Aim: The present study was carried out to compare clinically and radiographically the efficacy of regenerative potential Demineralizedfreeze-dried bone allograft (DFDBA) Bioactive glass putty (Novabone© dental putty) in mandibular grade II furcation defects. Methods: In 34 Patients, 60 defects were treated using DFDBA putty. 30 furcations DFDBA, while bioactive used treat remaining defect. Clin...

An ionic current model of the retinal horizontal cell is constructed. The horizontal cell models are interconnected by gap junctions to form a horizontal cell layer. The light response properties of the L-type horizontal cell are analyzed using this model. We demonstrate the functional role of each ionic current and the role of the feedback loop between cones and horizontal cells. The present s...

We describe a stochastic birth-and-death model of evolution of horizontally transferred genes in microbial populations. The model is a generalization of the stochastic model described by Berg and Kurland and includes five parameters: the rate of mutational inactivation, selection coefficient, invasion rate (i.e., rate of arrival of a novel sequence from outside of the recipient population), wit...

Posterior dislocation of the shoulder is an uncommon injury. Diagnosis is difficult and often missed. Once diagnosed, management must be individualized depending on the amount of the defect of the humeral head and the time from injury. This article presents a case of a 40-year-old man with a 4-month history of bilateral locked posterior fracture-dislocation of the shoulders after a grand mal se...

background: lip carcinoma is a common cancer with a good prognosis and when patients refer early in the course of disease the results of treatment are acceptable. surgical procedures for reconstruction of lip defects are the use of remaining lip tissue, tissue from the opposite lip, adjacent cheek tissue, distant flaps and microvascular free flaps. the bitemporal (visor) flap is a regional flap...

Springback is a common defect caused by elastic recovery in the plastic forming process, which can cause formed workpiece to deviate from target shape. The purpose of this paper grasp influence law process parameters on springback deviation so as optimize reduce springback. Taking Y-profile research object, such horizontal bending radius, vertical transition zone length, radius roller dies, and...

We repaired a long horizontal defect in the lower lip caused by the resection of squamous cell carcinoma by reconstructing the white lip with a V-Y advancement flap and vermilion with a tongue flap. During this procedure, we deepithelialized the V-Y flap, lifted the upper margin of the flap and sutured it to the remaining upper margin of the lip, and then covered it with the tongue flap, result...

Science becomes exact and trustworthy in proportion as it deals with number, measure and weight. Whatever is vague and ill-defined must be replaced by what is definite and numerical. Prescriptions, for instance, which used to order "a pinch" of one ingredient, "a little" of another, and " a good drop" of a third, are now given in drams and scruples. Visual capacity has for some years been gauge...