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102 articles from PhysOrg

Tooth fast, tooth curious? New study uncovers novel approach to plant-based diet, unique to long-necked dinosaurs

How did the largest animals to ever walk the Earth dominate their environments? By doing something totally revolutionary: keeping it simple. Published in BMC Ecology and Evolution, a new study led by Postdoctoral Research Scientist and periodic dinosaur dentist Dr. Keegan Melstrom at the Natural History Museum of Los Angeles County's Dinosaur Institute reveals that colossal sauropod dinosaurs, the...

Pay-for-performance incentives may put innovation at risk

Managers looking to create social conditions that lead to open, diversified and large networks—which are known to spur innovation—should avoid implementing pay-for-performance incentives that rest on short-term and quantitative performance metrics. According to new research published in Strategic Management Journal, such pay incentives result in more closed and smaller networks in...

Humans are guilty of breaking an oceanic law of nature: study

A new international study carried out by the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB) has examined the distribution of biomass across all life in the oceans, from bacteria to whales. Their quantification of human impact reveals a fundamental alteration to one of life's largest scale patterns.

Methane's short lifespan presents golden opportunity to quickly address climate change

Sébastien Biraud is a Berkeley Lab scientist leading an effort to identify and mitigate some of the largest emitters of methane in California's Southern San Joaquin Valley. Methane is a short-lived air pollutant and greenhouse gas capable of warming the atmosphere about 80 times as fast as the far longer-lived carbon dioxide over 20 years. This month the U.S. and European Union launched the...

'Tug of war' between cells: What happens when crucial connections are missing

The ability of cells to move together in harmony is crucial for numerous biological processes in our body, for example wound healing, or the healthy development of an organism. This movement is made possible by the connections between individual cells. These connections, in turn, are established by various protein molecules which transfer the necessary forces and information between neighboring...

New space telescope to peer back at the universe's first galaxies

On Dec. 18, NASA is set to launch its next flagship mission into space. The spacecraft, called the James Webb Space Telescope, brings a lot of risks: Its roughly 270-square-foot mirror, which will collect light streaming in from the far reaches of space, will launch folded up inside a rocket, then unfurl far from Earth.

Capturing the impact of human sewage on Earth's coastal ecosystems

A first-of-its-kind, high-resolution mapping analysis estimates the amounts of nitrogen and pathogens released into coastal ecosystems from human wastewater sources around the world. Cascade Tuholske (now affiliated with the Columbia Climate School) and colleagues at the University of California, Santa Barbara, present this research in the open-access journal PLOS ONE on November 10, 2021.

Uncovering racial disparities in nonfatal police shootings

An analysis of data from four U.S. states suggests that Black people may be more likely than white people to be nonfatally shot and injured by police in these states, and these disparities are greater than seen for fatal police shootings. Justin Nix of the University of Nebraska Omaha and John Shjarback of Rowan University in New Jersey present these findings in the open-access journal PLOS ONE on...

Mosaic brain evolution in guppies helps to explain vertebrate cognitive evolution

Researchers at Stockholm University have provided the first experimental evidence that brain regions can evolve independently of each other during cognitive evolution. This so called mosaic brain evolution was verified empirically in an artificial selection experiment with guppies (Poecilia reticulata) where telencephalon size (but no other regions) differed by 10 percent after only four...

How does homeschooling affect adolescents' character, health and well-being?

Compared to peers at public schools, adolescents who are homeschooled are more likely to report greater character strengths and fewer risky health behaviors later in life, but are less likely to attain a college degree, according to a new study published this week in the open-access journal PLOS ONE by Tyler VanderWeele of Harvard T.H. Chan School of Public Health, US, and colleagues.