........................................................................................................................ 1 Résumé .......................................................................................................................... 2 Acknowledgement ........................................................................................................ 4 Table of contents ....

The effects of Ni(II) and Co(II) on the activated sludge growth rate have been assessed for a batch growth system, for a range of concentrations between 0 and 320 mg L(-1). The activated sludge was not acclimatized to the above metallic species, while a synthetic rich growth medium was used as substrate throughout out the experimental trials. Ni(II) and Co(II) have been found to stimulate micro...

BACKGROUND AND PURPOSE Recanalization status after intravenous thrombolysis (IVT) in patients with ischemic stroke is a reference point to proceed with a rescue reperfusion intervention, although early neurological improvement (NI) may preclude endovascular procedures. We aimed to evaluate the importance of restoration of blood flow at the arterial occlusion site in subgroups of patients with s...

Two distinct coordination geometries are found in the binuclear title complex, [Ni(2)(C(13)H(19)N(2)O(2))(2)(N(3))(2)(CH(3)OH)], as one Schiff base ligand is penta-dentate, coordinating via the anti-cipated oxide O, imine N and amine N atoms (as for the second, tridentate, ligand) but the oxide O is bridging and coordination also occurs through the meth-oxy O atom. The Ni(II) atoms are linked b...

Nickel subsulfide (Ni:S ) was injected in various amounts into the testis of adult Fischer rats for the study of the acute and chronic effects of Ni S on testicular cells. Rats given injections of 0.6 to 10 mg of Ni;S developed an immediate inflammatory response at the site of injection, followed by a delayed, slowly evolving coagulation necrosis of seminiferous tubules and intersti tial cells....

Children can be exposed to toxic elements in toys and jewelry following ingestion. As, Cd, Cu, Ni, Pb, and Sb bioavailability was assessed (n = 24) via the in vitro gastrointestinal protocol (IVG), the physiologically based extraction test (PBET), and the European Toy Safety Standard protocol (EN 71-3), and health risks were characterized. Cd, Cu, Ni, and Pb were mobilized from 19 metallic toys...

This paper reports an effective method to enhance the surface plasmon resonance (SPR) on Ag films by using a thin Ni seed layer assisted deposition. Ag films with a thickness of about 50 nm were deposited by electron beam evaporation above an ultrathin Ni seed layer of approximately 2 nm on both silicon and quartz substrates. The root-mean-square (rms) surface roughness and the correlation leng...

A detailed experimental investigation of the (19)F nuclear magnetic resonance is made on single crystals of the homometallic Cr8 antiferromagnetic molecular ring and heterometallic Cr7Cd and Cr7Ni rings in the low temperature ground state. Since the F(-) ion is located midway between neighboring magnetic metal ions in the ring, the (19)F-NMR spectra yield information about the local electronic ...

a1n∗1 ,n ∗ 2 ,...,n ∗ N ≥ a1n1,n∗2 ,...,nN ∀ ni ∈ M1 Department of Industrial Engineering, University at Buffalo, 301 Bell Hall, Buffalo, NY 142602050 USA; E-mail: [email protected]; Web: http://www.acsu.buffalo.edu/ ̃bialas. Copyright c © MMIII Wayne F. Bialas. All Rights Reserved. Duplication of this work is prohibited without written permission. This document produced March 10, 2003 at 12:19...

A convergence result for a 'generalized Richardson extrapolation process is improved .upon considerably and additional results of interest are'proved. An application of practical importance is also given. T ec hn io n C om pu te r Sc ie nc e D ep ar tm en t T eh ni ca l R ep or t C S0 53 0 19 88