Cycloactivism in Mexico City: Breaking the Rules Between Bodily Experiences and Technocratic Politics

Cycling in Mexico City is dangerous. But over the last two decades it has become less so. New cycleways, a large public bicycle-sharing scheme, various government cycling promotion projects and an abundance of official signalling demanding respect for cyclists have made bicycles visible as worthy vehicles on city streets. For cycloactivists, however, such improvements are not enough. Cyclists are frequently harassed, attacked or run over by motorists. Cycloactivists thus demand more and better cycleways as well as increased measures to address injustices in mobility issues across the city. They do so through protests, information campaigns, public performances and academic debates, and crucially, by cycling through city streets. This means that they use their bodies as symbols, to highlight their vulnerability. Along the way, they often break existing traffic rules to highlight how unfair they are and to draw attention to other demands. I refer to their efforts as experiential cycloactivism, which highlights cyclists making themselves vulnerable as a means of denouncing illegitimate rules and policies that need to be changed. I conclude the analysis by suggesting that their style of rule-breaking is a type of ritual with which they seek to improve the city, not burn it down

Assessment of metals behaviour in industrial soil using sequential extraction, multivariable analysis and a geostatistical approach

The main objectives of this studywere to evaluate the degree of Pb, Cu, Zn, Cd, Cr and Ni pollution using pollution indexes and geostatistical approach, and to assess metals dynamic using sequential extraction procedure and multivariable statistical analysis in surface soils and soil profiles froman industrial complex as a base for a correct management in order to avoid health and environmental problems. Results showed that the industrial activity increases both Pb (103 mgkg−1), Zn (526 mgkg−1) and Cu (39 mgkg−1) concentrations and salinity in soil. Pollution indexes showed that industrial soils were moderately contaminated by Zn, Pb, Cu, Cr and Ni as well as a moderate ecological risk was reported. Two main areas were identified: southeast area with the highest metal concentrations, and northwest areawith the lowest levels. Chemical speciation of metals showed that the residual phase was the dominant phase for all metals. However, Pb and Zn were highly associated to the reducible phase (25–30% and 35–40% respectively) and a significant concentration was associated to carbonates (5% for both metals). In contrast, Cu, Cr and Ni were mainly bound to the residual phase (N80% for all metals) with low concentrations retained to reducible phase, and very low concentrations bound to the most labile phases. Cd was the most mobile metal with high concentration associated to exchangeable (5%) and carbonates (15–20%) phases. Therefore, Pb, Zn and Cd represent the greatest risk for human health and the environment

Estudio de mercado para el establecimiento del programa de Maestría en Sistemas Integrados de Gestión de la Calidad

De acuerdo a lo establecido por el Ministerio de Educación, específicamente por la Comisión Nacional Intersectorial de Aseguramiento de la Calidad de la Educación Superior ¿ CONACES, se realizó un estudio en las ciudades de Armenia, Pereira y Manizales para establecer la factibilidad técnica del programa de maestría ¿Sistemas Integrados de Gestión de la Calidad¿, estructurado por la UTP en la Escuela de Posgrado de la facultad de Ingeniería Industrial, mediante una encuesta a una muestra de 190 personas con funciones de dirección o líderes de áreas relacionadas con gestión de la calidad vinculadas a empresas (medianas y grandes), registradas ante la Cámara de Comercio y personas independientes egresadas de la facultad de Ingeniería Industrial de la UTP. Respecto al nivel de escolaridad que desean alcanzar las personas encuestadas el 50,6% manifestó que quiere alcanzar el titulo de maestría, el 11,4% de especialización y el 38,0% de doctorado. Se pudo establecer que para el 65% de los encuestados, la empresa destina recursos (económicos o en especie) para contribuir en los procesos de formación. El 73,2% considera que las asignaturas son las adecuadas para adelantar el programa y que es aplicable el conocimiento en diferentes sectores productivos; sin embargo, el 26,8% consideró que podrían incluirse otras asignaturas, como son: balance score card, ISO 22000. Gestión de la inocuidad en la cadena agroalimentaria, Buenas Prácticas Agrícolas, diseño de procesos, gestión de la información, indicadores de gestión, inglés, mejoramiento continuo e investigación de operaciones. El programa de maestría es necesario como contribución al desarrollo sostenible y competitivo de las organizaciones de la zona cafetera central.According to what is established by the Ministry of Education, specifically by the National Intersectional Commission for Quality Assurance in Higher Education - CONACES, a study was conducted in the cities of Armenia, Pereira and Manizales to establish the technical feasibility of the Masters' Program “Integrated Systems Quality Management”, organized by the UTP in the Graduate School of the Faculty of Industrial Engineering, through a survey of a sample of 190 people with leadership roles or leaders of areas relating to quality management related businesses (medium and large), registered with the Chamber of Commerce and independent persons graduated from the faculty of Industrial Engineering of the UTP. Regarding the level of schooling they want to reach, 50.6% of the people surveyed said they want to achieve the Master’s degree, 11.4% a specialization degree and 38.0% a doctorate. We were able to establish that for 65% of the respondents, the company intended resources (financial or of material value) to assist in the formation processes. 73.2% believed that the subjects are appropriate to advance the agenda and that knowledge is applicable in various productive sectors, but 26.8% felt that they could include other subjects such as: balance score cards, ISO 22000. Management of safety in the food chain, Good Agricultural Practices, design processes, information management, management indicators, English, continuous improvement and operations research. The master's program is necessary as a contribution to sustainable development and competitive organizations in the central coffee zone

