La présent étude examine aspect de l'écologie chimique de la Pyrale du maïs (Ostrinia nubilalis, Hübner, Lepidoptera: Crambidae). L’isolement reproducteur des phérotypes et leur spécialisation à la plante hôte ont reçu une attention particulière. Toutes les expériences ont été conçues pour avoir des informations pertinents sur le plan écologique des signaux chimiques libérés ou perçu par la Pyrale du maïs pendant la période de reproduction. La plupart des travaux en cadre de cette thèse dans des conditions naturelles et en tenant compte de tous les traits comportementaux de la Pyrale. Premièrement, le paysage chimique du champ de maïs a été étudié pour connaître les signaux chimiques rencontrés par une femelle de Pyrale du maïs qui est à la recherche d’une plante hôte. Les mélanges des volatiles qui composent l'environnement olfactif du champ de maïs a été identifié et leurs rôles discutés selon la biologie et le comportement d’oviposition de la Pyrale du maïs.Deuxièmement, en tenant compte de la périodicité du comportement de la Pyrale du maïs nous avons étudié les modifications circadiennes des profils des volatiles libérés par les plantes individuelles du maïs et par le champ du maïs.Troisièmement, le fidélité d’hôte plantes de la Pyrale du maïs a été étudié. Les volatiles libérés par différentes plantes hôtes au moment de vol d’oviposition ont été identifiés et le comportement de ponte a été étudié dans le tunnel du vol.Quatrièmement, les signaux chimiques impliqués dans l'isolement reproducteur des phérotypes de la Pyrale du maïs a été étudié. Nous nous sommes concentrés sur la phéromone mâle produite par les pinceaux androconiaux et sur leur rôle dans le comportement de cour. / The present PhD study investigates the aspect of chemical ecology in the European corn borer (ECB, Ostrinia nubilalis Hübner, Lepidoptera: Crambidae): pherotypes reproductive isolation and host plant specialisation.All the experiences were designed to have ecologically relevant information about the chemical signals released or perceived by ECB moth during the reproduction period. Most of the work was conducted close to natural conditions and taking into account all the behavioural traits of ECB.First we investigated what can be the chemical landscape of maize field for host-seeking ECB moth. The whole volatile blends that make up the olfactory environment of maize field biotope was identified according to the ECB oviposition behaviour (Paper I). Secondly taking into account the diel periodicity of ECB behaviour we studied the diel changes of volatile profiles released from maize plant and from maize field (Paper II). Thirdly, we studied the process of host fidelity within the ECB host plants. The volatiles released from different host plants at the time of ECB oviposition flight were identified and the oviposition behaviour was studied in wind tunnel to evidence the host plant preferences of ovipositing females (Paper III). Fourthly, we address the question on assortative mating in ECB pherotypes and we investigated the chemical signals involved in the reproductive isolation in ECB pherotypes. We focused on the male pheromone produced by hairpencils and on courtship behaviour (Paper IV).

In this thesis I propose that the representation of the prison is an untapped and valuable resource for non-traditional representations of the queered male, homo-sex and sexualities. I draw together texts on prison and sexuality from the 1800s to the 2000s in order to discuss the representation of prison in light of what it adds to a wider historical understanding of sexuality. The thesis is broadly chronological in form, analysing academic and theoretical texts in context alongside popular cultural representations. I reassess the ways in which sexuality is viewed and understood over time, and place homosexuality within the framework of wider male sexuality as represented in the prison. I theorise a re-imagining of homosexuality within normative male sexuality and I challenge the concept of ‘situational sex' through the complex issues behind understandings of sex in prison. My research methodology includes close textual analysis of representations of prison in literature, film and television alongside academic and theoretical texts on sexuality, gender and queer theory. Each chapter focuses on specific cultural texts, including Against the Law (1957), Birdman of Alcatraz (1962) Short Eyes (1977), Scum (1977, 1979) and Oz (1997-2003). By drawing the representations and the theories together I am able to provide a re-reading of the texts within a recognition of sexual fluidity and the reclassification of heterosexual males and gender hierarchies. In my research I argue that the representation of sex in prison re-writes sexuality and contributes to a reading of the queering potential of the cultural representation of prison. With this method I challenge conventional understandings of sexuality as well as perceptions of how male sexuality is viewed in popular culture. I argue that the cultural representation of the prison is a site of queer potentiality in form, idea and context and is a means to re-imagine male sexuality.

