The methanol and chloroform extracts of Boerhaavia diffusa were prepared and investigated for TLC. It was concluded that the chloroform extract showed the better results for TLC in solvent system toluene : acetone : acetic acid. The major spots and their RF values were calculated.

Abstract An experimental method has been developed for probing top-of-the-line corrosion (TLC) of pipeline steel based on the use wire beam electrode (WBE) in conjunction with local electrochemical measurements. Results show that location droplet, droplet retention time, water condensation rate and TLC could be well determined through macro-cell current mapping The precipitation scaling tendenc...

The prognostic role of resting pulmonary hyperinflation as measured by residual volume (RV)/total lung capacity (TLC) in chronic obstructive pulmonary disease (COPD) remains poorly understood. Therefore, this study aimed to identify the factors related to resting pulmonary hyperinflation in COPD and to determine whether resting pulmonary hyperinflation is a prognostic factor in COPD. In total, ...

Objective: Technetium-99m-sestamibi (-1"'Tc-MIBI) is a radiopharmaceutical imaging agent useful for assessing myocardial perfusion. We present a simple, rapid and accurate SepPak® method to confirm the radiochemical purity of "'Tc-MIBI. Methods: Technetium-99m-MIBI preparations of high (>95%), intermediate (83-90%) and low (25-43%) radiochemical purity were evaluated by the recommended thinlaye...

Gangliosides and sulfatides (STs) are acidic glycosphingolipids (GSLs) that have one or more sialic acids or sulfate substituents, in addition to neutral sugars, attached to the C-1 hydroxyl group of the ceramide long chain base. TLC is a widely employed and convenient technique for separation and characterization of GSLs. When TLC is directly coupled to MS, it provides both the molecular mass ...

Anatomic dead space (VD) is known to increase with end-inspiratory lung volume (EILV), and the gradient of the relationship has been proposed as an index of airway distensibility (DeltaVD). The aims of this study were to apply a rapid method for measuring DeltaVD and to determine whether it was affected by lung volume history. VD of 16 healthy and 16 mildly asthmatic subjects was measured at a ...

The purpose of this paper is to present a multi-level operational C holonic reference architecture that is applicable to Navy maritime headquarters (MHQ) with maritime operations center (MOC) for assessing, planning and executing multiple missions and tasks across a range of military operations. The control architecture consists of three levels: strategic level control (SLC), operational level ...

BACKGROUND In COPD patients, hyperinflation impairs cardiac function. We examined whether lung deflation improves oxygen pulse, a surrogate marker of stroke volume. METHODS In 129 NETT patients with cardiopulmonary exercise testing (CPET) and arterial blood gases (ABG substudy), hyperinflation was assessed with residual volume to total lung capacity ratio (RV/TLC), and cardiac function with o...