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Search Results: 1 - 10 of 19786 matches for " Inmaculada Mu?oz Benítez "
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Estudio retrospectivo de las complicaciones de los catéteres temporales para hemodiálisis Retrospective study of the complications of temporary catheters for haemodialysis
Rodolfo Crespo Montero,María Dolores Contreras Abad,Rafael Casas Cuesta,Inmaculada Muoz Benítez
Revista de la Sociedad Espa?ola de Enfermería Nefrológica , 2011,
Abstract: Los objetivos de este estudio fueron analizar la duración y las causas de retirada de los catéteres temporales para hemodiálisis Hemos estudiado 1409 catéteres que fueron implantados en 608 pacientes en hemodiálisis periódicas (60.9 ± 15.5 a os, 341 mujeres (56%) y 267 hombres (44%). 280 (46%) pacientes recibieron 1 catéter y 144 (24%) 2 catéteres. Posteriormente se analizaron 546 catéteres retirados exclusivamente por complicaciones. La duración media de todos los catéteres (n=546) fue de 21±36 días. Las causas más frecuentes de retirada de catéteres por complicaciones fueron: 75% por déficit de flujo sanguíneo, 11% por infección, 6% por pérdida de sutura, 3% por oclusión, 3% por acodamiento. El déficit de flujo apareció a los 18 ± 34 días y la infección 29±50 días. La duración media de los catéteres implantados en el lado izquierdo fue 16±32 días y para el lado derecho 23±38 días (p<0.0001). Cuando analizamos la duración de los catéteres entre las distintas venas utilizadas, la duración media fue de 2 5.3±43 días para la yugular, 17.5±23 para la subclavia, y 11.9±10 días para la femoral, siendo las diferencias estadísticamente entre la yugular-subclavia y la vena femoral (p<0.05). Cuando comparamos la duración entre los de una sola luz frente a los de doble luz, en los catéteres retirados por complicaciones no se encuentran diferencias significativas (análisis multivariante). Podemos concluir, que la duración de los catéteres temporales colocados en vena yugular o subclavia y en el lado derecho, es significativamente superior a los colocados en vena femoral o lado izquierdo. No encontramos diferencias en la duración entre los catéteres de una o doble luz, al menos en nuestro estudio. The aim of this study was to analyze the duration and causes of removing complications for temporary catheters for haemodialysis. We studied 1409 catheters which were implanted on 608 patients in haemodialysis chronic (60.9 ± 15.5 years, 341 females (56%) and 267 males (44%). 280 (46%) patients received 1 catheter and 144 (24%) 2 catheters. We analyzed 546 catheters retired exclusively by complications. Mean duration of the catheters (n=546) of was 21±36 days. The main catheters complications that forced their retreat were: 75% for deficit blood flow rate, 11% infection, 6%, for loss of surgical suture, 3% for occlusion, 3% for elbowed. The deficit blood flow rate appeared to the 18 ± 34 days and the la infection to the 29±50 days. Mean duration of the catheters was of the 16±32 days for the left side and 23±38 for right side (p<0.0001). When we compared the different blo
Estudio retrospectivo de las complicaciones de los catéteres temporales para hemodiálisis
Crespo Montero,Rodolfo; Contreras Abad,María Dolores; Casas Cuesta,Rafael; Muoz Benítez,Inmaculada; Moreno Delgado,María Carmen; Suanes Cabello,Lourdes;
Revista de la Sociedad Espa?ola de Enfermería Nefrológica , 2011, DOI: 10.4321/S1139-13752011000100007
Abstract: the aim of this study was to analyze the duration and causes of removing complications for temporary catheters for haemodialysis. we studied 1409 catheters which were implanted on 608 patients in haemodialysis chronic (60.9 ± 15.5 years, 341 females (56%) and 267 males (44%). 280 (46%) patients received 1 catheter and 144 (24%) 2 catheters. we analyzed 546 catheters retired exclusively by complications. mean duration of the catheters (n=546) of was 21±36 days. the main catheters complications that forced their retreat were: 75% for deficit blood flow rate, 11% infection, 6%, for loss of surgical suture, 3% for occlusion, 3% for elbowed. the deficit blood flow rate appeared to the 18 ± 34 days and the la infection to the 29±50 days. mean duration of the catheters was of the 16±32 days for the left side and 23±38 for right side (p<0.0001). when we compared the different blood vessel, mean duration of the catheters was of the 25.3±43 days for the jugular, 17.5±23 for the subclavia, and 11.9±10 days for the femoral, being significant differences among jugular-subclavia and femoral vein (p<0.05). when comparing the duration, among a single lumen vs dual lumen, in catheters retired by complications, they were not significant differences (multivariate analysis). we can conclude that the duration, of the catheters placed in jugular or subclavia veins and right side is superior to the placed in femoral vein or left side, being recommended its use therefore as temporary access in hd, also facilitating the patient's mobility and ambulatory dialysis. we have not found, at least in our study, differs in the duration among the single lumen versus dual lumen catheters.
