منابع مشابه
Generalized admittance matrix models of OTRAs and COAs
This paper proposes new admittance matrix models to approach the behavior of fully-differential Operational Transresistance Amplifiers (OTRAs) and Current Operational Amplifiers (COAs). The infinity-variables method is used in order to derive the new generalized models. As a consequence, standard nodal analysis being improved to compute fully-symbolic small-signal characteristics of fullydiffer...
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Material and methods. A questionnaire was completed simultaneously by professionals responsible for spirometry in all of the primary health care centers in Navarre. Data were collected on availability, model of spirometer, frequency of use, calibration, methods, personnel responsible for testing, and training of personnel. Then, baseline spirometry without a bronchodilator test was performed in...
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Results. There were 6,218 patients and 513 SSI (8.25%). The infection rate was 2.27% for clean surgery, 9.17% for clean-contaminated surgery, 11.40% for contaminated surgery, and 19.14% for dirty surgery; 4% for ASA I, 8.23% for ASA II, 13.54% for ASA III, 19.55% for ASA IV, and 33.33% for ASA V; 6.97% for length of procedure = 75th percentile, and 23.01% for > 75th percentile; 3.95% for NNIS 0...
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A finales del siglo XX, una de las más importantes revoluciones tecnológicas se relaciona con la computadora personal, que ha ido de la mano con otras innovaciones, como lo son los teléfonos celulares y los asistentes digitales personales (PDA) o computadoras de bolsillo, entre otras. Los teléfonos celulares y los PDA han tenido un auge de uso muy importante en todo el mundo, debido a su movili...
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Resumen original adicciones vol. xx, no x · 2017 The relationship between consumption of alcohol and other drugs and problematic Internet use among adolescents Relación entre el consumo de alcohol y otras drogas y el uso problemático de Internet en adolescentes Sandra Golpe*; Patricia Gómez*; Teresa Braña*; Jesús Varela*; Antonio Rial*. *Universidad de Santiago de Compostela, España. Received: ...
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ژورنال
عنوان ژورنال: Terra Brasilis
سال: 2020
ISSN: 1519-1265,2316-7793
DOI: 10.4000/terrabrasilis.6638