Knowing the individual skills and competences of one's group members may be important for deciding from whom to learn (social learning), with whom to collaborate and whom to follow. We investigated whether 12 jackdaws could select conspecifics based on their helping skills, which had been exhibited in a previous context. The birds were tested in a blocked-exit-situation, where they could choose between two conspecifics, one of which could be recruited inside. One conspecific had previously displayed the ability to open the (...) exit door whilst the other individual lacked the skill. The subjects showed a significant preference for the skilled conspecific if they had previously directly benefited from this skill. If they had merely observed the skilled (and non-skilled) individual opening (or failing to open) the exit door, they did not preferably choose the skilled conspecific. Taken together, these results suggest that jackdaws are capable of assessing other individuals' competence under certain circumstances. (shrink)

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be (...) preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

Every student of the twentieth century has heard both of the great Viennese economist Friedrich von Hayek and of the equally great philosopher Ludwig Wittgenstein. But what isn't well known is that the two were distant cousins and that, shortly after Wittgenstein's death in 1951, Hayek set out to write a biography of his cousin. The project was derailed by Wittgenstein family members, who felt it was to soon to publish such a work - especially one like Hayek's, so candid (...) about his cousin's difficulties and depressions. But Hayek's draft acquired an underground readership, and Wittgensteins biographers have used it extensively. Here finally, is the text of that work itself - a true goldmine in being one great thinker's view of another, whom he knew personally, even if not well. Hayek's account has the great merit of being close to its subject; the draft, moreover sheds light, not only on Wittgenstein but on Hayek as well. (shrink)

Friedrich August von Hayek war ein österreichischer Ökonom und Philosoph. In Wien in eine Familie von Akademikern hineingeboren, studierte Hayek zunächst Rechtswissenschaften an der Universität Wien, zeigte aber auch großes Interesse an Psychologie und Volkswirtschaftslehre. So nahm er regelmäßig an Seminaren von Ludwig von Mises Teil und wurde 1921 in Rechtswissenschaften und 1923 in Staatswissenschaften promoviert.

DigiCat Verlag stellt Ihnen diese Sonderausgabe des Buches "Das Problem des platonischen Symposion" von August Ritter von Kleemann vor. Jedes geschriebene Wort wird von DigiCat als etwas ganz Besonderes angesehen, denn ein Buch ist ein wichtiges Medium, das Weisheit und Wissen an die Menschheit weitergibt. Alle Bücher von DigiCat kommen in der Neuauflage in neuen und modernen Formaten. Außerdem sind Bücher von DigiCat als Printversion und E-Book erhältlich. Der Verlag DigiCat hofft, dass Sie dieses Werk mit der Anerkennung und Leidenschaft (...) behandeln werden, die es als Klassiker der Weltliteratur auch verdient hat. (shrink)

In den »Prolegomena«, von Moses Heß 1841 als der zukunftsträchtige Durchbruch zu einer neuen Epoche des Denkens erkannt und aufgenommen, unternahm der polnische Kosmopolit und Michelet-Schüler Cieszkowski bereits vor Marx den Versuch einer kritischen Aufhebung der Hegelschen Geschichtsphilosophie in die »Philosophische Tat«. Cieszkowskis Forderung, den Standpunkt der bloßen, von Hegel auf ihren Höhepunkt getriebenen begreifenden Reflexion auf die bisherige Geschichte zu verlassen und an die »wirkliche Realisierung der erkannten Wahrheit«, d.h. an die tätige und vernunftgeleitete Gestaltung der »Zukunft« zu gehen, (...) unterscheidet sich allerdings von der Marx' schen Forderung nach der revolutionären Veränderung der Welt. Rüdiger Bubner arbeitet diesen Unterschied in seiner Einleitung systematisch heraus. Jan Garewicz erläutert in seinem Nachwort im Rekurs auf das Gesamtwerk, weshalb Cieszkowski den vom ihm geforderten Umschlag der Theorie in die Praxis nicht als einen Schritt der Abkehr von der Philosophie, sondern als deren Vollendung begriff. (shrink)

Volume 2, part 1 "herausgegeben von Georg Braungart; begrèundet von Ernst Behler in Zusammenarbeit mit Frank Jolles;" volume 3 "begrèundet von Ernst Behler und Frank Jolles; herausgegeben von Claudia Becker.".

The article reviews the book Konstytucja wolności [The Constitution of Liberty], by Friedrich August von Hayek.

Keine ausführliche Beschreibung für "Prolegomena zur Historiosophie" verfügbar.

Labeling, Recovering and Reactivating: The Role of Labels on Microscope Slides in the Finding System on the Basis of Alzheimer's Auguste D. Preparations. This study discusses the role of labels in the process of the reactivation of preparations. Labels on slides together with corresponding lists on cards or sheets build what is here called a specific finding system. In the sciences of the archive the disciplinary memory together with such a finding system are the basis to the ability of (...) the sciences today to reactivate preparations from the beginning of the last century as it occurs with the Auguste D. preparations. The case of Alzheimer's micropreparations of brain parts of Auguste D. – the case that he used to show that hers was a specific brain disease unknown before – serves to describe Alzheimer's writing on the labels. It is compared to slides and labels prepared by other medical researchers between the 1890s and 1920s and the respective finding systems. Being an epistemologicum, micropreparations, as they are data, in their hybrid status of both image and material in one, cross the boundaries between icon and index. This is proven by the reactivation of Auguste D. micropreparations in molecular biological studies over 100 years after their production. (shrink)

The article reviews the book Konstytucja wolności [The Constitution of Liberty], by Friedrich August von Hayek.

Autor omawia po raz pierwszy w literaturze przedmiotu działalność współzałożonego przez Cieszkowskiego, w latach 1843-1850, Towarzystwa Filozoficznego w Berlinie. Autor wprowadza nas w tematykę pierwszych posiedzeń Towarzystwa i rolę, jaką w nich odgrywał Cieszkowski.

A neglected Young Hegelian, Cieszkowski published prolifically in economics and philosophy, but the work most influential on the Hegelians was his Prolegomena Zur Historiosophie . Rejecting the conservative interpretation of Hegel, it denied that the end of history had been reached, celebrated the will as transcending thought, and anticipated a future in which being and thinking would find their syntheses in praxis. At once a critique of Hegel and a development of Hegelianism, his work is most notable for its millennial (...) optimism. (shrink)

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