In der Reihe werden herausragende monographische Untersuchungen und Sammelbände zu allen Aspekten der Philosophie Kants veröffentlicht, ebenso zum systematischen Verhältnis seiner Philosophie zu anderen philosophischen Ansätzen in Geschichte und Gegenwart. Veröffentlicht werden Studien, die einen innovativen Charakter haben und ausdrückliche Desiderate der Forschung erfüllen. Die Publikationen repräsentieren damit den aktuellsten Stand der Forschung.

"Open Democracy envisions what true government by mass leadership could look like."—Nathan Heller, New Yorker How a new model of democracy that opens up power to ordinary citizens could strengthen inclusiveness, responsiveness, and accountability in modern societies To the ancient Greeks, democracy meant gathering in public and debating laws set by a randomly selected assembly of several hundred citizens. To the Icelandic Vikings, democracy meant meeting every summer in a field to discuss issues until consensus was reached. Our contemporary representative (...) democracies are very different. Modern parliaments are gated and guarded, and it seems as if only certain people—with the right suit, accent, wealth, and connections—are welcome. Diagnosing what is wrong with representative government and aiming to recover some of the lost openness of ancient democracies, Open Democracy presents a new paradigm of democracy in which power is genuinely accessible to ordinary citizens. Hélène Landemore favors the ideal of “representing and being represented in turn” over direct-democracy approaches. Supporting a fresh nonelectoral understanding of democratic representation, Landemore recommends centering political institutions around the “open mini-public”—a large, jury-like body of randomly selected citizens gathered to define laws and policies for the polity, in connection with the larger public. She also defends five institutional principles as the foundations of an open democracy: participatory rights, deliberation, the majoritarian principle, democratic representation, and transparency. Open Democracy demonstrates that placing ordinary citizens, rather than elites, at the heart of democratic power is not only the true meaning of a government of, by, and for the people, but also feasible and, today more than ever, urgently needed. (shrink)

The maze and the masses -- Democracy as the rule of the dumb many? -- A selective genealogy of the epistemic argument for democracy -- First mechanism of democratic reason: inclusive deliberation -- Epistemic failures of deliberation -- Second mechanism of democratic reason: majority rule.

Objective: Basic temporal dysfunctions have been described in patients with schizophrenia, which may impact their ability to connect and synchronize with the outer world. The present study was conducted with the aim to distinguish between interval timing and synchronization difficulties and more generally the spatial-temporal organization disturbances for voluntary actions. A new sensorimotor synchronization task was developed to test these abilities. Method: Twenty-four chronic schizophrenia patients matched with 27 controls performed a spatial-tapping task in which finger taps were to be (...) produced in synchrony with a regular metronome to six visual targets presented around a virtual circle on a tactile screen. Isochronous (time intervals of 500 ms) and non-isochronous auditory sequences (alternated time intervals of 300/600 ms) were presented. The capacity to produce time intervals accurately versus the ability to synchronize own actions (tap) with external events (tone) were measured. Results: Patients with schizophrenia were able to produce the tapping patterns of both isochronous and non-isochronous auditory sequences as accurately as controls producing inter-response intervals close to the expected interval of 500 and 900 ms, respectively. However, the synchronization performances revealed significantly more positive asynchrony means (but similar variances) in the patient group than in the control group for both types of auditory sequences. Conclusion: The patterns of results suggest that patients with schizophrenia are able to perceive and produce both simple and complex sequences of time intervals but are impaired in the ability to synchronize their actions with external events. These findings suggest a specific deficit in predictive timing, which may be at the core of early symptoms previously described in schizophrenia. (shrink)

This paper takes stock of a recent but growing movement within the field of deliberative democracy, which normatively argues for the epistemic dimension of democratic authority and positively defends the truth-tracking properties of democratic procedures. Authors within that movement call themselves epistemic democrats, hence the recognition by many of an ‘epistemic turn’ in democratic theory. The paper argues that this turn is a desirable direction in which the field ought to evolve, taking it beyond the ‘fact of disagreement’ that had (...) previously blocked the conceptual road to acknowledging more than intrinsic properties to democratic decision procedures. The paper shows how two authors in particular – Joshua Cohen and David Estlund – have successfully lifted the Rawlsian requirement of epistemic abstinence and defends epistemic democrats and the implications of the epistemic turn in democratic theory against various misconceptions. (shrink)

