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ScienceDaily: Top News |
Proposed cuts to US Malaria Initiative could mean millions more malaria cases Posted: 21 Nov 2017 11:19 AM PST Cutting the budget of the President's Malaria Initiative (PMI) by 44 percent, as the US Congress has proposed, would lead to an estimated 67 million additional cases of malaria over the next four years, according to a mathematical model. |
Second HIV test helps prevent incorrect HIV diagnosis in infants Posted: 21 Nov 2017 11:19 AM PST Confirmatory HIV testing can substantially reduce the number of infants in South Africa who may be falsely diagnosed as HIV-infected and started on unneeded treatment, according to a new study. |
Specific tumor environment found that triggers cells to metastasize Posted: 21 Nov 2017 11:19 AM PST The environment surrounding a tumor can trigger metastatic behavior in cancer cells, a team of bioengineers and bioinformaticians has discovered. Specifically, when tumor cells are confined in a dense environment, the researchers found that they turn on a specific set of genes and begin to form structures that resemble blood vessels. |
Correctly used neonics do not adversely affect honeybee colonies, new research finds Posted: 21 Nov 2017 10:54 AM PST Amid mounting controversy over use of neonicotinoids and declining bee population, a new analysis of previously unpublished studies and reports commissioned by agri-chemical companies Bayer and Syngenta -- as well as published papers from the scientific literature -- shows no significant ill effects on honeybee colonies from three common insecticides made by the companies. |
New tool can help job searchers better position themselves in market Posted: 21 Nov 2017 10:54 AM PST A novel method, developed by an economist has been created to evaluate a worker's skillset and determine its impact on wages. |
Posted: 21 Nov 2017 10:25 AM PST A new nanomechanical hand shows the time of an electronic clock, by spinning a tiny cylinder using light. A silicon nanorod, less than a thousandth of a millimetre long, can be trapped in thin air using focused laser beams, and spun to follow the ticking of a clock, losing only one-millionth of a second over four days. |
How disposable diapers can improve measurements of tumor growth Posted: 21 Nov 2017 10:25 AM PST In pursuit of a better imaging phantom for improved tumor measurements, scientists hit upon an effective but unconventional solution: injecting water into disposable diapers. |
Turtles and technology advance understanding of lung abnormality Posted: 21 Nov 2017 10:25 AM PST A study of an unusual snapping turtle with one lung found shared characteristics with humans born with one lung who survive beyond infancy. New digital 3-D anatomical models made the detailed research possible. |
How to get sprayed metal coatings to stick Posted: 21 Nov 2017 10:25 AM PST New research reveals the best way to make metal particles stick to a surface in a spray-coating process. Surprisingly, melting hurts rather than helps. |
New study points the way to therapy for rare cancer that targets the young Posted: 21 Nov 2017 10:25 AM PST Scientists have engineered a mouse model to study a rare and often-fatal form of liver cancer. They've used it to clarify what drives these tumors at the molecular level, and discover new drug concepts. |
Posted: 21 Nov 2017 10:25 AM PST A potentially low-cost, low-emissions technology has been designed that can convert methane without forming carbon dioxide. |
Moon's crust underwent resurfacing after forming from magma ocean Posted: 21 Nov 2017 10:25 AM PST A research team took to the lab to recreate the magmatic melt that once formed the lunar surface and uncovered new insights on how the modern moonscape came to be. |
Deep learning used to reconstruct holograms, improve optical microscopy Posted: 21 Nov 2017 10:25 AM PST New uses for deep learning have been developed, report researchers, specificially reconstructing a hologram to form a microscopic image of an object and improving optical microscopy. Their new holographic imaging technique produces better images than current methods that use multiple holograms, and it's easier to implement because it requires fewer measurements and performs computations faster. |
How bacteria survive in oxygen-poor environments Posted: 21 Nov 2017 10:25 AM PST Biologists have revealed a mechanism by which bacterial cells in crowded, oxygen-deprived environments access oxygen for energy production, ensuring survival of the cell. The finding could explain how some bacteria, such as Pseudomonas aeruginosa (P. aeruginosa), are able to thrive in oxygen-poor environments like biofilms and resist antibiotics. P. aeruginosa biofilm infections are a leading cause of death for people suffering from cystic fibrosis, a genetic condition that affects the lungs and the digestive system. |
