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Search Results: 1 - 10 of 6115 matches for " Mercedes; Bermúdez-Escobar "
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Violencia sexual en jóvenes de 10 a 19 a?os. Cali, 2001-2006
Restrepo-Gutiérrez,Ana C.; Salcedo-Cifuentes,Mercedes; Bermúdez-Escobar,Amparo;
Revista de Salud Pública , 2009, DOI: 10.1590/S0124-00642009000600005
Abstract: objective characterising sexual violence reported by youngsters aged 10 to 19 in cali between 2001 and 2006. components and methods young people aged 10 to 19 who had been referred to a forensic clinic by a competent authority between 2001 and 2006 were defined as being presumed victims of sexual crimes. variables of time, place and personsubjected to sexual crime committed by a family member (intrafamily), an acquaintance or unknown public individual (extrafamily) were compared. there were 661 cases of presumed victims of sexual abuse from both sexes in the age-range being studied. the information was taken from the forensic clinic's patient records. chi square and relative risk were used in the statistical analysis of the data so collected concerning frequency for presumed sexual victims aged 10 to 19 and analysing the relationships between variables. results 83 % of the cases in the study were female, 78 % were students and more than 50 % were 15 year-old minors. the aggressors were known in 78 % of the cases. a significant association was found between involvement with the aggressor and the place where the incident occurred with a victim's age. conclusions the characteristics of sexual violence occurring in adolescents were constant and comparable with historical studies where family dynamics and organisation made such scene opportune for this type of violent act to be perpetrated.
Long-Term Prognostic Factors in Patients with Significant Left Main Coronary Artery Disease  [PDF]
Mercedes Camprubí, Ramón de Castro, Mohsen Mohandes, Jordi Guarinos, Miriam Garcia-Bermúdez, Alfredo Bardají
International Journal of Clinical Medicine (IJCM) , 2014, DOI: 10.4236/ijcm.2014.55032
Abstract:

Introduction and Objectives: The natural history of patients with left main coronary artery disease (LMCAD) is largely unknown. Our objective was to analyse the predictors of long-term mortality in these patients, both those that have had surgery and those that have not undergone surgery for various reasons, in a cohort treated at a university hospital. Methods: The study included patients with significant LMCAD diagnosed through consecutive coronary angiograms from 2001 to 2009. Clinical variables, the reasons for cardiac catheterisation, therapeutic decisions and clinical evolution in long-term follow-up were analysed. Results: Of the 163 patients included in the analysis, a total of 109 (66.9%) underwent revascularisation, while the remaining 54 (33.1%) received other medical treatment. We analysed the clinical events that took place with a mean follow-up period of 54 months (IQR: 25-95). The non-revascularised group had a lower survival rate than the revascularised group in unadjusted analysis (logrank test 0.005). Age (OR 1.04, CI 1.02-1.07, p = 0.001), ventricular dysfunction (OR 2.87, CI95% 1.71-4.81, p < 0.0001), clinical instability (OR 2.11, CI95% 1.08 to 4.13, p = 0.028) and above 70% severity of LMCAD (OR 1.78, CI 1.09 to 2.91, p = 0.021) were independent predictors of mortality for the entire cohort, but revascularisation was not. Conclusions: Revascularisation is associated with improved survival in patients with LMCAD, but only age, ventricular dysfunction, clinical instability and the severity of the lesion are independent predictors of long-term

MODELO INTEGRAL DE GERENCIA PúBLICA ESTRATéGICO CON CALIDAD
Silvia Elena González Bermúdez,Mercedes Delgado Fernández
Ingeniería Industrial , 2010,
Abstract:
Estudio del perfil de anticuerpos contra Helicobacter pylori producidos por pacientes con diferentes patologías gastroduodenales
Bermúdez Olga María,Bravo María Mercedes,Spinel Clara
Acta Biológica Colombiana , 2004,
