Tag: "units" at biology news

NSF announces six 'FIBR' awards to tackle some of biology's most challenging questions

... of molecules arise, persist and evolve as modular units throughout biology. The six FIBR projects in... how whole molecular networks may serve as modular units for function, regulation and evolution -- Washington University, St. Louis (lead), Colgate Universit...

Protein is key for digestive function of the pancreas

...reted by pancreatic acinar cells are packaged into units called zymogen granules. Upon stimulation with hormones like cholecystokinin (CCK), zymogen granules are emptied via a process called exocytosis into ducts leading to the small intestine. In some pathological conditions, the digestive enzymes are ...

Two Virginia Tech energy-related inventions win R&D 100 awards

... Vijayendran explained in the R&D 100 entry. Large units could be used in autos and homes but McGrath says first use will likely be lipstick-sized units in cell phones and computers, where they will provide a much longer service life and weigh less than...

Israeli scientists reveal the plan of a key cellular machine

... tend to be flexible, allowing the position of the units to vary in relation to each other. Thus pinning do...res allowed the scientists to view the spliceosome units in as close to a natural state as possible. From thousands of images, each at a slightly different a...

Study by Israeli scientists provides insight on DNA code

... tend to be flexible, allowing the position of the units to vary in relation to each other. Thus pinning do...res allowed the scientists to view the spliceosome units in as close to a natural state as possible. From thousands of images, each at a slightly different a...

Researchers show how to assemble building blocks for nanotechnology

...aircase assemblies could serve as basic structural units to further prepare materials with more complex structures such as tubes, helices and 3-D networks that could in turn, serve as scaffolds or templates for assembly of electronic or optical components, or as channels for transport of liquids or molecul...

Scientists visualise cellular handmaiden that restores shape to proteins

...prises three separate parts - two identical 'cage' units lashed back to back, and a 'cap' unit that sits at...t in the act," says Professor Iwata. In molecular units known as Daltons, the structure of the native chaperonin complex weighs 700 kiloDaltons. It is so bi...

Using statistics to decipher secrets of natural mutation

...hemical characteristics of the four DNA nucleotide units adenine, guanine, cytosine and thymine that affect their vulnerability to modification and the accuracy with which they are replicated when cells divide. Particular nucleotide sequences, for example cytosine-guanine (CpG) dinucleotides, form "hotsp...

MSU group reviews Berkeley venture into brave new science funding world

...industry agreements that involve complete academic units or large groups of researchers. Reassess the broad implications of conflicts of interest that stretch beyond researchers and include administrators and those serving on national and international advisory panels. Encourage broad debate early in t...

Fluid derived from aloe plant prolongs life after hemorrhagic shock in animal study

...care director of the trauma/surgery intensive care units at the University of Pittsburgh Medical Center....

Why some neonates need caffeine

...ng control in premature infants, and neonatal care units habitually use methylxanthine derivatives such as caffeine to treat these patients who are less than a month old. Caffeine treatment for premature infants is supposed to increase breathing frequency, decrease the number of apneic spells, and reduce p...

How DNA repair machinery is a 'Two-Way Street'

...place in a newly forming DNA strand. Normally such units -- called nucleotides -- on one strand of the double-stranded DNA molecule bond with complementary nucleotides on the other strand, like complementary pieces of a puzzle. Thus, an adenine on one strand is normally paired with a thymine on the other, ...

Energy conservation targets hit by notions of 'comfort'

...ong regulation a 'big stick' or a ban on domestic units would halt the trend. Others suggested that changes throughout the design process would be needed as at present there were no 'brownie points' for environmental innovation or for initiating debate about the long-term sustainability of providing stan...

Harmless virus helps slow HIV by boosting immune proteins

...o be screened for GBV-C, even though about 1 in 70 units of blood in the United States contains the virus. Currently there is only one medication available, Fuzeon, that blocks HIV at the early stage of the virus' replication, before it even enters T cells. But this drug costs up to $25,000 per year and m...

A gene that keeps species apart

...s characterizes organisms as distinct reproductive units and species as groups of individuals that can interbreed and produce viable, fertile offspring. The lack of genetic exchange between species, called reproductive isolation, lies at the heart of this definition. At the heart of reproductive isolatio...

ASU advance could provide insight into human's ability to recognize patterns

...cal memory works, it employs discrete state memory units while most biological units are oscillatory. "Our work is the first demonstration of the possibility for oscillatory networks to...

Feeding cottonseed meal to female fallow deer safe at low rates

...ght for the high-cottonseed-meal group. In English units of measurement, these gossypol amounts corresponded from about 0.00006 to about .00012 of an ounce per pound of body weight, respectively. Like most seasonal breeding animals, fallow deer generally lose weight through the fall and winter. All the d...

Teachers turn to Tolkein to explain physics

...s" away and would also mean having to redefine the units of energy (the Joule) and force (the Newton). Also in this issue: Gravity hunt goes underground US science adviser takes on his critics Hubble successor shifts to the red Challenges for a new Europe US threat to European journals Beating the di...

Discovery helps explain how cells package DNA

..., modifies the histone proteins by adding chemical units known as acetyl groups. The present study shows that the Hat B enzymes not only chemically modify histone proteins in cytoplasm--the region of the cell outside the nucleus--but that they remain attached to the histones as the proteins travel into the...

Research bank makes good use of umbilical cords

...taminated with bacteria. The bank aims to have 500 units frozen to be available free of charge to local inv...I. "We are currently working to provide cord blood units to all researchers that are interested in studying stem cells," Goldman said. "We also are encouragi...

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