Abstract Studies concerning parenting styles and disciplinary practices have shown a relationship between both factors and bullying involvement in adolescence. The scarce available evidence suggests ...that abusive disciplinary practices increase teenagers’ vulnerability to abuse in school or the likelihood of them becoming abusers of their peers in the same context. However, there is a lack of knowledge about the indirect effect of parenting styles in adolescents’ bullying involvement through disciplinary practices, although a relationship between parenting styles and disciplinary practices has been shown. The aim of this research was to determine the mediating role of punitive parental discipline (physical punishment and psychological aggression) between the dimensions of parents’ parenting styles and their children's involvement in bullying victimization and aggression. We used a sample comprising 2060 Spanish high school students (47.9% girls; mean age = 14.34). Structural equation modeling was performed to analyze the data. The results confirmed the mediating role of parental discipline between the parenting practices analyzed and students’ aggression and victimization. Significant gender-related differences were found for aggression involvement, where boys were for the most part linked to psychological aggression disciplinary practices and girls to physical punishment. Victimization directly correlated with parental psychological aggression discipline behavior across both sexes. In conclusion, the results seem to suggest that non-democratic parenting styles favor the use of punitive discipline, which increases the risk of adolescents’ bullying involvement. Therefore, intervention programs must involve parents to make them aware about the important role they play in this process and to improve their parenting styles.
The psychometric properties of the Spanish version of the Parental Stress Scale (PSS) scale have not been verified on the Spanish population. Similarly, the literature on gender differences and ...parental stress is inconclusive, and there is little evidence of their relationship with life satisfaction. To analyze the psychometric properties of the Spanish version of the PSS scale, (2) to examine possible gender differences, and (3) to study the relationship between parental stress (PS) and parental rewards (PR) and satisfaction with life (SWL) attending to the possible moderating effect of gender. These objectives were examined in samples comprising Social Services Users (SSU) (N = 525; 78.3% female; Mage = 38.3) and non‐SSU users (N = 421; 41.1% male; Mage = 37.08). A CFA corroborated a two‐factor structure: PS and PR. In the SSU sample, mothers showed higher PS and lower PR. However, PR was also higher in mothers from the non‐SSU sample compared to fathers. PR and PS were directly related to SWL in the SSU sample. However, gender moderated the relationship between PR and SWL in the non‐SSU sample in the case of mothers. The results are discussed considering gender roles and the characteristics of both samples.
The synthesis of glycerol carbonate from glycerol and dimethyl carbonate by transesterification is reported. Basic catalysts work much better than acidic ones. Catalytic activity is strongly ...dependent on base strength. After a catalyst screening study, CaO was selected as catalyst. Following an optimization study a ∼100% conversion and a 95% yield were achieved in 90
min at 95
°C, 0.06 catalyst:glycerol molar ratio and 3.5 dimethyl carbonate:glycerol molar ratio.
The synthesis of glycerol carbonate from glycerol and dimethyl carbonate by transesterification is reported. Firstly, a catalyst screening has been performed by studying the influence of different basic and acid homogeneous and heterogeneous catalysts on reaction results. Catalytic activity is extremely low for acidic catalysts indicating that reaction rate is very slow. On the contrary, high conversions and yields are obtained for basic catalysts. Catalytic activity increases with catalyst basic strength. The best heterogeneous catalyst is CaO. Calcination of CaO increases dramatically its activity due to calcium hydroxide removal from its surface. A reaction optimization study has been carried out with CaO as catalyst by using a factorial design of experiments leading to operation conditions for achieving a 100% conversion and a >95% yield at 1.5
h reaction time: 95
°C, catalyst/glycerol molar ratio
=
0.06 and dimethyl carbonate/glycerol molar ratio
=
3.5. Carbonate glycerol can be easily isolated by filtering the catalyst out and evaporating the filtrate at vacuum. Leaching of catalyst in reaction medium was lower than 0.34%. Catalyst recycling leads to a quick decrease in both conversions and yields probably due to a combination of catalyst deactivation by CaO exposure to air between catalytic runs, and a decrease in the catalyst surface area available for reaction due to particle agglomeration.
The synthesis of lactic acid by alkaline hydrothermal conversion of glycerol at high glycerol concentrations under autogenous pressure is described. Temperature (250−290 °C), NaOH/glycerol molar ...ratio (1.1−1.75), glycerol concentration (2.5−3.5 M), and reaction time (30−250 min) have been the variables studied with temperature and NaOH/glycerol molar ratio having the major influence. An 84.5% lactic acid (as sodium lactate) yield is obtained at 280 °C and 90 min with a 2.5 M glycerol concentration and a 1.1 NaOH/glycerol molar ratio. The same yield is obtained starting from crude glycerol from biodiesel production as raw material. Sodium acrylate, oxalate and formate, and sodium carbonate have been identified as the main byproducts with carbonate being the major one. Several conversion routes based on the experimental results are proposed. A process for lactic acid separation based on electrodialysis is outlined.
El Tribunal debe resolver sobre la constitucionalidad de la orden de ingreso hospitalario de una gestante para el control de la etapa final del embarazo y, en su caso, la inducción del parto, a razón ...de un aumento del riesgo de muerte fetal intrauterina. Se trata de una decisión contraria a su voluntad de llevar a cabo un parto domiciliario. Este contexto pone de manifiesto la existencia de un conflicto entre los derechos fundamentales de la mujer a la libertad personal y a la intimidad personal y familiar y de un bien constitucionalmente protegido, la vida y la salud del nasciturus. Su solución resulta en la limitación de los derechos de la gestante, aun sin haberle otorgado trámite de audiencia. Ello recibe el respaldo del Tribunal Constitucional por tratarse de una medida con fundamento legal, proporcional al fin de protección perseguido y justificada en una situación de extrema urgencia.
