A simple model of an exciton-phonon system is studied in connection with quantum chaos.

The practice of ‘Philosophical Counselling’ (henceforth ‘PC’) is growing. But what exactly is PC? The variety of attempts to define PC can be summarised in terms of three overlapping sets of opposites: practical versus theoretical definitions; monistic versus pluralistic definitions; and substantive versus antinomous definitions. ‘Practical’ definitions of PC include descriptive accounts of its actual practice. ‘Theoretical’ definitions exclude such accounts. ‘Monistic definitions’ refers to definitions of PC that define it in terms of the work of one specific philosopher or (...) approach in philosophy. ‘Pluralistic’ definitions draw on the work of a variety of philosophers or approaches. ‘Substantive’ definitions are definitions that purport to say what PC is, while ‘antinomous’ definitions of PC say what it is not . My aim is not to define PC definitively. The aim of this article is rather to: (i) provide an overview of the wide variety of efforts to define PC; and, (ii) briefly suggest a preliminary understanding of PC that seems to cover most of the other definitions thereof. For David Fourie (1946-2013). (shrink)

This article was motivated by the need to academically frame and share the response of the North-West University to the perceived increase of academic dishonesty during Covid-19. Within the ambit of the online teaching and learning approach that became dominant during the Covid-19 pandemic, the NWU established a Community of Practice for Academic Integrity to enhance Academic Integrity in a holistic manner. By critically discussing the NWU’s response through their CoPAI, the lessons learned, and strategies developed in the process, the (...) NWU can hopefully assist other Higher Education institutes to progressively enhance AI in the future. This is important, because many contextual shifts in teaching and learning approaches, pedagogy, assessment, and the application of technology, that were enforced in an online mode of delivery during the pandemic, will prevail in future.In writing this article, we focused on contextualising the NWU CoPAI within current literature on community of practice and Academic integrity and emphasising the unique strategy and holistic nature of this CoPAI. The establishment of the CoPAI is discussed within the appreciative inquiry as methodological framework. This methodology is commonly used by CoPs, but it is particularly relevant to the CoPAI since CoPAI sought answers to all the AI questions that presented itself due to disruptions in the higher education landscape. The appreciative inquiry method allowed for the opportunity to find some answers in a holistic manner. Some of these answers or insights gained through the activities of CoPAI is further discussed in the latter part of the article. In conclusion, some of the outcomes and shortcomings of CoPAI at the NWU are highlighted.The main finding of this article concluded that the establishment of a CoPAI can enhance AI at HE institutions in a holistic manner. The applicability, relevance, and success of this CoPAI was realised through its holistic approach which included the valorisation of institutional aspects, the engagement and empowerment of lecturers, and the engagement and empowerment of students. This novel and unique approach to promote AI in HE could fill the existing knowledge gap in the South African context, where the establishment of a CoPAI, the application of appreciative inquiry as methodology, and the inclusion of a holistic approach are still absent. It might however also be an example for other HE institutions to follow globally. (shrink)

In this paper the current legislative landscape and the challenges researchers face in obtaining informed consent in acute situations are explored. In such situations, some current guidelines can be difficult or impossible to apply. Capacity should be formally assessed before consent is sought to ensure that vulnerable persons are neither inappropriately recruited to a study nor denied the opportunity to participate. However, there is little guidance in current legislation as to how this should be achieved. When the patient is considered (...) to be unable to provide prospective informed consent, other forms are sometimes permissible, although all have specific drawbacks. First, it is argued that a brief instrument, suitable for the acute situation, is needed to determine whether patients have the capacity to consent to clinical trials. Secondly, it is argued that there are areas of the informed consent process that require review, and ways that improvements could be made are suggested. (shrink)

