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It is undeniable that activities and events within the water, energy, and food (WEF) security nexus are inextricably linked and their relationships numerous and substantial. Complexity increases when factors governing the daily lives of humanity namely social, technology advancement, environment, economic, and policies (STEEP) adds upon the difficulty in addressing the relationships. It is thus paramount to address the problems from a holistic and systematic approach to maximise benefits as well as to minimize the negative impacts upon one another. However, there exists little to zero means of measuring their performance, whether qualitatively or quantitatively, within the context of a nexus. Moreover, minimal understanding exists regarding the relationships between the WEF securities in Malaysia, an emerging economy rich in natural resources, which envisions to be a developed nation. This research sought to establish a measurement system for the WEF security nexus in Malaysia within the context of resource security wellbeing, sectoral balance, and sustainable development using a System Dynamics (SD) approach. This entailed an extensive literature review and qualitative interview with key stakeholders from the industrial sectors. The front end of the SD process is concerned with obtaining important and relevant information from literature and interviews, which are then used to construct causal loop diagrams (CLD). The back end of the SD is concerned with converting the CLDs into a stock and flow diagram (SFD), which provides a platform for quantitative simulation of different well-designed scenarios. Key findings from this research can be highlighted; these include: renewables are necessary for the long-term energy plan of Malaysia, nuclear power is necessary to keep electricity tariff low, water tariff of supply and services are severely low, increasing self-sufficiency level (SSL) of Malaysia’s staple food is important, under-utilised crops are efficient in meeting nutrient requirements, and cash crops imposed systemic stresses upon the water sector more than the energy sector. Consequently, recommendations for policy makers are suggested accordingly to achieve a reasonable proportion of RE penetration, providing education on nuclear benefits, centralising and streamlining water governance, socio-economic improvement of water economics, increase SSL of staple food, embark upon widespread adoption of local under-utilized crops, and controlling land use of non-food crops. The outcome of this research forms a vital and novel contribution to knowledge, when it is a pioneering work to address the WEF security nexus for Malaysia; especially in considering their securities for the country as a system rather than unaffected individual entities. This work will contribute towards spearheading the awareness and, hopefully, trigger further and more in-depth work in transdisciplinary resource and technology management. As a pioneering effort, this research has nonetheless provided the foundation and the fundamental understanding to an integrative and inclusive cross-sectoral national resource backbone - The WEF security nexus measurement system of Malaysia.

La compréhension du rôle des aérosols atmosphériques dans le fonctionnement du système terre-atmosphère est limitée par les incertitudes sur leur répartition spatiale, leur composition et leurs sources. Si leurs impacts sur le changement climatique et l’environnement peuvent être évalués grâce aux modèles de chimie-transport, ces incertitudes en limitent la précision. Les observations satellitaires ont la capacité de fournir à l’échelle globale des informations précises sur un certain nombre de paramètres « aérosols » mais elles sont limitées par les conditions nuageuses, la périodicité des orbites et par le contenu en information, c’est-à-dire le type de paramètres que l’on peut retrouver suivant la nature de ces observations. Une approche prometteuse consiste à améliorer les champs d’émission des modèles en utilisant le principe de la modélisation inverse. Dans cette étude, nous avons conçu une méthode de restitution simultanée des sources d’émission de poussières désertiques, de carbone suie et de carbone organique à partir des produits satellitaires (POLDER/PARASOL) dérivés en utilisant l’algorithme GRASP, conjointement à une modélisation inverse du modèle GEOS-Chem. Cela nous a permis de créer une base de données d’émissions globales d’aérosols sur la période 2006 – 2011. Des simulations réalisées avec les modèles directs GEOS-Chem et GEOS-5/GOCART utilisant cette base de données montrent bien entendu un bon accord avec des observations POLDER mais aussi une nette amélioration de la modélisation de l’aérosol à l’échelle globale lorsque l’on compare les sorties à des mesures indépendantes du réseau AERONET ou à d’autres mesures spatiales (MODIS, MISR, OMI). / Understanding of the role that atmospheric aerosol play in the Earth-atmosphere system is limited by uncertainties in aerosol distribution, composition and sources. Thus, accurate chemical transport model simulation systems are crucial needed to analyse and predict atmospheric aerosols and their impacts on climate change and environment. Satellite observations have ability to provide an extensive spatial coverage and accurate aerosol products, however, are constrained by clear-sky condition, global coverage orbit cycle and information content. One of the most promising approaches is to reduce model uncertainty by improving the aerosol emission fields (i.e., model input) by means of inverse modeling relying on satellite observations as a constrain. In this study, we designed a method of simultaneous retrievals of desert dust, black carbon and organic carbon aerosol emission sources using aerosol data obtained from GRASP algorithm applied to POLDER/PARASOL satellite observations, and relying on the GEOS-Chem inverse modeling framework. Then, a satellite-based global aerosol emission database (2006-2011) has been developed. This aerosol emission database has been further evaluated by utilization in GEOS-Chem and GEOS-5/GOCART models. The model posterior simulation of aerosol properties employing the retrieved emissions shows a better agreement than the model prior simulation; it is true for not only fitted PARASOL products, but also for completely independent measurements from ground-based AERONET and satellites aerosol products (e.g., MODIS, MISR, OMI). The results suggest that the satellite-based aerosol emission database improves overall global aerosol modeling.

Bibliography: leaves 138-153.

Thesis (doctoral)--Tartu Ülikool, 2006. / Thesis based on six papers. Includes bibliographical references (p. 49-53).

