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Search Results: 1 - 10 of 2652 matches for " Rogelio Sepúlveda Infante "
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Frecuencia de diagnósticos histopatológicos en un periodo de 20 a?os (1989-2008)
Romero de León,Elías; Sepúlveda Infante,Rogelio;
Revista Cubana de Estomatolog?-a , 2010,
Abstract: to submit data on the histopathological diagnosis made in the oral pathology department of stomatology of autonomous university in nuevo león, monterrey, mexico during from 1989 to 2008. from 2 183 biopsies, bone tissue lesions accounted for 637 cases (29.2 %) and those that soft tissue summarized 1 529 (70 %), from dental tissue 17 samples (0.8 %) were processed. for bone tissue the more frequent diagnoses were: periapical granulomas, periapical cyst, dentigerous cyst and odontogenic keratocyst (keratogenic odontogenic tumor). the more frequent diagnoses for the soft tissue are: fibroma, pyogenic granulomas, mucocele, epidermoid carcinoma and papiloma. in maxillary there were 292 cases, in maxilla 258 and in 87 samples there was no specification from which maxillary was obtained the biopsy. in soft tissue, from gum 505 biopsies were obtained, from inferior lip 164, from soft tissue 157 were not specified, tongue 147, alveolar mucosa 146, hard palate 89 and other areas underwent 321 biopsies. from female patients 1 370 biopsies were obtained (62.8 %) and from male patients 796 biopsies (36.4 %). there was a coincidence of 1 482 cases (67.9 %) between the clinical diagnosis and the histopathological one, the no coincident ones summarized 172 (7.9 %) and 529 cases (24.2 %) where there wasn't clinical diagnosis being acceptable according to similar studies, but could be significantly improved by a continuous education.
Proporción de concordancia entre los diagnósticos clínico e histopatológico bucofaciales durante 20 a?os
Sepúlveda Infante,Rogelio; Romero de León,Elías;
Revista Cubana de Estomatolog?-a , 2011,
Abstract: to determine the proportion of agreement between the clinical and histopathologic diagnoses of study biopsies in the oral pathology department. from the registry book from years 1989 to 2008 the histopathologic diagnoses of 2 183 biopsies were collected codifying the different study variables and were processed using epi info to obtain the frequencies end percentages. this study presents a 7.9 % of agreement, a slight agreement of 13.8 %, no-agreement of 7.9 % and without clinical diagnosis of 24.2 %. the salivary glands lesions showed the high agreement for the 66.8 % and for the bone tissue the non-odontogenic cysts occupied the first place of agreement for the 80.0 %. there was an acceptable agreement higher than other similar studies. there is the possibility to improve these features by means of a continuous updating of the clinical diagnoses.
Frecuencia de diagnósticos histopatológicos en un periodo de 20 a os (1989-2008) Histopathological diagnosis frequency during 20 years (1989-2008)
Elías Romero de León,Rogelio Sepúlveda Infante
Revista Cubana de Estomatolog?-a , 2010,
Abstract: Presentar datos sobre el diagnóstico histopatológico que se realizó en el Departamento de Patología Oral de la Facultad de Odontología de la Universidad Autónoma de Nuevo León, Monterrey, México, durante el periodo 1989 a 2008. De 2 183 biopsias, las lesiones de tejido óseo comprendieron 637 casos (29,2 %) y las de tejido blando sumaron 1 529 (70,0 %), de tejido dental se procesaron 17 muestras (0,8 %). Los diagnósticos más frecuentes para tejido óseo fueron: granuloma periapical, quiste periapical, quiste dentígero y queratoquiste odontogénico (tumor odontogénico queratoquístico). Los diagnósticos más frecuentes de tejido blando fueron: fibroma, granuloma piógeno, mucocele, carcinoma epidermoide y papiloma. En el maxilar se presentaron 292 casos, en la mandíbula 258 y en 87 muestras no se especificó el maxilar de donde se obtuvo la biopsia. En el tejido blando, de encía se obtuvieron 505 biopsias; labio inferior 164, tejido blando sin especificar 157, lengua 147, mucosa alveolar 146, paladar duro 89 y otras áreas presentaron 321 muestras. De pacientes femeninos fueron 1 370 muestras (62,8 %) y los masculinos con 796 biopsias (36,4 %). Hubo coincidencia entre el diagnóstico clínico con el histopatológico de 1 482 casos (67,9 %), los casos no coincidentes fueron 172 (7,9 %) y 529 casos (24,2 %) donde no se proporcionó diagnóstico clínico, lo cual es aceptable de acuerdo a estudios similares, pero puede ser mejorado substancialmente a través de educación continua. To submit data on the histopathological