Freivalds defined an acceptable programming system independent criterion for learning programs for functions in which the final programs were required to be both correct and "nearly" minimal size, i.e., within a computable function of being purely minimal size. Kinber showed that this parsimony requirement on final programs limits learning power. However, in scientific inference, parsimony is considered highly desirable. A lim-computablefunction is (by definition) one calculable by a total procedure allowed to change its mind finitely many times about its output. (...) Investigated is the possibility of assuaging somewhat the limitation on learning power resulting from requiring parsimonious final programs by use of criteria which require the final, correct programs to be "not-so-nearly" minimal size, e.g., to be within a lim-computable function of actual minimal size. It is shown that some parsimony in the final program is thereby retained, yet learning power strictly increases. Considered, then, are lim-computable functions as above but for which notations for constructive ordinals are used to bound the number of mind changes allowed regarding the output. This is a variant of an idea introduced by Freivalds and Smith. For this ordinal notation complexity bounded version of lim-computability, the power of the resultant learning criteria form finely graded, infinitely ramifying, infinite hierarchies intermediate between the computable and the lim-computable cases. Some of these hierarchies, for the natural notations determining them, are shown to be optimally tight. (shrink)

This qualitative study explored and described South African students’ experiences and perceptions regarding academic success. Focus group participants related academic success not only to achieveme...

Architecture and urbanism seem to be »weak« disciplines, constantly struggling for a better understanding of their nature and disciplinary borders. The huge amount of metaphors appearing in the discourse of both not only reference to their creative nature but also indicate their weakness and the missing piece strengthening their own understanding: a definition of space for architecture and of city for urbanism. But using metaphors in this field implies a problem - though metaphors achieve to bring opposites together, there remains (...) the question how literal they can actually become in order to relate to these subjects properly. In this volume, several authors from various fields using different approaches discuss this question. (shrink)

From the viral social media feeds showing Chief Justice Mogoeng Mogoeng in fervent prayer for the nation, to professed Christian Thuli Madonsela’s careful expression of the separation between religion and state, faith identity in the public sphere emerges as anything but a straightforward matter. By placing ‘Christian’ in parenthesis, the 2019 theme of the Theological Society of South Africa conference acknowledged that leaders operate in negotiated spaces and confirmed the complexity of the context in which we attempt to conceptualise leadership (...) from a theological perspective. This raises the question of the role that personal faith convictions play and may be allowed to play in public life. While conceptualising leadership from a faith perspective in a context that is at once secular and post-secular may be complex, evidence emerging from leadership studies of the importance of spirituality in leadership necessitates such a reflection. This article considers the problem from a theological point of view, drawing on Schleiermacher and Bonhoeffer’s later letters from prison to provide a theological foundation for a public spirituality of leadership. (shrink)

This article presents hospitality as a pivotal value in the context of increasing diversity that characterises the complex relations in which leadership emerges. After reviewing the concept of Otherness in philosophy, the notion of hospitality as developed by Richard Kearney in relation to his philosophy of religion is introduced. The case of Nobel Peace Prize Laureate Chief Albert Luthuli is then presented as a biographical leadership study from the African context to illustrate how hospitality as open response to radical Otherness (...) may inspire collaboration and foster positive change. The article then addresses ways in which the notions of hospitality and Otherness present new opportunities to leadership studies for responding to the relational challenges of the globalised world. Amidst an increased scholarly focus on relationality and the need for relational intelligence, globalisation routinely confronts leaders and their followers with radical Otherness. Through dialogue between theology, philosophy of religion and leadership studies and by presenting a case from the African context, the article offers in print what is called for in the global context, namely an open response to the alterity of the Other that enables collaboration amidst increasing diversity. CONTRIBUTION: Proceeding from a transdisciplinary engagement, the article illustrates that leadership studies stood to benefit from dialogue with theology and philosophy of religion, which offers ways of addressing the Otherness that characterise the globalised context of leadership. (shrink)

