- PhysOrg
- 20/3/24 22:08
The European Space Agency said Tuesday that it is putting eight of its spacecraft into hibernation as it scales down operations during the coronavirus outbreak.
The European Space Agency said Tuesday that it is putting eight of its spacecraft into hibernation as it scales down operations during the coronavirus outbreak.
Changes in a specific type of sugarlike molecule, or glycan, on the surface of cancer cells help them to spread into other tissues, according to researchers at the University of California, Davis. Published March 23 in Proceedings of the National Academy of Sciences, the work could lead to diagnostic tests and new therapies to slow or stop the spread of cancers.
An analysis out of the University of Georgia details the relationship between consumer awareness and the attentiveness and care given to pollinator-friendly plant purchases.
Contaminants that occur together naturally in groundwater under certain geological conditions may heighten health risks for millions of North Carolinians whose drinking water comes from private wells, and current safety regulations don't address the problem, a new Duke University study finds.
Scientists have devised a simple new model that explains how the undesirable effects of urban heat islands vary across seasons. Their results could help cities in different climatic regions design heat mitigation strategies.
Almost 35 years ago, scientists made the then-radical proposal that colossal hydrogen bombs called novae go through a very long-term life cycle after erupting, fading to obscurity for hundreds of thousands of years and then building back up to become full-fledged novae once more. A new study is the first to fully model the work and incorporate all of the feedback factors now known to control these...
How do animals that help their brethren manage to prioritize those most in need? A study publishing March 24 in the open-access journal PLOS Biology by Karin Schneeberger and colleagues of the Universities of Bern in Switzerland and Potsdam in Germany, shows that rats can use odor cues alone to determine how urgently to provide food assistance to other rats in need.
People who tend to recognize similarities between people they know and people depicted in the media are more likely to believe common myths about sexual assault, according to a new study co-led by a Cornell researcher.
Plenty of fictional works like Mary Shelly's Frankenstein have explored the idea of swapping out a brain from one individual and transferring it into a completely different body. However, a team of biologists and engineers has now used a variation of the sci-fi concept, via computer simulation, to explore a core brain-body question.
Men are more prone to competitive risk taking and violent behavior, so what happens when the number of men is greater than the number of women in a population?
In recent years, the development of CRISPR technologies and gene-editing scissors in particular have taken the world by storm. Indeed, scientists have learned how to harness these clever natural systems in the biotech and pharmaceutical industries, among other areas.
Researchers from the University of Nebraska, University of Missouri, and Case Western Reserve University published a new paper in the Journal of Marketing that analyzes B2B e-negotiation communications in order to provide sellers with insights into buyers' behavioral responses to salespersons' communications.
A professor at Duke University says that the way spilled milk spreads across the floor can explain why economic downturns regularly occur.
With 3,000 known species and thousands more left to describe, the wasps of the subfamily Microgastrinae are the single most important group of parasitoids attacking the larvae of butterflies and moths, many of which are economically important pests. Consequently, these wasps have a significant impact on both the world's economy and biodiversity.
Whether it is a drug-resistant strain of bacteria, or cancer cells that no longer react to the drugs intended to kill them, diverse mutations make cells resistant to chemicals, and "second generation" approaches are needed. Now, a team of Penn State engineers may have a way to predict which mutations will occur in people, creating an easier path to create effective pharmaceuticals.
Shungite, a unique carbon-rich sedimentary rock from Russia deposited 2 billion years ago, holds clues about oxygen concentrations on Earth's surface at that time. Led by Professor Kurt Konhauser at the University of Alberta and Professor Kalle Kirsimäe at the University of Tartu, an international research team involving other colleagues from France, Norway, Russia, and USA, have found strikingly...
For the first time, a soft and stretchable organic thermoelectric module has been created that can harvest energy from body heat. The breakthrough was enabled by a new composite material that may have widespread use in smart clothing, wearable electronics and electronic skin.
China's fast economic growth and accompanying rise in food demand is driving an increase in water use for agriculture and industry, thus threatening the country's water security. The findings of a new study underscore the value and potential of technological adaptations to help design targets and incentives for water scarcity mitigation measures.
Scientists have revealed an important mechanism in the repair of DNA double-strand breaks, according to new research published today in eLife.
In the production of compounds, chemists have the fundamental goal of finding strategies that are most selective and avoid waste products. Breakthroughs in this area serve, among other things, to drive industrial innovation and drug development. In this context, allylic substitution reactions using catalysts made of so-called transition metals have already led to significant advances in science....
Phase matching condition is the key criteria for efficient nonlinear frequency conversion. Here, Scientists in China employed an additional periodic phase (APP) technique to meet the phase-matching condition in quartz crystal and experimentally demonstrated the efficient nonlinear frequency conversion from the visible to the deep-ultraviolet spectral region. The APP theory and generated visible to...
Lead halide perovskites are materials that emit light with a range of colors, but also suffer from poor moisture stability. Scientists in China demonstrated a new synthetic technique that can enable perovskites to emit bright fluorescent light by adding a dose of water, even when submerged under water for more than a year. Successful fabrication of the hydrated crystals as phosphors within...
National Institute for Materials Science has developed a solid material capable of slowly releasing hydrogen sulfide (H2S) and nitric oxide (NO) when exposed to air. These gases can induce physiologically favorable effects at low concentrations (e.g., reducing inflammation and expanding blood vessels). However, their medical use has been limited due to difficulties in storing them and regulating...
Researchers at Kyoto University's Institute for Integrated Cell-Material Sciences (iCeMS) have developed a device that moves fluids over corneal cells similarly to the movement of tears over a blinking eye. The scientists hope their findings, reported in the journal Lab on a Chip, will help improve ophthalmic drug development and testing, and advance understanding of how blinking affects the...
During the 1990s, Carver Mead and colleagues combined basic research in neuroscience with elegant analog circuit design in electronic engineering. This pioneering work on neuromorphic electronic circuits inspired researchers in Germany and Switzerland to explore the possibility of reproducing the physics of real neural circuits by using the physics of silicon.