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Search Results: 1 - 10 of 206652 matches for " Daniel de la Fuente "
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Operaciones balleneras de la INDUS en aguas Patagónicas: a?os iniciales (1936-1939)
QUIROZ,DANIEL; DE LA FUENTE,PAULA;
Magallania (Punta Arenas) , 2012, DOI: 10.4067/S0718-22442012000200002
Abstract: in this paper we examine, from an anthropological and historical perspective, the early years (1936-1939) of compa?ía industrial s.a. (indus) as a whaling company, when most of its operations were conducted in patagonian waters. these years are experimentation times, that afterwords lead to the establishment of quintay (1943-1967) and bajo molle (1956-1965) whaling stations. thus, this period is presented as a prelude to the whaling adventure of indus, a company that eventually to became the best known chilean whaling industry and in quantitative terms, the most important of all national whaling history. is the experimental aspect of these early years which makes it possible to find two stages, characterized by two different models of hunting and processing: between 1936 and 1938 with focus primarily on the coastal whaling from san carlos de corral and huafo stations, while between 1938 and 1939 operate under the pelagic whaling model with the factory ship indus b/f. the whaling operations and land stations in the south will be abandoned to concentrate on the construction of the quintay whaling station.
Operaciones balleneras de la INDUS en aguas Patagónicas: a os iniciales (1936-1939) INDUS whaling operations in Patagonian waters: early years (1936-1939)
DANIEL QUIROZ,PAULA DE LA FUENTE
Magallania , 2012,
Abstract: En este trabajo nos interesa mostrar, desde una perspectiva antropológica e histórica, los inicios (1936-1939) de la Compa ía Industrial S.A. (INDUS) como empresa ballenera, cuando la mayoría de sus operaciones se realizaban en aguas patagónicas. Estos a os constituyen una etapa de experimentación que, posteriormente, decantará en la puesta en marcha de las plantas balleneras de Quintay (1943-1967) y Bajo Molle (1956-1965). Así, se presentan como el preludio de la aventura ballenera de la INDUS, compa ía que con el tiempo logró transformarse en la industria ballenera chilena más conocida y, en términos cuantitativos, la más relevante de toda la historia ballenera nacional. Es el cariz experimental de estos a os iniciales lo que hace posible encontrar dos etapas, caracterizadas por dos modelos de caza y faenamiento distintos: entre los a os 1936-1938 se dedicará principalmente a la caza costera desde las estaciones de San Carlos de Corral y Huafo, mientras que entre 1938-1939 operará bajo el modelo de caza pelágica, con el buque factoría Indus B/F. Posteriormente las estaciones y las operaciones balleneras en el sur serán abandonadas para concentrarse en Quintay. In this paper we examine, from an anthropological and historical perspective, the early years (1936-1939) of Compa ía Industrial S.A. (INDUS) as a whaling company, when most of its operations were conducted in Patagonian waters. These years are experimentation times, that afterwords lead to the establishment of Quintay (1943-1967) and Bajo Molle (1956-1965) whaling stations. Thus, this period is presented as a prelude to the whaling adventure of INDUS, a company that eventually to became the best known Chilean whaling industry and in quantitative terms, the most important of all national whaling history. Is the experimental aspect of these early years which makes it possible to find two stages, characterized by two different models of hunting and processing: between 1936 and 1938 with focus primarily on the coastal whaling from San Carlos de Corral and Huafo stations, while between 1938 and 1939 operate under the pelagic whaling model with the factory ship Indus B/F. The whaling operations and land stations in the south will be abandoned to concentrate on the construction of the Quintay whaling station.
Land Productivity Changes in a Trade Liberalization Environment: Mexico under NAFTA  [PDF]
Diego de la Fuente Stevens
Theoretical Economics Letters (TEL) , 2014, DOI: 10.4236/tel.2014.43030
Abstract:

The focus of this research is the understanding of a fundamental aspect of the Mexican agricultural sector: the evolution of land productivity and the sources behind its changes. The study takes place in a period that runs from 1990 to 2011, a period of large structural transformations in the Mexican economy. The research offers answers regarding how the sector has adapted in terms of crop selection. Results show that a large share of total agricultural land productivity changes happened due to intrinsic changes in crop productivity; while these changes have different sources, most of them were the result of changes in production patters across states. Furthermore, around one quarter of total productivity, changes resulted from a better selection of crops in terms of productivity levels.

Evaluación y caracterización de la herrumbre de aceros autoprotectores (patinables) obtenida en diferentes ensayos acelerados de corrosión
Paula Montoya I.,Noelia Granizo I.,Daniel de la Fuente,Manuel Morcillo L.
Scientia Et Technica , 2007,
Abstract: La herrumbre formada sobre aceros autoprotectores ha sido objeto de numerosos estudios gracias a sus excelentes propiedades protectoras, permitiendo el uso certero de los aceros por largos períodos de tiempo y una reducción en los costes asociados a su mantenimiento. En el presente trabajo se evalúa el comportamiento de dos aceros autoprotectores, en los primeros estadios de exposición, en diferentes atmósferas: urbana moderada, moderada y marinoindustrial, simuladas en laboratorio. Se realiza una caracterización morfológica y estructural de la herrumbre mediante técnicas microscópicas (SEM), espectroscópicas (FTIR, DRX) y técnicas electroquímicas (PCA, SKB y EIS), se evalúan las propiedades protectoras de la herrumbre.
