Team performance according to ball possession characteristics : a social networks approach

Over the last few years, football entered in a period of accelerated access to large amount of match analysis data. Social networks have been adopted to reveal the structure and organization of the web of interactions, such as the players passing distribution tendencies. In this study we investigated the influence of ball possession characteristics in the competitive success of Spanish La Liga teams. The sample was composed by OPTA passing distribution raw data (n=269,055 passes) obtained from 380 matches involving all the 20 teams of the 2012/2013 season. Then, we generated 760 adjacency matrixes and their corresponding social networks using Node XL software. For each network we calculated three team performance measures to evaluate ball possession tendencies: graph density, average clustering and passing intensity. Three levels of competitive success were determined using two-step cluster analysis based on two input variables: the total points scored by each team and the scored per conceded goals ratio. Our analyses revealed significant differences between competitive performances on all the three team performance measures (p < .001). Bottom-ranked teams had less number of connected players (graph density) and triangulations (average clustering) than intermediate and top-ranked teams. However, all the three clusters diverged in terms of passing intensity, with top-ranked teams having higher number of passes per possession time, than intermediate and bottom-ranked teams. Finally, similarities and dissimilarities in team signatures of play between the 20 teams were displayed using Cohen’s effect size. In sum, findings suggest the competitive performance was influenced by the density and connectivity of the teams, mainly due to the way teams use their possession time to give intensity to their game.

El trabajo social y la educación de Bachillerato General Unificado (BUG)

El presente trabajo monográfico consiste en establecer la importancia que tiene la intervención del Trabajo Social dentro de las instituciones públicas que brindan el servicio de educación en los niveles de Bachillerato General Unificado BGU. Como lo establecen (Merino & Namicela, 2012) dentro de estas instituciones (Colegios y/o Unidades Educativas) se identifican varias problemáticas como el acoso escolar, el consumo, uso y abuso de sustancias psicotrópicas, problemas intrafamiliares (falta de comunicación, negligencia, déficit económico, etc.) que dificultan al proceso educativo de los estudiantes, causan bajo rendimiento académico, abandono y/o deserción escolar; que finalmente repercute al desarrollo económico y social de cada persona y de la sociedad ecuatoriana en general. Ante esta problemática el Estado ecuatoriano ha implementado varios instrumentos legales, empezando desde la reforma de la Constitución en el 2008, que significo un cambio fundamental para el sistema educativo ecuatoriano, pues a partir de este hecho, se han creado y reformulado normas legales que especifican y garantizan el acceso a una educación integral de mayor calidad y calidez. Dentro de esta apuesta gubernamental para mejorar el acceso y la calidad educativa aparece la intervención del Trabajo Social como la profesión que investiga procesos concretos relacionados a las condiciones de vida de los individuos, sus necesidades y potencialidades para que atreves de sus funciones reconozca y establezca soluciones a problemas entre las interacciones humanas e institucionales, a fin de lograr un mayor bienestar social de los estudiantes.

‘‘Model age-based” and ‘‘copy when uncertain” biases in children’s social learning of a novel task

Theoretical models of social learning predict that individuals can benefit from using strategies that specify when and whom to copy. Here the interaction of two social learning strategies, model age-based biased copying and copy when uncertain, was investigated. Uncertainty was created via a systematic manipulation of demonstration efficacy (completeness) and efficiency (causal relevance of some actions). The participants, 4- to 6-year-old children (N = 140), viewed both an adult model and a child model, each of whom used a different tool on a novel task. They did so in a complete condition, a near-complete condition, a partial demonstration condition, or a no-demonstration condition. Half of the demonstrations in each condition incorporated causally irrelevant actions by the models. Social transmission was assessed by first responses but also through children’s continued fidelity, the hallmark of social traditions. Results revealed a bias to copy the child model both on first response and in continued interactions. Demonstration efficacy and efficiency did not affect choice of model at first response but did influence solution exploration across trials, with demonstrations containing causally irrelevant actions decreasing exploration of alternative methods. These results imply that uncertain environments can result in canalized social learning from specific classes of mode

Quand les interactions avec les professionnels orientent le choix des sources de soutien des proches aidants accompagnant à domicile une personne âgée atteinte d’un trouble de l’humeur

Méthodologie: Théorisation ancrée, Interactionnisme symbolique

Análisis de la estrategia de intervención social para la reubicación de vendedores ambulantes en quioscos de la red pública de prestación de servicios al usuario del espacio público -REDEP en la localidad de chapinero, Bogotá.

