Suchergebnisse

Los microorganismos promotores del crecimiento vegetal son una alternativa en la biofertilización de los cultivos. Sin embargo, su utilización a nivel comercial requiere del desarrollo de un bioproducto que sea competitivo al nivel de costos y efectos sobre las plantas, con respecto a los fertilizantes tradicionales. Por tal razón, el objetivo de este trabajo fue realizar el estudio de la cinética del crecimiento celular de dos especies bacterianas, Bacillus megaterium BSF5 y Sphingomonas paucimobilis BFS3, coleccionadas en el banco de cepas del laboratorio de Microbiología de la Universidad Francisco de Paula Santander, que se obtuvieron a partir de muestras de suelos de rosa y clavel del invernadero "Flores Iscalá", para producir un inoculante biológico para el mismo cultivo. Se evaluó un medio de cultivo líquido definido y se suministraron diferentes caudales de aire (VVM) con el fin de determinar la velocidad específica de crecimiento (μ) y la concentración celular en la máxima fase exponencial. A partir de estos resultados se continuó con el diseño de un medio de cultivo alternativo en el cual se suministraron fuentes nutricionales de bajo costo y fácil disponibilidad en la región, como la melaza, úrea y harina de hueso. Se determinó el crecimiento celular en dos concentraciones de azúcares teniendo en cuenta la cantidad que había sido suministrada en el medio de cultivo definido previamente evaluado. Se determinó que la inclusión de melaza en 1ºBrix para Bacillus megaterium y 2ºBrix para Sphingomonas paucimobilis favorece la producción de biomasa y disminuye los costos de materia prima, con respecto, a la obtenida en un medio de cultivo definido.Palabras clave: Bacillus megaterium, Sphingomonas paucimobilis, inoculantes, bioproceso, biofertilizantes.

Apesar do crescente interesse por formas alternativas de participação política, entre as quais o Orçamento Participativo (OP), pouco se tem estudado se essas novas modalidades estão incidindo na estruturação de um contrato social mais eficiente e duradouro. Talvez tal situação seja atribuída ao fato de que se considera que o pagamento de tributos é uma obrigação legal e, portanto haveria pouco a ser analisado neste terreno. A perspectiva deste artigo é distinta, argumenta-se que a forma como os cidadãos se posicionam a respeito do pagamento de impostos relaciona-se com outros domínios da política, tais como a confiança institucional e os níveis de envolvimento político. Por meio de uma pesquisa tipo survey os resultados deste estudo apontam para a existência de uma dimensão estrutural negativa no que se refere ao pagamento de tributos, fragilizando o contrato social vigente.

In searching for various opportunities to act in pursuing its foreign policy and endeavors to achieve a dominant role in the global processes USA has developed a broad range of instruments including a financial assistance as a way to be given support for its positions, intelligence activities, its public diplomacy, unilateral implementation of sanctions and even military interventions. The paper devotes special attention to one of these instruments - sanctions, which USA implemented in the last decade of the 20th century more than ever before. The author explores the forms and mechanisms for implementation of sanctions, the impact and effects they produce on the countries they are directed against, but also on the third parties or the countries that have been involved in the process by concurrence of events and finally on USA as the very initiator of imposing them.

"Published by the U.S. Army Chaplaincy Services Support Agency" -- P. [1]. ; Introduction / by Matthew A. Zimmerman -- Religious values in the workplace: implications for management in Canada / by David J. Lawless -- Contrasting models of military social organization / by Charles C. Moskos -- Manual for transition workshops / by Thomas E. Brown. ; Mode of access: Internet.

Analysis of the organization and adaptation of the foreign policy community and the role of political parties in it.

'We have depended,' says Teresa Okure, 'either on expatriates … or on African men to speak for us theologically and otherwise. Has the time now come to speak for ourselves? Okure's question is asked as an African woman, but in South Africa at least, it can also be asked for marginalized and oppressed black groups as a whole. The concern of this essay is to reflect on the speaking of a small base Christian community in a large informal peri-urban settlement, similar to the favellas of Latin America, outside the Durban metropolitan area. The first step is 'listening to' what they have to say.

Networks are an increasingly common aspect of administrative life. One organization in health care, the National Quality Forum (NQF), is attempting to address issues of health care quality in a new way by bringing together organizations from the public and private sectors to discuss and debate measures of quality and, ultimately, to effect change. Little, however, is known about a network leader's tasks during the creation of an organization like the NQF. The purpose of this article is to discuss and elaborate on one critical task, building a social base, that the NQF's president and CEO engaged in during the NQF's formative stages.