نتایج جستجو برای: rexillium iii
تعداد نتایج: 258604 فیلتر نتایج به سال:
The equilibrium reactions of the metallochromic indicator dye Antipyrylazo III with calcium at physiological ionic strength have been investigated spectrophotometrically. Dye absorbance as a function of wavelength was measured at various total dye and calcium concentrations. Analysis of the absorbance spectra indicated that at pH 6.9 at least three calcium:dye complexes form, with 1:1, 1:2, and...
Tiling microarrays have proven to be a valuable tool for gaining insights into the transcriptomes of microbial organisms grown under various nutritional or stress conditions. Here, we describe the use of such an array, constructed at the level of 20 nt resolution for the Escherichia coli MG1655 genome, to observe genome-wide changes in the steady-state RNA levels in mutants defective in either ...
Despite the fact that there have been many reports on benzodiazepine (BZD) dependence, consensus about its definition has not been reached. Reliable prevalence data to estimate the dependence liability of BZDs are therefore lacking. This study is the first to assess the prevalence of BZD dependence in out-patient BZD users (115-general practice (GP) patients, 124 psychiatric out-patients and 33...
H-Point Standard Addition Method (HPSAM) was applied for the simultaneous determination of V(V) and Fe(III). The method is based on the complex formation of V(V) and Fe(III) with chromazurol S (CAS) in acidic media and in the presence of cetyltrimethylammonium bromide (CTAB) as a micellizing agent. Acidic media and the presence of a micellar system improve selectivity and sensitivity. Fe (I...
در این پژوهش عامل کمپلکس¬دهنده آلفاآمینوفسفوناتی با استفاده از روش پیوند زدن طی دو مرحله بر روی بستر نانو سیلیکا جهت جداسازی گزینشی یون¬های فلزی تثبیت شد. ساختار و خواص فیزیکی و شیمیایی آن توسط طیف¬بینی مادون قرمز، حرارت¬سنجی، تخلخل¬سنجی، طیف¬سنجی رزونانس مغناطیسی هسته¬ای، آنالیز عنصری، طیف سنجی پراش پرتو ایکس، میکروسکوپ الکترونی روبشی و میکروسکوپ الکترونی عبوری مورد بررسی قرار گرفت. بررسی حذف ...
توسعه روش های محاسباتی امکان مطالعه سیستم های مختلف با دقت کافی را فراهم ساخته است. در این پژوهش با استفاده از محاسبات تئوری تابع دانسیته dft، مکانیسم انعطاف پذیری لیگاندهای سیکلوپنتادی انیل وایندنیل درکمپلکس های (?5-c5h5)fe(co)2(?1-c5h5)(i)،(?5-c5h5)fe(co)2(?1-indenyl)(ii)و (?5-indenyl)fe(co)2(?1-indenyl) (iii) برای بررسی دقیق این مکانیسم به موارد ذیل پرداخته شد. 1) جابه جایی 5و1 در کمپلکس...
We identified a novel mechanism of hereditary thrombosis associated with antithrombin resistance, with a substitution of arginine for leucine at position 596 (p.Arg596Leu) in the gene encoding prothrombin (called prothrombin Yukuhashi). The mutant prothrombin had moderately lower activity than wild-type prothrombin in clotting assays, but the formation of thrombin-antithrombin complex was subst...
It is widely acknowledged that the approach taken in the development of a classification of mental disorders is guided by various values and assumptions. The author, who played a central role in the development of DSM-III (American Psychiatric Association [1980] Diagnostic and statistical manual of mental disorders, 3rd ed. Washington, DC:Author) and DSM-III-R (American Psychiatric Association ...
The presence of an antithrombin in normal plasma and serum has been known for many years. In 1892 Schmidt postulated its existence when he observed the rapid disappearance of thrombin from blood after coagulation. Tests have been devised enabling the titre of antithrombin to be determined. Most of these tests depend on the inactivation of serial dilutions of thrombin of known concentration by t...
Insect lipoprotein termed as apolipophorin III (apoLp-III), has a unique five-helix bundle protein structure. The protein is used by insects to supply high supply of energy to their flight muscles (wings) during unstopped long-distance migration. However, it is not clear why compared to most prominent four-helix bundle protein structure found in nature, apoLp-III has five helix bundles. This re...
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