نتایج جستجو برای: methanol dehydration

تعداد نتایج: 44844  

Journal: :Plant physiology 1984
T Senaratna B D McKersie R H Stinson

Axes of soybean seeds are tolerant to dehydration at 6 hours of imbibition, but susceptible to dehydration injury if dried at 36 hours of imbibition. Smooth microsomal membranes were isolated from axes imbibed for 6 hours (dehydration tolerant state) and 36 hours (dehydration susceptible state) before and after dehydration treatment. The phase properties and the lipid composition of the membran...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2016
Fernando E García-Arroyo Magdalena Cristóbal Abraham S Arellano-Buendía Horacio Osorio Edilia Tapia Virgilia Soto Magdalena Madero Miguel A Lanaspa Carlos Roncal-Jiménez Lise Bankir Richard J Johnson Laura-Gabriela Sánchez-Lozada

Recurrent dehydration, such as commonly occurs with manual labor in tropical environments, has been recently shown to result in chronic kidney injury, likely through the effects of hyperosmolarity to activate both vasopressin and aldose reductase-fructokinase pathways. The observation that the latter pathway can be directly engaged by simple sugars (glucose and fructose) leads to the hypothesis...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان خراسان رضوی - دانشکده شیمی 1388

در این کار تحقیقاتی ابتدا مطالعه سینتیک واکنش پیریدین و 2 کلر پیریدین با کمپلکس پلاتین (ii) به فرمول p-tol)2 (sme2)2])pt]در دماهای 30،20،15،5 و 40 درجه سلسیوس بررسی گردید. که بدلیل سرعت زیاد واکنش محاسبه پارامترهای سینتیکی غیر میسر بود لذا کار ترمودینامیکی جانشینی سه لیگاند از پیریدین و مشتقات آن (2 کلروپیریدین و 2 برموپیریدین) در سه حلال (دی کلرو متان، استن و متانول) در دستور کار قرار گرفت. ب...

جعفری ندوشن, سمیه, شکیبا, مهرداد, لطفی, محمدحسن,

Introduction: Water is an essential nutrient for life. It comprises 75% of total body weight in infants,60% in adult males and 50% in adult females. Decrease in body water is commonly known as dehydration. Acute or chronic dehydration is a common condition in some population groups, especialy the elderly and those who participate in physical activity in warm enviroments. Potential consequences ...

2005
EUDES E. FILETI SYLVIO CANUTO

Ab initio calculations at the B3LYP/aug-cc-pVDZ, B3PW91/aug-ccpVDZ, MP2/aug-cc-pVDZ, B3LYP/6-311 G(2d,2p), B3PW91/6-311 G(2d,2p), and MP2/6-311 G(2d,2p) levels are performed for the IR spectra of isolated water and methanol molecules and hydrogen-bonded water–methanol, methanol–water, and methanol–methanol complexes. Frequency shifts and changes in intensities are obtained for the proton donor ...

Journal: :The Lancet. Global health 2016
Adam C Levine Justin Glavis-Bloom Payal Modi Sabiha Nasrin Bita Atika Soham Rege Sarah Robertson Christopher H Schmid Nur H Alam

BACKGROUND Dehydration due to diarrhoea is a leading cause of child death worldwide, yet no clinical tools for assessing dehydration have been validated in resource-limited settings. The Dehydration: Assessing Kids Accurately (DHAKA) score was derived for assessing dehydration in children with diarrhoea in a low-income country setting. In this study, we aimed to externally validate the DHAKA sc...

Journal: :Journal of Power Sources 2021

Lifetime limitations are still penalizing direct methanol fuel cell technology, otherwise outstandingly promising for sustainable portable power generation. Strong heterogeneous performance fading, related to uneven operating conditions, is known be exacerbated in the upscaling process towards commercial applications, especially at local level. This work applies a localized optimization strateg...

2010
Sandra A Allen William Clark J Michael McCaffery Zhen Cai Alison Lanctot Patricia J Slininger Z Lewis Liu Steven W Gorsich

BACKGROUND Biofuels offer a viable alternative to petroleum-based fuel. However, current methods are not sufficient and the technology required in order to use lignocellulosic biomass as a fermentation substrate faces several challenges. One challenge is the need for a robust fermentative microorganism that can tolerate the inhibitors present during lignocellulosic fermentation. These inhibitor...

Journal: :Nature Reviews Chemistry 2018

Journal: :Biochimica et biophysica acta 2003
Hirohide Toyama Hideko Inagaki Kazunobu Matsushita Christopher Anthony Osao Adachi

The largest of the gene clusters coding for proteins involved in methanol oxidation is the cluster mxaFJGIR(S)ACKLDEHB. Disruption of most of these genes leads to lack of growth on methanol. The previous results showed that the mutant lacking MxaD grows on methanol although at a low rate. This is explained by the low rate of methanol oxidation by whole cells. The specific activity of methanol d...

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