1,721,072 research outputs found
Possible roles of epiploic appendages
No full textHistorically, only the energy storage function had been attributed to adipose tissue. However, recent studies have shown that it is also able to secrete several substances which act in a paracrine or endocrine manner, contributing to the maintenance of or-ganism’s homeostasis. It has been reported that the visceral fat has distinctive secret-ing characteristics. Based on previous scientific observations, here we shall describe the possible functional role of epiploic appendages. The epiploic appendages may play an important role in the metabolic regulation and/or in immune defense through the secretion of specific factors, such as leptin and some inflammatory cytokines. Leptin has been seen to be involved both in the regulation of hunger signals, in coordination with the hypothalamus, and in complex immune defense processes. The exact under-standing of the behavior of this hormone could play a key role in understanding the functions ascribed to the epiploic appendages
A NONLINEAR DYNAMIC MODEL FOR SEISMIC ANALYSIS OF EARTH-RETAINING DIAPHRAGM-WALLS
No full textThis paper introduces a simplified model for the dynamic analysis of diaphragm walls retaining dry cohesion-less soils with horizontal back-slope subjected to seismic excitation. The model is based on the well-known one-dimensional Winkler approximation and on the non-linear shear-beam model for the ground layers on both sides of the wall. The model can include anchor-ties and can account for non-linearity in all of its elements (retained soil, anchors and wall). A numerical application is presented, which includes a validation of the proposed model results versus those of a refined plane- strain nonlinear finite-element analysis carried out with a commercial code. Based on these preliminary results the model appears to yield quite accurate predictions of static and dynamic bending moment distributions and permanent wall displacements
The establishment of an organic farmers’ market as a training case study for Students of the Faculty of Agriculture in the University of Palermo
No full textEVOLUZIONE DEI MACRO E MESO ELEMENTI DURANTE UN CICLO VEGETATIVO DEL PISELLO DA GRANELLA COLTIVATO SU DUE TIPI PEDOLOGICI (II NOTA)
No full textMicrocirculation in the healing of surgical wounds in the oral cavity
No full textThe aim of this research is to evaluate in vivo the characteristics of microcirculation after taking a biopsy sample from the oral mucosa. 20 patients were recruited to the study and all underwent an oral mucosa biopsy for the excision of benign neoformations. The modifications in the oral microcirculation were evaluated in vivo in correspondence to the surgical site through videocapillaroscopy at three different times: 30 min before the biopsy; 48 h after the biopsy; and 7 days after the biopsy. The statistical significance was checked with the Mann-Whitney U-test (P < 0.05). The analysis of videocapillaroscopic patterns showed statistically significant variations relative to the capillary loop density; the diameter of the outgoing loop; and the length of the capillary loop. In conclusion, the study describes a simple and reproducible model for the study of wound healing from a microcirculatory point of view. © 2012 International Association of Oral and Maxillofacial Surgeons
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
Rintc project: Influence of structure-related uncertainties on the risk of collapse of Italian code-conforming reinforced concrete buildings
No full textThis paper reports on the results of an ongoing Research Project aimed at computing the risk of collapse in new buildings conforming to the Italian Seismic Design Code. Companion papers describe the overall Research Project, funded by the Italian Civil Protection Department (DPC), its different application areas (reinforced concrete, masonry, steel buildings, etc), the overall seismic risk calculation procedure and the ground motion selection process followed to identify the recorded ground motions used for the multi-stripe analyses for ten different ground motion intensities. This papers describes the multivariate statistical model of the structure-related uncertainty developed with reference to reinforced concrete buildings, describing the variability of material properties as well as model error terms of the adopted response models for both RC members and masonry infills. The paper describes also the efficient sampling procedure adopted and discusses the results of the nonlinear analyses, both static and dynamic, carried out under different assumptions on the correlation structure for the selected reinforced concrete buildings (namely 6- and 9-storey moment resisting frame)
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
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