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Paraphrasen zu A. E.
(1997)
Erinnerung an vergessene Befunde der empirischen Schulforschung zum Übergang auf die Sekundarstufe
(1997)
Ausgewählte brandenburgische Ergebnisse der Studie "Neue Konzepte für Kindertageseinrichtungen"
(1997)
Theodizee bei Kant und Cohen
(1997)
DO in Contact?
(1997)
Periphrastic English constructions involving the verbs BE/HAVE + a nominalised verb form expressing [+imperfectivity] and [+perfectivity] have close analogues in the Insular Celtic languages, where Celtic analogues of the English verb BE + a prepositional construction marker + Verbal Noun are used. The two constructions in English and teh Celtic languages are not identical and cannot be so, because the Celtic languages do not feature present and past participles and English has no verbal nouns. But the two types of the periphrastic mode of expressing aspect are close enough to suggest either a shift scenario, a borrowing scenario and/or an areal spread by diffusion over a long period of time. Since Old English did not mark aspect, neither morphologically nor syntactically, but Old Welsh and Old Irish already did so syntactically, it is suggested here that a unilateral transfer process was involved here, which proceeded from the Celtic languages to the English language. Aspectual transfer is even more pronounced in the so-called 'Celtic Englishes,' where in addition to the periphrastic marking of [+ imperfectivity] and [+perfectivity] the marking of [+habituality] is a grammaticalised feature and is periphrastically expressed.
The great Old English epic 'Beowulf' has been dated to practically every century between the 6th and the 11th century, depending on the criteria of dating adopted and the approaches advocated by the respective scholars. As the text successfully avoids to provide definite cues or evidence for a definitive date, these scholarly attempts reveal more about the respective scholars' research interests than offering uncontroversial dates. The point of dating 'Beowulf' then seems to provide scholars with the opportunity to anchor their own personal understanding of the poem within the century of their own personal predilection.
At the suggestion of the then editor of 'Studia Celtica Japonica,' Professor Toshio Doi, this bibliography lists the returns of a questionnaire sent to all scholars in Germany who were actively involved in Celtic Studies between 1980 and 1995. They were asked to list all their publications in the field of Celtic Studies, so as to allow to carry out a survey of their research activities during this period. While most scholars kindly obliged by returning their lists, there were notable exceptions who never answered the query. Regretably, the present bibliography therefore contains important gaps, which, however, may be quite telling as far as the research situation in Germany was concerned during that period.
Majakovskij, Vladimir
(1997)
Leskov, Nikolaj
(1997)
Malum metaphysicum, malum morale, malum physicum : zur Analytik der Übel im Achluß an Leibnitz
(1997)
A weak-mode representation of floppy molecules. IV. Spectroscopic states of model HCN and CNH
(1997)
Attractor-repeller collision and eyelet intermittency at the transition to phase synchronization
(1997)
The chaotically driven circle map is considered as the simplest model ofphase synchronization of a chaotic continuous-time oscillator by external periodic force. The phase dynamics is analyzed via phase-locking regions of the periodic cycles embedded in the strange attractor. It is shown that full synchronization, where all the periodic cycles are phase locked, disappears via the attractor-repeller collision. Beyond the transition an intermittent regime with exponentially rare phase slips, resulting from the trajectory's hits on an eyelet, is observed.
C-terminally deleted fragments of 40-kDa earthworm actin modulator still shows gelsolin activities
(1997)
We investigate the cognitive control in polyrhythmic hand movements as a model paradigm for bimanual coordination. Using a symbolic coding of the recorded time series, we demonstrate the existence of qualitative transitions induced by experimental manipulation of the tempo. A nonlinear model with delayed feedback control is proposed, which accounts for these dynamical transitions in terms of bifurcations resulting from variation of the external control parameter. Furthermore, it is shown that transitions can also be observed due to fluctuations in the timing control level. We conclude that the complexity of coordinated bimanual movements results from interactions between nonlinear control mechanisms with delayed feedback and stochastic timing components.
Langmuir-Blodgett films of bolaamphiphiles with reactive head groups can be used for the surface modification of composite membranes for gas separation processes. The scope of our investigations was to get a detailed insight in the monolayer behaviour and LB film structure of previously synthesized bisaroyl azide bolaamphiphiles. The layers have been analyses by means of surface potential measurements and Brewster angle microscopy. Furthermore parameters for a successful LB Film deposition were found. As expected for a molecule with two hydrophilic ends the transfer ratio on upstroke was close to one and on downstroke no transfer occurred. The multilayer structure was analysed by scanning force microscopy and X-ray reflectivity measurements. The SFM images revealed a periodic in plane structure on molecular level. Based on a combination of the X-ray data with results of other methods two possible models of the multilayer structure are presented
Control of noise-induced oscillations of a pendulum with a rondomly vibrating suspension axis
(1997)
The thermal treatment of Y-type Langmuir-Blodgett (LB) films formed from the amphiphilic derivative of 2,5- diphenyl-1,3,4-oxadiazole 1 results in changes of the molecular packing. These changes have been analysed by a combination of X-ray specular reflectivity data, X-ray grazing incidence diffraction data and scanning force microscopy images, On the basis of these experimental data we have simulated possible supramolecular structures, These simulations provide insight into the intermolecular interactions giving rise to the observed structural transitions. The crystalline structure induced by thermal treatment of the LB films is characterized by a uniaxial texture, which is correlated with the dipping direction during deposition of the LB film.
The molecular in-plane structure of uranyl arachidate Langmuir-Blodgett (LB) films formed at different subphase pH values was analysed by means of X-ray grazing-incidence diffraction. For multilayers formed at low subphase pH a reorganisation of the arachidic acid film structure is confirmed. At appropriate subphase pH values, reorganisation of the film structure, e.g. via the formation of three-dimensional crystallites, is prevented by the presence of the uranyl ions and by the subsequent introduction of conformational disorder (gauche defects) in the alkyl chains. The observation of a macroscopic flow-induced in-plane texture in these uranyl arachidate LB films has profound implications for the design of ordered, supramolecular structures by the Langmuir-Blodgett technique.
Langmuir-Blodgett films of zinc 11,18,25-tri(tert-butyl)-4-sulfo-phthalocyanine (ZNPctSO3Na) have been deposited onto hydrophilic and hydrophobic silicon wafers. Y-type films were formed on both types of substrate, and the transfer ratio was very close to unity. The organization of the films on the molecular level was probed by X-ray specular reflectivity.