Orientador: Rômulo Araújo Fernandes / Resumo: Objetivo: Analisar a associação entre a manutenção da prática esportiva e os parâmetros inflamatório, metabólicos e cardiovasculares entre adolescentes. Métodos: Estudo de 12 meses de seguimento, dados provenientes do estudo intitulado “Analysis of Behaviors of Children During Growth” (ABCD Growth Study) conduzido em Presidente Prudente, SP. Por meio de amostragem por conveniência foram selecionadas instituições de ensino e clubes esportivos da cidade de Presidente Prudente e região. Destas instituições, após a aprovação dos diretores e técnicos, foram convidados para participar do ABCD Growth Study todos os adolescentes com idade entre 11 e 18 anos. Na primeira fase do estudo, 285 adolescentes aceitaram participar, destes 259 (esportistas n=168; não esportistas n= 91) completaram as avaliações iniciais. Após 12 meses, 189 adolescentes permaneceram no estudo (124 esportistas e 65 não esportistas). Prática esportiva foi autorrelatada. Proteína C reativa (PCR) foi dosada por meio do método de imunoensaio de ponto fixo química seca. Espessura médio-intimal das artérias carótida e femoral e variáveis dopplerfluxométricas foram avaliadas por meio de um aparelho de ultrassonografia. Adiposidade corporal foi estimada pela densitometria óssea. Colesterol total (CT), lipoproteínas de alta (HDL-c), baixa (LDL-c) densidade, triacilglicerol (TG) e glicose foram mensuradas pelo método de inibição seletiva, química seca. A insulina foi analisada pelo método de quimioluminescencia e a resis... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Objective: To analyze the association between the maintenance of sport participation and inflammatory, metabolic and cardiovascular parameters in adolescents. Methods: Study of 12 months of follow up, in which dataset is part of an ongoing study intitled “Analysis of Behaviors of Children During Growth” (ABCD Growth Study) developed in Presidente Prudente, SP. Through convenience sampling was selected educational institutions and sport clubs of Presidente Prudente and region (gymnastics, track and field, karate, judo, kung fu, baseball, basketball, swimming and tennis). From these facilities, after principals and coaches approved the study, our staff invited all adolescents aged 11 to 18 years. In the first phase of the study, 285 adolescents accepted to participe, however 259 (sports n=168; non-sport= 91) completed all measurements. After 12 months of follow-up 189 adolescents was examined (124 engaged in sports and 65 non-sport group). Engagement in sport was self reported. C reactive protein (CRP) was determined by the immunoassay method using a specific kit. Carotid and femoral intima-media thickness and blood flow markers were assessed using an ultrasound equipment. Body fatness was estimated through densitometer scanner. Total cholesterol (TC), high (HDL-c), low (LDL-c) density lipoprotein, triacylglycerol (TG) and glucose were measured by the colorimetric method of dry chemistry. Insulin levels was analyzed by chemiluminescence method using a microparticle immunoassay ... (Complete abstract click electronic access below) / Doutor

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This study explored the classroom learning environment in science among kindergarten students. In particular, I investigated both students' and their parents' perceptions of both preferred and actual learning environments. Additionally, I explored associations between student outcomes (achievement and attitudes toward science) and the nature of the classroom learning environment (as perceived by students and by their parents). The study involved the construction and validation of a learning environment questionnaire that was used by both parents and kindergarten students. Although the questionnaire was validated for use with five- and six-year-old kindergarten students, the same format was used for both parents and students. Prior learning environment studies (Fraser, 1998a) typically have involved the use of questionnaires neither by parents (with a notable exception being the recent study by Allen and Fraser, 2002) or by such young students. There is little doubt that, in just two decades, the field of classroom learning environment has progressed enormously (Fraser, 1998a) and that research involving qualitative methods and research involving quantitative methods each have made outstanding contributions to this overall progress (Tobin & Fraser, 1998). A historical look at the field of learning environments over the past few decades shows that a striking feature is the availability of a variety of economical, valid and widely applicable questionnaires for assessing student perceptions of classroom environments (Fraser, 1998b). This learning environment study is significant not only because it involves very young students (kindergarten) and their parents, but also a classroom learning environment questionnaire was developed and validated in Spanish, for both students and parents. / The design of the study involved a sample of 172 kindergarteners from six classes and 78 parents of the same students from the same six classes. The ethnic make-up for this group of 172 students was 11.8% White, 49% Black, 33.6% Hispanic, and 5.6% of other nationalities. The gender breakdown was 40.4% boys and 59.6% girls. Approximately 45% of the kindergarten student population was made up of English Speakers of Other Languages (ESOL) students. The instruments used included modified versions in English and Spanish of the What Is Happening In This Class (WIHIC)? questionnaire and of the Test of Science-Related Attitudes (TOSRA). A major finding of the study was that the modified version of the What Is Happening In This Class? (WIHIC) questionnaire in the English and Spanish languages displayed satisfactory factorial validity and internal consistency reliability when used with kindergarten students and their parents. Secondly, parents perceived a more favorable actual classroom environment than did kindergarten students, but students preferred a much more favorable classroom environment than did their parents. The magnitudes of differences between students and parents are greater for the preferred form than the actual form. Finally, statistically significant associations were found between kindergarten students' perceptions of the. classroom environment and the outcomes of achievement and attitudes to science.

