Even in the absence of bark beetle outbreaks and wildfire, trees in Colorado subalpine forests are dying at increasing rates from warmer and drier summer conditions, found recent University of Colorado Boulder research.
The study, published in the May print issue of the Journal of Ecology, also found that this trend is increasing. In fact, tree mortality in subalpine Colorado forests not affected by fire or bark beetle outbreaks in the last decade has more than tripled since the 1980s.
SAN FRANCISCO, CA--July 22, 2021--To speed up a chemical reaction, a chemist might place the reactants over a Bunsen burner. Adding heat increases the degree of random movements and collisions of particles, accelerating the reaction.
In cell biology, one important "reaction" is the transformation of stem cells into all the other cells in the body, a process known as differentiation. Gladstone Institutes researchers have now discovered a molecular mechanism that acts like a Bunsen burner to "turn up the heat" and accelerate differentiation.
MEADVILLE, PA - July 22, 2021 - Shark Week is many things. First and foremost, it's a week of shark-themed documentary programming on the Discovery Channel. Now in its 33rd year, it's the longest-running cable event in history. It's the biggest audience that marine biologists and ocean conservationists get, attracting millions of viewers who might otherwise not ever think about sharks at all. It's a stage that has launched careers of shark scientists and inspired many others to pursue jobs as ocean scientists.
Toronto -- People post 500 million tweets and 4 billion pieces of content on Facebook a day. What makes them do it?
An urge to share and connect with others seems obvious. But, despite how toxic the social media sandbox can get, people more often share attitudes that are framed in terms of support instead of opposition, according to new research. That happens regardless of whether the opinion itself is positive or negative.
Researchers created a global dataset of job footprints in 50 countries and used a model to investigate how trying to meet the Paris Agreement global climate target of staying well below 2°C would affect energy sector jobs. They found that action to reach said target would increase net jobs by about 8 million by 2050, primarily due to gains in the solar and wind industries. The analysis appears July 23 in the journal One Earth.
Humid tropical forests, vital in global efforts to limit rising temperatures, are under threat as a result of changes in land use and climate. Now, researchers reporting in the journal One Earth on July 23 have developed a new way to keep tabs on the vulnerability of these forests on a global scale using satellite data. Called the tropical forest vulnerability index (TFVI), the hope is that this method will serve as an early warning for areas that are under the greatest threat to enable actions aimed at protecting these forests before it's too late.
Dalian Coherent Light Source reveals strong isotope effects in photodissociation of water isotopolog
Recently, a research group led by Prof. YUAN Kaijun and Prof. YANG Xueming from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences revealed strong isotope effects in photodissociation of the water isotopologue (HOD) using the Dalian Coherent Light Source.
Their findings were published in Science Advances on July 23.
From the thrill of hearing an ice cream truck approaching to the spikes of pleasure while sipping a fine wine, the neurological messenger known as dopamine has been popularly described as the brain's "feel good" chemical related to reward and pleasure.
Hershey, Pa. -- Financial instability, lack of infrastructure, a deteriorating sense of community and family fragmentation are key contributors to diseases of despair in Pennsylvania communities, according to Penn State College of Medicine and Highmark Health researchers. The researchers conducted four focus groups in Pennsylvania communities identified as having high rates of despair-related illnesses.
University of Virginia School of Medicine researchers have discovered a previously unknown repair process in the brain that they hope could be harnessed and enhanced to treat seizure-related brain injuries.
Common seizure-preventing drugs do not work for approximately a third of epilepsy patients, so new and better treatments for such brain injuries are much needed. UVA's discovery identifies a potential avenue, one inspired by the brain's natural immune response.