Search results for "EFE"
showing 10 items of 5785 documents
The Roadmap to Finnish Open Science and Research
2015
Finland published its open science roadmap at the end of November 2014. This roadmap is based on the work of the Open Science and Research Initiative (ATT), a cross-administrative initiative established by the Ministry of Education and Culture. The goal of this initiative is to promote open science and availability of information. Exploration of recent developments of open access in the EU shows that Finland is not among the leading countries in the EU. This paper focuses on the practical action plan of this roadmap and describes how the weakest part of Finnish open science, green open access is to be lifted at international top level.
Hypervisor-Based White Listing of Executables
2019
We describe an efficient system for ensuring code integrity of an operating system (OS), both its own code and application code. The proposed system can protect from an attacker who has full control over the OS kernel. An evaluation of the system's performance suggests the induced overhead is negligible. peerReviewed
Safety of hospital discharge before return of bowel function after elective colorectal surgery
2020
Ileus is common after colorectal surgery and is associated with an increased risk of postoperative complications. Identifying features of normal bowel recovery and the appropriateness for hospital discharge is challenging. This study explored the safety of hospital discharge before the return of bowel function.A prospective, multicentre cohort study was undertaken across an international collaborative network. Adult patients undergoing elective colorectal resection between January and April 2018 were included. The main outcome of interest was readmission to hospital within 30 days of surgery. The impact of discharge timing according to the return of bowel function was explored using multiva…
Appropriateness of surgery performed for abdominal aortic aneurysm at tertiary hospitals in Spain
2021
Background: The aim of this study was to analyze the appropriateness of the type of repair (open or endovascular) performed for abdominal aortic aneurysm (AAA) in five university hospitals in Spain, according to evidence-based recommendations. Methods: A multicenter, retrospective cross-sectional study of patients with AAA who underwent elective open surgical repair (OSR) or endovascular aneurysm repair (EVAR). Data were collected on demographic and clinical variables and type of surgical repair. A pair of vascular surgeons from each participating hospital performed a blinded assessment based on GRADE recommendations. The concordance between the two evaluators and the agreement between thei…
Iedzimtas šķielēšanas operācijas laiki un iegūtie rezultāti
2017
Pētnieciskajā darbā tiek apskatīta būtiska un bieži sastopama oftalmoloģiska patoloģija – iedzimta šķielēšana. Bērniem ar šķielēšanu ir ne tikai kosmētisks defekts, kuru nekoriģējot, bērns nevar attiecīgi adaptēties sociālajā vidē, jo īpaši pieaugot, bet, kas ir jo būtiskāk, bērnam ir dažādi redzes traucējumi, tādi kā ambliopija, hipermetropija u.c. Darba mērķis ir noskaidrot iedzimtas šķielēšanas optimālus operācijas laikus un izanalizēt ķirurģiskās ārstēšanas rezultātus. Pētījuma veikšanai tika atlasītas 30 bērnu ambulatorās kartiņas, kas attiecas uz laika periodu no 2007. gada līdz 2011. gadam ar iedzimtas šķielēšanas diagnozi. Atlases kritērijs bija diagnosticēta iedzimta šķielēšana no …
Etude spectroscopique de fibres durcies pour un environnement radiatif sévère
2013
Les nouveaux environnements radiatifs, comme LMJ, ITER, ILE/ELI, HiPER, réacteurs nucléaires des générations III+ et IV, nécessitent le développement de nouveaux composants pour le transport et le traitement des signaux. A cause de l’impossibilité d’utiliser les composants électroniques, la recherche est orientée vers les composants à fibres optiques comme vecteur d’information et aussi comme élément de diagnostic. Ils présentent de nombreux avantages, comme leur relative immunité électromagnétique, faible pois, large bande passante, mais les rayonnements gamma et les neutrons dégradent leur transmission. La dégradation dépend principalement de la composition de la fibre. Ainsi, il a été mo…
Origins of radiation-induced attenuation in pure-silica-core and Ge-doped optical fibers under pulsed x-ray irradiation
2020
We investigated the nature, optical properties, and decay kinetics of point defects causing large transient attenuation increase observed in silica-based optical fibers exposed to short duration and high-dose rate x-ray pulses. The transient radiation-induced attenuation (RIA) spectra of pure-silica-core (PSC), Ge-doped, F-doped, and Ge + F-doped optical fibers (OFs) were acquired after the ionizing pulse in the spectral range of [∼0.8–∼3.2] eV (∼1500–∼380 nm), from a few ms to several minutes after the pulse, at both room temperature (RT) and liquid nitrogen temperature (LNT). Comparing the fiber behavior at both temperatures better highlights the thermally unstable point defects contribut…
Approche couplée pour le développement de matériaux optiques résistants aux radiations
2011
National audience; De très nombreuses applications sont aujourd'hui envisagées pour les matériaux optiques en environnement radiatif. Ce regain d'intérêt pour l'usage de verres ou fibres optiques dans des environnements hostiles s'explique par leurs avantages inhérents en particulier leur immunité électromagnétique. En revanche, il est également bien établi que les radiations entrainent la génération de défauts ponctuels dans verres amorphes. Ces défauts vont, au niveau macroscopique, entrainer une altération des propriétés optiques du matériau, le plus souvent de la silice amorphe pure ou dopée. Ainsi, les fibres optiques vont, sous irradiation, voir leur atténuation linéique augmenter, po…
The relevance of point defects in studying silica-based materials from bulk to nanosystems
2019
The macroscopic properties of silica can be modified by the presence of local microscopic modifications at the scale of the basic molecular units (point defects). Such defects can be generated during the production of glass, devices, or by the environments where the latter have to operate, impacting on the devices’ performance. For these reasons, the identification of defects, their generation processes, and the knowledge of their electrical and optical features are relevant for microelectronics and optoelectronics. The aim of this manuscript is to report some examples of how defects can be generated, how they can impact device performance, and how a defect species or a physical phenomenon …
Sicilia. Il ricorso alle ordinanze contingibili e urgenti per ostacolare le politiche di accoglienza e integrazione sociale dei migranti: il sistema …
2019
Il lavoro si propone di esaminare il sistema di governance multi-level (Prefetto-Sindaco9 indispensabile per prevenire l'adozione di ordinanze d'urgenza lesive dei diritti fondamentali dei cittadini e dei migranti.