La recolonisation des Hautes terres par l’An. funestus dont les gîtes larvaires principaux sont les rizières a été l’origine de l’épidémie des années 1980s. La pulvérisation intra domiciliaire d’insecticide a constitué l’une des stratégies adoptées pour contrôler l’épidémie. Notre étude s’est intéressée à six zones des Hautes Terres centrales. Les résultats de la détermination des rizières utilisant la télédétection, combinés à d’autres facteurs connus influençant la transmission du paludisme ont permis d’établir des cartes de zones à risque prioritaires pour la pulvérisation d’insecticide à l’aide de l’analyse multicritère par la méthode de combinaison linéaire pondérée. Le paludisme urbain d’Antananarivo diffère du reste de celui des Hautes Terres. Un Système d’Information Géographique a été utilisé pour étudier l’impact des facteurs environnementaux sur le faible taux d’incidence du paludisme observé à partir de neuf Centres de Santé de Base ayant participé à l’étude du paludisme urbain / The reappearance of epidemic malaria in the highlands of Madagascar during the late 1980’s has been attributed to the reestablishment of Anopheles funestus. Rice fields constitute their principal larval habitats. Control strategies to prevent epidemic malaria, have been based on indoor residual spraying of insecticides. Our study was conducted in six zones in the Highlands. Rice fields were determined using remote sensing imagery. Results were combined with factors known to influence the transmission of malaria. Multicriteria evaluation, by the method of weighted linear combination, was used as basis for improved targeting of actions by determining priority zones for intervention. The factors driving malaria transmission in urban Antananarivo differ from the other regions of the highlands. A Geographical Information System was used to study the role of environmental factors on the low malarial incidence rates observed in nine community based health centres in Antananarivo

O presente trabalho consistiu na identificação de uma série de atributos do meio físico com o objetivo de gerar uma carta de susceptibilidade à erosão das bacias hidrográficas dos rios Cubatão e Araraquara em escala 1:50.000, ambas pertencentes à bacia do Rio Pardo. Os atributos do meio físico analisados foram o substrato rochoso, os materiais inconsolidados, declividade e uso e ocupação da área. A carta de susceptibilidade à erosão visa identificar áreas com diferentes graus de vulnerabilidade frente ao processo erosivo, de forma a facilitar o planejamento do uso e ocupação daquela região. Este estudo foi realizado seguindo as bases conceituais e metodológicas da cartografia geotécnica tradicional. Nesta pesquisa, foram utilizados sistemas de informação geográfica, tanto para análise de imagens de satélite para um fim específico, quanto para o tratamento dos dados do meio físico obtidos ao longo das etapas do trabalho. Procurou-se também compreender melhor a propriedade chamada de erodibilidade e identificar quais atributos relacionados com o materiais inconsolidados que mais contribuem para a predisponência do mesmo em ser erodido. / In this present work many environmental attributes were identified, in order to create a soil erosion susceptibility chart (1:50.000 scale) for the Cubatão and Araraquara hydrographic basin, which in turn, are part of the greater Pardo river basin. These attributes were bedrock classification, unconsolidated materials, slope and land use. The soil erosion susceptibility chart was meant to help the land use management of that particular region by identifying areas with different soil erosion vulnerability. This study was leaded following conceptual and methodological bases from the traditional engineering geological mapping approach. Geographical information system (GIS) were applied to analyze satellite images for a specific utilization, as well as for dealing with the environmental data, obtained along all the work stages. It was intended also to provide a better understanding of the property called erodibility and to identify which of the unconsolidated material attributes really contributes to its erosion.

