Phoenix Leader Education Programࣇ࢙ࢽࢵࢡࢫ࣮ࣜࢲ࣮⫱ᡂࣉࣟࢢ࣒ࣛ
The 4th International Symposium➨ 4 ᅇᅜ㝿ࢩ࣏ࣥࢪ࣒࢘
"Leadership and Trust in Radiation Disaster"ࠕཎᏊຊ⅏ᐖ࡟࠾ࡅࡿ࣮ࣜࢲ࣮ࢩࢵࣉ࡜ಙ㢗ࠖᗈᓥ኱Ꮫ㛗
Toshimasa ὸཎ฼ṇ
AsaharaPresident of Hiroshima Universityᨺᑕ⥺⅏ᐖ᚟⯆ࢆ᥎㐍ࡍࡿࣇ࢙ࢽࢵࢡࢫ࣮ࣜࢲ࣮⫱ᡂࣉࣟࢢ࣒ࣛ➨ 4 ᅇᅜ㝿ࢩ࣏ࣥࢪ࣒࢘ࢆ
It is mygreat pleasure to open
the 4th International Symposium of the Phoenix Leader௒ᖺࡶ
2 ᪥㛫࡟ࢃࡓࡾ㛤ദࡋ㸪1᪥┠ࡣࣉࣟࢢ࣒ࣛ࡟ᡤᒓࡍࡿ኱Ꮫ㝔⏕ࡢ◊✲࣭Ꮫಟάື࡟㛵ࡍ
Education Program (Hiroshima Initiative) for Renaissance from Radiation Disaster: titledࡿⓎ⾲࡜࣏ࢫࢱ࣮Ⓨ⾲㸪2 ᪥┠ࡣᅜෆእ࠿ࡽᣍ⪸ࡋࡓᑓ㛛ᐙࡢ᪉ࠎ࡟ㅮ₇ࡋ࡚࠸ࡓࡔࡁࡲࡍࠋ
"Leadership and Trust in Radiation Disaster," with distinguished speakers from both Japan andabroad.
 ᨺᑕ⥺ࡢ⏘ᴗ㸪 ་⒪㸪 ࢚ࢿࣝࢠ࣮ศ㔝࡛ࡢ฼⏝ࡀቑຍࡋ㸪 ⚾ࡓࡕࡢᬽࡽࡋ࡟ከ኱࡞ᜠᜨࢆ

ࡶࡓࡽࡍ୍᪉࡛㸪⅏ᐖࢆᘬࡁ㉳ࡇࡍ༴㝤ᛶࡶቑࡋ࡚ࡁࡲࡋࡓࠋᮏࣉࣟࢢ࣒ࣛࡣ㸪ᖹᡂ23 ᖺᗘᩥ
Use of radioactivity
for industries, medicine and energy has been increasing and contributes㒊⛉Ꮫ┬ࠕ༤ኈㄢ⛬ᩍ⫱࣮ࣜࢹ࢕ࣥࢢࣉࣟࢢ࣒ࣛࠖ࡟᥇ᢥࡉࢀ㸪ᖹᡂ24 ᖺ 10 so᭶࠿ࡽࣉࣟࢢ࣒ࣛ
positively in many ways to our lives. On the other hand, as this use increases,
do the risks of a
nuclear disaster. The Phoenix Leader Education Program was adopted as a FY2011 Program forࢆ㛤ጞࡋ࡚࠸ࡲࡍࠋ⚾ࡓࡕࡣ⿕⇿ᆅࣄࣟࢩ࣐ࡢ᚟⯆ࢆᨭ࠼ࡓᗈᓥ኱Ꮫࡢ⤒㦂ࢆࡶ࡜࡟ࠕᖜᗈ࠸Ꮫ
Leading Graduate Schools of the Ministry of Education㸪
Culture㸪 Sports㸪 Science and㝿ⓗ࡞▱㆑ࢆᇶ┙࡜ࡋ࡚ᨺᑕ⥺⅏ᐖ࡟㐺ษ࡟ᑐᛂࡋ㸪᫂☜࡞⌮ᛕࡢࡶ࡜࡛᚟⯆ࢆᣦᑟ࡛ࡁࡿุ᩿

Technology㸪and started in October 2012 with eight students. Based on our decades-longຊ࡜⾜ືຊࢆ᭷ࡋࡓ㸪ᅜ㝿ⓗ࡟ά㌍࡛ࡁࡿࢢ࣮ࣟࣂ࣮ࣝࣜࢲ࣮㸦ࣇ࢙ࢽࢵࢡࢫ࣮ࣜࢲ࣮㸧ࠖࡢ⫱
experience in supporting the recovery of Hiroshima from the a-bombing in 1945, we aim toᡂࢆࡵࡊࡋ࡚࠸ࡲࡍࠋ᫖ᖺ 10 ᭶࡟ࡣ➨ 3 ᮇ⏕ 6 ேࢆ㏄࠼㸪➨㸯ᮇ⏕ 8 ே㸪 ➨ 2 ᮇ⏕ 11 ே࡜ྜdevelop global leaders (Phoenix Leaders) who have the capacity to make sound judgments to takeࢃࡏ࡚
9 ࠿ᅜ
25 ேࡢከᵝ࡞⫼ᬒࢆࡶࡘ኱Ꮫ㝔⏕ࡀ㸪᪥ࠎ◊ࡉࢇࢆ✚ࢇ࡛࠸ࡲࡍࠋ
appropriate
actionsin the face of a radiation disaster. They will be able to lead the recovery witha clear philosophy and innovative knowledge that spans across disciplines. Last October, six newstudents
joined the program,for a total of 25 students representing nine countries and a range of᫖ᖺ 6 ᭶࠿ࡽ㸪Ꮫ⏕௦⾲
4 ேࢆ୰ᚰ࡜ࡋࡓ࣮࣡࢟ࣥࢢࢢ࣮ࣝࣉࢆ⤌⧊ࡋ௻⏬࣭‽ഛࢆࡍࡍࡵࡿ
diverse backgrounds. These students, devoting themselves to their research every day, will also୰࡛㸪ᮏࢩ࣏ࣥࢪ࣒࢘ࡢࠕࢫࢸ࣮ࢡ࣍ࣝࢲ࣮࡜ࡢಙ㢗ࢆ㧗ࡵࡿ࣮ࣜࢲ࣮ࢩࢵࣉࡢᙺ๭࡜ࡣࠖ࡜࠸
report on the outcomes of their efforts and learning activities, in the student presentations.
࠺ࢸ࣮࣐ࡣ⏕ࡲࢀ࡚ࡁࡲࡋࡓࠋ఍ሙࡢⓙᵝࡶྵࡵάⓎ࡞ពぢ஺᥮ࢆᮇᚅࡋ࡚࠸ࡲࡍࠋᮏࢩ࣏ࣥࢪ

࣒࢘ࢆ㏻ࡋ࡚㸪ᨺᑕ⥺࡟ᑐࡍࡿᑓ㛛ᐙࡢ▱ぢࡀከࡃࡢⓙᵝ࡟ඹ᭷ࡉࢀ㸪 ࡲࡓࣇ࢙ࢽࢵࢡࢫ࣮ࣜ
The symposium working group was organized last June and included four students as keyࢲ࣮⫱ᡂࣉࣟࢢ࣒ࣛ࡬ࡢ㛵ᚰ࡜⌮ゎࡀ㧗ࡲࡿࡇ࡜ࢆ㢪ࡗ࡚࠾ࡾࡲࡍࠋ
members, for planning and organizing. The theme, ‘the role of leadership in strengthening trustwith various stakeholders’ was developed thanks to their activities. We expect a lively discussion,
including the floor. I hope this symposium will offer a useful opportunity for you to learn about
the latest findings in the field, as well as to enhance your interest and understanding of the
Phoenix Leader Education Program.

1
2

Phoenix Leader Education Programࣇ࢙ࢽࢵࢡࢫ࣮ࣜࢲ࣮⫱ᡂࣉࣟࢢ࣒ࣛ
The 4th International Symposium➨ 4 ᅇᅜ㝿ࢩ࣏ࣥࢪ࣒࢘
"Leadership and Trust in Radiation Disaster"ࠕཎᏊຊ⅏ᐖ࡟࠾ࡅࡿ࣮ࣜࢲ࣮ࢩࢵࣉ࡜ಙ㢗ࠖᗈᓥ኱Ꮫ㛗
Toshimasa ὸཎ฼ṇ
AsaharaPresident of Hiroshima Universityᨺᑕ⥺⅏ᐖ᚟⯆ࢆ᥎㐍ࡍࡿࣇ࢙ࢽࢵࢡࢫ࣮ࣜࢲ࣮⫱ᡂࣉࣟࢢ࣒ࣛ➨ 4 ᅇᅜ㝿ࢩ࣏ࣥࢪ࣒࢘ࢆ
It is mygreat pleasure to open
the 4th International Symposium of the Phoenix Leader௒ᖺࡶ
2 ᪥㛫࡟ࢃࡓࡾ㛤ദࡋ㸪1᪥┠ࡣࣉࣟࢢ࣒ࣛ࡟ᡤᒓࡍࡿ኱Ꮫ㝔⏕ࡢ◊✲࣭Ꮫಟάື࡟㛵ࡍ
Education Program (Hiroshima Initiative) for Renaissance from Radiation Disaster: titledࡿⓎ⾲࡜࣏ࢫࢱ࣮Ⓨ⾲㸪2 ᪥┠ࡣᅜෆእ࠿ࡽᣍ⪸ࡋࡓᑓ㛛ᐙࡢ᪉ࠎ࡟ㅮ₇ࡋ࡚࠸ࡓࡔࡁࡲࡍࠋ
"Leadership and Trust in Radiation Disaster," with distinguished speakers from both Japan andabroad.
 ᨺᑕ⥺ࡢ⏘ᴗ㸪 ་⒪㸪 ࢚ࢿࣝࢠ࣮ศ㔝࡛ࡢ฼⏝ࡀቑຍࡋ㸪 ⚾ࡓࡕࡢᬽࡽࡋ࡟ከ኱࡞ᜠᜨࢆ

ࡶࡓࡽࡍ୍᪉࡛㸪⅏ᐖࢆᘬࡁ㉳ࡇࡍ༴㝤ᛶࡶቑࡋ࡚ࡁࡲࡋࡓࠋᮏࣉࣟࢢ࣒ࣛࡣ㸪ᖹᡂ23 ᖺᗘᩥ
Use of radioactivity
for industries, medicine and energy has been increasing and contributes㒊⛉Ꮫ┬ࠕ༤ኈㄢ⛬ᩍ⫱࣮ࣜࢹ࢕ࣥࢢࣉࣟࢢ࣒ࣛࠖ࡟᥇ᢥࡉࢀ㸪ᖹᡂ24 ᖺ 10 so᭶࠿ࡽࣉࣟࢢ࣒ࣛ
positively in many ways to our lives. On the other hand, as this use increases,
do the risks of a
nuclear disaster. The Phoenix Leader Education Program was adopted as a FY2011 Program forࢆ㛤ጞࡋ࡚࠸ࡲࡍࠋ⚾ࡓࡕࡣ⿕⇿ᆅࣄࣟࢩ࣐ࡢ᚟⯆ࢆᨭ࠼ࡓᗈᓥ኱Ꮫࡢ⤒㦂ࢆࡶ࡜࡟ࠕᖜᗈ࠸Ꮫ
Leading Graduate Schools of the Ministry of Education㸪
Culture㸪 Sports㸪 Science and㝿ⓗ࡞▱㆑ࢆᇶ┙࡜ࡋ࡚ᨺᑕ⥺⅏ᐖ࡟㐺ษ࡟ᑐᛂࡋ㸪᫂☜࡞⌮ᛕࡢࡶ࡜࡛᚟⯆ࢆᣦᑟ࡛ࡁࡿุ᩿

