Missing vas

A missing vas deferens: practical implications for urologists performing vasectomies and managing infertile men

The VAS Formalism in VASE

This paper discusses the visual algebraic speciication (vas) formalism and its supporting interactive environment (vase). The vas formalism is intended for the deenition of visual syntax and semantics and is aimed at generating language speciic environments. The collection construct of vas is emphasized in that it supports the convenient speciication of language constructs involving arbitrarily...

Vas Simulation Modeling . Random Numbers

Any algorithm of simulating the behavior of a real system requires a random number generator. A computer does not really generate random numbers because computer employs a deterministic algorithm but a list of pseudo-random numbers which can be considered random. There are many algorithms for computing random numbers and there is not a single best among them. Most programing languages have buil...

The Missing “Missing Middle”

T he notion that the distribution of firm size in poor countries is characterized by a bimodal distribution with a “missing middle” is a widely accepted fact in development economics (for example, see Krueger 2013). The idea of the missing middle is that there are a large number of small firms, some large firms, but very few medium-sized firms. The purported fact about the missing middle is cit...

Robotic Male Vas Deferens Intraluminal Injection System

Delivering an injection correctly into the small diamater lumen of a tubular biological structure placed under the skin and not visible to the eye presents difficulties in medical practice. Suitable assist devices are currently not available. A new concept has been formulated to combine four modes of nonradiological imaging: scanning electrical impedance plethysmography; ultrasound; transillumi...