The 1992 Convention on Biological Diversity (CBD) and its 2010 Nagoya Protocol brought about a breakthrough in global policy making. They combined a concern for the environment with a commitment to resolving longstanding human injustices regarding access to, and use of biological resources. In particular, the traditional knowledge of indigenous communities was no longer going to be exploited without fair benefit sharing. Yet, for 25 years after the adoption of the CBD, there were no major benefit sharing agreements that led (...) to significant funding streams for indigenous communities. This changed with the signing of the Rooibos Benefit Sharing Agreement in South Africa, described in this paper. As the authors report, the Rooibos Agreement is a superlative in two respects. It is the biggest benefit sharing agreement between industry and indigenous peoples to date. It is also the first industry-wide agreement to be formed in accordance with biodiversity legislation. This article is a co-production between traditional knowledge holders, the lawyer who represented their interests, the Co-Chair of the Nagoya Protocol negotiations, and an ethicist who analyzed the major challenges of this historic agreement. With no precedent in the benefit sharing world, the agreement stands as a concrete example of the ‘art of the possible.’ Although the rooibos case is unique in a number of aspects, the experience offers many transferable insights, including: patience; incrementalism; honesty; trust; genuine dialogue; strong legal support; a shared recognition that a fair, win-win deal is possible; government leadership; and unity amongst indigenous peoples. Such ingredients of success can apply well beyond southern Africa. (shrink)

Postcolonialism and decolonising campaigns are expressions of human pain on the level of identity confusion (inferiority), ideological abuse (cultural discrimination) and structural oppression (imperialistic exploitation). The slogan ‘Black Pain is a White Commodity’ in the #MustFall campaigns is critically analysed within the framework of postcolonial theory and imperialistic power categories. The basic hypothesis of the article is that in early Christianity, pantokrator images of God were influenced by iconography stemming mostly from the Roman Emperor cult and Egyptian mythology. The power (...) (omnipotence) and dominiumship of God directly and indirectly played a role in Christian imperialistic thinking regarding the expansion of the Kingdom of God and missio Dei strategies during times of European and colonial expansionism. In order to address the quest for ‘moving beyond’ in postcolonial theory, the impact of pantokrator-images of God on ecclesial thinking is researched. In order to contribute to sustainability and stability within the complexity of cultural diversity and current civil unrest on campuses in South Africa, the paracletic notion of compassionate being-with is developed within the framework of practical theological thinking. Instead of a Caesar-depiction, the theological notion of passio Dei is proposed: the decolonialising (post-imperialising) God. (shrink)

Pastoral care must recover its unique identity as a theological discipline. In addressing the reality of evil, pastoral care reinterprets divine power as compassionate and creative empowerment, the basis for hopeful activity.

In emergency research, obtaining informed consent can be problematic. Research to develop and improve treatments for patients admitted to hospital with life-threatening and debilitating conditions is much needed yet the issue of research without consent (RWC) raises concerns about unethical practices and the loss of individual autonomy. Consistent with the policy and practice turn towards greater patient and public involvement in health care decisions, in the US, Canada and EU, guidelines and legislation implemented to protect patients and facilitate acute research (...) with adults who are unable to give consent have been developed with little involvement of the lay public. This paper reviews research examining public opinion regarding RWC for research in emergency situations, and whether the rules and regulations permitting research of this kind are in accordance with the views of those who ultimately may be the most affected. (shrink)

The pastoral ministry of caregiving inevitably implies a cost. The spiritual ethos in the Christian ministry implies a huge sacrifice. Dietrich Bonhoeffer described this ethos as ‘the cost of discipleship’. Very specifically in the case of unexpected and the so-called ‘undeserved modes of suffering’, the meaning framework of the caregiver is being interpenetrated, causing a kind of ‘depleted sense of being’. It is argued here that an appropriate diagnosis, and a description of the phenomenon of compassion fatigue, can help caregivers (...) to better understand their sense of being depleted. Instead of leaving the pastoral ministry, this can help them to attend anew to their spiritual capacity. In this regard, a theology of compassion, framed by theopaschitic theology, can help pastors to become ‘healed’ in order to re-enter the pastoral ministry and regain a sense of parrhēsia. (shrink)

In our exposure to weakness, vulnerability, loss, anguish and different forms of impairment, the following pastoral theological questions arises: What is meant by divine almightiness within the human need for spiritual strength, empowerment, encouragement and well-being? The epithet of almightiness (omnipotence, pantokratōr) gave birth to fictitious and speculative associations, even fear and anxiety: The paralyzing fear of God Almighty – divine intoxicating and spiritual pathology. Instead of a pantokratōr-definition of God, a paraklēsis-infinition of God is proposed. This paradigm shift is (...) based on the hermeneutical insight, namely, that the El Shadday of Yahweh is based on the respect in Jewish hermeneutics to render God not as a personified substance, but as an ‘operating verb’ – hjh. In the verbing of God, El Shadday points to encouragement, empowerment and a kind of pity and comfort based on the passio Dei. Contribution: How one perceives the power of God, determines the practice of Christian devotion and spirituality. Therefore, the emphasis on the notion of ‘God Almighty’ (omnipotence of God) and its link to the notion of the ‘weakness of God’ as exposed in the basic outline for a theology of the cross and as a source for hope in pastoral care and compassionate reaching out. (shrink)

