搜索结果: 1-15 共查到“国际动态 理学 Mechanism”相关记录16条 . 查询时间(0.125 秒)
Protein structure offers clues to drug-resistance mechanism（图）
蛋白质结构 耐药机制 细菌细胞
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2023/6/7
MIT chemists have discovered the structure of a protein that can pump toxic molecules out of bacterial cells. Proteins similar to this one, which is found in E. coli, are believed to help bacteria bec...
Previously unknown mechanism causes increased forest water use（图）
unknown mechanism forest water use
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2019/10/22
Researchers have discovered a previously unknown mechanism that causes increased water use in forests, advancing our understanding of forest water cycles and highlighting threats to plants from water ...
Flu researchers discover new mechanism for battling influenza（图）
Flu researchers new mechanism battling influenza
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2017/11/23
Just as flu season swings into full gear, researchers from the CU Boulder and University of Texas at Austin have uncovered a previously unknown mechanism by which the human immune system tries to batt...
Biochemists Discover Mechanism That Helps Flu Viruses Evolve（图）
Biochemists Flu Viruses Evolve
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2017/10/24
Influenza viruses mutate rapidly, which is why flu vaccines have to be redesigned every year. A new study from MIT sheds light on just how these viruses evolve so quickly, and offers a potential way t...
Scientists discover spring-loaded mechanism in unusual species of trap-jaw ant（图）
scientists spring-loaded mechanism trap-jaw ant
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2017/9/19
Researchers reveal how a group of trap-jaw ants can snap their jaws shut at speeds of up to 50 miles per hour – just fast enough to capture their elusive prey.
They report their findings in the Journ...
Flexibility is key in mechanism of biological self-assembly
Flexibility key in mechanism biological self-assembly
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2017/3/30
A new study has modeled a crucial first step in the self-assembly of cellular structures such as drug receptors and other protein complexes, and found that the flexibility of the structures has a dram...
Penn Study Identifies New Mechanism of RNA Degradation in Plants
Penn Study RNA Degradation Plants
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2016/11/4
The totality of RNA molecules in an organism at any one time is the product of a delicate dance. Genes must be “turned on,” or expressed, in order to turn DNA into RNA and then that RNA into proteins ...
Researchers reproduce mechanism of slow earthquakes
Researchers reproduce mechanism slow earthquakes
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2016/4/13
Up until now catching lightning in a bottle has been easier than reproducing a range of earthquakes in the laboratory, according to a team of seismologists who can now duplicate the range of fault sli...
ASU studies are first time an anticipatory mechanism has been found in social organisms
ASU anticipatory mechanism social organisms
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2016/4/13
Keeping honeybees healthy is critical to the world’s food supply.A lack of adequate nutrition for bees is blamed as one of many possible causes for colony collapse disorder — a mysterious syndrome tha...
Genetic mechanism found for fish adaptations to pollution
Genetic mechanism fish pollution
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2016/2/23
A Washington State University biologist has found the genetic mechanism that lets a fish live in toxic, acidic water. The discovery opens new insights into the functioning of other “extremophiles” and...
Study Finds Key Molecular Mechanism Regulating Plant Translational Activity
Key Molecular Mechanism Plant Translational
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2015/11/12
The central role of translation in modulating gene activity has long been recognized, yet the systematic exploration of quantitative changes in translation at a genomewide scale in response to a speci...
Biochemists uncover structure of cellular memory mechanism
Biochemists cellular memory mechanism
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2015/11/13
Calcium is a crucial element in the body that controls thought, movement and other bodily functions. These events are directed by specialized proteins called ion channels that allow the flow of calciu...
OU Geologist Collaborates on Study to Determine Mechanism Associated with Fault Weakening in Earthquakes
OU Geologist Collaborates on Study Mechanism Associated Fault Weakening Earthquakes
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2015/5/25
A University of Oklahoma structural geologist and collaborators are studying earthquake instability and the mechanisms associated with fault weakening during slip. The mechanism of this weakening is c...
Study Proposes Common Mechanism for Shallow and Deep Earthquakes
Common Mechanism Shallow and Deep Earthquakes
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2015/5/25
Earthquakes are labeled “shallow” if they occur at less than 50 kilometers depth. They are labeled “deep” if they occur at 300-700 kilometers depth. When slippage occurs during these earth...
New mechanism unlocked for evolution of green fluorescent protein
New mechanism unlocked green fluorescent protein
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2015/3/4
A primary challenge in the biosciences is to understand the way major evolutionary changes in nature are accomplished. Sometimes the route turns out to be very simple. An example of such simplicity is...