Group 3 as Sc–Y–La, rather than Sc–Y–Lu, dominates the literature. The history of this situation, including involvement by the IUPAC, is summarised. I step back from the minutiae of physical, chemical, and electronic properties and explore considerations of regularity and symmetry, natural kinds, and quantum mechanics, finding these to be inconclusive. Continuing the theme, a series of ten interlocking arguments, in the context of a chemistry-based periodic table, are presented in support of lanthanum in Group 3. In so doing, I (...) seek to demonstrate a new way of thinking about this matter. The last of my ten arguments is recast as a twenty-word categorical philosophical (viewpoint-based) statement. (shrink)

"Descartes is rightly considered the father of modern philosophy" - Schopenhauer "The effect of this man on his age and the new age cannot be imagined broadly enough... René Descartes is indeed the true beginner of modern philosophy, insofar as it makes thinking the principle. "- Hegel "Descartes was the first to bring to light the idea of a transcendental science, which is to contain a system of knowledge of the conditions of possibility of all knowledge." - Kant A (...) new 2023 translation directly from the original manuscripts into English of Descartes' famous work "Rules for the Direction of the Mind" (Règles pour la direction de l'esprit). This edition contains a new introduction and afterword from the translator, as well as a timeline of Descartes' life and summaries of each of his works. Here, Descartes lays out a method for approaching problems and seeking knowledge. The importance of this work lies in the fact that it established the scientific method as a way of investigating the world, and had a significant influence on the development of modern science. This work is one of the foundational texts of Western Philosophy. (shrink)

Hydrogen is troublesome in any periodic table classification. This being so it may as well be placed in a position that confers desirable attributes to the arrangement of the elements, while notionally recognising its lineage to the group 1 alkali metals and the group 17 halogens. Since the noble gases bridge the halogens and the alkali metals, and hydrogen encompasses the transition from the alkali metals to the halogens, there is more to the idea of hydrogen over helium. (Meyer 1870, (...) p. 357) (Proust 1927, p. 559). (shrink)

Les contributions réunies dans le présent recueil ont, pour la plupart, fait l’objet de communications à l’occasion de deux Journées d’étude organisées l’une à l’Université de Rouen Haute-Normandie par l’ « Équipe de recherche sur les aires culturelles » (ERIAC), l’autre à l’Université de Rennes I par « Philosophie des normes », respectivement les 23 et 25 janvier 2008. Leur ensemble ne donne pas une cartographie complète, même dans les grandes lignes, de la conception aristotélicienne de la rationalité sous ses (...) divers visages : la pratique scientifique d’Aristote et sa conception de la physique, par exemple, ne sont pas considérées ici, pas plus que la contribution décisive du Stagirite à l’histoire de la philosophie première, ontologie ou théologie. La forme achevée du recueil reflète l’esprit dans lequel ont été envisagées les deux Journées dans le prolongement desquelles il s’inscrit et lors desquelles ont été privilégiés les aspects publics et éthiques de la rationalité telle qu’a pu la concevoir celui qui, comme auteur dudit Organon et héritier de la dialectique socratique et platonicienne, est tout d’abord le fondateur de ce que nous appelons « logique », dont il envisage aussi, dans les Seconds analytiques, les prolongements scientifiques (didactiques et démonstratifs). L’ouvrage, qui traite à plusieurs reprises de l’influence d’Aristote, comporte ainsi trois sections : « De la dialectique à la science », « Art oratoire et poésie », « La rationalité éthique ». Ont été réunies, dans la première section, des contributions de Jean-Baptiste Gourinat (« Dialogue et dialectique : la place de la dialectique dans l’organon d’Aristote »), Pierre Joray (« Principe de contradiction et ecthèse dans la syllogistique d’Aristote »), Franck Varenne (« Le rapport entre science et logique chez Aristote vu à travers la critique de Dewey ») ; d’Annie Hourcade (« Le conseil dans la Rhétorique d’Aristote »), Jean-Pierre Cléro (« La Rhétorique d’Aristote et les penseurs des passions du xviiie siècle »), Michele Corradi (« Aristote et la réflexion de Protagoras sur les noms »), Maddalena Vallozza (« Entre poésie et histoire. Aristote, Poétique 1451 a 36-b 11, et l’Évagoras d’Isocrate ») dans la seconde ; dans la troisième, de David Lefebvre (« Avoir un èthos et être philotoioutos. Sur le sens de la notion d’èthos dans les Éthiques d’Aristote »), Michel Narcy (« La phronèsis entre Platon et Aristote »), René Lefebvre (« Syllogisme de l’action et délibération : deux formes de l’alternative pratique chez Aristote ») Marco Zingano (« Décisions morales et interdictions absolues chez Aristote »). (shrink)

