@book{Balderjahn1994, author = {Balderjahn, Ingo}, title = {Stadtmarketing : Ein Konzept f{\"u}r Potsdam?}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-9212}, publisher = {Universit{\"a}t Potsdam}, year = {1994}, abstract = {Inhalt: Was bedeutet eigentlich "Stadtmarketing"? Welche Gr{\"u}nde sprechen f{\"u}r ein Stadtmarketing? Tr{\"a}ger des Stadtmarketing und Organisation Phasen und Methoden der Entwicklung einer Stadtmarketing- Konzeption Strategien und Instrumente des Stadtmarketing}, language = {de} } @book{Balderjahn1994, author = {Balderjahn, Ingo}, title = {Marketing : Philosophie, Methode oder Instrument?}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-9228}, publisher = {Universit{\"a}t Potsdam}, year = {1994}, abstract = {Was ist Marketing {\"u}berhaupt? Ist es eine Philosophie, eine Methode oder ein Instrument? Diese Frage wird beantwortet, um dem Marketing ein erkennbares und pr{\"a}gnantes Profil zu geben.}, language = {de} } @misc{AscherChinReich1994, author = {Ascher, Uri M. and Chin, Hongsheng and Reich, Sebastian}, title = {Stabilization of DAEs and invariant manifolds}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-15625}, year = {1994}, abstract = {Many methods have been proposed for the stabilization of higher index differential-algebraic equations (DAEs). Such methods often involve constraint differentiation and problem stabilization, thus obtaining a stabilized index reduction. A popular method is Baumgarte stabilization, but the choice of parameters to make it robust is unclear in practice. Here we explain why the Baumgarte method may run into trouble. We then show how to improve it. We further develop a unifying theory for stabilization methods which includes many of the various techniques proposed in the literature. Our approach is to (i) consider stabilization of ODEs with invariants, (ii) discretize the stabilizing term in a simple way, generally different from the ODE discretization, and (iii) use orthogonal projections whenever possible. The best methods thus obtained are related to methods of coordinate projection. We discuss them and make concrete algorithmic suggestions.}, language = {en} } @misc{LeimkuhlerReich1994, author = {Leimkuhler, Benedict and Reich, Sebastian}, title = {Symplectic integration of constrained Hamiltonian systems}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-15653}, year = {1994}, abstract = {A Hamiltonian system in potential form (formula in the original abstract) subject to smooth constraints on q can be viewed as a Hamiltonian system on a manifold, but numerical computations must be performed in Rn. In this paper methods which reduce "Hamiltonian differential algebraic equations" to ODEs in Euclidean space are examined. The authors study the construction of canonical parameterizations or local charts as well as methods based on the construction of ODE systems in the space in which the constraint manifold is embedded which preserve the constraint manifold as an invariant manifold. In each case, a Hamiltonian system of ordinary differential equations is produced. The stability of the constraint invariants and the behavior of the original Hamiltonian along solutions are investigated both numerically and analytically.}, language = {en} } @misc{AscherChinPetzoldetal.1994, author = {Ascher, Uri M. and Chin, Hongsheng and Petzold, Linda R. and Reich, Sebastian}, title = {Stabilization of constrained mechanical systems with DAEs and invariant manifolds}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-15698}, year = {1994}, abstract = {Many methods have been proposed for the simulation of constrained mechanical systems. The most obvious of these have mild instabilities and drift problems. Consequently, stabilization techniques have been proposed A popular stabilization method is Baumgarte's technique, but the choice of parameters to make it robust has been unclear in practice. Some of the simulation methods that have been proposed and used in computations are reviewed here, from a stability point of view. This involves concepts of differential-algebraic equation (DAE) and ordinary differential equation (ODE) invariants. An explanation of the difficulties that may be encountered using Baumgarte's method is given, and a discussion of why a further quest for better parameter values for this method will always remain frustrating is presented. It is then shown how Baumgarte's method can be improved. An efficient stabilization technique is proposed, which may employ explicit ODE solvers in case of nonstiff or highly oscillatory problems and which relates to coordinate projection methods. Examples of a two-link planar robotic arm and a squeezing mechanism illustrate the effectiveness of this new stabilization method.