Submitted by CARLOS ALEXIS ALVARADO SILVA (carlosalvaradosilva@gmail.com) on 2016-09-14T17:46:58Z No. of bitstreams: 1 dissertação final CARLOS ALVARADO.pdf: 3455623 bytes, checksum: 4fe5a62f068f2bf001ce3b1fdc1681ef (MD5) / Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-09-14T21:51:44Z (GMT) No. of bitstreams: 1 silva_caa_me_guara.pdf: 3455623 bytes, checksum: 4fe5a62f068f2bf001ce3b1fdc1681ef (MD5) / Made available in DSpace on 2016-09-14T21:51:44Z (GMT). No. of bitstreams: 1 silva_caa_me_guara.pdf: 3455623 bytes, checksum: 4fe5a62f068f2bf001ce3b1fdc1681ef (MD5) Previous issue date: 2016-07-04 / Agencia Nacional de Petróleo (ANP) / Controlar a pressão de poços petrolíferos durante a perfuração pode ser um dos processos mais complexos e perigosos da etapa de exploração. O sistema de perfuração varia constantemente e aleatoriamente, isto principalmente, devido à mudança da profundidade de perfuração, a qual faz variar outros parâmetros do processo. Assim, a aplicação de um controle variante no tempo torna-se necessário. Este estudo propõe o projeto de um controlador Gain Scheduling (GS) no controle da pressão no fundo de poços durante a perfuração. Este controlador GS consiste na sintonia dos ganhos relacionados aos diferentes pontos operacionais, para este caso, a profundidade do poço. Primeiro, apresentam-se as teorias a serem utilizadas durante o desenvolvimento do trabalho. Segundo, obtém-se o modelo matemático do processo o qual se fundamenta na mecânica dos fluidos. Da linearização do modelo, a função de transferência resultante apresenta um elemento integrador o que faz que a dinâmica do processo seja difícil de manipular. Também se adiciona um tempo de atraso, o que torna mais complexo o controle do processo. Na terceira parte, utilizaram-se três tipos de metodologias IMC (Internal Model Control) para sintonizar os ganhos do controlador PID (Proporcional, Integral e Derivativo) para diferentes profundidades de perfuração procurando o melhor desempenho, estabilidade e robustez do sistema. Finalmente, escolhe-se a estratégia de melhor desempenho (IMC de dois graus de liberdade) para especificar e montar a tabela do controlador GS, o qual é avaliado mediante simulações de problemas que geralmente ocorrem durante a perfuração, considerados como distúrbios, que verificam a sua viabilidade. Também, os resultados do sistema controlado por GS são comparados com os resultados de um outro controlador do tipo adaptativo de modelo de referência (CAMR). Verificando também melhor desempenho o controlador GS diante do CAMR. / Controlling the pressure of oil wells during drilling can be one of the most complex and dangerous processes of exploration stage. The drilling system is constantly end randomly changing due, among other things, the drilling depth, which varies other process parameters, accordingly to apply a time variant control becomes necessary. This study proposes the design of a Gain Scheduling controller to control the pressure at the bottom of wells during drilling. The GS controller is based on the corresponding tuning gains at different operating points in this case, the depth. First, presents the theories that will be used during development work. In the second part, was obtained a mathematical model of the process which is based on fluid mechanics. In the linearization of the, the final transfer function presents an integrating element which makes the process dynamics more difficult to handle. It becomes even more complex in the presence of time delay. In the third part, three IMC controllers’ types were used to tuning the PID (Proportional, Integral and Derivative) controller gains for different depths of drilling looking for the best performance, stability and robustness. Finally, was chose the best performing strategy (IMC of two degrees of freedom) to specify and assemble the GS controller table, which is evaluated by simulations of problems that usually occur during drilling, considered as disturbances, which check its viability. Also, the results of the controlled GS system are compared with the results of another adaptive controller model of model reference (MRAC). Also verifying that the GS controller presents better performance than MRAC. / PRH48/ANP: 48610.009725/2013

