University of Córdoba (Spain)

About: University of Córdoba (Spain) is a education organization based out in Cordova, Spain. It is known for research contribution in the topics: Population & Catalysis. The organization has 12006 authors who have published 22998 publications receiving 537842 citations. The organization is also known as: University of Córdoba (Spain) & Universidad de Córdoba.

A collaborative educational association rule mining tool

Abstract: This paper describes a collaborative educational data mining tool based on association rule mining for the ongoing improvement of e-learning courses and allowing teachers with similar course profiles to share and score the discovered information. The mining tool is oriented to be used by non-expert instructors in data mining so its internal operation has to be transparent to the user and the instructor can focus on the analysis of the results and make decisions about how to improve the e-learning course. In this paper, a data mining tool is described in a tutorial way and some examples of rules discovered in an adaptive web-based course are shown and explained.

Defining pollen exposure times for clinical trials of allergen immunotherapy for pollen-induced rhinoconjunctivitis - an EAACI position paper.

Abstract: Background Clinical efficacy of pollen allergen immunotherapy has been broadly documented in randomized controlled trials. The underlying clinical endpoints are analysed in seasonal time periods pre-defined on the basis of the background pollen concentration. However, any validated or generally accepted definition from academia or regulatory authorities for this relevant pollen-exposure intensity or period of time (season) is currently not available. Therefore, this Task Force initiative of the European Academy of Allergy and Clinical Immunology (EAACI) aimed to propose definitions based on expert-consensus. Methods A Task Force of the Immunotherapy and Aerobiology and Pollution Interest Groups of the EAACI reviewed the literature on pollen-exposure in the context of defining relevant time intervals for evaluation of efficacy in allergen immunotherapy trials. Underlying principles in measuring pollen exposure and associated methodological problems and limitations were considered in order to achieve a consensus. Results The Task Force achieved a comprehensive position in defining pollen exposure times for different pollen types. Definitions are presented for ‘pollen season’, ‘high pollen season’ (or ‘Peak pollen period’) and ‘high pollen days’. Conclusion This EAACI position paper provides definitions of pollen exposures for different pollen types for use in Allergen Immunotherapy trials. Their validity as standards remains to be tested in future studies. This article is protected by copyright. All rights reserved.

A Comparative Analysis of Daily Variations in the Gramineae Pollen Counts at Córdoba, Spain and London, UK

Abstract: The features of five grass pollen seasons from two areas of contrasting climate were investigated and the relative importance of the variables controlling daily variations were determined. The records from London, UK (temperate maritime climate) and Cordoba, Spain (mediterranean climate) were analysed in relation to meteorological factors. The length of the seasons differs a great deal between the two locations and from year to year. However the total cumulative catches and the number of days with counts over 50 grains metre-3 are similar for the two locations. Regression analysis of standardised daily average pollen counts shows clearly that for London, maximum and average temperatures are the most important factors influencing daily variation. In the case of Cordoba this relationship holds true for the period from the start of the season until the peak count, but after this the relationship becomes negative. Hours of sunshine and humidity are also important. The negative effect of increased hum...