Culture
Using both mouse and human brain tissue, researchers at Yale School of Medicine have discovered that SARS-CoV-2 can directly infect the central nervous system and have begun to unravel some of the virus’s effects on brain cells. The study, published today in the Journal of Experimental Medicine (JEM), may help researchers develop treatments for the various neurological symptoms associated with COVID-19.
Almost 18,000 Americans experience traumatic spinal cord injuries every year. Many of these people are unable to use their hands and arms and can't do everyday tasks such as eating, grooming or drinking water without help.
A recent study finds that, in the wake of a mass shooting, National Rifle Association (NRA) employees, donors and volunteers had extremely mixed emotions about the organization - reporting higher levels of both positive and negative feelings about the NRA, as compared to people with no NRA affiliation.
WASHINGTON -- Researchers have developed a new laser-based process for 3D printing intricate parts made of glass. With further development, the new method could be useful for making complex optics for vision, imaging, illumination or laser-based applications.
"Most 3D printing processes build up an object layer by layer," said research team leader Laurent Gallais from The Fresnel Institute and Ecole Centrale Marseille in France. "Our new process avoids the limitations of these processes by using a laser beam to transform -- or polymerize -- a liquid precursor into solid glass."
One-third of the fertilizer applied to grow corn in the U.S. each year simply compensates for the ongoing loss of soil fertility, leading to more than a half-billion dollars in extra costs to U.S. farmers every year, finds new research from the University of Colorado Boulder published last month in Earth's Future.
Every field has its underlying principles. For economics it's the rational actor; biology has the theory of evolution; modern geology rests on the bedrock of plate tectonics.
Physics has conservation laws and symmetries. For instance, the law of conservation of energy - which holds that energy can neither be created nor destroyed -- has guided research in physics since antiquity, becoming more formalized as time went on. Likewise, parity symmetry suggests that switching an event for its mirror image shouldn't affect the outcome.
Most flowering plants depend on pollinators such as bees to transfer pollen from the male anthers of one flower to the female stigma of another flower, enabling fertilization and the production of fruits and seeds. Bee pollination, however, involves an inherent conflict of interest, because bees are only interested in pollen as a food source.
COLUMBUS, Ohio - For those trying to live a healthy lifestyle, the choice between sugar and artificial sweeteners such as saccharin can be confusing.
The daily toll of COVID-19, as measured by new cases and the growing number of deaths, overlooks a shadowy set of casualties: the rising risk of mental health problems among health care professionals working on the frontlines of the pandemic.
Abu Dhabi, United Arab Emirates, January 12, 2020: New research from NYU Abu Dhabi's Laboratory of Neural Systems and Behavior for the first time used an animal model to demonstrate how abnormal sleep architecture can be a predictor of stress vulnerability. These important findings have the potential to inform the development of sleep tests that can help identify who may be susceptible -- or resilient -- to future stress.
WASHINGTON - Computer-based artificial intelligence can function more like human intelligence when programmed to use a much faster technique for learning new objects, say two neuroscientists who designed such a model that was designed to mirror human visual learning.
The leaf vasculature of plants plays a key role in transporting solutes from where they are made - for example from the plant cells driving photosynthesis - to where they are stored or used. Sugars and amino acids are transported from the leaves to the roots and the seeds via the conductive pathways of the phloem.
A new study published in the American Journal of Preventive Medicine found a 25% increase in food insufficiency during the COVID-19 pandemic. Food insufficiency, the most extreme form of food insecurity, occurs when families do not have enough food to eat. Among the nationally representative sample of 63,674 adults in the US, Black and Latino Americans had over twice the risk of food insufficiency compared to White Americans.
Through the centuries, scientists and non-scientists alike have looked at the night sky and felt excitement, intrigue, and overwhelming mystery while pondering questions about how our universe came to be, and how humanity developed and thrived in this exact place and time. Early astronomers painstakingly studied stars' subtle movements in the night sky to try and determine how our planet moves in relation to other celestial bodies. As technology has increased, so too has our understanding of how the universe works and our relative position within it.
A shadow over the promising inhaled interferon beta COVID-19 therapy has been cleared with the discovery that although it appears to increase levels of ACE2 protein - coronavirus' key entry point into nose and lung cells - it predominantly increases levels of a short version of that protein, which the virus cannot bind to.
The virus that causes COVID-19, known as SARS-CoV-2, enters nose and lung cells through binding of its spike protein to the cell surface protein angiotensin converting enzyme 2 (ACE2).