diagnosis made in the Oral Pathology Department of Stomatology of Autonomous University in Nuevo León, Monterrey, Mexico during from 1989 to 2008. From 2 183 biopsies, bone tissue lesions accounted for 637 cases (29.2 %) and those that soft tissue summarized 1 529 (70 %), from dental tissue 17 samples (0.8 %) were processed. For bone tissue the more frequent diagnoses were: periapical granulomas, periapical cyst, dentigerous cyst and odontogenic keratocyst (keratogenic odontogenic tumor). The more frequent diagnoses for the soft tissue are: fibroma, pyogenic granulomas, mucocele, epidermoid carcinoma and papiloma. In maxillary there were 292 cases, in maxilla 258 and in 87 samples there was no specification from which maxillary was obtained the biopsy. In soft tissue, from gum 505 biopsies were obtained, from inferior lip 164, from soft tissue 157 were not specified, tongue 147, alveolar mucosa 146, hard palate 89 and other areas underwent 321 biopsies. From female patients 1 370 biopsies were obtained (62.8 %) and from male patients 796 biopsies (36.4 %).
Proporción de concordancia entre los diagnósticos clínico e histopatológico bucofaciales durante 20 a os Proportion of agreement between the clinical and the histopathologic diagnosis during 20 years
Rogelio Sepúlveda Infante,Elías Romero de León
Revista Cubana de Estomatolog?-a , 2011,
Abstract: Se realizó un estudio para determinar la proporción de concordancia entre los diagnósticos clínico e histopatológico de las biopsias estudiadas en el departamento de Patología Bucal de la Facultad de Odontología de la Universidad Autónoma de Nuevo León. Se recopilaron los diagnósticos histopatológicos de 2 183 biopsias a partir del libro de registro de los a os 1989 a 2008. Se asignaron códigos a las distintas variables estudiadas y se procesaron con Epi Info para obtener las frecuencias y porcentajes. El estudio presentó una concordancia del 54,1 %, ligera discordancia del 13,8 %, no concordancia de 7,9 % y sin diagnóstico clínico un 24,2 %. Las lesiones en glándulas salivales presentaron la mayor concordancia con un 66,8 % y para tejido óseo los quistes no odontogénicos ocuparon el primer lugar de concordancia con el 80,0 %. Se encontró una concordancia aceptable, superior a otros estudios similares. Existe la posiblidad de mejorar el nivel científico mediante la actualización continua de los clínicos. To determine the proportion of agreement between the clinical and histopathologic diagnoses of study biopsies in the Oral Pathology Department. From the registry book from years 1989 to 2008 the histopathologic diagnoses of 2 183 biopsies were collected codifying the different study variables and were processed using Epi Info to obtain the frequencies end percentages. This study presents a 7.9 % of agreement, a slight agreement of 13.8 %, no-agreement of 7.9 % and without clinical diagnosis of 24.2 %. The salivary glands lesions showed the high agreement for the 66.8 % and for the bone tissue the non-odontogenic cysts occupied the first place of agreement for the 80.0 %. There was an acceptable agreement higher than other similar studies. There is the possibility to improve these features by means of a continuous updating of the clinical diagnoses.
Carcinoma odontogénico de células claras
Flores Alvarado,Sergio Alberto; Morales Casas,José; Sepúlveda Infante,Rogelio; Romero de León,Elías;
Revista Cubana de Estomatolog?-a , 2011,
Abstract: clear cell odontogenic carcinoma is a rare malignant odontogenic neoplasm, with a predilection for the anterior segment of the jaws, and presenting basically in women between the fifth and seventh decades of life. ccoc is composed histopathologycally by strands or groups of cells showing clear cytoplasm associated with cells showing eosinophilic cytoplasm and some times with tall columnar cells that resambled ameloblasts. ccoc is considered a low-grade malignancy but in some cases its behavior is aggressive giving local and distant metastasis, so the recommended treatment is a radical resection and follows the patient very close. ccoc should be diferenciated microscopically from other local and metastatic lesions that are composed with clear cells also, in order to render a proper diagnosis and treatment. we are presenting a clinical case corresponding to a 69 years old female patient, with a 10 year history of a slow growing anterior mandibular lesion without lymph node or distant metastasis, with a biopsy diagnosis of clear cell odontogenic carcinoma, the patient was treated by partial resection of the anterior mandible and reconstructed with a titanium plate.
