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כתבות אחרונות מאתר 'Phys'
Phys

Reversing soil degradation by 10% could feed 70 million more, global analysis finds‎

Factors such as erosion, dehydration and soil compaction are jeopardizing food supplies for broad swaths of the world's population, according to a study by the University of Bonn, the University of Minnesota, the University of Basel and Hamburg University of Technology. If human-made soil degradation were reversed by 10%, Earth's arable land could feed an extra 70 million or so people in purely mathematical terms. The findings have been published in the journal Nature Food.

12:09
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Phys

Nearly 3,000-year-old human remains unearthed in El Salvador‎

Archaeologists in El Salvador exhumed human remains believed to be nearly 3,000 years old Tuesday, the Ministry of Culture said.

11:47
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Phys

Danish fish fossil cliffs set to gain UNESCO status‎

Two Danish coastal cliffs where paleontologists have uncovered 55-million-year-old fossils of prehistoric wildlife are likely to gain World Heritage status as UNESCO's committee meets in South Korea.

11:22
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Phys

Private mission launches to extend life of out-of-gas communication satellites‎

A two-armed space robot blasted off on a private salvage operation Tuesday to slap life-extending jetpacks on old satellites running low on fuel thousands of miles up.

11:11
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Phys

Japan cities 'cruelly hot' for first time‎

Japanese cities are experiencing "cruelly hot days," a new meteorological term devised this year to warn people of intense heat above 40°C (104°F), with heatstroke alerts issued across nearly the entire country.

11:11
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Phys

2,000 volunteers join a painstaking effort to restore massive skeleton of prehistoric predator‎

Volunteers armed with chisels, brushes and protective goggles chip away at rock encasing the bones of a massive prehistoric amphibian in a glass-walled laboratory on the ground floor of Warsaw's Copernicus Science Centre.

10:59
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Phys

Analysis suggests debt may increase suicide risk‎

In a study published in Economic Inquiry that analyzed debt and income across U.S. counties at the onset of the Great Recession in 2008, investigators uncovered evidence that debt may affect the likelihood of suicide.

10:17
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Phys

Factors that affect the spininess of plants in different locations‎

Plants often grow spines, thorns and prickles to defend against animals that feed on them, but why this happens in some places more than others has remained a mystery. Research in New Phytologist shows that plant spininess is shaped by browsing mammals, both past and present, together with environmental conditions.

10:17
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Phys

Advance could enable enzymatic reactions for chemical manufacturing beyond the boiling point of water‎

Enzymes are proteins that can be harnessed for chemical manufacturing, but they are typically restricted to mild temperatures because proteins unfold and lose their function under heat. In new research published in Angewandte Chemie Novit, investigators found that a porous organic polymer can be used to encapsulate a lipase (a type of enzyme) and create a protective molecular cage that prevents enzyme denaturation, enabling efficient and recyclable reactions with high-melting solids at and above 100°C.

10:17
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Phys

Circulating microRNAs offer insights for detecting and treating cachexia in senior dogs‎

Cachexia—a syndrome characterized by progressive muscle wasting—affects both humans and dogs with chronic diseases such as cancer. A recent study in Molecular Oncology found that lower circulating levels of certain microRNAs—small noncoding RNAs that regulate gene expression—often indicate the presence of cachexia in senior dogs.

10:17
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