With the Covid-19 pandemic, many of the already identified shortcomings in our welfare society came to be challenged and care for the eldery was particularly affected. Eldery care had to endure harsh criticism and managers in eldery care were questioned. Based on this, the purpose of this study is to gain an in-depth understanding of the eldery care first-line leaders experiences of leading during the Covid-19 pandemic an how they are emotionelly effected and challenged during this period. The study is based on a qualitative method whit semi-stuctured interviews as a data collection method. Eight first-line leaders in eldery care have been interviewed and based on their stories, their experiences of leading during the covid-19 pandemic have been analyzed from Erving Goffman's dramaturgical perspective and Arlie Russel Hoschschild's theory of emotional work. The study shows the importance of a transparent and present leadership and that the unit leaders have experienced loneliness and inadequacy in their role as leaders, wherw the collegial support has proven to be central to being able to stand firmly as a leader during the pandemic.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-08-23T13:00:55Z No. of bitstreams: 1 2011 - Sandra Maria Peron de Lima.pdf: 1616956 bytes, checksum: 3d15a3ef8a04eebc8a6081af3182fd84 (MD5) / Made available in DSpace on 2016-08-23T13:00:55Z (GMT). No. of bitstreams: 1 2011 - Sandra Maria Peron de Lima.pdf: 1616956 bytes, checksum: 3d15a3ef8a04eebc8a6081af3182fd84 (MD5) Previous issue date: 2011-02-25 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / This qualitative study conducted in a federal institution of higher education, located in the city of Serop?dica ? RJ aimed at describing public managers learning processes for developing their managerial skills. These managers work at personnel management, financial/accounting management and academic management areas of a federal higher education institution and research focused managers? daily practice. To achieve its final goal, five intermediate objectives where accomplished: to assess how the learning process occurs in the context of public organization, to depict how managers learned to manage in daily practice basis, to identify the function the collective learning for development of managerial skills, to asses manager's point of view on the skills they needed for managing, and to propose recommendations for enabling managerial competencies development through collective learning at this Institution. Field data was collected through semi-structured interviews and participant observation. Collected data was analyzed through an interpretive hermeneutic process. Research results suggest that: managerial competencies development occurs by way of: a) individual learning, through formal studies, personal search, reading; b) collective learning through interaction with people in everyday practices of the work, in forums, meetings; c) experiential learning by way of life and professional experience; d) community of practice learning through informal discussion forums; and f) vicarious learning. Managerial skills developed through these learning processes are related to: managers' personal and interpersonal competence, professional competence and their competence for action. The latter were developed through problem solving and day-to-day challenges where managers have learned to negotiate using creativity. Thus, in order of activate the development of managerial competencies it is recommended: to improve organizational structure in order to propitiate collective learning; to improve administrative processes; manpower dimensioning; formulating new standards and procedures setting to optimizing workload distribution and to improve managerial decision-making. It is also recommended a quality of life program implementation, managerial training program implementation, workshops, meetings and formulating daily practices to minimize stress effects on managers who become handlers of organizational toxins. It is suggested to further research on administration and accounting sciences undergraduate courses contribution for public management; to replicate this research with a different group focusing on its political base; to examine how managers? past experience in private enterprises contributes to their public management practice and vocation; to enhance study on managers' community of practice formation; and as the frustrations and difficulties contribute to learning / Este estudo qualitativo foi realizado em uma institui??o federal de ensino superior, localizada no munic?pio de Serop?dica ? RJ. O objetivo foi descrever processos de aprendizagem das compet?ncias gerenciais do gestor p?blico que atua nas ?reas de gest?o de pessoas, gest?o financeira/cont?bil e gest?o acad?mica de uma institui??o federal de ensino, em sua pr?tica cotidiana. A fim de se alcan?ar o objetivo da pesquisa estabeleceram-se cinco objetivos secund?rios