A graph Gs = (V,Es) is a sandwich for a pair of graph Gt = (V,Et) and G = (V,E) if Et ⊆ Es ⊆ E. Any poset, or partially ordered set, admits a unique graph representation which is directed and transitive. In this paper we introduce the notion of sandwich poset problems inspired by former sandwich problems on comparability graphs. In particular, we are interested in seriesparallel and interval po...

Background: The clinical success of sandwich technique depends on the strength of resin-modified glass ionomer cement (RMGIC) bonding to both dentin and resin composite. Therefore, the shear bond strength (SBS) of resin composite bonded to RMGIC utilizing different resin adhesives versus a GIC-based adhesive was compared. Materials and methods: In this in vitro study, 84 holes (5×2 mm) were pre...

An enzyme-linked immunospecific assay "sandwich" technique was developed for detecting soluble antigen from the Legionnaires disease bacterium (Legionella pneumophila). With this technique, antigen was detected in urine specimens from guinea pigs inoculated intraperitoneally with heat-killed Legionnaires disease bacteria and in urine specimens from three of four patients who attended the Americ...

PURPOSE To investigate the advantages and the complications of the use of hard palate graft in the reconstruction of the inferior eyelids with large basocelular carcinoma. METHODS Review of specialized articles and report of the technique used in the Oculoplastic Department of the "Hospital Santa Casa de Porto Alegre". RESULTS The hard palate graft is an excellent replacement for posterior ...

Introduction: Plastination is a unique technique for preservation of biological specimens used for teaching purposes. The protocol of flexible sheet plastination includes fixation, slicing, dehydration, force impregnation, casting, and curing (Hajian, Rabiei, Fatollahpour & Esfandiary, 2008). The procedure is done by using P87 flexible unsaturated polyester resin and provides heavy, gross, frag...

the aim of this work is to evaluate the influence of fabrication methods on the com-pressive properties of sandwich composites using both experimental work and numerical simulations. two types of sandwich composites with e-glass/kevlar/polyester resin facings and end-grain balsa wood as core have been produced by vacuum infusion processing (vip) and hand-lay up (hl) method. compression tests on...

HYPOTHESIS Absorbable mesh slings can prevent radiation-induced bowel injury when adjuvant pelvic radiotherapy is given in the early postoperative period. We hypothesized that the mesh sling technique is similarly effective during "sandwich" sequence adjuvant chemoradiation. DESIGN Retrospective review. SETTING Tertiary care comprehensive cancer center. PATIENTS Nonrandomized series of 19...

in this paper, a rectangular sandwich plate with a constrained layer and an electrorheological (er) fluid core is investigated. the rectangular plate is covered an er fluid core and a constraining layer to improve the stability of the system. the two outer layers of the sandwich structure are elastic. the viscoelastic materials express the middle layer behavior under electric field and small st...