Granting the idea that certain theoretical conceptualisations of Marxism broadly represent a political religion, this paper seeks to explore how one can come to understand the function of individual theoretical concepts within the wider theory of Stalinism. In so doing, this approach to political religion will be explored within the confines of Stalin’s concept of the Intensification of Class Struggle under Socialism. Assuming that individual theoretical concepts of an ideology that has been labelled a political religion serve the same function (...) as doctrines within traditional religion, this paper argues that the Intensification of Class Struggle under Socialism can be interpreted as having an apocalyptic quality. By doing so, this paper seeks to extend the boundaries of both the study of political religion and the theoretical exploration of Marxism as it relates to the question and role of religion within the social and political sphere. While doing so, this paper also seeks to provide an illustration of what the exploration of political religion in relation to Marxism looks like at the level of specific theoretical elements as opposed to a mere overarching characterisation of the entire theoretical enterprise. (shrink)

The classical definition of theology is 'faith-seeking understanding'. The focus is on the understanding/interpretation of the object of Christian faith: God. There is another root for the quest for understanding, namely the praxis situation of faith. People live in particular historical contexts that have their own distinctive problems and possibilities; thus, the focus on place and space in a theology of home. A praxis approach is to learn life and the gospel from below, thus the emphasis on a grassroots ecclesiology (...) that is structured like an oikos, a familial dwelling place. This understanding of the dynamics of the fellowship of believers as oikodomein is captured by the Zulu notion for the yearning for home : Ekhaya. It is argued that Ekhaya thinking is an alternative route for an operative ecclesiology that caters for the need of marginalised, oppressed, displaced and homeless people. Practical theology is thus described as fides quaerens domum et locum [faith-seeking home and place], namely to inhabit. An Ekhaya approach to practical theological ecclesiology is about critical reflection through the eyes of those who are weak and who don't count for much by the standards of successful people and institutions. (shrink)

In the past fifteen years, there has been a virtual explosion of anthropological literature arguing that morality should be considered central to human practice. Out of this explosion new and invigorating conversations have emerged between anthropologists and philosophers. Moral Engines: Exploring the Ethical Drives in Human Life includes essays from some of the foremost voices in the anthropology of morality, offering unique interdisciplinary conversations between anthropologists and philosophers about the moral engines of ethical life, addressing the question: What propels humans (...) to act in light of ethical ideals? (shrink)

Since independence, at least 28 African countries have legalized some form of gambling. Yet a range of informal gambling activities have also flourished, often provoking widespread public concern about the negative social and economic impact of unregulated gambling on poor communities. This article addresses an illegal South African numbers game called fahfee. Drawing on interviews with players, operators, and regulatory officials, this article explores two aspects of this game. First, it explores the lives of both players and runners, as well (...) as the clandestine world of the Chinese operators who control the game. Second, the article examines the subjective motivations and aspirations of players, and asks why they continue to play, despite the fact that their aggregate losses easily outstrip their aggregate gains. In contrast with those who reduce its appeal simply to the pursuit of wealth, I conclude that, for the (mostly) black, elderly, working class women who play fahfee several times a week, the associated trade-off—regular, small losses, versus the social enjoyment of playing and the prospect of occasional but realistic windfalls—takes on a whole new meaning, and preferences for relatively lumpy rather than steady consumption streams help explain the continued attraction of fahfee. This reinforces the need to understand players’ own accounts of gambling utility rather than simply to moralistically condemn gambling or to dismiss gamblers behaviour as irrational. (shrink)

