Measuring double consciousness among black law enforcement officers to understand the significant role of race in law enforcement occupational cultures

The current study correlates Merton's anomie theory and W. E. B. Dubois's double-consciousness theory to measure black law enforcement officers' reactions to occupational strain resulting from officers' ethnic-identification. Measuring levels of anomic behavior provides a scale for identifying levels of risk affecting the well-being of individual officers and organizations. Testing hierarchal regression models with a national sample of black state- and federal-level law enforcement officers (n = 84) reveals a presence of double consciousness as a significant predictor for levels of anomic behavior in law enforcement occupational cultures. It also further suggests that race remains a significant factor in law enforcement organizations and cultures, whereas many police executives would prefer to believe that race issues in policing are settled.     

Tracing the Flow of Policy Ideas in Legislatures: A Text Reuse Approach

This article proposes a new approach to investigating the substance of lawmaking. Only a very small proportion of bills become law in the U.S. Congress. However, the bills that do become law often serve as vehicles for language originating in other bills. We investigate “text reuse” methods as a means for tracing the progress of policy ideas in legislation. We then show how a focus on policy ideas leads to new insights into the lawmaking process. Although our focus is on relating content found within bills, the same methods can be used to study policy substance across many research domains.     

Portable high‐resolution automated 3D imaging for footwear and tire impression capture

The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.     

Land of Abundance

<正>Sichuan taps Belt and Road for overseas partnerships It has the sixth highest GDP in China,the largest potential for hydropower generation and is the gateway not only to China’s west,but also to Southeast Asia’s developing markets.It’s also home to pandas.But it’s not enough,and Sichuan,a southwestern province of China,is on a mission to climb the GDP and development indicator rankings in the country,using the Belt and Road Initiative.