Mate choice in the domestic cat (Felis silvestris catus L.)

The domestic cat (Felis silvestris catus L.) has colonized different types of environments that differ in their spatial distribution of resources. Urban environments are characterized by highly clumped distributions of food and shelter, allowing domestic cats to live in large multimale‐multifemale groups. In such a situation, questions arise about male and female mating strategies. In particular, do females exert active mate choice? We tested this question using behavioural records on acceptance and refusal of males by estrous females. Our results showed that most females copulated with several males during a single estrus period. The variability of female behaviour was high: six females copulated with all courting males whereas three others mated with most courting males; six others copulated with half or less of the courting males. Even if some females copulated with certain males more often than with others, the identity of the most successful males changed each time. These results show that most females did not choose mates among different males available. The results are discussed in terms of optimal reproductive strategies of males and females in an urban environment. Aggr. Behav. 26:455–465, 2000. © 2000 Wiley‐Liss, Inc.     

Infanticide in rural male cats (Felis catus L.) as a reproductive mating tactic

Here we report six cases of infanticide in the domestic cat directly observed in populations located in the rural environment. This is the first time that infanticide in domestic cats has been witnessed directly and described. All infanticidal males were fully adult and sexually mature unknown males. All kittens killed were within their first week of life. The killing pattern was generally the same as that described in lions. All females reacted aggressively but could not prevent the infanticide. Three hypotheses are discussed : (1) infanticide is a remnant of cat male reproductive strategy selected in the original environment; (2) the conditions of the rural environment have created a selection pressure encouraging a polymorphism of infanticidal and noninfanticidal males to evolve; (3) infanticide is an abnormal behaviour caused by environmental conditions such as human disturbance. Aggr. Behav. 25:445–449, 1999. © 1999 Wiley‐Liss, Inc.     

Resistance and vulnerability to trauma: the moderator effect of personality variables on secondary traumatic stress

The purpose of this study was to examine the role of several personality variables (empathy, comprehensibility, challenge and sense of humour) as moderators of the relationship of job demands (traumatic task and overload) with secondary traumatic stress. 175 emergency professionals of the Community of Madrid completed the Secondary Traumatic Stress Measure (STSM). The results of the hierarchical multiple regression analysis provide evidence for the moderator role of personality variables in the secondary traumatic stress process. Lastly, the discussion emphasises the need to focus on the interaction between personality and job demand variables in order to advance our understanding of the process of trauma in emergency professionals.     

Grooming and coalitions in Japanese macaques (Macaca fuscata): partner choice and the time frame reciprocation

Evidence of a reciprocal exchange of grooming and agonistic support in primates is mixed. In this study, the authors analyzed a large database of grooming and coalitions in captive female Japanese macaques (Macaca fuscata) to investigate their within-group distribution and temporal relations. Macaques groomed preferentially those individuals that groomed them most and supported preferentially those individuals that supported them most. They also supported preferentially those individuals that groomed them most and groomed preferentially those individuals that supported them most. These results were not explained by covariation of grooming and support with third variables such as kinship, rank, or time spent in proximity. However, receiving grooming did not increase the short-term probability of supporting a partner, and being supported did not increase the short-term probability of grooming a partner. The proximate mechanisms underlying the exchange of services were discussed in relation to the time frame of the behavioral choices made by the monkeys.     

Sex bias in hiring: Effects of job demands and applicant competence

Managers in a large corporation evaluated application materials representing one of eight hypothetical job candidates. In order to examine the effects of two types of information on sex bias, three factors were manipulated in a factorial design: (1) Applicants were either male or female engineers; (2) they appeared highly competent or moderately competent based on academic performance; (3) they were applying for an engineering job that entailed either technical engineering tasks or managerial tasks in addition to the technical tasks. Greater discrimination against women occurred in evaluations for the technical-managerial job, even with highly competent applicants. These results are explained in terms of ambiguity: Because it was not obvious that applicants would succeed on the additional managerial tasks, the evaluators resorted to stereotypes in order to make their predictions.     

Social context and historical emergence: The underlying dimension of medical ethics

I argue that work in medical ethics which attempts to humanize medicine without examining hidden assumptions (about medicine's ontology, explanations, goals, relationships) has the dehumanizing effect of legitimating practices which treat persons as abstractions. After illustrating the need to reexamine the field of medical ethics and the doctor-patient relationship in particular, I use Foucault's work to provide a social, historical framework for discussion. This background begins to demonstrate that doctor-patient relationships cannot be made satisfactory by new hospital policies or interpersonal skills, but have deep-rooted problems due to medicine's place in social history. Real progress requires social or structural change.     

A Chilean version of the Efficient Personality Questionnaire for Adolescents

This investigation aims at adapting the test for Efficient Personality in educational contexts to Chilean reality. This instrument measures the construct efficient personality , made up of four levels of the self: strengths, requests, challenges and relationships. The original version has 58 items. In order to adapt it to our reality, 30 items were modified. The instrument was applied to a sample of 594 third and fourth secondary level students from four educational institutions of Vi?a del Mar. The new version of the instrument (23 items) presents a .85 reliability coefficient. The factorial analysis shows a structure of four basic factors which explain 50.42 % of the total variance. These factors, which are very similar those proposed in the original instrument, are named as academic self realization, social self realization, solving efficiency, and self steem. The second order factors analysis reveals a single factors structure that explains 43,28 % of the total variance, thus confirming the presence of the only factor that would correspond to the efficient personality construct presented.     

Jewish identity and intentions to obtain breast cancer screening

This study explored the associations between 2 dimensions of Jewish identity (cultural identification and religious practice) and intentions to perform breast cancer screening. Ashkenazi Jewish women (N = 220) completed surveys as part of an ongoing study of breast cancer risk counseling. Multiple regressions examined the relationships between the 2 identity measures and intention to follow routine recommendations for mammography, intention to perform monthly breast self-exam, and interest in genetic testing for breast cancer susceptibility. Cultural identity positively predicted interest in testing, whereas religious identity was inversely related. Religious identity was a significant predictor of intention to adhere to mammography recommendations. Findings show that culture and religion, although correlated, may have different associations with health attitudes.     

The effects of sex and sex-role concept on self-disclosure

Socialization into traditional sex-role concepts has been offered as an explanation of sex differences in self-disclosure. The present experiment tested a derivation of this hypothesis: Androgynous males would self-disclose more intimately than sex-typed males. A 2×2×2×2 factorial design was used with sex of subject, sex-role concept of subject, sex of target person, and disclosure level of target person as the independent variables. The results failed to demonstrate an overall difference between androgynous and sex-typed males, while significant sex differences and a strong reciprocity effect were obtained. With both male and female subjects, androgynous subjects did disclose more than sex-typed subjects when the target person had exhibited high disclosure. The findings are discussed in terms of two hypotheses: (1) compliance to a social norm regarding male disclosure to strangers; (2) flexibility of the disclosing behavior of androgynous subjects.An earlier version of this paper was presented at the meeting of the Eastern Psychological Association, Washington, D.C., March 1978. The authors are indebted to two anonymous reviewers for their suggestions concerning this article.