In this paper we consider the algebra of differential operators with polynomial coefficients acting on Clifford algebra-valued functions from both sides. We characterize the subalgebra of SO(m)-invariant differential operators, which itself contains the subalgebra of GL(m)-invariant differential operators.

During the interwar period, the encyclopaedia became a popular educative instrument for demonstrating knowledge. Within the field of cultural internationalism, the pioneer of documentation Paul Otlet redefined the encyclopaedia as a documentary product or as we would say today a "multi-media" product. This article discusses the exchange of ideas between Otlet, Patrick Geddes and Otto Neurath and shows how the graphic and scenographic demonstration of encyclopaedic knowledge at the beginning of the twentieth century applied the values of scientiic universalism to (...) programs of international education and cultural reform. (shrink)

This book surveys and examines the most famous philosophical arguments against building a machine with human-level intelligence. From claims and counter-claims about the ability to implement consciousness, rationality, and meaning, to arguments about cognitive architecture, the book presents a vivid history of the clash between the philosophy and AI. Tellingly, the AI Wars are mostly quiet now. Explaining this crucial fact opens new paths to understanding the current resurgence AI (especially, deep learning AI and robotics), what happens when philosophy meets (...) science, and the role of philosophy in the culture in which it is embedded. -/- Organising the arguments into four core topics - 'Is AI possible', 'Architectures of the Mind', 'Mental Semantics and Mental Symbols' and 'Rationality and Creativity' - this book shows the debate that played out between the philosophers on both sides of the question, and, as well, the debate between philosophers and AI scientists and engineers building AI systems. Up-to-date and forward-looking, the book is packed with fresh insights and supporting material, including: -/- - Accessible introductions to each war, explaining the background behind the main arguments against AI - Each chapter details what happened in the AI wars, the legacy of the attacks, and what new controversies are on the horizon. - Extensive bibliography of key readings. (shrink)

Overall, the deregulation of genetically engineered (GE) crops for commercial cultivation in North America has been a success story. In several cases, however, GE crops have sparked concerns and disagreements among the stakeholders and there are incidences of court lawsuits, including a recent one on glyphosate resistant (GR) alfalfa (Medicago sativa, L.). While GE crops can provide operational benefits to farmers, challenges are looming from commercialization of perennial GE crops. The unique ecology and biology of these crops and GE alfalfa (...) in particular can facilitate adventitious presence (AP) of GE traits and it makes more visible that economic risks for conventional growers and food/feed producers have not been adequately addressed by the GE regulatory system in the United States (US). Asynchronous market approvals and the existence of a number of GE sensitive export markets create uncertainties among the exporters. Policy development in these fields may be helpful for ensuring a broader acceptance and market success of GE agriculture in general. The analysis is focusing on the US, although many diagnosed problems are also relevant to other jurisdictions—in particular if no co-existence policy is in place. (shrink)

Dietary fiber and prebiotics consistently modulate microbiota composition and function and hence may constitute a powerful tool in microbiota-gut-brain axis research. However, this is largely ignored in Hooks et al.’s analysis, which highlights the limitations of probiotics in establishing microbiome-mediated effects on neurobehavioral functioning and neglects discussing the potential of prebiotics in warranting the microbiota's role in such effects.

Research has shown that temporary task goals capture more attention than negative, threatening cues, even in anxious individuals. In the current study, we investigated whether temporary task goals...

ABSTRACT Match-fixing is a major ethical issue in sports. Although research interest in match-fixing has increased in recent years, we remain largely in the dark regarding how both betting- and non-betting-related match-fixing relate to the moral decision-making of those involved. Drawing on Rest’s theory of morality and on the perceptions of a large sample of participants in Flemish sports, this study indicates that most match-fixing incidents are non-betting-related, while moral motivation and associated challenges clearly differ according to the type of (...) match-fixing. Therefore, each type of match-fixing requires different preventive measures. (shrink)

Although attentional bias is considered a key characteristic of anxiety problems, the psychometric properties of most AB measures are either problematic or unknown. We conducted two experiment...

