All News

Phys.org / Global warming amplifies extreme day-to-day temperature swings, study shows

A new study has revealed that rapid, large-scale day-to-day temperature fluctuations have intensified amid global warming, representing a distinct climate hazard with impacts on human health. This growing volatility creates ...

20 hours ago in Earth
Phys.org / A new 'hypertropical' climate is emerging in the Amazon, exposing trees to deadly stress

The Amazon rainforest is slowly transitioning to a new, hotter climate with more frequent and intense droughts—conditions that haven't been seen on Earth for tens of millions of years.

20 hours ago in Earth
Phys.org / Quantum machine learning nears practicality as partial error correction reduces hardware demands

Imagine a future where quantum computers supercharge machine learning—training models in seconds, extracting insights from massive datasets and powering next-gen AI. That future might be closer than you think, thanks to ...

21 hours ago in Physics
Medical Xpress / Your brain on imagination: Study reveals how the mind's eye helps us learn and change

A new study led by cognitive neuroscientists at the University of Colorado Boulder and the Max Planck Institute for Human Cognitive and Brain Sciences shows that merely imagining a positive encounter with someone can make ...

19 hours ago in Psychology & Psychiatry
Phys.org / NOAA's denial of endangered status for salmon sparks talk of legal challenge

On Dec. 8, Federal fisheries officials rejected a bid to designate West Coast Chinook salmon as threatened or endangered under the Endangered Species Act.

11 hours ago in Biology
Phys.org / Direct observation reveals 'two-in-one' roles of plasma turbulence

Producing fusion energy requires heating plasma to more than one hundred million degrees and confining it stably with strong magnetic fields. However, plasma naturally develops fluctuations known as turbulence, and they carry ...

19 hours ago in Physics
Medical Xpress / How the immune system stalls weight loss

Researchers at the University of California San Diego School of Medicine have uncovered a surprising new function for immune cells: preventing excess weight loss.

20 hours ago in Immunology
Medical Xpress / Immune system's 'on-off' switch may hold answers for cancer and autoimmunity

A single signaling pathway controls whether immune cells attack or befriend cells they encounter while patrolling our bodies, researchers at Stanford Medicine have found. Manipulating this pathway could allow researchers ...

Phys.org / Painting galaxy clusters by numbers (and physics)

Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand individual galaxies and huge reservoirs of superheated, X-ray-emitting gas. The mass of this hot gas ...

20 hours ago in Astronomy & Space
Phys.org / Estimating stellar-mass compact object accretion in AGN disks with a new method

A research team from the Yunnan Observatories of the Chinese Academy of Sciences (CAS), in collaboration with other researchers, has developed a new method to estimate how stellar-mass compact objects (COs)—including black ...

20 hours ago in Astronomy & Space
Phys.org / School feeding programs lead to modest but meaningful results, according to review

Free or subsidized school meals lead to modest gains in math and school enrollment, according to a new Cochrane review that examined the global impact of school feeding programs on disadvantaged children in both high-income ...

11 hours ago in Other Sciences
Phys.org / Eco-friendly, photo-switchable smart adhesives use biomass-derived materials

Conventional petroleum-based adhesives rely heavily on the petrochemical industry and pose environmental risks due to harmful emissions and limited reusability. In a new study, researchers developed a novel photo-switchable ...

11 hours ago in Chemistry