Variability of clinical practice in the care of the second stage of labor among midwives in Spain.

BACKGROUND: There are recommendations based on scientific evidence on care in the second stage of labor, but it is not known to what degree the professionals comply with these recommendations. OBJECTIVE: The aim of this study is to examine the variability in clinical practices among midwives during the second stage of labor, including positions, mobility, practices, and the maximum time allowed before initiating active pushing, and to assess their adherence to clinical practice guidelines. METHODS: A cross-sectional observational study. A self-designed questionnaire was developed and distributed online through scientific societies. The main variables studied were professional and work environment characteristics, maternal positions and mobility, practices during this stage, maximum time to start active pushing and duration of the second stage of labor. Descriptive statistics were calculated using SPSS 24.0. RESULTS: Regarding the woman's position during childbirth, 80.3% (245) of midwives frequently or always allow the woman to choose her birthing position. Furthermore, 44.6% (136) of professionals prefer using side-lying positions for the mother. Regarding drinking fluids during childbirth, 51.1% (156) of midwives allowed the woman to drink the amount of liquids she wanted, whereas 11.1% (34) said that they would allow them to do so however, this was against the protocol of their hospital. When inquiring about the Kristeller maneuver, it was reported to be excessively performed in 35.1% (107) of cases for fetal bradycardia, 33.1% (101) for maternal exhaustion, and 38.4% (117) to avoid instrumental birth. Finally, a great variability was observed in the time criteria used for the initiation of active pushing and the maximum duration of the second stage of labor. CONCLUSIONS: Certain practices, such as the Kristeller maneuver, are overused among midwives, with great variability in the use of certain procedures, the waiting times to initiate pushing and completion of the second stage of labor. Further training and awareness campaigns are needed for professionals to apply evidence-based care.

Carboxylates as Nucleophiles in the Enantioselective Ring-Opening of Formylcyclopropanes under Iminium Ion Catalysis.

In this work, carboxylic acids, which are typically regarded as poor nucleophiles, are demonstrated to be competent reagents to promote the ring-opening of formylcyclopropanes after activation of the latter through iminium ion formation. Under optimized reaction conditions, a variety of γ-acyloxy-substituted aldehydes can be obtained in high yields and enantioselectivities through the desymmetrization of substituted meso-formylcyclopropanes in the presence of a chiral secondary amine as catalyst.

Midwives' approach to the prevention and repair of obstetric perineal trauma in Spain.

AIM: Different clinical practice guidelines include recommendations on how to prevent and repair obstetric perineal trauma, as well as the use of episiotomy. To evaluate the variability in midwives' professional practices for preventing and repairing perineal trauma, as well as the professional factors that may be associated with the restrictive use of episiotomy. DESIGN: Observational cross-sectional study. METHODS: Three hundred five midwives completed an anonymous questionnaire developed by the authors and distributed across various midwifery scientific societies. The main outcomes measured were the frequencies of adopting specific practices related to perineal injury prevention and repair, episiotomy technique and restrictive episiotomy use (<10%). Odds ratios (OR) and adjusted odds ratios (aOR) with 95% confidence intervals were estimated. RESULTS: Intrapartum perineal massage was not normally used by 253 (83%) of midwives, and 186 (61%) applied compresses soaked in warm water to the perineum. Regarding episiotomy, there was a great deal of variability, noting that 129 (42.3%) adopted a restrictive use of this procedure, 125 (41%) performed it between 10% and 20%, while 51 midwives (16.7%) performed it in more than 20% of cases. In addition, 165 (54.1%) midwives followed an incision angle of 60º. Concerning tears, 155 (50.8%) usually sutured first-degree tears and 273 (89.5%) always sutured second-degree tears. Midwives attending home births (aOR = 6.5; 95% CI: 2.69-15.69), working at a teaching hospital (aOR = 3.69; 95% CI: 1.39-9.84), and the ones who recently completed their professional training (aOR = 3.58; 95% CI: 1.46-8.79) were significantly more likely to adopt a restrictive use of episiotomy. CONCLUSIONS: There is a significant variability in Spanish midwives' practices for preventing and repairing perineal tears. Moreover, the restrictive use of episiotomy is associated with midwives attending home births, working in teaching hospitals and having recent professional training. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

The role of social support in school adjustment during Secondary Education.

