A Souslin algebra is a complete Boolean algebra whose main features are ruled by a tight combination of an antichain condition with an infinite distributive law. The present article divides into two parts. In the first part a representation theory for the complete and atomless subalgebras of Souslin algebras is established (building on ideas of Jech and Jensen). With this we obtain some basic results on the possible types of subalgebras and their interrelation. The second part begins with a review (...) of some generalizations of results from descriptive set theory concerning Baire category which are then used in non-trivial Souslin tree constructions that yield Souslin algebras with a remarkable subalgebra structure. In particular, we use this method to prove that under the diamond principle there is a bi-embeddable though not isomorphic pair of homogeneous Souslin algebras. (shrink)

Assuming Jensen's principle ◊+ we construct Souslin algebras all of whose maximal chains are pairwise isomorphic as total orders, thereby answering questions of Koppelberg and Todorčević.

Despite the fact that management programmes provided by African universities are based on Western ontology, there exists a philosophy of management that is uniquely African. It is necessary to discover, understand and nurture this philosophy in order to explain why African managers behave in the ways they do. The African philosophy of management is premised on African traditional cultures, which have a strong influence on the organisational culture of African organisations. For example, despite many Africans undertaking university degrees based on (...) Western ontology at home and overseas, they inadvertently revert to African management philosophy in their organisations. Consequently, the African philosophy of management significantly affects how African managers manage African organisations. The location of the author’s research for this paper is the neighbouring East African nations of Kenya and Tanzania. Although the limitation of the research to these two countries means that the research findings cannot be generalised to other African economies, it may nevertheless point to possible patterns of African management philosophy to be found in other economies of sub-Saharan Africa. Arguably, African management philosophy plays a key role at different levels in African organisations, with both positive and negative consequences. This paper explores such a role and its consequences. It also examines its implications for socio-economic development and social advancement for African peoples. It is widely accepted, for example, that African institutionsand organisations are very corrupt. Africans do not have a monopoly on corruption, but a question of interest for this paper is whether the African philosophy of management contributes to corruption in the two countries on which this paper focuses, and what inferences may be drawn for other economies in sub-Saharan Africa. This paper includes both conceptual and field research in its exploration of the African philosophy of management. It is premised on the view that, while the Western world may not recognise or even think about an African philosophy of management, such a philosophy does exist. The effective management of African private and public organisations is not possible, if the African philosophy of management is not understood and accommodated in the management of African organisations. An understanding is critical for socio-economic development and social advancement, especially for Africans in Kenya and Tanzania, and also for the rest of sub-Saharan Africa. (shrink)

Amsterdam University Press is a leading publisher of academic books, journals and textbooks in the Humanities and Social Sciences. Our aim is to make current research available to scholars, students, innovators, and the general public. AUP stands for scholarly excellence, global presence, and engagement with the international academic community.

This paper critically examines the metaphorical use of medical terms in philosophy. Three examples selected from distinct philosophical contexts demonstrate that such terms have been employed as metaphors both to describe the practice of philosophising and historically to diagnose philosophical positions. The selected examples are (i) the title of Avicenna’s main philosophical work, The Book of Healing, (ii) the criticism of medical metaphors in Enlightenment philosophy, and (iii) recent historical diagnoses in philosophy. The underlying epistemological assumptions of all three contexts (...) are reconstructed to critically analyse the medical metaphors. Through this tripartite synopsis, I arrive at a normative conclusions medical metaphors, such as the “healing of the soul” or “pathology of reason”, do not stand up to the critique of Enlightenment and are obsolete against the theoretical background of my reference texts. (shrink)

