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Menschenrechte
(2008)
Alle Rechte sind universell, unteilbar, befinden sich in wechselseitiger Abhängigkeit und Zusammenhang – so lautet Art. 5 der Wiener Deklaration der Wiener Weltkonferenz über Menschenrechte 1 aus dem Jahre 1993. Diese kleine und umfangreiche Definition ruft eine Menge von Fragen hervor, denen hier kurz nachgegangen werden soll.
Ausländerrecht in Europa
(2008)
I. Einleitung II. Die Rolle der EMRK bei Einreise und Abschiebung III. Eine kleine Revolution: Freizügigkeit in der EU und Öffnung der Binnengrenzen IV. Drittstaatsangehörige und restriktive Ausübung staatlichen Ermessens IV. Zukunftaussichten: Zwei Vorschläge für eine Reform des Ausländerrechts in der EU V. Fazit
I. Einleitung II. Grundsätzliches zur Europäischen Menschenrechtskonvention und ihrem Kontrollsystem III. Schutz der Meinungsäußerungsfreiheit IV. Einschränkbarkeit der Meinungsäußerungsfreiheit allgemein V. Einschränkbarkeit der Meinungsäußerungsfreiheit zum Schutz des guten Rufes oder der Rechte anderer VI. Schluß
We construct elliptic elements in the algebra of (classical pseudo-differential) operators on a manifold M with conical singularities. The ellipticity of any such operator A refers to a pair of principal symbols (σ0, σ1) where σ0 is the standard (degenerate) homogeneous principal symbol, and σ1 is the so-called conormal symbol, depending on the complex Mellin covariable z. The conormal symbol, responsible for the conical singularity, is operator-valued and acts in Sobolev spaces on the base X of the cone. The σ1-ellipticity is a bijectivity condition for all z of real part (n + 1)/2 − γ, n = dimX, for some weight γ. In general, we have to rule out a discrete set of exceptional weights that depends on A. We show that for every operator A which is elliptic with respect to σ0, and for any real weight γ there is a smoothing Mellin operator F in the cone algebra such that A + F is elliptic including σ1. Moreover, we apply the results to ellipticity and index of (operator-valued) edge symbols from the calculus on manifolds with edges.
The Cauchy problem of the vacuum Einstein's equations aims to find a semimetric g(αβ) of a spacetime with vanishing Ricci curvature Rα,β and prescribed initial data. Under the harmonic gauge condition, the equations Rα,β = 0 are transferred into a system of quasi-linear wave equations which are called the reduced Einstein equations. The initial data for Einstein's equations are a proper Riemannian metric h(αβ) and a second fundamental form K(αβ). A necessary condition for the reduced Einstein equation to satisfy the vacuum equations is that the initial data satisfy Einstein constraint equations. Hence the data (h(αβ),K(αβ)) cannot serve as initial data for the reduced Einstein equations. Previous results in the case of asymptotically flat spacetimes provide a solution to the constraint equations in one type of Sobolev spaces, while initial data for the evolution equations belong to a different type of Sobolev spaces. The goal of our work is to resolve this incompatibility and to show that under the harmonic gauge the vacuum Einstein equations are well-posed in one type of Sobolev spaces.
The comprehension of figurative language : electrophysiological evidence on the processing of irony
(2008)
This dissertation investigates the comprehension of figurative language, in particular the temporal processing of verbal irony. In six experiments using event-related potentials(ERP) brain activity during the comprehension of ironic utterances in relation to equivalent non-ironic utterances was measured and analyzed. Moreover, the impact of various language-accompanying cues, e.g., prosody or the use of punctuation marks, as well as non-verbal cues such as pragmatic knowledge has been examined with respect to the processing of irony. On the basis of these findings different models on figurative language comprehension, i.e., the 'standard pragmatic model', the 'graded salience hypothesis', and the 'direct access view', are discussed.