The first objective of this study was to adapt and test the psychometric properties of the Social Achievement Goal Scale (Ryan & Shim, 2006) in Spanish adolescent students. The second objective ...sought to analyse the influence of social goals, normative adjustment and self-perception of social efficacy on social adjustment among peers.
A total of 492 adolescents (54.1% females) attending secondary school (12-17 years; M = 13.8, SD = 1.16) participated in the study. Confirmatory factor analysis and structural equation modelling were performed.
The validation confirmed the three-factor structure of the original scale: social development goals, social demonstration-approach goals and social demonstration-avoidance goals. The structural equation model indicated that social development goals and normative adjustment have a direct bearing on social adjustment, whereas the social demonstration-approach goals (popularity) and self-perception of social efficacy with peers and teachers exert an indirect influence.
The Spanish version of the Social Achievement Goal Scale (Ryan & Shim, 2006) yielded optimal psychometric properties. Having a positive motivational pattern, engaging in norm-adjusted behaviours and perceiving social efficacy with peers is essential to improving the quality of interpersonal relationships.
There is extensive scientific evidence of the serious psychological and social effects that peer victimization may have on students, among them internalizing problems such as anxiety or negative ...self-esteem, difficulties related to low self-efficacy and lower levels of social adjustment. Although a direct relationship has been observed between victimization and these effects, it has not yet been analyzed whether there is a relationship of interdependence between all these measures of psychosocial adjustment. The aim of this study was to examine the relationship between victimization and difficulties related to social adjustment among high school students. To do so, various explanatory models were tested to determine whether psychological adjustment (negative self-esteem, social anxiety and social self-efficacy) could play a mediating role in this relationship, as suggested by other studies on academic adjustment. The sample comprised 2060 Spanish high school students (47.9% girls; mean age = 14.34). The instruments used were the scale of victimization from
, the negative scale from
and a general item about social self-efficacy, all of them self-reports. Structural equation modeling was used to analyze the data. The results confirmed the partial mediating role of negative self-esteem, social anxiety and social self-efficacy between peer victimization and social adjustment and highlight the importance of empowering victimized students to improve their self-esteem and self-efficacy and prevent social anxiety. Such problems lead to the avoidance of social interactions and social reinforcement, thus making it difficult for these students to achieve adequate social adjustment.
Steel syndrome (STLS) encompasses characteristic facies, dwarfness, irreducible bilateral hip and radial head dislocation, and carpal bone coalition due to
COL27A1
mutations. Two consecutive ...pregnancies in a non-consanguineous couple were terminated because of severe fetal anomalies. Complete autopsies with microscopic exam were performed on both fetuses. Next-generation-based clinical exome sequencing was applied to the first fetus. Exome sequencing results, parental segregation, and affection of the second fetus were confirmed by Sanger sequencing. Both fetuses had signs consistent with STLS. Bilateral capitulum humeri absence explained radial head dislocation in STLS. Metaphyseal cartilage showed severe disorganization. Resting cartilage was hypercellular, organized in irregular nests limited by acellular matrix. Two variants in
COL27A1
(c.2548G>A -p.Gly850Arg- and c.3249+1G> T) were found in both fetuses in compound heterozygosity with parental Mendelian segregation. This is the first report to include histology of STLS. The
COL27A1
variants here described increase the number of mutations associated with STLS.
Abstract
The Treatment Programme for Families with Children in Andalusia is fundamentally aimed at promoting the integral development of children and adolescents through the strengthening of parental ...competences and family preservation strategies. In the last 20 years, this programme has been applied to over 75 000 families, involving about 150 000 children and adolescents. The aim of this study was to analyse the effects of this family intervention programme on the quality of life and behaviour problems of the children. This quasi‐experimental and longitudinal study had two non‐randomized groups (intervention group and comparison group) and two evaluation measures (pre‐treatment and post‐treatment). The intervention group was constituted by 297 families (540 children) who had participated in the programme. The comparison group consisted of 95 families (138 children) at a similar risk level, although these families had not participated in the programme. The results showed a significant improvement in the quality of life of the children of the families that belonged to the intervention group, which was significantly greater than the evolution detected in the children of the families that belonged to the comparison group. The results of efficacy and efficiency of this type of practice constitute a quality criterion of evidence‐based programmes and a requirement to maintain public investment.
The substitution of fossil resources by alternatives derived from biomass is a reality that is taking on a growing relevance in the chemical and energy industries. In this sense, fats, oils, and ...their derived products have become indispensable inputs due to their broad functional attributes, stable price and sustainable character. Acrylated vegetable oils are considered to be very versatile materials for very broad applications (such as in adhesives, coatings or inks) since, in the presence of photoinitiators, they can be polymerized by means of UV-initiated free radical polymerizations. The usual process for the synthesis of acrylate vegetable oils consists in reacting epoxidized oils derivatives with acrylic acid. Here, the influence of different catalysts on the activity and selectivity of the process of acrylation of epoxidized soybean oil is studied. In addition, a novel one-step method for direct acrylation of vegetable oils is also explored. This new approach advantageously uses the original vegetable resource and eliminates intermediate reactions, thus being more environmentally efficient. This study offers a simple and low-cost option for synthesizing a biomass-derived monomer and studies the potential for the 3D printing of complex structures via digital light processing (DLP) 3D printing of the thus-obtained novel sustainable formulations.
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