Daar is vier biljoen mense in die wêreld. Veertig miljoen van hulle is blind. As die verhouding tussen bevolkingsaanwas en blindheid nie verm inder nie, sal die syfer teen die einde van die eeu verdubbel wees. Ten minste 80% van die wêreld se blindheid kom voor in die ontwikkelende lande van A sië, Afrika en Latyns-Am erika. Die Internasionale Agentskap vir die Voorkom ing van Blindheid (I .A ....

Commentary The verification of laboratory-developed tests aims to characterize and compare the diagnostic accuracy of a new method to that of a reference one accepted by the laboratory community as the standard of care for a particular analyte or disease. The article entitled " Evaluation of a PCR assay to detect Enterococ-cus faecalis in blood and determine glycopeptides resistance genes: Van ...

Tipping, E. & Ketterer. B. (1981) Biochem. J . 195. 441-452 Van Der Vusse, G. J.. Roemen, T. H. M., Flameng, W. & Reneman. R. S. (1983) Biochim. Eiophvs. Acta 752. 361---370 Veerkamp, J. H. & Van Moerkerk. H. T. B. (1986) Biochim. Biophys. Acta 875, 301-310 Veerkamp, J . H., Van Moerkerk, H. T. B.. Glatz, J . F. C. & Van Hinsbergh, V. W. M. (1983) Biochim. Biophy.r. Acia 753. 399 410 Weisiger, ...

in this study a simple and general chemical association theory is introduced. the concept of infinite equilibrium model is re-examined and true mole fractions of associated species are calculated. the theory is applied to derive the distribution function of associated species. as a severe test the application of presented theory to the van der waals mixture model is introduced in order to perfo...

Riemann-Problem and Level-Set Approaches for Homentropic Two-Fluid Flow Computations B. Koren,∗ M. R. Lewis,∗,1 E. H. van Brummelen,∗,2 and B. van Leer†,1 ∗CWI, P.O. Box 94079, 1090 GB Amsterdam, The Netherlands; and †University of Michigan, Department of Aerospace Engineering, Ann Arbor, Michigan 48109-2140 E-mail: [email protected], [email protected], [email protected], and br...

mitters, blood pressure and heart rate during supine-resting, orthostasis and moderate exercise stress test in healthy humans before and after parasympathetic blockade with atropine. Res Comm Biol Psychol Psychiatry 1996; 21:55–72 11 Dupont LJ, Pype JL, Dernedts MG, et al. The effects of 5-HT on cholinergic contraction in human airways in vitro. Eur Respir J 1999; 14:642–649 12 Cazzola M, Mater...