Building collective action at crime hot spots: Findings from a randomized field experiment

Journal of Experimental Criminology - The study examined whether Assets Coming Together (ACT), a policing intervention directed at increasing collective action and collective efficacy at crime hot...     

An unwilling client: how Hosni Mubarak's Egypt defied the Bush administration's ‘freedom agenda’

When the George W Bush administration announced the ‘freedom agenda’ in the Middle East, officials claimed it marked a major break in United States (US) foreign policy. In 2005, the administration intensified efforts pressuring Egypt, a client state, to democratize. However, the US continued pursuing security cooperation with and providing military aid to Egypt. Egyptian President Hosni Mubarak repelled US reform efforts by exploiting the normative inconsistency between democratization and security in the war on terror. This paper reviews Mubarak's ‘balking’ strategy (Stephen Walt, Taming American power, New York: WW Norton, 2005), including feigning compliance through nominal legal changes and counter-arguments to buy time until the inconsistencies in US policy came to a head. By 2006, the US had abandoned the freedom agenda and the Egyptian regime had embarked on a repression campaign. As I argue, the implications of the contradictions in US policy towards Egypt demonstrate that weaker client states may enjoy increased agency vis-à-vis a weakly committed patron hegemon.     

Quantitative PCR overestimation of DNA in samples contaminated with tin

Metals can pose challenges while conducting forensic DNA analysis. The presence of metal ions in evidence-related DNA extracts can degrade DNA or inhibit PCR as applied to DNA quantification (real-time PCR or qPCR) and/or STR amplification, leading to low success in STR profiling. Different metal ions were spiked into 0.2 and 0.5 ng of human genomic DNA in an “inhibition study” and the impact was evaluated by qPCR using the Quantifiler™ Trio DNA Quantification Kit (Thermo Fisher Scientific) and an in-house SYBR Green assay. This study reports on a contradictory finding specific to tin (Sn) ions, which caused at least a 38,000-fold overestimation of DNA concentration when utilizing Quantifiler Trio. This was explained by the raw and multicomponent spectral plots, which indicated that Sn suppresses the Quantifiler Trio passive reference dye (Mustang Purple™, MP) at ion concentrations above 0.1 mM. This effect was not observed when DNA was quantified using SYBR Green with ROX™ as the passive reference, nor when DNA was extracted and purified prior to Quantifiler Trio. The results show that metal contaminants can interfere with qPCR-based DNA quantification in unexpected ways and may be assay dependent. The results also highlight the importance of qPCR as a quality check to determine steps for sample cleanup prior to STR amplification that may be similarly impacted by metal ions. Forensic workflows should recognize the risk of inaccurate DNA quantification of samples that are collected from substrates containing tin.     

Sequence polymorphism of mitochondrial D-loop DNA in the Taiwanese Han population

In order to demonstrate the sequence diversity of mitochondrial D-loop DNA in the Taiwanese Han population, we established a database of 155 unrelated individuals. For each individual, the complete 980bp DNA region from the 5' end of HVI to 3' end of HVII segment was sequenced. In these 155 sequence data, 149 different haplotypes were observed, amongst these haplotypes, 144 were unique, 4 were found in 2 individuals and 1 was found in 3 individuals. When compare to the Anderson sequence, 144 transitions, 24 transversions, 5 insertions and 5 deletions were found. Eight positions exhibited more than one polymorphic sequence, six exhibited two variants while two exhibited three variants. Over the 1024bp that was analysed, pairwise differences between the sequences were 11.35+/-3.53bp. The sequence and nucleotide diversity were 0.9994 and 0.0116, respectively. The probability of two individuals randomly matching over the entire control region was 0.007. The diversity in the mitochondrial D-loop indicates the value of this locus for casework within Taiwan.     

Does the Network Centrality of Government Actors Matter? Examining the Role of Government Organizations in Aquaculture Partnerships

The growth in the use of collaborative governance arrangements has been accompanied by burgeoning scholarship in the field of public affairs that seeks to understand the benefits of engaging diverse stakeholders in common venues. However, few scholars have formally assessed the role of government actors in facilitating outcomes for individual participants in such efforts. Moreover, little work on collaborative governance examines how individual incentives and barriers to collective action are formed within the nested nature of these contexts. We contribute to the study of collaborative governance by formally investigating how the relative centrality of government actors in collaborative policy‐making venues affects individual relationship building and learning for participants therein. We find that government actor centrality is positively associated with relationship building and learning. However, in testing two different conceptualizations of “centrality,” we find that the definition of this construct clearly matters.     

Economic and Ideological Corruptions of the Regulatory State

What accounts for the excesses of the regulatory state? Economists have shown that bad regulations are often due to “rent seeking” and “regulatory capture” and have provided compelling accounts of the incentives that drive these processes. However, there remain many unwarranted regulations, such as recent gun control measures, that cannot be explained by an economic rationale. Rather, it is essential to understand the distinctively ideological origins and functions of such regulations. This paper examines both the economic and ideological corruptions on the regulatory state, suggesting that those concerned with the growth of state power will have to address both of these phenomena.