Pharmakologisches „cognition enhancement“ zielt auf die Verbesserung der geistigen Leistungsfähigkeit mithilfe von Präparaten, die primär als Medikamente eingesetzt werden. Der Beitrag befasst sich mit der ethischen Bewertung des Gebrauchs von Stimulanzien als „enhancer“ durch Kinder und Jugendliche. Am Beispiel von Diagnose und Behandlung der Aufmerksamkeitsdefizit-Hyperaktivitätsstörung (ADHS) werden die Schwierigkeiten der Abgrenzung von Therapie und Enhancement beschrieben und daraus auf verschiedenen Ebenen ethisch relevante Fragen bezüglich Cognition enhancement entwickelt. Diese betreffen z. B. die Wirkungen von Stimulanzien auf ein sich entwickelndes System (...) und eine mögliche grundlegende Änderung der Erziehungs- und Sozialisationssituation durch pharmakologisches Enhancement, aber auch das Problem der Normierung von Verhalten und der Einschränkung der Autonomie der Betroffenen. Die vorgestellten Überlegungen geben Anlass, Cognition enhancement durch Stimulanzien im Jugendbereich vorläufig kritisch zu beurteilen. (shrink)

This article gives a survey of results of research concerning effects of public policy in the Netherlands. This survey is preceded by a summary of some important American projects.The Dutch research reported concerns effects of educational and housing policy on income distribution, effects of sururbanization policy, participation policy, and still other policies.In both countries the dominant conclusion is that the goals of public policy are at least partially realized by the means chosen. However, the conclusion that the welf are state (...) is totally f ailing would go to f ar.Research concerning effects of public policy is still rare. Moreover, it is clear that some goals are realized at least in part by the chosen means.When public policy appears not to be effective, this can be explained from several factors : the contents of policy and the underlying theory, the policy process, the society, the research, and a view which is toonarrow because it takes only short term effects of one particular policy program into account. (shrink)

The history of the phrase absolute music has been studied by many theorists of music and music historians, while historians of philosophy proved to be rather reluctant to such syncretic concept. However, absolute music is exactly the case of non-philosophical appropriation of a philosophical category, which fits theoretical framework of the studies in intellectual history. Initial exploration on the synthesis of history of philosophy and musicology and music history has shown that the conceptual field of intellectual history enables the transition (...) from abstract ideas to concrete social history of thought. It is proved that "absolute music" is not an authentic concept of music culture of the nineteenth century, but rather a good invention of new musical hermeneutics, which defined a period in the development of music and paradigm of concepts that characterized autonomy of musical form. The subject of historical and philosophical studies of the phrase "absolute music" lies in transformation of a philosophical term into a unit of aesthetic discourse, and later its reincarnation in the concept of musical historiosophy. Both philosophical and musicological approaches to the history of absolute music are based on the assumption that only theoretically relevant assertions and judgments appeal to the hermeneutic reconstruction and generalization, whereas political and social references of the discourse of absolute music can be left aside. So futher research shall focus on possibilities of how to reach the concrete social background of that form of thinking which employs the idiom absolute music. (shrink)

This paper discusses Freud's model of the psychical apparatus in the “Project”, and concludes that it is a remarkably sophisticated work which even today is still highly relevant to neuropsychological theorising. Freud rejects the notion that what happens in the brain can be clearly localised in space and time. This anticipates the notion of a distributed system found in recent developments in computing (“neural net works”) and in Derrida's conception of systems characterised by différance. Every part of such a system (...) is constituted by its relation to the rest of the system. Although such systems are spatio-temporal, processes occur ring in them can not be pinpointed in space and time. Against the common charge that Freud has a passive hydraulic-reflex model of the psychical apparatus, the authors argue that Freud presents it as an open, complex, self-organising system. Ricoeur's (1972) claim that the model of the psychical apparatus in the “Project” is essentially solipsistic, is accordingly rejected. In conclusion the authors explain why they prefer the model in the “Project” to the more linear model found in Ch. VII of the Traumdeutung. S. Afr. J. Philos. Vol.20(3) 2001: 1- 21. (shrink)

