ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Education
Social Sciences
Languages
Literature
Technology
Economy
Research
Public health
Pure sciences
Architecture and Urbanism
all records (73)

Languages
English
Spanish
Portuguese
French
German

Countries
Indonesia
USA
Brazil
South Africa
Ukraine
Canada
Germany
Turkey, Turkish Republic
Pakistan
Switzerland
all records (80)

Years
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
all records (24)

Filter  
 
435.153  Articles
1 of 43.516 pages  |  10  records  |  more records»
In the article influence of nonlinear frequency modulation on providing of connection with high-speed unmanned aerial vehicles (UAV) at the use of ortogonal frequency discrete modulation (OFDM) is analyzed. For the detailed research of spectral distortion... see more

The Internet of Things (IoTs) will change the requirements for wireless connectivity significantly, mainly with regard to service coverage, data rate, and energy efficiency. Therefore, to improve robustness and reliability, WiFi-enabled IoT devices have b... see more

An important aspect of the emerging user care discourse is the apologies offered by companies. Previous research has focused on public apologies; however, there has been little focus on the users’ comments in response to apologies. This case study aimed t... see more

Salud funcional y enfermedades generales asociadas en ancianos / Functional health and general diseases associated with the agedSalud funcional y enfermedades generales asociadas en ancianos / Functional health and general diseases associated with the agedSe realizó un estudio observacional, descriptivo y transversal, con el objetivo de caracterizar la salud funcional de los ancianos residentes en el área del Consultorio 10 del Policlínico "Pedro Borrás Astorga" de la ciudad dePinar del Río, así como su relación con las enfermedades generales seleccionadas en los meses de enero a julio de 2008. Se aplicó una encuesta voluntaria y anónima a 180 ancianos, que recogió las variables sexo, enfermedades generales asociadas: hipertensión arterial, diabetes mellitus, cardiopatía isquémica y osteoartritis. Para caracterizar su salud funcional se aplicaron los índices de Katzde independencia en las actividades básicas de la vida diaria y de Lawton-Brody de independencia en las actividades instrumentadas de la vida diaria. Existió un predominio de ancianos del sexo femenino. No hubo asociación entre el sexo y la clasificación en dependencia e independencia. Las enfermedades generales estudiadas en la población general de ancianos mostraron una elevada prevalencia de la hipertensión arterial, sobre todo en los discapacitados. La prevalencia de osteoartritis prácticamente se cuadruplicó en ancianos dependientes. En el análisis de todas las enfermedades en los dos grupos de ancianos teniendo el sexo como variable de confusión, se encontró que sólo en la osteoartritis actuaba como el tipo de variable analizada. Se recomendó incrementar las acciones preventivas, educativas y de control en busca de cambios favorables en hábitos y estilos de vida en los ancianos estudiados, dada la alta frecuencia de hipertensión arterial. Palabras clave: ANCIANO, DIABETES MELLITUS, ESTILO DE VIDA, HIPERTENSIÓN, OSTEOARTRITIS. ABSTRACT An observation, descriptive and cross-sectional research was conducted from January to July 2008 aimed at characterizing functional health and its association with certain general diseases of the aged living in the area of No-10 Medical Office belonging to "Pedro Borras Astorga" teaching outpatient clinic in Pinar del Rio city. A volunteer and anonymous survey was applied to 108 aged, collecting the variable of sex and associated general diseases: hypertension, diabetes mellitus, ischemic heart disease and osteoarthritis. To characterize functional health the rates of Katz and Lawton-Brody concerning the independence of instrumented everyday activities were used. Female sex prevailed. Disabled and able aged that presented Hypertension and osteoarthritis exceeded four times in disabled. Increasing preventive, educative and control measures to achieve favorable lifestyle changes in patients that participated in the study, due to the high frequency of hypertension. Key words:AGED, DIABETES MELLITUS, LIFE STYLE, HYPERTENSION, OSTEOARTHRITIS.

