Music video and gendered pleasures in the lives of young women and men

The purpose of this thesis is to explore the cultural and social significance of music video in the lives of a group of young women and men. In so doing the thesis pays particular attention to issues of gender and pleasure. This research examines the interaction of a group of young people with music video in relation to four areas of research. Firstly, the importance of music video in terms of social interaction and the pleasure this entails is explored. Secondly the thesis looks at the ways in which gender is seen by the young people in this study to be established by music video performers. Thirdly, how gender becomes inscribed on the body is explored, and fourthly I examine the process of sexualization of the body. Theoretically this thesis draws upon feminist theory, poststructuralist theory, music video scholarship and educational theories. This eclectic approach has been necessary as this research speaks simultaneously to several distinct areas of scholarship: education, cultural studies and feminism. My research with a young audience of music video took place within a secondary school. Over two semesters I conducted research with two separate classes of Media Studies students who were aged fifteen and sixteen. A total of 49 students were interviewed, however I chose mainly to work with a small group of eleven students - five girls and six boys. The school where I conducted this research is located in a working class suburb of a provincial and industrial Australian city . The young people's social positioning in terms of class and ethnicity has been considered in some depth in relation to the construction of the gendered subject. Methodologically the thesis is skewed towards the audience, and also towards dealing with what is normally unspoken in the research process. For example, much academic research does not include the author of the research as an integral part of that research. In this thesis I include myself in a number of ways: historically, personally and as a feminist. This thesis places a high priority on ethics and the effects of research on those who participate in the research process. The thesis uses a number of research methods: structured interviews, informal conversations, memory-work and written responses to music videos. Generally the research methods used in this thesis have been developed reflexively; that is, they have developed directly in relation to the participants’ reactions, responses, suggestions, interests and comments. The research seeks to demonstrate the place of music video in the lives of the young people who participated in the study. I look at how the young people in this study connect music video to other cultural forms and social interactions. In this way the intertextuality of music video is demonstrated. The research looks at how young viewers 'read' the gender of music video performers, and how this affects their own gendering. The social and cultural meanings which are attached to certain parts of the body are also examined. Theorizing the body in terms of its social meanings is a significant part of this thesis. The research argues that young people often experience music video as pleasurable, and that music video can provide young people with access to powerful speaking positions. This is demonstrated through transcripts of our conversations and interviews, and also through the young people's written comments. However, these powerful speaking positions invariably invoke dominant discourses (homophobia and racism, for example). Thus the disruptive potential of music video is called into question. These dominant discourses are gendered in nature. Pleasure in the text (music video) and cultural inscriptions of gender on the body then, are realized differently for the girls and for the boys in this study. My research into music video, gender and young people has implications for research methodology generally, and for music video scholarship specifically. Music video scholarship to date has rarely focussed upon the audience of this cultural form. My research has certain implications for the ways in which research is currently conducted with young people in relation to popular culture generally, and music video specifically, and gendered subjectivity.

Isolation, characterization and structural determination of a unique type of arabinogalactan from an immunostimulatory extract of Chlorella pyrenoidosa

An arabinogalactan was isolated from a hot water extract of freeze-dried cells of the green microalga, Chlorella pyrenoidosa. This hot water extract is a proprietary immunomodulator, with the trademark Respondin™ (ONC-107). The arabinogalactan was recovered from the ethanol-soluble fraction of the supernatant resulting from a process that involved controlled ethanol precipitation followed by size exclusion chromatography on Sephadex G-100, then Cetavlon precipitation. Sugar analyses, GC–MS data for (S)-2-octyl glycosides, and 1D and 2D NMR experiments established unambiguously that the repeating unit was →2)-α-l-Araf-(1→3)-[α-l-Araf-(1→4)]-β-d-Galp-(1→. This structure does not fit into any of the known classes of arabinogalactans. SEC/MALS experiments gave a molecular mass for the arabinogalactan isolated as 47 ± 4 kDa but the original structure was probably larger.

Auditory localisation reversals and the role of torso-related cues

Human auditory localisation reversals are explored using mixture distribution analysis techniques. This is validated for front/back reversals and subsequently shown to provide evidence for up/down reversals as distinct classes of mis-localisation. Torso-related localisation cues are identified and also shown to provide a source for resolving these reversals in some listeners.

