This paper describes the design and evaluation of a personality for the robotic user interface “iCat”. An application was developed that helps users find a TV-programme that fits their interests. Two experiments were conducted to investigate what personality users prefer for the robotic TV-assistant, what level of control they prefer, and how personality and the level of control relate to each other. The first experiment demonstrated that it is possible to create convincing personalities of the TV-assistant by applying various social (...) cues. The results of the second experiment showed that an extravert and agreeable TV-assistant was preferred over a more introvert and formal one. Overall, the most preferred combination was an extravert and friendly personality with low user control. Additionally, it was found that perceived level of control was influenced by the robot’s personality. This suggests that the robot’s personality can be used as a means to increase the amount of control that users perceive. (shrink)

It is a commonplace to observe that the idea of natural law has polarised contemporary legal philosophy; jurists who are not for it are against it. More than once in its long history, going back to the very origins of philosophy in Western Europe, the natural law has been in eclipse, but it has invariably survived and, as one of its severest critics, Bergbohm, was forced to admit, the funeral orations pronounced over it have proved to be premature. In the (...) nineteenth century Benthamite utilitarianism, Comtist positivism and the historical jurisprudence of von Savigny made a lean period for the natural law. But the twentieth century saw the revival. In 1910 appeared J. Charmont’s Renaissance du droit nature!; the 1920’s saw the first of Jacques Leclercq’s Lefons de droit nature!; in 1930 Charles Grove Haines studied the natural law in contemporary jurisprudence in The Revival of Natural Law Concepts; and in 1936 appeared the first edition of Heinrich Rommen’s Die ewige Wiederkehr des Naturrechts. The movement towards the natural law, of which these books are only some of the indications, was greatly accelerated when men discovered the need for a defence against the excesses of totalitarian power; and, after the war, the Nuremberg trials proceeded upon what amounted to a basis of natural law. Not all, of course, are prepared to admit that the natural law is the only alternative to positivism and relativism in legal philosophy or even that the concept possesses vitality: the contemporary interest in the natural law, Norberto Bobbio has observed rather sourly, is rather like the interest of anatomists in a cadaver. (shrink)

Este trabajo presenta una propuesta para la investigación y la enseñanza de la parasitología. La Metodología de los Programas de Investigación Científica está basada en la metodología de Imre Lakatos. El “núcleo tenaz” del programa en parasitología es “las características de comportamiento alimenticio de los hospedadores explica y predice la fauna de endoparásitos que ellos albergan “. Las hipótesis auxiliares del cinturón protector son: i) hipótesis de los ciclos biológicos y ii) hipótesis del desarrollo de comunidades de parásitos. Las pre-condiciones (...) iniciales necesarias para el establecimiento de la relación parásitohospedador son: a) existencia del parásito potencial, b) existencia del hospedador potencial y c) existencia del biotopo potencial. Se discute el papel de las anomalías y se sugieren modificaciones al tratamiento hecho por Lakatos. Creemos que las anomalías no deben archivarse y acumularse hasta que la comunidad científica comience a dudar y cuestionar el núcleo tenaz. Es mejor que el científico resuelva cada anomalía a medida que se le van presentando, pudiedo resultar en el futuro en caminos insospechables para el trabajo teórico y empírico, y de esta manera aumentar el poder predictivo y explicativo del programa. En definitiva esto estará aumentando el “contenido experimental” del programa.This paper presents a theoretical methodological proposal for research and teaching in parasitology. The Methodology of Scientific Research Program, , presented here is based on I. Lakatos’ methodology. The “hard core” in parasitology is: the characteristics of the trophic behavior of hosts explain and forecast the parasitic fauna which they harbour. The following hypotheses form the hard core’s safety belt of the auxiliary hypotheses: 1. the hypothesis of the biological cycles; 2. the hypothesis of parasite community development. The necessary initial physical pre-conditions for the establishment of a host-parasite relation are: a.- the existence of a potential parasite; b- the existence of a potential host, and c - the existence of a potential biotope. The role of anomalies in the development of any MSRP is discussed and a modification of Lakatos’ treatment is suggested. We believe that anomalies should not be set aside until they accumulate to the point where the scientific community begins to doubt their basic hard core. It is better for the scientist to resolve each controversial event as soon as it emerges since these events, may, in the future, give rise to unsuspected paths of theoretical and empiricalwork, or even improve and widen the predictive and explicative power of the MSRP itself. This, in brief, would deepen the “experimental content” of the program. (shrink)

