نتایج جستجو برای: فنل sds
تعداد نتایج: 23559 فیلتر نتایج به سال:
BACKGROUND In chronic autonomic failure of varying aetiologies, there are differences in the cardiovascular responses to supine leg exercise and to standing after exercise. Whether this occurs between the different subgroups with Shy-Drager syndrome (SDS) is unknown. METHODS Fourteen patients with the cerebellar form (SDS-C) and 11 patients with parkinsonian features (SDS-P) were studied. R...
The Influence of Additives on the Rheological and Sedimentary Properties of Magnetorheological Fluid
In this research, the influence of additives on rheological and sedimentary properties magnetorheological fluid (MRF) was tested analyzed. The were stearic acid, sodium dodecyl sulfate (SDS), their mixture, respectively. MRF composed carbonyl iron particle, silicone oil, liquid paraffin, graphite bentonite, SDS. results indicated that mainly influenced by mass fraction particle. When fractions ...
The effect of the presence sodium dodecyl sulfate (SDS) on denaturation bovine serum albumin (BSA) has been studied using 36 m small-angle neutron scattering (SANS) BATAN spectrometer (SMARTer). data reduction used Graphical Reduction and Analysis SANS Program (GRASP) software, fitting process IGOR software. was identified by observing changes BSA globular structure. experimental results showed...
از ترکیبات مختلف آلاینده آب که عمدتاً از طریق فاضلابهای خام و پسابها به منابع آب راه می یابند، فنل دارای اهمیت ویژه ای است. این ماده ترکیب فراگیری است که از طریق طبیعی نیز وارد منابع آب می شود. از آنجایی که فنل ماده ای سمّی است و حذف آن به روش بیولوژیک مشکل است، استفاده از فرایند اکسیداسیون فنتون به دلیل سهولت اجرا، امکان به کار گیری آن در مقیاسهای مختلف و ملاحظات اقتصادی، مناسب به نظر می رسد. در...
Sodium dodecyl sulfate (SDS)-poly(propylene oxide) methacrylate (PPOMA) (of molecular weight M(w) = 434 g x mol(-1)) mixtures have been studied using conductimetry, static light scattering, fluorescence spectroscopy, and 1H NMR. It has been shown that SDS and PPOMA form mixed micelles, and SDS and PPOMA aggregation numbers, N(ag SDS) and N(ag PPOMA), have been determined. Total aggregation numb...
PURPOSE There are inconsistencies in the results reported in a small number of previous studies into growth hormone (GH) treatment in Korean children with idiopathic short stature (ISS) and idiopathic growth hormone deficiency (IGHD). Thus, the authors retrospectively compared the effects of GH in ISS and IGHD. METHODS From the medical records of 26 ISS and 30 IGHD children, auxological and b...
Forest biomass measurement or estimation is critical for forest monitoring at the stand scale, but errors among different estimations in investigation are unclear. Thus, Pinus densata natural Shangri-La City, southwestern China, was selected as research object to investigate of 84 plots and 100 samples P. densata. The calculated using five methods: growth with age (SBA), stem combined expansion...
OBJECTIVES To answer the questions: how does body mass index (BMI) correlate to five overweight related anthropometric variables during different ages in childhood, and which anthropometric variables contribute most to variation in BMI during childhood? METHODS Data on BMI, height (H), sitting height (SH), waist circumference (WC), waist to height ratio (WHtR), waist to sitting height ratio (...
In addition to variation in terms of single nucleotide polymorphisms (SNPs), whole regions ranging from several kilobases up to a megabase in length differ in copy number among individuals. These differences are referred to as Copy Number Variants (CNVs) and extensive mapping of these is underway. Recent studies have highlighted their great prevalence in the human genome. Segmental Duplications...
مقدمه: فنل و مشتقات آن از جمله مهمترین آلایندههای محیطی هستند که غالباً در پسابهای صنعتی یافت میشوند. با وجود سمیبودن، فنل میتواند بهعنوان تنها منبع کربن و انرژی توسط برخی میکروارگانیسمها مصرف شود. مواد و روشها: در این پژوهش جداسازی مخمرهای تحملکنندۀ نمک و تجزیهکنندۀ فنل در محیط کشت GPY و MA حاوی ppm۲۵۰ فنل و۵درصد NaCl انجام شد. از میان جدایههای بهدستآمده، جدایۀ مخمری با توانایی مص...
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