1,720,970 research outputs found
Upper crust "boudinage" during post-collisional Miocene extension in Tuscany: Insights from the southern part of the Larderello geothermal area (Northern Apennines, Italy)
No full textGeometry, stacking pattern and deformation timing of imbricate thrust-sheets within the Tuscan Nappe in the Travale area (Larderello geothermal area, Italy)
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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
Sezione 321070, Foglio 321 Abbadia San Salvatore, Carta Geologica Regionale, Scala 1:10.000, Regione Toscana
No full textMetadati Carta Geologica Regione Toscana scala 1:10.000. http://159.213.57.103/geoweb/listmet/lista_metadati_10k.ht
Influence of microclimatic variations on EAG responses of Lymantria dispar (Lepidoptera: Lymantridae) males sex pheromone
No full textThe gypsy moth Lymantria dispar, like many other forest defoliator species, exhibits periodic population outbreak dynamics, whose variability in different years and in different places can be attributed to different microclimatic parameters. This study was focused on the correlation between climatic variations in two different localities of Sardinia over a three‐year period and on changes in sensitivity of the male antennal olfactory receptors. Our electrophysiological results show that olfactory EAG responses to the sex pheromone of the antennae are inversely correlated with rainfall during gypsy moth larval development. On the other hand, male antennal sensitivity and ambient temperature were not correlated, possibly due to the fact that no significant climatic variations were detected in the period examined. Our findings, especially for rainfall, are in good agreement with data in the literature concerning the effects of weather on gypsy moth population dynamics
Chemoreception in larvae of the moth Lymantria dispar
No full textTaste sensitivity in response to diet components was studied in larvae of the gypsy moth, Lymantria dispar, by means of electro-physiological and behavioural approaches. Dose-response relationships were studied for NaCl, sucrose, and nicotine solutions with the aim of better characterizing chemoreceptor cells involved in gustation. Results showed that medial sensilla styloconica in the galea are specifically sensible to deterrent substances like salt and nicotine; instead, lateral sensilla showed a marked sensitivity to sugars. Morphological and electrophysiological data on the possible role of the sensilla basiconica of the maxillary palps are also reported. On the basis of the results obtained, it is proposed that taste chemoreceptor cells in the gypsy moth should be categorized as phagostimulatory or deterrent on the basis of their behavioural effects, rather than of their responding to specific stimuli
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