The purpose of this study was to explore the servant-leadership role of selected Catholic high school principals, and to investigate how this leadership ideal is manifest in their daily professional lives. I employed a qualitative case study design, using the constructivist paradigm. The data gathering methods consisted of several interviews with each of the six participants, and extended field observation engagements with two of the principals.<p> For the participants of this study, family background, professional and extra-curricular experiences, and priests, were important sources of their notions of servant-leadership. Participants perceived Faith in Jesus Christ, and the positive outcomes of their Faith-informed professional practice as progenitive of their notions of servant-leadership.<p> The culminating framework from this study identified faith in Jesus Christ as the foundation of participants servant-leadership. According to this framework, respondents childhood experiences, mental models, passions, motivations, and professional convictions, served as antecedents to their identity formation which, in turn, propelled them towards servant-leadership. This framework delineated five aspects of servant-leadership: faith in the Lord Jesus Christ, community-inspired vision, relational credibility, sustained trust, and service. Service was identified as the culminating dimension, with the understanding that servant-leadership is established and strengthened in the very act of rendering service (through the day-to-day characteristics of servant-leadership), without which servant-leadership for Catholic school principals was considered meaningless.<p> According to the findings from study data, servant-leader signifying and inspiring qualities required of the servant-leader, included the following: altruism, patience, compassion, caring for the interests and growth of followers, living by example, and the unselfish desire to serve others. Additional fruits of servant-leadership are empowerment and respect for followers, establishment of healthy relationships, support for one another, collaborative leadership, offering constituents different possibilities for development, community building, self sacrifice of the leader for his/her community, and the servant-leader truly representing the idea of service to members of the school community.<p> Strategies for success in servant-leadership included tenacity of purpose, respect for all in the school community, fostering collaboration, care and trust of followers, and avoidance of needless reprimands in the event of failure. An underlying theme of this study is that servant-leadership provides hope for followers because of its exceptional interest in helping them develop their potentials and grow to become leaders. This study generated several implications for policy, practice, and further research. First, the policy requiring principals of Catholic high schools to be practicing Catholics and to pattern their leadership practices on the servant-leadership model warrants continuance. Second, a policy that superintendents of Catholic school districts make an intentional choice to promote servant-leadership would serve a good purpose. Third, using vivid servant-leadership symbols as a way of making a lasting impression on new principals during the hiring process is a practice worth continuing. Fourth, directors, superintendents, principals, and chaplains need to continue the practice of exemplary servant-leadership as an inspiration to new and other leaders. And, finally, a future researcher on this same topic may wish to include the perceptions of staff members, parents, and students in focus groups to generate in-depth data for analyses.

The purpose of this study was to explore the servant-leadership role of selected Catholic high school principals, and to investigate how this leadership ideal is manifest in their daily professional lives. I employed a qualitative case study design, using the constructivist paradigm. The data gathering methods consisted of several interviews with each of the six participants, and extended field observation engagements with two of the principals.<p> For the participants of this study, family background, professional and extra-curricular experiences, and priests, were important sources of their notions of servant-leadership. Participants perceived Faith in Jesus Christ, and the positive outcomes of their Faith-informed professional practice as progenitive of their notions of servant-leadership.<p> The culminating framework from this study identified faith in Jesus Christ as the foundation of participants servant-leadership. According to this framework, respondents childhood experiences, mental models, passions, motivations, and professional convictions, served as antecedents to their identity formation which, in turn, propelled them towards servant-leadership. This framework delineated five aspects of servant-leadership: faith in the Lord Jesus Christ, community-inspired vision, relational credibility, sustained trust, and service. Service was identified as the culminating dimension, with the understanding that servant-leadership is established and strengthened in the very act of rendering service (through the day-to-day characteristics of servant-leadership), without which servant-leadership for Catholic school principals was considered meaningless.<p> According to the findings from study data, servant-leader signifying and inspiring qualities required of the servant-leader, included the following: altruism, patience, compassion, caring for the interests and growth of followers, living by example, and the unselfish desire to serve others. Additional fruits of servant-leadership are empowerment and respect for followers, establishment of healthy relationships, support for one another, collaborative leadership, offering constituents different possibilities for development, community building, self sacrifice of the leader for his/her community, and the servant-leader truly representing the idea of service to members of the school community.<p> Strategies for success in servant-leadership included tenacity of purpose, respect for all in the school community, fostering collaboration, care and trust of followers, and avoidance of needless reprimands in the event of failure. An underlying theme of this study is that servant-leadership provides hope for followers because of its exceptional interest in helping them develop their potentials and grow to become leaders. This study generated several implications for policy, practice, and further research. First, the policy requiring principals of Catholic high schools to be practicing Catholics and to pattern their leadership practices on the servant-leadership model warrants continuance. Second, a policy that superintendents of Catholic school districts make an intentional choice to promote servant-leadership would serve a good purpose. Third, using vivid servant-leadership symbols as a way of making a lasting impression on new principals during the hiring process is a practice worth continuing. Fourth, directors, superintendents, principals, and chaplains need to continue the practice of exemplary servant-leadership as an inspiration to new and other leaders. And, finally, a future researcher on this same topic may wish to include the perceptions of staff members, parents, and students in focus groups to generate in-depth data for analyses.

Reproduction de : Thèse d'exercice : Chirurgie dentaire : Nantes : 2008. / Bibliogr.

Thèse de doctorat : Sciences naturelles : Paris, Faculté des sciences : 1847. / Titre provenant de l'écran-titre.

Mémoire de master en sciences de l'information et des bibliothèques : Services documentaires numériques : Villeurbanne, ENSSIB : 2007. / Texte intégral. Résumé en français et en anglais. Bibliogr. f. 83-86. Sitographie f. 87.