The role of psychosocial stress on a family-based treatment for adolescents with problematic behaviors

The stressful life events experienced by adolescents with problematic behaviors, should be considered for implementing effective interventions. This study aimed to examine the adjustment of adolescents with problematic behaviors, and to assess the effectiveness of a family-based treatment, namely Scene-Based Psychodramatic Family Therapy (SB-PFT), according to different stress profiles. Ten SB-PFT sessions, over 17 trials were implemented. Stressful life events and adolescent adjustment were evaluated at pretest and posttest, for the SB-PFT participants (n = 104 adolescents) and a control group (n = 106). The adolescents were categorized into three profiles depending on the nature of the stressors: family stress profile, individual and family stress profile, and low stress profile. The individual and family stress group showed worse adjustment. Effectiveness analyses revealed improvements in SB-PFT participants’ emotional intelligence, but not in anger and hostility. Furthermore, adolescents with low and family-related stress profiles showed enhancements in parent attachment. In conclusion, interventions involving adolescents with problematic behaviors must be tailored to the stressful life events experienced. Specific treatments should be used alongside SB-PFT, when adolescents are met with individual-related stress. Nevertheless, SB-PFT seemed to promote emotional intelligence and parent attachment, particularly in adolescents with problematic behaviors that experienced only family stressors.Ministerio de Economía, Industria y Competitividad EDU2013-41441-PMinisterio de Educación, Cultura y Deportes FPU Program-311

Cigarette smoking and risk of suicide in bipolar disorder: a systematic review

Objective: Bipolar disorder (BD) is a highly prevalent, chronic and recurrent mental illness. The smoking rates in patients with BD are much higher than those of the general population, and BD is associated with an increased risk of suicide. An association between smoking and suicidal behavior has been found in the general population, this systematic review examines whether there is evidence of an association between smoking and suicide behavior in patients with BD. Method: A database search was carried out in Medline, Embase, The Cochrane Library, Scopus, and Web of Science, updated until December 31st, 2021, according to the 2020 PRISMA guidelines. We identified prospective and retrospective studies that included patients diagnosed with BD types I, II, and not otherwise specified, and in which smoking and suicidal behavior were correlated. Articles that focused exclusively on other mental disorders were excluded. The Ottawa-Newcastle scale was used to assess the methodological quality of the included articles. Results: Fifteen articles (n = 7,395) met all the inclusion criteria. In nine of these articles, the authors found an association between smoking and suicidal behavior in BD, while in the remaining six articles, this association was not found. A great deal of variability was observed between articles, particularly in the measurement of suicidal behavior and tobacco consumption. The risk of bias, as assessed by the NOS, was high for most of the included articles, except for two papers, whose risk was low. Conclusion: It was not possible to establish a clear relationship between tobacco use and the risk of suicide in BD patients due to the heterogeneity of the articles included in this systematic review, which had different sample sizes and methodological issues. However, both conditions are highly prevalent and have a negative impact on the prognosis of BD. Therefore, a systematic approach is needed, based on accurate measurement of a patient’s smoking habits and their risk of suicidal behavior, in order to establish an appropriate therapeutic plan. Additional information: This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors and was registered on PROSPERO with the CRD42022301570 on January 21th 2022

Influence of Contextual Variables on Educational Performance: A Study Using Hierarchical Segmentation Trees

The general objective of this study is to explore the relationship between students’ contextual characteristics and their performance in mathematical reasoning (MR) and linguistic comprehension (LC) skills. The census data from the ESCALA (EScritura, CAlculo y Lectura en Andalucía) tests developed by Agencia Andaluza de Evaluación Educativa (AGAEVE) in 2017 were used. These tests are carried out in the second year of primary school in the Autonomous Community of Andalusia (Spain). These data have been analysed through the data mining technique known as segmentation trees, using the CRT (Classification and regression trees) algorithm for each of the skills. This has allowed the detection of the high influence of social and cultural status (ESCS) and familial expectations regarding academic performance in both tests. In addition, it allows us to point out that there are different interactions between contextual characteristics and their relationship to performance in MR and LC. These results have made it possible to establish groups of students who may be at risk of not reaching the minimum required levels. Some characteristics of at-risk students are low ESCS, low family expectations or being born in the last six months of the year. The detection of at-risk profiles could contribute to the optimisation of the performance of these groups by creating specific plans.Universidad de Sevilla: VIPPIT-201

