Tag: "both" at biology news
Time running out for South Asian vultures, ecologists warn
...erage of 50% in each year between 2000 and 2003 in both
India and Pakistan and long-billed vultures in India declined by 22% per year during the same period. The rare slender-billed vulture (Gyps tenuirostris) is also declining rapidly. All three species have been listed as Critically Endangered, the high...
Don't stand so close to me: A new view on how species coexist
...this work is that patterns of diversity are shaped both
by ecology and by evolution." One way of capturing the essence of the new work, he added, is expressed in the concept of the 'Darwinian demon' - a hypothetical species that develops rapidly, reproduces continuously and does not age. Trade offs in lif...
DNA sequence controls expression of gene involved in cancer
...r. The expression of the bcl-2 gene is regulated both
transcriptionally and posttranscriptionally. One w...tides outside the ARE that destabilizes bcl-2 mRNA both
in the absence and in the presence of the ARE. Because the region is composed mostly of cytosine and...
US researchers show cottonseed drug is cancer treatment booster
...nces the anti-tumour efficacy of radiation therapy both
in vitro and in vivo with increased induction of apoptosis. Dr. Xu explained: "The significance of this is that Bcl-2 and Bcl-xL proteins are over expressed in many cancers, making them resistant to drug and radiation treatment. So, it is not just pr...
Of lice and men
...n as the human species diverged. Genes from both
types of head lice are found on people today, suggesting that after infesting Homo erectus or another archaic human species for 1 million years, the second louse type jumped from that soon-to-be-extinct species and onto Homo sapiens. "In order...
An embryonic stem cell model for Parkinson's disease
...age and disease, and provide a tractable model for both
studying the molecular mechanisms of neurodegenerative disease and screening potential neuroprotectant drugs. The authors are hoping to extend their work to human embryonic stem cells, but their work is limited by the availability of such cells under...
HHMI researchers Richard Axel and Linda Buck win 2004 Nobel Prize
...om the olfactory bulb, odor signals are relayed to both
the brain's higher cortex, which handles conscious thought processes, and to the limbic system, which generates emotional feelings. Each olfactory neuron in the epithelium is topped by at least 10 hair-like cilia that protrude into a thin bath of mu...
How roots control plant shoots
...s. They have to be able to sense their environment both
above ground and below ground, and then respond to changes in the environment." "They can't just walk away," when water is in short supply, Sieburth says. Seeking the Chemical Signal To indicate what kind of hormone turned off leaf growth, Van ...
Talented sniffer: A receptor known for guiding sperm to egg plays a role in the nose
...eptor function of hOR17-4 seems to be identical in both
human sperm and olfactory neurons. In light of their findings, the authors propose a model in which a single receptor protein helps perform diverse chemosensory functions in the nose as well as in sperm. It is tempting to speculate that in the future...
New biomaterials improve medical devices
...elopment of a wide variety of medical products for both
preventive care and the treatment of disease. Exa...these challenges employ nanotechnology methods for both
diagnostic and imaging systems. Another strong theme will be the use of computer modeling to predic...
Pine cones lead to a fundamental change in clothing
...said Veronika, who has experience of designing for both
the high street and London Fashion Week, and has been working on the project part-time for three years. "It's up to me to work with the new material to make something that looks pretty cool as well as innovative. I see this as a fascinating ...
Intelligent clothing inspired by pine cones
...said Veronika, who has experience of designing for both
the high street and London Fashion Week, and has been working on the project part-time for three years. "It's up to me to work with the new material to make something that looks pretty cool as well as innovative. I see this as a fascinating interface...
Head lice reveal contact between modern and ancient humans
... comprises two evolutionary lineages-one contains both
head and body forms and has a worldwide distribution; the other contains only the head louse and is restricted to the New World. However, their analyses also provide evidence that P. humanus must have originated long before its H. sapiens host an...
Annals of Internal Medicine tip sheet for Oct. 5, 2004
...ug. Researchers call for better education of both
travelers and health care providers and identify sources and resources where both
groups can get up-to-date and accurate information. 3. Eating Lots of Unsaturated Fats Lower...
Good news: As you age, leg blood vessels adapt so you can still exercise without fainting
... Blood vessels in our leg muscles must respond to both
dilating and constricting substances to meet the c...compared the blood vessel reactions in the legs of both
age groups. Editors note: Proctor is speaking at the American Physiological Society's 2004 Inte...
University of Oregon professor wins 2004 Spiers Medal
...ique called second harmonic generation, developing both
the experimental methodology and a theoretical framework for interpreting the second harmonic response. After completing her doctorate with George Pimentel at the University of California at Berkeley, Richmond spent five years as a junior facul...
September/October 2004 Annals of Family Medicine tip sheet
...us illness, hospitalization, birth or death. When both
are present, patients place a great deal of value ...uestion screening tool are equally comfortable for both
patients and physicians. Both tools also are equal in their ability to engage the patient in discuss...
Most promising clinical uses for stem cells from fat agreed on by international society
...e donated by other individuals. Because adipose is both
abundantly available and easily accessible, it offers a practical source of stem cells. A key question the group answered was simply what to call the cells, with the decision in favor of the term adipose-derived stem cells, even though it also was...
NIH awards Emory and Georgia Tech $10 million for partnerships in cancer nanotechnology
...'s accomplishments are a great source of pride for both
the Georgia Cancer Coalition and the state of Geor...a new class of bioconjugated quantum dots that can both
image and target single-molecule processes in single living cells," said Dr. Nie. "Quantum dots hav...
Marine Biological Laboratory summer investigator wins Nobel Prize in Chemistry
...hko is studying that ubiquitin ligating complex in both
clam eggs and cultured human cells in hopes of learning even more about cell division in general and cancer more specifically. "Changes in the mechanisms that control the activity of this complex lead to chromosome instability, and ultimately t...
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