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In August 2016, a multidisciplinary team conducted the first archaeological survey of the deep-water (829 m) wreck of the ex-USS Independence (CVL22) using the remotely operated vehicles Argus and Hercules. The survey provided 34 h of direct observation with video and still camera documentation of the wreck, which the previous year had been initially identified with a limited three-dimensional sonar survey of the site. The 2016 assessment added considerably to an understanding of changes to Independence after its use as a target vessel for the 1946 atomic bomb tests at Bikini Atoll, as a radiological laboratory, training facility, and finally as a receptacle for “nuclear waste” prior to its scuttling off California in January 1951. The location and detailed examination of the wreck, along with additional archival research, offers a more nuanced definition of the carrier’s role within the context of the Cold War between the USSR, its adversaries and the race to establish nuclear supremacy, as well as site formation processes and ongoing biological colonization of the wreck site. As well, no evidence of residual radiological contamination was noted during the mission.  相似文献   
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Using intercountry input-output tables and disaggregated employment data, we decompose labor productivity growth between 1975 and 1985 in six Western European countries into partial effects of six determinants including changing international trade and changing final demand. To this end, new multiplicative decomposition formulas are derived and implemented. In a similar way, we study labor productivity changes in vertically integrated industries. The effects of structural change on convergence are investigated also. We see this paper as an attempt to merge the convergence literature with earlier single-country productivity-change decompositions using input-output data.  相似文献   
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Transport corridors are viewed as a promising way forward in European Union (EU) transport policy, assumed to contribute positively to regional economic development. However, the validity of this assumption is not evident. The aim of this paper is to empirically test whether agglomeration economies in European transport corridor regions are positively related to indicators of regional economic development compared to regions outside the scope of corridors. The results build on the notion that the type of agglomeration economy in combination with the structure of the economy matters for prospects of structural economic growth in different regions. In this way, the analysis not only contributes to enhancing the empirical scrutiny of the corridor concept in EU transport policy, but also provides new insights into how corridors contribute to regional economic growth. We find only limited evidence for a corridor effect across European regions on productivity and employment growth externalities. Instead, we find a large degree of spatial heterogeneity interacting with corridors—a heterogeneity that has been little recognized in EU policies. We suggest that recent attention to place-based development strategies may accord well with the kinds of agglomeration effects related to corridor development observed in this study.  相似文献   
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The rich corpus of material produced by the anthropologists of the Rhodes Livingstone Institute (RLI) has come to dominate our understanding of Zambian societies and Zambia's past. The RLI was primarily concerned with the socio‐cultural effects of migrant labour. The paper argues that the anthropologists of the RLI worked from within a paradigm that was dominated by the experience of colonial conquest in South Africa. RLI anthropologists transferred their understanding of colonial conquest in South Africa to the Northern Rhodesian situation, without ever truly analysing the manner in which colonial rule had come to be established in Northern Rhodesia. As such the RLI anthropologists operated within a flawed understanding of the past. The paper argues that a historical paradigm of colonial conquest that was applicable to the South African situation came to be unquestioningly applied by anthropologists to the Northern Rhodesian situation, and discusses what the consequences of this paradigm are for our understanding of Zambian history.  相似文献   
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This paper extends recent developments in regional growth modeling that use spatial regime switching functions to a count regression model of firm location events. The smooth parameter count model (SPCM) allows for a parsimonious parameterization of locally varying coefficients while simultaneously attending to excess‐zero count events. An empirical application examines natural gas establishment growth between 2005 and 2010. The smooth parameter model appears to outperform a standard zero‐inflated count model. The SPCM may be extended to the location analysis of other industries with the identification of transition variables related to the supply or demand oriented cost structure of the sector.  相似文献   
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