The lonely runner with seven runners

Suppose $k+1$ runners having nonzero constant speeds run laps on a unit-length circular track starting at the same time and place. A runner is said to be lonely if she is at distance at least $1/(k+1)$ along the track to every other runner. The lonely runner conjecture states that every runner gets lonely. The conjecture has been proved up to six runners ($k\le 5$). A formulation of the problem is related to the regular chromatic number of distance graphs. We use a new tool developed in this context to solve the first open case of the conjecture with seven runners

A Meta-analysis on the Effectiveness of Trauma-informed Practice

This study looked at past research on trauma informed practice to analyze its effectiveness.. There is sufficient research portraying the helpfulness of the trauma-informed approach; however, there is little research on whether it is effective as a theoretical intervention. The study looked at how different trauma-informed interventions have helped in diminishing the effect of trauma on different populations. The populations considered in the analysis include: women that have experienced domestic violence, children, individuals with Post-Traumatic Stress Disorder (PTSD), and youth that reside in neighborhoods with high levels of crime. Since trauma-informed care is currently considered a broad theoretical framework for practice, with this meta-analysis, we aim to establish it as a concrete evidence-based practice

Moral reasoning and judgment in childhood. Relations to mind understanding and peer acceptance

Abstract de póster presentado a First meeting of the SEJyD (Society for the Advancement of Judgment and Decision Making Studies)Children’s moral reasoning on compliance and rules violation, and their moral judgments, are linked to the development of their “theory of mind”. Greater ability to attribute mental states (intentions, knowledge and emotions) enable to base the attribution of responsibility, and judgment on the degree of punishment deserved, not only on the outcome of the action (harmful or not), but also on the intent to cause damage. This effect could vary depending on whether: a) the rule transgressed is a social conventional rule or a moral rule, b) the damage is physical-material or psychological-emotional. Moreover, understanding of other minds and moral reasoning that children make about the actions of others appears to be a key element in their degree of popularity and social impact. The aim of this study is to evaluate the developmental relationship between child moral reasoning, understanding of other minds and degree of acceptance by their peers. Participants were 89 children from 4 to 13 years; they were administered: a battery of stories that assessed moral reasoning abilities, a battery of “theory of mind” tasks, peer-nomination inventory. Results show that by 6 years of age begin differences in mind understanding and moral reasoning and judgment among children of the same age: popular and average distinguish between accidental and deliberate transgression (although up to 8 years all children believe that both deserve to be punished); only rejected children consider that the transgression of conventional norms does not deserve punishment; their moral judgments are not different for physical damage than for psychological-emotional damage. By age 8 differences between popular and rejected children in their mind understanding ability and moral reasoning are increased, especially in situations of accidental damage. Children’s moral reasoning ability may have important implications for their social relationships and positive peer interactions.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Why Don't They Lend? Credit Stagnation in Latin America

This study examines the recent marked slowdown in bank credit to the private sector in Latin America. Based on a study of eight countries—Argentina, Bolivia, Brazil, Chile, Colombia, Peru, Mexico, and Venezuela—the magnitude of the slowdown is documented, comparing it to historical behavior and to similar episodes in other regions of the world. Second, changes in bank balance sheets are examined to determine whether the credit slowdown is merely a reflection of a downturn in bank deposits or whether the asset side has changed. Third, following an econometric disequilibrium approach used in recent studies of bank credit in East Asia and Finland, the paper investigates the possible causes in three countries: Colombia, Mexico, and Peru. While both supply and demand factors appear to have played key roles, their relative importance has varied across the three countries. Copyright 2002, International Monetary Fund

A model to explain support in Spanish football

This paper analyses the factors which affect support and influence revenues in Spanish professional football clubs. It focuses on the relationships between attendance and different sets of variables: those that relate to the socio-economic environment, the quality of product (results) and the quality of means of production (team squad). The main conclusions are, firstly, that the quality of the squad influences attendance through its performance on the pitch, secondly, that the level of attendance is explained by the population of the province in which the club is based, and by both the current and historical performances of the team, and thirdly, that the club’s sporting revenues can be explained by their attendances. Given the importance of support, and in particular attendance, to the revenues of football clubs, the conceptual model developed in this article might contribute significantly to the estimation of cash-flows in football clubs.football (soccer) economics; attendance; sport performance; revenues