Red deer synchronise their activity with close neighbours

Models of collective animal behaviour frequently make assumptions about the effects of neighbours on the behaviour of focal individuals, but these assumptions are rarely tested. One such set of assumptions is that the switch between active and inactive behaviour seen in herding animals is influenced by the activity of close neighbours, where neighbouring animals show a higher degree of behavioural synchrony than would be expected by chance. We tested this assumption by observing the simultaneous behaviour of paired individuals within a herd of red deer Cervus elaphus. Focal individuals were more synchronised with their two closest neighbours than with the third closest or randomly selected individuals from the herd. Our results suggest that the behaviour of individual deer is influenced by immediate neighbours. Even if we assume that there are no social relationships between individuals, this suggests that the assumptions made in models about the influence of neighbours may be appropriate

Marriages of Convenience and Other Trade-offs: Exploring the Ambivalent Nature of Organizational Relationships

Depictions of organizational life have ranged from depictions of extreme alienation (Erikson, 1986) to extreme commitment (Butterfield, 1985; Kunda, 1992). However, the emotional portrait of workers may not be so easily captured by simple shades of positive or negative feelings. Rather, the rapid rate of change, the ever-increasing complexity, and the seeming incompleteness characteristic of social life in the twentieth century suggest that this is an "age of ambivalence" (Weigert & Franks, 1989). In the work place, individuals confront the realities of hyper-competitive market places, technologically mediated relationships, empowerment, and economic insecurity. These and other issues have become embedded in the social structure of organizations and affect the bonds between individuals and between individuals and their organization. The result, we argue, is that individuals often experience ambivalence: "overlapping approach-avoidance tendencies" (Sincoff, 1990) characterized by "mixed feelings" about their work groups and organizations. Despite the fact that ambivalence is inherent in modern life, and is a central concept in many social sciences (cf. Boehm, 1989; Freud, 1950/1920; Bowlby, 1982; Merton, 1976; Smelser, 1998), our understanding of ambivalence in organizations is limited. In this chapter, we examine the topic of emotional ambivalence in the context of work relationships. We have four major goals in this regard: (1) to briefly review the concept of ambivalence, especially emotional ambivalence; (2) to argue for the prevalence of ambivalence in individuals' relationships both with and in organizations; (3) to propose two major sources of ambivalence in these relationships; and (4) to offer a typology of responses that individuals use to cope with emotional ambivalence. To illustrate these goals, we draw upon two different cases, rural doctors whose practices have been recently bought out by a large managed care organization (referred to hereafter as HealthCo), and employees at bank call-centers. These cases reveal two types of ambivalent relationships in organizations. The case of the rural doctors illustrates how individuals can become ambivalent with their employing organization. Thus, it illustrates an individuals' ambivalence with their collective. The call-center, by contrast, primarily illustrates ambivalent relationships between bank call-center employees and co-workers, as well as between employees and customers. Thus, it shows us ambivalent relationships within (rather than with) an organization. We believe that both types of ambivalent relationships (both with and within) are likely to be common in modern organizations.

Gain versus pain from status and ambition: Effects on growth and inequality

To shed lights on growth, distribution and the relationships between the two, we develop a growth model with heterogeneous individuals who care about social status. Individuals' heterogeneity stems from two sources: their innate skills and their degree of ambition. While the willingness of individuals to accumulate wealth depends whether they experience gain or pain from loss of status, we show that ambition of individuals plays an important role regarding growth and distribution: ambition can inhibit or foster accumulation of wealth, then in turn growth. In such a context, we show that growth can be positively or negatively correlated with inequalities.social aspirations, ambition, inequality, growth

Assortative human pair-bonding for partner ancestry and allelic variation of the dopamine receptor D4 (DRD4) gene

The 7R allele of the dopamine receptor D4 gene has been associated with attention-deficit hyperactivity disorder and risk taking. On the cross-population scale, 7R allele frequencies have been shown to be higher in populations with more of a history of long-term migrations. It has also been shown that the 7R allele is associated with individuals having multiple-ancestries. Here we conduct a replication of this latter finding with two independent samples. Measures of subjects’ ancestry are used to examine past reproductive bonds. The individuals’ history of inter-racial/ancestral dating and their feelings about this are also assessed. Tentative support for an association between multiple ancestries and the 7R allele were found. These results are dependent upon the method of questioning subjects about their ancestries. Inter-racial dating and feelings about inter-racial pairing were not related to the presence of the 7R allele. This might be accounted for by secular trends that might have substantively altered the decision-making process employed when considering relationships with individuals from different groups. This study provides continued support for the 7R allele playing a role in migration and/or mate choice patterns. However, replications and extensions of this study are needed and must carefully consider how ancestry/race is assessed

Borderline Personality Features and Integration of Positive and Negative Thoughts About Significant Others

