Culture
The degree of acidity or alkalinity of a substance is crucial for its chemical behavior. The decisive factor is the so-called proton affinity, which indicates how easily an entity accepts or releases a single proton. While it is easy to measure this for molecules, it has not been possible for surfaces. This is important because atoms on surfaces have very different proton affinities, depending on where they sit.
Breast cancer diagnosis: Around 88 percent of patients survive the dangerous disease in the first five years. Work is important for getting back to normality. Researchers from the University of Bonn and the German Cancer Society investigated how satisfied former patients are with their occupational development over a period of five to six years since diagnosis. About half experienced at least one job change during the study period. Around ten percent of those affected even report involuntary changes. The researchers conclude that there is a need for long-term support measures for patients.
Even though more and more vaccines against the coronavirus are being administered all over the world, many countries are still battling with outbreaks and face difficulties providing help to those in need.
One of those countries is Brazil. Here, they are facing a massive second wave outbreak, many daily deaths and instances of the health care systems collapsing. In the city of Manaus things have looked exceptionally bleak from December and through to the early spring.
COLUMBUS, Ohio - Tiny molecules called nanobodies, which can be designed to mimic antibody structures and functions, may be the key to blocking a tick-borne bacterial infection that remains out of reach of almost all antibiotics, new research suggests.
The infection is called human monocytic ehrlichiosis, and is one of the most prevalent and potentially life-threatening tick-borne diseases in the United States. The disease initially causes flu-like symptoms common to many illnesses, and in rare cases can be fatal if left untreated.
RESEARCH TRIANGLE PARK, N.C. -- New Army-funded synthetic biology research manipulated micro-compartments in cells, potentially enabling bio-manufacturing advances for medicine, protective equipment and engineering applications.
Bad bacteria can survive in extremely hostile environments -- including inside the highly acidic human stomach--thanks to their ability to sequester toxins into tiny compartments.
Every day, the sun ejects large amounts of a hot particle soup known as plasma toward Earth where it can disrupt telecommunications satellites and damage electrical grids. Now, scientists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) and Princeton University's Department of Astrophysical Sciences have made a discovery that could lead to better predictions of this space weather and help safeguard sensitive infrastructure.
Although plants may look fairly inactive to casual observers, research into plant biology has shown that plants can send each other signals concerning threats in their local environments. These signals take the form of airborne chemicals, called volatile organic compounds (VOCs), released from one plant and detected by another, and plant biologists have found that a diverse class of chemicals called terpenoids play a major role as airborne danger signals.
It's well established that infectious disease is the greatest threat to the endangered chimpanzees made famous by the field studies of Jane Goodall at Gombe National Park in Tanzania. Now, new research led by scientists at Emory University shows that nearly half of the fecal samples from wild chimpanzees contain bacteria that is resistant to a major class of antibiotics commonly used by people in the vicinity of the park.
The journal Pathogens published the findings.
LAWRENCE -- College students across the country struggle with a vicious cycle: Test anxiety triggers poor sleep, which in turn reduces performance on the tests that caused the anxiety in the first place.
Seasonally occurring fields of aufeis (icing) constitute an important resource for the water supply of the local population in the Upper Indus Basin. However, little research has been done on them so far. Geographers at the South Asia Institute of Heidelberg University have now examined the spreading of aufeis and, for the first time, created a full inventory of these aufeis fields. The more than 3,700 accumulations of laminated ice are important for these high mountain areas between South and Central Asia, particularly with respect to hydrology and climatology.
April 28, 2021 - Injectable dermal fillers provide a minimally invasive approach to reduce facial lines and wrinkles while restoring volume and fullness in the face.
Constantina Theofanopoulou wanted to study oxytocin. Her graduate work had focused on how the hormone influences human speech development, and now she was preparing to use those findings to investigate how songbirds learn to sing. The problem was that birds do not have oxytocin. Or so she was told.
"Everywhere that I looked in the genome," she says, "I was unable to find a gene called oxytocin in birds."
Researchers from Erasmus School of Economics, IESE Business School, and New York University published a new paper in the Journal of Marketing that examines what business schools do wrong when conducting academic research and what changes they can make so that research contributes to improving society.
The study, forthcoming in the Journal of Marketing, is titled "Faculty Research Incentives and Business School Health: A New Perspective from and for Marketing" and is authored by Stefan Stremersch, Russell Winer, and Nuno Camacho.
The flightless kakapo of New Zealand is in trouble. The world's heaviest parrot--representing one of the most ancestral branches of the parrot family tree--is nearly extinct, with barely 200 adults plodding the underbrush of four small islands. Whether the last of the kakapos had the genetic resilience to survive was a question that only high-quality genomic analysis could answer.
But a high-quality genome assembly did not exist for the kakapo--nor for most of the 70,000 vertebrate species alive today.
The highly infectious SARS-CoV-2 variant that recently emerged in South Africa, known as B.1.351, has scientists wondering how existing COVID-19 vaccines and therapies can be improved to ensure strong protection. Now, researchers reporting in ACS' Journal of Medicinal Chemistry have used computer modeling to reveal that one of the three mutations that make variant B.1.351 different from the original SARS-CoV-2 reduces the virus' binding to human cells -- but potentially allows it to escape some antibodies.