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Tag: "fewer" at biology news

Life's origins were easier than was thought

...sufficient. But in riboorganisms there can be much fewer genes, since DNA genomes include a number of genes that have the role of making the RNA translation system (which enables proteins to be produced) work, which would not be required in RNA-based organism. ...

Forsyth scientists find three bacteria associated with oral cancer

...cases are not diagnosed until the later stages and fewer than 54 per cent of individuals diagnosed in those stages live for five years¡Xplacing OSCC among the deadliest of cancers. "Far too many people are not diagnosed until their oral cancer is in its advanced stages," Mager said. In part, that is becau...

Surgical Robot 'Scrubs In' At UNC, May Be More Precise Than Conventional Surgery

...se of pain medications after robotic surgery, with fewer complications," said Dr. John F. Boggess, gynecological oncologist, assistant professor of obstetrics and gynecology at UNC's School of Medicine and a member of the UNC Lineberger Comprehensive Cancer Center. Boggess is the first physician statewide...

Screen all at risk for HIV, plus pregnant women

...se of pain medications after robotic surgery, with fewer complications," said Dr. John F. Boggess, gynecological oncologist, assistant professor of obstetrics and gynecology at UNC's School of Medicine and a member of the UNC Lineberger Comprehensive Cancer Center. Boggess is the first physician statewide...

FDA: 'Highly Unlikely' Green Tea Lowers Cancer Risk

...se of pain medications after robotic surgery, with fewer complications," said Dr. John F. Boggess, gynecological oncologist, assistant professor of obstetrics and gynecology at UNC's School of Medicine and a member of the UNC Lineberger Comprehensive Cancer Center. Boggess is the first physician statewide...

Most embryos produced during IVF do not result in live births

...l. But addressing the growing pressure to transfer fewer embryos to reduce multiple births is a difficult task unless they can come up with a method in the lab to identify the best embryos. "Some potential methods for screening embryos include using pre-implantation genetic diagnosis and biochemical marke...

Researchers find ways to turn manure into power

...e switch to crops which use less water and require fewer nutrients. "Things are in reasonable shape now, but in 10, 20 or 30 years from now, we need to have alternate uses that are not based exclusively on land application," he said. Energy production has been researched for more than 20 years, but "$60 ...

Newly recognized gene mutation may reduce seeds, resurrect plants

...y be able to increase yield by helping plants shed fewer seeds, grains or fruits, especially under drought conditions and in other stressful environments. ...

Biologist Discovers What May Be World’s ‘Pickiest?Mates

...ey took less time, she noted, because they entered fewer burrows, primarily because many of the burrows they passed were too small to accommodate them and successfully incubate their eggs and release their larvae. “Larvae were successfully released during high-amplitude nocturnal tides only when females i...

Chernobyl: The true scale of the accident

...cientists has concluded. As of mid-2005, however, fewer than 50 deaths had been directly attributed to radiation from the disaster, almost all being highly exposed rescue workers, many who died within months of the accident but others who died as late as 2004. The new numbers are presented in a landmark ...

Grabbing addiction by the tail

... it could, whether the addicted rats would exhibit fewer signs of behavioral sensitization. Wang's research has made significant progress toward answering these questions. The researchers began by building a peptide ?a long molecule made from a string of amino acids ?with a structure similar to the tail o...

The earliest animals had human-like genes

... "Classically-studied species like flies have far fewer introns, so many scientists have believed that genes have become more complex over the course of evolution. There have already been speculations that this may not be true, but proof was missing. Now we have direct evidence that genes were already qui...

Embryonic stem cells accrue genetic changes

...aled that five of the nine cell lines had extra or fewer copies of at least one section of their genetic material in the late batch compared to the same cell line's early batch. Two of the nine lines had changes in their mitochondrial DNA over time, and all nine stem cell lines exhibited some shift in meth...

Reducing antibiotic use lowers rates of drug-resistant bacteria

Fewer antibiotic prescriptions leads to fewer "superbugs." That's the take-home message behind a new study in the Oct. 15 issue of Clinical Infectious Diseases, now available online. The study found that reducing antibiotic use for pediatric respiratory tract infections resulted in lower rates o...

Center releases new public survey on stem cells

...upport for the current Bush administration policy; fewer still (16 percent), would ban embryonic stem cell research altogether. A majority favored relaxing embryonic stem cell restrictions, including 40 percent who would support federal funding for both the creation of new embryonic stem cell lines and fu...

Why Christmas trees are not extinct

...om line is that conifers have shorter conduits and fewer valves, both of which would increase resistance to water flow, "but they compensate for that because each individual valve is so much more efficient," Sperry says. "The flow resistance through a valve of a given size is 59 times lower in a Christmas ...

2005 AIDS figures released by WHO and UNAIDS

...e of condoms, delay of first sexual experience and fewer sexual partners—have played a key part in these declines. The new UN report also indicates, however, that overall trends in HIV transmission are still increasing, and that far greater HIV prevention efforts are needed to slow the epidemic. Kenya, Zi...

Earliest European Farmers Left Little Genetic Mark On Modern Europe

...e of condoms, delay of first sexual experience and fewer sexual partners—have played a key part in these declines. The new UN report also indicates, however, that overall trends in HIV transmission are still increasing, and that far greater HIV prevention efforts are needed to slow the epidemic. Kenya, Zi...

Free-energy theory borne out in large-scale protein folding

... While scientists know proteins containing 100 or fewer amino acids fold in a very cooperative (all-or-none) fashion, it is believed that larger proteins fold through the formation of partially folded intermediate structures before settling into their final state. Simulating large-scale protein folding i...

Is it Possible to Change Prescribing Habits?

...y in direct costs. However, despite the potential, fewer than 10% of hospitals have implemented such systems. Less is known about the value of such systems in an outpatient setting. Now, Andrew Steele and colleagues from Denver have tested a computerized physician order entry (CPOE) system in a US hospita...

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