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Tag: "average" at biology news

World-wide warning of highly drug-resistant tuberculosis

...d were HIV positive and 52 of the 53 died after an average of 25 days. Strains of extensively drug resistant tuberculosis have also been noted in Europe, Asia and North and South America. It appears that there are several strains of this tuberculosis. Author Dr Stephen Lawn, senior lecturer in infectious...

A natural chemical found in strawberries boosts memory in healthy mice

...nd over suffer from memory and recall woes. As the average age of the U.S. population climbs, the number of people ravaged by Alzheimer's disease and other forms of dementia continues to rise. "Since the development of a basic understanding of the biochemical pathways involved in memory formation, the holy...

First-time analysis reveals millions of Europeans left at risk from influenza

...4% in the UK to 41.6% in Cyprus. There were on average of 174 vaccine doses distributed per 1000 population within the EU-25, which leads to an average vaccination rate of the target population of 35.4% based on current supply constraints As a cons...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...briety, and they found that it had increased by an average of nearly two per cent during this time. In additi...hs, we found that brain volume had increased by an average of nearly two per cent (1.82%), with a range of -0.19 to 4.32%. Only the one patient with the longes...

Dinosaurs -- stones did not help with digestion

...ments. The mass of the stones then corresponded on average to one per cent of the body mass of the birds. 'Whereas occasionally stones were found together with sauropod skeletons, we don't think they are remains of a gastric mill such as occurs in birds,' Dr. Sander comments. In that kind of gastric mill ...

High hourly air pollution levels more than double stroke risk

... cardiovascular problems tends to be linked to the average daily amount of air pollution, rather than variati...rain. The findings held true, irrespective of the average daily level of air pollutants. No such effect was found for ischaemic stroke, where the arteries in...

Wolves are suffering less from inbreeding than expected

...n inbreeding coefficient of 25%. This is about the average level for the present wolf population in Scandinavia. And our analyses have shown that inbreeding is negative, inbred wolves produce less number of pups, says Staffan Bensch, one of the spokespersons of the research team.. The inbreeding coefficien...

For super-obese patients, duodenal switch beats gastric bypass

...e than 80 percent of both groups were female. The average age was 40, but that ranged from 18 to 68. About ...enal-switch patients were slightly heavier. Their average weight before surgery was 368 pounds, compared to 346 for gastric-bypass patients. Average BMIs wer...

New biologic treatment for tennis elbow may replace surgery for chronic sufferers

...15 patients had tennis elbow for 15 months and the average patient age was 48 years. Their baseline score on...ration of symptoms in this group was 12 months and average patient age was 42 years. Their baseline score on the pain scale was 86. Twenty-four hours post-t...

Ecstasy can harm the brains of first-time users

...st-time ecstasy users who had taken six tablets on average and 56 non-users were re-examined with the same techniques and tests. The study found that low doses of ecstasy did not severely damage the serotonergic neurons or affect mood. However, there were indications of subtle changes in cell architectur...

'Mindless autopilot' drives people to underestimate food decisions

... many decisions they make about food each day, the average response was 15. However, when the volunteers then...nd that the staffers and students actually made an average of 221 food-related decisions each day. The study is published in the January issue of Environment...

Halving daily cigarette quota has no health benefit

... an interval of three to 10 years, adding up to an average monitoring period of over two decades. Participants were classified as never smokers; ex smokers, quitters (those who gave up between the first and second check); moderate smokers (1 to 14 cigarettes daily); reducers (more than 15 cigarettes a day...

Increase in carbon dioxide emissions accelerating

...ts emissions per person are still below the global average and its accumulated contribution since the start of the industrial revolution around 1800 is only five per cent of the global total. This compares to the US and Europe which have each contributed more than 25 per cent of accumulated global emissions....

Study shows interruption of antiretroviral therapy increases risk of disease and death

... the continuous therapy group—were followed for an average of 16 months. Episodic therapy involved only using antiretroviral therapy when the CD4+ count decreased to less than 250 per cubic millimeter and then stopping therapy when the CD4+ count increased to more than 350 per cubic millimeter. The primary e...

Solvent exposure linked to birth defects in babies of male painters

...nths before their partners became pregnant were on average six times more likely than the carpenters to father congenitally malformed babies (e.g. defects of cardiovascular, gastrointestinal, urogenital and central nervous systems.) In addition, the painters exposed to the chemicals were 50 to 100 per cen...

AIDS study challenges conventional treatment guidelines for HIV patients

...ease. This approach is based on comparisons of the average rate of CD4 cell loss among groups of patients with roughly similar viral loads, which indicate that generally speaking, patients with higher viral loads will tend to experience more rapid CD4 cell loss than patients with lower viral loads. Until now...

Beauty and the brain

...A stimulus becomes attractive if it falls into the average of what you've seen and is therefore simple for your brain to process. In our experiments, we show that we can make an arbitrary pattern likeable just by preparing the mind to recognize it quickly." The research follows up on earlier studies estab...

Targeted virus compels cancer cells to eat themselves

...ters, while those receiving the other virus had an average tumor volume of 200 cubic millimeters. Among mi...those treated with three injections of hTERT-Ad on average lived 53 days. Those receiving the control adenoviruses lived on average 29 days. Two of the hTERT-A...

Eat less, weigh more? Enzyme makes lean mice 'susceptible' to dietary fat

...ermates who carry normal copies of the gene but on average weigh 15 percent less when fed a low-fat diet. Further analysis revealed that when deprived of food for four hours prior to feeding with standard laboratory mouse chow, the knockout mutant mice ate about 25 percent less food than their normal siblin...

Adults who go to bed lonely get stress hormone boost next morning

...f its type, the study shows that it is not just on average that people who have more negative emotions have higher levels of cortisol. Rather, with its detailed and intricate methodology, the study shows a sensitive day-to-day dance between experience and cortisol. Experience influences stress hormones, and ...

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