Approximately three decades ago the question was first answered whether parasitoids are able to assess the number or origin of eggs in a host for a solitary parasitoid, Leptopilina heterotoma, by fitting theoretically derived distributions to empirical ones. We extend the set of different theoretically postulated distributions of eggs among hosts by combining searching modes and abilities in assessing host quality. In the models, parasitoids search either randomly (Poisson) (1) or by vibrotaxis (Negative Binomial) (2). Parasitoids are: (a) assumed to (...) treat all hosts equally, (b) able to distinguish them in unparasitised and parasitised hosts only, (c) able to distinguish them by the number of eggs they contained, or (d) able to recognise their own eggs. Mathematically tractable combinations of searching mode (1 and 2) and abilities (a,b,c,d) result in seven different models (M1a, M1b, M1c, M1d, M2a, M2b and M2c). These models have been simulated for a varying number of searching parasitoids and various mean numbers of eggs per host. Each resulting distribution is fitted to all theoretical models. The model with the minimum Akaike's information criterion (AIC) is chosen as the best fitting for each simulated distribution. We thus investigate the power of the AIC and for each distribution with a specified mean number of eggs per host we derive a frequency distribution for classification.Firstly, we discuss the simulations of models including random search (M1a, M1b, M1c and M1d). For M1a, M1c and M1d the simulated distributions are correctly classified in at least 70% of all cases. However, in a few cases model M1b is only properly classified for intermediate mean values of eggs per host. The models including vibrotaxis as searching behaviour (M2a, M2b and M2c) cannot be distinguished from those with random search if the mean number of eggs per host is low. Among the models incorporating vibrotaxis the three abilities are detected analogously as in models with random search. (shrink)

From pre-Christian times until the present day, philosophers have discussed whether, given evil, belief in God can logically be maintained. Theists and non-theists remain unconvinced by one another's arguments. This study re-examines the question of God and evil from a neutral standpoint and claims that neither side has come to adequate grips either with the question itself or with the other side's case, chiefly because of failure to distinguish the kinds of problem raised by evil.

Sometimes metaphysicians appeal to simplicity as a reason to prefer one metaphysical theory to another, especially when a philosophical dispute has otherwise reached a state of equilibrium. In this paper, I show that given a Quinean conception of metaphysics, several initially plausible justifications for simplicity as a metaphysical criterion do not succeed. If philosophers wish to preserve simplicity as a metaphysical criterion, therefore, they must radically reconceive the project of metaphysics.

Over the course of an illustrious career, the late Bernard Diamond established himself as the preeminent forensic psychiatrist of the century. _The Psychiatrist in the Courtroom_ brings together in a single volume Diamond's pivotal contributions to a variety of important issues, including the nature of diminished capacity, the fallacy of the impartial expert, the predictability of dangerousness, and the unacceptability of hypnotically facilitated memory in courtroom proceedings. Ably introduced and edited by Jacques M. Quen, M.D., a close colleague of (...) Diamond's and leading historian of forensic psychiatry, these writings enable experts and neophytes alike to track Diamond's evolving positions while clarifying where current legal and psychiatric opinion converge -- and diverge -- on a host of critical topics. For the forensic specialist, _The Psychiatrist in the Courtroom_ is not only an invaluable reference work but a compassionate reminder of the clinician's obligation to protect patients in legal proceedings. And in an age when clinicians are increasingly called into court, the book will be no less valuable to psychoanalysts and other mental health professionals eager for an introduction to the intricacies of judicial reasoning. Then, too, owing to Diamond's clinical acumen, the book is a compelling human document. With great erudition and deep compassion, Diamond tackles these and other knotty questions, always with an eye to clarifying the legal and clinical implications of the answers. By combining superb clinical gifts with an incisive understanding of legal principle, Diamond produced a seminal corpus whose relevance to discussions of therapeutic ethics and to legal debates will continue well into the next century. (shrink)

I argue that Metz's undertaking, in seeking a ‘comprehensive basic norm' to underpin African ethics, is similar to Hans Kelsen's postulation of the Grundnorm in his Pure Theory of Law. But African ethics does not need to be underpinned by an approach such as Kelsen's. In my view, Metz's preference for seeking to develop a Grundnorm rests upon a failure to attend carefully to the distinctness of African ethical thinking from Western ethical thinking. This failure is manifest in a spurious (...) distinction between ‘moral anthropology' / ‘cultural studies' and ‘normative theory'. It is also manifest in Metz's failure to attend carefully to the work of Wiredu and Bujo, both of whom present systematic, critical analyses of African ethical thinking while implicitly rejecting the quest for a Grund norm as being unAfrican. South African Journal of Philosophy Vol. 26 2007: pp. 347-355. (shrink)

