822 research outputs found
Human germline manipulation: technical limits and future perspectives
Although many technical difficulties still remain, it appears probable that germline manipulation in humans will be implemented in the near future. The aim of this brief paper is to summarise what can be technically done at present and to indicate the possible applications of the new emerging technologies in this field. In particular we discuss the technical limits to the generation of transgenic and mutant humans and evaluate the problems which may arise in each of these procedures
Generation of an ultrastable 578 nm laser for Yb lattice clock
In this paper we described the development and the characterization of a 578 nm laser source to be the clock laser for an Ytterbium Lattice Optical clock. Two independent laser sources have been realized and the characterization of the stability with a beat note technique is presente
Les usages de la biographie
Es posible sugerir que hubo épocas -no tan lejanas- en las que era posible relacionar un acontecimiento histórico en forma abstracta de cualquier destino individual. Estamos viviendo una fase intermedia, la biografía está en el centro de las preocupaciones de los historiadores, pero se reconocen claramente sus ambigüedades.Traducido por Guillermo Bonzato
Revisión técnica de Alejandro SimonoffFacultad de Periodismo y Comunicación Socia
Los usos de la biografía
Un individuo posee límites claros, un número restringido de relaciones significativas... la biografía se abre a todo tipo de problemas, dentro de fronteras bien definidas.An individual has clear boundaries, a restricted number of significant relationships... the biography is open to all kinds of problems, within well-defined boundaries
Microhistory and Global History
Resumen: Después de describir la situación política en la que nacieron la Microhistoria y la Historia Global, en este artículo se propone una definición amplia de ambos campos con el objetivo de establecer cuáles innovaciones metodológicas realizaron. Al mismo tiempo, el autor muestra una serie de renovadas perspectivas, que le permiten estudiar la influencia de estas corrientes y la relación que establecieron con otras ciencias sociales -además de la Historia y la Antropología-, y con el sentido político y científico del debate historiográfico actual. Con esto estudio se busca entonces esclarecer las incertidumbres del concepto de lo global. Abstract : This article describes the political situation in which Microhistory and global history developed. It also proposes a broad definition of both fields in order to establish the methodological innovations derived from them. At the same time, the author presents a series of renewed perspectives, which enable the study of the influence of these trends and the relationships they established with other social sciences -besides History and Anthropology- and the political and scientific directions of the current historiographical debate. This study aims to clarify the uncertainties of the concept of the global. Resumo : Após descrever a situação política na qual a micro-história e a história global nasceram, neste artigo, propõe-se uma definição ampla de ambos os campos com o objetivo de estabelecer quais inovações metodológicas realizaram. Ao mesmo tempo, o autor mostra uma série de renovadas perspectivas que lhe permitem estudar a influência dessas correntes e a relação que estabeleceram com outras ciências sociais -além da História e da Antropologia-, e com o sentido político e científico do debate historiográfico atual. Com este estudo, procura-se esclarecer as incertezas do conceito do global
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