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כתבות אחרונות מאתר 'Phys'
Phys

HydroGraphNet boosts watershed predictions of daily flow and nitrogen in sparse data regions‎

Spatially distributed prediction of streamflow and nitrogen (N) export dynamics is essential for precision management of agricultural watersheds. While temporal deep learning models have shown strong basin-scale performance, their ability to generalize spatially is limited, particularly under data-scarce conditions. To address this gap, a team of researchers led by the Center for Advanced Bioenergy and Bioproducts Innovation (CABBI) propose HydroGraphNet, a knowledge-guided graph machine learning framework integrating process-based knowledge and explicit spatial learning into temporal modeling.

04:50
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Phys

How to feed your garden birds without spreading disease‎

The outbreak of a mysterious and deadly disease in finches in British gardens in 2005 set alarm bells ringing for conservationists. A decade later, the extent of that disease in greenfinches and chaffinches was reported. And now, bird scientists are beginning to understand how feeding birds in our gardens might be linked to their health and survival.

02:49
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Phys

Salty drinking water could be increasing your blood pressure. People living in coastal areas are most at risk‎

When people consider what causes high blood pressure, they often think of lifestyle factors, such as eating salty foods, lack of exercise or smoking. However, an unexpected source of salt might also be raising blood pressure for millions of people: the water they drink.

00:32
תפריט כתבה
Phys

Prenatal opioid exposure in babies doesn't predict future classroom performance, study finds‎

Every 25 minutes in the United States, a baby is diagnosed with neonatal abstinence syndrome (NAS), a condition that occurs in newborns who have been exposed to opioids in the womb and develop withdrawal after birth, according to the Centers for Disease Control and Prevention. Historically, research has focused on the impact of NAS—also known as neonatal opioid withdrawal syndrome—on the health and development of young children, which has found that prenatal opioid exposure is associated with increased risk for adverse developmental, cognitive and behavioral outcomes in early childhood.

00:08
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Phys

DESI completes planned 3D map of the universe and continues exploring‎

The Dark Energy Spectroscopic Instrument (DESI) has successfully completed the largest high-resolution 3D map of the universe ever made, a major milestone in understanding the force driving cosmic expansion. The milestone was reached when DESI's 5,000 fiber-optic sensors captured their final scheduled observations, targeting a region of sky near the Little Dipper.

23:00
תפריט כתבה
Phys

Disputes over Africa's ocean resources: Here's what could help avoid them‎

Over the last several decades, the oceans have become more crowded. Aquaculture, wind and wave energy, and oil and gas exploration are taking up more space. This growth threatens the health of ocean ecosystems and coastal communities' access to food and livelihoods that they have relied on for centuries.

22:40
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Phys

Raven personalities shape survival as human pressure grows at the Dead Sea‎

Along the stark and shimmering coastline of the Dead Sea, where desert cliffs meet one of the world's most extreme environments, a quiet drama is unfolding in the skies above. Fan-tailed ravens, intelligent, adaptable, and ever-watchful, are making life-or-death decisions every day. And according to new research, those decisions may come down to personality.

22:02
תפריט כתבה
Phys

Physics-based AI model opens new frontiers in dielectric materials exploration‎

Predicting material properties remains a major challenge in materials science, as it often requires complex and computationally intensive calculations. In particular, understanding how materials respond to electric fields is essential for the development of next-generation electronic devices.

21:45
תפריט כתבה
Phys

Mental math's shortcut—pupil dilation suggests people start solving before all numbers are in‎

People often solve simple arithmetic problems, such as basic addition, subtraction, multiplication or division, in their minds. The precise mental processes they rely on to solve these problems, however, are not entirely clear. Researchers at Université de Bordeaux and UCLouvain recently tried to better understand how humans tackle simple math mentally by tracking the size of their pupils.

20:57
תפריט כתבה
Phys

More rhythm, less blues: Program boosts class behavior‎

From flash mobs to line-dancing to the Nutbush, experiencing rhythm and movement in a group context is known to boost mental and physical health in people of all ages. Now a University of the Sunshine Coast study published in Behavioral Sciences of more than 200 4-year-olds across South East Queensland has found and measured significant, specific benefits of the practice in preschool settings.

20:57
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