Computer Modeling, Analysis and Visualization of Angkor Wat Style Temples in Cambodia

Das archäologische Gebiet von Angkor und die gigantischen Steintempel sind die verbliebenen Hauptquellen zu den fast vergessenen alten Khmer-Zivilistation die einst ihre Blühtezeit zwischen dem 7. und 13. Jahrhundert hatte. Hunderte von Tempeln wurden erbaut, doch mit der Zeit sind sie fast in Vergessenheit geraten, und haben erleidete sehr unter dem tropischen Klima, Kriegen aber auch Plünderungen gelitten. Die meisten von Ihnen liegen nun völlig in Trümmern, und Viele sind teilweise zerstört oder im Einsturzgefahr. Inzwischen wurde Angkor als UNESCO Weltkulturerbe erklärt und ist eines der beliebtesten Tourismus-Ziele, aber auch für Wissenschaftler attraktive die neue Methoden zur Unterstützung der Restaurierung, Bewahrung und Tempel-Rekonstruktion erforschen. Die Buddhistischen und Hinduistischen Tempel von Angkor wurden auf Basis der heiligen Lotusblüte, die in beiden Religionen den Mikrokosmos darstellt, als einem der Grundsymbole erbaut. Sechs Hauptdarstellungsformen des Lotus wurden identifiziert, die in einer bestimmten Weise kombiniert, und fast auf allen Tempelelementen abgebildet sind. 3D Computer-Rekonstruktionen von solchen Tempelelementen sind schwierig und enorm aufwändig. Diese Dissertation befasst sich mit der Analyse architektonischer Funktion und Geometrie der Lotusmotive und dem Versuch die Kombinationsregel der sechs Lotusmotive zu entschlüsseln. Um dies zum Einsatz zu bringen werden, mit Hilfe mathematischer Modelle und bestimmter Algorithmen eine neue modul-basierte Rekonstruktionsmethode und zwei weitere Methoden als Ergänzung speziell für Angkor Temple entwickelt. Das Ergebnis stellt ein in dieser Dissertation entwickeltes Computerprogramm dar, das drei verschiedene Rekonstruktionswerkzeuge umfasst und mit dem hoch detaillierte 3D Modelle einfach und schnell erzeugt werden können. Schließlich werden mehrere 3D Modelle von ausgewählten Tempeln als Endergebnis vorgestellt

Environmental justice and Chinese dam-building in the global South

Chinese investments in large hydropower dams have rapidly increased all over the world in the last 20 years. Some of these projects have been contested both from a technological and political point of view due to the ways in which decisions have been made, as well as in relation to the resulting social-ecological change and ecological distributional aspects. From an Environmental Justice perspective, this paper analyses the main drivers and contested aspects of Chinese hydropower investments in the global South. The paper builds on Chinese projects located in different regions of the world, by combining information from the literature and the Global Atlas of Environmental Justice – EJAtlas dataset. Based on the analysis of Chinese hydropower projects and environmental justice concerns, this paper sheds light on the current literature on drivers and multidimensional conflictive outcomes of these large hydropower dam investments

Schooling feeding versus scholarship program : which one is key to help children learn reading, writing and simple calculation skills?; final draft report

The study evaluates benefits of the school meals program versus scholarship programs in primary education in terms of cost effectiveness, impacts on child enrollment, class attendance and students’ abilities to read, write and do math calculations. Further evaluation over time is necessary as results are mixed. Both programs appear to be valuable in terms of child health and class attendance

Cambodia–China Relations: A Positive-Sum Game?

China has re-emerged to become a dominant foreign player in Cambodia. Politically, Cambodia is one of China’s oldest and closest allies. Economically, China is Cambodia’s top foreign investor, a major donor, and an increasingly important trading partner. Culturally, Chinese values are deeply embedded in many aspects of Cambodian society. However, China’s dominance is surrounded by renewed controversies. While the government warmly welcomes Chinese aid, saying that it comes with no strings attached, many experts are concerned that China is providing aid for more nefarious reasons. Critics also accuse Chinese investment and aid of having exacerbated corruption, weakened governance and harmed human rights, and of ruining Cambodia’s natural resources and environment. With such controversies, it is relevant and significant to assess the roles that China has played and continues to play in Cambodia’s socio-economic development. Using expert interviews, media analysis and an extensive literature review, this paper uniquely contributes to the existing discussion on China–Cambodia relations by closely examining the controversies of China’s investment and aid, critically analysing China’s interests in Cambodia, and asking if the relationship between the two nations is a positive-sum game

