Search results for "Stent"
showing 10 items of 1166 documents
Evaluation of different InSAR multi-baseline construction methods over a dam in southern Italy
2018
Monitoring dam displacements using different techniques allows an evaluation of their structural behaviour over time. In this study, dam displacements (for the Castello dam, Agrigento, Italy) have been investigated using different Interferometric Synthetic Aperture Radar (InSAR) techniques exploiting a freely available dataset from the EU Copernicus Sentinel-1 SAR built by the European Space Agency (ESA). The dataset includes Sentinel 1A (S1A) images acquired in dual-polarization and Interferometric Wide (IW) swath using the Terrain Observation with Progressive Scans SAR (TOPSAR) mode. Three main Multi-Baseline Construction methods based on the identification of Persistent Scatterers (PS) h…
Oracle Intelligent Bots Cloud Service piedāvātās iespējas
2018
Bakalaura darba “Oracle Intelligent Bots cloud service piedāvātās iespējas” mērķis ir izpētīt, kas ir virtuālais asistents, kāds ir tā izstrādes process un noskaidrot, kādas ir cilvēku zināšanas par šāda veida programmatūru. Pētījumā tiek izstrādāts Oracle virtuālais asistents, kas savienots ar facebook Messenger , kā arī veikta aptauja gan latviešu, gan angļu valodā, lai noskaidrotu, vai ir kāda atšķirība no latviešu un ārzemnieku viedokļiem saistībā ar virtuālo asistentu.
Architectures “on ruins” and ambiguous transparency: the glass in preservation and communication of archaeology
2008
Abstract The contemporary architecture is characterized by an even more marked transparency, as a result of a continuous experimentation all directed towards the search of the built “lightness”, that is towards the “dematerialization” of the architecture and the consequent loss of weight connected to the excess of form. It is in 1851 that a New Architectural Age springs because of the realization of the Crystal Palace, in London – that has addressed towards the experimentation of the glass as an architectural, structural element and of design. Today, part of this experimentation has been applied for some interventions of coverage, protection and communication in situ of the archaeological r…
Archives and documents in the digital age
2017
Este artículo se propone reflexionar sobre algunas de las características del nuevo orden digital. En particular, se centra en las mutaciones que afectan a los conceptos de archivo y documento, así como a sus rasgos más destacados. Partiendo del hecho de que estos registros son fundamentales para cualquier estudioso del pasado, indaga sobre las consecuencias de su desmaterialización. Se examina el significado de ese espacio en algunas de sus dimensiones y se subraya la evidente paradoja que supone conservar y estudiar objetos o datos que son efímeros por naturaleza y que, en su mayoría, nacieron para morir rápidamente. The paper aims to examine and explore on some of the characteristics of …
Endovascular Aneurysm Repair
2002
Background — The purpose of the present study was to systematically analyze the histopathologic organization processes in excluded aneurysms after endovascular stenting and to develop a noninvasive monitoring method for these processes using MRI. Methods and Results — In 36 mongrel dogs, autologous aortic aneurysms were created. Endovascular treatment was performed using covered stents. Follow-up was after 1 week, 6 weeks, and 6 months. MRI was performed with T 2 -weighted turbo-spin-echo sequences and T 1 -weighted spin-echo sequences and was repeated after contrast bolus with gadolinium. Histopathologic findings were correlated to signal intensities (SIs) of MRI images. SIs of distinct a…
Organochlorinated pesticides in sediments from the Lake Albufera of Valencia (Spain).
2005
Bottom sediment samples from 121 sites of the Lake Albufera of Valencia were analyzed. Dieldrin, endrin, heptachlor and op'-DDT were not detected (0.01 ng g(-1)) in 88-93% of the sites. Aldrin and HCB concentration ranges were between0.01 and 0.1 ng g(-1) in 86% and 94% of the sites, respectively. Heptachlor-epoxide and lindane 95% confidence intervals were 0.2-0.5 and 0.06-0.12, respectively. The greatest average concentration corresponds to pp'-DDE, pp'-DDD and pp'-DDT. The sum of six isomers and derivatives of the DDT average concentration reaches 2.1 ng g(-1), as opposed to 2.7 ng g(-1) for the sum of 13 pesticides considered. In the site with a major contamination, 27.0 ng g(-1) of pp'…
Nowhere Home: The Waiting of Vulnerable Child Refugees
2020
In her 2012 documentary Nowhere Home, filmmaker Margreth Olin sheds light on the vulnerabilities and injurabilities of child migrants subjected to prolonged waiting. The documentary shows unaccompanied minors being offered only temporary residence and thus identifies why these irregular migrants can be characterized as ‘particularly vulnerable’ by having their childhoods put on hold. Although the concept is contested, I conceive vulnerability as based on humans’ existential precondition in terms of something bodily and enabling. Due to child refugees’ particular vulnerability, prolonged waiting can violate their inherent dignity, bodily health, life quality and human rights. Therefore, in l…
Stent oversizing or not-oversizing? An unresolved dilemma
2021
Primary PCI plus stent implantation is indicated for treatment of acute coronary syndrome. Technically, due to the difference in lumen diameter between vessel portions and stent size in some coronary arteries, post-expansion of the stent is usually necessary to match proximal reference diameter and optimize stent apposition. Incomplete stent apposition has been associated with increased risk of in stent restenosis (ISR) and stent thrombosis (1) despite new stent technologies have largely reduced this risk (2-3). Although new antiplatelet drugs showed a more rapid onset of action and a stronger effect (4-5), stent apposition remains an important risk factor for stent thrombosis. As stent pos…
The meanings older people give to their rehabilitation experience
2006
Promoting older people's ability to manage at home is important both for themselves and for society, but few studies have explored whether geriatric rehabilitation actually meets the needs of this heterogeneous group. The purpose of this study was to investigate the meanings that older adults attribute to their geriatric rehabilitation experiences. A group of 27 older adults in inpatient rehabilitation were interviewed during the programme and after returning home. Semi-structured interviews were analysed using a qualitative method, which identified three categories of meaning. In the category ‘sense of confidence with everyday life’, rehabilitation was perceived as facilitating everyday li…
Existentially closed central extensions of locally finite p-groups
1986
Throughout, p will be a fixed prime, and will denote the class of all locally finite p-groups. For a fixed Abelian p-group A, we letwhere ζ(P) denotes the centre of P. Notice that A is not a class in the usual group-theoretic sense, since it is not closed under isomorphisms.