This thesis explores the foundations of cognition. I present, analyze, and defend the claim of Computationalism, which states that cognition reduces to computations. I show how various objections, in particular Searle's Chinese Room argument, are flawed due to a deep confusion regarding the nature of computation. In my defense of Computationalism, I appeal to the notion of emergence, which is a notion that I analyze in detail, since it has been suggested that emergence can solve the problem of consciousness. I (...) argue against this latter suggestion, proposing an alternative view on consciousness instead. (shrink)

In the Netherlands, in 2002, euthanasia became a legitimate medical act, only allowed when the due care criteria and procedural requirements are met. Legally, an Advanced Euthanasia Directive can replace direct communication if a patient can no longer express his own wishes. In the past decade, an exponential number of persons with dementia share a euthanasia request with their physician. The impact this on physicians, and the consequent support needs, remained unknown. Our objective was to gain more insight into the (...) experiences and needs of Dutch general practitioners and elderly care physicians when handling a euthanasia request from a person with dementia. We performed a qualitative interview study. Participants were recruited via purposive sampling. The interviews were transcribed verbatim, and analyzed using the conventional thematic content analysis. Eleven general practitioners and elderly care physicians with a variety of experience and different attitudes towards euthanasia for PWD were included. Euthanasia requests appeared to have a major impact on physicians. Difficulties they experienced were related to timing, workload, pressure from and expectations of relatives, society’s negative view of dementia in combination with the ‘right to die’ view, the interpretation of the law and AEDs, ethical considerations, and communication with PWD and relatives. To deal with these difficulties, participants need support from colleagues and other professionals. Although elderly care physicians appreciated moral deliberation and support by chaplains, this was hardly mentioned by GPs. Euthanasia requests in dementia seem to place an ethically and emotionally heavy burden on Dutch GPs and elderly care physicians. The awareness of, and access to, existing and new support mechanisms needs further exploration. (shrink)

O'Brien & Opie run into conceptual problems trying to equate stable patterns of neural activation with phenomenal experiences. They also seem to make a logical mistake in thinking that the brute association between stable neural patterns and phenomenal experiences implies that they are identical. In general, the authors do not provide us with a story as to why stable neural patterns constitute phenomenal experience.

A number of modern logic books give a misrepresentation of Mill's Methods as originally conceived by Mill. In this paper, I point out what I believe is a better presentation of Mill's Methods. This treatment is not only historically more accurate, but it also represents a better conceptual introduction to Mill's Methods in general.

The Flemish-nationalist party Volksunie ceased to exist in 2001. Due to deep divisions within the party, it was decided to organise a referendum in which each party-member could vote for a project, outlining the future of the party. Since none of the three projects managed to obtain a 50 %-majority, a requisite to preserve the party name, the name Volksunie disappeared and the party was split up in two new parties. In this article we tried to answer the question which (...) members voted for which project. A mail survey was held among a sample of Volksunie-members. Explanations for voting behaviour were found in characteristics of voters, their viewpoints on issues and their appreciation of notable party leaders. Finally, we analysed the second preference-party of the Volksunie-members in order to estimate with which existing parties the two new parties could possibly form future alliances. (shrink)

On 13 June 2003, elections for both the regional parliaments and the European Parliament were held in Belgium.The percentage of voters casting a preferential vote increased when compared with the previous regional and European elections of 1999, reaching scores clearly higher than 60%. The new electoral laws are one explanation for this increase, together with societal evolutions, such as individualism, anti-party feelings, personalization of polities and the appearance of cartels. In comparison with the federal elections of 2003 however, there was (...) a decrease in prererential voting, due to lower campaign expenditures and to the success of parties that traditionally do not attract many preferential votes. Voters can also cast a vote for several candidates figuring on the same party list, which is contrary to the past done quite frequently now. Finally, more candidates than ever succeeded in becoming elected out oî the order of the party list. (shrink)

At 18 May 2003, elections for both the Belgian House of Representatives and Senate were held within a new institutional framework: among others the constituencies were enlarged.The percentage of voters casting a preferential vote increased again, reaching the highest score ever with 66,5 %for the House and 68,0 %for the Senate. Voters can also cast a vote for several candidates figuring on the same party list, which was not done very frequently in the past. The number of preference votes on (...) one ballot increased enormously, with naw on average 2,23 for the House and 2,37 for the Senate. More candidates than ever succeeded in becoming elected out of the order of the party list, which was mostly decisive in the past.Thenew electoral laws are one reason for these changes, togethers with some political and social evolutions, such as individualism, anti-party feelings and mediatisation. (shrink)

