oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 3 )

2018 ( 5 )

2017 ( 11 )

2016 ( 6 )

Custom range...

Search Results: 1 - 10 of 6829 matches for " Orlando; Escalona Arias "
All listed articles are free for downloading (OA Articles)
Page 1 /6829
Display every page Item
Composición química y tamizaje fitoquímico del polvo de hojas y reto os del Anacardium occidentale L. (mara ón) Chemical composition and phytochemical screening of leaf and shoot powder of Anacardium occidentale L. (cashew tree)
Yordan Martínez Aguilar,Orlando Martínez Yero,Ariel Escalona Arias,Fernando Soto Rodríguez
Revista Cubana de Plantas Medicinales , 2012,
Abstract: Introducción: la composición química y el tamizaje fitoquímico de una planta medicinal puede definir sus beneficios; la literatura refiere información de estas determinaciones en la fruta del Anacardium occidentale L.; no obstante, en cuanto a las hojas y reto os no se encontró información suficiente. Objetivo: determinar la composición química y el tamizaje fitoquímico en el polvo de hojas y reto os del Anacardium occidentale L. Métodos: en el polvo de hojas y reto os de Anacardium occidentale L. se determinó la composición bromatológica, algunos carbohidratos, material saponificable, fitoesteroles, minerales, ácidos grasos y tamizaje fitoquímico; mediante técnicas del Ministerio de Salud Pública, Official Methods of Analysis, cromatografía gaseosa, espectrofotometría de absorción atómica y cromatografía líquida de alta eficiencia. Resultados: el polvo de hojas y reto os de A. occidentale mostró un aceptable contenido de materia seca, proteína bruta, betasitosterol y stigmasterol. El ácido graso saturado octadecanoico y el monoinsaturado gadoleico se detectaron con mayores cuantías en el polvo. Se observó una concentración significativa del potasio y del mineral traza manganeso. En el tamizaje fitoquímico, el extracto etéreo no presentó alcaloides, las coumarinas y quinonas se detectaron en el extracto etanólico y acuoso, respectivamente. Las antocianidinas, triterpenos o esteroides y taninos se observaron en el extracto etanólico. Además en ambos extractos (acuoso y etanólico) se detectaron flavonoides y saponinas. Conclusiones: según la composición química y la presencia de metabolitos secundarios benéficos en el polvo de las hojas y reto os de A. occidentale se recomienda el estudio de este polvo en humanos y animales, como nutracéutico o terapéutico. Introduction: the chemical composition and phytochemical screening of a medicinal plant can define its benefits. The literature covers information about these determinations on the fruit of Anacardium occidentale L. but little information was found about its leaves and shoots. Objective: to determine the chemical composition and phytochemical screening in the leaf and shoot powder from Anacardium occidentale L. Methods: bromatological composition, some carbohydrates, saponifiable material, phytosterols, minerals, fatty acids and phytochemical screening were determined in leaf and shoot powder from Anacardium occidentale L., using techniques approved by the Ministry of Public Health, Official Methods of Analysis, gas chromatography, atomic absorption spectrophotometer and high-performance liquid chromato
Composición química y tamizaje fitoquímico del polvo de hojas y reto?os del Anacardium occidentale L. (mara?ón)
Martínez Aguilar,Yordan; Martínez Yero,Orlando; Escalona Arias,Ariel; Soto Rodríguez,Fernando; Valdivié Navarro,Manuel;
Revista Cubana de Plantas Medicinales , 2012,
Abstract: introduction: the chemical composition and phytochemical screening of a medicinal plant can define its benefits. the literature covers information about these determinations on the fruit of anacardium occidentale l. but little information was found about its leaves and shoots. objective: to determine the chemical composition and phytochemical screening in the leaf and shoot powder from anacardium occidentale l. methods: bromatological composition, some carbohydrates, saponifiable material, phytosterols, minerals, fatty acids and phytochemical screening were determined in leaf and shoot powder from anacardium occidentale l., using techniques approved by the ministry of public health, official methods of analysis, gas chromatography, atomic absorption spectrophotometer and high-performance liquid chromatography. results: the leaf and shoot powder from anacardium occidentale l. showed an acceptable content of dry matter, crude protein, beta-sitosterol and stigmasterol. saturated fatty acid and monounsaturated octadecenoic, gadoleic larger amounts were detected in the powder. there was a significant concentration of potassium and manganese trace mineral. in the phytochemical screening, the ether extract showed no alkaloids, the coumarins and quinones were detected in the ethanol and aqueous extract, respectively. anthocyanidins, triterpenes or steroids and tannins were observed in the ethanol extract. also, in both extracts (aqueous and ethanolic) flavanoids and saponins were detected. conclusions: according to the chemical composition and the presence of beneficial secondary metabolites, it is recommended to study the use of leaf and shoot powder from a. occidentale in humans and animals as a nutraceutic or therapeutical agent.
