A hybrid zone between two species of lizards in the genus Sceloporus (S. cowlesi and S. tristichus) on the Mogollon Rim in Arizona provides a unique opportunity to study the processes of lineage divergence and merging. This hybrid zone involves complex interactions between 2 morphologically and ecologically divergent subspecies, 3 chromosomal groups, and 4 mitochondrial DNA (mtDNA) clades. The ...

The objective of this research is to design and demonstrate an agent-based modeling and analysis tool for evaluating General Aviation (GA) pilot situation awareness under free flight air traffic management (ATM). A computational tool is developed to assess free flight’s potential effect on GA operators, by combining an agent-based representation of the overall pilot/vehicle/ATM system with quan...

BACKGROUND In species across taxa, offspring have means to influence parental investment (PI). PI thus evolves as an interacting phenotype and indirect genetic effects may strongly affect the co-evolutionary dynamics of offspring and parental behaviors. Evolutionary theory focused on explaining how exaggerated offspring solicitation can be understood as resolution of parent-offspring conflict, ...

Most Delaunay refinement-based meshing algorithms maintain a vertex-free “buffer zone” enclosing the edges and faces in the mesh boundary to guarantee a lower bound on edge lengths. To maintain this buffer zone, vertex insertions on or near the domain boundary must be strictly ordered—it is this ordering requirement that makes parallelization difficult. In this paper, we show that it is possibl...

What is the relationship between armed violence and patriarchal values? This question addressed with help of a survey young men in conflict-affected southern provinces Thailand. In Study 1 we find that more values are prone to volunteer for paramilitary service. 2 uses natural experiment made possible by conscription lottery Thailand compare responses who were involuntarily enlisted do Military...

Geographic Information Systems (GIS) is an innovative mapping technology used around the world to identify boundaries of geographic features, infrastructure, and myriad uses across the landscape. Historically a land-based application, the use of GIS in coastal ecosystems is growing (Nath et al. 2000, Babcock et al.2005, Dempster and Sanchez-Jerez 2008). Coastal areas are heavily used for shippi...

Nowhere are the barriers to a functional health infrastructure more clearly on display than in the Goma region of Democratic Republic of Congo. Kaboru et al. report poorly integrated services for HIV and TB in this war-torn region. Priorities in conflict zones include provision of security, shelter, food, clean water and prevention of sexual violence. In Goma, immediate health priorities includ...