Browsing by Fecha, starting with "1984"

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    On the Consequences of Overturning Turnover
    (Lippincott Williams & Wilkins, 1984) Barbara J. Lowery; Barbara S. Jacobsen
    The possibility that turnover may have a good side has been given increased attention in recent literature. The purpose of this investigation was to study whether turnover, defined as voluntary exit from employment, among newly hired nurses displaces poor performers. Routine performance ratings of 92 leavers and 184 stayers were compared for differences in overall ratings and for ratings on 10 job factor subscales. Results indicated that those who left employment were judged as significantly lower on overall ratings and on 7 of the 10 job factors on which overall ratings were based. The performance factor that best discriminated between leavers and stayers was the variable of interest and motivation, with those leaving being lower on the scale than the stayers. Further study of the performance-turnover relationship and study of other possible consequences of turnover are suggested.
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    Mensaje-Informe al Honorable Congreso Nacional
    (Área Vicerrectorado, 1984) Siles Zuazo, Hernán
    Mensaje-Informe del Sr. Presidente Constitucional Dr. Hernán Siles Zuazo donde hace una síntesis de sus logros y realizaciones durante el período de agosto de 1983 a agosto de 1984 al Honorable Congreso Nacional.
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    División Regional del Trabajo en la Industria Colombiana, 1945-1980 ¿Estabilidad o Cambio?
    (1984) Bert Helmsing
    Analiza la evolución de la división regional de la industria en el período 1945·1980. La industrialización en Colombia pasó por varias fases distintas: sustitución de importaciones sin y con empresa extranU¿jera; desarrollo en base de expo
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    La formación de pueblos nuevos: Un fenómeno de reordenamiento espacial boliviano
    (Facultad de Ciencias Económicas y Financieras, 1984) Birbuet Díaz, Gustavo; Machicado Saravia, Carlos A.
    I. Introducción y aspectos metodologicos. Aspectos metodologicos para el tratamiento del tema. II. Antecedentes de la organización y ocupación fisica del espacio Boliviano hacia 1950. III. La distribución territorial de la población en 1950. Subocupación física del aspecto y dispersión de la población. Los asentamientos dispersos. IV. Cambios de la distribución espacial de la población V. El proceso de urbanización en Bolivia. Variación de la primacía. Algunos aspectos socio-económicos sobre el proceso de urbanización. VI. El proceso de formación de pueblos nuevos. Consideraciones generales. Balance cuantitativo. Un intento de caracterización de pueblos. Equipamiento comunitario en los centros nucleados. Conclusiones. Bibliografía. Anexo.
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    Lecciones de la Asamblea Popular
    (Área Vicerrectorado, 1984) Lora, Guillermo
    Es cierto que en Bolivia el Stalinismo y también la ultraizquierda se agotan en múltiples maniobras que conducen al frente popular. No es equivocada la opinión de los portavoces más esclarecidos de la burguesía en sentido de que el PCB constituye una garantía de seguridad para la propiedad privada frente al empuje de los explotados. Las masas radicalizadas vuelven a plantear, retomando la experiencia de 1971, el camino de la asamblea popular y de la dictadura del proletariado. Es partiendo de esta evidencia que decimos que el trotskysmo ser , casi de una manera natural, la dirección de las masas en sus próximas luchas.
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    The use of microhaematocrit tubes for the rapid diagnosis of Chagas' disease and malaria
    (Oxford University Press, 1984) C. La Fuente; Eduardo Castañeda Saucedo; R. Urjel
    Journal Article The use of microhaematocrit tubes for the rapid diagnosis of Chagas' disease and malaria Get access C. La Fuente, C. La Fuente Centro Nacional de Enfermedades Tropicales (CENETROP), Casilla 2974, Santa Cruz, Bolivia Search for other works by this author on: Oxford Academic PubMed Google Scholar E. Saucedo, E. Saucedo Centro Nacional de Enfermedades Tropicales (CENETROP), Casilla 2974, Santa Cruz, Bolivia Search for other works by this author on: Oxford Academic PubMed Google Scholar R. Urjel R. Urjel Centro Nacional de Enfermedades Tropicales (CENETROP), Casilla 2974, Santa Cruz, Bolivia Search for other works by this author on: Oxford Academic PubMed Google Scholar Transactions of The Royal Society of Tropical Medicine and Hygiene, Volume 78, Issue 2, 1984, Pages 278–279, https://doi.org/10.1016/0035-9203(84)90299-2 Published: 01 January 1984 Article history Accepted: 18 August 1983 Published: 01 January 1984
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    The Dynamics of Catalytic Hypercycles — A Stochastic Simulation
    (Springer Nature, 1984) A. M. Rodríguez-Vargas; Peter Schuster
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    THE CRIOLLO CATTLE PROJECT OF SANTA CRUZ, BOLIVIA
    (Cambridge University Press, 1984) J.V. Wilkins; F. Rojas; Lina Marcela Escobar Martínez
    SUMMARY Plans to improve the milk production ability of the Criollo in Bolivia are outlined. The background problems are stated, and experiments to improve by crossbreeding are described. The Criollo improvement project which makes use of the purebred Criollo was planned in two stages. The first was the attempt to measure the performance of Criollo cows purchased from commercial herds, and milked without their calves. The second stage was the comparison of performance with the results of the crossbred trial. The intentions and plans to progeny test the Criollo bulls are summarized and the hopes of producing bulls for sale and use on temperate breeds of cow are described. The problems encountered in the project are stated, and the results are viewed in the context of work with Criollo in other countries.