<p>The main purpose of the study was to assess and explore the knowledge of HIV/AIDS among secondary learners in rural Bergville district of KwaZulu-Natal. A stratified random sample of 100&nbsp / learners was selected from two secondary schools in the area. Data was collected using a questionnaire and interviews were scheduled with the teachers from the selected schools. The&nbsp / questionnaire was administered to a sample of 54 learners from school A and 46 from school B. The mean age was 16, with age range from 13-20. The participants were enrolled for grade&nbsp / 8-12 in both schools. Both qualitative and quantitative data on learners‟ knowledge and perception about HIV/AIDS, condom use and sexual issues including their attitudes towards people living with HIV/AIDS were collected in the questionnaire. Chi-square test was used for statistics purpose to test if the HIV knowledge of learners were associated with gender, culture and&nbsp / religion. Qualitative interviews with 9 teachers from both schools were conducted. The main purpose of the interviews was to investigate the management of HIV/AIDS in public schools in rural&nbsp / areas. Furthermore, to assess the learner‟s attitude towards HIV/AIDS education provided in schools. The results showed that the learners in Bergville district were more knowledgeable of&nbsp / HIV/AIDS through HIV/AIDS education in schools that had limited effect on gender, culture and religion. Quantitative findings presented, indicated no significant differences between those&nbsp / learners attending church and cultural activities that offer&nbsp / HIV/AIDS awareness programmes and those who do not with regard to the knowledge of HIV/AIDS. However, culture stood out to be associated with one item on the knowledge of whether school children can get HIV/AIDS (p-value = 0.04). On average, the level of knowledge of HIV/AIDS between female and male learners was similar. The major findings on both quantitative and qualitative findings confirmed that learners‟ knowledge levels were very high for modes of transmission and prevention of HIV/AIDS. Despite this knowledge, poor&nbsp / behavioural change among learners is a major setback thus increasing high risk of contracting HIV. Adequate knowledge about issues of cure, HIV testing and treatment was of concern in the findings in this study. Furthermore, data from qualitative interviews with the teachers highlighted the lack of multisectoral response to HIV/AIDS in Bergville rural communities which thus&nbsp / compromise the effectiveness in management of HIV/AIDS in schools. In summary, the study revealed some of the challenges faced by teachers and learners in regard to HIV/AIDS education.</p>

Chlamydia trachomatis (CT) can cause infertility and is the most common sexually transmitted infection (STI) of bacterial origin in Europe. Surveys in seven countries estimated a population prevalence of 1.4-3.0 % in people 18 to 44 years. Approximately 87% of those diagnosed in Sweden are 15-29 years. Since 1997, with the exception of 2009-2010, despite all efforts, CT has increased steadily in many European countries including Sweden. That made us investigate risk factors associated with catching STIs, especially CT. In Sweden partner notification is mandatory by law when a patient is diagnosed with CT. Centralised partner notification, performed by a few experienced counsellors, and evaluation of the sexual history for at least 12 months back in time, shows superior results compared to other studies. Phone-interviews are a good option in remote areas. “The Västerbotten model” for partner notification fulfils these criteria and our evaluation has functioned as a model for changing recommendations of partner notification in Sweden. Preventing CT by primary prevention such as information and counselling is, however, still of great importance. We investigated whether it was necessary to test for CT in the throat. We found that patients testing positive for pharyngeal CT neither had more symptoms or signs nor a sexual history that differed from others. We therefore believe that we will find most or all of these patients by conventional testing of urine and cervical/vaginal samples. We wanted to further identify risk factors among patients attending a clinic for sexually transmitted infections to enable individualized care depending on risk. None or inconsistent use of condoms with new/temporary partners in combination with having at least one new/temporary partner within the past 6 months could identify persons with risk behaviour and at increased risk of CT (re)infection. Additional information about whether the condom was used during the whole intercourse did not add any risk of infection. A drop-in reception is a good contribution to an opportunistic screening approach. The rate of CT infected is high and the clinic attracts men and individuals ≥25 years old at risk of infection, groups which usually have a reduced test rate. The mean age was 28 years and 58% of the patients were men. The figure of correct condom usage is very low indicating the need for risk reducing counselling also in this grown-population. Among adult STI patients anxiety was common and depression uncommon. Neither was linked to high risk sexual behaviour nor ongoing CT infection. Hazardous alcohol consumption, however, was common and linked to anxiety and high risk sex. We conclude that preventive work can not only focus on STI prevention, but must consider the high frequency of hazardous alcohol consumption, which probably is contributing to sexual risk behaviour.

