319 research outputs found

    CARACTERÍSTICAS CLÍNICO EPIDEMIOLÓGICAS DE LA ENFERMEDAD DE PARKINSON EN UN HOSPITAL NACIONAL DE LA SIERRA PERUANA: CLINICAL EPIDEMIOLOGICAL CHARACTERISTICS OF PARKINSON'S DISEASE IN A NATIONAL HOSPITAL OF THE PERUVIAN HIGHLANDS

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    Objective: To determine the main epidemiological and clinical characteristics of Parkinson's disease at the National Hospital "Ramiro Prialé Priale" in Huancayo. Methods: Observational, descriptive retrospective study of a serie of cases. 84 patients were studied between 2015 and 2017, treated in the outpatient clinic or hospitalization of Neurology and Internal Medicine, for which their medical records were reviewed, the sampling was non-probabilistic of the census type selected by the investigator's judgment. Results: The average age was 72.93 years, the male gender prevailed (58.3%), the degree of university education (50%) and the origin of Huancayo (77.4%). Decompensated arterial hypertension was the reason for hospitalization (19.1%), disease time ranged between 1-7 years (57.1%) and tremor at rest and bradykinesia was the most frequent motor symptom (23.8%) In non-motor symptoms, 38.1% had sleep disorders, 21.4% family history of Parkinson's disease and the most associated comorbidities were: depression (48.8%) and insomnia (41.7%). Conclusion: Parkinson's disease is a frequent pathology in older adults and males; The predominant motor symptom is resting tremor and bradykinesia, and the associated neuropsychiatric comorbidities are depression and insomnia.Objetivo: Determinar las principales características epidemiológicas y clínicas de la enfermedad de Parkinson en el Hospital Nacional “Ramiro Prialé Priale” de Huancayo. Métodos: Estudio observacional, descriptivo tipo retrospectivo de una serie de casos. Se estudió 84 pacientes entre los años 2015 y 2017, atendidos en la consulta externa u hospitalización de Neurología y Medicina interna, para ello se revisó sus historias clínicas, el muestreo fue no probabilístico de tipo censal seleccionados por juicio del investigador. Resultados: El promedio de edad fue 72,93 años, predominó el género masculino (58,3%), el grado de instrucción universitario (50%) y la procedencia de Huancayo (77,4%). La hipertensión arterial descompensada fue el motivo de hospitalización (19,1%), el tiempo de enfermedad tuvo un rango de 1-7 años (57,1%) y el temblor de reposo y bradicinesia fue el síntoma motor más frecuente (23,8%). En los síntomas no motores, 38,1% tuvieron alteraciones del sueño, 21,4% antecedentes familiares de enfermedad de Parkinson y las comorbilidades más asociadas fueron: depresión (48,8%) e insomnio (41,7%). Conclusión: La enfermedad de Parkinson es una patología frecuente en adultos mayores y en el sexo masculino; el síntoma motor que predomina es el temblor de reposo y bradicinesia, y las comorbilidades neuropsiquiátricas asociadas son la depresión e insomnio

    Body image dissatisfaction and low self-esteem due to physical appeareance in students of the faculty of medicine at the university of los andes (mérida, venezuela)

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    The purpose of this investigation was to evaluate body image dissatisfaction in relation to low self-esteem due to physical appearance in students of the Faculty of Medicine at the University of Los Andes in Mérida, Venezuela.  It was a non-experimental and correlational study.  The sample included 189 students (27% male and 73% female) with an average age of 19.58 ± 1.57 (men: 19.81 years of age ± 1.74 and women: 20.24 years of age ± 1.76).  Participants were intentionally selected from first-year courses of the Medicine, Nursing and Nutrition programs.  The Body Shape Questionnaire (BSQ) (Cooper and Taylor, 1987) was the instrument used to measure body image dissatisfaction and Graffar’s modified method (Méndez and De Méndez, 1994) was applied to determine the participants’ socioeconomic status.  A descriptive analysis (frequency, percentages, mean) and an inferential analysis (one-way ANOVA) were applied to the data using SPSS (Statistical Package for Social Sciences) version 9.0.  One of the most important findings in this study was the determination of a statistically significant relationship between dissatisfaction and body image and between low self-esteem and gender χ2 (2, N= 189) = 9.686, p=0.008.  Using ANOVA also helped determine that differences in the mean for dissatisfaction and low self-esteem levels with body image and gender are statistically significant, F= 11.236; p=0.008, F=10.23; p=0.002, respectively.  Conclusions: results obtained suggest a relationship between dissatisfaction and low self-esteem due to physical appearance. Consequently, subjects reject their body image because of a distorted or undistorted perception of their physical appearance, which can possibly affect self-esteem.  Moreover, it is observed that the students’ psychological health is more related to their satisfaction with their body-image than to the way their body image is perceived. Consequently, this group of participants must be analyzed regarding their self-esteem due to body image, as an expression in the institutional environment.  It is also important to emphasize that gender may be a risk factor concerning eating disorders.  We believe the foregoing because women showed higher dissatisfaction levels because of their physical appearance being conditioned by a higher dissatisfaction with their perceived body image, which is characterized by an overestimation of the physical dimension of their body image

