Population Dynamics Current Events | Population Dynamics News | 6
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Partners can help or hinder attempts at changing diet
For people trying to make a change in their diet, significant others generally play a positive and supportive role, but sometimes respond in negative ways, according to a study in the March/April Journal of Nutrition Education and Behavior (http://www.jneb.org/). view more (2008-03-26)
Most people brush their teeth wrongly
More than two out of three people who say they brush their teeth twice a day have substantial deposits of plaque in their mouths, probably because they are brushing incorrectly, a government survey reveals today (Thursday, 23 March). One of the experts who took part in the national study, Dr Jimmy Steele, of Newcastle University Dental School,... view more... (2000-03-22)
Does natural selection drive the evolution of cancer?
The dynamics of evolution are fully in play within the environment of a tumor, just as they are in forests and meadows, oceans and streams. This is the view of researchers in an emerging cross-disciplinary field that brings the thinking of ecologists and evolutionary biologists to bear on cancer biology. view more (2006-11-20)
Are existing large-scale simulations of water dynamics wrong?
Soils are complicated porous media that are highly relevant for the sustainable use of water resources. view more (2008-03-11)
Symbiotic fungi promote invasion into diverse plant communities (Rudgers et al.)
Populations of several European passerines that winter south of the Sahara have undergone a marked decline. The causes of negative population trends are largely unknown, but ecological conditions during winter in Africa may have carry-over effects during northward spring migration and reproduction. In the January issue of Ecology Letters, Saino,... view more... (2003-12-10)
Dynamical theory and novel 4-D colorimetric method reveal modus operandi of intact living brain
For the brain to achieve its intricate functions such as perception, action, attention and decision making, neural regions have to work together yet still retain their specialized roles. view more (2009-01-22)
Proteomics: Finding the key ingredients of disease
The winner of the chilli cook-off, usually has a key secret ingredient, which is hard to identify. Similarly, many diseases have crucial proteins, which change the dynamics of cells from benign to deadly. view more (2009-05-20)
Computer simulations point to key molecular basis of cystic fibrosis
Researchers from the University of North Carolina at Chapel Hill have identified a key molecular mechanism that may account for the development of cystic fibrosis, which about 1 in 3000 children are born with in the US every year. view more (2008-03-03)
Fighting for their attention
Mating strategies are straightforward in bottlenose dolphins, or are they? Much of the work carried on male-female relationships in that species to date show that males tend to coerce females who are left with little choice about with whom to mate. view more (2007-04-04)
Social parasites of the smaller kind
Cooperation is widespread in the natural world but so too are cheats - mutants that do not contribute to the collective good but simply reap the benefits of others' cooperative efforts. view more (2007-08-27)
Climate change isolates Rocky Mountain butterflies
Expanding forests in the Canadian Rocky Mountains are slowly isolating groups of alpine butterflies from each other, which may lead to the extinction of the colourful insects in some areas, says a new study from the University of Alberta. view more (2007-08-14)
The future of tropical forests
Deforestation and habitat loss are expected to lead to an extinction crisis among tropical forest species. Humans in rural settings contribute most to deforestation of extant tropical forests. view more (2006-04-07)
Disease-impact models may rely on incorrect assumptions
Even when we know how a disease affects individual animals, it is challenging to predict what impact it will have on the whole population, and yet predicting how disease affects a population is a primary concern for wildlife conservation and even public health. view more (2006-04-13)
Climate change could trigger 'boom and bust' population cycles leading to extinction
Climate change could trigger "boom and bust" population cycles that make animal species more vulnerable to extinction. , according to Christopher C. Wilmers, an assistant professor of environmental studies at the University of California, Santa Cruz. view more (2007-04-17)
Scientists use seismic waves to locate missing rock under Tibet
Geologists at the University of Illinois at Urbana-Champaign have located a huge chunk of Earth's lithosphere that went missing 15 million years ago. By finding the massive block of errant rock beneath Tibet, the researchers are helping solve a long-standing mystery, and clarifying how continents behave when they collide. view more (2007-02-08)
tTGA: Is it more essential in diagnosis of gluten sensitive enteropathy?
CD is a highly prevalent disease (1:100 to 1:300) which fulfils most of the criteria favoring mass screening. Despite this, screening for gluten sensitive enteropathy (GSE) is still controversial due to its dubious benefits and the acceptance of a gluten-free diet (GFD). view more (2009-03-24)
Spotted hyenas can increase survival rates by hunting alone
Recent research by Michigan State University doctoral student Jennifer Smith has shed new light on the way spotted hyenas live together and - more importantly - hunt for their food alone. view more (2008-07-17)
Modus operandi: how satellites track a mass killer
A global mass killer could be tamed with the aid of satellite technology. Scientists are using data from Meteosat to help model and predict outbreaks of malaria. "Satellite sensor data hold out hope for the development of early-warning systems for diseases such as malaria, which kills between 1 and 2 million people each year," says David Rogers,... view more... (2002-02-20)
New earth observation centres announced
Two new centres which will use satellites and models to help forecast earthquakes and the effects of carbon in climate change were announced (Wednesday 17 October) by Lord Sainsbury, Science & Innovation Minister. Said Lord Sainsbury, " I am delighted to announce that the Natural Environment Research Council is establishing two new... view more... (2001-10-19)
Venus Express' infrared camera goes filming
An exciting new series of videos from ESA's Venus Express has been capturing atmospheric details of day and night areas simultaneously, at different altitudes. view more (2007-05-08)
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