نتایج جستجو برای: micro and macro protonation and tautomeric constants

تعداد نتایج: 16858045  

Journal: :Journal of chemical theory and computation 2017
Plamen Dobrev Serena Donnini Gerrit Groenhof Helmut Grubmüller

Correct protonation of titratable groups in biomolecules is crucial for their accurate description by molecular dynamics simulations. In the context of constant pH simulations, an additional protonation degree of freedom is introduced for each titratable site, allowing the protonation state to change dynamically with changing structure or electrostatics. Here, we extend previous approaches for ...

Journal: :Acta chimica Slovenica 2011
Nethala Vijaya Kumar Gollapalli Nageswara Rao

The protonation constants of L-Aspartic acid have been studied pH-metrically in various concentrations (0-60% v/v) of acetonitrile- and ethylene glycol-water mixtures maintaining an ionic strength of 0.16 mol L-1 at 303K. The protonation constants have been calculated with the computer program MINIQUAD75 and are selected based on statistical parameters. Linear variation of step-wise protonation...

B Japar Sidik F.M.I Natrah W.N Wan Hazma Z Muta Harah,

The present study determined and compared contents of macro- (Nitrogen-N, Phosphorus-P, Potassium-K, Calcium-Ca, Magnesium-Mg) and micro- (Zinc-Zn, Iron-Fe, Manganese-Mn, Cupper-Cu) nutrients in four seagrass species big-leaved (BL) Halophila ovalis (R. Br.) Hook. f., small-leaved (SL) H. ovalis (R. Br.) Ascherson, H. spinulosa (R. Br.) Aschers. in Neumayer and Halodule uninervis (Forssk.) Asch...

Farrokh Gharib Karim Zare, Ramin Cheraghali

The dependence on ionic strength of protonation of L-aspartic acid and its complexation withdioxouranium(VI) is reported in sodium perchlorate solution as a background salt. The measurementshave been performed at 25 ± 0.1 °C and various ionic strengths in the range 0.1 to 1.0 mol dm-3, using acombination of potentiometric and spectrophotometric techniques. The overall analysis of the present an...

Journal: :Physical chemistry chemical physics : PCCP 2014
Matias Berdakin Géraldine Féraud Claude Dedonder-Lardeux Christophe Jouvet Gustavo A Pino

The very fast relaxation of the excited states to the ground state in DNA/RNA bases is a necessary process to ensure the photostability of DNA and its rate is highly sensitive to the tautomeric form of the bases. Protonation of the bases plays a crucial role in many biochemical and mutagenic processes and it can result in alternative tautomeric structures, thus making important the knowledge of...

Arash Golzari Javad Kia Heirati Mehdi Azadsarv

Framed in Farahzad’s (2009) critical discourse analysis (CDA) model, the present research aimed at analyzing these influences in two Persian translations of Alice’s Adventures in Wonderland at micro and macro levels. To do so, the textual features at micro-level, while the constituent aspects about the translated texts at macro-level were examined. As to the micro-level analysis, it was found t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1392

اهداف عمده ی این مطالعه دو دسته هستند:1) تعیین هنجار های اجتماعی فرهنگی مورد استفاده در ترجمه ی کتاب کودک برای کودکان ایرانی 2) بررسی مفهوم کودک در ایران و ائدئولوژی این جامعه در رابطه با کودک که مترجم را مجبور به بازسازی کتابهای داستان برای کودکان ایرانی میکند. به این منظور, ابتدا ,مجموعه ای از 30 کتاب داستان و ترجمه های فارسی انها بر اساس مدلlambert and van gorp(2006)مقایسه شد و سپس استراتژیه...

Background and Objectives: The goal of current study is to evaluate the performance of hospitals and their departments. This manuscript aimed at estimation of the most productive scale size (MPSS), returns to scale (RTS), and benchmarking for inefficient hospitals and their departments. Methods: The radial and non-radial data envelopment analysis (DEA) ap...

F.M.I Natrah, Z Muta Harah, B Japar Sidik , W.N Wan Hazma ,

The present study determined and compared contents of macro- (Nitrogen-N, Phosphorus-P, Potassium-K, Calcium-Ca, Magnesium-Mg) and micro- (Zinc-Zn, Iron-Fe, Manganese-Mn, Cupper-Cu) nutrients in four seagrass species big-leaved (BL) Halophila ovalis (R. Br.) Hook. f., small-leaved (SL) H. ovalis (R. Br.) Ascherson, H. spinulosa (R. Br.) Aschers. in Neumayer and Halodule uninervis (Forssk.) Asch...

Journal: :archives of razi institute 2016
s. soleimani b. abedi kiasari2,

poliomyelitis, an acute viral infectious disease caused by poliovirus, still remains a public health problem in developing countries. despite the global effort to eradicate polio, continuing the polio immunization with a potent and safe vaccine is essential. for accurate vaccine evaluation, three types of cell lines including hela, hep2c and vero were evaluated and compared using two methods of...

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