Sobre Festuca rubra L. subsp. juncea (Hackel) K. Richter en la Península Ibérica
de la Fuente García, Vicenta,Sánchez-Mata, Daniel
Collectanea Botanica , 1989,
Abstract: The presence of Festuca rubra L. subsp. juncea (Hackel) K. Richter in the Iberian Peninsu la is confirmed as an orophyte frequent in the Pyrenean range. A detailed and illustrated description, a list of the Iberian localities and a map of the European distribution, based on the studied specimens and localities and on bibliographic references, are also added. Se confirma la presencia de Festuca rubra L. subsp. juncea (Hackel) K. Richter en la Península Ibérica como un orófito frecuente en la Cordillera Pirenaica. Se a ade una descripción de tallada e ilustrada del taxon, la lista de las localidades ibéricas y un mapa de la distribución en Europa basado en los especímenes examinados y en referencias bibliográficas.
Xylella fastidiosa Differentially Accumulates Mineral Elements in Biofilm and Planktonic Cells
Paul A. Cobine, Luisa F. Cruz, Fernando Navarrete, Daniel Duncan, Melissa Tygart, Leonardo De La Fuente
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0054936
Abstract: Xylella fastidiosa is a bacterial plant pathogen that infects numerous plant hosts. Disease develops when the bacterium colonizes the xylem vessels and forms a biofilm. Inductively coupled plasma optical emission spectroscopy was used to examine the mineral element content of this pathogen in biofilm and planktonic states. Significant accumulations of copper (30-fold), manganese (6-fold), zinc (5-fold), calcium (2-fold) and potassium (2-fold) in the biofilm compared to planktonic cells were observed. Other mineral elements such as sodium, magnesium and iron did not significantly differ between biofilm and planktonic cells. The distribution of mineral elements in the planktonic cells loosely mirrors the media composition; however the unique mineral element distribution in biofilm suggests specific mechanisms of accumulation from the media. A cell-to-surface attachment assay shows that addition of 50 to 100 μM Cu to standard X. fastidiosa media increases biofilm, while higher concentrations (>200 μM) slow cell growth and prevent biofilm formation. Moreover cell-to-surface attachment was blocked by specific chelation of copper. Growth of X. fastidiosa in microfluidic chambers under flow conditions showed that addition of 50 μM Cu to the media accelerated attachment and aggregation, while 400 μM prevented this process. Supplementation of standard media with Mn showed increased biofilm formation and cell-to-cell attachment. In contrast, while the biofilm accumulated Zn, supplementation to the media with this element caused inhibited growth of planktonic cells and impaired biofilm formation. Collectively these data suggest roles for these minerals in attachment and biofilm formation and therefore the virulence of this pathogen.
The BiPublishers ranking: Main results and methodological problems when constructing rankings of academic publishers
Daniel Torres-Salinas,Nicolás Robinson-Garcia,Evaristo Jiménez-Contreras,Enrique de la Fuente
Computer Science , 2015,
Abstract: We present the results of the Bibliometric Indicators for Publishers project (also known as BiPublishers). This project represents the first attempt to systematically develop bibliometric publisher rankings. The data for this project was derived from the Book Citation Index, and the study time period was 2009-2013. We have developed 42 rankings: 4 for by fields and 38 by disciplines. We display six indicators by publisher divided into three types: output, impact and publisher's profile. The aim is to capture different characteristics of the research performance of publishers. 254 publishers were processed and classified according to publisher type: commercial publishers and university presses. We present the main publishers by fields. Then, we discuss the main challenges presented when developing this type of tools. The BiPublishers ranking is an on-going project which aims to develop and explore new data sources and indicators to better capture and define the research impact of publishers.
EL LENGUAJE DESDE LA BIOLOGíA DEL AMOR
FUENTE,JOSé DE LA;
Literatura y lingüística , 1997, DOI: 10.4067/S0716-58111997001000009
Abstract: en el presente trabajo se intenta una lectura descriptiva, sistemática y analítica del aporte del biólogo humberto maturana sobre su invitación teórica a la biología del conocimiento y además correlatos conceptuales remitidos al lenguaje desde la biología del amor. su planteamiento "conspirativo" es ontológico, fundado en la conversación y en la democracia. cuando se pierde la congruencia entre nosotros y el medio, simplemente no somos. en esta teoría aparecen íntimamente ligadas las nociones de lenguaje, lenguajear, conversar, emocionar, observar y autopoiesis. se rese?a a la persona y al investigador y se esbozan controversias, se precisa qué es la biología del amor, el lenguaje, los sistemas de convivencia y dominios, la relación del lenguaje con la realidad, la observación desde los caminos explicativos de la objetividad sin paréntesis y de la objetividad en paréntesis, la importancia de la experiencia estética y se sugiere qué mundo nos espera a partir de la educación
EL LENGUAJE DESDE LA BIOLOGíA DEL AMOR
JOSé DE LA FUENTE
Literatura y lingüística , 1997,
Abstract: En el presente trabajo se intenta una lectura descriptiva, sistemática y analítica del aporte del biólogo Humberto Maturana sobre su invitación teórica a la biología del conocimiento y además correlatos conceptuales remitidos al lenguaje desde la biología del amor. Su planteamiento "conspirativo" es ontológico, fundado en la conversación y en la democracia. Cuando se pierde la congruencia entre nosotros y el medio, simplemente no somos. En esta teoría aparecen íntimamente ligadas las nociones de lenguaje, lenguajear, conversar, emocionar, observar y autopoiesis. Se rese a a la persona y al investigador y se esbozan controversias, se precisa qué es la biología del amor, el lenguaje, los sistemas de convivencia y dominios, la relación del lenguaje con la realidad, la observación desde los caminos explicativos de la objetividad sin paréntesis y de la objetividad en paréntesis, la importancia de la experiencia estética y se sugiere qué mundo nos espera a partir de la educación
Rese a de "La geografía cultural" de Paul Claval
Lisandro de la Fuente
Economía, sociedad y territorio , 2000,
Abstract:
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