This paper presents the concept of the systematisation of praxis and an operational approach to the systematisation of alternative consulting experiences. The essences of this approach have been developed in Latin America after many years of experiences with both popular urban and rural sectors. Taking departure from a concrete example we outline some of the central questions that ought to be discussed during the systematisation process. A real-life case study is proposed: the systematisation of the activities of a development centre (...) in Odsherred, Denmark, to redesign strategies and to recreate actions for the centre's future activities. This centre has carried out community work in the Odsherred region focusing on cultural activities. Finally, methodological reflections are also presented. (shrink)

Après avoir lu les Méditations métaphysiques, la jeune Elisabeth de Bohême demande à s’entretenir avec Descartes pour obtenir des réponses. Ainsi naît, entre un philosophe déjà vieux et une princesse mélancolique, une conversation épistolaire qui durera sept ans, jusqu’à la mort de Descartes en 1650. Ils discuteront aussi bien de mathématiques et de géométrie que de l’union de l’âme et du corps, des passions, du bonheur et de Dieu. Sans jamais renier sa pensée – bien plutôt en la fortifiant –, (...) Descartes diagnostiquera à la jeune femme un excès de cartésianisme : pour la soigner, il valorisera les plaisirs de la vie courante, le repos de l’esprit et le manque de sérieux. Ce volume rassemble la correspondance intégrale entre Descartes et Elisabeth, ainsi que des lettres du philosophe à divers correspondants, dont le médecin Regius, Christine, reine de Suède, et Chanut, ambassadeur de France en Suède. (shrink)

L'infini de la volonté voulante n'exclut pas la finitude de l'homme; il l'accentue plutôt dans la mesure où l'homme est incapable de saturer son désir et de s'achever par lui-même. Cette finitude apparaît comme disproportion ontologique dans l'écart du savoir, du pouvoir et du faire, comme faillite de la volonté voulue dans l'expérience de la faute meurtrière. L'ultime tentative de l'autosuffisance humaine consiste à borner le désir et à l'investir dans un fini absolutisé, comme en témoignage l'action superstitieuse. Dans le (...) cas de l'option positive, qui est de "vouloir l'infini" , peut-on concevoir l'achèvement de l'action comme "divinisation" de l'homme? Oui, a condition de ne pas en faire un donné de nature, ni un acquis de l'homme, mais un accueil du don surnaturel qui exige l'aveu de l'insuffisance. /// O infinito da vontade profunda "voulante" não exclui a finitude do homem; antes a acentua na medida em que o homem é incapaz de saturar o seu desejo e de se completar por si mesmo. Esta finitude aparece como desproporção ontológica no distanciamento do saber, do poder e do fazer, como falência (faillite) da vontade concreta "voulue" na experiência da falta mortífera. A ùltima tentativa da autosuficiência humana consiste em limitar o desejo e em investir num finito absolutizado, como o testemunha a acção supersticiosa. No caso da opção positiva, que é de "querer o infinito", pode conceber-se o acabamento da acção como "divinizacao" do homem? Sim, se não se fizer disso urn dado da natureza, nem uma aquisição do homem, mas urn acolhimento do dom sobrenatural que exige a confissão da insuficiência. /// The infinity of the "willing will" ("volonté voulante") does not exclude man's finiteness. It rather stresses it, by the fact that man is unable to completely satisfy his desire, and to fulfil himself on his own. This finiteness appears as ontological disproportion far from both knowledge, power and acting, and as deficiency ("faillite") of the "willed will" ("volonté vouloue") in the experience of a deadly fault. The last attempt of human self-sufficiency consists in limiting desire, and in investing in an absolute finite, as in the case of a supeititious action. As to positive option, which means "desiring the infinite", should the completing of an action be seen as man's "divinization"? The answer is yes, but only if it is taken neither as a natural datum, nor as a man's acquisition, but rather as an wellcoming of the supernatural gift which demands the acknowledgement of one's insufficiency. (shrink)

Dernier ouvrage publie par Descartes, le Traite des Passions de l'ame (1649) est le fruit de toute sa philosophie. Ce traite, qui s'appuie sur un resume de la biologie cartesienne, s'oriente vers une medecine concrete des affections psycho-physiologiques et s'epanouit en une apologie de la generosite. Aux observations scientifiques, Descartes ne dedaigne pas d'adjoindre des notations psychologiques dont la finesse evoque parfois ces maximes qui fleurissaient dans les salons au XVIIe siecle. Ainsi l'ampleur des conclusions scientifiques, morales et metaphysiques, sources (...) d'etudes toujours renaissantes pour les specialistes, se colore par surcroit d'une richesse vecue qui fait de ce Traite, ecrit pour une princesse et offert a une reine, le modele des ouvrages accessibles au plus grand public. (shrink)

