Magnetic Gradient Survey of the Marpole Period Dionisio Point (DgRv-003) Plankhouse Village,Northwest Coast of North America

Architectural reconstructions of plankhouses are central to the study of household and community organization on the Northwest Coast of North America. However, the sample of substantially excavated houses is constrained by their size, stratigraphic complexity, and typically limited surface expression. We present the results of a magnetic gradiometry survey of the Dionisio Point site (DgRv-003) village, occupied ca. a.d. 500–700 on the coast of British Columbia, Canada. Survey of four house platforms reveals patterning of magnetic anomalies consistent with the structure of shed-roof houses, a design recorded ethnographically and identified archaeologically at the site. These results suggest a consistent pattern of spatial and, potentially, social organization of the households. The similarity of patterns suggests that magnetometry may be useful for guiding plankhouse excavations elsewhere on the Northwest Coast, providing a means for expanding our knowledge of houses without relying solely on traditional excavation methods.     

Iron Age Landscapes of the Benue River Valley,Cameroon

The Iron Age settlements of northern Cameroon were dispersed across the landscape, taking advantage of different eco-climatic zones to exploit a variety of natural resources. Situated at the interface of the upper and lower terraces of the Benue River, mound sites in the area around Garoua have occupation histories spanning multiple centuries. The site of Langui-Tchéboua displays evidence for rapid accumulation of sediments approximately 700 years ago, which may have been a deliberate construction strategy that would have allowed the site’s inhabitants to exploit resources in both floodplain and dryland contexts. The combined use of multiple dating methods and micromorphology provide novel insights into both the mechanisms of anthropogenic landscape change and possible motivations governing those choices.     

But There Was No War: The Impossibility of a United States Invasion of Canada after the Civil War

The notion that the United States threatened to invade the Canadian colonies after the Civil War persists to this day. Alleged British and Canadian support for the Confederate States angered Washington so much that Canadians feared military action. This menace started the Confederation movement that created the Dominion in 1867. This article argues otherwise by pointing to the careful diplomacy during the war—and rapid changes afterwards—each worked against the threat of a war. Tensions rose and fell with events such as the Trent Affair of 1861 and the St. Albans Raid of 1864, but each country otherwise sought to avoid trouble. Neither side deployed troops to the border during the war. After Appomattox, Union soldiers headed north but only to return home. Demobilization, combined with military deployments to the former Confederacy and the West, and resolute diplomacy afterwards, further prevented conflict. Not even the Fenian raids of 1866 and 1870 could disturb the peace.     

Australia's decision to initiate Whaling in the Antarctic: winning the case versus resolving the dispute

On May 31, 2010, Australia instituted proceedings before the International Court of Justice in the case of Whaling in the Antarctic (Australia v. Japan). Although Australian politicians had for some time threatened such a course of action, the decision to proceed with international litigation took many observers by surprise, most basically because Japan appeared to be in a strong legal position and the risks associated with the case appeared greater than Australia's prospects for success. This article examines the background to the whaling dispute and suggests two ways in which litigation in the World Court may contribute to resolution of the dispute no matter the legal outcome of the case.     

From English to British liberty, 1550–1800

This essay was written for a symposium on Dutch conceptual history in a comparative European perspective. The concept in question here is liberty, and the context first English and then (following the creation of the United Kingdom in 1707) British. What follows primarily addresses two themes, both challenging. First, what role did the concept of liberty play over an exceptionally long and turbulent period of English history punctuated by two revolutions? Second, what relationship existed during this period between English and Dutch understandings and experience of this concept?     

Muslim Selbstverständnis: Ahmet Davutoğlu answers Husserl's Crisis of European Sciences

In formulating his understanding of Islamic history, thought and politics, the Turkish Muslim thinker Ahmet Davuto?lu approves and adopts the German philosopher Edmund Husserl's formulation of phenomenology — or, philosophy of consciousness. Both Husserl and Davuto?lu perceive a crisis in humanity and identify its causes in scientism and logical positivism, against which they develop their respective phenomenological alternatives. This article places in parallel Husserl's stylised history of Western thought and Weltanschauung method with that of Davuto?lu's Muslim worldview, in order to illuminate the latter's putatively comprehensive interpretation of Islam, diagnosis of the ills of secularism, modernisation, and crisis of values he finds in Muslim societies; and his prescribed treatment for those ills: the privileging of ontology over epistemology, and the full unfolding of core theological concepts of revelation, monotheism, and prophecy. Davuto?lu seeks to reconcile tensions and disputes within Islamic intellectual traditions concerning the nature of God and God's attributes, and the tension between mysticism and rationalism, and the historical and the atemporal. In summary, Davuto?lu's intervention in Islamic traditions is interesting in the effort it makes to appropriate elements of both Husserl and GWF Hegel for the purpose of reconciling a phenomenological reading of Islam with established Islamic authorities and commitments.     