Technology㸪and started in October 2012 with eight students. Based on our decades-longຊ࡜⾜ືຊࢆ᭷ࡋࡓ㸪ᅜ㝿ⓗ࡟ά㌍࡛ࡁࡿࢢ࣮ࣟࣂ࣮ࣝࣜࢲ࣮㸦ࣇ࢙ࢽࢵࢡࢫ࣮ࣜࢲ࣮㸧ࠖࡢ⫱
experience in supporting the recovery of Hiroshima from the a-bombing in 1945, we aim toᡂࢆࡵࡊࡋ࡚࠸ࡲࡍࠋ᫖ᖺ 10 ᭶࡟ࡣ➨ 3 ᮇ⏕ 6 ேࢆ㏄࠼㸪➨㸯ᮇ⏕ 8 ே㸪 ➨ 2 ᮇ⏕ 11 ே࡜ྜdevelop global leaders (Phoenix Leaders) who have the capacity to make sound judgments to takeࢃࡏ࡚
9 ࠿ᅜ
25 ேࡢከᵝ࡞⫼ᬒࢆࡶࡘ኱Ꮫ㝔⏕ࡀ㸪᪥ࠎ◊ࡉࢇࢆ✚ࢇ࡛࠸ࡲࡍࠋ
appropriate
actionsin the face of a radiation disaster. They will be able to lead the recovery witha clear philosophy and innovative knowledge that spans across disciplines. Last October, six newstudents
joined the program,for a total of 25 students representing nine countries and a range of᫖ᖺ 6 ᭶࠿ࡽ㸪Ꮫ⏕௦⾲
4 ேࢆ୰ᚰ࡜ࡋࡓ࣮࣡࢟ࣥࢢࢢ࣮ࣝࣉࢆ⤌⧊ࡋ௻⏬࣭‽ഛࢆࡍࡍࡵࡿ
diverse backgrounds. These students, devoting themselves to their research every day, will also୰࡛㸪ᮏࢩ࣏ࣥࢪ࣒࢘ࡢࠕࢫࢸ࣮ࢡ࣍ࣝࢲ࣮࡜ࡢಙ㢗ࢆ㧗ࡵࡿ࣮ࣜࢲ࣮ࢩࢵࣉࡢᙺ๭࡜ࡣࠖ࡜࠸
report on the outcomes of their efforts and learning activities, in the student presentations.
࠺ࢸ࣮࣐ࡣ⏕ࡲࢀ࡚ࡁࡲࡋࡓࠋ఍ሙࡢⓙᵝࡶྵࡵάⓎ࡞ពぢ஺᥮ࢆᮇᚅࡋ࡚࠸ࡲࡍࠋᮏࢩ࣏ࣥࢪ

࣒࢘ࢆ㏻ࡋ࡚㸪ᨺᑕ⥺࡟ᑐࡍࡿᑓ㛛ᐙࡢ▱ぢࡀከࡃࡢⓙᵝ࡟ඹ᭷ࡉࢀ㸪 ࡲࡓࣇ࢙ࢽࢵࢡࢫ࣮ࣜ
The symposium working group was organized last June and included four students as keyࢲ࣮⫱ᡂࣉࣟࢢ࣒ࣛ࡬ࡢ㛵ᚰ࡜⌮ゎࡀ㧗ࡲࡿࡇ࡜ࢆ㢪ࡗ࡚࠾ࡾࡲࡍࠋ
members, for planning and organizing. The theme, ‘the role of leadership in strengthening trustwith various stakeholders’ was developed thanks to their activities. We expect a lively discussion,
including the floor. I hope this symposium will offer a useful opportunity for you to learn about
the latest findings in the field, as well as to enhance your interest and understanding of the
Phoenix Leader Education Program.

2
1

Contents

General Information ࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭ 1

Introduction of Phoenix Leader Education Program ࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭ 3

Schedule ࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭ 5

Abstracts of Lectures ࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭ I-1

Abstracts of Students Presentation ࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭ II-1

Abstracts of Poster Presentation ࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭ III-1

Map of Hiroshima City and Symposium Floor ࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭ IV-1

Organization Committee ࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭࣭ V-1

General Information

Date
February 14-15, 2015

Venue
International Conference Center Hiroshima
1-5 Nakajima-cho, Naka-ku, Hiroshima 730-0811, Japan
Phone: +81-82-242-7777

Fax: +81-82-242-8010

Language
English and Japanese

Hosted by
Organization of the Leading Graduate Education Program, Hiroshima University

1

Phoenix Leader Education Program® (Hiroshima Initiative)
for Renaissance from Radiation Disaster
Development of global personnel who manage recovery
from breakdown of people, society,and environment, caused by radiation disaster

This program establishes “Radiation Disaster Recovery Studies” as aninterdisciplinary and practical discipline, based on Hiroshima University’s
experience and achievements in supporting recovery from the atomic bombing. The
program will develop personnel with the skills to “protect human lives fromradiation disasters”, “protect the environment form radioactivity”, and “protect thehuman society from radioactivity”. Graduates from the program will become coreleaders in situations requiring recovery from radiation disasters. The 5-year or
4-year integrated curriculum is designed to develop global leaders (Phoenix
Leader®) who have the judgment and behavioral abilities to take appropriate
actions in circumstances of radiation disaster and lead recovery with a clear
philosophy and innovative knowledge across discipline.

(Ministry of Education, Culture, Sports, Science and Technology – MEXT
“Program for Leading Graduate Schools” accepted for FY2011)3ᨺᑕ⥺⅏ᐖ᚟⯆ࢆ᥎㐍ࡍࡿࣇ࢙ࢽࢵࢡࢫ࣮ࣜࢲ࣮⫱ᡂࣉࣟࢢ࣒ࣛ®

ᨺᑕ⥺⅏ᐖ࡟ࡼࡿே࡜♫఍࡜⎔ቃࡢ◚⥢࠿ࡽࡢ᚟⯆ࢆᢸ࠺ࢢ࣮ࣟࣂࣝேᮦ㣴ᡂᮏࣉࣟࢢ࣒࡛ࣛࡣࠊཎ⇿࠿ࡽࡢ᚟⯆ࢆᨭ࠼ࡓᗈᓥ኱Ꮫࡢᐇ⦼࡜⤒㦂ࢆ⏕࠿ࡋ࡚ࠊศ㔝ᶓ᩿ⓗ࣭ᐇ㊶ⓗᏛၥ㡿ᇦ࡛࠶ࡿࠕᨺᑕ⥺⅏ᐖ᚟⯆Ꮫࠖࢆ☜❧ࡋࠊᨺᑕ⥺⅏ᐖ࠿ࡽࡢ᚟⯆ࡢ᰾࡜࡞ࡿࠕᨺᑕ⥺⅏ᐖ࠿ࡽ⏕࿨ࢆㆤࡿேᮦࠖࠊ
ࠕᨺᑕ⬟࠿ࡽ⎔ቃࢆㆤࡿேᮦࠖ
ࠊࠕᨺᑕ⬟࠿ࡽே࡜♫఍ࢆㆤࡿேᮦࠖࢆ⫱ᡂ
ࡋࡲࡍࠋ5 ᖺࡶࡋࡃࡣ 4 ᖺ୍㈏ࡢᚭᗏࡋࡓேᮦ⫱ᡂ࣒࢝ࣜ࢟ࣗࣛ࡟ࡼࡾࠊ
ᨺᑕ⥺⅏ᐖ࡟㐺ษ࡟ᑐᛂࡋࠊ᫂☜࡞⌮ᛕࡢୗ࡛᚟⯆ࢆᣦᑟ࡛ࡁࡿุ᩿ຊ࡜
⾜ືຊࢆ᭷ࡋࡓࠊᅜ㝿ⓗ࡟ά㌍࡛ࡁࡿࢢ࣮ࣟࣂ࣮ࣝࣜࢲ࣮㸦ࣇ࢙ࢽࢵࢡࢫ
࣮ࣜࢲ࣮®㸧ࢆ⫱ᡂࡋࡲࡍࠋ

㸦ᩥ㒊⛉Ꮫ┬ࠕ༤ኈㄢ⛬ᩍ⫱࣮ࣜࢹ࢕ࣥࢢࣉࣟࢢ࣒ࣛࠖ ᖹᡂ 23 ᖺᗘ᥇ᢥࣉࣟࢢ࣒ࣛ㸧

4

The 4th International Symposium on
Phoenix Leader Education Program (Hiroshima Initiative) for
Renaissance from Radiation DisasterLeadership and Trust in Radiation Disaster
Schedule
Saturday, February 14(Dahlia 1)
13:00-

Opening Ceremony

13:10-

Graduate student presentation I
BreakGraduate student presentation II

16:00-16:15

Break(Dahlia 2)
16:15-18:15

Poster Presentation (Student Research Presentation) (Dahlia 1)
18:30-20:00

Reception

Sunday, February 15(Himawari)
9:45-10:00

Opening Ceremony

10:00-10:40

Dr. May Abdel-Wahab͂Medical Radiation Disasters’
10:40-11:20

Dr. Albert Wiley

͂ Community Hospitals and Local Health Care Providers Can MedicallyManage the Radiation Carcinogenic Risk from Internal Contamination In
Radiological, Mass- Casualty Scenarios by Use of the “CDG”’

5

11:20-11:30

Break

11:30-12:10

Dr. Rethy Chhem͂Trust in Science Leadership Process in Radiation Disaster̓
12:10-13:20

Break

13:20-14:00

Dr. Noboru Takamura

͂Communicating Radiation Risk to the Population of Fukushima’
14:00-14:40

Dr. Jacques Lochard͂Enhancing cooperation between experts and local communities:
the co-expertise process in post-nuclear accident rehabilitation’
14:40-14:50

Break

14:50-15:30

Dr. Kiriko Sakata

͂The role of trust in the necessary leadership for renaissance fromradiation disaster’
15:30-15:40

Break

15:40-16:20

Discussion

16:30-16:45

Award Ceremony, Closing Ceremony

6

Abstracts
LecturesFebruary 15, 2015
10:00-15:0
International Conference Center Hiroshima
Room : HIMAWARI

Medical Radiation Disasters
May Abdel-Wahab

Director of the Division of Human HealthInternational Atomic Energy Agency

Benefits from medical radiation are palpable throughout modern medicine.
Enhancement of diagnostic capability has resulted in better management ofvarious diseases and conditions. This has led to improved medical outcomes.
In addition, therapeutic radiation has had a significant impact on
curability for patients who had definitive or adjuvant radiation for cancer.
In addition medical radiation has led to improvement in quality of life andfreedom from pain and led to a significant impact on quality of life for
palliation of cancer symptoms. The role of radiation in benign disease
management is also noted. Inspite of these successes, the rare instances of
medical radiation errors will be considered, with an emphasis onunderstanding the factors contributing to them, lessons learned and QA
practices or programs that may minimize their occurrence.

