This course aims to raise awareness on the critical role of space technology in our daily lives and the important implications it has on domestic policymaking and international relations. The first part of the course, titled “Space and Society”, provides an overview of major space technologies and their applications. It then demonstrates how space assets have become a critical infrastructure on which advanced societies are over-reliant, and the hazards and threats that they are facing. The second part of course delves into political science and international relations. It addresses the various approaches to space policymaking, the structure of international relations in outer space and the major challenges ahead for the space sector. This course will be a part of the global effort to map threats and consequences for space sustainability conducted by the United Nations Institute of Disarmament Research.

This course examines Japan's foreign policy and its relationship with the world since 1945. The class will be held as a seminar, and active participation is expected. There are three underlying perspectives/themes throughout the class, which we will refer to during each session. -Realist/Strategic perspective: The US-Japan alliance is supported by the public as the best way to keep Japan safe and secure, the “Plan A” for Japan. What does Japan need to do to keep “Plan A” viable? Or, should Japan need to consider a “Plan B” or some revisions to the “Plan A”? -Norms/Values perspective: I will discuss the four “values” inherent in Japanese foreign policy: pacifism, universal values, developmentalism, and Asianism. How do they change and intersect across time? To what extent do values matter? Are they shared by the public and reflected in policy? -Domestic Politics/Civil-Military Relations perspective: How do Japan’s foreign policy decision-making process and institutions differ from other countries? What are its historical origins, and how has it evolved?

This course examines Japan's foreign policy and its relationship with the world since 1945. The class will be held as a seminar, and active participation is expected. There are three underlying perspectives/themes throughout the class, which we will refer to during each session. -Realist/Strategic perspective: The US-Japan alliance is supported by the public as the best way to keep Japan safe and secure, the “Plan A” for Japan. What does Japan need to do to keep “Plan A” viable? Or, should Japan need to consider a “Plan B” or some revisions to the “Plan A”? -Norms/Values perspective: I will discuss the four “values” inherent in Japanese foreign policy: pacifism, universal values, developmentalism, and Asianism. How do they change and intersect across time? To what extent do values matter? Are they shared by the public and reflected in policy? -Domestic Politics/Civil-Military Relations perspective: How do Japan’s foreign policy decision-making process and institutions differ from other countries? What are its historical origins, and how has it evolved?

This course aims to raise awareness on the critical role of space technology in our daily lives and the important implications it has on domestic policymaking and international relations. The first part of the course, titled “Space and Society”, provides an overview of major space technologies and their applications. It then demonstrates how space assets have become a critical infrastructure on which advanced societies are over-reliant, and the hazards and threats that they are facing. The second part of course delves into political science and international relations. It addresses the various approaches to space policymaking, the structure of international relations in outer space and the major challenges ahead for the space sector. This course will be a part of the global effort to map threats and consequences for space sustainability conducted by the United Nations Institute of Disarmament Research.

The purpose of this course is to examine how Japan’s transformation into a modern nation was shaped and represented through visual culture. Great emphasis is placed on group work, as students are expected to actively collaborate with peers to analyze visual materials, share perspectives, and co-construct knowledge. Through these interactive and cooperative activities, students will also have the opportunity to enhance their English communication skills and connect with a community of internationally minded peers. この授業では、日本が近代国家へと変化していく過程を、当時の絵画や写真、広告などの「視覚資料」を通して学びます。授業では、オンライン教材やビデオ講義、歴史資料を用いながら、ディスカッションや課題に取り組みます。特にグループワークを重視しており、視覚資料の分析やプレゼンテーションなどを通して、学生同士が協力しながら学びを深めていきます。これらの活動を通して、視覚的リテラシー、歴史的思考力、異文化理解力を養うとともに、英語によるコミュニケーション能力の向上も目指します。国際的な視野を広げたい方や、英語を実践的に使って学びたい方に適した内容となっています。