}, language = {en} } @misc{KoeberleLaschewsky1994, author = {K{\"o}berle, Peter and Laschewsky, Andr{\´e}}, title = {Hybrid materials from organic polymers and inorganic salts}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-26884}, year = {1994}, abstract = {The prepaparation of amorphous, homogeneous blends of zwitterionic polymers and transition metal salts was investigated. Homogeneous miscibility was achieved in many cases up to equimolar amounts of salt, depending on the anion and cation chosen. Various analytical techniques point to a solid state solution of the inorganic ions in the polymer matrix.}, language = {en} } @misc{Schrader1994, author = {Schrader, Lutz}, title = {Deutschland und die europ{\"a}ische Sicherheitsagenda}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-28999}, year = {1994}, language = {de} } @misc{Hopf1994, author = {Hopf, Diether}, title = {Die Schule und die Ausl{\"a}nderkinder}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36337}, year = {1994}, abstract = {Inhalt: - {\"U}berblick und quantitative Verh{\"a}ltnisse - Die Situation in der DDR - Schul- und Unterrichtsprobleme - Ausl{\"a}nderfeindlichkeit - R{\"u}ckwanderung}, language = {de} } @misc{Hopf1994, author = {Hopf, Diether}, title = {Kindergarten, Vorschule und Grundschule}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-36346}, year = {1994}, abstract = {Inhalt: - Der Elementarbereich - Die Grundschule - Sch{\"u}ler, Schulen, Klassen - Lehrerinnen und Lehrer - Zur Arbeitsweise der Grundschule - Einschulung, Zeugnisse, «Sitzenbleiben», Schulleistungen und {\"U}bergang zur Sekund{\"a}rschule}, language = {de} } @misc{Selting1994, author = {Selting, Margret}, title = {Question intonation revisited : the intonation of conversational questions}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-43179}, year = {1994}, abstract = {Content: 1. Introduction 2. Aim and approach of the present analysis 3. Non-restrictive 'open' conversational questions 4. More restrictive "narrower" questions 5. "Deviant cases" 6. Conclusions}, language = {en} } @article{Lompscher1994, author = {Lompscher, Joachim}, title = {5. Europ{\"a}ische Konferenz f{\"u}r Lehr- und Lernforschung}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {7}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4472}, year = {1994}, language = {de} } @article{Lompscher1994, author = {Lompscher, Joachim}, title = {Learning strategies}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {7}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4506}, year = {1994}, language = {de} } @article{Holzkamp1994, author = {Holzkamp, Klaus}, title = {Lernen. Subjektwissenschaftliche Grundlegung - Einf{\"u}hrung in die Hauptanliegen des Buches}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {8}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4525}, year = {1994}, language = {de} } @article{WeinertHelmke1994, author = {Weinert, Franz E. and Helmke, Andrea}, title = {Wie bereichsspezifisch verl{\"a}uft eine kognitive Entwicklung}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {9}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4568}, year = {1994}, language = {de} } @article{Giest1994, author = {Giest, Hartmut}, title = {Rinderherdenaufgaben - ein Beispiel f{\"u}r Probleml{\"o}seanforderungen in der Grundschule}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {9}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4588}, year = {1994}, language = {de} } @article{Lompscher1994, author = {Lompscher, Joachim}, title = {Lernstrategien}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {9}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4597}, year = {1994}, language = {de} } @article{Lompscher1994, author = {Lompscher, Joachim}, title = {23. Internationaler Kongreß f{\"u}r Angewandte Psychologie}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {9}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4605}, year = {1994}, language = {de} } @book{BalderjahnMennicken1994, author = {Balderjahn, Ingo and Mennicken, Claudia}, title = {Der Umgang von Managern mit {\"o}kologischen Risiken und Krisen : ein verhaltenswissenschaftlicher Ansatz}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-9099}, publisher = {Universit{\"a}t Potsdam}, year = {1994}, abstract = {Inhalt: Umweltbeziehungen und Verantwortungsbewußtsein von Unternehmen -{\"O}kologische Anliegen der Unternehmensumwelt -Verantwortliches Verhalten von Unternehmen -Der Risiko- und Krisenbegriff Subjektive Wahrnehmung und Bewertung von Risiken und Krisen -Subjektive Risikowahrnehmung: Wahrnehmung quantitativer Risikofaktoren,die Wahrnehmung qualitativer Merkmale der Risikoquelle, individuelle Risikodeterminanten -Empirische Studie zur Risikowahrnehmung -Subjektive Krisenbew{\"a}ltigung: Prozesse der Krisenentstehung und -entwicklung, Merkmale der Krisenwahrnehmung durch Manager, Verhaltenswissenschaftliche Theorien zur Krisenbew{\"a}ltigung Risiko- und Krisenmanagement}, language = {de} } @book{OPUS4-999, title = {Das Image von Potsdam aus der Sicht lokaler Unternehmer}, editor = {Balderjahn, Ingo}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10876}, publisher = {Universit{\"a}t Potsdam}, year = {1994}, abstract = {Dieser erste Lehr- und Forschungsbericht des Lehrstuhls f{\"u}r Betriebswirtschaftslehre mit dem Schwerpunkt Marketing beschreibt, analysiert und interpretiert ausgew{\"a}hlte Ergebnisse einer empirischen Studie zum lmage Potsdams bei lokalen Unternehmern. Inhalt: Die Studie im {\"U}berblick: Erhebungssteckbrief, Zusammenfassung der wichtigsten Ergebnisse Ziel der Studie Erhebungsdesign und Struktur der Stichprobe Das Image Potsdams als Wirtschaftsstandort - Die Standortfaktoren - Die Einsch{\"a}tzung der Standortfaktoren: Das {\"U}berzeugungsprofil - Die Wichtigkeit der Standortfaktoren: Das Anforderungsprofil - Die St{\"a}rken und Schw{\"a}chen Potsdams als Wirtschaftsstandort Typologisierung der lokalen Unternehmer nach ihrem lmage vom Wirtschaftsstandort Potsdam Das lmage Potsdams als Lebensraum f{\"u}r Unternehmer - Das lmageprofil der Stadt Potsdam als Lebensraum - Das 'Innere Bild' von der Stadt Potsdam Die wirtschaftliche Zukunft von Potsdam aus der Sicht der befragten Unternehmer Konsequenzen und Ansatzpunkte f{\"u}r die Gestaltung eines effizienten Regionalen Marketingkonzepts}, language = {de} } @misc{Tomassini1994, author = {Tomassini, Luciano}, title = {Eine postmoderne Sicht der internationalen Beziehungen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10985}, year = {1994}, abstract = {The dramatic changes in international relations characterized by the terms "Complex Interdependence" and "Segmentary Globalization" call for new explanation. The author considers the post-modern approaches, a critical analysis of which he presents, to be one possibility to do that. In studies of international policy, these post-modern influences are gaining ground in disputes with realistic and neo-realistic approaches, and they can also clearly be felt in Latin America. Tomassini, based on the historic experiences of Latin America, forcefully calls for an active and constructive incorporation of the region into international developments. For that, Latin-American societies have to establish modern, and open political as well as economic systems which are able to meet those challenges.