Tag: "variability" at medical news

Cognitive Test Takers and Score Variation

...ont think many people would have expected that the variability would be this large, and apparent in a wide variet... Salthouse believes that measures of within-person variability could be a useful diagnostic marker in their own right. For example, he and other cognitive psycholo...

IIT Delhi Scientist Finds Climate Models Consistent With Ocean Warming Observations

Climate models represent variability in ocean heat content on interannual-to-decadal ti...modelled and observed variability. He found, the variability could be explained by accounting for changes in observational coverage and instrumentation and by in...

Individual Differences in Sleep Structure are Biologically Determined

... others take their time . Such sleeping pattern variability has long been attributed solely to differences in circumstances, habits, and other non-biological factors. But now a study led by Hans Van Dongen, associate research professor and assistant director of the Sleep and Performance Research Center at Was...

Revealing the Secrets of Gut Ecosystem

...s, Palmer noted. Although the researchers observed variability within their study, the composition and dynamics of the evolving microbial ecosystems were strikingly similar in the twins. This, Palmer said, provided evidence that genetic and environmental factors shape those ecosystems in reproducible ways. "Th...

UN Report Warns of 'environmental Refugees'

... 1998 and 2002, caused by a combination of climate variability and human-induced land-cover changes, displaced millions of people, mainly subsistence farmers and villagers," it says. "Similar examples can be seen in India, Mexico and other poor countries."The report says the impact of climate change on urban w...

Study Finds That Fruit Flies also Have Free Wills

... to the same external stimuli, they attribute this variability to random errors in a complex brain," Brembs said.... recorded their turning behavior to show that such variability cannot be due to simple random events but is generated spontaneously and non-randomly by the brain. ...

A Pratical Tool to Detect Bone Mass Deficiencies in Children With Chronic Diseases

...se sample large enough to capture normal bone mass variability 3.Statistical analysis methods that adequately characterize age-related trends and value distribution at different ages The study found that bone mass is still increasing at age 16 in girls and 17 in boys, underscoring the importance of maintainin...

Michael J. Fox Foundation Awards $710,000 to Understanding of Parkinson's Disease Subtypes

...archers and clinicians alike -- is the significant variability in how the disease manifests itself from patient to patient," said Sarah Orsay, chief executive officer of the Foundation. "The retrospective studies funded under PD Subtypes aim to analyze data already gathered on different forms of the disease. T...

Insufficient Sleep Increases Risk of Cardiovascular Disease: Study

...aster heart beat and significantly less heart rate variability following the nights of sleep deprivation. Heart rate variability describes the naturally occurring beat-to-beat changes in heart rate which reflect the body's adjust...

Insomnia-related Symptoms High Among ‘Night Owls

...f-report measures of nocturnal sleep, sleep period variability and waking correlates and consequences of insomnia. Compared to the morning and intermediate types, people with insomnia who prefer evening activities (i.e., “night owls”) reported the most sleep/wake irregularities and waking distress, even after ...

Study Finds Dietary Fat Interacts With Genes

... “The problems of obesity are complex and there is variability among people. This study contributes to our knowledge of how APOA5 works and adds to our understanding of genetics and dietary interventions.” ource-Eurekalert SRM/B...

Study Sheds Light on Value of Newer Antipsychotic Drugs for Schizophrenia

...roup. “These results remind us of the considerable variability in clinical circumstances and of our need to be responsive to an individual’s needs and preferences.” Source-Newswse SRM...

Mathematical Model Predicts Cholera Outbreaks

...hern Oscillation (ENSO), a major source of climate variability from year to year, influences cycles of cholera in...They also showed that the coupling between climate variability and cholera cycles has become stronger in recent decades. Now, Pascual is examining the feasibilit...

Cochlear Implants in Both Ears Enables Better Hearing

...or something else that motivates them.' Although variability existed among the children, the study indicates that most did develop the ability to locate speech and other sounds more accurately when using two cochlear implants versus one. This capability also increased with experience. 'We're now seeing that th...

New Inhaler is Child's Play

... hoped to overcome was the fact that there is high variability in the mass of the drug that is actually delivered to a patient's lungs when using inhalation devices. This is not solely down to the design of the device itself, but also individual patients' compliance with labelled instructions. ”Especially for...

Mixed HIV Coreceptor Use Associated With Lower CD4 Count

...of change in tropism is more likely to reflect the variability of the Trofile coreceptor assay used in the study rather than the speed at which tropism can switch in a treatment-experienced population. Dual-tropic viral strains are found more commonly in treatment-experienced patients, and it has been suggest...

Effects of Multiple Copies of Genes on Disease Risk

...ne copy number could explain more person-to-person variability than the single-letter changes in the genetic code known as SNPs [single nucleotide polymorphisms]." Graubert's lab uses human samples and mouse models to study leukemia, cancer that occurs in the bone marrow cells that make blood cells. Using Nim...

Aspirin Saves Life Even in Cancer Patients

...physicians were treating their patients with great variability and the disparity was obvious," Durand says. Sarkiss, who is the study's lead author, Durand, and a team of researchers which included investigators from Baylor College of Medicine and Duke University Medical Center, conducted a retrospective analy...

Horse Heart Coherence May Be Key To Non-invasive Stress Detection

... recorders projected increased coherent heart rate variability (HRV) patterns for the horses during times of close, calm contact between them and Dr. Gehrke. Coherent HRV patterns are the result of positive emotions and facilitate brain function. “Horses receive information from body language and give feedback...

Intervention Can Cut Job Stress While Protecting the Heart

...hieve small, but significant changes in heart rate variability and a small decrease in arterial blood pressure by participating in a stress management program at work. After participating in the year-long stress management program, workers' scores on a test that measures perceived stress were significantly low...

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