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Tag: "historical" at biology news

The secret lives of whales

...netics is opening the door to a huge storehouse of historical information about whales,?says Steve Palumbi of Stanford University. Palumbi has applied new genetic techniques to penetrate over a million years of whale history dating back to the middle of the last series of Ice Ages. Using whale samples from the...

Affymetrix and the Karolinska Institutet Announce Translational Medicine Strategic Alliance

... All statements in this press release that are not historical are "forward-looking statements" within the meaning of Section 21E of the Securities Exchange Act as amended, including statements regarding Affymetrix' "expectations," "beliefs," "hopes," "intentions," "strategies" or the like. Such statements are s...

US life expectancy about to decline, researchers say

...ly. Most forecasts of life expectancy are based on historical trends, but the authors conclude that such estimates fail to consider the obesity epidemic. Olshansky and colleagues argue that current extrapolation models used to predict life expectancy do not take into consideration the health status of people c...

Different microarray systems more alike than previously thought

...careful analysis, it should be possible to compare historical data to future experiments, even if the technology changes or people make different choices in their platform." When the study began roughly two years ago, microarray platforms were an exciting technology in the medical and biological sciences, but ...

Undesirable expatriates: Preventing the spread of invasive animals

...udy on larger vertebrates because there are better historical records about their introductions, which were often done purposefully for human use." While motivations vary-- some animals make great pets, others have valuable pelts-- humans have been moving animals between Europe and North America for hundreds o...

Secret of smallpox's success may lead to bioterror cure

...een clues to this property of the virus present in historical results from using vaccinia, or cowpox, to immunize against smallpox. In most people, exposure to vaccinia generally only causes a mild infection in humans before the immune system responds and eliminates the virus, also leaving immunity to smallpox ...

The biggest family tree ever

...ional genealogical methods. In contrast to written historical records that can be lost or oral histories that can fall into disuse, the information stored in people's genes persists. Cusanovich had his own DNA analyzed, which helped him trace his family to a time "when the crusaders were rolling through the Mi...

Tsunami-damaged coral reefs should be left to recover naturally, say scientists

... in an advisory brief for the World Bank, point to historical records of major coral reef devastation by cyclones and typhoons, which show that reefs recovered without human intervention. Although the devastation caused by the tsunami was on a much larger scale, the scientists say there is no evidence to sugge...

International Team Determines Geographic Origin of Leprosy

...s week's issue of Science. The findings enrich the historical understanding of leprosy's global migration and contradict a commonly held view that leprosy spread to West Africa directly from East Africa, say the researchers. The international team of investigators, who identified rare genetic variations among ...

Space matters: Estimating species diversity in the fossil record

...ies have been classified and described. Estimating historical biodiversity from the fossil record is an even mor...fossil record. Taking this into account will alter historical estimates of species distributions and extinction. Barnosky et al. used mapping and imaging systems...

New partnership to clear landmines for African Elephants

...n Botswana cannot re-establish themselves in their historical foraging areas in Angola and Zambia because of the landmines that create a manmade barrier separating the Chobe region from the upper Cuando and Zambezi Rivers. The ranging area of these elephants within the proposed multi-country Kavango Zambezi Tra...

Oceans turning to acid from rise in CO2

...ected from the ocean's surface, the geological and historical record, ocean circulation models, and what's known about ocean chemistry," continued Caldeira. "What we can't predict is just what acidic oceans mean to ocean ecology and to Earth's climate. International and governmental bodies must focus on this ar...

Researcher says flu responders can learn from 1918 epidemic

...through old coroner's reports, newspaper accounts, historical archives, hospital record and military files to piece together an accurate historical portrayal of the outbreak and spread of the 1918 flu. Higgins also cold-called nursing homes in the ...

Restaurant seafood prices since 1850s help plot marine harvests through history

...t time anyone has tried to work with this trove of historical information." The History of Marine Animal Popula...ve undergone. Extensive and previously unexplored historical and environmental archives provide valuable information and insight into the sometimes startling cha...

Fresh water affected by salt from deicing roads

...tional Academy of Sciences. The scientists used historical records over the last 30 years and direct measurements to quantify changes in baseline salinity and predict what would happen if trends of urbanization and deicer use continue. By accumulating in groundwater and aquifers, some water in the northeast...

Russian 'surrogate' alcohols are a killer

...research upon," he said. "This is consistent with historical lessons which show that substance abuse is often widespread during periods of rapid transition, such as the industrial revolution." Shkolnikov concurs. "When thinking about the Russian health crisis, one should not overlook certain societal forces ...

Clinical trial to test stem cell approach for children with brain injury

...e procedure to see if it is improved compared with historical data on the brain function of children of similar age who suffered a similar injury. Safety trials involve too few patients to draw broad conclusions about the effectiveness of treatment. But they can set the stage for larger-scale research. "All ...

Scientists narrow the time limits for the human and chimpanzee split

...sh how fast genes mutate in humans and to date the historical spread of our species around the globe." Kumar was assisted at Arizona State by Research Associate Alan Filipski and graduate student Vinod Swarna. The scientists estimated the time of divergence between species by studying the sequential arrangeme...

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...ries. "We wanted to find out what they fed on in historical times and what they feed on now," Chamberlain says...ds that died in the wild between 1993 and 2001; 60 historical birds that lived from 1797 to 1965; and 10 ancient condors that died in the Rancho La Brea tar pits ...

Serious adverse reactions to smallpox vaccine appear to be limited

... cardiac events that were not anticipated based on historical data. Two cases of generalized vaccinia (a skin eruption in reaction to vaccination) and 1 case of postvaccinial encephalitis (inflammation of the brain) were detected. No preventable life-threatening adverse reactions, contact transmissions, or adve...

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