Search results for "stent"

COMPUTER AIDED ENGINEERING FOR THERMO-MECHANICAL-METALLURGICAL ANALYSIS OF FORGING OPERATIONS OF TITANIUM ALLOYS

In this thesis a study on the forging processes of Ti-6Al-4V titanium alloy, with particular focus on the numerical applications and simulation design of hot forming methods, was done. The aim of this work is to collect all data concerning the material definition in terms of thermal, mechanical and microstructural properties of the selected alloy in order to filter all useful information to describe the behavior of the material under the characteristic conditions of the hot forging processes, taking into account both thermo-mechanical and metallurgical aspects involved during a such complex thermo-mechanical stage. Those information were collected and used to characterize the material prope…

Correction to “Self-Consistent Charge Density-Functional Tight-Binding Parameterization for Pt–Ru Alloys”

2018

Introduction to coronary imaging with 64-slice computed tomography

2005

The aim of this article is to illustrate the main technical improvements in the last generation of 64-row CT scanners and the possible applications in coronary angiography. In particular, we describe the new physical components (X-ray tube-detectors system) and the general scan and reconstruction parameters. We then define the scan protocols for coronary angiography with the new generation of 64-row CT scanners to enable radiologists to perform a CT study on the basis of the diagnostic possibilities.

The Time Course of Emotional Responses to Music

2005

Two empirical studies investigate the time course of emotional responses to music. In the first one, musically trained and untrained listeners were required to listen to 27 musical excerpts and to group those that conveyed a similar emotional meaning. In one condition, the excerpts were 25 seconds long on average. In the other condition, excerpts were as short as 1 second. The groupings were then transformed into a matrix of emotional dissimilarity that was analyzed with multidimensional scaling methods (MDS). We compared the outcome of these analyses for the 25-s and 1-s duration conditions. In the second study, we presented musical excerpts of increasing duration, varying from 250 to 20 s…

The meaning of slow nursing in dementia care.

2015

Research literature in the dementia field lacks examples of ‘best-practices’ demonstrating concretely how it is possible to support the sense of coherence in people with dementia. The purpose of this study was to elucidate the nurses’ views concerning a caring approach that may support the sense of coherence in people with dementia. The data were collected through participant observation and focus group interviews during a four-month period in 2011. Sixteen registered nurses recruited from two Norwegian nursing homes participated in this study. The data were interpreted using a phenomenological-hermeneutical method. Three themes were identified: ‘being in the moment’, ‘doing one thing at a…

Se on yhteistä työtä : alueellisen erityislastentarhanopettajan työn muotoutuminen lähipäiväkodissa

2011

Tämän tutkimuksen tarkoituksena on ollut tuottaa tietoa alueellisen erityislastentarhanopettajan (alue-elto) työn muotoutumisesta tavallisen päivähoidon arkiympäristössä sekä päiväkotien kasvatushenkilöstön arvioista koskien alue-elton työtä ja yhteistyötä hänen kanssaan. Tutkimus on tehty toimintatutkimuksena. Tutkimuksessa kuvataan alue-elton ajankäyttöä ja työtehtäviä sisällöllisesti. Tutkimuksen aineistona on alue-eltojen työajanseuranta runsaan vuoden ajalta. Työajanseurannassa alue-eltot kuvailivat työtehtäviään 15 minuutin tarkkuudella yhden viikon ajan kuukaudessa lokakuusta 2000 joulukuuhun 2001. Alue-eltot vastasivat kyselyyn kokemuksistaan vuosina 2001 ja 2006. Kyselyssä he myös …

Polycyclic aromatic hydrocarbons (PAHs) and their oxygen-containing derivatives (OPAHs) in soils from the Angren industrial area, Uzbekistan.

2009

We measured the concentrations and depth distribution (0-10, 10-20 cm) of 31 PAHs and 12 OPAHs in soils at eleven equidistant sampling points along a 20-km transect in the Angren industrial region (coal mine, power plant, rubber factory, gold mine), Uzbekistan to gain an insight into their concentrations, sources, and fate. Concentrations of all compounds were mostly much higher in the 0-10 cm than in the 10-20 cm layer except in disturbed soil close to the coal mine. Proximity to one of the industrial emitters was the main determinant of PAH and OPAH concentrations. The Sigma31PAHs concentrations correlated positively with the Sigma7 carbonyl-OPAH (r=0.98, p<0.01), Sigma5 hydroxyl-OPAH (r=…

Understanding the fluctuations of perceived authenticity in cultural tourism : an investigation of Bali and Alsace contexts

2022

The marketing of cultural tourism faces a dilemma between maximizing the economic return and nurturing the culture’s social functions. It needs to attract segments driven by cultural motifs, through a differentiation based on authenticity. Perceived authenticity changes over a time, but how it does remains elusive to researchers. This research investigated fluctuations of existential authenticity in cultural tourists in Bali. Participants were purposively and conveniently-sampled among visitors of cultural attractions. It comprised two stages: qualitative for building the model, and quantitative fortesting the variables. The first employed Grounded Theory interviewing 24 visitors, found the…

Fantasmas en un desierto que brilla o la soledad del lector de palimpsestos. Los relatos del regreso en Max Aub, Francisco Ayala y Arturo Barea

2018

Ghosts in a shining desert or the solitude of the palimpsests reader. Stories of the return in Max Aub, Francisco Ayala and Arturo Barea worksDuring the long years of exile, writers like Max Aub, Francisco Ayala or Arturo Barea wrote stories in which they fictionalized the returns of the exiles before their own returns occurred. This is the case of the works collected in Las vueltas 1965 originally written in 1947, 1960 and 1964, and of Max Aub’s story “El remate” 1965, of “El regreso”, by Francisco Ayala 1948 and of the novel La raíz rota by Arturo Barea 1951. In this article I intend to draw the common lines of meaning between all these fictions and compare them with La gallina ciega. Dia…

Hermeneutics of Transcendence. Understanding and Communication at the Limits of Experience

2013

When access to shared realities is denied or blocked as in extreme situations that transcend everyday experience, a phenomenological-hermeneutic problem arises between the solitary Ego and its socially constituted meaning. With no action space to prove one’s own reality there lacks a counter-space to transcend the ambiguously irreal reality in order to perspectivize, to understand and reflect on it. Hermeneutics of transcendence analyse the experience of borders and limitations – not starting with an interrogation of constitutive grounds of shared social meaning but with structures to regain meaning in the socio-pathological structures of life excluding a Self from horizons of shared meanin…