A riddle or a joke? I regret having made light of both myself and the reader. However, the concept of complexity has been explored with such intensity and pedantry, has been analyzed from so many points of view – the mathematical, linguistic, physical, chemical, political, psychological, sociological, physiological, algorithmic, logical, religious, and metaphysical – that nothing, not even the title of this piece, can escape it. Indeed the situation has reached the point where we grow misty-eyed over the very thought (...) of the discrete charms of yesterday's simplicity. Sometimes we dream that complexity itself, after having given us so much, muses – now that its task is fulfilled – of flying up miraculously into the sky, like the Virgin Mother (the Assumption); or ourselves wish to experience – for those spirits who prefer to keep their feet on the ground(!) – the “dissolution” with which entropy begins. Isn't it true that certain words, marked by the spirit of their age, are themselves in fact carried away by the spirit of the age? (shrink)

Attempts to interpret the manifold aspects of the ternary heaven, earth and man, drawing mainly on Far-Eastern sources. This study aims to demonstrate the metaphysical, cosmological and spiritual perspectives underlying the Triad symbol.

Our lives are increasingly intertwined with the digital realm, and with new technology, new ethical problems emerge. The academic field that addresses these problems—which we tentatively call ‘digital ethics’—can be an important intellectual resource for policy making and regulation. This is why it is important to understand how the new ethical challenges of a digital society are being met by academic research. We have undertaken a scientometric analysis to arrive at a better understanding of the nature, scope and dynamics of (...) the field of digital ethics. Our approach in this paper shows how the field of digital ethics is distributed over various academic disciplines. By first having experts select a collection of keywords central to digital ethics, we have generated a dataset of articles discussing these issues. This approach allows us to generate a scientometric visualisation of the field of digital ethics, without being constrained by any preconceived definitions of academic disciplines. We have first of all found that the number of publications pertaining to digital ethics is exponentially increasing. We furthermore established that whereas one may expect digital ethics to be a species of ethics, we in fact found that the various questions pertaining to digital ethics are predominantly being discussed in computer science, law and biomedical science. It is in these fields, more than in the independent field of ethics, that ethical discourse is being developed around concrete and often technical issues. Moreover, it appears that some important ethical values are very prominent in one field (e.g., autonomy in medical science), while being almost absent in others. We conclude that to get a thorough understanding of, and grip on, all the hard ethical questions of a digital society, ethicists, policy makers and legal scholars will need to familiarize themselves with the concrete and practical work that is being done across a range of different scientific fields to deal with these questions. (shrink)

In this reproduction of his original publication of 1649, Rene Descartes discusses how seekers of knowledge can best attain true insight of the world around them. Often referred to as simply the Discourse on the Method, this work is frequently cited as one of the most important to appear during the Enlightenment era. It discusses the ideal means through which those in search of knowledge can approach the world, and the practice of science, as a means of attaining true and (...) definitive insight. The Discourse on Method is influential chiefly for its role in establishing the scientific method; a technique which scientists have used to make valid discoveries over the centuries. Descartes instructs the reader to doubt everything, and to use this universal doubt as a starting point from which to approach a problem. In addition to matters of science, Descartes reflects upon his own personal, religious beliefs. In addition to his Method, Descartes also explains certain social and personal notions such as obeying the laws and statutes of his country and prioritizing self-advancement over the achievement of material wealth or fortune. Famous for including the much-quoted phrase "Je pense, donc je suis" - "I think, therefore I am" - the Discourse on Method today stands as a crucial cornerstone of countless educational courses on philosophy. (shrink)

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be (...) preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

El presente artículo se enfrenta al problema clásico sobre cómo interpretar lo que Aristóteles, en de An. III, 5, denomina “el intelecto que produce todas las cosas”, llamado comúnmente intelecto agente. Históricamente, se han presentado dos lecturas: una, que se remonta a Alejandro de Afrodisia, que lo asocia con el motor inmóvil y con la divinidad y otra, asociada a Teofrasto pero que tiene en Filópono y St. Tomás de Aquino a sus principales representantes, que lo considera una facultad puramente (...) humana. Esta última interpretación ha sido históricamente la más sostenida; sin embargo, en tiempos recientes ha habido un resurgimiento de interpretaciones del intelecto agente como “divino”. Lo que queremos mostrar en este texto es que este resurgimiento se debe, más que a una reinterpretación del intelecto agente, a una comprensión diferente de la divinidad en la filosofía aristotélica, con características inmanentes y más próximas al intelecto humano. (shrink)

