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Copyright of DYNA - Ingeniería e Industria is the property of Publicaciones Dyna SL and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Facultad de Ciencias Economicas: Investigacion y Reflexion is the property of Revista Facultad de Ciencias Economicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cultura, Ciencia y Deporte is the property of Cultura, Ciencia y Deporte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archivos Latinoamericanos de Nutrición is the property of Sociedad Latinoamericana de Nutricion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Biologia Marina y Oceanografía (RBMO) is the property of Universidad de Valparaiso, Facultad de Ciencias del Mar and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Politica y Sociedad is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Scholars have disputed the location of Columbus's 1492 landfall site for hundreds of years, practically since the actual landfall itself. Archaeological excavations conducted by Charles A. Hoffman, Jr. in the early 1980s at the late prehistoric/contact period Long Bay site (SS-9) on San Salvador, Bahamas revealed a suite of early European colonial artifacts, many of which have been sourced to Spain by both lead isotope and stylistic analyses. Additionally, the island of modern-day San Salvador meets the general descriptions of the island originally named "Guanahani" in the Native American Lucayan language, subsequently christened "San Salvador" by Columbus when he officially claimed the island for Spain on October 12, 1492. Historical artifacts from the Long Bay site match the descriptions of artifacts traded to the local Lucayans as described in Columbus's Diario or daily ship's log. The simplest explanation for the presence of late fifteenth century artifacts on San Salvador is that Columbus and his crew traded these artifacts to the Lucayans as Columbus himself described in his Diario of 1492. [ABSTRACT FROM AUTHOR]

A neuroethological approach to human and nonhuman primate behavior and cognition predicts biological specializations for social life. Evidence reviewed here indicates that ancestral mechanisms are often duplicated, repurposed, and differentially regulated to support social behavior. Focusing on recent research from nonhuman primates, we describe how the primate brain might implement social functions by coopting and extending preexisting mechanisms that previously supported nonsocial functions. This approach reveals that highly specialized mechanisms have evolved to decipher the immediate social context, and parallel circuits have evolved to translate social perceptual signals and nonsocial perceptual signals into partially integrated social and nonsocial motivational signals, which together inform general-purpose mechanisms that command behavior. Differences in social behavior between species, as well as between individuals within a species, result in part from neuromodulatory regulation of these neural circuits, which itself appears to be under partial genetic control. Ultimately, intraspecific variation in social behavior has differential fitness consequences, providing fundamental building blocks of natural selection. Our review suggests that the neuroethological approach to primate behavior may provide unique insights into human psychopathology. [ABSTRACT FROM AUTHOR]

The article presents information on the historical documentary entitled "La Palabra en el Bosque" ("The Word in the Forest"), directed by Jeffrey Gould and Carlos Henríquez Consalvi, within the context of understanding the importance of oral history and collective memory. The documentary focuses on followers of liberation theology, known in Spanish as the Comunidades Cristianas de Base, in El Salvador during the first years of the 1970s. Both the documentary and the article stress the importance of historical analysis as part of forming a cultural identity.

The current influenza A H1N1 epidemic has demonstrated once again the importance of being able to count on robust, coordinated, and comprehensive public health systems. Countries that do rely on such health systems have proven to recognize, diagnose, and treat influenza in a timely manner, and to provide the public with the education needed to minimize the number of deaths and acute cases. The International Association of National Public Health Institutes (IANPHI) recommends that all countries begin to coordinate their national public health efforts. IANPHI offers its support and guidance to all who would create or strengthen their national public health institutes. By strengthening national public health systems, the ability to collaborate and the security of all countries is heightened. These institutions exist for the public good, and any improvements made to them are also a contribution toward better health for the population. [ABSTRACT FROM AUTHOR]

Copyright of Estudios Centroamericanos is the property of Universidad Centroamericana Jose Simeon Canas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The article presents information regarding the differences between free-standing gold mining companies from Great Britain during the Venezuelan gold rush in both the late 19th and late 20th centuries. The author highlights various factors which led to the loss of capital and productive development, including a lack of mining expertise and influences from misinformed investors. The work investigates several sources in order to make comparisons with the economic situations of other countries which have hosted free-standing companies.

Wayne Fenton fue uno de los principales promotores que impulsaron el establecimiento de los mecanismos de los proyectos MATRICS (Measurement and Treatment Research to Improve Cognition in Schizophrenia) y TURNS (Treatment Units for Research on Neurocognition and Schizophrenia). Estos proyectos se diseñaron para facilitar el desarrollo de nuevos fármacos en el tratamiento de trastornos cognitivos en personas con esquizofrenia. El proyecto MATRICS identificó tres mecanismos farmacológicos de especial interés: colinérgicos, dopaminérgicos y glutamatérgicos. El proyecto TURNS se ha diseñado para seleccionar los posibles agentes que mejoran la cognición y evalúan su posible eficacia en el contexto de ensayos de demostración de la hipótesis o de clínicos de eficacia. Este artículo revisa los fundamentos de estos tres planteamientos y ofrece una actualización del desarrollo de agentes terapéuticos que actúan a través de estos mecanismos. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Historia is the property of Universidad de Costa Rica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Antropología Social is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)