A historical overview is given of the contributions of Hendrik Antoon Lorentz in quantum theory. Although especially his early work is valuable, the main importance of Lorentz’s work lies in the conceptual clarifications he provided and in his critique of the foundations of quantum theory.

Name der Zeitschrift: Das Mittelalter Jahrgang: 20 Heft: 1 Seiten: 80-95.

This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy!

Divided into eight sections, each with introductory essays, the selections offer rich and detailed insights into a diverse multinational philosophical landscape. Revealed in this pathbreaking work is the way in which traditional philosophical issues related to ethics, metaphysics, and epistemology, for instance, take on specific forms in Africa's postcolonial struggles. Much of its moral, political, and social philosophy is concerned with the turbulent processes of embracing modern identities while protecting ancient cultures.

In this paper, we first classify different types of second opinions and evaluate the ethical and epistemological implications of providing those in a clinical context. Second, we discuss the issue of how artificial intelligent could replace the human cognitive labour of providing such second opinion and find that several AI reach the levels of accuracy and efficiency needed to clarify their use an urgent ethical issue. Third, we outline the normative conditions of how AI may be used as second opinion (...) in clinical processes, weighing the benefits of its efficiency against concerns of responsibility attribution. Fourth, we provide a ‘rule of disagreement’ that fulfils these conditions while retaining some of the benefits of expanding the use of AI-based decision support systems in clinical contexts. This is because the rule of disagreement proposes to use AI as much as possible, but retain the ability to use human second opinions to resolve disagreements between AI and physician-in-charge. Fifth, we discuss some counterarguments. (shrink)

The revised edition contains a new chapter which provides an elegant description of the semantics. The various classes of lambda calculus models are described in a uniform manner. Some didactical improvements have been made to this edition. An example of a simple model is given and then the general theory (of categorical models) is developed. Indications are given of those parts of the book which can be used to form a coherent course.

Technological developments in the sphere of artificial intelligence (AI) inspire debates about the implications of autonomous weapon systems (AWS), which can select and engage targets without human intervention. While increasingly more systems which could qualify as AWS, such as loitering munitions, are reportedly used in armed conflicts, the global discussion about a system of governance and international legal norms on AWS at the United Nations Convention on Certain Conventional Weapons (UN CCW) has stalled. In this article we argue for the (...) necessity to adopt legal norms on the use and development of AWS. Without a framework for global regulation, state practices in using weapon systems with AI-based and autonomous features will continue to shape the norms of warfare and affect the level and quality of human control in the use of force. By examining the practices of China, Russia, and the United States in their pursuit of AWS-related technologies and participation at the UN CCW debate, we acknowledge that their differing approaches make it challenging for states parties to reach an agreement on regulation, especially in a forum based on consensus. Nevertheless, we argue that global governance on AWS is not impossible. It will depend on the extent to which an actor or group of actors would be ready to take the lead on an alternative process outside of the CCW, inspired by the direction of travel given by previous arms control and weapons ban initiatives. (shrink)

Volume 20, Issue 2, February 2020, Page 35-38.

Hendrik Lorenz presents a comprehensive study of Plato's and Aristotle's conceptions of non-rational desire. They see this as something that humans share with animals, and which aims primarily at the pleasures of food, drink, and sex. Lorenz explores the cognitive resources that both philosophers make available for the explanation of such desires, and what they take rationality to add to the motivational structure of human beings. In doing so, he finds conceptions of the mind that are coherent and deeply (...) integrated with both philosophers' views about such topics as the relation between body and soul, or the nature of the virtues. (shrink)

The aim of this article is to elucidate the processes that characterize natural language interpretation. The basic hypothesis is that natural language interpretation can be characterized as an optimization problem. This innovative view on interpretation is shown to account for the crucial role of contextual information while avoiding certain well-known problems associated with compositionality. This will become particularly clear in the context of incomplete expressions. Our approach takes as a point of departure total freedom of interpretation in combination with the (...) parallel application of soft constraints on possible interpretations. These constraints can be contextual, intonational or syntactic in nature. The integration of pragmatic and syntactic/semantic information in a system of ranked constraints is proposed to correctly derive the optimal interpretations in cases of nominal anaphorization, determiner quantification and elliptical comparatives. (shrink)

