We study two and three-point tree-level amplitudes of open strings. These are reduced from higher-point correlation functions by using mostly BRST exact operators for gauge fixing. For simplicity, we focus on an string tachyon. The two-point amplitude tachyons is a function tachyon vertex one operator. Similarly the four-point three One can also obtain operators. In these derivation functions, ...

A number of physical factors can adversely affect cultural heritage. Therefore, monitoring parameters involved in the deterioration process, principally temperature and relative humidity, is useful for preventive conservation. In this study, a total of 15 microclimate stations using open source hardware were developed and stationed at the Mosque-Cathedral of Córdoba, which is registered with UN...

Recent reports have suggested that a delay in the management of type-III supracondylar fractures of the humerus does not affect the outcome. In this retrospective study we examined whether the timing of surgery affected peri-operative complications, or the need for open reduction. There were 171 children with a closed type-III supracondylar fracture of the humerus and no vascular compromise in ...

PURPOSE To assess the level of plasma glutathione in patients with untreated primary open-angle glaucoma. METHODS Twenty-one patients with newly diagnosed primary open-angle glaucoma and 34 age- and gender-matched control subjects were subjected to a blood analysis to detect the level of circulating glutathione in its reduced and oxidized forms. The effect of age, gender, and systemic blood p...

ABSTRACT Introduction: In areas where intraoperative radiography facilities are not available, open reduction is an acceptable treatment option for fracture treatment. The aim of this investigation was to compare the outcomes of closed reduction to open reduction with cross-pinning fixation in Gartland Type III supracondylar humeral fracture extensions. Methods: In this retrospective study, clo...

The purpose of this retrospective study was to examine pediatric supracondylar humerus fractures at a Level I trauma center. Data were analyzed to identify risk factors associated with closed reduction failure. Closed pediatric supracondylar humerus fractures that were treated at the authors' trauma center between October 1997 and January 2009 were reviewed. The main outcome variable was necess...

The surgical management of patients with neglected developmental dysplasia of the hip (DDH) after the age of 6 years has been the subject of controversy. We present 11 cases (16 hips) of neglected DDH that were treated operatively by means of open reduction and derotational subtrochanteric osteotomy. Patient age ranged between 10 and 17 years (mean, 12 years). Follow-up ranged from 5 to 13 year...

BACKGROUND Clinical guidelines from the National Institute for Health and Clinical Excellence recommend the use of an intramedullary nail for the treatment of subtrochanteric fractures.1 Reverse oblique fractures are associated with varus malunion,2 which defunctions the abductors by placing them at a mechanical disadvantage and increases the lever arm across the fracture. Most modern nails hav...