186,335 research outputs found
André Darbon, Les catégories de la modalité. Publié par Madeleine Lagarce-Darbon
No full textFeys Robert. André Darbon, Les catégories de la modalité. Publié par Madeleine Lagarce-Darbon. In: Revue Philosophique de Louvain. Troisième série, tome 55, n°45, 1957. p. 123
André Darbon, Les catégories de la modalité. Publié par Madeleine Lagarce-Darbon
No full textFeys Robert. André Darbon, Les catégories de la modalité. Publié par Madeleine Lagarce-Darbon. In: Revue Philosophique de Louvain. Troisième série, tome 55, n°45, 1957. p. 123
Dominique Darbon et Michel Foucher (dir.). L'Afrique du Sud, une puissance utile ?
No full textGounin. Dominique Darbon et Michel Foucher (dir.). L'Afrique du Sud, une puissance utile ?. In: Politique étrangère, n°4 - 2001 - 66ᵉannée. p. 1012
Darbon (Sébastien). Rugby, mode de vie. Ethnographie d'un club Saint-Vincent-de-Tyrosse
No full textPiette Albert. Darbon (Sébastien). Rugby, mode de vie. Ethnographie d'un club Saint-Vincent-de-Tyrosse. In: Archives de sciences sociales des religions, n°96, 1996. p. 149
Cholinergic control of membrane conductance and intracellular free Ca2+ in outer hair cells of the guinea pig cochlea
No full textWe have studied the action of cholinergic agonists on outer hair cells, both in situ and isolated from the cochlea of the guinea pig, combining new fast CCD technology for Ca2+ imaging and conventional patch-clamp methods. Carbachol (1 mM) activated a current with a reversal potential near -70 mV and a bell-shaped I-V curve, suggesting that it was a Ca2+-activated K+ current. In a few cells, this current was preceded by a transient inward current, probably owing to an influx of Ca2+ and other cations through the acetylcholine (ACh) receptors. The amplitude of the Ca2+ signal was maximal in a circumscribed region at the basal pole of the cell and decreased steeply towards the apical pole, compatible with Ca2+-influx and/or Ca2+-induced Ca2+-release at the cells base. The time course of the Ca2+-rise was fastest at the base, but it was still slightly slower, and more rounded, than that of the K+ current. In some recordings the K+ current was observed without any measurable change of intracellular Ca2+. The K+ current was potentiated (18%) by caffeine (5 mM), and decreased (19%) by ryanodine (0.1 mM) in the majority of cells tested. The results are discussed in terms of a labile intracellular Ca2+ store located at the base of the cell, close to the Ca2+-permeable ACh receptor channels and Ca2+-activated K+ channels, whose contribution to the Ca2+ rise occurring in the region of the channels is variable, and probably dependent on its ability to refill with Ca2+
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Emerging network activity in dissociated cultures of neocortex: novel electrophysiological protocols and mathematical modelling
No full textGoing 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
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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