The ethics of care and treatment of sex offenders

The ethics of care acknowledges the importance of establishing and maintaining practices that help people to meet their needs, develop and protect basic capabilities for problem solving, emotional functioning, and social interaction, and avoid pain and suffering. In this article, we explore the contribution an ethics of care perspective can make to work with sex offenders. First, we briefly describe five classes of ethical problems evident in work with sex offenders. Second, the concept of care is defined and a justification for a version of care theory provided. Third, we apply the care ethical theory to ethical issues with sex offenders and demonstrate its value in responding to the five classes of problems outlined earlier.

Jaisa Desh, Waisa Vesh? Exploratory notes on the representations of adivasis in popular Hindi cinema

This paper seeks to discuss specific examples of Adivasi representation in Indian cinema, particularly popular Hindi cinema or ‘Bollywood’ (as opposed to ‘art’ or ‘parallel’ cinema). This choice of popular Hindi cinema is an attempt to explore the ways in which it has distilled and codified the representations of ‘other’ groups for a mass audience. Popular Hindi films have an unmatched circulation and pre-eminence (Prasad, 1998) in India, making the impact of their representations important to consider. Commercial interests of popular Hindi films are paramount, their producers and directors are generally from the upper castes and classes of Indian society. In the push for commercial interests and popular storylines, adequate representations of Adivasis, and as scholars (Vasudev & Lenglet, 1983; Bagchi, 1996; Subramanyam, 1996; Gopalan, 2000; Vridi, 2003) have pointed out women and other social groups, remain stereotypical. Mainstream Hindi cinema, even in its post-colonial phase, has not provided images of various cultural groups in India which reflect their lived reality. It is this cinematic marginalisation and cultural stereotyping, which will be explored further. This paper is a preliminary exploration and will look at particular examples of representation in Hindi films, including Naagin (1954), Ajantrik (1957), Madhumati (1958), Yeh Gulistan Hamara (1972), Lal Salaam (2002), and Chak De! (2007). It is aimed that this exploration will provide a foundation for further research into representations in Hindi cinema and the wider discourses of power, politics and inequality in Indian society.

Identification and characterization of Kava-derived compounds mediating TNF-alpha suppression

There is a substantial unmet need for new classes of drugs that block TNF-α-mediated inflammation, and particularly for small molecule agents that can be taken orally. We have screened a library of natural products against an assay measuring TNF-α secretion in lipopolysaccharide-stimulated THP-1 cells, seeking compounds capable of interfering with the TNF-α-inducing transcription factor lipopolysaccharide-induced TNF-α factor. Among the active compounds were several produced by the kava plant (Piper mysticum), extracts of which have previously been linked to a range of therapeutic effects. When tested in vivo, a representative of these compounds, kavain, was found to render mice immune to lethal doses of lipopolysaccharide. Kavain displays promising pharmaceutical properties, including good solubility and high cell permeability, but pharmacokinetic experiments in mice showed relatively rapid clearance. A small set of kavain analogs was synthesized, resulting in compounds of similar or greater potency in vitro compared with kavain. Interestingly, a ring-opened analog of kavain inhibited TNF-α secretion in the cell-based assay and suppressed lipopolysaccharide-induced TNF-α factor expression in the same cells, whereas the other compounds inhibited TNF-α secretion without affecting lipopolysaccharide-induced TNF-α factor levels, indicating a potential divergence in mechanism of action.

Conformational changes in redox pairs of protein structures

Disulfides are conventionally viewed as structurally stabilizing elements in proteins but emerging evidence suggests two disulfide subproteomes exist. One group mediates the well known role of structural stabilization. A second redox-active group are best known for their catalytic functions but are increasingly being recognized for their roles in regulation of protein function. Redox-active disulfides are, by their very nature, more susceptible to reduction than structural disulfides; and conversely, the Cys pairs that form them are more susceptible to oxidation. In this study, we searched for potentially redox-active Cys Pairs by scanning the Protein Data Bank for structures of proteins in alternate redox states. The PDB contains over 1134 unique redox pairs of proteins, many of which exhibit conformational differences between alternate redox states. Several classes of structural changes were observed, proteins that exhibit: disulfide oxidation following expulsion of metals such as zinc; major reorganisation of the polypeptide backbone in association with disulfide redox-activity; order/disorder transitions; and changes in quaternary structure. Based on evidence gathered supporting disulfide redox activity, we propose disulfides present in alternate redox states are likely to have physiologically relevant redox activity.

