Search results for " Sam"
showing 10 items of 1096 documents
Comparing the Economic Effectiveness of Various Adaptive Schemes for the c Chart
2013
In an attempt to improve the effectiveness of statistical process control (SPC) procedures, a variety of adaptive schemes has been developed in the last decades. However, considering control charts for attributes, relatively few works about adaptive schemes have been proposed, and most of them were proposed only recently. The common characteristic of those schemes is that one or more chart parameters are allowed to adaptively vary during the SPC operations according to the sampling information history, typically the current point plotted on the chart. In this way, the adaptive schemes are smarter than the related static ones, but they are also more complicated in terms of implementation. Th…
Modular Breath Analyzer (MBA): Introduction of a Breath Analyzer Platform Based on an Innovative and Unique, Modular eNose Concept for Breath Diagnos…
2021
Exhaled breath analysis for early disease detection may provide a convenient method for painless and non-invasive diagnosis. In this work, a novel, compact and easy-to-use breath analyzer platform with a modular sensing chamber and direct breath sampling unit is presented. The developed analyzer system comprises a compact, low volume, temperature-controlled sensing chamber in three modules that can host any type of resistive gas sensor arrays. Furthermore, in this study three modular breath analyzers are explicitly tested for reproducibility in a real-life breath analysis experiment with several calibration transfer (CT) techniques using transfer samples from the experiment. The experiment …
Il disegno della ricerca
2008
Il capitolo metodologico illustra i metodi di campionamento utilizzati; gli strumenti di rilevazione dei dati e le tecniche di analisi utilizzati.
Static Digestion Models: General Introduction
2015
Several in vitro methods have been developed to simulate the physiological conditions of the human gastrointestinal digestion, the simplest being the static methods. The following chapter clarifies the concepts of bioaccessibility and dialyzability, and describes the conditions (pH, enzymes, agitation, etc.) to be applied in oral, gastric and intestinal phases when assessing a food component (nutrient, bioactive or toxin) or a food product, in a single or multi-phase model. The advantages and disadvantages of the static models vs. dynamic and in vivo models are discussed, and a review of specific conditions applied on nutrients (minerals, vitamins, proteins, fatty acids, etc.) and bioactive…
Calculation of the Phase Behavior of Lipids
1998
The self-assembly of monoacyl lipids in solution is studied employing a model in which the lipid's hydrocarbon tail is described within the Rotational Isomeric State framework and is attached to a simple hydrophilic head. Mean-field theory is employed, and the necessary partition function of a single lipid is obtained via a partial enumeration over a large sample of molecular conformations. The influence of the lipid architecture on the transition between the lamellar and inverted-hexagonal phases is calculated, and qualitative agreement with experiment is found.
Comparative study of two sample treatments for a liquid chromatography–tandem mass spectrometry determination of mycotoxin biomarkers in urine
2016
The impact of adverse childhood experiences. Evaluation in clinical and non clinical samples using the CECA Interview (Childhood Experience of Care a…
2011
Psychometric properties of the Cyber-Violence Scale in Adolescent Couples (Cib-VPA)
2018
Resumen La utilización que los adolescentes hacen de las redes sociales, móviles e internet, para ejercer violencia hacia la pareja resulta preocupante. Por esta razón, es necesario disponer de instrumentos fiables, específicos para población adolescente y que permitan evaluar tanto situaciones de acoso como de victimización. El objetivo de este estudio fue analizar las propiedades psicométricas de la Escala de Ciber-violencia en Parejas Adolescentes (Cib-VPA). Esta escala consta de dos subescalas, ciberacoso perpetrado y cibervictimización, con 10 ítems cada una relativos a conductas agresivas y de control que pueden ser perpetradas o sufridas a través de redes sociales en parejas adolesce…
First Chemosensor for Selective Detection and Quantification of L-4-Hydroxyproline in Collagen and Other Bio Samples.
2017
Amino pyridine-based rhodamine conjugate (APR) has been developed as a first chemosensor for selective detection and quantification of L-4-Hydroxyproline (Hyp). The “turn-on” fluorescence property of the chemosensor makes it unique for easy estimation of Hyp in collagen and biological samples. peerReviewed