que foram: a)descrever como ocorre o processo de aprendizagem no contexto da organiza??o p?blica; b)levantar como os gestores aprenderam a gerenciar na pr?tica; c)identificar o papel da aprendizagem coletiva no desenvolvimento das compet?ncias gerenciais; d)levantar do ponto de vista dos gestores quais as compet?ncias necess?rias para agir; e e)propor medidas para ativar e sistematizar o desenvolvimento de compet?ncias gerenciais desenvolvidas por meio da aprendizagem coletiva. Utilizou-se para levantamento dos dados junto a vinte e dois gestores, o m?todo de entrevista semiaberta com observa??o de campo. A an?lise dos dados foi realizada por meio de interpreta??o hermen?utica. Os resultados emp?ricos permitem concluir que o processo de constru??o das compet?ncias gerenciais dos gestores p?blicos ocorre por meio de: a) aprendizagem individual via estudo formal, busca pessoal e leitura; b) aprendizagem coletiva via intera??o com as pessoas na pr?tica cotidiana do trabalho e tamb?m em f?runs, encontros e reuni?es; c) aprendizagem experiencial via experi?ncia profissional e de vida; d) aprendizagem em comunidade de pr?tica via f?rum informal de discuss?o; e ainda e) aprendizagem vic?ria. As compet?ncias gerenciais desenvolvidas por meio desses processos de aprendizagem individual constituem-se de compet?ncias pessoais, interpessoais e compet?ncias para a??o. Esta ?ltima foi desenvolvida por meio da solu??o de problemas e desafios do dia-a-dia, onde gestores aprenderam a negociar e usar criatividade. A fim de ativar o desenvolvimento das compet?ncias gerenciais por meio de aprendizagem, recomendam-se melhorias na estrutura organizacional para incentivar a aprendizagem individual e coletiva no trabalho cotidiano, gest?o de processos administrativos, dimensionamento da m?o-de-obra, estabelecimento de normas e procedimentos de distribui??o de atividades para minimizar a sobrecarga de trabalho apontada pelos gestores e aprimorar o processo de decis?o gerencial. Al?m disso, recomenda-se tamb?m elaborar programa de qualidade de vida, programa de forma??o gerencial, oficinas de estudo coletivo, encontros e reuni?es para partilhar/trocar experi?ncias e ainda tomar medidas para minimizar o efeito do estresse sobre os gestores que por for?a da responsabilidade assumida tornam-se reposit?rios do estresse de suas equipes. Sugere-se para futura pesquisa identificar a contribui??o da forma??o em administra??o e em ci?ncias cont?beis para preparar gestores p?blicos; replicar a pesquisa com outro grupo de gestores com aten??o a sua base pol?tica; identificar como a experi?ncia de gest?o no setor privado contribui para a pr?tica de gest?o p?blica; estudar a forma??o de comunidade de pr?tica de gestores p?blicos, e como as frustra??es e dificuldades contribuem para com a sua aprendizagem.

Hypertension is a chronic non-communicable disease and a major risk factor for cardiovascular diseases, renal malfunction, disability, and premature death. One of the public health recommendations for the management of hypertension is the reduction of sodium/salt intake. There is need to develop and implement new evidence-based theoretical interventions to initiate and sustain behavior change in health education and promotion. Therefore, the quantitative cross-sectional method and design was used to investigate the adequacy of multi-theory model (MTM) constructs for the initiation and the sustenance of low sodium/salt intake behavior in hypertensive Nigerian adults. In addition, the impact of the MTM (initiation) constructs on actual salt/sodium intake was evaluated to validate self-reported behavior. A convenience sample of 149 consenting Nigerian adults with hypertension and of ages 20 to 60 years, self -administered the valid and reliable 39-item MTM instrument. The findings of confirmatory factor analysis showed construct validity of subscales for the initiation and sustenance model. All items loading for the two models were significant, p < 0.001. Multivariate regression analysis revealed 40.6% of the variance in initiating the consumption of low salt diets explained by advantages outweighing disadvantages, behavioral confidence, and changes in physical environment. About 41.8 % of the variance to sustain the intake of low salt diet was explained by emotional transformation, practice for change, and changes in social environment. The results justified the predictive role of MTM and adequacy of its utility to build evidence-based health education programs and interventions to address the health need of people with hypertension and contribute to social change in the country.

