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כתבות אחרונות מאתר 'Phys'
Phys

Q&A: Are polls trustworthy?‎

In the final stretch to the midterm elections, polls have come out tracking candidates' likelihood of victory at the local, state and federal levels. According to Tim Servinsky, project manager at Penn State Harrisburg's Center for Survey Research, polls built with the right questions and asked to the right population can be accurate and a critical tool for policymakers. However, particularly in the context of political polling, there are important details to keep in mind when reading and interpreting the most recent polling projections.

14:06
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Phys

How to keep electricity costs down amid uncertain federal policy‎

Keeping the lights on nationwide is a feat of engineering that depends on millions of miles of power lines and thousands of power-generation plants.

14:06
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Phys

Prosecutors invoke gender stereotypes in capital cases against women‎

In 2001, Brenda Andrew was convicted of murdering her husband, and in 2004 she was sentenced to death.

14:06
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Phys

As ancient oceans warmed, carbon export and fish productivity surged‎

Ocean fish stocks have been increasingly exploited over time, and remote sensing shows they have declined in the open ocean over the last three decades, particularly in the tropics. But it's uncertain how fish populations will fare in the future, as climate models show both increases and decreases in global trends by the end of this century.

14:06
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Phys

American jobs offer more autonomy—and more stress‎

American jobs have become increasingly stressful over the past two decades—but workers have also gained greater ability to exercise independence and make decisions at work.

14:06
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Phys

Philippine island fights rising seas with nature, not concrete‎

For years, residents of a flood-prone Philippine island north of Manila have elevated their homes atop layer upon layer of concrete, only to see floodwaters threaten them again.

12:35
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Phys

Why the WHO must declare climate change a public health emergency‎

Across the world, people have felt the impacts of climate change firsthand. The Northern Hemisphere has had another record-breaking summer season of heat and extreme weather events. The Southern Hemisphere now faces a summer of heat waves, flooding, wildfires and droughts. This is driven by decades of climate change, now supercharged by an unprecedented El Niño—the warm phase of the El Niño Southern Oscillation, which is a cyclical warming and cooling of the Pacific Ocean driven by changing trade winds, with global impacts on the climate.

11:04
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Phys

End of COVID-era SNAP emergency food assistance linked to increased child maltreatment rates‎

A new study has found that in U.S. counties that ended COVID-19 pandemic-era Supplemental Nutrition Assistance Program (SNAP) Emergency Allotments, child maltreatment rates went up. The findings from the study in the American Journal of Preventive Medicine suggest that changes to food assistance programs have consequences that extend beyond food security and also affect child and family well-being.

06:32
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