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Phoebe Wall

Extension Associate III

location Office Location: Agriculture & Life Sciences Bldg., Room 105D
Mailing Address: UOG Station, Mangilao, Guam 96923
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Professor of Public Administration

location Office Location: SBPA 135
Mailing Address: UOG Station, Mangilao, Guam 96923
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Ansito Walter is Associate Professor of Public Administration in the School of Business and Public Administration at the University of Guam. Dr. Walter teaches courses in Public Administration, Policy, Planning & Development, and other public administration-related courses in the university’s Master of Public Administration and Public Administration and Legal Studies program. He serves as graduate faculty member in the University of Guam/University of Alaska’s Joint Doctoral program.

Dr. Walter holds a B.A. from Florida Atlantic University in Boca Raton, Florida, an M.A. and a PhD from United States International University in San Diego, California. He has participated in various regional and community outreach related projects toward helping underserved, economically disadvantaged Micronesians to become productive/contributing members of society. Dr. Walter served on various regional boards and commissions and as two term Governor of the State of Chuuk, Federated States of Micronesia.

Dr. Walter is active in educating the underserved Micronesian community about the benefits of education and hard work as key to eradicate extreme poverty and become successful productive/contributing members of the 21st Global economy.


  • B.A., Social Psychology, Florida Atlantic University
  • M.A., Human Behavior, U.S. International University (Calif.)
  • Ph.D., Leadership and Human Behavior, U.S. International University (Calif.)
John Washburn II

Assistant Professor of Military Science and MS Instructor

location Office Location: ROTC 205
Mailing Address: UOG Station, Mangilao, Guam 96923
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Staff Sgt. John Washburn II was born in Heidelberg, Germany, and graduated from Waynesville Senior High School in Waynesville, Mo., in 2006. In 2006 he joined the U.S. Army and attended One Station Unit Training at Fort Leonard Wood, Mo.

Following completion of One Station Unit Training with Company G, 795th Military Police Battalion, he was awarded the military occupational specialty of Military Police Officer. He served in assignments overseas and stateside including the 401stth Military Police Company, Fort Hood, Texas; 127th Military Police Company, Fort Carson Colorado; 118th Military Police Company (Airborne), Fort Bragg, NC; Area Support Group-Qatar, Camp As Sayliyah, Doha, Qatar; 58 Military Police Company, Schofield Barracks, HI; and University of Guam, Mangilao, Guam. His duty positions include gunner, driver, team leader, squad leader, and military science instructor.

Washburn’s formal military training consists of Warrior Leadership Course, Advanced Leadership Course, Air Assault, Combatives Level 1, Combatives Level 2, Master Army Combatives Program, Combat Life Savers Course, JCR Operators Course, HAZMAT, Bus Drivers Course, Master Resiliency Trainer Level 1, Rappel Master, and Common Faculty Development Instructors Course.

Washburn’s awards and decorations include the Army Commendation Medal (3 OLC), the Army Achievement Medal (1 OLC), the Military Outstanding Volunteer Service Medal, the Army Good Conduct Medal (3rd award), National Defense Service Medal, the Global War on Terrorism Service Medal, the Global War on Terrorism Expeditionary Service Medal, the NCO Professional Development Ribbon (Numeral 2), the Army Service Ribbon, the Overseas Service Ribbon (3), the Combat Action Badge and the Air Assault Badge.

 Yuming Wen, Ph.D.

Associate Professor of GIS

location Office Location: WERI 111
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.S., Surveying, Shandong University of Science and Technology (China)
  • M.S., Engineering Surveying, Southwest Jiaotong University (China)
  • Ph.D., Environmental Sciences, University of Rhode Island
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Training Associate

location Office Location: Dean's Circle, House #18
Mailing Address: UOG Station, Mangilao, Guam 96923
Greg Wiecko, Ph.D.

Professor of Turf Science Management

location Office Location: Dean's Circle, House #34
Mailing Address: UOG Station, Mangilao, Guam 96923
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Research interests

  • Turf management in tropical climates
  • Utilization of green roofs for conserving energy
  • Green roofs for growing plants for consumption
  • Delivering acquired knowledge to end-users such as turf managers, homeowners and the general public.


  • M.S., Soil Biochemistry, University in Bydgoszcz (Poland)
  • Ph.D., Agronomy/Turf Science, University of Georgia

Selected publications

  • Wiecko, G. 2018. Not only green but sustainable living roofs for Guam. HortScience 53: Supplement ASHA Annual Conference.
  • Wiecko, G. 2016. Green roofs in the tropics conserve energy. The Open Atmospheric Science Journal 10: 1-5.
  • Wiecko, G. 2016. Educational needs of turf and landscape industry workforce in Reno-Sparks Metropolitan area. HortScience 51: Supplement ASHA Annual Conference.
  • Wiecko, G. 2015. Green roofs on Guam–how vegetation survives typhoons. HortScience 50: Supplement ASHA Annual Conference.
  • Wiecko, G. 2014. Roof vegetation cuts energy costs on Guam. HortScience 49: Supplement ASHA Annual Conference.
  • Wiecko, G. 2014. Roof vegetation makes residential houses cooler and more energy efficient. ASA Abstracts, Madison WI.


 Randall V. Wiegand, MBA CFE, CGFM, CPA

Vice President, Administration & Finance / Chief Business Officer

location Office Location: Executive Offices, SBPA 256
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.A., Business Finance, Seattle Pacific University (Wash.)
  • MBA – Finance and International Business, University of Washington
  • Certified Public Accountant 
  • Certified Fraud Examiner
  • Certified Government Financial Manager
  • Chartered Global Management Accountant
  • Accredited Investment Fiduciary
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Junior Web Developer

location Office Location: Computer Center Building
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.S., Computer Science, Bob Jones University
    Greenville, South Carolina
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Research Assistant II

location Office Location: Marine Lab, Rm. 204 A
Mailing Address: UOG Station, Mangilao, Guam 96923
Bulan Wu, Ph.D.

Assistant Professor of Chemistry

location Office Location: ALS 303
Mailing Address: UOG Station, Mangilao, Guam 96923


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Dr. Bulan Wu received a masters in Organic Chemistry from Shanxi University, China in 2005 and a Ph.D. in Organic Chemistry from West Virginia University in

Wu’s expertise is in the field of synthetic organic chemistry, carbohydrate chemistry and medicinal chemistry.

Her research interests are in the area of novel synthetic methodology development and synthesis of biologically active small molecules with potential application in medicinal chemistry (anticancer, antibacterial and antiviral) as well as SAR studies.


Wu’s hobbies include cooking, Zumba, yoga, hiking, boating, traveling, watching movies, and playing cards.


  • B.S., Chemistry, Shanxi University (China)
  • M.S., Organic Chemistry, Shanxi University (China)
  • Ph.D., Organic Chemistry, West Virginia University
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