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Search Results: 1 - 10 of 329885 matches for " Sánchez Sarmiento Luz Yaneth "
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Demanda de mano de obra y rentabilidad de bancos forrajeros en Esparza, Costa Rica
Sánchez Sarmiento,Luz Yaneth; Andrade Casta?eda,Hernán Jaír; Rojas Molina,Jairo;
Acta Agronómica , 2010,
Abstract: we made a financial analysis in order to assess the feasibility to invest in fodder banks as an alternative for supplementing animals in dual purpose systems during the dry season (125 days). models were constructed to compare cutting and carrying of perennial woody fodder banks (veranera) cratylia argentea + sugar cane (saccharum officinarum) and browsing fodder banks of leucaena leucocephala with two supplements: concentrates and chicken manure. the indicators used for the financial evaluation of the systems were net present value (npv) and internal return rate (irr). a sensitivity analysis was carried out with an increase in milk, concentrate and chicken manure and labor prices. we found that perennial fodder banks required in average 71.1 man labor year-1 for their management. financial analysis showed that they are profitable when compared to chicken manure (npv= us$ 362.2; irr=17%) and concentrates (npv: us$ 1953.9; irr=39%). fodder banks with leucaena required 13 man labor year-1 for their management.. they are profitable when compared to chicken manure (npv=us$1594.7; irr=21%) and with concentrates (npv=us$3619.6; irr=35%). the models were sensible to changes in milk production, reduction in price of chicken manure and concentrates and reduction both in the labor price and price of milk. in summary, fodder banks are a good alternative for supplementing animal in the dry season and an important source of employment in the region; nevertheless, the high cost of hired labor could limit their adoption.
Demanda de mano de obra y rentabilidad de bancos forrajeros en Esparza, Costa Rica
Sánchez Sarmiento Luz Yaneth,Andrade Casta?eda Hernán Jaír,Rojas Molina Jairo
Acta Agronómica , 2010,
Abstract: En Esparza (Costa Rica) se evaluó la viabilidad de invertir en bancos forrajeros (BF) como alternativa de suplementación para vacas en sistema doble propósito durante la época seca (125 días). Se usaron como indicadores de rentabilidad el Valor Presente Neto (VPN) y la Tasa Interna de Retorno (TIR). Se realizó un análisis de sensibilidad para el incremento del precio de la leche, los concentrados, la gallinaza y la mano de obra. Los modelos se elaboraron comparando los BF de plantas le osas perennes de corte y acarreo de Cratylia argentea + ca a de azúcar (Saccharum officinarum) (BFC) y de ramoneo Leucaena leucocephala (BFL) vs. suplementos comerciales tipos concentrado y gallinaza. En los BFC se requirieron 71.1 jornales/a o y el análisis financiero indicó que son rentables al compararlos con la gallinaza (VPN = US$362.2, TIR = 17%) y concentrados (VPN = US$1953.9; TIR=39%). En BFL se requirieron 13 jornales/a o y fueron igualmente rentables en comparación con gallinaza (VPN = US$1594.7; TIR = 21%) y con concentrados (VPN = US$3619.6; TIR=35%). Los modelos fueron sensibles a la producción y cambios de precios en la leche, gallinaza, concentrados y el valor del jornal. Los BF son una buena alternativa para la suplementación de ganado en la época seca y una importante fuente de empleo en la región; sin embargo, los altos costos de la mano de obra contratada pueden limitar la adopción.
Jóvenes cristianos: entre la polaridad del bien y del mal? El juego de la balanza
Betty Sánchez Sarmiento
Nómadas , 2000,
Abstract: “Yo soy la herida y el cuchillo; Yo soy la bofetada y la mejilla Soy los elementos y la rueda, y la víctima y el verdugo”Baudelaire“I am the wound and the knife; I am the slap and the cheek; Iam the elements and the wheel, And the victim and the executioner.”Baudelaire
Candem projects 1965-1980. Vida privada y espacio doméstico
Luz Sempere Sánchez
Cuadernos de Proyectos Arquitectónicos , 2011,
Abstract: This article uses four social housing examples built in Candem′s district of London, between 1965 and 1980 to analysis of contemporary domestic space and private life. This period of time has gave the greatest contributions to collective housing in England due to a profound revision of domestic patterns. N1 Homes offered a radical vision of urban life in the context of the 60's: the society was in the midst of a postmodernist crisis and facing a growing consumer culture. The Candem projects tried to deal with the problems of alienation, physical deterioration and social confusion attributed to the housing built during the postwar period. There also tried to incorporate the new aspects of an increasingly technological and consumerist ideology society . Already that projects still remain being a very valid architecture in this day, it is very interesting its study. Architect Atxu Amann states in her doctoral thesis of 2005 that "we live a life of science-fiction in spaces from yesterday". N2 Inhabitants live under oppression,are prisoners by functional spatial schemes which, due to technological advances, have been updated by incorporating a series of services that are superimposed over the domestic space. Other than that, nothing else has evolved. Even though we are living the greatest media and technological revolution since the Industrial Revolution, the private sphere only responds to changes through the incorporation of increasingly advanced gadgets, without any criticism regarding their influence on the construction of the domestic interior. "The homes that exist are not those of our time". N3 In this way, Josep Quetglas puts forth an eloquent statement based on a play on words resulting from inverting Mies' famous quote "The homes of our time still do not exist". This declaration by Mies dates back to 1930 (Construction Expo held in Berlin) and continues to be completely true as of this day. The vulnerability of domestic space to the changes in society brings about the need to constantly redefine it. This space, conceived as the cell of privacy, is exposed to all the changes that occur in the structure of families. It is also exposed to all the technological advances, which directly influence it by being "goods" available to everyone. In our present time, where even internet technology is already taking a leap into virtual space, a debate regarding the characteristics of the home is absolutely necessary. This article focuses on the following projects: Branch Hill, (1973. G. Benson and A. Forsyth, architects), Maiden Lane, 1976-1983 (G. Benson and A
Hyman Minsky o la inestabilidad financiera
Sánchez Torres Fabio,Sarmiento Anzola Libardo,Zerda Sarmiento Alvaro
Cuadernos de Economía , 1986,
Abstract: La interpretación corriente del cuerpo teórico desarrollado por Keynes, la sintesis neoclásica-keynesiana, dominó el campo teórico y político de la economía ortodoxa durante el periodo inmediato a la posguerra y buena parte de los decenios siguientes (50s y 60s). Aunque se dejaron oir algunas voces disidentes, el eco de sus protestas no traspuso el ámbito académico de sus reducidas parcelas. Principalmente Cambridge, Inglaterra), por lo cual sus argumentos quedaron al buen abrigo de una secta de iniciados.