Higher frequency of chromosome aberrations in lymphocytes, exposed and non-exposed to mytocmycin C, amongst postmenopausal obese women compared to non-obese from the department of Cauca, Colombia Mayor frecuencia de aberraciones cromosómicas en linfocitos expuestos o no a mitomicina C, de mujeres post-menopáusicas obesas en comparación con mujeres no obesas del departamento del Cauca, Colombia
Yaliana Tafurt-Cardona,Leidy D. Jaramillo-Ruiz,Wilson Muoz-Ordo?ez,Sulma L. Muoz-Benítez
Biomédica , 2012,
Abstract: Introduction. Epidemiological studies indicate that obesity is associated in as much as 25-20% with several types of cancer. Objective. To evaluate the frequency of chromosome aberrations in lymphocytes from postmenopausal obese and non-obese women by means of the challenge assay as biomarker of genomic instability. Materials and methods. A total of 20 obese and 20 non-obese women, all post-menopause, were recruited for the study. The groups were matched according to age (± 5 years) and place of origin. After freely signing a consent form, women were interviewed using a structured questionnaire and a blood sample (5 cc) was drawn in vacutainer tubes. From each sample, lymphocyte cell cultures were established with and without mitomycin C (challenge assay). Afterwards, the frequency of chromosome aberrations were registered for each group and treatment. Data were analyzed using the statistical SPSS v. 14.0. Results. In general, obese women had a higher chromosome aberrations' frequency when compared to non-obese women. After exposing the cell cultures to Mitomycin C, obese women presented an increase in the number of total chromosome aberrations in comparison to non-obese women (3,74 ± 0,63 vs. 2,70 ± 0,61; p = 0,001). Conclusions. The higher frequency of chromosome aberrations in lymphocytes from postmenopausal obese women compared to non-obese women suggest differences in the DNA repair capacity, which could explain the association between genomic instability and the higher incidence of cancer in this population. Introducción. Estudios epidemiológicos indican que la obesidad está asociada en un 25-30% con varios tipos de cáncer. Objetivo. Evaluar la frecuencia de aberraciones cromosómicas en linfocitos de mujeres post-menopáusicas obesas y no-obesas, mediante la prueba de challenge como biomarcador de inestabilidad genómica. Materiales y métodos. Un total de 40 mujeres post-menopáusicas fueron reclutadas para el estudio (20 obesas y 20 no-obesas). Los grupos fueron pareados según edad (± 5 a os) y procedencia. Después de la firma voluntaria del consentimiento informado, las mujeres fueron entrevistadas y se tomó una muestra de sangre periférica (5 cc). Se establecieron cultivos de linfocitos con y sin tratamiento a mitomicina C (prueba de challenge) y posteriormente se registró la frecuencia de aberraciones cromosómicas para cada grupo y tratamiento. Resultados. En general, las mujeres obesas presentaron una mayor frecuencia de aberraciones cromosómicas en comparación con las mujeres no-obesas. Después de exponer los cultivos celulares a mitomicina C,
Enfermedad periodontal inflamatoria crónica en pacientes infectados con el virus de inmunodeficiencia humana: Una necesidad impostergable
López Rodríguez,Vania; Carpio Muoz,Emilio; Fardales Macías,Vicente; Benítez Guzmán,Iralys;
MediSur , 2009,