This photographic documentary seeks to record the transition from teenager into adulthood of twelve girls living in Melbourne, Australia between 2002 and 2008. Throughout the process of the project the artist has sought to challenge the assumption that reaching adulthood can be defined by achieving certain milestones in society, and that the transition period is as much about personal self-realisation on the part of the individual, as it is about measurements set by society. The photographic work is accompanied by text in the form of quotes taken from audio interviews conducted throughout the documentation process. This paper compares the ideas set by society about the process of becoming an adult and the real life events that triggered this transition period in this particular group of girls.

Recent evidence in the road safety research literature indicates that skills in hazard perception, visual search and attention may be developing executive functions in young novice drivers before the age of 25 years, contributing to their unintentional risk taking behaviour and subsequent high crash rates. The present research aimed to investigate these skills, whether they are predictive of each other, and whether hazard perception can be improved through road commentary training. Twenty-two young novice drivers and eight experienced drivers were recruited as participants in this study. The experienced drivers performed significantly better than the novice drivers on the hazard detection task that was specifically designed for the study. Their visual search skills were also examined and compared using the Visual Search and Attention Test, with the experienced drivers performing significantly better than the novice drivers. Interestingly, a significant positive correlation was found between the scores of the participants on the hazard detection task and the Visual Search and Attention Test which may indicate that the hazard detection skills can be predicted. The novice driver group who received 12 trials of video based road commentary training significantly improved in their hazard detection skills, suggesting that video based road commentary could be an effective road safety intervention for young novice drivers and if developed into a more comprehensive programme, holds promise for future implementation into the New Zealand Graduated Driver Licensing System. The results also hold promise for future investigation into the use of the Visual Search and Attention Test as a predictor of hazard perception skills in novice drivers.

Young people in the Western world demonstrate that they have little connection to democratic processes through their increasing absence from the polls at election time. This trend is evidenced in New Zealand where the secondary school curriculum has little content concerning electoral and political processes. Low voter turn-out is particularly prevalent in the triennial local body elections where only a small proportion of all eligible voters participate.This research is based within two North Shore City secondary schools and has two objectives. The first to establish the current understanding of Year 13 students of the local authority, its activities, governance and decision-making processes and the second to assess the effect of this information on the election activity of the participants. Following the provision of this information to the selected classes and after 2004 local authority elections, the same classes completed questionnaires to ascertain whether their participation (voting and non-voting) in the elections was affected by this intervention. A post-election focus group of non-school-based newly eligible voters enabled some qualitative inquiry into rationale and attitudes.The findings indicate a wide degree of ignorance and reinforce the current political situation where young people see no relevance to them of local authority politics. The research highlights the need to engage young people in civic matters and increase their ownership of and involvement in the democratic process.

Aboriginal young people are exposed to the impact of colonisation in Australia. They are at risk of becoming alienated from their homelands, cultures, communities and families. Some have become alienated, joining one of the most marginalised groups in Australian society – homeless people. Aboriginal young people, many of whom are already marginalised because of their indigeneity, join a group that can be described as further marginalised – that is, Aboriginal and homeless. In essence, Aboriginal homelessness can be seen and described as a loss of sovereignty. The Hebersham Aboriginal Youth Service (HAYS) is an organisation that is responding to the phenomenon of Aboriginal youth homelessness. HAYS is funded and operates under a joint Australian Federal, State and Territory government programmatic response that assists people who are homeless or at risk of becoming homeless. This thesis reviews the design and development of HAYS as an Aboriginal service organisation. The central thesis research question is: How should a service for homeless Aboriginal youth be designed and developed? In addressing this question, a case study methodology is utilised which is capable of facilitating research in contemporary organisational settings, such as in HAYS where its design participants operate around specific visions and goals. The research findings indicate that HAYS should become a ‘modern-day tribal ground’ in the form of the Mount Druitt Aboriginal Homeland Centre (MDAHC). In order to progress this model, a substantive theory of coherent dialogue is presented containing five critical design and development propositions educed from the research. The theory contains lessons for the design and development of urban Aboriginal community service organisations. This thesis concludes with a plea for consciousness-raising between Aboriginal and non-Aboriginal people involved in the design and development of Aboriginal community service organisations – a move towards the development of a critical consciousness for a better world through coherent dialogue. / Doctor of Philosophy (PhD)