Watching atoms move in hybrid perovskite crystals reveals clues to improving solar cells Posted: 21 Nov 2017 10:23 AM PST The discovery of nanoscale changes deep inside hybrid perovskites could shed light on developing low-cost, high-efficiency solar cells. Using X-ray beams and lasers, a team of researchers discovered how the movement of ions in hybrid perovskites causes certain regions within the material to become better solar cells than other parts. |
Twisted sex allows mirror-image snails to mate face-to-face, research finds Posted: 21 Nov 2017 09:35 AM PST A new study has found that differently-coiled types of Japanese land snails should in fact be considered a single species, because -- against all odds -- they are sometimes able to mate, a result which has implications for the classification of other snails. |
Maintaining sufficient vitamin D levels may help to prevent rheumatoid arthritis Posted: 21 Nov 2017 09:33 AM PST Maintaining sufficient vitamin D levels may help to prevent the onset of inflammatory diseases like rheumatoid arthritis, research has discovered. |
Underwater acoustic localization of marine mammals, vehicles Posted: 21 Nov 2017 09:31 AM PST An underwater acoustic system for the localization of marine mammals, underwater vehicles and other sound sources in the ocean, using no more than a single hydrophone (basically an underwater microphone) as a receiver. |
Posted: 21 Nov 2017 09:24 AM PST Feeding the animals is altering the behavior and eating habits of the green turtle in the Canary Islands (Spain), concludes new research. |
Topological insulators: One glimpse is enough Posted: 21 Nov 2017 09:23 AM PST The Nobel Prize for physics in 2016 was awarded for the theory of topological matter. Topological insulators are new materials with special electronic properties and are of great fundamental and applications-oriented interest. Nevertheless, physicists have wrestled with a ten-year-old puzzle in which the results from the two best methods to probe their electronic states disagree. Researchers now know exactly why. |
Unexpected atmospheric vortex behavior on Saturn's moon Titan Posted: 21 Nov 2017 09:15 AM PST Recently reported unexpected behavior on Titan, the largest moon of Saturn, is due to its unique atmospheric chemistry. Titan is the largest moon of Saturn, is bigger than the planet Mercury, and is the only moon in our solar system to have a substantial atmosphere. |
Function of an enigmatic synaptic protein defined Posted: 21 Nov 2017 09:15 AM PST Communication is often mired in contradiction -- also in the brain. Neuroscientists have now resolved one such contradiction. The role of Synaptotagmin 7 has been controversial: There was a contradiction between the function it seemed to have, and the characteristics of signal transmission observed. Now, for the first time, scientists defined its functional contribution at an inhibitory GABAergic synapse: it ensures the efficiency of high-frequency inhibitory synaptic transmission. |
Good cells gone bad: Scientists discover PINK-SNO[W] Posted: 21 Nov 2017 09:15 AM PST A new study is the first to show precisely how a process in nerve cells, called the S-nitrosylation (SNO) reaction, may contribute to Parkinson's disease. |
New findings to help HIV scientists establish 'template' for potent antibodies Posted: 21 Nov 2017 09:15 AM PST New data further illuminate how some human beings generate powerful, HIV-blocking antibodies. These results offer important insight into a potential AIDS vaccine design. |
Virtual reality allows you to look inside your body and could help improve drug delivery Posted: 21 Nov 2017 09:14 AM PST Renderings of 3-D cells in the body are traditionally displayed using 2-D media, such as on a computer screen or paper; however, the advent of Virtual Reality (VR) headsets means it is now possible to visualize and interact with scientific data in a 3-D virtual world. |
Model by which plants adapt their photosynthetic metabolism to light intensity Posted: 21 Nov 2017 09:14 AM PST A new model explains the molecular mechanism used by plants to adapt their photosynthetic mechanism to light intensity. |
What does it mean for the husband when his wife keeps her own surname? Posted: 21 Nov 2017 09:14 AM PST When a woman chooses not to take her husband's surname after marriage, people perceive her husband as being higher in traits related to femininity and lower in traits related to masculinity. He is also perceived as having less power in the relationship. |
