Browsing by Fecha, starting with "1985"

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Ni una moral, ni una politica, ni un humanismo ateo
(1985) J Siles-Salinas
Comparisons of immunological tests for serodiagnosis of Chagas disease in Bolivian patients
(Facultad de Medicina, Enfermería, Nutrición y Tecnología Médica, 1985) Brenière, SF
Abstract. Enzyme linked immunosorbent assay (ELISA) and immunoelectrophoresis (IEP) were evaluated and compared to the classical immunofluorescence (IF) and complement fixation test (CFT) in the immunological diagnosis of Chagas' disease, using 407 sera from Bolivian patients. 72.7 to 79.5% of randomised sera, coming from patients living in endemic areas for Chagas' disease were considered as positive, according to the test limits, previously determined. The techniques could be classified according to their percentage detection as ELISA > IF > CFT > IEP. The quantitative correlations between the tests were excellent (p < 0.001). 92.8% of the sera were positive or negative for the four tests, 6.1% for three tests and 1.1% for only two tests. The agreement between the tests ranged from 94.6 to 99.2%, co-positivity from 95.5 to 100% and co-negativity from 88.5 to 100%. IF gave the best results, and could be considered as the reference test since it was easy and rapid to perform. However to avoid errors or discrepancies between laboratories, two tests, such as IF and CFT, might be associated. ELISA can be used if higher sensitivity is required. IEP showed 1 to 14 precipitation bands in 96% of the sera from infected patients. The precipitation band 5, previously demonstrated as Trypanosoma cruzi specific, was present in 73% of these sera, indicating the interest to use immunoprecipitation test, if more specificity is required for the immunodiagnosis of Chagas' disease.
Comercialización y posibilidades de industrialización de cítricos en Los Yungas de La Paz
(Facultad de Ciencias Económicas y Financieras, 1985) Zeballos Miranda, Heriberto V.; Vargas Chacón, David
1. Descripción. Aspectos generales de los Yungas de La Paz. 2.Plan de reabilitación 1984-1987. 3.Identificación del problema. 4.Sistema de comercialización de frutas cítricas. 5.Oferta y demanda de los cítricos. 6.Mercado internacional de jugos cítricos. 7.Destino de la producción de frutas cítricas en Chile. Establecimiento de un sistema eficiente de comercialización de cítricos en el país. 9.Utilización de los excedentes de producción agrícola. 10.Localizado de la planta procesadora de cítricos. 11.Proyección de la demanda interna. 12.Conclusiones generales. 13.Cuadros estadísticos. 14.Anexos.
Módulos noetherianos y artinianos
(Facultad de Ciencias Puras y Naturales, 1985) Mendoza Montaño, Domingo Germán; Iberkleld, Wolf
Este trabajo está dirigido al tratamiento de los módulos noetherianos y artinianos, estructuras sobre las cuales se realiza el dimensionamiento, para luego hallar la longitud de tales módulos. Inicialmente se estudian los R-módulos con sus respectivos morfismos, para luego tener en dichas estructuras las sucesiones exactas, series de composición y las cadenas estacionarias.
La teoría del objeto sensible y la verdad como correspondencia en Bertrand Russell
(Facultad de Humanidades y Ciencias de la Educación, 1985) Tancara Quispe, Constantino; Carrasco de la vega, Ruben
En esta investigacion se demuestra que la teoria del objeto sensible, la cual demuestra la existencia de sustancias netrales llamadas sensibles con las que se construyen los terminos de la relacion de conocer: el sujeto y el objeto, constituye una teoria fundamental para el desarrollo de la teoria de la correspondiencia de la verdad russelliana. La tesis de esta ultima teoria sostiene que los contenidos - proposisiciones - de ciertos hechos mentales llamados creencias entran en correspondencia con otros hechos que no son estas creencias. Estos hechos pueden darse en la experiencia como fuera de ella. La correspondencia en cada caso es diferente.
Résultats des observations réalisées en 1984 sur le site du terminal méthanier de Montoir-sur-Loire. Effets des ouvrages de prise d'eau sur l'ichtyofaune estuarienne: Convention GDF - Rapport final 1984
(1985) Frédéric Lardeux; Yann Herbert
This report summarizes a biological monitoring study conducted in 1984 by IFREMER, at the request of GAZ DE FRANCE, concerning the impacts of the Montoir liquefied natural gas terminal on the Loire estuarine ecosystem, particularly on ichthyofauna (fish and other aquatic species). The goal was to assess the mechanical impact of the water intake system on the mortality of fish species by observing the fauna trapped in the pumping system and the chances of survival after being released back into the Loire.The study identifies several issues, notably the limited effectiveness of the screening system, which allows larger fish (such as eels) to pass through and get trapped on the drums, preventing their return to the Loire. Additionally, the cleaning rakes often deposit trapped fish into waste bins, blocking their escape. The report suggests increasing the rotation frequency of the cleaning drums and improving the evacuation systems to reduce fish mortality. It also recommends regular cleaning of the drainage channels to prevent the accumulation of waste (such as algae and detached young mussels) that impairs the effective evacuation of fish.In conclusion, the terminal's impact is exacerbated by inadequate management of the pumping and filtration system, affecting the estuarine aquatic fauna.