This paper argues in favor of the epistemic properties of inclusiveness in the context of democratic deliberative assemblies and derives the implications of this argument in terms of the epistemically superior mode of selection of representatives. The paper makes the general case that, all other things being equal and under some reasonable assumptions, more is smarter. When applied to deliberative assemblies of representatives, where there is an upper limit to the number of people that can be included in the group, (...) the argument translates into a defense of a specific selection mode of participants: random selection. (shrink)

This book uncovers and explores the constant tension between the historical and the transcendental that lies at the heart of Michel Foucault's work. In the process, it also assesses the philosophical foundations of his thought by examining his theoretical borrowings from Kant, Nietzsche, and Heidegger, who each provided him with tools to critically rethink the status of the transcendental. Given Foucault's constant focus on the question of the possibility for knowledge, the author argues that his philosophical itinerary can be understood (...) as a series of attempts to historicize the transcendental. In so doing, he seeks to uncover a specific level that would identify these conditions without falling either into an excess of idealism or of materialism. The author concludes that, although this problem does unify Foucault's work and gives it its specifically philosophical dimension, none of the concepts successively provided manages to name these conditions without falling into the pitfalls that Foucault originally denounced as characteristic of the "anthropological sleep"--various forms of confusion between the historical and the transcendental. Although Foucault's work provides us with a highly illuminating analysis of the major problems of post-Kantian philosophies, ultimately it remains aporetic in that it also fails to overcome them. (shrink)

The use of information technology in linguistic research gave rise in the 1950s to what is known as Natural Language Processing, but that framework was created without paying due attention to the need for logical reconstruction of linguistic concepts which were borrowed directly from barely formalised structural linguistics. The Computer-aided Acquisition of Semantic Knowledge project based on the Knowledge Discovery in Databases technology enabled us to interact with computers while gathering and improving our knowledge about languages. Thus, with the help (...) of data mining tools, as a result of revisiting two sorts of generally admitted linguistic theories, we succeeded in improving these local linguistic approaches by proposing to unify the Associative Semantics theory with the Meta-Informative Centering theory. The resulting Distributed Grammar program treats, in addition to the above types of information, the third one, para-information which – despite many studies – had no uniform theoretical background in general linguistics. This DG program aims to lay the foundations for creating the theoretical background of Conceptual Linguistics. (shrink)

The purpose of this article is to show how schizophrenia, understood as a distortion of the most intimate structures of subjectivity, illustrates the nature of subjectivity as such, while at the same time how philosophical considerations may help to understand schizophrenia. More precisely, schizophrenic experiences of self-alienation seem to reflect a congealing or concretization of a form of differentiation or potential alterity implicit in the dynamic nature of subjectivity. In other words, we propose that the structure of subjectivity includes potential (...) divisions and fissures that condition the experiences of radical self-alienation seen in schizophrenia. In order to elucidate how this alterity emerges within the self in schizophrenia and in order to consider its conditions of possibility we examine the disorders of the self as described in phenomenological psychopathology. We especially use the work of the Japanese psychiatrists Mari Nagai, her teacher Bin Kimura, and the French psychiatrist Henry Ey, supplemented with clinical material from our own research. Finally, we shed light on the development of the psychotic symptoms such as hallucinations and delusions, which are understood as the expressions of a radical alterization of the self. (shrink)

Consensus plays an ambiguous role in deliberative democracy. While it formed the horizon of early deliberative theories, many now denounce it as an empirically unachievable outcome, a logically impossible stopping rule, and a normatively undesirable ideal. Deliberative disagreement, by contrast, is celebrated not just as an empirically unavoidable outcome but also as a democratically sound and normatively desirable goal of deliberation. Majority rule has generally displaced unanimity as the ideal way of bringing deliberation to a close. This article offers an (...) epistemic perspective on this question of consensus versus disagreement. For ensuring the production of better decisions, we argue, the normative appeal of consensus varies depending on the deliberative task – whether it entails problem solving or prediction. We argue that in pure problem-solving contexts, consensus retains a strong normative appeal and forms the ideal deliberative outcome of deliberation. In contrast, on predictive tasks, consensus should generally not be used as a stopping rule noris it likely to be epistemically desirable as an outcome. Instead deliberators may be better served by ending the deliberation with a form of deliberative disagreement we call ‘positive dissensus’, which paves the way for more accurate aggregate predictions. (shrink)