I㸫1

[ PROFILE ]May Abdel-Wahab 'LUHFWRU RI WKH 'LYLVLRQ RI +XPDQ +HDOWK,QWHUQDWLRQDO$WRPLF(QHUJ\$JHQF\ 

May Abdel-Wahab, MD, PhD is the current Director of the Division of Human Healthat the International Atomic Energy Agency, Vienna Austria. She has over 30 years ofpatient care, teaching and research experience in the field of radiation medicine. Before
joining IAEA she was section head of GI Radiation Oncology at the Cleveland Clinic,
USA and Professor at the Cleveland Clinic Lerner School of Medicine, Case Western
University. She has served, both as a member and chair, on various National andInternational committees. She has also served on advisory boards and professional
journal editorial boards

She is a fellow of the American board of Radiology and is on

the Best doctors in America listing, among other honors. Dr Abdel-Wahab has been anavid lecturer and participant on scientific panels. She has also served on expert panels
for treatment guidelines and published widely (over 150 publications). She has a special
interest in education and curriculum development as a former residency program
director and has organized numerous symposia and scientific meetings. In addition, she
has an interest in healthcare access and training, as well as novel solutions to address
disparity and diversity issues.

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References
 $UPLWDJH-%ODNHOH\:&RQIHU' 'DQLDN1'LFNHUVRQ:0DFYLWWLH73HVLN1:DVHOHQNR-DQG:LOH\$ ³Medical Management of the Acute Radiation Syndrome:“Recommendations of the Strategic National Stockpile Working Group”$QQDOVRI,QWHUQDO0HGLFLQH   SS  %DLU:-%ORFK:('LFNHUVRQ:((FNHUPDQ.)*RDQV5.DUHP$/HJJHWW5:
/LSVWHLQ-/6WDELQ0*DQG :LOH\$/  ³0DQDJHPHQWRI3HUVRQV,QWHUQDOO\&RQWDPLQDWHG
ZLWK5DGLRQXFOLGHV´+DQGERRN 9RO 1&535(325712   /LYLQJVWRQ*DQG :LOH\$/³0LFURQXFOHDWHG  /\PSKRF\WHVDVD%LRGRVLPHWHU)ROORZLQJ5DGLRQXFOLGH7KHUDS\´7KH0HGLFDO%DVLVIRU5DGLDWLRQ$FFLGHQW
3UHSDUHGQHVV5($&760LDPL6\PSRVLXP3URFHHGLQJV SS 
 :LOH\$/³Some Lessons Learned from Analysis of Severe Internal Contamination
Accidents”LELG7KH0HGLFDO%DVLVIRU5DGLDWLRQ$FFLGHQW3UHSDUHGQHVV5($&760LDPL
6\PSRVLXP SS This document was produced under contract number
DE-AC05-06OR23100 between the U.S. Department of Energy and Oak
Ridge Associated Universities.
The opinions expressed in this paper are those of the author, not the Dept.
of Energy.
The author has no conflict of interest.

I㸫11

Table 1:
Some Useful Medical Countermeasures for Treatment of Internal Contamination with
Fission Products 

Nuclide

MedicationComments

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 &DJOXFRQDWHLY LQKDODWLRQ &RQVLGHUDOJLQDWHV%DVXOSKDWHIRULQJHVWLRQI㸫12[ PROFILE ] $OEHUW㻌 /:LOH\  'LUHFWRU5($&76 
Albert L. Wiley, Jr., BNE, MD, PhD is the Medical and Technical Director at
REAC/TS and Head, WHO Collaborating Center at Oak Ridge. His professional
career began as a Nuclear Engineer with a Bachelor of Nuclear Engineering and an
AEC (ORINS) sponsored fellowship for nuclear engineering graduate studies at
North Carolina State University. He worked in the nuclear industry prior to
obtaining an MD degree from University of Rochester School of Medicine, and latera PhD in Radiological Sciences (radiobiology) from the University of Wisconsin
Graduate School of Letters & Science. He received residency training in Radiation
Therapy & Nuclear Medicine at the University of Wisconsin Medical Center and at
the Stanford University Medical Center in Palo Alto, Calif. He is currently
Professor Emeritus at the Department of Radiology & Human Oncology at the
University of Wisconsin – Madison and was, prior to coming to REAC/TS, professor
and chairman of the Department of Radiation Oncology, and Cancer Center interim
Director at East Carolina University, Greenville, NC. He has over 180 journal, bookand abstract publications in radiation oncology, nuclear medicine, radiobiology andradiation medicine. In recent years he has served as the medical team leader on
NNSA sponsored training and exercises in Iraq, Kuwait, Korea, South Africa,
Morocco, Vienna (IAEA), Argentina, Israel, Mexico, Ukraine, Singapore and Japan.
He is also a retired member of the USN Reserve (retired).
For more curriculum vitae, check the following
website䠖http://orise.orau.gov/reacts/symposium/speakers/Wiley.html

I㸫13

Trust in Science Leadership Process in Radiation
Disaster
Rethy Chhem&DPERGLD'HYHORSPHQW5HVRXUFH,QVWLWXWH CDRI

Public trust in science and technology – particularly the field of nuclear
energy – has historically been fragile because of well-publicized nuclear
accidents, including TMI and Chernobyl. The Fukushima disaster caused
even greater damage to the public’s perception of nuclear energy. Public
mistrust has been compounded by a perceived close relationship between
government and the nuclear industry; this mistrust has also been projected
on to the work of scientists. Building trust between the public and politicalleaders, and reemphasizing the integrity of scientists, is crucial to building
public acceptance of nuclear technology. Therefore, the purpose of my lecture
is to explore the causes and consequences of public mistrust in scientific elitein Japan during and after the Fukushima disaster, and to identify strategies
to overcome this mistrust.
First, I shall provide an overview of the importance of trust in the leadershipprocess, because leadership is not about a person or a position, but a series ofactions taken in order to achieve a particular goal. Second, I shall assess theways in which trust in the science authorities in Japan has deteriorated after
the nuclear accident. Third, I shall present various examples of post-disaster
resilience and recovery to identify successful strategies utilized by science
authorities to regain public trust.
A critical assessment of trust in the leadership process in the context of
nuclear disaster yields important policy implications. Crucially, to overcome
mistrust it is important to build education programs that provide scientists
with skills beyond their technical expertise in radiation medicine, radiation
biology or radiation ecology, which will enable them to forge strongI㸫15

relationships with the public. This requires a major paradigm shift in the
education and training of future scientists built on the precept that science,technology and society are inextricably intertwined. As well as technicalexperts, scientists must also be leaders that serve their community, nationand the world in a time of nuclear crisis.
I shall argue that STS (Science and Technology Studies) is an essential
educational tool to nurture a new generation of trusted future leaders inradiation disaster. The innovative Phoenix Leader Education Program for
Renaissance from Radiation Disaster of Hiroshima University fulfills thispurpose well because of the admission criteria that has been established torecruit the right graduate students. They include:“-Describe the knowledge and skills required for a leader who promotesinterdisciplinary recovery froma radiation disaster-Considering radiation disaster medicine, describe the teamwork andleadership required-Describe the idea of “global-mindedness” as it relates to radiation disastermedicine”[ PROFILE ]  5HWK\.&KKHP ([HFXWLYH'LUHFWRU&'5,'U&KKHPZDVERUQLQ&DPERGLD+HKROGVDPHGLFDOGHJUHHIURPWKH8QLYHUVLW\RI3DULV9,
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I㸫18

62&,(7<0(0%(56+,3
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I㸫19Enhancing cooperation between experts andlocal communities: the co-expertise process inpost-nuclear accident rehabilitation-DFTXHV/RFKDUG
Director NuclearProtectionEvaluationCentre(CEPN)
)RQWHQD\DX[5RVHV)UDQFH
Vice-chairInternationalCommissiononRadiologicalProtection ,&53
The experience of Chernobyl and now from Fukushima shows that developing
the cooperation between experts and local communities is critical to recovery.
Information and scientific explanations are not enough to create confidence and torestore the autonomy of people, which was severely amputated by the sudden irruptionof radioactivity in their immediate environment. It is only through a process of dialogue
between experts and local communities, combined with the characterization of the local
radiological situation and of every individual, conducted together, that it is possible toprogressively develop a radiological protection culture able to give everyone theopportunity to make informed decisions to protect oneself, given the prevailingcircumstances.
This process, called co-expertise, relies on:-

the establishment of places for dialogue allowing experts to listen and to

discuss together with affected people their questions, concerns, challenges, but also
expectations,-an assessment conducted jointly by locals and experts on the situation of thepeople and their community,-

the implementation of actions and projects to address the problems identified

at the individual and the community levels with the support of local professionals,
experts and authorities,-

the evaluation and dissemination of results and good practices.

The lecture will present the main steps of the co-expertise process that allow to develop
the radiological protection cultural among people and thus enable everyone to act wisely
with regard to exposures to radiation of themselves, their families, and theircommunities. This will be illustrated by the experiences of local communities in Belarus
after the Chernobyl accident and in the Fukushima prefecture.

I㸫21[ PROFILE ]Jacques Lochard ('LUHFWRU&(31DQG9LFHFKDLU, ICRP)

Jacques Lochard was educated in Economics at the University of Besançon-France(BS) and Paris-Pantheon-Sorbonne (MS). After 3 years experience as a teacher hejoined the Centre d’étude sur l’Evaluation de la protection dans le domaine
Nucléaire (CEPN) as a research associate in 1977 and became its director in 1989.
CEPN is a non-profit organization, founded in 1976, for research and consulting in
the nuclear energy area in the evaluation of the technical, health economic andsocial dimensions of radiation protection. The objective was to open the discipline tothe social sciences and the emerging concepts of risk assessment and management(http://www.cepn.asso.fr/). His main contribution in radiation protection has been in
the development of methodologies for the implementation of the optimisation
principles. He has published many articles in scientific journals and in theproceedings of international conferences covering both the theoretical and practicalaspects of optimisation. He has been President of the French Society of Radiation
Protection (SFRP) from 1997 to 1999. He is also widely involved in the internationalradiation protection scene. He is the Executive Officer of the International
Radiation Protection Association (IRPA) since 2000. He was the Chairman of theCommittee on Radiation Protection and Public Health (CRPPH) of the OECD
Nuclear Energy Agency from 2005 to 2009. He joined ICRP in 1993 as secretary ofCommittee 3, became a member of Committee 4 in 1997 and it’s Chair in 2009.
For more curriculum vitae, check the following
website䠖http://www.icrp.org/icrp_membership.asp

I㸫22

The role of trust in the necessary leadershipfor renaissance from radiation disaster.LULNR6DNDWD
Graduate School of Integrated Arts andSciences,
Hiroshima University, Hiroshima, 739-8521, JAPANDuring the process of a ‘renaissance’ from a disaster and while coping with thevarious risks, consensus building among stake-holders – the administrators, thescientists, and the local citizens – is often required. Given the backdrop of thesecircumstances, what kind of leadership is necessary to foster collaboration among sucha diverse group? This lecture will focus on this problem by drawing upon research thathas been carried out within the field of social psychological studies on ‘risk
communication’ and ‘leadership’.
Due to the Fukushima nuclear power plant disaster, public trust in both thegovernment and scientists has been greatly eroded. When considering consensus
building and its importance for risk management, "trust" is a keyword. Many social
psychology researchers have examined the role "trust" plays in people’s judgments andsocial acceptance of risk. Trust is comprised of an expectation of “competency" and “goodintention". In other words, for the sender of a message to gain trust, not only arecognized high level of expertise is needed, but also genuine sincerity. For example,
research carried out on one city-planning case indicated that procedural justice, such asproviding citizens with the opportunity to voice their opinions about planning anddevelopment, and giving the local administration time to hear and reflect upon what
was discussed, can lead to improved social acceptance and helps to promote overallcitizens’ trust in the local administration.
Thus far, the majority of leadership studies have focused on top-down influence offormal leaders in hierarchical/single-agency structures. However, disaster prevention
and a ‘renaissance’ from disasters can only be accomplished through the collaboration of
all affected stakeholders including the various levels of administration, private
enterprises, non-profit organizations, local citizens, etc. Therefore, the leadershipI㸫23

required for the ‘renaissance’ from disasters, and the mechanisms needed for copingwith risk must reflect an integrated model. An integrated leadership model fosters
collective action by stakeholders from a range of social sectors, in a coordinated effort
for the common good. Certain studies point out that for integrative leadership to beeffective at building trust, it needs to share information across the disastermanagement network and its leadership.
A ‘renaissance’ from a disaster requires fairness, not power, two-way
communication, not one-way, accurate information sharing, not persuasive statements,
and collaborative leadership that shares power as called for by the circumstances, nevera dictator attempting to micro-manage. In short, healthy consensus building is only
possible when leadership inspires the construction of mutual trust among affectedstakeholders. A goal to which we should endeavor and strive.

