1,721,063 research outputs found
Analisi statistica multi-scala di dati di scan line condotte su analoghi di reservoir di idrocarburi
No full textUno studio preliminare sul funzionamento riflessivo degli adolescenti adottati: implicazioni cliniche
No full textUn’ampia letteratura ha messo in luce il collegamento tra un cattivo funzionamento della mentalizzazione e alcuni disturbi psicologici in età adulta ed evolutiva (Sharp e Venta, 2012). Molto meno è noto rispetto alla capacità di mentalizzare degli adolescenti adottati tardivamente che, date le loro relazioni di attaccamento precoci gravemente compromesse, potrebbero rappresentare una popolazione portatrice di particolari vulnerabilità nel funzionamento riflessivo (FR). Questo contributo si propone l’obiettivo di esaminare quanto sia variabili descrittive (età, genere, scuola frequentata, numero di fratelli), sia variabili legate all’adozione (età al momento del collocamento, paese d’origine, durata dell’adozione, istituzionalizzazione) possano esercitare un’influenza sul funzionamento riflessivo di un gruppo di 36 adolescenti che al momento dell’adozione avevano tutti più di 4 anni.
La capacità riflessiva è stata valutata attraverso la Friend and Family Interview, che misura il FR comprendendo tre dimensioni: la prospettiva evolutiva (PE), la teoria della mente (ToM) e la diversità dei sentimenti (DS). I dati hanno mostrato che le variabili legate all’adozione non sono correlate ai punteggi di funzionamento riflessivo eccetto una correlazione tra la durata dell’inserimento e la DS (amico). Delle variabili descrittive, l’età al momento della valutazione risulta correlata positivamente sia con la ToM (madre, fratello, amico, insegnante), sia con la DS (madre, fratello, amico), mentre le ragazze mostrano punteggi superiori nella PE (U Mann Whitney=84,000, p<.05) e nella DS (amico, U Mann Whitney=69,000, p<.01). Non emergono differenze di FR rispetto alla numerosità della fratria.
Questi risultati evidenziano che tra gli adolescenti adottati, come emerso negli studi con campioni normativi, l’essere più grandi di età e l’appartenenza al genere femminile rappresentino fattori che favoriscono una migliore espressione delle abilità di mentalizzazione
Theory of Effective Stress in Soil and Rock and Implications for Fracturing Processes: A Review
Full text linkThe effective stress principle (ESP) plays a basic role in geology and engineering problems as it is involved in fundamental issues concerning strain and failure of rock and soil, as well as of other porous materials such as concrete, metal powders, biological tissues, etc. Although since its introduction in the 1920s the main ESP aspects have been unravelled and theoretically derived, these do not appear to have been always entirely perceived by many in the science community dealing with ESP-related topics but having little familiarity with the complex theories of porous media and poroelasticity. The purpose of this review is to provide a guidance for the reader who needs an updated overview of the different theoretical and experimental approaches to the ESP and related topics over the past century, with particular reference to geological fracturing processes. We begin by illustrating, after some introductive historical remarks, the basic theory underlying the ESP, based on theory of elasticity methods. Then the different ESP-related theories and experimental results, as well as main interpretations of rock jointing and fracturing phenomena, are discussed. Two main classical works are then revisited, and a rigorous ESP proof is derived. Such a proof is aimed at geologists, engineers and geophysicists to become more familiar with theories of porous media and poroelasticity, being based on the classical theory of elasticity. The final part of this review illustrates some still open issues about faulting and hydraulic fracturing in rocks
Seismic microzonation studies by using the equivalent linear approach (L’Aquila, central Italy)
No full textThis contribution is part of the third level Seismic Microzonation project activities carried out on pilot areas of L'Aquila Municipality area and financed by the Abruzzo Region (Department of Government of the Territory and Environmental Policies - Risk Prevention Service of Civil Protection). L’Aquila Municipality area pertains geologically to the middle Aterno River intermontane basin which was filled up by Plio-Quaternary coarse- and fine-grained detrital deposits related mainly to lacustrine, slope and alluvial environments. It is characterised furthermore by a notable seismic hazard as showed by the recent April 6, 2009 Mw 6.29 near source earthquake and the far field Central Italy 2016 seismic sequence. According to the Italian Civil Protection Department guidelines numerical maps and database were produced at the end of the third level Seismic Microzonation project. The project was realized through the following activities: (i) update of database concerning boreholes, geotechnical and geophysical in-situ investigations; (ii) far field and near source seismic input selection; (iii) computer code selection; (iv) geophysical and geotechnical soil characterization; (v) definition of the geological sections; (vi) 1D and 2D modelling; (vii) mapping the third level Seismic Microzonation zones based on the calculated Amplification Factors; (viii) third level Seismic Microzonation numerical maps elaboration. Considering the complex seismostratigraphy of L'Aquila Municipality area, 2D modeling was carried out on a very large number of sections to calculate in-depth the AFs and analyze their areal variation. The nonlinear soil behaviour is taken into account by performing equivalent linear simulations. The validity of 2D modelling was confirmed by the congruence between the geological background and the AFs value distribution. The 2D modelling allowed to verify the existence of basin and basin edge effects via the comparison with 1D simulations (Preturo-Sassa area). In the Bazzano-Monticchio area crossing the Aterno R. plain, the AF values increase for the intervals of the higher periods which could be possibly linked to 2D effect
Anomalies of the Larynx
No full textCongenital and acquired laryngeal anomalies are a challenge for pediatric surgeons, otolaryngologists, neonatologists, and anesthesiologists. Among the more common, laryngomalacia, vocal cord palsy, congenital subglottic stenosis, and congenital web are described. For many of them, surgical approach offers good results. A multidisciplinary team is required to offer these patients the best treatment
Cystic Mediastinal Masses in Children
No full textMediastinal cysts are rare pathologies in pediatric age that can have different nature: congenital, infectious, or neoplastic. The symptoms can be quite varied, and the radiological investigation plays a very decisive role in the surgical indication
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
Molecular analysis of calmodulin-dependent myosin light chain kinase from chicken smooth muscle
No full textVariations 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
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