Perceived barriers and facilitators to participation in physical activity during the school lunch break for girls aged 12–13 years

Given the short- and long-term health implications associated with overweight and obesity plus the likelihood of overweight or obesity to continue into adulthood, addressing the causes of overweight and obesity in childhood is a significant public health concern. One underlying cause of overweight and obesity is insufficient physical activity. The Department of Health and Aging recommends children engage in at least 60 minutes of moderate to vigorous physical activity (MVPA) per day; however, these recommendations are met less frequently with increasing age, and girls less often meet these recommendations than boys. School lunch times have been identified as an ideal time for maximizing children’s physical activity (PA), but studies have shown variable levels of PA among children during this time and research indicates that during school lunch times, girls are consistently less active than boys. Understanding influences on girls’ participation in PA during this time may help to increase levels of PA for this demographic. Two South Australian schools, one government and one independent, were included in the sample. Four focus groups (three or four participants per group: total 13 participants) focusing on girls’ perceptions of PA during the lunch break were conducted. Transcripts and field notes were analyzed using a social constructionist framework and thematic content analysis. The expectation to participate in activities considered “gender appropriate”, maturation, and bullying/teasing were identified as explicit barriers to participation in lunch time play. Other important barriers included a “girls’” school uniform and feelings of inadequate competency. The ability to renegotiate gender stereotypes, a unisex school uniform, and perceived high competency were important facilitators of lunch time PA. Low levels of lunch time PA evident in many young adolescent girls may be due to many complex social factors. Therefore, these barriers may need to be addressed before any environmental interventions are likely to be effective.

Plan de Negocio ANNA

Este proyecto consiste en lograr posicionar una empresa del sector textil en un el mercado de uniforme escolar. Actualmente esta empresa es informal y aunque ya cuenta con cinco colegios en su lista de clientes, se pretende por medio de un nuevo modelo de negocio que ANNA se establezca y sea reconocida como la mejor empresa de uniforme escolar de la ciudad.

Diretrizes projetuais para o desenvolvimento de uniformes escolares

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Uniform taxation for school purposes. 1914.

Mode of access: Internet.

Handbook of instructions for recording disbursements for school purposes, in accordance with the uniform system prescribed by the University of the state of New York,

Mode of access: Internet.

Viscous dissipation effects on natural convection from a vertical plate with uniform surface heat flux placed in a thermally stratified media

In the present study we investigate the effect of viscous dissipation on natural convection from a vertical plate placed in a thermally stratified environment. The reduced equations are integrated by employing the implicit finite difference scheme of Keller box method and obtained the effect of heat due to viscous dissipation on the local skin friction and local Nusselt number at various stratification levels, for fluids having Prandtl numbers of 10, 50, and 100. Solutions are also obtained using the perturbation technique for small values of viscous dissipation parameters $\xi$ and compared to the finite difference solutions for 0 · $\xi$ · 1. Effect of viscous dissipation and temperature stratification are also shown on the velocity and temperature distributions in the boundary layer region.

Natural convection from a vertical plate embedded in a stratified medium with uniform heat source

Natural convection flow from an isothermal vertical plate with uniform heat source embedded in a stratified medium has been discussed in this paper. The resulting momentum and energy equations of boundary layer approximation are made non-similar by introducing the usual non-similarity transformations. Numerical solutions of these equations are obtained by an implicit finite difference method for a wide range of the stratification parameter, X. The solutions are also obtained for different values of pertinent parameters, namely, the Prandtl number, Pr and the heat generation or absorption parameter, λ and are expressed in terms of the local skin-friction and local heat transfer, which are shown in the graphical form. Effect of heat generation or absorption on the streamlines and isotherms are also shown graphically for different values of λ.

Prandtl number scaling of natural convection of an inclined flat plate due to uniform surface heat flux

A new scaling analysis has been performed for the unsteady natural convection boundary layer under a downward facing inclined plate with uniform heat flux. The development of the thermal or viscous boundary layers may be classified into three distinct stages including a start-up stage, a transitional stage and a steady stage, which can be clearly identified in the analytical as well as numerical results. Earlier scaling shows that the existing scaling laws of the boundary layer thickness, velocity and steady state time scale for the natural convection flow on a heated plate of uniform heat flux provide a very poor prediction of the Prandtl number dependency of the flow. However, those scalings performed very well with Rayleigh number and aspect ratio dependency. In this study, a new Prandtl number scaling has been developed using a triple-layer integral approach for Pr > 1. It is seen that in comparison to the direct numerical simulations, the new scaling performs considerably better than the previous scaling.

Natural convection in a triangular enclosure due to non-uniform cooling on top

Natural convection in a triangular enclosure subject to non-uniformly cooling at the inclined surfaces and uniformly heating at the base is investigated numerically. The numerical simulations of the unsteady flows over a range of Rayleigh numbers and aspect ratios are carried out using Finite Volume Method. Since the upper surface is cooled and the bottom surface is heated, the air flow in the enclosure is potentially unstable to Rayleigh Benard instability. It is revealed that the transient flow development in the enclosure can be classified into three distinct stages; an early stage, a transitional stage and a steady stage. It is also found that the flow inside the enclosure strongly depends on the governing parameters, Rayleigh number and aspect ratio. The asymmetric behaviour of the flow about the geometric centre line is discussed in detailed. The heat transfer through the roof and the ceiling as a form of Nusselt number is also reported in this study.

Practice and procedure : an application under r367 of the Uniform Civil Procedure Rules may be of use in obtaining copies of otherwise unavailable documents held by government agencies.

In Bowenbrae Pty Ltd v Flying Fighters Maintenance and Restoration [2010] QDC 347 Reid DCJ made orders requiring the plaintiffs to make application under the Freedom of Information Act 1982 (Cth) (“the FOI Act”) for documents sought by the defendant.

Scaling for the Prandtl number of the natural convection boundary layer of an inclined flat plate under uniform surface heat flux

An improved scaling analysis and direct numerical simulations are performed for the unsteady natural convection boundary layer adjacent to a downward facing inclined plate with uniform heat flux. The development of the thermal or viscous boundary layers may be classified into three distinct stages: a start-up stage, a transitional stage and a steady stage, which can be clearly identified in the analytical as well as the numerical results. Previous scaling shows that the existing scaling laws of the boundary layer thickness, velocity and steady state time scale for the natural convection flow on a heated plate of uniform heat flux provide a very poor prediction of the Prandtl number dependency of the flow. However, those scalings perform very well with Rayleigh number and aspect ratio dependency. In this study, a modified Prandtl number scaling is developed using a triple layer integral approach for Pr > 1. It is seen that in comparison to the direct numerical simulations, the modified scaling performs considerably better than the previous scaling.

Natural convection in a triangular enclosure due to non-uniform cooling on top

Natural convection in a triangular enclosure subject to non-uniformly cooling at the inclined surfaces and uniformly heating at the base is investigated numerically. The numerical simulations of the unsteady flows over a range of Rayleigh numbers and aspect ratios are carried out using Finite Volume Method. Since the upper surface is cooled and the bottom surface is heated, the air flow in the enclosure is potentially unstable to Rayleigh Benard instability. It is revealed that the transient flow development in the enclosure can be classified into three distinct stages; an early stage, a transitional stage and a steady stage. It is also found that the flow inside the enclosure strongly depends on the governing parameters; Rayleigh number and aspect ratio. The asymmetric behaviour of the flow about the geometric centre line is discussed in detailed. The heat transfer through the roof and the ceiling as a form of Nusselt number is also reported in this study.