scholarly journals Determinación de la longitud de onda máxima por barrido espectral dentro del rango ultravioleta visible (UV-VIS)

ELEMENTOS ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 101
Author(s):  
Gema Eunice Acosta Niño ◽  
Alejandro Bourdon ◽  
Denis Isabel Gutiérrez Galindo
Keyword(s):  
Nueva Granada

<p>El presente trabajo hace parte de un proyecto desarrollado</p><p>en La Universidad Militar Nueva Granada, Bogotá, Colombia, con el se</p><p>ha elaborado un prototipo para La recuperación de metales provenientes</p><p>de la pequeña y mediana industria del sector galvánico, específicamente</p><p>en la ciudad de Bogotá. Como resultado del mismo se ha incursionado</p><p>en métodos analíticos los cuales permiten determinar la concentración</p><p>de los metales a retirar en aguas, y su contenido después de haber</p><p>realizado la electrocoagulación, estos métodos en general requieren del</p><p>uso de equipos sofisticados para estos análisis, los cuales las pequeñas y</p><p>medianas industrias no están en capacidad de adquirir. Es bien sabido</p><p>que en el último siglo se ha generado una gran cantidad de material</p><p>contaminante en los acuíferos, provenientes del sector agropecuario, aguas</p><p>domésticas e industria, causando gran afectación a suelos.</p><p>Para mitigar el impacto ambiental, se busca cuantificar estos residuos en</p><p>muestras acuosas controlando concentraciones de vertimientos generados</p><p>por las industrias. Comúnmente se usa la técnica de absorción atómica</p><p>en la cuantificación, pero los altos costos de los equipos hacen inviable la</p><p>absorción atómica para los laboratorios no especializados. Por esta razón,</p><p>se busca adaptar una técnica analítica en espectrofotométrica visible que</p><p>permitan determinar Zn<span>2+</span>, para ello es necesario determinar la longitud</p><p>de onda optima a la cual se debe trabajar en el espectrofotómetro, con las</p><p>cantidades adecuadas de reactivos que desarrollen un cromóforo apropiado</p><p>para realizar cada lectura. Dentro de este estudio se analizan parámetros</p><p>con respecto al tiempo, temperatura y pH, para establecer las mejores</p><p>condiciones en las cuales se produce el cromóforo, para obtener una lectura</p><p>adecuada en la absorbancia, cuyo valor es usado para la elaboración de </p><p>la curva de calibración que permita interpolar los valores de contenido de</p><p>Zn<span>2+</span>, para poder cuantificar.</p>

LOS PRIMEROS AIRES DE LIBERTAD: EL CONVENTO DE SAN JUAN BAUTISTA DE LA ORDEN DE LOS CAPUCHINOS EN LA VILLA DEL SOCORRO, ESPACIO VITAL EN LA INDEPENDENCIA DE LA NUEVA GRANADA (1781-1819)

Revista M ◽  
2011 ◽  
Vol 8 (1) ◽  
pp. 4
Author(s):  
María Fernanda Reyes Rodríguez ◽  
Jennifer Álvarez Quintero ◽  
Geisson Mauricio Delgado López ◽  
Wendy Yurany Henao Pineda ◽  
Linda Stephanie Rincón Sánchez
Keyword(s):  
San Juan ◽  
San Juan Bautista ◽  
Nueva Granada

Crítica y alternativas a la economía política: la perspectiva de Bernard Stiegler

1969 ◽  
Vol 11 (1-4) ◽  
pp. 78-97
Author(s):  
Sergio Osorio García ◽  
Misael Kuan Bahamón
Keyword(s):  
Bernard Stiegler ◽  
Nueva Granada

Este trabajo intenta esbozar la crítica que realiza el filósofo Bernard Stiegler a la cultura que ha devenido por la sociedad hiperindustrial de la época contemporánea. Stiegler establece una relación necesaria entre el hombre y la técnica que, desde una reflexión filosófica tradicional, ha privilegiado al hombre por encima de la técnica en la constitución de los sujetos. Desde el trabajo que hacemos en el Grupo de investigación de Bioética y Complejidad de la Universidad Militar Nueva Granada, creemos que la bioética debe buscar una sabiduría compleja que nos permita un posicionamiento diferente frente a los conocimientos tecnocientíficos y al neoliberalismo. Esto, de cara a los nuevos retos políticos y ambientales en la era planetaria, que es lo que Stiegler llama sociedad hiperindustrial. Para encontrar luces para pensar una economía política hoy, se abordarán algunos elementos del pen- samiento stigleriano - su mirada a la cultura y a la economía contemporánea- para comprender la individuación de los sujetos, frente a un futuro sostenible que sea posible.

Iconografía intelectual en el Virreinato de la Nueva Granada siglo XVIII

2013 ◽  
Author(s):  
LINA DEL CASTILLO ◽  
MARÍA DEL ROSARIO LEAL ◽  
GRACE McCORMICK
Keyword(s):  
Nueva Granada

The Catholic Church's Role in the Disintegration of the Spanish Colonial Empire. The Case of the Viceroyalty of New Granada

2007 ◽  
Vol 20 (1) ◽  
pp. 10-36 ◽  
Author(s):  
Ana Maria Bidegain
Keyword(s):  
Spanish Colonial ◽  
New Granada ◽  
Cultural Transformations ◽  
Starting Point ◽  
Colonial Empire ◽  
New Ideas ◽  
Popular Classes ◽  
Nueva Granada ◽  
Role Of Religion ◽  
The Military

