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Juan Murillo-Morera, Carlos Castro-Herrera, Javier Arroyo, Ruben Fuentes-Fernandez
Pág. 114 - 137
Today, it is common for software projects to collect measurement data through development processes. With these data, defect prediction software can try to estimate the defect proneness of a software module, with the objective of assisting and guiding so...
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Gabriel Valerio-Ureña, Dagoberto Herrera-Murillo and Sergio Madero-Gómez
Universities are becoming aware of the importance of social networking sites for the reinforcement of their institutional brands. This study was conducted to analyze the extent to which best-ranked universities use social networking sites. A quantitative...
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Esperanza Herrera-Torres, Manuel Murillo, Leslie Berumen, Nicolás Soto-Cruz, Jesús Paez-Lerma
Pág. 113 - 120
Opuntia ficus-indica is used in animal feed but has a low protein content (above 4%) in comparison to high-quality forage (above 16%). It isnecessary to develop technologies that improve the nutrimental value of Opuntia ficus-indica through the process ...
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Osvaldo Reyes, Manuel Murillo, Esperanza Herrera, Francisco O. Carrete
Pág. 203 - 212
The objective of this study was to determine and compare seasonally the chemical composition, in vitro gas production, in situ degradability and ruminal fermentation of the diet selected by cattle grazing on native rangeland over two years. Diet samples ...
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J. HERRERA MURILLO,J. F. ROJAS MARÍN,S. RODRÍGUEZ ROMÁN,A. P. BAEZ PEDRAJO
Measurements of metals and inorganic ions were carried out on PM10. Sampling was made in five sites distributed in San José, Heredia and Belén cities. Samples were collected using Thermo Andersen PM10 high volume samplers with glass fiber and quartz filt...
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J. HERRERA MURILLO,J.F. ROJAS MARÍN,S. RODRÍGUEZ ROMÁN,R. GARCÍA MARTÍNEZ
The analysis of PM10 levels in two sites of the city of San José (Catedral Metropolitana and Junta de Educación), in a period of 2.5 years (April 2004-October 2006), reported a median of 39 ± 8 and 27 ± 8 µg m-3, respectively. In addition, SO42-, NO3- an...
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