    Embedding quasi-static time series within a genetic algorithm for stochastic optimization: the case of reactive power compensation on distribution systems

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    This paper presents a methodology for the optimal placement and sizing of reactive power compensation devices in a distribution system (DS) with distributed generation. Quasi-static time series is embedded in an optimization method based on a genetic algorithm to adequately represent the uncertainty introduced by solar photovoltaic generation and electricity demand and its effect on DS operation. From the analysis of a typical DS, the reactive power compensation rating power results in an increment of 24.9% when compared to the classical genetic algorithm model. However, the incorporation of quasi-static time series analysis entails an increase of 26.8% on the computational time required

    ASPECTOS DEMOGRÁFICOS, NIVELES EDUCATIVOS Y CARACTERÍSTICAS DE LAS VIVIENDAS DE LOS ADULTOS MAYORES DE 60 AÑOS Y MÁS DEL ÁREA URBANA DEL DISTRITO DE SANTIAGO DE VERAGUAS (SANTIAGO CABECERA, CANTO DEL LLANO Y SAN MARTÍN DE PORRES)

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    For society, it is becoming more and more important that its members reach a   healthy old age, for this, it is required   the disease prevention as indispensable mechanism to ensure that goal and a greater knowledge of the old age phenomenon. A descriptive exploratory study was carried out between august and october2021 with the aim of analyzing the social conditions and the quality of life of the population of adults of 60 and older than 60 years from the urban area of the district of Santiago, province of Veraguas (Santiago cabecera, Canto del Llano and San Martín de Porres). A random sample of 379 adults was drawn from the target population. The sample was stratified by sex and village. A questionnaire was designed by using close and open questions aim to obtain the necessary information. It turns out that in each village under study between 53% and 57% of the adults surveyed were women and between 47% and 43% men. About 65% of the surveyed are between 60 and 70 years old and about 26% are between 71 and 80 years old.  Globally, between 15% and 25% of the adults interviewed had obtained a university degree while between 16% and 20% just obtained a high school diploma. As can be observed, more than 90% of the adult houses had basic services such as availability of drinking water, electricity, and garbage collection. From the analysis it follows that more than a half of the population under study had adequate conditions in their quality of life, considering related factors such as the level of education and housing conditions.Para la sociedad, cada vez es más importante que sus miembros alcancen una edad avanzada de forma saludable, para ello se requiere la prevención de las enfermedades como mecanismo indispensable que garantice ese objetivo y un mayor conocimiento del fenómeno de la vejez. Se realizó un estudio exploratorio-descriptivo, en los meses de agosto-octubre del 2021 con el objetivo de analizar las condiciones sociales y de calidad de vida de la población de adultos mayores de 60 años y más ubicados en el área urbana del distrito de Santiago de Veraguas (Santiago cabecera, Canto del Llano y San Martín de Porres). Se utilizó una muestra aleatoria de 379 adultos mayores, la cual fue estratificada por sexo y corregimiento[1]. Se diseño un cuestionario con preguntas abiertas y cerradas para obtener la información correspondiente. Resultó que, en cada uno de los corregimientos del área bajo estudio entre un 53% y un 57% de los adultos entrevistados son mujeres y entre 47% y 43% hombres. Alrededor de un 65% de los entrevistados tenían entre 60 y 70 años y más o menos un 26% tenía entre 71 y 80 años. A nivel global del área bajo estudio entre un 15% y un 25% de los adultos entrevistados lograron completar su educación universitaria; mientras que entre un 16% y 20% solo logró terminar su educación secundaria. Además, más del 90% de las viviendas disponen de los servicios básicos de dotación de agua potable, electricidad y recolección de la basura. Del análisis se desprendió que más de la mitad de la población en estudio tiene condiciones adecuadas en su calidad de vida en cuanto a los factores relacionados, tales como nivel educacional y características habitacionales.  

