Obsidian sources in highland Yemen and their relevance to archaeological research in the Red Sea region

The Red Sea and surrounding area formed through dynamic uplift and rifting of Afro-Arabia, and associated volcanism (both oceanic and continental in character). As a result, volcanic landforms and products are widespread and play a vital role in the natural and cultural landscapes of humans occupying the highlands and lowlands on both sides of the Red Sea. Archaeologists have suggested for some time that Afro-Arabian trade in obsidian had its roots in the prehistoric period and that the region was very likely the source of an abundance of obsidian artefacts found as far afield as Egypt, the Persian Gulf and Mesopotamia, and which do not match the well-known Anatolian, Transcaucasian or Mediterranean sources. Nonetheless, the southern Red Sea is one of the few obsidian-rich regions exploited in antiquity that has been barely investigated. In this paper, we highlight new geochemical analyses (carried out by LA-ICP-MS) of obsidian sources in Southern Arabia and beyond, that enhance our knowledge of obsidian exploitation from as early as the Neolithic period, and which enable us to evaluate the role that highland Yemen obsidian sources played in prehistoric long-distance trade. In addition, we present new evidence for explosive volcanic eruptions that likely affected the highland populations of Yemen in the 4th millennium BC.     

Public Goods and the Derivation of Land Value Assessment Schedules within a Spatial Equilibrium Setting

A method of mapping the classic economic public good into a spatial realm is identified. Within the spatial equilibrium land use model an ideal government distributes a public good; sets mill rates, assesses land, and collects property taxes; and maintains a balanced budget. Equilibrium is brought about within the household sector by the unfolding of the land value schedule both over space and in response to the public sector. The household and public sectors are mutually within a steady state when there is no excess demand or supply of public good. The model is extended to elucidate Tiebout's hypothesis that government activity is reflected in land values. Also, a criterion for judging fairness of the spatial equilibrium assessment schedule is presented and applied.     

The adoption of culturally contentious innovations: The case of citizen oversight of police

Cultural contentiousness is defined as an attribute of innovation due to which it encounters resistance because of its incompatibility with hegemonic cultural assumptions. I argue that culturally contentious innovations are likely to be adopted when antecedents have productive symbolic force, i.e., they reveal contradictions between dominant cultural assumptions and the material outcomes of existing institutions or empower social actors to resolve such contradictions. However, antecedents with incapacitative symbolic force tend to obfuscate the above contradictions or decrease social actors’ capacity to resolve them, encouraging the adoption of less contentious innovation. Applying these arguments to citizen oversight agencies (COAs) for the police, I examine the antecedents of contentious (i.e., investigative) as opposed to less contentious (non-investigative) COAs. In support of the above argument, I find that productive antecedents (e.g., a consent decree, an increase in civil rights nonprofits) are associated with adopting investigative COAs. In contrast, incapacitative antecedents (e.g., a Law Enforcement Officer Bill of Rights, an increase in the violent crime rate) are associated with adopting non-investigative COAs. The findings broadly demonstrate that policy adoption scholars ought to distinguish policies in terms of cultural contentiousness and account for the symbolic force of antecedents. Further theoretical contributions are discussed.     

Trust in world politics: converting ‘identity’ into a source of security through trust-learning

In the discipline of international relations, the concept of trust has been theorised in two ways: the ‘rationalist’ approach and the ‘normative’ approach. This article aims to show that these approaches do not adequately reflect how trust operates in world politics and that trust provides a new way of understanding the identity–security nexus in international relations. It is argued that as actors learn to trust each other, this trust-learning process has a transformative effect on their definition of self-interests and identities. The elaborated understanding of trust in the security dilemma is operationalised in terms of the immigration security dilemma.     

Comparison of the Spectral Representation Method to Simulate Spatially Variable Ground Motions

The spectral representation method (SRM) is widely used when simulating spatially variable ground motions. It has mainly two formulas, i.e., the random amplitudes and the random phases formulas. There exist three methods for decomposing the cross spectral density matrix: Cholesky decomposition, eigen decomposition, and root decomposition. Therefore, there are six forms with respect to the different combinations of the simulation formulas and the decomposition methods. To provide researchers and engineers with the guidance on choosing simulation method, the six forms are systematically investigated from five aspects: the power intensity, response spectra, and stochastic error of auto/cross spectral density, Fourier spectra, and difference indexes for Fourier amplitudes and phases. Finally, we give the following advice: the characteristics of the ground motions simulated by the random amplitudes formula are independent of the decomposition method, while the characteristics of the ground motions simulated by random phases formula are dependent of the decomposition method. Furthermore, the root decomposition is strongly recommended when utilizing the random phases formula.     

WAPA TOWN AT THE MOUNTAIN AREA

<正>I guess that,even in Tibet,apart from the residents themselves,few people have ever heard of Wapa Town.My colleagues had no knowledge of Wapa Town.I never he...     

The impacts of education and institutional trust on citizens’ willingness to report corruption: lessons from Papua New Guinea

Educated citizens are often considered more likely to report corruption; this belief shapes anti-corruption campaigns. However, we know little about how other factors may interact with education’s impact on willingness to report corruption. This article examines data from a household survey undertaken in Papua New Guinea. We find considerable support for the notion that education encourages a greater willingness to report various types of corruption to officials. While our results indicate that this is especially the case when respondents believe that corruption would be addressed by the government, they also show that secondary and post-secondary levels of education can have a positive impact even among those who do not have much faith in reporting institutions. However, the results also suggest that academics and policy-makers should be sensitive to the way trust in the state impacts educated citizens’ willingness to report different kinds of corruption.     

The making of politics and trained intelligence in the Near East: Robert College of Istanbul

Abstract

This article examines the role of Robert College in Turkish-American relations in the early decades of the Turkish Republic. Relying on recently discovered archival sources and biographical accounts it explores political and educational networks between the United States and Turkey. Robert College, founded in 1863, was the first American College established abroad. It was, however, more than an educational institution; the College teaching staff acted as diplomatic and cultural correspondents for both countries. The trust the College staff earned among the Turkish elite during the First World War continued in the early years of Republic. This relationship turned into a more lucrative collaboration during the early periods of the Cold War. The story of Robert College in Turkey demonstrates the impact of trained intelligence on political relations between the two countries.