Tag: "statistically" at biology news

New mammal species identified in Australia

... and colleagues confirm that these differences are statistically significant. Genetic distances of 2.7% to 3% between the southern and northern populations of mountain brushtails further support their species status. Genetic data was collected last year when the scientists were investigating biological contro...

Council for Responsible Nutrition questions WAVE study conclusions

...nd that the researchers based their conclusions on statistically insignificant data. "In fact, the actual data showed no difference in artery blockage between the antioxidant group and the control group, even after the researchers arbitrarily created 'worst-case' numerical values to fill missing data points," st...

Genes, neurons, and the Internet found to have some identical organizing principles

...y patterns that are functionally important but not statistically significant will not be picked up by this method. But it is an important step forward in exposing the backbones of complicated systems. What could this pristine territory offer to humankind? The dream, says Alon, is to detect and understand the fund...

Fosrenol (TM) reduces damaging high levels of phosphate in end-stage kidney disease patients

...ncluding deaths. These interim data demonstrate a statistically significant reduction in mortality in favor of patients receiving Fosrenol compared with those receiving standard therapies. Data collection and analyses are ongoing. The proportion of all participants in whom pre-dialysis serum phosphorus levels we...

Treating precancerous breast cells may prevent onset of cancer

...ncer; NSAIDS had a marginal effect, but it was not statistically significant. Immortalization is a critical step for cancer progression and validates the use of in vitro models. More than 203,500 new cases of breast cancer will be diagnosed and more than 39,600 women will die in 2002, according to the American C...

Study provides direct evidence of the role of telomeres in prostate cancer development

...ls in a randomly-selected subset of cases revealed statistically significant telomere shortening in luminal cells (..., telomere lengths of the HGPIN luminal cells were statistically significantly shorter than the basal cells in all PIN lesions examined. Since basal cells are thoug...

Light to moderate drinking during pregnancy can affect adolescent growth

...that, although frequency of binge drinking was not statistically associated with reduced growth, the investigators reported that a dichotomous measure of bingeing was. Based on animal evidence, it is possible that these low level alcohol-related deficits may reflect maternal drinking on only a few days per week r...

Laboratory study explains clinical promise of anti-angiogenesis cancer drug

... ones given TM preventively developed tumors. This statistically significant disease-free survival ended, though, when the mice were taken off TM -- all of them developed tumors within two weeks. Microscope studies showed that those given TM had "microtumors" in their breast areas, suggesting that the cancer had s...

Lazy snakes! Pythons can be couch potatoes, too

...als with the largest and smallest volumes were not statistically different; intermediate meals induced the greatest SDA. Gelatin appeared to be assimilated but is not cause a significant SDA response Collagen caused an SDA response; however it was always completely regurgitated several days following ingestion. ...

Pythons can be couch potatoes, too

...als with the largest and smallest volumes were not statistically different; intermediate meals induced the greatest SDA. Gelatin appeared to be assimilated but did not cause a significant SDA response. Collagen caused an SDA response; however it was always completely regurgitated several days following ingestio...

Songbird population declines linked to acid rain

...n the forest floor. The model predicts that, after statistically adjusting for several other factors (soil, vegetation, topography, thrush abundance), the probability of a wood thrush breeding is much reduced at a highly acidified site. The negative effects of acid rain might also be heightened by such factors as ...

18F-FDG PET predicts lymphoma treatment outcome

... bone marrow transplantation. The study reported a statistically significant number of false negatives in patients who had completed treatment, which contributed to its lower value as a predictor at the end of treatment. Six patients who had a false-negative FDG uptake at the completion of treatment ultimately re...

Biomarkers of aging news advisory

... to feed freely. But this mortality data isn't yet statistically significant because few of the primates in either group have died, Dr. Roth said. However, none of the men, who reported consuming an average of 2,300 calories daily, is believed to have been on a calorically restricted diet. "The fact that these men...

Genes, maltreatment, and the cycle of violence

... prone. Moreover, genetic susceptibility, even if statistically impressive, is not genetic causation. Many people will have the genetic susceptibility and yet show remarkable resiliency in the face of maltreatment, going on to live constructive lives. It is well known that the only good predictor of violence is...

A laser-based spectometry screening tool may provide early and efficient detection of breast cancer

...kers based on their collective contribution to the statistically significant separation between stages 0-I breast cancer patients and non-cancer controls. This same separation was observed with independent test data of patients with stages II and stage III breast cancer. A cross validation of the data, derived by...

Multiple births - their risks and how to prevent them

...VF cycle with double embryo transfer. There was no statistically significant difference between the two groups. "We've concluded from these preliminary results that performing two IVF treatments transferring a single embryo may be an attractive alternative to the double embryo strategy." She said the study would...

ICSI: Is it really safe?

...eterm and multiple births the excess was no longer statistically significant. However, more ICSI children had hypos...ates that in absolute numbers there is a small but statistically significant increase in sex chromosomal aneuploidies (loss or gain of one or more chromosomes) and n...

Cell phones don't cause cancer, rat study finds

...s and of cell biology and physiology. "We found no statistically significant increases in any tumor type, including...in nearly 30 other tissues, as well. They found no statistically significant increases in any tumor type. They also found no differences in weight or life span betwe...

Estrogen combined with calcium and vitamin D may prevent tooth loss

...n the placebo group, though these changes were not statistically significant. The effects of estrogen on jawbone density seems to reflect an overall effect on the skeleton, since improvements in the facial bones of women on estrogen correlated with increases in the lumbar spine and femur. There were no such correl...

Xenical improves glycaemic control in those poorly controlled on anti-diabetic medication

...resented today showed treatment with Xenical has a statistically significant effect on post-prandial glucose (PPG) levels in overweight or obese patients with type 2 diabetes2. At 24 weeks, Xenical-treated patients had significantly greater decreases in PPG levels compared to placebo recipients (-1.61 mmol/L vs....

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