The aim of this thesis is to investigate the problems that use of idealizations in science leads to. Idealizations are simplifications and therefore false descriptions of how actual objects behave. Presence of idealizations in scientific theories is the reason for the problems in our understanding of confirmation of theories and also of scientific explanations. Nevertheless, idealizations are ubiquitous especially in natural sciences. Scientists have to employ idealizations because of the complexity of the real world and our limited capacity of computation. The roots of the methodology of modern science are in Cartesian philosophy. I propose that Descartes also employed idealizations in his theory of motion in the universe. Idealized worlds can be regarded as simplifications of the real world. Scientific theories are literally false but they are true in the possible worlds which are similar to the real world. Models provide the connections between idealized laws and the real world. Construction of models of the actual world is based upon idealizations which are indispensable in the theoretical sciences. Theories can be indirectly confirmed by models denoting different aspects of the phenomena.

This paper examines online fan fiction communities as spaces for identity formation, collaborative creativity, and fan empowerment. Drawing on case studies of a LiveJournal fan fiction community, fan-written essays, possible world theory, and postmodern theories of the hyperreal and simulacrum, this paper argues that writing fan fiction is a definitive, postmodern act that explores the mutable boundaries of reality and fiction. It concludes that fans are no longer passive consumers of popular media—rather, they are engaged, powerful participants in the creation of celebrity representation that can, ultimately, alter reality.

The main goal of this PhD dissertation is to explore the relation between postmodern poetics and some features of other theories developed at the same time in various areas of knowledge – mainly metaphysics, physics and sociology. If we can say that the modern paradigm was born with the question of how a multiplicity of different points of view could coexist, the postmodern paradigm seems to arise with the awareness that a systematic legitimation of differences cannot be based on a sole foundation that leads to a complete inclusion. For this reason, we argue that the concept of possible world is not only a useful heuristic metaphor adopted in different areas of the artistic and scientific postmodern culture, but it can put in constructive conversation different areas of knowledge which are usually thought to be more isolated and refractory to mutual influence than they actually are. Precisely because of the diverse usages and meanings that the term ‘world’ acquires in different contexts, the ontological commitment toward possible worlds varies significantly. They can be godly concepts, fictional scenarios, real sums of individuals that are isolated from each other, or ideal set of objects that are associated with different and mutually exclusive frames of reference and cultural coordinates. To shed a light on these matters is the main goal of the first book, entitled "What is a possible world?". The second book, entitled "Entangled worlds: the postmodernist literature", is committed to explore the topology of the possible worlds projected by postmodernist texts; in fact, the paradoxical topology that emerges from these texts appears to be inherently connected with a vast range of issues concerning our world.

