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Tag: "tie" at biology news

New Clues Add 40,000 Years to Age of Human Species

...oughly 130,000 years. No one was able to securely tie both sets of fossils to the same time period. "Fortunately, small pumice fragments from two sediment layers were perfect for precise isotopic dating," says McDougall. “The pumice clasts are produced by explosive volcanic eruptions, and the rocks w...

Researchers make gains in understanding antibiotic resistance

... "The idea is to take a bit of one antibiotic and tie it to another. So, if resistance arises due to a mutation in one site, there is still another binding site that can be targeted. It's like multiple drug therapies for HIV, in which the drugs attack several sites at once. And if the virus mutates to a...

Penn Researchers Use Robotic Surgery

...nal instruments. They were also able to suture and tie knots deep in the mannequin's throat with relative ease ?a task exceptionally challenging without the aid of robotic technology. In the second study, the surgeons performed a variety of surgical procedures on a human cadaver. They concluded that rob...

Two new retroviruses—transmitted from animals—identified

...nal instruments. They were also able to suture and tie knots deep in the mannequin's throat with relative ease ?a task exceptionally challenging without the aid of robotic technology. In the second study, the surgeons performed a variety of surgical procedures on a human cadaver. They concluded that rob...

NIH creates nationwide network of molecular libraries screening centers

...ses supporting the network, which will allow us to tie together data from diverse fields of science in ways not previously brought to bear on important health problems," said NHGRI Director Francis S. Collins, M.D., Ph.D. The nine institutions receiving grants as part of the Molecular Libraries Screenin...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...pair simple everyday activities. NASA is trying to tie together satellites and stations on the ground to develop a "sensor web" to track this pollution and improve air quality forecasts. Understanding how tropospheric or near-surface-level ozone is produced, distributed and transported from city to city...

Skull study sheds light on dinosaur diversity

...rs that would have allowed that stance, and we can tie the appearance of those features with the proliferation of wide gauge tracks everywhere in the fossil record at the end of the dinosaur era." Wilson wonders if the change in locomotion---from typical sauropod narrow-gauge walking to titanosaur wide-g...

Many needles, many haystacks

...otifs have been below the radar of most methods to tie protein structures to disease." ...

Researchers unravel DNA tangles and enzyme seamstresses

... principles we work with can be useful some day to tie up DNA in cancer cells and kill them off," says U of T biochemist Hue Sun Chan, the study's co-author and a Canada Research Chair in proteomics, bioinformatics and functional genomics.The study is co-authored by Professor Lynn Zechiedrich of Baylor C...

Alaska seal pup diet may hold key to decline of population

...ion plays in the life of the harbor seal and could tie the declining population of seals and other marine mammals with the change in availability of seal prey, including herring," lead author Lori Polasek said. *Paper presentation: "Growth and body condition of harbor seals on high and low fat diets," 1...

In drug design, a loose fit may be best bet

...ter signal. A tight connection, alternatively, may tie up a hormone with its GPCR, activating one G-protein, and limiting its signaling ability. In future studies, the scientists hope to determine whether their findings are consistent with other hormone-GPCR reactions. Other researchers taking part in t...

Scientists solve 30-year-old mystery of mutant mouse's kidney woes

...al hydronephrosis. However, they frequently cannot tie it to any causative factors, making it difficult to determine how normal molecular and cellular processes in kidney development break down in infants affected by the condition. Researchers at The Jackson Laboratory first noted the mouse line's muta...

Soil nutrition affects carbon sequestration in forests

... soil nutrition, forests increase their ability to tie up, or sequester carbon in woody biomass under increasing atmospheric CO2 concentrations," says Kurt Johnsen, SRS researcher involved in the project. "With lower soil nutrition, forests still sequester carbon, but cannot take full advantage increasin...

Slow brain waves play key role in coordinating complex activity

...might be more of an executive control mechanism to tie different brain areas together, whereas high-gamma waves within a region tie groups of cells together and time when their output can be sent or when input from another area can ...

Researchers discover mechanism that determines when detailed memories are retained

...nce being remembered. The results are the first to tie levels of acetylcholine to memory specificity and could have implications in the study and treatment of memory-related disorders. The findings appear in the November issue of the journal Neurobiology of Learning and Memory. "This is the first t...

How fish conquered the ocean

... is most satisfying that Dr. Finn has been able to tie the threads together in molecular and evolutionary terms with their impressive, comparative sequence alignment study of the involved yolk genes and proteins as published in PLoS ONE". In the paper the authors (RN Finn & BA Kristoffersen) have...

Reconstructing the biology of extinct species: A new approach

...count. The research revealed that this functional tie between the semicircular canals and locomotor pattern is evident both within the primates alone and within the entire mammalian sample. "How an animal moves is a basic adaptation," says Walker, an expert in primate locomotion. "Now we have a way ...

Modeling the restless brain

...ate fluctuations come from. It also would let them tie neural activity to cognitive and behavioral performance and ask questions about differences in the brains of individual persons. Sporns said this research could lead to clinical applications, offering new diagnostic tools for brain disorders such...

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(Date:4/17/2014)... one per eight hundred births, Down syndrome - or ... of intellectual disability. It results from a chromosomal abnormality ... of chromosome 21 (1% of the human genome). A ... the Department of Genetic Medicine and Development at the ... Nature , shed light on how the extra ...
(Date:4/17/2014)... Stem cells in bone marrow need to produce hydrogen ... tissue, according to a new study from the Center ... of Dentistry of USC. , Professor Songtao Shi, principal ... sulfide produced by the cells governs the flow of ... cellular signals that results in osteogenesis, or the creation ...
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(Date:4/18/2014)... new article published online in The Gerontologist ... religious music is associated with a decrease in anxiety ... sense of control over their lives. In particular, listening ... anxiety about death and an increase in sense of ... whites, women and men, and individuals of both low- ...
(Date:4/18/2014)... Benaroya Research Institute at Virginia Mason (BRI) recently received ... in metastatic breast cancer reduces both the growth of ... scientists have found in models of the disease that ... 80 percent and can keep the tumor from metastasizing ... grant comes from the National Cancer Institute of the ...
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Breaking Medicine News(10 mins):Health News:Religious music brings benefit to seniors' mental health 2Health News:Benaroya Research Institute evaluates immunology approach to blocking breast cancer 2Health News:New clues on tissue scarring in scleroderma 2Health News:New pain relief targets discovered 2Health News:The ilk of human kindness 2
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