Believers and Neighbors: “Huaycán Is One and No One Shall Divide It”
Believers and Neighbors: "Huaycdn Is One and No One Shall Divide It" Contrary to the argument that evangelical Christianity is inherently apolitical or conservative, evangelicals in a new pueblo on Lima's periphery extended political mobilization to negotiating with municipal authorities, Catholic neighbors, and even Sendero Luminoso to define political and ideological space in the new neighborhood. Yet differences within and among denominations kept them from permanently coordinating their political activism. This case highlights the nature of citizenship building and political participation for evangelicals in Peru.
Urban Poverty, Political Participation, and the State: Lima, 1970–1990
"Urban Poverty, Political Participation, and the State" offers an unparalleled longitudinal view of how the urban poor saw themselves and their neighborhoods and how they behaved and organized to provide their neighborhoods with basic goods and services. Grounding research on theoretical notions from Albert Hirschman and an analytical framework from Verba and Nie, Dietz produces findings that hold great interest for comparativists and students of political behavior in general."
Virulence development and genetic polymorphism in Meloidogyne incognita (Kofoid & White) Chitwood after prolonged exposure to sublethal concentrations of nematicides and continuous growing of resistant tomato cultivars.
BACKGROUND
The root-knot nematode, Meloidogyne incognita (Kofoid & White) Chitwood, is an important plant pathogen damaging to tomato. Continuous use of resistant tomato cultivars and nematicides for its effective management might lead to resistance break-up or nematicide failure. Genetic variability and virulence in M. incognita on susceptible Pusa Ruby tomato were analysed by bioassay, esterase and DNA polymorphism after a 5 year weekly exposure to carbofuran, carbosulfan, cadusafos and triazophos at 0.0125, 0.0250 and 0.0500 microg g(-1). Virulence in M. incognita after a 5 year multiplication on resistant tomatoes was assessed.


RESULTS
The nematicidal treatments resulted in the development of virulent M. incognita populations. Their invasion potential increased significantly after continuous exposure to low concentrations of the nematicides. Also, growing resistant tomato cultivars for ten successive seasons resulted in a 6.6% increase in the invasion potential. These virulent populations exhibited 1-3 additional esterase and DNA bands compared with untreated populations.


CONCLUSION
A 5 year exposure of M. incognita to sublethal concentrations of nematicides or resistant tomato cultivars exerted enough selection pressure to cause genomic alterations for virulence development. Isozyme markers can be used for rapid and precise diagnostics of field populations by advisory services, enabling judicious remedial management decisions.