Earth
A study carried out with a new human stem cell-derived model reveals that the most prevalent genetic risk factor of Alzheimer's disease (AD), apolipoprotein E4 (APOE4), impairs the function of human brain immune cells, microglia. These findings pave the way for new, effective treatment approaches for AD. The results were published in Stem Cell Reports.
For years, astronomers have looked up at the sky and speculated about the strange dimming behavior of Tabby's Star.
First identified more than a century ago, the star dips in brightness over days or weeks before recovering to its previous luminosity. At the same time, the star appears to be slowly losing its luster overall, leaving researchers scratching their heads.
Now, astronomers at Columbia University believe they've developed an explanation for this oddity.
We're all a little short on sleep during the work week. A new study adds to the mounting evidence about just how harmful lack of sleep can be. In the Journal of Lipid Research, researchers at Pennsylvania State University report that just a few days of sleep deprivation can make participants feel less full after eating and metabolize the fat in food differently.
Communities across the United States are working with scientists to respond to climate change impacts, shows a new report and multimedia resources developed by the American Association for the Advancement of Science (AAAS). How We Respond shares details and perspectives from 18 communities using scientific information to adapt to climate change impacts and/or reduce greenhouse gas emissions.
The way immune cells pick friends from foes can be described by a classic maths puzzle known as the "narrow escape problem".
That's a key finding arising from an international collaboration between biologists, immunologists and mathematicians, published in the journal Proceedings of the National Academy of Sciences.
The narrow escape problem is a framework often applied in cellular biology. It posits randomly moving particles trapped in a space with only a tiny exit, and calculates the average time required for each one to escape.
A team of scientists from Ural Federal University (Yekaterinburg), Bangladesh University of Engineering and Technology and other collaborator have published an article about a new method for the synthesis of magnetic nanoparticles. Today nanoparticles are used in various fields, from biomedicine to magnetic resonance imaging, data storage systems, environmental reclamation technologies, magnetically controlled liquids, various sensors, and immunoassay systems.
When it comes to the impact of climate change on ecosystems, we still have large knowledge gaps. Most experiments are unrealistic because they do not correspond to projected climate scenarios for a specific region. As a result, we lack reliable data on what ecosystems might look like in the future, as a team of biodiversity researchers from Central Germany show in the journal "Global Change Biology". The team reviewed all experimental studies on the topic. The researchers are now calling for the introduction of common protocols for future experiments.
BINGHAMTON, N.Y. -- A team of researchers, including faculty at Binghamton University, have developed machine learning algorithms which can successfully identify bullies and aggressors on Twitter with 90 percent accuracy.
Palorchestid marsupials, an extinct group of Australian megafauna, had strange bodies and lifestyles unlike any living species, according to a study released September 13, 2019 in the open-access journal PLOS ONE by Hazel Richards of Monash University, Australia and colleagues.
Technology is getting smaller - which is good news.
The ability to fabricate materials with optical, electrical and mechanical properties out of very small particles could have far-reaching applications. For example, micro-particles grafted with DNA can be used in medicine for better sensing, imaging and treatment delivery. An improved understanding of how these materials behave could lead to fulfilling the promise of precision medicine, among other applications.
WESTMINSTER, Colorado - September 13, 2019 - A research study featured in the journal Weed Science provides worrisome new details about the evolution of herbicide resistance in waterhemp - an annual weed that represents a significant threat to Midwest corn and soybean crops.
Researchers from the University of Copenhagen have studied what it means for children to have parents who are refugees and have PTSD. The study shows that these children have a significantly higher risk of contact with the psychiatric system. The researchers believe that there should be focus on the problem and that early measures and treatment options should be developed.
EAST LANSING, Mich. - Healthy cells in our body release nano-sized bubbles that transfer genetic material such as DNA and RNA to other cells. It's your DNA that stores the important information necessary for RNA to produce proteins and make sure they act accordingly.
These bubbly extracellular vesicles could become mini treatment transporters, carrying a combination of therapeutic drugs and genes that target cancer cells and kill them, according to new research from Michigan State University and Stanford University.
Land restoration in Latin America and the Caribbean is picking up pace and scaling up projects will help the region meet its pledges under the Bonn Challenge, which aims to restore 350 million hectares of degraded and deforested land worldwide by 2030. A new study led by the International Center for Tropical Agriculture (CIAT) and Wageningen University supplies a first map of restoration projects in Latin America and shows their potential to mitigate climate change through restoring forests.
CATONSVILLE, MD, September 13, 2019 -There are more than 60 million business pages on Facebook and that number is from 2017. With those pages come scores of positive and negative posts generated by Facebook users. What researchers have seen is companies have very little control over what customers post, and negative posts can severely damage brands.