Factors Associated with School Effectiveness: Detection of High- and Low-Efficiency Schools through Hierarchical Linear Models

School effectiveness is a topic of interest addressed by numerous research projects focused on clarifying which variables contribute to the explanation of educational performance. This research aims to find out to what extent social, cultural, and academic variables at the student and school levels, as perceived by families, influence performance, and to evaluate the relevance of high residual and gross score criteria in the selection of effective or ineffective schools. Census data from diagnostic evaluations of the Mathematical Reasoning and Linguistic Communication of students in a certain Spanish region, over five academic years, have been used. The multilevel hierarchical analyses carried out have enabled the detection of centers of high and low efficiency, as well as the identification of which factors, related to the idiosyncrasy of the students and the educational center they attend, significantly influence the performance of the students. It was concluded that the socioeconomic and cultural level of the families, the family expectations, the commitment to reading and the educational agreement were significant variables in the explanation of the students’ educational performance, and that the residual score of the educational centers was a valid criterion to estimate their level of effectiveness once the socio-cultural factors have been controlled.Ministry of Economy and Knowledge of the Regional Goverment of Andalusia (Spain): US-1263333European Regional Development Fund (FEDER): US-1263333University of Seville: USE-20404-

Improving the university teaching-learning process with ECO methodology: Teachers’ perceptions

This study presents the results of research focused on university teachers’ perceptions of the implementation of ECO (Explore, Create, and Offer) methodology. Through teachers´ responses, the objective was to learn about the impact ECO has on both teaching and learning. The sample consists of 22 teachers from four academic fields; they implemented ECO methodology during the 2018–19 academic year with 1,350 undergraduate students and 175 Master’s-level students. The participating teachers belong to five universities: Universidad de Sevilla (Spain), Universitat de Barcelona (Spain), Universidade de Vigo (Spain), Universidad de Las Palmas de Gran Canaria (Spain) and Universidad Nacional de La Plata (Argentina). An exploratory and descriptive study was carried out, and the data were gathered from an online survey filled in by the teachers. Twenty-eight cases were obtained, one for each course that was involved in the project. The mean values were analysed by running a Kruskal-Wallis H test and ER2 for the effect size. In addition, the thematic analysis method was used to analyse the teachers' perceptions while representing their opinions faithfully. The results showed that ECO methodology has a very positive effect on the personal development of the teachers. ECO is a methodology that comes to have revolutionary effects, improving the relationship between teachers and students, who strengthen their commitment to their own learning. It is also an excellent means for connecting students with the social and professional world outside of academia

Estudio sobre la taxonomía, ecología y distribución de algunos hongos de la familia Boletaceae (Basidiomycetes, Agaricales) de México

Tesis (Maestría en Ciencias Forestales) UANLUANLhttp://www.uanl.mx

Seguridad social, pobreza y sector informal en América Latina

La tesis titulada "seguridad social, pobreza y sector informal en América latina", trata de definir el contexto económico y social en el que se insertan las reformas previsionales llevadas a cabo en América latina en los últimos años. Contexto caracterizado por la relevancia de la pobreza como fenómeno y la importancia relativa del sector informal dentro de estas economías. En este sentido tres pueden ser los objetivos básicos del estudio: intentar dar una aproximación lo mas completa posible a esta realidad sin omitir ningún elemento esencial, ofreciendo una visión global de conjunto; llegar a saber si las reformas planteadas en materia de seguridad social representan una oportunidad para los mas desfavorecidos entendidos como tales los "no cubiertos" (definición operativa empleada de sector informal); y definir si existen o pueden llegar a existir propuestas alternativas. Se pretende ofrecer como novedoso un enfoque sistemático de la seguridad social, la pobreza y el sector informal en América latina en un contexto económico y social determinado, apoyándose en datos, estudios y literatura preexistente, y en entrevistas en profundidad realizadas a expertos y afectados, se llega a proponer una forma diferente de actuación de la previsión social respecto a la informalidad y la pobrez

