Sentences with phrase «classify types of studies»

Not exact matches

Studies have found that the additive increases risk of certain types of cancer in mice and the International Agency for Research on Cancer classifies byproduct 4 - Mel as «possibly carcinogenic to humans.»

So many experts advocate the use of an evidence hierarchy, a ladder or pyramid classifying different types of studies in the order of their evidentiary strength.

As part of the study, two experts manually classified items on sale in the antiques section of eBay, looking at the type of ivory and whether it was potentially legal or illegal.

We also performed subgroup meta - analyses by type of prevention (primary v secondary: in this study, trials involving healthy populations or patients with any specific disease except for cardiovascular disease were classified as primary prevention trials, and trials involving patients with cardiovascular disease were classified as secondary prevention trials), type of supplement by quality and dose (each supplement, vitamins only, antioxidants only, or antioxidants excluding vitamins), type of outcome (cardiovascular death, angina, fatal or non-fatal myocardial infarction, stroke, or transient ischaemic attack), type of outcome in each supplement, type of study design (randomised, double blind, placebo controlled trial v open label, randomised controlled trial), methodological quality (high v low), duration of treatment (< 5 years v ≥ 5 years), funding source (pharmaceutical industry v independent organisation), provider of supplements (pharmaceutical industry v not pharmaceutical industry), type of control (placebo v no placebo), number of participants (≥ 10000 v < 10000), and supplements given singly or in combination with other vitamin or antioxidant supplements by quality.

Morgridge computational biologist John Steill, another co-author of the KinderMining study, is using the KinderMiner tool to improve gene marker lists, which have numerous uses such as classifying cells or samples by cell type and identifying samples that may produce tumors.

The N.I.H. has classified 54 compounds as known human carcinogens based on studies indicating they cause at least one type of cancer in people.

The study of somatotyping classifies body types into 3 main groups — ectomorph, endomorph, and mesomorph (the suffix morph comes from Greek morphos, and means form, shape, or structure).

This research study from the Community College Research Center estimates the number of stackable credentials earned in the U.S., classifying stackable credentials into three types: Progression, Supplemental and Independent.

SciDev.net: This policy brief, published by the Overseas Development Institute, explores how different types of knowledge feed into policymaking processes — based on case - studies in three South - East Asian countries — and suggests that classifying knowledge can be a useful way of promoting evidence - based decisions.

They classified the 12 countries in their study into four types of political economies: neo-liberal (the US, South Africa, England and Wales, Australia and New Zealand); conservative - corporatist (Germany, France, Italy, the Netherlands); social - democratic (Sweden and Finland); and oriental - corporatist (Japan).

There is also inconsistency regarding studying anxiety and depressive symptoms as a single «internalizing domain» or as two clinically - distinct presentations.6, 7 Similar issues with how to classify symptoms are reflected in the lack of consensus as to whether emotional problems should be conceptualized and studied in a categorical versus dimensional fashion.8 Diagnostic criteria (DSM - IV - TR) 9 are often inappropriate for young children and do not capture developmentally - salient types of impairment (e.g., disruption in family routine), which make it difficult to apply psychiatric research methods.

For example, a tobacco - focused review which included any intervention type, classified interventions with a component of resilience content into different subgroups such as social competence or social influence interventions, finding evidence for both broad intervention approaches.6 For the alcohol - focused review, only universal interventions were included with such interventions grouped according to whether they targeted alcohol alone or targeted multiple substance types.5 While meta - analysis was not conducted due to the heterogeneity of studies, the review concluded that some psychosocial and developmental prevention programmes were effective.