This article revisits a reduced model of cardiac electro-physiology which was proposed to understand the genesis of unidirectional block pathology and of ectopic foci. We underline some specificities of the model from the viewpoint of dynamical systems and bifurcation theory. We point out that essentially the same properties are shared by a simpler system more accessible to analysis. With this simpler system, it becomes possible to give a new presentation of the phenomenon in a phase plane with time moving slow (...) manifolds. This presentation can be of interest both for cardiac electro-physiologists and for mathematicians. (shrink)

The main concern of this paper is to study the dynamic of a predator–prey system with diffusion. It incorporates the Holling-type-II and a modified Leslie–Gower functional responses under Robin boundary conditions. More concretely, we study the dissipativeness of the system by using the comparison principle, and we derive a criteria for permanence and for predator extinction.

Es gehorte zu den Grunduberzeugungen der Aufklarung, dass die Evolution des normativen Bewusstseins - von den archaischen Mythen bis hin zu den neuzeitlichen Ideen von Demokratie und Menschenrechten - einer inneren Logik folgt. Jurgen Habermas hat diese Konzeption in den 1970er Jahren im Rekurs auf Lawrence Kohlberg aufgegriffen. In den letzten Jahrzehnten ist sie allerdings in den Hintergrund getreten - in erster Linie aufgrund des Verdachts, dass sie einer spekulativen Geschichtsphilosophie verhaftet bleibe und eurozentrische Zuge trage. Der Sammelband verfolgt das (...) Ziel, die Tragfahigkeit der Idee einer normativen Entwicklungslogik auszuloten. Mit Beitragen von Micha Brumlik, Hauke Brunkhorst, Klaus Erich Kaehler, Matthias Kettner, Friederike Kuster, Georg Lohmann, Stefan Muller-Doohm und Smail Rapic. (shrink)

Prises dans les rets du conservatisme culturel et religieux comme dans ceux d’un gouvernement totalitaire bannissant toute forme d’organisation de la société civile, il n’est guère surprenant de constater qu’avant 1991 les femmes d’Arabie Saoudite ne pouvaient pas se mobiliser à travers un mouvement associatif pour réclamer des droits légitimes. Jusqu’à tout récemment, les Saoudiennes étaient privées du droit de vote, de la liberté de circulation et du droit d’agir librement sans le consentement de leurs gardiens matrimoniaux. Cet article retrace (...) le parcours et la lutte des femmes saoudiennes afin d’accéder à une pleine citoyenneté et de parvenir à l’indépendance face à la menace d’un conservatisme religieux et culturel profondément ancré dans le canevas socioculturel saoudien. (shrink)

This text examines the socio-professional guidance of Comorian migrants residing on La Réunion Island. It mainly questions the process whereby guidance is constructed as a professional situation. To apprehend the complexity of the process, we have drawn on an ethnographical procedure (Woods, 1990) based on a dual source of data—that of the guide and that of the guided—as well as a micro-sociological approach (Thomas, 1923 ; Goffman, 1993 ; Lapassade, 1997) allowing us to link the concepts of situation definition and (...) conflict in situation definition. Finally, the article mobilizes an intercultural approach (Abdallah-Pretceille, 2003 ; Clanet, 1990 ; Camilleri, 1993) which, in reference to a threefold subjectivist, interactionist and situational perspective, aims to shed light on the dimensions of guidance that are otherness and heterogeneity. Ce texte traite de l’accompagnement socioprofessionnel des migrants comoriens résidant dans l’île de La Réunion. Il questionne principalement le processus de construction de l’accompagnement en tant que situation professionnelle. Pour appréhender la complexité de ce processus, nous avons convoqué une démarche ethnographique (Woods, 1990) privilégiant une double entrée : celle de l’accompagnateur et celle de l’accompagné, une approche microsociologique (Thomas, 1923 ; Goffman, 1993 ; Lapassade, 1997) permettant d’articuler les concepts de définition de la situation et de conflit de définition de la situation et enfin une approche interculturelle (Abdallah-Pretceille, 2003 ; Clanet, 1990 ; Camilleri, 1993) visant à élucider, en référence à une triple perspective : subjectiviste, interactionniste et situationnelle, les dimensions altéritaire et hétérogène de l’accompagnement. (shrink)

