Sentences with phrase «most previous studies»

The study authors noted that most previous studies on nausea and pregnancy loss were not able to obtain such detailed information on symptoms in these early weeks of pregnancy.
«Most previous studies of memory were based on analyzing how damage to certain brain areas affects memory,» he said.
That contrasts with most previous studies, which conclude that we only reached this level of transformation about 100 years ago.
The general research aims of this project, as well as the methods, differ in another important aspect from most previous studies.
Most previous studies focused on one specific food type, studied outcomes in later childhood or studied high - risk groups.
Most previous studies asked patients already diagnosed with a disease, such as brain cancer, to recall past cell phone use — a less reliable method.
This seemingly impossible task led most previous studies to examine randomly selected neurons or focus on a specific type of cell.
Most previous studies used only monthly data, which can mask the effects on peak demand.
Most previous studies mainly focused on how moisture in soil responds to amounts of precipitation, but are we missing an important factor that can explain soil moisture variations in general?
Most previous studies on exercise and cognition have focused on aerobic exercise, which produces very strong effects on the brain.
In most previous studies of how these connections evolve, scientists have focused on the role of the postsynaptic neurons.
This cross-sectional study was to assess the relationship between RA, breastfeeding, and also use of oral contraceptives, in a population of older women from South China, where cultural habits differ from those in the West, where most previous studies were conducted.
«Unlike most previous studies on land use that have focused solely on climate change impacts, the current study also accessed the land use impacts on the ecosystem,» says Minchao Wu, doctoral student in physical geography at Lund University.
While most previous studies concerning these factors examined married couples only, the present study focused mainly on those in dating relationships, thus egalitarianism as a predictor means much more than the sharing of housework.
Part of the problem, adds Frances Seymour, CIFOR's director - general, has been that most previous studies looked at anecdotal evidence from single sites.
In addition, the data density and geographic extent of this study is far greater than most previous studies because over 16,000 stream temperature sites were used with thousands of biological survey locations to provide precise information at scales relevant to land managers and conservationists.
«Most previous studies aggregate all comorbidities into an index with little consideration of how a specific comorbid condition can impact lung cancer outcomes in an individual,» Islam said.
Quinn said most previous studies on potential biofuel plants, or feedstocks, focused on identifying highly invasive ones that should be avoided if possible.
Most previous studies attribute this to changes in the ocean circulation.
Though a few exceptions must be acknowledged (e.g., Suls and Green 2003), most previous studies confirmed the absence of gender differences in relation to socialization of alcohol use (e.g., Burk et al. 2012; Kiuru et al. 2010; Rabaglietti et al. 2011).
The study compared a group of dyslexic children with two different control groups: an age - matched group included in most previous studies, and a group of younger children who were matched at the same reading level as the children with dyslexia.
Most previous studies of apocalyptic astronomical events — like asteroid impacts, neighboring stars going supernova or insanely energetic explosions called gamma - ray bursts — focused on their threat to humankind.
This cross-sectional study was to assess the relationship between RA, breastfeeding, and also use of oral contraceptives, in a population of older women from South China, where cultural habits differ from those in the West, where most previous studies were conducted.
Unlike most previous studies, which predicted future extinction risks based only on projected contraction of areas with suitable climate for each species, the present study estimated extinction risk as the probability of the population size falling to zero by the year 2100.
Actually Olson et al's abstract states «Our results are consistent with most previous studies» and «The mode of the climate sensitivity estimate is 2.8 °C, with the corresponding 95 % credible interval ranging from 1.8 to 4.9 °C» (which supports the first quote).
The conclusion that humanity must aim for a CO2 amount less than the current amount is a dramatic change from most previous studies, which suggested that the dangerous level of CO2 was likely to be 450 ppm or higher.
Most previous studies on evolution views were done in the Midwest and Northeast, Rissler said, and hearing many of her students say the topic was avoided in their high - school science classes helped prompt the study, she said.
Most previous studies have compared breast fed children with children who were exclusively formula fed, but some studies have found that the correlation between breast feeding and cognitive ability increases with a longer duration of breast feeding.3 13 30 A Finnish study of 1163 children found a mean difference of 2.4 points on a cognitive test at 6 months of age between children breast fed for less than five months, compared to children breast fed for at least five months.10
However, most previous studies have involved Caucasian faces or Caucasian observers, making it difficult to know if the findings are applicable to other ethnicities.
Most previous studies have dealt with ingestion and inhalation.
Most previous studies have focused on middle - aged people.
Most previous studies have relied on human assessments of appearance, but predators often see the world very differently to humans.
«Most previous studies had focused on the media cells but hadn't spent much time on the endothelial cells, and nobody had shown how the two would interact,» Truskey said.
Most previous studies would have been limited to questions asking a small number of people, after the fact, how they had felt at a certain time.
«In contrast to most previous studies, in which the animals learned from peers, the present study tested piglets after they observed their mother or their aunt in the process of solving a manipulative task,» explains Ludwig Huber, the director of this Messerli Foundation - financed study.
«Most previous studies have focused on using one technique at a time, even though we have evidence that there are alterations in the brain in autism in terms of structure, white - matter connectivity, and brain chemical concentrations.
«Though the results were deemed statistically insignificant, the news was that it flew in the face of most previous studies,» says Vivian Dickerson, president of the American College of Obstetricians and Gynecologists, who argues that the study should not inhibit women from using hormone replacement in early menopause to relieve symptoms such as hot flashes and mood swings.
Most previous studies have indicated the dominate role of water usage in changes in the lake surface area.
«Old age has been recognized as an independent predictor of worse outcome from concussion, but most previous studies were performed on younger adults,» said the study's lead author, David Yen - Ting Chen, M.D., from the Department of Radiology at Shuang - Ho Hospital, Taipei Medical University, in New Taipei City, Taiwan.
Most previous studies have focused on the production of NOx in the immediate vicinity of storms.
They found that sleep duration and sleep efficiency were «remarkably lower» than values reported in most previous studies, noted Stuart F. Quan of the University of Arizona in a commentary.
Keep in mind that most previous studies had never separated processed meat (such as hot dogs, bologna, lunch meats with chemical additives, etc) vs unprocessed meats (such as a healthy grass - fed steak, pasture - raised pork tenderloin, grass - fed burger, wild game meats, etc) in investigating the relationship between meat eating and heart disease.
(Most previous studies have lumped together all time spent on social media.)
The Deming finding is a particularly important result because, in contrast to most previous studies, the achievement was measured on a high - stakes exam.
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