Assessing Quality of Spatial Models Using the Structural Similarity Index and Posterior Predictive Checks

Model assessment is one of the most important aspects of statistical analysis. In geographical analysis, models represent spatial processes, where variability in mapped output results from uncertainty in parameter estimates. Slight spatial misalignments can cause inflated error scores when comparing maps of observed and predicted variables using traditional error metrics at the level of individual spatial units. We conceptualize spatial model assessment as a continuous value map comparison problem and employ methods from image analysis to score model outputs. The structural similarity index, a measure that attempts to replicate the human visual system using a local region approach, is used as an exploratory map comparison statistic. The measure is implemented within a Bayesian spatial modeling framework as a discrepancy measure in a posterior predictive check of model fit. Results are reported for simulation studies representing a variety of spatial processes in a spatial and space–time context. A case study of rainfall mapping in Sri Lanka demonstrates the proposed methodology applied to assessment of Bayesian kriging interpolations. Both simulation studies as well as the case study demonstrate that the approach reveals hidden spatial structure not uncovered by traditional methods. The spatially sensitive assessment methodology provides a diagnostic tool to support spatial modeling and analysis. La evaluación de modelos es uno de los aspectos más importantes de análisis estadístico. En el análisis geográfico, los modelos representan procesos espaciales en los que la variabilidad en los outputs es el resultado de la incertidumbre en los parámetros estimados. Leves desajustes espaciales pueden inflar los valores de error en la comparación entre los mapas de las observaciones y los mapas de las predicciones de las variables si es que se usan medidas tradicionales de medición de error al nivel de unidades espaciales individuales. Los autores conceptualizan la evaluación de modelos espaciales como un problema de comparación mapas de valor continuo y emplea métodos de análisis de imágenes para cuantificar los resultados del modelo. Se utiliza el índice de similitud estructural (SSIM), una medida que intenta replicar el sistema visual humano utilizando un enfoque de región local, como técnica de exploratoria comparación estadística de mapas. El índice es implementado dentro de un marco de modelización espacial bayesiano como medida de discrepancia en la comprobación posterior de predicción del desempeño del modelo. Los resultados se presentan para varios casos de simulación que representan una serie de procesos espaciales en un contexto espacio‐temporal y espacial. Un estudio de caso de mapeo de lluvias en Sri Lanka sirve como demostración de la metodología propuesta y su aplicación a la evaluación de las interpolaciones tipo krigeage (kriging) bayesianas. Tanto los estudios de simulación, así como el estudio de caso demuestran que el enfoque propuesto revela la estructura espacial oculta no evidenciada por métodos tradicionales. La metodología de evaluación espacialmente sensible que se presenta en este artículo proporciona una herramienta de diagnóstico para apoyar la elaboración de modelos y análisis espacial. 模型评估是统计分析中最为重要的内容之一。在地理分析中用模型表达空间过程,参数估计的不确定性会导致地图输出结果的可变性。当采用传统误差指标度量,在个体空间单位水平上进行观测和预测变量的地图比较时,微小的空间错位就可能导致误差的倍增。为此,本文通过将空间模型评估指标概念化为一个连续值图比较问题,并利用图像分析方法来评定模型输出。一种尝试以局域方法仿制人类视觉系统的度量指标——结构相似指数(SSIM),被用作为探索性地图的比较统计量。在贝叶斯空间模型框架下实现其量算,并将其作为一个偏差度量应用于模型拟合的后预测校验。仿真研究的结果显示出空间及时空环境下多类空间过程。以斯里兰卡降雨过程图为案例,展示了上述方法对贝叶斯克里格插值的准确性评估。仿真研究与实证结果均证明本文提出的方法可揭示以往传统方法掩盖的空间结构特征,空间敏感性评价为本研究的空间建模和分析提供了一个诊断工具。