171,827 research outputs found
8. Cinétique des leff-s Takna, flexibilité et mobilité sociale
No full textAu pays Takna, composé d’une partie semi-nomade et d’une partie nomade, deux leff-s se répartissent l’espace de manière inégale selon l’orientation nord-sud. Dans la partie villageoise, alors que cinquante-trois villages se réclament en 1934 du leff Ayt ʻUtman de l’est, seuls treize regroupés pour la plupart au pied de la montagne (Tasrirt) des Ayt Ba ʻAmran appartiennent au leff Ayt Aj-Jmal de l’ouest (F. C. La Chappelle, 1934 : 2425-40-41). Ce leff longe partant de là la côte atlantique jus..
Gordon Leff, Heresy in the Later Middle Ages, The Relation of Heterodoxy to Dissent, c. 1250-c. 1450, 1967
No full textRapp Francis. Gordon Leff, Heresy in the Later Middle Ages, The Relation of Heterodoxy to Dissent, c. 1250-c. 1450, 1967. In: Revue d'histoire et de philosophie religieuses, 51e année n°1,1971. pp. 95-96
Gordon Leff, Heresy in the Later Middle Ages, The Relation of Heterodoxy to Dissent, c. 1250-c. 1450, 1967
No full textRapp Francis. Gordon Leff, Heresy in the Later Middle Ages, The Relation of Heterodoxy to Dissent, c. 1250-c. 1450, 1967. In: Revue d'histoire et de philosophie religieuses, 51e année n°1,1971. pp. 95-96
Rethinking rhetorical theory, criticism, and pedagogy: the living art of Michael C. Leff
No full textWhat distinguishes the study of rhetoric from other pursuits in the liberal arts? From what realms of human existence and expression, of human history, does such study draw its defining character? What, in the end, should be the purposes of rhetorical inquiry? And amid so many competing accounts of discourse, power, and judgment in the contemporary world, how might scholars achieve these purposes through the attitudes and strategies that animate their work? Rethinking Rhetorical Theory, Criticism, and Pedagogy: The Living Art of Michael C. Leff offers answers to these questions by introducing the central insights of one of the most innovative and prolific rhetoricians of the twentieth century, Michael C. Leff. This volume charts Leff \u27s decades-long development as a scholar, revealing both the variety of topics and the approach that marked his oeuvre, as well as his long-standing critique of the disciplinary assumptions of classical, Hellenistic, renaissance, modern, and postmodern rhetoric. Rethinking Rhetorical Theory, Criticism, and Pedagogy includes a synoptic introduction to the evolution of Leff \u27s thought from his time as a graduate student in the late 1960s to his death in 2010, as well as specific commentary on twenty-four of his most illuminating essays and lectures
G. Leff. Heresy in the Later Middle Ages. The Relation of Heterodoxy to Dissent 1250-c. 1450
No full textJolivet Jean. G. Leff. Heresy in the Later Middle Ages. The Relation of Heterodoxy to Dissent 1250-c. 1450. In: Revue de l'histoire des religions, tome 175, n°1, 1969. pp. 71-74
G. Leff. Heresy in the Later Middle Ages. The Relation of Heterodoxy to Dissent 1250-c. 1450
No full textJolivet Jean. G. Leff. Heresy in the Later Middle Ages. The Relation of Heterodoxy to Dissent 1250-c. 1450. In: Revue de l'histoire des religions, tome 175, n°1, 1969. pp. 71-74
Leff – an institution of custom law in the medieval Maghreb
No full textLeff to instytucja prawa zwyczajowego stosowana do zawierania sojuszy i aliansów
politycznych. Przyjmuje się że powstała ona w okresie wczesnego średniowiecza w XI w. n.e. Autor
artykułu wykazuje, że dzięki analizie tekstu źródłowego z kroniki el- Bekriego można znaleźć na
obszarze istniejącego we wczesnym średniowieczu emiratu Nekôr ślady stosowania tego prawa
zawierania sojuszy już w IX w. n.e.Leff is the institution of custom law which was applied to conclude political partnerships
and alliances. It is assumed that it was established in the early Middle Ages in the 11th c. AD.
The author of the article demonstrates that thanks to an analysis of a source text from al-Bakri
one may find traces of the use of this law of concluding alliances as early as in the 9th c. AD in the
Nekôr emirate that existed in the early Middle Ages
The XENON100 exclusion limit without considering Leff as a nuisance parameter
No full text10 pages;, 9 figures; references addedInternational audienceIn 2011, the XENON100 experiment has set unprecedented constraints on dark matter-nucleon interactions, excluding dark matter candidates with masses down to 6 GeV if the corresponding cross section is larger than 10^{-39} cm^2. The dependence of the exclusion limit in terms of the scintillation efficiency (Leff) has been debated at length. To overcome possible criticisms XENON100 performed an analysis in which Leff was considered as a nuisance parameter and its uncertainties were profiled out by using a Gaussian likelihood in which the mean value corresponds to the best fit Leff value smoothly extrapolated to zero below 3 keVnr. Although such a method seems fairly robust, it does not account for more extreme types of extrapolation nor does it enable to anticipate on how much the exclusion limit would vary if new data were to support a flat behaviour for Leff below 3 keVnr, for example. Yet, such a question is crucial for light dark matter models which are close to the published XENON100 limit. To answer this issue, we use a maximum Likelihood ratio analysis, as done by the XENON100 collaboration, but do not consider Leff as a nuisance parameter. Instead, Leff is obtained directly from the fits to the data. This enables us to define frequentist confidence intervals by marginalising over Leff
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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