Straipsnio tikslas – ištirti Latvijos filosofijos istoriografijos tendencijas per pastaruosius tris dešimtmečius. Autoriaus dėmesio centre dvi pagrindinės filosofijos istorijos rašymo prieigos – idėjų istorija ir intelektinė istorija. Iširus Sovietų Sąjungai Latvijos kultūriniame diskurse išpopuliarėjo terminas „idėjų istorija“. Filosofijos istorikai ėmėsi nušviesti glaudžius ryšius tarp Vakarų šalių ir Latvijos kultūrų. Tačiau pastarąjį dešimtmetį Latvijos filosofijos istorikai vis labiau renkasi intelektinės istorijos prieigą.

This is a review article of Ross (2005), a book which attempts to show the implications of cognitive science and economics for each other. Ross makes neoclassical economics central to the unification of the behavioural sciences, and defends its fundamental health against its critics. He locates the source of the empirical and conceptual problems besetting neoclassical economics in the mistaken assumption that the economic agents neoclassicism talks about refer directly to real, whole people. Ross argues that people are atypical as (...) economic agents; bugs and other non-social animals are much more typical, and neoclassical economics applies to them in a straightforward way. How then does economics apply to the atypical agents that people are? Ross’s answer builds on Ainslie (2001), who models people as being the result of strategic interactions between successive economic agents, and on Glimcher’s (2003) work on the neuroeconomics of game playing in monkeys which, Ross argues, can be extrapolated to humans. The author is impressed by the boldness of Ross’s vision, and the arguments offered to support it. However, doubts remain about Ross’s theory of the self, the lifespan of the proposed successive economic agents out of which real people are composed, the implicit suggestion that in economics approximations can be overcome, and finally the conclusiveness of Ross’s case against the need for revolutionary reappraisals of neoclassical economics. (shrink)

This paper gives a sketch for a reconstruction of the Freudian unconscious, and an argument for its existence. The strategy followed attempts to side-step the extended debates about the validity of Freud's methods and conclusions, by basing itself on the desire/belief schema for understanding and explaining human behaviour – a schema neither folk psychology nor scientific psychology can do without. People are argued to have, as ideal types, two fundamental modes of fulfilling their desires: engaging with reality, and wishful thinking. (...) The first mode tries to acknowledge the constraints reality imposes on the satisfaction of desires, while the second mode tries to ignore, deny or disguise these constraints, inasmuch as they threaten to make such satisfaction impossible or unfeasible. Crucially, wishful thinking can be used so as to ignore or deny any desire that is incompatible with other strong desires. Thus we end up unaware of the existence or nature of some of our desires, of the fact that they are in flu enc ing our thought and be hav iour, and of the process our own mind has used to thwart awareness of them. Once we acknowledge this possibility, we are already seriously entertaining the possibility of the Freudian unconscious, or something fairly close to it. The more aware the subject is that her wishful thinking is just that, the less effective it becomes. Wishful thinking thus requires an unconscious; it is inimical to a clear, complete and unambiguous acknowledgement of its own status. Next, various aspects of my account (and Freud's) that allow a conception of the unconscious in non-Cartesian terms are emphasised: the unconscious is largely constituted by semantic phenomena of a particular type: forms of representation which would conceal their meaning even if the full light of 'attention', Cartesian 'consciousness' or 'introspection' were cast upon them. If wishful thinking is an integral part of mental life, philosophers and others wishing to “educate humanity” will have to proceed differently from what would have been appropriate had rational thought and action been the only available option for satisfying desires. Mankind cannot bear too much reality – T.S. Eliot S. Afr. J. Philos. Vol.22(4) 2003: 361-377. (shrink)

