Dissertation com aug 2010 (7 Ergebnisse)

Taschenbuch. Zustand: Neu. Neuware - International commercial contracts in the context of increasing globalization of the national markets have posed some of the most difficult questions of the legal theory as developed since the emergence of nation states; those are, whether it is possible or desirable to allow international commercial contracts to be governed by the law merchant or, in its medieval name, lex mercatoria, a body of rules which has not been derived from the will of sovereign states, but mainly from transnational trade usages and practices, and to what extent those rules should govern transnational transactions. The traditional approach of legal positivism to the questions maintains that law governing contracts containing a foreign element should be a national law which will be determined according to choice of law rules. However, the particularities of cross border trade yield unsatisfactory results when the rules essentially designed for the settlement of domestic disputes or national laws pertaining to international economic relations, but developed under the influence of a certain legal tradition, are tried to be applied. New solutions are needed to overcome the special problems of international trade between merchants from different legal systems.In that regard, while the international commercial arbitration which has been freed from the constraints of the domestic laws is an important step, the courts generally applying the principle of party autonomy which allows parties to designate the law that will apply to their transactions have proved insufficient due to the positivistic influence on the conflict of laws rules of most countries which has limited parties' choice of law to the national substantive laws. The problems created by those inconsistencies and divergences have been felt more strongly in the European Community which constitutes an internal market by integrating the national markets of Member States into a single one. The present paper is an attempt to search for answers to those questions with a special emphasis on the situation in the European Community on the basis of the idea that law as a servant of social need must take account of the far reaching and dramatic socio-economic changes.…

Taschenbuch. Zustand: Neu. Neuware - Staphylococcus epidermidis is the leading cause of hospital-acquired infections associated with implanted medical devices. Likewise, Proteus mirabilis is one of the leading causes of nosocomial Urinary Tract Infections (UTIs) and is associated with urinary catheter blockage. Both organisms produce biofilms, which make them less susceptible to antibiotics. Therefore, these infections are often notoriously difficult to treat and in many cases lead to complications. Preventing biofilm formation or killing a pre-existing biofilm would be useful solutions since biofilm formation is a phenomenon commonly observed in these organsims.This study investigated the in vitro efficacy of Bismuth-ethanedithiol (BisEDT) against biofilms produced by P. mirabilis and S. epidermidis. Anti-biofilm activity of BisEDT was evaluated in terms of inhibiting/preventing biofilm formation and eradicating/killing pre-formed biofilm produced by single species S. epidermidis and P. mirabilis.…

Taschenbuch. Zustand: Neu. Neuware - Disrupting Fraternity Culture explores how young men and women perform male and female roles to 'fit in' during the college or young adult years. It is arguable that many young men 'perform' the role of the hegemonic male to fit in among peers, and that performing the hegemonic male is to perform acts of violence against women. This project actively examines university organizations and institutions, such as fraternities and sororities, which can encourage anti-female attitudes. All of the narratives used in this study were given willingly and given primarily by peers. The names of the individuals and the names of the fraternity and sorority houses the individuals belong to will not be revealed in this project. Fraternities and sororities are useful institutions to study because so many young men and women desire to become a part of Greek culture, and in order to fit in, may not realize that they are contributing to and maintaining an institution of violence against women. It is worthy to explore why so many young men and women choose to partake in this elective rite of passage, especially considering the mental and physical hazing men and women endure. Both men and women are telling stories and participating in rituals that objectify women, and the attitudes and behaviors conveyed in these environments are ubiquitously contributing to views on troubling violence.…

Taschenbuch. Zustand: Neu. Neuware - Pyrene, a four-ring polycyclic aromatic hydrocarbon (PAH), was identified as the chemical that requires the largest land area for soil bioremediation due to the slow rate of biodegradation at the Libby, Montana Superfund site. Prepared bed land treatment is the specific bioremediation technology that is currently employed at this site. Although bioremediation has been widely accepted for treatment of contaminated soil due to its low cost, the effective application of bioremediation is often hindered by the lack of information related to: 1) biochemical pathways, 2) enzymatic mechanisms, and 3) effects of amendments. Mycobacterium sp. KMS is a new strain isolated from the land treatment units of the Libby site and has been found to utilize pyrene as a carbon and energy source. The genome of Mycobacterium sp. KMS was sequenced by Joint Genome Institute (JGI) and is publically available in the NCBI database. This dissertation is comprised of seven chapters. Chapter I provides information concerning PAH characteristics, the Libby Superfund site, accelerated bioremediation approaches, and the hypotheses for this dissertation. Chapter 2 addresses the pyrene degradation pathway used by Mycobacterium sp. KMS based on isolating and identifying pyrene degradation intermediates. Chapter 3 describes the enzymatic mechanism of pyrene degradation by Mycobacterium sp. KMS. Chapter 4 presents the effect of Elliott soil HA (ESHA) amendment on pyrene solubility in soil slurry systems and pyrene mineralization in unsaturated soil microcosms. Chapter 5 describes the overall effect of ESHA amendment on pyrene distribution in a soil slurry system. Chapter 6 addresses the engineering significance of this study and future research recommendations. Chapter 7 summarizes the dissertation. The main theme of this dissertation is to provide the basic scientific information and knowledge for better understanding, better control, and improvement of the bioremediation process at PAH-contaminated sites.…

