time while they are being produced. The research results have just been published in Nature Communications.

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2019-01-18 21:12:04



Fighting deadly drug resistant bacteria in intestines with new antibiotic  

Clostridium difficile infection (CDI) is a potentially deadly infection in the large intestine most common in people who need to take antibiotics for a long period of time, particularly in Australia's ageing population. But when doses of a new antibiotic called Ramizol were given to hamsters infected with a lethal dose of the bacteria, a significant proportion of hamsters survived the infection.

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2019-01-18 20:59:08



Short bouts of stairclimbing throughout the day can boost health  

It just got harder to avoid exercise. A few minutes of stair climbing, at short intervals throughout the day, can improve cardiovascular health, according to new research.

what do you think?

2019-01-18 20:42:46



Gene therapy promotes nerve regeneration  

Researchers have shown that treatment using gene therapy leads to a faster recovery after nerve damage. By combining a surgical repair procedure with gene therapy, the survival of nerve cells and regeneration of nerve fibers over a long distance was stimulated. The discovery is an important step towards the development of a new treatment for people with nerve damage.

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2019-01-18 20:41:42



Scientists learn how common virus reactivates after transplantation  

A new study challenges long-held theories of why a common virus -- cytomegalovirus, or CMV -- can reactivate and become a life-threatening infection in people with a compromised immune system, including blood cancer patients undergoing bone marrow transplantation.

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2019-01-18 20:24:13



Salad, soda and socioeconomic status: Mapping a social determinant of health in Seattle  

Seattle residents who live in waterfront neighborhoods tend to have healthier diets compared to those who live along Interstate-5 and Aurora Avenue, according to new research on social disparities. The study used local data to model food consumption patterns by city block. Weekly servings of salad and soda served as proxies for diet quality.

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2019-01-18 17:04:03



Killer blows? Knockout study of pair of mouse MicroRNA provides cancer insight  

Researchers used knockout mouse models created by gene editing to reveal that the miRNA miR-146b, like miR-146a, is involved in the development of cancers, with them having similar but not identical effects. The knockout mice should help in the fight against cancers involving miRNA dysregulation.

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2019-01-18 16:45:35



Exposure to chemicals during pregnancy is not associated with an increase in blood pressure  

Exposure to certain chemicals such as phthalates, parabens or Bisphenol A could be associated with a decrease in blood pressure during pregnancy.

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2019-01-18 16:26:54



Classic double-slit experiment in a new light  

An international research group has developed a new X-ray spectroscopy method based on the classical double-slit experiment to gain new insights into the physical properties of solids.

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2019-01-18 15:40:18



Smart microrobots that can adapt to their surroundings  

Scientists have developed tiny elastic robots that can change shape depending on their surroundings. Modeled after bacteria and fully biocompatible, these robots optimize their movements so as to get to hard-to-reach areas of the human body. They stand to revolutionize targeted drug delivery.

what do you think?

2019-01-18 15:36:53



Placentas adapt when mothers have poor diets or low oxygen during pregnancy  

Researchers have discovered the placenta regulates how much oxygen and nutrients it transports to babies during challenging pregnancies in the first study of its kind. The placenta is one of the least understood human organs and it is notoriously difficult to study. This new research focused on analyzing the placental mitochondria and it is hoped the new findings could lead to tests to determine whether a mother's placenta is functioning properly.

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2019-01-18 15:35:50



Bioethicists call for oversight of consumer 'neurotechnologies' with unproven benefits  

The marketing of consumer 'neurotechnologies' can be enticing: apps that diagnose a mental state, and brain devices that improve cognition or 'read' one's emotional state. However, many of these increasingly popular products aren't fully supported by science and have little to no regulatory oversight, which poses potential health risks to the public. Two bioethicists suggest the creation of a working group that would further study, monitor, and provide guidance for this growing industry -- which

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2019-01-18 15:19:31



New therapeutic avenue in the fight against chronic liver disease  

A recent study, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has introduced a novel targeted drug delivery system in the fight against cancer.

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2019-01-18 15:19:30



Potential biotech and health applications with new knowledge on bacteria and viruses  

New research to better understand how bacteria and their viruses interact and evolve will enable future studies to exploit the use of bacteria and their viruses for potential biotechnology and health applications.