Inhalt: 1. Einleitung 2. Leistungsdifferenzierung im tripartite System und die Diskussion überdie Übergangsauslese 2.1. Zur Geschichte der Übergangsauslese 2.2. Die Ausleseverfahren 2.3. Die Debatte um die Abhängigkeit der Intelligenz von Anlageund Umwelt 2.4. Das Problem der Konstanz des Intelligenzquotienten 2.5. Die Forderung nach equality of educational opportunity 2.6. Der intellektualistische Akzent der ll+-Prüfung 2.7. Psychohygienische Argumente in der Diskussion über diell+-Prüfung 2.8. Die Validität der Übergangsauslese 2.8.1. Das Kriterienproblem 2.8.2. Die 11+-Prüfung in ihrer Gesamtheit 2.8.3. Die einzelnen Verfahren 3. Leistungsdifferenzierung in comprehensive schools 3.1. Einleitung 3.1.1. Zur Datengewinnung 3.1.2. Zur Definition der comprehensive school 3.2. Formen und Verfahren der Differenzierung in comprehensiveschools 3.2.1. Differenzierungsformen 3.2.2. Differenzierungsverfahren 3.3. Die Bewährung des Differenzierungssystems der comprehensiveschools 3.3.1. Methodische Probleme der Bewährungskontrolle 3.3.2. Leistungsniveau 3.3.3. Durchlässigkeit 3.4. Die These vom Leistungsvorteil homogener Gruppen 3.5. „Non-streaming" in comprehensive schools Schlußbemerkung
Inhalt: - Wieviel Spiel gibt es in den Grundschulen? - Wozu dienen die Spiele imUnterricht der Grundschule? - Spiele zur Belohnung und zur Erholung - Spiele für Ordnung und Disziplin - Spiele zur Übung und zur Veranschaulichung(Spiele als Hilfsmittel des Lernens) - Lernen durch Spiel - Spiele zur Problembewältigung - Haben Spiele das Lernen in der Schule verändert?
Pädagogische Diagnostik
(1980)
Inhalt: 2.1. Einleitung 2.2. Das deutsche Schulsystem 2.2.1. Die Grundstruktur 2.2.2. Zur Entwicklung des Schulwesens 2.2.3. Die Schüler 2.2.4. Die Lehrer 2.3. Die Schule von innen 2.3.1. Rahmenbedingungen des Unterrichts 2.3.2. Unterrichtsinhalte 2.3.3. Unterrichtsmethoden 2.3.4. Leistungsbeurteilung 2.3.5. Außerunterrichtliche Angebote und soziale Erfahrungen in der Schule 2.4. Anmerkungen und Literatur
Inhalt: 1. Eigenschaften psychologischer Tests - Objektivität - Normen - Reliabilität oder Zuverlässigkeit - Validität oder Gültigkeit 2. Anwendung psychologischer Tests - Auslese - Fehler - Kriteriumsverhalten und Selektionsstrategie - Klassifikation - Forschung 3. Aufwand für die Testkonstruktion 4. Zusammenfassung
School performance and adjustment of Greek remigrant students in the schools of their home country
(1992)
This study explores the adjustment of Greek remigrant students in Greek public schools after their families' return to Greece from the Federal Republic of Germany. Teacher and self-rating instruments were used, and achievement and language competence data were obtained. The sample consisted of 13- to 15-year-old junior high school students in northern Greece. The remigrant students were divided into two groups ("early return" and "late return"), based on the year of return to Greece. The control group consisted of all the local classmates of these students. Remigrant students (mainly late return) were found to experience difficulties mainly in the language/learning domain and less in the interpersonal and intrapersonal behavior domains.
Classical semiconductor physics has been continuously improving electronic components such as diodes, light-emitting diodes, solar cells and transistors based on highly purified inorganic crystals over the past decades. Organic semiconductors, notably polymeric, are a comparatively young field of research, the first light-emitting diode based on conjugated polymers having been demonstrated in 1990. Polymeric semiconductors are of tremendous interest for high-volume, low-cost manufacturing ("printed electronics"). Due to their rather simple device structure mostly comprising only one or two functional layers, polymeric diodes are much more difficult to optimize compared to small-molecular organic devices. Usually, functions such as charge injection and transport are handled by the same material which thus needs to be highly optimized. The present work contributes to expanding the knowledge on the physical mechanisms determining device performance by analyzing the role of charge injection and transport on device efficiency for blue and white-emitting devices, based on commercially relevant spiro-linked polyfluorene derivatives. It is shown that such polymers can act as very efficient electron conductors and that interface effects such as charge trapping play the key role in determining the overall device efficiency. This work contributes to the knowledge of how charges drift through the polymer layer to finally find neutral emissive trap states and thus allows a quantitative prediction of the emission color of multichromophoric systems, compatible with the observed color shifts upon driving voltage and temperature variation as well as with electrical conditioning effects. In a more methodically oriented part, it is demonstrated that the transient device emission observed upon terminating the driving voltage can be used to monitor the decay of geminately-bound species as well as to determine trapped charge densities. This enables direct comparisons with numerical simulations based on the known properties of charge injection, transport and recombination. The method of charge extraction under linear increasing voltages (CELIV) is investigated in some detail, correcting for errors in the published approach and highlighting the role of non-idealized conditions typically present in experiments. An improved method is suggested to determine the field dependence of charge mobility in a more accurate way. Finally, it is shown that the neglect of charge recombination has led to a misunderstanding of experimental results in terms of a time-dependent mobility relaxation.