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174.273  Articles
1 of 17.428 pages  |  10  records  |  more records»
The stationarity assumption of hydrological processes has long been compromised by human disturbances in river basins. The traditional hydrological extreme-value analysis method, i.e., “extreme value theory” which assumes stationarity of the t... see more

Raw materials used in cement manufacturing normally have varying chemical compositions and require regular analyses for plant control purposes. This is achieved by using several analytical instruments, such as XRF and ICP. The values obtained for t... see more

In the present study, experimental research was carried out to determine the effect of the processing tool wear on the mutual change in the average statistical amplitude parameters of acoustic emission signals. Acoustic emission signals were recorded when... see more

The object of the study is the process of product quality assurance at the stage of the initial design of the manufacturing process. The subject matter is informational technologies for assessing the factor influence of critical parameters of the process ... see more

Context. This paper presents a method for solving the problem of product’s quality assurance at the stage of the initialmanufacture process design in accordance with the process-analytical technology for the design of modern certified manufacturing –QbD. ... see more

Safe source of drinking water is always considered as an essential factor in water supply for cities and urban areas. As a part of this issue, drinking water quality is monitored via a useful scheme: developing drinking water quality index DWQI. DWQI is p... see more

Pervaporation is an alternative separation process using membrane which allows separations of organic mixtures and dehydrates organic solvents with low energy consumption. The purpose of this experiment is to analyze the influence of operating parameters ... see more

Optimisations of incubation time of the enzymatic coconut oil extraction using Carica papaya's latex have been done. These researches were performed based on completed randomised design with varying incubation time (12, 24, 36 and 48 hours) and 3 % inocul... see more

Características clínicas de la catarata senil en santa rita, Zulia, Venezuela, julio-noviembre de 2007 / Clinical-epidemiological characteristics of patients surgically treated by senile cataracts in Santa Rita, Zulia, Venezuela, July to November 2007Características clínicas de la catarata senil en santa rita, Zulia, Venezuela, julio-noviembre de 2007 / Clinical-epidemiological characteristics of patients surgically treated by senile cataracts in Santa Rita, Zulia, Venezuela, July to November 2007Se realizó un estudio observacional, descriptivo y transversal para conocer las características clínico-epidemiológicas en pacientes operados de catarata senil, en Santa Rita, Zulia, de julio a noviembre de 2007. El universo estuvo conformado por 203 pacientes (ojos), la selección de la muestra se realizó de forma aleatoria simple, y se estimaron 56 pacientes operados (ojos). Los datos se obtuvieron a través de la observación del paciente y examen oftalmológico y de las historias clínicas individuales. Se confeccionó una planilla para la recogida de la información. Se utilizaron los métodos de la estadística descriptiva y resumieron las variables en frecuencias absolutas y relativas porcentuales. Se encontró que había un predominio del grupo de edad entre 60 y 69 años y el sexo femenino. El 53,6 % de los pacientes son diabéticos, y el glaucoma ocupaba el segundo lugar con 39.3 %. La agudeza visual preoperatoria estaba fundamentalmente en el rango de 0,3-0,6 (58.9 %). La catarata afectó a ambos ojos por igual. Las complicaciones en general fueron infrecuentes (< 20 %), con variaciones en dependencia del tiempo: entre las inmediatas fueron el edema corneal y la hipertensión ocular secundaria; en las mediatas fueron la subluxación del LIO y a la queratopatía bullosa, mientras las tardías estuvieron representadas por la opacidad de la cápsula posterior. La mayoría de los pacientes evaluó de buena tanto la satisfacción con el servicio quirúrgico y con el seguimiento en la comunidad. Se recomienda generalizar estos resultados para contribuir a elevar la calidad de vida y una mayor satisfacción de la población venezolana afectada por la Catarata Senil. Palabras clave: Catarata/complicaciones, clínica general, epidemiología, cirugía.ABSTRACT An observational, descriptive and cross-sectional study was carried out to describe the clinical-epidemiological characteristics of patients surgically treated by senile cataracts in Santa Rita, Zulia. Venezuela. July to November 2007. The universe was comprised of 203 patients (eyes), and the simple random sample was estimated in 56 patients (eyes). Data were obtained from the observation of the patient, ophthalmologic examination and the individual clinical records. A form was printed to collect information. Descriptive statistical methods were used to represent variables in absolute and relative frequencies. The age bracket 60-69 and females prevailed; 53, 6 % of patients were diabetic, glaucoma occupied the 2nd place with 39.3%. Pre-operatory visual acuity was mainly in the rank of 0, 3-0,6 (58,9 %). Cataract affected both eyes in the same proportions. Post-operative complications were infrequent (< 20 %), varying on time of presentations, among the immediate ones were: the corneal edema and the secondary ocular hypertension; among the mediate were subluxation of IOL and bullosa keratopathy, whereas the late complication, posterior capsule opacity was the most observed. Most of the patients evaluated either the satisfaction with the surgical service, or the follow up in the community as good. These results should be generalized to contribute to the increase of the quality of life and a greater satisfaction of the Venezuelan population affected by Senile Cataracts. Key words: Cataract/complications, general clinics, epidemiology, surgery.

ABSTRACT An observational, descriptive and cross-sectional study was carried out to describe the clinical-epidemiological characteristics of patients surgically treated by senile cataracts in Santa Rita, Zulia. Venezuela. July to November 2007. The u... see more

1 of 17.428 pages  |  10  records  |  more records»