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2019-01-18 15:15:14



Poor sleep and heart-related death  

Elderly men who experience extended episodes of interrupted breathing while asleep have a high risk of heart problems. Research shows for the first time that poor blood oxygenation is a good indicator of the chance of heart-related death, which cannot be attributed to sleep apnoea alone.

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2019-01-18 15:10:38



Unraveling of 58-year-old corn gene mystery may have plant-breeding implications  

In discovering a mutant gene that 'turns on' another gene responsible for the red pigments sometimes seen in corn, researchers solved an almost six-decades-old mystery with a finding that may have implications for plant breeding in the future.

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2019-01-18 13:52:32



Home-based hypertension program produces 'striking' results  

Pilot study finds that an innovative care-delivery program helped 81 percent of participants achieve blood pressure control in seven weeks.

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2019-01-18 13:27:23



Air pollution increases ER visits for breathing problems  

As levels of ozone and fine particulate pollution (PM2.5) rise, more patients end up in the ER with breathing problems, according to the largest US study of air pollution and respiratory emergency room visits of patients of all ages.

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2019-01-18 13:22:57



How musicians communicate non-verbally during performance  

Scientists have discovered a new technique to examine how musicians intuitively coordinate with one another during a performance, silently predicting how each will express the music.

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2019-01-18 13:22:55



'Happiness' exercises can boost mood in those recovering from substance use disorder  

Brief, text-based, self-administered exercises can significantly increase in-the-moment happiness for adults recovering from substance use disorders, report researchers.

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2019-01-18 13:17:33



Specific cognitive deficits in individuals with spinal cord injury  

A multidisciplinary team of researchers has identified specific cognitive deficits in individuals with spinal cord injury (SCI). Their findings support the theory of accelerated aging after SCI, and have important implications for further research.

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2019-01-18 12:47:19



Mediterranean freshwater fish species susceptible to climate change  

Climate change will strongly affect many European freshwater fish species. This is particularly the case for species in the Mediterranean region.

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2019-01-18 12:17:42



Mangrove patches deserve greater recognition no matter the size  

Governments must provide stronger protection for crucial small mangrove patches, experts say.

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2019-01-18 12:04:37



Does being bilingual make children more focused? Study says no  

Bilingual children do not have more advantages than monolingual children when it comes to executive function, which includes remembering instructions, controlling responses, and shifting swiftly between tasks.

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2019-01-18 11:25:34



Why do Hydra end up with just a single head?  

Hydra is able to regenerate any part of its body to rebuild an entire individual. The head organizer performs two opposite activities, one activating, which causes the head to differentiate, and the other inhibiting, which prevents the formation of supernumerary heads. Researchers have discovered the identity of the inhibitor, called Sp5, and deciphered the dialogue between these two antagonistic activities, which helps maintain a single-headed adult body and organize an appropriate regenerative

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2019-01-18 11:18:02



Synaptic logic for connections between two brain hemispheres  

Researchers have developed a new combination of technologies that allows them to identify the functional properties of individual synapses that link the two hemispheres and determine how they are arranged within a neuron's dendritic field.

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2019-01-18 10:48:36



Using bacteria to create a water filter that kills bacteria  

Engineers have created a bacteria-filtering membrane using graphene oxide and bacterial nanocellulose. It's highly efficient, long-lasting and environmentally friendly -- and could provide clean water for those in need.

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2019-01-18 10:10:29



Plant peptide helps roots to branch out in the right places  

How do plants space out their roots? A research team has identified a peptide and its receptor that help lateral roots to grow with the right spacing.

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2019-01-18 09:21:32



Waves in Saturn's rings give precise measurement of planet's rotation rate  

Saturn's distinctive rings were observed in unprecedented detail by NASA's Cassini spacecraft, and scientists have now used those observations to probe the interior of the giant planet and obtain the first precise determination of its rotation rate. The length of a day on Saturn, according to their calculations, is 10 hours 33 minutes and 38 seconds.

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2019-01-18 06:26:21



Scientists discover natural fitness watch in fishes that records their activity levels  

Scientists have shown for the first time that the energetic cost of living (the metabolic rate) of fish can be measured in structures that grow in their ears. This new tool can be used to show how fish are influenced by and adapt to changes in their environment, including climate change.

