نتایج جستجو برای: t but ammonium iodide

تعداد نتایج: 2640063  

Journal: :ACS Applied Materials & Interfaces 2021

Slowing the degradation of perovskite-based solar cells (PSCs) is substantial interest. We engineered surface by introducing a hydrophobic overlayer on three-dimensional (3D) perovskite using fluorinated or nonfluorinated aryl ammonium cation spacers. The placement fluoroarene allows formation bilayer structure, that is, layered/3D perovskites. By doing so, character increases notably virtue pe...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم انسانی 1390

in solvo-hydrothermal method, xrd pattern was indicated presence of intermediate of ammonium octatmolybdate and ammonium tetramolybdate, which were changed to stble phase of ?-moo3 annealing. sem images were indicated nanoparticle with semispheical morphology and tem image was demonstrated nanoparticles with a diameter size of 25nm. also in impregnate method. the xrd pattern was shown high crys...

Journal: :Infection and immunity 1982
S A Baker-Zander S Sell S A Lukehart

Sera from rabbits with early experimental syphilis were tested for their effect on in vitro lymphocyte transformation responses to related specific antigens (sonicated T. pallidum), unrelated specific antigens (sheep erythrocytes), and the T cell mitogen, concanavalin A. Results were compared with responses in preinfection sera and in sera from sham-infected rabbits. Titration experiments in wh...

Journal: :Applied and environmental microbiology 2002
Sharon Avrahami Ralf Conrad Gesche Braker

The effect of ammonium addition (6.5, 58, and 395 microg of NH4+-N g [dry weight] of soil(-1)) on soil microbial communities was explored. For medium and high ammonium concentrations, increased N2O release rates and a shift toward a higher contribution of nitrification to N2O release occurred after incubation for 5 days at 4 degrees C. Communities of ammonia oxidizers were assayed after 4 weeks...

Journal: :Applied and environmental microbiology 2014
Hsiu-Ping Li Benjamin Daniel Danielle Creeley Russell Grandbois Saijin Zhang Chen Xu Yi-Fang Ho Kathy A Schwehr Daniel I Kaplan Peter H Santschi Colleen M Hansel Chris M Yeager

The release of radioactive iodine (i.e., iodine-129 and iodine-131) from nuclear reprocessing facilities is a potential threat to human health. The fate and transport of iodine are determined primarily by its redox status, but processes that affect iodine oxidation states in the environment are poorly characterized. Given the difficulty in removing electrons from iodide (I(-)), naturally occurr...

Journal: :The Journal of clinical investigation 1977
M Izumi P R Larsen

Previous studies have suggested that there is an overproduction of triiodothyronine (T(3)) relative to thyroxine (T(4)) in patients with thyrotoxicosis associated with Graves' disease. To evaluate whether or not an increased ratio of T(3) to T(4) in thyroidal secretion could be contributing to this relative T(3) hyperproduction, T(3), T(4), and iodine were measured in thyroglobulin (Tg) from co...

Journal: :FEMS microbiology ecology 2014
Chen Zhang Quan Yuan Yahai Lu

Methanogens in anaerobic ammonia-rich digesters show differential responses to ammonia stress. The mechanism for this is poorly understood. In the present study, we determined the rates of methane production, the composition of methanogen mcrA (the gene coding for the alpha subunit of methyl-coenzyme M reductase) and their transcripts in response to ammonium addition in the anaerobic sludge ret...

Journal: :Neuroscience 1989
E Gould N J Woolf L L Butcher

The cholinergic innervation of the compact and reticular parts of the substantia nigra in the rat was investigated by use of highly sensitive retrograde and anterograde tract-tracing methods in combination with choline acetyltransferase immunohistochemistry. The fluorescent tracers True Blue, propidium iodide, or fluorogold were infused preferentially into either nigral subnucleus. Cells positi...

Journal: :Pharmacological reviews 1998
J Wolff

Perchlorate competitively blocks iodide from entering the thyroid by an effect on the Na+/I- symporter thus preventing the further synthesis of thyroid hormone but has no effect on the iodination process itself. It is concentrated by thyroid tissue in a manner similar to iodide but is not significantly metabolized in the gland or peripherally. What is not settled is whether there are additional...

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