Showing 20 articles starting at article 921

< Previous 20 articles        Next 20 articles >

Categories: Biology: Molecular, Computer Science: General

Return to the site home page

     (via sciencedaily.com)     Original source 

In many animals, including ants, the blood-brain barrier (BBB) ensures normal brain function by controlling the movement of various substances in and out of the brain. Now, researchers have made the unexpected discovery that the BBB in carpenter ants plays an active role in controlling behavior that's essential to the function of entire ant colonies. The key is production in the BBB of a particular hormone-degrading enzyme.

     (via sciencedaily.com) 

By adding synergistic self-adjuvanting properties to COVID-19 RNA vaccines, researchers showed they could significantly boost the immune response generated in mice.

     (via sciencedaily.com)     Original source 

Genetic manipulation of a puzzling, miniscule bacteria that has lived in human mouths at least since the Middle Stone Age is elucidating the genes needed for its unusual lifestyle. These Patescibacteria in the human oral microbiome reside on the surface of another, larger host microbe. Found in many water and land environments, Patescibacteria in general lack the genes required to make many molecules necessary for life, such as the amino acids that make up proteins, the fatty acids that form membranes, and the nucleotides in DNA. This has led researchers to speculate that many of them rely on other bacteria to grow. In a new study, researchers present the first glimpse into the molecular mechanisms behind their relationship with their host cells. They also share details gleaned from fluorescent, time-lapse microsopic imaging of these bacteria as they bud and send out swarms of tiny progeny, only a fraction of which are able to establish a host relationship.

     (via sciencedaily.com)     Original source 

When dairy cows are fed diets with reduced protein concentrations -- aimed at decreased environmental nitrogen pollution from their manure such as nitrate leaching, nutrient-laden run-off and ammonia volatilization -- their milk production can suffer. Supplementing the amino acid histidine may help in maintaining, and even increasing, milk and milk-protein yields.

     (via sciencedaily.com)     Original source 

A new nanocomplex renders a tumor harmless -- and, on top of that, it trains the immune system to detect and eliminate metastases.

     (via sciencedaily.com)     Original source 

Herpes is not only unpleasant but it can, in some cases, also have dangerous complications and life-threatening consequences. A research team has now introduced a completely new approach for treating herpes. Their method is based on the inhibition of an enzyme that is needed for the release of newly formed virus particles from infected cells.

     (via sciencedaily.com)     Original source 

Scientists have identified a key part of a mechanism that annotates genetic information before it is passed from fathers to their offspring. The findings shed new light on genomic imprinting, a fundamental, biological process in which a gene from one parent is switched off while the copy from the other parent remains active. Errors in imprinting are linked to a host of diseases, such as the rare disease Silver-Russell syndrome along with certain cancers and diabetes.

     (via sciencedaily.com)     Original source 

Human immune cells are capable of coordinating their own movement more independently than previously thought. Researchers discovered that immune cells do not just passively follow the chemical cues in their environment. Quite the contrary, they can also shape these cues and navigate in complex environments in a self-organized manner.

     (via sciencedaily.com)     Original source 

A team of researchers has revealed that the Dumpy protein, a component of extracellular matrices -- or ECM -- is the key factor in regulating the stereotypic origami-like folding of wing-cell sheets. Their findings that wing cells never divide during folding nor do they exhibit spatially distinct behaviors suggest how external cues can create consistent 3D tissue structures.

     (via sciencedaily.com) 

A team of scientists developed a new machine learning model for discovering critical-element-free permanent magnet materials based on the predicted Curie temperature of new material combinations.

     (via sciencedaily.com) 

Important progress for RNA research: A team has discovered a new ribozyme that can label RNA molecules in living cells.

     (via sciencedaily.com)     Original source 

A new study has shown that a subtype of avian flu virus, endemic in poultry farms in China, is undergoing mutational changes, which could increase the risk of the disease being passed on to humans.

     (via sciencedaily.com)     Original source 

Cancers, degenerative diseases: deregulation of our cells' internal communication pathways is at the root of many conditions. Microtubules -- microscopic protein filaments -- play a crucial role in controlling these exchanges. However, their mechanisms remain poorly understood. A team has identified a new mechanism, involving two proteins, that governs their growth. The discovery opens up unprecedented prospects for the development of new treatments that can act at the very heart of cells.

     (via sciencedaily.com) 

Digital information exchange can be safer, cheaper and more environmentally friendly with the help of a new type of random number generator for encryption. The researchers behind the study believe that the new technology paves the way for a new type of quantum communication.

     (via sciencedaily.com)     Original source 

When fighting disease, our immune cells need to reach their target quickly. Researchers have now discovered that immune cells actively generate their own guidance system to navigate through complex environments. This challenges earlier notions about these movements. The researchers' findings enhance our knowledge of the immune system and offer potential new approaches to improve human immune response.

     (via sciencedaily.com)     Original source 

Researchers have discovered some new and surprising ways that viral RNA and influenza virus are detected by human lung cells, which has potential implications for treating people affected by such viruses.

     (via sciencedaily.com) 

A new technique can synchronize media streams from different networks to multiple devices with less than 10 milliseconds of delay. The technique was demonstrated on cloud gaming, but could also be applied in AR/VR applications.

     (via sciencedaily.com) 

The day when robots can cook dinner, clear the kitchen table and empty the dishwasher is still a long way off. First, robots need to be able to recognize the many items of different sizes, shapes and brands in our homes. A team has now made a significant advance toward that technology with a robotic system that uses artificial intelligence to help robots better identify and remember objects.

     (via sciencedaily.com) 

A soft ball designed to support mental health by 'personifying' breath has been invented by a computer science student.

     (via sciencedaily.com) 

We live in an analog world of continuous information flow that is both processed and stored by our brains at the same time, but our devices process information digitally in the form of discrete binary code, breaking the information into little bits (or bites). Researchers have revealed a pioneering technology that combines the potential of continuous analog processing with the precision of digital devices. By seamlessly integrating ultra-thin, two-dimensional semiconductors with ferroelectric materials, the research unveils a novel way to improve energy efficiency and add new functionalities in computing. The new configuration merges traditional digital logic with brain-like analog operations.