The principal objective for most patients seeking orthodontic services is a detectable improvement in their dentofacial appearance. Orthodontic treatment, in the mind of the patient, is something that makes you look better, feel better about yourself, and perhaps enhances your social possibilities, ie, to find a companion or make a positive impression during a job interview. Orthodontics, as a speciality, has collectively advanced the idea that enhanced occlusion (bite) improves the health and longevity of the dentition, and as a result (...) many patients seeking orthodontic services affirm that their secondary goal of treatment is an oral health benefit. It would appear that there is some disparity between the end-user of orthodontic services and the orthodontic provider's perception of what constitutes orthodontic need. The aim of this paper is to examine two contrasting models that characterise how dentists ‘sell’ orthodontic services to patients and to discuss the conflict between professional ethics, practice management and evidence-based decision-making in orthodontic practice. (shrink)

First published in 2003. Routledge is an imprint of Taylor & Francis, an informa company.

v. 1. Half brain fables and figs in paradise -- v. 2. The corpus and the cortex -- v. 3. Scorpions and the anatomy of time.

This two-volume work examines far-reaching debates on the concept of courage from Greek antiquity to the Christian and mediaeval periods, as well as the modern era. Volume 1 explains how competing accounts of epistêmê, rational wisdom, and truth dominated classical antiquity. Early Christian and mediaeval thinkers, in contrast, favoured fortitude founded on faith and fear of God over philosophical reasoning left to its own devices. Volume 2 turns to theories of courage from the early modern period to the present. It (...) shows how the twin laws of polis and physis are at the heart of post-medieval thought. Courage is found at the crossroads of love and dread, freedom and fate, happiness and suffering, as well as power and submission to the ruling order. The later influence of evolutionism, existentialism, and the social and natural sciences on moral philosophy is also addressed at some length. The protection of people's best interests, the passions and powers of the human will, and the rule of active energy in all aspects of life supplant courage formerly viewed through the lens of reason or faith, or a combination of the two. These new ideas, paradoxically, herald the end of the ethics of courage. They also undermine the courage of ethical thinking. Courage is no longer an end in itself, nor is it a means to happiness "at the end." Regardless of what Gandhi, Tillich, and Foucault have to say about the topic, late modernity and the global age witness a marked loss of interest in courage as an idea worthy of conceptual investigation. Debates about the moral implications of courage give way to the value-free science of resilience, which studies how people can recover from past trauma and find wellness, primarily in the realm of physis. (shrink)

This two-volume work examines far-reaching debates on the concept of courage from Greek antiquity to the Christian and mediaeval periods, as well as the modern era. Volume 1 begins with Homeric poetry and the politics of fearless demi-gods thriving on war. The tales of lion-hearted Heracles, Achilles, and Ulysses, and their tragic fall at the hands of fate, eventually give way to classical views of courage based on competing theories of rational wisdom and truth. Fears of the enemy and anxieties (...) about suffering and death are addressed through the lenses and teachings of medicine, geography, military history, moral philosophy, and metaphysics. For early Christian thinkers, the ethics of fear, fate, and fealty to the Almighty supplant the voice of reason and the wisdom of virtue. Much of Christian doctrine's history is a long journey towards bridging the gap between Greek philosophy and devotion to God and spirits in heaven. Some Church Fathers attempt to dispel the fear of suffering through a joyful craving for martyrdom and the eternal blessings that follow. Others show openness to one or more of the following principles: the abstractions of moral philosophy, the metaphysics of Gnostic enlightenment, the gift of free will and intentionality, the growth of church authority and hegemony, and the intrinsic worth of life on Earth. Augustine, Ambrose, Cassian, and Chrysostom play a central role in revisiting the foundations of Christian fortitude along some or all of these lines. They lay the groundwork for the scholastic adaptations of faith-based rationalism proposed by Peter Lombard, Philip the Chancellor, Albert the Great, and Thomas of Aquinas. The mediaeval period ends with church dissidents and Protestant Reform leaders condemning Rome’s corruption and calling for a return to early Christian faith and the courage of godly fear, submission, suffering, and fate. (shrink)

(1979). A Comparison of Item‐ Total Point Biserial Correlation, Rasch and Alpha‐Beater Item Analysis Procedures. Educational Studies: Vol. 5, No. 3, pp. 265-273.

