Tech
Globally, forests act as a large carbon sink, absorbing a substantial portion of the anthropogenic CO2 emissions. Whether mature forests will remain carbon sinks into the future is of critical importance for aspirations to limit climate warming to no more than 1.5 °C above pre-industrial levels? Researchers at Western Sydney University's EucFACE (Eucalyptus Free Air CO2 Enrichment, see the photo) experiment have found new evidence of limitations in the capacity of mature forests to translate rising atmospheric CO2 concentrations into additional plant growth and carbon storage.
WASHINGTON, D.C., April 15, 2020--Research released today challenges the notion that teachers might be uniquely equipped to instill positive racial attitudes in children or bring about racial justice, without additional support or training from schools. Instead, the results, published in Educational Researcher (ER), find that "teachers are people too," holding almost as much pro-White racial bias as non-teachers of the same race, level of education, age, gender, and political affiliation.
In the wake of a disaster, many people want to help. Researchers from North Carolina State University and the University of Alabama have developed tools to help emergency response and relief managers coordinate volunteer efforts in order to do the most good.
"Assigning volunteers after a disaster can be difficult, because you don't know how many volunteers are coming or when they will arrive," says Maria Mayorga, corresponding author of two studies on the issue and a professor in NC State's Edward P. Fitts Department of Industrial and Systems Engineering.
Alysia Marino and Eric Zimmerman, physicists at CU Boulder, have been on the hunt for neutrinos for the last two decades.
That's no easy feat: Neutrinos are among the most elusive subatomic particles known to science. They don't have a charge and are so lightweight--each one has a mass many times smaller than the electron--that they interact only on rare occasions with the world around them.
They may also hold the key to some of physics' deepest mysteries.
Cancers whose cells are riddled with large numbers of DNA mutations often respond favorably to drugs called checkpoint blockers that unleash the immune system against the tumor. But a new study shows that malignant brain tumors known as gliomas generally don't respond to the immunotherapy drugs even when the tumor cells are "hypermutated" - having thousands of DNA mutations that, in other kinds of cancer, provoke the immune system into an attack mode.
A harsh reality has emerged as COVID-19 has spread around the globe. Several thousand doctors, nurses and others caring for COVID-19 patients are dying from the virus. To alert providers in otolaryngology, one of the hardest-hit medical specialties, about the high risk of transmission and how to avoid it, University of Miami Miller School of Medicine researchers studied data from China.
The results will be published in the journal Otolaryngology-Head and Neck Surgery and are also available on the American Academy of Otolaryngology-Head and Surgery website here.
Until recently, little was known about how transposable elements contribute to gene regulation. These are little pieces of DNA that can replicate themselves and spread out in the genome. Although they make up nearly half of the human genome, these were often ignored and commonly thought of as "useless junk," with a minimal role, if any at all, in the activity of a cell.
MADISON, Wis. -- When a fire extinguisher is opened, the compressed carbon dioxide forms ice crystals around the nozzle, providing a visual example of the physics principle that gases and plasmas cool as they expand. When our sun expels plasma in the form of solar wind, the wind also cools as it expands through space -- but not nearly as much as the laws of physics would predict.
WASHINGTON, April 14, 2020 -- The output of solar energy systems is highly dependent on cloud cover. While weather forecasting can be used to predict the amount of sunlight reaching ground-based solar collectors, cloud cover is often characterized in simple terms, such as cloudy, partly cloudy or clear. This does not provide accurate information for estimating the amount of sunlight available for solar power plants.
Network or graph is a mathematical description of the internal structure between components in a complex system, such as connections between neurons, interactions between proteins, contacts between individuals in a crowd, and interactions between users in online social platform. The links in most real networks change over time, and such networks are often called temporal networks.
NEW YORK -- The first sign of trouble for a patient with a growing brain tumor is often a seizure. Such seizures have long been considered a side effect of the tumor. But now a joint team of Columbia engineers and cancer researchers studying brain tumors has found evidence that the seizures caused by an enlarging tumor could spur its deadly progression.
When the American physicist Arthur Compton discovered that light waves behave like particles in 1922, and could knock electrons out of atoms during an impact experiment, it was a milestone for quantum mechanics. Five years later, Compton received the Nobel Prize for this discovery. Compton used very shortwave light with high energy for his experiment, which enabled him to neglect the binding energy of the electron to the atomic nucleus. Compton simply assumed for his calculations that the electron rested freely in space.
BROOKLYN, New York, Tuesday, April 14, 2020 - The synthesis of plastic precursors, such as polymers, involves specialized catalysts. However, the traditional batch-based method of finding and screening the right ones for a given result consumes liters of solvent, generates large quantities of chemical waste, and is an expensive, time-consuming process involving multiple trials.
The demands for data storage and processing have grown exponentially as the world becomes increasingly connected, emphasizing the need for new materials capable of more efficient data storage and data processing.
Researchers at Mossakowski Medical Research Center of the Polish Academy of Science have developed a simple method for preparing 3D keratin scaffold models which can be used to study the regeneration of tissue.