}, language = {de} } @misc{Krueger1994, author = {Kr{\"u}ger, Joachim}, title = {Zu Gast in Peking : die DDR und die VR China in den 80er Jahren}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10999}, year = {1994}, abstract = {Taking the visit of Erich Honecker to China as an example, the author analyses the bilateral GDR-Chinese relations in the 1980s. Based on extensive original research, the objectives as well as disappointed hopes are presented. The author reveals that not Honecker played the "Chinese Card", but he himself became part of Chinese politics. At the same time, the contradictory reaction to that visit in Moscow are documented when, with the election of Gorbachev, first signs of a change in Soviet policy toward China were indicated. Jahresabo: 40,00 € (erm{\"a}ßigt: 25,00 €)}, language = {de} } @misc{Elsenhans1994, author = {Elsenhans, Hartmut}, title = {Staat - Wirtschaft - Macht und die Zukunft des internationalen Systems}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-11019}, year = {1994}, abstract = {Underlying the importance of revenue the author discusses the future of the international order from the perspective of political economy. The international system will not be a capitalist one. Political conflicts will not be removed by nonviolent market regulations. Weakness of labour force and a dominant role of revenue will further more result in political interventions by nation states. The struggle for revenue to maintain comparative advantages in high-tech-development strengthens state intervention in order to protect domestic market. The failure of the "development state" in the third world and the rising of fundamentalistic tendencies supported by a market-oriented middle class will increase conflicts in those regions.}, language = {de} } @misc{Derichs1994, author = {Derichs, Claudia}, title = {Japans Neue Linke : die selbsternannte Avantgarde}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-11029}, year = {1994}, abstract = {Although without providing a systematical comparison, it has become clear that the sects or party-factions of Japan's New Left movement are by no means merely copies of their counterparts in the West. On the other hand their conduct may not be judged as to be a unique Japanese phenomenon. What they embody is, on the whole, a complex symbiosis of universal and particularly Japanese features, which can be observed in the fields of social behavior, organizational structure, and group dynamics. The particularity of the New Left factions is mostly revealed through the higher intensity of specific features rather than through pecularities found only in Japan.}, language = {de} } @misc{Jacobsen1994, author = {Jacobsen, Hans-Adolf}, title = {Geopolitik im Denken und Handeln}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-11035}, year = {1994}, language = {de} } @misc{Klingebiel1994, author = {Klingebiel, Stephan}, title = {Flucht und Vertreibung in Entwicklungsl{\"a}ndern}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-11048}, year = {1994}, abstract = {Flight and expulsion are and will remain important international problems. The existence of refugees is a result of unsolved domestic tasks. Thus, effective solutions require comprehensive and long-term strategies. So far the efforts to reduce the causes of escape have not been sufficient. In the current refugee crises millions of people can survive only with the help of an efficient international system (for example the UNHCR) that guarantees humanitarian aid and protection. However, this system has turned out to be inadequate although the potential of preventive action is sufficient to reach a major progress in diminishing the refugee problem.}, language = {de} } @unpublished{WittKurthsKrauseetal.1994, author = {Witt, Annette and Kurths, J{\"u}rgen and Krause, F. and Fischer, K.}, title = {On the validity of a model for the reversals of the Earth's magnetic field}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13460}, year = {1994}, abstract = {We have used techniques of nonlinear dynamics to compare a special model for the reversals of the Earth's magnetic field with the observational data. Although this model is rather simple, there is no essential difference to the data by means of well-known characteristics, such as correlation function and probability distribution. Applying methods of symbolic dynamics we have found that the considered model is not able to describe the dynamical properties of the observed process. These significant differences are expressed by algorithmic complexity and Renyi information.