The physical properties of bovine prothrombin preparations have been described in this journal (1). Although methods for obtaining bovine thrombin are now also available (a), the physical properties, including the molecular weight, have not been described. Here we report values for the sedimentation coefficient, diffusion coefficient, intrinsic viscosity, frictional ratio, molecular weight, and...

The physicochemical properties of bovine prothrombin and of bovine thrombin were previously described in this journal (1, 2). A derivative of bovine prothrombin, autoprothrombin II, has now been obtained in sufficient quality and quantity for study. In this report we describe some of the physicochemical properties of our product, including sedimentation coefficient, diffusion coefficient, intri...

T he objective of this study is using the Markov Switching Vector Autoregressive method and regime dependent impulse response functions to measure the pass-through of world food prices to consumer price index in Iran from 1990 to 2013. With respect to information criteria and the log-likelihood ratio statistic, MSIA(2)-VAR(1) model has a better fit to data than other models. The magn...

Background: In food industry, carotenoids are used as food colorants conferring yellow to red color. This research was designed to study on lipid and β-carotene production by Rhodosporidium diobovatum cultured with different Carbon to Nitrogen (C/N) ratios. Methods: R. diobovatum was cultured in a medium containing 40 g/l glucose (as the carbon source) and different C/N ratios (20, 50, and 80)...

This experiment was conducted in attempt of improving hydrodynamic efficiency of the propulsion mechanism by installing a spring to the wing so that the opening angle of the wing in one stroke can be changed automatically, compared to the existing method of fixed maximum opening angle in Weis-Fogh type ship propulsion mechanism. Average thrust coefficient was almost fixed with all velocity rati...

The point estimation of the ratio of variance components and the intraclass correlation coefficient for the unbalanced one way random effects model are considered. ANOVA, REML, ML, MIVQUE, MINQE type, and MU (median unbiased) estimators are compared with respect to their absolute biases and mean squared errors through a simulation study. Explicit, computable expressions with no matrix inversion...