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כתבות אחרונות מאתר 'Phys'
Phys

Coastal land shifts reveal faster local sea level rise than expected‎

For almost a century, researchers have known that vertical land motion—the lifting and sinking of the ground—affects sea level locally. As the ground sinks, the sea level rises relative to the land. Scientists also assumed this process generally occurred at a steady rate over time. But a research team that includes Thomas Wahl, a UCF researcher and associate professor in the Department of Civil, Environmental and Construction Engineering, has found that ground subsidence has undergone phases of variable change, creating significant implications for coastal communities.

00:54
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Phys

New combined spore trapping and DNA sequencing technology tracks fungicide resistance in grain crops‎

Researchers at the Center for Crop and Disease Management (CCDM) have developed a new system that combines spore trapping with advanced DNA sequencing to confirm fungicide resistance from air samples containing airborne spores.

00:44
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Phys

'Cold insurance' for crops: Researchers unlock 'on-demand' climate resilience‎

Rapidly intensifying global climate instability is causing increasingly erratic temperature fluctuations. When sudden cold snaps strike during a crop's critical flowering window, they trigger irreversible pollen abortion, slashing yields of staple crops by 20% to 60%. Passive defenses offer minimal protection at a high cost, while breeding for continuous cold resistance often backfires by wasting vital energy under normal temperatures. Shifting the breeding paradigm toward "on-demand" climate resilience—maintaining high yields in favorable seasons while securing stable performance under stress—is critical.

00:44
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Phys

Cells have a secret power line: How the nucleus gets its own private energy supply from mitochondria‎

For decades, biologists assumed a cell's energy simply diffused to wherever it was needed. It turns out the most important destination of all has a private delivery line.

00:33
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Phys

Biopolymer beads extend fungus bioinsecticide shelf life and release‎

Researchers have used a biopolymer to encapsulate and extend the storage life and release rate of a bioinsecticidal fungus. The study is published in ACS Omega. The goal is to extend the shelf life of Beauveria bassiana, a fungus widely used as a bioinsecticide on various agricultural crops. Encapsulation is also a more sustainable alternative because it requires fewer applications and has less potential to affect nontarget species.

00:33
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Phys

Borneo's ferret badger is found nowhere else on Earth‎

A collaborative study has provided the most comprehensive assessment to date of the endangered Bornean ferret badger (Melogale everetti). Weighing only around one kilogram (2.2 pounds), the Bornean ferret badger is a small, nocturnal carnivore that is rarely seen by people. The paper is published in the journal Ecology and Evolution.

00:22
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Phys

Drone surveys reveal why steep alpine channels erode so fast during debris flows‎

A brown mass—a mixture of water, boulders and fine matter—plows through the landscape. The mountains wash more than a thousand lorryloads of material into the valley on a fairly regular basis, causing damage in excess of CHF 100 million per year in Switzerland alone. A better understanding of this natural hazard requires data from the debris flow channels, of which there is very little because of the complex surveying process.

00:22
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Phys

X-rays reveal how platinum oxidizes in real time inside hydrogen devices‎

Electrolysers produce hydrogen. Fuel cells, in turn, generate electricity from hydrogen. Both technologies are considered key building blocks of the energy transition, offering well-established solutions for storing, transporting and producing renewable energy. However, there is a challenge: The platinum catalysts often used in these systems gradually lose performance under high operating loads. In a sense, they "wear out" too quickly, increasing the costs of hydrogen technologies.

00:12
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Phys

Missing the forest for the trees: Conservationists emphasize the need for intact forest in coffee landscapes‎

As conservationists seek to maintain biodiversity levels in tropical coffee landscapes, data indicate the presence and quality of surrounding forest habitat may play a larger role than previously thought. New research from the Colombian Andes shows that conserving forest cover across coffee-growing landscapes is essential for sustaining diverse bird communities, even more than farm-level shade tree management alone.

00:12
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Phys

Farm fields become living labs as data tools reshape crop research‎

For generations, agronomic knowledge has been produced on research stations like AU Flakkebjerg, where fields are designed to answer specific scientific questions. This is where agriculture became measurable, comparable and reproducible. But a quiet shift is underway. Today, experiments are escaping the confines of the research station, turning ordinary farm fields into laboratories and farmers into active contributors to agricultural research.

00:03
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