background inguinal hernia is the most prevalent surgical disease in clinical practice. endoscopic inguinal hernia repair has been shown to be slightly superior to open approaches. recent modifications in the minilaparoscopic technique may improve the totally extraperitoneal repair (tep) results. objectives we have performed a prospective study to analyze the feasibility of laparoscopic inguina...

In this article, we survey machine repair problems (MRP) with an emphasis on historical developments of queuing models of practical importance. The survey proceeds historically, starting with developments in 1985, when the first published review on machine interference models appeared. We attempt to elaborate some basic MRP models of the real life congestion situations. The brief survey of some...

welding is one of the most important assembling methods which are widely applied in different applications. in service conditions, some of the weld joints which meet defects must be repaired. the residual stresses impress the operation and efficiency of the repair weldment. in this study, the temperature and the residual stress fields were investigated by both the finite element simulation and ...

DNA is subjected to many endogenous and exogenous damages. All organisms have developed a complex network of DNA repair mechanisms. A variety of different DNA repair pathways have been reported: direct reversal, base excision repair, nucleotide excision repair, mismatch repair, and recombination repair pathways. Recent studies of the fundamental mechanisms for DNA repair processes have revealed...

Background: Radiotherapy is an effective and important therapeutic method for breast cancer, but at the same time it has a radiation-induced bystander effect on normal tissue around the tumor. Repair of double-strand breaks (DSBs) by normal cells can reduce the extent of damage caused by this effect. Caveolin-1 (Cav-1) is an important regulatory molecule in cell signal transduction. However, th...

This investigation deals with M/M/R/N machine repair problem with R non-reliable service stations which are subjected to unpredictable breakdown. 1here is provision of an additional server to reduce backlog in the case of heavy load of failed machines. 1he permanent service stations repair the failed machines at an identical rate m and switch to faster repair rate when all service stations are ...

introduction with the growing popularity of totally extraperitoneal (tep) laparoscopic inguinal hernia repair, many surgeons will inevitably face the clinical conundrum of how to simultaneously repair an umbilical hernia and an inguinal hernia via tep approach. case presentation in this case report, we describe the successful use of the umbilical hernia defect to insert the balloon dissector an...

  Abstract   Background: Despite being the largest rotator cuff tendon of the shoulder, the   function and clinical relevance of subscapularis pathology has been largely ignored   in the literature. Although many studies have focused on subscapularis tears recently,   majority of them reported techniques for open repair. The advent of arthroscopy and   arthroscopic repair techniques has opened ...

Background: Impaired DNA repair mechanism is one of the main causes of tumor genesis. Study of intrinsic radiosensitivity of cancer patients in a non-target tissue (e.g. peripheral blood) might show the extent of DNA repair deficiency of cells in affected individuals and might be used a predictor of cancer predisposition. Methods: Initial radiation-induced DNA damage (ratio of Tail DNA/Head DN...