The theologian Hugo Rahner argued that the homo ludens is a man of ‘Ernstheiterkeit’, a person who can smile under tears but also recognizes the gravity in all earthly cheerfulness. The primary aim of this study was to test the validity of this notion: Do homines ludentes exist? Two hundred sixty-three adult subjects were measured for seriousness and cheerfulness and playfulness. Results provided unequivocal support for Rahner's thesis. Numerous subjects scored high in both seriousness and cheerfulness thus confirming the existence (...) of homines ludentes. It was further found that these subjects were among those scoring highest in playfulness. Subjects scoring high in cheerfulness but low in seriousness were, however, even more closely associated with playfulness. The scores for homines ludentes did not differ from the rest of the subjects in the creative and dynamic facets of playfulness. The importance of developing empirical research to investigate hypotheses derived from non-scientific concepts is discussed. (shrink)

The hexagonal structure for ‘the geometry of logical opposition’, as coming from Aristoteles–Apuleius square and Sesmat–Blanché hexagon, is presented here in connection with, on the one hand, geometrical ideas on duality on triangles (construction of ‘companion’), and on the other hand, constructions of tripartitions, emphasizing that these are exactly cases of borromean objects. Then a new case of a logical interest introduced here is the double magic tripartition determining the semi-ring ${\mathcal{B}_3}$ and this is a borromean object again, in the (...) heart of the semi-ring ${{\rm Mat}_{3}(\mathbb{B}_{\rm Alg})}$ . With this example we understand better in which sense the borromean object is a deepening of the hexagon, in a logical vein. Then, and this is our main objective here, the Post-Mal’cev full iterative algebra ${\mathbb{P}_4 = \mathbb{P}(\mathbb{F}_4)}$ of functions of all arities on ${\mathbb{F}_4}$ , is proved to be a borromean object, generated by three copies of ${\mathbb{P}_2}$ in it. This fact is induced by a hexagonal structure of the field ${\mathbb{F}_4}$ . This hexagonal structure is seen as precisely a geometrical addition to standard boolean logic, exhibiting ${\mathbb{F}_4}$ as a ‘boolean manifold’. This structure allows to analyze also ${\mathbb{P}_4}$ as generated by adding to a boolean set of logical functions a very special modality, namely the Frobenius squaring map in ${\mathbb{F}_4}$ . It is related to the splitting of paradoxes, to modified logic, to specular logic. It is a setting for a theory of paradoxical sentences, seen as computations of movements on the bi-hexagonal link among the 12 classical logics on a set of 4 values. (shrink)

Rene Descartes Discourse on the Method of Rightly Conducting the Reason, and Seeking Truth in the Sciences by Rene Descartes The Discourse on the Method (French: Discours de la methode) is a philosophical and autobiographical treatise published by Rene Descartes in 1637. Its full name is Discourse on the Method of Rightly Conducting One's Reason and of Seeking Truth in the Sciences (French title: Discours de la methode pour bien conduire sa raison, et chercher la verite dans les sciences). The (...) Discourse on The Method is best known as the source of the famous quotation "Je pense, donc je suis" ("I think, therefore I am"), which occurs in Part IV of the work. Good sense is, of all things among men, the most equally distributed; for every one thinks himself so abundantly provided with it, that those even who are the most difficult to satisfy in everything else, do not usually desire a larger measure of this quality than they already possess. And in this it is not likely that all are mistaken the conviction is rather to be held as testifying that the power of judging aright and of distinguishing truth from error, which is properly what is called good sense or reason, is by nature equal in all men; and that the diversity of our opinions, consequently, does not arise from some being endowed with a larger share of reason than others, but solely from this, that we conduct our thoughts along different ways, and do not fix our attention on the same objects. For to be possessed of a vigorous mind is not enough; the prime requisite is rightly to apply it. The greatest minds, as they are capable of the highest excellences, are open likewise to the greatest aberrations; and those who travel very slowly may yet make far greater progress, provided they keep always to the straight road, than those who, while they run, forsake it. (shrink)

