Efficacy of Several Candidate Protein Biomarkers in the Differentiation of Vaginal from Buccal Epithelial Cells*

Abstract: Currently, there is no accurate method to differentiate vaginal epithelial cells from buccal epithelial cells in biological samples typically encountered in forensic casework. This study tested the expression of a selection of candidate proteins in buccal and vaginal epithelial cells. We investigated six candidate biomarkers, such as loricrin, vimentin, stratifin, cytokeratin 4, cytokeratin 13, small proline‐rich protein 2, and involucrin, using Western blot analysis on whole protein extracts and immunohistochemistry (IHC) on intact cells in an attempt to identify cell‐specific markers that would differentiate these cells by microscopy. Involucrin, loricrin, and stratifin showed differential expression during Western blot analysis and were carried through to IHC. Although proteins unique to vaginal epithelial cells and buccal epithelial cells were not identified from among the proteins tested, the increased expression levels of two proteins, loricrin and stratifin in vaginal cells, when compared to buccal cells, do provide encouraging results in the search for epithelial cell‐specific markers.     

A Failed Refutation and an Insufficiently Developed Insight in Hart’s Law, Liberty, and Morality

H. L. A. Hart, in his classic book Law, Liberty, and Morality, is unsuccessful in arguing that James Fitzjames Stephen’s observations about the role of vice in criminal sentencing have no relevance to a more general defense of legal moralism. He does, however, have a very important insight about the special significance of sexual liberty.     

Contrast and Foundation of the Public Oversight Roles of the U.S. Government Accountability Office and the U.K. National Audit Office

This paper examines and compares, according to the New Public Management approach, the U.S. watchdog, the Government Accountability Office, in its ability to oversee and call to account the executive branch of government, and its U.K. counterpart, the National Audit Office. Results of this examination indicate that the Government Accountability Office is more effective than its U.K. counterpart. Its greater effectiveness is attributable to the fact that it derives its powers and legitimacy from a written constitution; in contrast, in the United Kingdom there is no equivalent document defining the relationship between the state and the citizenry. As a consequence, the powers, duties, and self-perception of the National Audit Office are significantly weaker and more mutable than those of the Government Accountability Office.     

Poverty and prosperity among migrant settlers in the Amazon rainforest frontier of Ecuador

Household‐level interview data from a probability sample survey conducted in the northeastern Ecuadorian Amazon in 1990 are used to examine the determinants of income and assets among migrant farmers in the agricultural frontier. Multivariate analysis indicates that size of plot owned, proximity to markets, duration of residence, quality of soil, receipt of technical assistance, off‐farm employment and initial wealth positively influence current household income and wealth. More land in cattle pasture is also associated with higher status. Some settlers are prospering relative to others despite variable soil quality, unsustainable land uses, geographic isolation, apparent scarcity of labor, and lack of supportive infrastructure. The article closes with a discussion of implications for policies to assist small farmers, with some consideration of the potential ecological consequences of farmers’ activities.