Dementia is an illness that raises important questions about our own attitudes to illness and aging. It also raises very important issues beyond the bounds of dementia to do with how we think of ourselves as people--fundamental questions about personal identity. Is the person with dementia the same person he or she was before? Is the individual with dementia a person at all? In a striking way, dementia seems to threaten the very existence of the self.LThis book brings together philosophers (...) and practitioners to explore the conceptual issues that arise in connection with this increasingly common illness. Drawing on a variety of philosophers such as Descartes, Lock, Hume, Wittgenstein, the authors explore the nature of personal identity in dementia. They also show how the lives and selfhood of people with dementia can be enhanced by attention to their psychological and spiritual environment. Throughout, the book conveys a strong ethical message, arguing in favor of treating people with dementia with all the dignity they deserve as human beings. The book covers a range of topics, stretching from talk of basic biology to talk of a spiritual understanding of people with dementia. Accessibly written by leading figures in psychiatry and philosophy, the book presents a unique and long overdue examination of an illness that features in so many of our lives. (shrink)

Dementia is an illness that raises important questions about our own attitudes to illness and aging. It also raises very important issues beyond the bounds of dementia to do with how we think of ourselves as people - fundamental questions about personal identity. Is the person with dementia the same person he or she was before? Is the individual with dementia a person at all? In a striking way, dementia seems to threaten the very existence of the self. This book (...) brings together philosophers and practitioners to explore the conceptual issues that arise in connection with this increasingly common illness. Drawing on a variety of philosophers such as Descartes, Locke, Hume, Wittgenstein, the authors explore the nature of personal identity in dementia. They also show how the lives and selfhood of people with dementia can be enhanced by attention to their psychosocial and spiritual environment. Throughout, the book conveys a strong ethical message, arguing in favour of treating people with dementia with all the dignity they deserve as human beings. The book covers a range of topics, stretching from talk of basic biology to talk of a spiritual understanding of people with dementia. Accessibly written by leading figures in psychiatry and philosophy, the book presents a unique and long overdue examination of an illness that features in so many of our lives. (shrink)

Part I: Theoretical considerations from the beginnings to the present day -- Chapter 1: Delexicalisation, relexicalisation and classroom application -- Chapter 2: collocation, interpretation, and context of situation -- Chapter 3: Semantic prosodies, irony, insincerity and literary analysis -- Chapter 4: Data-assisted negotiating -- Chapter 5: The analysis and creation of humour -- Chapter 6: Events in the context of culture, language events, subtext -- PART II: New applications -- Chapter 7: Alexander Pushkin and authorial intention -- Chapter 8: Translating (...) Pushkin: a case in point -- Chapter 11 : Contextualprosodic theory in the stylistics classroom --Chapter 12: Student-centred stylistics: does subtext read text?. (shrink)

The article investigates the hypothesis that preaching implies more than merely verbalising, proclaiming and rhetoric reasoning. Preaching is fundamentally the art of poetic seeing; an aesthetic event on an ontic and spiritual level; that is, it provides vocabulary and images in order to help people to discover meaning in life (preaching as the art of foolishness). In this regard, preaching should provide God-images that open up the dimension of aesthetics and provide vistas of the ‘unseen’. The iconic dimension of preaching (...) is about symbols and metaphors that help people to ‘see’ in everyday life (a poetic gaze) the presence of God in such a way that tragic events, the awareness of death and the anguish about the fear for loss and rejection become events for signifying life and for healing (the quest for wholeness). It is argued that practical theology should be about a liturgy of life. In this regard, the ‘ugliness of God’ becomes an aesthetic category in a Christian spiritual approach to iconography. In order to do this a critical approach to praxis thinking should probe into the realm of paradigms, especially paradigms that describe the ‘power of God’. Due to the assumption that the depiction of God’s power was predominantly influenced by the Serapis, Zeus and Roman cult (Emperor mystique), a paradigm shift from omni-categories (pantokrator) to bowel categories (passio Dei) in the homiletic depiction of God is proposed. (shrink)

A commonly used dynamic epistemic logic is one obtained by adding commonknowledge and public announcements to a basic epistemic logic. It is known from Kooi (2007) that adding public substitutions to such a logic adds expressivity over the class K of models. Here I show that substitutions also add expressivity over the classes KD45, S4 and S5 of models. Since the combination of common knowledge, public announcements and substitutions, was shown in Kooi (2007) to be equally expressive to relativized common (...) knowledge these results also show that relativized common knowledge is more expressive than common knowledge and public announcements over KD45, S4 and S5. These results therefore extend the result from van Benthem et al. (2006) that shows that relativized common knowledge is more expressive than common knowledge and public announcements over K. (shrink)

