Early zoological researches by P.S. Pallas and K.E. von Baer in their letters to the zoologists of Berlin. The centenaries which are celebrated in 1991 and 1992 in memory of P.S. Pallas (1791) and K.E. von Baer (born 1792) caused the following studies of hitherto unpublished sources, preserved in the collections of the Museum für naturkunde in Berlin. The earliest zoological works of Pallas are discussed in relation to his last publication on the “Zoographia Rosso-Asiatica” which should have been finished (...) in Berlin. Some years after the death of Pallas, Baer also contacted the Berlin zoologists K.A. Rudolphi and M.H. Lichtenstein, asking for help, when he was going to establish zoology and a zoological museum at the University of Königsberg. (shrink)

E. Fr. A. Baur repräsentiert einen durch die Berliner Erwedtung, die Befreiungskriege und die in Schleiermacher, Fries und Fichte idealistisch gebrochene Aufklärung geprägten Frömmigkeitstypus. Schönheit, gefühlsmäßiges Erleben, Selbstreflexion und die Geschichtlidikeit der Gotteserfahrung sind der Bezugsrahmen für die religiöse Erfahrung, inhaltlich bestimmt durch die in der kirchenmusikalisdien Reformbewegung relgiös-ästhetisdie Stimmung von politischem Aufbruch, Patriotismus, christozentrischer Kirdilichkeit und mittelbarer Abhängigkeit vom Universum. In der erwecklidivermittlungstheologischen Predigt soll die Gemeinde in diesen Erfahrungen weitergeführt werden. Der Freiheitsgedanke und der Patriotismus werden von A. (...) Baur in der Turnbewegung Jahns lebendig gehalten. Differenzen zwischen A. Baur und Felix Mendelssohn-Bartholdy sind in mehrfacher Hinsicht zu verzeichnen gewesen. In der Häuslichkeit und der Freizeitgestaltung wird die städtische Bildungskultur fortgeführt, und die frauliche Existenz ist in besonderer Weise Spiegel religiöser Erfahrung. Innerhalb des kirchenrechtlich-institutionellen Spielraums gelingt eine Ausweitung der sozialen Fürsorge, und durch die zwedigebundene freie Vereinstätigkeit werden die aufkommenden Bedürfnisse kirdilich integriert und sollen analog zum Gustav-Adolph-Verein die Kultur christlich durchdringen. Die Christologie vermittelt die Kategorien für die als bedeutsam erlebten Personen. Die Teilhabe an ihrer vermittelnden und er-lösenden Tätigkeit ermöglicht die Fortsetzung der von Jesus Christus gewollten geistigen Erhebung, die in der Verklärung der Personen vorgestellt wird. Die Industrie stellt das durch sie ausgedrückte Lebensgefühl grundsätzlich in Frage. (shrink)

We prove that any speedable computably enumerable set may be split into a disjoint pair of speedable computably enumerable sets. This solves a longstanding question of J.B. Remmel concerning the behavior of computably enumerable sets in Blum's machine independent complexity theory. We specify dynamic requirements and implement a novel way of detecting speedability-by embedding the relevant measurements into the substage structure of the tree construction. Technical difficulties in satisfying the dynamic requirements lead us to implement "local" strategies that only look (...) down the tree. The (obvious) problems with locality are then resolved by placing an isomorphic copy of the entire priority tree below each strategy (yielding a self-similar tree). This part of the construction could be replaced by an application of the Recursion Theorem, but shows how to achieve the same effect with a more direct construction. (shrink)

This article compares Alexander von Humboldt 's and John Ruskin's writings on landscape art and natural landscape. In particular, Humboldt 's conception of a habitat's essence as predominantly composed of vegetation as well as judgment of tropical American nature as the realm of nature of the highest aesthetic enjoyment is examined in the context of Ruskin's aesthetic theory. The magnitude of Humboldt 's contribution to the natural sciences seems to have clouded our appreciation of his prominent status in the field (...) of art history. In addition to his position as scientist, Humboldt 's role as aesthetician is demonstrated in this paper. Unlike Ruskin, who comfortably resides in the canon of art history relative to his minor significance in the field of geology, Humboldt has not been recognized for his impact on the world of art; his tremendous scientific importance seems to have overshadowed an appreciation of it. (shrink)

In timing perception studies, the timing of one event is usually manipulated relative to another, and participants are asked to judge if the two events were synchronous, or to judge which of the two events occurred first. Responses are analyzed to determine a measure of central tendency, which is taken as an estimate of the timing at which the two events are perceptually synchronous. When these estimates do not coincide with physical synchrony, it is often assumed that the sensory signals (...) are asynchronous, as though the transfer of information concerning one input has been accelerated or decelerated relative to the other. Here we show that, while this is a viable interpretation, it is equally plausible that such effects are driven by shifts in the criteria used to differentiate simultaneous from asynchronous inputs. Our analyses expose important ambiguities concerning the interpretation of simultaneity judgement data, which have hitherto been underappreciated. (shrink)

