Data Envelopment Analysis (DEA) is the use of non-parametric mathematical programming that useful for measuring efficiency Decision Making Unit (DMU) an organization. This study uses Cooper and Rhodes (CCR) method known as DEA-CCR multiplier which aims to determine weight value each input output variable DMU being evaluated, but it not sufficient measure optimization. To get efficient a referen...

The Steiner tree problem which is known to be NP-Complete is the following. Given a weighted undirected graph G = (V;E), and a set X V of terminals, the objective is to nd a tree of minimum cost which connects all the terminals. If the graph is directed, in addition to X, we are given a root r 2 V , and the objective is to nd a minimum cost arborescence which connects the root to each of the te...

Σ k Π k DIFFm(Σ p k ) coDIFFm(Σ p k ) P Σ p k m-tt P Σ p k m+1-tt BH(Σ k ) Supported in part by grants NSF-CCR-9322513, NSF-INT-9513368/DAAD-315-PRO-fo-ab, and NSF-INT9815095/DAAD-315-PPP-gü-ab, and a NATO Postdoctoral Science Fellowship from the DAAD’s “Gemeinsames Hochschulsonderprogramm III von Bund und Ländern” program. This report combines and extends each of technical reports corr-cs.CC/9...

OBJECTIVE Although it is accepted that elevated plasma homocysteine (tHcy) levels occur in end-stage renal disease and type 2 diabetes, the changes with milder renal dysfunction (e.g., microalbuminuria) are less clearly established. This study explores the relationship among tHcy, creatinine clearance (Ccr), and albumin excretion rate (AER) in a population with type 2 diabetes. RESEARCH DESIG...

Let H be a collection of n hyperplanes in d-space. We will assume that the planes are in general position, meaning that any k planes meet in a d− k-flat, if k = 1, . . . , d, and not at all if k > d. It is not difficult to see that worst-case cell complexity can always be achieved by planes in general position. Let P be a set of m points, not lying on any hyperplane. Denote by K (d) j (P,H) the...

OBJECTIVES Extension of the standard model while retaining compliance with it is a challenging issue because there is currently no method for semantically or syntactically verifying an extended data model. A metadata-based extended model, named CCR+, was designed and implemented to achieve interoperability between standard and extended models. METHODS Furthermore, a multilayered validation me...

PURPOSE To determine the suppressive effects of antibodies (Abs) against CC-chemokine receptor (CCR)-1 and CCR-3 on eosinophil chemotaxis induced by culture supernatant from corneal keratocytes and by tears from severely allergic patients with corneal ulcer. METHODS Primary cultures of human corneal keratocytes were incubated with interleukin (IL)-4 (33.3 ng/mL) and tumor necrosis factor (TNF...