Culture
Whether in beta-blockers to treat high blood pressure or in natural products: So-called vicinal aminoalcohols are high-quality organic compounds that are found in many everyday products. However, their production is difficult. For a long time, chemists are trying to develop efficient methods of synthesizing them. In their recent study published in the journal Nature Catalysis, scientists led by Prof. Dr. Frank Glorius of Münster University have found a solution for the production of a special variant of aminoalcohols.
What The Viewpoint Says: The rapid spread of scientific misinformation on social media platforms throughout the COVID-19 pandemic is discussed in this Viewpoint, which also proposes strategies to counteract its adverse effects including surveillance of digital data and partnering with trusted messengers to engage the public and advance scientifically sound public health measures.
Authors: Raina M. Merchant, M.D., M.S.H.P., of the University of Pennsylvania in Philadelphia, is the corresponding author.
ITHACA, N.Y. - From an observatory high above Chile's Atacama Desert, astronomers have taken a new look at the oldest light in the universe.
Their observations, plus a bit of cosmic geometry, suggest that the universe is 13.77 billion years old - give or take 40 million years. A Cornell University researcher co-authored one of two papers about the findings, which add a fresh twist to an ongoing debate in the astrophysics community.
All prediabetes is not the same: in people in the preliminary stages of type 2 diabetes, there are six clearly distinguishable subtypes, which differ in the development of the disease, diabetes risk, and the development of secondary diseases. This is shown in a study by the Institute for Diabetes Research and Metabolic Diseases (IDM) of Helmholtz Zentrum München at the University of Tübingen, Tübingen University Hospital and the German Center for Diabetes Research (DZD). The results have now been published in Nature Medicine.
The coronavirus pandemic is creating a large spike in significant psychological distress among Americans, with the first month of the pandemic causing as much distress in the same number of individuals that experienced it during the whole previous year, according to a new RAND Corporation study.
Fluorescence microscopy is widely used in biochemistry and life sciences because it allows scientists to directly observe cells and certain compounds in and around them. Fluorescent molecules absorb light within a specific wavelength range and then re-emit it at the longer wavelength range. However, the major limitation of conventional fluorescence microscopy techniques is that the results are very difficult to evaluate quantitatively; fluorescence intensity is significantly affected by both experimental conditions and the concentration of the fluorescent substance.
Activating an immune signaling pathway best known for fighting viral and bacterial infections can boost the ability of genetically engineered T cells to eradicate breast cancer in mice, according to a new study by researchers at the University of North Carolina.
When the COVID-19 pandemic reached Africa, the continent was already struggling to deal with another public health crisis - a growing cancer epidemic characterized by more than one million new cancer cases and nearly 700,000 deaths per year. In a Perspective, Beatrice Wiafe Addai and Wilfred Ngwa discuss the significant challenges COVID-19 imposed on cancer prevention and control in Africa and how the efforts to address these challenges highlight key opportunities where greater investment could improve cancer care globally.
Countries led by women have not fared significantly better in the COVID-19 pandemic than those led by men- it may be just our Western media bias that makes us think they have!
DALLAS - Dec. 30, 2020 - When fat cells in the body are stuffed with excess fat, the surrounding tissue becomes inflamed. That chronic, low-level inflammation is one of the driving factors behind many of the diseases associated with obesity. Now, UT Southwestern scientists have discovered a type of cell responsible, at least in mice, for triggering this inflammation in fat tissue. Their findings, published in Nature Metabolism, could eventually lead to new ways to treat obesity.
Very low birthweight infants are at a high risk for anemia and often need blood transfusions to survive. Some doctors use a higher level and some use a lower level of red blood cells to order a transfusion. A National Institutes of Health-funded study suggests that providing a higher threshold of red cells within clinically accepted limits (i.e., using a higher level of red blood cells when ordering a transfusion) offers no advantage in survival or reduction in neurological impairment over a lower threshold.
The scientists from St Petersburg University began to study the geology of Central Asia in the middle of the 20th century. Multi-year research and rich field experience have made it possible to create the world's leading school of thought in the geology of the Tien Shan at the University. At present, work continues with active collaboration with scientists throughout the world.
Mobile apps have revolutionised the way people meet in Switzerland and elsewhere in recent years. Unlike traditional dating sites, these apps do not feature detailed user profiles but are largely based on rating photos using a swipe review system. As dating apps escalated in popularity, so has criticism about them encouraging casual dating only, threatening the existence of long-term commitment, and possibly damaging the quality of intimacy. There is no scientific evidence, however, to validate these claims.
Very low birthweight infants often need blood transfusions to survive. A National Institutes of Health-funded study suggests that providing a higher threshold of red cells within accepted limits offers no advantage in survival or reduction in neurological impairment over a lower threshold.
Women awaiting liver transplants in the United States are known to be about one-third more likely than men to become too ill to undergo surgery or die before receiving a liver. Now a study headed by UC San Francisco and Columbia University highlights the role that frailty plays in this gender gap.