Many medical devices for treating heart failure generate nonphysiological shear flow. This can trigger the destruction of red blood cells after implantation of ventricular assist devices (VADs), artificial heart valves, vascular ...
General Physics
Nov 1, 2022
0
59
Three distinct phases of climate variability in eastern Africa coincided with shifts in hominin evolution and dispersal over the last 620,000 years, an analysis of environmental proxies from a lake sediment record has revealed.
Earth Sciences
Sep 26, 2022
0
162
The brain is an extremely complex organ whose exact functioning remains difficult to understand. On average, the human brain contains 100 billion neurons that fire upon receiving input signals from multiple sensory organs. ...
General Physics
Sep 19, 2022
0
732
A multidisciplinary team of Indiana University researchers have discovered that the motion of chromatin, the material that DNA is made of, can help facilitate effective repair of DNA damage in the human nucleus—a finding ...
Cell & Microbiology
Sep 2, 2022
0
163
Stress is a widespread phenomenon that occurs when, for example, humans feel threatened or overwhelmed, have too much work or are in imminent danger. We communicate to others that we are stressed through our behavior and ...
Plants & Animals
May 25, 2022
0
46
A study led by research groups of Prof. Fu Qiaomei from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences and Prof. Zhang Hucai from Yunnan University covers the largest ...
Evolution
May 27, 2021
1
22
The world inside the human cell has grown a bit more interesting in recent years as the role of a new biological structure became clearer.
Biochemistry
Sep 9, 2020
0
26
Researchers have revealed a new molecular mechanism by which bacteria adhere to cellulose fibers in the human gut. Thanks to two different binding modes, they can withstand the shear forces in the body. Scientists of the ...
Cell & Microbiology
Aug 28, 2020
0
362
At the start of a COVID-19 infection, the coronavirus SARS-CoV-2 docks onto human cells using the spike-like proteins on its surface. The spike protein is at the centre of vaccine development because it triggers an immune ...
Cell & Microbiology
Aug 18, 2020
0
386
A groundbreaking study using molecular genetic techniques and field studies brings together decades of research into the complex relationships among beluga whales (Delphinapterus leucas) that spans 10 locations across the ...
Plants & Animals
Jul 10, 2020
0
762