Obtención de clones de alcornoque (Quercus suber L.) mediante embriogénesis somática: aplicación de medios líquidos y biorreactores en la sincronización de los procesos de desarrollo y maduración de los embriones

El alcornoque tiene un gran valor ambiental, como integrante de los ecosistemas forestales mediterráneos, e interés comercial por el valor de la bellota (alimentación del cerdo ibérico), el carbón, la madera y sobre todo por las aplicaciones industriales del corcho. Las posibilidades de mejora genética del alcornoque, como las de otras especies forestales, están limitadas por sus largos ciclos reproductivos y porque su propagación vegetativa mediante estaquillado solo es posible en estados muy juveniles. Por ello este sistema de propagación tiene muy poca, o ninguna, utilidad práctica en la mejora genética. La embriogénesis somática es la vía más apropiada para la clonación de muchas especies forestales y ha hecho posible el desarrollo a gran escala de plantaciones multivarietales de coníferas. En alcornoque es posible la regeneración completa de árboles adultos mediante embriogénesis somática. Con los protocolos actuales (en medio semisólido), los embriones se generan formando acúmulos y en la fase de multiplicación conviven embriones en distintos estados de desarrollo. Es un sistema asincrónico, con baja eficacia para la propagación en masa, que no elimina completamente las dificultades para el desarrollo de programas de mejora genética del alcornoque. En otras especies la utilización de medios líquidos ha mejorado: la sincronización, productividad de los cultivos, el manejo y reducido los costes de producción. Por ello el desarrollo de suspensiones embriogénicas de alcornoque se plantea como una vía para aumentar la eficacia de la propagación clonal a gran escala. En la presente tesis se desarrollan cultivos embriogénicos de alcornoque en medio líquido. El capítulo 3 aborda el establecimiento y mantenimiento de suspensiones, el capítulo 4 el desarrollo de una fase de proliferación en medio líquido y el capítulo 5 la utilización de sistemas de cultivo en medio líquido, estacionarios y de inmersión temporal, como vía para favorecer la maduración de los embriones somáticos. Para iniciar los cultivos en medio líquido se emplearon agregados de embriones tomados de la fase de proliferación en medio semisólido. Cuando estos agregados se inocularon directamente en medio líquido no se logró el establecimiento de las suspensiones. El establecimiento se consiguió empleando como inóculo las células y Resumen pequeños agregados embriogénicos, de tamaño comprendido entre 41 y 800 μm, desprendidas por agitación breve de los agregados de embriones. El mantenimiento se logró inoculando en baja densidad masas embriogénicas compactas de tamaño comprendido entre 0,8 y 1,2 mm. Estas suspensiones, muy heterogéneas, mantuvieron su capacidad de proliferación y de regeneración de embriones al menos durante diez subcultivos consecutivos. El protocolo de iniciación y mantenimiento, desarrollado inicialmente con un solo genotipo, fue eficaz cuando se probó sobre otros 11 genotipos de alcornoque. En la fase de proliferación se ensayaron tres tipos de envase y tres velocidades de agitación. La combinación envase × velocidad determinó el intercambio gaseoso, la disponibilidad de oxígeno y el estrés hidrodinámico. Los agregados embriogénicos de alcornoque crecieron incluso en condiciones de hipoxia no siendo la disponibilidad de oxígeno un factor limitante del crecimiento para tasas de trasferencia de oxígeno comprendidas entre 0,11 h-1 y 1,47 h-1. Por otra parte la producción de biomasa creció con el estrés hidrodinámico para valores de índice de cizalladura inferiores a 5 x 10-3 cm min-1. La mayor producción de biomasa se obtuvo con matraces Erlenmeyer de 100 ml y alta velocidad de agitación (160 rpm) mientras que la diferenciación de embriones se vio favorecida por bajas velocidades de agitación (60 rpm) asociadas con bajas disponibilidades de oxígeno. La posibilidad de madurar embriones de alcornoque en medio líquido se estudió utilizando sistemas de inmersión permanente y sistemas de inmersión temporal. En inmersión permanente no se diferenciaron embriones cotiledonares (posiblemente por hiperhidricidad). Los sistemas de inmersión temporal permitieron obtener embriones maduros en estado cotiledonar y capaces de regenerar plantas in vitro. Concentraciones de sacarosa superiores a 60 g l-1 y frecuencias de inmersión iguales o inferiores a una diaria, tuvieron efectos negativos para el desarrollo de los embriones somáticos. En los sistemas de inmersión temporal los parámetros físico-químicos del