Knowledge of secondary school pupils regarding sexual health education

Objective: To assess the sexual health knowledge of secondary school pupils in order to ascertain whether the current government public health and education policies are having any impact on pupils' sexual health.

Design: Results obtained from a questionnaire as part of a two‐phase intervention study.

Setting: Nineteen mixed‐sex, state secondary schools in central England.

Participants: Year 8 pupils (350 male, 345 female), year 9 pupils (300 male, 325 female) and year 10 pupils (310 male, 329 female).

Intervention: A questionnaire survey to assess the knowledge of pupils' sexual health education.

Main outcome measures: Questionnaires distributed to pupils as baseline to assess their knowledge of sexual health, contraception and sexually transmitted infections.

Results: Sexual health knowledge improves with age. A significant difference across all age groups was found, although knowledge regarding sexually transmitted infections and emergency contraception is poor for all age groups.

Conclusions: Current sexual health education provision is not providing young people with adequate knowledge regarding sexual health and contraception.     

Television performance in Indonesia: steering between civil society,state and market

This article looks at the television landscape in Indonesia that has undergone a major transformation in recent decades. As one of the ‘Asian Tigers,’ Indonesia introduced commercial television in two waves between 1989 and 2002 as a complement to the traditional state broadcaster, TVRI. During the Reformasi movement, commercial TV stations contributed to the emerging civil society in the period 1998–2000 by supporting the movement for democratic reform that led to the resignation of President Suharto. An assessment of the current Indonesian television scene shows that most commercial TV stations, after a short coalition with civil society, went ‘back to business’ again in the context of a relatively young but highly competitive Indonesian market.     

A comparison of the mystery motivator and the Get 'Em On Task interventions for off‐task behaviors

Attending to instruction is a critical behavior for academic success. Many elementary school teachers, however, identify disruptive and inattentive classroom behaviors as key barriers to students' successful educational performance. This study examined the impact of two class‐wide positive behavior support programs. The Mystery Motivator and Get 'Em On Task interventions were implemented in an alternating treatments design with fifth grade participants to decrease off‐task behaviors. Results indicated that both interventions effectively decreased off‐task behavior at the class‐wide level. Implications and suggestions for future research on evidence‐based behavioral interventions are discussed. © 2011 Wiley Periodicals, Inc.     

Evaluating the performance of calculus classes using operational research tools

This paper compares the efficiency of calculus classes. Two kinds of classes are evaluated: the traditional ones and others that use computational methods in teaching. This experiment was performed at Fluminense Federal University, Niterói, Brazil, from 1998 to 2000. The emphasis of this paper is on the quantitative evaluation using two operational research tools: multicriteria decision aid methods (mainly using the MACBETH approach) and data envelopment analysis. The evaluating variables are the level at which students enter the university and the performance of the students after studying calculus.     

Analysis of the body composition of Paralympic athletes: Comparison of two methods

Body composition is a physiological variable associated with physical activity and, in some cases, is related to athletic performance. Our objectives were to describe the body composition of participants in three distinct Paralympic sports and to compare the values of body density and estimated body fat obtained from the Paralympic athletes on the National Team by air-displacement plethysmography (ADP) and by the anthropometric method (skinfolds (SFs)). The sample consisted of 70 volunteers of both genders. The body composition of the volunteers was evaluated using the ADP in a Bod Pod^® and seven SFs. There were no significant differences between the values obtained by ADP and SF for body fat percentage (p?=?.58) and body density (p?=?.49). Analysis by Bland–Altman plots showed mean differences of 0.56?±?4.94 (?9.12–10.23) and ?0.0017?±?0.0113 (?0.024–0.020) for body fat percentage and body density, respectively. In conclusion, body composition analyses of Paralympic athletes by the ADP and SF methods show similar results, and ADP should be used as the first option when available. When the use of ADP is not possible, estimating body density and fat percentage by SF is a viable alternative for Paralympic athletes when future comparisons will use the same analysis method.     

Relationship between physical activity,physical fitness and multiple metabolic risk in youths from Muzambinho's study

Negative associations between physical activity (PA), physical fitness and multiple metabolic risk factors (MMRF) in youths from populations with low PA are reported. The persistence of this association in moderately-to highly active populations is not, however, well established. The aim of the present study was to investigate this association in a Brazilian city with high frequency of active youths. We assessed 122 subjects (9.9?±?1.3 years) from Muzambinho city. Body mass index, waist circumference, glycaemia, cholesterolaemia, systolic and diastolic blood pressures were measured. Maximal handgrip strength and one-mile walk/run test were used. Leisure time PA was assessed by interview. Poisson regression was used in the analysis. The model explained 11% of the total variance. Only relative muscular strength and one-mile walk/run were statistically significant (p?相似文献