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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.

7 hours ago in Earth
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 ...

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.

7 hours ago in Immunology
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 ...

7 hours ago in Astronomy & Space
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 ...

8 hours ago in Earth
Phys.org / Modified bacterial transport system imports artificial amino acids for efficient designer protein creation

Researchers from ETH Zurich have succeeded in introducing large quantities of unnatural amino acids into bacteria, enabling the creation of innovative and highly efficient designer proteins. These can be used as more efficient ...

7 hours ago in Biology
Medical Xpress / Genetic modifier of Friedreich's ataxia points toward treatment for devastating disorder

Friedreich's ataxia (FA) is a rare but devastating genetic disorder. Those with the condition are often diagnosed between 5 and 15 years of age and live only into their 30s or 40s. There is no widely approved treatment that ...

7 hours ago in Genetics
Medical Xpress / The hidden health risks of bottled water

Growing mistrust of tap water has helped turn bottled water into a global staple, even in countries where public supplies are among the most rigorously tested. Marketing has positioned bottled water as purer, healthier and ...

1 hour ago in Health
Tech Xplore / The science of human touch, and why it's so hard to replicate in robots

Robots now see the world with an ease that once belonged only to science fiction. They can recognize objects, navigate cluttered spaces and sort thousands of parcels an hour. But ask a robot to touch something gently, safely ...

4 hours ago in Robotics
Medical Xpress / Social inequities in atrial fibrillation survival remain unchanged over 20 years, finds study

Atrial fibrillation, also known as AF or Afib, is one of the most common cardiovascular diseases. In fact, one in three individuals can expect to be diagnosed with the condition, which increases the risk of serious complications ...

4 hours ago in Health
Medical Xpress / Key chemical in dark chocolate may slow down aging

A chemical found in dark chocolate could slow the rate of biological aging. Research from King's College London has found that the chemical theobromine, a common plant compound that comes from cocoa, could have anti-aging ...

9 hours ago in Health
Medical Xpress / Exposure to neighborhood violence leads some Denver teens to use tobacco and alcohol earlier, new study shows

High levels of neighborhood violence increase the risk of Latino and African American teens in Denver starting to use alcohol and tobacco, according to our recent study.

4 hours ago in Health