medio de cultivo se mantuvieron estables y no se observó ninguna limitación de nutrientes. No obstante, estos sistemas se vieron afectados por la evaporación que generó el flujo de aire necesario para desplazar el líquido en cada periodo de inmersión. Abstract ABSTRACT Cork oak is one of the most important tree species of the Mediterranean ecosystem. Besides its high environmental value has a great economic interest due to the sustainable production of acorns (to feed the Iberian pig) charcoal, timber and cork, which is a renewable natural product with various technological applications. As happens with other forest species, cork oak genetic improvement programs are limited by their long life cycles and because vegetative propagation by cuttings it´s only possible in very juvenile plants. Hence this propagation system is useless or has little practical use for breeding cork oak. Plant regeneration by somatic embryogenesis is the most suitable way for cloning many forest species, and it is the enabling technology which has allowed the establishment of large-scale conifer multi-varietal plantations. Clonal plant regeneration of mature cork oak trees can be achieved through somatic embryogenesis. Somatic embryos at different stages of development and forming clusters are produced during the multiplication phase with current protocols (using semisolid medium). This is an asynchronous low-efficient process not suitable for mass propagation, and therefore it does not solve the difficulties presented by cork oak breeding programs. Culture in liquid medium has been used with other species to improve: synchronization, yield, handling, and to reduce production costs. Thus the development of cork oak embryogenic suspension cultures is envisaged as a way to increase the efficiency of large scale clonal propagation. The thesis herein develops cork oak embryogenic cultures in liquid medium. In chapter 3 establishment and maintenance of suspension cultures are developed, chapter 4 studies proliferation phase in liquid medium and chapter 5 considers the use of different systems of culture in liquid medium, both stationary and temporary immersion, as a way to promote somatic embryos maturation. Clusters of embryos taken from proliferating cultures on semisolid medium were used to initiate the cultures in liquid medium. When these clusters were inoculated directly in liquid medium establishment of suspension cultures was not executed. However using, as initial inoculum, cells and cell aggregates with a size between 41 and 800 μm detached from these clusters of embryos, subjected to a brief shaking, suspension cultures could be established. Suspension maintenance was achieved by inoculating compact embryogenic Abstract clumps with a size between 0.8 and 1.2 mm at low density. The suspension cultures, very heterogeneous, retained both their proliferation and embryo regeneration capacity for at least ten consecutive subcultures. The initiation and maintenance protocol, initially developed with a single genotype, was effective when tested on 11 additional genotypes of cork oak. In proliferation phase three types of vessels and three different levels of agitation were assayed. The combination vessel × orbiting speed determined gas exchange, oxygen availability and hydrodynamic stress. Cork oak embryogenic aggregates grew even under hypoxia conditions; oxygen availability at transfer rates between 0.11 and 1.47 h-1 was not a limiting factor for growth. Furthermore the biomass production was increased with hydrodynamic stress when shear rate values were of less than 5 x 10-3 cm min-1. The highest biomass production was obtained with 100 ml Erlenmeyer flask and high stirring speed (160 rpm) while the differentiation of embryos was favored by low agitation speeds (60 rpm) associated with low oxygen availability. The possibility to mature cork oak somatic embryos in liquid medium was studied using both permanent immersion systems and temporary immersion systems. Cotyledonary embryos did not differentiate in permanent immersion conditions (probably due to hyperhydricity). Temporary immersion systems allowed obtaining mature cotyledonary embryos, which were able to regenerate plants in vitro. Sucrose concentrations above 60 g l-1 and immersion frequencies equal to or lower than one each 24 h had negative effects on somatic embryo development. Physicochemical parameters of the culture medium in temporary immersion systems were stable and showed no limitation of nutrients. However, these systems were affected by the evaporation generated by the airflow necessary to relocate the medium at each immersion period