“Neo-inclusivism” is explained and assessed as an approach to the problem of the conflicting claims to truth of different religions, with reference to inter alia John B. Cobb (Jr.), Gavin D'Costa and Paul Ingram. For the neo-inclusivist the truth of a religious tradition depends on its inclusivistic capacity, i.e. its capacity to assimilate other traditions. For ex ample, by being enriched and transformed through “radical openness” to other traditions, while remaining “committed” to her own tradition – so the neo-inclusivist claims (...) – the theology of the Christian can become “truly global”. Neo-inclusivism seemingly transcends the absolutist habits of inclusivists, i.e. to assess the religious other in view of criteria (the inclusivist's own religious tradition) with which the other does not identify himself or herself. However, the neo-inclusivist plays down the possible limits of inter religious openness and is overly optimistic about the possibility of a “truly global” theology. Moreover, whether the neo-inclusivist's “committed openness” significantly differs from the approach of those who arbitrarily use the definitive norms of their own religious tradition to assess other traditions, is at least debatable. Whatever the case may be, insofar as tolerance cannot tolerate intolerance, the neo-inclusivist is necessarily intolerant, and, in this sense, “absolutist”, towards those who make their own beliefs normative for all and shun themselves from the assessments and new insights of others. S. Afr. J. Philos. Vol.23(1) 2004: 82-107. (shrink)

Do adherents of different religious traditions communicate and, if so, how? What enables them to do so? What is interreligious “communication”? These issues are ad dressed with reference to Wilfred Cantwell Smith's hermeneutical rule, and to inter alia Paul Knitter, Martin Heidegger, Hans-Georg Gadamer, David Tracy, and John Dunne. Four responses to the question as to what permits interreligious communication are criticised. According to a fifth response, on which the author elaborates, interreligious communication is not – as the objectivist claims (...) – possible because members of different religious traditions speak the very same language, or – as the relativist claims – impossible because they speak radically different languages. Adherents of different religions communicate, if at all, by means of an analogical language. This language is the product of persistent efforts to understand the religion/faith of the other as he or she understands it. Paradoxically, the language that permits inter religious communication is thus the product of such communication. Without thereby reverting to objectivism or an essentialist view of religion, the author identifies five “less unstable” similarities between religions. These and other “less un stable” similarities might assist believers in their efforts to under stand the religious other. (shrink)

How may or should adherents of a particular religion assess other religious traditions? Whether they can avoid both absolutism and relativism depends on the availability of “ecumenical criteria”, i.e. a common scale in view of which the adherents of different religious traditions may jointly judge these traditions. It is argued that such a scale may exist even if we assume that the adherents of the different religions do not have any religious beliefs or criteria in common. This scale may exist (...) insofar as believers may share certain meta-religious criteria, e.g. the coherence of beliefs, their existential relevance and efficiency – i.e. their capacity to meet needs and concerns, including ethical-political and scientific concerns – and the impressiveness of beliefs. As such these criteria coincide with conditions that regulate the effective functioning of religions as ultimate frames of reference. However, it is not assumed that these criteria constitute ahistorical foundations. Adherents of the different religious traditions may not agree on the coherence, the existential relevance and efficiency, or the impressiveness of beliefs. Neither will they necessarily agree that these considerations are appropriate. Whether such an agreement exists will only, if at all, become apparent through inter religious dialogue. S. Afr. J. Philos. Vol.23(3) 2004: 302-326. (shrink)

This article examines the relationship between the classical Marxist tradition and the conceptual roots of totalitarianism. Here totalitarianism is understood to entail the attempt to frame the developmental impulses of modernity within the logic of a premodern political imaginary—defined as internally homogenous and transparent to itself. In the first part, we take issue with those who try to distinguish between the thought of Marx and Engels, and who insist that it is only in Engels's thought that the traces of a (...) totalitarian politics might be found. In the second section, we outline briefly the context within which Marx's thought was developed, after which we argue that Marx's vision of communism is dependent on the three-phase vision of historical process which he inherited from Hegel. Without denying the historical peculiarities of the imposition of communism in Russia, we conclude that it is out of this latter vision of history that the conceptual roots of totalitarianism must be located. (shrink)

