Search results for "EFA"
showing 10 items of 1142 documents
Le funzioni delle reti mirabili encefaliche
2009
I numerosi spiaggiamenti di delfini e balenottere potrebbero collegarsi a fenomeni d’ipossia cerebrale causata dalla vasodilatazione in vaste aree delle reti mirabili encefaliche. Questa vasodilatazione riduce il controllo su di CBF e MAP e non è compensata da un apporto aggiuntivo diretto di sangue come avviene per il Gatto, ruminanti, Giraffa ed altri mammiferi provvisti di reti mirabili encefaliche. La pressione intracranica sarebbe l’effettiva pressione di flusso della circolazione cerebrale. Studi su altri organi hanno invece trovato che l’effettiva pressione di flusso è data dalla pressione critica di chiusura (storno), localizzata nelle arteriole. Weyland A. et all.(2000), affermano …
FORMA URBANA TRA DISCONTINUITA' E DISTANZA
2021
With the belief that only by adhering to a wide and general theory on the composition of its structure, it is possible to proceed to the manipulation of even the most minute of its parts, the essay tends to develop a thought on the idea of the shape of the urban organism aimed at composing a settlement grammar to define a suitable syntax that is then projected to assign an identity to the peri-urban areas. Drawing on references that have already expressed a stance on the matter, to be found throughout the text is the endorsement of an idea of densification linked to the expansion and completion of existing manufactured fragments to yield clusters on the remains of what is left of the origin…
Premolars restored with posts of different materials: fatigue analysis
2011
Previous works studied the effect of the material and the dimensions of the post on the biomechanical performance (fracture strength and stress distribution) of restored teeth, under static loads. The aim of this work was to study the effect of the post material (glass fibre and stainless steel) on restored teeth, which have the final crown, under dynamic conditions. The use of a biomechanical model, including a fatigue analysis from FEA, is presented as a powerful method to study the effect of the material of the intraradicular post. The inclusion of the fatigue analysis allows for a more realistic study that takes into account the dynamic nature of masticatory forces. At the same time, th…
Improved Solid Phase Extraction Procedure for Assay of Cephalosporins in Human Urine Samples
1998
Abstract Solid phase extraction technique has been evaluated for the treatment of urine samples in the analysis of cephalosporins before injection into an HP-Hypersil ODS-C18 column. Cephalexin, cefotaxime, cefazolin, cefuroxime, and cefoxitin were tested with seven different reversed-phase extraction column cartridges and the obtained urine extracts were not clean. However, 3M Empore extraction disk cartridges packed with octadecyl (C18) bonded silica provided clean extracts with a single extraction. The recoveries of the five cephalosporins ranged from 56 to 60 % in the 1.25–500 g/mL concentration range. The assay was accurate, precise, and adequate for testing the drug content in urine s…
Determination of total mercury in nuts at ultratrace level
2014
Abstract Total mercury, at μg kg−1 level, was determined in different types of nuts (cashew nut, Brazil nuts, almond, pistachio, peanut, walnut) using a direct mercury analyser after previous sample defatting and by cold vapour atomic fluorescence spectrometry. There is not enough sensitivity in the second approach to determine Hg in previously digested samples due to the strong matrix effect. Mercury levels in 25 edible nut samples from Brazil and Spain were found in the range from 0.6 to 2.7 μg kg−1 by using the pyrolysis of sample after the extraction of the nut fat. The accuracy of the proposed method was confirmed by analysing certified reference materials of Coal Fly Ash-NIST SRM 1633…
Tensions in Information System Artefacts: Explaining Land Information Systems’ Sub-optimal Impact in Indonesia
2017
Part 14: Current Issues; International audience; Despite the advancement of more integrated land information systems (LIS), conflicts and disputes over land in Indonesia remain. Our study seeks to explain this situation. Using an interpretive case study conducted in Eastern Indonesia and framed within the concepts of information system (IS) artefacts, we find that tensions within and between information, technology, and social artefacts help to explain the sub-optimal LIS impacts. Inconsistent information, unsuitable technology, and conflicting social arrangements are examples of such tensions. Unless the tensions are properly resolved, LIS use cannot fulfil its potential for more appropria…
Towards a tanslatological study of multilinguism : translating the insertion of dialect within contemporary Italian narrative into French
2015
This PhD thesis examines Italian contemporary literary works (novels and short stories) in which dialect is used as a linguistic variety in combination with the national Italian idiom. The analysis is conducted through the works of four Italian writers, in which multilingualism is particularly significant: Andrea Camilleri, Salvatore Niffoi, Laura Pariani and Andrej Longo. Taking into account the complex linguistic situation of Italy, the thesis focuses on the translation of these works characterized by the co-existence of two different linguistic systems. Through an examination of the colourful mixture of linguistic varieties and the function of dialect in these contemporary texts, the the…
I traffici illeciti nel Mediterraneo. Persone, stupefacenti, tabacco. Report Germania
2019
Il Report analizza il diritto penale tedesco relativo a quattro diversi tipi di traffico: il traffico di migranti, la tratta di esseri umani, il traffico di stupefacenti e il contrabbando di sigarette. Il Report fa parte di una più ampia ricerca ("The New Era of Smuggling in the Mediterranean Sea", NESMeS) volta ad analizzare i suddetti traffici illeciti nell'area del Mediterraneo, con particolare riguardo ai seguenti paesi: Germania, Grecia, Italia, Portogallo e Spagna. Insieme al Rapporto tedesco e ai Report dei singoli ordinamenti giuridici interessati, la ricerca NESMeS ha prodotto un Report criminologico e un libro finale ("I traffici illeciti nel Mediterraneo. Persone, stupefacenti, t…
Quasi Conjunction and Inclusion Relation in Probabilistic Default Reasoning
2011
We study the quasi conjunction and the Goodman & Nguyen inclusion relation for conditional events, in the setting of probabilistic default reasoning under coherence. We deepen two recent results given in (Gilio and Sanfilippo, 2010): the first result concerns p-entailment from a family F of conditional events to the quasi conjunction C(S) associated with each nonempty subset S of F; the second result, among other aspects, analyzes the equivalence between p-entailment from F and p-entailment from C(S), where S is some nonempty subset of F. We also characterize p-entailment by some alternative theorems. Finally, we deepen the connections between p-entailment and the Goodman & Nguyen inclusion…
Probability Propagation in Selected Aristotelian Syllogisms
2019
This paper continues our work on a coherence-based probability semantics for Aristotelian syllogisms (Gilio, Pfeifer, and Sanfilippo, 2016; Pfeifer and Sanfilippo, 2018) by studying Figure III under coherence. We interpret the syllogistic sentence types by suitable conditional probability assessments. Since the probabilistic inference of $P|S$ from the premise set ${P|M, S|M}$ is not informative, we add $p(M|(S ee M))>0$ as a probabilistic constraint (i.e., an ``existential import assumption'') to obtain probabilistic informativeness. We show how to propagate the assigned premise probabilities to the conclusion. Thereby, we give a probabilistic meaning to all syllogisms of Figure~III. We…