BACKGROUND AND PURPOSE MRV has been proposed as a possible screening method to identify chronic cerebrospinal venous insufficiency, which may play a role in MS. We report our initial experience comparing MRV and CV in MS patients to evaluate venous stenosis and collateral venous drainage. MATERIALS AND METHODS Time-of-flight and time-resolved imaging of contrast kinetics MRV and CV were perfo...

OBJECTIVE Essential thrombocythaemia (ET) is a myeloproliferative neoplasm in which there is an increased risk of thrombotic complications. The conventional thrombosis risk assessment of these patients is based on an age over 60 and a history of thrombosis. The aim of this report is to analyse the contribution of cardiovascular risk (CV) factors as possible additional thrombotic risk factors in...

Results with two ultramicro methods for plasma uric acid analysis with uricase are described: a crystal violet (gentian violet) method, modified from an automated procedure by Gochman and Schmitz [C/in. Chem. 17, 1154 (1971)] and adapted to manual analysis, and a polarographic oxygen-sensing system (Beckman Instruments,Inc.).The coefficientof variation (CV) for the crystal violet method varied ...

This study aims to determine the amount of production risk, cost risk and income rice farmers in Polenga Village, Watubangga District, Kolaka Regency. The basic method used this research is quantitative descriptive. Determination sample using simple random sampling method, with a total 48 farmers. results are risks faced by Kecamtan Watubangga, which costs risk. Based on value variation coeffic...

BACKGROUND A method to evaluate the antioxidant capacity of high-density lipoprotein (HDL) was developed and standardized. METHODS This method measure conjugated diene (CD) formation and electrophoretic mobility of low-density lipoprotein (LDL) in agarose gels in the presence and absence of HDL. HDL was isolated from 1 mL of plasma within 24 hours and oxidation assays were performed within 6 ...

Cross-validation (CV) is one of the main tools for performance estimation and parameter tuning in machine learning. The general recipe for computing CV estimate is to run a learning algorithm separately for each CV fold, a computationally expensive process. In this paper, we propose a new approach to reduce the computational burden of CVbased performance estimation. As opposed to all previous a...

A fast liquid chromatographic method with tandem diode array-fluorescence detection for the simultaneous determination of in total seventeen opium alkaloids and opioids is presented. Blank blood and urine samples (1 mL) were spiked with different concentrations of a standard mixture, as well as with the internal standard, butorphanol (200 ng/mL). After solid-phase extraction, based on weak cati...

BACKGROUND Fecal-fat is typically measured by extracting lipid from homogenized feces with subsequent gravimetric/titrimetric analyses that are time-consuming and involve toxic solvents. Accordingly, an efficient and more safe method to quantitate fecal-fat is needed. The present objective was to adapt CEM SmartTrac technology (i.e. (1)H NMR) to rapidly (< 5 min) quantitate fecal-fat and compar...

BACKGROUND This study examines the psychometric properties of the Chinese version of the Activities of Daily Living Questionnaire (ADLQ-CV) in a sample of older Hong Kong Chinese adults with dementia. METHOD The ADLQ-CV was administered to primary family caregivers of 125 community-dwelling individuals with dementia. Assessments were then made of the scale's reliability, validity and factor s...

The Common Vector (CV) method is a successful method which has been originally proposed for isolated word recognition problems in the case where the number of samples for each class is less than or equal to the dimensionality of the sample space. This method suggests elimination of all the features that are in the direction of the eigenvectors corresponding to the nonzero eigenvalues of the cov...