Text in English / With the Acquired Immune Deficiency Syndrome (AIDS), first recognised in 1981 as a new disease that subsequently took on pandemic proportions, home-based caregivers became instrumental to ensure that, notwithstanding the encumbered health care systems, people living with HIV and AIDS (PLWHA) receive care, support and treatment within their households to live prolonged dignified lives. Despite their pivotal role in the field of HIV and AIDS care, there seems to be a dearth of literature, and research locally and internationally, from the ambit of Social Work on the topic of how HBCGs manage and cope with the work-related challenges they experience when caring for PLWHA and their need for Social Work support. Through this exploratory, descriptive, contextual and phenomenological qualitative study, I scrutinised the HBCGs’ experiences and associated challenges and the coping strategies they employ to address these challenges as well as their views on how social workers could support them in overcoming these challenges in the specific case on home-based care to PLWHA. Twenty-five HBCGs were identified and recruited through purposive and snowball sampling techniques from twelve home-based care organisations in South African provinces, namely, North West, Limpopo and Gauteng. Data was collected through individual face-to-face semi-structured interviews using an interview-guide. Data analysis was conducted through Tesch’s eight steps (in Creswell 2014:189) while Guba’s model (in Shenton, 2004) was adopted for data verification. Cast against Loretta Williams’ (2014) middle range theory of caregiving dynamics (Williams 2014), the coping theory of Lazarus and Folkman (1984) and the strength-based perspective (Saleebey, 2013) adopted as theoretical frameworks for this study, the following findings were revealed. The HBCGs were motivated by, among other factors, their mere desire to care for PLWHA; their personal experiences of caring for an ill relative; and future career aspirations to become involved in this care work. HBCGs were found to face various work-related challenges in connection with reactions from community members, the patients and their relatives; their unsafe working conditions; as well as from their colleagues, other role players and their own organisations. It was found that for most of the HBCGs their care work saddened, pained and discouraged them. In the midst of feeling sorry for their patients, they feared getting infected themselves, in addition to their work-related challenges that caused them to experience feelings of failure. The strategies adopted to cope with their work-related challenges included getting support from employers, receiving counselling and becoming involved in support groups. Finally, several suggestions were directed to the management structures of HBC organisations, the HBCGs themselves and social workers on how they could address the work-related challenges. Based on the research findings, some recommendations are forwarded concerning guidelines for Social Work support directed at work practice, policies and programmes; associated education and training endeavours; and continuous professional development initiatives, as well as avenues for further research. / Social Work / D. Phil. (Social Work)

