The local context and the spatial diffusion of multiparty competition in urban Mexico (1994-2000)

Multiparty competition, Mexican politics

Class voting, spatial segregation and metropolitan context: Operators in pluralized urban countries

class voting

Mexico’s war on organized crime has done little to reduce people’s fear of crime and victimization

For nearly a decade, Mexico has been embroiled in a war against organized crime, with little success. But how has this often violent campaign affected people’s fears of crime and victimization? In new research, Carlos J. Vilalta uses data from Mexico’s national victimization survey, and finds that people’s daily routines have been affected by their fears about crime, with many now no longer going out at night as a result, and that this is trend that can be made worse by people’s lack of trust in the police. He writes that policy makers need to distinguish between policies to get crime under control and policies to reduce people’s fear of crime

El Mecanismo Causal del Voto de Oposición a una Obra Vial: Una exploración Espacial y Sociológica

Este estudio presenta la geografía y los mecanismos causales del voto de oposición en el plebiscito a la construcción del segundo piso del Periférico en la ciudad de México. Contiene una revisión de la literatura especializada, una descripción de la obra y el plebiscito, sus resultados, indicadores socioeconómicos, y la aplicación de diversas técnicas de estadística espacial y pruebas no paramétricas. El análisis realizado muestra la existencia de explicaciones geográficas y sociológicas sobre el voto de oposición. Geográficamente se encontró que el voto de oposición fue mayor en promedio y en varianza en la zona alrededor de la obra. Sociológicamente se encontró que las áreas de la ciudad con los mejores salarios tendieron a oponerse la construcción de la obra, mientras que las áreas con los mayores niveles de marginación tendieron a aceptarla. Se detectó una correlación negativa entre el % voto perredista para jefe de gobierno y el % de voto de oposición a la obra pero este hallazgo requiere de una mayor elaboraciónOposición política, participación social, votación, análisis estadístico, geografía política

Una Evaluación Geográfica de la Política de Educación Media Superior de la Ciudad de México

En este trabajo presentamos una evaluación geográfica de la política de las preparatorias creadas y administradas por el gobierno de la ciudad de México. La revisión teórica y evaluación estadística realizadas nos ha permitido (1) construir relaciones explicativas útiles entre varios conceptos de teorías urbanas provenientes de escuelas divergentes, y de disciplinas diferentes, y a la vez (2) hacer una demostración empírica del incumplimiento de uno de los objetivos geográficos de esta política de la ciudad de México.

Hemodynamic features associated with abdominal aortic aneurysm (AAA) geometry

Recent findings have shown that maximum diameter of abdominal aortic aneurysm (AAA) and its growth rate are not entirely reliable indicators of rupture potential. The AAA geometrical shape and size may be related to the rupture risk which is a clinical manifestation of the balance between the forces generated by blood flow within the AAA and its strength. This study aims at assessing the hemodynamic features associated with the geometry of AAAs

Violent disorder in Ciudad Juarez : a spatial analysis of homicide

This HASOW Discussion Paper considers how demographic and socioeconomic factors correlate with homicidal violence in the context of Mexico´s “war on drugs”. We draw on Ciudad Juarez as a case study and social disorganization theory as an organizing framework. Social disorganization is expected to produce higher levels of homicidal violence. And while evidence detects several social disorganization factors associated with homicidal violence in Ciudad Juarez not all relationships appear as predicted by the theory. Drawing on public census and crime data, our statistical assessment detects 6 significant variables (or risks) positively associated with homicidal violence in Ciudad Juarez between 2009 and 2010. Likewise, the assessment finds 6 specific variables (or protective factors) that are negatively associated with above average homicide in the city between 2009 and 2010. The data and level of analysis do not conclusively present causation, nor was this the intent. Rather, we propose a baseline model for testing spatial-temporal dynamics of organized violence

Geometry of Prym semicanonical pencils and an application to cubic threefolds

In the moduli space $\mathcal{R}_{\mathrm{g}}$ of double étale covers of curves of a fixed genus $g$, the locus formed by covers of curves with a semicanonical pencil consists of two irreducible divisors $\mathcal{T}_g{ }^e$ and $\mathcal{T}_g^o$. We study the Prym map on these divisors, which shows significant differences between them and has a rich geometry in the cases of low genus. In particular, the analysis of $\mathcal{T}_5^o$ has enumerative consequences for lines on cubic threefolds