In this study, Reactive Black 5 (RB5) was removed from synthetic wastewater using Fenton's oxidation (FO) process. Experiments were conducted on the samples containing 100 and 200 mg l(-1) of RB5 to remove the dye toxicity. Seventy-five milligram per litre of RB5 caused 25% toxicity on 24-h born daphnids whereas 100 mg l(-1) of RB5 displayed 100% toxicity on Daphnia magna. The study was perform...

the abscission of alstroemeria petals is the serious problem at the industry of cut flowers of this plant. in this study, cut alstroemeria cv. bridal flowers were pulsed with solutions containing natural essential oil carvacrol, gibberellic acid and benzyladenine (50 and 100 mg l-1), -5-sulfosalicylic acid (1 and 1.5 mm) and sucrose (5 and 10%) for 24 hours. the distilled water was used as cont...

electrophoresis, which has a reported sensitivity of 91% in diagnosing CSF leakage (4 ). For the automated assay from Dade Behring, a range of 0.22–1.69 mg/L for healthy individuals was reported, and a cutoff at 1.31 mg/L (97.5 percentile) was proposed (9 ). At concentrations between 1.31 and 1.69 mg/L, however, there is overlap of individuals without and patients with CSF leakage (9 ). In our ...

Metformin and thiazolidinediones (TZDs) are believed to exert their antidiabetic effects via different mechanisms. As evidence suggests that both impair cell respiration in vitro, this study compared their effects on mitochondrial functions. The activity of complex I of the respiratory chain, which is known to be affected by metformin, was measured in tissue homogenates that contained disrupted...

Enantiomeric stereo random copolymers (SRCs), l-lactic acid-rich poly (lactic acid)s (L -PLAs) and d-lactic (D-PLAs) with major monomer unit fraction down to 85% were synthesized from mixtures of l- acids their stereocomplex (SC)- homo-crystallization the melt investigated. The obtained results compared those previously reported for enantiomeric SRCs, l-lactide-rich (l-lactide-co-d-lactide)s d-...

We report a recessed quantum-well (QW) InAs MOSFET with enhancement-mode operation down to 100 nm gate lengths. The device features a composite insulator consisting of an MBE-grown 2 nm InP barrier plus an ex-situ ALD-deposited 3 nm Al2O3 for an estimated EOT of 2 nm. Our devices exhibit excellent short-channel effects down to the Lg = 100 nm regime. InAs QW MOSFETs exhibit record transconducta...

BACKGROUND Adrenal insufficiency is a complication of transsphenoidal surgery (TSS) for pituitary adenoma, and correct identification of patients requiring glucocorticoid replacement is important. Controversy exists over which early postoperative 9 AM cortisol concentration reliably predicts hypothalamic-pituitary-adrenal (HPA) axis reserve, as defined by the insulin tolerance test (ITT). MET...

The effects of N(G)-monomethyl-L-arginine (L-NMMA), a nitric-oxide synthase (NOS) inhibitor, on the L-type Ca(2+) current (ICa) and NO effects on NOS were determined in rat ventricular myocytes. L-NMMA (10 and 100 microM) had no significant effect on basal ICa, but in a cAMP-stimulated condition due to forskolin (1 microM) or milrinone (10 microM), a cGMP-inhibited cAMP-phosphodiesterase (PDE),...

L-2-methyltryptophan was prepared from L-serine and 2-methylindole catalyzed by recombinant Escherichia coli with tryptophan synthase activity. In the present research, we used tryptophan synthase (TSase) from recombinant Escherichia coli with pET28a-trpBA plasmid expressing tryptophan synthase from Escherichia coli k-12 MG1655 to produce 2-methyltryptophan, and optimized the conditions for enz...