GNèS LEJBOWICZ. — Pour comprendre votre réflexion, pouvez-vous nous parler en introduction de votre parcours au sein de l’armée ? 2 JEAN-RENé BACHELET. — Je ne suis pas un officier « de droit divin » ; mon père a été tué dans la Résistance, et j’ai été enfant de troupe à 10 ans. Je suis d’une génération qui est à cheval sur deux ères : celle d’un temps ancien qui se termine avec la fin du monde bipolaire et celle (...) de temps nouveaux, chaotiques et ouverts par une exceptionnelle conjugaison de ruptures, notamment géostratégiques. (shrink)

The genetic analysis of development has revealed the importance of small sets of interacting genes in most morphogenetic processes. The results of gene interactions have so far been examined intuitively. This approach is largely sufficient when one deals with simple interactions, a feedback circuit for example. As more components become involved, however, it is difficult to make sure that the intuitive approach gives a comprehensive view of the behaviour of the system. In this paper, we illustrate the use of a (...) logical approach to describe the genetic circuit that underlies the singling out of sense organ precursor cells in Drosophila. We show how to apply logical modelling to a realistic problem, and how this approach allows an easy assessment of the dynamic properties of the system, i.e., of its possible evolutions and of its reactions to fluctuations and perturbations. BioEssays 25:802–807, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

RésuméĽincorporation?on;un isotope radioactif à une solution nutritive permet de suivre à la trace ľélément absorbé,?on;en distinguer les entrées et les sorties en en dégageant les modalites. Etonna‐ment précise, la méthode a largement comribuéà la mise en évidence des pompes métaboliques qui assurent les transports au travers des membranes biologiques. Mais elle cache des pièges que le spécialiste lui‐même a souvent du mal à déjouer.The inclusion of a radioisotope in a nutrient solution enables us to detect traces of the particular element (...) during the course of its absorption, to distinguish between its entrance and its exit, and to generally clarify some of the mechanisms involved in the process. This surprisingly precise method has contributed extensively to the evidence that transport across biological membranes is mediated by metabolic pumps. However, one should remember that it is strewn with hidden pitfalls which even a specialist is at pains to avoid.ZusammenfassungDas Einschleusen radioaktiver Isotope in eine Nahrlösung erlaubt es, die Fortbewegungen der so aufgenommenen Elemente genau zu verfolgen, deren Eintritt und Austritt zu unterschei‐den und damit den entstehenden Mechanismus zu zeigen. Diese Methode hat viel dazu beigetra‐gen, den Transfer durch biologische Membranen, der von metabolischen Pumpen vollbracht wird, erstaunlich zu veranschaulichen. Jedoch verbirgt sie Fallen, die selbst für den Spezialisten schwer zu entdecken und zu umgehen sind. (shrink)

Recent meta-studies have shown that there are no known risk factors for suicidal behavior that could be used for behavior prediction, rendering the classic understanding of high and low risk for suicide questionable. The aim of this manuscript is to propose a new understanding of suicide risk that does not depend on predictive powers. In contrast, the developed Normic account of suicide risk, which is based on a possible world framework rather than probability calculations, suggests that the normalcy of an (...) event determines whether the risk for the event’s occurrence is high or low. I suggest that this normalcy stems from the norms of practical rationality for agents who consider self-killing. The more difficult it is to make sense of possible intentional self-killing, the more abnormal the event is, which renders the event less risky. Consequently, from the Normic account of suicide risk, an individual who has weak or no life-sustaining reasons is at high risk for suicide. In conclusion, although the prediction of suicide is beyond the current scope of clinical psychology, there are still reasonable options for understanding what distinguishes individuals at high risk from those at low risk for suicide. (shrink)

Cet ouvrage est une réédition numérique d’un livre paru au XXe siècle, désormais indisponible dans son format d’origine.

This essay examines the ambiguous role of imagination in Kierkegaard's work, arguing that the concept of imagination is fundamental to his existential transformation of the question of reality.

Storage operators have been introduced by J. L. Krivine in [5] they are closed λ-terms which, for a data type, allow one to simulate a "call by value" while using the "call by name" strategy. In this paper, we introduce the directed λ-calculus and show that it has the usual properties of the ordinary λ-calculus. With this calculus we get an equivalent--and simple--definition of the storage operators that allows to show some of their properties: $\bullet$ the stability of the set (...) of storage operators under the β-equivalence (Theorem 5.1.1); $\bullet$ the undecidability (and semidecidability) of the problem "is a closed λ-term t a storage operator for a finite set of closed normal λ-terms?" (Theorems 5.2.2 and 5.2.3); $\bullet$ the existence of storage operators for every finite set of closed normal λ-terms (Theorem 5.4.3); $\bullet$ the computation time of the "storage operation" (Theorem 5.5.2). (shrink)