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כתבות אחרונות מאתר 'Phys'
Phys

Is California really 100% drought-free for the first time in 25 years? Yes and no: Here's why‎

For the second time in the past two weeks, the U.S. Drought Monitor, a prominent national report, has classified 100% of California as being drought-free. That's a rating that hasn't occurred in 25 years.

01:29
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Phys

Tiger sharks gather to mate during Maui's whale season, finds research‎

A team of shark researchers from the University of Hawaiʻi at Mānoa has solved a long-standing mystery, identifying the first-ever documented mating hub for tiger sharks.

23:58
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Phys

New interactive map models dust exposure from shrinking Great Salt Lake‎

Most people can imagine why a shrinking Great Salt Lake would mean unhealthy dust storms for the Wasatch Front, or why refilling the lake through water conservation could reduce dust exposure. Now, there is a data-based modeling tool to visualize it, hosted at the University of Utah's Wilkes Center for Climate Science & Policy.

22:28
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Phys

Neutralizing extracellular electron transport disarms antibiotic-resistant bacteria, restores healing in chronic wounds‎

An international team of scientists, led by Nanyang Technological University, Singapore (NTU Singapore), has discovered a new method that could speed up the healing of chronic wounds infected by antibiotic-resistant bacteria.

22:28
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Phys

Imaging technique captures ultrafast electron and atom dynamics in chemical reactions‎

During chemical reactions, atoms in the reacting substances break their bonds and re-arrange, forming different chemical products. This process entails the movement of both electrons (i.e., negatively charged particles) and nuclei (i.e., the positively charged central parts of atoms). Valence electrons are shared and re-arranged between different atoms, creating new bonds.

20:57
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Phys

Most beef cattle in South America experience hundreds to thousands of hours of heat-related discomfort each year: Study‎

A new study has quantified, for the first time, how much heat stress beef cattle actually experience across South America—as cumulative time spent in heat-related discomfort.

20:57
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Phys

Scientists transform enigmatic cell structures into devices for recording RNA activity‎

Scientists can peer into cells to get a limited view of their activity using microscopes and other tools. However, cells and the molecular events within them are dynamic, and developmental processes, disease progression and certain molecular cues are still difficult to discern. Ideally, scientists could leverage a system to obtain an unbiased record of a genome's functional output, showing how cells respond to different conditions over time to gain useful insights. Now, it seems a group of researchers may have found a way to do just that.

20:57
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Phys

Exploring the multifaceted effects of inward foreign direct investment on new venture creation‎

Inward foreign direct investment (IFDI) is known to be a significant driver of local economic development, especially in fostering entrepreneurship. Current studies have conducted in-depth investigations into the impact of IFDI on the survival, productivity, and innovation of established firms.

20:57
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Phys

Temperature shifts alter honeybee behavior but leave native bees unchanged‎

Research from Monash University explores how rising temperatures and growing urban environments can affect behavior in native Australian bees and the European honeybee.

20:57
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Phys

Nationwide racial bias shapes media reporting on gun violence, study suggests‎

Mass shootings in white-majority neighborhoods received roughly twice the news coverage of mass shootings in neighborhoods where a majority of residents were people of color, while coverage of police-involved shootings was disproportionately high in majority-minority communities, according to new research.

19:27
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