نتایج جستجو برای: tellurium iv

تعداد نتایج: 188600  

Journal: :Journal of bacteriology 1962
C A WOOLFOLK H R WHITELEY

Woolfolk, C. A. (University of Washington, Seattle) and H. R. Whiteley. Reduction of inorganic compounds with molecular hydrogen by Micrococcus lactilyticus. I. Stoichiometry with compounds of arsenic, selenium, tellurium, transition and other elements. J. Bacteriol. 84:647-658. 1962.-Extracts of Micrococcus lactilyticus (Veillonella alcalescens) oxidize molecular hydrogen at the expense of cer...

Journal: :Molecules 2009
Bruno Bureau Catherine Boussard-Pledel Pierre Lucas Xianghua Zhang Jacques Lucas

Despite being close neighbors on the Periodic Table, selenium and tellurium present a totally different abilities to form glasses. Se is a very good glass former, and gives rise to numerous glass compositions which are popular for their transparency in the infrared range and their stability against crystallization. These glasses can be shaped into sophisticated optical devices such as optical f...

Journal: :nephro-urology monthly 0
mohammad reza khajavi department of anesthesiology, sina hospital, tehran university of medical sciences, tehran, ir iran seyed mehdi sabouri department of anesthesiology, sina hospital, tehran university of medical sciences, tehran, ir iran reza shariat moharari department of anesthesiology, sina hospital, tehran university of medical sciences, tehran, ir iran pejman pourfakhr department of anesthesiology, sina hospital, tehran university of medical sciences, tehran, ir iran; department of anesthesiology, sina hospital, tehran university of medical sciences, hassan abad sq., tehran, ir iran. tel: +98-9122008857, fax: +98-2166348550 atabak najafi department of anesthesiology, sina hospital, tehran university of medical sciences, tehran, ir iran farhad etezadi department of anesthesiology, sina hospital, tehran university of medical sciences, tehran, ir iran

conclusions the combination of intravenous paracetamol 1 gr and ketamine 0.5 mg/kg resulted in an overall reduction in pain scores, decreased postoperative analgesic requirements, and lower agitation score compared with intravenous paracetamol 1 gr and tramadol 0.7 mg/kg for patients undergoing renal surgery. results postoperative pain scores were significantly lower in the pk group than in the...

Journal: :Scientific American 1878

1997
P. S. Ganas

Oscillator strengths for excitations of neutral selenium and tellurium from the ground state are calculated using a semiempirical analytic independent-particle-model. The results are compared to experimental and theoretical data.

Journal: :Journal of Electrochemical Science and Engineering 2021

Based on the study of volt-ampere dependencies during electroreduction rhenium (VII), tellurium (IV) and copper (II) ions from hydrochloric acid electrolyte Pt electrode, conditions deposition nano-coatings ternary Re-Te-Cu alloy were determined. The influence various factors such as amounts individual components total con­cen­tra­tions in solution, temperature, concentration hydro­chloric acid...

2012
Prakul Rakesh Harkesh B. Singh Ray J. Butcher

The title compound, C(9)H(13)Br(2)ClNTe, was synthesized by reacting [2-(dimethyl-amino-meth-yl)phen-yl]tellurium(II) chlor-ide with Br(2). As a consequence, the Cl and Br atoms are not well ordered but distributed over the three possible positions such that the overall stiochiometry is two Br atoms and one Cl atom. The scrambling of the Br and Cl atoms indicates a small energy barrier for the ...

Journal: :Applied and environmental microbiology 2006
Anna M Zawadzka Ronald L Crawford Andrzej J Paszczynski

The siderophore of Pseudomonas stutzeri KC, pyridine-2,6-bis(thiocarboxylic acid) (pdtc), is shown to detoxify selenium and tellurium oxyanions in bacterial cultures. A mechanism for pdtc's detoxification of tellurite and selenite is proposed. The mechanism is based upon determination using mass spectrometry and energy-dispersive X-ray spectrometry of the chemical structures of compounds formed...

2014
Fang Yang Ka-Hing Wong Yufeng Yang Xiaoling Li Jie Jiang Wenjie Zheng Hualian Wu Tianfeng Chen

Tellurium-containing phycocyanin (Te-PC) and allophycocyanin (Te-APC), two organic tellurium (Te) species, were purified from tellurium-enriched Spirulina platensis by a fast protein liquid chromatographic method. It was found that the incorporation of Te into the peptides enhanced the antioxidant activities of both phycobiliproteins. With fractionation by ammonium sulfate precipitation and hyd...

Journal: :The journal of physical chemistry. B 2006
Paritosh Mohanty Taejoon Kang Bongsoo Kim Jeunghee Park

Single crystalline tellurium (Te) nanotubes with triangular cross sections were successfully synthesized for the first time by a simple approach of vaporizing tellurium metal and condensing the vapor in an inert atmosphere onto a suitable substrate. Tellurium gas was evaporated by heating at 350 degrees C and was condensed on the Si (100) substrate at 150-200 degrees C, in the downstream of arg...

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