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Bernadeth F Ticar, Zuliyati Rohmah, Carmelo V Ambut, Yeung-Joon Choi, Solange I Mussatto, Byeong-Dae Choi
This study aimed to recover a heparin-like anticoagulant polysaccharide from Liparis tessellatus eggs (PLE) by using enzyme-assisted extraction technique. Extraction experiments were carried out using three different enzymes (Alcalase®2.4 L, Flavourzyme®500 MG, and Protamex®) under different conditions of temperature (45, 50, and 55°C), pH (6.5, 7.0, and 7.5), incubation time (24, 36, and 48 h), and enzyme to substrate ratio (E/S=0.5, 1.0, and 1.5%, w/w), which were combined according to a D-optimal design...
March 2015: International Journal of Biological Macromolecules
Mathew J Willans, Devin N Sears, Roderick E Wasylishen
The use of continuous-wave (CW) 1H decoupling has generally provided little improvement in the 13C MAS NMR spectroscopy of paramagnetic organic solids. Recent solid-state 13C NMR studies have demonstrated that at rapid magic-angle spinning rates CW decoupling can result in reductions in signal-to-noise and that 1H decoupling should be omitted when acquiring 13C MAS NMR spectra of paramagnetic solids. However, studies of the effectiveness of modern 1H decoupling sequences are lacking, and the performance of such sequences over a variety of experimental conditions must be investigated before 1H decoupling is discounted altogether...
March 2008: Journal of Magnetic Resonance
Y F Jacquet
When mice were placed in a novel environment, they exhibited behavioral activation, characterized by a high frequency of jumps, rearings, groomings, digging, etc. Naloxone exerted a dose-dependent antagonism of this behavior. The antagonism was stereospecfic, with the enantiomer, (+)-naloxone failing to antagonize this behavior. Morphine-injected mice showed a different behavioral syndrome, i.e., Straub tail and a compulsive, robot-like ambutation around the perimeter of the bin, with a total absence of jumps, rearings, etc...
October 1980: Pharmacology, Biochemistry, and Behavior
A Ignatius
No abstract text is available yet for this article.
September 10, 1965: Der Landarzt
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