宇宙から飛来する宇宙線、ガンマ線、ニュートリノなどを観測し、宇宙における高エネルギー天体現象や、暗黒物質などの素粒子物理を研究する分野を宇宙素粒子物理学（Astroparticle Physics）と呼ぶ。この分野の歴史的な成果として、CP対称性を破るK中間子などの新粒子の発見、最高エネルギー宇宙線の発見、ガンマ線バーストやブレーザーなどのブラックホール起源ガンマ線の検出、ニュートリノ振動の発見などが挙げられる。近年の観測技術の向上により、複数の観測手段を組み合わせて議論するマルチメッセンジャー天文学の時代となり、著しい発展を見せている分野である。この講義では、宇宙における高エネルギー粒子の起源や、それらの物理的性質、観測原理について基礎的なところから学ぶことを目標とする。講義内容については以下の英語版を参照。大きく3つに分かれている。 Astroparticle physics is a research field that studies high-energy astronomical phenomena and particle physics including dark matter via observations of cosmic rays, gamma-rays, neutrinos and so on. Some of representative discoveries done in this field are new particles such as kaon, which shows CP violation, ultra-high-energy cosmic rays, gamma-rays from black holes like gamma-ray bursts and blazars, and neutrino oscillation. Recent progress in the detector technology leads us to the era of multi-messenger astronomy, which is astronomy via collaborative observations of different species of particles. So this research field has been greatly developed in this decade. The purpose of this lecture is learning basics of origins of high-energy particles, physical properties of particles, and detection technique. The contents are divided into three parts as follows. １．Origin of High-energy Particles High-energy particles are accelerated somewhere in the universe, and produce secondary particles via interacting with other particles. Sources and the production mechanisms of such particles are not yet revealed, so numerous models have been proposed. In this lecture, we learn Fermi acceleration at shock waves as a promising particle acceleration mechanism, cosmic ray propagation in the interstellar medium, and emission mechanisms of gamma-rays and neutrinos. We also learn high-energy astrophysical phenomena as particle production sites. ２．Neutrino Physics Neutrinos have long been assumed to be massless, and the Standard Model of particle physics, based on this assumption, has been established as the paradigm that explains the results of many experiments to a high degree of accuracy. In 1998, however, it was discovered that neutrinos have finite mass and come in different flavors. The assumptions of the Standard Model turned out to be wrong, and this had a major impact on our understanding of particle physics and the nature. In this lecture, we will discuss the fundamental properties of neutrinos, their experimental verification mainly by neutrino oscillations, and the remaining unknowns and future experiments. ３．Dark Matter 　The mystery of dark matter is one of the most critical issues in cosmology and particle physics because it plays a leading role in shaping the universe and its potential to interrelate with various problems in particle physics. There are three main approaches to the experimental verification of dark matter: accelerator generation, indirect detection by observing signals from the decay and the annihilation of dark matter in space, and direct detection by capturing events in which dark matter around us collides with detectors. Research to elucidate the nature of dark matter is being actively pursued using all of these approaches. In this lecture, we will discuss various dark matter candidates and the principles and current status of direct and indirect search experiments for them.

This course aims to raise awareness on the critical role of space technology in our daily lives and the important implications it has on domestic policymaking and international relations. The first part of the course, titled “Space and Society”, provides an overview of major space technologies and their applications. It then demonstrates how space assets have become a critical infrastructure on which advanced societies are over-reliant, and the hazards and threats that they are facing. The second part of course delves into political science and international relations. It addresses the various approaches to space policymaking, the structure of international relations in outer space and the major challenges ahead for the space sector. This course will be a part of the global effort to map threats and consequences for space sustainability conducted by the United Nations Institute of Disarmament Research.

宇宙空間プラズマの諸現象を理解するための基礎となるプラズマ物理学について解説する

宇宙空間プラズマの諸現象を理解するための基礎となるプラズマ物理学について解説する

主として宇宙・天体プラズマにおける普遍的なプラズマ物理素過程を議論する．特に，磁気リコネクションと無衝突衝撃波についての基礎と，その宇宙・天体現象への具体的な応用について議論する． Elementary physical processes in space and astrophysical plasmas are the major topics of this lecture. In particullar, basics on magnetic reconnection and collisionless shocks will be discussed, including applications to specific space and astrophysical phenomena.