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51.
Methodological advancements in geoarchaeology and spatial and chronological modeling are opening new avenues to interpreting large coastal shell-bearing sites. We document the developmental histories of two such sites around Prince Rupert Harbour, Canada, using systematic percussion coring, intensive radiocarbon dating, and 3D surface mapping with Total Station and LiDAR. We also re-analyze a third site (Boardwalk/GbTo-31) excavated and radiocarbon dated in the 1960s, 1970s, and early 2000s using archival field notes, site maps, and stratigraphic profiles georectified using LiDAR. We map the natural landform beneath the sites and document the degree to which people physically modified landforms through the deposition of massive shell accumulations. We model site development through time and space and use accumulation rates and OxCal modeling to test for intentional deposition events. All three sites demonstrate complex and heterogeneous occupation histories. At each we identify instances of very rapid deposition that effectively terraced and extended parts of the natural landform to create places for constructing houses, though these episodes take place within longer histories of slower quotidian deposition. The anthropogenic modifications to the coastline in this area are the result of these mixed processes associated with long histories of occupation.  相似文献   
52.
The quick and accurate identification of post-earthquake rescue objects can minimize the casualties and property loss caused by earthquakes. With the rapid development of remote sensing technology, rescue objects can be identified through high-resolution remote sensing images. There are two main categories of approaches to identify rescue object through high-resolution images: automatic extraction by a computer and visual judgment by professionals. Although results can be obtained quickly by using automatic extraction, the accuracy of the results is unacceptably low. For visual judgment, the large demands for time and professionals restrict its wide practical application. In this study, we introduce crowdsourcing into the identification of post-earthquake rescue objects. First, we integrate the advantages of the computer and crowdsourcing, which means that the computer takes advantage of the speed of information processing, while crowdsourcing makes full use of human recognition capabilities. Second, we take visual judgment tasks out of the hands of professionals and entrust the tasks to workers in a crowdsourcing platform. Not only are the human resources infinite, but we can also improve the efficiency of identifying rescue objects. Third, we propose a crowdsourcing model that improves the quality of the results and saves human resources. Finally, experimental results demonstrate that our solution is feasible.  相似文献   
53.
ABSTRACT

To assess tourist motivations at the battlefield site on Kinmen Island of Taiwan, an empirical investigation was conducted. From a convenience sample, we collected 437 effective responses of respondents including domestic and international tourists with different cultural background in Kinmen. The structure of motivation was first examined via factor analysis. Then ANOVA analysis was applied to address the influence from demographic aspects such as gender, age, and nationality. Our results show that personal, spiritual, experience, physical, and emotional perspectives are five major sources of motivations. More importantly, age and nationality are confirmed to be two major dimensions to segment tourists in the context of battlefield tourism. Tourists with older age have higher motivations toward the battlefield site in comparison with young tourists. In addition, tourists with different cultural background based on different nationalities are significantly motivated by various motivational factors. The example of Kinmen contributes theoretically to a better understanding of the motivational attributes in a battlefield site, and how they represent a basis for increasing tourist perceptions. The motivational mechanisms and factors explored in this case can be incorporated into marketing strategies. Additionally, our results also provide a viable basis for the tourism authorities concerned to reevaluate the essence of its tourism industry in the context of battlefield resources and attractions.  相似文献   
54.
Indigenous women continue to experience a disproportionately higher burden of cervical cancer than non‐Indigenous women in Australia. The National Indigenous Cervical Screening Project used probabilistic record linkage to combine population‐based administrative databases and identify Indigenous women on Pap Smear Registers. This study aimed to quantify the spatial variation by local government areas (LGAs) for Indigenous and non‐Indigenous women in Queensland in cervical screening participation rates and related outcomes. Empirical Bayes local geostatistical smoothing was performed to reduce the likelihood of spurious variation between small areas. The cohort included 1,091,260 women (2 per cent Indigenous) aged 20 to 69 with 2,393,708 Pap smears between 2006 and 2011. Indigenous women had smoothed LGA‐specific 5‐year participation rates (interquartile range (IQR) 38.9–53.3 per 100 eligible women) consistently lower than non‐Indigenous women (IQR 80.7–85.3). The non‐overlapping confidence intervals of these rates suggest that the Indigenous differential was significant. Compared with Indigenous women, non‐Indigenous women had consistently lower and more stable prevalence rates of histologically confirmed high grade abnormalities (IQR 8.0–10.1 versus 15.0–21.3 per 1,000 screened women). Although the LGA‐specific rates also suggest that a higher proportion of non‐Indigenous women were followed‐up within two months of an abnormal screening result, the wide confidence intervals for these estimates limit our ability to draw definitive conclusions about spatial patterns for this outcome. These findings highlight the importance of continued monitoring and ongoing efforts to identify drivers of these patterns and develop effective strategies to improve participation and potentially reduce the cervical cancer burden among Indigenous women.  相似文献   
55.
