Impulsivity traits and gambling cognitions associated with gambling preferences and clinical status

Impulsivity (and related traits reward/punishment sensitivity and tolerance to delayed rewards) and gambling cognitions have been linked to gambling. However, their independent associations with gambling preferences and clinical status have never been dissociated. The current study applied a data-driven strategy to identify gambling preferences, based on gambling frequency in several modalities. The two resulting factors were used to classify gambling disorder patients (GDPs) and non-problem recreational gamblers (RGs) into Type I (preferring cards, casino games and skill-based bets) and Type II (preferring slot machines, lotteries/pools and bingo). Participants were assessed in impulsivity, delay discounting, reward/punishment sensitivity, gambling-related cognitions, gambling severity, gambling frequency and average amount gambled per episode. GDPs scored higher than RGs in positive and negative urgency, delay discounting, reward sensitivity and intensity of gambling-related cognitions, but less in lack of perseverance. Additionally, Type II gamblers had greater difficulties delaying gratification, whereas Type I gamblers showed higher cognitive distortion and reward sensitivity levels. In practical terms, the finding that some characteristics are equally pervasive in disordered gamblers independently of their preferences (affect-driven impulsivity), whereas others (distorted cognitions, reward sensitivity, delay discounting) are more prominent in one type or the other, provides a basis to establish targets’ priority in therapy.     

On the role of Prognostics and Health Management in advanced maintenance systems

The advanced use of the Information and Communication Technologies is evolving the way that systems are managed and maintained. A great number of techniques and methods have emerged in the light of these advances allowing to have an accurate and knowledge about the systems’ condition evolution and remaining useful life. The advances are recognised as outcomes of an innovative discipline, nowadays discussed under the term of Prognostics and Health Management (PHM). In order to analyse how maintenance will change using PHM, a conceptual model is proposed built upon three views. The model highlights: (i) how PHM may impact the definition of maintenance policies; (ii) how PHM fits within the condition-based maintenance; and (iii) how PHM can be integrated into reliability-centred maintenance programmes. The conceptual model is the research finding of this review note and helps to discuss the role of PHM in advanced maintenance systems.     

Land use as a mediating factor of fertility in the Amazon

Despite implications for both humans and the environment, a scant body of research examines fertility in forest frontiers. This study examines the fertility–environment association using empirical data from Ecuadorian Amazon between 1980 and 1999. Fertility dramatically declined during this period, and our empirical models suggest that households’ relationship to land partially explains this decline. Controlling for known fertility determinants such as age and education, women in households lacking land titles experienced a 27 % higher birth rate than did women in households with land titles. This suggests insecure land tenure was associated with higher fertility. Furthermore, each additional hectare of new pasture was associated with a 16 % higher birth rate, suggesting the potential role of a more stable and lucrative income source in supporting additional births. Findings from this research can help inform strategic policies to address sustainable development in frontier environments.     

Dating violence in young Mexican couples: a dyadic analysis / Agresiones en el noviazgo de universitarios mexicanos: un análisis diádico

This study analyses the frequency, perception, bidirectionality and degree of agreement in the occurrence of aggression committed and suffered in 100 heterosexual couples. The selection of the sample was non-probabilistic, with 100 Mexican male-and-female dyads (age range 18 to 25). We used a virtual questionnaire which evaluated the frequency of psychological, mild physical and sexual aggression committed and suffered by each member of the dyads. Psychological aggression was the most frequent, and no significant differences were found by sex except in sexual aggression committed by men. The women more often underestimated both the aggression they suffered from and that which they committed, primarily sexual aggression. Bidirectionality was found in all three kinds of aggression, and there was greater agreement between couples when the women were the aggressors than when the men were the perpetrators. More studies are needed on couple violence that include the perspective of both members of the dyad.     

Challenges for Divorced Parents: Regulating Negative Emotions in Post‐Divorce Relationships

Emotion regulation processes in post‐divorce parental relationships are analysed using thematic qualitative analysis. In two separate interview episodes, three and five years post‐divorce, 55 people were interviewed: 10 couples and 35 individuals. Two themes emerged on how parents deal with their negative emotions after divorce. The first theme, emotion regulation flexibility, reveals how some parents effectively regulate negative emotions following the divorce. The second theme, emotion regulation rigidity, reveals that other parents retain feelings of anger, hostility, and resentment following the divorce as a consequence of dysfunctional emotion regulation strategies. This allows a deeper understanding of the processes of emotion regulation in family conflict, which may be easily applied in most therapeutic orientations.     

Incorporation of Migrant Students Returning From the United States to High Schools in Mexico

The purpose of this research was to identify the difficulties faced by the Mexican migrant students when incorporated into the Mexican education system after having studied in the United States of America. Thirty migrant middle school students, two principals, two social workers and one teacher participated in the study. The study (conducted in two phases) collected information regarding: school admission, adjustment to the school organization, adaptation to learning situations and the perception of school belonging. The main problems found during the admission and enrolment procedures in Mexican schools are: language use, diagnostic assessment, didactic processes that take place in the classroom, complementary support activities, grade repetition, very little family involvement and the separation of the students from their migrant parents.     

Measuring Socio-Demographic Differences in Volunteers with a Value-Based Index: Illustration in a Mega Event

The phenomenon of volunteering can be analysed as a consumer experience through the concept of value as a trade-off between benefits and costs. In event volunteering, both the expected value (pre-experienced) and the perceived value (post-experienced) of volunteering can be assessed. With this purpose, an online quantitative survey is conducted with a sample of 711 volunteers in a religious mega event, with questions related to five dimensions of their experience: efficiency, social value, play, spirituality and time spent. These five scales, properly tested are used for building a multidimensional index of both the expected and perceived value of the volunteer experience. ANOVAs test show significant differences on the index in both moments upon the socio-demographic profiles: negative expectations/experience balance by age, contrasted results by sex, and more experienced volunteers being more critical with the value experienced. Implications for event managers are proposed, in line with the motivation of volunteers.     

Responsibility and Privacy — Ethical Aspects of Using GPS to Track Children

With GPS technology, children can be monitored 24 h a day throughout their childhood and teens. In spite of the advantages in terms of safety and security, there are ethical problems with this. In this article, some of these are discussed. First, the concept of parental responsibility is explored and discussed in the context of GPS and children. Second, against the background of psychological research, it is argued that it is not conducive for children's sense of responsibility to be constantly monitored. Third, the question whether children have a right to privacy is discussed. It is concluded that due to the considerable uncertainty concerning the effects of constant monitoring as well as the ethical problems discussed, we ought to adopt a cautious attitude to using GPS to track children.     

Collinearity: revisiting the variance inflation factor in ridge regression

Ridge regression has been widely applied to estimate under collinearity by defining a class of estimators that are dependent on the parameter k. The variance inflation factor (VIF) is applied to detect the presence of collinearity and also as an objective method to obtain the value of k in ridge regression. Contrarily to the definition of the VIF, the expressions traditionally applied in ridge regression do not necessarily lead to values of VIFs equal to or greater than 1. This work presents an alternative expression to calculate the VIF in ridge regression that satisfies the aforementioned condition and also presents other interesting properties.