The Scandinavian Joint Expedition to Sudanese Nubia (SJE) was one of the substantial contributions of crucial salvage archaeology within the International Nubian Campaign which was pursued in conjunction with the building of the High Dam at Aswan in the early 1960’s. A large quantity of archaeological data was collected by the SJE in a continuous area of northernmost Sudan and published during the subsequent decades. The present study aimed at transferring the geographical aspects of that data into a digital format thus enabling spatial enquires on the archaeological information to be performed in a computerised manner within a geographical information system (GIS). The landscape of the concession area, which is now completely submerged by the water masses of Lake Nasser, was digitally reconstructed in order to approximate the physical environment which the human societies of ancient Nubia inhabited. Information on the nearly 500 indexed archaeological sites of the SJE was classified and imported into the GIS. The potential of the system thereby established, validated against modern remote sensing data and aerial photography, was then demonstrated by a number of spatial analyses at an inter-site level. The resuls of those analyses contribute to discussions on various topics already raised within the SJE publication or elsewhere and includes issues on Nile palaeochannel reconstructions, seasonal habitation patterns and dedicatory orientation of elite tombs. The system hereby developed is intended to be used in further studies of the relevant and information-rich research fields of ancient Nubia for applications similar to those demonstrated in the present project or for educational and research purposes hitherto unpredicted. / Den Samnordiska Expeditionen till Sudanska Nubien (SJE) var en av de omfattande insatser av avgörande räddningsarkeologi inom den Internationella Nubienkampanjen som bedrevs i samband med byggandet av Höga Dammen i Aswan i början av 1960-talet. En stor mängd arkeologisk data samlades in av SJE i ett kontinuerligt område i nordligaste Sudan och publicerades under de efterföljande årtiondena. Denna studie ämnade överföra de geografiska aspekterna av den datan till ett digitalt format och därmed möjliggöra att rumsliga förfrågningar på den arkeologiska information kan utföras på ett datoriserat tillvägagångssätt i ett geografiskt informationssystem (GIS). Landskapet i koncessions-området, vilket nu är helt översvämmat av Nassersjöns vattenmassor, återskapades digitalt med syfte att approximera den fysiska omgivningen vilken de mänskliga samhällena i det forna Nubien bebodde. Information om de nära 500 indexerade fyndplatserna tillhörande SJE klassificerades och importerades in i detta GIS. Potentialen av det system som därmed skapats, validerat mot modern fjärranalysdata och flygfotografi, demonstrerades genom ett antal rumsliga analyser på en mellan-fyndplats-nivå. Resultaten av dessa analyser bidrar till diskussioner om diverse ämnen som redan tagits upp inom SJE-publikationen eller annorstädes och inkluderar frågor kring Nilens äldre dragningar, säsongsmässiga bosättningsmönster och avsiktlig orientering av elitgravar. Systemet som härvid har utvecklats är ämnat att användas i vidare studier av de relevanta och informationsrika forskningsområden som rör det forna Nubien för tillämpningar liknande de som demonstrerats i detta projekt eller för undervisnings- och forsknings-syften som hittills ej förutsetts.

Right-of-way business processes have been identified as one of the areas where information bottlenecks occur in transportation agencies, not only because of the amount of information involved, but also because of the interdependent nature of these activities. Transportation projects are associated with parcels whose status change during and after the project based on information from right-of-way activities. Geospatially enabled decision making tools enhance data interpretation as well as data retrieval of this information. By using enterprise-level applications, information sharing between the transportation agency, other jurisdictions, and the public becomes more efficient. Being able to quickly visualize the status of parcels in a geospatial environment further enhances the management of resources which, in turn, improves timely project delivery. This thesis presents a conceptual framework for an information management system and its geospatial enablement through a logical model for Geospatial Decision Making Activities (GDMA) in transportation right-of-way offices. The logical model for GDMA, presented in Unified Modeling Language, includes state machine diagram and data flow diagram models for tracking the parcel and capturing the geospatial enablement of right-of-way activities. / Master of Science

