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Search Results: 1 - 10 of 830183 matches for " J. A Sánchez "
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Obtención de cachorros mediante inseminación artificial con semen canino refrigerado.: Primera descripción en Chile
Sánchez,A.; Rubilar,J.;
Archivos de medicina veterinaria , 2001, DOI: 10.4067/S0301-732X2001000100012
Abstract: using a couple of husky siberian, it is described for the first time in chile a kind of artificial insemination using cooled canine semen. the semen was obtained by digital manipulation and was diluted with uht semi-skimmed milk and antibiotics in relation 1:4 and cooled at 5oc. there inseminations were carried out on the third day of the oestrus which was determined through vaginal cytology, considering the beginning of the oestrus when the superficial cells constituted over the 80% of the total vaginal cells in the vaginal smear. inseminated was carried out using cooled doses for 24 and 48 hours and with an average concentration of 600 x 106 spermatozoa. the pregnancy diagnosis, through a real time ultrasonography, was done 28 days after the last insemination and the bitch gave birth to 4 normal puppies 61 days after last insemination
Obtención de cachorros mediante inseminación artificial con semen canino refrigerado.: Primera descripción en Chile Puppies obtained using artificial insemination with chilled extended semen.: First report in Chile
A. Sánchez,J. Rubilar
Archivos de medicina veterinaria , 2001,
Abstract: Empleando una pareja de perros Siberian Husky, se describe, por primera vez en Chile, una inseminación artificial empleando semen canino refrigerado. El semen fue obtenido por manipulación digital y diluido con leche semidescremada UHT con antibióticos en relación 1:4 y refrigerado a 5oC. Se practicaron 3 inseminaciones a partir del tercer día del estro, el cual fue determinado mediante exámenes de citología vaginal, considerándose inicio del estro cuando las células superficiales constituían sobre el 80% del total de células vaginales en los frotis. Se inseminó con dosis refrigeradas por 24 y 48 horas y con una concentración promedio de 600 millones de espermatozoides totales. El diagnóstico de gestación, mediante ecógrafo de tiempo real, se realizó 28 días después de la última inseminación y la perra parió 4 cachorros vivos 61 días Using a couple of Husky Siberian, it is described for the first time in Chile a kind of artificial insemination using cooled canine semen. The semen was obtained by digital manipulation and was diluted with UHT semi-skimmed milk and antibiotics in relation 1:4 and cooled at 5oC. There inseminations were carried out on the third day of the oestrus which was determined through vaginal cytology, considering the beginning of the oestrus when the superficial cells constituted over the 80% of the total vaginal cells in the vaginal smear. Inseminated was carried out using cooled doses for 24 and 48 hours and with an average concentration of 600 x 10(6) spermatozoa. The pregnancy diagnosis, through a real time ultrasonography, was done 28 days after the last insemination and the bitch gave birth to 4 normal puppies 61 days after last insemination
La competencia emocional en la escuela: una propuesta de organización dimensional y criterial
Sánchez Santamaría, J.
Ensayos : Revista de la Facultad de Educacion de Albacete , 2010,
Abstract: En este artículo se realiza una propuesta de desarrollo curricular de la competencia emocional en la Educación Infantil y Educación Primaria en Castilla-La Mancha. Primeramente, se realiza un análisis conceptual y normativo de la competencia emocional en las dos etapas mencionadas; y, en segundo lugar, se desarrolla una propuesta organizativa de tipo dimensional y criterial de la competencia emocional a partir de niveles de dificultad en su adquisición. Este trabajo se justifica por la importancia del desarrollo emocional en educación, así como por el carácter prescriptivo de esta competencia en los Decretos de Currículum de Castilla-La Mancha que, a las ocho competencias propuestas por la Unión Europea y refrendadas en la LOE, se une una novena: la emocional. Su novedad radica en ser un conjunto de saberes que todo alumno tiene que haber desarrollado al finalizar la etapa educativa correspondiente.
Formación de palygorskita asociada al flujo regional de las aguas subterráneas del borde S.O. de la Cuenca del Duero
Sánchez Román, J.,Blanco Sánchez, J. A.
Estudios Geologicos , 1986,
Abstract: The present work provides some data concerning the geochemistry of the paleogene groundwater in the S.W. region of the Duero Basin. The data reflect a clear decrease in silica and Mg throughout the regional flow from recharge areas to discharge ones. In one of the Paleogenes Formations of the area –Areniscas de Aldearrubia– the presence of small amounts of palygorskite Was detected. This mineral appears in perfectly automorphic crystals with a tendency to envelope and then close porosity. . From thermodinamic criteria, the possibility of the conversion of smectite –very abundant in the Formation– into palygorskite by addition of graundwater silica and Mg is in accordance with all the anaIytical and observational data. The palygorskite genesis related lo present or past groundwater flow could be considered as a variant of the diagenetic origin for this mineral. En este trabajo se presentan algunos datos sobre la geoquímica de las aguas subterráneas del paleógeno del S.O. de la Cuenca del Duero. Estos datos muestran una clara disminución de las concentraciones de sílice y de Mg a lo largo del flujo regional desde las áreas de recarga hacia las áreas de descarga. Por otra parte. en una de la formaciones paleógenas de la zona -Areniscas de Aldearrubia- hemos detectado la presencia de peque as cantidades de palygorskita. Dicho mineral se presenta en cristales perfectamente automorfos que tienden primero a tapizar y después a cerrar la porosidad. La posibilidad, demostrada termodinámicamente de transformación de esmectitas –muy abundantes en la citada formación– en palygorskita mediante aporte de sílice y Mg a partir del agua subterránea satisface todos los datos analíticos y de observación. Este tipo de génesis de la palygorskita asociado al flujo actual o subactual del agua subterránea puede considerarse como una variante del origen diagenético.