ABSTRACT An observation, descriptive and cross-sectional research was conducted from January to July 2008 aimed at characterizing functional health and its association with certain general diseases of the aged living in the area of No-10 Medical Office... see more

Evaluación de factores de riesgo en accidentes oculares graves infantiles / Assessment of the risk factors for severe ocular accidents in childrenEvaluación de factores de riesgo en accidentes oculares graves infantiles / Assessment of the risk factors for severe ocular accidents in childrenObjetivo: evaluar factores de riesgo en accidentes oculares graves infantiles. Métodos: se realizó una investigación aplicada, epidemiológica, descriptiva, longitudinal y prospectiva sobre accidentes oculares graves en el Servicio de Oftalmología del Hospital Pediátrico Provincial de Pinar del Río (2006-2007). El universo y muestra estuvo constituido por dos grupos de niños de 1- 20 años, ambos sexos y todas las etnias. Primer Grupo: Niños con accidente ocular grave, Segundo Grupo: Niños sin accidente ocular; determinándose una muestra total de 130 seleccionados mediante muestreo aleatorio simple. Fueron utilizados métodos empíricos y teóricos de investigación científica. Resultados: el trauma ocular representó el 87,8% de los ingresos de urgencia durante el período. Se encontró que el grupo etáreo de 9-12 años (40%), y sexo masculino (89,2%) fueron los más afectados. Un 76,9% de los accidentados residía en zona rural. El 96,9% se encontraba fuera de la casa y sin compañía de adultos en el momento del trauma. Predominaron las familias con conocimientos y actitudes evaluados de regulares en relación a los accidentes oculares con un 57,7 % y 60,8% respectivamente. Conclusiones: se constató elevada frecuencia de traumas oculares infantiles graves en Pinar del Río, precisando sus factores causales de riesgo y dificultades en la prevención de los mismos.Palabras clave: ACCIDENTES/clasificación, TRAUMATISMOS OCULARES, NIÑO, FACTORES DE RIESGO.ABSTRACTObjective: to assess the risk factors for severe ocular accidents in children. Methods: an applied, epidemiological, descriptive, longitudinal and prospective research of the severe ocular accidents was conducted in the Ophthalmologic Service at “Pepe Portilla” Provincial Children Hospital, Pinar del Rio. The target group and the sample were comprised of two groups of children from 1 to 16 years old of both sexes and all ethnics. First group: children and adolescents suffering from severe ocular accidents. Second group: children and adolescents without ocular accidents; a total sample of 130 patients were chosen by means of a simple sampling at random. Empiric and theoretical scientific research methods were used. Results: the ocular trauma represented 87, 8% of the admissions in the emergency service during the period. The group of ages between 9-12 and male sex (89, 2%) were the most affected; 76, 9% lived in rural zones and 96, 9% of the accidents occurred out of the house without adult company; knowledge and attitudes towards ocular accidents were evaluated as fair in families (57,7% and 60,8% respectively). Conclusions: a high frequency of severe ocular traumas in children was verified in Pinar del Rio, specifying causal risk factors and difficulties to prevent these accidents.Key words: ACCIDENTS/classification, EYE INJURIES, CHILD, RISK FACTORS.

Métodos: se realizó una investigación aplicada, epidemiológica, descriptiva, longitudinal y prospectiva sobre accidentes oculares graves en el Servicio de Oftalmología del Hospital Pediátrico Provincial de Pinar del Río (2006-2007). El universo y muestra ... see more

Abstract: When Pharos Dictionaries was established in 1996, its first order of business was to develop a comprehensive Afrikaans–English/English–Afrikaans dictionary that could succeed the standard-bearing but ageing TW (Tweetalige Woordeboek/Bilingual Di... see more

Abstract: When Pharos Dictionaries was established in 1996, its first order of business was to develop a comprehensive Afrikaans–English/English–Afrikaans dictionary that could succeed the standard-bearing but ageing TW (Tweetalige Woordeboek/Bilingual Di... see more

The use of medicines in unlicensed and off-label manner for adults is less common with limited research compared to children. This research was carried out to characterise unlicensed and off-label use of medicines in adult intensive care patients of a hos... see more

In this paper, the basic principle and characteristics of a phase-locked loop (PLL) in a single phase grid-connected system are analyzed, and this paper introduces one type virtual orthogonal voltage vector method based on a third order generalized integr... see more

1 of 43.516 pages  |  10  records  |  more records»