410 research outputs found
Impact of age and race on outcomes of a program to prevent excess weight gain and disordered eating in adolescent girls
Interpersonal psychotherapy (IPT) prevents weight gain and reduces loss-of-control (LOC)-eating in adults. However, IPT was not superior to health-education (HE) for preventing excess weight gain and reducing LOC-eating over 1-year in adolescent girls at risk for excess weight gain and eating disorders. Limited data suggest that older and non-White youth may be especially responsive to IPT. In secondary analyses, we examined if age or race moderated weight and LOC-eating outcomes. The 113 participants (12–17 years; 56.6% White) from the original trial were re-contacted 3 years later for assessment. At baseline and follow-up visits through 3 years, we assessed BMI, adiposity by dual energy X-ray absorptiometry, and LOC-eating presence. In linear mixed models, baseline age moderated 3-year BMI outcome; older girls in IPT had the lowest 3-year BMI gain compared to younger girls in IPT and all girls in HE, p = 0.04. A similar pattern was observed for adiposity. Race moderated 3-year LOC-eating; non-White girls in IPT were most likely to abstain from LOC-eating at 3 years compared to all other girls, p = 0.04. This hypothesis-generating analysis suggests future studies should determine if IPT is especially efficacious at reducing LOC-eating in older, non-White adolescents
An Overview and Evaluation: Computer Software to Aid Students in Prewriting, Writing, and Revision
The research on computer software to aid inexperienced writers was done from May, 1990 through August, 1990, and involved examining software that would help students improve their writing. The softwares also were evaluated according to their value for use in computer assisted writing classes. The project had three objectives: 1) to evaluate software designed to aid the writer in the pre-writing, writing, and revising stages; 2) to identify the components of this type of software; 3) to recommend software for the beginning academic writer
Mindfulness in schools: a health promotion approach to improving adolescent mental health.
Between 10 and 20% of adolescents worldwide experience a mental health problem within a given 12-month period. Mental health problems impact on an adolescent’s potential to live a fulfilling and productive life and lead to challenges such as stigma, isolation and discrimination. To address this need, in recent years, there has been growing interest into broad-based school-integrated health promotion interventions that seek to build resilience and augment protective factors in adolescents. Mindfulness-based interventions (MBIs) reflect one such approach that have been administered to adolescent populations in both resilience building and treatment contexts. This paper discusses the utility of school-based MBIs as an adolescent health promotion approach and makes recommendations for intervention design, delivery and evaluation. Emerging evidence indicates that school-integrated MBIs may be a cost-effective means of not only meeting government objectives relating to adolescent mental health, but also for improving the wellbeing of teachers and parents. Furthermore, there is growing evidence indicating that mindfulness can elicit improvements in student learning performance and general classroom behaviour. However, notwithstanding these beneficial properties, there remains a need to conduct large-scale empirical investigations that seek to evaluate the effectiveness of school-integrated MBIs at a regional or national level. A further challenge is the need to ensure that mindfulness instructors are able to impart to adolescents an experiential understanding of this ancient contemplative technique.N
A Comparative Analysis Of The On-Campus And Off-Campus Student Teaching Programs In The Elementary Schools At Appalachian State Teachers College
The problem undertaken in this study was to compare the on-campus and off-campus student teaching patterns at Appalachian State Teachers College with respect to the degree to which the students enrolled in the two student teaching patterns attained the objectives of the student teaching program
Can it be harmful for parents to talk to their child about their weight? A meta-analysis
Many parents express concern that raising the issue of weight risks harming their child's physical self-perceptions and wellbeing. Such concerns can deter families from engaging with weight management services. This systematic review aimed to investigate the evidence behind these concerns by analysing the association between parent-child weight-talk and child wellbeing. A systematic search of eight databases identified four intervention studies and 38 associative studies. Meta-analysis was only possible for the associative studies; to facilitate more meaningful comparisons, weight-talk was categorized into four communication types and effect size estimates for the association between these and wellbeing indicators were calculated through a random effects model. Encouraging children to lose weight and criticizing weight were associated with poorer physical self-perceptions and greater dieting and dysfunctional eating (effect sizes: 0.20 to 0.47). Conversely, parental encouragement of healthy lifestyles without explicit reference to weight was associated with better wellbeing, but this was only measured in two studies. Of the four intervention studies, only one isolated the effects of parents' communication on wellbeing outcomes, reporting a positive effect. There was no effect of age on the strength of associations, but dysfunctional eating was more strongly associated with parent communication for girls than boys. The findings indicate that some forms of parent-child weight-talk are associated with poor wellbeing, but suggest that this is not inevitable. Encouraging healthy behaviours without reference to weight-control, and positive parental involvement in acknowledging and addressing weight-concern may avoid such outcomes. More longitudinal research is needed to analyse the direction of these effects
Diseño de una máquina roladora para el Distrito de Pichanaki
El objetivo principal de la presente investigación comprende el diseño de una máquina roladora para el distrito de Pichanaki, provincia de Chanchamayo, departamento de Junín. En la presente investigación se realiza una selección
adecuada del material (base soporte, soporte de los rodillos), cuenta con un sistema motriz (tres rodillos), un sistema hidráulico y un motor eléctrico. Este diseño se realiza para planchas comerciales de 1200 mm x 2400 mm y un espesor máximo de 5,9 mm, en tubos un diámetro nominal de ½ “hasta 3” y un espesor mínimo de 1,8 mm y un máximo de 2,5 mm, un torque de acuerdo a la necesidad que se presenta en el distrito de Pichanaki.
