Comics as a body image intervention among adolescents in Indian Hindi medium schools: insights from an acceptability study.

Background: Indian adolescents experience body dissatisfaction. However, empirically supported interventions are lacking, particularly in lower socio-economic regions of India. This paper describes the acceptability testing of a six-session teacher-led comics-based intervention, aiming to improve body image and related outcomes among adolescents in Indian Hindi medium schools. Methods: Thirty-five students (50% girls; M age, girls = 12.3 years; M age, boys = 13 years) and nine teachers (11% women) from Hindi medium schools in Rajasthan, India, completed a quantitative acceptability questionnaire regarding comics that target body dissatisfaction and associated risk factors. They also participated in online or telephone semi-structured interviews to share in-depth feedback, with teachers providing additional feedback on an accompanying teacher guide. The quantitative data were analysed descriptively, with the interviews analysed using qualitative codebook thematic analysis. Results: Quantitative analyses revealed that 73% of students felt the comics made them feel good about themselves. Qualitative analyses revealed four themes: (1) body dissatisfaction is a concern; (2) the comics are powerful; (3) increasing ease of understanding; (4) a teacher guide to aid delivery. Conclusion: This study demonstrates acceptability of a novel teacher-led comics-based body image intervention for adolescents in Indian Hindi medium schools from lower socio-economic settings. These findings are currently informing intervention optimizations, which will be evaluated in a randomized controlled effectiveness trial. If found to be effective, this intervention will be disseminated across eight Indian states by UNICEF. Trial registration. This trial has been registered with ClinicalTrials.gov; a database of privately and publicly funded studies conducted around the world. Registration date: 2nd May 2020; Registration ID: (NCT04317755). https://clinicaltrials.gov/ct2/show/NCT04317755?term=NCT04317755&draw=2&rank=1.

Quantifying climate and management effects on regional crop yield and nitrogen leaching in the north china plain.

Better water and nitrogen (N) management requires better understanding of soil water and N balances and their effects on crop yield under various climate and soil conditions. In this study, the calibrated Root Zone Water Quality Model (RZWQM2) was used to assess crop yield and N leaching under current and alternative management practices in a double-cropped wheat ( L.) and maize ( L.) system under long-term weather conditions (1970-2009) for dominant soil types at 15 locations in the North China Plain. The results provided quantitative long-term variation of deep seepage and N leaching at these locations, which strengthened the existing qualitative knowledge for site-specific management of water and N. In general, the current management practices showed high residual soil N and N leaching in the region, with the amounts varying between crops and from location to location and from year to year. Seasonal rainfall explained 39 to 84% of the variability in N leaching (1970-2009) in maize across locations, while for wheat, its relationship with N leaching was significant ( < 0.01) only at five locations. When N and/or irrigation inputs were reduced to 40 to 80% of their current levels, N leaching generally responded more to N rate than to irrigation, while the reverse was true for crop yield at most locations. Matching N input with crop requirements under limited water conditions helped achieve lower N leaching without considerable soil N accumulation. Based on the long-term simulation results and water resources availability in the region, it is recommended to irrigate at 60 to 80% of the current water levels and fertilize only at 40 to 60% of the current N rate to minimizing N leaching without compromising crop yield.

Modeling nitrogen and water management effects in a wheat-maize double-cropping system.

Excessive N and water use in agriculture causes environmental degradation and can potentially jeopardize the sustainability of the system. A field study was conducted from 2000 to 2002 to study the effects of four N treatments (0, 100, 200, and 300 kg N ha(-1) per crop) on a wheat (Triticum aestivum L.) and maize (Zea mays L.) double cropping system under 70 +/- 15% field capacity in the North China Plain (NCP). The root zone water quality model (RZWQM), with the crop estimation through resource and environment synthesis (CERES) plant growth modules incorporated, was evaluated for its simulation of crop production, soil water, and N leaching in the double cropping system. Soil water content, biomass, and grain yield were better simulated with normalized root mean square errors (NRMSE, RMSE divided by mean observed value) from 0.11 to 0.15 than soil NO(3)-N and plant N uptake that had NRMSE from 0.19 to 0.43 across these treatments. The long-term simulation with historical weather data showed that, at 200 kg N ha(-1) per crop application rate, auto-irrigation triggered at 50% of the field capacity and recharged to 60% field capacity in the 0- to 50-cm soil profile were adequate for obtaining acceptable yield levels in this intensified double cropping system. Results also showed potential savings of more than 30% of the current N application rates per crop from 300 to 200 kg N ha(-1), which could reduce about 60% of the N leaching without compromising crop yields.

Simulating nitrate drainage losses from a Walnut Creek watershed field.

This study was designed to evaluate the improved version of the Root Zone Water Quality Model (RZWQM) using 6 yr (1992-1997) of field-measured data from a field within Walnut Creek watershed located in central Iowa. Measured data included subsurface drainage flows, NO3-N concentrations and loads in subsurface drainage water, and corn (Zea mays L.) and soybean [Glycine mar (L.) Merr.] yields. The dominant soil within this field was Webster (fine-loamy, mixed, superactive, mesic Typic Endoaquolls) and cropping system was corn-soybean rotation. The model was calibrated with 1992 data and was validated with 1993 to 1997 data. Simulations of subsurface drainage flow closely matched observed data showing model efficiency of 99% (EF = 0.99), and difference (D) of 1% between measured and predicted data. The model simulated NO3-N losses with subsurface drainage water reasonably well with EF = 0.8 and D = 13%. The simulated corn grain yields were in close agreement with measured data with D < 10%. Nitrogen-scenario simulations demonstrated that corn yield response function reached a plateau when N-application rate exceeded 90 kg ha(-1). Fraction of applied N lost with subsurface drainage water varied from 7 to 16% when N-application rate varied from 30 to 180 kg ha(-1) after accounting for the nitrate loss with no-fertilizer application. These results indicate that the RZWQM has the potential to simulate the impact of N application rates on corn yields and NO3-N losses with subsurface drainage flows for agricultural fields in central Iowa.

Cardiovascular reactivity to cold pressor test in offspring of normotensive & hypertensive parents.

A study was undertaken to assess the potential hypertensive status of the offspring of normotensive and hypertensive parents. The volunteers were divided into two groups based on the family history of hypertension. Heart rate and blood pressure recordings were made before and after the cold pressor test. Higher basal values of blood pressure and a significant rise in systolic and diastolic blood pressure in the offspring of hypertensive parents were observed indicating that they have an increased cardiovascular reactivity which was attributed to increased sympathetic activity. Excretion of urinary catecholamines was also found to be significantly higher in about 33 per cent of the offspring of hypertensive parents.