Titlebook: Literature 1974, Part 2; S. Böhme,U. Esser,G. Zech Book 1975 Springer-Verlag Berlin Heidelberg 1975 astronomy.astrophysics.fields.radio as

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Karl Dörfflingconnected to COrona VIrus Disease 19 (COVID-19). The chatbot also offers mental health counseling and self-assessment exams for mental illnesses, in addition to corona virus information. The novelty of the proposed work is to provide an interface to interact with the virtual avatar in a rich environ

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Einstein Gravity and the Need for Its Modification,tions, a special role is played by expansion of the Universe and precession of Mercure perihelion, which have been proved many years ago, while other important claims of GR, such as gravitational waves and black holes, have been confirmed through direct observations only recently.