Cell Published April 25, 2019 | 11:00 EDT (News release from Cell Press and Ohio State University) New research provides the most complete account to date of the viruses impacting the world’s oceans. The study brings total known marine viral populations within the ocean close to 200,000 – work that will help scientists better understand their […]

Proceedings of the Royal Society B: Biological Sciences Published April 24, 2019 | 17:01 EDT (Brief from the Royal Society) Abundance of two co-occurring intertidal sea-star species shifted during the recent outbreak of sea star wasting disease along North America’s west coast. Pisaster ochraceus declined in abundance and size during the outbreak, while rare Evasterias troschelii became numerically dominant. […]

Science Robotics Published April 24, 2019 | 14:00 EDT (Summary from AAAS) By embedding magnetic microparticles into soft and flexible material, scientists have built 3-D magnetic structures capable of flexible movements, like crawling, swimming or gripping. Increasing the range of movement in magnetic microrobots may help broaden their applicability in fields like healthcare, for procedures like […]

Nature Published April 24, 2019 | 13:00 EDT  Climate warming–related, regional extinctions of cold-blooded animals have been twice as common in the ocean as on land. In contrast, habitat fragmentation and changes in land use are driving regional extinctions of land species, which rely on access to cool refuges. Canadian co-author: Jennifer Sunday, McGill University – […]

JAMA Published April 23, 2019 | 11:00 EDT (News release from JAMA Network) Americans sat an extra hour each day in 2016 compared to 2007. Total time spent sitting daily increased to 8.2 hours for adolescents and 6.4 hours for adults, with 59 to 65 per cent sitting while watching television or videos at least two […]

PLOS One  Published April 17, 2019 | 14:00 EDT (News releases from PLOS and University of Alberta) A study of more than 2,400 Canadian families suggests that among preschoolers, spending two hours or more of screen time per day is linked to clinically significant behavioural problems. Compared with children who had less than 30 minutes per day […]

PLOS One  Published April 17, 2019 | 14:00 EDT (News release from PLOS) The complete skeletal remains of a new species of Mongolian dinosaur fill in a gap in the evolution of hadrosaurs. Gobihadros mongoliensis is represented by numerous specimens, including one virtually complete skeleton measuring almost three meters long. Anatomical analysis reveals that it doesn’t […]

Cell Reports Published April 16, 2019 | 11:00 EDT (News release from University of Toronto) Glioblastoma is one of the most devastating forms of cancer, with few existing treatment options. It is also a leading cause of cancer-related death in children and young adults. Scientists have reverse engineered brain cancer stem cells gene by gene, uncovering multiple […]

PLOS Pathogens Published April 11, 2019 | 14:00 EDT (News release from PLOS) The increased survival of white blood cells called neutrophils is associated with changes in the intestinal microbiome of HIV-infected individuals. Lactobacillus bacteria, which are commonly found in yoghourt and probiotics, may shorten neutrophil lifespan, and could be an effective therapy to reduce intestinal inflammation […]

Royal Society Open Science Published April 10, 2019 | 17:01 EDT (Brief from the Royal Society) Canada jays (Perisoreus canadensis) rely on perishable food cached in the fall to fuel late-winter reproduction. Forty years of breeding data from a population at the southern edge of the bird’s range show that frequency of fall freeze–thaw events leads […]

Nature Published April 10, 2019 | 13:00 EDT (News release from Nature Research Press) Early observations from the ExoMars Trace Gas Orbiter show that, in contrast to previous work, the orbiter did not detect methane on Mars, which raises questions about the reasons for these discrepancies. A second paper describes a rare Martian global dust storm, which […]

Cell Host & Microbe Published April 10, 2019 | 11:00 EDT (News release from University of Montreal Hospital Research Centre) Researchers used a molecular “can opener” to expose parts of the HIV virus envelope that can be targeted by antibodies, revealing the virus’s inner structure and a previously unknown virus shape. The new information provides a […]

PLOS Biology Published April 9, 2019 | 14:00 EDT (News release from PLOS) A coin toss has exposed a problem that may affect many biomedicine studies. In many of these studies, small sample sizes and frequent loose thresholds for accepting statistical significance can lead to high rates of false-positive results and overestimation of true effects. Contrary to […]