Daria Trentini, At Ansha's: Life in the Spirit Mosque of a Healer in Mozambique (New Brunswick, New Jersey: Rutgers University Press, 2021), 246 pp., ISBN: 9781978806696 At Ansha's is a world that speaks for itself, a place-based ethnography that travels in and out of binaries of extension - spatial and idiomatic antonyms that converge in the making of history and the human. Trentini locates her main protagonist, Ansha, as a migrant from Mueda, Cabo Delgado in Nampula, and offers a rich (...) descriptive landscape that tells many stories; notably, Ansha's passage from being under the control of majini (spirits) to becoming a healer - a transition from illness to healing. The ethnography, through Ansha's memory, is situated at the conjuncture of Mozambique's socialist era, FRELIMO and RENAMO's confrontation, and the anti-colonial war. It recognises the aftermath of dispossession and state violence as an open wound. (shrink)

Over the past two decades, the organizational world has shown a particular interest in ethics. The majority of studies and research on the subject of ethics have been conducted within the framework of organizations, considered as a conventional environment; a few studies have, on the contrary, adopted a research framework in a unconventional context. This is the case with our current research on ethics in the academic and university environment in the context of Moroccan universities. As we shall demonstrate influence (...) of the leader, or leadership can lead an individual to engage in deviant behavior as the ethical climate, which also serve as a reference for the behaviors to be adopted. (shrink)

This article is devoted to the characterization of the basin of attraction of pattern solutions for some slow–fast reaction–diffusion systems with a symmetric property and an underlying oscillatory reaction part. We characterize some subsets of initial conditions that prevent the dynamical system to evolve asymptotically toward solutions which are homogeneous in space. We also perform numerical simulations that illustrate theoretical results and give rise to symmetric and non-symmetric pattern solutions. We obtain these last solutions by choosing particular random initial conditions.

Karl-Otto Apel und Jurgen Habermas haben die Diskursethik gemeinsam als neues Paradigma der praktischen Philosophie konzipiert. Es blieb Work in Progress. Beide Autoren setzten von Anfang an unterschiedliche Akzente und erhoben gegen die diskursethischen Entwurfe des jeweils anderen weitreichende Einwande. Habermas halt Apels Anspruch auf Letztbegrundung ethischer Grundnormen fur uneinlosbar. Er stellt Apels starkem Apriorismus seine Konzeption der "detranszendentalierten" Vernunft gegenuber, die in historisch-kulturellen Lebensformen situiert ist. Habermas vertrat bis zum Ende der 1980er Jahre die These, dass in der Gattungsgeschichte (...) eine Entwicklungslogik der Normativitat wirksam sei, die zum Moral- und Rechtsverstandnis der neuzeitlichen Aufklarung hinfuhre. Apel hat sich dieser Position angeschlossen. Habermas selbst problematisiert sie jedoch in seinem diskursethischen Hauptwerk "Faktizitat und Geltung" (1992) mit dem Argument, sie gerate in die Nahe geschichtsphilosophischer Spekulation. Seine diskursethische Rechtstheorie in Faktizitat und Geltung versteht sich als "Bedeutungsexplikation" der Institutionen und Diskursformen moderner Demokratien. Nach Apel lauft dies auf die Preisgabe universalistischer Begrundungsanspruche der Diskursethik hinaus. Die Monographie zeichnet die vielschichtige Auseinandersetzung zwischen Apel und Habermas mit dem Ziel nach, eine vermittelnde Position herauszuarbeiten, die die Idee einer normativen Entwicklungslogik rehabilitiert und in dieser Perspektive die historische Genese normativer Geltung rekonstruiert. (shrink)

Kierkegaards Hegel-Kritik ist fast durchgängig als religiös motivierte Absage an das spekulative Denken aufgefasst worden. Dies entspricht Kierkegaards Selbstdeutung in seinen autobiographischen Schriften, läuft jedoch der Rezeption von Entweder/Oder durch zeitgenössische Hegelianer zuwider. Das vorliegende Buch interpretiert die in Entweder/Oder entwickelte Ethik als eigenständigen Beitrag zur praktischen Philosophie des Deutschen Idealismus: als Restitution der Moralität auf dem Boden der Sittlichkeit. Kierkegaards Kritik an der Ethik Kants zielt auf ihre rigoristischen Tendenzen, seine Kritik an der Rechtsphilosophie Hegels auf deren systematische Verklammerung (...) mit Hegels Logik. (shrink)

Modern philosophy; philosophical terms; scienctific terms; Turkish language; Turkey; history.