New database catalogues plants that soak up contamination Posted: 21 Nov 2017 09:14 AM PST Hyperaccumulators are unusual plants that can absorb much larger amounts of metal compounds in their leaves and stems than normal plants, and they are very useful for cleaning up contaminated land. |
Water cooling for the Earth's crust Posted: 21 Nov 2017 09:14 AM PST How deep can seawater penetrate through cracks and fissures into the seafloor? By applying a new analysis method, an international team of researchers has now discovered that the water can penetrate to depths of more than 10 kilometers below the seafloor. This result suggests a stronger cooling effect on the hot mantle. |
3-D folding of DNA provides important epigenetic mechanisms in the formation of cardiac muscle cells Posted: 21 Nov 2017 09:14 AM PST The three-dimensional folding of DNA provides important epigenetic mechanisms in the formation of cardiac muscle cells. |
Refining pesticides to kill pests, not bees Posted: 21 Nov 2017 09:14 AM PST Scientists have unlocked a key to maintain the insecticide's effectiveness in eliminating pests without killing beneficial bugs, such as bees. The study shows that molecular tweaks can make the difference. |
New simple test could help cystic fibrosis patients find best treatment Posted: 21 Nov 2017 09:14 AM PST While new CF drugs are life-changing for some patients, they don't work for everyone. Now, researchers present a simple test that aims to predict which treatment is most likely to work for each patient, an approach known as personalized or precision medicine. |
Corn genetics research exposes mechanism behind traits becoming silent Posted: 21 Nov 2017 09:14 AM PST For more than a century, plant geneticists have been studying maize as a model system to understand the rules governing the inheritance of traits, and a team of researchers recently unveiled a previously unknown mechanism that triggers gene silencing in corn. |
Children with Alagille Syndrome have malformed bile ducts Posted: 21 Nov 2017 09:10 AM PST Serious liver and heart problems can affect children with Alagille Syndrome early in life. While there is as yet no cure, researchers have discovered that the liver disease part of the syndrome is caused by specific malformations of the bile ducts. The results were discovered with the aid of a new mouse model that can now be used to develop and test new therapies. |
Atopic eczema: One size does not fit all Posted: 21 Nov 2017 07:12 AM PST Five distinct subgroups of eczema have been identified by researchers, a finding that helps explain how the condition can affect people at different stages of their lives. |
Posted: 21 Nov 2017 06:54 AM PST A simple 15-minute electrocardiogram could help a physician determine whether a patient has major depression or bipolar disorder, a groundbreaking new study reports. |
New device boosts road time for Tesla, Leaf drivers Posted: 21 Nov 2017 06:53 AM PST Nissan Leafs, which go about 107 miles on a charge, sometimes end up relegated to commuter cars due to battery-range worries. The mass-market, standard Tesla Model 3 can go double that but still can be disconcerting on long road trips. Both batteries could work up to 50 percent longer with a new device. It reconfigures modules -- clusters of battery cells -- in electric cars to be online or offline depending on whether they're going to pull down the other modules. |
Sensors could identify biomarkers, improve early-stage detection, treatment of diseases Posted: 21 Nov 2017 06:52 AM PST Researchers have found a method of identifying biological markers in small amounts of blood that they believe could be used to detect a myriad of diseases, infections and different medical conditions at early stages. The researchers have created microelectromechanical resonators, or small vibrating sensors, that can detect these biomarkers using just a drop or two of blood. |
Disordered eating among young adults found to have long-term negative health effects Posted: 21 Nov 2017 06:52 AM PST According to a recent study, disordered eating among young adults has long-term effects on their health. Disordered eating among 24-year-old women and men was an indicator of higher body weight, larger waist circumference and lower psychological well-being as well as a lower self-evaluation of general health both at age 24 and ten years later. |
For adults younger than 78, risk for heart disease linked to risk for problems walking Posted: 21 Nov 2017 06:52 AM PST A team of researchers examined the factors that put older adults at higher risk for developing physical limitations as they age. Findings suggest that reducing heart disease risk factors with appropriate treatments might help 'younger' older adults maintain their physical function. |
