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38 articles from PhysOrg

March Madness bracket analysis shows picking final four first leads to better brackets

Data science researchers at the University of Illinois have some March Madness advice based on new research: Pick top-seeded teams as the Final Four in your March Madness bracket and work backward and forward from there. If you are going to submit multiple brackets—as you can in the ESPN, CBS Sports and Yahoo Challenges—starting with the Final Four is still a good strategy, but make sure you...

Study find delta helps to decrease the impact of river flooding

Most coastal cities and ports face a double threat from storm surge and river flooding. Infrastructure development along waterways and sea-level rise increase vulnerability for these communities. In a recent publication, The Propagation of Fluvial Flood Waves Through a Backwater-Estuarine Environment, historical data is examined to determine how to reduce the risk of coastal river flooding to...

Amber specimens reveal origin of long mouthpart of scorpionflies

An international research group led by Prof. Wang Bo from the Nanjing Institute of Geology and Palaeontology of the Chinese Academy of Sciences (NIGPAS) has found a new genus, including two new aneuretopsychid species from early Late Cretaceous (99 million years ago) Burmese amber, which reveals new anatomically significant details of the elongate mouthpart elements.

Divorced parents may impact some teens' academics

Parental divorce is associated with a lower grade point average (GPA) among adolescents, with a stronger association seen in teens with more educated mothers, according to a study published March 4, 2020 in the open-access journal PLOS ONE by Sondre Aasan Nilsen of the Norwegian Research Centre (NORCE) and the University of Bergen, Norway, and colleagues.

The persistence of pay inequality: The gender pay gap in an anonymous online labor market

The U.S. is witnessing a dramatic rise in nontraditional 'gig economy' labor markets where workers are hired for single projects often on a short-term basis. An estimated 0.4% of U.S. adults are currently receiving income from such platforms each month. Research conducted based on collaboration between Columbia University Mailman School of Public Health and CloudResearch.com examined the work of...

Curiosity Mars rover snaps its highest-resolution panorama yet

NASA's Curiosity rover has captured its highest-resolution panorama yet of the Martian surface. Composed of more than 1,000 images taken during the 2019 Thanksgiving holiday and carefully assembled over the ensuing months, the composite contains 1.8 billion pixels of Martian landscape. The rover's Mast Camera, or Mastcam, used its telephoto lens to produce the panorama; meanwhile, it relied on its...

Study: Temporary work visas could deter illegal immigration of Mexican migrants

A new study examined how increasing the number of visas available to potential migrants would affect unauthorized immigration from Mexico to the United States. Current U.S. policy bans people who are deported from receiving legal status for a period of time; this policy, called a legal entry ban, is designed to deter unauthorized immigration, but may not work for many Mexican immigrants. The study...

Energy researchers invent error-free catalysts

A team of researchers from the University of Minnesota, University of Massachusetts Amherst, University of Delaware, and University of California Santa Barbara have invented oscillating catalyst technology that can accelerate chemical reactions without side reactions or chemical errors. The groundbreaking technology can be incorporated into hundreds of industrial chemical technologies to reduce...

Using molecules to draw on quantum materials

Over millennia, civilizations progressed through the Stone, Bronze, and Iron Ages. Now the time has come for quantum materials to change the way we live, thanks in part to research conducted at the Institut National de la Recherche Scientifique (INRS) and McGill University.

Researchers gather interventions addressing 'word gap' into special edition of journal

Some children in the U.S. grow up under severe disadvantage in terms of the amount and quality of language they are exposed to in their earliest years. Researchers have documented that some children are exposed to roughly 30 million fewer words than other children during years that are critical for learning language. Researchers call this the "word gap" and say it portends lifelong consequences.

Car congestion outweighs scooter scourge on city streets

"Scooter clutter" has been a concern amplified by media reports in urban areas where micromobility has entered the landscape, with large numbers of dockless scooters and shared e-bikes on city streets and sidewalks. But a recent study finds that motor vehicles are still the main offender by far when it comes to blocking access by other travelers.

New type of indoor solar cells for smart connected devices

In a future where most things in our everyday life are connected through the internet, devices and sensors will need to run without wires or batteries. In a new article in Chemical Science, researchers from Uppsala University present a new type of dye-sensitised solar cells that harvest light from indoor lamps.

Destruction of an Atlantic rain forest fragment raises the local temperature

A study conducted in Brazil by researchers at the University of São Paulo (USP) and the University of Campinas (UNICAMP) shows that if 25% of an Atlantic rainforest fragment that is approximately 1 hectare is deforested, then the local temperature will increase by 1 °C. Clear-cutting the entire fragment would increase the local temperature by as much as 4 °C. The findings are published in the...