Physical comparision and social physique anxiety: gender differences

La importancia de trabajar la autoestima y el desarrollo de una imagen corporal positiva se vislumbra con gran interés desde edades tempranas, debido a las consecuencias desadaptativas derivadas. El objetivo primario de este estudio fue analizar las posibles diferencias entre géneros en cuanto a la comparación hacia la apariencia física y la ansiedad física. Un segundo objetivo pretendió analizar la relación predictiva de la comparación hacia la apariencia física (hacia arriba y hacia abajo) sobre la ansiedad físico social. Participaron 347 universitarios (188 hombres y 159 mujeres) con edades entre 18 y 24 años (Medad = 20.42; DTedad = 1.54). Los resultados derivados de la prueba t de estudiante mostró diferencias estadísticamente significativas en comparación hacia arriba, comparación hacia abajo y ansiedad físico social a favor de la mujer. Los resultados emergidos del análisis de regresión lineal reflejaron que tanto la comparación hacia arriba como la comparación hacia abajo predijeron la ansiedad físico social, después de controlar el modelo por el género. Como conclusión, este estudio subraya que una excesivamente comparación hacia la apariencia física podría conducir a la ansiedad físico social tanto en hombres como en mujeres.The importance of working on self-esteem y the development of a positive body image is glimpsed with a great interest from an early age, due to the maladaptive consequences derived from them. The primary objective of this research was to analyze the possible difference among gender in appearance comparison y social physique anxiety. The secondary objective aimed to analyzing the predictive relationship of physical (upward y downward) appearance comparison on social physique anxiety. There were 347 university students (188 men y 159 women), aged between 18 y 24 (Mage = 20.42; SDage = 1.54). The results derived from the t-Student tests showed statistically significant difference in upward comparison, downward comparison y social physique anxiety in favor of women. The results emerged from the linear regression analysis reflected that both upward comparison y downward comparison predicted social physical anxiety positively y significantly, after controlling the model for gender. In its conclusion, this research underlines that an excessive body-image comparison may lead to social physique anxiety in men y women

Effects of satisfaction and thwarting of basic psychological needs on the forms of passion for exercise

Basado en la teoría de la autodeterminación y en el modelo dual de pasión, el objetivo de este estudio fue determinar la influencia de la percepción de satisfacción y frustración de las necesidades psicológicas básicas en el contexto del ejercicio físico sobre las formas armoniosa (PA) y obsesiva (PO) de la pasión por esta actividad, considerando si dicha relación podría diferir en función del género. Un total de 398 estudiantes universitarios (256 hombres y 114 mujeres) de entre 17 y 44 años (Medad= 20.49; DT= 3.38) que manifestaron realizar ejercicio físico al menos una vez por semana, completaron un cuestionario que recogía las variables de interés. Los resultados del modelo de ecuaciones estructurales mostraron que, en general, la satisfacción y la frustración de las necesidades psicológicas básicas predecían de forma positiva la PO, mientras que tan solo la satisfacción de las necesidades predecía la PA. No obstante, se observaron diferencias en función del género en el efecto que la frustración de las necesidades psicológicas básicas ejercía sobre ambas formas de pasión. En conjunto, la satisfacción y la frustración de las necesidades psicológicas básicas explicaron un 25% y un 44% de la varianza de la PA en hombres y mujeres, respectivamente, situándose dichos porcentajes en el 32% y el 14% en el caso de la PO. Estos resultados sugieren que, al menos en población masculina, las intervenciones destinadas a disminuir la percepción de frustración de las necesidades psicológicas básicas en el contexto del ejercicio podrían contribuir a disminuir una implicación obsesiva en esta conducta

Academic motivation in physical education teacher education

La regulación integrada se ha mostrado como la regulación motivacional con mayor poder predictivo sobre las conductas adaptativas en diferentes ámbitos de la vida, sin embargo, aún no ha sido estudiada en el contexto educativo. El objetivo de este estudio fue incorporar la medida de la regulación integrada a la Escala de Motivación Educativa y observar las propiedades psicométricas de este instrumento. Participaron en el estudio 333 universitarios del área de Educación Física de la Universidad Federal do Espirito Santo/ Brasil. El análisis factorial confirmatorio mostró índices de ajuste aceptables para el modelo de ocho factores correlacionados. Los resultados del análisis de regresión mostraron que la regulación integrada fue la variable que mejor predijo la intención de ser profesor. Este instrumento podría contribuir a una mayor comprensión de los procesos motivacionales involucrados en el ámbito de la formación inicial en Educación Física en BrasilIntegrated regulation has been showed as the motivational regulation with the highest predictive power on adaptive behaviours in different life domains; however, it has not been examined in the educational context yet. The purpose of this study was to incorporate the assessment of integrated regulation to the Academic Motivation Scale in the initial training of Physical Education teachers in Brazil and examine the psychometric properties of this instrument. There were 333 undergraduate participants from the bachelor degree of Physical Education, Federal University of Espirito Santo/ Brazil. Confirmatory factor analysis showed acceptable fit indices for the eight-factor correlated structure. The results of the regression analysis showed that the variable integrated regulation was the strongest predictor of the intention to become a teacher. This new instrument may contribute to a deeper understanding of the motivational processes involved in the initial training of Physical Education teacherEsta investigación ha sido realizada gracias a la ayuda recibida por parte de la Fundación Carolin