Challenges and Priorities of Municipal Solid Waste Management in Cambodia

Municipal solid waste (MSW) management is one of the utmost challenges for Cambodia’s city and district centers. The unsound management of MSW has detrimentally affected the environment and human health. In the present study, an attempt has been made to provide a comprehensive insight into the generation and characteristics, policies and legislation frameworks, management arrangement, collection, treatment, and disposal of MSW. The experience of developed and developing countries and the challenges and priorities of MSW management in Cambodia are also highlighted. In Cambodia, about 4.78 million tons of MSW were generated in 2020, with a 0.78 kg/capita/day generation rate. Only 86% of cities and districts have access to MSW collection services. The current practice of MSW management is reliance on landfill (44%). There are 164 landfills operating countrywide, receiving about 5749 tons of MSW per day. Recycling, incineration, and composting share 4%, 4%, and 2% of MSW generation, respectively. In 2021, the total revenue that was recovered from recyclables was USD 56M. The study concludes several major challenges and proposes valuable suggestions, which may be beneficial for the improvement of the current system to support the sustainable management of MSW in Cambodia

Institutions and Development : Analysis of the Effects of Institutional Environment on Agricultural Performance in Cambodia

Source : ABES [http://www.idref.fr/033702462/id] - theses.fr, 27/01/2022The purpose of this dissertation is to find out if the institutional environment affects agricultural performance in the case of Cambodia and how the former exerts an influence on the latter. To respond to this purpose, three hypotheses are formulated: (1) the institutional environment plays an important role in protecting property rights in land; (2) secure property rights in land increase agricultural productivity through the stimulation of farmers’ investment incentives; (3) secure property rights in land raise agricultural productivity through the facilitation of access to formal credit. Methodologically, the research is based on different theories of New Institutional Economics, which explain that institutions determine the incentive structure of economic actors in society. Specifically, political institutions shape economic institutions, i.e. property rights, which in turn affect economic performance in general and agricultural performance in particular. The research is also based on the data from various sources, such as government agencies, local research institutes, non-governmental organizations, and international organizations, which can serve as a basis for empirical analyses. In addition, the case of Sub-Saharan Africa is also studied for comparison. The result of the dissertation confirms strongly the first two hypotheses but slightly the last one. The result indicates that the impact of institutional environment on agricultural productivity through the protection of property rights in land is context-specific because it should be complemented by a favorable economic environment, such as improved physical infrastructure and agricultural technology and developed market institutions. Furthermore, it is learned that, in developing countries, the desired outcomes will not be obtained if formal institutions (i.e., formal land registration) are imposed through a top-down approach in areas where the existing informal institutions are strongly embedded.L’objectif de cette thèse est de découvrir si l’environnement institutionnel affecte la performance agricole dans le cas du Cambodge et comment le premier influe sur la dernière. Pour répondre à cet objectif, trois hypothèses sont formulées : (1) l’environnement institutionnel joue un rôle important dans la protection des droits de propriété foncière ; (2) les droits de propriété foncière sécurisés augmentent la productivité agricole par la stimulation des incitations d’investissement des agriculteurs ; (3) les droits de propriété foncière sécurisés accroissent la productivité agricole par la facilitation de l’accès au crédit formel. Méthodologiquement, la recherche est basée sur les différentes théories de la Nouvelle Economie Institutionnelle, qui expliquent que les institutions déterminent la structure des incitations des acteurs économiques dans une société. Spécifiquement, les institutions politiques déterminent les institutions économiques, c’est-à-dire les droits de propriété, qui à leur tour affectent la performance économique en général et la performance agricole en particulier. La recherche est également basée sur les données venant de diverses sources, telles que des agences gouvernementales, des instituts de recherche locaux, des organisations non-gouvernementales et des organisations internationales, qui sont susceptibles de servir de base pour des analyses empiriques. En outre, le cas de l’Afrique subsaharienne est également étudié à titre de comparaison. Le résultat de la thèse confirme fortement les deux premières hypothèses, mais peu la dernière. Le résultat indique que l’impact de l’environnement institutionnel sur la productivité agricole via la protection des droits de propriété foncière est lié au contexte particulier parce qu’il devrait être complété par un environnement économique favorable, tel que l’infrastructure physique et la technologie agricole améliorées et les institutions du marché développées. De plus, on apprend que les résultats désirés ne sont pas obtenus si les institutions formelles (c’est-à-dire, l’enregistrement formel des terres) sont imposées via l’approche top-down dans les régions où les institutions informelles existantes sont fortement encastrées

Cambodia–China Relations: A Positive-Sum Game?