A good deal of concern is generated when a person with dementia wanders. One putatively easy technological remedy is to consider electronic tagging. This possibility, however, raises a dif erent set of ethical concerns. In this paper we report the results of a survey that was intended to elicit people’s views about the ethical issues surrounding the topic of tagging in dementia. There was broad agreement in response to the scenario used in the survey that electronic tagging could be an (...) ethically reasonable way to deal with wandering in people who are confused. It was seen as considerably better than locking doors as a way to maintain a person’s safety. There were, however, concerns and uncertainties about principles relating to civil liberties, stigma and dignity. And there appeared to be some weight behind the view that electronic tagging of confused people who wander requires professional involvement, the nature of which would need to be decided. population in general. (shrink)

Normative arrow update logic (NAUL) is a logic that combines normative temporal logic (NTL) and arrow update logic (AUL). In NAUL, norms are interpreted as arrow updates on labeled transition systems with a CTL-like logic. We show that the satisfiability problem of NAUL is decidable with a tableau method and it is in EXPSPACE.

This article parallels a debate similar to the one in Canada and elsewhere where researchers whose work involves humans now operate under a single ethics policy, with a strong biomedical emphasis. The institution of research ethics committees for humanities and social sciences in South Africa are relatively recent, posing unique challenges to researchers and academicians. These factors contribute to the complexity of conducting ethically sound research in the humanities and social sciences. The article explores this specific context and how a (...) research ethics committee in the humanities and social sciences can meet the challenge of the unique South African context. (shrink)

We reflect, using a vignette, on conceptual tensions and the value judgements that lie behind difficult decisions about whether or not the older person with dementia should return home or move into long-term care following hospital admission. The paper seeks, first, to expose some of the difficulties arising from the assessment of residence capacity, particularly around the nature of evaluative judgements and conceptual tensions inherent in the legal approach to capacity. Secondly, we consider the assessment of best interests around place (...) of residence, which demonstrates significant conceptual tensions. In addition, ‘best interests’ raise issues around the perception of risk and the perceptions of the family and crucially involve the notions of autonomy and trust. Finally, we not only gesture at some practical considerations based on insights from values-based medicine, but also make the suggestion that we require tighter functional assessments of residence capacity coupled with broader judgements about best interests. (shrink)

The foundational hypothesis to this study is that congregations which have a healthy perception and a greater understanding of conflict will develop more effective responses to conflict that will translate into more effective conflict resolution and reconciliation. The process and sustainability of the development of a missional church, the context of the study, is pregnant with potential conflict. Untamed conflict has the propensity to retard, jeopardise or even destroy the development of a missional church. When conflict arises, it must be (...) understood and dealt with theologically. The inherent problem is that conflict appears to be neither understood nor appreciated sociologically and theologically. This knowledge and praxis vacuum has the potential for conflict to translate into inappropriate or ineffective responses that do not always make for effective resolution and reconciliation. The research focuses mainly on an empirical study based on the four practical theological questions of Osmer (2008). Participants for this study were randomly selected from specific sectors of Methodist congregations in the wider Pretoria area. The research explores congregants’ perceptions, understanding and views of conflict; their responses to conflict; and some felt and observed outcomes of conflict. The presupposition is that the development of the local missional church would be more effective and efficient when the management and process of conflict resolution and reconciliation are well led and well managed. This study confirmed that conflict, despite its normalcy and necessity, carries a negative undertone and is mostly avoided in congregations. This is compounded by the evidence that there is little, if any, theological or scriptural understanding of conflict. There is also no indication that churches intentionally and purposefully educate their members to appreciate and understand conflict. In so doing, churches are harming their innate calling as the glory and manifestation of God’s divine grace through faith communities for the transformation of all peoples. Yet, the church understands the dangers of unhealthy conflict, and on occasion even expects conflict to arise, although deeming it inappropriate. Practical theological discernment is sought as to why this may be so and remedial action is proposed to address the problem of conflict within congregations. (shrink)