This collection of essays analyzes a systematic question: To what extent does Kierkegaard fall back upon positions of Fichte in his dispute with Hegel? The contributions explore this question, beginning with Kierkegaard's dissertation On the Concept of Irony to The Sickness unto Death. The thematic spectrum ranges from the theory of self-consciousness and the basis of ethical reflection to the anthropological basis of religion. The elucidation of the systematic relationships between Kierkegaard and Fichte has led to a revision of the (...) prevalent views on the philosophy between Hegel and Kierkegaard. (shrink)

Salafism is one of the most important issues of the last few centuries. There are intense discussions on the issues related to Salafism, its emergence, how it was first used by whom and in what sense. Discussions about Salafism are sometimes experienced in relation to whether this concept corresponds to a mentality or to a sect, and sometimes this phenomenon is brought up in relation to a number of important names that have taken place in the history of Islamic thought. (...) Ibn Taymiyya (d. 728/1328) emerges as the most frequently mentioned name in this context. Therefore, in this article, we have examined how Salafism/Salafiyya concept is used in the works of Ibn Taymiyya who is accepted as the theorist and the most powerful representative of Salafism. We have discussed the issue in a comprehensive manner by including the concept of Salaf, which is one of the most used concepts of Ibn Taymiyya. When we consider Ibn Taymiyya's use of the concepts of Salaf and Salafiyya, the concept of Salaf is seen to be used much more than the concept of Salafiyya. Thus, the concept of Salaf in the thought of Ibn Taymiyya refers to the Islamic society that lived in the early centuries and the conception of religion revealed by this society. The concept of Salafiyya, however, appears to have been used in a way that reflects a mentality and a way of thinking rather than a particular school or sect.Summary: Sects are human made structures that emerged with the institutionalization of differentiations in the conception of religion. The production of systematic theology and fiqh, the formation of its own literature, its dissemination and dissociation from other systems of thought are the most important turning points for the emergence of sects. One of the most important variables that determine the formation process of sects is the mentality of sect. It is known that the sects come into the realm of existence when the mindsets with the implicit reference system become visible. Therefore, there is a mentality on which every sect is based, but not every mentality has come to the point of being a sect. While some mentalities have influenced different sects in different shades, some of them have been confronted with only one sect.In fact, Salafism is one of the ways of thinking which is a mindset and it is a subject of important debates about whether it is a sect. Although the use of salafiyya is seen in the literature in the past, the fact that Salafism felt its existence as a kind of religion or mentality was realized in the 18th and 19th centuries. It is also known that the discussions about the definition of Salafism have started since these periods. From the second half of the 20th century, Salafism began to take a place in the agenda of both the Islamic world and the West. This has naturally led to efforts to define Salafism. Thus, Salafism is subjected to attempts to identify and associate with structures, such as denomination, ideology, religious understanding and mentality. In this direction, it is seen that Salafism is tried to be defined by establishing close link with the structures, such as Ahl al-Sunnah, Ahl-i Hadith, Hanbalism and Wahhabism or by reducing them directly to one of these structures. Thus, Salafism is sometimes backed up to the early stages of Islamic thought and sometimes associated with multilayered structures, such as the Ahl al-Sunnah, which embodies many political-mythic and fiqh structures.In line with the efforts of defining Salafism, it is also seen that many names that have had a say in classical Islamic thought or have been mentioned in modern times have been brought to the agenda. In addition to the names, such as Ahmad ibn Hanbal, Ibn Taymiyya, Ibn Qayyim al-Jawziyya, the names of Emir al-Saneyani, Muhammad ibn Abd al-Wahhab, Muhammad al-Shawkani, Shaykh Abdulaziz ibn Baz and Muhammad Nasir al-din al-Albani are frequently mentioned in this process. It should be noted that there is a special place of Ibn Taymiyya among these names. Ibn Taymiyya took the place of both in history of Islamic thought and Ahl al-Hadith-Hanbalite tradition and made a name for himself in the context of many subjects. It is claimed that Ibn Taymiyya, who was the theorist of the Hanbalite conception of religion, and the missionary of the New Hanbalism, was also the founding figure and the most important representative of Salafism. In modern times, most of those who declare ideas about Salafism place Ibn Taymiyya at the center of Salafism and present him as the founding name of this mentality. However, the question of what kind of relationship between the mentality called Salafism and Ibn Taymiyya's world of thought and religion is not the subject of academic studies. However, the works of Ibn Taymiyya, who is an author of a very velocity, should be analyzed from this point of view and all kinds of words about Ibn Taymiyya-Salafism relationship should be left behind this effort. Our study, which aims to fulfill this gap, was designed to explain topics, such as whether the concept of salafiyya was used in the works of Ibn Taymiyya, whether and how the past was used, and the extent to which the meaning attributed to the salafiyya coincided with the current Salafism. Understanding of the concept of the salafiyya in the works of Ibn Taymiyya depends on the explanation of how the term salaf was derived and used by Ibn Taymiyya. When the works of Ibn Taymiyya are scanned, it is seen that he used the word salaf much more than the word salafiyya. In fact, the word of salafiyya, which Ibn Taymiyya has rarely included, has been placed in some places in a way that refers to the meaning field of the word salaf. When we consider the use of the word salaf in the works of Ibn Taymiyya, we first see the generations who lived in the early historical periods of Islamic thought and the conception of religion which these generations have revealed. Other names that have taken place in the history of Islamic thought have similar opinions about the generation of the predecessors and the religious understanding of this generation. In other words, according to the general opinion of the predecessor, especially the first three centuries came to mind. However, it is seen that Ibn Taymiyya made some attempts to periodize both the generation of the predecessors and to define the understanding of religion of this generation. Nevertheless, Ibn Taymiyya could not provide a clear picture on this issue, and he occasionally contradicted his findings regarding his involvement in the predecessor generation. Nevertheless, he generally adopted generalizations and an attitude to limit the meaning of the predecessor to the first generations. The word salafiyya, which Ibn Taymiyya placed on the meaning of the word salaf, is used less compared to the word salaf and is given in more complete terms. This indicates that the main factor that influenced Ibn Taymiyya's salafi thought was salaf, not salafiyya as a systematic structure. These findings make it necessary to reconsider the claims of Salafism being a sect and it is being represented at the time of Ibn Taymiyya. (shrink)

