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Search Results: 1 - 10 of 144474 matches for " Duverger F. "
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Magnetic dispersion in a soft amorphous layer with a helical anisotropy profile
Gloanec M.,Dubourg S.,Acher O.,Duverger F.
EPJ Web of Conferences , 2013, DOI: 10.1051/epjconf/20134013003
Abstract: A new analysis method of the magnetization dispersion in a thin magnetic film is presented. It is based on the angular measurement of the permeability spectra and on the evaluation of the integral relation. It provides the average orientation of the magnetization in the layer and a dispersion parameter which quantifies the magnetic dispersion. The method is successfully applied on a soft CoNbZr 800nm magnetic layer which possesses a helical anisotropy profile. This helical profile is obtained by rotating continuously the sample during the sputtering deposition on a scale from R = 0 to 16 turns. The study reveals that, for about 1/2 turn, a maximal dispersion is achieved and, for more elevated rotation speed, the magnetization no longer follows the anisotropy profile but lines up along an easiest axis direction. The experimental data are well described by a one-dimensional micromagnetic model which takes both exchange coupling and a helical anisotropy into account. The analytical cases with an exchange constant null and infinite are also considered in order to gain more insight onto the observed magnetic behaviour in the soft magnetic thin film.
Dise o y construcción de un esparcímetro de luz
A.S. Ramírez Duverger,R. García Llamas
Revista mexicana de física , 2004,
Abstract:
Evidencias de un programa educativo sobre el uso de inhaladores antiasmáticos por adolescentes
de la Paz Reyes,Elizabeth María; Laborí Ruíz,José Rafael; Duverger Cobián,Josefina; González Guerrero,Lourdes; Palacios Duverger,ángel Manuel;
MEDISAN , 2010,
Abstract: educational intervention was performed in 41 adolescents who suffered from bronchial asthma, belonging to "carlos juan finlay" teaching polyclinic of santiago de cuba, with the purpose of increasing the knowledge of the inhalers use in that population group. with this intervention the knowledge of patients of the series improved significantly, showing the effectiveness of the program implemented when achieving its initial purpose.
Tight Regulation of the intS Gene of the KplE1 Prophage: A New Paradigm for Integrase Gene Regulation
Ga?l Panis,Yohann Duverger,Elise Courvoisier-Dezord,Stéphanie Champ,Emmanuel Talla ,Mireille Ansaldi
PLOS Genetics , 2010, DOI: 10.1371/journal.pgen.1001149
Abstract: Temperate phages have the ability to maintain their genome in their host, a process called lysogeny. For most, passive replication of the phage genome relies on integration into the host's chromosome and becoming a prophage. Prophages remain silent in the absence of stress and replicate passively within their host genome. However, when stressful conditions occur, a prophage excises itself and resumes the viral cycle. Integration and excision of phage genomes are mediated by regulated site-specific recombination catalyzed by tyrosine and serine recombinases. In the KplE1 prophage, site-specific recombination is mediated by the IntS integrase and the TorI recombination directionality factor (RDF). We previously described a sub-family of temperate phages that is characterized by an unusual organization of the recombination module. Consequently, the attL recombination region overlaps with the integrase promoter, and the integrase and RDF genes do not share a common activated promoter upon lytic induction as in the lambda prophage. In this study, we show that the intS gene is tightly regulated by its own product as well as by the TorI RDF protein. In silico analysis revealed that overlap of the attL region with the integrase promoter is widely encountered in prophages present in prokaryotic genomes, suggesting a general occurrence of negatively autoregulated integrase genes. The prediction that these integrase genes are negatively autoregulated was biologically assessed by studying the regulation of several integrase genes from two different Escherichia coli strains. Our results suggest that the majority of tRNA-associated integrase genes in prokaryotic genomes could be autoregulated and that this might be correlated with the recombination efficiency as in KplE1. The consequences of this unprecedented regulation for excisive recombination are discussed.
Síndrome endotelial iridocorneal: reporte de un caso
Berbes Villalón,Elvira; González Delgado,Rosa Idalmis; Massó Duverger,Norvelis;
Revista M??dica Electr?3nica , 2011,
Abstract: we present a clinical case from the municipality cristobal rojas, miranda state, bolivarian republic of venezuela, with the diagnostic of iridocorneal endothelial syndrome (the iris essential atrophy) in a male patient, with a good evolution, only controlled with ocular hypotensors. this syndrome is observed mainly in the female genre, and it is a little frequent entity, not only among the ophthalmologic diseases but also among the glaucoma group. it has a very bad prognosis.
Ruptura espontánea de la vía urinaria superior: A propósito de un caso
Ares Valdés,Nixcela; Contreras Duverger,Daisy María; Ares Valdés,Yolanda;
Revista Cubana de Cirug?-a , 1998,
Abstract: it is presented a case of spontaneous rupture of the ureter, manifesting acute abdominal pain and with a urinary infection caused by klebsiella. the possible causes, the clinical diagnosis and the treatment are review
Hipotensión postratamiento en preeclámpticas graves, una forma sencilla y eficaz de prevenirlo
Canciano Chirino,Ernesto; Qui?ones Duverger,Griselda; Valdés Busquet,Sunaidy; Meneses Rodríguez,Franklin;
Revista Cubana de Obstetricia y Ginecolog?-a , 2010,
Abstract: the worse pre-eclampsia includes for its handling several medications, in pregnant women many needy times of cesarean operation of urgency, being the arterial hypotension a frequent and potentially avoidable complication with the administration of a previous hydrate. it was carried out a cohort study analyzing the utility of the hydrate with electrolytes, before the surgical intervention, as prevention of the hypotension post-treatments in worse pre-eclampsia women's s cesarean assisted in unit of perinatal cares (ucp) of the hospital ivan portuondo, san antonio de los ba?os city during two years. it selected aleatorally to 2 groups with 45 patients, group a (it used of 5-10 ml/kg of physiologic saline solution) and b (without hydrate). determining: fail organic, immediate complications according to postoperative time of recovery, demurrage in ucp for each group, besides more frequent perinatal complications. kidney was the affected organ (64.3 % of the total) without significant differences of the complementary ones among groups. the patients of the group b had more postoperative complications (55 % lowers expense) needing a more lingering time to recover. 82 % of the group a it was given of high in ucp before the 24 hours, while in the patients of the group b the demurrage was more lingering. the newly born ones with under weight in the group a it was of 35%, prevailed in b the syndrome of breathing difficulty and deaths were not reported. conclusions: in pregnancy women with serious preeclampsia and caesareans operation indications, the use preservative of solutions electrolytic improvement the clinical evolution, the maternal-fetal presage and it reduces the hospital demurrage.
