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1996
Microwave and Optical Technology Letters
A new family of microstrip open‐loop resonator filters for high‐selectivity applications2004 •
In this paper, the design of a novel planar narrowband microstrip filter is presented. The structure is designed and manufactured in microstrip technology, and it is formed by set of pairs of resonators of different lengths. The length of one resonator in each pair is adjusted so that a suitable odd resonance is tuned to the center frequency of the filter. The length of the other resonator is adjusted so that the next even resonance is tuned again to the center frequency of the filter. The different path of the signal in each resonator produces a cancellation of energy at a given frequency, therefore implementing a transmission zero in the insertion‐loss response of the filter. First, this paper presents a design example of a single set of resonators (basic unit cell) working at the fifth and sixth resonances. Then, two basic unit cells working at the first and second resonances are first optimized, and then they are cascaded to show how higher‐order filter responses can be implemen...
. In this work the effects of topic use of Brazilian green propolis gel in the contraction of wounds performed in rat's skin was evaluated. In ten female Wistar rats were done four wounds in dorsal region. Two wounds in each rat were treated daily with Brazilian green propolis gel during 10 days. The wounds were photographed daily, and the images were analyzed with ImageJ software, in order to mea-sure wound areas and evaluate wound contraction. In the graphic analysis, treated group and control group had similar behavior, and both evolved for complete closure in 10th experimentation day. The wound clots fell down before in treated wounds. Green propolis in the gel formulation at 5% in topical use had not effect in the process of wound contraction. The macroscopic visualization of the contraction of wounds, by itself, does not seem to be a good indicator of the process of tissue repair.
Boletin de la Sociedad Chilena de Arqueología
La producción cerámica mapuche: patrimonio entre el pasado y el presente2023 •
Se presenta una reflexión sobre la valorización del patrimonio alfarero mapuche. Se plantea que dicha puesta en valor se asocia generalmente con el registro arqueológico, como si la alfarería mapuche actual fuera una práctica extinta. Para ello se analizan tres fenómenos: el conocimiento generado desde la arqueología, los discursos museográficos existentes y las políticas públicas de recuperación y revitalización artesanal. Se busca reflexionar sobre las implicancias culturales de la cerámica más allá de los objetos mismos, poniendo el énfasis en las dinámicas sociales vinculadas con la tecnología. Lejos de posturas esencialistas, se propone una lectura que, sin olvidar los antecedentes históricos, tenga en cuenta las voces y las prácticas de las protagonistas (widüfe), como transmisoras del conocimiento alfarero ancestral (widün) propio del conocimiento local y la trasmisión generacional.
2020 •
Journal of neuroendocrinology
Changes in neurosteroidogenesis during demyelination and remyelination in cuprizone treated mice2018 •
Cirugía Española (English Edition)
Ileostomy Closure in a Colorectal Surgery Unit. Comparative Analysis of Different Techniques2014 •
Acta Crystallographica Section E Structure Reports Online
2-((1E)-1-{2-[(2Z)-4-(4-Bromophenyl)-3-phenyl-2,3-dihydro-1,3-thiazol-2-ylidene]hydrazin-1-ylidene}ethyl)pyridin-1-ium bromide monohydrate2014 •
2021 •
Federico Talamucci