El papel de la memoria de trabajo en el cálculo mental un cuarto de siglo después de Hitch = The role of working memory in mental arithmetic a quarter of century after Hitch

Desde que Hitch (1978) publicó el primer estudio sobre el rol de la memoria de trabajo en el cálculo han ido aumentando las investigaciones en este campo. Muchos trabajos han estudiado un único subsistema, pero nuestro objetivo es identificar qué subsistema de la memoria de trabajo (bucle fonológico, agenda viso-espacial o ejecutivo central) está más implicado en el cálculo mental. Para ello hemos realizado un estudio correlacional en el que hemos administrado dos pruebas aritméticas y nueve pruebas de la “Bateria de Test de Memòria de Treball” de Pickering, Baqués y Gathercole (1999) a una muestra de 94 niños españoles de 7-8 años. Nuestros resultados indican que el bucle fonológico y sobretodo el ejecutivo central inciden de forma estadísticamente significativa en el rendimiento aritmético

Creative Commons and 21st Century Distribution

Slides for a Level 3 Digital Practice and Theory lecture on using CC, promoting your work and ways to get it out there, some demonstration on the economic value of sharing.

Lessons in psychology – Colombia Nineteenth Century

Manuel Ancízar published in 1851 his Lectures on Psychology. The text has been a representative of the interests of Colombian intellectuals of the time for discipline. The treatise of the history of psychology Colombia have considered the nineteenth century as a period characterized by a poorly conceived attempt to import some emerging professional practices of psychiatric and educational type. However, the work of Ancízar showed large exhibition on the subject matter of psychology: human consciousness and the theories that support the formation of the new science. The core of the work is oriented towards the secular drama, against which Ancízar defended the supernatural origin and nature of the human soul. The author introduced an eclectic psychology in which, the secular orientation of modern ideas are integrated with the conception of the soul as a divine gift. The reading of the work has been outstanding and indispensable work for understanding ancient and autochthonous forms of access to psychological issues.

Structural Crystallography Development in the 20th Century. Impact in the Biomedical Sciences and Perspectives in this Field

--

The effect of the occupational mortality over the economy. Magdalena’s Fevers and tobacco farming in Colombia in XIX century

It is aimed at reviewing the effect reflected in the quality and quantity of tobacco exportation with the appearance of Magdalena Fevers in the Ambalema zone (Colombia), between 1856 and 1870. The research explores the effect of labor over health and the effect of health over labor in this stage of the Colombian export development. By formulating an econometric model it is possible to establish whether the epidemic outbreaks of fevers were a relevant factor in explaining the behavior of tobacco exports from Ambalema to the outside. The analysis of the empirical data shows that it is possible that a fall on the exports in about 72,000 tobacco sacks per year caused by the fevers in the studied region, as well as a negative effect of the disease on the tobacco prices.

The City Passing by the River. The San Francisco River Canalization and Construction of Avenida Jiménez de Quesada in Bogota at the Beginning of the 20th Century

The document refers to the San Francisco river canalization and subsequent construction of the Avenida Jiménez de Quesada. Understanding that the project was ascribed to the modernizing policy of the time, the investigation identifies the different stages in the canalization process, and shows its relations with the spatial structure of the city and the local conditions that developed on the river surroundings. The financing of the project through the “property increase duty” permits an illustration of the progress of canalization and construction of the Jiménez Avenue process, providing a less technical and more social meaning to the sequence in which the project executed. Consequently, the document approaches the shaping dynamics of Bogotá´s spatial structure at the beginning of the XX century.

Informal housing in the XXI century. Characteristics of the informal land and housing supply in Bogota during the first decade of the XXI century

This article characterizes the conditions of the informal land and housing supply during the first decade of the xxi century in Bogota, regarding magnitude and location of the informal urban growth (new occupations in the periphery and informal densification of consolidated areas), housing  conditions in recent occupations and the characteristics of the land market. The situation of the  last decade has been reconstructed based in aerial photography analysis, census data quantification  and data analysis from planning and control public entities. Results suggest that due to the relative  land scarcity in Bogotá, among other aspects, the informal market dynamics have experimented changes compared to previous decades, because the growth in consolidated urban areas becomes  more important than the informal urbanization of the peripheries, but at the same time informality  transcends the municipal perimeter to the neighboring municipalities.