[ PROFILE ] Kiriko SAKATA, Ph.D (3URIHVVRUGraduate School of Integrated Arts andSciences,Hiroshima University, JAPAN㸧
Educational Background:1989 M. P. Hiroshima University
1995 Ph.D. Hiroshima University
Major Professional Experiences:
Research Associate, Hiroshima University, 1991-1995
Assistant Professor, Hiroshima University, 1995-2001
Associate Professor, Hiroshima University, 2001-2008
Professor, Hiroshima University, 2009Major Publications:Sugiura,H., Sakata, K., & Shimizu, H. Effects of intergroup and intragroup status on
Social Dominance Orientation (in Japanese ). Japanese Journal of Social
Psychology, 30, 75-85, 2014.
Hayase, R., Sakata, K., & Kohguchi, H. Inter-profession cooperation and patientsatisfaction with medical treatment (in Japanese). Japanese Journal of
Experimental Social Psychology, 52, 104-115, 2012.
Sakata, K. & Fuchigami, K.(Eds) Perspective of Leadership Research in Social
Psychology I (in Japanese), Nakanishiya Shuppan, 2008.
Sakata, K.㸪Gender and leadership effectiveness in the work place㸪In Suzuki, A. (Ed.),
Gender and Career in Japan㸪Melbourne: Trans Pacific Press, 2007, Pp. 58㸫83.
Sakata, K., Fujimoto, K., & Kohguchi, H. Leadership and group membership: Effects ofgroup prototypicality on influences of a leader (in Japanese). Japanese Journal of
Experimental Social Psychology, 44, 109-121, 2005.

I㸫24

Major Activities in Academic Societies;
Standing committee, The Japanese Group Dynamics Association (2010-2012)
Editorial committee, Japanese Association of Industrial/Organizational Psychology(2007-2014)
Academic Awards;
Prize for best article, The Japanese Group Dynamics Association (2004)

I㸫25

Abstracts
Graduate Student
Presentation
February 14, 2015
13:10-16:00
International Conference Center Hiroshima
Room : Dahlia 1

1
The influence of land use and slope position to the declining rate ofradioactivity in Fukushima prefecture
Wim Ikbal Nursal, Toshinori Okuda, Toshihiro Yamada
Graduate School of Integrated Arts and Sciences, Hiroshima University
Keywords
Airborne survey, monitoring, radioactivity, Fukushima
The influence of landscape features such as land use types and terrain characteristics tothe dynamic of radioactivity in large landscape is poorly studied. Mostly studies have been donein patchy places with limited range of environmental gradient. In our study, we examine theinfluence of landscape features as such to the dynamic of radioactivity on the contaminated areasin Fukushima prefecture, by using airborne monitoring of air dose rate data since April 2011 toJune 2012. The airborne monitoring data cover almost all area of Fukushima prefecture. The
study area were chosen on east coast region of the prefecture which has relatively highradioactivity (0.14 μSv/h - 70.1 μSv/h from the first airborne monitoring). Five digital images
were generated from airborne monitoring datasets and then utilized to calculate the average of
decreasing rate of radioactivity. Superimposing air dose intensity data on to the vegetation andterrain data, we analyzed the effect of vegetation types and slope positions. Based on the result,
we found that the vegetation types and slope position significantly influenced the air dose
reduction rate at the 0 - 5 μSv/h radioactivity range. The model's R-squared explained little thevariation of the data (R2 = 12.4%), which implies that the reduction dose rate is highly varied
from place to place. This further implies that any ground level study about the reduction air
dose rate cannot be extended to other places without caution.

II㸫1

2
Functional MRI guided Stereotactic Body Radiotherapy planning using theIntensity Modulated Radiation Therapy technique for liver cancer
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II㸫2

Graduate School of Integrated Arts and Sciences, Hiroshi

3

Mariko Komatsu

Making of the “Citizenship

Making of the “Citizenship
Mariko Komatsu

Graduate School of Integrated Arts and Sciences, Hiroshima University

Recovery and reconstruction from the disaster occurs in various levels, and when considering
the society to be built back better, collective efforts of the citizens are necessary. We may expect
such contribution to come from any member of the society, but it certainly is a choice of eachindividual whether and how much to devote for the public.
Children are often expected to love their hometown and naturally serve as citizens. Current
educational materials and activities ubiquitously plan to lead children so based on suchstraightforward hypothesis to call for their citizenly devotion. However, we need to scrutinize thismodel as it has not been proven so successful.
This presentation will reexamine the concept of “citizenship” and aim to find its relevance for theongoing interviews and future research.

II㸫3

4
Investigation in physical activity and physical fitness of elderly persons
living at temporary housings in a radiation affected area
Nobuaki Moriyama1), Yukio Urabe1), Noriaki Maeda1),
Tomoyoshi Oikawa2), Shuichi Onoda2)
1) Graduate School of Biomedical & Health Sciences, Hiroshima University, Japan 0LQDPLVżPD0XQLFLSDO*HQHUDO+RVSLWDO-DSDQ
Backgroundrecruited

The Great East Japan Earthquake occurredage-matched persons living at their own

on March 11, 2011. These natural events

housings(73.7 s 6.9

caused reactors at the Fukushima Daiichi

recruited as controls. The average daily steps

Nuclear Power Plant to explode.

were measured for seven days using a triaxial

7KH FLW\ RI 0LQDPLVżPD is located inaccelerometer(Suzuken

Fukushima Prefecture, a part of which isrepresentativedata

within a 20-km radius of the power plant.

Grasping power, muscle strength of knee

Following the Fukushima Daiichi nuclear

extension were also measured. Dynamic

GLVDVWHU PDQ\ FLWL]HQV LQ 0LQDPLVżPD ZHUH

balance was evaluated using Timed Up andevacuated from their housings. Evacuees at

Go test (TUG). These data were collected as

temporary

theirrepresentative data of physical fitness. An

physical fitness and amount of physicalindependent t-test was used to compare

activity because they lost their daily duty

measured scales of evacuees with those ofafter the disaster. This is one of serious issues

controls.

housings

maydecreasein

thisstudy, andyears)

ofsixty two
were

Co.,
physical

Ltd.)

also

as

activity.

faced by evacuees, especially elderly persons.
ResultPurposeNumber of steps, grasping power, muscle

The purpose of this study was to evaluate thestrength, and TUG were lower in evacuees

amount of daily physical activity engaged bycompared with those of controls (p<0.05).

elderlypersons

residing

intemporaryKRXVLQJV LQ 0LQDPLVżPD :H K\SRWKHVL]HG

Conclusionthat the amount of physical activity andElderly persons living at temporary housings

physical fitness of elderly persons residing atwere less physically active and they had lesstemporary housings are lower than those ofphysical fitness than those who reside at theirelderly

own housings in the last three years after the

persons

residing

at

their

own

housings.

disaster. Change of their living place due toevacuation and lives at narrow housings may

Methoddecrease amount of their physical activity.

Seventy two elderly persons (74.3 s 12.7

Encouraging

years)

residents could help them remain active until

livingat

temporary

housings

in.DVKLPD ZDUG 0LQDPLVżPD FLW\ ZHUH

exercise

to

these

they can return to their housings.

II㸫4

displaced5
Spatiotemporal variation of Cs-137 concentration in Japanese fir(Abies firma) distribution in secondary forest in Fukushima, Japan
Yurika Oba*1, Kiyoshi Shizuma2, Toshihiro Yamada1, Toshinori Okuda1
1Graduate School of Integrated Arts and Sciences, Hiroshima University
2Graduate School of Engineering, Hiroshima University

Tree leaves, especially evergreen coniferous leaves, are known to accumulate radioactive
materials than other parts of trees. After being absorbed in tree bodies, radioactive materials
stay in different part of trees, leaves, branches, trunks and roots. Then, they tend to move andaccumulate into specific tissues. As a result, the radioactive materials are differently
concentrated within the different part of trees. In other words, there is the heterogeneity ofaccumulation of radioactive materials in an individual tree.
The concentration of radioactive materials among each part of trees is not also homogeneous.
For example, previous studies have reported that the concentration of Cs-137 in current-year
leaves of Norway spruce was higher than old leaves (>1 year) after the Chernobyl accident. Thus,
there is a difference in the radioactive materials concentration among different leaf ages thatmay possibly attributed to the leaf position within a branch or among different strata of branches.
However, factors related to these heterogeneous accumulations of radioactive materials amongleaves have not been well documented.
Focusing on a coniferous tree species, Japanese fir (Abies firma) commonly found in the hillslopes of the coastal region of Fukushima Prefecture, we studied the spatial-temporal
distribution of radioactive materials (Cs-137) contained in this species after the Fukushima
Daiichi Nuclear Power Plant accident.
In this study, we classified leaves as follows; (1) different leaf age groups (current-year leaves,
1st-year leaves, 2nd-year leaves), (2) different position within a tree body (upper part near theshoot apex and lower part). Trees chosen for the study were all in younger stage growing in theunderstory with the size of 1-3m in height. The measurements of Cs-137 in these leaves byGermanium detector showed that of Cs-137 concentration was different with leaf ages. In
addition, the concentration of Cs-137 in leaves sampled from the upper part of a tree was higher
than the lower part. These results imply that the accumulation of Cs-137 in leaves was
influenced by the physiological activity of trees.
Based on these results, we plan to develop the spatiotemporal distribution model of Cs-137
within the tree body of this species with aiming spatial mapping of radioactive materials in aforest community level.

II㸫5

6
One Consideration Concerning Migration Pathway ofRadioactive Materials Caused by Tsushima Current and Soya Current
Yasushi Nabae1) and Satoru Nakashima2)
1) Radioactivity Environmental Protection Course, Phoenix Leader Education
Program for Renaissance from Radiation Disaster, Hiroshima University
2) Natural Science Center for Basic Research and Development, Hiroshima University.H\ZRUGVTsushima Current, Soya Current, 134Cs, Ishikari Bay, Japan Coast Guard, Agano river
1. Introduction
East Japan great earthquake disaster occurred on March 11, 2011, and radioactive materials
were released into the atmosphere and the ocean from TEPCO Fukushima Daiichi Nuclear Power
Plant.

Japan Coast Guard observed 134Cs in Ishikari Bay (Hokkaido prefecture) in 2011 and 2012.

However, there is no study of Migration Pathway of Radioactive Materials to Ishikari Bay.

