Comportamento elétrico e magnético da cerâmica Ni-Zn

Abstract

Introduction: Emotion regulation refers to use of strategies to change or suppress a response to an affective experience and is an important component of an individual's subjective wellbeing. Difficulties properly regulating emotions are related to psychopathological processes. Objective: This study assessed the factor structure of the Brazilian version of the Emotion Regulation Questionnaire (ERQ); the invariance of its psychometric parameters as a function of gender; and its convergent validity with other scales measuring affective processes. Method: A total of 813 adults (73.7% women), aged between 18 and 64 years and with a high educational level used an electronic platform to complete the ERQ, the Positive and Negative Affect Schedule (PANAS), the Affect Scale (AS), and the Difficulties in Emotion Regulation Scale (DERS). Factor structure, reliability, and validity of the adapted version of the ERQ were investigated. Results: Multi-group confirmatory factor analysis (MGCFA) revealed adequate goodness of fit for the ERQ's two-factor model (cognitive reappraisal and emotional suppression), providing evidence of invariance of its psychometric parameters as a function of gender. Correlations between the ERQ's factors and measures of affect and emotional dysregulation presented positive indicators, with significant associations between emotion regulation and affective experiences depending on gender. Conclusion:The ERQ presents good psychometric indicators for use with the Brazilian population.

Plastic behaviour of clay materials for the manufacture of fast-drying red ceramics

“…The coarser particles in the clay (i.e. non-clay materials and sand) facilitate various stages of the production process; thus, they are important to ensuring the quality of the red ceramics by promoting the fast-drying process (Oliveira, 2011). Common impurities in clays, such as quartz, reduce shrinkage because they are non-plastic materials (i.e.…”

“…Oliveira (2011) purposed the following classification of clays according to their PI: 0 < PI < 1: non-plastic clays 1 < PI < 7: low-plasticity clays 7 < PI < 15: moderate-plasticity clays PI > 15: high-plasticity clays However, Moreno-Maroto & Alonso-Azcárate (2018) introduced a new parameter to evaluate the plasticity of clays: the PI/LL ratio. Clays with a PI/LL ratio ≤ 0.33 can be considered low-plasticity clays, those with a PI/LL ratio < 0.33 and >0.5 are moderate-plasticity clays and those with a PI/LL ratio >0.5 are high-plasticity clays.…”

“…The plasticity classifications of the formulations studied according to Oliveira (2011) and Moreno-Maroto & Alonso-Azcárate (2018) are presented in Table 7. These classifications are very good indications of clay plasticity.…”

“…Clays with greater water contents could develop cracks during drying. Oliveira (2011) purposed the following classification of clays according to their PI:…”

Diagnóstico da indústria de cerâmica vermelha de São Roque do Canaã, ES

“…No Brasil contemporâneo, o mercado de cerâmicas tradicionais divide-se nos segmentos de (a) cerâmicas brancas como louças de mesa, louças sanitárias; (b) cerâmicas artísticas; (c) cerâmica de revestimento, que se enquadram as placas cerâmicas para azulejos e pisos e os porcelanatos, e as (d) cerâmicas vermelhas como telhas e blocos. Em linhas gerais são materiais produzidos a partir de processos semelhantes [13].…”