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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Vida de caminhoneiro: sofrimento e paix?o / Life of truck driver: suffering and passion

Silva, Ramon Ara?jo 09 December 2015 (has links)
Made available in DSpace on 2016-04-04T18:28:22Z (GMT). No. of bitstreams: 1 RAMON ARAUJO SILVA.pdf: 1246426 bytes, checksum: 59b054fad2c372e3bdc1559de82842e1 (MD5) Previous issue date: 2015-12-09 / Pontif?cia Universidade Cat?lica de Campinas / Daily truck drivers are subjected to long working hours, they spend several days away from the family, they are forced to go through sleepless nights and, to perform multiple rounds, they are forced to make use of stimulant drugs. Whereas the work occupies a central place in their lives and that has a direct impact on the living conditions and health, this research, qualitative, expressed the belief that the above conditions result in an extremely exhausting daily work. The objective of this study was to analyze the characteristics of everyday working of the long routes drivers truck, from their own perspectives, and check the possible relations of this routinewith the mental health of these workers. To do this, this research, located in the field of Social Work Psychology, used the ethnographic method, with the completion ofreflexive interviews and travel with truck drivers. Research has shown that many truckers say they love the road, but on the other hand, the work is extremely stressful and can reverberate directly on the physical and mental health. In the field work, the hardship and the precarious nature of this activity stood out. But beyond them, it was also possible to identify some aspects that characterize the profession, such as the affection of drivers with regard to work; the excessive control exercised by carriers through the tracker and the cell; the isolation; the functional use of drugs that ends, in many cases, to trigger dysfunctional; the difficulty of these workers to organize collectively and contradictions of the strikes carried out by truck drivers. It was considered that the main difficulties of the truck activity are due mainly to the strong influence that the capitalist logic has on the road loads sector, especially with regard to the exploitation of surplus value which obliges drivers to comply with a long working hours. / Cotidianamente os caminhoneiros est?o sujeitos a longas jornadas de trabalho, passam v?rios dias distantes da fam?lia, s?o obrigados a atravessar noites sem dormir e, para executar m?ltiplas jornadas s?o obrigados a fazer uso de drogas estimulantes. Considerando que o trabalho ocupa um lugar central na vida dos sujeitos e que repercute diretamente nas condi??es de vida e sa?de, esta pesquisa, de natureza qualitativa, partiu do pressuposto que as condi??es citadas acima resultam em um cotidiano de trabalho extremamente desgastante. O objetivo deste trabalho foi analisar as caracter?sticas do cotidiano de trabalho de caminhoneiros de rotas longas, a partir de suas pr?prias perspectivas, e verificar as poss?veis rela??es desse cotidiano com a sa?de mental desses trabalhadores. Para tal, esta pesquisa, situada no campo da Psicologia Social do Trabalho, utilizou-se do m?todo etnogr?fico, com a realiza??o de entrevistas reflexivas e viagens junto com caminhoneiros. A pesquisa permitiu verificar que muitos caminhoneiros se dizem apaixonados pela estrada, mas, por outro lado, o trabalho ? extremamente desgastante e pode repercutir diretamente sobre a sa?de f?sica e mental. No trabalho de campo, a penosidade e a precariedade dessa atividade se destacaram. Tamb?m foram identificados alguns aspectos que caracterizam essa profiss?o, tais como o afeto dos motoristas com rela??o ao trabalho; o controle excessivo exercido pelas transportadoras atrav?s do rastreador e do celular; o isolamento; o uso funcional de drogas que, em muitos casos, desencadeia o disfuncional; a dificuldade desses trabalhadores de se organizarem coletivamente e as contradi??es das paralisa??es realizadas pelos caminhoneiros. Considerou-se que as principais dificuldades da atividade dos caminhoneiros devem-se, principalmente, ? forte influ?ncia que a l?gica capitalista exerce sobre o setor rodovi?rio de cargas, especialmente no que diz respeito ? explora??o da mais-valia que obriga os motoristas a cumprir uma extensa jornada de trabalho.
2

Quantifica??o das emiss?es de gases de efeito estufa para ve?culos de coleta de res?duos domiciliares abastecidos com GNV e Diesel-B5 utilizando avalia??o de ciclo de vida (ACV)

