Molecular crystal structures pack it in

Autopack rotates crystal structures in 3D space to minimize their molecules’ projected area. After convergence, it is possible to extract the crystal’s associated packing motif based on relative interplanar angles. In this example, the stacks found after the optimization procedure indicate the structure’s beta packing motif. Credit: Lawrence Livermore National Laboratory Whether organic chemists are […]

Highest levels of microplastics found in molluscs, new study says — ScienceDaily

Mussels, oysters and scallops have the highest levels of microplastic contamination among seafood, a new study reveals. The research — led by researchers at Hull York Medical School and the University of Hull — looked at more than 50 studies between 2014 and 2020 to investigate the levels of microplastic contamination globally in fish and […]

Are two phases of quarantine better than one?

New research into this question shows that the second wave of an epidemic is very different if a population has a homogenous distribution of contacts, compared to the scenario of subpopulations with diverse number of contacts. The research, by American authors from Oakland University, Novi High School, and California Polytechnic State University, used a simulation […]

Team finds surprising connection between dinosaurs and mammals

A complete sabre-toothed canine from a gorgonopsian from Zambia. This specimen includes both the crown (top) and root (bottom) of the tooth. | . Credit: Megan Whitney. When thinking of fierce predators of the past, it’s difficult not to imagine dinosaurs, considering theropods are well known for having blade-like teeth with serrated cutting edges used […]

Secondary bloodstream infections associated with severe COVID-19 — ScienceDaily

People with severe COVID-19 and a secondary blood infection were significantly sicker upon hospital admission, had longer hospital stays and poorer outcomes, according to a Rutgers study. The study, published in the journal Clinical Infectious Diseases, is the first to assess the microbiology, risk factors and outcomes in hospitalized patients with severe COVID-19 and secondary […]

Global trial reveals life saving drug for acute myeloid leukemia

A landmark paper published today in the New England Journal of Medicine describes the results from a global trial across 148 sites in 23 countries, showing a 30 per cent improvement in survival in patients with acute myeloid leukemia (AML).  The Phase 3 clinical trial called QUAZAR, showed that a drug, called CC-486, significantly improved […]

If a planet has a lot of methane in its atmosphere, life is the most likely cause

Artist’s conception of early Earth after several large asteroid impacts, moving magma on to the surface. Credit: Simone Marchi/SwRI The ultra-powerful James Webb Space Telescope will launch soon. Once it’s deployed and in position at the Earth-Sun Lagrange Point 2, it’ll begin work. One of its jobs is to examine the atmospheres of exoplanets and […]

How British people weathered exceptionally cold winters

As global temperatures rise, snowy winters could become a thing of the past in much of the UK, according to a recent Met Office analysis. Aside from depriving schoolchildren of the sheer fun of a snow day, climate change could lead the popular imaginary of British winters into uncharted territory. Throughout the UK’s history, some […]