â â â  â â â  abstract â  using a structural var with block exogeneity, diagonality and identifying restrictions, this paper analyzes: first, the macroeconomic linkages among the oil price, u.s. output, interest rate, money supply, general price level and exchange rate and second, the relationships of the macroeconomic variables with the price indices of ten international nonfuel commodity grou...

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A one-parameter symplectic group {e}t∈R derives proper canonical transformations on a Boson Fock space. It has been known that the unitary operator Ut implementing such a proper canonical transformation gives a projective unitary representation of {e}t∈R and that Ut can be expressed as a normal-ordered form. We rigorously derive the self-adjoint operator ∆(Â) and a phase factor e i ∫ t 0 τ Â (s...

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 A model is developed for separation of multicomponent gas mixtures in a countercurrent hollow fiber membrane module. While the model’s solution in countercurrent module usually involves in a time consuming iterative procedure, a proper initial guess is proposed for beginning the calculation and a simple procedure is introduced for correcting the guesses, hereby the CPU time is decreased ess...

â â â  â  zahra zamani [1] â â  seyed komail tayebi â  department of economics, university of isfahan, iran â â department of economics, university of isfahan, iran â â â  abstract â  international trade causes that markets to become more competitive and small-medium sized enterprises (smes) learn to compete effectively within this increasingly competitive global market place. smes are able to ...

â â â  the exemplification in explanations of ibn-e-malek`s alfiyya: â  exemplification in ibn-e-aqil and soyutyi â â â â â  * elahe safian â  * * sayyed mohammad reza ibnerasool â â â  abstract â  in this article, the authors after an introduction of exemplification in therabic syntax generally try to have a comparative survey on the exemplification in explanations of two famous ibn-e-malek al...

one mineral density measurements are useful for predicting the risk of fracture in an individual, for assessing the effect of a disease or drug on bone mass, and for monitoring the effect of therapy of osteoporosis. For the hip and spine, measurements made at the affected site discriminate better between fragility fractures and nonfracture cases than do measure ments made on other parts of the ...

We used flow cytometry to measure the expression of human mela noma antigens on cell suspensions dissociated from metastatic masses. The objective was to study the heterogeneity between tumor samples from different patients and between different tumors excised from a single patient. Fifty-three métastasesexcised from 34 melanoma patients »ere analyzed with a panel of nine murine monoclonal an...