我國為配合加入WTO，紓緩日後大量農產品開放進口，對本土農地利用管理與農業生產所帶來的衝擊，政府乃大幅度修正農業發展條例（以下簡稱農發條例），以為因應。該條例及配套法案業於民國八十九年一月四日、六日及十三日經立法院三讀通過，並由總統於同年一月二十六日公布施行。本次農發條例之修正要點，在農地政策方面，主要側重於農地合理的利用、有效地管理與適當的釋出，其中最大的轉變在於調整為「放寬農地農有，落實農地農用」原則，不再限制農地移轉承受人之身份與資格，並有條件地許可農企業法人承受農地。這樣的變革，旨在建立更為開放競爭的耕地買賣市場，增進耕地的流動性，以利農業經營者取得耕地，調整農業經營結構，應值贊同。然而，條文內容有無疏漏不妥？仍有待深入檢討；條文原則性的規定能否落實？尚待相關法令的配合修訂，方能儘速建立合理農地利用、管理與釋出機制，以確保我國的農業發展。 　　緣此，本研究乃就農發條例之研修條文內容，深入探析農地政策與移轉規定之轉變，同時藉由實地調查（問卷調查與深度訪談）及拜訪農政等單位，以瞭解移轉制度變遷之實施現況及其對農業經營之影響程度，並訪察農業經營者之意向及博採各方之想法，據以確實地檢視現行農地移轉制度有關之爭議與問題，再提出研修現行條文、修訂行政命令及研議配合措施等改進意見，冀能有助於促進農地合理利用，並供後續法律修正、執行之參考。最後，再綜合本研究之成果，推衍以下結論： 　　一、調整農地農有制度係時勢潮流，農地農用管理機制應詳加落實。 　　二、實證調查發現，受訪者大抵認同目前農地移轉制度之變革規定，惟對促進農地流動及帶動農業升級助益不大。 　　三、引進農企業法人承受耕地之成效不彰，且牽涉法令繁多，亟待整合修訂。 　　四、制度規則未能公平提供誘因，且未能有效減低執行面之不確定性，應儘速檢討改進並確實執行之。 　　五、農民與農企業法人普遍欠缺對相關法令資訊的瞭解，應加強相關人員之專業訓練與宣傳輔導。 　　此外，在研究過程中，發現仍有相關課題有待未來後續研究，以促使農地更有效利用管理，並能確保農業永續發展，建議如下： 　　一、健全農企業法人承受耕地之管理制度。 　　二、建構重要農業區之區分與保護機制。 　　三、進一步研究農業產銷班與農地利用之關聯性。 / For joining WTO and moderating the impact of the import of agricultural products on agricultural lands use and, management and production, our government reacted by revising the Agricultural Development Act (ADA). The ADA has been revised by the Legislative Yuan on January 4 and promulgated by the Presidential Decree on January 26, 2000. The main point of the revision is to emphasis on reasonable farmland uses, effective management and adequate release of the land regulations in the agricultural policy. The main change is to adjust ADA’s principle from “the right to own and use farmland to be limited to the farmer” to “the release of the restriction on farmland transferee and realization of the substantial farmland uses.” The revision does no longer set a limit to the status and qualification of transferees and permits the transferable rights of agribusiness on some certain conditions. It is approved that the revision is to establish a more open and competitive arable land market, to improve the liquidity of arable lands, to facilitate the acquirement of arable lands for agribusiness, and to adjust the agricultural production structure. However, we should review the completeness and realization of the revised ADA after the promulgation in order to assure the agricultural development. 　　Therefore, the main purpose of this thesis is to probe into the change of the agricultural land policy and transfer regulation from the provisions of the revised ADA, examine the exercising of transfer system change and its influence on agricultural operation, investigate the intention of agricultural managers for reviewing the relative debates and issues, and then offer some advice as references of revision in the future. The conclusion is described as follows: 　　1.It is a trend of the times to adjust the transfer system that the right to own and use farmland is limited to the farmer, and the mechanism of assuring the substantial farmland uses should be realized. 　　2.From empirical research, the interviewees almost agree to the new agricultural land transfer system, but think that it is not useful for accelerating the liquidity and promoting the level of agricultural industry. 　　3.It is not significant on introducing agribusiness to be the transferee of arable lands, and it is necessary for our government to integrate too many relative and complicated laws. 　　4.We should review and implement the revised ADA because the rules themselves cannot provide fair incentives and effectively reduce the uncertainty from exercising it. 　　5.Farmers and agribusinesses lack the knowledge of relative laws, so the government should enhance them the professional training and give them consultant service. 　　In addition, from this research, we also found that some issues need to be studied for effective management of agricultural lands and sustainable development of agricultural industry in the future. 　　1.How to sound the management institution when agribusinesses want to be the transferee of arable lands. 　　2.How to designate important agricultural zones and establish protection mechanism. 　　3.Study the correlation between the agricultural product marketing class and agricultural land uses.