La metodología que se ha empleado en el desarrollo de la presente tesis es el sistémico, debido a que se realizó el análisis de todos los componentes específicos su inter e intra relación, y la metodología de diseño propuesta para el diseño de la máquina roladora es la metodología de diseño basado en la norma VDI 2221 comprendido en sus siete etapas, teniendo el proyecto definitivo de acuerdo a la evaluación.
Los resultados obtenidos en los cálculos (diámetro) se corroboró con el software SolidWorks 2013; el factor de seguridad mínimo obtenido en la simulación del rodillo superior e inferior (FDS 3,49 y 3,57 respectivamente), comprueba los diámetros obtenidos en los cálculos de los rodillos en mención. De igual manera se realizó la comprobación de los rodamientos seleccionados en el software SolidWorks 2013 la cual indica una vida útil de 16 168 horas para el rodamiento del rodillo superior y 15 413 horas para el rodamiento del rodillo inferior.
En la parte final de la presente investigación cuenta con planos de fabricación y montaje, se recomienda utilizarlos en algunos capítulos que presenta el textoTesi
One-Year Follow-Up of a Randomized Controlled Trial Piloting a Mindfulness-Based Group Intervention for Adolescent Insulin Resistance
IntroductionTo explore if a brief mindfulness-based intervention (MBI) leads to sustained, improved clinical outcomes in adolescents at-risk for type 2 diabetes (T2D).MethodsParticipants were 12–17y girls with overweight/obesity, elevated depression symptoms, and T2D family history participating in a randomized, controlled pilot trial of a six-session MBI vs. cognitive-behavioral therapy (CBT) group. At baseline and 1-year, mindfulness, depression, insulin resistance (IR), and body composition were assessed with validated instruments.ResultsOne-year retention was 71% (n = 12) in MBI; 81% (n = 13) in CBT. At 1-year, depression decreased (Cohen’s d = 0.68) and IR decreased (d = 0.73) in adolescents randomized to MBI compared to those in CBT. There were no significant between-condition differences in mindfulness, adiposity, or BMI.DiscussionOne-year outcomes from this randomized, controlled pilot trial suggest that brief MBI may reduce depression and IR in at-risk adolescents. Replication and exploration of mechanisms within the context of a larger clinical trial are necessary.Clinical Trial Registrationwww.ClinicalTrials.gov, identifier NCT02218138
Prevention of insulin resistance in adolescents at risk for type 2 diabetes with depressive symptoms: 1-year follow-up of a randomized trial
Background: Depression is associated with poor insulin sensitivity. We evaluated the long-term effects of a cognitive behavioral therapy (CBT) program for prevention of depression on insulin sensitivity in adolescents at risk for type 2 diabetes (T2D) with depressive symptoms.
Methods: One-hundred nineteen adolescent females with overweight/obesity,T2Dfamily history, and mild-to-moderate depressive symptoms were randomized to a 6-week CBT group (n = 61) or 6-week health education (HE) control group (n = 58). At baseline, posttreatment, and 1 year, depressive symptoms were assessed, and whole body insulin sensitivity (WBISI) was estimated from oral glucose tolerance tests.Dual energy X-ray absorptiometry assessed fat mass at baseline and 1 year. Primary outcomes were 1-year changes in depression and insulin sensitivity, adjusting for adiposity and other relevant covariates. Secondary outcomeswere fasting and 2-hr insulin and glucose.We also evaluated the moderating effect of baseline depressive symptom severity.
Results: Depressive symptoms decreased in both groups (P \u3c .001). Insulin sensitivity was stable inCBTandHE(ΔWBISI: .1 vs. .3) and did not differ between groups (P=.63).However, among girls with greater (moderate) baseline depressive symptoms (N = 78), those in CBT developed lower 2- hr insulin than those in HE (Δ-16 vs. 16 �IU/mL, P \u3c .05). Additional metabolic benefits of CBT were seen for this subgroup in post hoc analyses of posttreatment to 1-year change.
Conclusions: Adolescent females at risk for T2D decreased depressive symptoms and stabilized insulin sensitivity 1 year following brief CBT or HE. Further studies are required to determine if adolescents with moderate depression show metabolic benefits after CBT
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