ZusammenfassungDie Geschichte der genetischen Pränataldiagnostik ist bislang als Teil der Geschichte der Humangenetik und deren Neuorientierung als klinisch-laborwissenschaftliche Disziplin in der zweiten Hälfte des 20. Jahrhunderts betrachtet worden. Anhand neuen Quellenmaterials soll in diesem Beitrag gezeigt werden, dass das Interesse an der Pränataldiagnostik in Westdeutschland auch im Kontext von Forschungen entstand, die sich mit Gefahren für den Menschen in der Umwelt befassten. Anhand der Debatten um die Einrichtung des DFG-Schwerpunktprogramms „Pränatale Diagnostik genetischer Defekte“ 1970 untersuchen wir, wie die Technik der (...) Amniozentese in Westdeutschland von einer interdisziplinären Forschungsgruppe eingeführt wurde, die sich mit Schädigungen des Organismus durch Strahlen, Arzneimittel und andere Gebrauchsstoffe und Konsumgüter befasste. In einer als ökologische Wende bezeichneten Zeit wachsenden Umweltbewusstseins, so unsere These, sollte durch die Förderung der Pränataldiagnostik eine wahrgenommene Lücke in der Prävention umweltbedingt auftretender genetischer Anomalien geschlossen werden. Für die Pränataldiagnostik als „Schutzmaßnahme“ sprach unter anderem ihre erwartete Finanzierung als Krankenkassenleistung im Zuge der Reform des Abtreibungsrechts. Erst in einem zweiten Schritt führten Veränderungen von Strukturen der Forschung, vor allem aber Erfahrungen in der gynäkologischen Praxis zu einer Neuausrichtung auf die Diagnostik und Prävention mehrheitlich erblicher oder spontan auftretender Anomalien. Die Pränataldiagnostik, so wie sie schließlich in Westdeutschland ab den frühen 1980er Jahren routinemäßig Einsatz fand, hatte mit Fragen der „Umwelt“ kaum noch zu tun. Diese Fallstudie zur Frühgeschichte der genetischen Pränataldiagnostik handelt von dem noch wenig untersuchten Verhältnis von humangenetischer Forschung, klinischer Praxis und Umweltforschung und hat zum weiteren Ziel, den bisher in anderen Kontexten beschriebenen Wandel von Perspektiven in der Vorsorge um 1970 zu beleuchten. (shrink)

Begründet und entfaltet wird ein Begriff des Spiels, der sich um Lockungen und Drohungen des Unerwarteten dreht. Das Autorenduo ordnet seine Theorie der ludischen Aktion in klassische Konzepte des Spiels ein sowie in den aktuellen Diskurs der Game Studies. Die phänomenale Mannigfaltigkeit des Spiels wird in historischer Perspektive skizziert und in systematischer Weise gegliedert. Die Autoren erläutern medientechnische und kommunikative Voraussetzungen des Booms der Computerspiele und reflektieren die Diskussion über Eskalationen ludischer Gewalt. Kritisch ausgeleuchtet werden Instrumentalisierungen des Spiels, die sich (...) unter dem Stichwort Gamification wachsender Beliebtheit erfreuen. Die auffällige Inflation der Spielmetapher wird in Zusammenhang gebracht mit ludischen Anmutungen in den sozialen Strukturen der modernen und digitalen Gesellschaft. Fabian Arlt, M. A., hat Medienmanagement studiert und promoviert im Studiengang Gesellschafts- und Wirtschaftskommunikation der Universität der Künste (UdK) in Berlin. Prof. Dr. Hans-Jürgen Arlt ist Sozialwissenschaftler und Publizist, er lehrt am Institut für Theorie und Praxis der Kommunikation der Universität der Künste (UdK) in Berlin. (shrink)

This article considers Theodor W. Adorno’s thesis of the ‘liquidation of the individual’ as a contribution to the critique of political economy insofar as it links structural economic imperatives o...

This book collects published and unpublished work over the last dozen years by one of today's most distinguished and provocative anthropologists. Johannes Fabian is widely known outside of his discipline because his work so often overcomes traditional scholarly boundaries to bring fresh insight to central topics in philosophy, history, and cultural studies. The first part of the book addresses questions of current critical concern. The second part extends the work of critique into the past by examining the beginning of (...) modern ethnography in the exploration of Central Africa during the late nineteenth century: the justification of a scientific attitude and the collecting of ethnographic objects. A final essay examines how the Congolese have returned the 'imperial gaze' of Belgium by the work of critical memory in popular history. The ten chapters are framed by two meditations on the relevance of theory and the irrelevance of the millennium. (shrink)

Please send me an email (fabian[email protected]) if you wish to receive a copy of the book. — 'In this highly ambitious, wide ranging, immensely impressive and ground-breaking work Fabian Dorsch surveys just about every account of the imagination that has ever been proposed. He identifies five central types of imagining that any unifying theory must accommodate and sets himself the task of determining whether any theory of what imagining consists in covers these five paradigms. Focussing on what he (...) takes to be the three main theories, and giving them each equal consideration, he faults the first two and embraces the third, which argues that imagining is a special form of mental agency. The scholarship is immaculate, the writing crystal clear and the argumentation always powerful.' (Malcolm Budd). (shrink)