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2019-01-18 06:17:37



Reinforcement learning expedites 'tuning' of robotic prosthetics  

Researchers have developed an intelligent system for 'tuning' powered prosthetic knees, allowing patients to walk comfortably with the prosthetic device in minutes, rather than the hours necessary if the device is tuned by a trained clinical practitioner. The system is the first to rely solely on reinforcement learning to tune the robotic prosthesis.

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2019-01-18 05:31:41



Body-painting protects against bloodsucking insects  

A study by researchers from Sweden and Hungary shows that white, painted stripes on the body protect skin from insect bites. It is the first time researchers have successfully shown that body-painting has this effect. Among indigenous peoples who wear body-paint, the markings thus provide a certain protection against insect-borne diseases.

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2019-01-18 05:26:28



Puzzling phenomenon in a quantum gas: Insulators with conducting edges  

Insulators that are conducting at their edges hold promise for interesting technological applications. However, until now their characteristics have not been fully understood. Physicists have now modeled what are known as topological insulators with the help of ultracold quantum gases. They now demonstrate how the edge states could be experimentally detected.

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2019-01-18 05:25:17



New ways to harness wasted methane  

The primary component of natural gas, methane, is itself a potent greenhouse gas. A recent study has unveiled a high performance catalyst for methane conversion to formaldehyde.

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2019-01-18 05:22:13



Green turtle: The success of the reintroduction program in Cayman Islands  

The reintroduction program for the green turtle in the Cayman Islands has been crucial in order to recover this species, which are threatened by the effects of human overexploitation, according to the first genetic study of the green turtle's reintroduction program in this area of the Atlantic ocean.

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2019-01-18 05:04:41



Frailty could make people more susceptible to dementia  

New research suggests that frailty makes older adults more susceptible to Alzheimer's dementia, and moderates the effects of dementia-related brain changes on dementia symptoms. The findings suggest that frailty should be considered in clinical care and management of Alzheimer's dementia.

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2019-01-18 05:03:35



HPV vaccination rates remain critically low among younger adolescents in the U.S.  

Only about 16 percent of U.S. adolescents have been fully vaccinated against human papillomavirus (HPV) by the time they turn 13, despite national recommendations that call for vaccination at 11 to 12 years of age. The new findings highlight the need for stronger efforts to encourage HPV vaccination and to improve immunization rates in this key age group.

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2019-01-18 04:47:38



Soft drinks + hard work + hot weather = possible kidney disease risk  

New research suggests that drinking sugary, caffeinated soft drinks while exercising in hot weather may increase the risk of kidney disease.

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2019-01-18 03:55:05



New hope for stem cell approach to treating diabetes  

Researchers have tweaked the recipe for coaxing human stem cells into insulin-secreting beta cells and shown that the resulting cells are more responsive to fluctuating glucose levels in the blood.

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2019-01-18 03:07:21



Dangerous increases in patients mixing opioids, benzodiazepines or Z-drugs  

The number of Americans taking a dangerous combination of both opioids and benzodiazepines -- a group of drugs commonly prescribed for pain, insomnia and anxiety -- increased by 250 percent over a 15-year period, while there was an 850 percent increase in patients taking benzodiazepines and so-called Z-drugs, according to a new study.

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2019-01-18 02:42:38



Scientists accidentally engineer mice with unusually short and long tails  

Researchers from two groups studying mouse development have accidentally created mice with unusually long and unusually short tails. Their findings offer new insight into some of the key aspects controlling the development of tails in mice and have implications for understanding what happens when developmental pathways go awry.

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2019-01-18 02:24:20



Bee surveys in newest US national park could aid pollinator studies elsewhere  

Declines in native bee populations are widely reported, but can existing data really analyze these trends? Entomologists report findings about pollinator biodiversity in California's Pinnacle National Park derived from three separate surveys spanning 17 years and say similar studies in other areas are needed.

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2019-01-18 01:57:42



Violence in PG-13 rated movies not linked to violence in US society  

New research suggests that policy makers should remain focused on issues that have been demonstrated to impact criminal behavior, such as family environment, mental health, poverty and education.

