La reserva de la biosfera Tehuacán-Cuicatlán (BRTC) posee gran diversidad de mamíferos, pero la información sobre distribución geográfica es incompleta para la mayoría de las especies. Esto ha representado una dificultad en esfuerzos previos para modelar el nicho ecológico y…

Little work has been yet done to analyse if e-learning is an efficiency way in economic terms to produce higher education, especially because there are not available data in official statistics. Despite of these important constrains, this paper aims to…

Carbones de las zonas de mayor explotación carbonífera de Colombia fueron estudiados por ATR en el infrarrojo medio. Se presentan el análisis próximo y último de los carbones. Para cada muestra se obtuvieron parámetros estructurales como relación metileno/metilo (CH2/CH3), factor…

In some industries such as logistics services, bank services, and others, the use of automated systems that deliver critical business information anytime and anywhere play an important role in the decision making process. This paper introduces a “Generic model to…

When users search for information in a web site, sometimes they do not get what they want.
Assuming that the scope where the search take place works fine, there are some problems caused by the way the user interact with…

Los resultados obtenidos mediante el Análisis Canónico en 32
muestras poblacionales pertenecientes a 24 taxones, que corresponden
a 14 grupos de Bechyné (1948), proporcionan pruebas acerca del
estado taxonómico y evolutivo en múltiples taxones de Timarcha. Los
datos biométricos se…

The fact that nutrition affects education outcomes is accepted by researchers and by policy makers. It is simple. Children cannot learn if they are hungry. The validity of the empirical approaches used to show a causal relationship from nutrition to…

This study explored the relationship between male and female dance partners. Participants were 171 Hungarian competitive dancers. The study focused on how the competitors view their own partnership (how they define this relationship), how important they consider it for success,…

DATA QUALITY IS DEGRADED DURING THE PROCESS OF EXTRACTING AND MERGING DATA FROM MULTIPLE HETEROGENEOUS SOURCES. BESIDES, USERS HAVE NO INFORMATION REGARDING THE QUALITY OF THE ACCESSED DATA. THIS DOCUMENT PRESENTS THE METHODS UTILIZED TO ASSESS DATA QUALITY AT MULTIPLE…

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