1,354,450 research outputs found
[catalog] Catalogue de la bibliothèque de feu M. Burette, medecin de la faculté de Paris ......
No full textGeannoteerd met prijzen"Memoire sur la vie et les ouvrages de M. Burette": p. [viii]-xxx.10,191 titles, classified; followed by an author index.Bijzondere collectiesEuropeana-GoogleBooksLammens, Pierre Philippe Constan
Burette quiz
No full textThis resource comprises a very simple quiz on reading volumes in a burette. It was funded by the LSN as part of the Q projects programme. The resource was designed and produced by Regent College.
Light microscopic identification and immunocytochemical characterization of glutamatergic synapses in brain sections.
No full textABSTRACT
Presynaptic proteins are readily identified by light microscopic immunocytochemistry, but
immunodetection of postsynaptic proteins in brain sections proves difficult. We performed immunofluorescent
double labeling for the NR1 subunit of the N-methyl-D-aspartate receptor
(NMDAR) and the vesicular glutamate transporter 1 (VGLUT1). In material fixed with 4%
paraformaldehyde, NMDAR staining in somatosensory cortex was restricted to the section
surface, whereas presynaptic staining extended deeper into the tissue. Staining for postsynaptic
proteins was enhanced in weakly fixed material and in tissue treated with pepsin, as previously
reported, but tissue quality was impaired. Staining was also markedly enhanced, and without
impairment of tissue quality, by treatment during perfusion with a mixture of inhibitors of
proteases and the ubiquitin/proteosome system. We performed quantitative analysis of confocal
images to study how immunostaining varies with depth into the tissue. Virtually all puncta
immunopositive for VGLUT1 colocalized with synaptophysin puncta; these presynaptic puncta
were most numerous 1–2 mbeneath the section surface. In contrast, puncta immunopositive for
the NR1 subunit were most numerous at the surface, as were puncta immunopositive for the NR2
subunit, SynGAP, and CaMKII. Punctate staining for all postsynaptic proteins, but not presynaptic
markers, was substantially enhanced in material pretreated with antiproteolytic agents.
The large majority of NR1-positive puncta at the surface associated with VGLUT1 in this
material are likely to represent synaptic contacts. Approximately eighty-five percent of VGLUT1-
positive puncta in layers II–III of SI are associated with NR1-positive puncta, and 80% are
associated with NR2, SynGAP, and CaMKII. This approach may permit systematic analysis of
the chemistry of glutamatergic synapses with light microscopic immunocytochemistry
Banville – Éperon de la Burette
No full textDate de l'opération : 2007 (FP) Inventeur(s) : Kerdivel Gwenolé (BEN) Suite aux travaux effectués en 2005 sur le même site, qui avaient permis de dater deux tronçons de fossés du Néolithique moyen et du premier âge du Fer, une fouille programmée de trois semaines a été menée sur l’éperon de la Burette à Banville afin de préciser la chronologie générale du site (Fig. n°1 : Vue aérienne). La superficie décapée (environ 800 m2) a été placée immédiatement au sud du sondage de 2005. Cette fouille..
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
Analysis of accuracy of burette in determination of surface tension of liquids and study of its variation with detachment time and inclination angle
No full textA simple laboratory experiment to measure the surface tension of liquids has been proposed in this work, which is well suited for any undergraduate laboratory demonstration. Burette with modified Tate’s law has been found to return surface tension values as good as those obtained using Traube’s stalagmometer. Experimental data and error analysis show similar result accuracy. Also, a comparative study brings to notice the exactitude of drop weight method over drop number method, both from stalagmometer and burette. The rate of flow of 11–23 drops per minute has been found to be highly suitable for minimization of errors due to evaporation and satellite drop formation. Angular dependence of surface tension has been proposed numerically and validated for the respective case with the angle of 0° to deviate the least from literature value. The results obtained in this study are synchronous with the established theoretical understanding of the concept
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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
Disertaciones de la Academia Real de Inscripciones y Buenas Letras de París : Tomo II
No full textContén: Sobre el Oráculo de Delfos (Tercera Disertación), por M. Hardion (Ardion) - Sobre los Atletas, por M. Burette (Tres Disertaciones) - Sobre la Sinfonía de los Antiguos, por M. Burette - Sobre los efectos atribuidos a la música por los antiguos, por M. Burette - Sobre el origen de las letras griegas, por el Abate Reanaudot (Dos disertaciones) - Sobre la felicidad del hombre según los sabios del Paganismo, por el Abate Anselme - Sobre el oro y la plata (por M. Morin) - Sobre la forma y construcción del Teatro de los Antiguos, por M. Boindin - Historia de las Vestales (Cuatro disertaciones), por el Abate Nadal - Disputa de los Filósofos del siglo XV, por M. Boivin el menor - Sobre los dioses o Pataicos, por M. Morin - Sobre los Dioses de Homero, por el Abate Fraguie
AN AUTOMATIC BURETTE FOR THE DELIVERY OF GAS AT CONSTANT PRESSURE
No full text An apparatus has been built to control automatically the addition of gas, from a gas burette, to a system maintained at constant pressure. A phototube-relay, actuated by the mercury level of a manometer connected to the system, acts as the control mechanism for the gas input. </jats:p
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