In many critical investigations of machine vision, the focus lies almost exclusively on dataset bias and on fixing datasets by introducing more and more diverse sets of images. We propose that machine vision systems are inherently biased not only because they rely on biased datasets but also because theirperceptual topology, their specific way of representing the visual world, gives rise to a new class of bias that we callperceptual bias. Concretely, we define perceptual topology as the set of those inductive (...) biases in machine vision systems that determine its capability to represent the visual world. Perceptual bias, then, describes the difference between the assumed “ways of seeing” of a machine vision system, our reasonable expectations regarding its way of representing the visual world, and its actual perceptual topology. We show how perceptual bias affects the interpretability of machine vision systems in particular, by means of a close reading of a visualization technique called “feature visualization”. We conclude that dataset bias and perceptual bias both need to be considered in the critical analysis of machine vision systems and propose to understand critical machine vision as an important transdisciplinary challenge, situated at the interface of computer science and visual studies/Bildwissenschaft. (shrink)

In this paper, I describe and discuss two mental phenomena which are somewhat neglected in the philosophy of mind: focused daydreaming and mind-wandering. My aim is to show that their natures are rather distinct, despite the fact that we tend to classify both as instances of daydreaming. The first difference between the two, I argue, is that, while focused daydreaming is an instance of imaginative mental agency, mind-wandering is not—though this does not mean that mind-wandering cannot involve mental agency at (...) all. This personal-level difference in agency and purposiveness has, furthermore, the consequence that instances of mind-wandering do not constitute unified and self-contained segments of the stream of consciousness—in stark contrast to focused daydreams. Besides, the two kinds of mental phenomena differ in whether they possess a narrative structure, and in how we may make sense of the succession of mental episodes involved. (shrink)

Teamwork has been argued to play an increasingly important role in numerous jobs, and several studies focused on the effects of team composition for work-related outcomes. Recent research has also identified individuals’ character strengths and positive team roles as conducive to work-related outcomes. However, there is a scarcity of research on the role of character strengths or positive team roles on the level of teams. In the present study, we extend theoretical assumptions of team role theories to the study of (...) character strengths and positive team roles: We examined the associations between character strengths and team roles with work-related outcomes on the individual and the team level. Further, we examined how the team composition relates to the outcomes, that is, whether balanced teams go along with desired outcomes and whether an overrepresentation of team roles or character strengths in a team goes along with undesired outcomes. We studied a sample of 42 teams who completed measures of team roles, character strengths, teamwork quality, job satisfaction, and self-rated individual and team performance. Further, supervisor ratings of individual and team performance were collected. Results corroborated the relationships of team roles and character strengths with individual outcomes such as that specific roles and character strengths go along with individual performance and work satisfaction. Further, the results suggested that teams in which more team roles are represented report higher performance and teamwork quality. Also, teams with higher average levels of the character strengths of teamwork and fairness, and teams with more members scoring high in fairness and prudence report higher teamwork quality. Further, there is no evidence that having too many members with a particular character strength has detrimental effects on teamwork quality, work satisfaction, or performance. We conclude that extending the study of character to the level of teams offers an important advancement. (shrink)

This book offers an original account of a distinctly republican theory of social and global justice. The book starts by exploring the nature and value of Hegelian recognition theory. It shows the importance of that theory for grounding a normative account of free and autonomous agency. It is this normative account of free agency which provides the groundwork for a republican conception of social and global justice, based on the core-ideas of freedom as non-domination and autonomy as non-alienation. As the (...) author argues, republicans should endorse a sufficientarian account of social justice, which focuses on the nature of social relationships and their effects on people's ability to act freely and realize their fundamental interests. On the global level, the book argues for the cosmopolitan extension of the republican principles of non-domination and non-alienation within a multi-level democratic system. In so doing, the book addresses a major gap in the existing literature, presenting an original theory of justice, which combines Hegelian recognition theory and republican ideas of freedom, and applying this hybrid theory to the global domain. Fabian Schuppert creates a grand synthesis uniting neo-republican insights on freedom with Hegelian recognition theory. The result is an account of agency that arises from the idea of non-domination whose aim it is to safeguard individual freedom. When combined with Hegelian recognition theory a social focus also emerges. This amalgam comments on many of the major disputes concerning global justice from a cosmopolitan perspective. Because of the broad scope and the many contemporary discussions engaged this book will be of keen interest to scholars as well as a welcome addition to the classroom. (shrink)

The article comments on the view of authors Johannes Fabian and Emmanuel Levinas on the Africanist research and social praxis in Africa. Fabian determined his ideas within anthropology, while Levinas used philosophy and ethics. The author emphasized that their reflections articulate the need for a dialogical approach in Africanist scholarship. He argued that coevalness is not enough to redress the effects of colonial and postcolonial objectification of human existence in the country.

