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Search Results: 1 - 10 of 7984 matches for " Yunier Soler Franco "
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Estaciones de trabajo multi-asiento Multiseat workstations
Daniel Hernandez Bahr,Yunier Soler Franco
Revista Cubana de Ciencias Informáticas , 2012,
Abstract: Con el desarrollo actual de los dispositivos de hardware los sistemas operativos modernos ejecutan simultáneamente un gran número de operaciones sin disminuir su rendimiento. Sin embargo, la inmensa mayoría de los recursos del sistema permanecen inactivos y el por ciento restante podría ser aprovechado por otros usuarios, permitiendo incrementar la eficiencia del sistema. Este uso compartido puede lograrse implementando una “configuración multi-asiento”. El presente trabajo describe los procedimientos necesarios para convertir una estación de trabajo convencional en una estación multi-asiento, recoge también las principales soluciones existentes y la integración del sistema operativo Nova con este tipo puestos de trabajo. With the current development of hardware devices, modern operating systems are able to simultaneously execute a great number of operations without losing performance. However, most of the system resources will remain idle. That remaining percent could be used by other users, allowing increasing system's efficiency. This shared use can be achieved by implementing a “multi-seat configuration”. This paper describes the procedures needed in order to turn a conventional workstation into a multi-seat workstation; it covers also the main existent solutions and the integration of the Nova operating system with this kind of workstations.
Multiseat workstations Estaciones de trabajo multi-asiento
Daniel Hernandez Bahr,Yunier Soler Franco
Revista Cubana de Ciencias Informáticas , 2012,
Abstract: With the current development of hardware devices, modern operating systems are able to simultaneously execute a great number of operations without losing performance. However, most of the system resources will remain idle. That remaining percent could be used by other users, allowing increasing system's efficiency. This shared use can be achieved by implementing a “multi-seat configuration”. This paper describes the procedures needed in order to turn a conventional workstation into a multi-seat workstation; it covers also the main existent solutions and the integration of the Nova operating system with this kind of workstations. Con el desarrollo actual de los dispositivos de hardware los sistemas operativos modernos ejecutan simultáneamente un gran número de operaciones sin disminuir su rendimiento. Sin embargo, la inmensa mayoría de los recursos del sistema permanecen inactivos y el por ciento restante podría ser aprovechado por otros usuarios, permitiendo incrementar la eficiencia del sistema. Este uso compartido puede lograrse implementando una “configuración multi-asiento”. El presente trabajo describe los procedimientos necesarios para convertir una estación de trabajo convencional en una estación multi-asiento, recoge también las principales soluciones existentes y la integración del sistema operativo Nova con este tipo puestos de trabajo.
Gestión de información e inteligencia: integración en los contextos organizacionales
Rodríguez Cruz,Yunier;
ACIMED , 2008,
Abstract: some of the main characteristics of information management and intelligence in the organizations are approached. the author goes deep into the necessary integration of both disciplines to attain a better use and management of information as an organizational resource. the particularities allowing tovalidate the marked dependence existing between both practices are also examined.
Gestión de información e inteligencia: integración en los contextos organizacionales Intelligence and information management: integration in organizational contexts
Yunier Rodríguez Cruz
ACIMED , 2008,
Abstract: Se estudian las principales características de la gestión de información y la inteligencia en las organizaciones. Se profundiza sobre la necesaria integración de ambas disciplinas para un mejor uso y manejo de la información como recurso organizacional. Se examinan las particularidades que permiten validar la marcada dependencia que existe entre ambas prácticas. Some of the main characteristics of information management and intelligence in the organizations are approached. The author goes deep into the necessary integration of both disciplines to attain a better use and management of information as an organizational resource. The particularities allowing tovalidate the marked dependence existing between both practices are also examined.
On proximal subgradient splitting method for minimizing the sum of two nonsmooth convex functions
Jose Yunier Bello Cruz
Mathematics , 2014,
Abstract: In this paper we present a variant of the proximal forward-backward splitting iteration for solving nonsmooth optimization problems in Hilbert spaces, when the objective function is the sum of two nondifferentiable convex functions. The proposed iteration, which will be called the Proximal Subgradient Splitting Method, extends the classical subgradient iteration for important classes of problems, exploiting the additive structure of the objective function. The weak convergence of the generated sequence was established using different stepsizes and under suitable assumptions. Moreover, we analyze the complexity of the iterates.
A Comment on “On Humbert Matrix Polynomials of Two Variables”  [PDF]
Vicente Soler Basauri
Advances in Pure Mathematics (APM) , 2013, DOI: 10.4236/apm.2013.35066
Abstract: In this comment we will demonstrate that one of the main formulas given in Ref. [1] is incorrect.
