Timothy J. Brady, Assistant Professor (1999- )
B.A. and B.S., University of Washington, 1984; M.S. University of Washington, 1987; Ph.D., University of California, Berkeley, 1996.

Research Interests: Prof. Brady studies the ecology and evolution of forest tree species, especially the pines of western North America.

Office: School of Education, Room 317
Phone: 415 422-5741
E-mail:
brady@usfca.edu


Paul K. Chien, Professor (1973- )
BS, Chung Chi College, N.T., Hong Kong, Chemistry, 1962; BS, Chung Chi College, NT, Hong Kong, Biology, 1964; Ph.D.,University of California, Irvine, 1971.

Research Interests: Prof. Chien is interested in the physiology and ecology of inter-tidal organisms. His research has involved the transport of amino acids and metal ions across cell membranes and the detoxification mechanisms of metal ions.

Office: Harney Science Center, Room 307
Phone: 415 422-6345
E-mail:
chienp@usfca.edu


Carol J. Chihara, Professor Emeritus (1975- )
BS, University of California, Berkeley, 1962; M.A., San Francisco State College, 1967; Ph.D., University of California, Berkeley, 1972.

Research Interests: Currently, Prof. Chihara's lab is working on the characterization of a gene, named omega, which is recessive gene for the enzyme dipeptidyl peptidase IV that functions as a modifier of the third instar cuticle protein #5. They have not yet determined if this gene is induced by ecdysone. However, the gene is extremely interesting because it not only modifies a larval cuticle protein but has been shown in previous studies (done by two undergraduate students) to effect the time of development of the larvae and the fertility of the male adult, (only the male, the female is normal). The enzyme dipeptidyl peptidase IV, is a homolog of human CD26, which is involved in signal transduction and neural peptide processing in humans. They have cloned the gene and are characterizing the enzyme. The enzyme is very similar to human DPPIV, occurs both as a membrane bound and soluble enzyme in at least two different tissues, testes and cuticular endothelium.

Office: Harney Science Center, Room 364
Phone: 415 422-6531
E-mail:
chihara@usfca.edu

Jennifer A. Dever, Assistant Professor (2002-)
BS, Ball State University, 1992; MA, Ball State University, 1994; Ph.D., Texas Tech University, Lubbock, 2000.

Research Interests: Prof. Dever conducts research in the area of conservation genetics. Her interest lies in exploring population genetics questions regarding the evolutionary forces of gene flow and genetic drift as well as the impacts of inbreeding on wild populations. Specifically, she utilizes molecular techniques to better understand genetic structure in order to conserve endangered and threatened populations.

Office: Harney Science Center, Room 352
Phone: 415 422-5481
E-mail:
jadever@usfca.edu


Deneb Karentz, Professor (1991- )
BS, University of Rhode Island, 1973; MS, Oregon State University, 1976; Ph.D., University of Rhode Island, 1982.

Research Interests: Prof. Karentz's research focuses on the ultraviolet photobiology of marine organisms: identifying strategies for protection from UV exposure and understanding mechanisms for repair of UV-induced damage. Her most recent work has focused on investigating the ecological implications of Antarctic ozone depletion (funded by the National Science Foundation).

Office: Harney Science Center, Room 347
Phone: 415 422-2831
E-mail:
karentzd@usfca.edu

Leslie King, Instructor (1992- )
BS, U.C. Davis, 1989; MS San Francisco State, 1993.

Research Interests: Ms. King's graduate research focused on hemoglobin-oxygen affinities of adult and fetal swell sharks (C. ventriosum) and she has participated in field studies of shark behavior and feeding in the Bahamas. In addition to shark reproduction and behavior, she is interested in undergraduate laboratory education. Ms. King began working at U.S.F. in 1992 and currently teaches human physiology for nursing majors and general biology laboratories.

Office: Harney Science Center, Room 350
Phone: 415 422-5704
E-mail:
kingle@usfca.edu


Mary Jane Niles, Professor (1992- )
BS, San Francisco State University, 1985; Ph.D., University of California, Berkeley, 1992.

Research Interests: Prof. Niles is interested in the regulated development of B lymphocytes, a population of cells critical to protective immunity. Her research focuses on defining those molecular events that promote the assembly, transport, and secretion of antibodies.

