Depressive Symptoms in Mexican-Origin Adolescents: Interrelations Between School and Family Contexts

This study, as guided by cultural-ecological frameworks, examined multiple contextual stressors, including subjective economic hardship, acculturation, discrimination, and negative perceptions of school safety, as simultaneously linked to adolescents’ depressive symptoms, as well as the role of gender, familism values, family cohesion, and school connectedness on these associations. Data come from the Children of Immigrants Longitudinal Study (Portes and Rumbaut 2012) that included second-generation 8th- and 9th-grade children of foreign-born parents from the Mexican-origin subsample (n = 755; 52% male; time 1 M age = 14.20 years). Adolescents were either born in (60%) or immigrated prior to age 5 to the USA. Results of the regression analysis conducted via Mplus indicated that Mexican-origin female adolescents had higher levels of depressive symptoms at age 17. Subjective economic hardship, general discrimination, and negative perceptions of school safety were related to higher levels of depressive symptoms. Family cohesion was related to lower levels of depressive symptoms. Youth gender, familism values, family cohesion, and school connectedness were significant moderators. The present findings point to not only the harmful effects of subjective economic hardship, general discrimination, and negative perceptions of school safety on second-generation Mexican-origin adolescents’ mental health but also the significant protective role of school connectedness and family cohesion in promoting adolescents’ well-being. Implications for school psychology research and practice are discussed

Recovery Ventilation and Oxygen Debt-A Mathematical Model for the Prediction of Recovery Ventilation

A Mathematical model has been evolved for the estimation of recovery ventilation following an exercise. The model has been used to estimate recovery ventilation in moderate to heavy exercise for a period of 32 minutes. The model gives satisfactory predictions for persons of different age groups and under different environment conditions thus establishing its universal applicability

Caregiver Perceptions of Autism and Neurodevelopmental Disabilities in New Delhi, India

Evidence suggests that parenting an autistic child or a child with neurodevelopmental disabilities can be more challenging than parenting a child meeting their developmental milestones, especially when there is a dearth of support services, such as in low- and middle-income countries (LMICs). Despite the majority of the world’s children residing in LMICs, there are limited studies examining the understanding of developmental disorders and autism in these regions. We therefore aim to investigate perceptions of autism and developmental disabilities in caregivers of children in an urban setting in New Delhi, India. Thirteen semi-structured interviews with parents/caregivers of children were conducted in three groups: (1) caregivers with a child with a diagnosis of autism spectrum disorder (ASD); (2) caregivers with a child with a diagnosis of intellectual disability (ID); (3) and caregivers with children meeting their developmental milestones. Transcripts were analysed using framework analysis. Three themes on the impact of cultural and contextual factors on the recognition, interpretation, and reporting of autistic symptoms are discussed, and additional themes focus on the impact of diagnosis and family support. Our findings highlighted a vital need for greater community awareness and recognition of autism in India, for example through community and healthcare training, which may help to reduce stigma and facilitate wider family support

Simple model of adsorption on external surface of carbon nanotubes: a new analytical approach basing on molecular simulation data

Nitrogen adsorption on carbon nanotubes is wide- ly studied because nitrogen adsorption isotherm measurement is a standard method applied for porosity characterization. A further reason is that carbon nanotubes are potential adsorbents for separation of nitrogen from oxygen in air. The study presented here describes the results of GCMC simulations of nitrogen (three site model) adsorption on single and multi walled closed nanotubes. The results obtained are described by a new adsorption isotherm model proposed in this study. The model can be treated as the tube analogue of the GAB isotherm taking into account the lateral adsorbate-adsorbate interactions. We show that the model describes the simulated data satisfactorily. Next this new approach is applied for a description of experimental data measured on different commercially available (and characterized using HRTEM) carbon nanotubes. We show that generally a quite good fit is observed and therefore it is suggested that the observed mechanism of adsorption in the studied materials is mainly determined by adsorption on tubes separated at large distances, so the tubes behave almost independently