RESUMEN
El presente trabajo de graduación tiene como objetivo la recopilación de los diferentes mecanismos de reacción de los Indicadores Químicos, su aplicación práctica en los diferentes Métodos Clásicos de Análisis y la comparación de la pureza de los analitos…

Con el objetivo de determinar las diferencias en el peso de los órganos (PO) en relación al peso corporal (PC) entre las cepas de ratones C57Bl/6 y NMRI/UCLA, en ambos sexos y a edad variable y el efecto del sexo,…

Mainly basaltic samples from 60 sites in the Yemen Volcanic Group show somewhat high degrees of between-site directional scatter, but enable normal, reversed and intermediate polarities to be identified during thermal demagnetisation. Individual chrons cannot be assigned directly from the…

A geoelectrical characterization of an oil-contaminated site, where thirty years ago an oil well was drilled, was carried out using vertical electrical sounding (VES) method on 2D Resistivity Imaging technology and 2D interpretation. VES data were added by water resistivity…

The horizontal gravity gradient and the principle of superposition of potential fields are used in the interpretation of gravity data from a sulfide ore body in terms of a 3-D structure of densities. The ore body is constituted of massive…

The variations of Total Electron Content (TEC) are analysed during a geomagnetic storm, from measurements of ionospheric delay in code and phase, with the satellites of the Global Positioning System (GPS) at Tucumán, Argentina. The variations of TEC in April…

The influence of clay content in sandy and clayey soils on hydraulic conductivity (filtration coefficient) is considered. Areview of published experimental data on the relationship of hydraulic conductivity with soil lithology and grain size, as dependenton clay content is presented.…

The catalog of the Red Sísmica del Noroeste de México (RESNOM) operated by CICESE is investigated. Probable artificial effects are detected. Current values for the minimum magnitude of completeness (Mc) and its spatial variations are outlined. Significant changes in reporting…

Con el propósito de estudiar los factores genéticos, fisiológicos y ambientales que afectan la producción de leche en vacas mestizas Criollo Limonero, se analizaron 106 registros de lactancias pertenecientes a vacas mestizas G1: ½ Holstein x ½ Criollo Limonero y…

En la presente investigación se evaluaron las características seminales de 8 toros Holstein entre 2 y 4 años de edad pertenecientes a un centro de inseminación artificial (CIA-UACh) mediante pruebas de rutina para estimar su fertilidad potencial mediante el índice…