AbstractThis article analyzes aspects of the complex process that led to independence in the Viceroyalty of Nueva Granada. It focuses on the role of religion and of social actors that have not been sufficiently taken into account in traditional historiography. The latter has paid much attention to political and economic aspects, but has disregarded other important changes that propelled the independence process, profound socio-cultural transformations and events that indicate the complexity of the process. First of all, this was not just a revolution from above and the historical periodization has to be reworked as a result of the Borbonic Reforms, with their leaning toward enlightenment. We must not consider the military uprisings as the starting point of the emancipation from the Spanish crown. Even though the colonial societies did not follow the same path as the European bourgeois revolutions with their proposed liberal perspectives, important changes did indeed happen, in which all social groups were implicated. From both the religious and particularly the women's historical perspective we can see the important transformations that took place. Examples are provided of how women of the popular classes triggered the process. Likewise, women amongst the educated elite, large sectors of the Creole clergy and some educational institutions were important agents of the ideological changes, by propagating new ideas. All these, in turn, paved the way for the further diversification of the ideological and religious landscape of Latin America during the independence period.

Efficacy of three greenhouse screening methods for the identification of physiological resistance to white mold in dry bean

2009 ◽  
Vol 89 (4) ◽  
pp. 755-762 ◽  
Author(s):  
H Terán ◽  
S P Singh
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Sclerotinia Sclerotiorum ◽  
Screening Method ◽  
White Mold ◽  
Screening Methods ◽  
Post Inoculation ◽  
Dry Bean ◽  
Physiological Resistance ◽  
Nueva Granada

White mold (WM) caused by Sclerotinia sclerotiorum (Lib.) de Bary is the most devastating disease of common bean (dry and snap or garden bean) (Phaseolus vulgaris L.) in North America. The use of a reliable screening method (SM) in common bean is crucial to improve physiological resistance to WM. The objective of this study was to compare the efficacy of three SM to identify physiological resistance in dry bean genotypes with different evolutionary origins and levels of resistance. Screening methods tested were: (i) the modified straw test or cut–stem (CSM); (ii) infected bean flower (IFL); and (iii) infected oat seed (IOS). A 195, ICA Bunsi, Othello, and VCW 54 dry bean were tested with the three SM. The experimental design was a split plot in randomized complete blocks with three replications in 2007 and 2008. Two independent inoculations 1 wk apart for each SM were made. The WM reaction was scored at 16, 23, and 33 d post-inoculation (DPI) using a 1 to 9 scale. There were highly significant differences between SM and its interaction with years. The CSM and IFL were the most consistent and highly correlated (r > 0.70, P < 0.01). Interspecific breeding line VCW 54 consistently had the highest WM resistance across years, SM, and evaluation dates, followed by A 195. White mold scores increased with delayed evaluations. Thus, CSM or IFL with disease assessed 33 DPI should be used for identifying common bean genotypes with high levels of physiological resistance to WM.Key words: Common bean, growth habit, race Mesoamerica, race Nueva Granada, Phaseolus vulgaris, Sclerotinia sclerotiorum

1819: historia Narrativa de la campaña de la nueva granada

2019 ◽  
Author(s):  
Daniel Gutiérrez Ardila
Keyword(s):  
Nueva Granada

Cartas al general Melo: guerra, política y sociedad en la Nueva Granada, 1854. Transcripción, estudio preliminar y notas críticas

2021 ◽  
Author(s):  
Angie Guerrero Zamora ◽  
Luis Ervin Prado Arellano ◽  
Ángela Rocío Sevilla Zúñiga
Keyword(s):  
Nueva Granada

scholarly journals Hermann Karsten, pioneer of geologic mapping in northwestern South America

2015 ◽  
Vol 6 (1) ◽  
pp. 57-63 ◽  
Author(s):  
K. R. Aalto
Keyword(s):  
Sedimentary Rocks ◽  
Internal Heat ◽  
Primary Source ◽  
Life Forms ◽  
Crystalline Rocks ◽  
Regional Mapping ◽  
Geologic Mapping ◽  
Late 19Th Century ◽  
Marine Life ◽  
Nueva Granada

Abstract. In the late 19th century, a regional map of Nueva Granada (present-day Colombia, Panama and parts of Venezuela and Ecuador) was published by German botanist and geologist Hermann Karsten (1817–1908). Karsten's work was incorporated by Agustín Codazzi (1793–1859), an Italian who emigrated to Venezuela and Colombia to serve as a government cartographer and geographer, in his popular Atlas geográfico e histórico de la Republica de Colombia (1889). Geologic mapping and most observations provided in this 1889 atlas were taken from Karsten's Géologie de l'ancienne Colombie bolivarienne: Vénézuela, Nouvelle-Grenade et Ecuador (1886), as cited by Manual Paz and/or Felipe Pérez, who edited this edition of the atlas. Karsten defined four epochs in Earth history: Primera – without life – primary crystalline rocks, Segunda – with only marine life – chiefly sedimentary rocks, Tercera – with terrestrial quadrupeds and fresh water life forms life – chiefly sedimentary rocks, and Cuarta – mankind appears, includes diluvial (glacigenic) and post-diluvial terranes. He noted that Colombia is composed of chiefly of Quaternary, Tertiary and Cretaceous plutonic, volcanic and sedimentary rocks, and that Earth's internal heat (calor central) accounted, by escape of inner gases, for volcanism, seismicity and uplift of mountains. Karsten's regional mapping and interpretation thus constitutes the primary source and ultimate pioneering geologic research.

scholarly journals El reformismo fiscal borbónico en la Nueva Granada, balance y perspectivas

2016 ◽  
Vol 11 (29) ◽  
pp. 53-82
Author(s):  
José Pinto
Keyword(s):  
Nueva Granada
Sign in / Sign up

Export Citation Format

Share Document