Administration of inhalation anesthetics to small animals: Some problems and solutions

Some problems inherent in administering inhalation anesthetics to small laboratory animals in studies of memory consolidation are discussed. A simple and inexpensive apparatus which has been designed to eliminate some of these problems is described.     

De kunstgeschiedenis in het licht eener algemeene Geesteswetenschap

Ohne Zusammenfassung     

Variability of attention bias in socially anxious adolescents: differences in fixation duration toward adult and adolescent face stimuli

Prior research on attention bias in anxious youth, often utilising a visual dot probe task, has yielded inconsistent findings, which may be due to how bias is assessed and/or variability in the phenomenon. The present study utilises eye gaze tracking to assess attention bias in socially anxious adolescents, and explores several methodological and within-subject factors that may contribute to variability in attention bias. Attention bias to threat was measured in forty-two treatment-seeking adolescents (age 12–16 years) diagnosed with Social Anxiety Disorder. Bias scores toward emotional stimuli (vigilant attention) and bias scores away from emotional stimuli (avoidant attention) were explored. Bias scores changed between vigilance and avoidance within individuals and over the course of stimulus presentation. These differences were not associated with participant characteristics nor with self-reported social anxiety symptoms. However, clinician rated severity of social anxiety, explained a significant proportion of variance in the bias scores for adult, but not the adolescent, stimuli. Variability in attention bias among socially anxious adolescents is common and varies as a function of stimulus duration and type. Results may inform stimulus selection for future research.     

A Comparison of Sexual Relationships Among Hispanic Men by Sexual Orientation: Implications for HIV/STI Prevention

Hispanic men experience high rates of HIV infection and other sexually transmitted infections (STIs) when compared to non-Hispanic whites. Many factors contribute to HIV/STI risk among Hispanic men. Some researchers have suggested that primary relationships may be a source of HIV/STIs because some men engage in sexual relationships outside of the primary relationship. However, little is known about this among Hispanic men, and less is known about how sexual relationships differ by sexual orientation. The purpose of this study was twofold: (1) to determine if Hispanic men engage in sexual relationships outside of primary relationships; and (2) to compare sex outside of primary relationships by sexual orientation. Data for this study were obtained from a larger study that investigated health risks of Hispanic men residing in the U.S.–Mexico border community. Participants were recruited from agencies that provided services to Hispanic men. Participants completed a structured interview that included questions about primary relationships and sex outside of primary relationships. The sample consisted of 103 Hispanic men (50 heterosexual, 43 gay, and 10 bisexual Hispanic men), but two participants refused to answer relationship questions, resulting in a sample of 101 Hispanic men. About one-third of the participants (n = 29) reported sex outside of the primary relationship, but no differences were found between the gay/bisexual and heterosexual men, X ² (2, N = 101) = 9.91, p = .128. More gay/bisexual men reported sex with the primary partner and another person at the same time than heterosexual men, X ² (2, N = 101) = 13.32, p = .010. More gay/bisexual men reported open relationships when compared to heterosexual men, X ² (2, N = 101) = 17.23, p = .008, and more gay/bisexual men reported sex outside the primary relationship without the primary partner’s knowledge, X ² (2, N = 101) = 15.09. p = .020. However, more heterosexual men reported that condoms were not used for sex outside the primary relationship when compared to gay/bisexual men, X ² (2, N = 101) = 14.01, p = .029. Sex outside of primary relationships presents some implications for HIV/STI prevention among Hispanic men. Because gay/bisexual men experience higher rates of HIV/STI, more attention needs to be focused on all forms of relationships to prevent acquisition of HIV/STIs. Among heterosexual Hispanic men more attention needs to be given to reinforcement of safer sex practices both outside the primary relationship, and within the primary relationship if high risk sex is occurring outside the primary relationship. More research is needed on the reasons for sex outside the primary relationship among Hispanic men, as well as research to promote safer sex practices when sex occurs outside of the primary relationship.     

Complex Systems from the Perspective of Category Theory: II. Covering Systems and Sheaves

Using the concept of adjunction, for the comprehension of the structure of a complex system, developed in Part I, we introduce the notion of covering systems consisting of partially or locally defined adequately understood objects. This notion incorporates the necessary and sufficient conditions for a sheaf theoretical representation of the informational content included in the structure of a complex system in terms of localization systems. Furthermore, it accommodates a formulation of an invariance property of information communication concerning the analysis of a complex system.     

