The Effect of Light Exposure on the Degradation of Latent Fingerprints on Brass Surfaces: The Use of Silver Electroless Deposition as a Visualization Technique

We have studied the degradation of sebaceous fingerprints on brass surfaces using silver electroless deposition (SED) as a visualization technique. We have stored fingerprints on brass squares either (i) in a locked dark cupboard or (ii) in glass‐filtered natural daylight for periods of 3 h, 24 h, 1 week, 3 weeks, and 6 weeks. We find that fingerprints on brass surfaces degrade much more rapidly when kept in the light than they do under dark conditions with a much higher proportion of high‐quality prints found after 3 or 6 weeks of aging when stored in the dark. This process is more marked than for similar fingerprints on black PVC surfaces. Identifiable prints can be achieved on brass surfaces using both SED and cyanoacrylate fuming (CFM). SED is quick and straightforward to perform. CFM is more time‐consuming but is versatile and can be applied to a wider range of metal surfaces than SED, for example brass surfaces which have been coated by a lacquer.     

Voting Islamist or voting secular? An empirical analysis of voting outcomes in Egypt’s “Arab Spring”

This paper studies empirically the voting outcomes of Egypt’s first parliamentary elections after the Arab Spring. In light of the strong Islamist success at the polls, we explore the main determinants of Islamist versus secular voting. We identify two dimensions that affect voting outcomes at the constituency level: socioeconomic profile and the electoral institutional framework. Our results show that education is negatively associated with Islamist voting. Interestingly, we find significant evidence suggesting that higher poverty levels are associated with a lower vote share for Islamist parties. Exploiting the sequential voting setup, we show that later voting stages have not resulted in stronger support for the already winning Islamist parties (i.e., there is no bandwagon effect).     

The Fair Housing Act Today: Current Context and Challenges at 50

ABSTRACT

As is true for most legislation, the Fair Housing Act (FHA) was a product of its time; the legislation’s content, and even passage, was formed by dominant issues in housing markets and the country at that time. The context shaped the goals of the FHA and the strategies and tools employed under its auspices. Fifty years after the passage of the FHA, much of that context has changed. This commentary argues that changes in the context not only raise new fair housing challenges and create new gaps in our knowledge, but also may necessitate a fresh look at fair housing strategies and tools if they are to be effective at achieving the goals of the act. This commentary begins with a brief background on the FHA itself, the social context at the time of its writing, and its main goals. Next it lays out a few key changes in housing markets relevant for fair housing, highlighting challenges they may create and where research could be of greatest value. It then considers challenges arising from threats to two specific U.S. Department of Housing and Urban Development (HUD) fair housing rules seen by many as critical fair housing tools. The commentary ends with two examples of a “refresh,” where current context has shaped, or reshaped, a strategy to address today’s fair housing challenges.