Search results for "DEPTH"

Novel method for determination of tritium depth profiles in metallic samples

2019

Tritium accumulation in fusion reactor materials is considered a serious radiological issue, therefore a lot of effort has been concentrated on the development of radiometric techniques. A novel method, based on gradual dissolution, for the determination of the total tritium content and its depth profiles in metallic samples is demonstrated. This method allows for the measurement of tritium in metallic samples after their exposure to a hydrogen and tritium mixture, tritium containing plasma or after irradiation with neutrons resulting in tritium formation. In this method, successive layers of metal are removed using an appropriate etching agent in the controlled regime and the amount of evo…

La resistenza di interfaccia calcestruzzo poroso-terreni a grana fina per il consolidamento di pendii mediante trincee drenanti profonde

2022

Le trincee drenanti profonde rappresentano uno dei metodi più efficaci per la mitigazione del rischio da frana, in pendii con falda idrica. Esse sono realizzate mediante pannelli o pali secanti. Il riempimento è costituito di calcestruzzo poroso o materiale granulare. Se le trincee sono adeguatamente “innestate” nel terreno stabile e il materiale di riempimento ha sufficiente resistenza e rigidezza come il calcestruzzo poroso, si ha ulteriore in-cremento di resistenza a taglio per effetto shear keys, oltre a quello derivante dalla riduzione delle pressioni in-terstiziali. L’incremento di resistenza è dovuto sia alla resistenza all’interfaccia calcestruzzo–terreni sia a quella intrinseca del…

Antecedents and Outcomes of Absorptive Capacity : Three Studies in the Spanish Manufacturing Sector

2013

En los últimos años, las investigaciones en dirección estratégica han señalado al conocimiento como uno de los recursos claves que permiten la generación de ventajas competitivas. No obstante, para la creación y mantenimiento de dichas ventajas es necesario el desarrollo de capacidades que permitan la transferencia y uso eficiente de dicho conocimiento, incluso en condiciones marcadas por la agitación y el dinamismo del entorno. En este marco, la capacidad de absorción ha sido destacada como una de las capacidades esenciales que proporciona a las organizaciones la habilidad de asimilar, transformar y explotar con éxito el conocimiento externo. No obstante, a pesar de las constantes contribu…

Differences in consumer perspectives how sustainable food consumption is perceived and signalled in the prevailing consumer culture : among Generatio…

2016

This thesis investigates Generation Y sustainable food consumers in the prevailing consumer culture and their differences in signalling and perceiving sustainability. The reasons why they engaged to a sustainable diet and the possible conflicts around it were also studied. Relevant contexts around consumer culture, possessions, identities and Generation Y regarding sustainable food consumption were presented as the theoretical framework. The focus was on Generation Y consumers in order to recognize relevant the contexts that influence their behaviour in the marketplace. Qualitative research methods were utilized as the data was gathered through nine in-depth interviews furthermore applied t…

Vladimír Nabokov a jeho román "Pozvání na popravu" jako skryté poselství o lidském poznání zašifrované v důmyslných gnostických metaforách archetypic…

2015

Comparative assessment of brain activity during depth perception of stereoscopic and volumetric images

2020

Recent advancements in visualization systems have triggered a growing demand for the objective and accurate comparison of user cognitive requirements when perceiving three-dimensional images demonstrated in different ways. In this work, we present the first comparative assessment of brain activity in subjects viewing stereoscopic images and volumetric images. Electroencephalography was employed to assess the short-term changes in event related potentials and neural oscillations which were further interpreted in terms of cognitive requirements for relative depth judgments. As a result, considerably higher activity have been registered in the beta band and gamma band in case of judging relati…

Binocular, Accommodative and Oculomotor Alterations In Multiple Sclerosis: A Review

2020

Multiple sclerosis (MS) is an acquired demyelinating and inflammatory neurodegenerative disease affecting the central nervous system (CNS). Clinical and subclinical ocular disturbances occur in almost all patients with MS. The objective of this narrative review was to collect and summarize the available scientific information on oculomotor, accommodative and binocular alterations that have been reported in MS. A systematic search strategy with the following descriptors was carried out: multiple sclerosis, ocular motility disorders, internuclear ophthalmoplegia, nystagmus, vergences, fixation, pupil reflex, accommodation and stereopsis. According to the search, some oculomotor alterations w…

Monitoring depth of anesthesia with Bispectral Index (BIS) and Narcotrend (NT) during caesarean section

2006

Social research evolution in management accounting : reflection using Bunge’s theory

2004

Abstract Actually Management Accounting is considered for an important group of researchers as a social science. This is a consequence of an evolution from an economic view to social-oriented perspectives. Following Mario Bunge’s theory, we establish that break point in 1980s. Until 1980s, the accounting research was dominated by an economic analysis with both utilitarian and cognitive objectives. The scientific growth was in surface , without any relevant change in the foundations of Management Accounting. The development of new concerns regarding social implications promotes a growth in-depth in the 1980s. Socio-economic analysis, both in interpretative and critical research, is developed…

Diagnostic accuracy of clinical parameters to monitor peri-implant conditions: A matched case-control study

2018

International audience; Background: The aim of this case-control study was to estimate the diagnostic accuracy of the standard clinical parameters in diagnosing healthy peri-implant tissues, peri-implant mucositis, and peri-implantitis.Methods: A case-control study was designed to compare the clinical parameters used in the diagnosis of peri-implant diseases such as: probingdepth (PD), bleeding on probing (BOP), mucosal redness (MR), suppuration (SUP), and plaque index (PI). Furthermore, the influence of patient-(sex, age) and implant-related variables (implant neck configuration, time in function after loading) were evaluated to investigate the association with the clinical findings. The i…