Specific bacteria in the gut prompt mother mice to neglect their pups
As scientists learn more about the microorganisms that colonize the body—collectively called the microbiota—one area of intense interest is the effect that these microbes can have on the brain. A new study led by Salk Institute scientists has identified a strain of E. coli bacteria that, when living in the guts of female mice, causes them to neglect their offspring.
Dewdrops on a spiderweb reveal the physics behind cell structures
As any cook knows, some liquids mix well with each other, but others do not. For example, when a tablespoon of vinegar is poured into water, a brief stir suffices to thoroughly combine the two liquids. However, a tablespoon of oil poured into water will coalesce into droplets that no amount of stirring can dissolve. The physics that governs the mixing of liquids is not limited to mixing bowls; it...
Islands without structure inside metal alloys could lead to tougher materials
An international team of researchers produced islands of amorphous, non-crystalline material inside a class of new metal alloys known as high-entropy alloys.
Accurate drug dosages with proton traps
Researchers at Linköping University, Sweden, have developed a proton trap that makes organic electronic ion pumps more precise when delivering drugs. The new technique may reduce drug side effects, and in the long term, ion pumps may help patients with symptoms of neurological diseases for which effective treatments are not available. The results have been published in Science Advances.
Genes that dance to the circadian rhythm
Scientists at EPFL have made breakthrough discoveries on the circadian clock and how it affects gene expression. Some of the findings suggest a biological underpinning for different behaviors in people, such as morning people, nappers, evening people, night owls etc.
By changing their shape, some bacteria can grow more resilient to antibiotics
New research led by Carnegie Mellon University Assistant Professor of Physics Shiladitya Banerjee demonstrates how certain types of bacteria can adapt to long-term exposure to antibiotics by changing their shape. The work was published in the journal Nature Physics.
Startup develops yeast-based COVID-19 diagnostic test
Incubated at the University of Campinas (UNICAMP) in the state of São Paulo, Brazil, and supported by São Paulo Research Foundation- FAPESP's Innovative Research in Small Business Program (PIPE), BIOinFOOD is a startup that is developing a rapid COVID-19 diagnostic test based on a patent application filed by students at UNICAMP's Genomics and Bioenergy Laboratory.
Scientists look to soils to learn how forests affect air quality, climate change
Trees are often heralded as the heroes of environmental mitigation. They remove carbon dioxide from the atmosphere, which slows the pace of climate change, and sequester nutrients such as nitrogen, which improves water and air quality.
Americans like sports, but heterosexual men especially do
Nearly nine out of 10 Americans say they enjoy sports at least a little, but heterosexual men more commonly identify as passionate sports fans, a new study suggests.
New study investigates photonics for artificial intelligence and neuromorphic computing
Scientists have given a fascinating new insight into the next steps to develop fast, energy-efficient, future computing systems that use light instead of electrons to process and store information—incorporating hardware inspired directly by the functioning of the human brain.
How is human behavior impacting wildlife movement?
For species to survive in the wild, maintaining connectivity between populations is critical. Without 'wildlife corridors,' groups of animals are isolated, unable to breed and may die out. In assessing wildlife connectivity, many aspects of the landscape are measured, but the impact of human behavior has largely been overlooked. Now, an international team led by the University of Göttingen and...
Coiling them up: Synthesizing organic molecules with a long helical structure
Scientists at Tokyo Institute of Technology (Tokyo Tech) produced and extensively characterized novel organic molecules with a long helical structure. Unlike previous helical molecules, these longer compounds exhibit special interactions between coils that could give rise to interesting optical and chemical properties with applications in light polarization, catalysis, and molecular springs.
Territorial, expert navigators: The black howler monkeys of Mexico
An international team of researchers led by Oxford Brookes University shows that black howler monkeys in Mexico not only remember where important events took place in their habitat, but also when to return to such locations.
Methane emissions from coal mines are higher than previously thought
The amount of methane released into the atmosphere as a result of coal mining is likely much higher than previously calculated, according to research presented at the annual meeting of the American Geophysical Union recently.
Archaeologist argues the Chumash Indians were using highly worked shell beads as currency 2,000 years ago
As one of the most experienced archaeologists studying California's Native Americans, Lynn Gamble knew the Chumash Indians had been using shell beads as money for at least 800 years.
New psychological model predicts who panic-buys during times of crisis
Drawing on animal-foraging theory, a new model predicts psychological factors that may lead to panic buying during times of crisis. The model is largely supported by real-world data from the COVID-19 pandemic. Richard Bentall of the University of Sheffield, England, and colleagues presented these findings in the open-access journal PLOS ONE on January 27.
Researchers demonstrate how to measure student attention during remote learning
The COVID-19 pandemic has made home offices, virtual meetings and remote learning the norm, and it is likely here to stay. But are people paying attention in online meetings? Are students paying attention in virtual classrooms? Researchers Jens Madsen and Lucas C. Parra from City College of New York, demonstrate how eye tracking can be used to measure the level of attention online using standard...
Local emissions amplify regional haze and particle growth
New particle formation (NPF) is a major source of aerosol particles in the global atmosphere. In polluted megacities, such as Beijing, the role of new particle formation events and their contribution to haze formation through subsequent growth is still unclear.
High-speed holographic fluorescence microscopy system with submicron resolution
The National Institute of Information and Communications Technology (NICT), Tohoku University, Toin University of Yokohama, and Japan Science and Technology Agency (JST) have succeeded in developing a scanless high-speed holographic fluorescence microscopy system with submicron resolution for a 3-D space. The system is based on digital holography.
Yangtze River observational system to improve East Asian rainy season forecasting
Researchers have completed the first ever multi-level hydrological tracking of the Yangtze River from the ground, air and space in order to investigate the properties of cloud formation during the mei-yu—an intense rainy season that forms part of East Asia's summer monsoon. The effort should permit greater understanding of the mei-yu precipitation process and thus enable much more accurate...
New technology to detect bitter almonds in real time
Who hasn't at some point been chewing on an almond and tasted an unpleasant and unexpected aftertaste that has nothing to do with the taste we are used to from one of the most consumed nuts in the world? The culprit has a name: amygdalin, a diglucoside that, when in contact with enzymes present in saliva, breaks down into glucose, benzaldehyde (the cause of the bitter taste) and hydrogen cyanide.
Apps help integration and health of migrants
A new study has found that mobile apps can play a vital role in helping immigrants integrate into new cultures, as well as provide physical and mental health benefits.
Reindeer lichens are having more sex than expected
In northern Canada, the forest floor is carpeted with reindeer lichens. They look like a moss made of tiny gray branches, but they're stranger than that: they're composite organisms, a fungus and algae living together as one. They're a major part of reindeer diets, hence the name, and the forest depends on them to move nutrients through the ecosystem. They also, at least in parts of Quebec, are...
Direct coherent multi-ink printing of fabric supercapacitors
Fiber-shaped supercapacitors are a desirable high-performance energy storage technology for wearable electronics. The traditional method for device fabrication is based on a multistep approach to construct energy devices, which can present challenges during fabrication, scalability and durability. To overcome these restrictions, Jingxin Zhao and a team of scientists in physics, electrochemical...
72-year-old Scotch whisky fetches over $54,000 in auction
A 72-year-old bottle of Glen Grant single malt whisky from Scotland fetched more than $54,000 in an auction in Hong Kong on Friday.