Search results for "Measurement"

Focal liver lesions: interobserver and intraobserver agreement of three-dimensional contrast-enhanced ultrasound-assisted volume measurements

2021

Purpose: This study was conducted to assess the interobserver and intraobserver agreement of three-dimensional contrast-enhanced ultrasound (3D-CEUS) volume calculations of focal liver lesions (FLLs).Methods: Thirty-nine patients (15 men and 24 women; mean age, 55.4 years) with 39 Flis (mean size, 3.1 +/- 1.8 cm; size range, 1 to 8 cm) prospectively underwent 3D-CEUS. Four readers calculated the volume of each lesion in an independent and blinded fashion in two separate sessions by means of a semi-automatic, commercially available proprietary software. The differences in lesion volumes (cm(3)) among sessions and readers were assessed using the Mann-Whitney U test and the Kruskal-Wallis test…

Intra‐ and inter‐instrument reliability of the Actiwatch 4 accelerometer in a mechanical laboratory setting.

2012

Intra- and Inter-Instrument Reliability of the Actiwatch 4 Accelerometer in a Mechanical Laboratory Setting This study aimed to quantify the intra-and inter-instrument reliability of the Actiwatch 4 accelerometer (AW4) in a mechanical setting. Twenty seven AW4 were attached to an isokinetic dynamometer and subjected to angular acceleration for 30 min at 50 deg/sec representing moderate intensity (MPA condition) and 200 deg/sec representing vigorous intensity (VPA condition), with a repeat trial conducted. Reliability was assessed using coefficient of variation (CV), absolute percent error (APE), and intraclass correlation coefficients (ICC). Mean AW4 activity counts displayed acceptable rel…

Gas-phase ion chemistry of protonated melatonin

2009

The gas-phase ion chemistry of protonated melatonin has been investigated by mass spectrometric (MS) techniques involving chemical ionisation, fast atom bombardment and electrospray ionisation. Either naturally-occurring or collision-induced decomposition experiments have been carried out using side chain tetra-deuterium-labelled derivatives, as well as the corresponding N–D derivatives obtained by exchange with D2O. The analysis of experimental results allows definite pathways for the formation of the ion at m/z 174 to be assigned and sheds some more light on the overall fragmentation pathways. Experiments on labelled derivatives evidenced H–D scrambling processes during fragmentation.

Study of a chromia-forming alloy behavior as interconnect material for High Temperature Vapor Electrolysis

2011

In High Temperature Vapor Electrolysis (HTVE) system, the materials chosen for the interconnectors should have a good corrosion behaviour in air and in H2-H2O mixtures at 800°C, and keep a high electronic conductivity over long durations as well. In this context, the first goal of this study was to evaluate a commercial ferritic alloy (the K41X alloy) as interconnect for HTVE application. Oxidation tests in furnace and in microbalance have therefore been carried out in order to determine oxidation kinetics. Meanwhile, the Area Specific Resistance (ASR) was evaluated by Contact Resistance measurements performed at 800°C. The second objective was to improve our comprehension of chromia-formin…

Evaluation of Psychometric and Linguistic Properties of the Italian Adolescent Pain Assessment Scales: A Systematic Review

2018

Introduction: Adolescents’ pain experiences are complex and multidimensional, and evaluating pain only from a sensory and affective point of view may be in many instances limiting and inadequate; this is the reason why it is of paramount importance to identify the tools which can better assess the pain experienced by young patients. A person-oriented approach is highly encouraged, as it may better investigate the cognitive and behavioral development typical of this age group. The aim of this review paper is to describe the available tools which are able to adequately assess pain intensity in adolescents, in particular those validated in Italian. Methods: We conducted a systematic review usi…

Le paradoxe du seuil de pauvreté endogène dans les indices de pauvreté

2007

Justice et inégalités: un amendement à la théorie de John Rawls

1992

National audience; On se demande si les principes de justice de Rawls ne sont pas exagérément inégalitaires, malgré leur côté "juste". On examine donc ce qu'il advient de l'optimum de Rawls, le maximin, quand de l'aversion pour l'inégalité" apparaît. Le maximin consiste à se placer sur un certain point de la courbe d'efficience, en admettant une certaine dose d'inégalité, pourvu que l'on donne le maximum possible aux plus défavorisés. On tient compte d'externalités en reprenant la notion d'envie sous la forme d'une aversion pour l'inégalité, essentiellement de la part des plus défavorisés. On ne peut plus raisonner sur la courbe frontière des rémunérations possibles et on démontre la validi…

Sub-percent precision measurement of neutrino oscillation parameters with JUNO

2022

Combined fuzzy TOPSIS and AHP-based methodology for the prioritization of maintenance key performance indicators: Application to an oil refinery plant

2017

A Maintenance Performance Measurement model based on the use of Maintenance Key Performance Indicators (MKPIs) is proposed in the present paper. Referring to a specific industrial context, a multi-level hierarchical structure is firstly designed to highlight the most meaningful perspectives which affect the maintenance performance. Then, MKPIs selected from the literature or properly formulated to detail some particular perspective of the investigated maintenance process are assigned to the hierarchical framework and prioritized by a Fuzzy Technique for Order of Preference by Similarity to Ideal Solution (FTOPSIS) and Analytic Hierarchy Process (AHP)-based approach.

Communication Gaps in Disaster Management: Perceptions by Experts from Governmental and Non-Governmental Organizations

2011

The complexity of current disasters creates a challenge for crisis communication. This paper aims at identifying gaps in communication in disaster management experienced in practice in order to facilitate learning from those situations. The research was conducted using a qualitative online open-ended questionnaire. It shows that despite the developments in the discipline, communication as an integral part of decision making in disaster management needs to be further developed. The paper provides a practical-oriented overview of the communication constraints in complex crisis situations, which has not been provided so far. This research is part of an international project developing performa…