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<p> This study, an attempt to understand and define some of Franz Kafka's literary aims, rests mainly on an examination of the story "Forschungen eines hundes" . The thoughts which appear in this story, and the methods which Kafka us s to express these thoughts, are compared with certain ideas and modes of expression which appear in his notebooks , in the story "Josefine die Sangerin oder das Volk der Muse" and in some of the other fiction. </p> <p> Because of the extreme divergence in the interpretations of Kafks's works , there will be in this study no discussion or the secondary literature. </p> <p> Works of criticism have, however, not been disgarded, and list of consulted texts ill be found in the Bibliography. </p> / Thesis / Master of Arts (MA)

En aquesta tesi es presenta un model biomecànic de la mà orientat al disseny d'eines manuals.S'ha comprovat que una correcta adaptació del disseny de l'eina al treballador i a la tasca a realitzar (disseny ergonòmic) suposa una millora dels processos de producció i una reducció de les baixes laborals derivades de l'ús de les eines, i per tant un benefici per a la salut dels treballadors i per a la millora de les condicions de treball.En l'actualitat l'avaluació i el disseny ergonòmic d'eines manuals es realitza únicament en base a una sèrie de recomanacions experimentals de vegades poc realistes o amb una avaluació pràctica insuficient.En aquest sentit, es proposa com a objectiu d'aquesta tesi el desenvolupament d'un model biomecànic de la mà amb la finalitat última d'ajudar en el procés de disseny d'eines manuals, des del punt de vista ergonòmic.Després d'analitzar els models biomecànics existents a la literatura, i d'acord amb l'anatomia funcional de la mà i l'objectiu perseguit, s'ha desenvolupat un model biomecànic de la mà escalable que permet estimar la distribució d'esforços musculars durant la realització tant d'agarrades estàtiques com dinàmiques. El model permet, així mateix, predir màximes forces de prensió per als distints tipus d'agarrada. L'escalabilitat del model permet analitzar distints percentils i grups de població.El model biomecànic desenvolupat ha estat convenientment validat quant a la predicció de màximes forces d'agarrada i a l'estimació d'esforços musculars, la qual cosa permet assegurar la bondat de les aproximacions considerades durant el procés del seu desenvolupament d'acord amb els objectius perseguits.El model ha estat utilitzat amb una sèrie d'aplicacions senzilles orientades a investigar les seues possibilitats i limitacions. En particular el model pot utilitzar-se per estudiar l'espai disponible d'agarrada per a distints grups de població, per estimar màximes forces d'agarrada, pot ajudar a triar la forma d'agarrada més idònia i per tant a definir la forma i zona d'agarrada, permet comparar la qualitat de dos dissenys distints, i pot emprar-se per generar noves recomanacions de disseny.Així mateix es presenta una classificació sistemàtica d'agarrades desenvolupada com pas previ a l'estudi i aplicació del model a l'agarrada d'eines manuals, així com una tècnica fotogramètrica desenvolupada per mesurar la postura sense entorpir el comportament normal dels subjectes en situacions reals d'ús de les eines.

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Gustav Mahler’s Lieder eines fahrenden Gesellen (first published 1887) feature as their only character a miserable wayfarer who laments his unrequited love for someone and who, in spite of all his beautiful pastoral surroundings, cannot help but feel deep unhappiness. Using Lacan’s three orders (Imaginary, Symbolic and Real) and further developments of his theory by Slavoj Žižek in The Sublime Object of Ideology, I argue that the eyes of the wayfarer’s beloved are the Lacanian Real that disrupts his symbolic network and thus are the origin of his traumatic existence. His misery becomes an immanent part of his identity and he can therefore only exist through this feeling. Furthermore I suggest that, although he laments the situation, he subconsciously desires the unhappy love affair as a way of guaranteeing his own existence as a wayfarer, in accordance with Freud’s concept of Repetition compulsion.