The study of actions is of major importance in social science regardless of whether the investigator is or isn’t a behaviorist. Actions constitute much if not all of an observational substratum which both prompts explanation and confirms prediction. Actions are of interest both as samples of what an animal can do and as symptoms of underlying structures, either psychic or physical. Doubtless, actions as symptoms of underlying structures are, in the long run, of greater importance in social science than actions (...) as samples of capacities, for to be able to predict an organism’s further performance on the basis of knowledge of capacities is not necessarily to understand the organism. Understanding actions, if it is indeed the desideratum of social science—as I take it to be—involves more, however, than the viewing of actions as symptomatic of underlying structures. Actions are obviously bearers of meaning in and for a given social context, and this meaning is for both the agent and actual or imagined spectators. Spectators can be said to do their viewing both at the time the action takes place and also, in a sense, at later times when recalling or reading reports of a now past action. (shrink)

The study of actions is of major importance in social science regardless of whether the investigator is or isn’t a behaviorist. Actions constitute much if not all of an observational substratum which both prompts explanation and confirms prediction. Actions are of interest both as samples of what an animal can do and as symptoms of underlying structures, either psychic or physical. Doubtless, actions as symptoms of underlying structures are, in the long run, of greater importance in social science than actions (...) as samples of capacities, for to be able to predict an organism’s further performance on the basis of knowledge of capacities is not necessarily to understand the organism. Understanding actions, if it is indeed the desideratum of social science—as I take it to be—involves more, however, than the viewing of actions as symptomatic of underlying structures. Actions are obviously bearers of meaning in and for a given social context, and this meaning is for both the agent and actual or imagined spectators. Spectators can be said to do their viewing both at the time the action takes place and also, in a sense, at later times when recalling or reading reports of a now past action. (shrink)

Is arguing over ontology a mistake? A recent proposal by Karen Bennett suggests that some metaphysical disputes, such as those over constitution and composition, can be dismissed on epistemic grounds. Given that both sides in a dispute try to minimize the differences between them, there are no good metaphysical grounds for choosing between them. In this paper, I expand on her epistemic dismissivism, arguing that given the Quinean conception of the task and method of metaphysics, we are warranted in believing (...) that all ontological disputes will end in a draw, even if they have not yet done so. By a draw, I mean that while both sides in a dispute are genuinely disagreeing about what there is and there are still moves open to them, there are no moves remaining that will advance the discourse further. (shrink)

Continued concern for animal welfare may be alleviated when welfare would be monitored on farms. Monitoring can be characterized as an information system where various stakeholders periodically exchange relevant information. Stakeholders include producers, consumers, retailers, the government, scientists, and others. Valuating animal welfare in the animal-product market chain is regarded as a key challenge to further improve the welfare of farm animals and information on the welfare of animals must, therefore, be assessed objectively, for instance, through monitoring. Interviews with Dutch (...) stakeholder representatives were conducted to identify their perceptions about the monitoring of animal welfare. Stakeholder perceptions were characterized in relation to the specific perspectives of each stakeholder. While producers tend to perceive welfare from a production point of view, consumers will use visual images derived from traditional farming and from the animals’ natural environments. Scientists’ perceptions of animal welfare are affected by the need to measure welfare with quantifiable parameters. Retailers and governments (policy makers) have views of welfare that are derived from their relationships with producers, consumers, non-governmental organizations (NGOs), and scientists. All interviewed stakeholder representatives stated that animal welfare is important. They varied in the extent to which they weighted economic considerations relative to concern for the animals’ welfare. Many stakeholders emphasized the importance of communication in making a monitoring system work. Overall, the perspectives for the development of a sustainable monitoring system that substantially improves farm animal welfare were assessed as being poor in the short term. However, a reliable system could be initiated under certain conditions, such as integrated chains and with influential and motivated stakeholders. A scheme is described with attention points for the development of sustainable monitoring systems for farm animal welfare in the long term. (shrink)

The concept of natural behavior is a key element in current Dutch policy-making on animal welfare. It emphasizes that animals need positive experiences, in addition to minimized suffering. This paper interprets the concept of natural behavior in the context of the scientific framework for welfare assessment. Natural behavior may be defined as behavior that animals have a tendency to exhibit under natural conditions, because these behaviors are pleasurable and promote biological functioning. Animal welfare is the quality of life as perceived (...) by the animal. Animals have evolved cognitive-emotional systems (“welfare needs”) to deal with a variable environment. Animals do not only have so-called physiological needs such as the need for food, water, and thermal comfort. They also need to exercise certain natural behaviors such as rooting or nest-building in pigs, and scratching or dust-bathing in poultry. All needs must be taken into account in order to assess overall welfare. The degree of need satisfaction and frustration can be assessed from scientific information about the intensity, duration, and incidence of (welfare) performance criteria such as measurements of behavior and/or (patho)physiology. Positive welfare value relates to how animals are inclined to behave under natural conditions, in preference tests, and in consumer-demand studies. Negative welfare value relates to stress, frustration, abnormal behavior, aggression, and reduced fitness. Examples are given to illustrate how the need to perform natural behaviors can be assessed following the general principles for welfare assessment, providing a first approximation of how different natural behaviors affect animal welfare. (shrink)