}, language = {en} } @unpublished{KurthsVossWittetal.1994, author = {Kurths, J{\"u}rgen and Voss, A. and Witt, Annette and Saparin, P. and Kleiner, H. J. and Wessel, Niels}, title = {Quantitative analysis of heart rate variability}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13470}, year = {1994}, abstract = {In the modern industrialized countries every year several hundred thousands of people die due to the sudden cardiac death. The individual risk for this sudden cardiac death cannot be defined precisely by common available, non-invasive diagnostic tools like Holter-monitoring, highly amplified ECG and traditional linear analysis of heart rate variability (HRV). Therefore, we apply some rather unconventional methods of nonlinear dynamics to analyse the HRV. Especially, some complexity measures that are basing on symbolic dynamics as well as a new measure, the renormalized entropy, detect some abnormalities in the HRV of several patients who have been classified in the low risk group by traditional methods. A combination of these complexity measures with the parameters in the frequency domain seems to be a promising way to get a more precise definition of the individual risk. These findings have to be validated by a representative number of patients.}, language = {en} } @misc{Crome1994, author = {Crome, Erhard}, title = {Woher und wohin? : Zur Analyse der osteurop{\"a}ischen Transition}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-11007}, year = {1994}, abstract = {There has never been a theory of transition from really existing Socialism to a democratic and market-oriented system. Different theoretical approaches are taken into consideration by the author. Experiences of other transitional processes are practicable on Eastern Europe in a limited way. The missing of socio-structural differentiation, the socio-cultural consequences of the really existing Socialism and the international conditions did not promote the transition. It seems that the transition in Eastern Europe is obviously not a change from one political system to another one, but for the time being an open process.}, language = {de} } @misc{ElsenbeerCasselZuniga1994, author = {Elsenbeer, Helmut and Cassel, Keith and Zu{\~n}iga, L.}, title = {Throughfall in the terra firme forest of Western Amazonia}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-16955}, year = {1994}, abstract = {Throughfall measurements were made under primary terra firme rainforest in the Rio Pichis valley, in the Upper Amazon Basin of Peru. Based on 214 precipitation events over nearly 18 months, throughfall was estimated to be 83.1±8.8\% of gross precipitation. Regression analysis of all events revealed that gross precipitation is the only significant explanatory variable; the use of one-burst events does not significantly improve the regression relationship. Gross precipitation is, however, a poor predictor of throughfall for small rainfall events. The two forest structure parameters, canopy capacity, S, and free throughfall coefficient, p, were determined to be 1.3±0.2 mm and 0.32±0.18 mm. Rainfall intensity was found to influence these parameters. New methods which attempt to minimize the influence of meteorologic variables are used to estimate the potential values of these canopy parameters.}, language = {en} } @misc{AntonLaschewsky1994, author = {Anton, Peter and Laschewsky, Andr{\´e}}, title = {Solubilization by polysoaps}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17327}, year = {1994}, abstract = {The aqueous solubilization power of several series of micellar homopolymers and copolymers (polysoaps) is investigated. Using five insoluble or poorly water-soluble dyes, comparisons of the capacities are made with respect ot the influence of structural variables such as the polymer backbone, the polymer geometry, the comonomer content, and the charge of the hydrophilic group. Some guidelines for polysoap structures suited for efficient solubilization are established. Noteworthy is that the solubilization capacities of the polysoaps are neither linked to the ability to reduce the surface tension of water, nor to the polarity of the solubilization sites deduced from spectroscopic probes.