The attitude of the African male to contraception and the role he plays in the acceptance of contraceptives by his racial group is presented. Over a period of one month the researcher interviewed 220 African males at a primary care private practice. In this study 186 (85%) were aware of contraceptives and 34 (15%) had no knowledge of contraception; 111 (60%) were married and 75 (40%) were unmarried. The 26 - 35 year age group were the most familiar with contraception (57%). The unemployed were the least users of contraceptives (8%), whereas 69% of the professional group were using contraceptives. The average ideal family size of the group was 4 children. No significant cultural barriers to contraception were found. Religion was found to have little effect on contraceptive practice by the African male. Fifty-three percent of the Urban dwellers were using contraceptives compared with only 30% of the Rural inhabitants. Modern methods of contraception are not yet sufficiently known by the African male to be useful to him. Health workers should educate the African male in matters of contraception to achieve the desired objectives of family planning campaigns among this racial group. / Thesis (M.Prax.Med.)-University of Natal, Durban, 1986.

Teenage childbearing has been a cause for concern in South Africa. A number of studies claim that early childbearing has been increasing, while other studies indicate that say it has remained constant. Despite lack of consensus on the trend, there is agreement that the levels are high. The Reproductive Health Research Unit (2003) survey reported that close to 15 percent of teenage women become pregnant between the ages of 15 to 19 years. Teenage childbearing has raised major concerns for government, researchers and communities (Cherry et al, 2001). Researchers have identified a number of factors which contribute to teenage childbearing. Lately, there has been an ongoing debate about the introduction of social security system (Child Support Grants), which is meant to assist in alleviating child poverty. Some argued that Child Support Grants has contributed in high pregnancies among teenagers. However, the research on the relationship between Child Support Grants and teenage childbearing has not been consistent. This study explored sexual and reproductive patterns observed among teenagers. The focus was on understanding experiences of school going adolescents. The study also aimed to establish the environment surrounding childbearing in schools and the perception of child support grants through interviewing key informants and teenagers themselves. In summary, the study collected qualitative and qualtitative information from teenagers and teachers in schools, and from teenagers collecting CSG from paypoints. Findings from this sudy indicate that sexual practices among teenagers are complex. Teenagers are aware of the negative effects around early sexual initiation and childbearing support. However despite of this awareness, the study shows that more than half (52.7 percent) of teenagers become sexually at an early age more males (53.7 percent) than females (46.3 percent) were sexual active. Of the sexually active teenagers, findings show that 26.7 percent had their first sexual intercourse at the age of 15 years, 22.0 percent at 14 years, and 16.8 percent at the age of 16 years. The median age at sexual debut for both males and females was 14 years. While, teenagers without children were most likely to report that teenage mothers are having children to receive CSG, but teenage mothers did not confirm this. It was also interesting to discover that more males than females believed that teenagers take advantage of CSGs. However, indings clearly indicate that there are mixed perceptions with regard to impact of CSG on teen childbearing. / Thesis (M.A.)-University of KwaZulu-Natal, Durban, 2012.

A growing body of research has explored the relationship between attachment styles and sexual behaviour, although these two systems, along with care-giving, are theorized to constitute romantic love (Fraley & Shaver, 2000; Hazan & Shaver, 1987). The purpose of this study was to examine the relationship between attachment styles and risky sexual behaviour in young adults. A secondary aim was to explore the relationship between particularly risky sexual behaviours and participants’ membership to an attachment dimension. In addition to this, the role of self-esteem as a moderating effect on risky sexual behaviour and attachment dimension was examined. A questionnaire survey was administered to a convenience sample of 211 undergraduate university students with ages ranging from 17 to 24 years. The gender make up of this sample constituted 80 males (37.9%) and 131 Females (62.1%). The Past and Present Sexual History Questionnaire was used to measure risky sexual behaviour. Attachment dimensions were calculated by means of the Adult Attachment Scale (AAS) and the Rosenberg Self-Esteem Scale (RSE) was used to determined participants self-esteem. / Thesis (M.Soc.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2008.

Research on risk and resilience related to behaviour and poor health outcomes among young people consistently indicates the need to take greater cognisance of social and environmental factors. This is particularly true of research in developing countries. In South Africa, there is a paucity of research on these issues. This study attempts to examine risk and protective factors, as well as coping style of young South Africans at the University of Natal, Pietermaritzburg. Environmental risk and protective factors measured were related to family, peers, and financial support. Categories of risk behaviour and poor health outcomes measured were substance use, sexual behaviour, general risk behaviour and depression. Broad-based questionnaires were sent to 2000 randomly selected students aged between 18 and 24 years old, and completed by 678 students. Results indicated that there was a trend towards gender equalisation in levels of risk and poor health outcomes- that there were significant relationships between many risk behaviours and poor health outcomes- that coping styles were correlated with risk behaviour and poor health outcomes in the expected direction (avoidance coping correlated positively and approach coping correlated negatively with risk behaviour, poor health outcomes and environmental risk factors)- and that environmental risk factors (low family, peer, and financial support) were associated with high levels of risk behaviour and poor health outcomes including sexual risks and depression. A contextual model was employed to explain the importance of environmental factors and coping styles in the promotion of health and wellbeing. / Thesis (M.A.)-University of Natal, Pietermaritzburg, 2001.

