Helium in superstrong magnetic fields

We investigate the helium atom embedded in a superstrong magnetic field gamma=100-10000 au. All effects due to the finite nuclear mass for vanishing pseudomomentum are taken into account. The influence and the magnitude of the different finite mass effects are analyzed and discussed. Within our full configuration interaction approach calculations are performed for the magnetic quantum numbers M=0,-1,-2,-3, singlet and triplet states, as well as positive and negative z parities. Up to six excited states for each symmetry are studied. With increasing field strength the number of bound states decreases rapidly and we remain with a comparatively small number of bound states for gamma=10^4 au within the symmetries investigated here.Comment: 16 pages, including 14 eps figures, submitted to Phys. Rev.

Selfgetuienis en interpretasie

Self-evidence and interpretationHermeneutics has become a major issue in current theological thought. It is quite apparent that the interpretation of Holy Scripture is one of the most often discussed subjects amongst theologians. As to the authority of the Bible, its self-evidence is a particularly noticeable factor. This in turn has a direct bearing on the explicatio and applicatio of Scripture in preaching, and consequently on the very life of the church. It is argued that, even though the human factor should not be minimized, God Himself is subject of his Word in those various statures in which it addresses mankind

Wat beteken ‘die Bybel sê’? ’n Tipologie van leserskonstrukte

What does ‘the Bible says’ mean? A typology of reader constructsIt is argued that the unity of the Bible, so important to (Reformed) theology, ethics and life, is inevitably the result of constructs on the part of reader communities. A typology of such constructs is suggested, organising of ‘the Bible’ in diverse ways, in order to facilitate discussion between systematic theologians and biblical scholars

Selfgetuienis en interpretasie

Self-evidence and interpretation Hermeneutics has become a major issue in current theological thought. It is quite apparent that the interpretation of Holy Scripture is one of the most often discussed subjects amongst theologians. As to the authority of the Bible, its self-evidence is a particularly noticeable factor. This in turn has a direct bearing on the explicatio and applicatio o f Scripture in preaching, and consequently on the very life of the church. It is argued that, even though the human factor should not be minimized, God Himself is subject of his Word in those various statures in which it addresses mankind

Wat beteken ‘die Bybel sê’? ’n Tipologie van leserskonstrukte

What does ‘the Bible says’ mean? A typology of reader constructs It is argued that the unity of the Bible, so important to (Reformed) theology, ethics and life, is inevitably the result of constructs on the part of reader communities. A typology of such constructs is suggested, organising of ‘the Bible’ in diverse ways, in order to facilitate discussion between systematic theologians and biblical scholars

Boekbespreking

Van Wyk, G.M.J - Enbelbrecht, E. 1987. The pattern of religion in the black theology of James ConeVan Wyk, I.W.C - Veldsman, D.P. 1989. Etisering - personalisering - eksistensialisering van die geloofsbegripEngelbrecht, E. - Luethi, W. 1988. Johannes. Das Vierte Evangelium: Wir sahen seine HerrlichkeitKoekemoer, J.H. - De Crunchy, J. 1988. Dietrich Bonhoeffer: Witness to Jesus ChristLabuschagne, J.P. - Van der Walt, B.J. (red) 1989. Kerk en samelewing: ’n KommentaarPont, A.D. - Spoelstra, B. 1989. Gereformeerde kerkreg en kerkregering: ’n Handboek by die KerkordePont, A.D. - Hofmeyr, J.W. 1988. Die Nedertandse Nadere Reformasie en sy invloed op twee kontinente: ’n Vergelyking van die invloed en deurwerking van enkele aspekte van die Nederlandse Nadere Reformatie in die Suid-Arikaanse en Noord-Amerikaanse konteksteSmith, D.J. - De Bruyn, P.J. (samest) 1988. Waar paaie saamwoon: Opgedra aan prof P.W. BuysVan der Merwe, J.C. - Valenkamp, M. 1989. Die sin van ons bestaanVan der Westhuizen, H.G. - Hubmer, F. 1987. Endzeit Prophetie: Die Aktualitat der Zukunftsreden Jesu ChristiVan Zyl, F.J. - Hubmer, F. 1987. Der Heilsplan Gottes: Schopfung, Erlosung, Vollendun

Thermal Regeneration of Sulfuric Acid Hydrates after Irradiation

In an attempt to more completely understand the surface chemistry of the jovian icy satellites, we have investigated the effect of heating on two irradiated crystalline sulfuric acid hydrates, H2SO4 4H2O and H2SO4 H2O. At temperatures relevant to Europa and the warmer jovian satellites, post-irradiation heating recrystallized the amorphized samples and increased the intensities of the remaining hydrate's infrared absorptions. This thermal regeneration of the original hydrates was nearly 100% efficient, indicating that over geological times, thermally-induced phase transitions enhanced by temperature fluctuations will reform a large fraction of crystalline hydrated sulfuric acid that is destroyed by radiation processing. The work described is the first demonstration of the competition between radiation-induced amorphization and thermally-induced recrystallization in icy ionic solids relevant to the outer Solar System

Micropaleontology of Upper Cretaceous-- Lower Tertiary of North Iraq

Imperial Users onl

Boekbespreking

Van der Westhuizen, H.G. - Gericke, EM 1989. Die rol van Die Hervormer as kommunikasiemedium tussen kerk en lidmaat: ’n Leserkundige ondersoekCoertze, R.D. - Janse van Rensburg, N.S. 1989. Die wet het van my ’n Kleurling gemaak: Die houdbaarheid van statutêre bepaling van KleurlingskapDe Beer, P.J. - Van der Walt, B. 1984 - Ideologiese stryd in Suider-Afrika! Vlugvirdie afgode!Engelbrecht, J.J. - De Wet, D.R. 1989. Biblical studies leaching: A new perspectiveGericke, J.D. - Schlichting, W. 1989. Selbstfindung - GottfindungLabuschagne, J.P. - Van Wyk, J.A. 1988. ’n Christelike etiek van die arbeidLabuschagne, J.P. - Antonides, H. 1989. A Christian perspective on work and labour relationsPont, A.D. - Van’t Spijker, W. & Van Drimmelen, L.C. (reds). Inleiding tot de studie van het kerkrechtVan Wyk, B.J. - Schlichting, W. & Koberlin, A. 1989. Fragwurdiges Kairos-dokumentVan Wyk, D.J.C. - Abma, G. & De Bruijn, J. (reds) 1989. Hoedemaker herdachtVan Wyk, I.W.C. - Hubmer, F. 1989. Weltreich und GottesreichVorster, W.S. - Kodjak, A. 1986. A stuctural analysis of the sermon on the moun