نتایج جستجو برای: contamination factor cf
تعداد نتایج: 920367 فیلتر نتایج به سال:
Heavy metals concentrations in water and sediment samples collected from five streams in Tarkwa gold mining district of Ghana were studied. The water and sediment samples were analysed for As, Al, Cd, Co, Cu, Hg, Mn, Sb, Th, and V, using Instrumental Neutron Activation Analysis (INAA). The results of this study generally showed elevated levels of all the ten examined elements in the water and s...
A retrospective, single-center study from 2017 to 2019. Of 120 patients with advanced Rutherford class 3 and 4 chronic peripheral arterial disease (PAD), activity of coagulation factor (CF) VIII significantly increased months after open prosthetic bypass grafting (40 patients). Six CF-VIII developed graft thrombosis. Activities CF-VIII, CF-IX, CF-XI endovascular intervention Four in the group t...
Cystic fibrosis (CF) airway epithelial cells are more susceptible to viral infection due to impairment of the innate host defense pathway of nitric oxide (NO). NO synthase-2 (NOS2) expression is absent, and signal transducer and activator of transcription (STAT) 1 activation is reduced in CF. We hypothesized that the IFN-gamma signaling pathway, which leads to NOS2 gene induction in CF airway e...
The atmospheric deposition of heavy metals in Albania was investigated by using a carpet-forming moss species (Hypnum cupressiforme) as bioindicator. Sampling was done in the dry seasons of autumn 2010 and summer 2011. Two different sampling schemes are discussed in this paper: a random sampling scheme with 62 sampling sites distributed over the whole territory of Albania and systematic samplin...
Cephalopods play a key role in many marine trophic food webs and also constitute alternative fishery resources in the context of the ongoing decline in finfish stocks. Most coastal cephalopod species of commercial importance migrate into shallow waters during the breeding season to lay their eggs, and are consequently subjected to coastal contamination. Eggs of common cuttlefish Sepia officinal...
Bernhard Huchzermeyer Botanisches Institut, Tierärztliche Hochschule, Bünteweg 17d, D-3000 Hannover 71, Bundesrepublik Deutschland Z. Naturforsch. 43c, 213-218 (1988); received July 27/November 19, 1987 Chloroplast, Coupling Factor, Binding Sites, ATPase, Phosphorylation A single binding site for phosphate was found on isolated chloroplast coupling factor in the absence of nucleotides. In our e...
this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...
A field study was conducted to assess the agronomical performance of eggplant (Solanum melongena cv. Pusa Purple Long Hybrid-F1) grown in sewage sludge amended soil in rainy and summer seasons during two consecutive years 2012 and 2013. The results showed that sewage sludge significantly (P < 0.05/P < 0.01) increased the Organic Carbon (OC), sodium (Na + ), potassium (K + ), calcium (Ca 2+ ), m...
Abstract Background Different gamma camera calibration factor (CF) geometries have been proposed to convert SPECT data into units of activity concentration. However, no consensus has reached on a standardised geometry. The CF is dependent the selected geometry and further affected by partial volume effects. This study investigated effect two their corresponding recovery coefficients (RCs) quant...
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