China has re-emerged to become a dominant foreign player in Cambodia. Politically, Cambodia is one of China’s oldest and closest allies. Economically, China is Cambodia’s top foreign investor, a major donor, and an increasingly important trading partner. Culturally, Chinese values are deeply embedded in many aspects of Cambodian society. However, China’s dominance is surrounded by renewed controversies. While the government warmly welcomes Chinese aid, saying that it comes with no strings attached, many experts are concerned that China is providing aid for more nefarious reasons. Critics also accuse Chinese investment and aid of having exacerbated corruption, weakened governance and harmed human rights, and of ruining Cambodia’s natural resources and environment. With such controversies, it is relevant and significant to assess the roles that China has played and continues to play in Cambodia’s socio-economic development. Using expert interviews, media analysis and an extensive literature review, this paper uniquely contributes to the existing discussion on China–Cambodia relations by closely examining the controversies of China’s investment and aid, critically analysing China’s interests in Cambodia, and asking if the relationship between the two nations is a positive-sum game

Institutions et développement : analyse des effets de l’environnement institutionnel sur la performance agricole au Cambodge

L’objectif de cette thèse est de découvrir si l’environnement institutionnel affecte la performance agricole dans le cas du Cambodge et comment le premier influe sur la dernière. Pour répondre à cet objectif, trois hypothèses sont formulées : (1) l’environnement institutionnel joue un rôle important dans la protection des droits de propriété foncière ; (2) les droits de propriété foncière sécurisés augmentent la productivité agricole par la stimulation des incitations d’investissement des agriculteurs ; (3) les droits de propriété foncière sécurisés accroissent la productivité agricole par la facilitation de l’accès au crédit formel. Méthodologiquement, la recherche est basée sur les différentes théories de la Nouvelle Economie Institutionnelle, qui expliquent que les institutions déterminent la structure des incitations des acteurs économiques dans une société. Spécifiquement, les institutions politiques déterminent les institutions économiques, c’est-à-dire les droits de propriété, qui à leur tour affectent la performance économique en général et la performance agricole en particulier. La recherche est également basée sur les données venant de diverses sources, telles que des agences gouvernementales, des instituts de recherche locaux, des organisations non-gouvernementales et des organisations internationales, qui sont susceptibles de servir de base pour des analyses empiriques. En outre, le cas de l’Afrique subsaharienne est également étudié à titre de comparaison. Le résultat de la thèse confirme fortement les deux premières hypothèses, mais peu la dernière. Le résultat indique que l’impact de l’environnement institutionnel sur la productivité agricole via la protection des droits de propriété foncière est lié au contexte particulier parce qu’il devrait être complété par un environnement économique favorable, tel que l’infrastructure physique et la technologie agricole améliorées et les institutions du marché développées. De plus, on apprend que les résultats désirés ne sont pas obtenus si les institutions formelles (c’est-à-dire, l’enregistrement formel des terres) sont imposées via l’approche top-down dans les régions où les institutions informelles existantes sont fortement encastrées.The purpose of this dissertation is to find out if the institutional environment affects agricultural performance in the case of Cambodia and how the former exerts an influence on the latter. To respond to this purpose, three hypotheses are formulated: (1) the institutional environment plays an important role in protecting property rights in land; (2) secure property rights in land increase agricultural productivity through the stimulation of farmers’ investment incentives; (3) secure property rights in land raise agricultural productivity through the facilitation of access to formal credit. Methodologically, the research is based on different theories of New Institutional Economics, which explain that institutions determine the incentive structure of economic actors in society. Specifically, political institutions shape economic institutions, i.e. property rights, which in turn affect economic performance in general and agricultural performance in particular. The research is also based on the data from various sources, such as government agencies, local research institutes, non-governmental organizations, and international organizations, which can serve as a basis for empirical analyses. In addition, the case of Sub-Saharan Africa is also studied for comparison. The result of the dissertation confirms strongly the first two hypotheses but slightly the last one. The result indicates that the impact of institutional environment on agricultural productivity through the protection of property rights in land is context-specific because it should be complemented by a favorable economic environment, such as improved physical infrastructure and agricultural technology and developed market institutions. Furthermore, it is learned that, in developing countries, the desired outcomes will not be obtained if formal institutions (i.e., formal land registration) are imposed through a top-down approach in areas where the existing informal institutions are strongly embedded

