In this paper we define oriented matroids and develop their fundamental properties, which
lead to generalizations of known results concerning directed graphs, convex polytopes, and …

A simple proof of finiteness is given for the simplex method under an easily described
pivoting rule. A second new finite version of the simplex method is also presented.

In February 1979 a note by LG Khachiyan indicated how an ellipsoid method for linear
programming can be implemented in polynomial time. This result has caused great excitement …

Determining efficient sequences of X-ray diffraction measurements on a four-circle
diffractometer leads to extremely large traveling salesman problems. Simple TSP heuristics give …

PURPOSE. To explore the importance and meaning of hope for family members of people
with mental illness. METHODS. Focused in‐depth interviews with 16 family members in …

In the context of oriented matroids we establish and elaborate upon an abstraction of linear
programming duality foreseen by Rockafellar in his work on elementary vectors. We describe …

This new edition of Social Work Practice in Mental Health builds on the underpinning principles
of the previous editions whilst reflecting how the context for practice has steadily evolved…

There is increasing evidence that an involuntary hospital admission and treatment can
undermine the therapeutic relationship. While good relationships with staff are important factors …

Historically Black colleges and universities (HBCUs) continue to provide a substantial role in
the black community and in higher education by providing a culture of excellence. Yet, their …

Personal recovery is a guiding principle in mental health and suggests that consumers own
and are responsible for their own recovery. An exclusive focus on the recovery of those living …