نتایج جستجو برای: لیگاندهای چهاردندانه ای نوع n4
تعداد نتایج: 324842 فیلتر نتایج به سال:
The following metabolites of sulfadiazine (S) were isolated from monkey urine by preparative HPLC: 5-hydroxysulfadiazine (5OH), 4-hydroxysulfadiazine (4OH) and the glucuronide (5OHgluc) and sulfate conjugate of 5OH (5OHsulf). The compounds were identified by NMR, mass and infrared spectrometry and hydrolysis by beta-glucuronidase. The analysis of S, the hydroxymetabolites (4OH, 5OH) and conjuga...
استهدف البحث الحالي تقصي الفروق في القدرة على حل المشكلات لدى طلاب المرحلة الثانوية تبعاً لبعض المتغيرات الديمغرافية (النوع – التخصص الدراسي نوع المدرسة)،
We report the redshift measurement for the submillimeter selected galaxy SMMJ04431+0210 (N4) using the Near Infrared Spectrograph on the Keck II telescope. The data show Hα, [NII] 6583,6548, and [OIII] 5007 lines at a redshift of z = 2.51. The high nuclear [NII]/Hα line ratio is consistent with a LINER or Type-II AGN. The Hα emission is spatially resolved, suggesting the presence of significant...
We show, with an elementary proof, that the number of halving simplices in a set of n points in R4 in general position is O(n4−2/45). This improves the previous bound of O(n4−1/13 4 ). Our main new ingredient is a bound on the maximum number of halving simplices intersecting a fixed 2-plane.
H and C NMR spectra of allyl isothiocyanate (AITC) were measured, and the exchange dynamics were studied to explain the near-silence of the ITC carbon in C NMR spectra. The dihedral angles α = ∠(C1−C2−C3−N4) and β = ∠(C2−C3−N4−C5) describe the conformational dynamics (conformation change), and the bond angles γ = ∠(C3−N4−C5) and ε = ∠(N4−C5−S6) dominate the molecular dynamics (conformer flexibi...
In this paper we study the ergodicity of the queueing network system with two stations and N classes ”N is a multiple of 4” with (N4 − 1) feedbacks at the first station and N4 feedbacks at the second one under the FIFO policy and the usual conditions ρ1 = m1 + N ∑
An (nk) configuration is a collection of points and straight lines, usually in the Euclidean plane, so that each point lies on k lines and each line passes through k points; such a configuration will be called symmetric if it possesses non-trivial geometric symmetry. Although examples of symmetric (n3) configurations with continuous parameters are known, to this point, all known connected infin...
We announce the complete genome sequence of a lytic podovirus, ΦCB2047-B, which infects the bacterium Sulfitobacter sp. strain 2047, a member of the Roseobacter clade. Genome analysis revealed ΦCB2047-B to be an N4-like phage, with its genome having high nucleotide similarity to other N4-like roseophage genomes.
گروه های کربوکسامیدی جزء ساختارهای اولیه موجود در پروتئین ها بوده و به عنوان یک لیگاند مهم در شیمی کئوردیناسیون کاربرد دارند. همچنین کربوکسامیدها دارای فعالیت های ضد سرطانی می باشند. چندین کاربرد مهم بیولوژیکی و صنعتی برای ترکیبات با ساختار آمیدی مانند تهیه داروها (پنی سیلین و فولیک اسید) و صنایع رنگی (رنگ ایندیگو) شناخته شده است. از طرف دیگر اخیراً توجه زیادی به سنتز و مطالعه لیگاندهای بازشیف ...
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