Escherichia coli (E. coli) bacteria, pictured here, is a common gut bacteria in both humans and animals. There are many different strains, some of which cause disease. Credit: fusebulb/Shutterstock.com 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...
Researchers in the laboratories of Princeton University scientists Joshua Shaevitz, Howard Stone, and Sabine Petry have discovered that surface tension drives the liquid-like protein TPX2 to form globules that nucleate the formation of branching microtubules during cell division. The paper detailing these discoveries appeared in the Jan 28 issue of the journal Nature Physics....
Proposed hierarchical deformation mechanism paradigm for the equi- atomic CrCoNi-based HEAs subjected to increasing degrees of deformation. Elastic deformation, dislocation-mediated plasticity, twinning-induced plasticity, TRIP, and finally solid-state amorphization. Triggering the next mechanism re- quires the generation of additional defects, i.e., dislocations and/or point defects (vacancies). These multiple mechanisms can interact, leading to a synergy...
Comparison of growth of Caulobacter crescentus when exposed to an antibiotic (bottom) and not (top). Credit: Carnegie Mellon University 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...
Based on a reaction between yeast and the novel coronavirus, the test will rapidly detect the presence of SARS-CoV-2 in saliva and will be available by mid-2021 Credit: BIOinFOOD 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...
Soil researcher Adrienne Keller installing an ingrowth core at one of the forest plots. Credit: Rich Phillips, Indiana University 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...
Credit: Pixabay/CC0 Public Domain Being stretchy and squeezable may be the key to finding space for the brain in mammals, including humans. An international study, co-led by Flinders University's Vera Weisbecker, has revealed that marsupial mammals like possums, kangaroos, and wombats appear to have a lot of flexibility when it comes to accommodating their...
Scientists at Nagoya University, working in collaboration with NGK Spark Plug Co., Ltd., have developed a set of composite materials composed of layers of aluminum oxide (Al2O3) and tungsten carbide (WC) with zirconium atoms in between. These special Al2O3-WC composite materials outperform existing superhard materials at combining hardness with resistance to becoming permanently bent...
Credit: CC0 Public Domain Multi-disciplinary researchers at The University of Manchester have helped develop a powerful physics-based tool to map the pace of language development and human innovation over thousands of years—even stretching into pre-history before records were kept. Tobias Galla, a professor in theoretical physics, and Dr. Ricardo Bermúdez-Otero, a specialist in historical...
Expecting to fetch up to US$49,000 at auction, a 72-year-old bottle of Glen Grant single malt whisky from Scotland is displayed at a Bonhams auction preview in Hong Kong, Thursday, Jan. 28, 2021. Despite the economic uncertainty brought on by the pandemic, interest in the rare whisky remains high. Compared to other investment commodities,...