The detection of Y chromosomes in bloodstains--a reevaluation

A method has been described for detecting Y chromosomes in the leukocytes of human bloodstains prepared on a variety of substrates. The factors that influence the proportion of chromosomes exhibiting a Y spot (the Y cell index) in a bloodstain are considered, including the subjective nature of assessment of the Y chromosome fluorescence, the substrate, and the age of bloodstain. In contrast to previous workers no decay in Y cell index with the age of the stain was observed. The results of a blind trial involving stains derived from case work, where from other evidence there was no doubt as to the sex of the donor, are presented. Sixty-five percent of the male bloodstains were correctly identified and no females were wrongly reported as male.     

New findings on the transfer of computing applications among cities

This paper presents a study of the concepts of transferring computer technology among city governments. A sample of cities from a domestic population and an international population are used as the basis of the research. Contrary to expectation, and for both populations, the survey indicated the level of computer applications transfer among cities was found to be low compared to the amount of total application development. It was determined that an important source of transfer information was from “centers” such as the federal government, vendors, and transfer agencies, rather than city to city. International cities that were studied seem to experience a propensity toward centralized control at the national level. These controls often include the transfer of technical information. Further, the types of transfer may vary widely between the domestic vs the international cities. That is, domestic city transfers tend to be operations-oriented, while transfers from national centers tend to be management oriented. In general the study supported prior conclusions concerning the difficulties of transfer. The problem of mismatch and difficulties in modification make transfers very risky. Even so, there are many persons willing to take the risks in order to try to achieve lower costs and to realize the opportunity to obtain sophisticated applications.     

The Transformation of the Western State: The Growth of Democracy,Autocracy, and State Power Since 1800

This article uses POLITY II, a new dataset on the authority traits of 155 countries, to assess some general historical arguments about the dynamics of political change in Europe and Latin America from 1800 to 1986. The analysis, relying mainly on graphs, focuses first on the shifting balance between democratic and autocratic patterns in each world region and identifies some of the internal and international circumstances underlying the trends, and deviations from them. Trends in three indicators of state power also are examined in the two regions: the state's capacity to direct social and economic life, the coherence of political institutions, and military manpower. The state's capacity has increased steadily in both regions; coherence has increased in the European countries but not Latin America; while military power has fluctuated widley in both regions. The article is foundational to a series of more detailed longitudinal studies of the processes of state growth. Ted Robert Gurr is a professor of government and politics at the University of Maryland and Distinguished Scholar at the University's Center for International Development and Conflict Management (Mill Building, University of Maryland, College Park, MD 20742). Among his 14 books and monographs areWhy Men Rebel (awarded the Woodrow Wilson Prize as best book in political science of 1970).Patterns of Authority: A comparative Basis for Political Inquiry (with Harry Eckstein, 1975), andViolence in America, (3d edition. 1989). He is engaged in a long-term global study of minorities' involvement in conflict and its consequences and resolution. Keith Jaggers is a Ph.D. candidate in the Department of Political Science at the University of Colorado and research assistant in the Department's Center for Comparative Politics, Campus Box 333, University of Colorado, Boulder, CO 80309. He is co-author with Will H. Moore of “Deprivation, Mobilization, and the State,” recently published in theJournal of Developing Societies, and is currently working on an empirical study of the impact of war on the growth of the state. Will H. Moore is a Ph.D. candidate in the Department of Political Science at the University of Colorado and research assistant in the Department's Center for Comparative Politics. He is also a co-author with Maro Ellena of a forthcoming article inWestern Political Quarterly on the cross-national determinants of political violence. His current research interests include the resolution of internal wars and the formation of coercive states.     

The development of an enzyme-linked immunosorbent assay for 19-OH PG F1 alpha/F2 alpha

An enzyme-linked immunosorbent assay (ELISA) has been developed for the detection of semen-specific 19-OH prostaglandin F1 alpha/F2 alpha (PGF). The assay can reliably and reproducibly detect as little as 2 pg 19-OH PGF/100 microliters and allows for the rapid analysis of large numbers of swab and stain extracts for the presence of semen.