1,721,024 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Modulation of Na/H antiport in erythrocytes of the teleost fish, Oreochromis mossambicus: effect of vasopressin.
No full textkoamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
First record of female germ cells in the testis of a wild Mediterranean northern bluefin tuna Thunnus thynnus L. 1758
No full textThe presence of female germ cells was observed in the central portion of the testis of a
Mediterranean northern bluefin tuna Thunnus thynnus, 2250 mm fork length and 217 kg. This is
the first report of intersex in this specie
Autonomia e identità nei rapporti di Platea con Atene, Tebe e Sparta
No full textFra il VI ed il IV secolo a. C. i Plateesi, pur abitando una località piccola ed in apparenza ininfluente, furono più volte al centro di vicende destinate ad avere ripercussioni decisive per il futuro e per la coesistenza di poleis ed ethne nella penisola ellenica. E i casi di Platea hanno più di una volta consentito, agli autori che ce li conservano, di porre in evidenza proprio le forze che maggiormente possono ostacolare la creazione di assetti e di equilibri stabili.
L’alleanza con Atene nel 519, il modo in cui parteciparono sia alla I sia alla II guerra Persiana, l’assedio e la distruzione della città all’inizio della guerra Archidamica, lo schieramento con Sparta durante la sua egemonia, l’evacuazione degli abitanti nel 373 ad opera di Tebe, lo schieramento con la Macedonia di Filippo II e poi di Alessandro Magno sono infatti momenti e situazioni che si prestano bene ad essere rivisitati con attenzione particolare alla tematica del Convegno.
Il comportamento dei Plateesi può essere utilmente esaminato su due livelli complementari: da un lato per constatare fino a che punto la naturale tendenza di una comunità poleica a difendere la propria identità risultasse destabilizzante sul piano della convivenza fra stati; dall’altro per verificare in quale misura gli abitanti di una polis fossero realmente disponibili a scendere a compromessi sul proprio “spazio di manovra” in favore della creazione di un assetto sovracittadino stabile.
Le loro scelte sembrano avere come obiettivo primario quello di garantire la sopravvivenza della comunità plateese e come denominatore comune il desiderio di restare al di fuori dell’orbita di Tebe: la scelta degli alleati – Atene, Sparta, la Macedonia – che è specchio di situazioni storico-politiche di volta in volta mutate, è abbastanza chiara in proposito. Le testimonianze di Erodoto, Tucidide ed Isocrate, proprio perché non sono meramente agiografiche nei confronti di Platea, ci permettono di cogliere l’esistenza di codici di valutazione delle scelte politiche assolutamente antitetici (la Grecia era un pianeta di antinomie, e non esisteva soltanto quella Atene/Sparta) e di valutare il loro ruolo, non sempre del tutto strumentale, all’interno
Dai casi di Platea mi sembra emerga l’ipotesi di lavoro che il punto conflittuale, l’aspetto non accettabile per tutti, dei progetti e delle aspirazioni politologiche alla concordia generale nel sistema delle poleis fosse proprio l’alto rischio che talvolta questi assetti di pace venissero garantiti (e fossero quindi alla mercé) pur sempre dall’egemonia di una singola realtà statale sulle altre
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