ABSTRACTThe idea that the crowd could ever be intelligent is a counterintuitive one. Our modern, Western faith in experts and bureaucracies is rooted in the notion that political competence is the purview of the select few. Here, as in my book Democratic Reason, I defend the opposite view: that the diverse many are often smarter than a group of select elites because of the different cognitive tools, perspectives, heuristics, and knowledge they bring to political problem solving and prediction. In this (...) essay I defend my epistemic argument against proceduralist democrats; the value of model thinking against empiricists; the bracketing of fundamental value diversity against critics who see such diversity as an essential feature of politics; the intelligence of the masses in the face of voter ignorance and systematic biases; and the normative priority of democracy over market mechanisms. I also consider challenges to my use of Hong and Page's formal results, the epistemically proper selection method for representatives, and the role of deliberation in problem solving. I finally chart three avenues for further research. (shrink)

Disclosure is a common response to conflicts of interest; it is intended to expose the conflict to scrutiny and enable it to be appropriately managed. For disclosure to be effective the receiver of the disclosure needs to be able to use the information to assess how the conflict may impact on their interests and then implement a suitable response. The act of disclosure also creates an expectation of self-regulation, as the person with the conflicting interests will be mindful of their (...) own potential biases and aware that their decisions may be monitored. This article discusses some of the problems of relying on disclosure as a solution to address conflicts of interest in research, including the added complexities around institutional conflicts of interest. The case of Dan Markingson illustrates these issues and highlights the vulnerable position relying on disclosure as a solution leaves research participants in. (shrink)

In the burgeoning debate about neuroscience’s role in contemporary society, the issue of brain optimization, or the application of neuroscientific knowledge and technologies to augment neurocognitive function, has taken center stage. Previous research has characterized media discourse on brain optimization as individualistic in ethos, pressuring individuals to expend calculated effort in cultivating culturally desirable forms of selves and bodies. However, little research has investigated whether the themes that characterize media dialogue are shared by lay populations. This article considers the relationship (...) between the representations of brain optimization that surfaced in a study of British press coverage between 2000 and 2012 and interviews with forty-eight London residents. Both data sets represented the brain as a resource that could be manipulated by the individual, with optimal brain function contingent on applying self-control in one’s lifestyle choices. However, these ideas emerged more sharply in the media than in the interviews: while most interviewees were aware of brain optimization practices, few were committed to carrying them out. The two data sets diverged in several ways: the media’s intense preoccupation with optimizing children’s brains was not apparent in lay dialogue, while interviewees elaborated beliefs about the underuse of brain tissue that showed no presence in the media. This article considers these continuities and discontinuities in light of their wider cultural significance and their implications for the media–mind relationship in public engagement with neuroscience. (shrink)

Due to the spread of COVID-19, a key challenge was to reduce potential staff shortages in the healthcare sector. Besides recruiting retired healthcare workers, medical students were considered to support this task. Commitment of medical students in Germany during the COVID-19 pandemic was evaluated using an online survey, with particular focus on their burdens and anxieties. This survey was distributed to students within a 2-week period in April and May 2020. Ultimately, 1241 participants were included in the analysis. During the (...) pandemic, 67.9% of the participants reported that they had volunteered. Furthermore, 88.9% stated that they were against compulsory recruitment in this context. Students who volunteered had a significantly lower anxiety index than non-committed students. Additionally, students were more concerned about infecting other patients and relatives than themselves. Higher levels of anxiety were related to lower levels of commitment. A mandatory assignment during the pandemic was rejected by the students and does not seem to be necessary due to the large number of volunteers. (shrink)

Les missions du printemps et de l’été 2014 ont permis de poursuivre l’étude et la fouille de la Maison de Fourni dont le dossier a été repris en 2008. La mission de mai 2015 a eu plusieurs objectifs : la préparation de la fouille de l’été par le désherbage de la partie Sud de la Maison ; la poursuite de l’inventaire et de l’étude céramique dans les réserves du musée de Délos par A.‑S. Martz ; le diagnostic pour la restauration (...) des vasques en brèche et en marbre, ainsi que pour la restauration... (shrink)