The reliability of clinical practice guidelines has been disputed because guideline panel members are often burdened with financial conflicts of interest. Current recommendations for COI regulation advise not only detailed declaration but also active management of conflicts. To continuously assess COI declaration and management in German guidelines we established the public database LeitlinienWatch. We analyzed all German guidelines at the highest methodological level that included recommendations for pharmacological therapy according to five criteria: declaration and assessment of COI, composition of the (...) guideline development group, independence of the coordinators and lead authors, imposed abstentions because of COI and public external review. Each criterion was assessed using predefined outcome categories. Most guidelines contained a detailed declaration of COI. However, none of the guidelines provided full transparency of COI assessment results. The guideline group was composed of a majority of participants with COI in 55% of the guidelines, no guideline was free of participants with COI. Only 9% of guidelines had coordinators and lead authors without any financial COI. Most guidelines did not provide a rule for abstentions for participants with COI. In 21% of guidelines there was a rule, but abstentions were either not practiced or not documented, whereas in 7% partial abstentions and in 2% complete abstentions were documented. Two thirds of the guideline drafts were not externally reviewed via a public website. COI are usually documented in detail in German guidelines of the highest methodological level. However, considerable improvement is needed regarding active management of COI, including recruitment of independent experts for guideline projects, abstention from voting for participants with COI and external review of the guideline draft. We assume that the publicly available ratings on GuidelineWatch will improve the handling of conflicts of interest in guideline development. (shrink)

The first volume of the first Ordo of the Amsterdam edition of the Latin texts of Erasmus contains a general introduction, and presents Erasmus’ attack on barbarious Latin, a commentary on Ovidius’ poem Nux , as well as Erasmus’ Latin translations of Euripides’ Hecuba and Iphigenia , declamations of Libanius, and works by Lucianus and Galenus.

New fetal therapies offer important prospects for improving health. However, having to consider both the fetus and the pregnant woman makes the risk–benefit analysis of fetal therapy trials challenging. Regulatory guidance is limited, and proposed ethical frameworks are overly restrictive or permissive. We propose a new ethical framework for fetal therapy research. First, we argue that considering only biomedical benefits fails to capture all relevant interests. Thus, we endorse expanding the considered benefits to include evidence-based psychosocial effects of fetal therapies. (...) Second, we reject the commonly proposed categorical risk and/or benefit thresholds for assessing fetal therapy research. Instead, we propose that the individual risks for the pregnant woman and the fetus should be justified by the benefits for them and the study’s social value. Studies that meet this overall proportionality criterion but have mildly unfavorable risk–benefit ratios for pregnant women and/or fetuses may be acceptable. (shrink)

Upon hearing “Some of Michelangelo’s sculptures are in Rome,” adults can easily generate a scalar implicature and infer that the intended meaning of the utterance corresponds to “Some but not all Michelangelo’s sculptures are in Rome.” Comprehension experiments show that preschoolers struggle with this kind of inference until at least 5 years of age. Surprisingly, the few studies having investigated children’s production of scalar expressions like some and all suggest that production is adult-like already in their third year of life. (...) Thus, children’s production of implicatures seems to develop at least 2 years before their comprehension of implicatures. In this paper, we present a novel account of scalar implicature generation in the framework of Bidirectional Optimality Theory: the Asymmetry Account. We show that the production–comprehension asymmetry is predicted to emerge because the comprehension of some requires the hearer to consider the speaker’s perspective, but the production of some does not require the speaker to consider the hearer’s perspective. Hence, children’s comprehension of scalar expressions, but not their production of scalar expressions, is predicted to be related to their theory of mind development. Not possessing fully developed theory of mind abilities yet, children thus have difficulty in comprehending scalar expressions such as some in an adult-like way. Our account also explains why variable performance is found in experimental studies testing children’s ability to generate scalar implicatures; moreover, it describes the differences between children’s and adults’ implicature generation in terms of their ability to recursively apply theory of mind; finally, it sheds new light on the question why the interpretation of numerals does not require implicature generation. (shrink)

This volume contains a selection of papers from the International Conference on Argumentation by prominent international scholars of argumentation theory. It provides an insightful cross-section of the current state of affairs in argumentation research. It will be of interest to all those working in the field of argumentation theory and to all scholars who are interested in recent developments in this field.

