rate 2 5

Tag: "rate" at biology news

2,000 influenza virus genomes now completed and publicly accessible

...ing sequencing capacity has enabled the production rate to increase to more than 200 viral genomes per month. Eclipsing today’s milestone of 2,000 genomes, the microbial sequencing center will continue to rapidly sequence more influenza strains and isolates and will make all the sequence data freely avail...

Research to spotlight carbon monoxide benefits

...ke tuneable compounds which allow you to alter the rate at which carbon monoxide is released, which could be important in different bioapplications. "We are adopting a complementary approach to the design of these molecules using the natural interface between organic and inorganic chemistry." The pr...

Circumcision: A proven strategy to prevent HIV

...ut meanwhile more people are getting infected at a rate of approximately 5,000 persons per day," said Bailey. "We cannot treat our way out of this epidemic. Prevention of new infections is crucial." Simulation models estimate that millions of new HIV infections, tens of thousands of deaths, and several...

Protein may hold key to decreasing organ dysfunction rates in heart transplants

...s inflammatory response and increasing the success rate of heart transplants worldwide. The study appears in American Journal of Transplantation. Building on earlier work, the study finds that Lcn-2 is released by inflammatory cells attacking transplanted hearts in mice, and suggests that the protein is ...

Protein found that slows hepatitis C growth in liver cells

...g the researchers?discovery that PAK1 controls the rate at which hepatitis C virus replicates, the paper describes the biochemical pathways that lead to PAK1 activation and the specific mechanisms by which PAK1 interferes with the ability of hepatitis C to hijack liver cells and make more copies of itself...

How T lymphocytes attack

...tumour, T cells "patrolled" at a consistently high rate (approximately 10 micrometres per minute), at all ...res per minute) and halted frequently. Their mean rate reached a plateau at 4 micrometres per minute. Then, during later stages when the tumour was regres...

Satellites shed light on global warming

...uence on climate. Because any increase in the melt rate of ice sheets and glaciers has the potential to gr...able way researchers know of measuring the precise rate at which global temperatures are increasing and improves the accuracy of our climate change models a...

Turning a cellular sentinel into a cancer killer

...ti-tumor effect." For one thing, the high mutation rate in cancers might enable a cancer to switch the p53 pathway back off, or to circumvent the pathway in some other fashion. For those reasons, researchers were not sure whether the pathway would be a useful therapeutic target. To reactivate p53, Lowe ...

'Hidden-hero' microbes in soil, water may help naturally clean toxic sites

...e partners will develop models to help predict the rate at which contamination levels drop when using natural methods such as bioremediation and artificial techniques such as chemical additions and pH adjustments. Subsurface changes are monitored using geophysical methods that send acoustic, electric and ...

Syphilis rate on rise in US gay, bisexual men

...philis rates fell by a whopping 90 percent, from a rate of 20.3 cases per 100,000 people to 2.1 cases per ...ne as the decade went by. However, the syphilis rate rose by 19 percent between 2000 and 2003. During that period, the rates among women continued to ...

New test helps identify hepatitis C patients at high risk of developing cirrhosis

...s multiple side effects and a suboptimal response rate for most patients," said Cheung. Treatment includes weekly injections of alpha interferon along with the drug ribavirin, which can cost more than $30,000 per year and can cause flu-like symptoms, nausea, depression and other side effects. And onl...

Virtual duck bills demonstrate species coexistence

...ever Gurd found that avoiding detritus reduces the rate at which ducks can filter water. "It is this trade-off between avoiding detritus and foraging rate that allows ducks to partition resources" said Gurd. "Ducks with long lamellae are more efficient at...

Does a peptide affect the heart's response to social isolation?

...cluding elevated resting heart rate, reduced heart rate variability, and reduced parasympathetic regulatio...period. Electrocardiographic parameters (heart rate and heart rhythms) were recorded using the radio frequency transmitter. Following the period of isol...

Novel laboratory technique nudges genes into activity

...e was activated, ultimately resulting in a reduced rate of growth in the cancer cells. Dr. Corey said that while it’s clear the activating effects of the new technique are occurring at the chromosome level, and not at the messenger RNA level, more research is needed to understand the exact mechanism. ...

Does evolution select for faster evolvers?

... Deem and Park's model shows how HGT increases the rate of evolution by propagating favorable mutations across populations. Deem described the importance of horizontal gene transfer in the work in a January 2007 cover story in the Physics Today, showing how HGT compliments the modular nature of genetic...

Breathing easy: When it comes to oxygen, a bug's life is full of it

...rvive for hours or days. They have a low metabolic rate and can close their spiracles. If you compare Lance Armstrong, the bee and the hummingbird, the bee is the champion of oxygen delivery,?he said. But at the same time, insects can survive low levels of oxygen for a comparatively long time. Research...

HIV dementia alarmingly high in Africa

...ional study led by Johns Hopkins suggests that the rate of HIV-associated dementia is so high in sub-Sahar...-Saharan Africa, according to Sacktor. "If the rate we saw in our study translates across sub-Saharan Africa, we’re looking at more than 8,000,000 peopl...

Light wine intake is associated with longer life expectancy in men

...han one glass per day) was associated with a lower rate of cardiovascular death and death from all causes....er day, over a long period, had a 40 percent lower rate of all-cause death and a 48 percent lower incidence of cardiovascular death, compared to the non-win...

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

... in dense huddles and drop their average metabolic rate by 25 percent has questioned whether this drop is ...ests that emperor penguins depress their metabolic rate by 50 percent during half of the time when they are in dense huddles. Metabolic Rate in Dense Hu...

A potential biological cause for sudden infant death syndrome

... Indian infants in the Northern Plains, whose SIDS rate is among the highest in the world. The current study confirms those findings in a third population and, for the first time, pinpoints multiple defects in the serotonin system other than those in serotonin receptors: deficiencies in a particular type ...

1 2 3 4 5 6 7 8 9 10