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99.454  Articles
1 of 9.946 pages  |  10  records  |  more records»
This paper presented a new algorithm for determining the distance of an object in front of a stereo camera placed on a helmet. By using a stereo camera with a Sum of Absolute Difference with a Sobel edge detector, our previous Grid-Edge-Depth map algorith... see more

Under disaster circumstances, people in the impacted areas need different levels of medical services provided by the temporary or existing medical relief shelters whose medical service capability should be equal to or greater than their needs. It is an im... see more

Intervención educativa sobre infecciones de transmisión sexual en adolescentes / Educative intervention about sexually transmitted infections in adolescentsIntervención educativa sobre infecciones de transmisión sexual en adolescentes / Educative intervention about sexually transmitted infections in adolescentsIntroducción: Las infecciones de transmisión sexual en general y de manera especial el VIH/SIDA en los adolescentes y jóvenes constituyen un serio problema de salud. Objetivo: modificar nivel de conocimiento sobre las infecciones de transmisión sexual. Método: se realizó una intervención educativa en adolescentes de un área escolar del policlínico Hermanos Cruz, durante el período junio a noviembre de 2008. Del universo constituido por 452 adolescentes dispensarizados, se tomó una muestra de 100 adolescentes por el método aleatorio simple a través de un sorteo. Se incluyeron edades comprendidas entre 11 y 19 años; se emplearon en el estudio las variables: el sexo, la edad, la escolaridad, la vía de adquisición de la información sobre ITS, conocimiento referido sobre ITS y el nivel de conocimiento comprobado. El procesamiento de la información incluyó cálculo de medidas descriptivas para las variables cualitativas como las frecuencias absolutas y relativas. Resultados: predominó el sexo femenino (54%) y el grupo de edad correspondiente a la adolescencia tardía (57%); la mayoría de los adolescentes cursaba o había concluido la enseñanza secundaria (39%); se constató que antes de aplicar la intervención educativa la mayoría de los adolescentes referían no tener conocimientos sobre ITS y sus formas de prevención (79%); la calidad del conocimiento comprobado sobre ITS en cuanto a síntomas y vías de adquisición antes de la intervención educativa no fue adecuada en el (60%) de adolescentes. Conclusiones: después de aplicada la misma, se produjo un cambio significativo de los adolescentes con conocimiento comprobado adecuado sobre las ITS (90%).Palabras clave: ENFERMEDADES DE TRANSMISIÓN SEXUAL, ADOLESCENTE.ABSTRACTIntroduction:Sexually Transmitted Infections (STI) in general; especially HIV/AIDS in adolescents and young population constitute a serious health problem. Objective: to modify the level of knowledge about Sexually Transmitted Infections. Method: an educative intervention was conducted with adolescents in a school area at "Hermanos Cruz" Outpatient Clinic during June to November 2008. The target group was comprised of 452 adolescents, and a sample of 100 adolescents was taken at random through a simple raffle. Including ages from 11 to 19 and the variables of sex, age, educational level and ways of obtaining information about STI, knowledge about STI and the confirmed knowledge they had about the topic. The process of information included the calculation of descriptive measures for the qualitative variables as for absolute and relative frequencies. Results: female sex prevailed (54%) and the group of ages belonging to the late adolescence (57%); the majority of the adolescents were enrolled or had concluded the secondary studies (39%); it was verified that before applying the educative intervention the majority of the adolescents referred not to have knowledge about STI and the ways of prevention (79%); the quality of knowledge (verified) about STI regarding symptoms and ways of infection before the educative intervention was not correct in 60% of the adolescents. Conclusions: after the application of the strategy a significant change of attitude and knowledge acquisition of the adolescents about STI was observed.Key words: SEXUALLY TRANSMITTED DISEASES, ADOLESCENT.

