نتایج جستجو برای: py nigeriensis

تعداد نتایج: 3644  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم پایه 1391

لیگاند های سه دندانه ای جدید از نوع بای پیریدین l1=[(3-py)–ch2–n=ch–(2-py)] و l2=[(3-py)–ch2–n=ch–(4-py)] به وسیله تراکم باز شیف تهیه شدند. سپس لیگاند l?1=[(3-py)–ch2–nh–ch2–(2-py)] به وسیله احیا شدن لیگاند اولیه l1 به دست آمد. یکسری ابرمولکول های بسته ای جدید [znl1(no3)2]2، [cdl1(no3)2]2، [cul1(no3)2]2، [cul1cl2]2 و [cd(l1?)(no3)2]2 و پلیمر کوئوردیناسیونی [hgl1cl2]n با لیگاند های l1 و l?1سنت...

2010
Constantinos G. Efthymiou Vassilios Nastopoulos Catherine Raptopoulou Anastasios Tasiopoulos Spyros P. Perlepes Constantina Papatriantafyllopoulou

The reactions of methyl(2-pyridyl)ketone oxime, (py)C(Me)NOH, with manganese(II) sulfate monohydrate have been investigated. The reaction between equimolar quantities of MnSO(4) . H(2)O and (py)C(Me)NOH in H(2)O lead to the dinuclear complex [Mn(2)(SO(4))(2){(py)C(Me)NOH}(4)] . (py)C(Me)NOH, 1 . (py)C(Me)NOH, while employment of NaOMe as base affords the compound [Mn(HCO(2))(2){(py)C(Me)NOH}(2)...

Journal: :Science 2012

Journal: :Inorganic chemistry 2011
Olga Crespo M Concepción Gimeno Antonio Laguna Fernando J Lahoz Carmen Larraz

The reaction of [AuCl(P-N)], in which P-N represents a heterofunctional phosphine ligand, with pentafluorothiophenol, HSC(6)F(5), gives the thiolate gold derivatives [Au(SC(6)F(5))(P-N)] (P-N = PPh(2)py (1), PPh(2)CH(2)CH(2)py (2), or PPhpy(2) (3)). Complex [Au(SC(6)F(5))(PPh(2)py)] (1) reacts with [Au(OTf)(PPh(2)py)] in a 1:1 or 1:2 molar ratio to afford the di- or trinuclear species [Au(2)(μ-...

2017
Nilamani Behera Ankit Kumar Sujeet Chaudhary Dinesh K. Pandya

The prime requirements for the spin transfer torque based ferromagnetic (FM)/nonmagnetic (NM) bilayer spin devices are (i) the absence of two-magnon scattering (TMS) noise, (ii) minimum energy dissipation and (iii) fast switching. To realize these objectives we have studied the thickness, Py (permalloy) thicknesses (tPy) and b-Ta thicknesses (tTa), dependent magnetization dynamics behaviour of ...

Journal: :The Journal of Cell Biology 1993
L P Baker H B Peng

Aggregation of the nicotinic acetylcholine receptor (AChR) at sites of nerve-muscle contact is one of the earliest events to occur during the development of the neuromuscular junction. The stimulus presented to the muscle by nerve and the mechanisms underlying postsynaptic differentiation are not known. The purpose of this study was to examine the distribution of phosphotyrosine (PY)-containing...

Journal: :General physiology and biophysics 1989
E Palecek A Krejcová M Vojtísková V Podgorodnichenko T Ilyina A Poverennyi

It has previously been shown that osmium tetroxide, pyridine (Os,py) and osmium tetroxide, 2,2'-bipyridine (Os,bipy) are powerful probes of the DNA structure. To increase the possibilities of the detection of osmium-modified DNAs polyclonal antibodies against DNA modified with Os,py and Os,bipy were elicited in rabbits. Specificity of these sera or purified IgG was tested by ELISA and retardati...

Elmira Ghamari Lida Sarchami Mir Mohammad Alavi Nikje Seyedeh Leila Rahmani Andabil

In this research, the chemical recycling of terephthalic acid from PET waste by using nano Fe3O4@Py-APTS as solid support was reported. The performance of organically modified nano magnetic was examined in detail and the results were compared with unsupported reactions as the model. By using the solid support, the required time for complete glycolysis, consumption of solvent and catalyst, decre...

Journal: :Journal of virology 2007
St Patrick Reid Charalampos Valmas Osvaldo Martinez Freddy Mauricio Sanchez Christopher F Basler

The Zaire ebolavirus protein VP24 was previously demonstrated to inhibit alpha/beta interferon (IFN-alpha/beta)- and IFN-gamma-induced nuclear accumulation of tyrosine-phosphorylated STAT1 (PY-STAT1) and to inhibit IFN-alpha/beta- and IFN-gamma-induced gene expression. These properties correlated with the ability of VP24 to interact with the nuclear localization signal receptor for PY-STAT1, ka...

Journal: :The Journal of biological chemistry 1977
S Riazuddin L Grossman

Five peaks of endonuclease activity showing a preference for ultraviolet-damaged DNA have been chromatographically identified from extracts of Micrococcus luteus. They are numerically designated as I to V in order of their elution from phosphocellulose (Whatman P-11) columns. The first two of these peaks have been highly purified by a combination of gel filtration and affinity chromatography an...

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