In thepresent study, we considered migration pathway of radioactive materials from FDNPP to Ishikari
Bay.
2.

MethodWe carried out a reverse trajectory prediction of drifting object using Japan Ocean datacenter

ocean current statistics.

We considered possible radioactive materials migration pathway using aradioactivity surveys of Japan Coast Guard (2006 ࠥ 2012) and a radioactivity surveys (2011 and2012) of Niigata prefecture.

Finally, the plane monitoring result (October, 2011) by MEXT was used

to investigate the distribution of the radioactivity on the land area.
3.

Results and Discussion
The reverse trajectory prediction showed that radioactive materials outflow source was theoffshore of Tohoku and the offshore of Hokuriku.

According to the radioactivity survey by Japan

Coast Guard, 137Cs of 2-3 times higher than the average value was detected in surface seawater ofwest sea area of Hokkaido in 2011.

This result supports the reverse trajectory prediction.

Theradioactivity surveys of Niigata prefecture and the plane monitoring result can be used to confirm
that 134Cs deposited on the earth surface near a prefectural border of Fukushima and Niigata.

Wesupposed that the radioactive materials arrived at the Ishikari Bay by rivers and an ocean current.
However, this is one consideration concerning migration pathway.
evidence.

II㸫6

Therefore we are going to get

7
Spatial heterogeneity of radiocesium concentration
in a forest community in Fukushima
M. Takada, T. Takahara, T. Yamada, T. Okuda

Graduate School of Integrated Arts and Sciences, Hiroshima University
Radioactive fallout caused by the nuclear power plant accident 2011 in Fukushima still
remains in the surface of forest floors. Its distribution is known to be spatially heterogeneous, butlittle is reported about causes generating it. Horizontal distribution of radiocesium within aforest community needs to be clarified for understanding spatio-temporal dynamics ofradiocesium within a forest community and its outflow from the ecosystem to others (e.g.
downstream). Structural variation of above ground vegetation (trees) possibly enhances thespatial heterogeneity of radioactive materials on the forest floor.
Focusing on horizontal distribution of radiocesium on a forest floor within a forest
community, we tested following hypothesis that radiocesium accumulates at the bases of trees.
The field surveys were conducted in a broadleaf and mixed forest dominated by Quercus

crispula and Abies firma in Soma city in Fukushima Prefecture in August and November, 2014. A
20 m × 20 m plot was established in the study site. Top soils (0 – 5 cm) were collected from 121
points in a grid system of every 2 m interval within the plot and additional 136 points from south
DQGQRUWKVLGHVDWEDVHVRIDOOWUHHV FPRIGLDPHWHUVDWEUHDVWKHLJKW LQWKHSORW'LDPHWHUV
at breast height of all the trees were measured, and the tree species were identified. The soil
samples were dried and measured by a germanium detector. Activity concentrations of Cs-137
were decay-correlated to the data of the first field survey (August 2014).
Average concentration of Cs-137 radioactivity in the plot was 14,007 Bq/kg and its coefficientof variance was 74 %, showing large spatial variation of radiocesium distribution on the forest
floor. Average concentration collected in the grid points 2 m apart each other was 10,826 Bq/kg,
while average concentration from the bases of all trees was 16,836 Bq/kg. Concentrations at thetree bases were significantly higher than that those collected in the grid points (Student’s t-test P< 0.001). We found very high radioactive concentration points defied as statistical outlier in the
SUHVHQWVWXG\ PHGLDQYDOXHWLPHVWKHLQWHUTXDUWLOHUDQJH%TNJ :HIRXQG
very high radioactive concentration points in total in the plot. Out of the 25 points, 20 points(80 %) were observed at tree bases in the plot. Any specific tendency such as tree size or species
did not observed at very high radioactive concentration points at the tree bases.
Spatial heterogeneity of radiocesium distribution can be explained to some extent by tree
distribution. High concentration of radiocesium activity at tree bases is probably due to stemflow
water containing radiocesium caught by canopies of trees, but the process may occur by chancebecause the high radioactive concentration points was not affected by tree characteristics.
Radiocesium accumulated at tree bases indicates possibility to up take radiocesium by the treeroots.
II㸫7

8
Identification of factors influencing people’s decision of relocation due toFukushima nuclear accident: Case study in Minami Soma City.
Do Xuan Bien
Department of Geography, Graduate School of Letters, Hiroshima University.
The compound disaster occurred in March 2011 in Fukushima has caused substantial
damages both physically and socially. The spread out of radioactive materials from the explosionof Fukushima Daiichi nuclear plant has led to not only environmental contamination, but also to
the fear of people health and the large scale of evacuation. About 150,000 people have moved
away from their homes to evacuation centers, temporary housing, and relatives’ or friends’ houses.
Geographically, people in the affected areas have evacuated to almost all prefectures around
Japan. This disaster migration amplified the depopulation and the demographic aging in disaster
stricken areas. Human capital is the core as the decisive factor for the recovery process from anuclear disaster. Mankiw (1997) and Zhou (2013) concluded that human capital contributes tothe recovery from disasters more than that of physical capital, particularly in terms of economy.
All the efforts to decontaminate the environment and to restructure the economy and society arefor the better living conditions of the people. In turn, the population plays a crucial role in the
success of the rehabilitation. The proper understanding of population relocation is therefore
important for better planning to revitalize the affected areas. Regardless of this importance, theattention seems mostly paid in investigating psychological effects, changes in people perceptionof nuclear power, human health related to the accident and so on. A research on the trend ofpeople movement and the factors that shape their decision of residing is therefore in thenecessity.
Taking the fact that after the nuclear accident population changes have been observed inmany municipalities in affected areas, together with the importance of human resources inrehabilitation process, this study firstly aims at investigating the current trends of people
mobility among the affected population. Secondly the research also investigates the drivers that
influence the demographic mobility. Among these factors, which one contributes most to people’s
decision of migration and which contributes less will also be examined.
For achieving the research objectives, Minami Soma City is chosen as the research
location because of its representatives in population size, covering of different evacuation zones,
and the large number of evacuees in which many of them still reside outside their original places.
Mailing – questionnaire survey will be used to collect primary information from about 300
evacuees in two main groups: people who have already returned and people who are still living
apart from their original places as before the accident.
The findings from this research can help to answer the question: is there any differenceof what shapes people in making their decision of relocation between a nuclear accident and anatural disaster. These expected results are believed very important for local government inmaking appropriate policy. The possible correlation between variances such as age, gender andoccupation and the decisions of relocation will also be examined. The findings of the factors thatshape population mobility will contribute to the speculation of the changes in population
structure in the future.
Keywords : nuclear disaster, disaster relocation, Minami Soma, disaster migration, disaster social recovery.

II㸫8

9
Individual difference of radiosensitivity evaluated by semi-automatic
cytokinesis-blocked micronucleus (CBMN) assay(NDWHULQD5R\ED6LOYLD1DWVXNR$NXWVX+LURPL<DQDJLKDUD+LURVKL2FKLDL<RVKLNL.XGR6DWRVKL7DVKLUR7DWVXR0L\DPRWR6KLQ\D0DWVXXUD'HSW*HQHWLFVDQG&HOO%LRORJ\5,5%0+LURVKLPD8QLYHUVLW\5HVHDUFK&HQWHUIRUWKH0DWKHPDWLFVRQ&KURPDWLQ/LYH'\QDPLFV+LURVKLPD8QLYHUVLW\
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II㸫9

10
Concentration of Cesium-134 and Cesium-137 in Soil and Rice inFukushima Prefecture
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VMAT multiple divided partial arcs in SBRT
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II㸫11

12
Geographical distribution and radiocesium accumulation in a bryophyte Hyophila
propagulifera, Musci.
Sharifah Nabihah Syed Othman, Okuda, T., Yamada, T., Takahara, T.
(Graduate School of Integrated Arts and Sciences)
Oguri, E., Deguchi, H. (Graduate School of Science)
Endo, S., Shizuma, K. (Graduate School of Engineering)

Even few years after the FNPP (Fukushima Nuclear Power Plant) accident, little is known about thebiological contamination by the fallout of radioactive materials. This is particularly true for the taxonomicallylower living organism, such as mosses, lichens. Focusing on a bryophyte species, Hyophila propagulifera,
Murci that is widely distributed in the Fukushima region, we studied its radiocesium accumulation in relation totheir habitat conditions.

As preliminary study, we collected 14 samples at 3 sampling sites around; Minami soma, and Soma
city (Yokokawa dam, Mano dam area), on December 2013 The radiocesium were measured using
gamma-spectrometry ranged from 2.7kBq/kg to 116.87 kBq/kg for radiocesium134 and from 7.37kBq/kg to304.24 kBq/kg for radiocesium137. The contamination levels usually higher in the slope than the othertopography.

As a part of main studies, we expanded the study area Minami-soma city, Futaba, Namie-Cho and
Iitate village and collected the samples of Hyophila propagulifera from 45 sites within the area mentioned
above in November 2014. During the samplings, we also recorded habitat condition such as substrate type thatthe mosses were attached, slope angle, bearings and wind direction. Almost all the sample sites were locatedeither near the roadside slopes or wall surface of residential area. Radiosecium contamination has not beenmeasured yet, but we soon start to analyze the rediosecium contamination levels of collected mosses in relation
to the distance from FNPP and habitat environments, and ultimately examine its phytoremediation potentials inabsorbing and storing radioactive materials. For further study and survey, we continue the sampling at the same
area (sites) in order to examine chronological variation of contamination level after the FNPP explosion.

II㸫12

13
Estimation of migration velocity of radio cesium in soil at Iitate Village
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14
Doctors and the responsibilities to disaster recovery
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Moreover, the knowledge about this source is not yet understood clearly as this field is still newand needed more evidence as well as research to answer many questions.
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II㸫14

15
Detection of immune suppressive activity in septic patient serum
through DAMPs signals
Ho Minh Van1, Kong Weng Sheng2, Nobuyuki Hirohashi1, Masamoto
Kanno2, Koichi Tanigawa1
1. Department of Emergency and Critical care Medicine, Hiroshima University
2. Department of Immunology, Hiroshima University

