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Tag: "billion" at biology news

New push for public health, AIDS spending at African Union summit

...l, which could open the taps on the promised $US15 billion that President George W Bush promised two years ago for the fight against AIDS. ...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

... occurring ever since the oceans first formed four billion years ago. Conditions below the sea floor may most closely mimic the environment when life began. "There is a great deal of interest in the microbes of the Earth's crust because the strategies by which they survive may be similar to the earliest str...

Novel technology detects human DNA mutations

...ex asit requires sifting through the more than one billion base pairs of DNA to find a particular base pair of interest. Once that base pair is located, it is then necessary to determine if either of the bases is mutated (i.e., has SNPs). Nanosphere's technology can rapidly, easily, and accurately interrogat...

Priming embryonic stem cells to fulfill their promise

...1, ameasure that authorized the state to borrow $3 billion to fund stemcell research over the next 10 years."I'm really excited about the stem cell applications of our newtechnology," said Bhatia. "We feel that this extracellular matrix partof the stem cell niche has been understudied. If we can now take wha...

New Technique for Tracking Gene Regulators

...sheer magnitude of information in the genome:three billion nucleotides, and many tens of thousands genes. Trying toascertain which of these genes CREB regulates by more traditionalmethods, evaluating one gene at a time, would be too labor-intensive,expensive, and take a very long time.Scientists have been wo...

Iron Deficiency Sparks Dramatic Changes In Gene Expression

...ritional disorderworld wide, affecting more than 2 billion people. The most widelyrecognized symptom is anemia, in which too few red blood cells areproduced, and the body is deprived of oxygen needed for energymetabolism. Iron deficiency causes wide-ranging symptoms from fatigue,weakness and cognitive defici...

Learning to fight an adversary that won't stay down

...obes continue to hold the upper hand ?and if three billion years of bacterial history is any kind of track record, we're in for an endless running battle, says Dr. Julian Davies, a microbiologist at the University of British Columbia. "We haven't evolved in our thinking sufficiently to be able to match the ...

Found: Missing sequence of the human Y chromosome

...fort to elucidate the orderand orientation of 2.85 billion basepairs that comprise the humangenome. The high-quality sequence spanned more than 99% of theeuchromatic (gene-containing) portion of the genome with an accuracy of99.999%, but despite this accomplishment, substantial sections ofchromosomal sequenc...

The secret lives of whales

...ver faced. That’s because 70% of all humanity (4.2 billion people) depends on seafood as its primary source of animal protein, and if the fish are seriously polluted, they may soon be unsafe to eat.?/p> Payne reasoned that by taking biopsy samples from whales and analyzing their contaminant loads, he cou...

Color-blind method opens new doors in DNA sequencing

...n's genome consists of a unique ordering of some 3 billion base pairs, and 'DNA sequencing' refers to the process scientists use to read out the order of those nucleotides. In sequencing, scientists first extract DNA from the nuclei of cells and through a painstaking series of bacterial cloning and/or polym...

A bacterial genome reveals new targets to combat infectious disease

More than a billion people are at risk for infection with filarial nematodes, parasites that cause elephantiasis, African river blindness, and other debilitating diseases in more than 150 million people worldwide. The nematodes themselves play host to bacteria that live...

Spider Venom Could Yield Eco-Friendly Insecticides

...ontoxic, and more efficient pesticide. More than a billion pounds of pesticides are sprayed in the U.S. every year. That's four pounds per person. A millionth of a pound can sometimes be deadly. And the chemical toxins that currently end up in the food and water supply pose a serious threat to animals, fish,...

Study shows nanoshells ideal as chemical nanosensors

...hells canenhance chemical sensing by as much as 10 billion times. That makesthem about 10,000 times more effective at Raman scattering thantraditional methods. Whenmolecules and materials scatter light, a small fraction of the lightinteracts in such a way that it allows scientists to determine theirdetailed...

Estrogen-like Component of Plastic Stimulates Growth of Certain Prostate Cancer Cells

...torage containers and water supplypipes. About 2.5 billion pounds of the chemical are produced each year. Inparticular, the study showed that the affected class of prostate cancercell, characterized by mutated receptors for androgens, the malehormone, can proliferate in response to BPA.“The results may have...

UCSD discovery may help extend life of natural pesticide

... for parasitic infections that affect close to two billion people worldwide. "Our previous findings with the roundworm C. elegans strongly suggested that specific sugar structures are likely critical for Bt toxin susceptibility," said Joel Griffitts, the first author on the paper and a former graduate stude...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...stry, a fast-growing sector which generated US$143 billion sales in 2003. Other applications of IBN’s nanoporous nanoparticles involve therapeutic treatments like targeted drug delivery and gene therapy. Nanoparticles of varying size and structure may be created to act as carriers for drugs, genes and prote...

Family trees of ancient bacteria reveal evolutionary moves

...oplasts, the oxygen factory in plant cells. A half billion years ago Cyanobacteria predated more complex orga...Earth's most controversial eras ?approximately 2.1 billion years ago, when cyanobacteria first arose on the Earth. This was a time when the Earth's atmosphere ...

UCLA launches $20 million stem cell institute to investigate HIV, cancer and neurological disorders

... of California voters in November, will provide $3 billion for stem cell research. A state institute is being created in Northern California to allocate funding to stem cell scientists at universities, medical schools and research facilities. Grant applications will be available in May. A 29-member oversight...

Researchers devise way to mass-produce embryonic stem cells

... "In the same amount of time we could grow up to a billion stem cells per milliliter in the bioreactor, compared to tens of millions of cells per milliliter with conventional systems," Yang said. Also, it seems that embryonic stem cells grown by conventional methods are more likely to spontaneously differen...

Molecular models advance the fight against malaria

...ments for a disease that afflicts more than half a billion people worldwide. The scientists developed disease models using yeast and successfully introduced five mutations that make malaria resistant to the anti-malarial drug, atovaquone. The study, featured as the cover story of the April 29 Journal of Bio...

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