1,721,317 research outputs found
Coalescence of fault-bend and fault-propagation folding in curved thrust systems: An insight from the Central Apennines, Italy
No full textThe coalescence and spatial variability of different thrust-related folding mechanisms involving the same mechanical multilayer along a curved thrust system are documented in this study. The field-based analysis of thrust-related folds spectacularly exposed in the Gran Sasso thrust system, Central Apennines of Italy, allowed us to reconstruct the interference fold pattern between fault-bend and fault-propagation folding. These two thrust-related folding mechanisms exhibit spatial variability along the differently oriented ramps of the curved Gran Sasso thrust system, passing from one style to the other. Their selective development is controlled by contrasting styles of compressional normal-fault reactivation related to positive tectonic inversion. Fault-bend and fault-propagation folding interact with a characteristic interference fold pattern in the salient apex zone of the curved thrust system due to their synchronous/in-sequence growth. This interference fold pattern might be helpful and predictive when reconstructing lateral variations in different thrust-related folds in similar subaerial or submarine thrust belts
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
Structural inheritance in two circum-Mediterranean fold-and-thrust belts: Preliminary results from a comparison
No full textCAREER DECISION SELF EFFICCY SCALE: SHORT-FORM: UNO STUDIO PER L'ADATTAMENTO ITALIANO
No full textLa scelta scolasticoprofessionale
è un compito decisionale complesso e per
la sua gestione un ruolo significativo viene assunto dalle credenze di efficacia nelle proprie
capacità decisionali. La Career Decision SelfEfficacy
Scale – Short Form (CDSESSF)
messa a punto da Betz e Taylor (2000) è uno degli strumenti più utilizzati nel panorama
internazionale proprio per analizzare l’autoefficacia nei confronti di tali capacità. In
considerazione di ciò, pur esistendo in Italia anche altri strumenti che possono essere
utilizzati per approfondire le credenze di efficacia sperimentate dagli adolescenti che si
approcciano al compito di career decisionmaking,
si è deciso di analizzare i requisiti
psicometrici della CDSES, nella sua versione breve. I risultati conseguiti ci permettono di
affermare che questo strumento presenta adeguati requisiti in presenza di adolescenti che
stanno frequentando le ultime classi delle scuole superiori e può essere utilizzato in sede
di valutazione e per progettare interventi
Shear zone fabrics and their significance in curved, inverted basin-derived thrust systems
No full textIn this study, we report how criteria inferred from structural and kinematic analysis of shear zone fabrics can be instrumental in deciphering events of positive or negative inversion tectonics. Mesoscopic structural and kinematic analyses are performed on well-exposed brittle-ductile thrust shear zones within curved thrust systems in the Central-Northern Apennines of Italy. The structural and kinematic features of thrust-related tectonites make it possible to outline a history of positive inversion. S/C- and S-tectonites/fabrics are distinctive of frontal or oblique thrust ramps, respectively. In particular, S-fabrics result from selective transpressional-reactivation of pre-thrusting normal faults. By contrast, more complex composite fabrics, characterized by folded cleavage, reveal a history of negative inversion tectonics. Mesocopic cleavage folding is ascribed to shear-sense reversal along the shear surfaces during extensional reactivation of pre-existing thrusts; or to synthetic reactivation by listric foreland-dipping normal faults, merging downwards on former thrust surfaces during protracted episodes of gravitational collapse. Shear zone fabrics identification criteria, here illustrated from thrusts of different size, if systematically used, may be diagnostic of different deformation paths, and hence provide useful tools to elucidate the tectonic history of curved thrust systems in orogens that have experienced multiple episodes of inversion
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
- …
