‎in this paper, using the idea of convexificators, we study boundedness and nonemptiness of lagrange multipliers satisfying the first order necessary conditions. we consider a class of nons- mooth fractional programming problems with equality, inequality constraints and an arbitrary set constraint. within this context, define generalized mangasarian-fromovitz constraint qualification and show t...

We study a procurement setting in which the buyer seeks a low price but will not allocate the contract to a supplier who has not passed qualification screening. Qualification screening is costly for the buyer, involving product tests, site visits, and interviews. In addition to a qualified incumbent supplier, the buyer has an entrant of unknown qualification. The buyer wishes to run a price-onl...

In this paper we describe the model-based approach to tool qualification starting from the process model for the determination of the qualification need until the model for test and qualification. The model-based approach can automate many steps from checking the syntactical requirements completeness until the determination whether all requirements have been implemented and successfully tested....

In this paper we study the qualification problem in theories of reasoning about actions and change and the link of this problem to properties of representation for expressing such theories. We examine the interaction of the qualification problem with the frame and ramification problems and show how an integrated solution to these problems can be developed where the frame persistence and constra...

In the past, students in England and Wales born within the first five months of the academic year could leave school one term earlier than those born later in the year. Focusing on women, those who were required to stay on an extra term more frequently hold some academic qualification. Using having been required to stay on as an exogenous factor affecting academic attainment, we find that holdi...

In this paper, we introduce a constant positive linear dependence condition (CPLD), which is weaker than the Mangasarian–Fromovitz constraint qualification (MFCQ) and the constant rank constraint qualification (CRCQ). We show that a limit point of a sequence of approximating Karush–Kuhn–Tucker (KKT) points is a KKT point if the CPLD holds there. We show that a KKT point satisfying the CPLD and ...

In this work we introduce a relaxed version of the constant positive linear dependence constraint qualification (CPLD) that we call RCPLD. This development is inspired by a recent generalization of the constant rank constraint qualification from Minchenko and Stakhovski that was called RCR. We show that RCPLD is enough to ensure the convergence of an augmented Lagrangian algorithm and asserts t...

OBJECTIVE to identify, describe and analyze characteristics of leadership, head nurses and participants in the teaching-learning process of leadership in Nursing, according to nurse professors who performed studies on this theme and taught such content between 1972 and 1994 in nursing schools of the state of São Paulo, southeastern Brazil. METHODS Thematic Oral History was used. A total of fo...

P reparative chromatography is the dominant purification technique in the production of biological compounds, especially for bioseparations. The column used is central to the performance of the chromatographic step. To ensure robust and reproducible column performance, columns need to be qualified in an acceptable fashion before each use. Some of the critical elements of column qualification in...