I describe characteristic phenomena of quantum physics that suggest that reality appears to us in two domains: the open and well-known domain of empirical, material things—the realm of actuality—and a hidden and invisible domain of nonempirical, non-material forms—the realm of potentiality. The nonempirical forms are part of physical reality because they contain the empirical possibilities of the universe and can manifest themselves in the empirical world. Two classes of nonempirical states are discussed: the superposition states of microphysical entities, which are (...) nonempirical because observation destroys them, and the virtual states of material systems, which are nonempirical because they are empty. The non-empirical part to physical reality represents a predetermined and hidden order that exists before it is empirical, and the visible world is an emanation out of it. I discuss consequences for our understanding of human nature, the origin of life, and human values. Reality is an indivisible wholeness that is aware of its processes, like a Cosmic Spirit, and it reveals its awareness in the mindlike properties of elementary processes as well as in the human consciousness. Thus, one is led to G. W. F. Hegel's thesis that the Cosmic Spirit is thinking in us. (shrink)

Modern science is based empirically on data, which are gained, mainly, by means of technical machinery and plants of high complexity. This type of laboratory research is at a distance to the old forms of investigating nature such that it is under suspicion to investigate artefacts rather than nature. - Against this it is argued in the following, that laboratory research has to be acknowledged as true heir of the form of science which Galileo had started. Knowledge of the powers (...) and mechanisms of nature can be gained only by means of pointed interventions into natural processes. The term ,,laboratory", however, designates less the place of experimentation, but, rather, the ,,thoughtstyle" practised by a research group, in which forms of handling experimental setups and (social) structures of cooperation in a team of specialists are integrated. - Scientific facts cannot be separated from the social and cultural conditions comprised in a thoughtstyle, they are dependent on thoughtstyles. Yet, this does not make them mere artefacts of instrumentation. Scientific practices in the laboratories define, rather, the conditions under which nature can present herself. German Die moderne Naturwissenschaft stützt sich auf empirische Daten, die weitgehend in hochkomplizierten technischen Apparaturen und Anlagen gewonnen werden. Von den Formen der alten Naturforschung ist diese Laborforschung so weit entfernt, daß sie den Vorwurf auf sich zog, sie untersuche Artefakte, aber nicht Natur. - Dagegen wird hier argumentiert, daß die Laborforschung als genuine Erbin der mit Galilei begonnenen Form der Naturwissenschaft anzuerkennen sei. Erkenntnis von den Wirkungsweisen der Natur ist nur durch gezieltes Eingreifen in Vorgänge der Natur zu gewinnen. Unter dem ,,Laboratorium haben wir allerdings weniger den Ort des Experimentierens zu verstehen, als vielmehr den in einer Arbeitsgruppe praktizierten ,,Denkstil, in dem die Formen des Forschungshandelns mit den (sozialen) Strukturen der arbeitsteiligen Kooperation verbunden sind. - Wissenschaftliche Tatsachen lassen sich zwar nicht von den Bindungen an einen Denkstil ablösen, sie erweisen sich als denkstilabhängig; das macht sie aber nicht zu Kunstprodukten. Die in einem Labor praktizierten Arbeitsweisen definieren vielmehr die Bedingungen, unter denen Natur sich zeigen kann. (shrink)

Modern empiricism is usually thought to have emerged in opposition to the then dominant school of neo-Kantianism. True as this may be, it has blinded us to the fact that Kantian and more surprisingly even neo-Kantian elements of philosophy have also had a positive influence upon the development of the new empiricism. One episode in which this influence proves itself in fact dominant and which I will present in the following concerns the philosophical position which Popper adopted vis-à-vis logical empiricism (...) — as advocated by Wittgenstein and Schlick — in Vienna in the late twenties and early thirties of the last century. (shrink)

Rudolf Carnap gilt unbestritten als einer der eminentesten Vertreter des logischen Empirismus. Im Band 2 der Reihe "Texte zur Wissenschaftlichen Weltauffassung" werden alle wesentlichen Aspekte seiner Philosophie zusammenhAngend dargestellt und kritisch analysiert. Lothar Krauth beurteilt dabei Carnaps Bedeutung vor einem breiten, philosophiehistorischen Hintergrund. Nicht nur sein EinfluA und seine Vordenkerrolle im Wiener Kreis werden diskutiert, sondern auch die mehrfache Wandlung in Carnaps Denken. So erklArt sich manche allzu groAe Vereinfachung, mancher Radikalismus als erster Ansatz, der spAter A1/4berarbeitet, zu einem (...) tragfAhigen Bestandteil kommender analytischer Sprachtheorie ausgebaut wurde. (shrink)

