The high moral tone of Horace's Reguhls ode makes it unsurprising that the poet should employ the traditional imagery of philosophers, both in the speech of Regulus and in the final simile. I should like here to point out some instances which seem to have escaped the notice of commentators.This passage is intended to illustrate the lost ‘virtus’ of the prisoners in Carthage, who, Regulus claims, will be of no greater use to the Romans if ransomed since they were cowardly (...) enough to surrender in the first place. For the first image of dyeing wool Kiessling–Heinze refer the reader to Lucretius 6.1074–7:purpureusque colos conchyli iungitur unacorpore cum lanae, dirimi qui non queat usquam,non si Neptuni fluctu renovare operam des,non mare si totum velit eluere omnibus undis.This gives the first hint that the image belongs to the philosophical tradition, though it does not seem to occur in the extant remains of Epicurus. This is confirmed by a passage of Plato, who at Rep. 429d ff. has an elaborate image taken from the dyer's art. The Guardians of the ideal city are to be carefully selected and prepared like wool for the dyeing process of education; then, as good wool keeps its colour after dyeing, so the Guardians will keep right opinions when they are taught them. The image is summarized by Socrates at 430a ff. (shrink)

Nineteen obituaries of recently deceased Fellows of the British Academy: W S Allen; George Anderson; A C de la Mare; John Flemming; James Harris; John Hurst; Casimir Lewy; Donald MacDougall; Colin Matthew; Edward Miller; Michio Morishima; Brian Reddaway; Marjorie Reeves; C Martin Robertson; Conrad Russell, and Arnold Taylor.

Albert and De Ruiter provide an introduction to the Conversation Analytic approach to ‘repair’: the ways in which people detect and deal with troubles in speaking, hearing and understanding in conversation. They explain the basic turn‐taking structures involved, provide examples, explain recent developments in the field and highlight some important points of contact and contrast with work in the Cognitive Sciences.

In identifying intrinsic molecular chance and extrinsic adaptive pressures as the only causally relevant factors in the process of evolution, the theoretical perspective of the Modern Synthesis had a major impact on the perceived tenability of an ontology of dispositional properties. However, since the late 1970s, an increasing number of evolutionary biologists have challenged the descriptive and explanatory adequacy of this “chance alone, extrinsic only” understanding of evolutionary change. Because morphological studies of homology, convergence, and teratology have revealed a space (...) of possible forms and phylogenetic trajectories that is considerably more restricted than expected, evo-devo has focused on the causal contribution of intrinsic developmental processes to the course of evolution. Evo-devo’s investigation into the developmental structure of the modality of morphology – including both the possibility and impossibility of organismal form – has led to the utilisation of a number of dispositional concepts that emphasise the tendency of the evolutionary process to change along certain routes. In this sense, and in contrast to the perspective of the Modern Synthesis, evo-devo can be described as a “science of dispositions.” This chapter discusses the recent philosophical literature on dispositional properties in evo-devo, exploring debates about both the metaphysical and epistemological aspects of the central dispositional concepts utilised in contemporary evo-devo and addressing the epistemological question of how dispositional properties challenge existing explanatory models in evolutionary biology. (shrink)

After having defined the KARO logic for specifying intelligent agents in earlier work we now turn to the question how to realise agents specified in the KARO framework. To this end we look at agent programming languages that we have defined, and investigate how programs in these languages can be linked to the KARO logic.

BackgroundGenome-wide association studies (GWAS) provide a powerful means of identifying genetic variants that play a role in common diseases. Such studies present important ethical challenges. An increasing number of GWAS is taking place in lower income countries and there is a pressing need to identify the particular ethical challenges arising in such contexts. In this paper, we draw upon the experiences of the MalariaGEN Consortium to identify specific ethical issues raised by such research in Africa, Asia and Oceania.DiscussionWe explore ethical (...) issues in three key areas: protecting the interests of research participants, regulation of international collaborative genomics research and protecting the interests of scientists in low income countries. With regard to participants, important challenges are raised about community consultation and consent. Genomics research raises ethical and governance issues about sample export and ownership, about the use of archived samples and about the complexity of reviewing such large international projects. In the context of protecting the interests of researchers in low income countries, we discuss aspects of data sharing and capacity building that need to be considered for sustainable and mutually beneficial collaborations.SummaryMany ethical issues are raised when genomics research is conducted on populations that are characterised by lower average income and literacy levels, such as the populations included in MalariaGEN. It is important that such issues are appropriately addressed in such research. Our experience suggests that the ethical issues in genomics research can best be identified, analysed and addressed where ethics is embedded in the design and implementation of such research projects. (shrink)

Hypocretin regulates brain reward function and cocaine consumption in rats. The hypocretinergic (Hcrt) system is implicated in energy homeostasis, feeding and sleep regulation. Hypocretinergic cell bodies are located in the lateral hypothalamus (LH) and project throughout the brain. The aim of the present studies was to investigate the role of the Hcrt system in regulating brain reward function and the reinforcing properties of cocaine in rats. Intracranial self-stimulation (ICSS) thresholds provide an accurate measure of brain reward function in rats. Here (...) we show that a single injection of Hcrt-1 (5 µg icv) induced persistent, long-lasting elevations in ICSS thresholds in drug-naïve rats. Indeed, Hrct-1 elevated ICSS thresholds for 36 h, with peak elevations between 6 and 12 hours after injection. Hrct-1-induced threshold elevations were attenuated by an antibody known to neutralize the binding of hcrt-1 to its receptors. Taken together, these observations suggest that Hrct-1 negatively regulates brain reward function in rats. Because Hrct-1 negatively regulates brain reward function, we hypothesized that it may attenuate the increased brain reward function usually observed after cocaine consumption, and thereby alter cocaine self-administration behavior. A daily injection of Hrct-1 (1 µg icv), for 4 consecutive days, slightly increased cocaine self-administration (0.25 mg/infusion) in rats. Overall, these data demonstrate that Hrct-1 negatively regulates brain reward function, and as such may indirectly alter cocaine self-administration. Given the well-established role of hypocretin neurons in regulating feeding behavior and sleep, we hypothesize that hypocretinergic regulation of brain reward function may provide a mechanism by which appropriate and competing behaviors (e.g. sleep or feeding) may be engaged to maintain energy homeostasis. (shrink)

Cette contribution témoigne de l’importance de la réception de la phénoménologie de langue française en Amérique Latine. En revisitant la thèse de la duplicité de l’apparaître – apparaître de la vie comme affect et comme force, apparaître du monde comme sens et distance –, Roberto J. Walton s’attache au concept fondamental de la phénoménologie de la vie, en mettant en avant des modalités dans lesquelles l’auto-affection opère sans hétéro-affection d’une manière avérée. Il précise d’emblée que cette auto-affection sans hétéro-affection est (...) définie par deux aspects : un premier « aspect de base » – ou rapport de fondation – en vertu duquel l’auto-affection est la condition de possibilité de toute intentionnalité ou ek-stase ; et un deuxième aspect « d’intensification ou d’excédence » qui renvoie à la phénoménologie de l’événement, en ceci que l’auto-affection y apparaît dans une sorte de plus-value, c’est-à-dire dans la condition de l’acte comme accroissement créateur. (shrink)