نتایج جستجو برای: ca2 269
تعداد نتایج: 55279 فیلتر نتایج به سال:
The gas chromatography-mass spectrometry technique was employed to characterize n-decane oxidation products of Corynebacterium strains 7E1C and 269 (SNAM Progetti collection) after 73 h of incubation at 35 C. Corynebacterium 7E1C accumulated consistent amounts of esters of long chain acids with long chain alcohols, mainly decyldecanoate as well as products with mono- and diterminal carboxylic f...
واکنش های تشکیل کمپلکس بین کاتیونهای mg2+ و ca+2 و sr+2 و ba+2 با -18کرون -6 (18c6) در مخلوطهای دو جزئی متانول - آب (meoh/h2o) و همچنین کمپلکسه شدن کاتیونهای ca2+ و sr2+ با این لیگاند در مخلوطهای دوتایی اتانول - آب (etoh/h2o) در دماهای مختلف به روش هدایت سنجی مورد بررسی قرار گرفتند. داده های هدایت سنجی نشان می دهند که کمپلکس های ایجاد شده بین لیگاند 18c6 و کاتیونهای مورد مطالعه دارای استوکیومتر...
Mechanosensory transduction (MST) in proprioceptors, and other low threshold mechanosensory nerve terminals (LTMT), has been debated intensely for decades. MST muscle spindles produces a receptor potential that encodes stimulus speed duration, is predominantly due to Na+, little Ca2+, plus some transient, non-mechanically-gated K+ ion fluxes. The abundant, multiple Na+-selective DEG/ENaC channe...
The results of experimental studies on the phase formation CaAl2O4 (CA) and CaAl4O7 (CA2) from CaCO3-Al2O3 powder mixtures in temperature range 1250 - 1450 ° C ate presented. In order to calculate content raw materials charge, criterion obtaining high-alumina clinker with Al2O3 71 72 wt. % CaO 27 28 wt.% is proceeded. This mass ratio system state diagram suggests presence two calcium-aluminate ...
ion channels are responsible for control of cell function in excitable tissues such as heart and brain and also in organs and tissues traditionally thought to be non- excitable including liver and epithelium. in the present research, the effect of lead (pb2+) on ca2+ -dependent action potential and currents was studied in f77 neuronal soma membrane of helix aspersa. for this purpose, action pot...
the complexation reactions between mg2+, ca2+, sr2+ and ba2+ metal cations with 15-crown-5 (15c5) were studied in acetonitrile (an)-methanol (meoh) binary mixtures at different temperatures using conductometric method. 15c54 forms 1:1 complexes with mg2+, ca2+ and sr2+ cations in solutions. the ma2+ cation forms a 2:1 complex (ratio of lighand to cation) in solutions. a linear relation was obse...
Geoffrey Davenport, Ian McDonald and Caroline Moss-Gibbons, The Royal College of Physicians and its collections: an illustrated history, London, Royal College of Physicians, 2001, pp. 168, illus., UK £38.00, overseas £45.00 (hardback 0-907-383-831). Michael Dunnill, The Plato of Praed Street: the life and times of Almroth Wright, London, Royal Society of Medicine Press, 2000, pp. xiii, 269, ill...
The Rockefeller University Press $30.00 J. Cell Biol. Vol. 186 No. 2 269–282 www.jcb.org/cgi/doi/10.1083/jcb.200901021 JCB 269 Correspondence to Michael J. Caplan: [email protected] Abbreviations used in this paper: BG, benzylguanine; CHX, cycloheximide; E-cadherin, epithelial cadherin; LDLR, low density lipoprotein receptor; PGTI, postGolgi transport intermediate; PM, plasma membrane; RE...
We prove that, for any irrational number α, there are infinitely many primes p such that ‖αp‖ < p−1/3+ . Here ‖y‖ denotes the distance from y to the nearest integer. The proof uses Harman’s sieve method with arithmetical information coming from bounds for averages of Kloosterman sums.
An etiological study of sexually transmitted infections (STIs) was conducted among female sex workers (FSWs) in Dhaka, Bangladesh. Endocervical swab and blood samples from 269 street-based FSWs were examined for Neisseria gonorrhoeae, Chlamydia trachomatis, and Trichomonas vaginalis as well as for antibodies to Treponema pallidum and herpes simplex virus 2 (HSV-2). Sociodemographic data and dat...
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