Costa, Ronaldo Silvestre da 30 November 2016 (has links)
Submitted by PPG Engenharia e Tecnologia de Materiais (engenharia.pg.materiais@pucrs.br) on 2018-02-19T14:21:21Z No. of bitstreams: 1 Tese RONALDO SILVESTRE DA COSTA Final Entrega PGETEMA.pdf: 3370134 bytes, checksum: 383fa921245f353cae4a408bd4641901 (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2018-02-23T17:34:28Z (GMT) No. of bitstreams: 1 Tese RONALDO SILVESTRE DA COSTA Final Entrega PGETEMA.pdf: 3370134 bytes, checksum: 383fa921245f353cae4a408bd4641901 (MD5) / Made available in DSpace on 2018-02-23T17:39:49Z (GMT). No. of bitstreams: 1 Tese RONALDO SILVESTRE DA COSTA Final Entrega PGETEMA.pdf: 3370134 bytes, checksum: 383fa921245f353cae4a408bd4641901 (MD5) Previous issue date: 2016-11-30 / Funda??o de Amparo ? Pesquisa do Estado do Rio Grande do Sul (FAPERGS) / The transport sector represents a significant responsibility in the pollution emissions. Also, the consumption of fossil fuels is related with the rising of global average temperature due to the greenhouse gas emissions. Biofuels and natural gas are investigated as alternative fuels to mitigate the environmental impacts. However, due to the several source emissions within a product life-cycle, the environmental performance of an environmental friendly product must be verified. This work aims to quantify greenhouse gas emissions during household waste collection by heavy vehicles (trucks) fueled with different fuels. It was proposed the development and implementation of a methodology to compare both pollutant gas emissions and noise for the use of CNG (compressed natural gas) and diesel-B5, aiming to mitigate environmental impacts in captive fleet that travels daily in the Porto Alegre city, Rio Grande do Sul state, Brazil. The trucks were monitored using a portable gas analyzer equipment (O2, CO, CO2, NO, NO2, NOx, SO2, HC), and the fuel consumptions and autonomy were obtained from the company that provides the service. With the data collected on established routes, it was applied the Life Cycle Assessment (LCA) methodology to carry out the study comparing the environmental performance of the use of CNG and Diesel-B5. The results showed that higher global warming impact (according IPCC method) was observed to CNG, independently of the time horizon considered (20 100 or 500 years). When comparing the contribution of the process stages (from production to use of fuels), CNG presented higher impacts in the collection and venting steps, while diesel -- B5 presented in the collection step. / O setor de transportes apresenta significativos problemas ambientais relacionados ?s emiss?es de poluentes, agravados em regi?es urbanas. A queima e a explora??o de combust?veis f?sseis s?o constantemente relacionadas ao aumento da temperatura m?dia global. O uso de combust?veis, como os de origem vegetal e g?s natural, tem sido uma alternativa frequente na mitiga??o de gases de efeito estufa. No entanto, devido ?s v?rias fontes de poluentes presentes no ciclo de vida do produto, o desempenho ambiental de produtos considerados amig?veis ao meio ambiente deve ser verificado. Este trabalho teve como objetivo quantificar as emiss?es de gases de efeito estufa emitidos durante a coleta de res?duos domiciliares por ve?culos pesados (caminh?es) abastecidos com diferentes combust?veis: g?s natural e diesel-B5. Prop?e-se o desenvolvimento e a implementa??o de uma metodologia para a compara??o das emiss?es de poluentes para o uso de GNV (g?s natural veicular) e Diesel-B5, objetivando a mitiga??o de impactos ambientais em frota cativa que trafega diariamente na cidade de Porto Alegre ? RS. Os caminh?es foram monitorados com um equipamento analisador port?til de gases (O2, CO, CO2, NO, NO2, NOx, SO2, HC), e os consumos e a autonomia dos combust?veis foram obtidos junto ? empresa prestadora do servi?o. Com os dados levantados nas rotas estabelecidas, foi aplicada a metodologia de Avalia??o do Ciclo de Vida (ACV) para realizar o estudo de compara??o do desempenho ambiental entre o uso de GNV e Diesel-B5, considerando todas as etapas desde a produ??o at? o consumo final dos combust?veis. Os resultados mostraram que o maior potencial para aquecimento global (segundo o m?todo IPCC) ocorre para o GNV, considerando per?odos de 20 anos, 100 anos e 500 anos. Quando comparadas as contribui??es das diferentes etapas do processo, desde a produ??o at? o uso do combust?vel, observou-se que o GNV apresenta os maiores impactos nas etapas de transporte e coleta de res?duos, enquanto o Diesel-B5 apresenta impacto significativo apenas na etapa de coleta de res?duos.

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