The major topics in this volume are electroweak physics (including LEP physics and radiative corrections), CP violation and lepton number nonconservation, and neutrino physics and astroparticle physics. The latest progress in both the theoretical and the experimental aspects of the topics is discussed.

In 2018 solar physics and neutrino research celebrated various historical highlight events. Among them were 80 years of the paper by Hans Bethe discussing solar fusion cycles as energy source of stars, the first results from the Homestake chlorine experiment celebrating 50 years as well as the discovery of neutrino oscillations 20 years ago by Super-Kamiokande. Since the last International Solar Neutrino Conference in 1997, solar neutrino detection was recognized by two Nobel Prizes, given to Raymond Davis Jr. (2002) and Arthur McDonald (2015).The present proceedings volume is based on the given talks and provides a comprehensive and detailed overview of recent developments and discoveries in the field of solar neutrino physics. Articles were written by renowned experts of their field and cover a wide range in experiments and theory from current and future solar neutrino measurements, elemental abundances, nuclear astrophysics, helioseismology, impact on general neutrino physics and more. Further contributions focus on experiments like Homestake, SAGE and GALLEX which are widely known as historic milestones in the field of solar neutrino physics.

This book aims to integrate, in a pedagogical and technical manner, with detailed derivations, all essential principles of fundamental theoretical physics as developed over the past 100 years. It covers: Quantum physics and Stability Problems in the Quantum World, Minkowski Spacetime Physics Particle Classifications and Underlying Symmetries, Symmetry Violations, Quantum Field Theory of Particle Interactions, Higgs Field Physics, Supersymmetry: A Theory with Mathematical Beauty Superstrings, Gravity and Supergravity, General Relativity Predictions, including Frame Dragging, Intricacies of Black Hole Physics, Perturbative and Non-perturbative Quantum Gravity Intricacies of Modern Cosmology, including Inflation and Power Spectrum If you are in the process of learning, or are lecturing on, any of the subjects above, then this is your book - irrespective of your specialty. With over-specialization and no time to master all the fields given above, students, and perhaps many physicists, may find it difficult to keep up with all the exciting developments going on, and are even less familiar with their underlying technicalities: e.g. they might have heard that the Universe is 13.8 billion years old, but have no idea on how this number is actually computed. This unique book will be of great value to graduate students, instructors and researchers interested in the intricacies and derivations of the many aspects of modern fundamental theoretical physics. And, although a graduate level book, some chapters may also be suitable for advanced undergraduates in their final year.