Abstract: background: the chronic inflammatory periodontal disease is related with multiple risk factors. those patients with human immunodeficiency virus have higher risk of presenting this disease and it is usually more serious in these cases. objective: to describe the prevalence of chronic inflammatory periodontal disease in patients with hiv. methods: descriptive, observational, cross-sectional study including patients with hiv in sancti spiritus province. the occurrence of the disease was determined after the periodontics cuban standards, and oral hygiene was assessed through the simplified oral hygiene index. other variables were measured, such as smoking habits, t cd4+ lymphocyte counting and virus load. the independent association of each risk factor with the disease was determined through a logistic regression model. results: the 56, 5 % of the 154 patients presented chronic inflammatory periodontal disease; 60 (39.0%) gingivitis and 27 (17,5%) periodontitis. gingivitis was associated with poor oral hygiene (or: 3,71) and periodontitis with smoking habit (or: 5,20). the severe forms of periodontitis occurred mainly in patients with lymphocyte counting lower than 500 cells/mm3 . conclusions: the prevalence of chronic inflammatory periodontal disease in patients with hiv in sancti spiritus province is linked to known risk factors such as smoking habits and oral hygiene.
3-D Cartesian Geometric Moment Computation using Morphological Operations and its Application to Object Classification
Sossa-Azuela, H.;Cuevas, F.J.;Aguilar-Iba?ez, C.;Benítez-Muoz, H.;
Ingeniería, investigación y tecnología , 2007,
Abstract: three-dimensional cartesian geometric moments are important features for 3-d object recognition and shape description. computing these features in the 3-d case by a straight for ward method requires a large number of operations. several authors have proposed fast methods to compute the 3-d moments. most of them require computations of order n3 , assuming that the object is represented by a nxnxn voxel image. recently, yang et al. (1996) presented a method requiring computation of o(n2) by using a discrete divergence theorem that allows to compute the sum of a function over an -dimensional discrete region by a summation over the discrete surface enclosing the object. in this paper, we present a new method to compute 3-d moments. for this, we first de compose the region into a set of balls (cubes) under d∞ this decomposition forms a partition. triple summations used in the computation of the moments are replaced by the sum of the moments of each cube of the partition. the moments of each cube can be computed in terms of a set of very simple expressions using the center of the cube and its radio. we show that once the partition is obtained, moment computation using the proposed approach is much faster than earlier methods; its complex ity is in fact of o(n). we also show several experiments where the de rived moments can be used to compute invariants useful in the recognition of three-dimensional objects.
El fenómeno del acoso laboral entre los trabajadores de la universidad
Justicia, Fernando Justicia;Benítez Muoz, Juan L.;Fernández de Haro, Eduardo;Berbén, Ana G.;
Psicologia em Estudo , 2007, DOI: 10.1590/S1413-73722007000300002
Abstract: the objective of this article is to carry out a description of mobbing -workplace bullying- within the university context. there are few studies which have focused their interest in this problem into the higher educational sector and it can explain the great difficulties for characterizing and defining the phenomenon into the university context. in this work, we present results about incidence taxes, most frequent mobbing behaviours and the effects on victims in order to characterize and define the problem. at the same time, we try to know about the influence of specific variables as age, gender or time of exposition to mobbing. in this sense, and in agreement with other studies, we found statistical differences related to victims? gender. in the same way, the results point out that frequency and duration of mobbing situations affects negatively to victim provoking an aggravation of the effects derived from mobbing.
