Culture
Stars produce their energy through nuclear fusion by converting hydrogen into helium - a process known to researchers as "hydrogen burning". There are two ways of carrying out this fusion reaction: on the one hand, the so-called pp cycle (proton-proton reaction) and the Bethe Weizsäcker cycle (also known as the CNO cycle, derived from the elements carbon (C), nitrogen (N) and oxygen (O)) on the other hand.
It is largely unknown why influenza infections lead to an increased risk of bacterial pneumonia. Researchers at Karolinska Institutet in Sweden have now described important findings leading to so-called superinfections, which claim many lives around the world every year. The study is published in the journal PNAS, Proceedings of the National Academy of Sciences, and can also contribute to research on COVID-19.
Why do so many Republicans still believe that the recent US presidential election was fraudulent? Is it possible to reach coronavirus deniers with factual arguments? A study by researchers at the Max Planck Institute for Human Development and the University of Amsterdam provides insights into what it is that stops people from changing their minds. Their findings have been published in the journal Proceedings of the Royal Society of London B.
Modern microscopes used for biological imaging are expensive, are located in specialized laboratories and require highly qualified staff. To research novel, creative approaches to address urgent scientific issues -- for example in the fight against infectious diseases such as Covid-19 -- is thus primarily reserved for scientists at well-equipped research institutions in rich countries.
MANHATTAN, KANSAS -- In a paper published Wednesday, Nov. 25, in Nature, Kansas State University researchers, in collaboration with the international 10+ Genome Project led by the University of Saskatchewan, have announced the complete genome sequencing of 15 wheat varieties representing breeding programs around the world -- an invaluable resource to improve global wheat production.
RENO, Nevada - Freshwater fish reserves are extraordinarily successful at protecting multiple species of fish, a new study of a network of community-based reserves in Thailand has found.
Aaron Koning, a postdoctoral research fellow at the University of Nevada, Reno's Global Water Center, spent seven years studying a network of freshwater protected areas (fish reserves) that communities established in one branch of the Salween River Basin in northern Thailand.
Boston, Mass. - Even as tens of thousands of Americans test positive for COVID-19 each day, physicians still aren't sure why some people experience mild to no symptoms while others become critically ill. New research led by Robert E. Gerszten, MD, Chief of the Division of Cardiovascular Medicine at Beth Israel Deaconess Medical Center (BIDMC) sheds new light on the genetic risk factors that make individuals more or less susceptible to severe COVID-19.
Wheat researchers at the John Innes Centre are pioneering a new technique that promises to improve gene discovery for the globally important crop.
The lives of patients hospitalised with COVID-19 are being saved by doctors who are using an existing medical treatment at an earlier stage.
Dr Luigi Sedda of Lancaster University analysed the results from the team at Wrightington, Wigan and Leigh Teaching Hospitals NHS Trust (WWL). Their research has now been published in the prestigious medical journal BMJ Respiratory Open.
The quantum sensing abilities of nanodiamonds can be used to improve the sensitivity of paper-based diagnostic tests, potentially allowing for earlier detection of diseases such as HIV, according to a study led by UCL researchers in the i-sense McKendry group.
DES PLAINES, IL -- Advanced practice providers (APPs) have lower productivity compared with emergency department physicians, seeing fewer and less complex patients and generating less relative value units per hour, and having no apparent impact on patient satisfaction and safety metrics. That is the conclusion of a study to be published in the November 2020 issue of Academic Emergency Medicine (AEM), a journal of the Society for Academic Emergency Medicine (SAEM).
The next time you visit a lake or the seashore, take a deep breath. As you exhale, take a moment to be thankful for the little things: specifically, for the microscopic, single-celled algae in the soil and waters all around you that are extracting the carbon dioxide you just exhaled and incorporating it into sugars that will eventually be used by every other organism in the biosphere. About 30% of this activity, globally, is carried out by a specialized structure in algae called the pyrenoid.
Despite their reputation, rats are surprisingly sociable and actually regularly help each other out with tasks. Researchers at the Universities of Göttingen, Bern and St Andrews have now shown that a rat just has to smell the scent of another rat that is engaged in helpful behaviour to increase his or her own helpfulness. This is the first study to show that just the smell of a cooperating individual rat is enough to trigger an altruistic and helpful response in another. The research was published in the Proceedings of the Royal Society B.
Astrophysicists from Far Eastern Federal University (FEFU) joined the international research team for explaining the difference in the results of observation of the comet 41P/ Tuttle - Giacobini - Kresak. Researchers believe that data obtained by three independent teams are complementary and its complex analysis helps to unravel the mystery of dust chemical composition of comet 41P and other conundrums of the Universe. A related article appears in Astronomy & Astrophysics.
The Loricifera is a microscopic, sediment-dwelling marine invertebrate, with a head covered in over 200 spines and an abdomen with a protective shell - known as a lorica. Since it was first discovered in 1983, just under 40 species have been written about. Now, that number is one more thanks to a group of scientists who reported on a new genus and species of Loricifera.
Their findings were published in the Journal Marine Biodiversity.