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Tag: "records" at biology news

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...iversity Belfast, from 1993 to 2004, analysing the records of patients diagnosed with the three most common skin cancers. They found that men were 30 per cent more likely to suffer from basal cell carcinoma, the most common form of skin cancer, which affected some 1,444 people a year in Northern Ireland ...

Massive herds of animals found to still exist in Southern Sudan

... African elephant database, there were no reliable records of elephants in Sudan. “Although we were telling people that wildlife was still present in Southern Sudan, nobody believed us,” said Maj. Gen. Alfred Akwoch, undersecretary of the Ministry of the Environment, Wildlife Conservation, and Tourism. “T...

Climate change was the cause of Neanderthal extinction in the Iberian Peninsula

...pon climate reconstructions elaborated from marine records and using the experience of Spanish and international research groups on Western Mediterranean paleoceanography. The conclusions point out that Neanderthal populations did suffer fluctuations related to climate changes before the first Homo Sapiens a...

Risk of lymphoma increases with hepatitis C virus infection

...HCV infections. The researchers looked at patient records collected from Veterans Affairs (VA) hospitals across the United States between 1996 and 2004. Researchers selected more than 700,000 records; 146,394 represented patients who were diagnosed with the hepatitis C virus, while 572,293 represented pati...

Rare soft-shell turtle, nesting ground found in Cambodia

...h more than 50 kilograms (110 pounds). Only a few records of the species exist for Laos, and it appears to have disappeared across much of its former range in Vietnam and Thailand. It is currently classified as Endangered on the IUCN Red List of Threatened Species, the same status as tigers and pandas. T...

Paper challenges 1491 Amazonian population theories

... titled "Holocene fire and occupation in Amazonia: records from two lake districts" that appears in a recent issue of Philosophical Transactions of the Royal Society of London B: Biological Sciences. Bush says this paper, and another forthcoming in the journal Frontiers in Ecology and the Environment, have ...

How trees manage water in arid environments

...ond warmest in the continental United States since records began in 1895, according to the National Climatic Data Center. Moderate to extreme drought conditions were evident in about 40 percent of the country. When Constance Brown moved from Arizona to Indiana two years ago, she was struck by a major diff...

Fitness has fallen since the days of Ancient Greece

...ond trireme to halt the massacre. According to the records of Thucydides, this second trireme would have made the journey in about 24 hours, rowing in shifts and eating while they rowed, so the ship could travel non-stop. Says Dr Rossiter: "From these details we can estimate the average sustainable ship ...

How badger culling creates conditions for spread of bovine TB

... years. The authors analysed almost 9,000 trapping records involving 1,859 different badgers between 1990 and 2004. Each time a badger was trapped it was sexed, weighed and samples of blood, sputum, urine and faeces were taken before it was released. They found that TB rates were lowest when there was the le...

Canadian study shows bilingualism has protective effect in delaying onset of dementia by four years

...o answer that question by examining the diagnostic records of 184 patients who came to Baycrest's Sam and Ida Ross Memory Clinic between 2002 and 2005 with cognitive complaints. Of that group, 91 were monolingual and 93 were bilingual. The bilinguals included speakers of 25 different languages, the most prev...

20-year study shows significant rise in childhood obesity, especially among girls

...ing from a greater percentage of the 16 year-olds' records in 2002 and this could be because some of the more overweight teenagers refused to be weighed." Key findings included: In 2002, about a fifth of four-year-olds - 22 per cent of girls and 18 per cent of boys - had a BMI of more than 25, compar...

Researchers find 6,000-year-old fossil evidence

...pepper. "We knew from historic and ethnographic records that people were eating domesticated chili peppers, but this archaeological evidence confirms those findings. It also shows us that chili peppers are one of the oldest domesticated food sources in the Americas and that people in distant areas all ate...

No sex for 40 million years? No problem

...c clones of the mother ?there are no males. Fossil records and molecular data show that bdelloid rotifers have been around for over 40 million years without sexually reproducing, and yet this new study has shown that they have evolved into distinct species. Using a combination of DNA sequencing and jaw m...

Microfossils unravel climate history of tropical Africa

...a surface temperature record. A comparison of both records shows that ocean surface and land temperatures beh...omparing this temperature difference with existing records of continental rainfall variability, lead author Johan Weijers and his colleagues concluded that the...

Hay fever can send work productivity down the drain

...res from 577 people whose medical and prescription records showed a diagnosis of allergic rhinitis. Participants were asked about the severity and type of allergy symptoms they had, and whether or not they had seen a physician for treatment. The researchers placed participant responses into one of three g...

How fish conquered the ocean

...evidenced by their sudden appearance in the fossil records of marine sediments. The basis for this successful radiation is unexplained and has intrigued biologists for many years", says Dr. Finn and adds, "Our paper in PLoS ONE relates to the molecular solutions evolved among the teleost ancestors and provid...

Cryoablation -- A new treatment option for some kidney tumor patients

...r mass is treated. The researchers reviewed the records of the 23 men and 17 women with kidney cancer treated with percutaneous cryoablation at Mayo Clinic between March 12, 2003, and Aug. 4, 2005. They found that this treatment was chosen over RFA for reasons such as larger tumor size, proximity of tumo...

Dinosaur extinction didn't cause the rise of present-day mammals, claim researchers

...e to compile the tree of life from existing fossil records and new molecular analyses. They show that many of the genetic 'ancestors' of the mammals we see around us today existed 85 million years ago, and survived the meteor impact that is thought to have killed the dinosaurs. However, throughout the Cretac...

Huddling and a drop in metabolism allow penguins to survive the South Pole cold

...e first to provide long-term deep body temperature records of unrestrained breeding emperor penguins at their colony. Deep body temperatures of the five free-ranging penguins throughout their breeding cycle were on average 36.7 ± 0.3°C. During the pairing period, deep body temperature decreased progressively...

ASU researchers test antibacterial effects of healing clays

...ifferent trace element chemistry of the interlayer records an older geologic condition, from a time when the antimicrobial property was likely inherited." Crystal structure, the interlayer, the way other materials, metals, ions bind to clays, the absorptive characteristics of clays, all could potentially ...

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