Far from being open to all, admission is restricted by arbitrary district lines. ... children are restricted to a single assigned school based on their home address and arbitrary boundary lines.

A boundary-integral formulation is introduced that enables droplets to interact with arbitrary smooth surfaces in tight-squeezing conditions. The behavior of droplets flowing between and around ...

Once again, the key control measures used to delineate the deep, close, and rear areas of 1AD’s operational area are boundaries. A boundary is “a line that delineates surface areas for the ...