Chronic Inflammatory Periodontal Disease in Patients with Human Immunodeficiency Virus. Enfermedad periodontal inflamatoria crónica en pacientes infectados con el virus de inmunodeficiencia humana.
Vania López Rodríguez,Emilio Carpio Muoz,Vicente Fardales Macías,Iralys Benítez Guzmán
MediSur , 2009,
Abstract: Background: The Chronic Inflammatory Periodontal Disease is related with multiple risk factors. Those patients with human immunodeficiency virus have higher risk of presenting this disease and it is usually more serious in these cases. Objective: To describe the prevalence of Chronic Inflammatory Periodontal Disease in patients with HIV. Methods: Descriptive, observational, cross-sectional study including patients with HIV in Sancti Spiritus province. The occurrence of the disease was determined after the Periodontics Cuban Standards, and oral hygiene was assessed through the simplified oral hygiene index. Other variables were measured, such as smoking habits, T CD4+ lymphocyte counting and virus load. The independent association of each risk factor with the disease was determined through a logistic regression model. Results: The 56, 5 % of the 154 patients presented Chronic Inflammatory Periodontal Disease; 60 (39.0%) gingivitis and 27 (17,5%) periodontitis. Gingivitis was associated with poor oral hygiene (OR: 3,71) and periodontitis with smoking habit (OR: 5,20). The severe forms of periodontitis occurred mainly in patients with lymphocyte counting lower than 500 cells/mm3 . Conclusions: The prevalence of Chronic Inflammatory Periodontal Disease in patients with HIV in Sancti Spiritus province is linked to known risk factors such as smoking habits and oral hygiene. Fundamento: La enfermedad periodontal inflamatoria crónica es un trastorno relacionado con diversidad de factores de riesgo. Los pacientes infectados con el virus de inmunodeficiencia humana tienen mayor riesgo para padecerla y en ellos muchas veces se agrava. Objetivo: Describir la prevalencia de la enfermedad periodontal inflamatoria crónica en pacientes infectados con el virus de inmunodeficiencia humana. Métodos: Estudio observacional transversal descriptivo que incluyó los pacientes infectados con el virus de inmunodeficiencia humana en la provincia de Sancti Spiritus. La presencia de la enfermedad se determinó según las normas cubanas de periodoncia y la higiene bucal fue evaluada mediante el índice de higiene bucal simplificado. Se recogieron otras variables como el hábito de fumar, el conteo de linfocitos T CD4+ y la carga viral. La asociación independiente de cada factor de riesgo con la afección se determinó mediante un modelo de regresión logística. Resultados: El 56,5 % de los 154 pacientes incluidos presentaron enfermedad periodontal inflamatoria crónica; 60 (39,0 %) gingivitis y 27 (17,5 %) periodontitis. La gingivitis estuvo asociada con la higiene bucal deficiente (OR: 3,7
Comprehensive characterization of the DNA amplification at 13q34 in human breast cancer reveals TFDP1 and CUL4A as likely candidate target genes
Lorenzo Melchor, Laura Paula Saucedo-Cuevas, Iván Muoz-Repeto, Socorro María Rodríguez-Pinilla, Emiliano Honrado, Alfredo Campoverde, Jose Palacios, Katherine L Nathanson, María José García, Javier Benítez
Breast Cancer Research , 2009, DOI: 10.1186/bcr2456
Abstract: A set of 414 familial and sporadic breast cancer cases was studied for amplification at region 13q34 by fluorescence in situ hybridization (FISH) analysis on tissue microarrays. Defining the minimal common region of amplification in those cases with amplification at 13q34 was carried out using an array-based comparative genomic hybridization platform. We performed a quantitative real-time - polymerase chain reaction (qRT-PCR) gene expression analysis of 11 candidate genes located within the minimal common region of amplification. Protein expression levels of two of these genes (TFDP1 and CUL4A) were assessed by immunohistochemical assays on the same tissue microarrays used for FISH studies, and correlated with the expression of a panel of 33 antibodies previously analyzed.We have found 13q34 amplification