Taking the bad with the good is a necessity of life, and people who readily integrate thoughts of their loved one’s flaws with thoughts of their more positive attributes maintain more stable, satisfying relationships. Borderline personality disorder, however, is often characterized by interpersonal perceptions that fluctuate between extremes of good and bad. We used a timed judgment task to examine information processing about significant others in individuals high in borderline personality features relative to healthy individuals and those high in avoidant personality features. In Study 1, when judging traits of a liked significant other, same-valence facilitation by negative primes (judging negative traits faster than positive traits after a negative prime) was significantly stronger in the borderline features group than the other two groups, and was inversely associated with self-reports of integrated thoughts about significant others. In contrast, same-valence facilitation by positive primes (judging positive traits faster than negative traits after a positive prime) was significantly stronger in the avoidant features group than the other two groups, and inversely associated with self-esteem. No between-group differences in same-valence facilitation were statistically significant when participants judged traits of disliked significant others, liked foods, and disliked foods. In Study 2, same-valence facilitation by negative primes when judging traits of a liked significant other was significantly associated with less integrated positive/negative thoughts about that person in a 12-day diary. These results identify an implicit information-processing pattern relevant to interpersonal difficulties in borderline personality disorder

Facebook Ruined My Marriage: Digital Intimacy Interference on Social Networking Sites

This study employed a mixed method approach to understand how Facebook interferes with romantic relationships. The methods included a qualitative textual analysis of 53 Facebook interest groups about marriage dissolution as a result of Facebook. The text consisted primarily of wall comments. However, images, links, and Facebook likes were also analyzed. Concepts were organized into themes that detailed how Facebook contributes to computer-mediated relationship dissolution, a concept dubbed digital intimacy interference (DII). The textual analysis also unveiled how and why individuals use Facebook groups to discuss DII. The textual analysis was then used to inform a quantitative study of individuals\u27 Facebook behavior and feelings about Facebook\u27s role in romantic relationships. The survey measured participants\u27 Facebook behavior and whether their behavior related to their feelings about Facebook and it\u27s role in romantic relationships. Correlation and independent sample t-tests were run to establish whether there is a relationship between certain Facebook behaviors and feelings about romantic relationships. The two methods were designed to generate a holistic understanding of the phenomenon of digital intimacy interference on social networking sites

Modeling of Responses and Response Times with the Package cirt

In computerized testing, the test takers' responses as well as their response times on the items are recorded. The relationship between response times and response accuracies is complex and varies over levels of observation. For example, it takes the form of a tradeoff between speed and accuracy at the level of a fixed person but may become a positive correlation for a population of test takers. In order to explore such relationships and test hypotheses about them, a conjoint model is proposed. Item responses are modeled by a two-parameter normal-ogive IRT model and response times by a lognormal model. The two models are combined using a hierarchical framework based on the fact that response times and responses are nested within individuals. All parameters can be estimated simultaneously using an MCMC estimation approach. A R-package for the MCMC algorithm is presented and explained.

Where’d You Hear That? Examining the Importance of Individuals and Institutions in Providing Knowledge to At-Risk Adolescents about Their Local Community

The purpose of this study was to explore the relationships between individuals and institutions when providing information to at-risk youth. This research examined how community issues are translated to 302 at-risk youth participants in two community-based after school programs. It specifically sought to identify the individuals and institutions where adolescents self-reported that they receive information from about community issues and whether there were relationships between these two entities. At-risk youth self-reported learning about community issues from key individuals and institutional connections. Positive correlations were found between all of the individuals and institutions, which indicate youth receive information about their communities from multiple individuals and institution types. The results provide important implications for institutions and individuals to consider as they work with youth

The Mathematics of Phylogenomics

The grand challenges in biology today are being shaped by powerful high-throughput technologies that have revealed the genomes of many organisms, global expression patterns of genes and detailed information about variation within populations. We are therefore able to ask, for the first time, fundamental questions about the evolution of genomes, the structure of genes and their regulation, and the connections between genotypes and phenotypes of individuals. The answers to these questions are all predicated on progress in a variety of computational, statistical, and mathematical fields. The rapid growth in the characterization of genomes has led to the advancement of a new discipline called Phylogenomics. This discipline results from the combination of two major fields in the life sciences: Genomics, i.e., the study of the function and structure of genes and genomes; and Molecular Phylogenetics, i.e., the study of the hierarchical evolutionary relationships among organisms and their genomes. The objective of this article is to offer mathematicians a first introduction to this emerging field, and to discuss specific mathematical problems and developments arising from phylogenomics.Comment: 41 pages, 4 figure

Relational implications of communication skill evaluations and love styles.

Abstract OnlyAs values placed by individuals on communication skills may associate with experiences of romantic love, this study explores relationships between communication values and the adoption of six major love styles (Lee, 1973). Two hundred and seventy‐two participants (119 males and 153 females) completed an expanded version of Burleson and Samter's (1990) Communication Functions Questionnaire, which generates judgments about the importance of several communication skills, and Hendrick and Hendrick's (1986) Love Attitudes Scale, which provides assessments of love styles. Results indicated numerous significant associations between communication values and love styles, sex differences in the evaluation of some communication values and in the adoption of some love styles, and that sex moderates relationships between some of the communication values and love styles