<p>The main purpose of the study was to assess and explore the knowledge of HIV/AIDS among secondary learners in rural Bergville district of KwaZulu-Natal. A stratified random sample of 100&nbsp / learners was selected from two secondary schools in the area. Data was collected using a questionnaire and interviews were scheduled with the teachers from the selected schools. The&nbsp / questionnaire was administered to a sample of 54 learners from school A and 46 from school B. The mean age was 16, with age range from 13-20. The participants were enrolled for grade&nbsp / 8-12 in both schools. Both qualitative and quantitative data on learners‟ knowledge and perception about HIV/AIDS, condom use and sexual issues including their attitudes towards people living with HIV/AIDS were collected in the questionnaire. Chi-square test was used for statistics purpose to test if the HIV knowledge of learners were associated with gender, culture and&nbsp / religion. Qualitative interviews with 9 teachers from both schools were conducted. The main purpose of the interviews was to investigate the management of HIV/AIDS in public schools in rural&nbsp / areas. Furthermore, to assess the learner‟s attitude towards HIV/AIDS education provided in schools. The results showed that the learners in Bergville district were more knowledgeable of&nbsp / HIV/AIDS through HIV/AIDS education in schools that had limited effect on gender, culture and religion. Quantitative findings presented, indicated no significant differences between those&nbsp / learners attending church and cultural activities that offer&nbsp / HIV/AIDS awareness programmes and those who do not with regard to the knowledge of HIV/AIDS. However, culture stood out to be associated with one item on the knowledge of whether school children can get HIV/AIDS (p-value = 0.04). On average, the level of knowledge of HIV/AIDS between female and male learners was similar. The major findings on both quantitative and qualitative findings confirmed that learners‟ knowledge levels were very high for modes of transmission and prevention of HIV/AIDS. Despite this knowledge, poor&nbsp / behavioural change among learners is a major setback thus increasing high risk of contracting HIV. Adequate knowledge about issues of cure, HIV testing and treatment was of concern in the findings in this study. Furthermore, data from qualitative interviews with the teachers highlighted the lack of multisectoral response to HIV/AIDS in Bergville rural communities which thus&nbsp / compromise the effectiveness in management of HIV/AIDS in schools. In summary, the study revealed some of the challenges faced by teachers and learners in regard to HIV/AIDS education.</p>

This study investigates male sexual behaviour and protective practices in the context of a generalized HIV/AIDS epidemic in Mozambique. It focus on how gender norms, particularly notions of masculinity influence sexual behaviour and the ability of men (and women) to protect themselves against HIV infection. A combination of qualitative and quantitative methods is used in this study. The qualitative data comes from 16 focus group discussions and 20 in-depth interviews and the quantitative data comes from a survey conducted with 209 men and 217 women. This methodological approach has proven useful in exploring complex and sensitive matters such as sexual behaviour. In this study, where it was possible, the findings from the survey were supported by quotes from focus groups discussions and in-depth interviews. The findings of this study reveal that traditional gender norms, particularly rigid notions of masculinity are still prevalent in the study settings. The existing notions of manhood are mostly associated with traditional views of men as providers and main breadwinners. In contrast, women are seen as the family caregivers. Practices which bring social prestige both in the community and in the society at large are highly valued for men. Meanwhile, traditional notions of masculinity face enormous challenges in the existing socio-economic context which is characterized by a lack of employment and widespread poverty. This has negative consequences for male self-esteem including their sense of manhood. The study shows that some men believe that having multiple sexual partners is part of male identity and is supported by culture. Similarly, some women also believe that a man cannot be satisfied with one partner or stay long without having sex. These beliefs have important implications in a country with a high prevalence of HIV/AIDS. The study found that traditional notions of manhood prevent men from accessing correct health information thereby perpetuating the cycle of harmful practices for themselves and their females partners. The findings of this study suggest that despite a universal awareness of HIV infection and protective strategies, multiple sexual partnerships and unprotected sex among heterosexual men and women are the driving force sustaining the HIV/AIDS pandemic in the study settings. This is worsened by the widespread negative meanings attached to condoms. The study shows that the level of condom use (31 percent among men and 20 percent among women) is encouraging but not sufficient to curb the level of HIV infections. Consistent condom use remains a major challenge as much fewer men and women report using condoms in all their sexual encounters. / Thesis (Ph.D.)-University of KwaZulu-Natal, Durban, 2010.