"Verzeichnis der Schriften Hans Posers": p. [463]-480.

HJ EIKMEYER AND H. RIESER Word Semantics from Different Points of View. An Introduction to the Present Volume /. Possible Worlds Possible worlds have turned ...

In the children's book ``The Phantom Tollbooth'' by Norton Juster one can find the following passage:``Yes, please,'' said Milo. ``Can you show me the biggest number there is?''.

Unitary field theories and “SUPER-GUT” theories work with an universal continuum, the structured spacetime of R. Descartes, B. Spinoza, B. Riemann, and A. Einstein, or a (Machian (1–3) ) structured vacuum according the quantum theory of unitary fields (Dirac, (4,5) and Heisenberg (6–8) ). The atomistic aspect of the substantial world is represented by the fundamental constants which are invariant against “all transformations” and which “depend on nothings” (Planck (9–11) ). A satisfactory unitary theory has to involve these constants like (...) the mathematical numbers. Today, Planck's conception of the three elementary constants ħ, c, and G may be the key to general relativistic quantum field theory like unitary theory. However, the elementary constants are a question of measurement-theory, also.According to Popper's theory (12–16) of induction, such unitary theories are “universal explaining theories.” The fundamental constants involve the complementarity between the universal statements in unitary theory and the “basic statements” in the language of classical observables. (shrink)

The generally covariant Lagrangian densityG = ℛ + 2K ℒmatter of the Hamiltonian principle in general relativity, formulated by Einstein and Hilbert, can be interpreted as a functional of the potentialsg ikand φ of the gravitational and matter fields. In this general relativistic interpretation, the Riemann-Christoffel form Γ kl i = kl i for the coefficients г kl i of the affine connections is postulated a priori. Alternatively, we can interpret the LagrangianG as a functional of φ, gik, and the (...) coefficients г kl i . Then the г kl i are determined by the Palatini equations. From these equations and from the symmetry г kl i = г lk i for all matter fields with δℒ/δΓ=0 the Christoffel symbols again result. However, for Dirac's bispinor fields, δℒ/δΓ becomes dependent on the Dirac current, essentially with a coupling factor ∼Khc. In this case, the Palatini equations define a new transport rule for the spinor fields, according to which a second universal interaction results for the Dirac spinors, besides Einstein's gravitation. The generally covariant Dirac wave equations become the general relativistic nonlinear Heisenberg wave equations, and the second universal interaction is given by a Fermi-like interaction term of the V-A type. The geometrically induced Fermi constant is, however, very small and of the order 10−81erg cm3. (shrink)

The fundamental open questions of general relativity theory are the unification of the gravitational field with other fields, aiming at a unified geometrization of physics, as well as the renormalization of relativistic gravitational theory in order to obtain their self-consistent solutions. These solutions are to furnish field-theoretic particle models—a problem first discussed by Einstein. In addition, we are confronted with the issue of a coupling between gravitational and matter fields determined (not only) by Einstein's principle of equivalence, and also with (...) the question of the geometric meaning of a gravitational quantum theory. In our view, all these problems are so closely related that they warrant a general solution. We treat mainly the concepts suggested by Einstein and Weyl. (shrink)

The physical meaning of gauge groups in bimetrical, Riemannian, and Hermitian theories of gravitation is discussed. In Hermitian relativity, Einstein's A-invariance means a super-gauge group which characterizes the Einstein-Schrödinger equations as the only nondegenerate general-relativistic field theory.

This paper considers the concept of freedom in behavioural terms, defining it in relation to freedom of action. This notion is applied to psychiatric abnormalities, and it is suggested that this new way of looking at the problem may go some way to surmount the philosophical difficulties normally attaching to the notion of freedom.

Quasi-equational logic concerns with a completeness theorem, i. e. a list of general syntactical rules such that, being given a set of graded quasi-equations Q, the closure Cl Q = Qeq Fun Q can be derived from by the given rules. Those rules do exist, because our consideration could be embedded into the logic of first order language. But, we look for special (quasi-equational) rules. Suitable rules were already established for the (non-functorial) case of partial algebras in Definition 3.1.2 of (...) [27], p. 108, and [28], p. 102. (For the case of total algebras, see [35].) So, one has to translate these rules to the (functorial) language of partial theories .Surprisingly enough, partial theories can be replaced up to isomorphisms by partial Dale monoids (cf. Section 3), which, in the total case are ordinary monoids. (shrink)

Die Beitrage europaischer Forscherinnen und Forscher beleuchten die Probleme, Herausforderungen, Formen und Bilder, die mit stadtischer Entwicklung einhergehen, aus zumeist vergleichender und auch interdisziplinarer Perspektive. Geschichte, Literatur, Soziologie, Architektur, Kino oder Interkulturalitat auf vielfaltige Art werden am Beispiel vor allem deutscher und franzosischer Stadte verschiedene Aspekte der Modernitat herausgearbeitet. Die Hauptfragestellungen widmen sich sozialen Gruppen, Migrationsstromen, Integrations- und Ausschlussphanomenen, Orten der Soziabilitat, Kulturveranstaltungen, Erzahlformen sowie theoretischen Analysen. Die transatlantische Dimension, also der Vergleich europaischer Gegebenheiten und amerikanischer Spezifika, wird anhand von (...) Einzelfallstudien und uber unterschiedliche Denkansatze erforscht. Die Beitrage zur Stadtforschung geben so, im zeitlichen Rahmen vom 17. Jahrhundert bis hin zur Schwelle des 21. Jahrhunderts, den Forschungsstand verschiedener Disziplinen wieder und untersuchen die Relevanz zeitgenossischer Herangehensweisen.". (shrink)

Most of the reports on synthetic biology include not only familiar topics like biosafety and biosecurity but also a chapter on ‘ethical concerns’; a variety of diffuse topics that are interrelated in some way or another. This article deals with these ‘ethical concerns’. In particular it addresses issues such as the intrinsic value of life and how to deal with ‘artificial life’, and the fear that synthetic biologists are tampering with nature or playing God. Its aim is to analyse what (...) exactly is the nature of the concerns and what rationale may lie behind them. The analysis concludes that the above-mentioned worries do not give genuine cause for serious concern. In the best possible way they are interpreted as slippery slope arguments, yet arguments of this type need to be handled with care. It is argued that although we are urged to be especially vigilant we do not have sufficiently cogent reasons to assume that synthetic biology will cause such fundamental hazards as to warrant restricting or refraining from research in this field. (shrink)

Keine ausführliche Beschreibung für "Friedrich Engels und die wegweisende Bedeutung der Philosophie für die Naturwissenschaft" verfügbar.

The Galilei invariance of classical dynamics does not automatically imply the third Newtonian axiom and the center of mass theorem. For the deduction of these theorems from Galilei invariance we must have, generally, a “kinematical potential” (Helmholtz) and a “potential function” (Clausius), respectively. In celestial mechanics it is possible to have conservation of the motion of the center of gravity but not of the mass center. In this case, the active and the passive masses are different quantities.

Werturteile über Musik - lassen sie sich begründen, sind sie verbindlich, welche Geltung haben sie? Das Buch untersucht philosophische, soziologische und pädagogische Aspekte. Dabei werden insbesondere die wichtigsten Urteilsformen und Argumentationsmöglichkeiten sowohl mit kulturabhängigem als auch mit universalem Geltungsanspruch dargestellt und diskutiert. Den theoretischen Erörterungen folgen mit zahlreichen Noten- und Textbeispielen Hinweise und methodische Vorschläge zur Beurteilung von Musik in unterschiedlichen kulturellen Milieus.