The main focus of this study concerns the contribution of focalisation to the creation of fictional worlds through the combination of the “building blocks” of a fictional world, namely the central focalising and focalised character(s), focalised social contexts, events and spaces, in Hermann Hesse’s Demian (1919), Narziß und Goldmund (1930), E.L. Doctorow’s Welcome to Hard Times (1960) and Homer & Langley (2009). The relationship between the focalisers and their social contexts influence their human, subjective perspectives and represented perceptions of their textual actual worlds. Focalisation is constructive in the synergistic relationship between the “building blocks” that leads to the creation of fictional worlds. Chapter 2 discusses the theoretical basis of the thesis which is formed by the concepts of M. Ryan, L. Doležel, R. Ronen and T.G. Pavel with regard to possible worlds and fictional worlds. G. Genette’s and M. Bal’s theories provide the foundation of this study with regard to this concept as regards focalisation. Chapter 3 contextualises focalisation and fictional worlds as possible worlds in Hesse’s and Doctorow’s fiction and as such constitutes part of a twofold basis for the following analyses and comparisons. Four textual analyses of the individual novels by Hesse and Doctorow then follow. In the textual analysis of Demian the notions of M. Bal, M. Ryan and A. Nünning provide a theoretical basis that is specifically relevant for the argument that through his consciousness the individual, Emil Sinclair, creates the fictional world, i.e. by “transforming” textual actual world components into individualised fictional world ones. The views of Viktor Frankl, feminist activists against prostitution such as M. Farley, M.A. Baldwin and C.A. MacKinnon as well as the views of Talcott Parsons (in conjunction with those of G.M. Platt and N.J. Smelser) offer a theoretical underpinning for the analysis of the social context as the product of the mindset in the community in Doctorow’s Welcome to Hard Times and the mindset of the focaliser, Blue, that concurs with the mindset of the community. Focalised events are considered as psychologically credible and as contributing to the fictional world in Hesse’s Narziß und Goldmund. In this textual analysis the theoretical points of departure were based on theories proposed by D. Cohn, M. Ryan and S. Chatman. Concepts advanced by J. Lothe, J. Lotman, H. Lefebvre, L. Doležel, N. Wolterstorff and D. Coste comprise the theoretical basis of the analysis of social spaces in Doctorow’s Homer & Langley. Chapter 8 consists of comparative analyses of the said focalised “building blocks” of Hesse’s and Doctorow’s novels. The analyses and comparisons argue that focalising characters “filter” their actual worlds and “transform” them through their individualistic and subjective representations, as actual people do. Even if characters are “non-actual individuals” their mindsets or physical, social and mental properties (Margolin, 1989:4) are like those of actual people, i.e. “psychologically credible”. Ryan (1991:45) identifies “psychological credibility” or “a plausible portrayal of human psychology” as an “accessibility relation”, i.e. one that allows the mental properties of a fictional character to be accessible from and possible for the actual world. The interaction between a focalising character and his social context that affects his consciousness and focalisation is comparable to the interaction between a hypothetical actual person and his social world, that would also influence his mindset and how he communicates about the actual world. Perspectives of characters such as Sinclair, Blue, Goldmund and Homer Collyer are recognisable to hypothetical actual world readers as psychologically credible. In the light of Bal’s (1990:9) argument that the whole text content is related to the (focalising) character(s), one could say that the elements of a textual actual world become, as it were, focalised “building blocks” of the fictional world. The central finding is that focalisation contributes to the creation of fictional worlds. The relationship between a fictional world and the actual one becomes apparent in literary texts through focalisation that transforms the textual actual world and its elements, i.e. the central (self-focalising) character, the social context, events and space(s), through a focaliser’s consciousness. The focaliser’s consciousness in Hesse’s and Doctorow’s fiction is marked by psychological credibility. A fictional world is comparable to the actual world with regard to other accessibility relations that Ryan (cf. 1991:31-47) identifies, but focalisation specifically allows a fictional world to become possible in actual world terms by creating credibility of this kind. A fictional world is plausible not in mimetic terms, as a factual text presents itself to be, but in possible terms, i.e. through the comparability of human psychology in fictional worlds and the actual world. Focalisation significantly contributes to the creation of a fictional world through the interaction between psychologically credible subjectivity and the imaginary level of the text on which the textual actual world obtains human value through focalisation. A fictional world is, in this sense, a possible world and, in fact, comes about through being a possible world. / Thesis (Ph.D. (Applied Language and Literary Studies))--North-West University, Potchefstroom Campus, 2011.