玉门花海毕家滩出土的《晋律注》是裱糊在棺板外侧的纸本文书,因埋藏环境复杂及年代久远等各种原因,文物整体保存状况极为不佳。棺板存在残缺、断裂等多种病害,而外侧的纸本文书降解更为严重,已达到触之即粉的状态。为了使文物的完整性得以体现及能够得达到展陈的基本要求,在对棺板木材进行种属鉴定及特征分析的基础上,在文物保护基本原则与理念的指导下,对棺板进行了病害调查、清洗、粘接及加固,对外侧文书进行了内容识读、原料种类鉴定。经过保护处理使得棺板的整体性得到了体现,达到了展陈的基本要求。原料分析结果显示外侧的纸本文书为皮浆纤维,因此该文书是目前为止出土为数不多的魏晋时期以皮浆为原料的纸质实物,这对甘肃河西地区造纸原料发展的研究提供了珍贵的资料。  相似文献   
56.
建于南宋嘉定六年(公元1213年),位于浙江省义乌市的古月桥是折边拱桥这种桥梁发展过渡形式中不可多见的典型实证,具有极高的历史、科学、艺术、文化和社会价值。为了明确古月桥目前的状态,分析其主要威胁及病害原因,判断结构稳定性,进而制定有针对性的修缮方案,采用多种科技方法对古月桥进行了勘察和综合判断。面对桥身残破的现状,工作组采取了三维激光扫描、微观实验、结构分析等多种科技方法综合勘察,不仅较为清晰的地了解了古月桥的病害威胁,也分析了其背后致因及相互之间的联系;最终对古月桥稳定性及保存状况做出了综合判断。上述多种方法的应用,不仅相互印证了勘察结论,也为后续保护工作提供了重要的依据。  相似文献   
57.
This article shows that, in the study of immigrant integration policy in the U.S. states, it is critical to report data and coding decisions for individual laws. This analysis uses an updated and public database of law‐level decisions, which includes 2,703 legislative actions recorded by the National Conference of State Legislatures from 2005 to 2016. These data are used to estimate models of aggregate state policy activity in a variety of ways: as a single continuum of policy balance versus separate models of welcoming and hostile, lumping all policy subareas together versus analyzing a specific subarea, and lumping all years together in one cross section versus panel analysis. The results in these models differ enough to indicate that reporting codes for individual‐level laws is absolutely essential so that each researcher easily can construct the measure that fits his or her theoretical framework best.  相似文献   
58.
Al‐Khafaji is a central and well‐known point on the early third millennium BC map of the UNESCO World Heritage Site of Bat, in the Sultanate of Oman. For years, Kasr al‐Khafaji (“Tower 1146”) has been understood as an Umm an‐Nar (ca. 2800–2000 BCE) monument standing amid a contemporary village. However, recent excavations by the Bat Archaeological Project (BAP) reveal that the entirety of the known site—monument(s) and settlement—is situated on an anthropogenic clay mound that elevated it meters above the surrounding landscape. This paper presents the results of BAP's recent excavations, emphasising the social spaces created by architecture of various functions and scales. It also considers the implications that this new interpretation of al‐Khafaji may have for how the relationship between Umm an‐Nar towers and settlement should be understood. The paper closes with a discussion of Umm an‐Nar tower function and social meaning, concluding that the Khafaji monument(s) likely served a symbolic and possibly performative role in Umm an‐Nar society that was perceived as separate from Umm an‐Nar settlement.  相似文献   
59.
In the late 1980s, a collaborative effort between Harvard University’s Lower Mississippi Survey and Tulane University’s Center for Archaeology launched a study examining the causes and consequences of subsistence change in the Lower Mississippi Valley. The Osceola Project contributed the first formal study of late prehistoric faunal remains within the Alluvial Plain, becoming the standard against which all subsequent Coles Creek faunal assemblages have been measured. Recent evidence recovered from three sites located in the Eastern Uplands presented the opportunity to compare and contrast vertebrate subsistence in these two distinct physiographic regions. We hypothesize that a clear distinction exists between lowland and upland Coles Creek procurement strategies. This article evaluates this claim by examining species diversity, spatial patterns, and temporal trends evident within an eight-site sample. The results suggest that the primary factor influencing Coles Creek fauna procurement was the immediate environment, and that the composition of Late Woodland period diets may be a reflection of efficiency of effort rather than food access or scarcity.  相似文献   
60.
The paper investigates the patterns of technology and knowledge of the regions. The first aim of the paper is to determine cluster templates at the national level. The second aim of the paper is to investigate the technology and knowledge composition of the regional highpoint clusters. The paper identifies patterns of industrial linkages to define cluster templates and regional highpoints. The second part uncovers regional distributions of technology and knowledge. The data comes from Turkey’s 2012 input–output table. The location quotients use industrial employment statistics from the Turkish Statistical Institute. The technological and knowledge intensity classification follows Eurostat. The findings reveal 10 cluster templates in Turkey. Spatial distribution of the highpoint clusters reveals that most regions contain highpoint clusters with low technology and low knowledge-intensive sectors. The results reveal that highpoint clusters in Turkey’s regions contain industries whose technologies do not demand high skills, knowledge and sophistication. Limited existence of high-tech industries and low knowledge intensity in Turkey’s industry composition is a limiting factor for transition to high value-added manufacturing. Special emphasis should be directed towards constructing regional advantage, given the current levels of technology and knowledge intensity.  相似文献   
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