}, language = {en} } @misc{Partenheimer1994, author = {Partenheimer, Lutz}, title = {Albrecht der B{\"a}r, Jaxa von K{\"o}penick und der Kampf um die Brandenburg in der Mitte des 12. Jahrhunderts}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-40882}, year = {1994}, abstract = {Die ehemalige Brandenburg auf der Brandenburger Dominsel, der alte F{\"u}rstensitz der slawischen Heveller, gab der Mark Brandenburg ihren Namen. 1150 konnte der Markgraf der s{\"a}chsischen Nordmark, Albrecht der B{\"a}r aus dem Geschlecht der am Ostharz beg{\"u}terten Askanier, die Havelfeste nach dem Tod des letzten Hevellerherrschers besetzen. Zu den bis heute ungekl{\"a}rten Problemen im Zusammenhang mit der Entstehung der Mark Brandenburg geh{\"o}rt die Frage, wann Albrecht die Burg wieder verlor, so daß er gezwungen war, sie durch eine Belagerung zum zweiten Male in seine Gewalt zu bringen, was am 11. Juni 1157 geschah. In der folgenden Untersuchung soll erneut der Frage nachgegangen werden, zu welchem Zeitpunkt dem Markgrafen die Brandenburg noch einmal entrissen worden war.}, language = {de} } @article{Rueckriem1994, author = {R{\"u}ckriem, Georg}, title = {Sinnkrise des Wissens}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {8}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4513}, year = {1994}, language = {de} } @article{Adey1994, author = {Adey, Philip}, title = {Cognitive acceleration}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {7}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4483}, year = {1994}, language = {de} } @article{Kreisel1994, author = {Kreisel, Marina}, title = {Der T{\"a}tigkeitsbegriff - (k)eine Leerformel?}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {7}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4461}, year = {1994}, language = {de} } @article{Grob1994, author = {Grob, Karl}, title = {Cognitive abilities, motives, learning strategies and social interactions as components of long-term-learning in basic electricity}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {7}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4498}, year = {1994}, language = {de} } @article{Lompscher1994, author = {Lompscher, Joachim}, title = {Was ist und was will Psychologische Didaktik?}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {7}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4459}, year = {1994}, language = {de} } @article{Giest1994, author = {Giest, Hartmut}, title = {Schulansichten - Beobachtungen aus einer Lerntherapeutischen Beratungsstelle}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {8}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4536}, year = {1994}, language = {de} } @article{Wyschkon1994, author = {Wyschkon, Uwe}, title = {Zur Gestaltung der Lernt{\"a}tigkeit unter dem Aspekt der Bef{\"a}higung zum wissenschaftlichen Arbeiten und Studieren in der gymnasialen Oberstufe}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {8}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4545}, year = {1994}, language = {de} } @article{Mikelskis1994, author = {Mikelskis, Helmut}, title = {Inszenierung von Gelegenheiten des Naturverstehens}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {9}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4578}, year = {1994}, language = {de} } @article{Edelstein1994, author = {Edelstein, Wolfgang}, title = {Eine Medidation zum Problem der entwicklungsorientierten Didaktik}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {9}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4557}, year = {1994}, language = {de} } @misc{Reich1994, author = {Reich, Sebastian}, title = {Momentum conserving symplectic integrators}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-16824}, year = {1994}, abstract = {In this paper, we show that symplectic partitioned Runge-Kutta methods conserve momentum maps corresponding to linear symmetry groups acting on the phase space of Hamiltonian differential equations by extended point transformation. We also generalize this result to constrained systems and show how this conservation property relates to the symplectic integration of Lie-Poisson systems on certain submanifolds of the general matrix group GL(n).}, language = {en} } @article{Kreisel1994, author = {Kreisel, Marina}, title = {Berichtigung zu : "Der T{\"a}tigkeitsbegriff - (k)eine Leerformel?