Conformal Killing spinors and special geometric structures in Lorentzian geometry - a survey

This paper is a survey on special geometric structures that admit conformal Killing spinors based on lectures, given at the ``Workshop on Special Geometric Structures in String Theory'', Bonn, September 2001 and at ESI, Wien, November 2001. We discuss the case of Lorentzian signature and explain which geometries occur up to dimension 6.Comment: Latex2.09, 13 page

Kant's Non-Absolutist Conception of Political Legitimacy –– How Public Right ‘‘Concludes’’ Private Right in the ““Doctrine of Right””

Contrary to the received view, I argue that Kant, in the “Doctrine of Right”, outlines a third, republican alternative to absolutist and voluntarist conceptions of political legitimacy. According to this republican alternative, a state must meet certain institutional requirements before political obligations arise. An important result of this interpretation is not only that there are institutional restraints on a legitimate state's use of coercion, but also that the rights of the state are not in principle reducible to the rights of individuals. Thus, for Kant, political obligations are intimately linked to the existence of a certain kind of republican institutional framework

Organic Viticulture in Europe and the European Union

In this article, some key data on organic grape prodcution are presented. Organic vines were grown in Europe on more than 230,000 hectares at the end of 2011 (217,000 hectares within the European Union) according to a survey by the Research Institute of Organic Agriculture (FiBL). The largest areas are in Spain, France and Italy. One third of Europe’s organic grape area is in Spain. Most of the organic grapes are grown for wine, even though in Turkey a large part of the production is used for raisins

Organic Farming Research Worldwide – An Overview

Research in organic farming has increased considerably in recent years. Up to now, activity has been greatest in Europe, but recently organic research has increased in other parts of the world, and more and more players are appearing on the scene. Research is mostly carried out in a national context, but international coordination and cooperative efforts are increasing. This article summarizes some key facts about organic farming research worldwide

Organic Farming in Europe

In this article latest developments in Europe are presented: › Current statistics › Review of the European political and legal framework for organic agriculture › EU regulation on organic farming › Policy support › Action plans › Research › Progress of the OrganicDataNetwork project › Successful policy work of IFOAM EU › Further reading › Website

Lockean Freedom and the Proviso’s Appeal to Scientific Knowledge

I argue in this paper that Locke and contemporary Lockeans underestimate the problems involved in their frequent, implicit assumption that when we apply the proviso we use the latest scientific knowledge of natural resources, technology, and the economy’s operations. Problematic for these theories is that much of the pertinent knowledge used is obtained through particular persons’ labor. If the knowledge obtained through individuals’ labor must be made available to everyone and if particular persons’ new knowledge affects the proviso’s proper application, then some end up without freedom to pursue their own ends and some find their freedom subject to others’ arbitrary will

Information sources: Overview

In this chapter, some of the major information sources for information related to organic farming are presented. The International Trade Centre (ITC) has recently considerably expanded its information and market access services. These are presented in detail

On a Supposed Right to Lie from Philanthropy

Lexicon entry on Kant's Essay "On a Supposed Right to Lie from Philanthropy.

Lorentzian twistor spinors and CR-geometry

We prove that there exist global solutions of the twistor equation on the Fefferman spaces of strictly pseudoconvex spin manifolds of arbitrary dimension and we study their properties.Comment: Latex2.09, 32 page