UNLABELLED The need for long-term retention to prevent post-treatment tooth movement is now widely accepted by orthodontists. This may be achieved with removable retainers or permanent bonded retainers. This article aims to provide simple guidance for the dentist on how to maintain and repair both removable and fixed retainers. CLINICAL RELEVANCE The general dental practitioner is more likely...

Introduction: The low regeneration of bone in defective bones causes therapeutic problems. Various strategies to assess the healing of bone defects have been used which they include histological and histo-chemical analysis in an invasive study. The purpose of this study was to determine the ultrasonic parameters of bone as a promising noninvasive technology for assessing bone repair process. Ma...

The goal of model based diagnosis is to iso late causes of anomalous system behavior and recommend cost e ective repair actions In general precomputing optimal repair policies is intractable To date investigators address ing this problem have explored approxima tions that either impose restrictions on the system model such as a single fault assump tion or that compute an immediate best ac tion ...

purpose : the goal of this study was evaluation of the incidence rate of posttraumatic endophthalmitis, its clinical features and probable risk factors in repaired open globe injuries. methods : in this retrospective case series, surgical and medical records of 600 patients with open globe injury were reviewed. patients who underwent primary repair (as soon as possible) in khatam-al-anbia eye h...

BACKGROUND Treatment of abdominal aortic aneurysm (AAA) has changed significantly over the past 2 decades. In this perspective, time trends in long-term survival were studied. METHODS AND RESULTS We identified 8663 primary intact and 4171 ruptured AAA repairs in the Swedish Vascular Registry from 1987 to 2005. Mortality was obtained from the national population registry. Crude survival was an...

A distributor segment has failure rate and repair time which decide mean up time (MUT) and mean down time (MDT). Usually the reliability analysis is based on exponential failure and repair laws. Certain values of repair times are smaller which may be neglected. This is known as repair time omission. Omitted repair time may be fixed. Repair time omitted in turn will affect the basic reliability ...

Achieving joint objectives by teams of cooperative planning agents requires significant coordination and communication efforts. For a single-agent system facing a plan failure in a dynamic environment, arguably, attempts to repair the failed plan in general do not straightforwardly bring any benefit in terms of time complexity. However, in multi-agent settings the communication complexity might...

The 40th International Symposium of the Princess Takamatsu Cancer Research Fund, entitled "DNA Repair and Human Cancers," was held on November 10-12, 2009 at Hotel Grand Palace, Tokyo, Japan. The meeting focused on the role of DNA repair in preventing mutations by endogenous and exogenous DNA damage and increasing the efficacy of chemotherapeutic agents by interfering with DNA repair. The 14 pr...

In order to examine radiation-induced proteins in an extremely radio-resistant bacterium, it became possibleto perform comparative proteomic analysis on radio-resistance Bacillus megaterium WHO as a wildtypestrain for the first time. Variation in cellular proteins profiles of the Bacillus megaterium WHO after 5KGy γ-irradiation were analyzed by two-dimensional poly acryl amide...

In this paper, the authors present new indices for estimating technical change, return to scale, and TFP growth, as well as its decomposition. These indices, Modified General Index (MGI), Generalized Modified General Index (GMGI), and General Time Trend index (GTTI), are generalization of General Index approaches. These approaches were used for productivity decomposition of Iran's barely produc...