Propuesta de un protocolo de evaluación de la calidad ecológica de ríos andinos (CERA) y su aplicación a dos cuencas en Ecuador y Perú

A Rapid Protocol is presented for Evaluation of the Ecological Status of Andean Rivers (CERA) localized over 2000 m.a.s.l. from the Northern Andes (Venezuela) through the Altiplano in the Central Andes (Bolivia). This protocol was used in 45 sampling sites in the Guayllabamba River Basin in Ecuador and in 42 sampling sites in the Cañete River Basin in Peru. Previously, and in order to test if the sampling stations may or not be considered reference stations, we constructed a method that assesses 24 basin attributes, hydrology, reach and riverbed and that fluctuates from 24 to 120 points; sites with values higher than 100 were considered as potential reference sites. Besides the benthic macroinvertebrats' evaluation, the river habitat and riparian vegetation were also evaluated through of the application of the indices ABI (Ríos et al., submitted), IHF (Pardo et al., 2002) and QBR-And, respectively. The convenience of the initial allocation of the reference sites was evaluated as well. These indices have been properly adapted to the conditions and characteristics of the high Andes rivers. The results obtained for both basins were compared and discussed. Through the use of the CERA protocol, the particular perturbation gradients and the natural variability of the reference sites in both countries were recognized.Se presenta un protocolo rápido de evaluación de la Calidad Ecológica de Ríos Andinos (CERA), situados sobre los 2000 m.s.n.m, desde los Andes del Norte (Venezuela) hasta el Altiplano de los Andes Centrales (Bolivia). Este protocolo ha sido aplicado en 45 estaciones de muestreo en la cuenca del río Guayllabamba en Ecuador y en 42 estaciones de muestreo en la cuenca del río Cañete en Perú. Previamente, para probar si las estaciones de muestreo pueden o no ser estaciones de referencia construimos un método que valora 24 atributos de cuenca, hidrología, tramo y lecho y que fluctúa de 24 a 120 puntos; valores superiores a 100 fueron considerados como sitios potencialmente de referencia. Además del estudio de los macroinvertebrados bentónicos, se evaluó el habitat fluvial y la comunidad vegetal de ribera a través de la aplicación de los índices ABI (Ríos et al., sometido), IHF (Pardo et al., 2002) y QBR-And respectivamente; así como la conveniencia de la asignación inicial de las estaciones de referencia. Estos índices han sido adecuadamente adaptados a las condiciones y características propias de los ríos altoandinos. Los resultados obtenidos fueron comparados y discutidos entre ambas cuencas. Mediante la aplicación del protocolo CERA se han reconocido los respectivos gradientes de perturbación y la variabilidad natural de las estaciones de referencia en ambos países

Trophic ecology of Hyalella sp. (Crustacea: Amphipoda) in a High Andes headwater river with travertine deposits

We studied the diet of 50 individuals of Hyalella sp. collected in the karstic headwaters of a highaltitude Andean river (3817 m a.s.l. Peru) in four different habitats: macrophytes, bryophytes, leaf litter, and layers of travertine. The gut content analysis showed a dominance of fine particulate organic matter (FPOM) in most habitats - layers of travertine (69.5%), Myriophylum (58.5%) and bryophytes (56.8%) - except for individuals collected in leaf litter where coarse particulate organic matter (CPOM) represented 68% of gut content, which indicates a high trophic flexibility of Hyalella sp. Likewise, in an experiment with feeding chambers in situ during three days, twenty individuals of Hyalella sp. presented a higher consumption of leaf litter of native species (Polylepis sp.) (0.025 mg/day) than those of an introduced species (Eucalyptus globulus) (0.008 mg/day)

¿Cómo lograr desarrollo desde la universidad? una propuesta de creación de empresas entre universitarios

Este artículo tiene como objetivo presentar un modelo de formación empresarial para universidades especialmente de carácter privado. Para la realización del mismo se ha  tenido en cuenta la experiencia en el desarrollo de la actitud empresarial aplicada desde el año 1999 en la universidad Tecnológica de Bolívar, estudios y conceptos teóricos de la formación en emprendimiento en la Unión Europea para concebir una universidad emprendedora a partir de resultados concretos de investigación que apoyen la generación de conocimientos en la sociedad de acuerdo con la época presente y con visión de futuro. Por último se resalta en las conclusiones la interrelación de la universidad con el entorno a través de la actitud emprendedora que pueda generarse en la formación profesional de sus estudiantes

Comparación de la solución de ecuaciones diferenciales usando diferencias finitas y elemento finito

Tesis (Maestría en Ciencias de la Ingeniería Mecánica con Especialidad en Térmica y Fluidos) UANLUANLhttp://www.uanl.mx