La otra Nicaragua

La otra migración. Historias de discriminación de personas que vivieron con VIH en México

Mexican migration to the United States has been attributed to the poverty and economic polarization in Mexico. Although the dismantling of the peasant economy persists as a factor in demographic displacement, there have been recent changes in the causes that provoke the migration of Mexicans. Family violence, for example, appears as an important motivator in pushing women into the migratory flo...

Otra Bibliografía De Consulta

Cascadable Voltage-Mode Multifunction Biquad Employing Single OTRA

Abstract – A voltage-mode (VM), multi-input single-output (MISO) type multifunction biquad is proposed. It uses only one operational transresistance amplifier (OTRA) as the active element, while previously reported VM multifunction filters require more OTRAs. Proposed MISO type biquad configuration can realize all five different filter transfer functions. Theoretical results are verified with P...

Bottom Sediments of Lake Nicaragua and Lake Managua, Western Nicaragua

Lakes Nicaragua and Managua are large, rather shallow, fresh-water bodies that lie in a late Tertiary and Quaternary graben in western Nicaragua. The bottom sediments comprise highly organic diatomaceous volcanic silts and clays in which quartz plagioclase feldspar, dioctahedral montmorillonite and volcanic glass are the principal constituents. ' Organic nitrogen content of the lake sediments r...

Otra Based R-2r Ladder and Weighted Resistor Dac Realizations

This paper presents realization of R-2R ladder and weighted resistor digital to analog converters (DACs) using the Operational Trans Resistance Amplifiers (OTRA). These circuits use a single OTRA and are therefore power efficient. The functionality of the proposed converters is verified through SPICE simulations using CMOS based implementation of the OTRA. The circuits are shown to be 3-bit acc...