Introduction: The forced expiratory flow at 25 and 75% of the pulmonary volume/forced vital capacity ratio (FEF25-75/FVC) as a spirometry parameter has been successful in the early diagnosis of chronic obstructive pulmonary disease (COPD) and the methacholine challenge test for assessing airway responsiveness.To determine the accuracy of FEF25-7...

The use of the V79-4 system as a primary screen for fiber carcinogenicity is dependent on the observed correlation between cytotoxicity of the test material in the system and mesothelioma following intrapleural injection in animals. This correlation has been established for relatively pure samples of fibrous minerals. The wider application of the system as a screen for industrial dusts may depe...

In the present study, five modeling approaches of RA, MLP, MNN, GFF, and CANFIS were applied so as to estimate the radial overcut values in electrochemical drilling process. For these models, four input variables, namely electrolyte concentration, voltage, initial machining gap, and tool feed rate, were selected. The developed models were evaluated in terms of their prediction capability with m...

The aim of this work is twofold. First, we survey the techniques developed in Perthame and Zubelli (Inverse Probl 23(3):1037-1052, 2007), Doumic et al. (Inverse Probl 25, 2009) to reconstruct the division (birth) rate from the cell volume distribution data in certain structured population structured population models. Secondly, we implement such techniques on experimental cell volume distributi...

Address correspondence to: Shibnath Ghatak, Regenerative Medicine and Cell Biology Anatomy and Division of Rheumatology and Immunology (Department of Medicine), Medical University of South Carolina, 171 Ashley Avenue, Charleston, South Carolina 29425; Tel.: 843-792-8642; Fax: 843792-0664; E-mail: [email protected], or Suniti Misra, Regenerative Medicine and Cell Biology Anatomy and Division of Rh...

o bjectives: to evaluate the accuracy of sonography in diagnosing acute appendicitis in patients with alvarado score 4–7. m e thods: this is a retrospective cross-sectional study being performed in namazee hospital affiliated with shiraz university of medical sciences during a one year period from 9/2007 to 9/2008. we evaluated all patients with alvarado score 4-7 and divided them in two groups...

The astrometric calibration of the Sloan Digital Sky Survey is described. For point sources brighter than r ∼ 20 the astrometric accuracy is 45 milliarcseconds (mas) rms per coordinate when reduced against the USNO CCD Astrograph Catalog, and 75 mas rms when reduced against Tycho-2, with an additional 20 – 30 mas systematic error in both cases. The rms errors are dominated by anomalous refracti...