Carcinoma odontogénico de células claras Odontogenic carcinoma of clear cells
Sergio Alberto Flores Alvarado,José Morales Casas,Rogelio Sepúlveda Infante,Elías Romero de León
Revista Cubana de Estomatolog?-a , 2011,
Abstract: El carcinoma odontogénico de células claras es un raro tumor odontogénico que se presenta principalmente en la parte anterior de la mandíbula, mayormente en mujeres entre la quinta y séptima década de vida. Se caracteriza histológicamente por redes de células con citoplasma claro mezcladas con células que contienen citoplasma eosinófilo. Es sumamente agresivo y puede presentar metástasis local o a distancia. Al emplearse el tratamiento por enucleación y curetaje, frecuentemente da lugar a recurrencia, por lo que se aconseja el tratamiento radical de resección mandibular hasta una zona libre de lesión. El carcinoma odontogénico de células claras debe ser considerado en el diagnóstico diferencial de tumores mandibulares que presenten células claras para el establecimiento del plan de tratamiento adecuado. Se debe incluir el seguimiento a largo plazo del paciente. Se presenta el caso de un paciente femenino de 69 a os de edad, con una lesión presente en la región presinfisaria derecha, sin afectación de ganglios linfáticos regionales o metástasis aparente. Se efectuó osteotomía segmentaria mandibular y reconstrucción con placa de titanio. Clear cell odontogenic carcinoma is a rare malignant odontogenic neoplasm, with a predilection for the anterior segment of the jaws, and presenting basically in women between the fifth and seventh decades of life. CCOC is composed histopathologycally by strands or groups of cells showing clear cytoplasm associated with cells showing eosinophilic cytoplasm and some times with tall columnar cells that resambled ameloblasts. CCOC is considered a low-grade malignancy but in some cases its behavior is aggressive giving local and distant metastasis, so the recommended treatment is a radical resection and follows the patient very close. CCOC should be diferenciated microscopically from other local and metastatic lesions that are composed with clear cells also, in order to render a proper diagnosis and treatment. We are presenting a clinical case corresponding to a 69 years old female patient, with a 10 year history of a slow growing anterior mandibular lesion without lymph node or distant metastasis, with a biopsy diagnosis of clear cell odontogenic carcinoma, the patient was treated by partial resection of the anterior mandible and reconstructed with a titanium plate.
Síndrome de ectrodactilia, displasia ectodérmica y labio-paladar hendidos
Salazar Fernández,Mario A.; Romero de León,Elías; Menchaca Flores,Pedro N.; Torre Martinez,Hilda H. H.; Sepúlveda Infante,Rogelio;
Revista Cubana de Estomatolog?-a , 2010,
Abstract: in present paper is reported the case of a patient presenting with the complete triad of ectrodactylism syndrome, ectodermic dysplasia and lip-cleft palate, to mention the clinical findings present in assessments as well as the treatments applied. the syndrome is characterized by the triad ectrodactylism, ectodermic dysplasia and cleft (eec) and it is autosomal dominant with incomplete penetration and a variable expressiveness. this group of signs and symptoms may be cofounded with other clinical entities, leading to a mistake diagnosis of patient. lip cleft and lack of lacrimal duct is not a usual combination in other conditions. this is the clinical case of a male patient aged 12 with the syndrome of: ectrodactylism, ectodermic dysplasia and lip-cleft palate. clinical manifestations reported in literature are mentioned emphasizing the maxillofacial and dental manifestations. the two brothers of patient were normal or free of this syndrome. it is very important that the professionals charged of oral and maxillofacial health, as well the stomatology students of bachelor degree of postgraduate level, be able to identify, diagnose and to work in a multidisciplinary way to arrive to definite diagnosis of patients presenting with eec syndrome and to apply the appropriate treatments.