The imsāk time, which was declared by adding the tamkīn time to the time when the sun was 19 degrees below the horizon until 1982, was changed to -18 degrees as of 1983 with the new application of the Presidency of Religious Affairs, and the tamkīn practice was completely abolished. The change decision, which caused heated discussion and confusion in the public, caused some criticism and accusations to the Turkish Presidency of Religious Affairs. In particular, it is seen that criticism (...) focus on two issues: The first is whether the moment when the enlightenment of sun first appears or the moment when it spreads well will be taken as the basis for determining the al-fajr al-sādiq, which is the beginning time of fasting. The second is whether the altitude angle of the sun will be -19 degrees or -18 degrees in determining the al-fajr al-sādiq. According to the claimers, on both issues, Islamic scholars prefer the first view, while European Christian astronomy scholars prefer the second view. The Presidency of Religious Affairs, on the other hand, abandoned the view of Islamic scholars and adopted the view of Christians. This article deals with the examination, analysis and criticism of the criticism made by Prof. Dr. Ahmet Şimşirgil about the change in the beginning of the fast and also expressed by some calendar makers. The aim of the study is to determine whether the arguments put forward in the criticisms expressed by the claimants are correct. In other words, this study deals with the criticism of the criticisms directed at the change in the time of imsāk. In the study, whether the of the parties to the relevant decision of the Presidency of Religious Affairs and the evidence they put forward overlap with the information in the basic fiqh (Islamic jurisprudence) and astronomy works, based on text analysis, is discussed in a comparative way. There is no consensus among the scholars of fiqh and astronomy on the both issues according to the obtained results, and the evidence put forward for the criticism does not prove the claims. The research is important in terms of making a critical contribution to the current imsāk debates, which occupy a large part of the society, and placing the discussions on a scientific basis. (shrink)