TOPOGRAPHICAL MISSIONS ΤΟ LATO I (2005-2007): A CRITICAL ANALYSIS OF THE PLAN BY J. DEMARGNE AND V. SEYK (1901) In the years 2005 and 2007 the site of Lato in Crete was the object of three new topographical and geomorphological study campaigns. The works carried out over the entire site permitted in particular the analysis of the only to date available complete plan of the city, that of J. Demargne and the architect V. Seyk undertaken in 1900. The objectif was (...) to establish its documentary interest and limits in use, and thus better prepare new measurements and guide renewed field work. To do this, it was first necessary (I) to retrace the history of previous graphic documentation, (II) to analyse the work of J. Demargne and V. Seyk, so as (III) to gauge its value against the standards of current research, and (IV) to establish its interest in terms of the cultural resource management of the site. A second paper to appear in BCH will develop, on basis of a new documentation, the urban and morphological analysis of the remains of Lato. (shrink)

Hélène Landemore ,Aude Bandini | : Cet article présente les bases d’un argument épistémique en faveur de la démocratie définie comme procédure de décision collective. Il explore également les implications d’un tel argument épistémique par rapport à d’autres justifications établies de la démocratie, par rapport aux explications scientifiques de ses succès empiriques, et en termes de politiques publiques à mener. En ce qui concerne l’argument épistémique proprement dit, il repose sur le concept de « raison démocratique », autrement dit l’intelligence (...) collective des individus dans le domaine politique, et propose, de manière contre-intuitive, que la raison démocratique est davantage tributaire de la diversitécognitive des individus qui prennent par aux décisions que de leurs aptitudes personnelles. Généralement, l’argument de la raison démocratique complète les arguments procéduraux basés sur l’équité et l’égalité pour offrir une explication fonctionnaliste complète de la démocratie. Pour finir, cet article défend l’idée de réformes institutionnelles favorisant la participation citoyenne dans le processus de prise de décision collective. | : This paper presents the foundations of a systematic epistemic case for democracy as a collective decision-rule and explores the implications of this epistemic claim for normative justifications of democracy, scientific explanations of its empirical success, and policy reforms. As far as the epistemic case is concerned, the paper proposes an account based on the concept of “democratic reason,” or the collective intelligence of the people in politics. The paper argues that, counter-intuitively, democratic reason is more a function of the cognitive diversity of the individuals taking part in the decision than of their individual ability. As an account of democracy’s epistemic benefits, the argument from democratic reason supplements procedural accounts based on fairness and equality to provide a complete functionalist explanation of democracy. Finally, the argument supports policy reforms increasing citizens’ participation in the collective decision-process. (shrink)

The task of being oneself lies at the heart of human existence and entails the possibility of not being oneself. In the case of schizophrenia, this possibility may come to the fore in a disturbing way. Patients often report that they feel alienated from themselves. Therefore, it is perhaps unsurprising that schizophrenia sometimes has been described with the heideggerian notion of inauthenticity. The aim of this paper is to explore if this description is adequate. We discuss two phenomenological accounts of (...) schizophrenia: Binswanger’s account of schizophrenia as a form of inauthenticity and Blankenburg’s account of schizophrenia as a loss of common sense, which seems construable as a loss of inauthenticity. We argue that the accounts are highlighting aspects of the same underlying phenomenon, viz. schizophrenic autism. Moreover, we argue that Binswanger’s description of schizophrenia as a form of inauthenticity is inadequate and we discuss experiences of self-alienation in schizophrenia. (shrink)

By drawing up a model of the internal communication system of Bangladeshi ready-made garment factories, Helene Blumer identifies the existence and intensity of its communication flows. She furthermore discloses a connection from this communication system to labor unrest. The absence of a functioning formal channel within the factory, the lack of effective labor representation and the rare physical presence of the factory owners confirm the existence of a communication barrier. As symptom of a flawed communication system, this barrier confirms (...) a connection to labor unrest and the management's unawareness of its emergence, which would thwart any modes to predict and prevent work disruptions. Contents - Introduction to the Bangladeshi ready-made garment sector - Illustration of the internal communication system of Bangladeshi ready-made garment factories - Display of a communication barrier and its connection to labor unrest Target Groups - Academics in the fields of corporate responsibility and corporate/internal communication - Practitioners in the fields of corporate responsibility, corporate communication, development cooperation and garment industry About the Author Helene Blumer obtained her Master of Science in Business Administration (major in New Business Development) at the University of Applied Sciences HTW Chur. She currently works at the Swiss Institute for Entrepreneurship (SIFE) in the fields of corporate responsibility and business internationalization. (shrink)