The project 'Facing Forward' started with a collaboration between five institutions: the Stedelijk Museum Amsterdam, the Amsterdam School for Cultural Analysis at the University of Amsterdam, De Appel arts centre, W139, the Stedelijk Museum Bureau Amsterdam and the art magazine Metroplis M. Having previously organized the lecture series and publications 'Right About Now: Art & Theory in the 1990s' (2005/2006) and 'Now is the Time: Art & Theory in the 21st Century' (2008/2009), the organizing committee decided to take the final (...) step in this timeline and turn its attention to the far horizon. Informed by a shared interest in the role that history, speculation, and utopianism play in the field of contemporary art and design (as well as the larger context of global, socio-economic and political developments), a selection of seven themes emerged from the conversations of the initial organizers. These would eventually shape the seven lecture and discussions events - collected in this volume of essays - publicized under the banner Art & Theory From a Future Perspective. A great number of internationally renowned speakers were invited to reflect on the proposed themes during often sold-out events, which were presented at the Oude Lutherse Kerk in Amsterdam in 2011/2012. Yet, however compelling our desire as organizers to go beyond the framework of contemporary events and the current interest, well-nigh obsession, with history, it is obviously an illusion to think that we can escape the past by means of a turn towards the future."--Page 8. (shrink)

The central theme of this essay concerns the historical character of human nature and especially of human reason. This theme I will develop first of all by discussing briefly that aspect of the present-day philosophical debate, in which this theme takes pride of place. Thus, in the first section, I will try to show which predicament the participants of this debate face in the defense of their position. In the second section, I will discuss the main ideas of Herman Dooyeweerd’s (...) transcendental critique of theoretical thought. This critique, which Dooyeweerd himself considered to be a Christian critique on the whole tradition of philosophical thought, is closely tied up with the theme of this chapter. The problem of the historical character of human rationality — or in the words of Dooyeweerd, ‘the problem of historicism’ — formed for a large part the setting in which he developed his critique. Although I fully accord with the main thrust of Dooyeweerd’s philosophy and especially endorse that which motivated him in his transcendental critique, there are, nevertheless, elements in his conception which have dissatisfied me for a long time. His critique needs to be revised, in my opinion. In section three, I shall attempt such a revision, by taking as a starting point the idea of the ‘answering nature of humankind,’ an idea which I have worked out elsewhere. (shrink)

Although Darwinian concepts have largely been banned from the social sciences of the last century, they have recently seen a revival in several disciplines such as sociology, anthropology, or economics. Most of the current proponents of evolutionary theorizing in the social sciences avoid references to the older literature on social evolution. On that background, this article presents a contribution to Darwinist thinking in early American sociology that has mainly been overlooked in the literature. As the leading figure of the Human (...) Ecology Approach, which was established during the 1920s and 1930s, Robert Ezra Park drew heavily on evolutionary concepts to explain human evolution. A systematic presentation of these concepts in the light of the modern discussion on sociocultural evolution is given, followed by a conclusion about what can be learned from Park today. (shrink)

Pragma-dialectical approaches to legal argumentation seem to be rather different from traditional approaches appealing to standards of propositional logic. Pragma-dialectical analysis of arguments by analogy and e contrario seem to fall foul to the rigors of logical analysis, in which problems or even concepts of analogy and e contrario seem to disappear. The brunt of both types of special legal argumentation appears to be borne by often implicit general principles and an appeal to the system of the law as a (...) whole. Still, pragma-dialectics and logical analysis of legal argument are best seen as fruitfully supplementing each other in ongoing research of ever evolving legal argument. (shrink)

When heterogeneous players make strategic investment decisions in multi-stage contests, they might conserve resources in a current contest to spend more in a subsequent contest, if the degree of heterogeneity in the current contest is sufficiently large. We confirm these predictions using data from German professional soccer, in which players are subject to a one-match ban if they accumulate five yellow cards. Players with four yellow cards facing the risk of being suspended for the next match are less likely to (...) be fielded when the heterogeneity in the current match increases and more likely to receive a fifth yellow card in the current match when heterogeneity in the next match increases or heterogeneity in the next match but one decreases. (shrink)

Nagelaten manuscripten en notities van de Nederlandse hoogleraar in de filosofie (1892-1978), behorend tot de grondleggers van de wijsbegeerte der wetsidee.