BACKGROUND: During secondary education, a stage with a high risk of failure and school dropout, social support is an important contextual variable for the prevention of school maladjustment. The aim of this study is to examine a theoretical model of the explanatory capacity of social support in terms of school adjustment, understood as school engagement and perceived academic performance. METHOD: Participants were 1,468 students (51% girls; 49% boys) from the Basque Country, aged between 12 and 17 (M=14.03, SD=1.36). The study had an ex post facto cross-sectional design. The measurement instruments used were: TCMS -teacher support subscale, AFA-R -family support and peer support subscales, SEM -School Engagement Measure, and EBAE-10 - perceived academic performance subscale. Various different structural models were tested. RESULTS: The first-choice model was one in which social support predicts school engagement with perceived academic performance as a mediating variable: together, both variables predict 73% of school engagement. The strongest effect was that of teacher support, followed by family support, whereas friends were not found to have any direct effect on school adjustment variables. CONCLUSIONS: Teachers and families should strive to offer social support to students as a means of strengthening perceived academic self-efficacy and school engagement.

γ-Substituted Allenic Amides in the Phosphine-Catalyzed Enantioselective Higher Order Cycloaddition with Azaheptafulvenes.

Racemic γ-substituted allenes undergo enantioselective higher order [8 + 2]-cycloaddition with azaheptafulvenes using a chiral amino acid derived amidophosphine as catalyst, providing the corresponding azaazulenoid cycloadducts with excellent levels of regio-, diastereo-, and enantioselectivities. In this reaction, the activated allylic phosphonium ylide intermediate participates as the C2-component of the reaction, in contrast to the conventional reactivity of this type of zwitterionic intermediates as C3-components in cycloaddition reactions.

Sociometric Popularity, Perceived Peer Support, and Self-Concept in Adolescence.

The objective of this study is to analyze the role that peer support plays in the incidence relationships between sociometric popularity and general self-concept based on sociometer theory. A total of 676 randomly selected secondary school students from the Basque Country (49.6% boys and 50.4% girls) between 12 and 18 years of age (M = 14.32, DT = 1.36) participated voluntarily. All of them completed a sociometric questionnaire (SOCIOMET), the Family and Friends Support Questionnaire (AFA-R), and the Dimensional Self-concept Questionnaire (AUDIM-33). Several models of structural equations were tested. The results indicate that sociometric popularity is linked to self-concept through the perceived social support of peers. These results are discussed within the framework of positive psychology and its practical implications in the school context.

Resilience as a Mediator of Emotional Intelligence and Perceived Stress: A Cross-Country Study.

Existing literature provides evidence of the connection between emotional intelligence and resilience, both concepts being adversely related to perceived stress. Nevertheless, there is little evidence from cross-cultural and/or cross-country studies of the simultaneous relationship between these psychological variables. The objective of this study was to address this lack of research, examining the associations between emotional intelligence, resilience and perceived stress in a cross-country context. A total sample of 696 undergraduate students from two universities in the United States and the Basque Country (an autonomous community in northern Spain) participated in the study. Structural equation modeling was used to examine the effects of emotional intelligence and resilience that may affect students' perceived stress. The results revealed that emotional intelligence functions as a negative predictor of perceived stress through the mediating variable resilience for the American and Basque students. The findings suggest that university students with better emotional intelligence and resilience present lower perceived stress. Thus, improving emotional intelligence and resilience could prevent students from suffering perceived stress in higher education. Implications and directions for further research are discussed; in particular, it is highlighted that intervention programs that improve both EI and resilience could be helpful in reducing perceived stress.

La percepción de la socialización paterna y materna sobre la resiliencia de adolescentes / Paternal and maternal socialization perception on adolescent resilience

