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Phys.org / Microfluidic device simulates human tissue and offers an alternative to animal testing
Researchers at the Brazilian Center for Research in Energy and Materials (CNPEM) have developed microfluidic technology that can grow cells in three dimensions (3D). The goal is to conduct toxicity tests on new products by ...
Phys.org / Decoding the DNA switches behind gene regulation
Understanding gene regulation may be key to interpreting human disease genetics. Genes are regulated in part by stretches of DNA called enhancers, which define when, where and how strongly each gene is turned on. Mapping ...
Phys.org / A famous galaxy's black hole has been hiding its most violent behavior
Astronomers have found that a nearby galaxy's black hole is blasting out a far more powerful and hidden gas outflow than previously realized. Studying NGC 1068, a well-known galaxy with an actively feeding black hole at its ...
Phys.org / Why global wind energy may stay steady even as storm tracks shift poleward
Understanding how wind changes in response to global warming is necessary for accurately modeling climate and weather, identifying risks to infrastructure, and assessing global wind power capacity.
Phys.org / Moles' wide-armed posture reshapes how their shoulder bones carry loads
While the scapula is the primary bone supporting the body in terrestrial quadrupedal mammals, an analysis of internal bone structure in underground moles (family Talpidae) showed a more important role for the clavicle.
Phys.org / The surprising history of woolly rhinos: They weren't always creatures of the frozen north
Woolly rhinoceroses (Coelodonta antiquitatis) were fascinating creatures: giant, lumbering Ice Age beasts with thick fur and massive horns that died out about 11,000 years ago. Previous genetic studies had left open the question ...
Phys.org / Endurance running or endurance diving—which came first?
A new study combines paleoanthropology and diving physiology to address a fundamental question in human evolution: Why did humans evolve their exceptional aerobic endurance? Did our ancestors begin endurance running to exhaust ...
Medical Xpress / Common eye disease can cause hallucinations, but few people know it
Seeing people, flowers or patterns that aren't really there can be frightening. But for people with serious vision loss, these visions are often a known and harmless side effect, experts say.
Phys.org / Bizarre galactic radio source remains active for two decades with no detectable X-rays
Astronomers have identified a peculiar radio transient in the Milky Way that has remained active for more than two decades, defying the behavior expected of known classes of galactic radio sources. The paper posted to the ...
Phys.org / Bone strength study reveals new clues about human evolution
Bipedalism, or walking on two legs, is one of the key features that distinguishes humans from other apes. But when and why our ancestors transitioned from a life often spent in trees to a life spent almost exclusively on ...
Tech Xplore / 'We're losing control': AI pioneer urges nuclear-style safeguards for autonomous agents
The Canadian computer scientist Yoshua Bengio, considered one of the founders of AI, told AFP that humanity is "losing control" of the technology and that the world needs guardrails similar to nuclear arms controls.
Tech Xplore / Harvesting hot electrons could break solar panel barrier
Physics predicts that no more than 33% of the solar energy that falls on a solar panel can be converted into electricity. However, experiments and simulations by scientists at the University of Groningen in the Netherlands ...