El presente informe tiene como objetivo presentar los resultados de la práctica profesional en la que se realizó un análisis de la estrategia de quioscos empleada por la Red Pública de Prestación de Servicios al Usuario del Espacio Público (REDEP) del Instituto para la Economía Social (IPES) para la reubicación de vendedores ambulantes en la ciudad de Bogotá. Las ventas ambulantes, se han convertido en una problemática social con importante impacto en la ciudad, sin embargo, la REDEP y sus estrategias son concebidas desde la perspectiva del aprovechamiento económico del espacio público en la ciudad, dejando de lado otras perspectivas y evidenciando una deficiencia en el diseño, implementación y seguimiento de la estrategia de quioscos. Se desarrollaron revisiones documentales para identificar los abordajes predominantes sobre la caracterización de los vendedores informales, la estructura y funcionamiento de la REDEP, las concepciones y lecturas predominantes en las políticas públicas del distrito sobre el fenómeno de las ventas ambulantes, así mismo, se explorarán las conceptualizaciones de pobreza urbana, economía informal y trabajo decente, se describe así mismo el planteamiento de la decisión de permanencia en el sector informal. Se realizaron entrevistas a profundidad estructuradas y semi-estructuradas con los vendedores ambulantes para indagar acerca de las ideas, significados y sentimientos que tienen acerca de su actividad laboral, las interacciones que se dan en el espacio que utilizan, las razones por las que desempeñan esta actividad, sus percepciones y experiencias frente a las intervenciones de los entes del distrito. Se buscó acompañar a vendedores durante jornadas diarias completas para realizar un trabajo de observación etnográfica que permitió hacer triangulación de la información. Se desarrolló también, una revisión documental de fuentes directas e indirectas y principalmente fuentes documentales, que permitieron comprender la configuración de la problemática y la forma en que se ha intervenido desde la estrategia de la REDEP. El documento se fundamenta también en un ejercicio descriptivo equiparable al de seguimiento, ya que se carece del acceso total a evidencias que permitan un ejercicio riguroso de evaluación, el análisis retoma elementos de los sistemas tradicionales basados en cumplimiento y en resultados.

Motivations to interact with brands on Facebook – Towards a typology of consumer–brand interactions

In recent years, Facebook and other social media have become key players in branding activities. However, empirical research on consumer–brand interactions on Facebook is still in its infancy. Therefore, the aim of this research is to provide additional insights to brand managers on how to adapt their approaches to increase consumers’ interactions with brands on Facebook. In this study, we apply the uses and gratification theory proposed by Katz (1959) to develop a new typology of consumers based on consumer motivations to interact with brands on Facebook, and explore the type and intensity of these interactions. We identify five main motivations that might influence consumers’ interactions with a brand on Facebook: (1) social influence, (2) search for information, (3) entertainment, (4) trust and (5) reward. Building on these five motivations, a classification using clustering techniques reveals four different groups of consumers: (1) “brand detached”, (2) “brand profiteers”, (3) “brand companions” and (4) “brand reliants”. Our results provide valuable and applicable insights for social media marketing activities, which will assist brand managers to develop strategies for effectively reaching and influencing the most desirable groups of consumers.

The effect of gender context on children's social behaviour in a limited resources situation : an observational study

Knowing when to compete and when to cooperate to maximize opportunities for equal access to activities and materials in groups is critical to children's social and cognitive development. The present study examined the individual (gender, social competence) and contextual factors (gender context) that may determine why some children are more successful than others. One hundred and fifty-six children (M age=6.5 years) were divided into 39 groups of four and videotaped while engaged in a task that required them to cooperate in order to view cartoons. Children within all groups were unfamiliar to one another. Groups varied in gender composition (all girls, all boys, or mixed-sex) and social competence (high vs. low). Group composition by gender interaction effects were found. Girls were most successful at gaining viewing time in same-sex groups, and least successful in mixed-sex groups. Conversely, boys were least successful in same-sex groups and most successful in mixed-sex groups. Similar results were also found at the group level of analysis; however, the way in which the resources were distributed differed as a function of group type. Same-sex girl groups were inequitable but efficient whereas same-sex boy groups were more equitable than mixed groups but inefficient compared to same-sex girl groups. Social competence did not influence children's behavior. The findings from the present study highlight the effect of gender context on cooperation and competition and the relevance of adopting an unfamiliar peer paradigm when investigating children's social behavior.