Search results for "statistical analysis"
showing 10 items of 390 documents
An adaptive display to treat stress-related disorders: EMMA's World
2009
ABSTRACT Most of the virtual environments currently available in the field of psychological treatments were designed to solve a specific problem. Our research group has developed a versatile virtual reality system (an adaptive display) called ‘EMMA's world’, which can address a wide range of problems. It was designed to assist in clinical situations where a person has suffered a stressful experience, for example post-traumatic stress disorder, adjustment disorder, and pathological grief. To accomplish therapeutic goals, a series of emotional virtual elements are used and personalised so that they are meaningful to the user and contain the fundamental emotional elements that the person must …
Comparison between two five year periods (1998/2002 and 2003/2007) on the production, impact and co-authorship of publications on tobacco and smoking…
2010
Abstract Objective The aim of this study was to compare the production, impact and co-authorship of publications by Spanish authors on smoking and tobacco between two time periods (1998/2002 vs. 2003/2007) using Science Citation Index (SCI). Methods The literature search was performed in the SCI-Expanded on 20 November 2008. All types of documents by Spanish authors were selected. The search was restricted to the title, and the key words used were “smok*” and “tobac*”. The statistical analysis was descriptive (95% CI). Results A total of 588 documents were retrieved, with 399 (67.85%) original papers, 54 (9.18%) letters to the editor and 35 (5.95%) editorials. Productivity increased from th…
[Evolution and scientific impact of research grants from the spanish society of cardiology and spanish heart foundation (2000-2006)].
2011
Abstract Introduction and objectives The Sociedad Espanola de Cardiologia (Spanish Society of Cardiology) every year awards grants to finance research in the field of cardiovascular diseases. The aim of this study is to identify the impact of these investments during the period 2000-2006 from the subsequently published articles in scientific journals. Methods Using the identifying data of each project as search terms, all articles that resulted from these grants were located in the Spanish Indice Medico Espanol and Indice Bibliografico Espanol en Ciencias de la Salud databases, and in Science Citation Index-Expanded and Scopus. Descriptive statistical analysis of these articles included typ…
Ventilación asistida vía máscara nasal en pacientes hospitalizados en una sala de neumología por descompensación de su obstrucción crónica al flujo a…
1995
Our aim was to evaluate the efficacy of assisted ventilation through a nasal mask (AVN) in treating chronic obstructive pulmonary disease (COPD) patients who were admitted to a pneumology ward due to decompensation, with PaCO2 > 60 mmHg and pH < 7.35. We studied 13 COPD patients who were first observed for 1-2 days until adaptation and then given 2 daily sessions of AVN lasting 4 hours with double positive pressure (DP90) devices through Sullivan mask with a cannula for hyperoxia. Gasometric readings were recorded, along with subjective assessment of condition and problems with the mask. Gasometric readings were taken as follows: the first upon admission to the ward (AW), the second with AV…
Statistical guidelines for quality control of next-generation sequencing techniques.
2021
Condition-specific statistical guidelines and accurate classification trees for quality control of functional genomics NGS files (RNA-seq, ChIP-seq and DNase-seq) have been generated using thousands of reference files from the ENCODE project and made available to the community.
Monitoring of chicken meat freshness by means of a colorimetric sensor array
2012
A new optoelectronic nose to monitor chicken meat ageing has been developed. It is based on 16 pigments prepared by the incorporation of different dyes (pH indicators, Lewis acids, hydrogenbonding derivatives, selective probes and natural dyes) into inorganic materials (UVM-7, silica and alumina). The colour changes of the sensor array were characteristic of chicken ageing in a modi¿ed packaging atmosphere (30% CO2¿70% N2). The chromogenic array data were processed with qualitative (PCA) and quantitative (PLS) tools. The PCA statistical analysis showed a high degree of dispersion, with nine dimensions required to explain 95% of variance. Despite this high dimensionality, a tridimensional re…
VAS and PAQLQ association with level of asthma control by using C-ACT
2015
Background: PAQLQ and C-ACT are standardized tool for assessment quality of life and asthma control in children.VAS (Visual Analogic Scale) is a scale for evaluation of the general wellness at the time of visit. Aim: To assess the relationships between VAS, PAQLQ and CACT in order to discriminate Controlled by Uncontrolled ones. Method: Cross-sectional study on 169 asthmatic children aged 5-11 yrs consecutively enrolled from Sept 2011 to Dec 2014 were studied. The Italian version of C-ACT and PAQLQ questionnaire were administered at baseline. Well controlled (WC) asthma and Uncontrolled/Partially controlled (UPC) resulted from C-ACT score >19 and ≤19, respectively. Total score of PAQLQ r…
Unsupervised quantitative methods to analyze student reasoning lines: Theoretical aspects and examples
2019
[This paper is part of the Focused Collection on Quantitative Methods in PER: A Critical Examination.] A relevant aim of research in education is to find and study the reasoning lines that students deploy when dealing with problematic situations. This can be done through an analysis of the answers students give to a questionnaire. In this paper, we discuss some methodological aspects involved in the quantitative analysis of a questionnaire by means of two different clustering methods, a hierarchical one and a nonhierarchical one. We start from the coding procedures needed to obtain analyzable data from the questionnaire and from a definition of a correlation coefficient suitable for measuri…
Measuring KS0K± interactions using Pb–Pb collisions at sNN=2.76 TeV
2019
We present the first measurements of femtoscopic correlations between the KS0 and K± particles in pp collisions at s=7 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding solely via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters for KS0K− are found to be equal within the experimental uncertainties to those for KS0K+ . Results of the present study are compared with those from identical-kaon femtoscopic studies also performed with pp collisions at s=7 TeV by ALICE and with a KS0K± measurement in Pb–Pb collisions at sNN=2.76 TeV. Combined with the Pb–Pb results, our pp a…
Soil erosion modelling: a global review and statistical analysis
2021
40 Pags.- 10 Figs.- 2 Tabls.- Suppl. Informat. The definitive version is available at: https://www.sciencedirect.com/science/journal/00489697