Palatability of Alfalfa (\u3cem\u3eMedicago sativa\u3c/em\u3e L.) and Orchard Grass (\u3cem\u3eDactylis glomerata\u3c/em\u3e L.) Silages

The objective was to compare palatability with different methodologies for characterizing silages at Chapingo Autonomous University, México. Eight silages were used resulting from an experiment which evaluated effects of cutting time (08:00 and 14:00), time of wilting (0, 1 and 2 h) and use of lactic bacteria inoculant on properties of alfalfa (Medicago sativa L.) and orchard grass (Dactylis glomerata L.) silages. Organoleptic properties (odor, color, texture, moisture) were assessed by trained observers, using as categories: excellent, good, fair and poor. Dry matter content, CO2 rate of production and pH were also measured. For the evaluation of palatability with ewes, the experiment encompassed 18 days of adaptation and 14 days of measurement. In each of the 14 days of evaluation, four combinations of silages were evaluated (three silages per combination), each one assigned to experimental units formed by three ewes allotted by means of ratified random; each experimental unit was housed during 2.5 h in a pen with three feeders. The silages to be evaluated daily by each experimental unit were allotted randomly to these feeders. Silages harvested at 14:00 achieved highest scores in organoleptic, preference and intake evaluations. Results of preference and intake were similar and the results of PCA ordering of treatments resembled those of odor and texture and were opposite to those of pH and in a lesser extent also to those of aerobic deterioration. The organoleptic evaluation resulted an easy and cheap method to characterize silages, which results were reliable predictors of preference and intake (and hence quality) of alfalfa and orchard grass silages

Severe odontogenic infections : epidemiological, microbiological and therapeutic factors

Objectives: A retrospective study is made of the odontogenic infections treated in La Paz University Hospital (Madrid, Spain) during 2007 and 2008, with an epidemiological and microbiological analysis of a large group of patients.Study Design: A retrospective descriptive study was made, involving the consecutive inclusion of all patients with odontogenic infection requiring admission to our hospital in the period between January 2007 and December 2008. Results: A total of 151 patients were included, with a mean age of 40.3 years and a balanced gender distribution. The most frequently affected teeth were those located in the posterior mandibular segments, caries being the main underlying cause. Most isolates comprised mixed flora, particularly viridans streptococci, different species of Prevotella, Micromonas micros, and different species of Actinomyces. Susceptibility analysis of the microbial isolates showed a high percentage resistance to clindamycin (42.8% of all isolates), particularly among viridans streptococci.Conclusions: The use of antibiotics in head and neck infections requires updated protocols based not only on the existing scientific evidence but also on the epidemiological reality of each center. On the other hand, identification is required of the surgical factors determining infection and how they influence morbidity associated with this type of pathology. © Medicina Oral

Fístula arteriovenosa postraumática: tratamiento endovascular. Revisión de la literatura y presentación de un caso clínico

ResumenLas fístulas arteriovenosas en la cabeza y el cuello son entidades poco frecuentes. La mayoría es secundaria a heridas penetrantes por arma blanca. Se describe el tratamiento exitoso mediante cirugía endovascular de una fístula postraumática tras una herida penetrante entre la arteria maxilar interna izquierda y la vena yugular externa. A través de este caso clínico y la revisión de la literatura se ilustran las causas, manifestaciones, estudio radiológico y tratamiento de una fístula postraumática entre la arteria maxilar interna y la vena yugular externa. A través de este caso clínico se demuestra la utilidad de los procedimientos endovasculares en el tratamiento de estas complicaciones.AbstractTraumatic arteriovenous fistulas of the head and neck region are uncommon. The majority are due to penetration of blunt injury. We describe a successful endovascular treatment of a posttraumatic fistula between the left maxillary artery and the external jugular vein due to a penetration injury. This case and a review of the literature illustrate the causes, manifestations, image studies and treatment for a posttraumatic fistula between the maxillary artery and the external jugular vein. This case demonstrate the utility of endovascular treatment of head and neck injuries complications