Paralytic Shellfish Poisoning (PSP) in Margarita Island, Venezuela
La Barbera-Sánchez,Amelia; Soler,Jose Franco; Rojas de Astudillo,Luisa; Chang-Yen,Ivan;
Revista de Biología Tropical , 2004,
Abstract: a severe outbreak of paralytic shellfish poisoning (psp) occurred in manzanillo and guayacán, northwestern coast of margarita island, venezuela, between august and october 1991. a bloom of dinoflagellates including prorocentrum gracile, gymnodinium catenatum and alexandrium tamarense seemed to be responsible for this outbreak. levels of psp toxins in mussels (perna perna) exceeded the international safety limit of saxitoxin, 80 μg stx/100 g meat. psp toxin values varied between 2 548 and 115 μg stx/100 g meat in manzanillo, and between 1 422 and 86 μg stx/100 g meat in guayacán. at both locations, the highest levels were detected in august, when 24 patients exhibited typical symptoms of psp toxicity after consuming cooked mussels (16 required hospitalization). a high pressure liquid chromatographic (hplc) procedure was recently used on the 1991 samples. the major toxin detected in samples of both locations was decarbamoyl saxitoxin (dcstx), but low concentrations of saxitoxin were also found in manzanillo samples. gonyautoxins gtx1, gtx2 and gtx3 were detected only at guayacán, while in both locations, decarbamoylgonyatouxin (dcgtx2,3) toxins were detected. these findings represent the first time that causative toxins of psp in venezuela have been chemically identified, and confirm the presence of dcstx and dcgtx in mussels from the caribbean sea. the presence of dcstx and dcgtx in shellfish is indicative that gymnodinium catenatum was a causative organism for outbreak of psp
Interferón alfa en el tratamiento de la Cirrosis Hepática por Virus C: Presentación de 2 casos
Infante Velázquez,Mirtha; Franco Estrada,Silvia; Pérez Lorenzo,Marlén; Winograd Lay,Rebeca; Arús Soler,Enrique;
Revista Cubana de Medicina Militar , 2000,
Abstract: the evolution of two patients diagnosed with liver cirrhosis caused by hepatitis c virus and treated with interferon alpha for 9 and 12 months respectively was presented. the therapy was aimed at improving the quality of life of these patients and encouraging a slower progression of the disease. both patients were included in child/pugs classification group a. the treatment was well-tolerated and no clinical decompensation signs were observed. it is necessary to make observations for a longer period of time to assess the effectiveness of this therapeutic approach.
Paralytic Shellfish Poisoning (PSP) in Margarita Island, Venezuela
Amelia La Barbera-Sánchez,Jose Franco Soler,Luisa Rojas de Astudillo,Ivan Chang-Yen
Revista de Biología Tropical , 2004,
Abstract: A severe outbreak of Paralytic Shellfish Poisoning (PSP) occurred in Manzanillo and Guayacán, northwestern coast of Margarita Island, Venezuela, between August and October 1991. A bloom of dinoflagellates including Prorocentrum gracile, Gymnodinium catenatum and Alexandrium tamarense seemed to be responsible for this outbreak. Levels of PSP toxins in mussels (Perna perna) exceeded the international safety limit of saxitoxin, 80 μg STX/100 g meat. PSP toxin values varied between 2 548 and 115 μg STX/100 g meat in Manzanillo, and between 1 422 and 86 μg STX/100 g meat in Guayacán. At both locations, the highest levels were detected in August, when 24 patients exhibited typical symptoms of PSP toxicity after consuming cooked mussels (16 required hospitalization). A high pressure liquid chromatographic (HPLC) procedure was recently used on the 1991 samples. The major toxin detected in samples of both locations was decarbamoyl saxitoxin (dcSTX), but low concentrations of saxitoxin were also found in Manzanillo samples. Gonyautoxins GTX1, GTX2 and GTX3 were detected only at Guayacán, while in both locations, decarbamoylgonyatouxin (dcGTX2,3) toxins were detected. These findings represent the first time that causative toxins of PSP in Venezuela have been chemically identified, and confirm the presence of dcSTX and dcGTX in mussels from the Caribbean Sea. The presence of dcSTX and dcGTX in shellfish is indicative that Gymnodinium catenatum was a causative organism for outbreak of PSP Un severo brote de intoxicación paralizante por moluscos (PSP en inglés) ocurrió en Manzanillo y Guayacán en la costa noroeste de la Isla de Margarita, Venezuela entre agosto y octubre de 1991. Una proliferación de Prorocentrum gracile, Gymnodinium catenatum y Alexandrium tamarense causó el brote. Los niveles de PSP en mejillón (Perna perna) superaron los niveles máximos permisibles de saxitoxina, 80 μg STX/100g carne. Los niveles de toxinas variaron entre 2 548 y 115 μg STX/100 g carne en Manzanillo y entre 1 422 y 86 μg STX/100g carne en Guayacán. En ambas localidades, los máximos niveles se detectaron en agosto, cuando 24 personas presentaron síntomas típicos de PSP después de consumir mejillones cocidos (16 fueron hospitalizados). Se aplicó recientemente cromatografía líquida de alta presión (HPLC) a muestras del a o 1991 y la toxina más detectada fue decarbamoyl saxitoxina (dcSTX), pero también se encontró saxitoxinas en muestras de Manzanillo. Las gonyautoxinas GTX1, GTX2 y GTX3 solo se encontraron en Guayacán; en ambas localidades se detectó decarbamoylgonyatouxin (dcGTX2,3)
A colouring protocol for the generalized Russian cards problem
Andrés Cordón-Franco,Hans van Ditmarsch,David Fernández-Duque,Fernando Soler-Toscano
Mathematics , 2012,
Abstract: In the generalized Russian cards problem, Alice, Bob and Cath draw $a$, $b$ and $c$ cards, respectively, from a deck of size $a+b+c$. Alice and Bob must then communicate their entire hand to each other, without Cath learning the owner of a single card she does not hold. Unlike many traditional problems in cryptography, however, they are not allowed to encode or hide the messages they exchange from Cath. The problem is then to find methods through which they can achieve this. We propose a general four-step solution based on finite vector spaces, and call it the "colouring protocol", as it involves colourings of lines. Our main results show that the colouring protocol may be used to solve the generalized Russian cards problem in cases where $a$ is a power of a prime, $c=O(a^2)$ and $b=O(c^2)$. This improves substantially on the set of parameters for which solutions are known to exist; in particular, it had not been shown previously that the problem could be solved in cases where the eavesdropper has more cards than one of the communicating players.
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