Failure of interpolation for quantifiers of monadic type
(Springer Nature, 1985) Xavier Caicedo
Local versus Regional Mantle Heterogeneities: Evidence from Hygromagmaphile Elements
(1985) H. Bougault; J. L. Joron; M. Treuil; René C. Maury
The main objective of Leg 82 of the Glomar Challenger was to document mantle heterogeneity in the vicinity of, and away from, a so-called hot spot: the Azores Triple Junction. One of the geochemical tools that permits, at least in part, the recognition of mantle heterogeneities uses hygromagmaphile elements, those elements that have an affinity for the liquid. This tool is presented in terms of an extended Coryell-Masuda plot, which incorporates within the rare earth elements the hygromagmaphile transition elements Th, Ta, Zr, Hf, Ti, Y, and V. The extended Coryell-Masuda plot is used to summarize our knowledge of mantle heterogeneity along the ridge axis at zero-age. It is also used by choosing those hygromagmaphile elements that can be analyzed on board by X-ray fluorescence spectrometry to give preliminary information on the enriched or depleted character of recovered samples. Shore-based results, which include analyses of most of the hygromagmaphile elements measured either by X-ray spectrometry or neutron activation analysis, confirm the shipboard data.
Background, Objectives, and Summary of Principal Results: Deep Sea Drilling Project Sites 556-564
(1985) H. Bougault; S. C. Cande
Israelis and Palestinians: Can They Make Peace?<sup>*</sup>
(Taylor & Francis, 1985) Simha Flapan
In dealing with this problem, the future of which may determine the future of Israel, the Arab world, and peace in the Middle East, it is impossible to avoid a critical review of the past. Both Israelis and Palestinians conceive of the future in terms of ideas and concepts from the past, when the mutual ignorance of each other's realities and problems led to distorted images of each other's national aspirations. In debating a solution to the conflict, it is also necessary to strip from it the elements of propaganda which have brainwashed and poisoned the minds of both peoples to an extent where leaders and decision makers have become its prisoners and the its victims. A good example of this was former Israeli Prime Minister Golda Meir's famous saying that there is no such thing as a people and the PLO leaders' equation of Zionism with racism and imperialism. At the beginning of this century, Theodor Herzl issued a manifesto on the creation of a Jewish state. A short time thereafter, a Palestinian intellectual, Najib Azuri, wrote the first manifesto on Arab nationalism, which concentrated on the Palestinian question. Herzl predicted that within fifty years, a Jewish state would be a reality. Azuri predicted that within several decades, the Middle East would be the setting for a clash
Una Reinterpretación de los Modelos de Crecimiento con Restricción de Divisas
(1985) Rodríguez R. Luis Hernando
Explora las consecuencias que sobre el proceso de crecimiento de un país en desarrollo pueden tener: en primer lugar, la realización de la acumulación de capital mediante importaciones y, en segundo lugar, la absorción de progreso técnico incorporado en los bienes de inversión importados. Para tal efecto, se construye un sencillo modelo agregado del tipo de dos brechas de la economía en desarrollo, al cual se le impone una condición de equilibrio dinámico; posteriormente, se le introduce el progreso técnico incorporado en los bienes de capital. El análisis desarrollado muestra: primero, que para lograr un crecimiento auto sostenido y en equilibrio se requiere que las exportaciones crezcan a una cierta tasa dada. Segundo, que en el marco de la economía internacional tecnológicamente jerarquizada, la magnitud de la restricción externa es función de la estrategia de desarrollo adoptada. Tercero, la existencia de una relación de dependencia entre la inversión que constituye demanda efectiva para la economía doméstica y la disponibilidad de divisas. Por otra parte, aclara la casualidad de los distintos regímenes de crecimiento en desequilibrio observados en los países en desarrollo
Energetic delayed hadrons in large air showers observed at 5200m above sea level
(1985) T. Kaneko; K. Hagiwara; H. Yoshii; N. Martinić; L. Siles; P. Miranda; F. Kakimoto; I. Tsuchimoto; N. Inoue; K. Suga
Energetic delayed hadrons in air showers with electron sizes in the range 10 to the 6th power to 10 to the 9th power were studied by observing the delayed bursts produced in the shield of nine square meter scintillation detectors in the Chacaltaya air-shower array. The frequency of such delayed burst is presented as a function of electron size, core distance and sec theta.
