Search results for "CEM"

Les contradictions de l'université de masse dix ans après (1973-1983)

1984

Jean-Pierre Jarousse : Die Widersprüche der Massenuniversität zehn Jahre später (1973-1983). Das von L. Lévy-Garboua vorgestellte Auswahlmodell zur Erklärung der Verschlechterung, die in der französischen Universität im Verlauf der siebziger Jahre empfunden wurde, sowie der scheinbare Widerstand zur Verminderung der Hochschulnachfrage, zeigte, dass die vom Student durchgeführte Kontrolle über seine Studienzeit diesem gestattete, die Universität zu besuchen ohne jedoch hieraus grössere künftige Vorteile zu erwarten. Unter Berücksichtigung der respektiven Entwicklung der Berufssituation der Abiturienten und der Hochschuldiplomierten, behaupten andere Verfasser im Gegenteil, dass der Universit…

Sociālā funkcionēšana pēc aortas vārstuļa protezēšanas vēlīnajā pēcoperācijas periodā

2017

Pētījuma „Sociālā funkcionēšana pēc aortas vārstuļa protezēšanas vēlīnajā pēcoperācijas periodā” mērķis ir izpētīt sociālo funkcionēšanu pēc aortas vārstuļa protezēšanas vēlīnajā pēcoperācijas periodā un noteikt baiļu iespējamo ietekmi sociālās funkcionēšanas rādītājos. Kvantitatīvā pētījuma rezultātā hipotēzes tiek galvenokārt apstiprinātas. Iegūtie dati raksturo fizisko un emocionālo pašsajūtu, attiecības ar līdzcilvēkiem un dzīvesveidu pēc aortas vārstuļa protezēšanas, kā arī baiļu ietekmi uz šiem rādītājiem. Tiek secināts, ka ir nepieciešama pacientu izglītošana pēc operācijas un pirmspensijas vecums ir kritiskākā vecuma grupa, kurai ir problēmas ar kaitīgo ieradumu praktizēšanu un atgr…

Effect of postbleaching application of an antioxidant on enamel bond strength of three different adhesives

2010

Objectives: The aim of this study was to compare the shear bond strength (sbs) of three different adhesives on bleached enamel immmmediately after bleaching, bleached/delayed for 1 week, and bleached/applied antioxidizing agent. Study Design: The enamel surfaces of 144 freshly extracted incisors without any caries and restorations were flattened and divided into 12 groups. The following adhesives were investigated: Optibond FL (OFL) (three-step etch&rinse), Optibond Solo Plus (OSP) (two-step etch&rinse), Optibond All-in-One (OA) (one-step self-etch), (Kerr, Orange, USASA). Unbleached enamel groups were prepared as negative controls. The remainder surfaces were bleached with 20% Opalescent P…

Solunto: dalla conoscenza alla conservazione

2016

Per l’antica città di Solunto (Santa Flavia-Palermo), solo alla fine del XVIII sec., inizia un processo di analisi finalizzato alla sua conservazione, mediante tutela e restauro, che prosegue fino ai nostri giorni. Pertanto il mio saggio vuole essere un contributo per conoscere e meglio conservare questo patrimonio rappresentato da materiali e strutture, attraverso continue cure, al fine di assicurare vita alla vita delle testimonianze, per la nostra generazione, ma soprattutto per quelle che ci seguiranno. To the ancient city of Solunto (Santa Flavia-Palermo), only in the late Eighteenth century, begins a process of analysis aimed at its preservation, through protection and restoration, wh…

Physical Methods for Enhancing Oral Mucosal Delivery: Sonophoresis, Iontophoresis and Electroporation

2015

The need for more rapid onset of action and improved absorption of medications has resulted in great development of drug delivery technologies. Transmucosal drug delivery offers a convenient route of administration for a variety of clinical indications. Unfortunately, the wide variability in structure of the oral mucosal tissues could constitute a key factor in drug penetration and absorption. To circumvent this obstacle and to increase the drug flux through the mucosal membranes, different approaches to permeation enhancement are used. This chapter describes the most significant aspects of the physical techniques widely used such as sonophoresis, iontophoresis, and electroporation. These p…

Analysis of mechanical behaviour of wood species by speckle interferometry

2007

The understanding of the mechanical behaviour of wood is a very important task in modern structural engineering. This is due to the increasing role played by wood structures in modern architecture as well as to its use in the restoration of ancient buildings. However, solid mechanics of wood is very difficult since it is a complex, polymer-based, cellular, inhomogeneous material. Moreover, at the cellular scale wood is not a continuum due to the presence of vascular vacuums and it can be regarded as an anisotropic material. Conversely, at a macroscopic scale when the analysis is carried out on a structural member which is large in comparison to the size of cell, wood is usually considered a…

Experimental analysis of flexural behaviour of glued lamellar wood by speckle interferometry

2009

Displacements measurement in a building model using the speckle photography technique

2005

The use of reduced scale models in civil engineering has made it possible to study large structures such as buildings. Using non-destructive optical techniques such as double-exposure speckle photography, extremely valuable results can be obtained, where mathematical methods are often not very exact. This work studies the model of an eighteen-storey building in which displacements can be measured at each storey of each view. It also presents a comparison of the displacement field, which was obtained with the Finite Element Method.

Speech Activity Detection under Adverse Noisy Conditions at Low SNRs

2021

Speech originating from the noisy environments degrades the speech quality and intelligibility, thus reducing the human perceived Quality of Experience (QoE). For example, surveillance using drone during natural catastrophe needs an efficient speech recognition device to recognise the speech of the frozen human in presence of drone noise to save their life. Therefore, it often requires to pre-process the noisy speech in order to reduce the noise artifacts and enhance the speech. This paper detects the speech activity using Voice Activity Detection (VAD). The VAD distinguishes speech activity (speech presence) and speech inactivity (silence/noise) by extracting the speech features and compar…

Quantum Machine Learning: A tutorial

2021

This tutorial provides an overview of Quantum Machine Learning (QML), a relatively novel discipline that brings together concepts from Machine Learning (ML), Quantum Computing (QC) and Quantum Information (QI). The great development experienced by QC, partly due to the involvement of giant technological companies as well as the popularity and success of ML have been responsible of making QML one of the main streams for researchers working on fuzzy borders between Physics, Mathematics and Computer Science. A possible, although arguably coarse, classification of QML methods may be based on those approaches that make use of ML in a quantum experimentation environment and those others that take…