Population Dynamics Current Events | Population Dynamics News | 3
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Measuring and modeling blood flow in malaria
When people have malaria, they are infected with Plasmodium parasites, which enter the body from the saliva of a mosquito, infect cells in the liver, and then spread to red blood cells. view more (2009-11-23)
Risk threshold of daily alcohol intake and drinking duration in liver injury?
Alcoholic threshold effect rather than a dose-response effect on mortality from alcohol-related liver injury. Alcohol intake, rather than the type of alcoholic beverage, was more significant to liver injury. view more (2008-05-21)
Viral marker of human migration suspect
A benign virus previously used as a marker in tracing human migration may be unreliable. view more (2006-10-25)
Metal deformation studies lead to new understanding of materials at extreme conditions
By combining very large-scale molecular dynamics simulations with time-resolved data from laser experiments of shock wave propagation through specific metals, scientists at the Lawrence Livermore National Laboratory are now able to better understand the evolution of high-strain-rate plasticity. view more (2006-09-19)
Seals quickly respond to gain and loss of habitat under climate change
Southern Elephant seals responded rapidly to climate and habitat change and established a new breeding site thousands of kilometres from existing breeding grounds, according to new research. view more (2009-07-10)
First population study of GM mosquitoes highlights difficulties facing malaria control technique
The first laboratory population study of genetically modified mosquitoes identifies issues that need to be faced in the task of turning mosquitoes from disease carriers into disease fighters. Scientists from Imperial College London report in Science today that populations including genetically modified mosquitoes quickly lose their test marker... view more... (2003-02-18)
Why do insects like to eat some plants more than others?
In a study appearing in the forthcoming issue of The American Naturalist, Tom E. X. Miller, Andrew J. Tyre, and Svata M. Louda (all of the University of Nebraska, Lincoln) examined herbivore dynamics, specifically why plants aren't all eaten at the same rate. view more (2006-11-14)
Twins have lower risk of suicide than general population
Twins have a lower risk of suicide compared with the general population, concludes a study in this week’s BMJ. view more (2003-08-12)
Lowly Icelandic midges reveal ecosystem's tipping points
The midges that periodically swarm by the billions from Iceland's Lake Myvatn are a force of nature. view more (2008-03-06)
DNA research flies high with Seychelles kestrel
A new research project at the University of Kent is looking for genetic evidence of a historical population bottleneck in the Seychelles kestrel by analysing DNA extracted from museum specimens estimated to be 100-150 years old. Dr Jim Groombridge, Lecturer in Biodiversity Conservation at the University's Durrell Institute of Conservation and... view more... (2004-06-01)
Gene-bender proteins may sway to DNA
Among the many genes packed into each cell of our body, those that get turned on, or expressed, are the ones that make us who we are. Certain proteins do the job of regulating gene expression by clasping onto key spots of DNA - the nucleic acid that contains the genetic instructions. view more (2006-12-05)
Where there's muck there's grass
The oldest ecological experiment in the world, set up almost 150 years ago to see whether inorganic fertilisers could produce more grass than traditional animal manures, is becoming an important source of evidence on the impact of climate change on genetic variation in plants. Speaking at the British Ecological Society's Annual Meeting, being... view more... (2003-09-01)
Counting sheep in climate change predictions
Climate change can have devastating effects on endangered species, but new mathematical models may be able to aid conservation of a population of bighorn sheep. view more (2009-06-01)
Research advances understanding of how hydrogen fuel is made
Oxygen may be necessary for life, but it sure gets in the way of making hydrogen fuel cheaply and abundantly from a family of enzymes present in many microorganisms. view more (2005-10-06)
Inactivity of proteins behind longer shelf life when freezing
Frozen biological material, for example food, can be kept for a long time without perishing. A study by researchers at the University of Gothenburg, Sweden, is close to providing answers as to why. view more (2009-03-03)
Dry season brings on measles in sub-Saharan Africa
Measles epidemics in Niger fluctuate wildly from one season to another but the timing of the outbreaks always coincides with the end of the annual rainy season, according to an international team of researchers. view more (2008-02-07)
Inside a quantum dot: Tracking electrons at trillionths of a second
Researchers at the EPFL (Ecole Polytechnique Federale de Lausanne) have developed a new machine that can reveal how electrons behave inside a single nano-object. view more (2005-11-28)
Buried coins key to Roman population mystery?
University of Connecticut theoretical biologist Peter Turchin and Stanford University ancient historian Walter Scheidel recently developed a new method to estimate population trends in ancient Rome and waded into an intense, ongoing debate about whether the state's population increased or declined after the first century B.C. view more (2009-10-06)
New tool for helping pediatric heart surgery
A team of researchers at the University of California, San Diego and Stanford University has developed a way to simulate blood flow on the computer to optimize surgical designs. view more (2009-11-24)
Mathematical Model Shows Why Defeating Insurgent Groups Like Taliban is So Difficult
Insurgent groups like the Taliban can only be effectively engaged with timely and accurate military intelligence, and even good intelligence may only succeed in containing the insurgency, not defeating it. view more (2009-07-17)
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