The Privatization of Expendable Launch Vehicles: Reconciliation of Conflicting Policy Objectives

This paper documents the decision process pursued by the President and key federal agencies addressing the issue of privatization of routine commercial space satellite launches via expendable launch vehicles. It is a case study of incremental decision making in the extreme, characterized by the formulation of conflicting policy goals in response to contingencies which ultimately paralyzed the policy process, even as government was confronted with issues of considerable gravity and urgency. The decision process unfolded in a highly dynamic environment, including the development of a internationally competitive space launch market and the Challenger accident. A key issue is the role of the chief executive in managing the policy implementation process, once conflicting goals have been formulated. The case illustrates how strategic miscalculation by the agencies involved, and a laissez-faire management style by the chief executive, exacerbate the ordinarily expected difficulties.     

Peace agreements in a near-permanent civil war: Learning from Sudan and South Sudan

The conflicts in the formerly united Sudan have led to millions of deaths since the country's independence. The Naivasha Agreement was meant to end these wars. The January 2005 agreement foresaw a future where the Sudan People's Liberation Army/Movement and the Sudanese government would coexist within the framework of a united country. Subsequently, in 2011, however, the country was partitioned and the conflicts in Sudan and South Sudan have continued unabated. Interrogating the treaty texts and employing a case study approach and analysis of the economic and power dynamics within the region, this paper addresses the reason behind the failure of the comprehensive peace agreement and subsequent agreements intended to bring peace after partition. It becomes evident that the same dynamics that fed the partition of the country have helped bring conflict within its two successor states. In short, agreements are not sufficient to build peace.     

How Strong Is Public Support for the Death Penalty in Singapore?

Singapore is well known internationally for its uncompromising stance towards law and order and its use of the death penalty in particular for murder and drug trafficking. Until 2012, it was one of the few countries in the world where the death penalty was mandatory for persons convicted of these two crimes. The law was amended in 2012 to give a judge the choice to impose the death penalty or life imprisonment (with caning) for non-intentional murder and drug trafficking in some situations. What do Singaporeans think of the use of the death penalty in their own country? This article reports on some findings of a survey conducted in 2016 on 1500 Singaporeans to assess their knowledge and support of the death penalty.     

Identifying Fatal Head Injuries on Postmortem Computed Tomography Using Convolutional Neural Network/Deep Learning: A Feasibility Study

Postmortem computed tomography (PMCT) is a relatively recent advancement in forensic pathology practice that has been increasingly used as an ancillary investigation and screening tool. One area of clinical CT imaging that has garnered a lot of research interest recently is the area of “artificial intelligence” (AI), such as in screening and computer-assisted diagnostics. This feasibility study investigated the application of convolutional neural network, a form of deep learning AI, to PMCT head imaging in differentiating fatal head injury from controls. PMCT images of a transverse section of the head at the level of the frontal sinus from 25 cases of fatal head injury were combined with 25 nonhead-injury controls and divided into training and testing datasets. A convolutional neural network was constructed using Keras and was trained against the training data before being assessed against the testing dataset. The results of this study demonstrated an accuracy of between 70% and 92.5%, with difficulties in recognizing subarachnoid hemorrhage and in distinguishing congested vessels and prominent falx from head injury. These results are promising for potential applications as a screening tool or in computer-assisted diagnostics in the future.     

Real Estate Markets Are Informationally Efficient: Evidence from Buyer and Agent/Broker Surveys

This article presents new evidence based on unpublished buyer surveys and real estate agent and broker surveys supporting the consensus in the published literature that real estate markets are informationally efficient. This evidence is drawn from expert reports submitted in litigation involving claims that contamination caused property value diminution, and presents a new hedonic regression model of residential sales prices that includes as an independent variable the state of knowledge of the buyer regarding a contamination event. In this model the state of knowledge of the buyer has no statistically significant effect on the sales price. The article also discusses standards for the use of buyer and agent/broker surveys in litigation.