نتایج جستجو برای: n 21

تعداد نتایج: 1183385  

Journal: :The Journal of antibiotics 1982
K Takahashi K Yazawa K Kishi Y Mikami T Arai A Kubo

25-Dihydrosaframycin A(AR1) and 21-decyano-25-dihydrosaframycin A(AR3) were produced by the microbial conversion of saframycin A(SA). Efficient conversion of SA to AR, and AR3 was observed with Rhodococcus amidophifus IFM 144. Though the antimicrobial activity of AR, was one tenth that of SA, the in vitro antitumor activity of AR1 was found to be equivalent to that of SA. In contrast, AR, was b...

Journal: :The Journal of biological chemistry 1968
C S Furfine A White

An enzyme that catalyzes the reduction of Il-dehydrosteroids has been purified approximately 250-fold from acetone powder extracts of bovine adrenal glands. The reaction is specific for DPNH, but no structural requirements of substrate other than the steroid nucleus were evident. Steroids are competitive inhibitors with respect to 21-dehydrocortisol reduction. The reaction catalyzed was shown t...

2017
Blair M. Segsworth AJ Anstett Rachael Thomas

............................................................................................................... ii Acknowledgments ................................................................................................ ii Table of

ژورنال: :فصلنامه مطالعات راهبردی 2006
محمود کلاهچیان

عصر اطلاعات دربرگیرندة تغییرات و ایجاد شکاف های اساسی در تعبیر اطلاعات استراتژیک می باشد. هرچند نقش اطلاعات استراتژیک را می توان با مقوله ای به نام تصمیم مشخص کرد و رویکرد آینده محوری در تصمیمات استراتژیک شرط حیات استراتژی ها می باشد؛ اما کارکرد آن دو وجه مستقیم را دربرمی گیرد: اول شناخت و برآورد همه خبرهای اطلاعاتی که به وضع کنونی مربوط می شود و دوم دریافت، تحلیل، نتیجه گیری و تولید اطلاعات که...

Journal: :Journal of neurophysiology 2001
J W Bisley D Zaksas T Pasternak

We applied electrical stimulation to physiologically identified sites in macaque middle temporal area (MT) to examine its role in short-term storage of recently encoded information about stimulus motion. We used a behavioral task in which monkeys compared the directions of two moving random-dot stimuli, sample and test, separated by a 1.5-s delay. Four sample directions were used for each site,...

2012
Harald Oberhofer Matthias Stöckl Hannes Winner

We provide evidence on the impact of globalization on labor market outcomes analyzing pay differences between foreign-acquired and domestically-owned firms. For this purpose, we use firm level data from 16 European countries over the time period 1999–2006. Applying propensity score matching techniques we estimate positive wage premia of cross-boarder merger and acquisitions (M&As), suggesting t...

Journal: :Journal of medical genetics 1979
A Daniel

A prenatally diagnosed male fetus and his mother, who was referred because of her advanced age, both carried an abnormal bisatellited chromosome 21 as an extra chromosome. The abnormal 21 was monocentric and the G negative band q22 and part of q21 had been deleted during formation. The phenotype of both the mother and child (at birth) was normal.

2012
H. Krause D. H. Sutter

The 1 N hyperfine multiplets of low-7 rotational transitions of the E and Z isomers of HN = CH — C = N, produced by flash pyrolysis from (CH 3 ) 2N —C = N as precursor, were observed and analysed. The quadrupole coupling constants determined are (c-axis perpendicular to the molecular plane): , Xaa/MHz XJUWz XJUHz E H — N = CH — C = N -4 .160(10) +1.658(31) +2.502(31) E H N = C H C = N +0.764(11...

A pseudo-complement of a quadrilateral D of order n, n, > 3, is a non-trivial (n+l)- regular linear space with n - 3n + 3 points and n + n - 3 lines. We prove that if n > 18 and D has at least one line of size n - 1, or if n > 25 , then the set of lines of D consists of three lines of size n -1, 6(n - 2) lines of size n - 2, and n - 5n + 6 lines of size n - 3. Furthermore, if n > 21 and D...

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