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" peer review , " where respected members of a field of study read submitted articles and report to the journal on whether or not they represent good , original research . In consultation with the director , students will develop a program of study suited to their own language proficiency and disciplinary interests . The work builds on Visitor Orientation in Human-Computer Interaction [ Hedman ‘ 01 ] where the visitor oriented perspective was first established and a series of studies were performed in 3D digital environments . A number of studies were carried out prior to widespread use of hepatitis B vaccine in the United States to determine the burden or magnitude of this disease . AB - A number of studies revealed that high expression of the proto-oncogene bcl-2 correlated with poor prognosis or resistance to chemotherapy in some tumors but predicted a favorable clinical course in other neoplasias .