Anticholinergic cognitive burden scale helps identify risk of adverse outcomes Posted: 21 Nov 2017 06:52 AM PST Anticholinergic burden assessed with the Anticholinergic Cognitive Burden Scale consistently shows dose-response relationships with a variety of adverse outcomes. |
'Brazil nut effect' helps explain how rivers resist erosion Posted: 21 Nov 2017 06:52 AM PST Geophysicists have found that granular segregation helps explain the tendency of riverbeds to be lined by, or 'armored' with, a layer of relatively larger particles. |
Autoimmune disease discovery could spark new treatments Posted: 21 Nov 2017 06:52 AM PST Researchers have discovered a potent, drug-like compound that could someday revolutionize treatment of rheumatoid arthritis and other autoimmune diseases. |
Ancient barley took high road to China Posted: 21 Nov 2017 06:52 AM PST First domesticated 10,000 years ago in the Fertile Crescent of the Middle East, wheat and barley took vastly different routes to China, with barley switching from a winter to both a winter and summer crop during a thousand-year detour along the southern Tibetan Plateau, suggests new research. |
Male triathletes may be putting their heart health at risk Posted: 21 Nov 2017 06:52 AM PST Competitive male triathletes face a higher risk of a potentially harmful heart condition called myocardial fibrosis, according to new research. The increased risk, which was not evident in female triathletes, was directly associated with the athletes' amount of exercise. |
A chicken-flavored electrolyte drink could help sniffer dogs stay hydrated Posted: 21 Nov 2017 06:52 AM PST The first comparison of plain water, electrolyte injections and a chicken-flavored electrolyte drink as techniques for keeping sniffer dogs hydrated when working in hot weather finds that while all are safe and effective, dogs drink more and are more hydrated when given a chicken-flavored electrolyte drink. |
Climate changes triggered immigration to America in the 19th century, study finds Posted: 21 Nov 2017 06:52 AM PST From Trump to Heinz, some of America's most famous family names and brands trace their origins back to Germans who emigrated to the country in the 19th century. Researchers have now found that climate was a major factor in driving migration from Southwest Germany to North America during the 19th century. |
New human mobility prediction model offers scalability, requires less data Posted: 21 Nov 2017 06:51 AM PST A new method to predict human mobility - which can be used to chart the potential spread of disease or determine rush hour bottlenecks -- has been developed. |
New malaria parasites identified in wild bonobos Posted: 21 Nov 2017 06:51 AM PST Malaria parasites, although widespread among wild chimpanzees and gorillas, have not been detected in bonobos, a chimp cousin. Although the researchers saw evidence of a new malaria species in bonobos, it was limited to one small area of their range. This work helps the hunt for biological loopholes to potentially exploit the life history of ape pathogens to better understand how they cross over to humans. |
Tempting your taste buds: Food cues entice consumers to overeat Posted: 21 Nov 2017 06:51 AM PST The mouth-watering aroma of juicy burgers and crispy fries, and the eye-catching menu signs with delicious food pictures can tempt many hungry patrons to stop at fast-food restaurants. |
Revolutionary imaging technique uses CRISPR to map DNA mutations Posted: 21 Nov 2017 06:51 AM PST A new nanomapping technology could transform the way disease-causing genetic mutations are diagnosed and discovered. |
New details on aged brain, Alzheimer's and dementia Posted: 21 Nov 2017 06:51 AM PST In a comprehensive analysis of samples from 107 aged human brains, researchers have discovered details that will help researchers better understand the biological bases for Alzheimer's disease and dementia in older populations. |
Cinnamon turns up the heat on fat cells Posted: 21 Nov 2017 06:51 AM PST New research has determined how a common holiday spice -- cinnamon -- might be enlisted in the fight against obesity. |
Imaging technique unlocks the secrets of 17th century artists Posted: 21 Nov 2017 06:51 AM PST The secrets of 17th century artists can now be revealed, thanks to 21st century signal processing. Using modern high-speed scanners and the advanced signal processing techniques, researchers are peering through layers of pigment to see how painters prepared their canvasses, applied undercoats, and built up layer upon layer of paint to produce their masterpieces. |
Ice shapes the landslide landscape on Mars Posted: 21 Nov 2017 06:51 AM PST How good is your Martian geography? Scientists now explain the extent to which ice may have been an important medium of lubrication for landslides on Mars. |
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