نتایج جستجو برای: ctac
تعداد نتایج: 135 فیلتر نتایج به سال:
The effect of adsorbent dose and initial concentration on removing the azo-anionic dyes Congo Red andtartrazine present in a synthetic aqueous solution was studied using natural cellulose (CC) modified cationic (MCC) from coconut mesocarp. Three levels dosage (5, 8 12 mg/L) (40, 70 100 were used. Cetyl trimethyl ammonium chloride (CTAC) used as modifying agent. TGA DSC showed that extracted goo...
University of California, San Francisco, USA An atlas-CT-based bone-anatomy compensation for MR-based attenuation correction (MRAC) in brain PET/MRI imaging is a current standard. However, the impact of an anatomical difference has not been clinically evaluated. Thus, we aim to evaluate the impact of the anatomical dissimilarity on MRAC. Whole-body FDG-PET/CT followed by PET/MRI were performed ...
BACKGROUND Nephrotoxicity is a serious adverse effect of calcineurin inhibitor therapy in patients after heart transplantation (HTX). AIM In this retrospective registry study, renal function within the first 2 years after HTX in patients receiving de novo calcineurin inhibitor treatment, that is, cyclosporine A (CSA) or tacrolimus (TAC), was analyzed. In a consecutive subgroup analysis, renal...
The interaction between pyrene-labeled poly(acrylamido)-2-methylpropane sulfonate) (PyPAMPS) and mixed micelles of n-dodecylhexaoxyethylene glycol monoether/n-hexadecyltrimethylammonium chloride (C12E6/CTAC) was studied by turbidimetry, quasielastic light scattering (QELS), fluorescence quenching, and UV spectroscopy. The present report focuses on the effect of the pyrene label on the polymer-m...
As a prerequisite to site-directed mutagenesis on cytochrome c oxidase, two different mutants are constructed by inactivating the cta gene locus encoding subunits II and III (ctaC and ctaE) of the Paracoccus denitrificans oxidase. Either a short fragment encoding part of the putative copper binding site near the C terminus of subunit II, or a substantial fragment, comprising parts of the coding...
Pseudomonas fluorescens Pf0-1 exhibited chemotactic responses to l-malate, succinate, and fumarate. We constructed a plasmid library of 37 methyl-accepting chemotaxis protein (MCP) genes of P. fluorescens Pf0-1. To identify a MCP for l-malate, the plasmid library was screened using the PA2652 mutant of Pseudomonas aeruginosa PAO1, a mutant defective in chemotaxis to l-malate. The introduction o...
Surface chemistry plays a pivotal role in regulating the morphology of nanoparticles, maintaining colloidal stability, and mediating the interaction with target analytes toward practical applications such as surface-enhanced Raman scattering (SERS)-based sensing and imaging. The use of a binary ligand mixture composed of 1,4-benzenedithiol (BDT) and hexadecyltrimethylammonium chloride (CTAC) to...
Objective: The aim of this study was to evaluate the influences of reconstruction and attenuation correction on the differences in the radioactivity distributions in 123I brain SPECT obtained by the hybrid SPECT/CT device. Methods: We used the 3-dimensional (3D) brain phantom, which imitates the precise structure of gray mater, white matter and bone regions. It was filled with 123I solution (20...
Objective This study evaluates the feasibility of direct scatter and attenuation correction whole-body 68Ga-PSMA PET images in image domain using deep learning. Methods Whole-body 399 subjects were used to train a residual learning model, taking non–attenuation-corrected (PET-nonAC) as input CT-based attenuation-corrected (PET-CTAC) target (reference). Forty-six an independent validation datase...
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