Culture
In human cells, the nucleus is enclosed by a structure called the nuclear pore complex (NPC). It acts as a 'gatekeeper' controlling the transport of molecules between the nucleus and the surrounding cytoplasm (the protein-containing solution in the inside of a cell). The NPC consists of proteins known as nucleoporins; some of these, the so-called FG-NUPs, belong to the class of intrinsically disordered proteins (IDPs) and capable of forming liquid-?liquid phase separation (LLPS), lacking a well-defined tertiary structure (that is, a particular 3D shape).
Vortex is ubiquitous in nature including spiral arms of galaxy, planet rotation, hurricane (tornado). A vortex is a typical and well-known magnetic domain structure in dimensionally confined nanostructures with a symmetry determined by its polarity and circulation. Reversible control of low-dimensional spin structures at nanoscale with low energy consumption is highly desirable for future applications of spintronic devices. Especially, magnetic vortex at nanoscale has been explored for the next-generation data-storage devices.
A new study of prospective teachers finds that they are more likely to interpret the facial expressions of Black boys and girls as being angry, even when they are not. This is significantly different than how the prospective teachers interpreted the facial expressions of white children.
The authors coined the term "racialized anger bias" after an earlier study found similar results in prospective teachers' judgments of Black and white adults. These new results indicate there is also racialized anger bias against Black children.
New Orleans, LA - Researchers at LSU Health New Orleans Neuroscience Center of Excellence and colleagues have discovered a new class of pipeline drugs to relieve pain and reduce fever without the danger of addiction or damage to the liver or kidneys. The research is published online in the European Journal of Medicinal Chemistry.
Tiny eye movements can be used as an index of humans' ability to anticipate relevant information in the environment independent of the information's sensory modality, a team of scientists has found. The work reveals a connection between eye movements and the sense of touch.
The microbial composition of the intestines is complex and varies widely from one individual to another. Many factors such as environmental factors, lifestyle, genetics or illnesses affect the intestinal ecosystem of helpful gut bacteria.
Dirk Haller, Professor for Nutrition and Immunology at TUM, and his team have examined the importance of daytime-dependent fluctuations of the gut microbiome in relation to type 2 diabetes; they present their study encompassing more than 4000 people and it is the first study in this field based on a large prospective human cohort.
A team of Skoltech researchers from the Severinov laboratory and their colleagues have identified the way in which a component of a two-part bacterial self-defense system from the toxin-antitoxin family works, leading to cell dormancy that helps fight off bacterial viruses, antibiotics and other insults.
Liquid droplets formed from DNA display a peculiar response to enzymes. An international collaboration between Ludwig-Maximilians-Universitaet (LMU) in Munich and UCSB has now been able to explain the mechanisms behind bubble formation.
The brain has a high energy demand and reacts very sensitively to oxygen deficiency. Ludwig-Maximilians-Universitaet (LMU) in Munich neurobiologists have now succeeded for the first time in directly correlating oxygen consumption with the activity of certain nerve cells.
The active agents of many drugs are natural products, so called because often only microorganisms are able to produce the complex structures. Similar to the production line in a factory, large enzyme complexes put these active agent molecules together. A team of the Technical University of Munich (TUM) and the Goethe University Frankfurt has now succeeded in investigating the basic mechanisms of one of these molecular factories.
Abu Dhabi, UAE, July 6, 2020: As many diseases, including neurodegenerative diseases such as Alzheimer's, have been linked to the defective functioning of motor proteins in cell transport systems, understanding the intricacies of how motor proteins work in their native crowded cell environments is essential to understanding what goes wrong when they function incorrectly.
As dying stars take their final few breaths of life, they gently sprinkle their ashes into the cosmos through the magnificent planetary nebulae. These ashes, spread via stellar winds, are enriched with many different chemical elements, including carbon.
Findings from a study published today in Nature Astronomy show that the final breaths of these dying stars, called white dwarfs, shed light on carbon's origin in the Milky Way.
A new analysis of white dwarf stars supports their role as a key source of carbon, an element crucial to all life, in the Milky Way and other galaxies.
BATON ROUGE, LOUISIANA, July 6, 2020--Puerto Rico's population of African-European hybrid honey bees (AHB) are famously known for being much gentler than their continental counterparts. Now Agricultural Research Service (ARS) scientists and their colleagues have found that this reduced defending of the nest is determined by colony-level genetics as opposed to individual bee's DNA, according to a study just published in the Proceedings of the National Academy of Sciences.
PULLMAN, Wash. -- Washington State University researchers have developed an easy-to-use software program to identify drug-resistant genes in bacteria.