The Effect of Instructor Gender and Race/Ethnicity on Gaining Compliance in the Classroom1

How instructors' gender and race impacts their ability to gain compliance in the classroom when utilizing various bases of social power was investigated using a 2 × 2 × 3 between‐subjects design. Male and female participants (n = 297) completed the Interpersonal Power Inventory while viewing a photo depicting an instructor. The instructors depicted were male or female of varying ethnicities (Caucasian, African American, and Latino). Results indicated that instructor gender and race influenced student compliance rates when soft (subtle and noncoercive) bases of power were utilized. With regard to individual power bases, student gender, instructor gender, instructor race, and the Instructor Gender × Instructor Race interaction were found to impact compliance rates. Implications for classroom instructors, as well as other powerholders, are discussed.     

Social competence in Zimbabwean multicultural schools: Effects of ethnic and gender differences

S tudents' social competence was investigated in relation to race/ethnicity and gender for a sample of 371 Zimbabwean students attending racially/ethnically integrated schools. About 42% of the students were black, and 58% white (mean age 12 years; SD=9 months). Peer and teacher sociometric ratings of children's social behaviour, social responsibility, and friendliness comprised the social competence measures. Tests of empirical independence among these social competence measures supported their uniqueness in reliably assessing components of the general construct of social competence among Zimbabwean students. Multiple analysis of variance procedures were used to examine the relationship between social competence statuses and group membership (i.e., race/ethnicity, gender) while controlling for aggregate scores and classroom racial proportions. Superior academic achievement and racial/ehnic propinquity are social status levelling factors in multiracial school settings. Teachers rated white students higher on social responsibility and social behaviour. Students rated white students higher on social responsibility only. Comparisons of social competence by ethnicity and gender revealed that white and female students were rated significantly higher on social behaviour and social responsibility than their black and male classmates. Female students were perceived as more socially competent or better adjusted to school than males. Reliable differences in social competence in race/ethnicity and gender groups were concentrated in peer ratings of social responsibility and in teacher ratings of social behaviour and social responsibility. In postcolonial settings or settings with a history of race/ethnicity and gender‐based privilege, minorities from a dominant culture may have higher social status than peers from a majority culture. Superior social competence in females is a resource for school adaptation and social climate. Students have perceptions of social competence in peers that only partially overlap with those of teachers and contribute uniquely to their experience of school. Social competence in students is multifaceted, gendered, and differently perceived by teachers and peers.     

Latent inhibition and context change in psychometrically defined schizotypy

The disruption of latent inhibition within the schizophrenia spectrum has often been interpreted either as a result of increased attentional distractibility (attentional account) or as a result of deficient interference of past associations (associative account). The aim of the present investigation was to test competing predictions, as derived from the above theoretical accounts. In a visual search paradigm of latent inhibition, accuracy was examined as a function of prior experience with the target, and psychometrically defined schizotypy. In Experiment 1 (N=60), no context change was introduced. In accord with past evidence, latent inhibition was found to be intact in low-, but disrupted in high-schizotypy scorers, a result predicted both by attentional and associative accounts. In Experiment 2 (N=60), a context change was introduced. As predicted by past evidence, latent inhibition was disrupted in low-schizotypy scorers. However, latent inhibition was found to be intact in high-schizotypy scorers, a finding accommodated by attentional, but not associative accounts. Theoretical implications and alternative interpretations are also considered.     

From a Distance: Pastoral Care and Theological Education

Abstract. This article is a presentation and discussion of a seminary course on the Corinthian Correspondence. The pedagogical model for this course was structured to parallel the pattern of Paul's pastoral care from a distance as he relates to the Corinthian congregation by personal visits, delegations from and to the congregation, letters from and to the congregation, and unofficial grapevine types of communication. The course was designed for dispersed students to interact with the Corinthian letters, with each other, and with myself as instructor in ways that 1) simulate a first‐century exchange between congregation and apostle and 2) facilitate careful interpretive work on the message of these letters, including their contemporary relevance.     

Using Past Performance, Proxy Efficacy, and Academic Self-Efficacy to Predict College Performance

This study examined the ability of prior academic performance, proxy efficacy, and academic self-efficacy to predict college academic performance. Participants ( N  = 202) completed a modified version of the Teacher Collective Efficacy scale ( Goddard, 2001 ), the Academic Self-Efficacy scale ( Elias & Loomis, 2000 ), and a demographic questionnaire. Prior performance was predictive of both academic self-efficacy beliefs and college performance. Hierarchical regression analysis indicates that academic self-efficacy beliefs explain a significant amount of unique variance beyond past performance in predicting college performance. Proxy efficacy did serve as a predictor of student academic self-efficacy, but did not serve as a predictor of college performance. Implications for instructors, as well as for future research, are discussed.