Cette thèse a pour objectif de modéliser et résoudre des problèmes d’optimisation d’un système d’auto-partage avec des voitures électriques dit « à un seul sens », où les utilisateurs peuvent prendre une voiture dans une station et la laisser ensuite dans une autre. Ce fonctionnement conduit généralement à une situation de déséquilibre dans la répartition des voitures avec certaines stations pleines et d’autres vides. Une des solutions utilisées par les opérateurs d’autopartage pour pallier ce problème est le recours à des agents pour déplacer les voitures selon le besoin. Identifier et répondre à ce besoin est un problème d’optimisation non trivial, notamment à cause de l’usage de véhicules électriques, ce qui engendre des contraintes de rechargement de batteries et d’autonomie. Le problème d’optimisation est décomposé en deux sous-problèmes : le premier est le problème d’affectation des voitures aux clients, ainsi que leurs routages, que nous nommons ROCSP pour Recharging One way Car Sharing Problem ; le second problème est celui du planning des agents et leurs routages que nous nommons ESRP pour Employee Scheduling Routing Problem. 1. Résolution du ROCSP : deux modélisations en Programmation Linéaire en Nombres Entiers (PLNE) sont proposées, la première basée sur les flots et la deuxième sur les chemins, ce qui fait que les deux modèles intègrent de manière différente les contraintes de recharge électrique. Comme la résolution exacte à travers les modèles PLNE s’avère très gourmande en temps de calcul et non adaptée aux instances d’auto-partage de taille réelle, nous proposons des heuristiques qui permettent dans un temps raisonnable d’optimiser la redistribution des voitures et la gestion du service. Ces heuristiques permettent de calculer le nombre de voitures et les différentes opérations de relocalisation (redistribution des voitures) à réaliser sur une journée donnée. 2. Résolution du ESRP : un modèle PLNE est proposé pour la résolution exacte du ESRP, et, en complément, des heuristiques sont proposées pour une résolution approchée et relativement rapide. L’objectif est la détermination du nombre minimal d’agents nécessaire pour effectuer les opérations de relocalisation qui découlent du premier problème, le ROCSP. Dans une partie prospective, et une fois les ROCSP et ESRP résolus dans leur version statique, nous nous focaliserons sur une autre variante du problème avec réservation dynamique. Nous proposons également d’explorer un nouveau concept - l’auto-copartage - qui se veut une hybridation entre autopartage et covoiturage. Les algorithmes proposés ont été validés sur le réseau Auto Bleue de la ville de Nice essentiellement, qui gère une flotte de véhicules électriques, en s’appuyant sur des modèles de génération de flux pour estimer la demande, mais aussi d’autres instances que nous avons générées pour simuler d’autres villes, au sein d’un Système d’Information Géographique. / This thesis aims at modelling and solving optimization problems related to the management of one-way-electric-car-sharing systems, where users can take a car from a station, use it, and then return it to another station. This generally leads to an imbalanced distribution of cars, with some full stations and other empty ones. A solution to this problem, implemented by car-sharing operators, is to employ staff agents to move cars as needed. However, identifying this need is a non-trivial optimization problem, especially since the system may be more constrained when the vehicles used are electric, which generates battery recharging and autonomy constraints. The global optimization problem addressed is then divided into two sub-problems. The first one is assigning the cars to customers, as well as their routing; it is denoted by ROCSP (Recharging OneWay Car Sharing Problem). The second problem involves agents planning and routing; it is denoted by ESRP (Employee Scheduling Routing Problem). 1. For the ROCSP, we propose two Mixed-integer linear programming (MILP) modelizations of the problem: One based on flows and the other based on paths. This means that the two models include the battery-recharging constraints in two different ways. As the exact resolution through the MILP models is quite expensive in terms of computational time and is not adapted for the resolution of real-size car-sharing instances, we introduce heuristics that enable the optimization of cars-redistribution and service management of the service within a reasonable amount of time. These heuristics allows the calculation of the number of cars and the various redistribution operations to be performed on a given day. 2. For the ESRP, this second problem is also addressed with MILP models for the exact resolution, and some heuristics are suggested for an approximate resolution. This process has reasonable calculation time and aims at finding the minimum number of agents to perform the necessary relocation operations that stem from the first problem, namely, the ROCSP. Once the ROCSP and ESRP solved in their static versions, we then focus on the ROCSP by exploring another variant of the problem : ROCSP with dynamic reservation. We also suggest to explore a new concept : Auto-CoPartage, which is a hybridization of car-sharing and carpooling. The stated algorithms are validated on the Auto Bleue electrical vehicles fleet in the network of the city of Nice, essentially by relying on flow generation models to estimate the demand, but also using other instances that we have generated for other cities. All the data are handled using a Geographical Information System.

