Three models of coordination—Reo, Actors-Roles-Coordinators (ARC), and Reflective Russian Dolls (RRD)—are compared and contrasted according to a set of coordination features. Mappings between their semantic models are defined. Use of the models is illustrated by a small case study.

A restrained Roman dominating function (RRD-function) on a graph \(G=(V,E)\) is \(f\) from \(V\) into \(\{0,1,2\}\) satisfying: (i) every vertex \(u\) with \(f(u)=0\) adjacent to \(v\) \(f(v)=2\); (ii) the subgraph induced by vertices assigned 0 under has no isolated vertices. The weight of an RRD-function sum its value over whole set vertices, and domination number minimum \(G.\) In this paper...

Purpose: Evaluating the effects of memantine on visual function after scleral buckling for rhegmatogenous retinal detachment (RRD) Methods: In a Double blind prospective randomized clinical trial, 61 patients with clinical diagnosis of less than 4 weeks macula-off RRD who had successful scleral buckle surgery had been selected and divided into two randomized groups. Thirty of them received 5 mg...

BACKGROUND/AIMS Patients with rhegmatogenous retinal detachment (RRD) who develop postoperative proliferative vitreoretinopathy (PVR) have been found to have higher preoperative laser flare values than patients with RRD who do not develop this complication. Measurement of laser flare has therefore been proposed as an objective, rapid and non-invasive method for identifying high-risk patients. T...

BACKGROUND Maple syrup urine disease (MSUD) is a rare metabolic disorder, affecting the metabolism of branched chain amino-acids (Valine, Leukine, Isoleukine). We present a rare case of rhegmatogenous retinal detachment (RRD) in a MSUD patient. CASE PRESENTATION We performed amino acid analysis of aqueous humour, vitreous and serum samples obtained during surgery from a 24 year old female MSU...

OBJECTIVES Despite the modern advances in thyroid surgery, recurrent laryngeal nerve (rln) paralysis is still a critical problem. In order to decrease the rate of this complication, rln anatomy has been studied intensively. In our study, we aimed to recognize the relationship of rln and landmarks of the first tracheal ring. METHODS Eighty-six female and 18 male patients who were undergone tot...

OBJECTIVE The aim of this study was to report and compare the anatomic and functional results of primary vitrectomy with and without 360° encircling scleral buckle (SB) for the treatment of rhegmatogenous retinal detachment (RRD) due to inferior retinal break(s). BACKGROUND A variety of options, including SB, pars plana vitrectomy (PPV) with or without SB, and pneumatic retinopexy have been d...

OBJECTIVE To determine the results of 23-gauge sutureless vitreo-retinal surgery for superior/supero-temporal rhegmatogenous retinal detachment (RRD). STUDY DESIGN Quasi experimental study. PLACE AND DURATION OF STUDY LRBT, Free Base Eye Hospital, Karachi, from January 2010 to December 2011. METHODOLOGY Adult patients who underwent 23-gauge sutureless vitreo-retinal surgery along with use...

Purpose The purpose of this study was to study the incidence and factors influencing retinal displacement in eyes treated for rhegmatogenous retinal detachment (RRD) with pars plana vitrectomy (PPV) and gas or silicone oil. Methods This was a prospective observational case series. One hundred twenty-five eyes with macula-off RRD from 125 patients underwent 25-gauge PPV at two vitreoretinal in...

PURPOSE To report the outcome of scleral buckling using a non-contact wide-angle viewing system with a 25-gauge chandelier endoilluminator. METHODS Retrospective analyses of medical records were performed for 17 eyes of 16 patients with primary rhegmatogenous retinal detachment (RRD) without proliferative vitreoretinopathy who had undergone conventional scleral buckling with cryoretinopexy us...