Perception of peer behaviors is an important predictor of actual risk behaviors among youth. However, we lack understanding of peer influence through social media and of actual and perceived peer behavior concordance. The purpose of this research is to document the relationship between individual perception of and actual peer sexual risk behavior using online social networks. The data are a res...

We use self-reported health measures, nurse-administered measurements and blood-based biomarkers to examine the concordance between health states of partners in marital/cohabiting relationships in the UK. A model of cumulative health exposures is used to interpret the empirical pattern of between-partner health correlation in relation to elapsed relationship duration, allowing us to distinguish...

Developing upon cross-sectional research (Smith, Ntoumanis, & Duda, 2007) supporting the self-concordance model (Sheldon & Elliot, 1999) as a framework for contextual goal striving, the current study investigated the assumptions of the model in relation to season-long goal striving in sport. The study additionally examined the role of coping strategies in the persistence of goal-directed effort...

this study was aimed at determining intra and inter-observer concordance rates in the gleason scoring of prostatic adenocarcinoma, before and after a web-based educational course. in this self-controlled study, 150 tissue samples of prostatic adenocarcinoma are re-examined to be scored according to the gleason scoring system. then all pathologists attend a free web-based course. afterwards, the...

How one thinks about or conceptualizes a goal has important consequences for the motivational features of goal pursuit. Two experiments tested the hypothesis, inspired by work on meaning in life, action identification theory, and expectancy-value theory, that high-level construal of an academic goal should enhance motivation to pursue that goal. In each experiment, we manipulated highlevel vers...

Let g be a continuously differentiable function whose derivative is matrix monotone on positive semi-axis. Such a function induces a function φ(x) = tr(g(x)) on the cone of squares of an arbitrary Euclidean Jordan algebra. We show that φ(x)− ln det(x) is a self-concordant function on the interior of the cone. We also show that − ln(t−φ(x))−ln det(x) is √ 5 3 (r+1)-self-concordant barrier on the...

OBJECTIVES Race concordance occurs when the race of a patient matches the race of his/ her physician and discordance occurs when races do not match. Previous research has suggested an association between race concordance and measures of patient satisfaction and health outcome. In this study, we examined the relationship between race concordance and perceived quality of care, self-reported gener...

This study aimed to: (1) determine concordance rates of self-reported and subjectively determined indicators of oral malodor in twins; (2) determine the relative contributions of genetic and environmental factors to levels of volatile sulfur compounds (VSCs) in intraoral and exhaled breath. Fifty-one twin pairs participated in the study. Measurements of VSCs were obtained by a halimeter. The pr...

Background Clinicians involved in the management of children with chronic conditions are encouraged to utilise self-report outcome measures to inform clinical management and ensure patient preferences are considered throughout care provision. The use of self-report measures in the paediatric patient is not without challenges and alternative parent/proxy responders are often considered more appr...

AIM To assess patients' understanding for the reasons for taking 5-aminosalicylic acid or ursodeoxycholic acid as chemoprophylaxis against colorectal carcinoma associated with inflammatory bowel disease (IBD). METHODS A questionnaire-based study using a 5-point opinion scale was performed. One hundred and ninety-two patients with colitis only and 74 patients with primary sclerosing cholangiti...