abstract   background: different methods of surgical treatment for acromioclavicular(ac) joint injury were considered in the literature. the purpose of the study was to compare intra- articular ac repair technique with the extra-articular coracoclavicular repair technique for the patients with rockwood type iii and vac joint injury when indicated.   methods: nineteen consecutive patients with r...

obviously, learning environment plays a crucial role in how second language or a foreign language is learned. in this regard, the importance of interaction for l2 learning has been emphasized. the current study investigated teachers' interactional moves (im) and learners' uptake in efl classrooms systematically. to meet this end, four efl contexts of speaking and listening courses for...

obviously, learning environment plays a crucial role in how second language or a foreign language is learned. in this regard, the importance of interaction for l2 learning has been emphasized. the current study investigated teachers' interactional moves (im) and learners' uptake in efl classrooms systematically. to meet this end, four efl contexts of speaking and listening courses for english m...

introduction: perforations of the pulpal floor create problems during endodontic treatment and often results in secondary periodontal involvement with eventual loss of teeth. the purpose of this study was to evaluate the ability of mineral trioxide aggregate (mta), amalgam, zinc oxide and eugenol (zoe) and portland cement to seal furcal perforations in extracted human molars using dye penetrati...

in this case report, we described a 74-year-old female patient with major complaint of respiratory problemsdyspnea after meal. chest x-ray of the patient revealed a  gianttype iv hiatal hernia. preoperative evaluations of the patient included esophagoscopy, esophageal manometry, barium swallow, and ct-scan. repair of the hernia was performed using a dual mesh on the diaphragm and partial anteri...

objective(s): coronary artery disease (cad) is the leading cause of death in both male and female worldwide. the main cause of cad is the atherosclerosis of coronary arteries, which is, mostly caused by genetic alteration. 50% of such cases occur in mitotic cells where single-strand breaks occur spontaneously or due to ionizing radiation. x-ray repair cross-complementing protein 1 (xrcc1) as a ...

among the lesions induced by chemotherapeutic drugs, dna double-strand breaks (dsb) are considered the most serious ones that can result in cell death, if it is not properly repaired. homologous recombination (hr) pathway is the main system for dsb repair and xrcc3 has a key role in this pathway. protein activity can be affected by the xrcc3 polymorphism. thus, in this study, the association be...