نتایج جستجو برای: values of r2
تعداد نتایج: 21178481 فیلتر نتایج به سال:
A series of 42 Pyrazolo[4,3-h]quinazoline-3-carboxamides as multi-cyclin-dependent kinaseinhibitors regarded as promising antitumor agents to complement the existing therapies, wassubjected to a three-dimensional quantitative activity relationship (3D QSAR). Different QSARmethods, comparative molecular field analysis (CoMFA), CoMFA region focusing, andcomparative molecular similarity indices an...
This study investigates the role of 3.0T R2* imaging for measuring cardiac iron overload. Experiments were conducted on calibrated phantoms and sickle cell disease (SCD) patients. R2* imaging at 3.0T enabled assessment of wide range of iron concentrations. R2* values at 3.0T were about double of those at 1.5T. Myocardial R2* showed weak and strong correlations with hepatic R2* and serum ferriti...
Background: Magnetic resonance imaging (MRI) is the best imaging examination to evaluate abnormal iron deposition in the brain. Although phase of susceptibility weighted imaging (SWI) and R2 values have been used to probe iron deposition in Alzheimer’s disease (AD) brain, no study has exploited both techniques for quantification of iron deposition in AD. Purpose: Use phase and R2 to evaluate ir...
data on body weight and body measurements (body length, height at withers, chest girth and paunch girth) of adult kilakarsal sheep have been collected from 124 adult animals managed at the farmers filed in tirunelveli districts of tami nadu, india to estimate the body weight from body measurements. the data were subjected to standard statistical analysis using spss software and linear regressio...
Remote sensing was applied for the collection of spatio-temporal data to increase our understanding of the potential distribution of the kala-azar vector Phlebotomus argentipes in endemic areas of the Vaishali district of Bihar, India. We produced monthly distribution maps of the normalized difference vegetation index (NDVI) based on data from the thematic mapper (TM) sensor onboard the Landsat...
The note “Beskrivelse af et bærbart instrument til måling af vejbelægningers refleksionsegenskaber” (in Danish) explains that the two values of the reduced luminance coefficient, r1 and r2, of a road surface lead to the both of the characteristic values for the reflection properties of road surfaces. These are the specular factor S1 and the average reflection measured by either the average lumi...
Using a large sample of D s → φ μν decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic form factor ratios: rv and r2. We find rv = 1.549 ± 0.250 ± 0.145 and r2 = 0.713± 0.202± 0.266. These values are consistent with rv and r2 form factors measured for the process D → K∗0l+νl.
Close similarity between the rat native low-conductance K(+) channel in the apical membrane of renal cortical collecting duct principal cells and the cloned rat ROMK channel strongly suggest that the two are identical. Prominent features of ROMK regulation are a steep pH dependence and activation by protein kinase A (PKA)-dependent phosphorylation. In this study, we investigated the pH dependen...
Effect of inversion recovery fat suppression on hepatic R2* quantitation in transfusional siderosis.
OBJECTIVE. The purpose of this study is to evaluate whether the application of spectral pre-saturation inversion recovery (SPIR) fat suppression in standard multiecho gradient-echo sequences has a significant effect on hepatic R2* quantitation in patients with iron overload syndromes. MATERIALS AND METHODS. Eighty patients were scanned with a multiecho gradient-echo sequence without and with th...
PURPOSE Heme and iron accumulation due to repeated hemorrhage in endometriosis may contribute to a pivotal role in carcinogenesis. We evaluate the clinical application of MR relaxometry in a series of ovarian endometriosis (OE) and endometriosis-associated ovarian cancer (EAOC). MATERIALS AND METHODS A prospective study of diagnostic accuracy was conducted among 82 patients (67 OE and 15 EAOC...
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