Use of the multi-theory model (MTM) in explaining initiation and sustenance of indoor tanning cessation among college students.

Skin cancer, including melanoma, is the most common cancer worldwide and a significant public health concern. A significant risk factor for melanoma is through increased exposure to ultraviolet (UV) radiation through the use of indoor tanning beds. Although rates of indoor tanning bed use have decreased in recent years, young adults, particularly White, college-age women, comprise the majority of indoor tanning bed users in the United States. The purpose of this cross-sectional study was to explore and explain the initiation and sustenance of indoor tanning cessation among college students using the multi-theory model (MTM) of health behavior change. Data were collected from 254 college students who reported current indoor tanning use using a validated 46-item survey to assess demographics and the MTM constructs. Data were analyzed using multiple linear regression to determine the ability of the MTM constructs to predict the initiation and sustenance of indoor tanning cessation. For initiation of indoor tanning cessation, participatory dialogue: advantages (B = 0.038, p = 0.001), behavioral confidence (B = 0.129, p < 0.001) and changes in the physical environment (B = 0.088, p < 0.001) were significantly associated with indoor tanning cessation following covariate adjustment. For sustenance, only emotional transformation (B = 0.140, p < 0.001) demonstrated a significant relationship with indoor tanning cessation, following adjustment. Findings from this study demonstrate the utility of the MTM in explaining indoor tanning cessation and designing intervention strategies and clinical recommendations to encourage indoor tanning cessation among college students.

Vivências de trabalho precoce de adolescentes em medida socioeducativa / Experience of child labor of adolescents complying with a social-educational measure / Vivencias de trabajo infantil de adolescentes en medidas socioeducativas

Este artigo tem como objetivo analisar a vivência de trabalho precoce de adolescentes e jovens em cumprimento de medida socioeducativa, no estado da Paraíba. Os instrumentos utilizados foram um Questionário Mosquito Diagnóstico e uma Entrevista Semiestruturada. A análise foi realizada com o software Iramuteq, (Interface de R pour les Analyses Multidimensionnelles de Textes et de Questionnaires), através da Análise Hierárquica Descendente, que gerou seis classes: significado do trabalho; infância e escola; condições objetivas de vida; trabalho, drogas e ato infracional; consequências do trabalho infantil; e trabalho infantojuvenil. A perspectiva teórica utilizada foi a psicologia histórico-cultural e os dados discutidos a partir do conceito de vivência. Conclui-se que as vivências e situações sociais de desenvolvimento foram caracterizadas pelo trabalho precoce que oportunizou o envolvimento com atos infracionais e as instituições responsáveis pela garantia de direitos em vez de garantir a proteção social, criminalizaram por meio de medidas socioeducativas.(AU)

This article aims to analyze the experience of child labor of adolescents and youngsters that are complying a social-educational measure, in the State of Paraíba. The instruments utilized were a Questionnaire Mosquito Diagnóstico and a Semi-Structured Interview. The analysis was performed by using the Iramuteq software (Interface de R pour les Analyses Multidimensionnelles de Textes et de Questionnaires), by using Descending Hierarchical Analysis, which generated six classes: meaning of labor; childhood and school; objective conditions of life; labor, drugs, and act of infraction; consequences of child labor; and child labor. The theoretical perspective used was historical-cultural psychology and the data were discussed from the concept of experience. It was concluded that the experiences and social situations of development were characterized by child labor, which enabled the involvement with acts of infraction; and the institutions responsible for guaranteeing rights, instead of guaranteeing social protection, criminalized by using social-educational measures.(AU)

Este artículo tiene como objetivo analizar la vivencia precoz de adolescentes y jóvenes que cumplen medidas socioeducativas en el estado de Paraíba (Brasil). Los instrumentos utilizados fueron un Cuestionario Mosquito Diagnóstico y una entrevista semiestructurada. El análisis se realizó con el software Iramuteq (Interface de R pour les Multidimensionnelles Analyzes de Textes et de Questionnaires), mediante análisis jerárquico descendente, que generó seis clases: Significado del trabajo; Infancia y escuela; Condiciones objetivas de vida; Trabajo, drogas y acto de infracción; Consecuencias del trabajo infantil; y Trabajo infantojuvenil. La perspectiva teórica que se utilizó fue la psicología histórico-cultural, y los datos se discutieron desde el concepto de vivencia. Se concluye que las vivencias y situaciones sociales de desarrollo se caracterizaron por trabajo infantil que permitió la participación en infracciones y que las instituciones responsables de garantizar los derechos en lugar de la protección social los criminalizaron mediante medidas socioeducativas.(AU)

Highly sensitive determination of cancer toxic mercury ions in biological and human sustenance samples based on green and robust synthesized stannic oxide nanoparticles decorated reduced graphene oxide sheets.

This work proposes the conventional sonochemical synthesis of nanoparticles of tin (IV) oxide on reduced graphene oxide (rGOS@SnO2) influencing the formation of a composite with enhanced properties. The combination of SnO2 nanoparticles with rGOS weakens the accumulation in layered structures of the latter system, which leads to better exposure of SnO2 active sites and thus increases the conductivity of rGOS@SnO2 composite. This validates the improved electro-catalytic activity of the composite based on previous reports for its successful utilization in the electrochemical determination of toxic contaminants. The quantitative determination of mercury ions, through the use of the electrochemical sensor based on rGOS@SnO2 manifests several advantages such as simple operator, promptness, cost effectiveness and time independency when compared to other traditional techniques. The fabricated sensor displays two wide linear responses in the range of 0.25-705.3 µM for mercury ions, with a rapid response time about 1 s, and with a high sensitivity of 10.18 µA µM-1 cm-2 under optimized conditions. The accumulation of traces of mercury in the bodies of fish in the marine eco system marks the significance of its detection in real samples. The satisfactory results of the proposed sensor establish the supreme efficacy of layered nanomaterials in conjunction with nanoparticles for the simple, rapid and efficient detection of pollutants in food and biological samples.