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Introduction of Graduates (Master program)

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John Robert Carabeo Medina

Country Philippines
Qualification * Doctor of Medicine (Pamantasan ng Lungsod ng Maynila/ University fo the City of Manila - College of Medicine)
* Licensed Medical Technologist/ Clinical Laboratory Scientist
* Certificate of Eligibility issued by the Civil Service Commission of the Philippines
* Bachelor of Science in Public Health (University of the Philippines Manila - College of Public Health)
Hobby Listening to music (RnB, Soul, Pop, Classical); Singing; Cooking; Reading novels, short stories, and poems; Watching plays, movies, and US and K-drama series; Visiting shrines and temples; Weightlifting; Jogging; Yoga; Food tripping; Restaurant hopping
Visited Countries Taiwan
Interests * Spatial Epidemiology
* Application of Geographic Information System (GIS) and Remote Sensing Technology in Global Health  Research
* Epidemiology, Prevention, and Control of Communicable and Non-Communicable Diseases
* Questionnaire Development and Validation
* Biostatistics and Data Science
* Understanding Health and Health Seeking Behavior of Humans
* School Health
* Curriculum Development for the Sciences and Health Education of Basic and Higher Education
* Theoretical and Applied Linguistics 
* Asian History, Philosphy, Politics, Culture, Arts, and Tradition
* Comparative Religion and Mysticism

Personal History

Sep. 2019: Msc, Graduate School of Health Sciences, University of the Ryukyus
Jan. 2020-: Assistant Professor, College of Public Health, University of the Philippines

After obtaining the license to practice as a clinical laboratory scientist, I worked as a research assistant for the Neglected Tropical Diseases Study Group of the UP Manila - National Institutes of Health under the supervision and mentorship of Dr. Vicente "Jun" Y. Belizario, Jr., who is a former Undersecretary of the Department of Health. Our research projects focused on the epidemiology, prevention and control of soil-transmitted helminths and schistosomiasis among school children. Aside from performing parasitologic diagnosis in the laboratory, I was trained in operating and managing research projects during my stay in the study group. Also, through Dr. Belizario's guidance, we were able to publish in a local Scopus-indexed journal.

A year after, I decided to take the path of a medical doctor. Despite our family's financial restricitions, I was able to attend and finish medical school through the personal scholarship grant of one of my life mentor and a very good friend, Dr. Ferdinal M. Fernando, who is currently the Asst. Director and Head of the Health Division of ASEAN.

While I was attending medical school, I kept myself involved in doing research activities such as field enumeration, event organizing,  data analysis, and technical writing. I had been involved in some projects of Prof. Ernesto "Jun" R. Gregorio, Jr., to whom I owe much of my learnings in health promotion and health education. Under his mentorship, we were able to published articles about the factors influencing women's choice of delivering in health facilities in a local Scopus-indexed journal.

In 2016, after graduating from medical school, I returned to the office of Prof. Gregorio as a research associate for an on-going project regarding the knowledge, attitudes, and practices of school teachers on Zika virus, transmission, control, and prevention. It was through this project that I had been introduced to Dr. Jun Kobyashi, who is now my mentor here at the Ryudai. We also had a publication in an international Scopus-indexed journal regarding the knowledge, attitudes, and practices of seafarers on cardiovascular diseases.


I want to be a living testimony of Ryudai's commitment in producing globally competitive graduates. I will venture on doing researches that will be tranlated into policy or that will be useful for public health decision-making. Throught the guidance of my Senseis', I will do my best to attain this goal. As a MEXT Scholar, I am expressing my commitment to maintain the ties between Japan and the Philippines. While I am here in Ryudai, I'll see to it that I'll live life to the fullest based on my ikigai. I'll immersed with the people and learn from them their language, arts, and culture.                                                 


Erina Ishibashi

Country Naha City, Okinawa Prefecture, Japan
Degree Hospital nurse and public health nurse
Hobbies Baking cakes and bread, and taking a nap with my child
Countries visited Hawaii, Thailand, etc.
Other areas of interest Health policy, prevention, childrearing and society

Personal History

After graduating from the Okinawa Prefectural College of Nursing, I worked at St. Luke’s International Hospital. Following my husband’s transfer to Okinawa, I moved here and entered graduate school, which I had previously been interested in pursuing. 2017 Master of Health Sciences. 2017- Naha city health center, PH Nurse.


With the support of people around me, I’m raising my child and pursuing research. The department has instructors who provide rigorous and appropriate guidance as well as students with whom you can learn. Although students’ research fields differ, these differences broaden your perspective and enhance learning. Also, there are many opportunities to attend lectures given by people who are active around the world, which enables you to learn many things just by being in Okinawa.


Masashi Azuma

Country Okinawa
Degree Hospital nurse and public health nurse
Hobbies Anything to be active, music, photography, travel and engaging with people
Countries visited China, Thailand, Laos, Vietnam, India, New Zealand and Madagascar
Other areas of interest Global health, rural health, preventive medicine and health policy



Personal History

After graduating from the Okinawa Prefectural College of Nursing in 2009, I work for two years in the cardiovascular internal medicine ward and three years in the HCU at the National Center for Global Health and Medicine. Beginning in 2014, I worked for one year as a public health nurse at the Okinawa City Office. Based on my experiences working in both clinical medicine and community medicine, I wanted to study global health, a field which I had been interested in, so, in April 2015, I entered the Department of Global Health in the University of the Ryukyus Graduate School. 2017 Master of Health Sciences. 2018 JOCV to PNG


I just entered the master’s program this year. In the future, I plan to use my experiences as a hospital nurse and public health nurse to serve in the field of global health. Although I’m still young and don’t have any overseas experience yet, I am enjoying my studies with the support of wonderful instructors and colleagues in the Department. Every day is exciting as I discover the prospects of a new world.


Midori Mbaitiga

Country Oita Prefecture, Japan
Degree Hospital nurse and midwife
Hobbies Manual work, farm work and walks
Countries visited Vietnam, Hong Kong, France, Monaco, Italy, United States, New Zealand, Ivory Coast and Niger
Other areas of interest Poverty, education

Personal History

After obtaining my midwife license at the School of Health Science Kyushu University, I worked at Oita University Hospital. After that, I served for three years as a nurse and midwife volunteer for JOCV in Ivory Coast and then another three years as a polio eradication group leader for JICA in Niger. After I married, I underwent three months of training on tropical medicine at the Institute of Tropical Medicine at Nagasaki University. After giving birth to my child, I anguished over my desire to study global health while being baffled by childrearing until I saw the department’s homepage, applied and here I am. 2017 Master of Health Sciences, 2017- PH Nurse at Nago city, Okinawa.


There are many things that I want to try to do in this world! As a result of my choices about what I wanted to do and what I could do, I have ended up here. Although there are many things that perplex me, I always want to be curious and not limit myself.


Chika Sato

Country Miyagi Prefecture, Japan
Degree Hospital nurse
Hobbies Comedies and music
Countries visited Philippines, Korea, Italy, Taiwan, Bhutan and Thailand
Other areas of interest Health education, school health and lifestyle-related illnesses

Personal History

Graduated from nursing school in 2010.
Worked at a hospital from 2010 to 2014.
Entered the master’s program at the University of the Ryukyus


Hello everyone, I’m Megumi Sato and I entered the Department of Global Health this year. I have experience working as a nurse in a hospital ward that treats lifestyle-related illnesses, particularly diabetes, and I am interested in health education.