Background: Sepsis is a serious medical condition characterized by systemic inflammatory
response syndrome (SIRS) caused by infection. Uncontrolled inflammatory responses to infection
result in the collapse of the cardiovascular function, leading to multiple organ dysfunction
syndrome (MODS) and death. Damage-associated molecular patterns (DAMPs) are danger
signals, which are released during SIRS, and stimulate macrophages to produce interleukine-1
beta (IL-ǃ ZKLFKLVDQLPSRUWDQWPHGLDWRURIWKHLQIODPPDWRU\UHVSRQVH'$03VDUHLQYROYHG
in a variety of cellular activities including cell proliferation, differentiation, and apoptosis.
Purpose: To investigate the immune suppressive activities content on septic patient serum under
DAMPs signals.
Materials and methods: Serum of patients admitted to the ICU of Hiroshima University Hospitalwere taken on admission and analyzed for DAMPs activity at the Immunology department.
DAMPs activity assays used THP-1 derived macrophages, which provide a well characterized
DAMPs-induced secretion model of IL-ǃ7+3-1 cells were treated with PMA for differentiationfor 48hs. Cells were treated with serum of healthy donors, patients, and human serum mixed
with DAMPs molecular (MSU, ATP, etc…) for 12hs. Cell culture medium was collected for
detection of IL-ǃE\(Q]\PH-linked immunosorbent assay (ELISA). After cells were treated for
12hs, cell-viability was examined by staining with Annexin V-FITC and PI via flow cytometry
analysis. Septic patients were separated into two groups for further experiment based on theconcentration of IL-ǃ UHOeased after treatment. Those with values that showed a significant
decrease were defined as suppression sepsis (sepsis (- RUYLFHYHUVD VHSVLV  LQFRPSDULVRQ
with those of healthy donors.
Results: Five healthy donors and twelve septic patient serum samples were used in this study.
The mean concentrations of IL-ǃ LQ KHDOWK\ GRQRUV VHSWLF   DQG VHSWLF -) patients were309.8±41.4, 323.6±61.5, and 170.8±31.8 (pg/mL) respectively. We also measured the concentrationof IL-ǃLQPDFURSKDJHVVWLPXODWHG by Adenosine Tri-phosphate (ATP) in the presence of serum,
ZKLFKZDVSJP/ GRQRU SJP/ VHSVLV  DQGSJP/ VHSVLV(-)). The concentration of IL-ǃSURGXFHGE\0RQRVRGLXP8UDWH 068 VWLPXODWLRQLQWKHVDPH
condition was not difference. Total number of cell death after stimulation also decreases
significant at sepsis (-) groups.
Conclusion: In this experiment, we found a subset of septic patients of which treatment of THP-1
macrophages resulted in significantly lesser production of IL-ǃ WKDQ WKRVH RI KHDOWK\ GRQRUV
These suppression of IL-ǃUHOHDVHGZDVDOVRREVHUYHGLQWKHSUHVHQFHRI'$03PROHFXOHV7KH
results indicate that these patient serum possesses an ability to inhibit inflammatory responses.
The factor underlying this suppression is yet to be defined.
II㸫15

16
Measurement and Decontamination of Radioactive Cesium from Soil in Fukushima
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II㸫16

17
A Day in Fukushima ̽ Doses of Reality and Hope for Recovery
HIRANO Yuji, CHANNARENA Chuon, NGUYEN Quang Tam,
KABIR Russell Sarwar, MATSUMOTO Chika,
AKUTSU Silvia Natsuko (Upper left to lower right in photo)
Hiroshima University
Graduate School of Education; Graduate School of Biomedical and Health Sciences
Graduate School of Social Sciences; Graduate School of Integrated Arts and Sciences
The repercussions of radiation disaster came into increasingly sharper focus on our trip
through Iitate Village, Minamisouma City, and myriad affected towns throughout Fukushima
Prefecture. We caught a glimpse of remaining tsunami destruction at the mouth of the Ota River,ghost town abandonment of property and possessions near Odaka Station, countless black bags
filled with contaminated soil from rice paddies to street corners, and hard-working security
guards policing barricades on the recently-opened, formerly-prohibited exclusion zones of Route 6.
We were regaled with elegant experiments and perceptive presentations by experts, as well asgiven opportunities to take in the atmosphere and appraise the environment firsthand. We cameto a number of conclusions given our collectively diverse background, from the visceral, sobering
reality of infrastructure loss and human capital insufficiency, to the liability of the media incausing harmful stress from fictitious image constructions of Fukushima. These newfoundobservations piqued interests in radiation pathology and psychology, called to question thesalience of certain policy directives under disaster circumstances, and caused us to probe thelimitations of what we can achieve individually in the recovery process. We felt a spectrum of
emotions spanning from surprise at the nature and frequency of fixed dosimeters, tension fromsudden hotspot readings, sympathy for both evacuees and residents of temporary housing
complexes, and simultaneously life-affirming and conflicting existential crises about theunderpinnings of our individual research themes. However, where it mattered most, our day in
Fukushima gave us hope. It strengthened our resolve to make a positive difference in our
research and on the communities we will visit again on a one-week return trip next year. In thispresentation, we impart how our first personal encounter with Fukushima as a field shaped ourresolution to take an active, interdisciplinary role in the recovery process, our perspectives of ourresearch as a whole, and our knowledge of historical antecedents to set the framework for͆radiation disaster recovery studies.͇


II㸫17

Abstracts*UDGXDWH6WXGHQWPoster Presentation

February 14, 2015
16:15-18:15
International Conference Center Hiroshima
Room : Dahlia 2

1

The influence of land use and slope position to the declining rate ofradioactivity in Fukushima prefecture
Wim Ikbal Nursal, Toshinori Okuda, Toshihiro Yamada
Graduate School of Integrated Arts and Sciences, Hiroshima University
Keywords
Airborne survey, monitoring, radioactivity, Fukushima
The influence of landscape features such as land use types and terrain characteristics tothe dynamic of radioactivity in large landscape is poorly studied. Mostly studies have been donein patchy places with limited range of environmental gradient. In our study, we examine theinfluence of landscape features as such to the dynamic of radioactivity on the contaminated areasin Fukushima prefecture, by using airborne monitoring of air dose rate data since April 2011 toJune 2012. The airborne monitoring data cover almost all area of Fukushima prefecture. The
study area were chosen on east coast region of the prefecture which has relatively highradioactivity (0.14 μSv/h - 70.1 μSv/h from the first airborne monitoring). Five digital images
were generated from airborne monitoring datasets and then utilized to calculate the average of
decreasing rate of radioactivity. Superimposing air dose intensity data on to the vegetation andterrain data, we analyzed the effect of vegetation types and slope positions. Based on the result,
we found that the vegetation types and slope position significantly influenced the air dose
reduction rate at the 0 - 5 μSv/h radioactivity range. The model's R-squared explained little thevariation of the data (R2 = 12.4%), which implies that the reduction dose rate is highly varied
from place to place. This further implies that any ground level study about the reduction air
dose rate cannot be extended to other places without caution.

III㸫1

2
Functional MRI guided Stereotactic Body Radiotherapy planning using theIntensity Modulated Radiation Therapy technique for liver cancer
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III㸫2

3



Investigation in physical activity and physical fitness of elderly persons
living at temporary housings in a radiation affected areaNobuaki Moriyama1),
Oikawa2),
Shuichi Onoda2)

Yukio

Urabe1),

Noriaki

Maeda1),

Tomoyoshi

1) Graduate School of Biomedical & Health Sciences, Hiroshima University, Japan 0LQDPLVżPD0XQLFLSDO*HQHUDO+RVSLWDO-DSDQ
Background
The Great East Japan Earthquake
occurred on March 11, 2011. These natural
events caused reactors at the Fukushima
Daiichi Nuclear Power Plant to explode.
7KH FLW\ RI 0LQDPLVżPD LV ORFDWHG LQ
Fukushima Prefecture, a part of which iswithin a 20-km radius of the power plant.
Following the Fukushima Daiichi nuclear
GLVDVWHU PDQ\ FLWL]HQV LQ 0LQDPLVżPDwere evacuated from their housings.
Evacuees at temporary housings may
decrease their physical fitness and amountof physical activity because they lost their
daily duty after the disaster. This is one ofserious issues faced by evacuees, especiallyelderly persons.
PurposeThe purpose of this study was to evaluate
the amount of daily physical activity
engaged by elderly persons residing in
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hypothesized that the amount of physicalactivity and physical fitness of elderly
persons residing at temporary housings arelower than those of elderly persons residing
at their own housings.
MethodSeventy two elderly persons (74.3s12.7
years) living at temporary housings in.DVKLPD ZDUG 0LQDPLVżPD FLW\ ZHUH
recruited in this study, and sixty two

age-matched persons living at their own
housings(73.7 s 6.9 years)
were also
recruited as controls. The average daily
steps were measured for seven days using a
triaxial accelerometer (Suzuken Co., Ltd.)
as representative data of physical activity.
Grasping power, muscle strength of knee
extension were also measured. Dynamicbalance was evaluated using Timed Up and
Go test (TUG). These data were collected as
representative data of physical fitness. An
independent t-test was used to compare
measured scales of evacuees with those ofcontrols.
ResultNumber of steps, grasping power, muscle
strength, and TUG were lower in evacuees
compared with those of controls (p<0.05).
Conclusion
Elderly persons living at temporary
housings were less physically active andthey had less physical fitness than those
who reside at their own housings in the last
three years after the disaster. Change of
their living place due to evacuation andlives at narrow housings may decreaseamountoftheirphysical
activity.
Encouraging exercise to these displaced
residents could help them remain active
until they can return to their housings.

III㸫3

4
One Consideration Concerning Migration Pathway of Radioactive
Materials Caused by Tsushima Current and Soya Current
Yasushi Nabae1) and Satoru Nakashima2)
1) Radioactivity Environmental Protection Course, Phoenix Leader Education
Program for Renaissance from Radiation Disaster, Hiroshima University
2) Natural Science Center for Basic Research and Development, Hiroshima
University

.H\ZRUGVTsushima Current, Soya Current, 134Cs, Ishikari Bay, Japan Coast Guard, Agano river
1. Introduction
East Japan great earthquake disaster occurred on March 11, 2011, and radioactive materials
were released into the atmosphere and the ocean from TEPCO Fukushima Daiichi Nuclear Power
Plant.

Japan Coast Guard observed 134Cs in Ishikari Bay (Hokkaido prefecture) in 2011 and 2012.

However, there is no study of Migration Pathway of Radioactive Materials to Ishikari Bay.

In thepresent study, we considered migration pathway of radioactive materials from FDNPP to Ishikari
Bay.
2.

MethodWe carried out a reverse trajectory prediction of drifting object using Japan Ocean datacenter

ocean current statistics.

We considered possible radioactive materials migration pathway using aradioactivity surveys of Japan Coast Guard (2006 ࠥ 2012) and a radioactivity surveys (2011 and2012) of Niigata prefecture.

Finally, the plane monitoring result (October, 2011) by MEXT was used

to investigate the distribution of the radioactivity on the land area.
3.

Results and Discussion
The reverse trajectory prediction showed that radioactive materials outflow source was theoffshore of Tohoku and the offshore of Hokuriku.

According to the radioactivity survey by Japan

Coast Guard, 137Cs of 2-3 times higher than the average value was detected in surface seawater ofwest sea area of Hokkaido in 2011.

This result supports the reverse trajectory prediction.

Theradioactivity surveys of Niigata prefecture and the plane monitoring result can be used to confirm that
134Cs

deposited on the earth surface near a prefectural border of Fukushima and Niigata.

Wesupposed that the radioactive materials arrived at the Ishikari Bay by rivers and an ocean current.
However, this is one consideration concerning migration pathway.
evidence.