The relationship between Albert Einstein’s special theory of relativity and Hendrik A. Lorentz’s ether theory is best understood in terms of competing interpretations of Lorentz invariance. In the 1890s, Lorentz proved and exploited the Lorentz invariance of Maxwell’s equations, the laws governing electromagnetic fields in the ether, with what he called the theorem of corresponding states. To account for the negative results of attempts to detect the earth’s motion through the ether, Lorentz, in effect, (...) had to assume that the laws governing the matter interacting with the fields are Lorentz invariant as well. This additional assumption can be seen as a generalization of the well-known contraction hypothesis. In Lorentz’s theory, it remained an unexplained coincidence that both the laws governing fields and the laws governing matter should be Lorentz invariant. In special relativity, by contrast, the Lorentz invariance of all physical laws directly reflects the Minkowski space-time structure posited by the theory. One can use this observation to produce a common-cause argument to show that the relativistic interpretation of Lorentz invariance is preferable to Lorentz’s interpretation. (shrink)

When Immanuel Bekker, the editor to whom Aristotle owes his page numbers, travelled to Paris in search of manuscripts between 1810 and 1812, Theognis had been a mainstay of classical scholarship for many hundreds of years. Even so, the small tenth-century parchment volume Bekker discovered there came as a surprise. Not only did it contain a text of theTheognideawhich was four hundred years older than the earliest codex known so far; it also added an entirely new section of 176 lines. (...) Presented by the scribe as ‘book 2’ of theElegiac Poemsby Theognis, they revolved around the theme of pederastic love – until then a topic not usually associated with the moralist from Megara. In spite of their similarities to what had now turned into ‘book 1’, they were dismissed as a late forgery almost instantly after Bekker's 1815 edition. Although that view came to be challenged later and can now be considered obsolete, even van Groningen's first comprehensive commentary to theTheognidea, published in 1966 and not superseded since, breaks off where the second book would have begun. Until today, research on this part of the Theognidean corpus has not grown much beyond a trickle flowing at some distance from the classical mainstream. (shrink)

An architect and architectural philosopher, Berlage created a series of buildings and a body of writings that probed the problems and possibilities of Modernism. His principal texts, given here in English for the first time, present a vital chapter in the history of European Modernism.

This paper explores the role and resolution of disagreements between physicians and their diagnostic AI-based decision support systems. With an ever-growing number of applications for these independently operating diagnostic tools, it becomes less and less clear what a physician ought to do in case their diagnosis is in faultless conflict with the results of the DSS. The consequences of such uncertainty can ultimately lead to effects detrimental to the intended purpose of such machines, e.g. by shifting the burden of proof (...) towards a physician. Thus, we require normative clarity for integrating these machines without affecting established, trusted, and relied upon workflows. In reconstructing different causes of conflicts between physicians and their AI-based tools—inspired by the approach of “meaningful human control” over autonomous systems and the challenges to resolve them—we will delineate normative conditions for “meaningful disagreements”. These incorporate the potential of DSS to take on more tasks and outline how the moral responsibility of a physician can be preserved in an increasingly automated clinical work environment. (shrink)