The interest in geographical information technologies has grown considerably over the last three decades. Today, geographical information is no longer the exclusive domain of government and public administrations (in the areas of planning, demography and topography), thanks to the development of computer tools which have enabled firms and academic institutions to use this information. Statistical information of this kind is usually published at a variety of territorial levels in order to provide information of interest to all potential users. When using this information, researches have two alternatives for defining the basic territorial units for use in the study: first, they may use geographical units designed following normative criteria (that is, officially established territorial units such as towns or provinces) or, second, they can apply analytical criteria in order to design geographical units directly related to the phenomena under examination. Most empirical studies use geographical units based on normative criteria, for several reasons: these units are officially established, they have traditionally been used in other studies, their use makes comparison of results easier and there is less scope for criticism. However, studies using units of this type may have an "Achilles' heel": they may be very restrictive, or unsuited the problem considered. For example, if we are analysing phenomena such as the regional effects of monetary and fiscal policy, how will the results be affected if the aggregated areas^ in each region are heterogeneous? Can these results change if the areas are redefined in such a way that each region contains similar areas? This situation could be improved by the use of regionalisation processes to design geographical units based on analytical criteria by aggregating small geographical units^, but without reaching the upper level, or alternatively by combining information obtained from different levels. In this context, the design of analytical geographical units should consider three fundamental aspects: a. Geographical contiguity. The aggregation of areas into regions such that the areas assigned to a region are internally connected or contiguous. b. Equality: In some cases, it is important that the regions designed are "equal" in terms of a particular variable (for example population, size, presence of infrastructures, etc). In this thesis dissertation, the term "area" will be used to denote the smallest territorial unit. The aggregation of areas will form a "region" and the aggregation of regions will cover the whole considered territory. Apart from aspects such as statistical secrets or other legislation on the treatment of statistical data, according to Wise et al. (1997), this kind of territorial units are designed in such a way as to be above minimum population or household thresholds, to reduce the effect of outliers when aggregating data or to reduce possible inaccuracies in the data, and to simplify information requirements for calculations and to facilitate its visualisation and interpretations in maps. See, for example, Albert et al. (2003), who analyse the spatial distribution of economic activity using information with different levels of regional aggregation, NUTS III for Spain and France and NUTS II for other countries, with the objective of "using similar territorial units". López-Bazo et al. (1999) analyse inequalities and regional convergence at the European level in terms of GDP per capita using a database for 143 regions using NUTS II data for Belgium, Denmark, Germany, Greece, Spain, France, Italy, Netherlands and Portugal, and NUTS-I data for the United Kingdom, Ireland and Luxembourg so as to ensure the comparability of geographical units. c. Interaction between areas: Some variables do not exactly define geographical characteristics that can be used to aggregate the different areas, but may describe some kind of interaction between them (for example, distance, time, number or trips between areas, etc). These variables can also be used as interaction variables using a dissimilarity measure between areas in terms of socio-economic characteristics. The objective in this kind of regionalisation process is to make the areas belonging to the same region as homogeneous as possible with regard to the attribute(s) specified. Unfortunately, in most cases, the aggregation of territorial information is usually done using "ad-hoc" criteria, due to the lack of sufficiently flexible regionalisation methods. In fact, most of these methods have been developed to deal with very particular regionalisation problems, so when applied in other contexts the results may be highly restrictive or inappropriate for the problem under consideration. However, whatever territorial aggregation method is applied, there is an implicit risk, known in the literature as the "Modifiable Areal Unit Problem" (Openshaw, 1984): the sensitivity of the results to the aggregation of geographical data and its consequences on the analysis. The main objective in this thesis dissertation is to implement a new automated regionalisation tool to design homogeneous geographical units directly related to the phenomena analysed which overcomes some of the disadvantages of the methodologies currently available. Thus, the specific objectives are: a. To formulate the regionalisation problem as a linear optimisation model able to take into account not only the areal characteristics but also their non-metric and contiguity relationships. b. To propose a heuristic model able to solve bigger regionalisation problems, incorporating in its search procedure the characteristics of a regionalisation process. c. To compare the homogeneity of the analytical regions designed by applying the regionalisation model proposed in this thesis with those obtained using another regionalisation method based on normative criteria. For this comparison, provincial time series of unemployment rates in Spain will be used. This dissertation is organised as follows. Chapter 2 briefly summarises the literature on different regionalisation methods. Special emphasis will be placed on those methodologies which have made the greatest impact on the specialist literature and on those that have been tested satisfactorily in real problems. In chapter 3 the regionalisation problem is formulated as a linear optimisation model in which the problem of obtaining r homogeneous regions is based on the minimisation of the total heterogeneity, measured as the sum of the dissimilarity relationships between areas belonging to the same region. The proposed model has the following characteristics: a. It is an automated regionalisation model that is able to design a given number of homogeneous geographical units from aggregated small areas subject to contiguity requirements. b. The aggregation process takes into account not only the characteristics of each area but also the relationships between them (symmetric and not necessarily metric). c. By formulating the regionalisation problem as a linear optimisation problem, we have the chance of finding the global optimum from among all feasible solutions. d. More consistent solutions can be easily obtained by introducing additional constraints taking into account other specific requirements that are relevant for the regionalisation process. e. There is more freedom than in other methodologies regarding the shapes of the regions, which depend only on data characteristics and are not imposed by the methodology chosen. f. With this model a region consists of two or more contiguous areas; this implies that no region can be formed by a single area. In order to apply this model in larger-scale regionalisation processes, Chapter 4 presents an algorithm called the RASS (Regionalisation Algorithm with Selective Search). The key advantage of this new algorithm is that the way it operates is based on the features of regionalisation processes themselves, where available information about the relationships between areas can play a crucial role in directing the search process more selective, more efficient and less random fashion. In fact, the RASS incorporates inside the linear optimisation model presented in chapter 3 in order to achieve local improvements in the objective function. These improvements can generate significant changes in regional configurations, changes that would be very difficult to obtain using other adapted iterative methods. In Chapter 5 provincial time series of unemployment rates in Spain are used to compare the results obtained by applying two analytical regionalisation models, each one representing a different regionalisation strategy: a two-stage procedure based on cluster analysis and the RASS algorithm. The results will also be compared with normative regions available at two different scales: NUTS II and NUTS I. Lastly, in Chapter 6 we present the most important conclusions and make proposals for further research lines.

