Associations of subjective social status with accelerometer-based physical activity and sedentary time among adolescents

This study examined the associations of subjective social status (SSS) with physical activity (PA) and sedentary time (ST) among adolescents. The study population consisted of 420 Finnish adolescents aged 13 to 14 years. The adolescents reported their own SSS within their school (school SSS) and their family’s social position within society (society SSS) based on the youth version of the Subjective Social Status Scale. Adolescents’ moderate- to vigorous-intensity physical activity (MVPA) and ST were measured objectively by accelerometers and analyzed separately for the whole day and the school day. The associations between SSS and MVPA and ST outcomes were analyzed using multilevel modeling. School SSS was positively associated with whole-day MVPA and negatively associated with school-time ST. Society SSS was not significantly associated with objectively measured MVPA or ST. Both MVPA and ST are important behavioral determinants of health. As an important correlate of MVPA and ST, school SSS should be addressed by providers when discussing obesity risk and healthy behaviors with adolescents.     

Force– and power–time curve comparison during jumping between strength-matched male and female basketball players

The purpose of this study was to compare force– and power–time curve variables during jumping between Division I strength-matched male and female basketball athletes. Males (n?=?8) and females (n?=?8) were strength matched by testing a one-repetition maximum (1RM) back squat. 1RM back squat values were normalised to body mass in order to demonstrate that strength differences were a function of body mass alone. Subjects performed three countermovement jumps (CMJ) at maximal effort. Absolute and relative force– and power–time curve variables from the CMJs were analysed between males and females. Average force– and power–time curves were generated for all subjects. Jump height was significantly greater (p?≤?.05) in males than females. Absolute force was higher in males during the concentric phase, but not significantly different (p?≥?.05) when normalised to body mass. Significance was found in absolute concentric impulse between sexes, but not when analysed relative to body mass. Rate of force development, rate of power development, relative peak force, and work were not significantly different between sexes. Males had significantly greater impulse during the eccentric phase as well as peak power (PP) during the concentric phase of the CMJ than did females in both absolute and relative terms. It is concluded that sex differences are not a determining factor in measured force during a CMJ when normalised to body mass between strength-matched subjects. However, eccentric phase impulse and concentric phase PP appear to be influenced by sex differences independent of matching strength levels.     

Implementing Mathematics Reform: The Challenge Within

A qualitative case study research was conducted to investigate the process of evaluation and implementation of a Standard-based textbook by two seventh grade middle school mathematics teachers over a period of two years. The data suggested that teachers' mathematical knowledge was the greatest influence on how they evaluated and implemented the textbook. This mathematical knowledge manifested itself in how the teachers planned their instruction, interacted with students, and used the textbook in their classes.This revised version was published online in September 2005 with corrections to the Cover Date.     

Children's eyewitness memory: effects of participation and forensic context.

We examined effects of participation and forensic context on 4-year-old children's testimony. Children in "participant" and "police" conditions actively participated in games with a "babysitter"; each child in the "observer" condition watched a videotape of a child and the babysitter playing. Eleven days later, children were individually questioned about the event. Before the interview began, children in the police condition talked to a police officer who said the babysitter might have done something bad. Comparison of participant- and observer-condition performance indicated that participation increased free-recall accuracy concerning actions that took place and lowered suggestibility. Comparison of participant- and police-condition performance indicated that forensic context led to increased error in free recall and additional comments to misleading questions. However, forensic context also resulted in higher accuracy on an age-identification task and did not affect children's accuracy in answering abuse-related questions.     

