Focal plane transport assembly for the HEAO-B X-ray telescope

The High Energy Astronomy Observatory - Mission B (HEAO-B), an earth orbiting X-ray telescope facility capable of locating and imaging celestial X-ray sources within one second of arc in the celestial sphere, is considered. The Focal Plane Transport Assembly (FPTA) is one of the basic structural elements of the three thousand pound HEAO-B experiment payload. The FPTA is a multifunctional assembly which supports seven imaging X-ray detectors circumferentially about a central shaft and accurately positions any particular one into the focus of a high resolution mirror assembly. A drive system, position sensor, rotary coupler, and detent alignment system, all an integral part of the rotatable portion which in turn is supported by main bearings to the stationary focal plane housing are described

Bosch CO2 Reduction System Development

Development of a Bosch process CO2 reduction unit was continued, and, by means of hardware modifications, the performance was substantially improved. Benefits of the hardware upgrading were demonstrated by extensive unit operation and data acquisition in the laboratory. This work was accomplished on a cold seal configuration of the Bosch unit

A carbon dioxide reduction unit using Bosch reaction and expendable catalyst cartridges

Catalytic carbon dioxide reduction cartridge for oxygen recovery in life support systems of long term manned space flight

Financial market turbulences – the situation in Germany

The article studies the turbulences on the world financial markets, which were caused by the turnaround on the US mortgage market leading to a significant increase of default rates, the further turmoil on the markets for asset backed securities and serious liquidity troubles in the banking sector. The following paper tries to highlight some reasons for the turbulences on financial markets which seem to challenge the banking sector so much. Furthermore the impacts on the German banking sector and on the German economy at all are addressed. Дана стаття досліджує дестабілізацію на світових фінансових ринках, яка була викликана кризовими явищами на іпотечному ринку США і привела до різкого зростання дефолтяв, хаосу на ринку цінних паперів, забезпечених активами, а також проблем з ліквідністю у банківському секторі. У статті розглядаються причини турбулентності на фінансових ринках, їх вплив на банківський сектор Німеччини, а також всю економіку цієї країни

Financial market turbulences - some remarks.

В статье представлен краткий обзор недавней турбулентности финансового рынка, начавшейся в августе 2007г., и ее воздействия на финансовые рынки в пределах Еврозоны. Освещаются некоторые причины турулентности на финансовых рынках, которые оказывают значительное влияние на банковский сектор. Начавшись на американском жилищном рынке, кризис перешел от ипотечного рынка к рынку ценных бумаг, обеспеенных активамии, как результат, приел к проблемам на межбанковском рынке кредитования. Упомянутые проблемы для банковского сектора могут так же оказывать внешнее воздействие на реальный сектор экономии. После анализа причин кризиса в статье представлены общие выводы о возможных уроках на будущее

Financial market turbulences – the situation in Germany

The article studies the turbulences on the world financial markets, which were caused by the turnaround on the US mortgage market leading to a significant increase of default rates, the further turmoil on the markets for asset backed securities and serious liquidity troubles in the banking sector. The following paper tries to highlight some reasons for the turbulences on financial markets which seem to challenge the banking sector so much. Furthermore the impacts on the German banking sector and on the German economy at all are addressed. Дана стаття досліджує дестабілізацію на світових фінансових ринках, яка була викликана кризовими явищами на іпотечному ринку США і привела до різкого зростання дефолтяв, хаосу на ринку цінних паперів, забезпечених активами, а також проблем з ліквідністю у банківському секторі. У статті розглядаються причини турбулентності на фінансових ринках, їх вплив на банківський сектор Німеччини, а також всю економіку цієї країни

Stellar Associations and their Field East of LMC 4 in the Large Magellanic Cloud

We report about the stellar content and the luminosity and mass functions of three stellar associations and their field located on the north-east edge of the super-bubble LMC 4 in the Large Magellanic Cloud.Comment: To be appeared in the meeting Proceedings of ``Modes of Star Formation and the Origin of Field Populations'', Heidelberg, Germany, October 2000; to be published in the ASP Conference Series, edited by E. K. Grebel and W. Brandne

Polymorphism of the tumor necrosis factor beta gene in systemic lupus erythematosus

We investigated the Nco I restriction fragment length polymorphism (RFLP) of the tumor necrosis factor beta (TNFB) gene in 173 patients with systemic lupus erythematosus (SLE), 192 unrelated healthy controls, and eleven panel families, all of German origin. The phenotype frequency of the TNFB*I allele was significantly increased in patients compared to controls (63.6% vs 47.1%, RR = 1.96, p <0.002). The results of a two-point haplotype statistical analysis between TNFB and HLA alleles show that there is linkage disequilibrium between TNFB*I and HLA-A1, Cw7, B8, DR3, DQ2, and C4A DE. The frequency of TNFB*I was compared in SLE patients and controls in the presence or absence of each of these alleles. TNFB*I is increased in patients over controls only in the presence of the mentioned alleles. Therefore, the whole haplotypeA1, Cw7, B8, TNFB* I, C4A DE, DR3, DQ2 is increased in patients and it cannot be determined which of the genes carried by this haplotype is responsible for the susceptibility to SLE. In addition, two-locus associations were analyzed in 192 unrelated healthy controls for TNFB and class I alleles typed by serology, and for TNFB and class II alleles typed by polymerase chain reaction/oligonucleotide probes. We found positive linkage disequilibrium between TNFB*I and the following alleles: HLA-A24, HLA-B8, DRBI*0301, DRBI*ll04, DRBI*1302, DQAI*0501, DQBI*0201, DQBI*0604, and DPBI*OIO1. TNFB*2 is associated with HLA-B7, DRBI*1501, and DQB I *0602

Evolution from a molecular Rydberg gas to an ultracold plasma in a seeded supersonic expansion of NO

We report the spontaneous formation of a plasma from a gas of cold Rydberg molecules. Double-resonant laser excitation promotes nitric oxide, cooled to 1 K in a seeded supersonic molecular beam, to single Rydberg states extending as deep as 80 cm$^{-1}$ below the lowest ionization threshold. The density of excited molecules in the illuminated volume is as high as 1 x 10$^{13}$ cm$^{-3}$. This population evolves to produce prompt free electrons and a durable cold plasma of electrons and intact NO$^{+}$ ions.Comment: 4 pages (two column) 3 figures; smaller figure files, corrected typo