Two biofilm reactors, using pumice stone and Poraver as biofilm supports, were run, based on the optimization of sulphide production using a factorial design. The maximum H2S concentrations reached were 10 and 15 mm, respectively, both being appropriate for metal precipitation in effluents. The set-up of the pumice stone biofilm reactor is suitable for application in the mining area in the Bolivia

The purpose of this long-term treatment study was to evaluate health-related quality of life by comparing the effects of diltiazem and atenolol on some important metabolic parameters. SUBJECTS, MATERIAL AND METHODS: In a Swedish-Finnish long-term multicenter study 256 patients with mild to moderate hypertension were randomized to treatment with diltiazem retard (D) (n = 127) or atenolol (A) (n = 1

Previous experimental studies have shown positive effects of hyperbaric oxygen treatment in the early regeneration phase in the first few days following a nerve injury. In this study, functional effects of hyperbaric oxygen treatment were studied in 2 series of rats after an injury to the sciatic nerve - a standardized crush injury and nerve transection and repair, respectively. Postoperatively th

The regulation of a K+ current activating during oscillatory electrical activity (I-K,I-slow) in an insulin-releasing,beta-cell was studied by applying the perforated patch whole-cell technique to intact mouse pancreatic islets. The resting whole-cell conductance in the presence of 10 mm glucose amounted to 1.3 nS, which rose by 50% during a series of 26 simulated action potentials. Application of

(1S, 4R, 6R)-6-Hydroxybicyclo[2.2.2]octan-2-one, (+)-1, is synthesized from its enantiomer in 6 steps using a combination of orthogonal protecting groups and red-ox chemistry.

We report on likely mixed paternity in a natural population of snow skinks (Niveoscincus mirolepidoms) from alpine Tasmania, Australia. This species is nonterritorial and males guard females after copulation, Suggesting that guarding behavior has evolved to prevent rival mating of still-receptive females. To what degree does this mate-guarding prevent rival copulations? We sampled gravid females a

Single-nucleotide polymorphisms (SNPs) in the major histocompatibility complex class II transactivator (MHC2TA) gene encoding the class II transactivator have been associated with multiple sclerosis, rheumatoid arthritis, and myocardial infarction in the Swedish population. We used a case-control approach to investigate the prevalence of a relevant variant in Swedish systemic lupus erythematosus (

Raloxifene reduces vertebral fracture risk in postmenopausal women with osteoporosis and established osteoporosis, but its efficacy in women with osteopenia has not been studied. The objective of this study was to evaluate the effect of raloxifene hydrochloride on the risk of vertebral fractures in postmenopausal women with osteopenia and to compare this effect with that in women with osteoporosis

Popular Abstract in Swedish I denna avhandlingen studeras solljusets effekter på organiskt material och bakterier i akvatiska ekosystem. Särskild inriktas arbetet på UV-B strålning då instrålning till jorden av detta kortvågiga UV-ljus troligen ökar p g a ett minskat ozonlager. Ozonlagersproblematiken är verifierad över både norra och södra halvklotet. Resultaten visar på att en betydande del av This thesis examines the role of sunlight, specifically ultraviolet-B radiation (280-320 nm), on dissolved organic matter (DOM) and bacteria in lakes. Field experiments in lakes with different humic contents and geographical locations have been performed. Photooxidation result in that part of DOM is oxidized to inorganic carbon (DIC), mainly CO2. The photooxidation rate can be of the same magnitu

Purpose: To determine if mutations in the retinal transcription factor gene NRL are associated with retinopathies other than autosomal dominant retinitis pigmentosa (adRP). Methods: Genomic DNA was isolated from blood samples obtained from 50 patients with Leber Congenital Amaurosis (LCA), 17 patients with the Enhanced S-Cone Syndrome (ESCS), and a patient with an atypical retinal degeneration tha

Photon-echo-relaxation measurements made on the 3H4-3P0 transition of 0.01 at. % Pr3+:YAG (where YAG represents yttrium aluminum garnet), 3H4-1D2 transition in 0.1 at. % Pr3+:YAlO3, and 7F0-5D0 transition in 0.25 at. % Eu3+:YAlO3 show that the photon-echo relaxation rate increases when the intensities of the excitation pulses are increased. Although a part of the relaxation-rate increase in Pr3+:Y

Second- and third-generation cephalosporins, notably cefotetan, are increasingly implicated in severe, sometimes fatal immunemediated hemolytic anemia. We describe a 26-year-old woman who developed severe hemolytic anemia 2 weeks after receiving a single prophylactic dose of cefotetan during cesarean delivery. The patient's DAT was weakly reactive for IgG and her serum reacted with cefotetan-coate

Gastrointestinal stromal tumors (GISTs), the most common mesenchymal tumors of the digestive tract, are believed to arise from the interstitial cells of Cajal. GISTs are characterized by mutations in the proto-oncogene KIT that lead to constitutive activation of its tyrosine kinase activity. The tyrosine kinase inhibitor STI571, active against the BCR-ABL fusion protein in chronic myeloid leukemia