La relación con los progenitores es un aspecto clave en el desa-rrollo adolescente, pues el sentimiento de aceptación o rechazo por parte de estos se ha visto relacionado con el ajuste psicológico de la descenden-cia. A su vez, la resiliencia, habitualmente conceptualizada como capacidad para gestionar o adaptarse a los retos y la adversidad, resultaría fundamental para el ajuste en dicho periodo, caracterizado por numerosos cambios y re-tos simultáneos en distintos aspectos vitales. Por ello, el objetivo de este trabajo es analizar la capacidad predictiva de las dimensiones de socializa-ción parental afecto-comunicacióny crítica-rechazosobre la resiliencia adolescen-te. Método:Participan 899 adolescentes (50.4% mujeres) de entre 12 y 19 años (M= 14.68; DT= 1.73). Mediante regresiones lineales se analiza la capacidad predictiva de las dimensiones de socialización parental sobre la resiliencia filial. Resultados:Se comprueba que las dimensiones paternas, es-pecialmente la crítica-rechazo, resultan más significativas a la hora de predecir las puntuaciones en resiliencia. Discusión: Los resultados apuntan a la rele-vancia de la crítica-rechazo sentida por los y las adolescentes, especialmente en el caso de proceder del padre. Se discute la posible interpretación dife-rencial de los y las adolescentes de las dimensiones en función del sexo de los progenitores.(AU)

Parent-child relations are a key aspect in adolescent develop-ment, since feelings of parental acceptance or rejection have been found to be associated with teenagers’ psychological adjustment. Resilience, usually conceptualised as the ability to manage or adapt to challenges and adversi-ty, is a fundamental factor in adjustment during adolescence, a period characterised by numerous simultaneous changes and challenges in differ-ent aspects of life. The aim of the present study is therefore to analyse the predictive capacity of different dimensions of parental socialisation (affec-tion-communication and criticism-rejection) on adolescent resilience. Meth-od:Participants were 899 adolescents (50.4% female), aged 12 to19 years (M= 14.68; SD= 1.73). Linear regressions were performed to analyse the predictive capacity of the different dimensions of parental socialisation on adolescent resilience. Results:Paternal dimensions, especially paternal criti-cism-rejection, were revealed as relevant factors for predicting resilience scores. Discussion:The results point to the important impact of the criti-cism-rejection felt by adolescents, especially if perceived from the father. Different possible interpretations of these dimensions are discussed, in ac-cordance with whether they are perceived from the mother or the fathe.(AU)

Whether European eel leptocephali use the Earth's magnetic field to guide their migration remains an open question.

European eels (Anguilla anguilla) migrate between the southwestern Sargasso Sea and the European and Mediterranean coasts. In a recent paper in Current Biology, Naisbett-Jones et al.[1] claim to "provide the first evidence that they [eels] derive positional information from the Earth's magnetic field" and that this information guides their migration. The evidence reported by Naisbett-Jones et al.[1] in support of this conclusion was derived from eels collected in the Severn River (UK), approximately 50 km upstream of the estuary (i.e. not "in the Severn Estuary" as stated by the authors). Eels collected this far into rivers are benthic and fully adapted to freshwater; that is, they are late-stage glass eels (∼ 2 years old), not the pelagic leptocephalus (larval) life stage that actually undertakes the trans-Atlantic migration. The entire interpretive framework for the Naisbett-Jones et al.[1] study rests on the assumption that the behaviour of these late-stage freshwater glass eels, and their responses to magnetic fields, can be used as a proxy for the responses of eel leptocephali. The authors present no evidence in support of this key assumption.

Organocatalytic enantio- and diastereoselective synthesis of 3,5-disubstituted prolines.

The asymmetric synthesis of substituted pyrrolidines has been accomplished using a novel organocatalytic cyclization reaction promoted by a Cinchona alkaloid based primary amine. The reaction proceeds smoothly yielding pyrrolidine-2,2-dicarboxylates after in situ diastereoselective reduction with high levels of enantioselection. Furthermore, these adducts could be easily transformed into N-protected disubstituted prolines through the base-promoted diastereoselective C → N alkoxycarbonyl transfer reaction.

Validation of the Spanish Version of the School Engagement Measure (SEM).

The scientific study of school engagement has recently been the subject of considerable interest in the field of educational psychology, and significant advances have been made in our knowledge of this construct. For instance, there is currently consensus in the scientific community that it is multifaceted, and has three dimensions: behavioral engagement, emotional engagement, and cognitive engagement. However, more advanced statistical analyses are needed to validate Spanish-language measures of school engagement, which this study proposes to do. The sample was comprised of 1,250 adolescents from Basque Country (49% boys, 51% girls) aged 12 to 15 years old (M = 13.72, SD = 1.09). The results of confirmatory factor analysis on the School Engagement Measure (Fredricks, Blumenfeld, Friedel, & Paris, 2005) supported a three-dimensional structure of school engagement (χ2 (100) = 676.93, p < .001; GFI = .931; CFI = .906; IFI = .907; SRMR = .058; RMSEA = .068). Reliability indexes were satisfactory, ranging from .83 to .94. Adequate evidence of concurrent validity was found for the variable perceived school performance (p < .01). The results are discussed from an educational perspective, and with an eye to future research.