Electrocauterización de la membrana de Bowman para el tratamiento de la queratopatía bullosa dolorosa
Escalona Leyva,Elizabeth; Casas Arias,Xiomara;
Revista Cubana de Oftalmolog?-a , 2002,
Abstract: the purpose of this paper is to evaluate the electrocauterization of bowman's membrane as a surgical alternative in the treatment of painful bullous keratopathy. 30 eyes from 30 patients who were diagnosed painful bullous keratopathy and had not improved with the habitual treatments were studied. age, sex, ethiology, time of evolution, epithelialization, complications and the symptomatic relief were taken as fundamental variables. data were manually tabulated, taking into account the number of patients. the psotsurgical bullous keratopathy (aphakic y pseudophakic) prevailed in 83.3 % of the patients. the most affected were those over 60 (63.3 %). no significant differences were found in relation to sex. the time of epithelialization was from 7 to 14 days in 93.3 % of the patients and complications were not severe and were only observed in 14 %. the relief of the symptoms was observed in 66.6 % during the first week of the postoperative. the electrocauterization of bowman's membrane is an efficient and simple method with satisfactory results in the treatment of painful bullous keratopathy
Electrocauterización de la membrana de Bowman para el tratamiento de la queratopatía bullosa dolorosa Electrocauterization of Bowman's membrane for the treatment of painful bullous keratopathy
Elizabeth Escalona Leyva,Xiomara Casas Arias
Revista Cubana de Oftalmolog?-a , 2002,
Abstract: El propósito en este trabajo es evaluar la electrocauterización de la membrana de Bowman como alternativa quirúrgica en el tratamiento de la queratopatía bullosa dolorosa. Se estudiaron 30 ojos de 30 pacientes con diagnóstico de queratopatía bullosa dolorosa que no habían logrado mejoría con los tratamientos habituales. Se tomaron como variables fundamentales la edad, el sexo, la etiología, el tiempo de evolución, la epitelización, las complicaciones y el alivio sintomático, los datos se tabularon de forma manual teniendo en cuenta el universo de pacientes. Predominó la queratopatía bullosa posquirúrgica (afáquicas y pseudofáquicas) en el 83,3 % de los pacientes. Las edades más afectadas fueron los mayores de 60 a os (63,3 %); no se encontraron diferencias significativas en cuanto al sexo. El tiempo de epitelización fue de 7 a 14 días en el 93,3 % de los pacientes y solo se encontraron complicaciones en el 14 % que no fueron de gravedad. El alivio de los síntomas se produjo en el 66,6 % en la primera semana del posoperatorio. La electrocauterización de la membrana de Bowman constituye un método eficaz, sencillo y con resultados satisfactorios en el tratamiento de la queratopatía bullosa dolorosa The purpose of this paper is to evaluate the electrocauterization of Bowman's membrane as a surgical alternative in the treatment of painful bullous keratopathy. 30 eyes from 30 patients who were diagnosed painful bullous keratopathy and had not improved with the habitual treatments were studied. Age, sex, ethiology, time of evolution, epithelialization, complications and the symptomatic relief were taken as fundamental variables. Data were manually tabulated, taking into account the number of patients. The psotsurgical bullous keratopathy (aphakic y pseudophakic) prevailed in 83.3 % of the patients. The most affected were those over 60 (63.3 %). No significant differences were found in relation to sex. The time of epithelialization was from 7 to 14 days in 93.3 % of the patients and complications were not severe and were only observed in 14 %. The relief of the symptoms was observed in 66.6 % during the first week of the postoperative. The electrocauterization of Bowman's membrane is an efficient and simple method with satisfactory results in the treatment of painful bullous keratopathy
Fístula arteriovenosa postraumática. A propósito de un caso: dos flagelos del subdesarrollo. A propósito de un caso atendido en Timor Leste
Otero Reyes,Manuel; González Escalona,Denis; Duménigo Arias,Oscar; Gordis Aguilera.,María;
MediSur , 2010,
Abstract: the traumatisms that affect the extremities represent 80% of all the vascular traumatisms approximately. the inadequate handling of these it contributes to fateful consequences as the loss of the life or of the function of the extremity. the vascular lesions for firearm constitute one of the main causes with the appearance of arteriovenous fistula. we present the case of a 36 year old masculine patient with antecedents of having hurt 1 year ago by firearm in the root of the left thigh goes to present increase of volume of the extremity and difficulty to the march with sensation of fatigue and gravity. to the physical exam increase of volume of the limb more marked affection was verified in the root of the thigh, in the area related with the bullet impact thrill is felt and blow holosistólico is auscultated. the echo doppler and the tomography with contrast use evidenced the presence of a arteriovenous fistula. with this diagnosis was carried out surgical exploration and repair by means of veins bond for exclusion and interference of ilio-femoral arterial implant of politetrafluoroethylene (ptfe). the postoperative evolution was satisfactory with regression of all the clinical signs.
