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כתבות אחרונות מאתר 'Phys'
Phys

Dinos hatched eggs less efficiently than modern birds, researchers show‎

What do we really know about how oviraptors—bird-like but flightless dinosaurs—hatched their eggs? Did they use environmental heat, like crocodiles, or body heat from an adult, like birds? In a new Frontiers in Ecology and Evolution study, researchers in Taiwan examined the brooding behavior and hatching patterns of oviraptors. They also modeled heat transfer simulations of oviraptor clutches and compared hatching efficiency to modern birds. To do so, they experimented with a life-sized oviraptor incubator and eggs.

07:33
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Phys

It's coyote puppy season; here's what you need to know‎

Coyotes may be building dens and having litters of pups near you, according to new research from the University of Georgia. But chances are you won't see them—even if they are denning right next door. In one of the first studies of its kind, researchers followed 48 urban coyotes fitted with GPS tracking collars and located 20 dens throughout Atlanta. They found that more than half of the dens were in natural structures like burrows and fallen tree trunks. The work is published in Ecology and Evolution.

06:03
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Phys

Carbon trading cuts emissions better than carbon taxes‎

Carbon trading limits the amount of carbon dioxide an organization can emit. To emit more, organizations must buy unused carbon emission allowances from others. A global study has found that in the fight against climate change, carbon trading is more effective than carbon taxes—fees levied based on the amount of carbon dioxide emitted—in reducing carbon emissions.

04:33
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Phys

A milestone voyage for Antarctic science‎

Navigating monolithic icebergs, massive ocean waves and sub-zero snowstorms, CSIRO research vessel (RV) Investigator is a workhorse for Antarctic science. In just over 11 years and spread across seven voyages, the vessel has now spent the equivalent of one full year, or more than 10% of its time, at sea delivering crucial research in Antarctic waters.

04:33
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Phys

A 60-year old mystery about the moon's magnetosphere is finally solved‎

One particularly well-known fact about the moon is that it doesn't have much of a magnetosphere to speak of. There's no blanket to protect it from the solar wind ravaging its surface, blowing away its atmosphere and charging the notoriously dangerous dust particles that make up its regolith. However, scientists have also known for around 60 years that some parts of the moon do experience sudden spikes in a magnetic field—some of which are up to 10 times stronger than the background magnetization.

04:33
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Phys

Ticketmaster's Eras Tour chaos made worse by crisis communication failures‎

Ticketmaster was seemingly not ready for the influx of hopeful Taylor Swift fans logging onto the digital ticketing platform when sales for the Eras Tour launched Nov. 15, 2022. Within minutes of the first "verified fan" presales opening, the Ticketmaster site began crashing, and the situation worsened throughout the day. A corporate crisis was unfolding—but communication from the company was minimal and defensive. Even Taylor Swift herself was moved to apologize to fans and demand accountability.

03:02
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Phys

Maize mysteries: Scientists uncover new information on how DNA works in maize‎

Maize serves as a vital model species for advancing our understanding of plant biology, yet many mysteries remain about the intricate processes governing how DNA works and organizes itself in the genome. A team of FSU researchers together with colleagues at North Carolina State University has made a breakthrough in understanding how DNA replicates in maize, uncovering the existence of two distinct subcompartments in the nucleus that hold genetic material. This discovery not only advances the fundamental knowledge of plant genomics but may have broad implications for gene regulation and crop improvement.

03:02
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Phys

Why sugar breakdown matters beyond energy—new insights into how it makes cells move‎

It has long been known that our bodies derive energy from sugar. Researchers at RPTU University Kaiserslautern-Landau have now discovered that sugar breakdown produces an intermediate product that is also crucial for the motility of human cells. The new findings, published in Nature Cell Biology, are likely to be relevant for understanding several biological processes, including cell migration in embryonic development, the migration of metastatic cancer cells and wound healing.

03:02
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Phys

Study identifies causes of potato dry rot in Colorado‎

Potato dry rot leads to significant losses during storage and postharvest handling, making management of this disease critically important for potato farmers. Colorado State University researchers in the San Luis Valley—one of the top regions for potato production in the U.S.—have identified multiple fungal species causing dry rot in Colorado. By analyzing structural and molecular features, plant pathologists at CSU's San Luis Valley Research Center have identified four Fusarium species associated with potato dry rot in the valley—including one that hadn't previously been found in the U.S.

01:49
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Phys

High-resolution electron microscopy sheds light on the cellular responses to stress‎

An international team led by researchers from the University Medical Center Göttingen (UMG), Germany, has used advanced electron microscopy technologies to capture key cellular mechanisms of stress resistance with near-atomic precision. They were able to show that the protein mHsp60, which helps other proteins to adopt their functional form, remodels its structure under stress conditions and thereby increases its activity to ensure mitochondrial functionality.

01:49
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