Aspectos comparativos del socialismo en el Tercer Mundo: Teoría y realidad de la modernización
(Universidad Internacional de La Rioja, 1985) Hugo Celso Felipe Mansilla
Effect of altitude on the physical growth of upper-class children of European ancestry
(Informa, 1985) Lawrence P. Greksa; Hilde Spielvogel; Esperanza Cáceres
The physical growth of 351 upper-socioeconomic-status children (9-20 years) of European ancestry residing in La Paz, Bolivia (altitude 3600 m) is described and compared with that of lowland children of similar background. The purpose is to evaluate the independent effect of continual exposure to atmospheric hypoxia during the period of growth and development on linear growth. The data presented here indicate that the effect of hypoxia on achieved stature ranges from minimal in males and none in females to a maximum of 3 cm in both sexes. The magnitude of this effect is relatively small compared to the potential effect of other factors which affect the growth of highland children.
Maximal exercise capacity in adolescent european and amerindian high-altitude natives
(Facultad de Medicina, Enfermería, Nutrición y Tecnología Médica, 1985) Greksa, Lawrence P
ABSTRACT Forty-seven highland natives were given maximal exercise tests on a treadmill ergometer at 3,600 m. The subjects were grouped into four subsamples on the basis of ethnicity (European vs. Aymara) and age (young vs. old adolescent). Two-way ANOVA indicated that VO2max adjusted for body size did not differ significantly between ethnic groups but was significantly larger in older than younger boys within each ethnic group (p less than .05). This finding does not support the hypothesis that Amerindian highland natives have adapted genetically to hypoxia but is consistent with the hypothesis that the relatively high VO2max's of highlanders are acquired by developmental adaptation. Several measures of ventilation and oxygen transport capacity differed significantly between ethnic groups, suggesting that growing European and Aymara boys may respond somewhat differently to the stress of high-altitude hypoxia. However, despite these differences, VO2max, an integrated measure of the overall functional capacity of the oxygen transport system, did not differ significantly between ethnic groups, suggesting that both groups are equally capable of meeting the body's oxygen requirements during maximal exercise at high altitude.
Maximal exercise capacity in adolescent European and Amerindian high‐altitude natives
(Wiley, 1985) Lawrence P. Greksa; Hilde Spielvogel; Luis Paredes‐Fernández
Forty-seven highland natives were given maximal exercise tests on a treadmill ergometer at 3,600 m. The subjects were grouped into four subsamples on the basis of ethnicity (European vs. Aymara) and age (young vs. old adolescent). Two-way ANOVA indicated that VO2max adjusted for body size did not differ significantly between ethnic groups but was significantly larger in older than younger boys within each ethnic group (p less than .05). This finding does not support the hypothesis that Amerindian highland natives have adapted genetically to hypoxia but is consistent with the hypothesis that the relatively high VO2max's of highlanders are acquired by developmental adaptation. Several measures of ventilation and oxygen transport capacity differed significantly between ethnic groups, suggesting that growing European and Aymara boys may respond somewhat differently to the stress of high-altitude hypoxia. However, despite these differences, VO2max, an integrated measure of the overall functional capacity of the oxygen transport system, did not differ significantly between ethnic groups, suggesting that both groups are equally capable of meeting the body's oxygen requirements during maximal exercise at high altitude.
Dickite from the San Pablo mine, Bolivia.
(Japan Association of Mineralogical Sciences, 1985) Alberto Capilla Sánchez; Katsutoshi Tanida; Tsuyoshi Kitamura
Chemical, physical, optical, X-ray and thermal data for dickite from San Pablo mine, La Paz Department, Boliva are given. The occurrence of dickite in Bolivia are recorded from some Potosi type mine in the Potosi and Oruro districts. However, the mineralogical data have not published.
Manejo dental de pacientes hipertensos
(1985) José L Castellanos; A.R Carranza
The Rock Art of Southern Africa. By J. David Lewis-Williams. Cambridge: Cambridge University Press, 1983. Pp. 68 + 61 plates. £12.95.
(Cambridge University Press, 1985) David W. Phillipson
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Manejo dental de pacientes diabéticos
(1985) José L Castellanos; A.R Carranza; L Díaz Guzmán