Peter Wiedemann – författare

Through six outstanding and award-winning editions, Ryan's Retina has offered unsurpassed coverage of this complex subspecialty-everything from basic science through the latest research, therapeutics, technology, and surgical techniques. The fully revised 7th Edition, edited by Drs. SriniVas R. Sadda, Andrew P. Schachat, Charles P. Wilkinson, David R. Hinton, Peter Wiedemann, K. Bailey Freund, and David Sarraf, continues the tradition of excellence, balancing the latest scientific research and clinical correlations and covering everything you need to know on retinal diagnosis, treatment, development, structure, function, and pathophysiology. More than 300 global contributors share their knowledge and expertise to create the most comprehensive reference available on retina today.Features sweeping content updates, including new insights into the fundamental pathogenic mechanisms of age-related macular degeneration, advances in imaging including OCT angiography and intraoperative OCT, new therapeutics for retinal vascular disease and AMD, novel immune-based therapies for uveitis, and the latest in instrumentation and techniques for vitreo-retinal surgery. Includes five new chapters covering Artificial Intelligence and Advanced Imaging Analysis, Pachychoroid Disease and Its Association with Polypoidal Choroidal Vasculopathy, Retinal Manifestations of Neurodegeneration, Microbiome and Retinal Disease, and OCT-Angiography. Includes more than 50 video clips (35 new to this edition) highlighting the latest surgical techniques, imaging guidance, and coverage of complications of vitreoretinal surgery. New videos cover Scleral Inlay for Recurrent Optic Nerve Pit Masculopathy, Trauma with Contact Lens, Recurrent Retinal Detachment due to PVR, Asteroid Hyalosis, and many more. Contains more than 2,000 high-quality images (700 new to this edition) including anatomical illustrations, clinical and surgical photographs, diagnostic imaging, decision trees, and graphs. Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.

The Fovea: Structure, Function, Development, and Disease summarizes the current biological knowledge regarding the two types of the vertebrate fovea (and its main structural elements, the M�ller cells). This information is then used to explain different aspects of human vision, foveal development, and macular disorders. Sections give an overview of the retinal structure and the different types of retinal glia, survey the structure and function of the primate and non-mammalian fovea types, discuss foveal development-with a focus on the human fovea, cover the roles of M�ller cells and astrocytes in the pathogenesis and regeneration of various human macular disorders are described.

Using a translational approach, this reference is a valuable text for scientists, clinicians and physicians interested in the fovea. Readers will gain a new understanding of the cellular basics of the fovea, which is the most important part of the eye.

Adopts a translational approach, summarizing the biological knowledge regarding the structure and function of the fovea, the roles of M�ller cells in mediating the structural integrity, and function of the fovea Provides overviews of both basic types of the vertebrate fovea, countering the popular belief that there is only one type of the vertebrate fovea, the human fovea Thoroughly shows the mechanisms involved in the development of the fovea that explain the rapid improvement of visual acuity in newborns Explains pathological changes in the foveal structure and function with evaluation pointing toward possible prevention and/or cure

An issue facing the citizens and governments of modern democracies is the direct participation of the public in the solution of environmental problems. Governments are increasingly experimenting with approaches that give citizens a greater say in the environmental debate. A crucial question is addressed: how can we measure the performance of the citizen participation process? An approach to the problem is taken by viewing public participation as an act of communication. Drawing on Jurgen Habermas' "Critical Theory of Communication", a normative framework is developed around the central area of citizen participation and competence in knowledge verification. A theoretical and methodological basis for the systematic evaluation of models for environmental discourse is provided. Eight models of citizen participation are studied, from North America and Europe. Each model is evaluated and criticized in paired chapters written by scholars.

Neue Technologien, deren Risikopotenziale noch im Dunkeln liegen, lösen oftmals Ängste und Befürchtungen aus. Ist das Vorsorgeprinzip geeignet, damit umzugehen? Mit dieser Frage befasst sich das vorliegende Buch. Auf der Basis empirischer Forschung wird gezeigt, dass das vorsorgende Risikomanagement alle ideologischen Sehnsüchte abweisen muss. Erst evidenz-basierte Informations- und Kommunikationsstrategien bieten einen tragfähigen Ansatz, um fatale Fehler zu vermeiden.

Das vorliegende Buch ist in den Jahren 1988-1990 im Rahmen der Programm­ gruppe "Mensch-Umwelt-Technik" des Forschungszentrums Jülich entstanden. Diese sozialwissenschaftlich orientierte Gruppe befaßt sich seit 1988 mit der Analyse der Bedingungen, Probleme und Möglichkeiten der Kommunikation über technikbedingte Risiken. Angesichts des vielfältigen Gebrauchs und der oft unklaren Konturen des Risiko-Begriffes in der wissenschaftlichen und gesellschaftlichen Risiko-Debatte stellte sich die Gruppe die Aufgabe, die Gemeinsamkeiten und Unterschiede der Risiko-Kommunikation in verschiedenen, kontrovers diskutierten Technikberei­ chen zu untersuchen. Dazu wurden Experten in den Bereichen Gentechnik, Chemie, Kerntechnik, Informations- und Kommunikationstechnik sowie im Be­ reich der Klimaforschung beauftragt, das Problem der Risiko-Kommunikation in ihrem jeweiligen Bereich in einer Expertise aufzuarbeiten und zusammenfassend darzustellen. Diese Expertisen wurden in der Programmgruppe MUT ausführlich diskutiert und einem systematischen Vergleich unterzogen. Das vorliegende Buch präsentiert die Ergebnisse; zum einen die fünf Expertisen selbst, zum anderen drei vergleichende Analysen zu Themen, Akteuren und Stra­ tegien der Risiko-Kommunikation. Wir hoffen, daß das Buch selbst einen Beitrag zur Verbesserung der wissenschaftlichen und gesellschaftlichen Kommunikation über Risiken leistet. Wir danken den Autoren der Expertisen für ihre Geduld und ihre Kooperation sowie Herrn Hans Ulrich Stegelmann und Frau Waltraud Freier-Linder für die Bearbeitung des Manuskripts.