Optimal immune responses : immunocompetence revisited

The function of the immune system of an animal is to provide defence against infection, in order to maximize fitness. Understanding this and, particularly, how limiting resources are traded off between costly immune responses and other physiological demands, is central to properly understanding life-history traits and their evolution. Here, we propose that functional (rather than immunological) measures of immune responses should be used when investigating this. We further suggest that optimal immune responses are context specific, rather than generic; that is, a maximum immune response is not necessarily optimal. The nature of an optimal immune response will depend on the specific circumstances and infection status of the animal. Identifying and understanding such optimality requires that the effects of different immune strategies on fitness be considered.

My baby body : a qualitative insight into women's body-related experiences and mood during pregnancy and the postpartum

An inductive qualitative approach was employed to explore women's experiences of their body and mood during pregnancy and the postpartum. In-depth interviews were conducted with 20 perinatal women (n at late pregnancy=10; n in the early postpartum period=10). While most of the sample reported adapting positively to body changes experienced during pregnancy, the postpartum period was often associated with body dissatisfaction. Women reported several events unique to pregnancy which helped them cope positively with bodily changes (e.g. increased perceived body functionality, new sense of meaning in life thus placing well-being of developing foetus above body aesthetics, perceptual experiences such as feeling baby kick, increased sense of social connectedness due to pregnancy body shape, and positive social commentary); however, these events no longer protected against body dissatisfaction post-birth. While women reported mood lability throughout the perinatal period, the postpartum was also a time of increased positive affect for most women, and overall most women did not associate body changes with their mood. Clinical implications of these findings included the need for education about normal postpartum body changes and their timing, and the development of more accurate measures of perinatal body image.

Depressive and anxiety symptoms through late pregnancy and the first year post birth : an examination of prospective relationships

One hundred and fifty-nine women were measured for depressive and anxiety symptoms from late pregnancy through to 12 months postpartum. Partial correlations revealed stability of depressive and anxiety symptoms across time. Depressive symptoms did not predict anxiety at any time point. Anxiety predicted increases in depressive symptoms from late pregnancy to early postpartum, but not from early postpartum to mid postpartum. Anxiety predicted depressive symptoms from mid postpartum to late postpartum, however, not when social support in late pregnancy was controlled for.

Mermaids and sirens as myth fragments in contemporary literature

This thesis examines three works: Margaret Atwood's The Robber Bride and Alias Grace, and Angela Carter's Nights at the Circus. All three novels feature female characters that contain elements or myth fragments of mermaids and sirens. The thesis asserts that the images of the mermaid and siren have undergone a gradual process of change, from literal mythical figures, to metaphorical images, and then to figures or myth fragments that reference the original mythical figures. The persistence of these female half-human images points to an underlying rationale that is independent of historical and cultural factors. Using feminist psychoanalytic theoretical frameworks, the thesis identifies the existence of the siren/mermaid myth fragments that are used as a means to construct the category of the 'bad' woman. It then identifies the function that these references serve in the narrative and in the broader context of both Victorian and contemporary societies. The thesis postulates the origin of the mermaid and siren myths as stemming from the ambivalent relationship that the male infant forms with the mother as he develops an identity as an individual. Finally, the thesis discusses the manner in which Atwood and Carter build on this foundation to deconstruct the binary oppositions that disadvantage women and to expand the category of female.

Historical fictions : the historical novel in Australia during the 1930s and 1940s

