kinds 2 9

Tag: "kinds" at biology news

Inflammation markers identify fatigue in breast cancer survivors

...ancer survivors, Dr. Irwin said, such as different kinds of treatment, or biological events including anemia. Dr. Irwin and his colleagues' research is the first to document an association between biological mechanisms involved with the immune response and persistent fatigue. "It is such an important q...

What animals can tell us about hemorrhage, organ transplants and aging

...l occurred Comparative physiologists study all kinds of animals -- bears, frogs, snakes, squirrels, seals, oysters and a host of other animals to answer the question "How do they do that?" They uncover general physiological principles that may apply to humans, and may spur future medical advances to be...

Molecular anatomy of influenza virus detailed

...virus, has been able to distinguish five different kinds of influenza virus particles in the same isolate (sample) and map the distribution of molecules in each of them. This breakthrough has the potential to identify particular features of highly virulent strains, and to provide insight into how antibodie...

Mayo Clinic collaboration mining of ancient herbal text leads to potential new anti-bacterial drug

...umphius: "... these same kernels ... will halt all kinds of diarrhea, but very suddenly, forcefully and powerfully, so that one should use them with care in dysentery cases, because that illness or affliction should not be halted too quickly; and some considered this medicament a great secret, and relied o...

How does a zebrafish grow a new tail?

...n which spot to take to help form the embryo, what kinds of cells to become there, and how many cells like themselves should be reproduced. These streams of signals also tell stem cells in adult organisms what functions to undertake. Once tissue formation starts, something has to tell it to stop before gro...

A simple feedback resistor switch keeps latent HIV from awakening

...it a likely target for regulating latency. In some kinds of molecular switches, the conversion between on and off states is regulated by self-oligomerization, or binding to several other identical molecules. The shape changes induced by binding or unbinding drive the complex into two different stable confo...

On the golf tee or pitcher's mound, brain dooms motion to inconsistency

... says, could come in future efforts to achieve new kinds of computing by building artificial circuits modeled on the brain. But Shenoy says the research simply set out to explain variability in movement. "This is basic science," Shenoy says. "We ask questions because we want to know." The study could h...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...er will encourage researchers who are studying all kinds of semi-aquatic animals to take a closer look at how they are using their noses underwater. ...

Fatty fish protects against cancer

...itutet in Sweden shows that eating salmon or other kinds of fatty fish a few times a month would be one good way to go about it. At the end of the 1980s, 90,000 Swedish women were sent a questionnaire on their dietary habits in connection with their mammography scan. Now, with the help of another question...

Fruit fly aggression studies have relevance to humans, animals

...ht at all. Selection experiments only show these kinds of results when there is some genetic control over the trait being selected. In this case, the genetic effect was not very strong ?the heritability, or genetic contribution to, aggressive behavior was about 10 percent. The other 90 percent had to be ...

History-hunting geneticists can still follow familiar trail

...ulation geneticists have used mitochondria for all kinds of work for 20 years, and to think that mtDNA didn't correlate with population size was clearly going against the dogma. This study shows the dogma is safe in mammals and probably in vertebrates, as well."...

Mars mission Risk 29: Scientists research ways to reduce radiation-induced brain damage

...scientists have studied. "These are very obscure kinds of radiation that on Earth we would only see in th...a handful of laboratories in the world where these kinds of high-energy particles can be produced," Britten said. His team will be work closely with scientis...

Microbe fixes nitrogen at a blistering 92 C

...e of nitrogen fixation, perhaps even preceding the kinds of bacteria today's plants and animals rely on to fix nitrogen. The genetic analysis reported in the Dec. 15 issue of Science supports the notion that the gene needed to produce nitrogenase ?an enzyme capable of converting nitrogen gas, that's unus...

Chemical tests of cell growth enter third dimension

...sages, or the effect of a single drug on different kinds of cells taken from the body. Shang-Tian Yang, professor of chemical and biomolecular engineering at Ohio State, and his colleagues described the two technologies Wednesday and Thursday at the American Chemical Society Fall National Meeting in San F...

Motorola researchers develop selective sensors based on carbon nanotubes

... "This is a fairly general sensor platform for all kinds of applications," said Nongjian Tao, an electrical engineering professor at Arizona State University and one of the researchers on the project. "We tested heavy metal ions in water, but the platform can be applied to many other areas to sense toxic c...

First biomarker for human sleepiness identified in fruit flies

... his search, Shaw subjected the flies to different kinds of sleep deprivation and used microarrays to look .... Hopefully the markers we develop will make these kinds of phenomena much easier to study." ...

Regulating the nuclear architecture of the cell

...ing of beads that further coils to form one of two kinds of chromatin, either euchromatin or heterochromatin. Most genes reside in euchromatin, which is of relatively low density and where the DNA is more accessible to the machinery of gene transcription. By contrast, heterochromatin is dense and conta...

Selecting life: Scientists find new way to search for origin of life

...the ancient Earth must have had far more different kinds of molecules than could have been used by early li...rent species in the global seas. How were specific kinds of organics selected to assemble into the first forms of life, and by what process were they suffici...

Clue found to Epstein-Barr virus' ability to form and sustain tumors

... also causally associated with at least four other kinds of human cancers, including Hodgkin's lymphomas, lymphomas in AIDS patients and organ transplant recipients as well as nasopharyngeal carcinomas. The SMPH researchers, based at the McArdle Laboratory for Cancer Research, focused on a viral protein t...

Cities change the songs of birds

...ban life, researchers have gained insight into the kinds of environmental pressures that influence where particular songbirds thrive, and the specific attributes of city birds that allow them to adjust to noisy urban environments. The findings, reported by Hans Slabbekoorn and Ardie den Boer-Visser of Leid...

1 2 3 4 5 6 7 8 9 10