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98.031  Articles
1 of 9.804 pages  |  10  records  |  more records»
Approximation of functions of different classes have been considered by various researchers under different summability means. In the present paper, presumably a new theorem has been established under (E, 1)(N¯ pn) -product summability mean of conjugate F... see more

In this paper, we answer the question: for 2 (0; 1), what are thegreatest value p = p() and least value q = q(), such that the double inequalityLp(a; b) A(a; b)H1??(a; b) Lq(a; b) holds for all a; b > 0? where Lp(a; b),A(a; b), and H(a; b) are the p... see more

Generalized logistic distributions are very versatile and give useful representations of many physical situations. Skew-symmetric densities recently received much attention in the literature. In this paper, we introduce a new class of skew-symmetric distr... see more

An approach to the assessment of probabilistic inference is described which quantifies the performance on the probability scale. From both information and Bayesian theory, the central tendency of an inference is proven to be the geometric mean of the prob... see more

The main objective of stock portfolio selection is to distribute capital to selected stocks to get the most profitable returns at a lower risk. The performance of a stock depends on a number of criteria based on the risk-return measures. Therefore, the se... see more

Among the variations of anxiety disorders, generalized anxiety disorder is considered to be one of the most problematic. In times of intense social transformation, the issue of mental health of the youth, in particular the prevalence of tendencies to gene... see more

Incremento de la detección de lesiones cervicales mediante inspección visual. Puerto Esperanza. 2008Incremento de la detección de lesiones cervicales mediante inspección visual. Puerto Esperanza. 2008Las pruebas visuales del cuello uterino mediante ácido acético al 4-5 % (IVA) y Lugol (IVSL) contribuyen a detectar lesiones. Este constituye el primer reporte de su uso en Cuba. Objetivo: demostrar el incremento de la detección de lesiones cervicales premalignas y malignas mediante el uso de pruebas visuales en la APS. Método: estudio de casos-controles en Puerto Esperanza, Viñales, 2008. Universo: Mujeres de 15-64 años con relaciones sexuales penetrantes. Muestra: Mujeres con pruebas visuales y citología alterada (n1= 18 casos) o no (n2= 178 controles). En Patología de Cuello se les practicó colposcopia y biopsia dirigida o por conización con asa diatérmica. Se calcularon frecuencias absolutas y relativas porcentuales y la probabilidad de detectar lesiones por las pruebas aisladas o en conjunto, además de las pruebas de rendimiento diagnóstico. Resultados: IVA e IVSL resultaron positivas en 92.9% y 79.6%, respectivamente. La probabilidad conjunta de tener lesiones fue 0.7395. Con citología alterada el 88.9 % tenía IVA+ y 77,9 % tuvo IVSL+. La colposcopia resultó positiva en el 70.9 % y la probabilidad de tener una lesión mediante pruebas visuales y la colposcopia fue 0.516. De las 136 mujeres biopsiadas resultaron útiles el 99.3%, de las cuales casi el 50 % tuvo lesiones premalignas/malignas. Las pruebas de rendimiento fueron superiores para la IVA y la IVSL que para la citología. No se detectó cáncer invasor, pero sí carcinomas in situ. Conclusión: las pruebas visuales aumentaron la cantidad de diagnósticos en 4 veces y debe generalizarse su uso.DeCS: ABSTRACTVisual examination of cervix using acetic acid up to 4-5% (VIA) and Lugol's solution (VILI) contribute to detect lesions. This constitutes the first report of their use in Cuba. Objective: to demonstrate the detection increase of pre-malignant and malignant cervical lesions by means of visual examination in Primary Health Care. Method: control-case studies in Puerto Esperanza, Viñales municipality in 2008. Target group: women from 15 to 64 years old who practice penetrating sexual relations. Sample: women who underwent visual examinations and altered cytology (n1= 18 cases) or not (n2= 178 controls). In Cervix Pathology Office, colposcopies either by directed biopsy or conization with diathermal ansa were practiced; calculating absolute and relative percentage frequencies and the probability to detect lesions by isolated tests or in set, together with the tests of diagnostic performance. Results: VIA and VILI were positive in 92.9% and 79.6%, respectively. The joint probability of presenting lesions was 0. 7395. Those showing altered cytology (88.9%) had positive VIA and 77, 9% positive VILI. Colposcopy resulted positive in 70.9% and the probability of having a lesion, proved by visual examination, simultaneously with colposcopy was 0.516. Biopsies performed to 136 women were useful (99.3%), out of them, almost 50% presented pre-malignant and malignant lesions. Yield tests were superior to VIA and VILI than to cytology. Non-invasive cancer was detected; however in situ carcinoma was. Conclusion: visual examination increased the number of diagnosis 4 times, thus its use must be generalized.DeCS: PRECANCEROUS CONDITIONS, CERVIX UTERI, CYTODIAGNOSIS, UTERINE CERVICAL NEOPLASMS, COLPOSCOPY.

Objetivo: demostrar el incremento de la detección de lesiones cervicales premalignas y malignas mediante el uso de pruebas visuales en la APS. Método: estudio de casos-controles en Puerto Esperanza, Viñales, 2008. Universo: Mujeres de 15-64 años con relac... see more

In this work, we introduce new information inequalities on new generalized f-divergence in terms of well known Chi-square divergence. Further we obtain relations of other standard divergence as an application of new inequalities by using Logarithmic power... see more

The aim of this paper is to study r–generalized gamma functions of a particular form.Moreover, we define a new probability density function (p.d.f) involving these new generalized functions. Some basic functions associated with the p.d.f’s, such as moment... see more

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