'Understanding Stellar Evolution' is based on a series of graduate-level courses taught at the University of Washington since 2004, and is written for physics and astronomy students and for anyone with a physics background who is interested in stars. It describes the structure and evolution of stars, with emphasis on the basic physical principles and the interplay between the different processes inside stars such as nuclear reactions, energy transport, chemical mixing, pulsation, mass loss, and rotation. Based on these principles, the evolution of low- and high-mass stars is explained from their formation to their death. In addition to homework exercises for each chapter, the text contains a large number of questions that are meant to stimulate the understanding of the physical principles. An extensive set of accompanying lecture slides is available for teachers in both Keynote and PowerPoint formats. Latest version updated 22 July 2022.
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In this study, the most popular CBRC destination for Japanese infertile couples was the United States. Several agencies for US CBRC exist in Japan. We can also assume that the United States is a popular destination for CBRC due to familial ties and/or a large population of Japanese-Americans as potential gamete donors. Additionally, the potential for having caregivers of Japanese descent is higher in various parts of the United States. Moreover, several TV stars have publicized their experiences of CBRC, seeking egg donation and surrogacy in the United States, possibly influencing patient perceptions and responses and, therefore, our findings. It is noteworthy that India was selected as a destination for those seeking surrogacy and South Korea for those seeking gamete donation. This might reflect the fact that India is a well-known low-cost destination for commercial surrogacy and that South Korea has physical and genetic proximity to Japan. With regard to seeking third-party reproduction procedures in emerging Asian countries, there is great concern regarding the exploitation of women who belong to socioeconomically vulnerable populations [20]. Medical tourism in emerging Asian countries is attracting increasing numbers of patients from around the world because of attractive pricing. Issues regarding CBRC should be discussed among authorities in various fields, including medical practitioners and researchers. 2ff7e9595c