    Operating conditions of lead-acid batteries in the optimization of hybrid energy systems and microgrids

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    The promotion and deployment of storage technologies in autonomous and grid-connected systems plays a relevant part in the massive integration of renewable power sources required for the worldwide development of a sustainable society. In this regard, analyzing the behavior of electrochemical storage devices such as lead-acid batteries installed on hybrid energy systems and microgrids in terms of their lifetime and economic profitability is an important research topic. Since renewable generation is characterized by its random nature, lead-acid batteries typically work under stress conditions, which directly influence their lifetime in a negative way by increasing the net present cost. Due to the fast growing of renewable sources as a consequence of governmental policies and incentives, the number of manufacturers to be considered worldwide is becoming really high, so that optimization techniques such as genetic algorithms (GAs) are frequently used in order to consider the performance of a high number of manufacturers of wind turbines, photovoltaic panels and lead-acid batteries subject to the environmental conditions of the location under analysis to determine a cost-effective design. In this paper, GA method combined with weighted Ah ageing model is improved by including expert experiences by means of stress factors and the categorization of operating conditions, as a new contribution to earlier studies. The effectiveness of the proposed method is illustrated by analyzing a hybrid energy system to be installed in Zaragoza, Spain, resulting in a near-optimal design in a reduced computational time compared to the enumerative optimization method

    Análisis de ejecución múltiple de Funciones Serverless en AWS

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    Serverless Computing es una reciente arquitectura para Cloud Computing que presenta ventajas considerables para los usuarios. Sin embargo debido a recientemente aparición, muchas de sus limitaciones o desventajas no están totalmente resueltas. Numerosos desafíos presenta esta arquitectura, que son analizados y estudiados tanto por la academia como por las empresas proveedoras de Cloud. Las plataformas Serverless permiten ejecutar funciones individuales que pueden ser administradas y ejecutadas separadamente. A diferencia de las aplicaciones tradicionales de ejecución prolongada en plataformas dedicadas, virtualizadas o basadas en contenedores, las aplicaciones serverless están diseñadas para crear instancias cuando se les llama, ejecutar una sola función y cerrarse cuando finalizan. La ejecución eficiente y de alta performance es uno de los desafíos a resolver. Aunque las funciones se ejecutan sin estado y escalan bajo demanda, la ejecución múltiple de funciones requiere que varias dificultades sean resueltas, entre ellas la latencia que presentan antes de ser ejecutadas y que impactan en la eficiencia. En el presente trabajo se realiza una serie de pruebas y análisis de los resultados, que permiten emitir conclusiones sobre el impacto que causa la ejecución de múltiples funciones.Workshop: WPDP - Procesamiento Distribuido y ParaleloRed de Universidades con Carreras en Informátic

    Development of the (d,n) proton-transfer reaction in inverse kinematics for structure studies

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    Transfer reactions have provided exciting opportunities to study the structure of exotic nuclei and are often used to inform studies relating to nucleosynthesis and applications. In order to benefit from these reactions and their application to rare ion beams (RIBs) it is necessary to develop the tools and techniques to perform and analyze the data from reactions performed in inverse kinematics, that is with targets of light nuclei and heavier beams. We are continuing to expand the transfer reaction toolbox in preparation for the next generation of facilities, such as the Facility for Rare Ion Beams (FRIB), which is scheduled for completion in 2022. An important step in this process is to perform the (d,n) reaction in inverse kinematics, with analyses that include Q-value spectra and differential cross sections. In this way, proton-transfer reactions can be placed on the same level as the more commonly used neutron-transfer reactions, such as (d,p), (9Be,8Be), and (13C,12C). Here we present an overview of the techniques used in (d,p) and (d,n), and some recent data from (d,n) reactions in inverse kinematics using stable beams of 12C and 16O.Comment: 9 pages, 4 figures, presented at the XXXV Mazurian Lakes Conference on Physics, Piaski, Polan

    Nomenclature of the gadolinite supergroup

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    The newly defined gadolinite supergroup approved by the IMA CNMNC (vote 16-A) includes mineral species that have the general chemical formula A2MQ2T2O8\u20192 and belong to silicates, phosphates and arsenates. Each site is occupied by: A Ca, REE (Y and lanthanoids), actinoids, Pb, Mn2\ufe, Bi; M Fe, \u25a1 (vacancy), Mg, Mn, Zn, Cu, Al; Q B, Be, Li; T Si, P, As, B, Be, S; and\u2019 O, OH, F. The classification of the gadolinite supergroup is based on the occupancy of A, M, Q, T and\u2019 sites and application of the dominant-valency and dominant-constituent rules. The gadolinite supergroup is divided into two groups defined by prevailing charge occupancy at the T site Si4\ufe in gadolinite group and P5\ufe or As5\ufe in herderite group. The gadolinite group is divided into the gadolinite and datolite subgroups. The A site is dominantly occupied by divalent cations in the datolite subgroup and by trivalent cations in the gadolinite subgroup. Accordingly, the Q site is dominantly occupied by B3\ufe in the datolite subgroup and by Be2\ufe in the gadolinite subgroup. The herderite group is divided into two subgroups. The herderite subgroup is defined by the dominant divalent cation (usually Ca2\ufe) in the A site and Be2\ufe in the Q site, while the M site is vacant. The drugmanite subgroup is defined by the dominance of divalent cations (usually Pb2\ufe) in the A site, vacancy in the Q site and the occupation of the M site. Moreover, \u201cbakerite\u201d is discredited as mineral species because it does not meet the conditions of the dominant-constituent rule
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