According to Karen Neander’s causal-informational teleosemantics, the contents of perceptual states depend on the etiological response functions of sensory-perceptual systems. In this paper, I argue that this theory is, despite its virtues, unable to explain how humans and other animals are capable of perceiving properties with which no sensory-perceptual system has ever been confronted. After rejecting Neander’s own proposal in terms of second-order similarity and a proposal inspired by Ruth Millikan in terms of simplicity, I offer a solution which equates (...) functions with manifestations of dispositions that made a difference to evolutionary success. My suggestion is able to generate determinate and plausible contents for new perceptual states while still preserving the idea that etiological functions explain evolutionary success. (shrink)

A growing body of evidence in cognitive psychology and neuroscience suggests a deep interconnection between sensory-motor and language systems in the brain. Based on recent neurophysiological findings on the anatomo-functional organization of the fronto-parietal network, we present a computational model showing that language processing may have reused or co-developed organizing principles, functionality, and learning mechanisms typical of premotor circuit. The proposed model combines principles of Hebbian topological self-organization and prediction learning. Trained on sequences of either motor or linguistic units, the (...) network develops independent neuronal chains, formed by dedicated nodes encoding only context-specific stimuli. Moreover, neurons responding to the same stimulus or class of stimuli tend to cluster together to form topologically connected areas similar to those observed in the brain cortex. Simulations support a unitary explanatory framework reconciling neurophysiological motor data with established behavioral evidence on lexical acquisition, access, and recall. (shrink)

The goal of the 2010 Ontology Summit was to address the current shortage of persons with ontology expertise by developing a strategy for the education of ontologists. To achieve this goal we studied how ontologists are currently trained, the requirements identified by organizations that hire ontologists, and developments that might impact the training of ontologists in the future. We developed recommendations for the body of knowledge that should be taught and the skills that should be developed by future ontologists; these (...) recommendations are intended as guidelines for institutions and organizations that may consider establishing a program for training ontologists. Further, we recommend a number of specific actions for the community to pursue. (shrink)

The hitherto neglected Pandechion epistemonicon, Ulisse Aldrovandi’s extant manuscript encyclopaedia, indicates that Renaissance naturalists did not necessarily apply the humanist jack-of-all-trades, the commonplace book, in their own field without considerably altering its form. Over many years the Italian natural historian tested and recombined different techniques to arrive at the form of paper technology that he considered to be the most fit for his purposes. Not all of these techniques were taught at school or university. Rather, Aldrovandi drew on administrative practices (...) as well as on the bookkeeping practices of early modern merchants that he knew first-hand. Reconstructing the formation and use of the Pandechion this article contributes to the historiography of learned reading and information management in Renaissance Europe. (shrink)

A REALIDADE DAS SERRAS CENTRAIS POTIGUARES E A QUESTÃO DO DESENVOLVIMENTO REGIONAL SOB A PERSPECTIVA DO DIREITO, DESENVOLVIMENTO E SUSTENTABILIDADE.

One of the tasks of ontology in information science is to support the classification of entities according to their kinds and qualities. We hold that to realize this task as far as entities such as material objects are concerned we need to distinguish four kinds of entities: substance particulars, quality particulars, substance universals, and quality universals. These form, so to speak, an ontological square. We present a formal theory of classification based on this idea, including both a semantics for the (...) theory and a provably sound axiomatization. (shrink)

La tercera propuesta para definir qué es la epistēmē, que se encuentra al final del Teeteto platónico, fue clásicamente insumida en el elenco de los pioneros de la tesis según la cual el conocimiento debe entenderse como creencia verdadera justificada. Sin embargo, la situación filosófica de este diálogo es más compleja. Me propongo examinar aquí la manera en que Platón presenta a través de la doctrina del sueño –una teoría que exhibe manifiestas similitudes con el atomismo lógico– una discusión acerca (...) de distintas alternativas relativas a la justificación, como estrategia interpretativa para ponderar de qué manera pueden resultar las ideas piezas indispensables de la epistēmē. Creo que ello nos conduce tanto a reexaminar seriamente la teoría del conocimiento y la metafísica tradicionalmente adscrita a Platón, a partir de conceptos como los de parte y todo, como también a valorar mejor la posición platónica acerca de cuestiones epistemológicas y semánticas. (shrink)

