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Search Results: 1 - 10 of 176202 matches for " Bárbaro; Martínez Ferrá "
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Hernioplastia inguinal de Lichtenstein: la mejor opción
Duménigo Arias,Oscar; de Armas Pérez,Bárbaro; Martínez Ferrá,Gerardo; Gil Hernández,Ailette;
Revista Cubana de Cirug?-a , 2007,
Abstract: las hernias inguinales son un problema frecuente de salud que afecta a ambos sexos en todas las edades. a pesar de la frecuencia de su reparación quirúrgica, los cirujanos aún no logran resultados perfectos y el índice de recurrencias es humillante. se estudiaron 136 pacientes a los cuales se les realizó hernioplastia de lichtenstein entre el 2001 y 2003, y que estuvieron bajo seguimiento médico durante 3 a 5 a?os con el objetivo de determinar la efectividad de dicha técnica. la muestra estuvo constituida fundamentalmente por varones mayores de 45 a?os, en quienes predominaron las hernias del lado derecho, de los tipos 2 y 4 según la clasificación de gilbert modificada por rutkow y robbins y de causa primaria en el 83,12 % de los casos. más de la mitad de los procedimientos se realizó con anestesia local y el material protésico más empleado fue el polipropileno. el 79,87 % de los pacientes se operó de forma ambulatoria y el índice de complicaciones fue de 5,85 %. hasta la fecha sólo hemos tenido una recurrencia (0,65 %). los resultados obtenidos con la técnica de lichtenstein fueron eficaces, con baja morbilidad y recidiva a corto plazo mínima
Hernioplastia inguinal de Lichtenstein: la mejor opción Lichtenstein’s inguinal hernioplasty: the best choicev
Oscar Duménigo Arias,Bárbaro de Armas Pérez,Gerardo Martínez Ferrá,Ailette Gil Hernández
Revista Cubana de Cirugía , 2007,
Abstract: Las hernias inguinales son un problema frecuente de salud que afecta a ambos sexos en todas las edades. A pesar de la frecuencia de su reparación quirúrgica, los cirujanos aún no logran resultados perfectos y el índice de recurrencias es humillante. Se estudiaron 136 pacientes a los cuales se les realizó hernioplastia de Lichtenstein entre el 2001 y 2003, y que estuvieron bajo seguimiento médico durante 3 a 5 a os con el objetivo de determinar la efectividad de dicha técnica. La muestra estuvo constituida fundamentalmente por varones mayores de 45 a os, en quienes predominaron las hernias del lado derecho, de los tipos 2 y 4 según la clasificación de Gilbert modificada por Rutkow y Robbins y de causa primaria en el 83,12 % de los casos. Más de la mitad de los procedimientos se realizó con anestesia local y el material protésico más empleado fue el polipropileno. El 79,87 % de los pacientes se operó de forma ambulatoria y el índice de complicaciones fue de 5,85 %. Hasta la fecha sólo hemos tenido una recurrencia (0,65 %). Los resultados obtenidos con la técnica de Lichtenstein fueron eficaces, con baja morbilidad y recidiva a corto plazo mínima
Características diferenciales entre el fragmento de cráneo de Homo sp. de Venta Micena (Orce, Granada) y los equidos
Gibert, G.,Ribot, F.,Ferrández, C.,Martínez, B.
Estudios Geologicos , 1989, DOI: 10.3989/egeol.89451-2486
Abstract: A detailed study has been made between the morphology of the cranial fragment of Orce and various young members of the horse family, as in previous works it has already been separated from the rest of the mammals. The result that has been obtained is the perfect anatomical differentiation among all the analyzed characters, by which it is concluded that this cranial fragment of Orce cannot be included in the variability of the horse family. Se ha realizado un detallado estudio diferencial entre la morfología del fragmento craneal de Orce y varios équidos jóvenes, puesto que en anteriores trabajos ya se ha separado del resto de los mamíferos. El resultado obtenido ha sido la perfecta diferenciación anatómica entre todos los caracteres analizados, por lo que se concluye que dicho fragmento craneal de Orce no puede incluirse dentro de la variabilidad de los équidos.
Pielonefritis y embarazo: Experiencia durante un a?o en un hospital general
Pazos Otero,N.; Fuentes Ricoy,L.; Ferrández Pérez,B.; Martínez Vázquez,C.; Martínez Poch,M.; Osuna Díaz,J. L.;
Anales de Medicina Interna , 2007, DOI: 10.4321/S0212-71992007001200005
Abstract: objetive: the incidence of pyelonephritis during pregnancy reaches 2%. we recommend obtaining a urinalysis during the first trimester in order to detect asymptomatic bacteriuria and treat those cases with positive urine culture. methods: we restrospectively reviewed all cases diagnosed as acute pyelonephritis in pregnant women admitted to our hospital during 2004 and analyzed demographic data, diagnostic methods, treatments, outcome, new episodes and the impact on the date of birth and the newborn. results: we studied all the cases of pyelonephritis in pregnant women diagnosed in our hospital for one year (4,700 childbirths). we found that screening of bacteriuria was done incorrectly based on the presence of pyuria in the sediment of urine specimen. the incidence was 0.21 %, and such a low rate might be related to the possibility that some patients were not admitted in our hospital. prognosis was excellent being e. coli the only agent isolated in all cases. pyelonephritis that occurred during the first trimester relapsed. conclusions: a urine culture must be obtained during the first trimester of pregnancy and should be repeated after completion of adequate therapy of an infection, particulary if bacteriuria is detected in the first trimester.