Wrestling and arguing with God: between insider and outsider African perspectives -- Introduction to Richard Kearney's intellectual autobiography: where do you come from, Richard Kearney? -- Where I speak from: a short intellectual autobiography -- Phenomenology in South Africa: an indirect encounter with Richard Kearney -- Transcendence and anatheism -- Response to Richard Kearney's Anatheism: Anatheism and holy folly -- Kearney between poles: is too much lost in the middle? -- Strangers, Gods and Africa: in dialogue with Richard Kearney on (...) Otherness -- Approaching the threshold: hospitality as a pedagogical wager in the work of Richard Kearney -- God-talk, the biblical prophets and Richard Kearney -- 'Strange' theology: engaging with Richard Kearney -- Trinitarian theology and Richard Kearney's anatheism: an engagement -- After God but behind the Cross: the procession as a way to re-encounter God in a culture beyond classical liturgy -- Touch gives rise to thought: Paul Ricoeur and Pumla Gobodo-Madikizela on mutual recognition and carnal hermeneutics -- Towards hospitality between enemies -- Across oceans: a conversation on otherness, hospitality and welcoming a strange God. (shrink)

The ego-focus of pioneer women on the South African frontier, 1760–1860, reflects distinct traits of mystical spirituality. The pioneer spirituality of women on the borders increasinglycame to expression in ego-texts with experiential inclinations. The leaning towards Jesuscentredmystical spirituality developed parallel to pietistic tendencies in Holland and Germany,and allegorical and tropological applications of the bridal metaphors in the Song of Songsformed a distinct element of female pietism on the frontier. Women believers in the interiorfavoured tropological applications of bridal metaphors in the (...) Song of Songs. The popularity ofsuch tropological applications can firstly be attributed to the physical conditions under whichpioneer women found themselves. Secondly, the availability of German pietistic workscontributed towards the religious culture of mystical and individualistic readings of bridalmetaphors in the Song of Songs. Tropological readings of the Song of Songs’ bridal metaphorsare traced to the theology of Bernard of Clairvaux particularly and other pre-reformationalmystical sources. (shrink)

This commentary addresses three points. First, it is argued that the common coding principles, as developed in the target article, may supplement rather than replace stage views of human information processing. Second, the issue of the properties of an event code is briefly discussed. It is concluded that much remains to be specified so as to allow critical tests. Finally, the question of the limits of common coding is raised. It may be particularly relevant to direct perception and action coupling (...) but less useful for the analysis of cognitive skills. (shrink)

The Netherdutch Reformed Church of Africa (NRCA) did not escape this existential crisis of conflict. It manifests in various ways resulting in the bleeding of congregations, the exodus of congregants and the closure of congregations, as many congregants that declare themselves as members of the Church do not attend worship services or participate in the Holy Communion and exit the church. The study was conducted in the NRCA to determine the effect and response formation of observed conflict by ministers in (...) their respective congregations. The results of the study indicate that pastors and/or ministers do suffer emotional trauma because of the conflict in the congregation which, according to their own statements results in a loss of role performance. We provide an overview of the problem statement and methodology of the study. We discuss an abbreviated, theoretical perspective on conflict as a social phenomenon. We present the findings of our study and conclude with an abbreviated process to equip pastors with the necessary emotional maturity and self-management.Contribution: This study uncovers emotional trauma experienced by ministers, affecting their role performance. We offer a succinct problem statement, research methodology, and propose a scientifically informed process to enhance ministers’ emotional resilience within the NRCA. (shrink)

Church and theology heading towards the third millennium: Thoughts on the contextualization of dialectical theology within a plural society This article elaborates on a previous one [HTS 51/1, 13-38] in which it was argued that postmodern theology, seen from a specific angle, might be regarded as a contextualization of dialectical thinking. The intention of this article is to focus on an illumination of the road that the author is convinced ought to be taken by the church and in theology, heading (...) towards the third millennium — specifically against the background of the changing South African context. The following issues are given cursory attention: mythography and the importance of metaphors, the social political dimension of believing, ecumenism, interfaith dialogue, and postconfessionalism. (shrink)