Sistema para la generación automática de mapas de rendimiento. Aplicación en la agricultura de precisión System for the automatic generation of yield mapping with application in precision farming
Carlos Lago González,Juan Carlos Sepúlveda Pe?a,Rogelio Barroso Abreu,Félix óscar Fernández Pe?a
IDESIA , 2011,
Abstract: La creciente preocupación medioambiental y la necesidad de producir alimentos de calidad de una manera sostenible y respetuosa con el entorno ubican al sector agroalimentario en el punto de mira de la sociedad. El empleo de la tecnología del Sistema de Posicionamiento Global (GPS, siglas en inglés) en el ámbito civil, ha fomentado el surgimiento de nuevas fuentes de desarrollo, entre las que se puede mencionar la Agricultura, y muy particularmente la Agricultura de Precisión. Muy brevemente se puede definir como la posibilidad de aplicar tratamientos distintos a escala local de un cultivo y obtener una mayor producción con un menor costo. El rendimiento agrícola resume el resultado de todo el ciclo de producción de un cultivo, por lo que su censado y mapeo brindan la posibilidad de conocer cómo fue su variabilidad sobre el terreno y ofrecen la posibilidad de manejarlo. Con la elaboración de un mapa de rendimiento del cultivo y una vez obtenido el rendimiento de cada punto se le puede aplicar una dosis variable de pesticidas, abonos, fertilizantes, etc., contribuyendo a minimizar el costo de la producción y a lograr un mejor equilibro ambiental. The growing environmental concern and the necessity to produce quality foods in a sustainable way which respects the environment have put the agricultural sector under the scrutiny of society. The employment of the Global Positioning System (GPS) technology in the civilian sector has sparked the emergence of new technological applications, in agriculture and very particularly in Precision Agriculture, considered to be among the 10 most important sciences for the XXI century. Precision agriculture refers to the application of different treatments at the local cultivation scale, which achieves greater production and better product quality with lower costs. Agricultural yield is the best indicator of the entire cultivation cycle of a crop; its census and mapping allows the variability of the area to be determined and managed. To achieve this it is necessary to produce a yield map of the cultivated area; once the yield of each point (understood to be a very small area inside a field, for example a cell of a square meter) is obtained, variable doses of pesticides, fertilizers, etc. may be applied, contributing to minimize production costs and to achieve a better environmental balance.
Multicriteria Analysis for Improving the Innovation Capability in Small and Medium Enterprises in Emerging Countries  [PDF]
Juan Sepúlveda, Elizardo Vasquez
American Journal of Industrial and Business Management (AJIBM) , 2014, DOI: 10.4236/ajibm.2014.44027
Abstract:

In this paper we describe an analytical model to determine the innovation capability of a small and medium enterprise (SME) as the first step towards the continuous improvement of performance in such a dimension of an organization. The model first assesses organizational variables and classifies companies by using the Flowsort? multicriteria method. As second step, the classification module categorizes SMEs into four classes of companies: passive, reactive, proactive, proactive. From this sorting and the subsequent analysis of the variables measured by the survey, it is determined the set of best management practices for innovation that the company needs to implement in order to increase their level of performance. The application of the model to nine companies in Chile is shown along with numerical results. Evaluations show that the classification is consistent with expert judgment and that effectively identifies those areas that contribute most to the increase of the innovation capability in the SMEs.

Multidimensional Design Paradigms for Data Warehouses: A Systematic Mapping Study  [PDF]
Ania Cravero, Samuel Sepúlveda
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.71006
Abstract:

Data warehouses (DW) must integrate information from the different areas and sources of an organization in order to extract knowledge relevant to decision-making. The DW development is not an easy task, which is why various design approaches have been put forward. These approaches can be classified in three different paradigms according to the origin of the information requirements: supply-driven, demand-driven, and hybrids of these. This article compares the methodologies for the multidimensional design of DW through a systematic mapping as research methodology. The study is presented for each paradigm, the main characteristics of the methodologies, their notations and problem areas exhibited in each one of them. The results indicate that there is no follow-up to the complete process of implementing a DW in either an academic or industrial environment; however, there is also no evidence that the attempt is made to address the design and development of a DW by applying and comparing different methodologies existing in the field.

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