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Phys.org / Ethics should lead, not play catch-up, expert emphasizes as Japan panel OKs making human embryos from stem cells

A leading bioethicist at Hiroshima University is calling for an anticipatory, rather than reactive, approach to ethics after a Japanese government panel in August backed a report that brings the country a step closer to becoming ...

Nov 14, 2025 in Biology
Phys.org / Wild birds are driving the current US bird flu outbreak

Since late 2021, a panzootic, or "a pandemic in animals," of highly pathogenic bird flu variant H5N1 has devastated wild birds, agriculture, and mammals. Unlike previous outbreaks, aggressive culling of domestic birds has ...

Nov 13, 2025 in Biology
Medical Xpress / Vagus nerve's right branch plays a key role in digestive signaling

After years of work, cognition and neuroscience doctoral student Hailey Welch is—for the first time—the lead author of a study published in an academic journal, a paper appearing in Cell Reports, which examined the role ...

Nov 13, 2025 in Neuroscience
Tech Xplore / Cracking the code of complexity in computer science's P vs. NP problem

New research from the University of Waterloo is making inroads on one of the biggest problems in theoretical computer science. But the way to do it, according to Cameron Seth, a Ph.D. researcher working in the field of algorithmic ...

Nov 14, 2025 in Computer Sciences
Phys.org / Magnetic nanoparticles that successfully navigate complex blood vessels may be ready for clinical trials

Every year, 12 million people worldwide suffer a stroke; many die or are permanently impaired. Currently, drugs are administered to dissolve the thrombus that blocks the blood vessel. These drugs spread throughout the entire ...

Nov 13, 2025 in Nanotechnology
Phys.org / Putting less meat and more legumes in school menus reduces environmental impact by up to 50%

The transition to healthy diets with a low environmental impact is crucial to achieving sustainable food systems and reducing health problems. In this context, dietary guidelines for schools can encourage eating behaviors ...

Nov 13, 2025 in Earth
Medical Xpress / Immune reactions found behind human rejection of transplanted pig kidneys

Researchers have uncovered and then overcome an obstacle that has led to the failure of pioneering efforts in xenotransplantation, in which an animal kidney is transplanted into a human.

Nov 13, 2025 in Immunology
Phys.org / Algorithms reveal how propane becomes propylene for everyday products

Countless everyday products, from plastic squeeze bottles to outdoor furniture, are derived by first turning propane into propylene.

Nov 13, 2025 in Chemistry
Phys.org / Bird flu wipes out nearly half of breeding female elephant seals on South Georgia

The world's largest species of seal has been devastated by bird flu, which has wiped out half of all breeding females at a key wildlife haven near Antarctica, scientists warned Thursday.

Nov 13, 2025 in Biology
Medical Xpress / Direct link between peak air pollution and cardiac risk revealed

In Lombardy, the risk of suffering cardiac arrest may increase on days recording high levels of air pollution. This emerges from a study conducted by the Politecnico di Milano and published in the journal Global Challenges.

Nov 14, 2025 in Cardiology
Phys.org / Race for first private space station heats up as NASA set to retire ISS

With NASA's International Space Station set to come out of service in 2030, American aerospace firm Vast has stepped into a frenzied race for the world's first commercial space station.

Nov 13, 2025 in Astronomy & Space
Medical Xpress / Very low LDL-cholesterol correlates to fewer heart problems after stroke

Brigham and Women's Hospital's TIMI Study Group reports that in patients with prior ischemic stroke, very low achieved LDL-cholesterol correlated with fewer major adverse cardiovascular events and fewer recurrent strokes, ...