Office: Harney Science Center, Room 323
Phone: 415 422-2354
E-mail:
niles@usfca.edu


Scott Nunes, Associate Professor
(2000- )
BA University of California, Santa Cruz, 1986; Ph.D. Michigan State University, 1997
.

Research Interests: Prof. Nunes is interested in questions at the interface between physiology, behavior, and ecology. His studies have examined hormonal and energetic regulation of dispersal, play, and parental behaviors in mammals.

Office: Harney Science Center, Room 325
Phone: 415 422-5645
E-mail:
nunes@usfca.edu


Bonnie A.B. Okonek, Instructor
BA San Jose State College; MA San Jose State University.

Research Interests: Ms. Okonek worked as a medical microbiologist in a hospital laboratory for 11 years, 9 of them as microbiology supervisor. Her research concerned susceptibility testing of rough, smooth, and mucoid Pseudomonas aeruginosa isolated from cystic fibrosis patients.

Office: Harney Science Center, Room 513
Phone: 415 422-5331
E-mail:
okonek@usfca.edu


Patricia J. Schulz, Professor (1978- )
BA, Rosary College, 1959; MS, Fordham University, 1962; Ph.D., University of California, Berkeley, 1966.

Research Interests: Prof. Schulz is studying cell development in the reproductive structures (ovules and anthers) of flowering plants using the techniques of electron microscopy and cytochemistry. Current emphasis is on the study of the effects of chemical hybridizing agents (spermicides used to produce hybrid wheat seed) or the development of wheat pollen.

Office: Harney Science Center, Room 315
Phone: 415 422-6367
E-mail:
schulzp@usfca.edu


Juliet Spencer, Assistant Professor (2003-)
BS, Worcester Polytechnic Institute, 1993; Ph.D., University of Virginia, 1998.

Research Interests: Prof. Spencer is interested in viral pathogenesis and modulation of the human immune system. She is studying the effects of herpesvirus-encoded cytokines with the aim of elucidating downstream signaling events that lead to immune suppression. Present work is focused on determining how viral cytokines have evolved to selectively retain specific cytokine functions that are most beneficial to virus
persistence.

Office: Harney Science Center, Room 323
Phone: 415 422-5470
E-mail:
jspencer@usfca.edu


Gary L. Stevens, Professor (1970-)
BS, California State University, Long Beach, 1964; MA, University of California, Davis, 1966; Ph.D., University of California, Davis, 1970.

Research Interests: Prof. Stevens' research centers around small mammal demography and environmental monitoring. His studies have included research in the Arctic, California, and Papua New Guinea.

Office: Harney Science Center, Room 359
Phone: 415 422-6276
E-mail:
stevens@usfca.edu


John Sullivan, Professor, Department Chair and Fletcher Jones Endowed Chair (2000-)
AB, Dartmouth College, 1968; MS, Lehigh University, 1974; Ph.D., Lehigh University, 1976.

Research Interests: Prof. Sullivan investigates the role of the molluscan immune system in responding to parasitic infection and foreign tissue transplants. He is specifically interested in the interaction between the schistosome parasite, a major cause of human disease, and the snail intermediate host (Funded by the National Institutes of Health).

Office: Harney Science Center, Room 361
Phone: 415 422-5975
E-mail:
sullivan@usfca.edu


Christina Tzagarakis-Foster, Assistant Professor, (2005-)
BS University of San Francisco, 1990; Ph.D. Microbiology U.C. Davis, 1999.

Research Interests: Dr. Tzagarakis-Foster is interested in studying the Dax-1 (Dosage Sensitive Sex Reversal, Adrenal Hypoplasia Congenita, critical region on the X chromosome, gene 1) protein, a member of a large group of eukaryotic transcription factors called the nuclear hormone receptors. She has found that Dax-1 is a potent transcriptional repressor and is able to block the growth of breast cancer cells using a mouse model system. Currently, Dr. Tzagarakis-Foster's research is focused on investigating the mechanism of repression by Dax-1 as well as examining the role of Dax-1 in preventing breast tumor formation in women.

Office: Harney Science Center, Room 327
Phone: 415 422-6820
E-mail:
ctzagarakis@usfca.edu



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