Sentences with phrase «researchers account for the effect»

Not exact matches

My own theory is that researchers do not have children and completely fail to account for all of the positive secondary effects of television viewing.

The global scope of the study could help researchers set upper and lower limits for black carbon deposition and better account for the effects of photodegradation, a process by which sunlight alters the molecular composition over time.

This association held even after the researchers accounted for other potential factors, including total population, number of law enforcement employees, median age, gender distribution, race distribution, poverty rate, unemployment rate, unobserved heterogeneity among cities (e.g., city area, legal system), and unobserved time - varying effects (e.g., macroeconomic conditions).

The researchers found that the rainfall predicted for East Africa on a decadal scale by models using the effects of the El Niño Southern Oscillation and the Indian Ocean Dipole did not account for as much of the rainfall fluctuations as expected for the past 34 years.

To determine what level of a toxin is safe, researchers take a dose that has no observed toxicological effect in an animal and divide it by 10 once (to account for the differences between species) and then again (to account for variations among humans» ability to handle toxins); for pesticides, the dose is then divided by 10 a third time (to allow for the extraordinary sensitivity of babies and children).

Of all the mediating factors analysed, the researchers found that a reduction in fear avoidance beliefs (fears that exercise or activity will make symptoms worse, which is an understandable reaction to having CFS) was the strongest, accounting for up to 60 % of the overall effect of CBT and GET on outcomes.

The effects of PTSD on heart disease remained strong even after researchers accounted for lifestyle factors such as smoking, physical activity level, and drinking; and major depression and other psychiatric diagnoses.

After removing the effects of solar rotation and accounting for the angle of view of areas not facing directly toward Earth, the researchers could discern the so - called giant cell flow patterns (material moving east is depicted in red, that moving toward the west in blue), which cause supergranules to slowly drift across the surface of the sun.

While the researchers stress that no current or planned wind farm approaches the size or concentration that would cause the slowdown effect, their results suggest the phenomenon tied to large wind farms needs to be accounted for in future planning of wind energy.

The researchers reported in a recent issue of Nature Communications that the effects of the Earth's tilt on the amounts of water in the oceans and in groundwater account for the changes in sea levels during this period, the Early Triassic.

However, since some languages, including English, have relatively strict word - order rules, the researchers also used a second baseline that accounted for the effects of those word - order relationships.

Overall, the researchers found that about 76 percent of the effect of ethnicity on DNA methylation could be accounted for by controlling for genetic ancestry, suggesting that nearly a quarter of the effect must be due to other, unknown factors.

Currently, when transportation and urban planners evaluate alternative infrastructure investments and policies, they may need to account for health effects from local air quality, a consideration that warrants further planning to avoid negative outcomes, according to the researchers.

The effect persisted even when the researchers, from the University of Michigan Institute for Healthcare Policy and Innovation, took into account other differences between the two types of states.

Using statistical techniques, the researchers made adjustments to account for these known effects on brain size.

The researchers adjusted their results to account for the potential effects of smoking, alcohol consumption, menopausal status, and socioeconomic factors.

The effect appeared to hold even after researchers accounted for risk factors such as greater gun ownership and lower population density.

They explain that the challenges for researchers are that the school effect must be disaggregated from family background, and that their methods must account for «selection bias» — the likelihood that children whose parents choose a charter school are already different from those whose parents do not.

«The team emphasized that clouds are particularly sensitive to subtle differences in surface warming patterns, and researchers must carefully account for such pattern effects when making inferences about cloud feedback and climate sensitivity from observations over short time periods.»

«The net effect of these anomalous winds is a cooling in the 2012 global average surface air temperature of 0.1 — 0.2 degree Celsius, which can account for much of the hiatus in surface warming observed since 2001,» wrote Australian researcher led by Matthew England of the University of New South Wales.

Research also needs to adequately control for covariates that may confound the effects of PAE, such as family processes (eg, problematic parenting or family conflict) and parental characteristics, especially maternal substance use.1, 12 Researchers also need to account for genetic liabilities that are shared by parents and offspring.13, 14 A woman's genetic risk of substance use could be passed down to her children and subsequently affect their behavior.15 Research on the consequences of PAE, therefore, needs studies with large samples, with sufficient statistical power to detect small effects, using analytical methods and designs that can account for potential confounds, including factors that are not measured.

Also, because the effects of interventions provided by these agencies are themselves unknown, studies using these types of samples confound the effects of maltreatment and the effects of institutional interventions.9 Other researchers have contended that associations between physical abuse and later adjustment problems can be accounted for by confounding factors, such as poverty and family stress.5, 10