The problem of algorithmic fairness is typically framed as the problem of finding a unique formal criterion that guarantees that a given algorithmic decision-making procedure is morally permissible. In this paper, I argue that this is conceptually misguided and that we should replace the problem with two sub-problems. If we examine how most state-of-the-art machine learning systems work, we notice that there are two distinct stages in the decision-making process. First, a prediction of a relevant property is made. Secondly, a (...) decision is taken based (at least partly) on this prediction. These two stages have different aims: the prediction is aimed at accuracy, while the decision is aimed at allocating a given good in a way that maximizes some context-relative utility measure. Correspondingly, two different fairness issues can arise. First, predictions could be biased in discriminatory ways. This means that the predictions contain systematic errors for a specific group of individuals. Secondly, the system’s decisions could result in an allocation of goods that is in tension with the principles of distributive justice. These two fairness issues are distinct problems that require different types of solutions. I here provide a formal framework to address both issues and argue that this way of conceptualizing them resolves some of the paradoxes present in the discussion of algorithmic fairness. (shrink)

By framing Aristotle’s dialectic in the broader context of scientific inquiry and demonstration, this paper is aimed at showing of what use the “reputable opinions” can be for grasping the principles of sciences, as declared in Topics I.2. It argues that such a use cannot imply ‒ at any stage of inquiry ‒ a replacement of the logic and intrinsic goals of demonstration by those proper to dialectic. However, it also defends a substantive (but still modest) contribution of dialectic ‒ (...) beyond its well-attested methodological role in discarding contradictory opinions and its (possible though not germane to the context of Topics I.2) application to proving the principle of non-contradiction by means of refutation. This contribution consists in providing the preliminary accounts of facts in order to have scientific inquiry started, as required in Posterior Analytics II.8. To better appreciate how the proposed location of dialectic in a pre-demonstrative stage of inquiry is operational, the paper finally examines Physics IV.1-5. (shrink)

The uncertainty associated with paradigmatic families has been shown to correlate with their phonetic characteristics in speech, suggesting that representations of complex sublexical relations between words are part of speaker knowledge. To better understand this, recent studies have used two-layer neural network models to examine the way paradigmatic uncertainty emerges in learning. However, to date this work has largely ignored the way choices about the representation of inflectional and grammatical functions in models strongly influence what they subsequently learn. To explore (...) the consequences of this, we investigate how representations of IFS in the input-output structures of learning models affect the capacity of uncertainty estimates derived from them to account for phonetic variability in speech. Specifically, we examine whether IFS are best represented as outputs to neural networks or as inputs by building models that embody both choices and examining their capacity to account for uncertainty effects in the formant trajectories of word final [ɐ], which in German discriminates around sixty different IFS. Overall, we find that formants are enhanced as the uncertainty associated with IFS decreases. This result dovetails with a growing number of studies of morphological and inflectional families that have shown that enhancement is associated with lower uncertainty in context. Importantly, we also find that in models where IFS serve as inputs—as our theoretical analysis suggests they ought to—its uncertainty measures provide better fits to the empirical variance observed in [ɐ] formants than models where IFS serve as outputs. This supports our suggestion that IFS serve as cognitive cues during speech production, and should be treated as such in modeling. It is also consistent with the idea that when IFS serve as inputs to a learning network. This maintains the distinction between those parts of the network that represent message and those that represent signal. We conclude by describing how maintaining a “signal-message-uncertainty distinction” can allow us to reconcile a range of apparently contradictory findings about the relationship between articulation and uncertainty in context. (shrink)

The imagination poses fascinating philosophical questions across a range of subjects including philosophy of mind, aesthetics and epistemology. However, until now it has been a relatively neglected topic. How do acts of imagining differ from other mental episodes, such as perceptions or judgements? What kind of awareness is involved in imagining? Can imagining ground knowledge and if so, how reliable is it? Is there some unity to the various forms of imagining? In this book Fabian Dorsch considers these questions, (...) introducing and assessing all the main issues and arguments concerning imagination, including: episodic imagining imagining objects propositional imagining imagination and epistemology imagination and aesthetics imagination and cognitive science the unity of imagining. Including chapter summaries, annotated further reading and a glossary, _Imagination_ is an ideal starting point for anyone studying the philosophy of imagination for the first time as well as more advanced students and researchers in philosophy, psychology and related disciplines. (shrink)

This book explores the morality of compromising. The author argues that peace and public justification are values that provide moral reasons to make compromises in politics, including compromises that establish unjust laws or institutions. He explains how it is possible to have moral reasons to agree to moral compromises and he debates our moral duties and obligations in making such compromises. The book also contains discussions of the sources of the value of public justification, the relation between peace and justice, (...) the nature of modus vivendi arrangements and the connections between compromise, liberal institutions and legitimacy. In exploring the morality of compromising, the book thus provides some outlines for a map of political morality beyond justice. (shrink)