Search results for "Quantitative assessment"

Recovery and stress states: Did perceived control and goal attainment matters during tapering period?

2019

IF: 1.148 (Q2); International audience; We examined whether perceived control predict recovery and stress states during an ecological tapering period of 2-weeks that led to the target competition of the year for 39 expert adolescent swimmers (13 women and 26 men; Mage = 17.56; SD = 2.09 years). Swimmers completed quantitative measures (RESTQ-36-R-Sport; Perceived control; A-SAGS) before (Pre_Tapering) and after (Post_Tapering) the tapering period in order to monitor their recovery and stress states, perceived control and goal attainment. Regression analyses integrated perceived control and goal attainment as explicative variables, and Pre_Tapering covariates were included to the model. One …

Analiza porównawcza wybranych frazeologizmów animalistycznych w trzech językach słowiańskich i w dwóch germańskich

2016

In the contemporary civilization, our world and that of animals merge more and more extensively, and so they are becoming increasingly dependent on each other. On the one hand, human beings - having considered themselves lords of the world - try hard to be as humane as they can towards animals, but on the other - they treat them utterly instrumentally, which is widely reflected, among others, in our languages. This particular observation has served as a basis for the present article. The article - after a concise conceptual part - presents selected fragments (about 40%) of the results of the empirical linguistic research which the author has performed in order to study qualitatively and qua…

A quantitative assessment of intraspecific morphological variation in Gahagan bifaces from the southern Caddo area and central Texas

2019

This investigation aggregates intact or reconstructed Gahagan bifaces from the southern Caddo area and central Texas to test the hypothesis that Gahagan biface morphology differs between the regions. The Gahagan bifaces (n = 102) were scanned, then analysed using a novel landmarking protocol and the tools of geometric morphometrics. Results provide a preview of the significant differences in Gahagan biface morphology expressed between the southern Caddo area and central Texas regions. The size discrepancy represents an inversion of current theoretical constructs that posit a decrease in tool size thought to articulate with an increase in distance from the raw material source. It is posited …

Phantomuntersuchung zur Optimierung der Spiral-CT und 3 D-Rekonstruktion des Tracheobronchialsystems

1996

PURPOSE To optimise three-dimensional spiral CT of the tracheobronchial tree using adequate acquisition and reconstruction parameters for spiral CT of the chest. MATERIAL AND METHODS Qualitative and quantitative assessment of different 3 D reconstructions of two test objects of the tracheobronchial tree depending on section thickness, reconstruction interval, pitch, and reconstruction algorithm used in spiral CT (Siemens, Somatom plus S) of the chest. The frequency of volume and stairstep artifacts was evaluated. The 3 D reconstructions were generated using a seeded VOI-technique (Allegro, ISG). RESULTS Reduction of artifacts was achieved by decreasing section thickness. Increasing overlap …

Quantitative assessment of synchronization during atrial fibrillation by Shannon Entropy characterization of propagation delays

2005

This study introduced a new method for the quantification of the synchronization (S) and the causal verse of activation (S12) in couples of atrial electrograms recorded during atrial fibrillation (AF). The synchronization indexes S and S12 relied on the measure of the propagation delays between coupled activation times in two atrial signals and on the characterization of their dispersion by Shannon-Entropy (SE). S and S12 were validated both on simulated activation time series and endocavitary signals in patients. In simulation, S and S12 were equal to 1 for propagation of one single wavefront in a fully excitable tissue, while they decreased for reentries in partially excitable tissue (S =…

EFSUMB Guidelines 2011: Comment on Emergent Indications and Visions

2012

The focus of this article is the emergent and potential indications of contrast-enhanced ultrasound (CEUS). Emergent applications of CEUS techniques include extravascular and intracavitary contrast-enhanced ultrasound, quantitative assessment of microvascular circulation for tumor response assessment, and tumor characterization using dynamic contrast-enhanced ultrasound (DCE-US). Potential indications for microbubble agents include novel molecular imaging and drug and gene delivery techniques, which have been successfully tested in animal models. "Comments and Illustrations of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) Non-Liver Guidelines 2011" whi…

A mathematical model of cardiovascular dynamics for the diagnosis and prognosis of hemorrhagic shock

2020

Abstract A variety of mathematical models of the cardiovascular system have been suggested over several years in order to describe the time-course of a series of physiological variables (i.e. heart rate, cardiac output, arterial pressure) relevant for the compensation mechanisms to perturbations, such as severe haemorrhage. The current study provides a simple but realistic mathematical description of cardiovascular dynamics that may be useful in the assessment and prognosis of hemorrhagic shock. The present work proposes a first version of a differential-algebraic equations model, the model dynamical ODE model for haemorrhage (dODEg). The model consists of 10 differential and 14 algebraic e…

Quantitative assessment is essential for interpreting lymphoscintigraphy: Response to Ramin Sadeghi's letter to the editor

2019

Quantitative assessment of regularity and synchronization of intracardiac recordings during human atrial fibrillation

2003

This study proposes the morphology-based evaluation of the regularity (R) and the synchronization (S) of intra-atrial electrograms acquired during atrial fibrillation (AF). R is defined as the degree of repetitiveness over time of the shapes of the activation waves detected in single atrial recordings. S accounts for the simultaneous presence of morphologically similar activation waves in two atrial electrograms, and for the dispersion of the propagation delays between the two sites. Both R and S resulted unitary for normal sinus rhythm and decreased significantly moving from atrial flutter (R=0.93, S=0.88) to AF of increasing complexity class (type I AF: R=0.75, S=0.66; type II AF: R=0.32,…