نتایج جستجو برای: natural compound

تعداد نتایج: 601460  

The subject intended to study the general methods of natural word-forming in Azeri Turkish language. This study aimed to reach this purpose by analyzing the construction of compound Azeri Turkish words. Same’ei (2016) did a comprehensive study on word-forming process in Farsi, which was the inspiration source of this study for Azeri Turkish language word-forming. Numerous scholars had done vari...

Journal: :CoRR 2008
Oliver Johnson Ioannis Kontoyiannis Mokshay M. Madiman

Motivated, in part, by the desire to develop an information-theoretic foundation for compound Poisson approximation limit theorems (analogous to the corresponding developments for the central limit theorem and for simple Poisson approximation), this work examines sufficient conditions under which the compound Poisson distribution has maximal entropy within a natural class of probability measure...

Shohreh Maleki

In this study, the effect of fullerene electron mobility on the composition of paraphenylenediamine and stability was studied. Using quantum chemistry calculations, the first combination of paraffenylenediamine in a single-full-time region connected with fullerene through carbon atoms was reported. Experimental research was simulated and optimized using GIS software. Then the NBO calculations w...

ژورنال: علمی شیلات ایران 2019

Chemical-ecological studies of sponges show that the secondary metabolites are only defense system. Nowadays natural products with biological activities are used as drugs for treatment of human diseases. One of the most important biological activities of sponges is cytotoxic activity. This study investigated the cytotoxic activities of α-Santonin compound which extracted from Dysidea avara. In ...

Objective(s): To address the alarming problem of methicillin-resistant Staphylococcus aureus (MRSA), herein, a marine Streptomyces capable of producing an anti-MRSA compound has been studied.Materials and Methods: Strain MN41 was morphologically and physiologically characterized and then, molecularly identified using 16SrRNA analysis. To...

The hybrid density functional theory (B3LYP) and ab initio molecular orbital (HF) based methods and Natural Bond Orbital (NBO) interpretation were used to analyze the conformational behaviors of 2,5,5-trimethyl-1,3,2-dioxaphosphinane 2-selenide (compound 1), 2,5,5-trimethyl-1,3,2-dithiaphosphinane 2-selenide (compound 2) and 2,5,5-trimethyl-1,3,2-diselena phosp...

Journal: :Angewandte Chemie 2013
Susanne Holzhauser Anja Freiwald Christoph Weise Gerd Multhaup Chung-Ting Han Sascha Sauer

Natural products are a rich resource for the development of chemical probes, functional foods (nutraceuticals), and pharmaceuticals. The remarkable structural diversity of natural product or biology-oriented compound libraries in particular argues for their use in applications such as drug screenings. Enzymes that can posttranslationally modify proteins or nucleic acids are attractive drug targ...

2017
Thomas J. Groshens Heather A. Meylemans

A new compound, bis[2-(methoxycarbonyl)phenyl]oxalate, made from methyl salicylate (oil of wintergreen) was found to be an excellent replacement for the typical halogen or nitro substituted oxalate esters used in peroxyoxa!ate chemiluminescence demonstrations. The compound is easily prepared and has good solubility in organic solvents such as ethy l acetate which is an environmentally friendly ...

Journal: :iranian journal of nuclear medicine 2012
leila moghaddam-banaem amir reza jalilian mohammadreza pourjavid ali bahrami-samani mohammad mazidi

introduction: due to interesting therapeutic properties of 46sc and antineoblastic antibiotic, bleomycin (blm), 46sc-bleomycin (46sc-blm) was developed as a possible therapeutic compound. methods: in this work, sc-46 chloride was obtained by thermal neutron flux (4 × 1013 n.cm-2.s-1) of natural metallic scandium sample followed by dissolution in acidic media  as a substitute for 47sc in radiol...

2015
Yasushi Ogasawara Benjamin J. Yackley Jacob A. Greenberg Snezna Rogelj Charles E. Melançon

A large and rapidly increasing number of unstudied "orphan" natural product biosynthetic gene clusters are being uncovered in sequenced microbial genomes. An important goal of modern natural products research is to be able to accurately predict natural product structures and biosynthetic pathways from these gene cluster sequences. This requires both development of bioinformatic methods for glob...

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