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Tag: "average" at biology news

Spray-on skin relieves emotional trauma for child burn victims

...ars," Ms Swannell said. Twenty children, with an average age of twelve years were involved in the study. The vast majority of children indicated they enjoyed social outings more when wearing Microskin. Most children could not feel Microskin on their skin. The study also showed that use of the product lea...

Rice scientists make first nanoscale pH meter

...ocedure to produce the device output, achieving an average accuracy of 0.1 pH units. The term "pH" was coined by the Danish chemist Søren Sørensen in 1909 as a convenient way of expressing a solution's acidity. pH ranges from one ?the most acidic ?to 14 ?the most alkaline. ...

Epidemic of unneeded amputations

...cond amputation to the same or opposite limb at an average of 16.2 and 12.3 months, respectively, after the first amputation. In advanced stages of peripheral vascular disease (PVD), common in diabetics, plaque blocks arteries, resulting in rest pain, development of foot ulcers and onset of limb loss. The C...

APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal

...n, but preserves that knowledge in its progeny. On average there are 6,000 T cells circulating in the human body that recognize a given antigen. Another 6,000 recognize a different antigen, etc. The human body is estimated to contain 25-100 million distinct T cell clones, he said. When dendritic cells captu...

Biodiversity key to sustainable biofuel according to University of Minn. researcher's findings

...d of the study allowed researchers to evaluate the average net effects of diversity on resistance to and reco...ng the growing season varied more than twofold and average daily high temperatures ranged from 21.5 C to 24.4 C. Stability was dependent on diversity and root ...

Alaska seal pup diet may hold key to decline of population

Female harbor seal pups whose blubber falls below average levels may be at higher risk of delayed sexual maturation or death, even if they get enough fat in their diets later on, according to a new study sponsored by The American Physiological Society and presented at Experimental Biology 2006. The study f...

Thinner and younger

...anuary, Fontana and colleagues found that after an average of six years on calorie restriction, people's hear...o it makes sense that losing weight might increase average lifespan by lowering the risks of some age-related diseases, such as diabetes and atherosclerosis. B...

Study finds 60 new genes controlled by DNA snippet

...vior of genes. DNA segments that code for proteins average 200 base pairs in length, whereas regulatory sequences typically include just six to 10 base pairs, making them hard to find. As a human embryo develops from a single cell into tens of billions of cells, DNA must be read and copied again and again t...

Big hips, big belly? It's in your genes, Joslin-led study shows

...alth plan between 1965 and 1974, when they were an average of 32.4 years old. The patients had undergone mul...en who developed MS had their first symptoms at an average age of 45 years and an average of 15 years after their blood was collected. The average concentrati...

Epstein-Barr virus may be associated with multiple sclerosis

...alth plan between 1965 and 1974, when they were an average of 32.4 years old. The patients had undergone mul...en who developed MS had their first symptoms at an average age of 45 years and an average of 15 years after their blood was collected. The average concentrati...

One in 14 men having a heart attack drive themselves to hospital

...when they arrived in the casualty department. The average time it took women to get to hospital after the on...erred to the hospital by their family doctor in an average of five hours from the onset of initial symptoms. People who referred themselves took an average ...

For the first time: Longevity modulated without disrupting life-sustaining function

...tress resistance and double their lifespan from an average of 20 to 40 days. Except the worms trade a trim life focused on reproduction for a long life with fewer progeny and a tendency to halt larval development and enter a dormant, hibernation-like stage in which they can hang on for months but don't repro...

Exotic crab poised for widespread UK invasion

...he coast was 448km per year - nearly six times the average spread of 78km per year from 1976-1999. In river...995-1998 was 49km per year, around three times the average spread of 16km per year from 1973-1998. The UK spread was most marked along the east coast north...

Report finds cruise industry is protecting the precious places it visits

...e industry has grown rapidly in recent years, with average annual increases in passenger numbers of 8.2 percent over the last two decades. More than 11 million passengers sailed on cruise ships in 2005. Between 2000 and 2004, 62 new ships were introduced to the North American market alone and another 20 are ...

Penguins waddle but they don't fall down, UH researchers say

...he larger Emperor penguins, are three feet tall on average and can tip the scales at up to 35 pounds. And they were also very eager to perform. "It's almost like playtime for them. We can't hold them back," Kurz said. "There is one in particular that always wants to cut in front of the other penguins, ...

Thin tough skin, slow-growing gills protect larval Antarctic fish

...safe area to hide from predators, Cziko said. The average freezing point of the larval fish fluids was about -1.3 degrees Celsius, according to testing with a nanoliter osmometer. Yet the fish hatch into water at almost -2 degrees Celsius. "With all this ice around, there is no way they can prevent freezin...

Breast implants not associated with cancer risk, study reports

...s on cancer occurrence for the entire country. The average follow-up time was 18.4 years. The study is the lo...reast implantation. The authors write, "After an average follow-up of 18 years, and a maximum follow-up of 37 years, we found that women who have undergone b...

World first research to speed up cure for ear infections

...r worldwide health problem and it is common for an average person to take up to 10 years before they receive medical treatment. "We tend to ignore ear infections thinking they will go away or we might have a reluctance to visit the doctor ?but in third-world countries the problem is common due to the lack o...

Aspirin reduces cardiovascular risks in men and women -- but differently

...The analysis found that routine aspirin use for an average of 6.4 years would lead to 2.5 major bleeding events per 1,000 women and 3 major bleeding events per 1,000 men. "For this reason, while we believe that many more people could benefit from taking aspirin, it is important for patients and their physic...

Virginia Tech helping to develop higher quality, disease-resistant wheat varieties

...3 wheat production in the U.S. which represents an average of 38 million metric tons per year valued at more than $5 billion. This project includes an extensive outreach component to share information about these new technologies with growers and end-users and an educational program to attract new students ...

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