The Yearbook on Space Policy aims to be the reference publication analyzing space policy developments. Each year it presents issues and trends in space policy and the space sector as a whole. Its scope is global and its perspective is European.
The ageing of the world’s population is one of the major achievements of modern society. By 2050, an estimated 2 billion people will be aged 60 years or over. However, ageing poses major challenges and this is especially true for the field of ophthalmology, given that the major eye diseases – age-related macular degeneration, glaucoma, and cataract – predominantly affect the elderly. The challenges facing ophthalmology in an ageing society have not previously been addressed in a comprehensive way, although there are common denominators of the various eye diseases that affect the elderly. This book provides such a comprehensive overview encompassing epidemiology, risk factors, current treatment and prophylaxis, disability, co-morbidity, and the impact on quality of life. World leaders in their respective fields provide state-of-the-art knowledge on the geriatric aspects of ophthalmology that will help to improve the management of this growing patient population.
Over the last decade, there has been renewed interest in human retinal electrophysiology as a technique for studying both the normal human retina as well as how retinal function is affected by disease. The electrical trace recorded as an electroretinogram (ERG) is initiated by light absorption in the (rod and cone) photoreceptors that subsequently activates post-receptoral pathways. It has been difficult to separately investigate ERG signals that are driven by one of the three different cone photoreceptor subtypes, or to distinguish ERG activity derived from separate post-receptoral rod pathways. In this book, new methodological approaches are presented to overcome these difficulties. The selected studies reported herein use novel ERG techniques that have advanced our understanding of both retinal physiology and pathophysiology and should ultimately help to develop better diagnostic tools.
Zur Zeitphilosophie bei Husserl, Bergson und Heidegger mit einem Exkurs zu Proust
254pagine
9 ore di lettura
"Obwohl Prousts souvenir involontaire ein allerpersönlichstes Erleben zeitigt und auf einzigartige Weise mit der individuellen Lebensgeschichte verknüpft ist, ist sein Auftreten nicht an einen einsichtigen Willensakt, sondern an die radikale Unverfügbarkeit des Zufalls gebunden." Dass Erinnerung in zeitlichem Sinn einen besonderen Zugang zu Authentizität darstellt, ist die leitende Hypothese für die Erörterungen zur Zeitphilosophie von Husserl, Bergson und Heidegger und diese gewinnt in der Interpretation von Prousts Roman "A la recherche du temps perdu" von Seiten der Dichtung zusätzliche Plausibilität.