}, series = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, volume = {8}, journal = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung}, issn = {0945-294X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-5166}, year = {1994}, language = {de} } @misc{KlieglMayrKrampe1994, author = {Kliegl, Reinhold and Mayr, Ulrich and Krampe, Ralf}, title = {Time-accuracy functions for determining process and person differences : an application to cognitive aging}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17101}, year = {1994}, abstract = {A paradigm for the determination of time-accuracy functions (TAFs) for individual participants is introduced for two pairs of tasks differing in cognitive complexity, that is, word scanning vs cued recognition and figural scanning vs figural reasoning. TAFs can be used to test dissociations of cognitive processes beyond scale-related ambiguities of ordinal interactions. The approach is applied to examine the cognitive-aging hypothesis that a single slowing factor can account for interactions between adult age and cognitive task complexity. Twenty young and 20 old adults participated in 17 sessions. Presentation times required for 75, 87.5, and 100\% accuracies were determined for each task with a variant of the psychophysical method of limits. Accuracy was fit by negatively accelerated functions of presentation time. State-trace analyses showed that different slowing factors are required for high- and low-complexity tasks. Relations to speed-accuracy and performance-resource functions are discussed.}, language = {en} } @misc{Bohlen1994, author = {Bohlen, Andreas}, title = {Die sanfte Offensive : Untersuchungen zur Verwendung politischer Euphemismen in britischen und amerikanischen Printmedien bei der Berichterstattung {\"u}ber den Golfkrieg im Spannungsfeld zwischen Verwendung und Mißbrauch der Sprache}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-39213}, year = {1994}, abstract = {Inhalt: 1. Vorbemerkungen 2. Zu einigen philosophischen und theoretisch-linguistischen Grundlagen einer kommunikativ orientierten Betrachtung der Sprache 3. Sprache und menschliche Gesellschaft 4. Der Euphemismus 5. Euphemismen im Golfkrieg - Zur Analyse der Untersuchungsergebnisse 6. Zusammenfassung und Schlußfolgerungen 7. Perspektiven der kommunikativen Sprachforschung bez{\"u}glich 215der Untersuchung des politischen Euphemismus - Forschungsausblick und Schlußbemerkungen}, language = {de} } @book{BarschSaupeBierwagenetal.1994, author = {Barsch, Heiner and Saupe, Gabriele and Bierwagen, Charlotte and Ebert, Beatrix and Goltz, Elke and Halfmann, Jochen and Itzerott, Sibylle and Kaden, Klaus and Knothe, Dieter and Kr{\"u}ger, Wolfgang and Syrbe, Ralf-Uwe and Steinhardt, Uta and Thieme, Siegfried and Ziener, Karen}, title = {Bewertung und Gestaltung der naturnahen Landschaft in Schutzgebieten, Erholungs- und Freizeitgebieten. Anhang}, editor = {Barsch, Heiner and Saupe, Gabriele}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-52928}, publisher = {Universit{\"a}t Potsdam}, year = {1994}, language = {de} } @misc{PueschelChrist1994, author = {P{\"u}schel, Gerhard Paul and Christ, Bruno}, title = {Inhibition by PGE₂ of glucagon-induced increase in phosphoenolpyruvate carboxykinase mRNA and acceleration of mRNA degradation in cultured rat hepatocytes}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-45792}, year = {1994}, abstract = {In cultured rat hepatocytes the key gluconeogenic enzyme phosphoenolpyruvate carboxykinase (PCK) is known to be induced by glucagon via an elevation of cAMP. Prostaglandin E₂ has been shown to antagonize the glucagon-activated cAMP formation, glycogen phosphorylase activity and glucose output in hepatocytes. It was the purpose of the current investigation to study the potential of PGE₂ to inhibit the glucagon-induced expression of PCK on the level of mRNA and enzyme activity. PCK mRNA and enzyme activity were increased by 0.1 nM glucagon to a maximum after 2 h and 4 h, respectively. This increase was completely inhibited if 10 μM PGE2 was added concomitantly with glucagon. This inhibition by PGE₂ of glucagon-induced PCK activity was abolished by pertussis toxin treatment. When added at the maximum of PCK mRNA at 2 h, PGE₂ accelerated the decay of mRNA and reduced enzyme activity. This effect was not reversed by pertussis toxin treatment. Since in liver PGE₂ is derived from Kupffer cells, which play a key role in the local inflammatory response, the present data imply that during inflammation PGE₂ may reduce the hepatic gluconeogenic capacity via a Gᵢ-linked signal chain.