11,351,068 papers found

BACKGROUND: The tutorial group and its dynamics are a cornerstone of problem-based learning (PBL). The tutor's support varies according to the setting, and it is pertinent to explore group effectiveness in relation to different settings, for example online or campus-based. The PBL groups' effectiveness can partly be as…

OBJECTIVE: The study's aim was to determine any association between choroid plexus cysts (CPCs) and trisomy 18 in a population of fetuses previously screened by nuchal translucency (NT) thickness measurement. METHODS: During the study period (May 1999 to December 2004), 7,795 fetuses had an NT scan and second-trimeste…

During the past 15 years, issues regarding the ethical conduct of quality improvement activities have emerged. Recently, many have called for regulation of quality improvement studies using institutional review boards. The author reviews the history of the human rights argument within the context of a relevant, newly r…

BACKGROUND: The amplified emotionality characteristics of bipolar disorder (BD) may interfere with goal pursuit in the recovery process. This is the first study to test the coping flexibility model empirically among people with BD. Finding ways to cope with goal-striving life events should shed light on managing elevat…

The purpose of this article is to characterize fully employed users of heroin, compare them with their unemployed counterparts, and identify demographic, human, and social capital and drug misuse factors that are differentially associated with full employment. A nested case-control research design was used to identify…

The study was conducted from August to December 2007, in two urban, poor neighborhoods in Delhi. A respondent-driven sampling was used to recruit 343 injection drug users who were interviewed with a survey questionnaire that included items of human rights abuses, health service utilization, and sociodemographic charact…

This study's primary objective is to investigate the connection between carbon emissions and global warming by tracking how these emissions causes the climatic changes spread across the environment. Based on theories established from past observations that the effect rates for various factors, a mathematical model has…

BACKGROUND: There is no information about the desire and motivation for children among planned lesbian families. The overall aim of this research was to examine whether planned lesbian families differ from heterosexual families in desire and motivation to have a child. The reason for studying this is that desire and mo…

BACKGROUND: Pulsed radiofrequency (PRF) treatment modulates the dorsal root ganglion (DRG), thereby blocking nociceptive signals. Its success depends on precise electrode placement adjacent to the target DRG. However, proper electrode placement for the S1-DRG is challenging due to uncertainty regarding the S1-DRG's pre…

BACKGROUND: Diabetes is a common disease in pediatric populations. Family functioning has been related to child adaptation to diabetes. PURPOSE: To determine the impact of family factors on diabetes, particularly the influence of family support and family environment on adherence to treatment, quality of life, and met…

Ten years after Humanae Vitae, Human Sexuality, a study commissioned by the Catholic Theological Society of America, is being widely discussed. The four propositions that served as the study's theoretical base are examined in an attempt to "better appreciate and evaluate the present significance of Humanae Vitae for Ca…

BACKGROUND: The aetiology of otosclerosis is complex, and probably involves an interaction between genes and environmental factors. Previous studies have revealed genetic linkage with a number of chromosome regions, including position 7q33-36. AIM: To confirm whether linkage exists between otosclerosis and chromosome…

This commentary reviews the cross-sectional study by Denche-Zamorano et al. examining the relationship between pain distribution, physical activity, grip strength, exercise issues, and frailty risk. The commentary acknowledges the study's in-depth analysis of the association between widespread pain and frailty, while p…

In this paper we sought to reproduce, as a computational retrospective study in an EHR database (MIMIC-II), a recent large prospective clinical study: the 2013 publication, by the Japanese Association for Acute Medicine (JAAM), about disseminated intravascular coagulation, in the journal Critical Care (PMID: 23787004).…

This paper evaluates the construct validity of the Medical Outcomes Study's social support scale adapted to Portuguese, when utilized in a cohort study among non-faculty civil servants at a university in Rio de Janeiro, Brazil (Pró-Saúde Study). Baseline data were obtained in 1999, when 4,030 participants (92…

A study by Wilson and Blower in the February issue ofaddressed the issue of ensuring equity in distributing AIDS medications. Reis and Capron discuss the study's implications

Clinical studies in which a major objective is to produce Kaplan-Meier estimates of survival probabilities should be designed to produce those estimates with a desired prespecified precision as measured by their standard errors. By considering the Peto and Greenwood formulae for the estimated standard error of the Kapl…

The goal of this study was to explore two accounts for why sketching during learning from text is helpful: (1) sketching acts like other constructive strategies such as self-explanation because it helps learners to identify relevant information and generate inferences; or (2) that in addition to these general effects,…

Healthcare quality improvement (QI) studies are systematic analyses of processes and outcomes. As such, they meet one of the federal regulatory criteria defining research. They also meet the second criterion in many instances, generalizability of findings, even if it was not the study's original intent. Therefore, to e…

A community-based cross-sectional study among 554 Kolkata city street children assessed nontobacco substance use and sexual abuses along with human immunodeficiency virus (HIV)/ sexually transmitted infections (STIs) during 2007, using conventional cluster sampling technique for "hard-to-reach population" with a field-…