Early Communicative Gestures Prospectively Predict Language Development and Executive Function in Early Childhood

Using an epidemiological sample (N = 1,117) and a prospective longitudinal design, this study tested the direct and indirect effects of preverbal and verbal communication (15 months to 3 years) on executive function (EF) at age 4 years. Results indicated that whereas gestures (15 months), as well as language (2 and 3 years), were correlated with later EF (φ_s ≥ .44), the effect was entirely mediated through later language. In contrast, language had significant direct and indirect effects on later EF. Exploratory analyses indicated that the pattern of results was comparable for low‐ and not‐low‐income families. The results were consistent with theoretical accounts of language as a precursor of EF ability, and highlighted gesture as an early indicator of EF.     

The persistence of clinical questions across shifts on an intensive care unit: an observational pilot study

How do clinical questions emerge and move toward resolution in the intensive care setting over the course of 24 hours? In a 20-bed surgical intensive care unit in a large, tertiary-care teaching hospital, informationists shadowed clinicians for 2 48-hour periods to record questions, noting when they were asked and whether they were answered. Thirty-eight percent of 112 recorded questions remained unanswered. Some unanswered questions persisted across shifts, and clinicians'' information-seeking behaviors changed over time. Clinical information services can be improved and integrated more fully into clinical workflows based on a fuller understanding of the life cycle of clinical inquiry.     

Enhancing Adherence in Clinical Exercise Trials

Despite advancements in exercise science research and the development of techniques to promote adherence, exercise adherence is often viewed pessimistically by those in the field of puhlic health and exercise science. It is me that exercise rates in the general population have not changed appreciably over the past two or three decades, and from this perspective, there has been little improvement in exercise adherence. However, recent clinical trials have demonstrated good adherence to both the exercise intervention and measurement protocols in controlled studies. Most methods recommended to improve adherence rates can be easily incorporated into standard research practices and require minimal time. effort, or expense. By considering adherence issues during study design and implementation. investigators can substantially enhance treatment and measurement adherence.     

Student enrollment decisions and academic success: evaluating the impact of classroom space design

Learning Environments Research - Instruction based on active learning is being promoted in higher education by the creation of new collaborative teaching and learning spaces, but capacity does not...     

A comparison of ratio and allometric scaling methods for normalizing power and strength in elite rugby union players

Abstract

In this study, we compared the effectiveness of ratio and allometric scaling for normalizing power and strength in elite male rugby union players. Rugby union forwards (n = 18) and backs (n = 20) were assessed for squat jump and bench throw peak power, and box squat and bench press one-repetition maximum strength. The performance data for the forwards and backs were compared using ratio (P/BM) and allometric scaling (P/BM^b ), where P represents performance, BM is body mass in kilograms, and b is a power exponent. A proposed allometric exponent (0.67) and exponents (±95% confidence intervals) derived for the box squat (0.33 ± 0.31), bench press (0.45 ± 0.30), bench throw (0.46 ± 0.36), and squat jump (0.64 ± 0.31) exercises were used. In general, the absolute expression of power and strength was superior for the heavier forwards, but after ratio scaling these performance measures then favoured the lighter backs. There were no performance differences between the forwards and backs after allometric scaling using either the proposed or the derived exponents. Thus, allometric scaling may provide a more effective method for normalizing power and strength in elite athletes when body size is a confounding variable.     

Obesity paradoxes

Abstract

In this review, we examine the original obesity paradox phenomenon (i.e. in cardiovascular disease populations, obese patients survive better), as well as three other related paradoxes (pre-obesity, “fat but fit” theory, and “healthy” obesity). An obesity paradox has been reported in a range of cardiovascular and non-cardiovascular conditions. Pre-obesity (defined as a body mass index of 25.0–29.9 kg · m^?2) presents another paradox. Whereas “overweight” implies increased risk, it is in fact associated with decreased mortality risk compared with normal weight. Another paradox concerns the observation than when fitness is taken into account, the mortality risk associated with obesity is offset. The final paradox under consideration is the presence of a sizeable subset of obese individuals who are otherwise healthy. Consequently, a large segment of the overweight and obese population is not at increased risk for premature death. It appears therefore that low cardiorespiratory fitness and inactivity are a greater health threat than obesity, suggesting that more emphasis should be placed on increasing leisure time physical activity and cardiorespiratory fitness as the main strategy for reducing mortality risk in the broad population of overweight and obese adults.     

Trends in Female Authorships, Editorial Board Memberships, and Editorships in Educational Psychology Journals from 2003 to 2008

Robinson, McKay, Katayama, and Fan (Contemporary Educational Psychology, 23, 331–343, 1998) reported that women were underrepresented in terms of authorships, editorial board memberships, and editorships in the field of educational psychology based on membership trends. More recently, Evans, Hsieh, and Robinson (Educational Psychology Review, 17, 263–271, 2005) reported that women had made gains as editors but had not kept pace with organizational membership in terms of authorships and editorial board memberships. Our goal in this paper was to further examine women’s participation in educational psychology journals by extending the datasets of Robinson et al. and Evans et al. The number of female authors per article, particularly those from non-US institutions, has continued to increase. However, consistent with Evans et al., although females are continuing to make numerical gains in both authorships—both primary and secondary—and editorial board memberships, their involvement has not kept pace in relation to membership trends.     

The motivation to study: an analysis of undergraduate engineering students at a Caribbean university

The link between motivation and success is well documented; however, there is still room to problematise motivation in regards to the individual and contextual levels. This study looks at motivation in relation to students studying undergraduate engineering courses at a Caribbean university and seeks to discover the factors that motivate them to study and the factors that keep them motivated. An online questionnaire was constructed using 19 Likert-type questions and 5 questions that allowed for open-ended qualitative responses. The findings reveal that participants tended to be motivated by the increased possibility of desired future careers and tended to stay motivated by a combination of goal-orientation and family support. It is recommended that departments, faculties and institutions deliberate on shared and contextually constructed understandings of why students choose to enrol in particular university courses.