the present review classifies and describes the multifactorial causes of anterior cruciate ligament (acl) surgery failure, concentrating on preventing and resolving such situations. the article particularly focuses on those causes that require acl revision due to recurrent instability, without neglecting those that affect function or produce persistent pain. although primary acl reconstruction ...

Introduction: Along with advances occurring in cardiopulmonary bypass (CPB) including improved anesthesia intubation and early surgical interventions, it has become possible to correct life-threatening congenital heart anatomic abnormalities in patients. Our study aimed to collect information from one of the most important centers of pediatric cardiac surgery in Iran since there is limited info...

Increasing design complexity in sub-90nm designs results in increased mask complexity and cost. Resolution enhancement techniques (RET) such as assist feature addition, phase shifting (attenuated PSM) and aggressive optical proximity correction (OPC) help in preserving feature fidelity in silicon but increase mask complexity and cost. Data volume increase with rise in mask complexity is becomin...

Abstract The present study was an attempt to investigate the relationship between EFL learners’ anxiety and writing complexity. For the purpose of the study, 70 female learners, between 17 and 24 years old (mean=20) from Najm language school in Tehran participated in the study. The participants’ level of anxiety was measured using Horwitz, Horwitz, and Cope’s Anxiety Questionnaire (1986) and th...

Tremendous efforts have been devoted to study the complex phenomenon "knock in spark ignition engines. There is an increasing interest in providing some tools to study knock in simulated data. In the previous studies, engine cylinder pressure oscillation has been used to investigate knock. Unless those methods involved highly complex non-detailed chemical relations, the previous studies were de...

The term Globalization undoubtedly has affected all parts of humanity life in current century. Globalization as a comprehensive phenomenon has influenced economical, political, social and cultural aspects of our societies. Contemporary architecture as a multidimensional category is depended on various factors and needs to be pursued in different fields, in order to reach to a perfect comprehend...

Background: The virtual rise of blood pressure resulted from stress, that is observed in subjects that are tested in medical centers, can be oftenly corrected by holter. This phenomenon causes such persons not to response to the common anti blood pressure treatments (2). Materials and methods: This descriptive study was conducted 2006-2007 at the heart clinic of Shohadaye–Ashayer hospital in Kh...

In the present research, the primary crystallization kinetics of the amorphous Fe85.3B11P3Cu0.7 alloy was analyzed using non-isothermal DSC measurements. The average and local activation energies, Ea, were determined by different isokinetic and isoconversional methods. The results obtained for activation energy in this research, show that due to the complexity of the primary crystallization pro...