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2019-01-18 01:37:57



New risk score far more effective for diabetes diagnosis  

Researchers have developed a new risk score which takes into account detailed genetic information known to increase the chances of type 1 diabetes. This could be used to help identity babies at highest risk of developing the condition in the future. The score may also be used at the time of diabetes diagnosis to help decide if someone has type 1 or type 2 diabetes, which need very different treatments.

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2019-01-18 01:06:04



Additive manufacturing reflects fundamental metallurgical principles to create materials  

Engineers have been taking a novel approach to the development of engineering components produced using additive manufacturing.

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2019-01-17 21:43:40



This computer program makes pharma patents airtight  

Routes to making life-saving medications and other pharmaceutical compounds are among the most carefully protected trade secrets in global industry. Building on recent work programming computers to identify synthetic pathways leading to pharmaceutically complex molecules, researchers have unveiled computerized methods to suggest only synthetic strategies that bypass patent-protected aspects of essential drugs.

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2019-01-17 21:33:46



Scientists create a renewable source of cancer-fighting T cells  

A study by UCLA researchers is the first to demonstrate a technique for coaxing pluripotent stem cells -- which can give rise to every cell type in the body and which can be grown indefinitely in the lab -- into becoming mature T cells capable of killing tumor cells.

what do you think?

2019-01-17 21:28:25



Risk for developing more than one mental health disorder revealed  

A new study has revealed the risks behind developing a seconds mental health disorder after an initial diagnosis in the largest and most comprehensive study of comorbidity to date.

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2019-01-17 21:17:27



Blister fluid could help diagnose burn severity  

Severe burns can leave physical and psychological scars, especially in children. When a burn patient enters the clinic, doctors use factors such as the depth and size of the burn, as well as the time required for skin healing -- or re-epithelialization -- to determine the best course of treatment. Now, researchers have found another, possibly more accurate way to classify burn severity: analyzing proteins in blister fluid.

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2019-01-17 20:45:01



More animal species under threat of extinction, new method shows  

Currently approximately 600 species might be inaccurately assessed as non-threatened on the Red List of Threatened Species. More than a hundred others that couldn't be assessed before, also appear to be threatened. A new more efficient, systematic and comprehensive approach to assess the extinction risk of animals has shown this.

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2019-01-17 20:38:23



Epigenetics contribute to male and female differences in fear memory  

In a mouse model of traumatic memory, male mice recall fear-related memories better than female mice, according to a new study.

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2019-01-17 20:17:36



New light shed on intensely studied material  

The organic polymer PEDOT is probably one of the world's most intensely studied materials. Despite this, researchers have now demonstrated that the material functions in a completely different manner than previously believed. The result has huge significance in many fields of application.

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2019-01-17 20:16:34



Scientists connect dots between colitis and colon cancer  

Lingering inflammation in the colon is a known risk factor for colorectal cancer and now scientists report one way it resets the stage to enable this common and often deadly cancer.

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2019-01-17 20:01:16



Measuring ability of artificial intelligence to learn is difficult  

Organizations looking to benefit from the artificial intelligence (AI) revolution should be cautious about putting all their eggs in one basket, a study has found.

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2019-01-17 19:26:27



Brain cells that make pain unpleasant  

If you step on a tack, neurons in your brain will register two things: that there's a piercing physical sensation in your foot, and that it's not pleasant. Now, a team of scientists has identified a bundle of brain cells in mice responsible for the latter -- that is, the negative emotions of pain.

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2019-01-17 18:32:08



New thermoelectric material delivers record performance  

Taking advantage of recent advances in using theoretical calculations to predict the properties of new materials, researchers have discovered a new class of half-Heusler thermoelectric compounds, including one with a record high figure of merit -- a metric used to determine how efficiently a thermoelectric material can convert heat to electricity.

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2019-01-17 18:27:42



Scientists find increase in asteroid impacts on ancient Earth by studying the Moon  

A team of scientists has determined the number of asteroid impacts on the Moon and Earth increased by two to three times starting around 290 million years ago. Previous theories held that there were fewer craters on both objects dating back to before that time because they had disappeared due to erosion. The new findings claim that there were simply fewer asteroid impacts during that earlier period.

