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128.709  Articles
1 of 12.872 pages  |  10  records  |  more records»
Purpose: SPC can be defined as the problem solving process incorporating many separate decisions including selection of the control chart based on the verification of the data presumptions. There is no professional statistical software which enables to ma... see more

Introduction: The great demand of the markets has led to situations in which the production systems are characterized by the production of several batches but of small size. This new paradigm requires that adequate techniques be developed, both in terms o... see more

The effective simultaneous monitoring of the many quality characteristics of a production process often depends on statistical tools that have become more and more specific. The goal of this paper is to investigate, via an industrial application, whether ... see more

This study aims to determine the types of damage, the factors that cause damage, and whether product quality control at PT. Ever Age Valves Metals Lamongan Branch is still within the limits of control or not. Data collection techniques was done by direct ... see more

In this study, it was aimed to evaluate of the quality of the sowing process applied by 10 different producers in their fields in Tokat / Kazova, in the cultivation of grain corn, by Statistical Process Control. In determining of the quality of the sowing... see more

This study aims to know how the application of statistical process control and Six Sigma in order to control the product process tiles. Namely primary data collection methods (surveys and observations) and secondary (internal and external). The data used ... see more

Time-series statistical pattern recognition is of prime importance in statistics, especially in quality control techniques for manufacturing processes. A frequent problem in this application is the complexity when trying to determine the behaviour (patter... see more

En este trabajo se presenta un enfoque estadístico para la evaluación de la caída de tensión en un sistema eléctrico de baja tensión, basado en la aplicación de dos herramientas básicas del control estadístico de procesos conocidas como cartas de control ... see more

Epidemiología de las lesiones endometriales en mujeres obesas mayores de 50 años / Epidemiology of the endometrial lesions in obese women older than 50 years oldEpidemiología de las lesiones endometriales en mujeres obesas mayores de 50 años / Epidemiology of the endometrial lesions in obese women older than 50 years oldSe realizó una investigación retrospectiva y analítica, con el objetivo de identificar los factores de riesgo asociados a las lesiones endometriales en las mujeres obesas mayores de 50 años en el municipio Pinar del Río. El universo de estudio estuvo constituido por la totalidad de las mujeres residentes en el área de salud Hermanos Cruz. Se seleccionó un grupo de estudio conformado por las mujeres obesas mayores de 50 años y un grupo de control conformado por las mujeres mayores de 50 años no obesas. Para obtener los datos, se utilizó una encuesta-formulario, donde se incluyeron variables generales de la mujer, antecedentes personales y familiares e historia ginecobstétrica, la cual fue aplicada a ambos grupos, con previo consentimiento. Se realizó un estudio ultrasonográfico a las mujeres incluidas en la investigación y uno histológico del endometrio cuando el examen ultrasonográfico resultó anormal (mayor de 4 mm en posmenopáusicas y de 14 mm en premenopáusicas.). Se confeccionó una base de datos con las variables estudiadas. Los resultados obtenidos se agruparon en cuadros (simples y de contingencia). Para su procesamiento estadístico se utilizaron la frecuencia absoluta y porcentual, el estadígrafo Ji cuadrado, pruebas de probabilidad de Fisher, los odds ratio (crudo y ponderado) y Z. La obesidad estuvo asociada con mayor probabilidad de tener un resultado ultrasonográfico anormal de la medida del grosor endometrial y de lesiones premalignas y cáncer endometrial, principalmente cuando existieron antecedentes familiares de cáncer de mama o colon y antecedentes personales de menarquía precoz, paridad y sangrado uterino anormal. Palabras clave: adenocarcinoma, neoplasias, epidemiología,hiperplasia endometrial,biopsia. ABSTRACT A retrospective and analytic research was carried out with the purpose of identifying risk factors associated with endometrial lesions in obese women older than 50 years old in Pinar del Rio municipality. The universe was comprised of the total of women living at "Hermanos Cruz" health sector. A group of obese women older than 50 years old and a control group of non-obese women older than 50 years old were chosen. To collect data, a survey-form was used; including general variables of women, personal, familial, gynecological and obstetric records. The survey was applied for both groups having a previous consent. A sonographic study was conducted to women participating in the research and performing an endometrial-histological examination when the Sonography showed abnormalities (greater 4mm in postmenopausal and 14mm in premenopausal women). A database using the variables studied was created; and the results were grouped in charts (simple and of contingency). In the statistical process absolute frequency and percentage, chi square, Fisher's probability test, odds ratio (raw and adjusted), and Z test were used. Obesity was associated with a major probability of having an abnormal sonographic result of the endometrial thickness, premalignant lesions and endometrial cancer; mainly when familial history of breast or colon cancers existed as well as personal records of early menarche, parity and abnormal uterine bleeding. Key words: Adenocarcinoma, Endometrial neoplasm, epidemiology, Endometrial hyperplasia, biopsy.

ABSTRACT A retrospective and analytic research was carried out with the purpose of identifying risk factors associated with endometrial lesions in obese women older than 50 years old in Pinar del Rio municipality. The universe was comprised of the total... see more

1 of 12.872 pages  |  10  records  |  more records»