In what follows I wish to raise and eventually to suggest an answer to the following question: What is the rationality of human communication? Why should we ask this question? By way of a first approach I would place the problem within the context of the so called “pragmatic turn” of analytic philosophy, i.e. within a context in which the concept of the rationality of logical syntactics and logical semantics of language systems has been integrated into, or superseded by, the (...) rationality concept of the human use of language—say, e.g., of arguments. (shrink)

Abzj proposed, in a fragment established and translated herein, two methods to build a parabolic mirror. The lack of demonstration, particularly for the first method, raises a difficult question of interpretation. To understand this method, O. Neugebauer used, in an unpublished article translated herein, concepts of descriptive geometry. He then eliminated the space construction used, to keep only simple geometrical considerations known by the Greeks. The second interpretation, given by R. Rashed, is based on the geometrical practices of al-Bnhzj from (...) Ibn Sinān seems to support this last interpretation. (shrink)

The Greek astronomer and geometrician Apollonius of Perga produced pioneering written work on conic sections in which he demonstrated mathematically the generation of curves and their fundamental properties. His innovative terminology gave us the terms 'ellipse', 'hyperbola' and 'parabola'. The Danish scholar Johan Ludvig Heiberg, a professor of classical philology at the University of Copenhagen, prepared important editions of works by Euclid, Archimedes and Ptolemy, among others. Published between 1891 and 1893, this two-volume work contains the definitive Greek text (...) of the first four books of Apollonius' treatise together with a facing-page Latin translation. Volume 2 contains the fourth book in addition to other Greek fragments and ancient commentaries, notably that of Eutocius, as well as the editor's Latin prolegomena comparing the various manuscript sources. (shrink)

Platons Politeia (347 v. Chr.), der utopische Entwurf eines gerechten Staats, gilt nicht nur als sein "Hauptwerk", sondern auch als das wirkungsgeschichtlich bedeutendste Werk der politischen Philosophie in der Geschichte des europäischen Denkens. Für die 11. Auflage überarbeitete K. Bormann die Apeltsche Übersetzung anhand der Oxforder Ausgabe von Burnet und anderen. Beigegeben wurde eine ausführliche Literaturübersicht, Anmerkungen und Register sowie eine Einleitung.

Nachdruck der Vorlesungsreihe aus dem Jahr 1916.

In the field of educational administration there have been several years of active debate over how America's school systems are run. Contemporary educational administrators have been forced to reflect not only on educational policy and practice, but on the very nature of their position. How does administration contribute to the type of society we have? In what ways does it impede or enhance our cultural ideals and values? "Paradigms and Promises" offers an unorthodox solution by presenting administration as an arena (...) for critical reflection and humanistic action, rather than a more technically-oriented style of management. Foster's critical analysis is premised on an understanding of the relationship of theory to practice, and as he provides alternative theories, he sheds new light on educational administration. Orthodox administrative theory receives heavy criticism in this text. Foster employs progressive critical theory as well as conventional analyses in critical appraisal, and advocates a dialectical concept, through which administrators, teachers and students are encouraged to challenge and question each other - the eventual result being a more responsive, democratically-run system. (shrink)