1,720,960 research outputs found
La sequenza archeologica di Barbiano-Caserma dei Vigili del Fuoco (Bolzano): evidenze di sistemazioni dei versanti durante il Neolitico.
No full textA sagging along the eastern Chianti Mts., Italy
No full textA deep-seated gravitational slope deformation (DGSD) affects the eastern side of the Chianti Mts. Ridge. It
develops in an N−S to NW−SE direction and is N10 km wide and 3-4 km long. This area corresponds to the
eastern side of a main antiform, characterised by east-verging folds and thrusts involving bedrock of the
Mesozoic−Paleogene Tuscan Units, particularly sandstones containing interlayered highly fractured and
deformed Ligurian rocks (shales and limestones with olistostromes). The foot of the slope is characterised by
tilted Plio-Pleistocene deposits unconformably sealing the bedrock structures as folds, thrusts and faults. The
most significant morphological features are a main escarpment, trenches, several secondary and counter-slope
escarpments that together indicate large-scale gravitational phenomena. The main escarpment is responsible
for the headward retreat of the slope, and is deeply segmented by numerous arcuate niches that reveal
differential movements of single blocks. The DGSD is also dissected by SW−NE trending streams that often
deepen inside the N−S trenches. Minor landslides due to local instability are also present. At the foot of the
slope, the older continental Pliocene deposits of the Upper Valdarno Basin crop out. Although tilted by tectonic
movements, the deposits have not been severely affected by gravitational deformations. This indicates that the
movement is a typical sagging, a large landslide at an embryonic stage, affecting the upper part of the slope but
not reaching the valley bottom. The deformations are absorbed in the rock mass which is also partially drained
by stream incision that prevents high pore pressure. The occurrence of down-slope and down-movement
facing escarpments and up-slope and up-movement facing counter-slope escarpments indicate a sagging
characterised by a listric spoon-shaped geometry. The DGSD has a style similar to crustal extensional tectonics
such as Morton and Black's crustal attenuation model. Although few chronological indications of movements
are present, the fact that Late Pleistocene debris deposits, widespread in the northern and central Apennines,
are not found at the contact between the escarpment and the trenches suggests a post-glacial activity for at
least part of the movements. Recognizing embryonic-stage collapse is of primary importance in assessing
geological hazard and risk because rapid evolution and collapse could follow
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
koamabayili/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
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