Aage Bohr (1922-2009) was the central artificer of the unification of the independent (shell) -- and of the collective (liquid drop) -- models of the atomic nucleus. This unification constitutes the basis of what can be called the second discovery of the atomic nucleus, for which Aage Bohr and his close collaborator Ben Mottelson co-shared the 1975 Nobel Prize in Physics. The selected papers of Aage Bohr published in the present volume provide a clear account of Aage Bohr's ideas concerning the finite quantal many-body system. These ideas changed the nuclear paradigm and connected the field of nuclear physics with that of quantum condensed matter physics as well as with Quantum Electrodynamics (QED). It has also inspired a whole generation of theorists and experimentalists, helping to create the "Copenhagen School of Nuclear Physics" which turned the Niels Bohr Institute into the Mecca for research in this subject during the 1960s and 1970s. The legacy of Aage Bohr's scientific achievements and that of the school he founded are felt to this day in connection with the cutting-edge research carried out at the forefront of nuclear structure and nuclear reaction studies. Remembering the words of the sage that "We are dwarfs mounted on the shoulders of giants, so that we can see more and further than they", the present volume is an attempt at seeking illumination from Aage Bohr, through the reading of his masterfully written papers, and by reflecting over commonly experienced events. Furthermore, it may help practitioners acquire an overall view of the basis of modern theory of nuclear structure.
The field has expanded in so many directions, in connection with the increase in accessible energy, angular momentum, and nuclear species, and the new phenomena, which have been revealed, have stimulated conceptual developments concerning the significant degrees of freedom and their interplay in nuclear dynamics ... it would be impossible for us to provide an assessment of this vastly expanded subject with anything like the degree of comprehensiveness aimed at in the original text. At the same time, this text continues to describe the basis for the understanding of nuclear structures as we see it today ...'foreword from the new prefaceAfter many years, this classic two-volume treatise is now available again in an unabridged reprint. These volumes present the basic features of nuclear structure in terms of an integration of collective and independent particle aspects and remain a foundation for current efforts in the field. Central to the book's value is an approach that recognizes the many connections between concepts of nuclear physics and those of other many-body systems, and that deals boldly with the interplay between theory and experiment. Aside from the main text, which provides a systematic exposition of the subject, there are sections labeled ';Illustrative Examples';, which present detailed analyses of experimental results and the manner in which they illuminate the concepts developed in the text. Many useful appendices on general theoretical tools are also included, covering topics such as angular momentum algebra, symmetry problems, statistical description of level densities, and theory of nuclear reactions and decays.
During the second half of World War II, Sweden began to provide confidential assistance to its two neighbours, Norway and Denmark. This aid was in the form of so-called police camps, where refugees from these two German occupied countries could gather and prepare for a return to their homelands, when the Germans were expected to give up. In the home countries, these police forces were to restore order in society, and this motivation from neutral Sweden was tolerated by the Germans. But as time went on, the character changed from being police forces to becoming more and more regular military troops, although with simple weapons. The so-called Danish Brigade eventually consisted of nearly 5,000 Danish refugees, who were placed in various camps around Sweden. Among these Danish refugees, were slightly more than a dozen Danish pilots, who were secretly placed in pairs on different Swedish airbases. They eventually gained access to Sweden's foremost military aircraft, namely the Saab B17 dive-bomber. In the last days of the war, these pilots gathered at the F7 Såtenäs airbase on the shores of Lake Vänern, where they formed the Danish Brigade's Air Unit. Its main purpose was to support the Danish Brigade's return to Denmark. One of these pilots was the author's father, Lieutenant Carlo Hjalmar Sandqvist. Carlo is the "Pilot in the Danish Brigade in Sweden during the Second World War." This book presents inside views of the Danish resistance movement and German concentration camps in Denmark during World War II, and a dramatic escape. It describes the Danish Brigade in Sweden - a secret organization in which Sweden trained up to 5,000 Danish refugees as "police troops", eventually a paramilitary organization. It also presents the secret Swedish military plan for "Saving Denmark" in the last year of the war.
This bibliography on Sren Kierkegaard carries on the work of Jens Himmelstrup's international bibliography (1962). It collates everything written about Kierkegaard - books, contributions to edited collections, and journals - and also features an appendix of primary text editions and translations. Discussion notes, reviews, etc., are catalogued according to the items they refer to. The bibliography contains more than 5,600 primary entries and is a testament to the expanding worldwide interest in the Danish philosopher. It also remedies the deeply-felt need for a collected overview of the extensive literature on Kierkegaard.
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