CM-based blind equalization of time-varying SIMO-FIR channel with single pulsation estimation

It is known that the constant modulus (CM) property of the source signal can be exploited to blindly equalize time-invariant single-inputmultiple-output (SIMO) and finite-impulse-response (FIR) channels. However, the time-invariance assumption about the channel cannot be satisfied in several practical applications, e.g., mobile communication. In this paper, we show that, under some mild conditions, the CM criterion can be extended to the blind equalization of a time-varying channel that is described by the complex exponential basis expansion model (CE-BEM). Although several existing blind equalization methods that are based on the CE-BEM have to employ higher order statistics to estimate all nonzero channel pulsations, the CM-based method only needs to estimate one pulsation using second-order statistics, which yields better estimation results. It also relaxes the restriction on the source signal and is applicable to some classes of signals with which the existing methods cannot deal.

Epizootiology of brucella infection in Australian fur seals

Novel members of the bacterial genus Brucella have recently emerged as pathogens of various marine mammal species and as potential zoonotic agents. We investigated the epizootiology of Brucella infection in Australian fur seals (Arctocephalus pusillus doriferus) by establishing demographic and temporal variations in antibody prevalence, attempting isolation of the causative agent, and determining whether this potential pathogen is involved in frequent abortions observed in this pinniped species. Two competitive enzyme-linked immunosorbent assays (cELISAs), an indirect ELISA, and a fluorescence polarization assay (FPA) were used to test sera for Brucella antibodies. The FPA and cELISA proved suitable for use in this species. Significant differences in antibody prevalence were found between age classes of seals sampled between 2007 and 2009 at one colony. Pups sampled at this site (n5134) were negative for Brucella antibodies by all serologic tests but 17 of 45 (38%) of juveniles were antibody-positive. Antibody prevalence in adult females was significantly higher than in juveniles (P50.044). Antibody prevalence for adult females between 2003 and 2009 varied significantly over time (P50.011), and for individuals sampled between 2003 and 2005, the likelihood of pregnancy was greater in individuals positive for Brucella antibodies (P50.034). Inflammatory lesions suggestive of infectious agents were found in 14 of 39 aborted Australian fur seal pups, but pathologic changes were not uniformly consistent for Brucella infection. Culture and PCR investigations on fetal tissues were negative for Brucella. Culture and PCR on selected fresh or frozen tissues from 36 juvenile and adult animals were also negative. We suspect that the prevalence of active infection with Brucella in Australian fur seals is low relative to antibody prevalence. © Wildlife Disease Association 2011.

Explicit state duration HMM for abnormality detection in sequences of human activity

The importance of explicit duration modelling for classification of sequences of human activity and the reliable and timely detection of duration abnormality was highlighted. The normal classes of behavior were designed to highlight the importance of modelling duration given the limitations of the tracking system. It was found that HMM was the weakest model for classification of the unseen normal sequences with 81% accuracy. Long term abnormality was investigated by artificially varying the duration of primary activity in a randomly selected test sequence. The incorporation of duration in models of human behavior is an important consideration for systems seeking to provide cognitive support and to detect deviation in the behavorial patterns.

Over-winter lipid depletion and mortality of age-0 rainbow trout (Oncorhynchus mykiss)

In this study we identify the size-dependent risk of winter starvation mortality as a strong selective pressure on age-0 rainbow trout (Oncorhynchus mykiss) that could promote the risk-taking behaviour and allocation of energy to lipids previously observed in young trout cohorts. Age-0 trout subjected to simulated winter starvation conditions gradually depleted lipid reserves to a critical minimum lipid content below which death occurred. Small fish with lower lipid content exhausted lipid reserves earlier, and experienced high mortality rates sooner, than larger fish with greater lipid content. Consequently, winter starvation endurance was dependent upon size-dependent lipid reserves and winter duration. To validate the laboratory findings in the field, we stocked several size classes of hatchery-raised trout with known lipid content at the start of winter into two experimental lakes, and estimated survival and lipid depletion at winter's end. Larger age-0 trout had greater initial lipid reserves than smaller trout. Individuals depleted most of their lipid reserves over the winter, and experienced mortality that ranged from just under 60% for the largest individuals to just over 90% of the smallest individuals. Many survivors had lipid contents near, but none were below, the minimum lipid content determined in the laboratory.

A hybrid neural classifier for dimensionality reduction and data visualization and its application to fault detection and classification of induction motors

In this paper, a hybrid neural classifier combining the auto-encoder neural network and the Lattice Vector Quantization (LVQ) model is described. The auto-encoder network is used for dimensionality reduction by projecting high dimensional data into the 2D space. The LVQ model is used for data visualization by forming and adapting the granularity of a data map. The mapped data are employed to predict the target classes of new data samples. To improve classification accuracy, a majority voting scheme is adopted by the hybrid classifier. To demonstrate the applicability of the hybrid classifier, a series of experiments using simulated and real fault data from induction motors is conducted. The results show that the hybrid classifier is able to outperform the Multi-Layer Perceptron neural network, and to produce very good classification accuracy rates for various fault conditions of induction motors.