III㸫4

Therefore we are going to get5Radiocesium behavior in different soil layers in deciduous forests inFukushima
M. Takada, T. Takahara, T. Yamada, T. Okuda

Graduate School of Integrated Arts and Sciences, Hiroshima University
Radioactive fallout caused by the Fukushima nuclear power plant (NPP) accident still
remains in neighboring forests. Large amount of the radiocesium is known to have depositedon surface of forest floors such as litter layers soon after the accident, and subsequently
started to migrate into soil layer. The migration process should be clarified for the long-term
prospect of behavior of radiocesium in forest ecosystems and decontamination practices.
In the present study, we focused on downward migration of radiocesium in soil within
forest ecosystem. The objectives of our study are to evaluate temporal change of migration
rates, differences of migration rates between litter layer to soil layer and within soil, anddifferences of migration rates among forest communities. Finally, radiocesium behaviors onforest floors for a long period were prospected by a compartment model.
The field surveys were conducted in Fukushima Prefecture for 16 months from July
2013 to November, 2014. Study sites were placed in six mixed deciduous forests dominatedby Quercus crispula and Abies firma. In each study sites, litter layer, surface soil (0 – 5 cm indepth) and deeper soil (5 – 10 cm) were collected for 5 times (July 2013, December 2013,
March 2014, July 2014, and November 2014) during the field surveys. The samples weredried and measured by a germanium detector. Activity concentrations of Cs-137 weredecay-correlated to the data of the first field survey. To describe the decay-corrected behaviorof Cs-137 in soil, a compartment model was developed for estimating the radiocesium flowfrom litter layer to deeper soil via surface soils, each of which were regarded as“compartment”.
The results showed radiocesium in litter layers had the biggest concentration in July
2013, accounting for 45 – 80 % of the total amount (from litter layer to deeper soil). In
November 2014, approximately 5 % of radiocesium was in litter layer, while 80 % was insurface soil. Total amount of radiocesium did not show large temporal change during the fieldsurvey period. This is probably because that radiocesium in litter layer migrated into soil
layer. Migration rates decelerated gradually with time, but seasonal changes of the
migration rates were not observed. From the results of the compartment model, themigration rates of radiocesium in soil layer were approximately ten times lower than thosefrom litter layer to soil layer. The decrease rates of radiocesium from litter layers did notshow large variation among study sites. Additionally, its decrease rates are almost same as
decomposition rates of carbonyl carbon contained in litter in broadleaf deciduous forests inJapan. Therefore, radiocesium in litter layer is assumed to migrate into soil layer with litter
being decomposed. In contrast to the litter layer, migration rate in soil layer varied among
study sites. With material flow analysis using the compartment model, we estimate morethan half of radiocesium will remain between litter layer and surface soil for 5 years after the
NPP accident, and consequently migrate into deeper soil.

III㸫5

6
Identification of factors influencing people’s decision of relocation due toFukushima nuclear accident: Case study in Minami Soma City.
Do Xuan Bien
Department of Geography, Graduate School of Letters, Hiroshima University.
The compound disaster occurred in March 2011 in Fukushima hascaused substantial damages both physically and socially. The spread out of radioactive materials
from the explosion of Fukushima Daiichi nuclear plant has led to not only environmental
contamination, but also to the fear of people health and the large scale of evacuation. About
150,000 people have moved away from their homes to evacuation centers, temporary housing,and relatives’ or friends’ houses. Geographically, people in the affected areas have evacuated toalmost all prefectures around Japan. This disaster migration amplified the depopulation and thedemographic aging in disaster stricken areas. Human capital is the core as the decisive factor forthe recovery process from a nuclear disaster. Mankiw (1997) and Zhou (2013) concluded thathuman capital contributes to the recovery from disasters more than that of physical capital,
particularly in terms of economy. All the efforts to decontaminate the environment and to
restructure the economy and society are for the better living conditions of the people. In turn, thepopulation plays a crucial role in the success of the rehabilitation. The proper understanding of
population relocation is therefore important for better planning to revitalize the affected areas.
Regardless of this importance, the attention seems mostly paid in investigating psychologicaleffects, changes in people perception of nuclear power, human health related to the accident andso on. A research on the trend of people movement and the factors that shape their decision ofresiding is therefore in the necessity.
Taking the fact that after the nuclear accident population changes have been observed inmany municipalities in affected areas, together with the importance of human resources inrehabilitation process, this study firstly aims at investigating the current trends of people
mobility among the affected population. Secondly the research also investigates the drivers that
influence the demographic mobility. Among these factors, which one contributes most to people’s
decision of migration and which contributes less will also be examined.
For achieving the research objectives, Minami Soma City is chosen as the research
location because of its representatives in population size, covering of different evacuation zones,
and the large number of evacuees in which many of them still reside outside their original places.
Mailing – questionnaire survey will be used to collect primary information from about 300
evacuees in two main groups: people who have already returned and people who are still living
apart from their original places as before the accident.
The findings from this research can help to answer the question: is there any differenceof what shapes people in making their decision of relocation between a nuclear accident and anatural disaster. These expected results are believed very important for local government inmaking appropriate policy. The possible correlation between variances such as age, gender andoccupation and the decisions of relocation will also be examined. The findings of the factors thatshape population mobility will contribute to the speculation of the changes in population
structure in the future.
Keywords : nuclear disaster, disaster relocation, Minami Soma, disaster migration, disaster social recovery.

III㸫6

7



Individual difference of radiosensitivity evaluated by semi-automatic
cytokinesis-blocked micronucleus (CBMN) assay(NDWHULQD5R\ED6LOYLD1DWVXNR$NXWVX+LURPL<DQDJLKDUD+LURVKL2FKLDL<RVKLNL.XGR6DWRVKL7DVKLUR7DWVXR0L\DPRWR6KLQ\D0DWVXXUD'HSW*HQHWLFVDQG&HOO%LRORJ\5,5%0+LURVKLPD8QLYHUVLW\ 5HVHDUFK &HQWHU IRU WKH 0DWKHPDWLFV RQ &KURPDWLQ /LYH '\QDPLFV +LURVKLPD
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VMAT multiple divided partial arcs in SBRT
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10
Geographical distribution and radiocesium accumulation in a bryophyte Hyophila
propagulifera, Musci.
Sharifah Nabihah Syed Othman, Okuda, T., Yamada, T., Takahara, T.
(Graduate School of Integrated Arts and Sciences)
Oguri, E., Deguchi, H. (Graduate School of Science)
Endo, S., Shizuma, K. (Graduate School of Engineering)

Even few years after the FNPP (Fukushima Nuclear Power Plant) accident, little is known about thebiological contamination by the fallout of radioactive materials. This is particularly true for the taxonomicallylower living organism, such as mosses, lichens. Focusing on a bryophyte species, Hyophila propagulifera,
Murci that is widely distributed in the Fukushima region, we studied its radiocesium accumulation in relation totheir habitat conditions.

As preliminary study, we collected 14 samples at 3 sampling sites around; Minami soma, and Soma
city (Yokokawa dam, Mano dam area), on December 2013 The radiocesium were measured using
gamma-spectrometry ranged from 2.7kBq/kg to 116.87 kBq/kg for radiocesium134 and from 7.37kBq/kg to304.24 kBq/kg for radiocesium137. The contamination levels usually higher in the slope than the othertopography.

As a part of main studies, we expanded the study area Minami-soma city, Futaba, Namie-Cho and
Iitate village and collected the samples of Hyophila propagulifera from 45 sites within the area mentioned
above in November 2014. During the samplings, we also recorded habitat condition such as substrate type thatthe mosses were attached, slope angle, bearings and wind direction. Almost all the sample sites were locatedeither near the roadside slopes or wall surface of residential area. Radiosecium contamination has not beenmeasured yet, but we soon start to analyze the rediosecium contamination levels of collected mosses in relation
to the distance from FNPP and habitat environments, and ultimately examine its phytoremediation potentials inabsorbing and storing radioactive materials. For further study and survey, we continue the sampling at the same
area (sites) in order to examine chronological variation of contamination level after the FNPP explosion.

III㸫1011

Estimation of migration velocity of radio cesium in soil at Iitate Village
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FKTN gene expression in gastric cancer of
atomic bomb survivors related to radiation exposure
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13



Detection of immune suppressive activity in septic patient serum through
DAMPs signals
Ho Minh Van1, Kong Weng Sheng2, Nobuyuki Hirohashi1, Masamoto Kanno2,
Koichi Tanigawa1
1. Department of Emergency and Critical care Medicine, Hiroshima University
2. Department of Immunology, Hiroshima University

Background: Sepsis is a serious medical condition characterized by systemic inflammatory
response syndrome (SIRS) caused by infection. Uncontrolled inflammatory responses to infection
result in the collapse of the cardiovascular function, leading to multiple organ dysfunction
syndrome (MODS) and death. Damage-associated molecular patterns (DAMPs) are danger
signals, which are released during SIRS, and stimulate macrophages to produce interleukine-1
beta (IL-ǃ ZKLFKLVDQLPSRUWDnt mediator of the inflammatory response. DAMPs are involvedin a variety of cellular activities including cell proliferation, differentiation, and apoptosis.
Purpose: To investigate the immune suppressive activities content on septic patient serum under
DAMPs signals.
Materials and methods: Serum of patients admitted to the ICU of Hiroshima University Hospitalwere taken on admission and analyzed for DAMPs activity at the Immunology department.
DAMPs activity assays used THP-1 derived macrophages, which provide a well characterized
DAMPs-induced secretion model of IL-ǃ7+3-1 cells were treated with PMA for differentiationfor 48hs. Cells were treated with serum of healthy donors, patients, and human serum mixed
with DAMPs molecular (MSU, ATP, etc…) for 12hs. Cell culture medium was collected for
detection of IL-ǃE\(Q]\PH-linked immunosorbent assay (ELISA). After cells were treated for
12hs, cell-viability was examined by staining with Annexin V-FITC and PI via flow cytometry
analysis. Septic patients were separated into two groups for further experiment based on theconcentration of IL-ǃ UHOHDVHG DIWHU WUHDWPHQW 7KRVH ZLWK YDOXHV WKDW VKRZHG D VLJQLILFDQW
decrease were defined as suppression sepsis (sepsis (-)) or vice versa (sepsis (+)) in comparison
with those of healthy donors.
Results: Five healthy donors and twelve septic patient serum samples were used in this study.
The mean concentrations of IL-ǃ LQ KHDOWK\ GRQRUV VHSWLF   DQG VHSWLF -) patients were309.8±41.4, 323.6±61.5, and 170.8±31.8 (pg/mL) respectively. We also measured the concentrationof IL-ǃLQPDFURSKDJHVVWLPXODWHGE\$GHQRVLQH7UL-phosphate (ATP) in the presence of serum,
which was 397.4±16.3 pg/mL (donor), 360.7±56.2 pg/mL (sepsis (+)) and 186.7±45.0 pg/mL (sepsis(-)). The concentration of IL-ǃSURGXFHGE\ Monosodium Urate (MSU) stimulation in the same
condition was not difference. Total number of cell death after stimulation also decreases
significant at sepsis (-) groups.
Conclusion: In this experiment, we found a subset of septic patients of which treatment of THP-1
macrophages resulted in significantly lesser production of IL-ǃ WKDQ WKRVH RI KHDOWK\ GRQRUV
These suppression of IL-ǃUHOHDVHGZDVDOVRREVHUYHGLQWKHSUHVHQFHRI'$03PROHFXOHV7KH
results indicate that these patient serum possesses an ability to inhibit inflammatory responses.
The factor underlying this suppression is yet to be defined.

III㸫13

14
Alternative Solution for Waste Disposal of Radiation Disaster
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15
Measurement and Decontamination of Radioactive Cesium
from Soil in Fukushima
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III㸫15

16
Effect of Fairness on Acceptance towards High Level Radioactive Waste
Disposal Facilities
Fumie YAMAGUCHI, Kiriko SAKATA, and Hiroshi SHIMIZU
Graduate School of Integrated Arts and Sciences, Hiroshima University

NIMBY (“not in my backyard”) problems have a contradictory nature: even thoughpeople recognize that NIMBY facilities contribute to public interests, they don’t approve of theirconstruction near their homes. The construction of high level radioactive waste (HLW) disposal
facilities is a typical example of a NIMBY issue. The aim of this study is to investigate the effects
of procedural fairness and loss of profits towards satisfaction and consent in group making
decision. We conducted an online scenario-based experiment about consensus building of
HLW disposal facilities and industrial waste disposal facilities (1 = 800). We also
investigated participants’ attitudes towards nuclear power generation and radioactivity inorder to make an exploratory study of specific determinants of nuclear-related facilities. In
addition, we measured participants’ attitudes towards stakeholders, e.g. local and national
governments, in order to carry out an exploratory study of how people view issues about theconstruction of HLW disposal facilities.

