Socially transmitted food preferences can be used to study long-term memory in rats

Immediately after a recently fed rodentdemonstrator interacts with a conspecificobserver, the observer shows a substantially enhanced preference for whatever food its demonstrator ate. Here we show that (1) influence of a single, 30-min interaction with a demonstrator on an observer’s food preference lasts for at least 1 month, and (2) observers interacting on 2 successive days with a demonstrator fed a different diet on each day show significantly enhanced preferences for both diets a month later. Such enduring effects of single, brief interactions between a demonstrator rat and its observer provide an efficient means for studying physiological and behavioral substrates of long-term memory in rodents. Together with the results of previous studies of social influences on food choices of rats, the present results also suggest that rats may use information acquired from conspecifics to identify both toxic and safe foods for many weeks after they have acquired this information.     

Textbook treatments and students' understanding of acceleration

A single science textbook often provides the syllabus for courses at upper secondary and tertiary levels, and may be used as a principal source of information or explanation. The research reported in this article challenges such practices. The ways in which the concept, acceleration, is treated in physics textbooks is compared with understandings of the concept demonstrated by final-year secondary (Year 12) and first-year university students. Some students' understandings are shown to be incomplete in ways that parallel misleading or inaccurate textbook treatments of the concept. In addition to misleading or inaccurate statements, the limitations of some textbook treatments of acceleration were found to include: lack of attempts to make explicit relationships with other concepts, failure to point out when it is appropriate to use particular definitions or that an alternative definition might be more appropriate in specific situations, inclusion of operational definitions without conceptual explanations, and a focus on quantitative treatments while overlooking the development of qualitative understanding. Two principal aspects that distinguished the ways in which the students understood acceleration were identified: (a) the relation between acceleration and velocity; and (b) the relation between acceleration and force(s). The results of the study have implications for teaching and, in particular, for the use of textbooks in teaching. These implications are discussed in the article.     

Each One Unique

A young mother shares the stories of her two sons'' births. Her first birth experience was complicated by muscle spasms and changes in her baby''s heart rate during labor and, later, by medical problems with her baby in the days after birth. The mother''s strength and commitment shine through at every twist and turn during labor and the days after her son''s birth. Two years later, in contrast to her first son''s birth, the mother''s second son was born so quickly that labor presented a different set of challenges. The mother''s confidence in birth and in herself are essential facets of the stories of the births of her two sons.     

Coping strategies for adaptation to new teacher appointments: Intervention for retention

Findings are presented from a qualitative longitudinal collective case study of 29 teachers newly appointed to rural or remote schools in Western Australia. All participants experienced stress and articulated coping strategies in response: direct-action, palliative and avoidant strategies. Where protective structures and processes existed in environments, teachers employed direct-action problem-solving strategies. Avoidant strategies were more common in young and mature-aged novices, rather than experienced teachers.Three critical times were identified to support adaptation: first weeks of appointment for information, first semester for assistance, support, feedback for development of competence and three months before the year-end for stability and certainty.     

Exploring Gender and Phenomenography

A critical feature of phenomenographic study is its generation of the “outcome space” which constitutes the results of the study. The central idea underlying this article is that women may be “lost in space" — the phenomenographic outcome space. First, women seem to be literally missing in the majority of phenomenographic studies. These studies have usually been in fields in which women are poorly represented and in research samples in which women have not been present. Second, the traditional disciplines of study, the values of which largely determine the structure of the typically hierarchical outcome space, are patriarchal. Without attention to the hidden as well as the explicit aspects of what learners are coming to know, the understanding that we gain from the outcome space may be distorted. Third, the outcome space tends to be defined in many studies in cognitive terms, excluding or neglecting the affective dimension often associated with women's ways of knowing. This article explores the implications of looking for and elaborating on women's experience in phenomenographic research and suggests several ways in which women's experience might be recognised: by ensuring that women are included in research; by questioning in gender‐sensitive ways; by collecting and analysing the data with attention to the gendered construction of disciplinary knowledge and gendered ways of knowing.     

The transfer of content knowledge in a cascade model of professional development

A cascade model of professional development presents a particular risk that ‘knowledge’ promoted in a programme will be diluted or distorted as it passes from originators of the programme to local trainers and then to the target teachers. Careful monitoring of trainers’ and teachers’ knowledge as it is transferred through the system is therefore imperative. This paper focuses on the transfer of content knowledge through an in-service teacher professional development programme and offers an innovative methodology for investigating knowledge transfer, i.e. through insights gained during a mentoring process. The findings suggest that this methodology facilitated assessment of knowledge transfer because it involved the identification of knowledge in practice. The focus on knowledge in practice appeared to avoid a deficit model of trainers’/teachers’ knowledge and revealed that content knowledge was generally being successfully transferred throughout the system. A detailed analysis of different aspects of content knowledge transfer suggested various foci for additional training.     

Who's In Charge Of Quality? The Governance Issues In Quality Assurance

Tertiary Education and Management - This essay, exploring the general question of how quality assurance has changed the relationship between government and higher education, discusses two important...