Tight Flow-Based Formulations for the Asymmetric Traveling Salesman Problem and Their Applications to some Scheduling Problems
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- Doctoral Dissertations 
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Working Through Problems: An Investigation of the Problems and Problem-Solving Approaches of Beginning Teachers Jones, Troy (Virginia Tech, 2008-08-07)The purpose of the present investigation was to determine what professional and personal problems elementary-school teachers face during their initial years of teaching and how they cope with or solve these problems. ...
Branch-and-Price Method for Stochastic Generalized Assignment Problem, Hospital Staff Scheduling Problem and Stochastic Short-Term Personnel Planning Problem Kim, Seon Ki (Virginia Tech, 2009-03-05)The work presented in this dissertation has been focused on exploiting the branch-and-price (BNP) method for the solution of various stochastic mixed integer programming problems (MIPs). In particular, we address the ...
The relationship among family problems, individual adjustments and the reentry students' perception of problems with reentry Fry, Virginia Fijak (Virginia Tech, 1992-03-05)
The composition of the population of undergraduate students in the U. S. has changed dramatically in recent years. A number of factors including societal transformations, a changing economy and demographic trends of the ...