The relationship between dominance and spawning inHerotilapia multispinosa (Pisces: Cichlidae)

The outcomes of fights between all possible pairs of same-sexed individuals were used to infer the within-sex dominance rank of six male and six femaleHerotilapia multispinosa. The resulting dominance hierarchies were compared with the order in which all 12 fish spawned when placed together in a large aquarium. Two replications of dominance rank assessment and spawning order were carried out. The spawning order of females was highly correlated with their dominance rank in both replications. Males spawned in a similar order in both replications but did not form a stable dominance hierarchy as inferred from the outcomes of fights. It is suggested that this finding may be due to the importance of site attachment in the agonistic behavior of maleH. multispinosa.     

A Transformative Model for Undergraduate Quantitative Biology Education

The BIO2010 report recommended that students in the life sciences receive a more rigorous education in mathematics and physical sciences. The University of Delaware approached this problem by (1) developing a bio-calculus section of a standard calculus course, (2) embedding quantitative activities into existing biology courses, and (3) creating a new interdisciplinary major, quantitative biology, designed for students interested in solving complex biological problems using advanced mathematical approaches. To develop the bio-calculus sections, the Department of Mathematical Sciences revised its three-semester calculus sequence to include differential equations in the first semester and, rather than using examples traditionally drawn from application domains that are most relevant to engineers, drew models and examples heavily from the life sciences. The curriculum of the B.S. degree in Quantitative Biology was designed to provide students with a solid foundation in biology, chemistry, and mathematics, with an emphasis on preparation for research careers in life sciences. Students in the program take core courses from biology, chemistry, and physics, though mathematics, as the cornerstone of all quantitative sciences, is given particular prominence. Seminars and a capstone course stress how the interplay of mathematics and biology can be used to explain complex biological systems. To initiate these academic changes required the identification of barriers and the implementation of solutions.     

Bureaucratic governance,family economies and the 1930s NSW teachers’ marriage bar,Australia

This paper reports the findings of an analysis of a collection of Statutory Declaration forms completed by teachers seeking exemption from dismissal under the NSW Married Women (Lecturers and Teachers) Act (1932–1947). Most sought exemption on hardship grounds, recording details of their husbands’ inability or unwillingness to provide them with ‘adequate’ support. The collection offers insight into the gendered finances of a particular group during the 1930s Depression, revealing some complex interdependencies—such as the need to support extended kin—and offering insights into the role of the state in the making of the family as a social and economic unit. The bureaucratic apparatus of regulation and standardised paperwork operated materially and discursively to distinguish the exceptional (salaried married women) from the more desirable or legitimate order of gendered responsibilities (financially dependent wives). Finally, the forms are strikingly silent about the professional teaching work of the women.     

Perception of value congruence and interethnic behavioral intentions

Two studies were conducted to investigate the effects of ethnocentrism, cognitive differentiation and extent of contact/information experienced with three stimulus groups varying in ethnicity on (a) respondents' perceptions of similarity in personal values between themselves and members of these ethnic groups, and (b) social distance orientations toward these groups. None of the predictor variables systematically induced differential attributions of value similarity. Ethnocentrism was found to be the most potent determinant of social distance, with low ethnocentric persons showing less social distance toward ethnic outgroups. The results were generally compatible with the notion of social competition proposed by Turner (1975) as a relevant factor in interethnic relations and are discussed in relation to the belief differences theory of prejudice (Rokeach, Smith & Evans, 1960) and the concept of positive prejudice (Dienstbier, 1970; Dutton, 1976).     

The Effects of Variety of Activities on the Social Interaction of Preschool Children with Disabilities

Analysis of previous research has indicated that restricting the amount of equipment available may be a practical strategy to facilitate peer interaction in childcare, but a disadvantage is a possible increase in aggressive behaviour. An alternative approach is manipulating the variety of activities while holding the quantity and type of equipment consistent. The effect of such an intervention was examined on social interaction of two children with disabilities including severe language problems. A single case alternating treatment design was used to compare the effectiveness of eight activities, as opposed to four activities with the quantity of equipment doubled. There was no consistent clinically significant difference in social interaction when the variety of activities was varied for the children in this study. It is possible that the language delay of the participants may have attenuated the effect of the intervention, and this possibility warrants further investigation.     

A Conceptual Examination of Setting Events

Setting events are typically seen as antecedent contextual variables that influence behaviour. They are thought to act independently of Skinner's three‐term contingency, which consists of a discriminative stimulus, response, and reinforcing consequence. There has been increasing interest in setting events in education from both a theoretical and applied perspective. This paper examines a range of conceptualisations of setting events and appraises the extent to which they can be viewed as a discrete class of phenomena. Variation in the terminology used to describe setting events and lack of clarity in consideration of explanatory mechanisms tends to hinder analysis. Nevertheless, a number of plausible explanations exist to account for setting events associated with both conditioned and unconditioned reinforcers. While the conceptual underpinnings of setting events remain unclear in part, they do serve the function of drawing our attention to a wide range of antecedent variables that may influence behaviour. Resolution of issues related to consistency of terminology and clarification of our conceptual understanding of setting events may provide further guidance in their practical application to behaviour.