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    A generalization of fubini's theorem for banach algebra-valued measures
    (LA Referencia, 1984) Diómedes Bárcenas; T. V. Panchapagesan
    Se demuestra una generalización del teorema deFubini para medidas vectoriales en algebras de Banach, en el caso en que la función a integrar toma también valores en el algebra.
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    The physical growth of urban children at high altitude
    (Wiley, 1984) Lawrence P. Greksa; Hilde Spielvogel; Luis Paredes‐Fernández; M Paz-Zamora; Esperanza Cáceres
    The physical growth of urban Aymara children residing in La Paz, Bolivia (3,600 m) is described and compared with Amerindian children residing at low and high altitudes and with low-altitude U.S. children. The sample consists of 227 males (10.6-19.7 yr) and 219 females (11.2-19.8 yr). The urban La Paz children were taller at all ages than rural high altitude Amerindian children but similar in stature to urban high altitude children from Peru. The variation in stature among the high altitude populations was considerable, amounting to average differences between the tallest and shortest samples of about 10 cm in males and 8 cm in females. In addition, stature in the two urban high altitude samples was similar to that of rural low-altitude Amerindians. This overlapping of the distributions of stature in high- and low-altitude populations could easily confound comparisons designed to determine the effects of hypoxia on physical growth. La Paz Aymara children had considerably smaller chest sizes relative to stature than high-altitude Quechua children. However, the available data indicates that relative chest sizes are similar in Aymara and Quechua adults, suggesting that the process by which large chests are achieved may differ between these Andean populations.
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    En torno a la educación popular
    (Facultad de Humanidades y Ciencias de la Educación, 1984) Getino, Elena
    Tesis que trata sobre la educación que detenta el poder, refleja el mismo estrangulamiento que el desarrollo social. El avance educacional se obstaculizado por las propia contradicciones del capitalismo producto de sus relaciones de apropiación del producto social: la educación.
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    Estudio literario de los libros de viajes medievales.
    (National University of Distance Education, 1984) Miguel Ángel Pérez Priego
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    Tráfico comercial a través de Charcas 1650 - 1700
    (Facultad de Humanidades y Ciencias de la Educación, 1984) Escobari Cardozo, Laura
    PRIMERA PARTE: A. Politica economica en America. B. Reglamento del comercio Indiano. C. Comercio en el Virreynato del Peru. D. Industria;agricultura y ganaderia en el Virreinato del Peru. E. Regimen financierom y monetario. SEGUNDA PARTE: A. Trafico comercial a traves de Charcas. B. Produccion de Cuzco. C. Charcas. E. Chuquiabu. F. La Plata (Chuquisaca). G. Trafico provincial del Rio de La Plata: Tucuman y Salta con Charcas. H. Fletes, arrieros y mercaderes.
