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Copyright of Investigaciones Historicas is the property of Universidad de Valladolid, Facultad de Filosofia y Letras 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 Etudes Romanes de Brno is the property of Masaryk University, Faculty of Arts 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 Ge-Conservación is the property of Instituto del Patrimonio Cultural 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 Zeledonia is the property of Asociacion Ornitologica 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 Studia Histórica: Historia Moderna is the property of Ediciones Universidad de Salamanca 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 Spal: Revista de Prehistoria y Arqueologia de la Universidad de Sevilla is the property of Spal. Revista de Prehistoria y Arqueologia de la Universidad de Sevilla 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 Cuaternario y Geomorfología is the property of Cuaternario y Geomorfologia 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 Biogeochemistry, an interdisciplinary science founded by Vladimir Vernadsky in 1926, provides the basic knowledge for understanding the physicochemical and biologic processes which govern the component composition of the natural environ at the different spheres of the earth. This science is related with the atmosphere sciences, biology, environmental chemistry, geology, ecology, soil sciences and oceanography. In this work, some examples of biogeochemical processes which occur at the hydrosphere in extreme conditions as hydrothermal systems, saline lagoon and coastal saline with the participation of saprophytic bacteria and micro alga are shown. [ABSTRACT FROM AUTHOR]

In the late 1980s C. Christopher Soufas claimed that critics had studied the poetry of the so-called 'Generación del 27' without reference to its historical context or the artistic and philosophical debates that took place in Europe as well as in Spain during the first quarter of the twentieth century. Bearing in mind the point made by Soufas, the aim of this article is to suggest an interpretation of La voz a ti debida (1933) which differs from the existing ones in that it places Salinas's poem firmly within the framework of one of the most important philosophical debates that took place in Europe in the first quarter of the last century: the debate on the life-culture or life-reason dichotomy, to which Ortega made an outstanding contribution. [ABSTRACT FROM AUTHOR]

Copyright of Espacio, Tiempo y Forma. Serie III, Historia Medieval is the property of Editorial UNED 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 Biogeochemistry, an interdisciplinary science founded by Vladimir Vernadsky in 1926, provides the basic knowledge for understanding the physicochemical and biologic processes which govern the component composition of the natural environ at the different spheres of the earth. This science is related with the atmosphere sciences, biology, environmental chemistry, geology, ecology, soil sciences and oceanography. In this work, some examples of biogeochemical processes which occur at the hydrosphere in extreme conditions as hydrothermal systems, saline lagoon and coastal saline with the participation of saprophytic bacteria and micro alga are shown. [ABSTRACT FROM AUTHOR]

The supplying of salt in sufficient amounts was one of the main concerns of the Town hall of Buenos Aires. This was a product of vital importance not only due to its usage in daily meals, but also because of its application in the conservation of the meat and leather. Such features, and the difficulties to obtain it, increased not only its commercial but also its strategic value. The discovery of local deposits allowed the inhabitants of Buenos Aires to supply themselves through periodic expeditions that were promoted by the authorities, which allowed them to exert a greater control on this production. Since the activity required an important manual labor and cargo capacity, it was a practice that many took advantage of to be employed and to obtain benefits with the commerce that was generated by such opportunity. This turned the expeditions to salt mines -organized by the authorities of the city- into great caravans that went into indigenous territory, involving a wide set of social actors from the countryside and the indigenous world. [ABSTRACT FROM AUTHOR]

In this work, we compared the proportion of proteins, lipids, carbohydrates and fatty acids in populations of Artemia sp. from the Araya saltworks in northeastern Venezuela, during two stages (nauplii and metanauplii) of their development. The population of Artemia franciscana from San Francisco Bay (USA) was used as reference because of its wide use in aquaculture. The organisms of both populations showed significant differences in protein, lipid, carbohydrate and phospholipid contents between both stages; however, no significant differences were established between both populations. The highest protein concentrations were found in metanauplii: 67% for Araya and 56% for San Francisco. The highest concentrations of lipids (22% and 24%), carbohydrates (17% and 11%) and phospholipids (26% and 35%) were found in nauplii for both populations. Cholesterol esters, cholesterol, triglycerids, and n-3 and n-6 fatty acids were significantly different between stages and between populations. Cholesterol esters, and n-3 and n-6 fatty acids were higher in San Francisco metanauplii, with values of 37%, 11% and 7%, respectively. The highest triglycerid concentration (39%) was found in San Francisco nauplii and the highest cholesterol concentration in Araya metanauplii (50%). The results suggest that the Artemia population from the Araya saltworks contains the necessary elements to cover the nutritional requirements of fish larvae and marine crustaceans under culture. [ABSTRACT FROM AUTHOR]