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2019-01-17 18:25:34



Proposed engineering method could help make buildings and bridges safer  

Researchers discovered that the distance between dislocations in nanolayer interfaces of pearlite can determine how much the material can stretch or contract without breaking (ductility). The dislocations are disruptions in the regular arrangements of atoms in nanolayers. This discovery opens the possibility of engineering materials with higher ductility by simply manipulating the spacing between their dislocations and may improve the safety of structures such as buildings and bridges in earthqu

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2019-01-17 18:07:05



Wired for obesity  

Researchers have discovered a set of genes that help to establish brain connections governing body weight.

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2019-01-17 17:48:38



Emperor penguins' first journey to sea  

New research reveals the previously unknown behaviors of juvenile Emperor penguins in their critical early months when they leave their birth colony and first learn how to swim, dive, and find food.

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2019-01-17 17:32:16



Sea slug study illuminates how mitochondria move  

Defects in the transport of cells' energy organelles are a suspected cause of diseases including Alzheimer's, ALS, Huntington's and Parkinson's. A new study reveals the genetics behind mitochondrial shifts.

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2019-01-17 17:21:26



Another piece of Ebola virus puzzle: Host and virus protein interaction  

A team of researchers have discovered the interaction between an Ebola virus protein and a protein in human cells that may be an important key to unlocking the pathway of replication of the killer disease in human hosts.

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2019-01-17 16:59:40



Can a critic-turned-believer sway others? The case of genetically modified foods  

When an advocate for one side of an issue announces that he or she now believes the opposite, can that message affect others' views? Research shows that such a conversion message can influence public attitudes. Using video of environmentalist Mark Lynas speaking about his change from an opponent of genetically modified crops to an advocate, researchers found that message had a greater impact than his direct advocacy message.

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2019-01-17 16:41:19



Scientists confirm pair of skeletons are from same early hominin species  

Separate skeletons suggested to be from different early hominin species are, in fact, from the same species, a team of anthropologists has concluded in a comprehensive analysis of remains first discovered a decade ago.

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2019-01-17 16:36:52



Nearly a quarter of antibiotic prescriptions for children and adults may be unnecessary  

One in 10 children and about one in six adults with private insurance received antibiotics they didn't need at least once in 2016, a new Michigan Medicine study suggests.

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2019-01-17 15:54:32



The cytoskeleton of neurons has been found to be involved in Alzheimer's disease  

A researcher has participated in a study describing what it is during the early stages of Alzheimer's that triggers the loss of dynamics and subsequent impairment of the dendritic spines, the compartments of the neurons responsible for receiving nerve impulses from other neurons. The role played by the actin cytoskeleton of these compartments and how it responds in the presence of beta-amyloid peptides, the component most commonly associated with Alzheimer's, have been described.

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2019-01-17 15:29:24



How molecules teeter in a laser field  

When molecules interact with the oscillating field of a laser, an instantaneous, time-dependent dipole is induced. This very general effect underlies diverse physical phenomena. Now scientists report on an experiment where the dependence of the driven-dipole response on the bound state of an electron in a methyl iodine molecule is revealed.

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2019-01-17 15:21:40



Saturn hasn't always had rings  

In its last days, the Cassini spacecraft looped between Saturn and its rings so that Earth-based radio telescopes could track the gravitational tug of each. Scientists have now used these measurements to determine the mass of the rings and estimate its age, which is young: 10-100 million years. This supports the hypothesis that the rings are rubble from a comet or Kuiper Belt object captured late in Saturn's history.

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2019-01-17 14:51:23



A new hope in treating neurodegenerative disease  

Korean researchers have identified the inhibition of autophagy in microglia, brain immune cells. It is expected to help develop treatments for Alzheimer's diseases which occur due to the inhibition of autophagy.

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2019-01-17 14:50:12



Orchards in natural habitats draw bee diversity, improve apple production  

Apple orchards surrounded by agricultural lands are visited by a less diverse collection of bee species than orchards surrounded by natural habitats.

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2019-01-17 14:04:19



Fruit fly promiscuity alters the evolutionary forces on males  

Researchers have demonstrated for the first time what effect female fruit flies having multiple partners has on sexual selection -- before and after mating. Sexual selection is the branch of natural selection concerned with obtaining mates and fertility, rather than survival.

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2019-01-17 13:51:28



Lack of fair access to urban green spaces  

People with higher incomes and more education tend to have greater access to urban green spaces than their less privileged neighbors, a new study of parks and greenery in 10 major North American cities has found.