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    Effect of Oxygen Tension on NMR Spin-Lattice Relaxation Rate of Blood in vivo
    (Lippincott Williams & Wilkins, 1984) Anil Kumar Tripathi; G. M. Bydder; Judith M. Hughes; J.M. Pennock; A. Goatcher; J. S. Orr; R. E. Steiner; R. H. Greenspan
    Tripathi A, Bydder GM, Hughes JMB, Pennock JM, Goatcher A, Orr JS, Steiner RE, Greenspan RH. Effect of oxygen tension on NMR spin-lattice relaxation rate of blood in vivo. Invest Radiol 1984;19:174-178. Spin-lattice relaxation rate (1/T1) was measured in the left (LV) and right (RV) ventricular cavities in four conscious normal humans and four anesthetized greyhound dogs breathing spontaneously. Inspired oxygen concentration (F1O2) was varied in five steps from 21 to 100%. In dogs, blood was sampled from indwelling catheters in the pulmonary artery and aorta for measurement of PO2. Saturation-recovery and inversion-recovery tomographic images of the ventricular cavities were obtained supine during quiet breathing using a whole-body NMR scanner operating at a static magnetic field strength of 0.15 Tesla. From F1O2 21 to 100%, 1/T1 of LV increased by 11.6% in humans and 9.6% in dogs. In dogs, 1/T1 increased by 2.8% per 100 mm Hg increase in aortic PO2 (r > 0.87). There was no correlation in dogs between 1/T1 in RV and pulmonary artery PO2. The LV/RV 1/T1 ratio in dogs increased by 4% per 100 mm Hg increase in the LV-RV PO2 difference, and by 8% in humans as F1O2 increased from 21 to 100%. A rise in dissolved oxygen concentration increases NMR spin-lattice relaxation rates of blood in vivo to a small but significant extent.
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    Cangrejos gecarcinidos (crustacea; gecarcinidae) de colombia
    (1984) Henry Von Prahl; Gustavo Manjarrés
    Diagnostic patterns and figures allow correct identifications of those crabs; also coloration, ecology and their distribution are given. The following crabs are reported for Colombia: Gecarcinus (Gecarcinus) ruricola (Linnaeus, 1758), G. (G.) lateralis lateralis (Freminville, 1835), G. (G.) lateralis quadratus Saussure, 1835, G. (lohngarthia) malpilensis Faxon, 1893, Cardisoma guanhumi Latreille, 1825, C. crassum Smith, 1870, Ucides cordatus cordatus (Linnaeus, 1763) and U. cordatus occidentalis. (Ortman, 1898).
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    Effect of Oxygen Tension on NMR Spin-Lattice Relaxation Rate of Blood in vivo
    (Lippincott Williams & Wilkins, 1984) Anil Kumar Tripathi; Graeme M. Bydder; J. M. B. Hughes; J.M. Pennock; A. Goatcher; J. S. Orr; R. E. Steiner; R. H. Greenspan
    Spin-lattice relaxation rate (1/T1) was measured in the left (LV) and right (RV) ventricular cavities in four conscious normal humans and four anesthetized greyhound dogs breathing spontaneously. Inspired oxygen concentration (FIO2) was varied in five steps from 21 to 100%. In dogs, blood was sampled from indwelling catheters in the pulmonary artery and aorta for measurement of PO2. Saturation-recovery and inversion-recovery tomographic images of the ventricular cavities were obtained supine during quiet breathing using a whole-body NMR scanner operating at a static magnetic field strength of 0.15 Tesla. From FIO2 21 to 100%, 1/T1 of LV increased by 11.6% in humans and 9.6% in dogs. In dogs, 1/T1 increased by 2.8% per 100 mm Hg increase in aortic PO2 (r greater than 0.87). There was no correlation in dogs between 1/T1 in RV and pulmonary artery PO2. The LV/RV 1/T1 ratio in dogs increased by 4% per 100 mm Hg increase in the LV-RV PO2 difference, and by 8% in humans as FIO2 increased from 21 to 100%. A rise in dissolved oxygen concentration increases NMR spin-lattice relaxation rates of blood in vivo to a small but significant extent.
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    Comunicación preliminar sobre asentamientos precerámicos en el sur de Bolivia
    (1984) Jorge Arellano
    La presente comunicación trata de las primeras investigaciones de sitios precerámicos realizadas por el Instituto Nacional de Arqueología de Bolivia en el sur del altiplano, provincias Nor y Sur Lípez del Departamento de Potosí.
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    Los mudéjares de la Valencia de las cruzadas: un capitulo olvidado de la historia islámica
    (1984) Robert I. Burns
    De 1232 a 1245 Jaime I de Aragn se dedic a una campaa de conquista paulatina del Levante islmico de la Pennsula Ibrica, el sharq al Andalus. Por diversas razones -estrategia militar, beneficios econmicos, y la influencia de la tradicin-, la poblacin musulmana fue autorizada a quedarse en los territorios conquistados; pero por haber resistido hasta el fin, los moros de dos ciudades (Burriana y Valencia) fueron castigados con la expulsin. En mayor o menor grado, toda esta zona sinti los efectos de la emigracin, y levantamientos posteriores llevaron
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    INVESTOR RESPONSE TO NEW PRODUCT ANNOUNCEMENTS BY COMPUTER FIRMS: AN APT APPROACH
    (Wiley, 1984) Walter R. Holman; Charles R. Margenthaler; Harold D. Fletcher