<p>Floods are common natural disaster occurring in most parts of the world. This results in damage to human life and deterioration of environment. There have been immense uses of technology to mitigate measures of flood disaster i.e. structurally and non-structurally. Undoubtedly, structural measures are very expensive and time consuming which involves physical work like construction of dams, reservoirs, bridges, channel improvement, river diversion and other embankments to keep floods away from people. Whereas non-structural measures is concerned with planning like flood forecasting and warning, flood plain zoning, relief and rehabilitation for reducing the risk of flood damage to keep people away from floods. Thus, non-structural measures involve analysis, planning providing spatial information on maps with high accuracy in less time. Non-structural measures can help decision maker to plan an effective emergency response towards flood disaster. A one of the good way to plan non-structural measures is to analyze impact of flood in the flood prone areas. The thesis tries to analyze impact of flood on environment along the demarcated flood prone areas of Lake Roxen and Lake Glan in Östergötland County, Sweden. The thesis also proposes how to use current flood information during flood emergency utilizing geographical information system. This provides spatial information for area in the flood zone for assessment regarding flood vulnerability.</p><p>Using map overlay analysis in GIS software (ArcGIS); flood prone areas and topographic data along Lake Roxen and Lake Glan were digitized from PDF maps. Thus, the thesis work is an effort to analyze impact of flood when areas along Lake Roxen and Lake Glan are flooded. ESRI® GIS software Arc Map 9 and Arc View 3.3 is used for data preparation, integrating, analyzing, and spatial data with attribute table information. Finally, to show GIS can be an effective tool for development of flood emergency system as a part of disaster preparedness by the decision makers.</p>

Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-09-20T14:32:39Z No. of bitstreams: 1 BOAZ ANTÔNIO DE VASCONCELOS LOPES - TESE (PPGRN).pdf: 21835437 bytes, checksum: 1e2567b0059be149ffa12e6273f26d5c (MD5) / Made available in DSpace on 2018-09-20T14:32:39Z (GMT). No. of bitstreams: 1 BOAZ ANTÔNIO DE VASCONCELOS LOPES - TESE (PPGRN).pdf: 21835437 bytes, checksum: 1e2567b0059be149ffa12e6273f26d5c (MD5) Previous issue date: 2010-12-17 / A tese desenvolve uma proposta metodológica complexa que visa a dois propósitos: servir como um paradigma científico complexo para o estudo do meio ambiente e como um procedimento prático de gestão ambiental participativa apoiada por um sistema computacional de informação georreferenciada. O método complexo está baseado em três fundamentações teóricas: concepção, procedimento e instrumento. Desenvolvidos a partir das noções de racionalidade ambiental, teoria da complexidade e sistema de informação geográfica, respectivamente. Como procedimento prático foi feita uma aplicação do método proposto na realidade da gestão ambiental do Jardim Botânico de João Pessoa, em que foram analisadas as condições de sustentabilidade desse órgão público na perspectiva social, ambiental, econômica, histórica, política, cultural, administrativa, e proposto um modelo conceitual de Sistema de Informação Geográfica (SIG). A Mata do Buraquinho, onde está inserido o Jardim Botânico de João Pessoa, é uma das maiores reservas ambientais de Mata Atlântica urbana do Brasil, no entanto, foi observado que ainda não está sendo praticado o desenvolvimento sustentável nesse importante meio ambiente. Visto que a visão de gestão adotada é baseada na racionalidade econômica, o procedimento não é integrado nem participativo e inexiste instrumento de acompanhamento para a gestão ambiental do Jardim Botânico de João Pessoa. / The thesis develops a complex methodological proposal that seeks two purposes: to serve as a complex scientific paradigm for the study of the environment and as a practical procedure of participative environmental administration supported by a georeferenced information computacional system. The complex method is based on three theoretical bases: conception, procedure and instrument. These are developed starting from the notions of environmental rationality, theory of the complexity and geographical information system, respectively. As practical procedure it was made an application of the proposed method in the reality of the environmental administration of the Botanical Garden of João Pessoa, in which the conditions of sustainability of that public agency were analyzed in the social, environmental, economical, historical, politics, cultural, and administrative perspective, and proposed a conceptual model of Geographical Information System (GIS). The Buraquinho forest, where the Botanical Garden of João Pessoa is inserted, is one of the largest environmental reservations of urban Atlantic forest of Brazil, however, it was observed that still the maintainable development is not being practiced in that important environment. Because the vision of adopted administration is based on economical rationality, the procedure is not integrated and participative and attendance instrument inexists for the environmental administration of the Botanical Garden of João Pessoa.