Objetivo: modificar nivel de conocimiento sobre las infecciones de transmisión sexual. Método: se realizó una intervención educativa en adolescentes de un área escolar del policlínico Hermanos Cruz, durante el período junio a noviembre de 2008. Del univer... see more

Histopatología de la Hepatitis Viral Crónica C, Pinar del Río, enero 2002-julio 2008 / Histopathology of Chronic Viral Hepatitis-C, Pinar del Rio. January 2002- July 2008Histopatología de la Hepatitis Viral Crónica C, Pinar del Río, enero 2002-julio 2008 / Histopathology of Chronic Viral Hepatitis-C, Pinar del Rio. January 2002- July 2008A pesar de ser la hepatitis por virus C (HCVC) un problema de salud en el mundo y ser la causa más frecuente de hepatitis crónica, cirrosis hepática y carcinoma hepatocelular no se dispone de un sistema de puntaje práctico para el diagnóstico histopatológico.Objetivos: Incrementar el desempeño de los patólogos en el diagnóstico de la HCVC en el Hospital "Abel Santamaría Cuadrado" desde enero 2002 hasta julio 2008.Diseño: Se realizó una innovación tecnológica con la confección de un libro de esquemas procesados electrónicamente y se estudiaron las biopsias con HCV mediante un diseño descriptivo y transversal. Sujetos y Método.Universo: 236 biopsias diagnosticadas como HCV. Muestra: 117 biopsias diagnosticadas como HCVC (el total en el período). Se determinó edad, sexo, tipo de lesión histológica y correspondencia diagnóstica entre el grado de lesión histológica y el estadio de fibrosis con la edad. Se usó la Estadística Descriptiva para resumir variables categóricas y cuantitativas continuas, cálculos de comprobación de frecuencias y/o asociaciones de variables X², OR al 95 % de certeza. Resultados. Se elaboró un sistema de dibujos histológicos representativos de la clasificación de las hepatitis virales crónicas. La HCVC fue más frecuente entre 35-54 años, sexo femenino, con actividad necroinflamatoria moderada que alcanzó el 60.6 %. La fibrosis severa se presentó preferentemente entre 35 y 44 años. Conclusión. Se comprobó que el sistema de dibujos confeccionados posibilita una mejor estandarización del diagnóstico en un colectivo y facilita el aprendizaje de la entidad. Palabras clave: hepatitis viral humana, fibrosis, aprendizaje.ABSTRACT Despite being hepatitis caused by C virus (HCV) a worldwide health problem and the most frequent cause of chronic hepatitis, liver cirrhosis and hepatocelular carcinoma, a practical score system to perform the histopathologic diagnosis does not exist. Objective: To increase the competence of pathologists in the diagnosis of HCV at "Abel Santamaria Cuadrado" University Hospital from January 2002 to July 2008. Design: A technological innovation was created writing a book with electronically- processed diagrams and the study of HCV-biopsies by means of a descriptive and cross-sectional design. Subjects and Method: Universe: 236 biopsies with the diagnosis of HCV. Sample: 117 biopsies having the diagnosis of Chronic- HCV (the total during the period). Age, sex, type of histological lesion; diagnostic correspondence, the degree of the lesion and stage of the fibrosis in respect of the age were considered. Descriptive Statistics was used to sum up the categorical and continuing quantitative variables and the verification of frequencies through calculation and/or association of variables X2, OR. Results: A system of representative histological draws for the classification of chronic viral hepatitis (Ishak, 1995) was created. Chronic-HCV was more frequent between ages 35-54, female sex, and moderate necro-inflammatory activityreached up to 60.6% between 35 and 44 years old. Conclusion: It was confirmed that the system of draws makes possible a better standardization of the diagnosis in teams and provides a more suitable learning of the disease.Key words: human viral hepatitis, fibrosis, learning.

ABSTRACT Despite being hepatitis caused by C virus (HCV) a worldwide health problem and the most frequent cause of chronic hepatitis, liver cirrhosis and hepatocelular carcinoma, a practical score system to perform the histopathologic diagnosis does n... see more

The subject of research in the article is a method for determining a complex quality indicator of qualimetry objects that have quality indicators with different units of measurement. The purpose of the work is proposing a method for determining a complex ... see more

In the road traffic space which is often encountered by passing traffic type of vehicle. To find out the traffic conditions that are needed to calculate vehicle traffic, such as using counting or recording CCTV video. This continues the long and long proc... see more

The problem of the coordinates determining of the radio emission source in the passive radio monitoring complexes is very relevant, but complex calculation procedure. There are many factors that negatively affect the accuracy of the method. The method pro... see more

During war activities, the evaluation of invisible areas and military armors in mountainous terrain is very important for assessment of operational-tactical situation in battlefield. This information can be used for prevention of an enemy sudden attack. I... see more

Context. The implementation of video analytics functions in video surveillance systems makes it possible to increase the efficiency of these systems. One of the functions of these intelligent video surveillance systems is to detect dynamic objects in the ... see more

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