Manejo de pacientes femeninas con condilomas acuminados
Ferrá Torres,Telma M; Martínez Arcia,Idalmis;
Revista Archivo M??dico de Camag??ey , 2008,
Abstract: background: sexually transmitted infections are priority themes at sexual and reproductive health field in cuba. objective: to assess the management of patient carriers of condylomata acuminatum, and contributing that objectives, projects and development of cuban public health be fulfilled. method: an observational cross-sectional analytic study in 47 female patients with condylomata acuminatum attended in the specialized treatment department of the dermatology external consultation at " manuel ascunce domenech" teaching hospital of camagüey city was carried out, from march 1st to december 31st , 2007, which constituted the universe of study. a survey was applied, according to experts' criteria and results were analyzed for automatic means. results: around the third part of the sickpersons did not come from specialties implicated in the management of condylomata acuminatum, doctors of another specialties obviated the integral general practitioner, and the last ones, did not interconsult the cases with the dermatologist. a complete physical examination was not performed, approximately the two third parts of the sickpersons, neither to their sexual couples. to the less half of patients complementaries were indicated to dismiss another associated sexually transmitted infections, to no one sub-clinical infection, neither cytologic nor alterations of the cervical epithelium, were rejected. conclusions: sanitary education was given to the less half of them.
A New Algorithm to Accelerate Harmonic Analysis of Time Series
Pedro A. Martínez-Ortiz,José M. Ferrándiz
ISRN Applied Mathematics , 2013, DOI: 10.1155/2013/916731
Abstract:
A New Algorithm to Accelerate Harmonic Analysis of Time Series
Pedro A. Martínez-Ortiz,José M. Ferrándiz
ISRN Applied Mathematics , 2013, DOI: 10.1155/2013/916731
Abstract: The Lomb periodogram has been traditionally a tool that allows us to elucidate if a frequency turns out to be important for explaining the behaviour of a given time series. Many linear and nonlinear reiterative harmonic processes that are used for studying the spectral content of a time series take into account this periodogram in order to avoid including spurious frequencies in their models due to the leakage problem of energy from one frequency to others. However, the estimation of the periodogram requires long computation time that makes the harmonic analysis slower when we deal with certain time series. Here we propose an algorithm that accelerates the extraction of the most remarkable frequencies from the periodogram, avoiding its whole estimation of the harmonic process at each iteration. This algorithm allows the user to perform a specific analysis of a given scalar time series. As a result, we obtain a functional model made of (1) a trend component, (2) a linear combination of Fourier terms, and (3) the so-called mixed secular terms by reducing the computation time of the estimation of the periodogram. 1. Introduction The Lomb periodogram is a mathematical tool that allows us to carry out a spectral analysis of a time series looking for unknown periodicities. It is based on the least-squares technique and was developed by Lomb [1] and Scargle [2] by following different ways. This tool overcomes the main problems of the classic periodogram among which we have to emphasize the fact that the Lomb periodogram can be used for analyzing unequally spaced time series. The Lomb periodogram is a function that depends on the frequency in a continuous manner. Its maximums or peaks point out the harmonics that explain the largest variance of the data. However, it is unpractical to compute the Lomb periodogram for a time series in an infinite set of frequencies. Therefore, we have to confine ourselves to a discrete approximation of it. One of the problems that we have to deal with when we compute the Lomb periodogram is to fix a step size for the frequency domain. If the time series is evenly spaced, it suffices taking a step size that allows us to detect the maximum period of time. However, we have to be more cautious when we cope with oddly spaced time series. In this case, the shorter the step size we choose, the better and safer approximation we get. However, when the step size for the frequency domain is considerably small or the length of the time series is large, the computation time of the Lomb periodogram increases. The discretization of the Lomb
Factor reumatoideo: Asociación con marcadores de respuesta inflamatoria
Mendoza Coussett,Ulises; Castro Castro,Zurama Eloísa; Taylor Jiménez,Bárbaro;
Revista M??dica Electr?3nica , 2010,
Abstract: the rheumatoid factor is a well-known autoimmunity biomarker, related to several chronic inflammatory diseases, mainly to rheumatoid arthritis. the explanation of its pathogenic role and its predictive-developing value can be helped by knowing its relation with other markers of inflammatory answer. to analyze the association of the rheumatoid factor with seric markers c reactive, c3 and c4 complement proteins, igg, igm, and iga, we carried out a transversal study with quantitative inmunoturbidimetric determination of those variables in a sample formed by 83 healthy control individuals and 44 patients carrying diseases related with seric increase of the rheumatoid factor. to analyze the results we used the statistics program ssps, version 16,0. the analysis of lineal correlation did not show significant association (p>0, 05) of the rheumatoid factor to the rest of the variables in healthy controls, while it was inversely associated to complete c4 in patients without rheumatoid arthritis (r=-0,475; p=0,014) and in those with increased rheumatoid factor (>20 ui/ml) (de spearman′s rho =-0,472; p=0,048) ; it also was directly associated to reactive c protein in patients with rheumatoid arthritis clinically exacerbated (spearman′s rho =0,598; p=0,014), and to c3 complement in patients with normal rheumatoid factor (<20u/ml) (r=0,406; p=0,040) . these results show the association of the rheumatoid factor with an acute inflammatory answer in pathologic conditions, the possible link of this marker with seric complement consumption, via classical activated, in patients with increased levels of it, and a possible role of this marker as acute phase reactant.