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2019-01-17 13:14:24



Gene therapy blocks peripheral nerve damage in mice  

Scientists have developed a gene therapy that blocks axonal degeneration, preventing axon destruction in mice and suggesting a therapeutic strategy that could help prevent the loss of peripheral nerves in multiple conditions.

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2019-01-17 13:06:41



New test to detect disease and infection  

Researchers have developed a highly innovative new enzyme biomarker test that has the potential to indicate diseases and bacterial contamination saving time, money and possibly lives.

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2019-01-17 12:34:08



Researchers race against extinction to uncover tree's cancer-fighting properties  

As the population of a fir tree in China dwindles, researchers are racing to replicate its cancer-fighting molecules.

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2019-01-17 12:09:02



Combination therapy treats leishmaniasis, HIV patients  

Coinfection with visceral leishmaniasis (VL) and human immunodeficiency virus (HIV) has been observed in at least 35 countries on four continents and requires special case management. Currently, the World Health Organization recommends AmBisome monotherapy for treatment. Now, researchers have showed that a combination therapy of AmBisome and miltefosine is more effective.

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2019-01-17 12:05:46



Blocking hormone uptake burns more fat  

A newly discovered regulatory mechanism helps the body control the rate of fat metabolism, according to a new study. The finding may lead to new drugs to help burn stored fat and reduce weight.

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2019-01-17 11:37:35



Stress fracture? Your foot hitting pavement wasn't the main problem  

It starts as a persistent and irritating pain in the foot or lower leg, then it gets more intense, maybe with swelling, and soon a runner knows she's being sidelined by one of the most common running injuries: a stress fracture. These tiny cracks in the bone can halt training for months or even end a sports season. A segment of the multibillion-dollar wearables industry aims to save potential victims from this fate, but an engineering professor found a major problem: the devices are measuring th

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2019-01-17 11:02:35



Antibiotics still routinely prescribed in the ER for infants with viral lung infections  

Despite recommendations first issued more than a decade ago, antibiotics are still routinely prescribed in US emergency rooms for infants with bronchiolitis, a common viral lung infection. The findings highlight a concerning lag in translating evidence-based guidelines into clinical practice and underscore the need to continue educating health care providers and the public about appropriate antibiotic use.

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2019-01-17 10:47:39



Ice Age climate caused sediment sourcing in Gulf of Mexico to switch dramatically  

The onset of the most recent ice age about 2.6 million years ago changed where the western Gulf of Mexico gets its supply of sediments. The finding adds new insight into how extreme climate change can directly impact fundamental geological processes and how those impacts play out across different environments.

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2019-01-17 10:42:10



Psychological distress is a risk factor for dementia  

A new study suggests that vital exhaustion -- which can be perceived as an indicator of psychological distress -- is a risk factor for future risk of dementia.

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2019-01-17 10:30:13



Telling stories using rhythmic gesture helps children improve their oral skills  

For the first time it has been shown that a brief training session with rhythmic gestures has immediate benefits for narrative discourse in children of 5 and 6 years of age.

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2019-01-17 09:01:53



New scale for electronegativity rewrites the chemistry textbook  

Electronegativity is one of the most well-known models for explaining why chemical reactions occur. Now scientists have redefined the concept with a new, more comprehensive scale.

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2019-01-17 09:01:51



Scientists search for new methods to cure neurodegenerative diseases  

Most neurons in the human brain are generated from neural stem cells during embryonic development. After birth, a small reservoir of stem cells remains in the brain that keeps on producing new neurons throughout life. However, the question arises as to whether these new neurons really support brain function? And if so, can we improve brain capacity by increasing the number of neurons? A research group has now answered these questions.

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2019-01-17 08:45:38



Artificially produced cells communicate with each other  

Researchers have for the first time created artificial cell assemblies that can communicate with each other. The cells, separated by fatty membranes, exchange small chemical signaling molecules to trigger more complex reactions, such as the production of RNA and other proteins.

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2019-01-17 08:36:55



Complex molecules emerge without evolution or design  

In biology, folded proteins are responsible for most advanced functions. These complex proteins are the result of evolution or design by scientists. Now scientists have discovered a new class of complex folding molecules that emerge spontaneously from simple building blocks.