Taschenbuch. Zustand: Neu. Neuware - This study examines U.S.-Mexico sugar trade with special attention given to the impact of changes in trade and market environments caused by implementation of the North American Free Trade Agreement (NAFTA) and the introduction of high fructose corn syrup (HFCS). These two factors contributed to shaping sugar markets in the United States and Mexico as well as sugar trade between the two countries. The study includes two sections: (1) a description of the sugar markets from an historic point of view and (2) an empirical study forecasting the market and trade outlook.In section one, characteristics of the sugar industry and transition of the sugar markets brought by the two factors (NAFTA and HFCS) are presented. Adoption of HFCS shaped the U.S. sweetener market in the 1980s and a similar phenomenon appears to be beginning in Mexico. This is explained by not only income growth but also the provisions of NAFTA that facilitate U.S. HFCS to enter the Mexican market and restrict Mexican sugar to the U.S. market. Although Mexico is promised favorable access to the U.S. market under NAFTA, it has not been successful in exporting sugar; rather, the focus has been to suppress HFCS adoption in the domestic market.Next, an empirical study comprised of three analyses is presented. Regression results from the market analysis showed that the estimated price elasticities for both sugar demand and supply are significant and inelastic. These estimates are built into the second model that examines bilateral trade. Results from simulations of the trade analysis indicate Mexico's HFCS adoption rate will determine the magnitude of Mexico's sugar export, which consequently poses a significant influence on U.S. markets. Also the way the U.S. government allocates quotas among exporters will have a significant impact, particularly on the costs of the U.S. sugar program. Game theory analysis is then used to assess what strategies the involved participants will prefer. The results suggest that there will be a conflict of interests and that the U.S. HFCS industry may play an influential role in forming a sugar policy. …

Taschenbuch. Zustand: Neu. Neuware - In this research, the author analyzes Derrida's understanding of the way society is created out of a collection of individuals, how the individuals preserve their singularity and freedom within a social system and the meaning of ethics, as it comes out in his early writings. In this work, the researcher used a phenomenological method of research and Cassirer's way of analyzing the symbolic forms as a framework to analyze the early writing of Derrida. Although it is not a common approach to combine Derrida's philosophy with that of Cassirer's, the researcher found that Cassirer's ideas help to show Derrida's unique position.…

Taschenbuch. Zustand: Neu. Neuware - This thesis investigates the issues of implementing multi-sensor imaging system for surveillance applications. Three topics for the fusion of infrared and electro-optic images are studied, i.e. registration, fusion, and evaluation. The first topic is the image registration or alignment, which is to associate corresponding pixels in multiple images to the same physical point in the scene. A trajectory-based method for registering infrared and electro-optic video sequences is proposed in this study. The initial registration parameters are derived from matching the trajectories across the consecutive video frames. Further refinement can be carried out by applying a maximum mutual information approach. The frame difference, from which the feature point is detected, is found with an image structural similarity measurement. The second topic is the implementation of pixel-level fusion. Two applications are considered in this study. Motivated by the adaptive enhancement, a modified pixel-level fusion scheme is proposed to implement the context enhancement. A visual image is first enhanced with the corresponding infrared image. Then, the enhanced image is fused with the visual image again to highlight the background features. This achieves a context enhancement most suitable for human perception. As the application of multi-sensor concealed weapon detection (CWD) is concerned, this thesis clarifies the requirements and concepts for CWD. How the CWD application can benefit from multi-sensor fusion is identified and a framework of multi-sensor CWD is proposed. A solution to synthesize a composite image from infrared and visual image is presented with experimental results. The synthesized image, on one hand provides both the information of personal identification and the suspicious region of concealed weapons; on the other hand implements the privacy protection, which appears to be an important aspect of the CWD process. The third topic is about the fusion performance assessment. In this study, the evaluation metrics are developed for reference-based assessment and blind assessment respectively. An absolute measurement of image features, namely phase congruency, is employed. Future work should include the reliability and optimization study of multiple image sensors from applications' and human perception-related perspectives. This thesis is a contribution to such research.…