Search results for "difference"
showing 10 items of 1534 documents
DSM-IV Combined Type ADHD Shows Familial Association With Sibling Trait Scores
2008
Contains fulltext : 69060.pdf (Publisher’s version ) (Closed access) Attention deficit hyperactivity disorder (ADHD) is a discrete clinical syndrome characterized by the triad of inattention, hyperactivity, and impulsivity in the context of marked impairments. Molecular genetic studies have been successful in identifying genetic variants associated with ADHD, particularly with DSM-IV inattentive and combined subtypes. Quantitative trait locus (QTL) approaches to linkage and association mapping have yet to be widely used in ADHD research, although twin studies investigating individual differences suggest that genetic liability for ADHD is continuously distributed throughout the population, u…
Decrease in Serum Vitamin D Level of Older Patients with Fatigue
2019
Fatigue is characterized by reduced energy level, decreased muscle strength, and a variable degree of cognitive impairment. Recent evidences seem to link vitamin D deficiency to fatigue. The aim of this study was to assess and compare vitamin D status in a cohort of older subjects with and without fatigue. We recruited a total of 480 subjects, 240 patients with fatigue and 240 controls without fatigue, from the Cannizzaro Hospital of Catania (Italy). Fatigue severity was measured by the fatigue severity scale, whereas mental and physical fatigue were measured through the Wessely and Powell fatigue scale, respectively. We also measured several blood parameters and 25-OH vitamin D. Subjects w…
The heritability of depressive symptoms: multiple informants and multiple measures
2002
Background: Earlier research suggests large rater differences in heritability estimates of children's depressive symptoms in the context of significant age and sex-limitation effects. Methods: With data from an ongoing, population-based twin-family study, we estimated genetic and environmental influences on children's depression with models allowing for sex-specific effects. Our assessments of twins included self-reports and ratings made by their classmate peers, their parents and their teachers, allowing estimates of genetic and environmental effects with data from different informants. Model-fitting used maximum likelihood estimation of log-transformed data from a sample of 1,366 11- and …
Long-term outcomes in men and women with ST-segment elevation myocardial infarction and incomplete reperfusion after a primary percutaneous coronary …
2019
Background The failure of reperfusion therapy in patients with ST-segment elevation myocardial infarction (STEMI) is more frequent than considered previously. Aim To evaluate sex-related differences in long-term outcomes in patients with STEMI and incomplete infarct-related artery reperfusion after a primary percutaneous coronary intervention. Patients and methods Of consecutive 42 752 patients with STEMI hospitalized between 2009 and 2011 in Poland, we analyzed a group of 766 (35%) women and 1453 (65%) men with less than thrombolysis in myocardial infarction (TIMI) flow grade 3 following a primary percutaneous coronary intervention. Results In the 2-year follow-up, the mortality rate among…
Development and Validation of the Questionnaire of Academic Stress in Secondary Education: Structure, Reliability and Nomological Validity
2018
This study presents the validation process of the Questionnaire on Academic Stress in Secondary Education (QASSE) designed to assess the wide variety of school sources and situations related to academic stress in adolescence, and their relationship with students&rsquo
Gender, self-confidence, sports, and preferences for competition
2016
In the last years, research in economics has shown a gender gap in the willingness to compete with women shying away from competition more than men do. This gender difference in preferences towards competition has been considered a critical factor in explaining the small percentage of women found in top-level positions in business, science, or politics. Therefore, in order to improve women job prospects, research and policy interventions try to offer incentives for women to increase competitive behavior. However, other recent studies specifically point at men¿s competitive behavior as the responsible for some of the financial markets malfunctions, suggesting that an influx of talented women…
Eco depletion: The impact of hunger on prosociality by means of environmentally friendly attitudes and behavior
2021
Abstract The present research investigated the impact of hunger on prosociality in a consumer choice context by means of environmentally friendly attitudes and behavior. Two eye-tracking studies were conducted with hunger measured (Study 1) and manipulated (Study 2). The data were analyzed through bivariate correlations, Pearson's chi-square tests, and analyses of variance (ANOVAs). Our findings, based on cross-sectional and experimental evidence from field and lab settings, revealed that hungry consumers express more prosocial attitudes than their satiated counterparts in terms of general environmental concerns and importance ratings of buying eco-labeled products. However, we found no sig…
Risk aversion in prediction markets: A framed-field experiment
2016
International audience; To make better decisions today, companies and other economic agents are interested in getting accurate predictions of future events. Prediction markets can, at least potentially, give those accurate forecasts for the probability of the event by aggregating information from traders. However, formal studies highlight that the risk attitudes of market participants may bias the market equilibrium prices, and consequently make the prediction unreliable. This research examines the effect of participants' risk attitudes on prediction market prices, through a framed field experiment on the two semifinals at the 2015 NCAA Men's Division Basketball Tournament. The results of t…
The impact of cyberostracism on online complaint handling
2013
Purpose – This research aims to examine how consumers react to being ignored by a company once they have complained about an online service failure. The authors seek to propose that automatic reply e-mails to customer complaints are considered a form of cyberostracism, thus having equally harmful effects on customer perceptions as a mere no reply. Design/methodology/approach – The authors first conducted a qualitative study to ensure that consumers feel ignored when companies fail to respond to their e-mails. This was followed by an experimental study that tested the research propositions. The experimental design was a 3 (ostracism) × 2 (severity of failure) factorial between-subjects desi…
Color memory matching in normal and red-green anomalous trichromat subjects
2001
The methods of simultaneous and successive color matching have been studied for a set of seven color reference samples by 15 protanomalous and 21 deuteranomalous trichromat subjects. From comparison between both populations and a group of 25 trichromat normal ones, investigated previously under similar experimental conditions [J. Perez–Carpinell et al. Color memory matching: time effect and other factors. Color Res Appl 1998;23:234–247], we can deduce the following. (a) For anomalous trichromat populations, as with a normal one, we find significant differences between simultaneous and successive color matching, p < 0.05. (b) If we consider the average of all the colors, we find that, while …