Traumatic arteriovenous fistula. Apropos of a case Fístula arteriovenosa postraumática. A propósito de un caso
Manuel Otero Reyes,Denis González Escalona,Oscar Duménigo Arias,María Victoria Gordis Aguilera.
MediSur , 2011,
Abstract: The traumatisms that affect the extremities represent 80% of all the vascular traumatisms approximately. The inadequate handling of these it contributes to fateful consequences as the loss of the life or of the function of the extremity. The vascular lesions for firearm constitute one of the main causes with the appearance of arteriovenous fistula. We present the case of a 36 year old masculine patient with antecedents of having hurt 1 year ago by firearm in the root of the left thigh goes to present increase of volume of the extremity and difficulty to the march with sensation of fatigue and gravity. To the physical exam increase of volume of the limb more marked affection was verified in the root of the thigh, in the area related with the bullet impact thrill is felt and blow holosistólico is auscultated. The echo doppler and the tomography with contrast use evidenced the presence of a arteriovenous fistula. With this diagnosis was carried out surgical exploration and repair by means of veins bond for exclusion and interference of ilio-femoral arterial implant of politetrafluoroethylene (PTFE). The postoperative evolution was satisfactory with regression of all the clinical signs. Los traumatismos vasculares representan aproximadamente el 80 % de todos los traumatismos que afectan a las extremidades. El manejo inadecuado de estos ocasiona consecuencias funestas como la pérdida de la vida o de la función de la extremidad. Las lesiones vasculares por arma de fuego constituyen una de las principales causas de la aparición de fístulas arteriovenosas. Se presenta el caso de un paciente de sexo masculino de 36 a os de edad, con antecedentes de herida por arma de fuego en la raíz del muslo izquierdo, este paciente acudió a la consulta del servicio de Angiología, por presentar aumento de volumen en la extremidad y se le dificultaba la marcha, además sentía sensación de cansancio. Al realizar el examen físico se constató aumento de volumen del miembro afectado más pronunciado en la raíz del muslo, en la zona relacionada con el impacto de bala se palpó frémito y se auscultó soplo holosistólico. La ecocardiografía Doppler y la tomografía con uso de contraste evidenciaron la presencia de una fístula arteriovenosa. Con este diagnóstico se realizó una exploración quirúrgica y la reparación mediante ligadura venosa por exclusión e interposición de injerto arterial ilio-femoral de politetrafluoroetileno. La evolución postoperatoria fue satisfactoria con regresión de todos los signos clínicos.
Software para la ense?anza y entrenamiento en la construcción de matrices para planeación estratégica de sistemas de información
Arias Sanabria,Javier Andrés; Cortés Alda,Félix Antonio; Córtes Aldana,Jaime Orlando;
Ingeniería e Investigación , 2010,
Abstract: strategic information systems planning (sisp) allows an organisation to determine a portfolio of computer-based applications to help it achieve its business objectives. ibm's business system planning for strategic alignment (bsp/sa) is an important technique for developing a strategic plan for an entire company's information resource. bsp/sa has been described in terms of stages and the specific tasks within them. tasks are usually done manually and require some experience. this work was thus aimed at presenting a computer-based application that automates two of the most important tasks in bsp/sa methodology: process-organisation matrix (pom) and processes-data classes-matrix (pdm). special emphasis was placed on analysing, designing and implementing systems development life-cycle for developing the software. an important part of the analysis consisted of conducting a literature review and the semi-structured interviews with some experts in sisp. a special contribution of the present work is the design and implementation of statistical reports associated with each matrix. automating this task has facilitated students being able to analyse pom and pdm during sisp workshops forming part of the information systems management course (systems engineering, universidad nacional de colombia). results arising from the workshops have also been improved.
