The aim of this thesis is to study the feasibility of using feedback immediately at the antenna to improve the out-of-band linearity of receivers. The idea is to reject all signals at the antenna node, except for those in the wanted band, i.e. to effectively create a high-Q RF filter at the input of the receiver. An exception should be made for the desired signal which is available as a zero-IF...

We perform a comprehensive study of stability of a pumped atom laser in the presence of pumping, damping, and outcoupling. We also introduce a realistic feedback scheme to improve stability by extracting energy from the condensate and determine its effectiveness. We find that while the feedback scheme is highly efficient in reducing condensate fluctuations, it usually does not alter the stabili...

since the emergence of the process-oriented approach in second language writing instruction, the issues of writing instruction have been predominantly concerned with what and how error feedback should be given to the students’ writing. the present study investigated the effect of explicit corrective feedback on writing accuracy of iranian intermediate efl learners (n = 44) in hamedan islamic az...

As incorporating software testing into programming assignments becomes routine, educators have begun to assess not only the correctness of students’ software, but also adequacy their tests. In practice, rely on code coverage measures, though its shortcomings are widely known. Mutation analysis is a stronger measure test adequacy, it too costly be applied beyond small programs developed in intro...

This research tested the prediction that Whites supply more lenient feedback to Blacks than to fellow Whites. In Study 1, White undergraduates were led to believe that they were giving feedback on essays written by either a Black or a White fellow student. As predicted, feedback was less critical when the supposed feedback recipient was Black rather than White. It was also predicted that the fe...