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2019-01-17 08:34:44



Managerialism in UK schools erodes teachers' mental health and well-being  

Performance targets, increased workload, curriculum changes and other bureaucratic changes are eroding teachers' professional identity and harming their mental health, a new study finds.

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2019-01-17 08:29:21



U.S. youth suicides more prevalent in states with higher gun ownership, study finds  

A new study finds that states with higher levels of household gun ownership also have higher overall youth suicide rates, with every 10 percentage-point increase in household gun ownership associated with a 26.9 percent increase in the youth suicide rate.

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2019-01-17 08:14:04



Individual lichens can have up to three fungi  

Individual lichens may contain up to three different fungi, according to new research from an international team of researchers. This evidence provides new insight into another recent discovery that showed lichen are made up of more than a single fungus and alga, overturning the prevailing theory of more than 150 years.

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2019-01-17 07:42:32



A new way to transfer energy between cells  

Researchers have described a new method for the transmission of electrons between proteins that refutes the evidence from experiments until now. This process, involved in the generation of energy in both animal and plant cells, will permit better understanding of the behavior of proteins in the cells, as well as giving a deeper understanding of the energy dysfunctions that cause diseases.

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2019-01-17 07:36:03



Penguins, starfish, whales: Which animals will win and lose in a warming Antarctic?  

Using risk assessments, like those used for setting occupational safety limits in the workplace, researchers determined the winners and losers of climate change in the Antarctic. They show that marine animals associated with sea ice for food or breeding, such as some whales and penguins, are most at risk from the effects of climate change, while seafloor predators and open-water feeding animals like starfish and jellyfish will benefit from the opening up of new habitat.

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2019-01-17 07:24:08



New findings reveal surprising role of the cerebellum in reward and social behaviors  

A study in rodents found that the brain's cerebellum -- known to play a role in motor coordination -- also helps control the brain's reward circuitry. Researchers found a direct neural connection from the cerebellum to the ventral tegmental area (a brain area long known to be involved in reward processing and encoding). The findings shed light on the brain circuits critical to the affective and social dysfunction seen across multiple psychiatric disorders.

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2019-01-17 05:50:37



New findings on eye-signal blending  

Knowing precisely where the signals meet and the brain processes them is vital to treating amblyopia, or reduced vision in one eye because the brain and eye aren't working together properly.

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2019-01-17 05:43:59



World Trade Center responders at increased risk for head and neck cancers  

A new study has found a significant increase in head and neck cancers among workers and volunteers who responded to the 9/11 terrorist attacks on the World Trade Center (WTC), pointing to newly emerging risks that require ongoing monitoring and treatment of those who were exposed during the initial response.

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2019-01-17 05:29:49



Cultivating 4D tissues: The self-curving cornea  

Scientists have developed a biological system which lets cells form a desired shape by molding their surrounding material -- in the first instance creating a self-curving cornea. The astonishing video shows the cornea molding itself into a bowl-like structure over the course of 5 days.

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2019-01-17 04:57:19



Local focus could help tackle global problems  

People's love for their local areas could be harnessed to tackle global environmental problems, researchers say.

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2019-01-17 04:47:27



Size matters: To livebearer fish, big fins are a big deal  

Biologists studied the evolution of 40 molly and Limia species, and concluded dorsal fin displays arose first for males to compete with other males, only later being used in courtship displays to females. These changes in fin function went hand in hand with enlargement of the male dorsal fin. The fins reached extreme sizes in a few species and appear to be associated with rapid evolution, especially in mollies.

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2019-01-17 03:38:44



Nanoparticle breakthrough in the fight against cancer  

A recent study has introduced a novel targeted drug delivery system in the fight against cancer.

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2019-01-17 03:22:26



How our cellular antennas are formed  

Most of our cells contain an immobile primary cilium. The 'skeleton' of the cilium consists of microtubule doublets, which are 'pairs' of proteins essential for their formation and function. Scientists have developed an in vitro system capable of forming microtubule doublets, and have uncovered the mechanism and dynamics of their assembly. Their study reveals the crucial role of tubulin, a real building block, in preventing the uncontrolled formation of ciliary structures.

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2019-01-17 02:58:39






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