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כתבות אחרונות מאתר 'Phys'
Phys

'Sponge city' construction fuels major gains in urban biodiversity, study reveals‎

A research team led by Prof. Zhu Yongguan, a member of the Chinese Academy of Sciences (CAS) at the CAS Research Center for Eco-Environmental Sciences, has identified the mechanisms by which sponge city construction significantly enhances urban plant diversity, according to a study published in Cell Reports Sustainability on January 27.

17:39
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Phys

Tiny radio transmitters reveal a hidden survival tactic in birds‎

In Sturt National Park, near Tibooburra in central Australia where temperatures can range from freezing to nearly 50°C, there lives a small bird with a white back, forked tail and—as we've just discovered—a very clever strategy to survive its extreme environment.

17:39
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Phys

Open-access software tool helps researchers spot fake journals‎

Research papers in peer-reviewed academic journals are at the heart of academic integrity. New ideas and discoveries are vetted and checked by experts in the field as the boundaries of scientific knowledge are pushed forward. However, in recent years, there has been a rise in predatory journals, publications that exploit this model but skip the rigorous peer-review process entirely.

17:39
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Phys

CT scans unwrap secrets of ancient Egyptian life‎

Keck Medicine of USC radiologists use computed tomography (CT) scanners to diagnose and treat patients' diseases and injuries. Recently, however, this advanced technology was put to a far more novel use: examining the bodies of two ancient Egyptian mummies. Radiologists conducted full-body CT scans of two Egyptian priests, Nes-Min, circa 330 BCE, and Nes-Hor, circa 190 BCE, whose bodies had been preserved for more than 2,200 years.

17:39
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Phys

Weight-loss drugs are creating an environmental disaster—a new water-based method aims to change that‎

The world is in the middle of a peptide drug revolution. These short chains of amino acids—the building blocks of proteins—sit at the heart of some of the most successful medicines ever created, from weight-loss injections to advanced cancer therapies. Peptides are also used as crop treatments, veterinary drugs and even some cosmetic ingredients.

17:39
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Phys

Shared purpose outperforms specialization, study shows‎

A new study published in the Strategic Management Journal challenges long-standing assumptions about managerial specialization by examining when organizations perform better by having leaders collectively pursue multiple objectives rather than dividing responsibilities among them. Addressing the growing complexity of modern organizations—where financial, social, environmental, and technological goals increasingly coexist—the research introduces what the authors call the "common purpose advantage."

17:39
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Phys

Shrinking shellfish? Study uncovers acidic water risks in Indian River lagoon‎

Florida's Indian River Lagoon (IRL), one of the state's most ecologically productive estuaries, is facing a growing but invisible threat that could reshape its marine ecosystems. Over the past decade, the lagoon has suffered severe degradation caused by nutrient pollution, excessive freshwater runoff, harmful algal blooms (HABs), and declining water quality. These changes have led to the loss of tens of thousands of acres of seagrass and have negatively impacted shellfish, fish, dolphins, manatees and other key species.

17:39
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Phys

NASA targets a March launch of the moon rocket after test run reveals fuel leaks‎

NASA said Tuesday it will now target a March launch of its new moon rocket after running into exasperating fuel leaks during a make-or-break test a day earlier.

16:25
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Phys

New model predicts the melting of free-floating ice in calm water‎

A pair of US researchers have developed a new model to tackle a deceptively simple problem: how a small block of ice melts while floating in calm water. Using an advanced experimental setup, Daisuke Noto and Hugo Ulloa at the University of Pennsylvania have captured the intricate dynamics that underlie this everyday process—work that could ultimately pave the way for more accurate predictions of melting sea ice. The study has been published in Science Advances.

16:25
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Phys

Chromosome-level genome unlocks evolution of endangered fern Brainea insignis‎

Ferns, defined by large genomes, high chromosome counts, and pervasive aneuploidy as well as intraspecific polyploid complexity, diverge significantly from the classical genetic theories and analytical frameworks largely developed based on diploid models. Studies leveraging second-generation sequencing technologies have long centered on neutral variation in noncoding genomic regions.

16:25
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