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Tech Xplore / Seed crystals push solvent‑free perovskite cells to 25.53% efficiency

Solar cells, devices that can convert sunlight into electricity, are now widely used in many countries, where they are helping to reduce reliance on electricity generated from fossil fuels. While most solar cells used today ...

1 minute ago
Medical Xpress / Teens who struggle to log off social media could face increased ADHD symptoms over time

Social media has become as much a part of our daily lives as eating or sleeping. What started as a way for people to connect and share pictures has grown into a billion-dollar industry that shapes medical, political, and ...

1 hour ago
Phys.org / Rare blue optical transient points to possible new class of cosmic explosion

Chinese astronomers report the detection of a peculiar optical transient event that occurred in the center of a dwarf galaxy. The newly discovered event, designated AT2019ijn, is a fast-rising, slow-decaying blue optical ...

2 hours ago
Science X / Inside 530-million-year-old embryos, scientists uncover rare time-lapse of early animal growth

Think of a small fossil as the equivalent of a homemade video of prehistoric life. Fossils formed when sea organisms began their great proliferation more than half a billion years ago rarely contained anything but tough structures. ...

3 hours ago
Medical Xpress / Wireless skin sensor could continuously track soft tissue disorders from home

Northwestern scientists have developed a novel wireless sensor device that can continuously monitor skin elasticity in patients with soft tissue disorders, including lymphedema and scleroderma, which can support early disease ...

2 hours ago
Medical Xpress / FDA-issued sodium targets yield no apparent impact

In 2021, the U.S. Food and Drug Administration (FDA) issued Phase I voluntary sodium reduction targets to encourage manufacturers to lower the amount of sodium in packaged food products by 2024. The targets appear to have ...

1 hour ago
Phys.org / Study explores rare atom-containing natural products and their biomedical potential

Modern research on secondary metabolites from microbes, plants and marine organisms has revealed a remarkable diversity of chemical structures and bioactivities with broad applications in biotechnology, agriculture and medicine. ...

2 hours ago
Medical Xpress / Autistic children drown at alarming rates: How swim lessons and water safety strategies can save their lives

During roasting hot summer days, more and more people make their way to swimming pools, lakes, rivers and other spots where they can access water to stay cool.

2 hours ago
Tech Xplore / How can rural communities benefit from South Africa's green energy transition? A solar farm in Limpopo offers clues

South Africa, which produces about 40% of Africa's carbon emissions, is moving away from coal-fired power toward renewable energy such as solar and wind.

2 hours ago
Phys.org / Why and how birdsong differs across the world—and the eight motifs that tie them together

Birdsong carries meaning across open space, helping birds attract mates, defend territory and communicate with rivals. While there has been much research into the use of birdsong across species, researchers have lacked a ...

21 hours ago
Phys.org / How fishing may be changing one fish species at the molecular level

The pearly razorfish (Xyrichtys novacula) is a small marine animal that lives in sandy coastal waters and feeds on creatures like shrimp. Known locally in Spain's Balearic Islands as raors, it is a popular dish in many homes ...

21 hours ago
Phys.org / Why evolution never produced mammal teeth that slice and crush equally well

Evolution is all about trade-offs. Traits that may be beneficial in one situation may backfire in another. Over millions of years, species can become specialized for one way of living rather than being equally good at everything. ...

23 hours ago