Search results for "testing"

Fibre fragment distribution in a single-fibre composite tension test

2001

Abstract Single fibre fragmentation tests are performed for brittle fibres with Weibull strength distribution and different surface treatments. The fragmentation process is modelled and closed-form expressions for break spacing distribution are obtained. The model accounts for the effect of finite fibre length on the initial fragmentation as well as for break interaction on the advanced fragmentation stage. It is assumed that the exclusion zone due to fibre–matrix interface failure and stress recovery in the fibre is linearly dependent on the applied load. This assumption is validated experimentally. The derived theoretical average fragment length dependence on applied load is used to deter…

Analysis of a database to predict the result of allergy testing in vivo in patients with chronic nasal symptoms.

2014

Background This article uses the logistic regression model for diagnostic decision making in patients with chronic nasal symptoms. We studied the ability of the logistic regression model, obtained by the evaluation of a database, to detect patients with positive allergy skin-prick test (SPT) and patients with negative SPT. The model developed was validated using the data set obtained from another medical institution. Methods The analysis was performed using a database obtained from a questionnaire administered to the patients with nasal symptoms containing personal data, clinical data, and results of allergy testing (SPT). All variables found to be significantly different between patients w…

Inventory of Testing Ideas and Structuring of Testing Terms

2013

This is a preprint of the paper submitted for publication in "Baltic Journal of Modern Computing".

Efecto de las Características del Problema, Captación de su Estructura y Uso de Analogías sobre el Éxito de los Estudiantes de Secundaria en la Resol…

2015

This study analyses the influence of academic level, academic itinerary, word problem’s context and structure, capturing problem structure, and using analogies on problem-solving. A factorial design was used with one within-subjects variable and several between-subjects variables, which have been selected depending on the hypothesis in question. Two types of booklets containing two word problems and questions about capturing problem structure and using analogies in problem solving, were administered to a total of 181 grade-10 and grade-12 students. The results of non-parametric statistical tests showed that: a) Academic level and academic itinerary are decisive variables in problem solving,…

Models and methods for space and space-time interactions in complex point processes with applications on earthquakes

A case formulation model for the assessment of psychological problems among deafblind persons

2012

In order to describe and understand possible problems associated with deafblindness we applied a functional analysis case formulation strategy and Functional Analytic Clinical Case Diagrams (FACCD). We collected clinical assessment data from deafblind persons who were experiencing multiple psychological problems as reported by their healthcare professionals. The data were collected after the healthcare professionals were trained in functional analyses and in applying FACCD. The 21 deafblind persons assessed by healthcare professionals were reported to have 3–11 psychological problems. Two case examples are given to illustrate the complexity of a deafblind person's life situation and the fun…

Statistical analysis of the relation between metallic microstructures and mechanical properties

2020

This thesis aims at the development of physical relations between the intricate 3D features of metallic microstructures and the mechanical properties of the material. For understanding which are the microstructural determinants of the resultingmechanical behaviour of metals, a deep quantitative characterisation of the microstructure is needed. The main steps of quantitative characterisation of the microstructures are: identification of the phases distribution and their chemical composition, study of the microstructure morphology (geometrical arrangement of grains, grain boundaries, grain orientations, grain size and grain shape). An accurate description of the microstructure features enrich…

Optical quality of hyperopic and myopic phakic intraocular lenses

2013

Aims: To assess and compare the optical quality of the myopic and hyperopic implantable collamer lens (ICL) from its wavefront aberrations for different powers and pupil diameters. Settings and Design: Prospective study. Material and Methods: The wavefront aberrations of two myopic (−3 and −6 diopters (D)) and two hyperopic V4b ICLs (+3 and +6D) were measured in vitro . To assess and compare the optical quality of different powers of ICLs, we analyzed the root mean square (RMS) of total higher order aberrations (HOAs), trefoil, coma, tetrafoil, secondary astigmatism, and spherical aberration at 3- and 4.5-mm pupil. In addition, the point spread functions (PSFs) of each ICL evaluated were ca…

Inflammatory response elements, glycan, and proteome profiles as salivary biomarkers for the early diagnosis of OSCC

2021

El cáncer oral, sobre todo el, carcinoma oral de células escamosas (COCE), es la neoplasia maligna más común en la cavidad oral que se caracteriza por un mal pronóstico y una baja tasa de supervivencia, cuando se diagnostica en estadios avanzados. Puede ser tratado de forma efectiva si se detecta en estadios iniciales, mejorando el pronóstico. Por tanto, tras la prevención, el diagnóstico precoz se ha convertido en el principal objetivo en el manejo del cáncer oral, dado su impacto positivo en la supervivencia y calidad de vida de estos pacientes. A menudo, los escasos síntomas iniciales pasan desapercibidos y la enfermedad se descubre en fases avanzadas, por lo que se requiere mejorar el d…

Can a cheat sheet in an EFL test engage and empower students?

2015

Although occasionally used in language classrooms, cheat-sheet tests have not been explored in foreign or second language education research. This study experimented with cheat-sheet tests in the teaching of EFL in a Finnish upper secondary school. The participants, 101 students, could make a cheat sheet for the grammar part of their English test. A total of 92 students prepared the cheat sheet, nine did not. Students’ cheat sheets, test results and comments constituted the data for this study, analysed both qualitatively and quantitatively. The existence of the cheat sheet and its quality (thorough, good or limited) correlated with the grammar test results: students with a thorough cheat s…