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Biology 亚博棋牌平台
December 10, 2020

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A Gene from Ancient Bacteria Helps Ticks Spread Lyme Disease

One reason ticks spread Lyme disease so well goes back to a unique evolutionary event. Researchers discovered that an antibacterial enzyme in ticks, Dae2, protects them from bacteria found on human ...

Inhaled Vaccine Induces Fast, Strong Immune Response in Mice and Non-Human Primates

Researchers demonstrate in a new study that a phage-based inhalation delivery system for vaccines generates potent antibody responses in mice and ...

Cataloging Nature's Hidden Arsenal: Viruses That Infect Bacteria

A new approach for studying phage-bacteria interactions will help scientists study the intricate offensive and defensive chemical tactics used by parasite and host. These microscopic battles have ...

Neuropeptide Discoveries Could Someday Help Defeat the Dreaded Cockroach

Cockroaches are notorious for their abilities to survive and reproduce, much to humanity's chagrin. In addition to scurrying around at night, feeding on human and pet food, and generating an ...
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Ferrets, Cats and Civets Most Susceptible to Coronavirus Infection After Humans

An analysis of ten different species finds that humans -- followed by ferrets and, to a lesser extent cats, civets and dogs -- are the most susceptible animals to SARS-CoV-2 ...

DeepLabCut-Live! Real-Time Marker-Less Motion Capture for Animals

Behavioral scientists introduce DeepLabCut-Live!, a deep-learning tool that can enable real-time feedback studies on animal movement and posture. The software features 'maker-less' ...

Magnesium Contact Ions Stabilize the Macromolecular Structure of Transfer RNA

In cells transfer RNA (tRNA) translates genetic information from the encoding messenger RNA (mRNA) for protein synthesis. New results from ultrafast spectroscopy and in-depth theoretical calculations ...

With the help of newly discovered skulls and skeletons that were unearthed in North America, Brazil, Argentina, and Madagascar in recent years, researchers have demonstrated that a group of ...

Compared to chimpanzees, our closest evolutionary cousins, humans are particularly prone to developing advanced carcinomas -- the type of tumors that include prostate, breast, lung and colorectal ...

The Use of Wild Mammals in Traditional Medicine

Investigators identified 565 mammalian species that have been used to source products used in traditional medicine around the world, especially in Asia, Africa, and Latin ...

When Strains of E.coli Play Rock-Paper-Scissors, It's Not the Strongest That Survives

What happens when different strains of bacteria are present in the same system? Do they co-exist? Do the strongest survive? In a microbial game of rock-paper-scissors, researchers uncovered a ...

Understanding COVID-19 Infection and Possible Mutations

The binding of a SARS-CoV-2 virus surface protein spike -- a projection from the spherical virus particle -- to the human cell surface protein ACE2 is the first step to infection that may lead to ...

Vitamin Boosts Essential Synthetic Chemistry

Inspired by light-sensing bacteria that thrive near hot oceanic vents, synthetic chemists use vitamin B12 to catalyze valuable hydrocarbons known as olefins, or alkenes. The mild process eliminates ...

Potential Antibiotic for Drug-Resistant Pathogen

Scientists have developed a possible new antibiotic for a pathogen that is notoriously resistant to medications and frequently lethal for people with cystic fibrosis and other lung ...

Coral Recovery During a Prolonged Heatwave Offers New Hope

Biologists have discovered how some corals managed to survive a globally unprecedented heatwave, in a first-ever study that provides new hope for the long-term survival of coral reefs in the face of ...

Climate Change Exacerbates Biodiversity Loss

A considerable number of existing and proposed post-2020 biodiversity targets are at risk of being severely compromised due to climate change, even if other barriers such as habitat exploitation are ...

Research Team Invents Novel Light-Controlled Contamination-Free Fluidic Processor for Advanced Medical and Industrial Applications

A mechanical engineering research team has invented a novel light-controlled, contamination-free fluidic processor, which can serve as a useful tool to greatly reduce the risk of infection of ...

How Poor Oral Hygiene May Result in Metabolic Syndrome

Researchers have identified a novel mechanism by which periodontal disease may cause metabolic syndrome. By studying patients with metabolic syndrome, the researchers demonstrated high antibody ...

'SCOUT' Helps Researchers Find, Quantify Significant Differences Among Organoids

Unbiased, high-throughput 'pipeline' system clears, labels, images and analyzes organoids to improve their utility for understanding development and diseases such as Zika ...

Magnetic Bacteria as Micropumps

Scientists use magnetic bacteria to control liquids at the micro level. They are already thinking about using them in the human bloodstream for precision delivery of cancer drugs to a ...

Beavers May Help Amphibians Threatened by Climate Change

A study of pond sites in the Cascades found greater amphibian diversity in sites with beaver damns. Red-legged frogs and northwestern salamanders, which develop more slowly, were detected almost ...

Smellicopter: An Obstacle-Avoiding Drone That Uses a Live Moth Antenna to Seek out Smells

A team has developed Smellicopter: an autonomous drone that uses a live antenna from a moth to navigate toward smells. Smellicopter can also sense and avoid obstacles as it travels through the ...

Why Some People May Become Seriously Ill from Meningococcal Bacteria

Researchers have come one step closer toward understanding why some people become seriously ill or die from a common bacterium that leaves most people unharmed. The researchers linked RNA mutations ...

Global Trends in Nature's Contributions to People

A new study examined the risks to human well-being and prosperity stemming from ongoing environmental ...

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