Contextual and psychological variables in a descriptive model of subjective well-being and school engagement.

Background/Objective: The objective of this ex post facto study is to analyze both the direct relationships between perceived social support, self-concept, resilience, subjective well-being and school engagement. Method: To achieve this, a battery of instruments was applied to 1,250 Compulsory Secondary Education students from the Basque Country (49% boys and 51% girls), aged between 12 and 15 years (M = 13.72, SD =1.09), randomly selected. We used a structural equation model to analyze the effects of perceived social support, self-concept and resilience on subjective well-being and school engagement. Results: The results provide evidence for the influence of the support of family, peer support and teacher support on self-concept. In addition, self-concept is shown as a mediating variable associated with resilience, subjective well-being and school engagement. Conclusions: We discuss the results in the context of positive psychology and their practical implications in the school context.

Antecedentes/Objetivo: El objetivo de este estudio ex post facto es analizar las relaciones entre apoyo social percibido, autoconcepto, resiliencia, bienestar subjetivo e implicación escolar. Método: Se aplicó una batería de instrumentos a 1.250 estudiantes de Educación Secundaria Obligatoria del País Vasco (49% chicos y 51% chicas), de entre 12 y 15 años (M = 13,72, DT =1,09), seleccionados aleatoriamente. Se sometió a prueba un modelo de ecuaciones estructurales para analizar los efectos del apoyo social percibido, el autoconcepto y la resiliencia sobre el bienestar subjetivo y la implicación escolar. Resultados: Los resultados aportan evidencias a favor de la influencia que ejercen el apoyo de la familia, el apoyo de los iguales y el apoyo del profesorado sobre el autoconcepto, que a su vez se muestra como variable mediadora asociada a la resiliencia, el bienestar subjetivo y la implicación escolar. Conclusiones: Se discuten los resultados obtenidos en el marco de la psicología positiva y sus implicaciones prácticas en el contexto escolar.

The role of social support in school adjustment during secondary education / El papel del apoyo social en el ajuste escolar en Educación Secundaria

BACKGROUND: During secondary education, a stage with a high risk of failure and school dropout, social support is an important contextual variable for the prevention of school maladjustment. The aim of this study is to examine a theoretical model of the explanatory capacity of social support in terms of school adjustment, understood as school engagement and perceived academic performance. METHOD: Participants were 1,468 students (51% girls; 49% boys) from the Basque Country, aged between 12 and 17 (M=14.03, SD=1.36). The study had an ex post facto cross-sectional design. The measurement instruments used were: TCMS -teacher support subscale, AFA-R -family support and peer support subscales, SEM -School Engagement Measure, and EBAE-10 - perceived academic performance subscale. Various different structural models were tested. RESULTS: The first-choice model was one in which social support predicts school engagement with perceived academic performance as a mediating variable: together, both variables predict 73% of school engagement. The strongest effect was that of teacher support, followed by family support, whereas friends were not found to have any direct effect on school adjustment variables. CONCLUSIONS: Teachers and families should strive to offer social support to students as a means of strengthening perceived academic self-efficacy and school engagement