Health-Related Quality of Life (HRQOL) is an important outcomes measure in cancer and there are specific issues depending on the site, stage, treatment and patient age. Although numerous instruments are available for cancer HRQOL, most are designed for adults, some for children, but none for adolescents and young adults (AYA) who have special age-specific concerns and poor improvement in survival compared with other age groups. An existing HRQOL instrument was modified to ensure its suitability for AYA, its validity, reliability and sensitivity were tested in Australians aged 16 to 25 years old diagnosed with cancer or a blood disorder. Varni’s PedsQLTM Measurement Model (13-18 year olds) was selected, modified then administered to families recruited from haematology/oncology clinics and wards at three Sydney Metropolitan Hospitals in person or by telephone. The Memorial Symptom Assessment Scale was used to categorise participants into groups reflecting sensitivity of symptom severity (slight, moderate and severe). The instruments demonstrated excellent internal consistency reliability, making them suitable for both group and individual comparisons. Clinical validity, construct validity, and discriminant validity were demonstrated by “known-groups” analysis, exploratory factor analysis and correlations, respectively. These new versions of the PedsQL Generic Core and Cancer Module are reliable, valid and sensitive measures of HRQOL in patients aged 16-25 years diagnosed with cancer or a blood disorder. The measures will soon be available for use as outcome measures in clinical trials and clinical practice with this age cohort in Australasia and internationally.

In the last thirty years there have been many research studies which have examined the reasons why adolescents and young adults engage in sexual behaviours. Most of these studies have lacked a theoretical basis, Consequently there are many links made between variables, but no consistency across studies, or attempts to develop an underlying theory to explain the results. However, there have been theoretical models developed to explain adolescents’ and young adults’ sexual decision making. Unfortunately, many of these models have not been empirically validated. This thesis attempts to address these deficiencies in the literature by utilising a theory of behaviour and applying it to adolescent and young adult sexual decision making. This theory is the Theory of Planned Behaviour (TPB). Two longitudinal studies were conducted to examine the utility of an adaptation of the TPB to sexual decision making among adolescents and young adults. In the first study 58 adolescent males, aged between 14 years and 18 years participated in a longitudinal study using a questionnaire adapted from the Depth of Sexual Involvement Scale. In the second study, 194 young adults (156 female, 38 male) aged between 18 years and 21 years participated in a similar study. The first study found that intention to engage in behaviour was well predicted, although some of the variables in the model, did not in fact, contribute significantly to the prediction. The prediction of behaviour was less strong than that of intention. Study two found that intention to engage in behaviours was well predicted by the model. However, the degree to which intention led to behaviour was not well predicted. Overall, the results of these studies suggest that the TPB is a good theoretical basis from which to launch a systematic and theoretically informed explanation of adolescent and young adult sexual decision making. However, other factors may need to be added to the model to fully describe the decision making process and accurately predict behaviour. Suggestions are made for future research, as well as interventions that may arise as more knowledge is gathered using this paradigm.

The purpose of the present research study was to produce a global, cumulative model of number concept development for children between the ages of two and eight years old. The theoretical and methodological orientation of this study was greatly influenced by Richard Young's production system analysis of seriation by young children (Young, 1971, 1976) and by Newell's (1973) seminal paper, ‘You can't play twenty questions with nature and win’. The methodology used in this investigation thus was as follows. A series of complex number tasks encompassing many aspects of the concept of number were developed. Five children aged between three and seven years then were videotaped while performing some of these complex number tasks. From a detailed protocol analysis of the video-recordings, computer simulation models written in the production system language PSS3 (Ohlsson, 1979) were produced. Specific production system models were produced for each of following aspects of the children's number knowledge: (i) sharing of discrete quantities; (ii) comparison of shares; and (iii) conservation/addition/subtraction of number. These domain-specific models were based on the converging experimental evidence obtained from each of the children’s responses to variants of the complex number tasks. Each child thus received a different set of problems which were chosen systematically in order to clarify particular features of the child's abilities. After a production system model for each child had been produced within a domain, these models were compared and contrasted. From this analysis, developmental trends within the domain were identified and discussed. The research and educational implications of these developmental trends then were discussed. In the concluding parts of this study, the children's domain-specific production system models were cumulated into global, comprehensive models which accurately represented their behaviour in a variety of number tasks. These comprehensive models were compared and contrasted and general developmental trends in young children's number knowledge were identified and discussed.