Public sector adoption of AI techniques in welfare systems recasts historic national data as resource for machine learning. In this paper, we examine how the use of register data for development of predictive models produces new ‘afterlives’ for citizen data. First, we document a Danish research project’s practical efforts to develop an algorithmic decision-support model for social workers to classify children’s risk of maltreatment. Second, we outline the tensions emerging from project members’ negotiations about which datasets to include. Third, we (...) identify three types of afterlives for citizen data in machine learning projects: (1) data afterlives for training and testing the algorithm, acting as ‘ground truth’ for inferring futures, (2) data afterlives for validating the algorithmic model, acting as markers of robustness, and (3) data afterlives for improving the model’s fairness, valuated for reasons of data ethics. We conclude by discussing how, on one hand, these afterlives engender new ethical relations between state and citizens; and how they, on the other hand, also articulate an alternative view on the value of datasets, posing interesting contrasts between machine learning projects developed within the context of the Danish welfare state and mainstream corporate AI discourses of the bigger, the better. (shrink)

Trade secret theft is a problem that almost all organizations face. The greatest threat is employee mobility and potential unethical post-employment behavior. This study investigates the role of individual personality traits in judgments about trade secret misappropriation. Our hypotheses were tested in three studies addressing three different situational contexts: current employees, employees about to be laid off, and students who had quit their job. Relationships were estimated with robust regression. The results show that some personality traits predict judgment about another (...) person's trade secret misappropriation, and that the situational context in which individuals formulate their ethical judgment moderates the impact of personality traits on ethical judgment. (shrink)

Who can say "I am Jewish?" What does "Jew" mean? What especially does it mean for Jacques Derrida, founder of deconstruction, scoffer at boundaries and fixed identities, explorer of the indeterminate and undecidable? In _Portrait of Jacques Derrida as a Young Jewish Saint_, French feminist philosopher Hélène Cixous follows the intertwined threads of Jewishness and non-Jewishness that play through the life and works of one of the greatest living philosophers. Cixous is a lifelong friend of Derrida. They both grew up (...) as French Jews in Algeria and share a "belonging constituted of exclusion and nonbelonging"--not Algerian, rejected by France, their Jewishness concealed or acculturated. In Derrida's family "one never said 'circumcision'but 'baptism,'not 'Bar Mitzvah'but 'communion.'" Judaism cloaked in Catholicism is one example of the undecidability of identity that influenced the thinker whom Cixous calls a "Jewish Saint." An intellectual contemporary of Derrida, Cixous's ideas on writing have an affinity with his philosophy of deconstruction, which sought to overturn binary oppositions--such as man/woman, or Jew/non-Jew--and blur boundaries of exclusion inherent in Western thought. In portraying Derrida, Cixous uses metonymy, alliteration, rhyme, neologisms, and puns to keep the text in constant motion, freeing language from any rigidity of meaning. In this way she writes a portrait of "Derrida in flight," slipping from one appearance to the next, unable to be fixed in one spot, yet encompassing each point he passes. From the circumcision act to family relationships, through Derrida's works to those of Celan, Rousseau, and Beaumarchais, Cixous effortlessly merges biography and textual commentary in this playful portrait of the man, his works, and being (or not being) Jewish. (shrink)

Inequity has been a hallmark of the COVID-19 pandemic in the United States, especially in the sharply disproportionate impacts among people of color. Recent studies have confirmed that t...

On the basis of Anton Marty’s 1867 Preisschrift, this article offers a reconstruction of the semiotic and linguistic investigations the Swiss philosopher develops just before becoming a student of Brentano. The paper then compares this account with the view on signs that will be given in Marty’s later work, as well as within the Austro-German tradition.

