ניווט נגישות
כתבות אחרונות מאתר 'Phys'
Phys

Free-text answers and LLMs reveal hidden reasons behind human choices‎

Why do people make the choices they do? Researchers from the Center Synergy of Systems (SynoSys) at TUD Dresden University of Technology, the Max Planck Institute for Human Development, and the University of Basel present their new approach to finding answers to that question. The approach combines observed choices with participants' own descriptions of their decision processes, allowing researchers to study human behavior in greater detail than is possible with behavioral data alone.

22:01
תפריט כתבה
Phys

Giant wheat starch granules—a leap forward in biological engineering with potential benefits for diet, manufacturing‎

Scientists have grown wheat containing supersized starch granules—a leap forward in biological engineering with potential benefits for our daily diets and a raft of industrial applications.

21:05
תפריט כתבה
Phys

Newfound family ties link Scythian elite burials across the Eurasian steppe‎

A new ancient DNA study published in Science Advances provides evidence that political power among Scythian elites may have been inherited through family lineages that extended across multiple burial sites. By combining archaeology, anthropology and genetics, the new study offers fresh insight into how social inequality and political authority developed among ancient nomadic societies.

21:05
תפריט כתבה
Phys

Mammals use the same underlying system—preserved through evolution—to process smells‎

Picture a mouse taking rapid, staccato sniffs of a crumb it's found while foraging for food. Now compare that with a human leaning in for a single, deep inhale to gauge whether a cantaloupe is ripe. New research from Northwestern University has found that, like humans, mice also can take a single sniff to deliberately probe their environment—something scientists previously did not know.

21:05
תפריט כתבה
Phys

A benchmark for how different disturbances influence the loss and recovery of carbon and CO₂ in tropical forests‎

Tropical moist forests account for 70% of global living biomass. Deforestation and degradation—that is, the partial damage to tree stands—as well as the subsequent regeneration of forests therefore play a pivotal role in the global carbon cycle. While the effects of large-scale tropical deforestation are well understood, the impacts of forest degradation have remained highly uncertain until now.

21:05
תפריט כתבה
Phys

Antarctic ozone loss drove unexpected Southern Ocean cooling, climate model shows‎

The Southern Ocean has long stood out as an oddity in the global climate system. While most of the planet's surface oceans have warmed in response to rising greenhouse gases, waters circling Antarctica showed an unexpected tendency to cool during the late 20th and early 21st centuries. This cooling coincided with a period when Antarctic sea ice briefly expanded before its more recent decline, adding to the mystery.

20:22
תפריט כתבה
Phys

Colony connections determine ant wound care: Transitional workers treat injured nestmates‎

Patients in hospitals generally trust the nursing staff. After all, they have undergone training and, in some cases, have several years of professional experience. In the case of carpenter ants, it is not nursing expertise that determines who cares for the patients.

20:09
תפריט כתבה
Phys

If we force online platforms to control harmful content, where does that leave sex ed?‎

Most of us have attended sex ed classes in school. If we're lucky, we'll learn about consent and how to roll a condom onto a banana. But the classroom rarely goes into the specifics of sexual health and well-being—including what to do when a condom breaks.

19:22
תפריט כתבה
Phys

Ultrafast scanning tunneling microscopy reaches the quantum mechanical space-time limit for the first time‎

Werner Heisenberg's famous uncertainty principle describes one of the most intriguing features of quantum physics: certain pairs of physical quantities describing a particle, such as position and momentum, cannot simultaneously be determined with arbitrary precision—not because of imprecise measuring instruments, but because nature forbids it. Between position and time, however, there is no Heisenberg uncertainty principle.

19:01
תפריט כתבה
Phys

Study reveals systemic barriers slowing down circular plastics transition‎

A new study from the University of Eastern Finland shows that the transition toward a circular plastics economy is hindered by systemic interdependencies and internal contradictions within ecosystems.

19:01
תפריט כתבה
דיווח על כתבה זו הסתרת כתבות מאתר זה המשך קריאה באתר המקור