Factor reumatoideo: Asociación con marcadores de respuesta inflamatoria Rheumatoid factor: Its association with inflammatory answer markers
Ulises Mendoza Coussett,Zurama Eloísa Castro Castro,Bárbaro Taylor Jiménez
Revista M??dica Electr?3nica , 2010,
Abstract: El factor reumatoideo es un conocido biomarcador de autoinmunidad relacionado con varias enfermedades inflamatorias crónicas, principalmente la Artritis Reumatoidea. El esclarecimiento del papel patogénico y valor pronóstico-evolutivo del mismo puede ser auxiliado por el conocimiento de su relación con otros marcadores de respuesta inflamatoria. Para analizar la asociación del factor reumatoideo con los marcadores séricos proteína C reactiva, C3 y C4 complemento, IgG, IgM, e IgA se realizó un estudio transversal con la determinación inmunoturbidimétrica cuantitativa de dichas variables en una muestra constituida por 83 individuos controles sanos y 44 pacientes portadores de enfermedades relacionadas con el aumento sérico del factor reumatoideo. Para el análisis de los resultados se empleó el programa estadístico SSPS, versión 16,0. El análisis de correlación lineal no arrojó asociación significativa (p>0,05) del factor reumatoideo con las restantes variables en los controles sanos, mientras que se encontró inversamente asociado con C4 complemento en pacientes sin artritis reumatoidea (r=-0,475; p=0,014) y en aquellos con factor reumatoideo elevado (>20 UI/ml) (Rho de Spearman=-0,472; p=0,048); así como directamente asociado a la proteína C reactiva en pacientes con artritis reumatoidea, en exacerbación clínica, (Rho de Spearman=0,598; p=0,014) y C3 complemento en pacientes con factor reumatoideo normal (<20U/ml) (r=0,406; p=0,040). Estos resultados demuestran asociación del factor reumatoideo con la respuesta inflamatoria aguda en condiciones patológicas, posible vínculo de este marcador con el consumo de complemento sérico, activado por vía clásica, en pacientes con niveles elevados del mismo, y sugieren posible comportamiento como reactante de fase aguda para este marcador. The rheumatoid factor is a well-known autoimmunity biomarker, related to several chronic inflammatory diseases, mainly to Rheumatoid Arthritis. The explanation of its pathogenic role and its predictive-developing value can be helped by knowing its relation with other markers of inflammatory answer. To analyze the association of the rheumatoid factor with seric markers C reactive, C3 and C4 complement proteins, IgG, IgM, and IgA, we carried out a transversal study with quantitative inmunoturbidimetric determination of those variables in a sample formed by 83 healthy control individuals and 44 patients carrying diseases related with seric increase of the rheumatoid factor. To analyze the results we used the statistics program SSPS, version 16,0. The analysis of lineal correlation did
CONSTRE?IMIENTOS DEL DESARROLLO Y LA INTEGRACIóN EVODEVO: PRECISIONES Y DISTINCIONES EN TORNO AL TEMA
MARTíNEZ B.,MAXIMILIANO;
Acta Biológica Colombiana , 2009,
Abstract: developmental constraints are located on the interface between evolution and development, which make them a crucial focus of research in evodevo. unfortunately, the concept of constraint and its factual references have been surrounded by confusion and controversy, which have limited the advancement of their study. in this paper, after reviewing some traditional literature on the subject, i identify some specific sources of confusion. i propose to recover the classical taxonomical division of constraints that divide them into universal and local, which brings clarity to the understanding of their nature. i highlight the need of avoiding some recurrent orthodox approaches on the topic, as well as defending their importance as developmental factors that have evolutionary implications.
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