Since the 1960s, many formal languages have been developed in order to allow software engineers to specify conceptual models and to design software artifacts. A few of these languages, such as the Unified Modeling Language (UML), have become widely used standards. They employ notations and concepts that are not readily understood by "domain experts," who understand the actual problem domain and are responsible for finding solutions to problems.The Object Management Group (OMG) developed the Semantics of Business Vocabulary and Rules (SBVR) specification as a first step towards providing a language to support the specification of "business vocabularies and rules." The function of SBVR is to capture business concepts and business rules in languages that are close enough to ordinary language, so that business experts can read and write them, and formal enough to capture the intended semantics and present them in a form that is suitable for engineering the automation of the rules.The ultimate goal of business rules approaches is to build software systems directly from vocabularies and rules. One way of reaching this goal, within the context of model-driven architecture (MDA), is to transform SBVR models into UML models. OMG also notes the need for a reverse engineering transformation between UML schemas and SBVR vocabularies and rules in order to validate UML schemas. This thesis proposes an automatic approach to translation between UML schemas and SBVR vocabularies and rules, and vice versa. It consists of the application of a new generic schema translation approach to the particular case of UML and SBVR.The main contribution of the generic approach is the extensive use of object-oriented concepts in the definition of translation mappings, particularly the use of operations (and their refinements) and invariants, both formalized in the Object Constraint Language (OCL). Translation mappings can be used to check that two schemas are translations of each other, and to translate one into the other, in either direction. Translation mappings are declaratively defined by means of preconditions, postconditions and invariants, and they can be implemented in any suitable language. The approach leverages the object-oriented constructs embedded in Meta Object Facility (MOF) metaschemas to achieve the goals of object-oriented software development in the schema translation problem.The generic schema translation approach and its application to UML schemas and SBVR vocabularies and rules is fully implemented in the UML-based Specification Environment (USE) tool and validated by a case study based on the conceptual schema of the Digital Bibliography & Library Project (DBLP) system.

La selección de centros de mecanizado de alta velocidad es un proceso complejo que requiere de mucha experiencia, puesto que en él intervienen un gran número de variables, tanto tecnológicas como económicas. Existen metodologías orientadas a seleccionar el centro de mecanizado óptimo, considerando únicamente una de estas dos tipologías de variables, sin embargo, esta tesis propone una metodología que contempla ambos tipos. Para ello se identifican las variables que tienen mayor influencia sobre los resultados del proceso de mecanizado, tanto desde un punto de vista de calidad de las piezas fabricadas como de la economía de la fabricación, y se propone un modelo de selección basado en los resultados de un trabajo experimental realizado sobre piezas de aluminio. Dicho modelo se implementa mediante redes neurales, cuyo entrenamiento se realiza en base a los resultados del trabajo experimental mencionado.

Th. Univ. de Lausanne, 2006. / En libr.: Lausanne : Editions Bis et Ter. Bibliogr.