}, language = {en} } @misc{NeuschaeferRubeDeVriesHaeneckeetal.1994, author = {Neusch{\"a}fer-Rube, Frank and DeVries, Christa and H{\"a}necke, Kristina and Jungermann, Kurt and P{\"u}schel, Gerhard Paul}, title = {Molecular cloning and expression of a prostaglandin E₂ receptor of the EP₃ϐ subtype from rat hepatocytes}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-45830}, year = {1994}, abstract = {Rat hepatocytes have previously been reported to possess prostaglandin E₂ receptors of the EP₃-type (EP₃-receptors) that inhibit glucagonstimulated glycogenolysis by decreasing cAMP. Here, the isolation of a functional EP₃ϐ receptor cDNA clone from a rat hepatocyte cDNA library is reported. This clone can be translated into a 362-amino-acid protein, that displays over 95\% homology to the EP₃ϐ receptor from mouse mastocytoma. The amino- and carboxy-terminal region of the protein are least conserved. Transiently transfected HEK 293 cells expressed a single binding site for PGE₂ with an apparent Kd of 15 nM. PGE₂ > PGF₂α > PGD₂ competed for [³H]PGE₂ binding sites as did the EP₃ receptor agonists M\&B 28767 = sulprostone > misoprostol but not the EP₁ receptor antagonist SC 19220. In stably transfected CHO cells M\&B 28767 > sulprostone = PGE₂ > misoprostol > PGF₂α inhibited the forskolin-elicited cAMP formation. Thus, the characteristics of the EP₃ϐ receptor of rat hepatocytes closely resemble those of the EP₃ϐ receptor of mouse mastocytoma.}, language = {en} } @unpublished{FeudelSeehafer1994, author = {Feudel, Fred and Seehafer, Norbert}, title = {On the bifurcation phenomena in truncations of the 2D Navier-Stokes equations}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13390}, year = {1994}, abstract = {We have studied bifurcation phenomena for the incompressable Navier-Stokes equations in two space dimensions with periodic boundary conditions. Fourier representations of velocity and pressure have been used to transform the original partial differential equations into systems of ordinary differential equations (ODE), to which then numerical methods for the qualitative analysis of systems of ODE have been applied, supplemented by the simulative calculation of solutions for selected initial conditions. Invariant sets, notably steady states, have been traced for varying Reynolds number or strength of the imposed forcing, respectively. A complete bifurcation sequence leading to chaos is described in detail, including the calculation of the Lyapunov exponents that characterize the resulting chaotic branch in the bifurcation diagram.}, language = {en} } @misc{Gatzhammer1994, author = {Gatzhammer, Stefan}, title = {Politisch-diplomatische Beziehungen zwischen Portugal und {\"O}sterreich im 18. Jahrhundert vor dem Hintergrund der Jesuitenfrage}, issn = {1866-8380}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-29230}, year = {1994}, language = {de} } @misc{Gatzhammer1994, author = {Gatzhammer, Stefan}, title = {Slovensk{\´y} mision{\´a}r v portugalskom v{\"a}zen{\´i} : Braz{\´i}lsky mision{\´a}r P. Jozef Keyling, SJ z Banskej Štiavnice}, issn = {1866-8380}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-29219}, year = {1994}, abstract = {Nasleduj{\´u}ci pr{\´i}spevok poslal časopisu Viera a život vedeck{\´y} pracovn{\´i}k katol{\´i}ckej teologickej fakulty na Regensburskej univerzite (Nemecko) p{\´a}n Stefan Gatzhammer, M. A., L{\´i}c. iur. can. Podkladom pre čl{\´a}nok bola rozpracovan{\´a} vedeck{\´a} št{\´u}dia, preto aj nemeck{\´a} p{\^o}vodina pr{\´i}spevku mala bohat{\´e} a d{\^o}kladn{\´e} pozn{\´a}mky. S l{\´a}skav{\´y}m s{\´u}hlasom autora sme pre potreby našich čitateľov pozn{\´a}mky zjednodušili. P{\^o}vodn{\´y} nemeck{\´y} titul čl{\´a}nku znie: „Die Ausweisung der Jesuiten aus Portugal 1759/60. Der Brasilienmissionar P. Josef Keyling SJ aus Schemnitz." Pr{\´i}spevok do slovenčiny preložila Zuzana Vaňov{\´a}.}, language = {mul} }