The main focus of this study concerns the contribution of focalisation to the creation of fictional worlds through the combination of the “building blocks” of a fictional world, namely the central focalising and focalised character(s), focalised social contexts, events and spaces, in Hermann Hesse’s Demian (1919), Narziß und Goldmund (1930), E.L. Doctorow’s Welcome to Hard Times (1960) and Homer & Langley (2009). The relationship between the focalisers and their social contexts influence their human, subjective perspectives and represented perceptions of their textual actual worlds. Focalisation is constructive in the synergistic relationship between the “building blocks” that leads to the creation of fictional worlds. Chapter 2 discusses the theoretical basis of the thesis which is formed by the concepts of M. Ryan, L. Doležel, R. Ronen and T.G. Pavel with regard to possible worlds and fictional worlds. G. Genette’s and M. Bal’s theories provide the foundation of this study with regard to this concept as regards focalisation. Chapter 3 contextualises focalisation and fictional worlds as possible worlds in Hesse’s and Doctorow’s fiction and as such constitutes part of a twofold basis for the following analyses and comparisons. Four textual analyses of the individual novels by Hesse and Doctorow then follow. In the textual analysis of Demian the notions of M. Bal, M. Ryan and A. Nünning provide a theoretical basis that is specifically relevant for the argument that through his consciousness the individual, Emil Sinclair, creates the fictional world, i.e. by “transforming” textual actual world components into individualised fictional world ones. The views of Viktor Frankl, feminist activists against prostitution such as M. Farley, M.A. Baldwin and C.A. MacKinnon as well as the views of Talcott Parsons (in conjunction with those of G.M. Platt and N.J. Smelser) offer a theoretical underpinning for the analysis of the social context as the product of the mindset in the community in Doctorow’s Welcome to Hard Times and the mindset of the focaliser, Blue, that concurs with the mindset of the community. Focalised events are considered as psychologically credible and as contributing to the fictional world in Hesse’s Narziß und Goldmund. In this textual analysis the theoretical points of departure were based on theories proposed by D. Cohn, M. Ryan and S. Chatman. Concepts advanced by J. Lothe, J. Lotman, H. Lefebvre, L. Doležel, N. Wolterstorff and D. Coste comprise the theoretical basis of the analysis of social spaces in Doctorow’s Homer & Langley. Chapter 8 consists of comparative analyses of the said focalised “building blocks” of Hesse’s and Doctorow’s novels. The analyses and comparisons argue that focalising characters “filter” their actual worlds and “transform” them through their individualistic and subjective representations, as actual people do. Even if characters are “non-actual individuals” their mindsets or physical, social and mental properties (Margolin, 1989:4) are like those of actual people, i.e. “psychologically credible”. Ryan (1991:45) identifies “psychological credibility” or “a plausible portrayal of human psychology” as an “accessibility relation”, i.e. one that allows the mental properties of a fictional character to be accessible from and possible for the actual world. The interaction between a focalising character and his social context that affects his consciousness and focalisation is comparable to the interaction between a hypothetical actual person and his social world, that would also influence his mindset and how he communicates about the actual world. Perspectives of characters such as Sinclair, Blue, Goldmund and Homer Collyer are recognisable to hypothetical actual world readers as psychologically credible. In the light of Bal’s (1990:9) argument that the whole text content is related to the (focalising) character(s), one could say that the elements of a textual actual world become, as it were, focalised “building blocks” of the fictional world. The central finding is that focalisation contributes to the creation of fictional worlds. The relationship between a fictional world and the actual one becomes apparent in literary texts through focalisation that transforms the textual actual world and its elements, i.e. the central (self-focalising) character, the social context, events and space(s), through a focaliser’s consciousness. The focaliser’s consciousness in Hesse’s and Doctorow’s fiction is marked by psychological credibility. A fictional world is comparable to the actual world with regard to other accessibility relations that Ryan (cf. 1991:31-47) identifies, but focalisation specifically allows a fictional world to become possible in actual world terms by creating credibility of this kind. A fictional world is plausible not in mimetic terms, as a factual text presents itself to be, but in possible terms, i.e. through the comparability of human psychology in fictional worlds and the actual world. Focalisation significantly contributes to the creation of a fictional world through the interaction between psychologically credible subjectivity and the imaginary level of the text on which the textual actual world obtains human value through focalisation. A fictional world is, in this sense, a possible world and, in fact, comes about through being a possible world. / Thesis (Ph.D. (Applied Language and Literary Studies))--North-West University, Potchefstroom Campus, 2011.

The thesis "The justification of eternity in times" addresses the relationship of the entity whose existence is modally necessary to the times of the entities of contingent existence, whose existence is defined by creation and termination, i.e., by the two poles of existence. The solution of this relationship is the answer to Panneberg's question about the relationship of eternity to the space-time structure of the universe. The approach to solving this problem is analyzed in the introductory chapter. Entities of contingent existence - beings - can be considered from the point of view of existence as polar entities, while the modally necessary one, which neither comes into existence nor ceases to exist, spans in its existence the poles of existence of all beings - it is therefore supra-polar in this sense. Time is needed to express the impermanence of the existence of beings. The fact that entities of contingent existence must exist in time raises the question of the relation of the modally necessary entity to time. The formal-logical expression of the relation of modally necessary entities to the times of modally contingent entities is discussed in second chapter. Sufficient conditions are given here for such an existence of a modally necessary entity which can be said to be of unbounded duration...

Современная аналитическая философия может применять семантику возможных миров для анализа философских проблем. В диссертации определяется онтологический базис для семантики возможных миров так, чтобы она была в полной мере применима к анализу проблем философия сознания, включая проблему тождества сознания и тела. Проводится анализ объектного и релятивного способов определения онтологии для семантики возможных миров для объектов и функций, при этом рассматривается возможность определения объектного способа как частного случая релятивного. Отношение достижимости в качестве способа задания «релятивных» переходов между возможными мирами является ключевым для релятивного подхода к онтологии семантики возможных миров. В диссертации сформулирована логическая система на основе допущения неполного сопоставления индивидных областей для отношения достижимости. / Modern analytic philosophy can apply the possible-worlds semantics for the analysis of philosophical problems. The dissertation determines ontological basis for the possible-worlds semantics, so that it is fully applicable to the analysis of problems of the philosophy of consciousness, including the issue of the identity of consciousness and body. The analysis of relational and object methods for determining the ontology of possible-worlds semantics for objects and functions takes place, while the possibility consideres of determining the object method as a special case of relative method. The attitude of the reachability as a means of model of «relative» transitions between the possible worlds is the key to relational approach to the ontology of possible-worlds semantics. The dissertation formulates the logical system based on the assumption of incomplete comparison individual areas for the attitude of the reachability.