This thesis contributes to the field of inverse problems with sparsity constraints. Since the pioneering work by Daubechies, Defries and De Mol in 2004, methods for solving operator equations with sparsity constraints play a central role in the field of inverse problems. This can be explained by the fact that the solutions of many inverse problems have a sparse structure, in other words, they can be represented using only finitely many elements of a suitable basis or dictionary. Generally, to stably solve an ill-posed inverse problem one needs additional assumptions on the unknown solution--the so-called source condition. In this thesis, the sparseness stands for the source condition, and with that in mind, stability results for two different approximation methods are deduced, namely, results for the Tikhonov regularization with a sparsity-enforcing penalty and for the orthogonal matching pursuit. The practical relevance of the theoretical results is shown with two examples of convolution type, namely, an example from mass spectrometry and an example from digital holography of particles.
This thesis contributes to the field of inverse problems with sparsity constraints. Since the pioneering work by Daubechies, Defries and De Mol in 2004, methods for solving operator equations with sparsity constraints play a central role in the field of inverse problems. This can be explained by the fact that the solutions of many inverse problems have a sparse structure, in other words, they can be represented using only finitely many elements of a suitable basis or dictionary. Generally, to stably solve an ill-posed inverse problem one needs additional assumptions on the unknown solution--the so-called source condition. In this thesis, the sparseness stands for the source condition, and with that in mind, stability results for two different approximation methods are deduced, namely, results for the Tikhonov regularization with a sparsity-enforcing penalty and for the orthogonal matching pursuit. The practical relevance of the theoretical results is shown with two examples of convolution type, namely, an example from mass spectrometry and an example from digital holography of particles.
This is a new edition of the first comprehensive text to show how the advances in molecular and cellular biology and in the basic neurosciences have brought the revolution in molecular medicine to the field of psychiatry. The book begins with a review of basic neuroscience and methods for studying neurobiology in human patients then proceeds to discussions of all major psychiatric syndromes with respect to knowledge of their etiology, pathophysiology, and treatment. Emphasis is placed on synthesizing information across numerous levels of analysis, including molecular biology and genetics, cellular physiology, neuroanatomy, neuropharmacology, and behavior, and in translating information from the basic laboratory to the clinical laboratory and finally to clinical treatment. Editors Dennis Charney and Eric Nestle, along with their six section editors and over 150 contributors, have revised and updated all 80 chapters from the previous edition and have added new chapters on topics relating to, for example, genetics, experimental therapeutics, and late-life mood disorders. Both a textbook and a reference book, Neurobiology of Mental Illness is intended for psychiatrists, neuroscientists, and upper level students.
With over 30,000 translations, including everyday idioms and expressions, Essential Dutch Dictionary is the perfect tool to support your Dutch learning. This new edition is fully updated with a guide to usage and insights from the author to help you learn and remember new words and phrases. New interactive features: NOT GOT MUCH TIME? One, five and ten-minute introductions to key principles to get you started. AUTHOR INSIGHTS Lots of instant help with common problems and quick tips for success, based on the author's many years of experience. TEST YOURSELF Tests and online to keep track of your progress. EXTEND YOUR KNOWLEDGE Extra online articles at: www.teachyourself.com to give you a richer understanding of the culture and history of the Netherlands.
Inhumanities is an unprecedented account of the ways Nazi Germany manipulated and mobilized European literature, philosophy, painting, sculpture and music in support of its ideological ends. David B. Dennis shows how, based on belief that the Third Reich represented the culmination of Western civilization, culture became a key propaganda tool in the regime's program of national renewal and its campaign against political, national and racial enemies. Focusing on the daily output of the Völkischer Beobachter, the party's official organ and the most widely circulating German newspaper of the day, he reveals how activists twisted history, biography and aesthetics to fit Nazism's authoritarian, militaristic and anti-Semitic world views. Ranging from National Socialist coverage of Germans such as Luther, Dürer, Goethe, Beethoven, Wagner and Nietzsche to 'great men of the Nordic West' such as Socrates, Leonardo and Michelangelo, Dennis reveals the true extent of the regime's ambitious attempt to reshape the 'German mind'.
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