a stimulus that is just strong enough to elicit a response. unconditioned stimulus. any stimulus that is capable of eliciting an unconditioned response. See also conditioning. unstructured stimulus. an unclear or ambiguous stimulus, the perception of which is influenced to a greater extent by the characteristics of the perceiver than by those of the stimulus.
Yip, YIP, or yips may refer to: Yip (nickname), a list of people. Ye (surname), a Chinese surname also romanized as Yip (è), including a list of people.
Origins of the Kiewitt Surname. There are no clear, concise answers to why or how one of your Kiewitt ancestors took on the surname. It may have been based on their occupation or a distinguising physical trait. Keep in mind that it was not unusual for a last name to be altered as an ancestor entered a new country.eb Sites & Blogs with Kiewitt Research. If you are having difficulty locating records for the last name of Kiewitt, contact the folks at ProGenealogists for a free research estimate. You may also find it helpful to read,  When, Why and How to Hire a Professional Genealogist ..