ANTECEDENTES: durante la Educación Secundaria, etapa con riesgo de fracaso y abandono escolar, el apoyo social representa una variable contextual relevante para prevenir el desajuste escolar. El objetivo de este trabajo es examinar un modelo teórico sobre la capacidad explicativa del apoyo social sobre el ajuste escolar -implicación escolar y rendimiento académico percibido-. MÉTODO: participan 1.468 estudiantes (51% chicas; 49% chicos) con edades entre 12 y 17 años (M=14.03; DT=1.36) del País Vasco. Es un estudio con diseño ex post facto transversal. Las medidas empleadas son: TCMS -subescala apoyo profesorado-, AFA-R -subescalas apoyo familiar y apoyo amistades-, SEM -escala implicación escolar- y EBAE-10 -subescala rendimiento académico percibido-. Se comprueban varios modelos estructurales. RESULTADOS: el modelo de primera elección es el de predicción del apoyo social sobre la implicación escolar con el rendimiento académico percibido como variable mediadora: predicen conjuntamente un 73% de la implicación y prevalece el efecto del apoyo del profesorado, seguido del apoyo familiar, frente a la ausencia de efecto directo de amistades sobre las variables de ajuste escolar. CONCLUSIONES: el profesorado y la familia deben ofrecer apoyo social al alumnado para reforzar la percepción de autoeficacia académica y la implicación escolar

Fast and efficient benign oxidation of native wheat starch by acidic bromate under microwave activation.

A simple oxidation of starch in water by bromate was substantially improved by microwave activation. In the oxidation of native wheat starch its advantages were the highly reduced need of oxidant from 1.05 to 0.1-0.25 equiv, shortened reaction time from 2 to 5.5h to 10 min, and moderate or high yields of oxidation content (degree of oxidation 0.22-0.55) of water-soluble products. Acidic treatment before the oxidation reaction promoted the carbonyl formation yielding higher contents of oxidized products (degree of oxidation 0.43-0.55) than without it (degree of oxidation 0.22-0.28). The pretreatment did not have similar effect on the amount of carboxyl groups. The oxidation route of acidic bromate oxidation of starch is discussed.

El autoconcepto y el bienestar subjetivo en función del sexo y del nivel educativo en la adolescencia / Self-concept and subjective well-being based on gender and educational level in adolescence

Este estudio analiza las relaciones entre el autoconcepto y el bienestar subjetivo (satisfacción con la vida, afecto positivo y afecto negativo). Participaron 1.250 estudiantes de Educación Secundaria Obligatoria (media de edad=13.72, DT=1.09) seleccionados aleatoriamente. Se administraron los siguientes instrumentos de evaluación: el Cuestionario de Autoconcepto Dimensional (AUDIM), la Escala de Satisfacción con la Vida (SWLS) y la Escala de Balance Afectivo (EBA). Los resultados indican que los adolescentes con autoconcepto alto presentan puntuaciones significativamente más altas que sus iguales con autoconcepto bajo en satisfacción con la vida y afecto positivo y puntuaciones más bajas en afecto negativo. Este patrón de resultados es el mismo tanto para la muestra total como para las muestras en función del sexo y el nivel educativo

This study analyzes the relationships between self-concept and subjective well-being (satisfaction with life, positive affect, and negative affect). Participants were 1,250 students of secondary education (mean age=13.72, SD=1.09) randomly selected. Three assessment instruments were administered: the Dimensional Self-concept Questionnaire (AUDIM), the Satisfaction With Life Scale (SWL), and the Affect-Balance Scale (ABS). The results indicated that adolescents with high self-concept showed significantly higher scores in satisfaction with life and positive affect and lower scores in negative affect. This pattern of results was the same for the total sample and for gender and educational level groups

Bienestar subjetivo en la adolescencia: el papel de la resiliencia, el autoconcepto y el apoyo social percibido / Subjective well-being in adolescence: The role of resilience, self-concept and perceived social support

El objetivo del presente trabajo fue explorar las relaciones del bienestar subjetivo con resiliencia, autoconcepto y apoyo social, identificando variables predictoras del bienestar subjetivo. Se llevó a cabo un estudio ex post facto retrospectivo de tipo transversal. Se administraron la Escala de satisfacción con la vida (Diener, Emmon, Larsen, & Grifin, 1995), la Escala de balance afectivo (Bradburn, 1969), la Escala de resiliencia de Connor y Davidson (2003), el Cuestionario de autoconcepto multidimensional (Fernández-Zabala et al., 2015) y la Escala de apoyo familiar y de amigos (González & Landero, 2014). La muestra estaba configurada con 1250 adolescentes de 12 a 15 años (49% chicos y 51% chicas), seleccionados aleatoriamente. Los resultados confirmaron la existencia de relaciones entre bienestar subjetivo y las variables resiliencia, autoconcepto y apoyo social. Alto nivel de autoconcepto, resiliencia y apoyo familiar fueron predictores de satisfacción con la vida; alto nivel de resiliencia, autoconcepto y apoyo de las amistades, de afecto positivo; y bajo nivel de autoconcepto y apoyo familiar, de afecto negativo.

