Tag: "valid" at biology news

September/October 2004 Annals of Family Medicine tip sheet

...ure the effect of spirituality on well-being, is a valid and reliable measure of well-being in primary care outpatients. They suggest the instrument may be useful in studies that investigate health-related quality-of-life and chronic illness, aging and end-of-life care. Adapting Psychosocial Intervention...

NYU researchers simulate molecular biological clock

...matical assumptions in their model that may not be valid in real-life cells. Their model was validated with a large library of data on the concentrations of the molecular species within the mouse molecular clock at different times of the day and data on the behavior of mice with circadian clock mutations. ...

Open microfluidic and nanofluidic systems

...d other substrate materials. It should also remain valid if one further shrinks the surface channels and, in this way, moves deeper into the nanoregime. As one reaches a channel width of about 30 nanometer, one theoretically expects new effects arising from the line tension of the contact line, but such na...

Bird IQ test takes flight

...ry of one anecdote, why would you expect to find a valid pattern in 2,000? I've been waiting for something to come up that would invalidate the system, but nothing has." The biologist, whose work is supported by Science and Engineering Research Canada (NSERC), will present his latest findings at the 2005 A...

New class of tuberculosis-fighting antibiotics suggested by biochemical-pathway study

...rowth of TB in mice was small, it suggested that a valid target was identified. The research group went on to show that the enzyme disabled by the phenothiazines is called type II NADH dehydrogenase and is a unique and important antimicrobial target. "What we have now is a new target in TB," says Rubin. ...

Alcohol consumption disrupts breastfeeding hormones

...feeding. But as Mennella points out, "There was no valid scientific evidence to support this claim." To address this research deficit, the current study, reported in the April 2005 issue of the Journal of Clinical Endocrinology and Metabolism, is the first to analyze the effects of alcohol on lactational...

Brain may be less plastic than hoped

...r distances." The study also establishes fMRI as a valid method to measure reorganization in the monkey brain, Smirnakis added. Similar studies could one day show scientists how to help the brain to recover from injuries. "In humans, studying brain reorganization is difficult. Cortical injuries are not hap...

Racehorses, asthmatics, meatpackers may have similar etiology of airway disturbances

...under comparable conditions, but we're able to get valid data from horses without running them at their maximum exertion points. Another advantage with horses is that most of our monitoring is noninvasive, and because they're hardy and well-cared for, they actually can serve as their own controls in most e...

Women, space travel and infection: Bed-rest study investigates female immune response

...dy because scientists and the space community want valid conclusions about effects on women," said Sonnenfeld, who is also vice president for research at Binghamton University, State University of New York. The study involves 24 healthy, non-smoking female volunteers between the ages of 25 and 40. Candida...

Silenced gene suggests greater risk, possible marker for African-Americans with prostate cancer

...s, and African-Americans, "to make this study more valid and stronger." Co-investigators include Hideki Enokida, MD, PhD, of SFVAMC, UCSF, and Kagoshima University, Japan; Hiroaki Shiina, MD, PhD, and Shinji Urakami, MD, of SFVAMC, UCSF, and Shimane University, Japan; Mikio Igawa, MD, of Shimane University...

20th annual convention of US naturopathic physicians convenes Aug. 24, 2005 in Phoenix

...T Please see the AANP website for requirements for valid press credentials....

Research zeros in on bipolar disorder genes, link with thyroid condition

...enetic vulnerability for developing AT. If proven valid in further studies, the research suggests that members of families in which bipolar disorder occurs could be tested for autoimmune thyroiditis by means of a simple blood analysis, thereby helping to identify those who also may be at risk for developi...

Genetics center to launch new genetic-testing initiative

...blic may not realize how little is known about how valid many of these new tests are, or how much good they actually do," said Ruth R. Faden, Director of the Berman Bioethics Institute at Johns Hopkins. "We are thrilled that this extraordinary award from The Pew Charitable Trusts will allow our Genetics a...

Gambling monkeys give insight into neural machinery of risk

...," said Platt. Confident that they had developed a valid animal model that would reveal insights into the brain mechanism for assessing risk, the researchers next explored the neural circuitry that governed that assessment. They threaded hair-thin microelectrodes into a brain region called the posterior ci...

New research shows no link between stress and chances of IVF success

...ds used, although the PGWB method was proven to be valid and reliable and the other questionnaire used had been devised specially for the study to pick up aspects of stress identified among infertility patients. She said the timing of the first questionnaire was chosen because they wanted to study the wome...

Novel plague virulence factor identified

...nstrated that the use of the common roundworm is a valid model for studying the virulence of Yersinia pestis, the bacterium that causes plague. They also showed that the interaction between Y. pestis and the worm is quite similar to what occurs in mammals, including humans. The work indicates that the path...

Purdue scientists see biochemistry's future - with quantum physics

... "But our methods are based on approaches that are valid for any molecular system. Therefore, hundreds more metalloproteins that are of great scientific and practical interest may be studied in the future with the methods we have developed." For example, Rodriguez is planning to study the manganese involve...

Mental declines can be reversed - report shows

... abilities is "ecological validity". Ecologically valid activities are those that people do on regular basis as part of their daily lives, said Foth, whose paper with Thompson is published this month in Educational Gerontology. Examples of "ecologically valid" activities that can improve mental capacity i...

Sept/Oct 2005 Annals of Family Medicine tip sheet

...patory Decision-Making Scale (RPAD) is a reliable, valid and easy-to-code objective measure of participatory decision-making. The RPAD assesses physician behavior that encourages patient participation in decision making. Rochester Participatory Decision-Making Scale (RPAD): Reliability and Validity By...

New study uncovers major inaccuracies in global wildlife trade monitoring

...stems measured trade in similar categories, making valid comparisons possible. The five groups analyzed represent more than 2,000 species, or 6 percent of the approximately 33,600 species currently under CITES regulation. The study identified several factors contributing to the widespread discrepancies be...

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(Date:10/30/2014)... – When most animals begin life, cells immediately begin ... vital organ. However, mammals, including humans, are special. The ... first choice – to become the protective placenta or ... this critical first step that research from Michigan State ... the current issue of PLOS Genetics ...
(Date:10/30/2014)... in the gastrointestinal tract fulfill many vital functions ... bacteria can induce strong inflammatory responses by the ... enter the bloodstream. , Although acute inflammation is ... or systemic inflammation is linked to numerous disorders ... of inflammatory processes in the development of psychiatric ...
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Breaking Biology News(10 mins):Identifying the source of stem cells 2Breakdown in gut barriers to bacteria may promote inflammation and craving in alcoholics 2Securus Technologies Adds Advanced Features to Its Industry-Leading Investigative Analytics Product 2
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