Ruptura espontánea de la vía urinaria superior: A propósito de un caso
Nixcela Ares Valdés,Daisy María Contreras Duverger,Yolanda Ares Valdés
Revista Cubana de Cirugía , 1998,
Abstract: Se presenta un caso de ruptura espontánea del uréter que clínicamente se manifestó con dolor abdominal intenso y en el que se encontró infección urinaria por Klebsiella. Se revisan los posibles factores causales, el diagnóstico clínico y el tratamiento It is presented a case of spontaneous rupture of the ureter, manifesting acute abdominal pain and with a urinary infection caused by Klebsiella. The possible causes, the clinical diagnosis and the treatment are review
Hipotensión postratamiento en preeclámpticas graves, una forma sencilla y eficaz de prevenirlo Post-treatment hypotension in severe pre-eclampsia, a simple and effective way to prevent it
Ernesto Canciano Chirino,Griselda Qui?ones Duverger,Sunaidy Valdés Busquet,Franklin Meneses Rodríguez
Revista Cubana de Obstetricia y Ginecolog?-a , 2010,
Abstract: La preeclampsia grave incluye para su manejo varios medicamentos, en gestantes muchas veces necesitadas de cesárea de urgencia, la hipotensión arterial es una complicación frecuente y potencialmente evitable con la administración de una hidratación previa. Se realizó un estudio de cohorte analizando la utilidad de la hidratación con electrolitos, antes de la intervención quirúrgica, como prevención de la hipotensión postratamiento en preeclámpticas graves cesareadas atendidas en Unidad de Cuidados Perinatales (UCP) del Hospital Iván Portuondo, San Antonio de los Ba os durante dos a os. Se seleccionaron aleatoriamente 2 grupos con 45 pacientes. El grupo A (empleó de 5-10 ml/Kg. de solución salina fisiológica) y B (sin hidratación). Se determinaron fallas orgánicas, complicaciones inmediatas según tiempo de recuperación posoperatorio, estadía en UCP para cada grupo, además de complicaciones perinatales más frecuentes. El ri ón fue el órgano más afectado (64,4 % del total) sin diferencias significativas en los complementarios entre grupos. Las pacientes del grupo B tuvieron más complicaciones posoperatorias (55 % bajo gasto), necesitaron un tiempo más prolongado para recuperarse. Un 82 % del grupo A fue dado de alta en UCP antes de las 24 h, mientras que en las pacientes del grupo B la estadía fue más prolongada. Los recién nacidos con bajo peso en el grupo A fue del 35 %, predominó en B el Síndrome de dificultad respiratoria y no se reportaron muertes. Un manejo adecuado de los líquidos y electrolitos en la gestante con preeclampsia grave que necesita ser sometida a operación cesárea, mejora las condiciones para su recuperación posoperatoria, disminuye la estadía hospitalaria y contribuye a tener un recién nacido en mejores condiciones. The worse pre-eclampsia includes for its handling several medications, in pregnant women many needy times of Cesarean operation of urgency, being the arterial hypotension a frequent and potentially avoidable complication with the administration of a previous hydrate. It was carried out a cohort study analyzing the utility of the hydrate with electrolytes, before the surgical intervention, as prevention of the hypotension post-treatments in worse pre-eclampsia women's s Cesarean assisted in Unit of Perinatal Cares (UCP) of the Hospital Ivan Portuondo, San Antonio de los Ba os City during two years. It selected aleatorally to 2 groups with 45 patients, Group A (it used of 5-10 ml/Kg of physiologic saline solution) and B (without hydrate). Determining: fail organic, immediate complications according to postoperative time of r
Síndrome endotelial iridocorneal: reporte de un caso Iridocorneal endothelial syndrome: report of a case
Elvira Berbes Villalón,Rosa Idalmis González Delgado,Norvelis Massó Duverger
Revista M??dica Electr?3nica , 2011,
Abstract: Se presenta un caso clínico en el municipio Cristóbal Rojas, estado Miranda, República Bolivariana de Venezuela, con el diagnóstico de síndrome endotelial iridocorneal (atrofia esencial de iris) en un paciente del sexo masculino, con una buena evolución de su cuadro clínico, controlado solo con hipotensores oculares. Este síndrome se observa en el sexo femenino fundamentalmente, y es una entidad poco frecuente, no solo dentro de las enfermedades oftalmológicas sino también dentro del grupo de los glaucomas, y de muy mal pronóstico. We present a clinical case from the municipality Cristobal Rojas, Miranda State, Bolivarian Republic of Venezuela, with the diagnostic of iridocorneal endothelial syndrome (the iris essential atrophy) in a male patient, with a good evolution, only controlled with ocular hypotensors. This syndrome is observed mainly in the female genre, and it is a little frequent entity, not only among the ophthalmologic diseases but also among the glaucoma group. It has a very bad prognosis.
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