The aim of this study was to investigate the feasibility of a bioreactor system and its scale-up to remove Cr(VI) from solution. The bioreactor is based on an innovative process that combines bioreduction of Cr(VI) to Cr(III) by the bacterium Arthrobacter viscosus and Cr(III) sorption by a specific zeolite. Batch studies were conducted in a laboratory-scale bioreactor, taking into account diffe...

Penelitian ini bertujuan untuk mengetahui pengaruh Current Ratio, Quick dan Debt to Equity Ratio terhadap Kinerja Keuangan (ROA) pada Perusahaan Manufaktur periode 2016-2018. menggunakan metode kuantitatif data dikumpulkan melalui ICMD dari 12 perusahaan yang dipilh secara proposive sampling selama 3 tahun pelaporan analisis regresi linier berganda. Hasil berganda penelitian yaitu variabel (CR)...

Pteridium aquilinum is a ubiquitous species considered to be one of the plants most resistant to metals. This fern meets the demands for a good bioindicator to improve environmental control. Therefore, it was of interest to survey the accumulation of Cr and Ni in the rhizome and fronds of this species collected in Lower Silesia (SW Poland) of serpentinite rich in Cr and Ni and granite poor in t...

BACKGROUND AND PURPOSE There is a lack of information with regard to normal metabolic ratios acquired with MR spectroscopy utilizing a long echo time technique. Our purpose was to measure metabolic ratios in healthy adults to determine whether the metabolites varied across brain regions and by sex. METHODS Single voxel proton spectra were acquired with an echo time of 135 milliseconds in 10 b...

Two patients with acute thiamine deficiency were examined with thalamic single-voxel proton MR spectroscopy. T2-weighted images exhibited increased signal intensity. N-acetylaspartate (NAA)/creatine (Cr) ratios were low without detectable lactate. Owing to substantially decreased choline (Cho) T2, the Cho/Cr ratio was not decreased. After thiamine therapy, the NAA/Cr ratio increased, parallelin...

The interaction between the ions and the charge of membranes can affect the efficiency of pollutant removal. The present study investigated the removal efficiency of hexavalent chromium and nitrate ions from both actual and synthetic contaminated water via two different commercial spiral wound polyamide nanofilters. In addition, the interaction of ions under different experimental conditions wa...

OBJECTIVE Non-invasive biomarkers to monitor cerebral function in treated human immunodeficiency virus (HIV) disease are required. Cerebral metabolite ratios (CMRs) measured by proton-MR spectroscopy ((1)H-MRS) are a potential biomarker. Here, we compare two post-processing software packages to quantify CMRs. METHODS Cerebral (1)H-MRS data from 11 HIV-positive subjects before and after antire...

Magnetic resonance spectroscopy (MRS) and perfusion of central pontine myelinolysis (CPM) have been rarely reported. One case of CPM that developed after liver transplantation was analyzed with serial diffusion-weighted imaging (DWI), MRS and MR perfusion. During the acute phase, a pontine lesion showed an obvious high-signal intensity on DWI with decreased apparent diffusion coefficient value,...

This study aims at evaluating the application of magnetic resonance spectroscopy (MRS) in the differential diagnosis of brain tumors and inflammatory brain lesions. The examinations of 81 individuals, who performed brain MRS and were retrospectively analyzed. The patients with ages between 10 and 80 years old, were divided into two groups. Group A consisted of 42 individuals with diagnoses of c...