The central theme of this essay concerns the historical character of human nature and especially of human reason. This theme I will develop first of all by discussing briefly that aspect of the present-day philosophical debate, in which this theme takes pride of place. Thus, in the first section, I will try to show which predicament the participants of this debate face in the defense of their position. In the second section, I will discuss the main ideas of Herman Dooyeweerd’s (...) transcendental critique of theoretical thought. This critique, which Dooyeweerd himself considered to be a Christian critique on the whole tradition of philosophical thought, is closely tied up with the theme of this chapter. The problem of the historical character of human rationality — or in the words of Dooyeweerd, ‘the problem of historicism’ — formed for a large part the setting in which he developed his critique. Although I fully accord with the main thrust of Dooyeweerd’s philosophy and especially endorse that which motivated him in his transcendental critique, there are, nevertheless, elements in his conception which have dissatisfied me for a long time. His critique needs to be revised, in my opinion. In section three, I shall attempt such a revision, by taking as a starting point the idea of the ‘answering nature of humankind,’ an idea which I have worked out elsewhere. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 41.1 (2003) 122-123 [Access article in PDF] Andreas Kamp. Philosophiehistorie als Rezeptionsgeschichte. Die Reaktion auf Aristoteles' De Anima-Noetik. Der frühe Hellenismus. Amsterdam: B. R. Grüner, 2001. Pp. viii + 315. Cloth, $82.00. This book is the first installment of an extraordinarily ambitious project. The plan is to investigate the reception of Aristotle's conception of the intellect, set out in De Anima 3.4-5, in (...) the subsequent history of philosophy, from Theophrastus to the present.The current volume deals with the natural starting-point for this project, philosophy in the early Hellenistic period, centering on Theophrastus and his tenure as head of the Peripatos, the school that Aristotle founded.Kamp begins with an engaging, somewhat lengthy introduction, which remains curiously remote from what one might expect it to concentrate on, namely Aristotle's conception of the intellect. Apart from presenting an outline of the reception of Aristotle's philosophical work in general from Theophrastus to Sigmund Freud, the introduction includes only one short paragraph specifically on the topic of the intellect (12). This paragraph, which comes closest to revealing Kamp's reason for focusing, of all things, on Aristotle's discussion of the intellect in De Anima3.4-5, simply makes two unsubstantiated claims. First, Kamp claims that the conception of the intellect, as presented in those chapters, is at the center of the Aristotelian system; and secondly, that this is, of all Aristotelian and perhaps all philosophical theories, the one that received the highest level of attention in the subsequent history of philosophy. The reader might be content to wait and let the second claim be borne out, in the present volume and beyond; but the first claim—concerning the centrality of the intellect, and of De Anima3.4-5, to Aristotle's thought—should at least have received some specification and illustration.The central part of the book, and philosophically by far the most interesting, concerns Theophrastus. Kamp begins with an extensive discussion of the political, social, and economic circumstances of Theophrastus's biography and of the history of the Peripatos. He then offers a reconstruction of Theophrastus's remarks on the nature of the intellect in the fifth book of his Physics. This reconstructive effort is based on a number of fragments [End Page 122] preserved in Themistius's De Anima paraphrase (written at about 350ad) and in Priscianus Lydus's Metaphrasis in Theophrastum (about 530ad). Kamp's discussion of these fragments is well informed, judicious, and illuminating throughout.It may be in order, though, to indicate one misgiving. One of the problems that Theophrastus addresses is that it might appear as if thinking were a matter of the intellect being changed by intelligibles, much as perceiving is, or may appear to be, a matter of sense being changed by sensibles. (If so, the question arises as to what the principle of thought is, the intellect itself or the intelligibles.) Kamp reconstructs the train of thought as follows (124-5).(1) The intellect stands to intelligibles the way sense stands to sensibles (intellect-sense analogy).(2) Sense is changed by sensibles.Therefore, the intellect is changed by intelligibles.Kamp proceeds to suggest (126) that Theophrastus attempted to avoid the conclusion by denying the first premise. According to Kamp, Theophrastus rejected the intellect-sense analogy by drawing attention to significant differences between (the activity of) the intellect and sense perception, one of these being that the intellect (in thinking) is changed only in a special sense, namely inasmuch as it undergoes a transition to activity, energeia. Kamp is right that the notion of a special kind of change that consists in a transition to activity is Aristotelian; it is presented in considerable detail in De Anima2.5 (417b2-16). But it would surely be puzzling if Theophrastus thought that one significant difference between (the activity of) the intellect and sense perception was that the intellect (in thinking) was changed in a special sense (whereas sense perception, to complete the... (shrink)

The target article presents a model for schizophrenia extending four levels of abstraction: molecules, cells, cognition, and syndrome. An important notion in the model is that of coordination, applicable to both the level of cells and of cognition. The molecular level provides an “implementation” of the coordination at the cellular level, which in turn underlies the coordination at the cognitive level, giving rise to the clinical symptoms.

Translation:Hendrik Josephus POS, „Phénoménologie et linguistique.“ In: Keur uit de verspreide geschrift en van Dr. H. J. Pos. Vol. I. Assen: Van Loghum Slaterus 1957, p. 131–141.

Clinician scientists have gained institutional support in the era of translational research, as the key solution to closing the ‘translational gap’ between biomedical research and medical practice. However, clinician scientists remain an ‘endangered species’ in search of a secure niche, while new grants and training programs attempt to counteract their measurable decline in numbers over the past decades. Our study asks how an occupational space for clinician scientists is currently situated between the politics of translation, professional dynamics, and the specialization (...) of academic disciplines. We interviewed clinician scientists, their adjacent professions—clinicians and biomedical researchers—, and contrast their views with expectations from the discourse on clinician scientists in the biomedical and policy literature. We identify professionalizable work and tasks that relate to, first, being able to speak the two languages of both clinic and research, second, translating patients’ needs and clinical experience for further research, and third, counteracting the trends towards specialization by providing an inclusive point of view. We find that clinician scientists are overburdened with fulfilling a hybrid role of simultaneously being clinicians and scientists. Based on these findings, we suggest a path for the future professional development of clinician scientists towards the role of a translator. (shrink)