blood pressure in hypertensive rau. Clin Exp Pharmacol Physiol Suppl 2: 201-205, 1975 15. Furchgott RF, Bhadrakom S: Reactions of strips of rabbit aorta to epinephrine, isopropylarterenol, sodium nitrite and other drugs. J Pharmacol Exp Ther 108: 129-143, 1953 16. Rondell P, Gross F: Method for isometric recording from isolated vessels under various conditions. Helv Physiol Acta 18: 366-375, 19...

Motivated by a recently observed unusual magnetoresistance in sliver chalcogenides, we propose a mechanism for large magnetoresistance in nonmagnetic materials. We show that the Zeeman splitting can play a very important role in MR under certain conditions. In general, the electron density of states can be divided into two parts, one for spin-up electrons and the other for spindown. The two par...

Daar bestaan heelwat verwarring oor die kriteria wat op professionele status toegepas word sow el as oor die korrekte gebruik van die woord “ professie” o f “ beroep” . Dit het onsekerheid by verpleegsters veroorsaak waarvoor daar sow el in Suid-A frika as in ander lande geen grond bestaan nie. Yerpleging word alte dikwels volgens die tradisionele beeld van vroeére professioneles b eoord eel va...

Zeeman patterns of red and infrared lines of nitrogen and oxygen, as observed in magnetic fields of 35,000 and 86,000 gausses, at the National Bureau of Standards and the Massachusetts Institute of Technology, respectively, show various degrees of distortion due to Paschen-Back interaction. The interpretation of these patterns has afforded an interesting application of quantum theory to the elu...

A lkoholh a lt ig ;! preparat: ang. u p p ly s n in g a r ifräga om la g s t i f tn in g e n ang. alko­ holhaltigst p roparat m. m .: A n :r 230. Allm än a v ly sn in g : A n a i s 98, 103 och 217. A llm än e f t e r ly s n in g : A m ris 13. 22, 23. 20, 33, 41, 30, 64. 74, 91, 113, 128, 163, 248. A n to m o b il tr a t ik : ang. gä l lande s ta d g a n d o n om: A n :r 2: ang . fö ro rd n ad e...

Glass sample of Zinc Lithium Bismuth Borate (25−x) Bi2O3:20Li2O:20ZnO:35B2O3:xPr6O11, (where x = 1, 1.5 and 2 mol%) has been prepared by melt-quenching technique. The amorphous nature of the prepared glass samples was confirmed by X-ray diffraction. The absorption spectra of three Pr3+ doped zinc lithium bismuth borate glasses have been recorded at room temperature. The observed optical spectra...

Effects of initial size on the growth and survival of a freshwater fish, Chondrostoma nasus, were tested in a field survey, where individually tagged larvae were introduced into a potential nursery habitat. Characteristics of individual daily growth trajectories were utilized as a basis to explain growth, as well as survival patterns, in relation to ontogeny. Initial size only affected growth r...