Theoretical explication of a growing body of empirical data on consciousness-related anomalous phenomena is unlikely to be achieved in terms of known physical processes. Rather, it will first be necessary to formulate the basic role of consciousness in the definition of reality before such anomalous experience can adequately be represented. This paper takes the position that reality is constituted only in the interaction of consciousness with its environment, and therefore that any scheme of conceptual organization developed to represent that reality (...) must reflect the processes of consciousness as well as those of its environment. In this spirit, the concepts and formalisms of elementary quantum mechanics, as originally proposed to explain anomalous atomic-scale physical phenomena, are appropriated via metaphor to represent the general characteristics of consciousness interacting with any environment. More specifically, if consciousness is represented by a quantum mechanical wave function, and its environment by an appropriate potential profile, Schrödinger wave mechanics defines eigenfunctions and eigenvalues that can be associated with the cognitive and emotional experiences of that consciousness in that environment. To articulate this metaphor it is necessary to associate certain aspects of the formalism, such as the coordinate system, the quantum numbers, and even the metric itself, with various impressionistic descriptors of consciousness, such as its intensity, perspective, approach/avoidance attitude, balance between cognitive and emotional activity, and receptive/assertive disposition. With these established, a number of the generic features of quantum mechanics, such as the wave/particle duality, and the uncertainty, indistinguishability, and exclusion principles, display metaphoric relevance to familiar individual and collective experiences. Similarly, such traditional quantum theoretic exercises as the central force field and atomic structure, covalent molecular bonds, barrier penetration, and quantum statistical collective behavior become useful analogies for representation of a variety of consciousness experiences, both normal and anomalous, and for the design of experiments to study these systematically. (shrink)

There seems to exist a general consensus on how to conceptualize cooperation in the field of international relations (IR). We argue that this impression is deceptive. In practice, scholars working on the causes of international cooperation have come to implicitly employ various understandings of what cooperation is. Yet, an explicit debate about the discipline's conceptual foundations never materialized, and whatever discussion occurred did so only latently and without much dialog across theoretical traditions. In this paper, we develop an updated conceptual (...) framework by exploring the nature of these differing understandings and situating them within broader theoretical conversations about the role of cooperation in IR. Drawing on an array of studies in IR and philosophy, our framework distinguishes between three distinct types of cooperative state interactions – cooperation through tacit policy coordination (‘minimal’ cooperation), cooperation through explicit policy coordination (‘thin’ cooperation), and cooperation based on joint action (‘thick’ cooperation). The framework contributes to better theorization about cooperation in two main ways: it allows scholars across theoretical traditions to identify important sources of disagreement and previously unnoticed theoretical common ground; and the conceptual disaggregation it provides grants scholars crucial theoretical leverage by enabling type-specific causal theorization. (shrink)

Comprehensive evaluation and study of man's theories and knowledge of genetical characteristics and the evolutionary processes.

Explores the development of the ideas of evolutionary biology, particularly as affected by the increasing understanding of genetics and of the chemical basis of inheritance.

The scientific, personal, and social implications of this revolutionary work are staggering. MARGINS OF REALITY is nothing less than a fundamental reevaluation of how the world really works.

In this paper, we explore an under-investigated question concerning the class of formal models that aim at providing normative guidance. We call such models normative models. In particular, we examine the question of how normative models can successfully exert normative guidance. First, we highlight the absence of a discussion of this question – which is surprising given the extensive debate about the success conditions of descriptive models – and motivate its importance. Second, we introduce and discuss two potential accounts of (...) the success conditions of normative models. Our tentative conclusion is that the second account is more promising. (shrink)

In this paper, we explicate an underappreciated distinction between two conceptions of valuing. According to the first conception, which we call the surface-account, valuing something is exclusively a matter of having certain behavioral, cognitive, and emotional dispositions. In contrast, the second conception, which we call the layer-account, posits that valuing is constituted by the presence of certain representational mental states underlying those dispositions. In the first part of the paper, we introduce the distinction in proper detail and show that the (...) accounts have different implications regarding the valuings of agents. In the second part, we situate the accounts within the extant philosophical literature. First, we relate them to the recent debate between so-called dispositionalists and representationalists about the nature of beliefs and point out that this debate can help anticipate some of the main dialectical fault lines to be expected between surface- and layer-theorists. Second, we examine the contemporary meta-ethical debate on conceptualizing valuing, indicate that scholars have largely ignored the distinction introduced here, and outline that this oversight has substantial theoretical costs: as we show, key arguments within the meta-ethical debate require thorough re-evaluation in light of the proposed distinction. The third part of the paper illustrates the theoretical leverage of the distinction for practical research by exploring its implications for behavioral welfare economics. (shrink)

Provides a philosophical analysis of such biological concepts as natural selection, adaptation, speciation, and evolution.

Published just after the Second World War, European Literature and the Latin Middle Ages is a sweeping exploration of the remarkable continuity of European literature across time and place, from the classical era up to the early nineteenth century, and from the Italian peninsula to the British Isles. In what T. S. Eliot called a "magnificent" book, Ernst Robert Curtius establishes medieval Latin literature as the vital transition between the literature of antiquity and the vernacular literatures of later centuries. (...) The result is nothing less than a masterful synthesis of European literature from Homer to Goethe. European Literature and the Latin Middle Ages is a monumental work of literary scholarship. In a new introduction, Colin Burrow provides critical insights into Curtius's life and ideas and highlights the distinctive importance of this wonderful book. (shrink)

I analyze a number of widespread misconceptions concerning species. The species category, defined by a concept, denotes the rank of a species taxon in the Linnaean hierarchy. Biological species are reproducing isolated from each other, which protects the integrity of their genotypes. Degree of morphological difference is not an appropriate species definition. Unequal rates of evolution of different characters and lack of information on the mating potential of isolated populations are the major difficulties in the demarcation of species taxa.