We consider a dynamic time division duplex (DTDD) enabled cell-free massive multiple-input multiple-output (CF-mMIMO) system, where each half-duplex (HD) access point (AP) is scheduled to operate in the uplink (UL) or downlink (DL) mode based on data demands of user equipments (UEs), with goal maximizing sum UL-DL spectral efficiency (SE). develop new, low complexity, greedy algorithm for combi...

Xi’an-Baoji Highway is one of the oldest and most important highways in northwest China. In this study, the concentrations (0-20 cm) of Pb, Zn, Cu and Cr at 5-1000 m distances in the roadside soils along Xi’an-Baoji Highway were experimentally determined to analyze their spatial distribution and evaluate their contamination levels. The spatial distribution (mg·kg) of Pb, Zn, Cu and Cr at 5-1000...

Heavy metal contamination of aquatic environment has attracted global attention owing to its abundance, persistence, and environmental toxicity, especially in developing countries like Bangladesh. Five heavy metals, namely chromium (Cr), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn) were investigated in surface and core sediments of the Karnaphuli River (KR) estuary in Chittagong, Banglades...

Cystic Fibrosis (CF) is primarily a progressive lung disease, characterized by chronic pulmonary infections with opportunistic pathogens. Such typically commence early in life, producing an inflammatory response marked IL-8 chemokine production and neutrophilic infiltration, major contributory factors CF progression. Studying this inflammation, especially critical for developing new strategies ...

Seventy-four of 403 (18.4%) sputum isolates of Pseudomonas aeruginosa from 49 of 136 (36.0%) adults with cystic fibrosis (CF) were auxotrophic mutants. Two of 11 (18.2%) isolates of P. aeruginosa taken from patients with non-CF bronchiectasis were also auxotrophic. All 99 strains taken from non-bronchiectatic sources were prototrophic. Forty-six of 55 (83.6%) CF auxotrophs required one or more ...

Jukes (1) and Broquist et al. (2) reported that the addition of formate or serine to incubating cells of an A-Methopterin-resistant strain of Xtreptococcus.faecalis increased the amount of citrovorum factor (CF, folinic acid) which was formed from pteroylglutamic acid (PGA). This finding suggested that ‘Lformate-carbon” was incorporated into the structure of CF. Under appropriate conditions an ...

Jukes (1) and Broquist et al. (2) reported that the addition of formate or serine to incubating cells of an A-Methopterin-resistant strain of Xtreptococcus.faecalis increased the amount of citrovorum factor (CF, folinic acid) which was formed from pteroylglutamic acid (PGA). This finding suggested that ‘Lformate-carbon” was incorporated into the structure of CF. Under appropriate conditions an ...

A model predicting plant uptake of radiocaesium based on soil characteristics is described. Three soil parameters required to determine radiocaesium bioavailability in soils are estimated in the model: the labile caesium distribution coefficient (kd1), K+ concentration in the soil solution [mK] and the soil solution-->plant radiocaesium concentration factor (CF, Bq kg-1 plant/Bq dm-3). These we...

Splenic stromal cells (CF-1 cells) were established from a mouse administered recombinant human granulocyte colony-stimulating factor (rG-CSF) to clarify the mechanism of splenic extramedullary hematopoiesis induced by the factor. The cells were negative for alkaline phosphatase, factor VIII-related antigen, mac I, and phagocytosis. They were positive for acid phosphatase, collagen type I, coll...