The way in which preferential votes of a candidate are spread over a large constituency is analysed for the Belgian Senate elections of 1995 and the European elections of 1994 in Belgium, which are both held in large constituencies. A formula that indicates the concentration of preferential votes controls in each sub-unit of the constituency for the number of votes, the number of votes of the candidate's party and the number of preferential votes. When this variabele is combined with a (...) variabele indicating the total number of preferential votes of a candidate, an interesting classification of nine categories of candidates is archieved.The fact that some candidates have a weak concentration of preferential votes in a sub-unit can be explained either by the social distance between candidate and citizen or by the f act that some candidates, due to their media appearences, are welt known all over the constituency and hence that they obtain an equal share of preferential votes in each sub-unit. The place on the party list and the visibility of a candidate in the campaign have an influence upon the category under which a candidate ressorts. (shrink)

This article discusses the distinction between Figure and Form that Deleuze introduces in Francis Bacon: The Logic of Sensation. He uses the distinction to articulate the difference between two trajectories in modernist painting: the first focusing on sensation, the second on cerebral abstraction. I argue that the distinction between Form and Figure –– and the disjunction of two types of modernist painting initiated by this distinction –– is not as easy to maintain as might appear at first sight. Mapping the (...) lineages of modernist painting from Paul Céézanne to Georges Braque and Theo van Doesburg, the essay argues that the sensuous forces operative in a painting of the Figure are equally at play in the painting of the Form. Modernist painting might therefore be understood as the continuous collapse between Figure and Form, rather than as their strict separation. (shrink)

At the Belgian parliamentary elections in June 1999, the Flemish nationalist party 'Volksunie' which formed an alliance with the social-liberal ID21 progressed slightly. On July 10, 1999, the party decided to participate in the purple-green-yellow Flemish government, but at the same time they decided to stay out of the federal Belgian government. Two years later, the VU-Party Bureau decided that due to deep divisions within the party it had become impossible for the party to continue. The 15.000 party members were (...) asked to judge about the future of the party. Because no party project managed to obtain a 50 %-majority in the party member referendum, the VU dissappeared. Two new parties - the 'Nieuw-Vlaamse Alliantie' and 'Spirit' - emerged from the ruins of the VU. The collapse of the VU can be seen as the most far-reaching change in the Flemish party political context of the last decade. This article focusses on the last two and a half years of the VU and on the first year of the N-VA and Spirit. In a first part, achronological overview is build up. This part provides an overview «from day to day» of the events that played a role in the collapse of the VU and the creation of the N-VA and Spirit. The second part of the article draws amore morphological picture of the VU, the N-VA and Spirit: data are presented about the internal organisation of these parties. By offering an extensive overview of facts and figures, it is the intention of the authors to provide a solid guidelinefor further investigation. (shrink)

At 13 June 1999, elections for the regional Parliaments, the federal Parliament and the European Parliament were held in Belgium.The percentage of voters casting a preferential vote at these elections increased again, reaching the highest score ever in Belgian history. On average, 60,9 % of the electorate expressed their preference for one or more candidates. Although voters have the possibility to cast a multiple preferential vote, this possibility is not used very much. A voter who cast a preferential vote, only (...) vote on average for 1,73 candidates.The further increase in preferential votes was a little surprise since strong limitations were imposed upon campaign expenditures and on commercial affichage. Political and social evolutions, such as individualism, anti-party feelings and mediatisation seem to have had a stronger impact upon preferential voting than these material limitations.The use of the preferential vote varies from one constituency to another, from Flemings to Walloons, and from one party to another. There were some notable evolutions. The voters of the extreme-right Vlaams Blok and of the green parties Agalev and Ecolo, who traditionally cast less preferential votes than voters of other parties, have dimished the gap between them and the other parties. Another important evolution is the decrease of pref erential voting in some constituencies in Wallonia. As for the Senate and the European Parliament, more Flemings now cast a preferential vote than Walloons do. The large constituencies used for these elections seem to attract very well-known politicians and as a consequence also very much preferential votes in Flanders.Despite the increase in preferential voting, the order of the list, composed by the party remained in most cases decisive whether or nota candidate was elected. (shrink)

Hoewel enorm invloedrijk in Duitstalig Europa, heeft de conceptuele geschiedschrijving (Begriffsgeschichte) tot nu toe weinig aandacht in het Engels gekregen. Dit genre van intellectuele geschiedschrijving verschilt van zowel de Franse geschiedschrijving van mentalités als de Engelstalige geschiedschrijving van verhandelingen door het concept. Aan de hand van practische voorbeelden in de geschiedschrijving wordt deze vorm toegelicht door Bram Kempers, Eddy de Jongh en Rolf Reichardt.