1,285 research outputs found
La perla. Club social, cultural, ocupacional y de emprendimiento: una alternativa para la comunidad LGBT de la zona metropolita de Guadalajara
Este proyecto aborda dos asuntos fundamentales en México: el aumento en la edad y la esperanza de vida y el crecimiento del grupo LGBT (lésbico, gay, bisexual y transexual), que, junto con el envejecimiento poblacional, este nicho también aumenta en edad. Esto representa un problema ya que no hay servicios ni productos para este segmento de la población; no son considerados o pierden su visibilidad social al ser adultos mayores. A partir de esto, se identificó la oportunidad de emprender un club social, cultural y de emprendimiento para el grupo LGBT que busca una inclusión con el resto de la población heterosexual. En el club tendrán varias actividades y formas de planear sus vidas, asà como de aprender a sociabilizar con gente común a ellos y sus intereses. Para la creación de esta propuesta se utilizaron herramientas de medición como encuestas cualitativas, cuantitativas, mystery shopper, encuestas y entrevistas a fondo de las que obtuvimos información que validó la oferta de valor
Isolation and partial characterization of a plasmid in the extremely halophilic archaebacterium Halococcus morrhuae CCM 537
The extremely halophilic archaebacterium Halococcus morrhuae CCM 537 was found to contain’’ a plasmid, pHM2, of 6.0 kb. A restriction map was constructed. Southern hybridization of pHM2 DNA to DNA extracted from other Halococcus sp. strains revealed the presence of a similar plasmid in one other strain. A plasmid of Halobacterium trapanicum shared common sequences with pHM2. Other plasmids from halobacteria displayed no homology with pHM2. The characterization of pHM2 may make it useful for the development of cloning vectors for extremely halophilic archaebacteria
Ground characterization of building energy models
The calibration of building energy models is crucial for their use in some applications that depend on
their accuracy for adequate performance, such as demand response and model predictive control
(MPC). In general, energy models offer many possibilities/strategies when characterizing a construction
system, and such a characterization is key when analyzing both its thermal behavior and its energy
impact. This research analyzes the different ways to characterize the thermal interaction of the building
energy model (BEM) with the ground, comparing conventional approaches with new approaches based
on both optimization of the former and dynamic ground characterizations. Using a model adjusted to
a real case study, each of the existing options are analyzed, in which a different control of the ground
temperature both in terms of its temporal oscillation and its location in the building (based on thermal
zones) is taken into account. Exhaustive monitoring of a real building and measuring the ground and
ground floor surface temperatures have made establishing which EnergyPlus components/objects best
characterize the ground-slab interaction possible, both in terms of the simplicity of modeling and the cost
(economic and technical) required for each of them. As will be seen, there are objects with an excellent
cost/effectiveness ratio when characterizing the groun
The FRII Broad Line Seyfert 1 Galaxy: PKSJ 1037-2705
In this article, we demonstrate that PKSJ 1037-2705 has a weak accretion flow
luminosity, well below the Seyfert1/QSO dividing line, weak broad emission
lines (BELs) and moderately powerful FRII extended radio emission. It is one of
the few documented examples of a broad-line object in which the time averaged
jet kinetic luminosity, , is larger than the total thermal luminosity
(IR to X-ray) of the accretion flow, . The blazar nucleus dominates
the optical and near ultraviolet emission and is a strong source of hard
X-rays. The strong blazar emission indicates that the relativistic radio jet is
presently active. The implication is that even weakly accreting AGN can create
powerful jets. Kinetically dominated () broad-line objects
provide important constraints on the relationship between the accretion flow
and the jet production mechanism.Comment: To appear in ApJ November 1, 2008, v687n1 issu
Prolactin responses to stress induced by a competitive swimming effort
Purpose: The aim of the present study was to investigate the changes in prolactin (PRL) plasma concentrations induced by competitive swimming practice. Methods: Twenty-three males, 13 trained swimmers (experimental group) and 10 sedentary and healthy students (age-matched control group) took part in this investigation. The swimmers were assessed at three points: basal conditions, pre- and post-swimming competition (100 m freestyle), whereas subjects from the control group only undertook the basal trial. The variables analysed were: several body composition measures, anxiety level (STAI questionnaire), PRL and lactic acid concentrations. Results: No statistical differences were observed in PRL basal levels between groups. An evident PRL response to pre-competition psychological stress was observed in the experimental group, since the PRL plasma concentration rose from 4.02±0.53 ng/ml (basal conditions) to 5.52±0.53 ng/ml (p≤0.05). The PRL response to the competitive effort produced an important increase in its plasma concentration (10.07±1.59 ng/ml), showed statistical differences from pre-competition (p≤0.01) and from basal conditions (p≤0.001). A significant rise in plasma lactate levels just at the end of the effort was found, although it did not correlate with PRL levels in the same situation. Conclusion: While we observed a remarkable response of PRL to psychological and physiological stress induced by a short term competitive effort in swimming, no changes in PRL basal levels were exhibited with swim training. More research is needed to clarify these findings