Peritonitis focal como forma de presentación clínica de una listeriosis
Sánchez Beorlegui,J.; García Sánchez,S.;
Anales de Medicina Interna , 2005, DOI: 10.4321/S0212-71992005000700009
Abstract: infections by germs of listeria genus can occur sporadically or in epidemic outbreaks and have different clinical presentations. abdominal origin is very unusual among them, especially in no immunocompromised patients or without concurrent liver illness. we present a young healthy man who is lacking in underlying diseases, suffering from focal peritonitis caused by listeria monocytogenes. the patient had to be operated on, requiring immediate colectomy and evacuation of a retroperitoneal abscess. the postoperative evolution was favorable under antibiotic treatment with amoxicillin and clavulanic acid during 3 weeks. the clinical-epidemiological and therapeutic aspects of listeriosis are analysed in the discussion, giving special attention to abdominal infective episodes.
Esquema de Difusión de Se?alización de Trama para una Red Local Inalámbrica
Abad,J.A.; Sánchez,J.;
Información tecnológica , 2004, DOI: 10.4067/S0718-07642004000500012
Abstract: this paper presents a medium access control (mac) protocol proposal, based on a time division multiple access/time division duplex scheme (tdma/tdd), to manage the distribution of available bandwidth among wireless network users. special attention is given to the signalling process of the protocol, that informs the remote terminals about the next frame configuration, as well as the system status. in order to measure the efficiency of the scheme, parameters like delay and throughput were taken. the analysis showed that for time sensitive services the service establishing delay is small. with the results obtained, it is concluded that this protocol could be implemented in a wireless local network, providing the same quality as that of wired systems
Esquema de Difusión de Se alización de Trama para una Red Local Inalámbrica Frame Signaling Broadcast Scheme for a Wireless Local Area Network
J.A. Abad,J. Sánchez
Información Tecnológica , 2004,
Abstract: Este articulo presenta una propuesta de protocolo de Control de Acceso al Medio (MAC) que emplea el esquema de Acceso Múltiple por División de Tiempo, con Duplex en Tiempo (TDMA/TDD), para distribuir el ancho de banda disponible entre los usuarios de una red inalámbrica. Se pone especial atención al proceso de se alización del protocolo, que indica a las terminales remotas la configuración de cada una de las tramas, así como el estado del sistema. Para medir la eficiencia del esquema, se tomaron parámetros como retardo y caudal eficaz. El análisis mostró que para los servicios sensibles al tiempo el retardo para el establecimiento del servicio es peque o. De los resultados obtenidos se concluye que este protocolo podría ser implementado en una red local inalámbrica proporcionando los mismos compromisos de calidad que los sistemas alambrados This paper presents a Medium Access Control (MAC) protocol proposal, based on a Time Division Multiple Access/Time Division Duplex scheme (TDMA/TDD), to manage the distribution of available bandwidth among wireless network users. Special attention is given to the signalling process of the protocol, that informs the remote terminals about the next frame configuration, as well as the system status. In order to measure the efficiency of the scheme, parameters like delay and throughput were taken. The analysis showed that for time sensitive services the service establishing delay is small. With the results obtained, it is concluded that this protocol could be implemented in a wireless local network, providing the same quality as that of wired systems
Decay of the Sinai Well in D dimensions
A. J. Fendrik,M. J. Sánchez
Physics , 1994, DOI: 10.1103/PhysRevE.51.2996
Abstract: We study the decay law of the Sinai Well in $D$ dimensions and relate the behavior of the decay law to internal distributions that characterize the dynamics of the system. We show that the long time tail of the decay is algebraic ($1/t$), irrespective of the dimension $D$.
Semiclassical density of degeneracies in quantum regular systems
A. J. Fendrik,M. J. Sánchez
Physics , 1999, DOI: 10.1088/0305-4470/33/12/303
Abstract: The spectrum of eigenenergies of a quantum integrable system whose hamiltonian depends on a single parameter shows degeneracies (crossings) when the parameter varies. We derive a semiclassical expression for the density of crossings in the plane energy-parameter, that is the number of crossings per unit of energy and unit of parameter, in terms of classical periodic orbits. We compare the results of the semiclassical formula with exact quantum calculations for two specific quantum integrable billiards.
Fuzzy Voice Coding with Significant Impulses Modeling and Redundant Waveform Recycling  [PDF]
Ismael Rosas Arriaga, Juan C. García Infante, J. Carlos Sánchez García
Communications and Network (CN) , 2013, DOI: 10.4236/cn.2013.51005
Abstract:

This paper proposes a voice codification based on two algorithms that make the wave form codification in time domain. The first uses the significant impulse model (SIM), which has as a goal to operate as an endpoint detector and as a dawn sampling, through the detection and selection of the significant valleys and crests; the second algorithm, is a redundant wave-form recycler (RWR) that uses an architecture based on fuzzy logic with an accumulative memory. The fuzzy algorithm obtains the similitude grade between the redundant wave forms, this with the objective of save into an knowledge base the patterns, based on the no supervised learning and when there are into memory, automatically there will be used to identified their arrive respect to the input signal, substituting the input block by the correspondent pattern into memory. This decoding process is using the SIM interpolation with a memory in accordance to the RWR.

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