Abstract: La colonización de la mucosa gástrica con Helicobacter pylori causa la infección bacteriana más frecuente a nivel mundial que es la mayor causa de enfermedades gastrointestinales en humanos. Con el objetivo de examinar el reconocimiento de antígenos de dos cepas de la bacteria en 150 pacientes infectados y con inflamación (30 de gastritis crónica no atrófica G), úlcera duodenal (30 UD), patologías preneoplásicas (30 de gastritis atrófica GA y 30 de metaplasia intestinal MI) y adenocarcinoma gástrico (30 C), se realizó un sistema de cultivo de Helicobacter pylori con células epiteliales gástricas. Los sobrenadantes de estos cocultivos fueron empleados como preparación antigénica en pruebas de inmunotransferencia, en las que se detectaron los anticuerpos IgG totales, al igual que sus cuatro subclases (IgG1, IgG2, IgG23, IgG4) en los sueros de los pacientes. Se encontró que los perfiles antigénicos de las dos cepas de Helicobacter pylori, aisladas de un paciente con úlcera duodenal y uno con adenocarcinoma gástrico, eran semejantes, con 23 proteínas comunes que incluían los principales factores de virulencia de la bacteria (CagA, VacA, Ureasa, Flagelina). Aunque los sueros mostraron un reconocimiento variado de cada uno de los antígenos, no se encontraron diferencias entre el número de antígenos reconocidos según la patología ni la cepa, tanto para las IgG totales (p = 0,98), como cada una de las subclases (IgG1:p = 0,97; IgG2: p = 0,72; IgG3: p = 0,61; IgG4: p = 0,84). Con el fin de analizar simultáneamente la respuesta de los pacientes hacia el total de los 23 antígenos, se aplicaron análisis multivariados gracias a los cuales se distinguieron cuatro proteínas, de 70, 82, 90 kDa y VacA de 86 kDa como los principales antígenos implicados en la respuesta inmune de las personas infectadas. Adicionalmente, se diferenciaron dos grupos de patologías según el reconocimiento del conjunto de antígenos: por una parte, los pacientes con G, GA y C relacionados con el reconocimiento frecuente de los antígenos VacA y el antígeno de 90 kDa, y por otra parte, los pacientes con UD y MI, asociados con el antígeno de 70 kDa. Estos resultados muestran que la respuesta hacia los antígenos de Helicobacter pylori, además de resultar específica y variada, actúa como un indicador de la patología desarrollada luego de la infección, distinguiendo los dos procesos excluyentes de formación de úlcera y cáncer. Al determinar la respuesta específica dada por cada subclase de IgG, se observó que los antígenos eran reconocidos especialmente por la IgG2, con menor frecuencia por la IgG1 e
Síndrome de May-Thurner: causa infrecuente de rotura espontánea de vena ilíaca izquierda May-Thurner syndrome: an infrequent cause of spontaneous left iliac vein rupture
E. Gordillo-Escobar,J.J. Egea-Guerrero,J. Revuelto-Rey,R. Martín-Bermúdez
Medicina Intensiva , 2012,
Abstract:
Bone Regeneration in Rat Cranium Critical-Size Defects Induced by Cementum Protein 1 (CEMP1)
Janeth Serrano, Enrique Romo, Mercedes Bermúdez, A. Sampath Narayanan, Margarita Zeichner-David, Leticia Santos, Higinio Arzate
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0078807
Abstract: Gene therapy approaches to bone and periodontal tissue engineering are being widely explored. While localized delivery of osteogenic factors like BMPs is attractive for promotion of bone regeneration; method of delivery, dosage and side effects could limit this approach. A novel protein, Cementum Protein 1 (CEMP1), has recently been shown to promote regeneration of periodontal tissues. In order to address the possibility that CEMP1 can be used to regenerate other types of bone, experiments were designed to test the effect of hrCEMP1 in the repair/regeneration of a rat calvaria critical-size defect. Histological and microcomputed tomography (μCT) analyses of the calvaria defect sites treated with CEMP1 showed that after 16 weeks, hrCEMP1 is able to induce 97% regeneration of the defect. Furthermore, the density and characteristics of the new mineralized tissues were normal for bone. This study demonstrates that hrCEMP1 stimulates bone formation and regeneration and has therapeutic potential for the treatment of bone defects and regeneration of mineralized tissues.
Influencia del material de enmienda en el compostaje de lodos de Plantas de Tratamiento de Aguas Residuales - PTAR
Torres Lozada,Patricia; Escobar,Juan Carlos; Pérez Vidal,Andrea; Imery V.,Ricardo; Nates,Paola; Sánchez,Guillermo; Sánchez,Martha; Bermúdez,Alejandro;
Ingeniería e Investigación , 2005,
Abstract: aerobic composting employing manual turning was evaluated by using the sludge produced by emcali eice esp?s ca?averalejo wastewater treatment plant (ptar-c). compost (in 1.0 ton piles) consisted of sludge, a fixed proportion of bulking agent (10%) and amendment material. sugarcane waste and solid organic (marketplace) waste were evaluated as amendment material using 20/80 and 40/60 weight/weight (amendment/sludge) ratios. incorporating the amendment material improved the compost, being reflected in a faster start for the thermophilic phase, higher temperatures being maintained (>55oc) and better c/n ratio obtained in the compost in all treatments compared to the pile which had no amendment added to it. incorporating the bulking agent improved sludge manageability during composting; the best combination was 54% sludge + 10% sugarcane bagasse + 36% liquid sugarcane waste.
