Land cover maps reasonably depict areas that are strongly converted by human activities, but typically are unable to resolve low-density but widespread development patterns. Data products specifically designed to resolve land uses complement land cover datasets and likely improve our ability to understand the extent and complexity of human modification. Methods for developing a comprehensive la...

Beginning in 1992, the Slow The Spread (STS) pilot project was initiated to target gypsy moth (Lymantria dispar L.) spread rate reduction by controlling populations in the transition zone. The project uses intensive monitoring techniques, with pheromone-baited sticky moth traps, to detect low-level populations and target them for eradication. The primary objective of the pilot project was to ev...

Rotation, tillage, and variety main effects on grain yield were all significant in 2002. Rice grain yield, over all treatment combinations, averaged 159 bu/acre, which was 22 bu/acre more than in 2001. Grain yields for the two 3-phase rotations were 180 bu/acre for the rice-corn-soybeans rotation and 177 bu/acre for the rice-corn (wheat)soybean rotation. These yields were slightly better than t...

The subjective concept of health included in the self-rated health process allows identifying factors associated with good self-rated health in populations. This cross-sectional population-based study in 2007-2008 focused on self-rated health and associated factors among adults (n = 1,516) in Rio Branco, Acre State, Brazil. The multivariate analysis used Poisson regression, with fair/poor self-...

This was a descriptive statistical study of 8,516 cases of American tegumentary leishmaniasis in the State of Acre, Brazil, from 2001 to 2006 (second period), comparing the results to a previous publication with data from the same State for 1992 to 1997 (first period). Prevalence in the State more than doubled (55.7/10,000 inhabitants from 1992 to 1997 and 128.5/10,000 inhabitants from 2001 to ...

BACKGROUND Studies involving the built environment have typically relied on US Census data to measure residential density. However, census geographic units are often unsuited to health-related research, especially in rural areas where development is clustered and discontinuous. OBJECTIVE We evaluated the accuracy of both standard census methods and alternative GIS-based methods to measure rur...

When I arrived in Lancaster County, in May of 1989, every acre of land seemed to be for sale. The county's farmland preservation program that I was to head had saved only 5,600 acres, less than one percent of the entire county. Comments Reprinted from Planning, January 2000, pages 14-17. This journal article is available at ScholarlyCommons: http://repository.upenn.edu/cplan_papers/27 Copyright...

pancreatic stent proximal migration is a well known complication of pancreatic duct stenting, which occurs in about 5-6% of cases. serious complications should be avoided by retrieval of the stent via different endoscopic techniques. we report a new technique previously reported only once (in a pancreatic duct with underlying pathology), to remove the proximally migrated pancreatic stent in a n...