Abstract:THANK YOU With 90 years and above, no longer can I remain productive in Science; physical and mental capabilities have declined as well as memory. In addition, progress and change in all areas of physics have advanced so fast that previously acquired knowledge no longer is su cient to let one follow modern developments. At most one can try to keep super cially informed about the recent trends and developments. So the present publication not only is greatly honoring me, but it is also help and encouragement for… Show more
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