Microwave foaming of sodium silicate-ortodibasic calcium phosphate mixtures
[ES] La acción de la energÃa de las microondas, genera porosidad interna en un material cerámico húmedo. En el presente trabajo,
se analiza el efecto del tiempo de aplicación de las microondas sobre el comportamiento térmico, cambio de volumen,
tamaño y distribución de poros, reacciones quÃmicas y disolución de probetas cerámicas de silicato de sodio / ortofosfato cálcico
dibásico (FCD). Para caracterizar las espumas cerámicas, se utilizó, análisis de imágenes, microscopÃa electrónica de
barrido, difracción de rayos X y picnometrÃa de helio. Se obtuvieron espumas cerámicas con una porosidad de 71 a 79 % y
un rango de tamaño de poro de 10 a 200 μm. Después de 90 segundos, las probetas alcanzaron una temperatura de aproximadamente
130°C y una pérdida de peso de 23% con respecto al peso total de la muestra. Se observaron cambios de volumen
y de los compuestos quÃmicos en las muestras espumadas cuando se varió la proporción del FCD en la mezcla. Para
contenidos de 10, 20 y 30% en peso de FCD, el incremento de volumen se redujo a 350, 300 y 250% respectivamente. En muestras
con 30% de FCD calentadas por microondas durante 90 segundos la cantidad de un nuevo compuesto en la espuma,
constituido por β-NaCaPO4, fue del orden de 42.9%. En esa misma muestra, el 57.1 % restante fue FCD. Considerando pruebas
de disolución de un gramo de muestra en 100 ml de agua destilada, la disolución obtenida en muestras espumadas por
microondas después de 20 dÃas fue de 900 ppm/gr para el Na y de 2.7 ppm/gr para el Ca en muestras con 10% de FCD. En
muestras con 30% de FCD la disolución de Na fue de 470 ppm/gr y del Ca de 5 ppm/gr.[EN] The effect of microwave application on the thermal behaviour, volume change, size and pore size distribution as well as chemical
reactions and dissolution of sodium silicate/dibasic calcium phosphate ceramic (DCF) samples have been analysed.
Ceramics foams with porosities between 71 and 79 wt% and pore sizes ranging from 10 to 200 microns have been obtained.
After 90 seconds the temperature of samples reach about 130 °C with a weight loss of 23 wt%. Differences in the proportion
of DCF in the initial mixture originate changes in volume and different chemical compounds in the final obtained foams.
Additions of 10, 20 and 30 wt% of DCF originates volume increases of 350, 300 and 250 % respectively. In foam samples with
30 wt% of DCF, heated by microwave during 90 sec., the amount of the new compound β-NaCaPO4 was about 42.9 wt%. The
other component of this sample, 57.1 wt%, was DCF. Dissolution tests were made, using one gram of sample, in 100 ml of
distilled water. The dissolution of 10 wt% DCF foamed samples, after 20 days into water, were 900 ppm/gr of Na and 2.7
ppm/gr of Ca.
In samples with 30 wt% of DCF the dissolution were 470 ppm/gr and 5 ppm/gr for Na and Ca respectively.Peer reviewe
Metodologia orientada a la elección de FPGAs con prioridad en el consumo de potencia
En este trabajo se presenta una metodologÃa de diseño
orientada a explorar el cada vez más amplio conjunto de FPGAs
con el fin de seleccionar la mejor opción. Los parámetros que se
utilizan para realizar la exploración son los recursos consumidos,
la frecuencia de operación y el consumo de potencia. Sobre este
último parámetro, el más difÃcil de medir, se hace un especial
énfasis. Se exploran dos fabricantes (Altera y Xilinx), dos familias
diferentes de cada fabricante y dos subfamilias dentro de cada
familia, una de la gama alta y otra de la gama baja. Esta
exploración se ha realizado implementando dos circuitos que
realizan la operación división de números de 64 bits usando dos
algoritmos con plena vigencia.España, Ministerio de Educación y Ciencia TEC2007-65105/MICEspaña, Junta de AndalucÃa TIC-360
¿El uso de intensificador de imágenes en la realización de la osteotomÃa periacetabular disminuye la incidencia de complicaciones y mejora la orientación acetabular? Fundación Universitaria Ciencias de la Salud / Hospital Universitario ClÃnica San Rafael 2008-2010
Se considera que la displasia acetabular primaria, representa una causa de artrosis secundaria precoz de la cadera, ya que un pequeño ángulo centro borde deja la superficie lateral de la superficie articular de la cabeza femoral, sin cobertura. Este fenómeno determina unas presiones elevadas sobre la zona de carga de las superficies articulares de la cadera, produciendo los cambios degenerativos precoces. En los pacientes con artrosis secundaria a displasia acetabular primaria, es preferible reconstruir el acetábulo que realizar una osteotomÃa femoral, ya que el proceso artrósico se localiza en la cara acetabular de la articulación. (1), (4), (9), (11
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