The Esri Projection Engine (PE) libraries deal with coordinate reference systems and their projections and transformations, as well as providing many support functions such as calculating distances ...

Analysis of mice expressing a human autoantibody explains why many B cells making antibodies against self-antigens are not eliminated but circulate in a functionally tolerant state of anergy. Upon ...

An ArcGIS Python Toolbox for converting between GIS grid coordinates and CAD/real-world surface measurements while preserving true curve geometry. This tool applies scale factors to GIS feature ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

The pool of mature αβ T cells positive for the T cell antigen receptor (TCR +) in the secondary lymphoid organs is generated through slow release of young cells from the thymus 1,2; formation of the T ...