The Influence of the Relationship and Motivation on Inequity Aversion in Dogs

One crucial element for the evolution of cooperation may be the sensitivity to others?? efforts and pay-offs in comparison with one??s own costs and gains. If an individual responds to a disadvantageous reward distribution, then it would likely increase its relative fitness compared with those who do not (Brosnan & de Waal, Nature 428:140, 2004). Recent experimental research indicates that sensitivity toward unequal reward distribution is not a uniquely human trait; non-human primates react to inequity if they witness a conspecific that obtains a more attractive reward for the same effort. However, primates are not the only species that cooperate and thus would benefit from inequity aversion. Canids also frequently cooperate with group members (e.g., wolves, wild dogs, etc.) or humans (domestic dogs), allowing for the possibility that they also are sensitive to the reward distribution. We report the findings of two studies of dogs?? responses to inequity and the social factors that mediate such responses. In the first study, we investigated whether domestic dogs showed a response to the inequity of rewards received for the same action in pairs of familiar dogs. We found that dogs showed significant behavioral differences when tested without food rewards when in the presence of a rewarded partner compared to the baseline and asocial control situations. This indicated that the presence of a rewarded partner matters (Range, Horn, Virányi, & Huber, Proc Natl Acad Sci USA 106(1):340?C345, 2009). In contrast to primates, dogs did not react to differences in the quality of food or effort. In the second study, we analyzed whether individual (motivational or personality) characteristics determined the response of each subject to unequal reward distributions or whether the subject??s responses depended on the specific relationship they had with its partner. We found that individual motivation and the quality of the relationship influenced the dogs?? performance in test conditions, but that these factors varied across the control and reward inequity conditions. Overall, our results suggest that inequity aversion in dogs is conditional on their and their partner??s rewards. Whether inequity aversion is based on the same mechanisms in both humans and non-human primates is still unclear.     

The EDNAP mitochondrial DNA population database (EMPOP) collaborative exercises: organisation, results and perspectives

This paper presents an overview of the organisation and the results of the collaborative exercises (CE) of the European DNA Profiling (EDNAP) Group's mitochondrial DNA population database project (EMPOP). The aim of the collaborative exercises was to determine whether uniformity of mtDNA sequencing results could be achieved among different laboratories. These were asked to sequence either the complete mtDNA control region or the two hypervariable regions HVI (16024-16365) and HVII (73-340) from DNA extracts, buccal swabs or bloodstains, proceeding in accordance with the protocol and strategies used in each individual laboratory. The results of the collaborative exercises were employed to identify possible sources of errors that could arise during the analysis and interpretation of mtDNA profiles. These findings were taken as a basis to tentatively make suitable arrangements for the construction of a high quality mtDNA database. One hundred fifty mtDNA profiles were submitted to the evaluating laboratory, and disaccording profiles were classified into four groups corresponding to the source of error: clerical errors, sample mix-ups, contaminations and discrepancies with respect to the mtDNA nomenclature. Overall, 14 disaccording haplotypes (16 individual errors) were observed. The errors included 10 clerical errors, 3 interpretation problems, 2 cases of sample mix-up and 1 case of point heteroplasmic mixture, where the 2 sequencing reactions brought inconsistent base calls. This corresponds to an error rate of 10.7% in a virtual mtDNA database consisting of the collaborative exercise results. However, this estimate is still conservative compared to conclusions drawn by authors of meanwhile numerous publications critically reviewing published mtDNA population databases. Our results and earlier published concerns strongly emphasize the need for appropriate safety regulations when mtDNA profiles are compiled for database purposes in order to accomplish the high standard required for mtDNA databases that are used in the forensic context.     

Alternative Ulster? Political Parties and the Non-constitutional Policy Space in Northern Ireland

This article uses data from a survey of the candidates in the 2003 Northern Ireland Assembly election to measure the policy positions of the Northern Irish political parties on scales that are the usual measurements of party policy in Western Europe, such as on economic and social issues, the European Union, morality issues, environmental issues and minority groups. These data were then used to test whether the Northern Ireland party system was conducive to integration or consociationalism, which is the current debate on conflict resolution in Northern Ireland. It argues that this debate has been under-theorised and that empirical data can be used to test the likelihood of either scenario. It concludes that, in most aspects, the Northern Ireland party system tends towards the consociational scenario but there are, nevertheless, aspects which suggest that an integrationist scenario could be produced in the long term.     

Institutional Actors in the Brazilian Amazon: Possibilities for NGO and Public Sector Collaboration in Rural Agriculture

Public sector institutions in Amazonian Brazil are experiencing structural reforms, budget cuts, and overburdened missions. Services needed to support appropriate resource use practices by rural farmers are gradually being provided by NGOs where the public sector has failed to provide them. But local NGOs are institutionally weak, and their activities are poorly coordinated with other regional service providers. This article analyzes three models for NGO organization and partnership that were designed outside of the Amazon region, and tests their applicability to the small-farming sector in Pará State in the eastern Brazilian Amazon. With some adaptation, these models can effectively help coordinate three overarching needs in the region: institutional strengthening, regional planning, and improving program effectiveness and efficiency.     

