Latest Science News -- ScienceDaily
Graphene in zero G promises success in space
Sat, 16 Dec 2017 16:35:31 EST
Experiments testing graphene for two different space-related applications have shown extremely promising results.
Study prompts new ideas on cancers’ origins
Sat, 16 Dec 2017 15:43:03 EST
Cancer therapies often target cells that grow and divide rapidly, such as stem cells, but in studying how stomach cancers occur, researchers found that even when the stomach isn't able to make stem cells, other cells in the stomach can begin to divide and contribute to precancerous lesions.
Nanostructures control heat transfer
Sat, 16 Dec 2017 15:42:18 EST
For the first time, scientists have succeeded in precisely controlling temperature-dependent thermal conductivity with the help of polymer materials. These advanced functional materials were initially produced for laboratory experiments. The findings are of great relevance to the development of new concepts of thermal insulation.
Screening could catch a quarter of hip fractures before they happen
Sat, 16 Dec 2017 15:42:14 EST
Community screening for osteoporosis could prevent more than a quarter of hip fractures in older women.
Easier paths to quantum-based techology
Fri, 15 Dec 2017 14:57:11 EST
Engineers have shown that a widely used method of detecting single photons can also count the presence of at least four photons at a time. The researchers say this discovery will unlock new capabilities in physics labs working in quantum information science around the world, while providing easier paths to developing quantum-based technologies.
Drinking hot tea every day linked to lower glaucoma risk
Fri, 15 Dec 2017 14:33:03 EST
Drinking a cup of hot tea at least once a day may be linked to a significantly lower risk of developing the serious eye condition, glaucoma, finds a small study.
A new theory to describe widely used material
Fri, 15 Dec 2017 14:33:00 EST
A new theoretical model explains the coupling between ions and electrons in the widely used conducting polymer PEDOT:PSS. The model has profound implications for applications in printed electronics, energy storage in paper, and bioelectronics.
Discovery could reduce cost, energy for high-speed Internet connections
Fri, 15 Dec 2017 14:32:55 EST
Researchers have developed an optical medium in which multiple beams of light can autocorrect their properties without affecting other beams. This could lead to a dramatic reduction in the cost and energy consumption of high-speed internet communications.
Artificial intelligence used to identify bacteria quickly and accurately
Fri, 15 Dec 2017 14:32:52 EST
Microscopes enhanced with artificial intelligence (AI) could help clinical microbiologists diagnose potentially deadly blood infections and improve patients' odds of survival, according to microbiologists.
Nanodiscs catch misfolding proteins red-handed
Fri, 15 Dec 2017 13:51:47 EST
When proteins misfold, accumulate and clump around insulin-producing cells in the pancreas, they kill cells. Now, researchers have obtained a structural snapshot of these proteins when they are most toxic, detailing them down to the atomic level.
Complex, old-growth forests may protect some bird species in a warming climate
Fri, 15 Dec 2017 13:51:22 EST
Old forests that contain large trees and a diversity of tree sizes and species may offer refuge to some types of birds facing threats in a warming climate, scientists have found.
What does hair loss have to teach us about cancer metastasis?
Fri, 15 Dec 2017 13:51:15 EST
Researchers have identified a signaling pathway regulating cell migration and metastasis. Unexpected hair loss in a preclinical model helped them to identify the pathway. When cells within the skin that maintain hair follicles migrate too often, hair follicle maintenance is disrupted. Researchers speculated that this pathway might also play a role in cancer cell migration. Indeed, they showed that disrupting this pathway in preclinical models increased metastasis.
Genetic instructions from mom set the pattern for embryonic development
Fri, 15 Dec 2017 12:47:39 EST
A new study indicates an essential role for a maternally inherited gene in embryonic development. The study found that zebrafish that failed to inherit specific genetic instructions from mom developed fatal defects earlier in development, even if the fish could make their own version of the gene.
Our memory shifts into high gear when we think about raising our children, new study shows
Fri, 15 Dec 2017 12:11:00 EST
Human memory has evolved so people better recall events encountered while they are thinking about raising their offspring, according to a new study.
After searching 12 years for bipolar disorder's cause, research team concludes it has many
Fri, 15 Dec 2017 12:10:58 EST
Nearly six million Americans have bipolar disorder, and most have probably wondered why. After more than a decade of studying over 1,100 of them in-depth, a team of scientists has an answer -- or rather, seven answers.
How much soil goes down the drain: New data on soil lost due to water
Fri, 15 Dec 2017 12:10:55 EST
According to a new study, almost 36 billion tons of soil is lost every year due to water, and deforestation and other changes in land use make the problem worse. The study also offers ideas on how agriculture can change to become a part of the solution from being part of the problem.
Heavy-petroleum fuels raising vanadium emissions
Fri, 15 Dec 2017 12:10:52 EST
Human emissions of the potentially harmful trace metal vanadium into Earth's atmosphere have spiked sharply since the start of the 21st century due in large part to industry's growing use of heavy oils, tar sands, bitumen and petroleum coke for energy, a new Duke study finds. These emissions now exceed those from all natural sources combined. Growing evidence suggests exposure to vanadium-rich aerosols can impair respiratory functions and exacerbate conditions such as asthma or COPD.
Erectile dysfunction is red flag for silent early cardiovascular disease
Fri, 15 Dec 2017 12:10:16 EST
Despite decades long prevention and treatment efforts, cardiovascular (CV) disease continues to be the leading cause of death worldwide. Early detection of CV disease can allow for interventions to prevent heart attack and stroke, including smoking cessation, medications such as a statins, blood pressure control, weight management, exercise, and improved diet. A new study focuses on a novel risk factor for cardiovascular disease that rarely receives attention -- erectile dysfunction.
Error-free into the quantum computer age
Fri, 15 Dec 2017 12:09:55 EST
Ion-trap technologies available today are suitable for building large-scale quantum computers, research shows. Scientists have introduced trapped-ion quantum error correction protocols that detect and correct processing errors.
3-D nanoscale imaging made possible
Fri, 15 Dec 2017 11:16:23 EST
Imaging at the nanoscale is important to a plethora of modern applications in materials science, physics, biology, medicine and other fields. Limitations of current techniques are, e.g. their resolution, imaging speed or the inability to look behind opaque objects with arbitrary shapes. Scientists have now demonstrated a method for meeting this challenge with stunning properties.