The thesis examines historical novels written in Australia during the 1930s and 1940s, providing close readings of Xavier Herbert's Caprocornia, Miles Franklin's All That Swagger, M. Barnard Eldershaw's Tomorrow and Tomorrow and Tomorrow, Katherine Susannah Prichard's goldfields trilogy, and Eleanor Dark's The Timeless Land. No attempt has been made at encyclopaedic completeness. The organising principle behind the study relates, instead, to the question of the status of the historical novel as a genre. The thesis considers the importance of genre in literary theory, and reflects on the construction of Australian literary history, which in the post-war period has consistently involved a debunking of historical fiction. In the first chapter, various approaches to historical fiction are considered, special attention being paid to Lukacs's The Historical Novel. This leads on to an examination of Marxist approaches to literature, including Frederic Jameson's The Political Unconscious, in order to establish some of the coordinates of the subsequent analysis. While Lukacs's study represents an inadequate theoretical basis for an examination of the historical novel, his popular frontism suggests a useful context for an examination of historical fiction written in Australia during the 'thirties and 'forties, raising the question of the relationship between literature and ideology during this period. The thesis, however, embraces a wider ideological spectrum than the Popular Front, including P.R. Stephensen's 'Australia First' Movement, as well as Katherine Susannah Prichard's communism. The next two chapters are devoted to a consideration of Capricornia and All That Swagger, novels P. R. Stephensen praised in the columns of The Publicist for being 'authentically Australian'. The thesis is generally concerned with the question of the relationship between Australian nationalism and literary production, a concern which is taken up in the following chapter, where Tomorrow and Tomorrow and Tomorrow and Prichard's goldfields trilogy are examined in connection with the Popular Front. Eleanor Dark's development as a writer forms the subject matterof the concluding chapters of this study, when the significance of the historical novel for writers of her generation is established through considering the importance of the historical novel within her oevre.

Using site as the medium of image-making at Tower Hill

[No Abstract]

Professional identity and pedagogical space : negotiating difference in teacher workplaces

This paper explores ‘spatial struggle’ in the formation of professional identities of overseas born teachers. The basis of this struggle arises from a limited number of subject positions available for them in pedagogical spaces of the Australian system of education. We argue that relations of power/professional knowledge in teacher workplaces as well as the binary strategy of ‘us’ and ‘them’ generate marginal locations for overseas born teachers within schools. This construction of marginality is informed not only by discourses of what counts as being a professional but also by the conception of workplace – spaces of the school, staffroom and classroom – as monocultural, pre-given and bounded entities (McGregor, 2003). By rethinking workplaces as relational, as spaces that are connected to other sociocultural places as well as spaces of semiotic flows, we can also rethink the professional becoming of overseas born teachers. This involves a critical understanding of their positionality, which can be conceptualised as a struggle for voice within “a cacophony of past and present voices, lived experiences and available practices” (Britzman, 1991, p.8). It is because of this polyphony of voices and multiplicity of experiences that the process of professional identity formation for ‘alien’ teachers should be seen as becoming in continual negotiation of power/knowledge relations within workplaces. Recognising this dynamic is important for re-constructing our pedagogical spaces and, in turn, for a more equitable workplace practices.

Professional identity and pedagogical space : negotiating difference in teacher workplaces

This paper explores "spatial struggle" in the formation of professional identities of overseas-born teachers. The basis of this struggle arises from a limited number of subject positions available for them in pedagogical spaces of the Australian system of education. We argue that relations of power/professional knowledge in teacher workplaces as well as the binary strategy of "us" and "them" generate marginal locations for overseas-born teachers within schools. This construction of marginality is informed not only by discourses of what counts as being a professional but also by the conception of workplace as a monocultural, pre-given and bounded entity. By rethinking workplaces as relational, as locations that are connected to other socioculturally produced places through spaces of semiotic flows, we can also rethink the professional becoming of overseas-born teachers. This involves a critical understanding of their situationality, which can be conceptualised as a struggle for professional recognition, voice and place within the real and imagined communities of teachers.

Changes in body image satisfaction during pregnancy : a comparison of high exercising and low exercising women

Objective: This study aimed to compare ratings of body image satisfaction (BIS) from 6 months prepregnancy to 23–30 weeks’ gestation for high exercising and low exercising pregnant women. The authors also aimed to assess and compare expectations of BIS for the post-partum period in high and low exercising women.

Design: A partial prospective approach was Implemented.

Sample: A total of 71 healthy pregnant women (40 high exercisers and 31 low exercisers) participated.

Methods: Participants completed a series of questionnaires at 15–22 weeks’ gestation and 23–30 weeks’ gestation.

Main outcome measures: There were two main outcome measures. At 15–22 weeks’ gestation there was an exercise inventory and two versions of the Body Cathexis Scale (BCS) (retrospective prepregnancy BIS and current BIS). At 23–30 weeks’ gestation there was an exercise inventory and two versions of the BCS (current BIS and projected post-partum BIS).

Results: At 15–22 weeks’ gestation, high exercisers demonstrated significantly higher levels of BIS compared to low exercisers. There were no other significant differences between groups. Within groups, high exercisers were significantly more satisfied with their bodies at 15–22 weeks’ gestation compared to 6 months prepregnancy, and expected to be less satisfied with their bodies at 6 weeks’ post-partum than they were during pregnancy. Low exercisers demonstrated no significant changes over time.