Co-occurrence and Correlates of Posttraumatic Stress Disorder and Major Depression in Physically Abused Women

Ninety two women presenting for treatment for marital problems and who were physically victimized by their spouses (e.g., pushing, shoving, punching) within the past year participated in this study. There were three study objectives: (1) document rates and co-occurrence of posttraumatic stress disorder (PTSD) and Major Depressive Disorder (MDD), (2) identify predictors of PTSD and depression symptom frequency/severity, and (3) systematically evaluate disorder-specific group differences in marital- and marital violence-related factors. Within the month prior to assessment, 29.8% of the sample met diagnostic criteria for PTSD and 32% for MDD. MDD and PTSD were significantly, but moderately, correlated at both the symptom and diagnosis levels. However, PTSD symptom frequency and depression symptom severity were predicted by different marital- and marital violence-related factors. PTSD symptoms were predicted by spouse's dominance/isolation tactics and intensity of husband-to-wife physical aggression while depressive symptoms were predicted by marital discord and intensity of husband-to-wife physical aggression. Comorbid women and those with PTSD only reported significantly more spousal fear and husband-to-wife physical aggression than those with MDD only or neither disorder. No group differences were found on rate of marital discord or spouse's controlling/isolating tactics. Results are discussed in terms of theoretical and treatment implications for abused women seeking treatment for marital conflict.     

Predictors of Physical Competence in Adolescent Girls

Physical competence, comprising athletic competence and physical appearance competence, is positively related to feelings of self-worth in adolescent girls. This study compared the relationships of psychological, physiological, and maturational constructs with perceived physical competence in adolescent girls. Perceived physical appearance and perceived athletic competence, peer acceptance, body weight, body mass index (BMI), aerobic fitness (VO₂max), physical activity level, and menarcheal status were assessed. Global self-worth was highly correlated with peer acceptance, perceived physical appearance, and perceived athletic competence in this sample. Regression analyses indicated that peer acceptance was the best predictor of perceived physical competence. Additional predictors of perceived physical appearance and athletic competence are discussed. Results suggest that postmenarcheal and larger girls may be at risk for low perceptions of physical competence. Enhancing competence feelings among adolescent girls may be accomplished by emphasizing friendship and social interaction within physical activity.     

Do Substance Use Risk Personality Dimensions Predict the Onset of Substance Use in Early Adolescence? A Variable- and Person-Centered Approach

Various studies found personality to be related to substance use, but little attention is paid to the role of personality risk dimensions with regard to an early onset of alcohol, tobacco, and marijuana use. Therefore, the current study used a variable-centered approach to examine whether anxiety sensitivity, hopelessness, sensation seeking, and impulsivity predict the onset of alcohol, tobacco, and marijuana use in early adolescence. Additionally, we adopted a person-centered approach to examine whether different personality subgroups could be identified, and whether these subgroups would be predictive of substance use. For that purpose, longitudinal data of a broader effectiveness study were used from 758 early adolescents (53?% female) aged 11–14?years. Structural equation models showed that hopelessness and sensation seeking were predictive of having ever used alcohol and tobacco. Also, sensation seeking was predictive of marijuana use. Latent profile analyses on the first wave data revealed a three-profile solution for boys (i.e., resilients, internalizers, and externalizers) and a two-profile solution for girls (i.e., resilients and internalizers). In contrast to our expectation, further analyses revealed no significant differences in substance use between the different subprofiles for both boys and girls. The separate personality dimensions thus seem more relevant in predicting the onset of substance use compared to the personality profiles. However, the personality profiles might be informative in explaining more excessive substance use behaviors.     

Text, Commentary, Annotation: Some Reflections on the Philosophical Genre

This essay is an attempt to analyze, classify and illustrate different scholarly approaches to the Sanskrit philosophical commentaries as reflected in some influential and especially thoughtful studies of Indian philosophy; at the same time it highlights some specific features involving commentary and annotation in general, drawing from results of studies on commentaries conducted in other disciplines and fields, such as Classical and Medieval Studies, Theology, and Early English Literature. In the field of South Asian Studies, philosophical commentaries may be assessed from various overlapping and not always exclusive points of view, such as preservation of otherwise lost historical information, historical authenticity and reliability, interpretational innovation, spiritual or experiential insight, philosophical creativity, intellectual liveliness, doxographic intent, degree of incidentality, expository breadth and explanatory depth. The essay provides numerous examples taken from classical to early modern philosophical literature, especially of the Brahminical and Buddhist traditions, and also discusses their diverging perception by modern scholars and interpretators.