Streaming Potential Studies on Rutile

This investigation was undertaken to determine some of the electrokinetic properties exhibited by rutile in solutions of various electrolytes. Results presented in this thesis are for rutile in solutions of conductivity water and in potassium chloride solutions. The data obtained in this investigation are presented graphically in the body of the thesis and are tabulated in the appendix for convenience

Kinetics and Penetration into Inflammatory Tissue Cage Fluid of Cefepime Administered to Rabbits

The kinetics and penetration of cefepime into inflammatory tissue cage fluid were determined in rabbits.  Ten adult healthy rabbits were used. Concentrations of cefepime were measured in serum and induced  inflammatory exudate by biological methods. The kinetic analysis was performed by mean of a non-compartmental  model. Pharmacokinetic results in serum (S) and inflammatory tissue cage fluid (ITCF) (means  ± standard error) were: half life of elimination [t1\2 (S) ]= 1.6 ± 0.2 and (ITCF) 3.7 ± 0.3 h; area under the  curve [AUC (S)]= 225.3 ± 21.4 and (ITCF) 208.0 ± 13.6 (μg/ml/h]; maximum concentration [Cmax (ITCF)]=  37.7 ± 3.6 μg/ml and time to reach Cmax [tmax (ITCF)]= 1.8 ± 0.4 h and the penetration into inflammatory  tissue cage fluid [P (ITCF)] = 92.3 ± 8.7 %. In conclusion, the cefepime administered to rabbits penetrate  rapidly and nearly completely into inflammatory tissue cage fluid.

Gains from the upgrade of the cold neutron triple-axis spectrometer FLEXX at the BER-II reactor

The upgrade of the cold neutron triple-axis spectrometer FLEXX is described. We discuss the characterisation of the gains from the new primary spectrometer, including a larger guide and double focussing monochromator, and present measurements of the energy and momentum resolution and of the neutron flux of the instrument. We found an order of magnitude gain in intensity (at the cost of coarser momentum resolution), and that the incoherent elastic energy widths are measurably narrower than before the upgrade. The much improved count rate should allow the use of smaller single crystals samples and thus enable the upgraded FLEXX spectrometer to continue making leading edge measurements.Comment: 8 pages, 7 figures, 5 table