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Tag: "rising" at biology news

A gene's first 'kiss' sets off that affair known as puberty

...SH), directly into the circulation. In turn, these rising levels of LH and FSH cause the testes and ovaries to produce the sex hormones testosterone and estradiol, the culprits responsible for the physical changes and emotional baggage of male and female puberty, respectively. "We now have very good eviden...

Antarctic ice shelf retreats happened before

...hat occurred after a long period of warmth. Whilst rising air temperatures are believed to be the primary ca... of the leaders of the project said, 'We know that rising air temperatures can break up ice shelves but there has been a suspicion for some time that the role...

Computers to be used to find blueprint for new influenza drug

...cement of the grant comes at a time when fears are rising that an influenza outbreak developing from Asian chickens could kill thousands of people. Professor Ian Williams, of the Department of Chemistry, will begin work in April on a project that could help pharmaceutical companies develop a better drug th...

HIV Infection Still On The Rise

Preventive measures are failing to stem the rising rate of HIV infection, warn two senior doctors in ...ial to avoid continuing deterioration in services, rising HIV transmission, and costly consequences for tax payers," they conclude. ...

Africa to take it on chin again with climate change

... 1950. As showers and thunderstorms develop in the rising air above the warming ocean, says Hurrell, they help lead to sinking air and drought in a surrounding ring that includes southern Africa. "In our models, the Indian Ocean shows very clear and dramatic warming into the future, which means more and mo...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

...s that were singing. "These findings suggest that rising levels of UCHL1 may be associated with a reduced risk of neuronal death," says Nottebohm. "This study draws attention to the replaceable neurons of adult brain as a wonderful model system in which to study changes in genomic expression related to lea...

Fragile US vaccine system needs improvement despite dramatic gains in health over past century

...hildhood are manufactured by only one company. The rising cost of vaccines, due partly to compliance with regulations and liability concerns, threatens the widespread availability of vaccines for children. The most recent estimates (2000) of the cost to develop a new vaccine range from $110 million to $802 ...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

...or forced to seek new homes and livelihoods. And a rising number of large, intense dust storms plaguing many...tional experts warn in a new report. Thick storms rising out of the Gobi Desert affect much of China, Korea and Japan and even reduce air quality over North ...

Clear rules needed to govern deep sea bioprospecting: UNU

...ias.unu.edu/binaries2/DeepSeabed_FINAL.pdf), cites rising concern about the absence of clear rules governing access to and the sharing of benefits derived from the "global commons" of the sea beds and about the potential for severe, perhaps permanent damage to these unique and sensitive ecosystems, which in...

A Father’s Day Gift: Free DNA Paternity Testing

...ias.unu.edu/binaries2/DeepSeabed_FINAL.pdf), cites rising concern about the absence of clear rules governing access to and the sharing of benefits derived from the "global commons" of the sea beds and about the potential for severe, perhaps permanent damage to these unique and sensitive ecosystems, which in...

Lactose intolerance linked to ancestral environment

...reases with increasing latitude and increases with rising temperature, and especially with the difficulty in maintaining dairy herds safely and economically. A major challenge in interpreting the data, Sherman noted, was to resolve the puzzle that about 13 lactose-tolerant populations live side-by-side wit...

Human brain is still evolving

... see variants within the human population that are rising in frequency due to positive selection, but haven't gone to completion yet." The researchers first sequenced the two genes in an ethnically diverse selection of about 90 individuals. The researchers also sequenced the genes in the chimpanzee, to det...

Climate change will affect carbon sequestration in oceans, model shows

...n has been suggested as one method to help control rising carbon dioxide levels in the atmosphere and mitigate the effects of global warming. But, because the atmosphere interacts with the oceans, the net uptake of carbon dioxide and the oceans' sequestration capacity could be affected by climate change. "...

How 'Dirt' Could Educate The Immune System And Help Treat Asthma

...n has been suggested as one method to help control rising carbon dioxide levels in the atmosphere and mitigate the effects of global warming. But, because the atmosphere interacts with the oceans, the net uptake of carbon dioxide and the oceans' sequestration capacity could be affected by climate change. "...

Male elephants woo females with precise chemistry

...able in the late teens, with the quantity secreted rising about 15-fold over a 25-year life span. Young males secreted significantly more of the "plus" frontalin than "minus," but the ratios became almost equal as the elephant matured, especially between ages 31 and 43. Musth periods get longer as the mal...

Missing fossil link 'Dallasaurus' found

...us period was a time of hot house temperatures and rising sea levels. "As the earth warmed and the seas rose, small land-dwelling lizards took to the oceans and developed increasing levels of seagoing capabilities, and over 30 million years, eventually evolving into the top predator of their domain before ...

Asleep in the deep: Model helps assess ocean-injection strategy for combating greenhouse effect

...guring out how to keep droplets of the liquid from rising to 300 meters---the approximate depth at which, depending upon temperature and pressure, liquid CO2 becomes a gas. One solution is to make the droplets smaller. "Droplets injected to a depth of 800 meters will rise, but if they are small enough they...

Animal models show that anabolic steroids flip the adolescent brain's switch for aggression

...(APA). Neuroscientists are deeply concerned about rising adolescent abuse of anabolic-androgenic steroids (AASs), given the National Institute on Drug Abuse's estimate that nearly half a million eighth- and 10th-grade students abuse AASs each year. Not only do steroids set kids up for heavier use of stero...

Liver cancer linked to cellular repair pathway

...ple with healthy livers. The cancer's incidence is rising in the United States, with an estimated 17,550 new...osed in 2005 and 15,420 deaths. One reason for the rising rates is the increasing prevalence of obesity, which raises the risk of liver cancer five- to six-fo...

Tiny polyps gorge themselves to survive coral bleaching

... set of tanks, the water was heated, mimicking the rising temperatures leading to a bleaching event. After a month, fragments of the coral were gathered from all of the tanks and put through a series of tests measuring energy reserves, photosynthetic rates and growth rates of the coral. The results showed...

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(Date:12/10/2014)... 2014  Wake Forest Baptist Medical Center today announced plans for ... Funding for this $50 million capital project is part of ... summer. The medical education building will be ... complex, adjacent to 525@vine in Wake Forest Innovation Quarter. Construction ...
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