Keywords: High level radioactive waste disposal facilities, NIMBY problem, procedural justice,consensus buildingIII㸫16

17

Chromosomal analysis in myelodysplastic syndrome and acute myeloid
leukemia cell lines through the cytokinesis block micronucleous assay(CBMN) and cytogenetic study.
Silvia Natsuko Akutsu ,Ekaterina Royba, Tatsuo Miyamoto, Shinya Matsuura.
Department of Genetics and Cell Biology, RIRBM, Hiroshima University
Keywords: myelodysplastic syndromes, acute myeloid leukemia, cytogenetic, cytokinesis block
micronucleus assay.
Introduction: Myelodysplastic Syndrome (MDS) and Acute Myeloid Leukemia (AML) arehematopoietic disorders characterized by various cytogenetic changes that are closely linked tothe diagnosis. Chromosomal instability is considered one of the mechanisms of carcinogenesis inhematopoietic cells and is caused by the failure in the chromosome maintenance system. When
unrepaired DNA double strand breaks exist during the mitosis, chromosomal fragments form
micronuclei (MN) in a daughter cell. The increased frequency of MN thus is one of the markers ofchromosomal instability. In contrast, the cytogenetic study can provide direct information about
which kind of alterations on chromosomes occur when cells are exposed with ionizing radiations.
Both these methods are useful for the quantitative evaluation of chromosomal instability.
Objective: MOLM-13 (AML cell line) and MDS-LGF (MDS cell line) were irradiated withdifferent doses of gamma radiation, and the chromosomal instability was analyzed through
CBMN assay and cytogenetic study.
Methods: The two cell lines were cultured in RPMI 1640 supplemented with 15% fetal calf serumat 37°C in humidified atmosphere containing 5% CO2. After 24 hours, cell were diluted in newcell culture medium, at 2.5x105 cells/culture, being five cultures of each strain were subjected to ‫ڸ‬-radiation from 137Cs (40 Gammacell Extractor) at different doses (0 Gy, 0.5 Gy, 1.0 Gy , 1.5 Gy
and 2.0 Gy). For CBMN assay, 3 ȣg/ml of cytochalasin B was added into each culture andcultured for 48 hours. For karyotype analysis, PHA was added, and after 48-hour culture, thecells were harvested.
Results: We counted the frequency of micronuclei in 2,000 binucleated cells for CBMN assay, andobserved 100 metaphases for karyotype analysis. The MOLM-13 cell line exposed with 2 Gy of ‫ڸ‬-radiation exhibited higher frequency of MN (6.35%) than MDS-LGF cell line (3.2%). Cytogenetic
study also demonstrated more severe numerical (aneuploidy) and structural chromosome
abnormalities (ring, dicentric, multicentric chromosome, chromosomal gap, chromosomal break,acentric fragments) in MOLM-13 before and after radiation exposure than those in MDS-LGF.
Conclusion: MOLM-13 cell line showed a higher frequency of MN as compared with LGF-MDS
cell line when the level of radiation was more than 1 Gy, consistent with clinical severities.
CBMN assay and cytogenetic study are techniques based on different cellular function but
complementary for evaluating total chromosomal instability.
III㸫17

18
Boshi hinanchu: Correspondence and Sentiment Analyses of Social Media
Texts by Evacuated Mothers from Fukushima (Pilot Study)
KABIR Russell Sarwar
Hiroshima University Graduate School of Education,
Department of Clinical Psychology
Keywords: evacuation stress, affect classification, data mining, text and sentiment analysis,
qualitative study, co-occurrence networks
The effects of prolonged exposure to low-dose radiation on health are still unknown.
However, relative risks are higher in undifferentiated and developing tissues such as those foundin children, infants, and the unborn. Childrearing insecurity from the uncertain prospects ofliving in radiation-affected communities has led to a degree of permanence in the migration
patterns of evacuees, and taken a particularly heavy toll on the well-being of evacuated mothers.
The nature of their migration suggests untreated mental health issues as sustained evacuees inmigrated areas are less likely to have received area support services such as Kokoro no Care andthe attention of the Fukushima Health Management Survey (FHMS). Purported stressors
include fear of child deformities in pregnant women, fear of future cancer risk, loss of financial
restitution, and loss of hometown support systems, among others. Results of the FHMS'
Pregnancy and Birth Survey have shown a decrease in counseling questions by area mothers
related to radiation and a steady increase in the ͆Other͇ free-comment category, suggesting
unknown factors in childrearing anxiety post-radiation disaster. Moreover, the FHMS as a wholeis suffering from participant attrition at an alarming rate. To account for these trends, this pilot
study aims to supplement the FHMS by elucidating a new method for obtaining qualitative dataon evacuated mothers which leverages their presence on social media and utilizes computational
linguistics techniques to analyze their opinions. Through data mining, co-occurrence networks ofwords were found among evacuated mothers (n=8), and a novel text analytical tool known as͆sentiment analysis͇ was conducted on hundreds of their Twitter microblogs available to the
public. The results are forthcoming.

III㸫1819

Impacts of the natural and human induced disasteron the domesticated animals
Chika Matsumoto, Toshinori Okuda, Kiriko Sakata, Toshihiro Yamada
Graduate School of Integrated Arts and Sciences Hiroshima University

When large scale disaster happened, not only human beings but also domesticated animals
suffered seriously. The Great East Japan Earthquake accompanied by FNPP (Fukushima
Nuclear Power Plant) accident caused large number of domesticated animals missed or left
behind without food supply. Similar incidents could be seen elsewhere where local communityand people suffered from natural disaster followed by heavy storms and landslides (e.g. in theoutskirts of Hiroshima city in 2014). The negative feeling derived from guilty complex leaving theanimal without care causes further psychological and social instability of evacuated residents.
The sequential chains of physical and social damages upon the local community are due to thepoor network and supporting system that could have been pre-established by administrative
procedure (e.g. establishment of shelter for the missed/ accompanied animals, tracing backnetwork of missing animals).
We hypothesize that these readiness / establishment of the supporting systems for animalcare is a reflection of sociological maturity that can always pay attention to the vulnerable groups
of a society. We examine this hypothesis with focusing on the readiness of the animal care by the
local administration offices and networks. Under this hypothesis, we address the questions
whether the local administrations offices in the disaster area have established any tracing backsystem for missing animals, food supply networks for the abandoned animals, or provision of
sheltering space for missed or accompanied animals (e.g. companion animals rescued with local
residents).
As a first step among these, we started preliminary study on the case of landslide disaster
happened in August Hiroshima, 2014. We interviewed on officers at Animal Control Center ofHiroshima City Office, inquiring how the office encountered the problem for the provision of
sheltering space for companion animals, and found that they practiced a project with NGO forestablishment of sheltering space for domesticated animals accompanied by the evacuatedpeoples
For Future study, we are planning to extend the focal area to Fukushima and other disastersites with the questions whether any similarity/ dissimilarity of animal care exists among thesites from the view points of the type of disaster (natural / human induced, periodicity of disasteror magnitude of disaster).

III㸫1920
Historical Implication of Special Student from Southeast Asia (Nanpo
Tokubetsu Ryugakusei) who Survived the Atomic Bombing of Hiroshima
Yuji Hirano
Graduate School of Letters, Hiroshima University
Keywords: Atomic Bombing in Hiroshima, Special Students from Southeast Asia, Hiroshima
University of Literature and Sciences, International Students InstituteSoutheast Asian Students in Hiroshima in 1945:
During the Second World War, Southeast Asian students from the occupied areas were invited by
the Japanese government in the framework of the "Nanpo Tokubetsu Ryugakusei" inviting
program. About 200 young people came to Japan in two phases in 1943 and 1944. After theirarrival, they received Japanese language education at the International Students Institute inTokyo. Then they were sent to different higher education institutes all over the country.
Hiroshima Higher Normal School and the Hiroshima University of Literature and Science were
important host universities for Special Southeast Asian Students. In 1944, 20 students entered
Hiroshima Higher Normal School and in 1945, 9 students entered Hiroshima University of
Literature and Science (4 of whom transferred from Hiroshima Higher Normal School).
Special Southeast Asian Students and Atomic Bombing in Hiroshima:
When the atomic bomb was dropped on Hiroshima, nine Southeast Asian students were enrolled
at Hiroshima University of Literature and Science. Two of them died, but 7 of them miraculously
escaped death. Although they had been exposed to radiation themselves, they did their best to
help the citizens of Hiroshima. After going back to their countries, they conveyed the experienceof being witness to the horrors of the atomic bomb and contributed extensively to thedevelopment of peace activities. Their work was considered as realization of Hiroshima
University’s principle of the “Pursuit of Peace”. For these reasons HU decided to award 3 of thesurviving former students from Southeast Asia (as of December 2012) with honorary doctorate
degrees.
Future Research:
I would like to do my research on (1) historical implication of "Nanpo Tokubetsu Ryugakusei"
inviting program, (2) the real situation of Special Student from Southeast Asia who survived theatomic bombing of Hiroshima. I am now collecting the related historical records and documents
as well as interviewing with former Nanpo Tokubetsu Ryugakusei, former staff members ofInternational Students Institute and Japan alumni associations in Southeast Asian countries.
III㸫20Map
Rf

Hiroshima City
and

Symposium Venue

Map of Hiroshima central part

ձ㻌

մ㻌

ճ㻌
N㻌

ղ㻌

ձ JR Hiroshima Station
ղ International Conference Center Hiroshima㸦This symposium venue㸧ճ Hiroshima Peace Memorial Museum
մ Peace Memorial ParkIV㸫1

International Conference Center Hiroshima
Floor Guide of second basement (B2F)

Himawari㻌

Dahlia1㻌

Dahlia2㻌

Cosmos2㻌 Cosmos1㻌

Speaker waiting㻌room㻌

Dahlia1 (2/14)㻌

Himawari (2/15)

࣭Students 㻌࣭Opening Ceremony㻌Presentation㻌
࣭Reception

࣭Lectures㻌

Dahlia2 (2/14)㻌

 Closing Ceremony㻌Administration office 㻌
and Cloakroom㻌
IV㸫2

࣭Poster Presentation㻌

࣭Award Ceremony,  Organizing Committee

Director, Organization of the Leading Graduate Education Program
Toshimasa Asahara (President, Hiroshima University)
Program Director, Phoenix Leader Education Program (Hiroshima Initiative) for
Renaissance from Radiation Disaster
Tetsuji Okamoto (Executive and Vice President, Hiroshima University)
International Exchange Committee
Koichi Tanigawa, Chairman of Committee(Professor, Graduate School of Biomedical & Health Sciences, Hiroshima University)

Shoken Miyama, Chairman of International Symposium Working Group(Research Professor, Office of the President, Hiroshima University)

Satoshi Tashiro(Professor, Research Institute for Radiation Biology and Medicine,
Hiroshima University)

Yasumasa Ohtsuka(Associate Professor, Graduate School of Education, Hiroshima University)

Hironori Deguchi(Professor (Special Appointment), Graduate School of Science, Hiroshima University)

Shuji Takahashi(Associate Professor (Special Appointment), Graduate School of Science,
Hiroshima University)V㸫1