1 This condition is considered a Treacher Collinsâtype autosomal recessive mandibulofacial dysostosis (OMIM 248390). 2  In addition, Richieri-Costa et al and Splendore et al reported siblings with similar Treacher Collins syndrome born to parents without the condition.
The definition of productive is someone or something with a lot of things completed or someone or something that is very fertile and has abundant results. 1  An example of something that would be described as productive is a machine that cans a large volume vegetables. An example of someone who would be described as productive is a person who completes a lot of work in a short amount of time.
Economic efficiency is, roughly speaking, a situation in which nothing can be improved without something else being hurt. Depending on the context, it is usually one of the following two related concepts: 1  Allocative or Pareto efficiency: any changes made to assist one person would harm another. Productive efficiency: no additional output can be obtained without increasing the amount of inputs, and production proceeds at the lowest possible average total cost.