Institutions and Development : Analysis of the Effects of Institutional Environment on Agricultural Performance in Cambodia

Source : ABES [http://www.idref.fr/033702462/id] - theses.fr, 27/01/2022The purpose of this dissertation is to find out if the institutional environment affects agricultural performance in the case of Cambodia and how the former exerts an influence on the latter. To respond to this purpose, three hypotheses are formulated: (1) the institutional environment plays an important role in protecting property rights in land; (2) secure property rights in land increase agricultural productivity through the stimulation of farmers’ investment incentives; (3) secure property rights in land raise agricultural productivity through the facilitation of access to formal credit. Methodologically, the research is based on different theories of New Institutional Economics, which explain that institutions determine the incentive structure of economic actors in society. Specifically, political institutions shape economic institutions, i.e. property rights, which in turn affect economic performance in general and agricultural performance in particular. The research is also based on the data from various sources, such as government agencies, local research institutes, non-governmental organizations, and international organizations, which can serve as a basis for empirical analyses. In addition, the case of Sub-Saharan Africa is also studied for comparison. The result of the dissertation confirms strongly the first two hypotheses but slightly the last one. The result indicates that the impact of institutional environment on agricultural productivity through the protection of property rights in land is context-specific because it should be complemented by a favorable economic environment, such as improved physical infrastructure and agricultural technology and developed market institutions. Furthermore, it is learned that, in developing countries, the desired outcomes will not be obtained if formal institutions (i.e., formal land registration) are imposed through a top-down approach in areas where the existing informal institutions are strongly embedded.L’objectif de cette thèse est de découvrir si l’environnement institutionnel affecte la performance agricole dans le cas du Cambodge et comment le premier influe sur la dernière. Pour répondre à cet objectif, trois hypothèses sont formulées : (1) l’environnement institutionnel joue un rôle important dans la protection des droits de propriété foncière ; (2) les droits de propriété foncière sécurisés augmentent la productivité agricole par la stimulation des incitations d’investissement des agriculteurs ; (3) les droits de propriété foncière sécurisés accroissent la productivité agricole par la facilitation de l’accès au crédit formel. Méthodologiquement, la recherche est basée sur les différentes théories de la Nouvelle Economie Institutionnelle, qui expliquent que les institutions déterminent la structure des incitations des acteurs économiques dans une société. Spécifiquement, les institutions politiques déterminent les institutions économiques, c’est-à-dire les droits de propriété, qui à leur tour affectent la performance économique en général et la performance agricole en particulier. La recherche est également basée sur les données venant de diverses sources, telles que des agences gouvernementales, des instituts de recherche locaux, des organisations non-gouvernementales et des organisations internationales, qui sont susceptibles de servir de base pour des analyses empiriques. En outre, le cas de l’Afrique subsaharienne est également étudié à titre de comparaison. Le résultat de la thèse confirme fortement les deux premières hypothèses, mais peu la dernière. Le résultat indique que l’impact de l’environnement institutionnel sur la productivité agricole via la protection des droits de propriété foncière est lié au contexte particulier parce qu’il devrait être complété par un environnement économique favorable, tel que l’infrastructure physique et la technologie agricole améliorées et les institutions du marché développées. De plus, on apprend que les résultats désirés ne sont pas obtenus si les institutions formelles (c’est-à-dire, l’enregistrement formel des terres) sont imposées via l’approche top-down dans les régions où les institutions informelles existantes sont fortement encastrées

Hydropower and local community: A case study of the Kamchay dam, a China-funded hydropower project in Cambodia

To solve its chronic power shortage, the Government of Cambodia has placed the development of hydropower as one of the national priorities. With a total of US$2.4bn in investment, China is the most prominent player in hydropower development in Cambodia. The increase of hydropower projects and China’s involvement has sparked national controversy. There are contentious debates on such projects despite their potential economic benefits because of the concerns over their social and environmental consequences. Combining site visits and field interviews, this article studies the China-funded Kamchay hydropower project in Cambodia and examines its impact on the local community two years after it began operating. This article makes a distinct contribution to the ongoing debate on the effects of large-scale natural resource investments on sustainable development in Cambodia