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Reply to comment on "Kinematic variations across Eastern Cordillera at 24°S (Central Andes): Tectonic and magmatic implications"
No full textWe discuss in detail all the comments made by Petrinovic et al., showing that these are not pertinent to the aim of our study, or based on incomplete information of fault kinematics, or unsupported. Despite our limited amount of data, not any of the raised arguments can be seriously taken into account to alter the proposed scenario. Therefore, we demonstrate that our paper is neither "largely speculative" nor "contains major flaws". In particular, the limited evidence of pre-Miocene deformation on a part of a proto-Eastern Cordillera does not affect our interpretation. In fact, our aim was not to reconstruct the tectonic history of Eastern Cordillera, identifying any pre-Miocene episode. Rather, it was to define the kinematics of the largest structures affecting its recent evolution. Therefore, the interesting structures described by Petrinovic et al., also kinematically poorly constrained, cannot give useful insights, simply because the aim and time frame of our study are different.Fil: Acocella, V.. Università Roma Tre; ItaliaFil: Vezzoli, L.. Università degli studi dell'Insubria; ItaliaFil: Omarini, Ricardo Hector. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; ArgentinaFil: Matteini, Massimo. Universidade do Brasília; BrasilFil: Mazzuoli, R.. Università degli Studi di Pisa; Itali
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
SigMa - Rivista di Letterature comparate, Teatro e Arti dello spettacolo, N. 4 (2020)
No full textSezione monografica I | La rappresentazione della Guerra Fredda nella letteratura e nelle arti (1947-1989), a cura di Andrea Peghinelli e Iacopo Leoni
saggi di Andrea Peghinelli, Giuseppe Episcopo, Alessandro Farsetti, Federico Fastelli, Marta Marchetti, Lorenzo Marmo, Pierpaolo Martino, David Matteini, Massimo Palma, Assunta Scotto di Carlo, Beatrice Seligardi, Sara Sulla
Variations on the Author
Get PDF“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
Constraints on metasomatized mantle under Central South America: evidence from Jurassic alkaline lamprophyre dykes from the Eastern Cordillera, NM Argentina
Get PDFIn the Río Grande Valley, NW Argentina, several porphyritic panidiomorphic, ocelli-bearing dykes and sills intrude the Neoproterozoic to lower Paleozoic basement of the Eastern Cordillera. New petrographical and geochemical data permit us to classify these rocks as ocellar-analcime monchiquites, a feldspar-free variety of alkaline lamprophyre composed of Ti-rich-diopside/augite, Ti-rich biotite/phlogopite, forsteritic olivine, titanianpargasite and analcime, with abundant ocelli filled with analcime/carbonate. In terms of geochemical compositions they are characterized by LILE and LREE enrichment and lack of Nb-Ta and Eu anomalies. The 87Sr/86Sr and 143Nd/144Nd initial ratios range between 0.70377 to 0.70781 and 0.512506 and 0.512716 respectively, and TDM model ages vary between 0.25–0.64 Ga. A K-Ar age of 163±9 Ma suggests that these rocks are related to the pre-rifting stage of the Mesozoic-Cenozoic continental Salta Rift in NW Argentina. Partial melting of a heterogeneous enriched metasomatized lithospheric mantle, magma mixing and fractionation are envisaged to explain the petrographic, geochemical and isotope characteristics of these magmas.Fil: Hauser, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta; Argentina. Universidade Do Brasilia; BrasilFil: Matteini, Massimo. Universidade Do Brasilia; BrasilFil: Omarini, Ricardo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta; ArgentinaFil: Pimentel, Márcio M.. Universidade Federal do Rio Grande do Sul; Brasi
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Tectonic controls on the evolution of the Andean Cenozoic foreland basin: Evidence from fluvial system variations in the Payogastilla Group, in the Calchaquí, Tonco and Amblayo Valleys, NW Argentina
Get PDFThe stratigraphic and sedimentological characteristics of the Payogastilla Group represent important tectono-sedimentary constraints on the evolution of the Andean foreland basin in northwestern Argentina. This nonmarine unit unconformably rests on top of the post-rift deposits of the middle Eocene Lumbrera Formation of the Santa Bárbara Subgroup (Salta Group). Eocene-Pliocene paleoenvironmental changes are a direct result of the tectonic settings and accommodation space. Sequential stratigraphic analysis of the paleoenvironment of the Los Colorados Formation strata indicates the presence of three third-order sequences. Each sequence comprises a low-accommodation systems tract (LAST) and a highaccommodation systems tract (HAST). Substantial tectonic activity from the middle to upper Miocene is represented by Angastaco Formation strata that contain a shallow, gravel-braided fluvial system associated with gravity flows, with thicknesses of 4550 m (Calchaquí River) to 1500 m (Tonco). This activity marked the depocenter of the Angastaco basin. The development of a basal unconformity and the erosion of the Los Colorados Formation suggest a renewed uplift of the source area. Changes in the fluvial systems indicate an increase of the accommodation space. To obtain better temporal constraints on the basin evolution, new UePb ages on zircons from five pyroclastic airfall and two sedimentary levels were determined. A substantial environmental change in the upper Miocene (10e5 Ma) is associated with three episodes of tectonic uplift that are reflected in variations in the sedimentation rates of the Palo Pintado Formation. A reactivated Pliocene tectonic uplift is recorded in alluvial fans that originated from the east.Fil: Galli, Claudia Ines. Universidad Nacional de Jujuy. Facultad de Ingenieria; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Coira, Beatriz Lidia Luisa. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Alonso, Ricardo Narciso. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta; Argentina. Universidad Nacional de Salta; ArgentinaFil: Reynolds, James. Brevard College; Estados UnidosFil: Matteini, Massimo. Universidade Do Brasilia; BrasilFil: Hauser, Natalia. Universidade Do Brasilia; Brasi
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
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