Quest for Better Preaching

Reviewed Book: Marquardt, Edward F. Quest for Better Preaching. Minneapolis: Augsburg Publishing House, 1985

The name of Jesus

Luke 2:2

Unity of the spirit

Historical series, 9. Sermon delivered at the bieenial assembly of the Eastern Synod of the Evangelical Lutheran Church in Canada, Brock Univ, St Catharines, Ontario, 2004. Isa 2:2-4; Acts 1:6-11; Lk 10: 1-12, 17-20

Llif yr atmosffer drydanol dros begwn y gogledd: arsylwadau tomograffi radio a SuperDARN

The paper investigates the structure and behaviour of the nighttime ionised (electrified) atmosphere in the polar and auroral regions; the region where the aurora borealis occurs. Of particular interest are plasma structures on horizontal scales of hundreds of kilometres. The observations presented were made by the radiotomography experiment of the University of Wales, Aberystwyth, which has four satellite receiving systems in the high Arctic near the north pole, at Ny Ålesund and Longyearbyen on Svalbard, Bjørnøya (Bear Island) and Tromsø on mainland Norway. Comparisons of tomography images with observations of plasma flow by the international SuperDARN radar suggest that large density plasma produced on the dayside flows across the polar region and into the night sector. The results contribute to the interpretation of physical processes that couple the Earth's environment with space, and are also of interest to users of radio systems where the ionised atmosphere can degrade the propagation of the signals

Seasonal dependency of polar cap patches in the high-latitude nightside ionosphere

Observations and a computer simulation were used to investigate the seasonal dependency of the occurrence of polar cap patches in the high-latitude nightside ionosphere together with the relative importance of the driving processes. Measurements were conducted above northern Scandinavia around solar maximum (1999-2001) under conditions predicted to be favourable for observing patches with the EISCAT Svalbard Radar (ESR). The requirements were that the ESR was poleward of the convection reversal boundary, in antisunward cross polar cap flow and that IMF Bz was predominantly negative. The high latitude convection pattern was inferred from the Super Dual Auroral Radar Network (SuperDARN) and the IMF was taken from the Advanced Composition Explorer (ACE) spacecraft. In each study the patch-to-background ratio was calculated and, in most of the winter cases, this ratio was greater than two consistent with a polar cap patch. In summer clear electron density enhancements were seen in the nightside ionosphere, but the patch-to-background ratio was less than two. While these enhancements could not formally be called patches, it was clear that the high-latitude convection pattern was responsible for electron density enhancements. Using a computer simulation the relative importance of the physical processes driving the variation in the patch-to-background ratio was investigated. The dominant factor was changes in the thermospheric composition influencing plasma production and recombination rates

Studies on the beta-Adrenergic Receptor of Sheep Adipose Tissue

The beta-adrenergic receptor of sheep adipose tissue was studied in adipose tissue membranes and partially-purified preparations, to determine some of its basic structural and pharmacological properties. The work in sheep was complemented with studies on the beta-adrenergic receptor of rat adipocytes, to compare the beta-receptors in these two species. The key findings of the study can be summarised as follows