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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

A avia??o como vetor de dissemina??o de enfermidades : "as doen?as que v?m voando"

Helms, Henrique 26 March 2018 (has links)
Submitted by PPG Hist?ria (historia-pg@pucrs.br) on 2018-04-11T18:28:07Z No. of bitstreams: 1 TESE DE DOUTORADO HENRIQUE HELMS - final.pdf: 8241824 bytes, checksum: 9119bc635493fb610f1105e4d59cdce4 (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2018-04-26T17:08:29Z (GMT) No. of bitstreams: 1 TESE DE DOUTORADO HENRIQUE HELMS - final.pdf: 8241824 bytes, checksum: 9119bc635493fb610f1105e4d59cdce4 (MD5) / Made available in DSpace on 2018-04-26T17:11:21Z (GMT). No. of bitstreams: 1 TESE DE DOUTORADO HENRIQUE HELMS - final.pdf: 8241824 bytes, checksum: 9119bc635493fb610f1105e4d59cdce4 (MD5) Previous issue date: 2018-03-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The air transport model has been consolidated as one of the most important economic markets in the past decades. The growing need for travelling more and more to farther regions around the globe has boosted the aeronautical industry in a significant way. However, the transportation of humans also entails the transportation of undesirable viruses and diseases. This study proposes the analysis of the influence of air transport in the spread of these viruses. In order to do so, we conduct a historical review on the evolution of some of the most impactful outbreaks ever experienced, focusing on the H1N1(2009) and on the Zika (2015-2016) epidemics. Through this analysis, we can clearly demonstrate that the growth in the air market - illustrated by larger aircraft, more locations being linked, and more operational technology, impact on more people flying and, consequently, more diseases being spread. Despite the efforts on behalf of aviation and health authorities and the use of technology, there is the need for more studies and research to develop strategies that can mitigate these consequences. / O transporte a?reo consolidou-se como um dos mercados de maior import?ncia econ?mica nas ?ltimas d?cadas. A necessidade de deslocamentos a pontos mais distantes e em maior frequ?ncia tem impulsionado a ind?stria aeron?utica de forma cont?nua e significativa. No entanto, sabemos que o transporte de seres humanos tamb?m acarreta o transporte de doen?as e v?rus n?o desej?veis. O presente estudo ? uma an?lise historiogr?fica da influ?ncia do transporte a?reo na dissemina??o de doen?as. Para isso, conduzimos uma revis?o hist?rica sobre a evolu??o de algumas das maiores epidemias j? vividas, concentrando um foco maior na gripe A H1N1 (2009) e de Zika (2015-2016). A partir desta an?lise, podemos constatar que o crescimento do transporte aeron?utico ? evidenciado atrav?s de aeronaves maiores, mais localidades sendo acessadas, maior tecnologia operacional, impactam em maior quantidade de pessoas voando e, consequentemente, maior facilidade de dissemina??o de doen?as. Apesar dos esfor?os por parte das autoridades sanit?rias e aeron?uticas e da utiliza??o de tecnologias pertinentes, acredita-se que h? a necessidade de mais estudos e pesquisas para o desenvolvimento de estrat?gias que possam mitigar tais consequ?ncias.
2

Tomada de decis?o e equil?brio de metas conflitantes no gerenciamento de interrup??es de voo em empresa de transporte a?reo regular

Foga?a , Lucas Bertelli 20 March 2015 (has links)
Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-04-28T13:18:09Z No. of bitstreams: 1 467667.pdf: 2755402 bytes, checksum: b34ea9d3e6e6bf37120f54b5d5d74ce4 (MD5) / Made available in DSpace on 2015-04-28T13:18:10Z (GMT). No. of bitstreams: 1 467667.pdf: 2755402 bytes, checksum: b34ea9d3e6e6bf37120f54b5d5d74ce4 (MD5) Previous issue date: 2015-03-20 / overcoming problems like airport closures, infrastructure issues and unplanned maintenance events. To face such problems, these companies maintain Operational Control Centers (OCCs) that oversee the execution of all planned flight operations and try to accommodate any encountered variability. These OCCs rely on the experience of its decision makers and high technology to evaluate complex scenarios and balance conflicting goals to get to fast and efficient solutions, while trying to preserve the system?s response capability. The objective of this study is to characterize the decision making inside an OCC, facing the challenges to balance conflicting goals in situations of airline disruption management. This research presents a single case study performed inside an airline e that operates around 900 flights per day in Brazil. A systemic mapping of the OCC was performed using the Functional Resonance Analysis Method (FRAM), followed by interviews using the Critical Decision Method (CDM) and at last, an analysis of the effects of the balancing of conflicting goals in the systems response capability facing variability is shown.Points of resilience and organizational brittleness were found in the system. The characterization of the decision making has shown some of the most common problems in challenging scenarios and some of the most used strategies used to overcome them, along with combinations of decisions that influence the systems response capability. The utilization of the FRAM, associated with CDM in the study of decision making showed promise for use in future research in other airlines or even other industries, revealing important implications for training and procedure development. / Um dos mais importantes desafios organizacionais de empresas a?reas ? manter a continuidade de suas opera??es, contornando problemas como fechamento de aeroportos, quest?es de infraestrutura e eventos de manuten??o n?o programados. Para lidar com estes problemas estas empresas utilizam Centros de Controle de Opera??es (CCOs), que acompanham a execu??o do planejamento de suas programa??es de voo e tentam acomodar a variabilidade encontrada. Estes CCOs utilizam alta tecnologia associada ? experi?ncia de seus decisores para avaliar cen?rios complexos e equacionar metas conflitantes para chegar a solu??es r?pidas e eficientes, enquanto buscam preservar a capacidade de resposta do sistema. O objetivo deste trabalho ? caracterizar a tomada de decis?o do CCO frente aos desafios de equilibrar metas conflitantes em situa??es de gerenciamento de interrup??o de voos. Esta pesquisa apresenta um estudo de caso ?nico de uma empresa de transporte a?reo regular que opera em torno de 900 voos di?rios em todo Brasil. Um mapeamento sist?mico do CCO foi realizado utilizando o M?todo de An?lise de Resson?ncia Funcional (FRAM), seguido de entrevistas epis?dicas utilizando o Cr?tical Decision Method (CDM) e por fim, uma an?lise dos efeitos de equil?brio de metas conflitantes na capacidade de resposta do sistema frente ? variabilidade ? apresentada.Foram descobertos pontos de resili?ncia e fragilidade organizacional no sistema, a caracteriza??o da decis?o revelou os problemas mais comuns em cen?rios desafiadores de interrup??es de voos e as estrat?gias mais utilizadas para contorn?los, assim como combina??es de decis?es que influenciam a capacidade de resposta do sistema. A proposta de utiliza??o do FRAM associado ao CDM para o estudo da decis?o em CCOs se mostrou promissora para utiliza??o em pesquisas futuras em outras empresas a?reas ou mesmo em outras ind?strias, revelando implica??es importantes para treinamentos e desenvolvimento de procedimentos.

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