Prolapso de trompa uterina: reporte de casos y revisión de la literatura Fallopian tube prolapse: case reports and literature review
Lucía Mercedes Ni?o-Hernández,César Redondo-Bermúdez,Katherine Redondo de Oro,Olivia Marrugo-Grace
Revista Colombiana de Obstetricia y Ginecología , 2011,
Abstract: Objetivo: el prolapso de la trompa uterina constituye una complicación quirúrgica poco frecuente y habitualmente ocurre de manera secundaria a la histerectomía vaginal. Dicha patología constituye un reto diagnóstico dado el espectro de lesiones benignas y malignas a nivel del cuello uterino. El presente reporte de casos tiene como objetivo revisar la literatura respecto a la etiología, el diagnóstico y el tratamiento de la entidad. Materiales y métodos: se presentan tres casos de prolapso de trompa uterina, así como una revisión de la literatura, a través de una búsqueda electrónica en las bases de datos Medline vía PubMed, Hinari, SciELO y EMBASE, para recopilar información publicada, tanto en inglés como en espa ol, de los últimos 5 a os. Conclusión: el prolapso de trompa uterina poshisterectomía, ya sea vaginal o abdominal, es una complicación quirúrgica anómala. El diagnóstico definitivo se realiza por medio del estudio histopatológico, al evidenciar tejido tubárico asociado a un infiltrado inflamatorio. Para su tratamiento, diferentes técnicas quirúrgicas han sido propuestas con el objetivo de resecar, ya sea parcial o totalmente, la trompa prolapsada con reparo de la apertura vaginal. Objective: fallopian tube prolapsed is a rare surgical complication, usually occurring secondary to vaginal hysterectomy. Such pathology forms a diagnostic challenge, given the spectrum of cervical benign and malign lesions. The present case reports were aimed at revising the literature regarding the pertinent etiology, diagnosis and treatment. Materials and methods: three cases of fallopian tube prolapse are presented, as well as a literature review involving a search of PubMed via Medline, Hinari, SciELO and EMBASE databases to compile relevant information published in both English and Spanish during the last 5 years. Conclusion: post-hysterectomy fallopian tube prolapse, whether vaginal or abdominal, is a rare surgical complication. Definitive diagnosis is made by histopathological study when tubal tissue associated with inflammatory infiltrate has been shown. Different surgical techniques have been proposed for its treatment aimed at partially or totally removing the prolapsed tube and repairing the vaginal opening.
La recuperación del miocardio hibernado mejora el pronóstico de la cardiopatía isquémica metabólica
Bermúdez Arias,Fernando;
Gaceta Médica de Caracas , 2005,
Abstract: the physiopathologycal mechanisms of both stunning and hibernating myocardium and the connections between them have recently been the objet of multiple revisions. stunning is the contractil disfuntion of transitory character and variable duration (minutes to weeks), as consecuense of an acute or subacute ischemia period. nevertheless, is of limited importance because there is a good response to the inotropic stimulation and it is progressively solved in a spontaneous manner. their physiopathological mechanisms are not known and it is still debated whether it is fundamentally an ischemical sequel damage or a reperfusion undesirable collateral effect. this is especially true in the reperfusion initial phase when a fast oxygen free radicals increase takes place (either by coronary bypass surgery or by percutaneous transluminal coronary angioplasty). this does not occur when it is slowly done (pharmacologic revascularization). stunning and hibernating myocardium is defined as persistently impaired myocardial and left ventricular function at rest, resulting from reduced myocardial blood flow. it is postulated that despite the reduced coronary blood flow, metabolic activity is sufficient to prevent tissue necrosis. the hibernating myocardial definition is controverted, as the heart chronic disfunction in not well known because the it is coronary artery disease dependent. the heart hibernating response namely a cardiac function reduction to cope with a reduced myocardial blood flow, has been considered a self preservation act (little blood, little work) for which the hibernating heart is thought of "a smart heart". it have been show that a coronary flow severe decrease can give rise to an adaptive contractile activity and other heart functions reduction, within hours, days, months or years of duraction, without cellular death, but with adenosintriphosphate maintenance levels. in some cases of chronic hibernation, the coronary flow can be normal at the rest, suggesting that
Los tiempos verbales como marcadores evidenciales: El caso del pretérito perfecto compuesto
Bermúdez,Fernando;
Estudios filológicos , 2005, DOI: 10.4067/S0071-17132005000100012
Abstract: although it is widely recognized that people in everyday situations use tense morphemes "atypically" (for example present tense to describe events which are clearly in the past or past tense used to describe present or future events), most researchers insist on the idea that the main task of tense morphology is to encode temporality. in this paper we argue against this received theory of tense and propose instead an interpretation of tense morphemes as evidentiality/modality markers. moreover, an analysis of the river plate spanish present perfect tense is proposed that relies on this interpretation. all meanings attributed to the present perfect tense in the literature (resultative, iterative, mirative, grade of commitment, formality) are explained as extensions of the core evidential meaning, namely, "according to available evidence, i conclude/state x"
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