Conclusions: The findings suggest that women are able to assimilate the bodily changes of pregnancy without a negative shift in BIS. However, women who exercise during pregnancy may respond more favourably to changes in their bodies at early pregnancy compared to women who remain sedentary.

Vigorous exercise and birth outcomes in a sample of recreational exercisers : a prospective study across pregnancy

Objective: This study examined the question of whether vigorous exercise undertaken by recreational exercisers across pregnancy, defined in two ways, were associated with reduced infant birthweight and gestational age at birth.

Methods: A prospective approach was implemented. A total of 148 pregnant women participated. Average intensity duration and frequency of vigorous exercise reported were examined and compared with two existing definitions of vigorous exercise. Participants completed questionnaires (including retrospective reports on 3 months prepregnancy) and an exercise diary at 16–23 weeks pregnancy, 24–31 weeks pregnancy and 32–38 weeks pregnancy, and at 7 to 14 days post-partum a birth outcomes questionnaire was completed.

Results: There were no significant differences between exercise groups for birthweight and gestational age at birth.

Conclusions: There was no evidence that the intensity duration and frequency of vigorous exercise were associated with significant reductions in mean birth outcomes for the infants of women who participated in the study. Replication in a large, more diverse sample is recommended.

Examination of a multi-factorial model of body-related experiences during pregnancy : the relationships among physical symptoms, sleep quality, depression, self-esteem, and negative body attitudes

The aim of this cross-sectional study was to investigate relationships among women's body attitudes, physical symptoms, self-esteem, depression, and sleep quality during pregnancy. Pregnant women (N = 215) at 15–25 weeks gestation completed a questionnaire including four body image subscales assessing self-reported feeling fat, attractiveness, strength/fitness, and salience of weight and shape. Women reported on 29 pregnancy-related physical complaints, and completed the Beck Depression Inventory, Rosenberg Self-esteem Scale, and Pittsburgh Sleep Quality Index. In regressions, controlling for retrospective reports of body image, more frequent and intense physical symptoms were related to viewing the self as less strong/fit, and to poorer sleep quality and more depressive symptoms. In a multi-factorial model extending previous research, paths were found from sleep quality to depressive symptoms to self-esteem; self-esteem was found to be a mediator associated with lower scores on feeling fat and salience of weight and shape, and on higher perceived attractiveness.

A prospective study of factors that lead to body dissatisfaction during pregnancy

This study examined changes in body image and predictors of body dissatisfaction during pregnancy. It was expected that higher levels of depression, social comparison tendencies, teasing, societal pressure to be thin and public self-consciousness would predict body dissatisfaction prospectively. Healthy pregnant women (n = 128) completed questionnaires on three occasions during their pregnancies reporting on a total of four time points: 3 months prior to pregnancy (retrospectively reported), in the early to mid-second trimester, the late-second/early-third trimester, and the latter part of the third trimester. For the most part women reported adapting to the changes that occurred in their body; however, women were most likely to experience higher levels of body dissatisfaction in early to mid-second trimester. Findings related to predictors of body dissatisfaction revealed that both social and psychological factors contributed to body image changes in pregnancy. Implications of the findings are discussed.

Depression and anxiety through pregnancy and the early postpartum : an examination of prospective relationships

Background: The aim of this study was to explore the prospective relationship between depressive symptoms and anxiety across pregnancy and the early postpartum.
Methods: Participants (N=207) completed the State–Trait Anxiety Inventory Trait subscale, Beck Depression Inventory, and social support and sleep quality measures at two time points during pregnancy and once in the early postpartum period.
Results: After accounting for the relative stability of anxiety and depression over time, depressive symptoms earlier in pregnancy predicted higher levels of anxiety in late pregnancy and anxiety in late pregnancy predicted higher depressive symptomatology in the early postpartum. A bi-directional model of depression and anxiety in pregnancy was supported.
Limitations: Data were based on self-reports and participating women were predominantly tertiary educated with high family incomes.
Conclusion: Our findings suggest that depressive symptoms precede the development of higher levels of anxiety and that anxiety, even at non-clinical levels, can predict higher depressive symptoms. Clinicians are advised to screen for anxiety and depression concurrently during pregnancy.