Fluid and electrolyte balance in elite male football (soccer) players training in a cool environment

There are few data in the published literature on sweat loss and drinking behaviour in athletes training in a cool environment. Sweat loss and fluid intake were measured in 17 first-team members of an elite soccer team training for 90 min in a cool (5°C, 81% relative humidity) environment. Sweat loss was assessed from the change in body mass after correction for the volume of fluid consumed. Sweat electrolyte content was measured from absorbent patches applied at four skin sites. Mean (?± s) sweat loss during training was 1.69?±?0.45 l (range 1.06?-?2.65 l). Mean fluid intake during training was 423?±?215 ml (44?-?951 ml). There was no apparent relationship between the amount of sweat lost and the volume of fluid consumed during training (r ² = 0.013, P = 0.665). Mean sweat sodium concentration was 42.5?±?13.0 mmol?·?l^?1 and mean sweat potassium concentration was 4.2?±?1.0 mmol?·?l^?1. Total salt (NaCl) loss during training was 4.3?±?1.8 g. The sweat loss data are similar to those recorded in elite players undergoing a similar training session in warm environments, but the volume of fluid ingested is less.     

Education,internationalism and empire at the 1928 and 1930 Pan-Pacific Women's Conferences

In order to explore education at the first two Pan-Pacific Women's Conferences, this article builds on Campbell and Sherington's account of education in Oceania and on empirical research undertaken by Selleck and others, along with relevant primary source material. It traces elements of empire as they played out in inter-war women's education and cultural internationalism. Following Paisley it argues that histories of ‘racial modernities’ articulated in and through women's education and circulating via practices of cultural internationalism were integral to histories of ‘race’ and nation.     

An Analysis of Reported Counseling Services in Selected Public Community Colleges in the Southeastern United States

Abstract

87% of the small, public coeducational community/junior colleges in the United States, having total student enrollments of 5,000 or fewer students, reported that they provided student counseling services. The median ratio was 1 counselor per 338 students; education counseling was reported to be the primary service rendered, while job-placement counseling was seen as the least important function of the counseling center. Of the institutions responding, 77% provide counseling services to nonstudents, and 37% indicated that vocational counseling was the area in which they most needed to improve services for students.     

Learning in Early Intervention Programs: The Generalization and Maintenance of IEP Objectives

This study investigates the maintenance and generalization of preacademic objectives in children with mental retardation from early intervention programs. All the subjects (25) had mastered, according to their Individual Education Programs (IEPs), at least one task in the areas of color, shape, number, or big/little . They, along with children in three comparison groups, were given a series of tasks that included the same previously achieved IEP objectives (maintenance) and closely related tasks within the same domain (generalization). The findings indicated variability in maintenance and generalization for the children in early intervention, better for color and shape than for number and big/little. Success on generalization was below the usual standard indicating mastery (85%-100%). On the generalization tasks, children in early intervention performed similarly to older children with retardation who had lower standard scores (Peabody Picture Vocabulary Test-Revised) but roughly equivalent language ages. They performed less well than older children with retardation who had similar standard scores but higher language ages. They also performed less well than children without disabilities in regular preschool programs who were close in chronological age, but had higher standard scores and higher language ages. We conclude that performance on these tasks is closely tied to developmental age regardless of chronological age and "IQ" status. Findings are discussed in relationship to preacademic curriculum in early intervention programs.     

Consistency in children's reports of sexual and physical abuse

OBJECTIVE: The goal of the present study was to investigate the consistency of children's reports of sexual and physical abuse. METHOD: A group of 222 children, ages 3-16 years, participated. As part of legal investigations, the children were interviewed twice about their alleged experiences of abuse. The consistency of children's reports of sexual and physical abuse was examined in the two interviews, in relation to age, type of abuse, gender, memory, suggestibility, and cognitive capabilities. RESULTS: Older children were more consistent than younger children in their reports of sexual and physical abuse. Children were more consistent when reporting sexual abuse than physical abuse. Girls were more consistent than boys in sexual abuse reports. Consistency in sexual abuse reports was predicted by measures of memory, whereas consistency in physical abuse reports was not. Cognitive abilities did not predict consistency in sexual abuse or physical abuse reports. CONCLUSIONS: Implications for understanding children's allegations of abuse are discussed.