This article furnishes a philosophical background for the current debate about responsibility and culpability for war crimes by referring to ideas from three important just war thinkers: Augustine, Francisco de Vitoria, and Michael Walzer. It combines lessons from these three thinkers with perspectives on current problems in the ethics of war, distinguishes between legal culpability, moral culpability, and moral responsibility, and stresses that even lower-ranking soldiers must in many cases assume moral responsibility for their acts, even though they are part (...) of a military hierarchy and act under orders. The questions addressed in this article are arguably among the hardest and most muddled in military ethics and deserve close philosophical analysis and scrutiny. (shrink)

NIMBY (Not In My Backyard) refers to an oppositional attitude from local residents against some risk generating facility that they have been chosen to host either by government or industry. The attitude is claimed to be characteristic of someone who is positive to a facility but who wants someone else to be its host. Since siting cannot be provided if everyone has this attitude, society ends up in a worse situation. The attitude is claimed to be egoistic and irrational. Here (...) it is argued that the NIMBY critique rests on questionable assumptions about the rightness of weighing total benefit against total cost. This weighing-principle will sometimes have to yield so that the rights of individuals can be acknowledged. (shrink)

Once Apollonius' Conics had been translated from Greek into Arabic, they became a main reference and the principal tool in studying solid problems, algebraic equations of 3rd and 4th degrees, infinitesimal mathematics, etc. Mathematicians of the 9th–10th centuries also studied the conic sections' constructions, as well as their continuous drawing and their drawing by points. Ibrāhīm ibn Sinān, as his grandfather Thābit ibn Qurra, was one of the most active and inventive mathematicians in these fields. Late Hélène Bellosta examined in (...) this article Ibn Sinān's contribution.Une fois les Coniques d'Apollonius traduits en arabe, ces livres sont devenus la référence indispensable et le principal instrument dans l'étude des problèmes solides, des équations algébriques des 3e et 4e degrés, des problèmes des mathématiques infinitésimales, etc. Les mathématiciens des ixe-xe siècles ont également étudié les constructions des sections coniques ainsi que leur tracé par points et leur tracé continu. Ibrāhīm ibn Sinān, comme son grand-père Thābit ibn Qurra, était l'un des mathématiciens les plus actifs et les plus inventifs en ce domaine. Dans cet article, la regrettée Hélène Bellosta a examiné la contribution d'Ibn Sinān.Send article to KindleTo send this article to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle. Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply. Find out more about the Kindle Personal Document Service.DE L'USAGE DES CONIQUES CHEZ IBRĀHĪM IBN SINĀNVolume 22, Issue 1Hélène Bellosta DOI: https://doi.org/10.1017/S0957423911000129Your Kindle email address Please provide your Kindle [email protected]@kindle.com Available formats PDF Please select a format to send. By using this service, you agree that you will only keep articles for personal use, and will not openly distribute them via Dropbox, Google Drive or other file sharing services. Please confirm that you accept the terms of use. Cancel Send ×Send article to Dropbox To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about sending content to Dropbox. DE L'USAGE DES CONIQUES CHEZ IBRĀHĪM IBN SINĀNVolume 22, Issue 1Hélène Bellosta DOI: https://doi.org/10.1017/S0957423911000129Available formats PDF Please select a format to send. By using this service, you agree that you will only keep articles for personal use, and will not openly distribute them via Dropbox, Google Drive or other file sharing services. Please confirm that you accept the terms of use. Cancel Send ×Send article to Google Drive To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about sending content to Google Drive. DE L'USAGE DES CONIQUES CHEZ IBRĀHĪM IBN SINĀNVolume 22, Issue 1Hélène Bellosta DOI: https://doi.org/10.1017/S0957423911000129Available formats PDF Please select a format to send. By using this service, you agree that you will only keep articles for personal use, and will not openly distribute them via Dropbox, Google Drive or other file sharing services. Please confirm that you accept the terms of use. Cancel Send ×Export citation Request permission. (shrink)

RésuméUne fois lesConiquesd'Apollonius traduits en arabe, ces livres sont devenus la référence indispensable et le principal instrument dans l'étude des problèmes solides, des équations algébriques des 3eet 4edegrés, des problèmes des mathématiques infinitésimales, etc. Les mathématiciens desixe-xesiècles ont également étudié les constructions des sections coniques ainsi que leur tracé par points et leur tracé continu. Ibrāhīm ibn Sinān (909–946), comme son grand-père Thābit ibn Qurra (826–901), était l'un des mathématiciens les plus actifs et les plus inventifs en ce domaine. Dans (...) cet article, la regrettée Hélène Bellosta a examiné la contribution d'Ibn Sinān. (shrink)