Classification of main meal patterns - a latent class approach

Relatively little examination of the meals that are prepared in households has been conducted, despite their well-defined properties and widespread community interest in their preparation. The purpose of the present study was to identify the patterns of main meal preparation among Australian adult household meal preparers aged 44 years and younger and 45 years and over, and the relationships between these patterns and likely socio-demographic and psychological predictors. An online cross-sectional survey was conducted by Meat and Livestock Australia among a representative sample of people aged 18–65 years in Australia in 2011. A total of 1076 usable questionnaires were obtained, which included categorical information about the main meal dishes that participants had prepared during the previous 6 months along with demographic information, the presence or absence of children at home, confidence in seasonal food knowledge and personal values. Latent class analysis was applied and four types of usage patterns of thirty-three popular dishes were identified for both age groups, namely, high variety, moderate variety, high protein but low beef and low variety. The meal patterns were associated differentially with the covariates between the age groups. For example, younger women were more likely to prepare a high or moderate variety of meals than younger men, while younger people who had higher levels of education were more likely to prepare high-protein but low-beef meals. Moreover, young respondents with higher BMI were less likely to prepare meals with high protein but low beef content. Among the older age group, married people were more likely to prepare a high or moderate variety of meals than people without partners. Older people who held strong universalist values were more likely to prepare a wide variety of meals with high protein but low beef content. For both age groups, people who had children living at home and those with better seasonal food knowledge were more likely to prepare a high variety of dishes. The identification of classes of meal users would enable health communication to be tailored to improve meal patterns. Moreover, the concept of meals may be useful for health promotion, because people may find it easier to change their consumption of meals rather than individual foods.

Challenging the traditional sequence of teaching introductory calculus

Despite considerable research with students of calculus, rate, and hence derivative, remain difficult concepts to teach and learn. The demonstrated lack of conceptual understanding of introductory calculus limits its usefulness in related areas. Since rate is such a troublesome concept, this study piloted reversing the usual presentation of introductory calculus to begin with area and integration, rather than rate and derivative. Two classes of first-year university students taking introductory calculus were selected to pilot the effect of changing the sequence; one class was a control group and the other class followed the reversed sequence. Advances in technology, especially computer algebra systems (CASs) may facilitate new ways of studying mathematics. In this study, handheld CASs were used to support students’ thinking as they grappled with the concepts of introductory calculus. The use of CASs enabled consideration of symbolic patterns and numerical integration leading to a deeper conceptual understanding of integration. The easy access to the multiple representations of functions provided by CASs facilitated an exploration of rate where each representation highlighted different aspects of rate resulting in deeper conceptual understanding of differentiation.

Climate-driven impacts of prey abundance on the population structure of a tropical aquatic predator

In the present study we explore how annual variation in climate (late wet-season rainfall) affects population demography in a gape-limited obligate piscivorous predator, the Arafura filesnake Acrochordus arafurae in the Australian tropics. These aquatic snakes display extreme sexual dimorphism, with body sizes and relative head sizes of females much larger than those of males. Two consecutive years with low rainfall during the late wet season reduced the abundance of small but not large sized fish. Although snake residual body mass (RBM, calculated from a general linear regression of ln-transformed mass to ln-SVL) decreased after the first year with low prey availability, it was not until the second year that reduced prey abundance caused a dramatic decline in filesnake survival, and hence in population numbers. Thus, our results suggest that most snakes survived the first year of reduced prey abundance, but a successive year with low prey availability proved fatal for many animals. However, the effects of prey scarcity on RBM and survival fell disproportionately on some size classes of snakes. Medium-sized animals (large males and intermediate-sized females) were affected more dramatically than were small or large snakes. We attribute the higher survival of small snakes to their lower energy needs compared to medium-sized individuals, and the higher survival of large snakes to the continued abundance of large prey (mainly large catfish). Two successive years with low abundance of smaller sized prey thus massively modified the size-structure of the filesnake population, virtually eliminating large males and intermediate-sized females. Our field data provide a clear demonstration of the ways in which stochastic variation in climatic conditions can have dramatic effects on predator population demography, mediated via effects on prey availability.