Open access. This open-access book discusses vulnerability and the protection-inclusion dilemma of including those who suffer from serious poverty, severe stigma, and structural violence in research. Co-written with representatives from indigenous peoples in South Africa and sex workers in Nairobi, the authors come down firmly on the side of inclusion. In the spirit of leaving no one behind in research, the team experimented with data collection methods that prioritize research participant needs over researcher needs. This involved foregoing the collection of (...) personal data and community researchers being involved in all stages of the research. In the process, the term ‘vulnerability’ was illuminated across significant language barriers as it was defined by indigenous peoples and sex workers themselves. The book describes a potential alternative to exclusion from research that moves away from traditional research methods. By ensuring that the research is led by vulnerable groups for vulnerable groups, it offers an approach that fosters trust and collaboration with benefits for the community researchers, the wider community as well as research academics. Those living in low-income settings, in dire situations that are summarized with the term ‘vulnerability’ know best what their problems are and which priorities they have. To exclude them from research for their own protection is a patronizing approach which insinuates that researchers and research ethics committees know best. The team from this book have shown that minimally risky and minimally burdensome research tailored towards the needs of highly marginalized and stigmatized communities can be scientifically valuable as well as inclusive and equitable. I congratulate them. Prof. Klaus Leisinger, President Global Values Alliance, Former personal advisor to Kofi Annan on corporate responsibility. (shrink)

Stereotypes of ‘coloured’ men from marginalised communities in the Western Cape, South Africa, portray these men as violent, lazy, alcoholics, domestic and substance abusers and absent in the lives of their children. Although extensive research has been conducted on fathers and fatherhood, there is still a lack of positive constructions and representations of fatherhood. In narrative interviews with 11 fathers who reside in the Cape Flats, faith-based values were understood as possible restorative avenues for fathers. This article explores how faith-based (...) values are used to redefine what it means to be a man and father but also to (re)negotiate their identity, role and responsibility as men and fathers. From a narrative thematic analysis, the findings present alternative narratives on ‘coloured’ masculinity and fatherhood that show ‘coloured’ fathers to be present and active in their children’s lives. Contribution: This article employed a descriptive modus operandi on masculinity and fatherhood. It focuses on (re)shaping fathers in South Africa to impede father absenteeism in families and communities. (shrink)

Plants belonging to the genus Salsola (Family: Chenopodiaceae) are common in the arid and semiarid regions of our planet with no less than 69 different Salsola species found in Namibia and the Republic of South Africa. This genus is used as a traditional medicine and aqueous extracts of Salsola have been used by Bushmen women as an oral contraceptive. Ingestion of the Namibian shrub Salsola tuberculatiformis Botsch. by pregnant Karakul sheep leads to prolonged gestation and fetal post‐maturity and, as a (...) result, the pelts of the new‐born karakul lambs are worthless. This initiated an investigation into the active agents in the plant, using the terminal enzyme in adrenal corticosteroidogenesis, cytochrome P450‐dependent 11β‐hydroxylase (P450c11), as a bioassay. Although the active fraction, S2, was extremely labile, partial structure determination suggested the presence of synephrine and a highly reactive aziridine. Therefore a more stable analogue, 2‐(4‐acetoxyphenyl)2‐chloro‐N‐methylethylammonium‐chloride (compound A), was synthesised, which, like the active plant extracts, inhibited adrenal steroidogenesis and acted as a contraceptive. In addition, compound A was stabilised by interaction with steroid‐binding globulins in plasma thus enhancing biological activity in vivo. These findings provided explanations for the complex biological effects of the shrub as well as a new insight into the mode of action of chemically labile plant products in vivo. BioEssays 25:612–619, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

We define balance games, which describe the formation of friendships and enmity in social networks. We show that if the agents give high priority to future profits over short term gains, all Pareto optimal strategies will eventually result in a balanced network. If, on the other hand, agents prioritize short term gains over the long term, every Nash equilibrium eventually results in a network that is stable but that might not be balanced.

In this article, I present a critical literature study of the theoretical approach of practical theologians in South Africa to our discipline, in honour of Yolanda Dreyer on her 60th birthday. Some of my colleagues' approaches at the universities of Stellenbosch, Free State, Pretoria, Unisa and NWU are discussed. All of them work with practical theological hermeneutics. The basic hermeneutic approach of Daniël Louw is widened with an integrated approach by Richard R. Osmer in which practical theology as a (...) hermeneutic discipline also includes the empirical aspect which the action theory approach has contributed to the discussion. After discussing Louw's basic hermeneutic approach, all the other colleagues who basically accepted Osmer's approach in their publications are discussed. Important and new ground is being broken by contemporary colleagues, including research in public practical theology, without neglecting the focus on Christian congregations, and new work is being done at the grass roots level of African issues in our country. (shrink)