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In this timely exploration of sustainable actions, Christian Berg unpacks the complexity in understanding the barriers we face in moving towards a sustainable future, providing solution perspectives for every level, from individuals to governments and supra-national organizations offering a lucid vision of a long-term and achievable goal for sustainability. While the 2030 Agenda has already set ambitious targets for humanity, it offers little guidance for concrete actions. Although much is already being done, progress seems slow and some actions aiming at sustainability may be counterproductive. Different disciplines, societal actors, governmental departments and NGOs attribute the slow prog...
The Fourier transform and the Laplace transform of a positive measure share, together with its moment sequence, a positive definiteness property which under certain regularity assumptions is characteristic for such expressions. This is formulated in exact terms in the famous theorems of Bochner, Bernstein-Widder and Hamburger. All three theorems can be viewed as special cases of a general theorem about functions qJ on abelian semigroups with involution (S, +, *) which are positive definite in the sense that the matrix (qJ(sJ + Sk» is positive definite for all finite choices of elements St, . . . , Sn from S. The three basic results mentioned above correspond to (~, +, x* = -x), ([0, 00[, +,...
Reprint of the original, first published in 1862.
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This is a book about shifting national identities in Belgium. It is an attempt to show how these identities emerged and evolved. It aims at explaining why the Belgian identity, which in 1830 was so strong that it could create a new nation-state, has become so weak that today it has to accept a mere overarching role above and in competition with the new national loyalties. More and more people wonder whether this country will survive.
After "Corona" comes the war! Suddenly it becomes clear that Europe has been fooling itself for years with the hope of "change through trade". And while there is intense debate about arms deliveries - yes or no, or maybe just 5000 helmets - the war reveals another problem: the collapse of the supply chain cycle! The supply of grain and vegetable oils is decreasing dramatically. Ukraine exported over 16 million tons of grain annually, mostly to North Africa and the Middle East. And while heated debates continue over the approval of Nord Stream 2, Russian gas continues to flow to Europe via Nord Stream 1, indirectly financing Putin's war. And while possible arms deliveries continue to be debated, we lurch into the next crisis.