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Phys.org / How early cell membranes may have shaped the origins of life

Modern cells are complex chemical entities with cytoskeletons, finely regulated internal and external molecules, and genetic material that determines nearly every aspect of their functioning. This complexity allows cells ...

5 hours ago in Chemistry
Medical Xpress / Body-focused teens more likely to experience anxiety and depression at 20

Teenage girls who maintain a "normal" body weight through constant dieting and exercise may look "healthy" but should be seen as a vulnerable group, according to new research from the University of Warwick. The study is published ...

2 hours ago in Psychology & Psychiatry
Medical Xpress / Childhood ADHD linked to midlife physical health problems

People who have ADHD traits at age 10 are more likely than those without such traits to have physical health problems and to report physical health-related disability at age 46, according to a study led by University College ...

3 hours ago in Health
Phys.org / Q&A: Wildfire in protected Northwest forests highlights need for strategy updates

The Northwest Forest Plan, adopted in 1994, helped quell mounting tensions between timber companies and environmentalists. It protected large swaths of old-growth forest in Washington, Oregon and California to preserve habitat ...

2 hours ago in Earth
Medical Xpress / Scientists uncover hidden cells fueling brain cancer—and a drug that could stop them

A team of Canadian scientists has uncovered a new way to slow the growth of glioblastoma, the most aggressive and currently incurable form of brain cancer—and identified an existing medication that could treat it.

3 hours ago in Oncology & Cancer
Phys.org / Velocity gradients prove key to explaining large-scale magnetic field structure

All celestial bodies—planets, suns, even entire galaxies—produce magnetic fields, affecting such cosmic processes as the solar wind, high-energy particle transport, and galaxy formation. Small-scale magnetic fields are ...

3 hours ago in Physics
Medical Xpress / Maternal genetic factors may reveal why pregnancy loss is so common

By studying genetic data from nearly 140,000 IVF embryos, scientists have with unprecedented detail revealed why fewer than half of human conceptions survive to birth. The research uncovered the strongest evidence yet for ...

3 hours ago in Genetics
Phys.org / 2.6-million-year-old Paranthropus fossil expands early hominin range

In a paper published in Nature, a team led by University of Chicago paleoanthropologist Professor Zeresenay Alemseged reports the discovery of the first Paranthropus specimen from the Afar region of Ethiopia, 1,000 km north ...

3 hours ago in Biology
Phys.org / Bird retinas function without oxygen—solving a centuries-old biological mystery

Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal kingdom—function permanently without it. This may be relevant in future treatment of stroke patients.

3 hours ago in Biology
Phys.org / Quantum-enabled proteins open a new frontier in biotechnology

A research team led by the University of Oxford's Department of Engineering Science has shown it is possible to engineer a quantum mechanical process inside proteins, opening the door to a new class of quantum-enabled biological ...

3 hours ago in Biology
Phys.org / Critical Atlantic Ocean currents kept going during last ice age, microfossils suggest

During the last ice age, the Atlantic Ocean's powerful current system remained active and continued to transport warm, salty water from the tropics to the North Atlantic despite extensive ice cover across much of the Northern ...

3 hours ago in Earth
Medical Xpress / Patients struggle to measure blood pressure at home, study finds

Despite guideline recommendations and improved access to care, individuals with hypertension are unlikely to measure their blood pressure at home as often as recommended, according to data from researchers at Mass General ...

3 hours ago in Health