in 4.5% of breast cancer samples, but the frequency increased to 8.1% in BRCA1-associated tumors and to 20% in basal-like tumors. Tumors with 13q34 amplification were associated with high grade, estrogen receptor negativity, and expression of EGFR, CCNE, CK5, and P-Cadherin, among other basal cell markers. We have defined a 1.83 megabases minimal common region of genomic amplification and carried out mRNA expression analyses of candidate genes located therein, identifying CUL4A and TFDP1 as the most likely target genes. Moreover, we have confirmed that tumors with 13q34 amplification significantly overexpress CUL4A and TFDP1 proteins. Tumors overexpressing either CUL4A or TFDP1 were associated with tumor proliferation and cell cycle progression markers.We conclude that 13q34 amplification may be of relevance in tumor progression of basal-like breast cancers by inducing overexpression of CUL4A and TFDP1, which are both important in cell cycle regulation. Alternatively, as these genes were also overexpressed in non-basal-like tumor samples, they could play a wider role in cancer development by inducing tumor proliferation.Breast cancer is a complex and heterogeneous
Limbal transplantation: multicenter retrospective case series analysis
Torres,J.; Fernández,I.; Quadrado,M.J.; Murta,J.; Herreras,J.; Rodríguez-Ares,M.T.; Benítez-Del-Castillo,J.M.; Alió,J.; Muoz,M.F.; Calonge,M.;
Archivos de la Sociedad Espa?ola de Oftalmología , 2008, DOI: 10.4321/S0365-66912008000700005
Abstract: purpose: to report the results of limbal transplantation (lt) in patients with limbal stem cell deficiency (lscd) in the context of ocular surface diseases. materials and methods: a multicenter (5 centers) retrospective case series analysis of patients who underwent lt between 1996 and 2004 was performed. data were collected by the same researcher using a customized database. success was defined by the absence of a persistent corneal epithelial defect, on-going inflammation or recurrence of a pterygium. results: data from 72 lt performed in 61 patients (65 eyes) with a mean follow-up of 20.8 months (sd 23.5; range, 3-115) were analyzed. there were 33 males and 28 females with a mean age of 55.8 years (sd: 15.6; range, 20-89). fifty-eight (80.6%) lt were autografts (40 pterygia, 12 alkali burns, 3 iatrogenic cases, 2 viral infections, 1 neoplasia case) and 14 (19.4%) were allografts from cadaveric donors (7 immune-based disorders, 6 alkali burns, 1 iatrogenic case); all patients receiving allografts also received systemic immunosuppression. of the total number of lt, 48 (66.7%) were successful. this proportion increased to 81.0% (47/58) when autografts were used. however, only 7.1% (1/14) of all allografts were successful. the success rate was higher (80.0%) when performed for a pterygium and lower when done for immune-based inflammation (14.3%). conclusion: autograft tissue for lt is always preferable to allografts to surgically treat lscd, as clinical success is significantly higher, and systemic immunosuppression is avoided. as expected, immune-based disorders are the most difficult cases to treat. lt has been shown to be an excellent option for recurrent pterygium, although prospective studies need to be performed to further corroborate these results.
Innovation and evaluation. Proposals for improving cross-project training university students in Education
Antonio Romero Muoz,Inmaculada González Falcón
Revista Electronica Interuniversitaria de Formación del Profesorado , 2010,
Abstract: This article reflects the results of the evaluation in the educational innovation project called "City of Rainbows", that has been developed at the University of Huelva since the academic year 2002/03.The experience, aims, tools and the process of evaluation followed are briefly described in it, focusing especially on evaluation an proposals for improvement which the various participants (faculty lecturer, students of Education, and actual teachers) make on the impact of this innovation project to train the students of the Faculty of Education
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