1,721,086 research outputs found
A new record of Coralliophila monterosatoi (Locard, 1897) (Gastropoda, Muricidae) in Avilés Canyon (Bay of Biscay)
Full text link(short note with no abstract
Coralliophiline diversity at mid-Atlantic seamounts (Neogastropoda, Muricidae, Coralliophilinae)
No full text
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
Palaeoenvironment changes during the Messinian Lago-Mare event in the Malaga Basin (S Spain).
No full textAppropriate 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
Messinian Lago-Mare deposits near the Strait of Gibraltar (Malaga Basin, S Spain)
No full textA new stratigraphic unit (named LM unit) located at the base of the Pliocene marine succession in the eastern
sector of the Malaga Basin has been distinguished. This unit is composed of two fining-upward sequences
bounded by a discontinuity related to synsedimentary tectonic activity. Both sequences are made up of basal
alluvial deposits overlain by subaquatic deposits. The lower sequence contains rich mollusc faunas
characterized by bivalves Lymnocardiinae and Dreissenidae of Paratethyan origin, and non-marine gastropods,
typical of oligo-low mesohaline shallow waters, and low diversified ostracod faunas of Paratethyan
origin (Loxocorniculina djafarovi, Tyrrhenocythere pontica, Euxinocythere (Maeotocythere) praebaquana and
Amnicythere propinqua) typical of low mesohaline waters. Alternances of monospecific ostracod assemblages
made of Cyprideis agrigentina or oligotypic assemblages made of C. agrigentina and Loxoconcha spp. and richer
assemblages made of L. djafarovi accompanied by several Amnicythere spp. and Camptocypria sp.1 characterize
the upper sequence, pointing to more unstable environment affected by salinity and depth changes. Some
samples collected from this upper sequence yielded rare, planktonic and benthic foraminifera, which could
suggest the sporadic establishment of quasi-normal marine conditions in the westernmost Mediterranean
during the deposition of this sequence. The palaeontological data and the palaeomagnetic results obtained
in both the LM unit and the overlying Pliocene marine sediments restrict the age of the former to the postevaporitic
late Messinian. The age and the environmental conditions correlate these deposits with the Lago-
Mare event occurring throughout the Mediterranean before the quick and widespread marine flooding of the
Mediterranean at the beginning of the Pliocene
Organizational and institutional approaches : social movement studies perspectives on political violence
No full textIn this chapter we take a closer look at organizational and institutional approaches that study political violence from a social movement studies (SMS) perspective. The first section discusses the way “classic” approaches—such as those focusing on resource mobilization theory (RMT) and political opportunity structures (POS)—have been applied to the study of political violence. In the subsequent section we present a relational approach, focusing on organizational dynamics and inter-organizational interactions, as well as suggesting mechanisms that shape processes of conflict escalation or de-escalation, in three different arenas of interactions: between armed groups and the state; intra-movement and movement–counter-movement; organizational dynamics of armed group
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
- …
