BACKGROUND Proper pre-operative facial analysis that includes a thorough evaluation of both the bony and soft tissue anatomy is paramount to success in performing aesthetic surgery of the face. Ethnic variations in soft tissue profile add an important variable to pre-operative facial analysis. The aim of our study was to determine the role of ethnic variations in soft tissue facial profiles th...

not long ago, city gates and entryways had high spatial value and were among the landmarks for marking city boundaries. today with cities having been expanded and developed, such aspect of the entrance concept is lost and entryways are turned to passages for transportation. in fact, the rich spatial value of such entrances has decreased as they are solely spaces for passing through out or into ...

An intervention on a variable removes the influences that usually have a causal effect on that variable. Gates [1] are a general-purpose graphical modelling notation for representing such context-specific independencies in the structure of a graphical model. We extend d-separation to cover gated graphical models and show that it subsumes do calculus [2] when gates are used to represent interven...

This paper examines the effects of geometric tolerances on the natural frequencies of rotating shafts. In order to model the tolerances, a code is written in MATLAB 2013 that produces deviated points. Deviated points are controlled by different geometric tolerances, including cylindricity, total run-out and coaxiality tolerances. Final surfaces and models passing through the points are created ...