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כתבות אחרונות מאתר 'Phys'
Phys

Diet reveals what life was like 2,700 years ago in an Italian community: Gender inequality, social status and migration‎

An international study led by the Universities of Córdoba and Pisa used isotopic analysis to reconstruct the dietary traces left in human remains found in an Italian necropolis, revealing what daily life was like in that community 2,700 years ago. Despite the passage of time, certain patterns of behavior recur: diet, human mobility, gender differences and the role of funerary symbolism in signifying social status.

04:02
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Phys

Seawater samples may offer early clues to changing reef health‎

Doctors can often detect diseases in humans using minimally invasive methods, like blood or urine tests, before symptoms become severe. Now, researchers at the Woods Hole Oceanographic Institution (WHOI) are applying a similar concept to coral reefs, showing that the water surrounding reefs contains chemical and microbial signals that could reveal changes in ecosystem health long before those changes are visible.

03:50
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Phys

Water's local asymmetry drives proton hopping between molecules, simulations reveal‎

Complex simulations—the most intricate of their kind to date—carried out by an international research team led by scientists at Heidelberg University's Institute for Physical Chemistry, have revealed how water governs the way protons move through it. Using their modeling, researchers from Cambridge (U.K.), Bochum, Dijon (France) and Heidelberg were able to trace, in full quantum detail, the movements of a proton shared among six water molecules. At its core, the work addresses how a proton moves through water: not as a single particle drifting along, but by "hopping" from one molecule to the next.

03:50
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Phys

Digital revolution forcing archaeology to rethink research data management‎

Archaeological excavations generate a vast quantity of documents of various types and formats, which constitute a scientific heritage of great value. However, the way this data is organized, documented and preserved remains highly varied. This is the main conclusion of the article "Research data management practices and perspectives among Catalan archaeologists: a qualitative approach," published in the Journal of Documentation.

03:29
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Phys

Border crossings shut as heavy snow coats Argentine Andes‎

Heavy snowfall in the Argentine Andes has forced more than 100 people to evacuate and stalled almost 1,000 trucks on snow-covered roads, while flights were rerouted Monday.

03:04
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Phys

How international aid fragmentation affects corruption in developing countries‎

An SKKU research team led by Professor Travers B. Child of the SKK Graduate School of Business (SKK GSB) has become the first in the world to use micro-level data to demonstrate that aid fragmentation—the phenomenon in which numerous international aid agencies operate simultaneously in a single region—can deepen administrative corruption in developing countries. The study was conducted jointly with Professor Austin L. Wright of the University of Chicago and Professor Yun Xiao of the University of Gothenburg.

02:44
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Phys

When polymers meet primitive membranes: How molecular cooperation may have helped life begin‎

A new study suggests that simple molecules on early Earth may have worked together to create more stable, cell-like structures, offering fresh clues about one of science's biggest questions: how life began. Led by Dr. Moran Frenkel-Pinter of Hebrew University and her postdoctoral researcher, Dr. Rotem Edri, the research shows that two types of simple molecules, fatty acids and hydroxy acids, can combine to create structures that are stronger and more stable than either molecule can form alone.

02:44
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Phys

Tropical species near thermal limits as global warming compresses safety margins‎

With global warming and extreme weather intensifying, can animals raise their thermal tolerance to cope with a continuously warming environment? A joint research project by the Division of Science at Lingnan University and an international research team conducted experiments on tropical intertidal snails that live under the scorching sun.

02:25
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Phys

How changing environments can preserve an ancient microbial survival strategy‎

A research group led by Tetsuhiro Hatakeyama from the Earth-Life Science Institute (ELSI) at the Institute of Science Tokyo has revealed how a seemingly self-destructive survival strategy could persist in yeast for hundreds of millions of years. By combining population dynamics theory with comparative experimental observations, the team found that alternating periods of nutrient-rich conditions and starvation can stabilize this unusual behavior over evolutionary timescales. The findings were published in the Journal of the Royal Society Interface.

02:25
תפריט כתבה
Phys

Seabirds trade their own survival to raise more chicks after energy-intensive breeding seasons‎

Wild seabirds that face high energy demands during the breeding season go on to migrate farther and raise more chicks the next year, but at a cost to their own survival. An international team led by researchers from Nagoya University raised the energy cost of flight for some birds and tracked them through the next year of their annual cycle.

02:03
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