Leachate abatement inside solid waste landfill
Sarubbi,A. J.; Sánchez Sarmiento,G.;
Latin American applied research , 2009,
Abstract: parameters such as chemical oxygen demand in leachate, organic biodegradable compound, specific weight, and settlements of solid waste disposed in large scale testing unit at buenos aires sanitary landfill were monitored for more than 20 years. the mathematical simulation formulae between these parameters and the solid waste age were established based on the data obtained from the testing landfill units, and justified by the data obtained at the closed landfill units. the long-term predictions for concentrations of leachate from the landfill were carried out through mathematical simulation of a set of formulae proposed. the results showed that the organic activity within the landfill was stabilized after 7 years of closing it, confirming the consolidation and biodegradable process and its rate over time. while the landfill reached this quasi-equilibrium state, the on-site treatment of leachate was achieved, with a significant reduction in costs. an improvement of the initial conditions in the engineering design phase was discussed, as well as, some optimization in maintenance post-closure activities. additionally, the landfill's reintegration process and, the expansion of its capacity with minimal impact on the environment, were considered.
Leachate abatement inside solid waste landfill
A. J. Sarubbi,G. Sánchez Sarmiento
Latin American applied research , 2009,
Abstract: Parameters such as chemical oxygen demand in leachate, organic biodegradable compound, specific weight, and settlements of solid waste disposed in large scale testing unit at Buenos Aires Sanitary Landfill were monitored for more than 20 years. The mathematical simulation formulae between these parameters and the solid waste age were established based on the data obtained from the testing landfill units, and justified by the data obtained at the closed landfill units. The long-term predictions for concentrations of leachate from the landfill were carried out through mathematical simulation of a set of formulae proposed. The results showed that the organic activity within the landfill was stabilized after 7 years of closing it, confirming the consolidation and biodegradable process and its rate over time. While the landfill reached this quasi-equilibrium state, the on-site treatment of leachate was achieved, with a significant reduction in costs. An improvement of the initial conditions in the engineering design phase was discussed, as well as, some optimization in maintenance post-closure activities. Additionally, the landfill's reintegration process and, the expansion of its capacity with minimal impact on the environment, were considered.
Displacement within the city: Colombia
Luz Amparo Sánchez Medina
Forced Migration Review , 2010,
Abstract:
Diagnóstico prenatal de hepatoblastoma congénito: reporte de un caso
Luque,Luz Stella; Pinzón,Walter E; Sarmiento,Andrés;
Revista Colombiana de Obstetricia y Ginecología , 2003,
Abstract: a case report of the prenatal diagnosis of congenital hepatoblastoma is presented. relevant issues related to the sonographic diagnosis of this rare tumor are referred. comments on the differential diagnosis, obstetrical management, prognosis and neonatal follow up are made.
Diagnóstico prenatal de hepatoblastoma congénito: reporte de un caso Prenatal diagnosis of a congenital hepatoblastoma: a case report
Luz Stella Luque,Walter E Pinzón,Andrés Sarmiento
Revista Colombiana de Obstetricia y Ginecología , 2003,
Abstract: Presentamos un caso de diagnóstico prenatal de hepatoblastoma congénito. Se presentan los aspectos más relevantes acerca del diagnóstico ultrasonográfico de esta rara patología maligna. Se comentan aspectos relacionados con el diagnóstico diferencial, manejo obstétrico, pronóstico y seguimiento neonatal. A case report of the prenatal diagnosis of congenital hepatoblastoma is presented. Relevant issues related to the sonographic diagnosis of this rare tumor are referred. Comments on the differential diagnosis, obstetrical management, prognosis and neonatal follow up are made.
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