Floods are common natural disaster occurring in most parts of the world. This results in damage to human life and deterioration of environment. There have been immense uses of technology to mitigate measures of flood disaster i.e. structurally and non-structurally. Undoubtedly, structural measures are very expensive and time consuming which involves physical work like construction of dams, reservoirs, bridges, channel improvement, river diversion and other embankments to keep floods away from people. Whereas non-structural measures is concerned with planning like flood forecasting and warning, flood plain zoning, relief and rehabilitation for reducing the risk of flood damage to keep people away from floods. Thus, non-structural measures involve analysis, planning providing spatial information on maps with high accuracy in less time. Non-structural measures can help decision maker to plan an effective emergency response towards flood disaster. A one of the good way to plan non-structural measures is to analyze impact of flood in the flood prone areas. The thesis tries to analyze impact of flood on environment along the demarcated flood prone areas of Lake Roxen and Lake Glan in Östergötland County, Sweden. The thesis also proposes how to use current flood information during flood emergency utilizing geographical information system. This provides spatial information for area in the flood zone for assessment regarding flood vulnerability. Using map overlay analysis in GIS software (ArcGIS); flood prone areas and topographic data along Lake Roxen and Lake Glan were digitized from PDF maps. Thus, the thesis work is an effort to analyze impact of flood when areas along Lake Roxen and Lake Glan are flooded. ESRI® GIS software Arc Map 9 and Arc View 3.3 is used for data preparation, integrating, analyzing, and spatial data with attribute table information. Finally, to show GIS can be an effective tool for development of flood emergency system as a part of disaster preparedness by the decision makers.

Since the earliest reported cases of HIV/AIDS probably in 1959 in Africa, there has been a consistent progression in the new HIV/AIDS infection cases. In South Africa, Gauteng, records one of the highest HIV/AIDS prevalence rates in the country. The Department of Health (DOH) South Africa conducts ongoing studies on HIV/AIDS at provincial levels; these studies monitor the prevalence of HIV/AIDS amongst pregnant women attending antenatal clinics, as a tool for determining and monitoring the prevalence, trends, patterns and spread of the disease in the general population. This study analyses sentinel and spatial data collected from the (DOH) and Statistics South Africa (StatsSA) respectively, and depicts them in the form of spatial maps, and then critically analyses the spatial patterns that occur. The research findings would hopefully contribute to the overall knowledge of HIV/AIDS and provide framework and relevant literature for further investigation. / Geography / M.Sc. (Geography)

Since the earliest reported cases of HIV/AIDS probably in 1959 in Africa, there has been a consistent progression in the new HIV/AIDS infection cases. In South Africa, Gauteng, records one of the highest HIV/AIDS prevalence rates in the country. The Department of Health (DOH) South Africa conducts ongoing studies on HIV/AIDS at provincial levels; these studies monitor the prevalence of HIV/AIDS amongst pregnant women attending antenatal clinics, as a tool for determining and monitoring the prevalence, trends, patterns and spread of the disease in the general population. This study analyses sentinel and spatial data collected from the (DOH) and Statistics South Africa (StatsSA) respectively, and depicts them in the form of spatial maps, and then critically analyses the spatial patterns that occur. The research findings would hopefully contribute to the overall knowledge of HIV/AIDS and provide framework and relevant literature for further investigation. / Geography / M.Sc. (Geography)