Tag: "such" at biology news
A 'private bandwidth' for communication in bats: Evidence from insular horseshoe bats
...ferent frequency values. It has been proposed that such
differences are large enough to allow recognition of conspecifics. The study proved that in Sardinia, Mediterranean (Rhinolophus euryale) and lesser (R.. hipposideros) horseshoe bats show divergence in call frequency, spacing them out more than th...
American Chemical Society's Weekly PressPac -- Aug. 8, 2007
...other disease-causing bacteria. Existing methods, such
as electronic noses and electronic tongues, requir...r pollutants. As farfetched as that idea may seem, such
devices are inching closer to reality, according to an article ( http://pubs.acs.org/cen/business/85...
Saudi Arabia's KAUST names WHOI first research partner
...h program begins now with collaborative projects such
as the WHOI initiative announced this summer. Th...conomic effects of alternative fisheries policies, such
a model provides support for resource managers. The proposed coastal hydrography and circulation ...
Multinational research: protecting ecology means understanding people, too
... program seeks ways to cross traditional barriers, such
as when scientists in different disciplines need to know what researchers in companion fields are studying, according to the science foundation. In bridging gaps between different fields of study, the science foundation notes, students also are bett...
Climate change isolates Rocky Mountain butterflies
...nt practice is led by the needs of larger species, such
as mountain sheep, elk and grizzly bears, while the interests of the smaller species, such
as butterflies, are overlooked," he said. Prescribed burns, which protect and create meadows and ...
Beyond batteries: Storing power in a sheet of paper
... paper also could be molded into different shapes, such
as a car door, which would enable important new en...ttery device. Its a way to power a small device such
as a pacemaker without introducing any harsh chemicals such
as the kind that are typically found in...
New study warns limited carbon market puts 20 percent of tropical forest at risk
...y essential natural benefits for local populations such
as clean water, food, medicines and natural resources. CI believes any carbon credit mechanism should include full representation, participation and consultation by indigenous and local communities of tropical forest regions to ensure that conserva...
Unravelling new complexity in the genome
...ding genes as significantly less complex organisms such
as the minute nematode worm Caenorhabditis elegans...have implications for understanding human diseases such
as cancers, since we can anticipate a more extensive role for altered regulation of splicing events ...
Pollution causes 40 percent of deaths worldwide, study finds
... makes millions of people much more susceptible to such
killers as acute respiratory infections, malaria a...equate sanitation, and are exposed to epidemics of such
diseases as measles and flu. With 1.2 billion people lacking clean water, waterborne infections ...
Which came first, the moth or the cactus?
... a fundamental rethinking of ecological theory for such
mutualistic interactions. "I develop theoretical...ly happens," Holland said. Traditional theory of such
mutualistic interactions leads to predictions of unbounded population growth or instability and even...
Interaction of just 2 genes governs coloration patterns in mice
...ns, and hawks." Previous research has shown that such
predators, all of which hunt by sight, will preferentially catch darker mice on the white sand beaches, providing a powerful opportunity for natural selection to evolve increased camouflage. Through a detailed genomic analysis, Hoekstra, Steiner, a...
Features of replication suggest viruses have common themes, vulnerabilities
...ncluding those that cause important human diseases such
as AIDS, SARS and hepatitis C - have features in c...e transcribing viruses, which include retroviruses such
as HIV, suggesting a possible evolutionary link from a common ancestor. ...
Newly created cancer stem cells could aid breast cancer research
...ab of Whitehead Member Robert Weinberg has created such
cells in a Petri dish by isolating and transforming a particular population of cells from human breast tissue. After being injected with just 100 of these transformed cells, mice developed tumors that metastasized (spread to distant tissues). The o...
Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
...e shown populations in which it is often consumed, such
as the Chinese and Japanese, generally have lower rates of cancer. To find out if green tea can protect against cancer, the NCI has sponsored a number of rigorous scientific studies testing capsules of the extract, Polyphenon E, that have been prepar...
High blood pressure, low energy -- a recipe for heart failure
... drugs that would rev up energy-producing pathways such
as those controlled by ERR alpha, according to Kelly. Kelly is also director of the Center for Cardiovascular Research and professor of medicine, of pediatrics and of molecular biology and pharmacology. ERR alpha sits in the nucleus of cells and sen...
Circadian clock controls plant growth hormone
...n time their growth to take advantage of resources such
as light and water, and suggests that many other processes may be influenced by circadian rhythms. Auxin tells shoots to grow away from the ground and toward light and water. Charles Darwin conducted early experiments that showed how auxin affects ...
Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
...es. Type 2 diabetes is caused by external factors such
as diet and exercise, and is influenced by several genes. While most of the genes known to be involved in diabetes susceptibility are located in the nuclear genome, a recent study estimated that more than 20% of type 2 diabetes cases may involve mut...
New textbook illuminates the close links between evolutionary and molecular biology
... another. But with recent breakthroughs in fields such
as genomics, developmental biology, human genetics...ogical backgrounds, illustrate how basic processes such
as natural selection, optimization, and conflict occur at the molecular level as well as the organis...
Swarming starlings help probe plasma, crowds and stock market
...imited by the small number of satellites observing such
things and plasmas in nuclear fusion reactions are...ere particularly interested in how complex systems such
as plasma, crowds of people, or flocks of birds suddenly move from a disordered random state to an ...
ESF EURYI award winner aims to stop cancer cells reading their own DNA
...an traditional chemotherapy, avoiding side effects such
as temporary hair loss. Dekker is focusing on an enzyme called Topoisomerase IB that plays a key role in some of the molecular motors involved in the processes of DNA and RNA copying during cell division. These are responsible for reading the geneti...
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