1,723,503 research outputs found
CIL:9303
This group of micrographs illustrate the ultrastructural characteristics of the middle layer of the three meningeal layers that cover the central nervous system The arachnoid cells contain abundant intermediate filaments that occupy a substantial volume of the cytoplasm. In some cells the intermediate filaments are organized into numerous coils of relatively uniform size and lie parallel to the outer surface of the central nervous system, such that sections cut tangential to the membrane surface (see CIL:9301) show the spirals but transverse sections such as this one do not. The plasma membrane of these cells has many caveolae. Adjacent arachnoid cells are connected by large desmosomes.
Images were recorded using a Philips EM301 TEM at 80 kv. Original glass plates were scanned and digitized using an Epson V750 flatbed scanner with a step size of 15 micrometers.
This group of images complement those published in the reference below.
Reference: Michaels, JE, Tornheim, PA. Cell Tissue Res. 236:693-697 (1984)
Epinici in distici di età ellenistica. Una composizione sul pugilato? Nota su PSchubart 13 (OBerol 9303)
Philological and historical commentary on the Hellenistic ostrakon P.Schubart 13 = O.Berol. 9303, possibly preserving traces of a description of a boxing competition (epinikion? mythological narrative?
California Poll: 9303 -- August 12-18, 1993
The Field Poll, established in 1945 as The California Poll by Mervin Field, has operated continuously as an independent, non-partisan, media-sponsored public opinion news service. Each year the Field Polls cover a wide range of political and social topics examining California public opinion. Continuing measures are made of voter support for leading political figures vying for major state and federal offices, job ratings of important political figures and reactions to significant political events. Voter awareness, understanding and predispositions of major campaign issues and salient statewide ballot propositions are also tracked over time. For poll 9303 N=1045
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
Hannover CL II 9303/17, Light Two-seat Armed Fighter, Escort and Close Support Airplane
Plan starboard side view of Hannover CL II 9303/17. Airplane parked on aerodrome Les Baragues of Fliegerabteilung 298. Aircraft in background ready for take-off, with people working. Image displayed (72 dpi JPEG), Master image (300 dpi TIFF)
From Pedrolino to a Pierrot: The Origin, Ancestry and Ambivalence of the British Pierrot Troupe
In this article, the author considers the British development of the seaside Pierrot troupe, arguing that its construction is consistent with the notion of invented tradition, and the associated concerns with identity and nationality. Tracing the history of the character from its origins as Pedrolino in the commedia dell’arte, the article considers the traditional and novel elements of the British form. This also allows a brief account of the origin and aesthetics of the British tradition. Reflecting on the synthesis of the archaic and contemporary dimensions of the form, the author proposes that the new structure constructed an ambivalent class of character. The composition of both troupes and audiences was drawn from across the range of social strata. Through its collectivity and its treatment of contemporary social themes, it is argued the British Pierrot troupe approached and negotiated questions of a cultural and national identity in the late-Victorian period.
Dave Calvert is a Senior Lecturer at the University of Huddersfield, UK. His research
interests include street theatre, Applied Theatre and learning disabled
performance. He is also a member of The Pierrotters, the last remaining seaside
Pierrot troupe
Variations on the Author
“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
We 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
Breaking Unlinkability of the ICAO 9303 Standard for e-Passports using Bisimilarity
peer reviewedWe clear up confusion surrounding privacy claims about the ICAO
9303 standard for e-passports. The ICAO 9303 standard includes a Basic Access
Control (BAC) protocol that should protect the user from being traced from one
session to another. While it is well known that there are attacks on BAC, allowing
an attacker to link multiple uses of the same passport, due to differences in implementation; there still remains confusion about whether there is an attack on unlinkability directly on the BAC protocol as specified in the ICAO 9303 standard.
This paper clarifies the nature of the debate, and sources of potential confusion.
We demonstrate that the original privacy claims made are flawed, by uncovering attacks on a strong formulation of unlinkability. We explain why the use of
the bisimilarity equivalence technique is essential for uncovering our attacks. We
also clarify what assumptions lead to proofs of formulations of unlinkability using weaker notions of equivalence. Furthermore, we propose a fix for BAC within
the scope of the standard, and prove that it is correct, again using a state-of-the-art
approach to bisimilarity
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