Gilt das Verbot der Tötung Unschuldiger absolut oder darf selbst diese fundamentale Moralnorm unter Ausnahmebedingungen verletzt werden? Wir leben in einer Welt voller Gefahren. Das Leben von Menschen wird bedroht durch verbrecherische Diktaturen, terroristische Anschläge, technische Havarien und Katastrophen verschiedener Art. Dürfen solche Gefahren notfalls auch dann bekämpft werden, wenn dabei Unschuldige getötet werden oder ihr Tod in Kauf genommen werden muss? Das Buch gibt eine moralphilosophische Antwort auf diese politisch, ethisch und rechtlich umstrittene Frage. Lothar Fritze analysiert das (...) Rechtsdogma der Nichtabwägungsfähigkeit menschlichen Lebens und fragt, wie sich das Verbot der Tötung Unschuldiger mit der verbreiteten moralischen Intuition vereinbaren lässt, wonach in Extremfällen durchaus einige wenige unschuldige Menschen geopfert werden dürfen, um sehr viele andere Unschuldige zu retten. (shrink)

Following the pioneering studies of the receptive field (RF), the concept gained further significance for visual perception by the discovery of input effects from beyond the classical RF. These studies demonstrated that neuronal responses could be modulated by stimuli outside their RFs, consistent with the perception of induced brightness, color, orientation, and motion. Lesion scotomata are similarly modulated perceptually from the surround by RFs that have migrated from the interior to the outer edge of the scotoma and in this way (...) provide filling-in of the void. Large RFs are advantageous to this task. In higher visual areas, such as the middle temporal and inferotemporal lobe, RFs increase in size and lose most of their retinotopic organization while encoding increasingly complex features. Whereas lowerlevel RFs mediate perceptual filling-in, contour integration, and figure–ground segregation, RFs at higher levels serve the perception of grouping by common fate, biological motion, and other biologically relevant stimuli, such as faces. Studies in alert monkeys while freely viewing natural scenes showed that classical and nonclassical RFs cooperate in forming representations of the visual world. Today, our understanding of the mechanisms underlying the RF is undergoing a quantum leap. What had started out as a hierarchical feedforward concept for simple stimuli, such as spots, lines, and bars, now refers to mechanisms involving ascending, descending, and lateral signal flow. By extension of the bottom-up paradigm, RFs are nowadays understood as adaptive processors, enabling the predictive coding of complex scenes. Top-down effects guiding attention and tuned to task-relevant information complement the bottom-up analysis. (shrink)

An exponential $\exp $ on an ordered field $$. The structure $$ is then called an ordered exponential field. A linearly ordered structure $$ is called o-minimal if every parametrically definable subset of M is a finite union of points and open intervals of M.The main subject of this thesis is the algebraic and model theoretic examination of o-minimal exponential fields $$ whose exponential satisfies the differential equation $\exp ' = \exp $ with initial condition $\exp = 1$. This study (...) is mainly motivated by the Transfer Conjecture, which states as follows:Any o-minimal exponential field $$ whose exponential satisfies the differential equation $\exp ' = \exp $ with initial condition $\exp =1$ is elementarily equivalent to $\mathbb {R}_{\exp }$.Here, $\mathbb {R}_{\exp }$ denotes the real exponential field $$, where $\exp $ denotes the standard exponential $x \mapsto \mathrm {e}^x$ on $\mathbb {R}$. Moreover, elementary equivalence means that any first-order sentence in the language $\mathcal {L}_{\exp } = \{+,-,\cdot,0,1, <,\exp \}$ holds for $$ if and only if it holds for $\mathbb {R}_{\exp }$.The Transfer Conjecture, and thus the study of o-minimal exponential fields, is of particular interest in the light of the decidability of $\mathbb {R}_{\exp }$. To the date, it is not known if $\mathbb {R}_{\exp }$ is decidable, i.e., whether there exists a procedure determining for a given first-order $\mathcal {L}_{\exp }$ -sentence whether it is true or false in $\mathbb {R}_{\exp }$. However, under the assumption of Schanuel’s Conjecture—a famous open conjecture from Transcendental Number Theory—a decision procedure for $\mathbb {R}_{\exp }$ exists. Also a positive answer to the Transfer Conjecture would result in the decidability of $\mathbb {R}_{\exp }$. Thus, we study o-minimal exponential fields with regard to the Transfer Conjecture, Schanuel’s Conjecture, and the decidability question of $\mathbb {R}_{\exp }$.Overall, we shed light on the valuation theoretic invariants of o-minimal exponential fields—the residue field and the value group—with additional induced structure. Moreover, we explore elementary substructures and extensions of o-minimal exponential fields to the maximal ends—the smallest elementary substructures being prime models and the maximal elementary extensions being contained in the surreal numbers. Further, we draw connections to models of Peano Arithmetic, integer parts, density in real closure, definable Henselian valuations, and strongly NIP ordered fields.Parts of this thesis were published in [2–5].Abstract prepared by Lothar Sebastian KrappE-mail: [email protected]: https://d-nb.info/1202012558/34. (shrink)