理学研究科　科学教育特論　公開講座

• 日時：2月18日（水）13 : 40 - 14 : 50, 15 : 00 - 16:10
  Date & Time : Wedensday, February 18, 15 : 00 - 16:10, 15 : 00 - 16:10
• 場所：理学館 N-203
  Place : N-203, Science Hall
• 講師：風間　晴子 教授（国際基督教大学）
  Speaker : Professor KAZAMA, Haruko (ICU)
• 講演題目：科学教育におけるリベラルアートの意義-有馬朗人先生の科学教育論への応答
  Title : The Inportance of Liberal Arts in a Science Education Program

• 皆様のご来聴をお待ちします．
  Every NS staff and students is welcome

Open Lecture/Department of Physics

• Date: June 24 (Mom), 12:30 - 13:30

• Place: Rm. N-203, Science Hall

• Title: Looking at the Nuclear & Nucleon structure

• Speaker: R.G.T. Zegers, Research Center For Nuclear Physics, Osaka University

• Abstract: With the advent of particle accelerators with increasing energetic beams in the lamer half of the 20th century, it has become possible to study in detail the building blocks of matter: the nucleus, nucleon and quarks. Since the energy relates directly to the scale at which we can '1ook' at the structure of matter, a vast but varied array of accelerators in the world is employed to increase our understanding. At the Research Center for Nuclear Physics at Osaka University, particle beams of a few 100 MeV are available. At these energies, one can study in detail the properties of nuclear matter.One Interesting Subject is the excitation Of a nucleus as a whole; the so-called ,giant resonances'. Although these have been under investigation for a long period of time already, application of new techniques still reveals valuable additional information. In a recent experiment at RCNP, first unambigeous evidence for the so-called isovector giant spin-nip monopole resonance was found. The experiment provides a good example of what can be achieved in this line of research and of the methods employed.
   RCNP also operates one of the beam lines at the SPring-8 facility near Himeji. At this beam line, photons of 1.5-2.4 GeV are used to investigate the nucleon structure. Similar to the nucleus, the nucleon can be excited. Advanced ,quark, model exist to explain these excitations. However, they predict a much richer spectrum than is actually seen in experiments. One explanantion for this is that, so far, researchers have not been looking at the right place; different reactions should be studied and especially different observables should be measured. The photon beam at SPring-8 is strongly polarized and this enables to look in previously uncharted areas. In the presentation, these two lines of research will be introduced.

For further information, please contact Prof. Greenfield (green@icu.ac.jp), Department of Physics, ext. 3250

物理学教室主催セミナー

• 日時：5月30日（木）16:00 - 18:00
  Time:May 30 (Thu), 16:00 - 18:00

• 場所: 理学館 N-231
  Place : Room N-231, Science Hall

• タイトル：「地球の気候システムと炭素循環：過去，現在，そして未来」
  Tirle : "The Earth's climate system and the carbon cycle: past, present, and future"

• 講師：伊藤　貴充 氏（ICU98卒・物理）大気海洋気候プログラム，マサチューセッツ工科大学博士課程
  Speaker : Mr. Ito Takamitsu (Dept. of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology)

• 講演要旨：近年急速に発展している大気海洋の観測，理論，そして数値計算の学際的研究によって地球の気候システムと物質循環とは幅広い時間的スケールで，密接に関わっていることが明らかになりつつある．それではどのようなプロセスが気候と物質循環を結び付けているのだろうか．どのような過程で過去，大気中の二酸化炭素濃度は変動してきたのか．このまま我々が二酸化炭素を排出し続けるとどのような結果をもたらすのか．これらは完全には理解されていない問題である．この分野での中心的な理論と概念を紹介しながら，現在私の研究課題である南極海による人為起源物質の吸収の問題について論じてみたい．

• Abstract : Recent interdisciplinary developments in observational, theoretical, and numerical studies in meteorology and oceanography have revealed that the Earth's climate system and the biogeochemistry are closely connected on the wide range of timescales. What are the processes that connect the climate and biogeochemistry ? What could have caused the past variation of climate and atmospheric CO₂ ? What will happen to the present climate system as we continue the emission of CO₂ into the atmosphere ? These questions are not fully understood and are the subject of intensive research. I hope to discuss key concepts in this field and introduce my current research project on the role of the Southern Ocean in the uptake of anthropogenic trace gases.

レクチャー1時間，懇談1時間を予定しています．物理学教室主催ですが，環境問題やアメリカの大学院に興味のある方など，どなたでもご参加ください．