Subject(s)
COVID-19 , Humans , Pandemics/prevention & control , Biological Specimen Banks , Portugal/epidemiology , SARS-CoV-2ABSTRACT
This study evaluated the effect of hexamethyldisiloxane (HMDSO) plasma on the fabrics surface to produce masks. Samples of 400-thread count cotton fabric were used. The fabrics was covered with a layer of HMDSO employing plasma enhanced chemical vapor deposition. Optical Microscopy, helium ion beam microscopy (HIM) and atomic force microscopy (AFM) were used for topographic analysis. Fourier transformed infrared spectroscopy technique was used to analyze the chemical modifications on surface. The level of hydrophobicity was evaluated using contact angle measurements. To evaluate the effect of washing cycle on the plasma coating, a protocol proposed by the World Health Organization was used. All experiments were performed in triplicate. For the statistical analysis, the Mann-Whitney, Kruskal-Wallis and Dunn tests were used. AFM showed that, after HMDSO plasma coating, a layer of small granules agglomerated on the original surface of the fabric was visualized. The fabric, which initially had a 0° contact angle value, presented angles of 120o after the plasma coating. It was concluded that the use of cotton fabric coated with HMDSO plasma proved to be adequate for the manufacture of protective masks, since the coating made the surface hydrophobic and this property is maintained even after washing cycles.
ABSTRACT
This study compared children's and mothers' digital media use and mothers' mental health in two samples: one accessed before (Group 1; N = 257; M = 33.18 years; SD = 4.79) and the other accessed during (Group 2; N = 256; M = 33.51 years; SD = 4.96) the COVID-19 pandemic in Brazil. Mothers of children up to 3 years old (Group 1: M = 17.95 months, SD = 9.85; Group 2: M = 16.48 months, SD = 10.15) answered an online survey. Bivariate analysis, factorial ANOVA tests, and multiple linear regression were performed. Results suggest that mothers' and children's media use duration was higher during the pandemic only among children over 12 months. Mothers' media use duration (ß = .18) and mothers' intention to offer media (ß = .23) contributed to the explanation of children's media use duration (F(4, 474) = 16.81; p < .001; R2 = .12; R2 adjusted = .117). Higher mothers' common mental disorders symptoms were also positively correlated to mothers' intention to offer media to children both before and during the pandemic. Results suggest that interventions focusing on infants and toddlers screen time reduction should target maternal aspects such as mental health, maternal screen time, and intention to offer media, taking into account the mothers' needs when planning these actions.
Este estudio comparó el uso de los medios digitales por parte de los niños y las madres con la salud mental de las madres en dos grupos muestra: uno al cual se tuvo acceso antes (Grupo 1: N = 257; M = 33.18 años; SD = 4.79) y el otro al cual se tuvo acceso durante (Grupo 2; N = 256; M = 33.51 años; SD = 4.96) la pandemia del COVID-19 en Brasil. Las madres de niños de hasta tres años (Grupo 1: M = 17.95 meses, SD = 9.85; Grupo 2: M = 16.48 meses, SD = 10.15) respondieron una encuesta electrónica. Los análisis bivariados los exámenes factoriales ANOVA, así como múltiples regresiones lineales se llevaron a cabo. Los resultados indican que la duración de uso de los medios por parte de las madres y los niños fue más alta durante la pandemia sólo entre niños de más de 12 meses. La duración de uso de los medios por parte de las madres (ß = 0.18) y la intención de las madres de ofrecer los medios (ß = 0.23) contribuyeron a explicar la duración de uso de los medios por parte de los niños (F(4,474) = 16,81; p < .001; R2 = .12; R2 ajustado = .117). Más altos síntomas de trastornos mentales comunes en las madres se correlacionaron también positivamente con la intención de las madres de ofrecer los medios a los niños tanto antes como durante la pandemia. Los resultados indican que las intervenciones enfocadas en reducir el tiempo frente a la pantalla de infantes y niños pequeñitos deben dirigirse a los aspectos maternos como la salud mental, el tiempo de la madre frente a la pantalla, así como la intención de ofrecer los medios, tomando en cuenta las necesidades de las madres cuando se planeen estas acciones.
Cette étude a comparé l'utilisation des médias numériques des enfants et des mères et la santé mentale des mères chez deux échantillons: l'un accédé avant la pandémie du Covid-19 (Groupe 1; N = 257; M = 33,18 ans; SD = 4,79) et l'autre accédé durant la pandémie du covid-19 (Groupe 2; N = 256; M = 33,51 ans; SD = 4,96) au Brésil. Les mères d'enfants jusqu'à l'âge de trois ans (Groupe 1: M = 17,95 mois, SD = 9,85; Groupe 2: M = 16,48 mois, SD = 10,15) ont répondu à un questionnaire en ligne. Une analyse à deux variables, des tests ANOVA factoriels, et une régression linéaire multiple ont été faits. Les résultats suggèrent que la durée de l'utilisation média des mères et des enfants a été plus élevée durant la pandémie uniquement pour les enfants de plus de 12 mois. La durée de l'utilisation média des mères (ß = 0,18) et l'intention des mères à offrir le média (ß = 0,23) a contribué à l'explication de la durée de l'utilisation média des enfants (F(4, 474) = 16,81; p <,001; R2 = ,12; R2 adjusté = ,117). Plus de symptômes communs de troubles mentaux des mères était aussi lié de manière positive à l'intention des mères d'offrir le média à la fois avant et durant la pandémie. Les résultats suggèrent que les interventions s'attachant à la réduction du temps d'écran des bébés et des petits enfants devraient cibler des aspects maternels comme la santé mentale, le temps d'écran maternel, et l'intention d'offrir le média, prenant en compte les besoins des mères en planifiant ces actions.
Subject(s)
COVID-19 , Pandemics , Child, Preschool , Female , Humans , Infant , Internet , Mental Health , Mother-Child Relations , Mothers , SARS-CoV-2ABSTRACT
COVID-19 pandemic has become a significant international public health problem. In addition to dealing with the pandemic's impact on mental health, parents need to cope with specific changes in their routines caused by social distance measures. This study aimed to investigate common mental disorders (CMD) symptoms in Brazilian parents during the COVID-19 pandemic and its associated factors. A total of 232 Brazilian parents ranging from 20 to 48 years old (M = 33.85; SD = 4.83) with children aged 1-36 months (M = 17.00; SD = 9,87) participated in an online survey. Parents answered a sociodemographic questionnaire, Self-Report Questionnaire (SRQ-20), Perceived Stress Scale (PSS-4), and Parenting Sense of Competence Scale. Chi-square tests, correlations, and multiple linear regression were performed. Results showed that parents' symptoms of CMD were negatively associated to perceived parental competence (ß =- 0.130; p = 0.011) and family income (ß =- 0.190; p = 0.024). Furthermore, perceived stress was the most related variable to parents' symptoms of CMD (ß = 0.618; p < 0.001), showing a positive association. The model explained 49.5% of the variation. Results suggest that lower family income may increase symptoms of CMD in Brazilian parents, which is a concern in a country of high social inequality. Parental sense of competence may be a relevant protective factor. Interventions targeting parental competence and stress reduction should be considered to address the mental health impacts of the pandemic.