Genomic prediction in CIMMYT maize and wheat breeding programs

Genomic selection (GS) has been implemented in animal and plant species, and is regarded as a useful tool for accelerating genetic gains. Varying levels of genomic prediction accuracy have been obtained in plants, depending on the prediction problem assessed and on several other factors, such as trait heritability, the relationship between the individuals to be predicted and those used to train the models for prediction, number of markers, sample size and genotype × environment interaction (GE). The main objective of this article is to describe the results of genomic prediction in International Maize and Wheat Improvement Center's (CIMMYT's) maize and wheat breeding programs, from the initial assessment of the predictive ability of different models using pedigree and marker information to the present, when methods for implementing GS in practical global maize and wheat breeding programs are being studied and investigated. Results show that pedigree (population structure) accounts for a sizeable proportion of the prediction accuracy when a global population is the prediction problem to be assessed. However, when the prediction uses unrelated populations to train the prediction equations, prediction accuracy becomes negligible. When genomic prediction includes modeling GE, an increase in prediction accuracy can be achieved by borrowing information from correlated environments. Several questions on how to incorporate GS into CIMMYT's maize and wheat programs remain unanswered and subject to further investigation, for example, prediction within and between related bi-parental crosses. Further research on the quantification of breeding value components for GS in plant breeding populations is required.J Crossa, P Pérez, J Hickey, J Burgueño, L Ornella, J Cerón-Rojas, X Zhang, S Dreisigacker, R Babu, Y Li, D Bonnett and K Mathew

Adaptación de la multidimensional sportspersonship orientations scale al contexto español de la educación física

The objective was to analyse the factor structure of the different versions proposed for the Multidimensional Sportspersonship Orientations Scale (MSOS) in the Spanish Physical Education context. The participants were 652 Post-Compulsory and Compulsory Secondary Education students (353 men y 299 women; Mage = 14.98, SDage = 1.59). Confirmatory factor analysis psychometrically supported none of the different versions prosed by the previous works for the MSOS. Nevertheless, the findings underpinned a 17-items 4-factor model (i.e., respect for social conventions, respect for rules and teacher, commitment and respect for classmates) for Physical Education. This structure was invariant across gender. The correlations supported the instrument’s discriminant validity. Reliability analysis reflected suitable values for each factor. In its conclusion, the use of a new factor structure for the MSOS was recommended in the Spanish Physical Education context.El objetivo fue analizar la estructura factorial de las diferentes versiones propuestas para la Multidimensional Sportspersonship Orientations Scale (MSOS) en el contexto español de la educación física. Los participantes fueron 652 estudiantes de educación secundaria y bachillerato (353 hombres y 299 mujeres; Medad = 14.98, DTedad = 1.59). El análisis factorial confirmatorio no apoyó psicométricamente ninguna de las versiones planteadas por los trabajos previos para la MSOS. Sin embargo, los hallazgos sustentaron psicométricamente un modelo de cuatro factores correlacionados y 17 ítems (i.e., respecto por las convenciones sociales, respeto por las reglas, compromiso y respeto por el compañero) para la educación física. Esta estructura fue invariante por género. Las correlaciones sustentaron la validez discriminante del instrumento. El análisis de fiabilidad reflejó valores adecuados para cada factor. Como conclusión, se recomienda la utilización de una nueva estructural factorial para la MSOS en el contexto español de la educación física

On the performance of SQL scalable systems on Kubernetes: a comparative study

The popularization of Hadoop as the the-facto standard platform for data analytics in the context of Big Data applications has led to the upsurge of SQL-on-Hadoop systems, which provide scalable query execution engines allowing the use of SQL queries on data stored in HDFS. In this context, Kubernetes appears as the leading choice to simplify the deployment and scaling of containerized applications; however, there is a lack of studies about the performance of SQL-on-Hadoop systems deployed on Kubernetes, and this is the gap we intend to fill in this paper. We present an experimental study involving four representative SQL scalable platforms: Apache Drill, Apache Hive, Apache Spark SQL and Trino. Concretely, we analyze the performance of these systems when they are deployed on a Hadoop cluster with Kubernetes by using the TPC-H benchmark. The results of our study can help practitioners and users about what they can expect in terms of performance if they plan to use the advantages of Kubernetes to deploy applications using the analyzed SQL scalable platforms.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. Funding for open access charge: Universidad de Málaga / CBUA. This work has been partially funded by the Spanish Ministry of Science and Innovation via Grant PID2020-112540RB-C41 (AEI/FEDER, UE), Andalusian PAIDI program with grant P18-RT-2799, and by project ”Evolución y desarrollo de la plataforma DOP de Big Data” (702C2000044) under Andalusian “Programa de Apoyo a la I+D+i Empresarial”

Distributed Model-to-Model Transformation with ATL on MapReduce

International audienceEfficient processing of very large models is a key requirement for the adoption of Model-Driven Engineering (MDE) in some industrial contexts. One of the central operations in MDE is rule-based model transformation (MT). It is used to specify manipulation operations over structured data coming in the form of model graphs. However, being based on com-putationally expensive operations like subgraph isomorphism, MT tools are facing issues on both memory occupancy and execution time while dealing with the increasing model size and complexity. One way to overcome these issues is to exploit the wide availability of distributed clusters in the Cloud for the distributed execution of MT. In this paper, we propose an approach to automatically distribute the execution of model transformations written in a popular MT language, ATL, on top of a well-known distributed programming model, MapReduce. We show how the execution semantics of ATL can be aligned with the MapReduce computation model. We describe the extensions to the ATL transformation engine to enable distribution, and we experimentally demonstrate the scalability of this solution in a reverse-engineering scenario