Participación de los hombres en la Planificación Familiar
Prendes Labrada,Marianela de la C; Aparicio Arias,Zuraika; Guibert Reyes,Wilfredo; Lescay Megret,Orlando;
Revista Cubana de Medicina General Integral , 2001,
Abstract: a descriptive study was conducted aimed at identifying the causes of the low participation of men in the family planning (fp) consultation. the sample was composed of 300 men, 100 that accompanied their partners to the consultation and 200 that were randomly selected. a questionnaire with 16 questions was applied and it was found that only 3.6 % participated in the family planning consultation and that 63.6 % went just as companions. the condom was the most used contraceptive method according to the sample (47.3 %). its use prevailed among young men aged 20-24 (59.5 %). 48.6 % men had fair knowledge about family planning, whereas 1 out of 4 had poor knowledge. it was observed a defficient communication between partners (64 %). it was concluded that men do not go to the consultation frequently due to their little motivation, to the lack of knowledge on aspects related to family planning and to a defficient communication with their partners
Participación de los hombres en la Planificación Familiar
Marianela de la C Prendes Labrada,Zuraika Aparicio Arias,Wilfredo Guibert Reyes,Orlando Lescay Megret
Revista Cubana de Medicina General Integral , 2001,
Abstract: Se realizó un estudio descriptivo con el objetivo de identificar las causas de la baja participación de los hombres en la consulta de planificación familiar (PF). La muestra fue de 300 hombres, 100 parejas de mujeres asistentes a la consulta de PF y 200 seleccionados al azar. Se les aplicó un cuestionario conformado por 16 preguntas, y se encontró que solo 3,6 % participó en la consulta de planificación familiar, el 63,6 % fue con el objetivo de acompa ar a sus parejas. El condón fue el método anticonceptivo más utilizado por la muestra (47,3 %), predominando su uso entre jóvenes de 20 a 24 a os (59,5 %). El 48,6 % tiene conocimiento regular sobre PF y en 1 de cada 4 hombres el nivel de conocimientos es malo, y predominó la comunicación deficiente de parejas (64 %). Se concluye que los hombres acuden poco a la consulta de PF por tener pobre motivación para ello, desconocimiento sobre aspectos relacionados con la PF y comunicación deficiente con su pareja. A descriptive study was conducted aimed at identifying the causes of the low participation of men in the family planning (FP) consultation. The sample was composed of 300 men, 100 that accompanied their partners to the consultation and 200 that were randomly selected. A questionnaire with 16 questions was applied and it was found that only 3.6 % participated in the family planning consultation and that 63.6 % went just as companions. The condom was the most used contraceptive method according to the sample (47.3 %). Its use prevailed among young men aged 20-24 (59.5 %). 48.6 % men had fair knowledge about family planning, whereas 1 out of 4 had poor knowledge. It was observed a defficient communication between partners (64 %). It was concluded that men do not go to the consultation frequently due to their little motivation, to the lack of knowledge on aspects related to family planning and to a defficient communication with their partners
Software para la ense anza y entrenamiento en la construcción de matrices para planeación estratégica de sistemas de información A software tool for teaching and training how to build and use matrixes in strategic information systems planning
Arias Sanabria Javier Andrés,Cortés Aldana Félix Antonio,Córtes Aldana Jaime Orlando
Ingeniería e Investigación , 2010,
Abstract: La planeación estratégica de sistemas de información (PESI) es el proceso por medio del cual una organización determina el portafolio de aplicaciones de computador para ayudar a lograr sus objetivos de negocios. El BSP/SA (Business System Planning for Strategical Alignment) de IBM es una importante técnica para desarrollar un plan estratégico del recurso de información de toda una empresa. El BSP/SA ha sido descrito en términos de fases y tareas específicas. Las tareas son usualmente realizadas a mano y requieren de experiencia. El objetivo principal de este trabajo es el de dar a conocer una herramienta computacional que automatiza dos de las tareas más importantes de la metodología BSP/SA: la matriz procesos - organización (MPO) y la matriz procesos – clases de datos (MPC). Para desarrollar el software se hizo énfasis en las etapas de análisis, dise o e implementación del ciclo de vida de desarrollo de sistemas. Durante la etapa de análisis fue importante la revisión de la literatura y entrevistas semiestructuradas con expertos en PESI. Una contribución especial del presente trabajo es el dise o e implementación de reportes estadísticos asociados a cada matriz. La automatización de esta tarea ha facilitado a los estudiantes el proceso de análisis de la MPO y la MPC durante el desarrollo de los talleres de PESI para la asignatura de Gestión y Gerencia de Sistemas de Información (Ingeniería de Sistemas, Universidad Nacional de Colombia). También se han mejorado los resultados obtenidos en los talleres. Strategic information systems planning (SISP) allows an organisation to determine a portfolio of computer-based applications to help it achieve its business objectives. IBM’s business system planning for strategic alignment (BSP/SA) is an important technique for developing a strategic plan for an entire company’s information resource. BSP/SA has been described in terms of stages and the specific tasks within them. Tasks are usually done manually and require some experience. This work was thus aimed at presenting a computer-based application that automates two of the most important tasks in BSP/SA methodology: process-organisation matrix (POM) and processes-data classes–matrix (PDM). Special emphasis was placed on analysing, designing and implementing systems development life-cycle for developing the software. An important part of the analysis consisted of conducting a literature review and the semi-structured interviews with some experts in SISP. A special contribution of the present work is the design and implementation of statistical reports associated
Page 1 /6829
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.