The purpose of this study was to examine the relationship of subjective well-being with resilience, self-concept and social support, determining variables that predict subjective well-being. The study used an ex post facto, observational and cross-sectional design, using the following scales: Satisfaction with Life (Diener, Emmon, Larsen, & Grifin, 1995), Affect-Balance (Bradburn, 1969), Connor-Davidson Resilience (Connor & Davidson, 2003), Perceived Social Support from Family and Friends Scale (González & Landero, 2014), as well as a Multidimensional Self-Concept Questionnaire (authors). The sample comprised 1250 adolescents aged 12 to 15 years old, randomly selected. The results confirmed that there were positive correlations between subjective well-being and resilience, self-concept and social support. A high level of self-concept, resilience and family support were predictors of satisfaction with life, a high level of resilience, self-concept and friends support of positive affect, and negative affect was predicted by low levels of self-concept and family support.

Contextual and psychological variables in a descriptive model of subjective well-being and school engagement / Variables contextuales y psicológicas en un modelo explicativo del bienestar subjetivo y la implicación escolar

Background/Objective: The objective of this ex post facto study is to analyze both the direct relationships between perceived social support, self-concept, resilience, subjective well-being and school engagement.Method: To achieve this, a battery of instruments was applied to 1,250 Compulsory Secondary Education students from the Basque Country (49% boys and 51% girls), aged between 12 and 15 years (M = 13.72,SD =1.09), randomly selected. We used a structural equation model to analyze the effects of perceived social support, self-concept and resilience on subjective well-being and school engagement. Results: The results provide evidence for the influence of the support of family, peer support and teacher support on self-concept. In addition, self-concept is shown as a mediating variable associated with resilience, subjective well-being and school engagement. Conclusions: We discuss the results in the context of positive psychology and their practical implications in the school context (AU)

Antecedentes/Objetivo: El objetivo de este estudio ex post facto es analizar las relaciones entre apoyo social percibido, autoconcepto, resiliencia, bienestar subjetivo e implicación escolar. Método: Se aplicó una batería de instrumentos a 1.250 estudiantes de Educación Secundaria Obligatoria del País Vasco (49% chicos y 51% chicas), de entre 12 y 15 años (M = 13,72, DT =1,09), seleccionados aleatoriamente. Se sometió a prueba un modelo de ecuaciones estructurales para analizar los efectos del apoyo social percibido, el autoconcepto y la resiliencia sobre el bienestar subjetivo y la implicación escolar. Resultados: Los resultados aportan evidencias a favor de la influencia que ejercen el apoyo de la familia, el apoyo de los iguales y el apoyo del profesorado sobre el autoconcepto, que a su vez se muestra como variable mediadora asociada a la resiliencia, el bienestar subjetivo y la implicación escolar. Conclusiones: Se discuten los resultados obtenidos en el marco de la psicología positiva y sus implicaciones prácticas en el contexto escolar (AU)

Validation of the Spanish Version of the School Engagement Measure (SEM)

The scientific study of school engagement has recently been the subject of considerable interest in the field of educational psychology, and significant advances have been made in our knowledge of this construct. For instance, there is currently consensus in the scientific community that it is multifaceted, and has three dimensions: behavioral engagement, emotional engagement, and cognitive engagement. However, more advanced statistical analyses are needed to validate Spanish-language measures of school engagement, which this study proposes to do. The sample was comprised of 1,250 adolescents from Basque Country (49% boys, 51% girls) aged 12 to 15 years old (M = 13.72, SD = 1.09). The results of confirmatory factor analysis on the School Engagement Measure (Fredricks, Blumenfeld, Friedel, & Paris, 2005) supported a three-dimensional structure of school engagement (χ2 (100) = 676.93, p < .001; GFI = .931; CFI = .906; IFI = .907; SRMR = .058; RMSEA = .068). Reliability indexes were satisfactory, ranging from .83 to .94. Adequate evidence of concurrent validity was found for the variable perceived school performance (p < .01). The results are discussed from an educational perspective, and with an eye to future research (AU)

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