As a provider of Electronic Case Management solutions to knowledgeintensive businesses and organizations, the Danish company Exformatics has in recent years identified a need for flexible process support in the tools that we provide to our customers. We have addressed this need by adapting DCR Graphs, a formal declarative workflow notation developed at the IT University of Copenhagen. Through c...

Objective. To compare pre- and postoperative characteristics and surgical success rates of patients with and without previous episodes of dacryocystitis, who underwent external dacryocystorhinostomy (DCR) for nasolacrimal duct obstruction (NLDO). Methods. The medical files of all patients who underwent external DCR between 2006 and 2011 in our institution were reviewed. The retrieved data of pa...

BACKGROUND To compare the frequency of appearance of complications, anatomical success and functional success after conventional endoscopic dacryocystorhinostomies (EN-DCRs) or EN-DCR with otologic T-Type ventilation tube combined with silicone tube intubation in repeated revision cases. METHODS Twenty-two patients who had epiphora and recurrent dacryocystitis after at least a previous failed...

Let G = (V,E) be a simple graph with |V | = n nodes and |E| = m links, a subset K ⊆ V of terminals, a vector p = (p1, . . . , pm) ∈ [0, 1] and a positive integer d, called diameter. We assume nodes are perfect but links fail stochastically and independently, with probabilities qi = 1 − pi. The diameter-constrained reliability (DCR for short), is the probability that the terminals of the resulti...

Received for publication June’ 2009 ... ........................... Purpose: To compare the success rate of external dacryocystorhinostomy (with intubation) with suturing of the posterior flaps and without suturing of the posterior flaps. Material and methods: A prospective comparative study of 70 patients attending the Ophthalmology Department Military Hospital Rawalpindi between Dec 2005 and ...

Abstract Background Tear meniscus is one of the most important indices for therapeutic evaluation in treatment obstruction lacrimal drainage system, which can be assessed by slit lamp examination and fluorescein dye disappearance test as a semi quantitative measurement. Recently Anterior Segment Optical Coherence Tomography has enabled noninvasive assessment tear meniscus. Objective To evaluate...

Given generators for a group of permutations, it is shown that generators for the subgroups in a composition series can be found in polynomial time. The procedure also yields permutation representations of the composition factors. 1) Research supported by National Science Foundation Grants DCR-8403745 and DCR-8609491

BACKGROUND External dacryocystorhinostomy (DCR) is a surgical intervention aimed to treat blocked nasolacrimal ducts of almost all causes. To date there is only limited data available from the Sub Saharan African setting. OBJECTIVES This study aimed to provide further information of the outcomes of DCR in Africa. METHODS Records of all patients undergoing external DCR operations from Januar...

Let G = (V,E) be a simple graph with |V | = n nodes and |E| = m links, a subset K ⊆ V of terminals, a vector p = (p1, . . . , pm) ∈ [0, 1] and a positive integer d, called diameter. We assume nodes are perfect but links fail stochastically and independently, with probabilities qi = 1 − pi. The diameter-constrained reliability (DCR for short), is the probability that the terminals of the resulti...