No abstract available
Journal
Journal of the American Chemical Society; ISSN 0002-7863; 
; (1Jan2001issue); [v p.]
; (1Jan2001issue); [v p.]
No abstract available
Journal
Journal of the American Chemical Society; ISSN 0002-7863; ; (1Jan2001issue); [v p.]
; (1Jan2001issue); [v p.]
[en] Neuroblastoma x glioma hybrid cells were generated by cell fusion of the 6-thioguanine-resistant clonal mouse neuroblastoma cells and the bromodeoxyuridine-resistant rat glioma cells, selection, and cloning. Every characteristics generally ascribed to neurons has been observed with the hybrid cells. The paper explores the morphological differentiation of hybrid cells, procedures for testing the hormonal regulation of intracellular levels of cyclic, [3H]AMP in hybrid cells, hormonal regulation of adenylate cyclase in homogenates of hyrbid cells, intracellular levels of cyclic GMP, and uptake of guanidinium ions in hybrid cells
Journal
[en] Single molecule magnets (SMM) deposited in submonolayers and monolayers have been analyzed with respect to their structures by means of non-contact AFM (topographic as well as damping mode) and Kelvin Probe Force Microscopy with molecular resolution
Journal
Journal of Physics. Conference Series (Online); ISSN 1742-6596; ; v. 488(13); [1 p.]
; v. 488(13); [1 p.]
[en] In radiotherapy to an increasing degree radiobiological aspects of the tumor behaviour during therapy are realized in daily routine. An example for this is the so called hyperfractionation of the total dose; that means multiple small fractions are applied. Doses of as low as circa 40 cGy per field are necessary. This investigation affects the constancy and the behaviour of the following beam parameters of various treatment units during the initial stage of operation (circa ten seconds): energy of bremsstrahlung, symmetry, flatness and proportionality of dose. (orig.)
[de]
In zunehmendem Masse werden Erkenntnisse der Strahlenbiologie hinsichtlich des Tumorvorhaltens waehrend der Strahlentherapie in der taeglichen Routine realisiert. Ein Beispiel hierfuer ist die sogenannte hyperfraktionierte Applikation der Gesamtdosis, das heisst, eventuell werden taeglich mehrere kleine Einzelfraktionen eingestrahlt: Dosiswerte von unter Umstaenden nur 40 cGy pro Einzelfeld sind erforderlich. Untersucht wurde die Konstanz und das Verhalten folgender Strahlenfeldparameter waehrend dieser kurzen Strahlzeit (zirka zehn Sekunden) an verschiedenen Bestrahlungsgeraeten: Energie, Symmetrie, Feldausgleich und Dosisproportionalitaet. (orig.)Journal
[en] We present the status of new experimental studies of X-ray absorption spectroscopy, magnetic circular dichroism in photoemission and spin-resolved photoelectron spectroscopy of Mn6Cr single-molecule magnet systems by use of circularly-polarized synchrotron radiation of the electron storage rings in Maxlab Lund, Sweden und BESSY, Berlin, Germany.
Journal
Journal of Physics. Conference Series (Online); ISSN 1742-6596; ; v. 194(2); [1 p.]
; v. 194(2); [1 p.]
[en] The ionic single-molecule-magnet [MnIII6CrIII]3 with corresponding three counterions has been deposited on different surfaces and studied with respect to its structure and its electronic and magnetic properties. This is the first time that spin polarization of photoelectrons ejected by means of circularly polarized synchrotron radiation has been measured in a single-molecule-magnet.
Journal
Journal of Physics. Conference Series (Online); ISSN 1742-6596; ; v. 388(2); [1 p.]
; v. 388(2); [1 p.]
[en] It is demonstrated that local magnetic moments of single molecule magnets (SMM) normally studied by XMCD at very low temperatures and high magnetic fields can be measured by means of spin-resolved electron emission in the paramagnetic phase at room temperature by use of circularly polarized radiation
Journal
Journal of Physics. Conference Series (Online); ISSN 1742-6596; ; v. 488(13); [1 p.]
; v. 488(13); [1 p.]