Resume

• 2010

  Sam

  O'Hanlon

  University of Hawaii at Manoa

  Oregon State University

  Dakota State University

  Honolulu

  HI

  Honolulu

  HI

  University of Hawaii at Manoa

  Dakota State University

  Oregon State University

  Corvallis

  Oregon

  Adjunct Instructor

  Honolulu

  HI

  Graduate Assistant

  University of Hawaii at Manoa

  Member

  The Alliance

  Master of Arts (M.A.)

  Cognitive Psychology

  University of Hawaii at Manoa

  Doctor of Philosophy (PhD)

  Cognitive Psychology

  University of Hawaii at Manoa

  Workshop: Actively Engaging Students in an Online Course

• 2004

  Bachelor of Science (BS)

  Biopsychology

  University of California

  Santa Barbara

• 2000

  High school diploma

  Honors

  Punahou School

• University Teaching

  Cognitive Psychology

  Online Teaching

  Scientific Writing

  Data Analysis

  The heterocyst regulatory protein HetP and its homologs modulate heterocyst commitment in Anabaena sp. strain PCC 7120

  Terminal commitment of differentiating cells is fundamental to multicellular life but remains the least characterized phase of development. Using Anabaena

  a multicellular cyanobacterium that irreversibly commits 10% of cells to specialized nitrogen-fixing heterocysts

  we report the identification of four genes that regulate commitment timing and efficacy in a cyanobacterium

  including two that delay commitment: a unique finding across developmental model systems. Through protein–protein interactions

  cell type-specific and -nonspecific expression patterns

  and epistatic relationships

  we present evidence that these four genes function together in a hierarchy to control correct timing of the commitment decision. This work illustrates the importance of Anabaena as a model system for studying the genetic underpinnings controlling the process of cellular differentiation.

  The heterocyst regulatory protein HetP and its homologs modulate heterocyst commitment in Anabaena sp. strain PCC 7120