Bone frequencies: differential transport, in situ destruction,and the MGUI

Human transport of bones with high food values, and destruction of bones with low density values are the traditionally invoked explanations of the frequencies of bones in archeological contexts. The manner in which these two explanations have been used suggests archaeologists assume the explanations to be independent of one another. The transport explanation is operationalized as the modified general utility index (MGUI) of Binford, and the destruction explanation is operationalized with measures of bone density. Statistical correlation of the MGUI with bone density, while weak, indicates that many high utility bones have low density values while many low utility bones have high density values. Because low density bones tend to be destroyed more readily than high density bones, inferences of human utility strategies derived from bone frequencies and based on the MGUI may be inaccurate. The utility strategies suggested by three archaeofaunas are compared to bone density, and two of these faunas are shown to potentially be the result of differential destruction and not human transport as measured by the MGUI.     

“Numbers of individuals” in faunal analysis: the decay of fish bone in archaeological sites

Although quantifying animal remains in archaeological sites is best done by way of bone counts, there are several mechanisms that can cause distortions in the relative frequencies of different species. Some of these problems can be avoided by relatively minor modifications to standard methods, but the situation where bones have decayed since deposition cannot be controlled by methods currently in use.To overcome this a new technique is proposed. This involves comparing the relative frequencies of different anatomical elements across a number of sites, so that the extent of the dispersion of the frequencies of different bone classes at a site can be used as a guide to the extent of attrition there. This approach is illustrated by application to fish bones from sites in New Zealand.     

语文阅读教学中学生想象力的培养

语文阅读是教学过程中很重要的一个环节,阅读过程对于培养学生的想象力具有独特的优势,文章试从激活文字、领悟内涵、凸显个性化解读等方面,对培养学生的想象力进行一些探讨。     

新教材背景下初中数学教学的实施

数学教学的核心是学生的再创造,让学生经历知识的再创造过程,培养了学生的创造性思维。学生从教师的教转向主动地学,在教师的指导下去建构数学知识,为学生能够顺利地用数学知识解决实际问题奠定了良好的知识基础。     

Excavations at Bishop's Street Without: 17th Century Conflict Archaeology in Derry City

Abstract

Excavations on this site, undertaken by Paul Logue for EHS: Built Heritage DOE: NI, produced evidence for at least two phases of occupation outside Bishop's Gate, Londonderry during the 17th century. This occupation came to an end with a phase of activity dated to the commencement of the Jacobite siege in A.D. 1689. Further evidence of that siege was uncovered in the form of a ravelin ditch 2.8 m wide and 0.57 m in depth, constructed in early 1689 to front Bishop's Gate. The extant remains of a sally port interrupted the ditch. A nearby larger ditch, scarped from the sloping ground outside Double Bastion, measured a maximum of 8.4 m in width and 1.4 m in depth. This larger ditch may have been part of efforts to improve the City defences in the wake of the 1641 rebellion. Further evidence of conflict archaeology was recovered in the form of lead shot, weapon furniture and flint gunspalls.     

旅游创造性破坏模型述评

旅游影响与旅游演化是旅游研究的重点与热点,论文对旅游影响与旅游演化领域近来发展的旅游创造性破坏模型进行了述评。在介绍创造性破坏的理论基础与社会背景之后,论文评述了旅游创造性破坏模型取得的新成果,如把旅游商品化与创新看作旅游影响与演化的主动力、发展阶段的多因子判断、指标变化的非线性、资本在旅游利益主体互动中的主导地位等,同时也对该模型在应用范围、阶段特征与划分、旅游影响与演化机制等方面的不足,并对其今后研究进行了展望。     

Can a preservationist ideology halt the process of creative destruction? Evidence from Salt Spring Island,British Columbia

For more than 50 years, rural municipalities across the developed world have struggled to redefine themselves in the face of declining primary sector employment. In some places, this struggle has led to the creation of landscapes that provide heritage‐seekers with tangible commodities and intangible experiences reflecting a by‐gone past. Recent research suggests that these post‐productivist heritage‐scapes may evolve into leisure‐scapes of mass consumption, if profit or economic growth are the key motives underlying development ( Mitchell and Vanderwerf 2010 ). This article questions whether a dominant ideology of preservation can prevent this scenario. We studied Salt Spring Island, British Columbia: (i) to determine if the island displays the characteristics of a heritage‐scape, (ii) to discover if a preservationist ideology has contributed to its current state, and (iii) to ponder if this state can be maintained, in light of recent regional and provincial discourse. Our analysis reveals that the creation, and maintenance, of this heritage‐scape has been guided largely by public discourse underlain by a preservationist ideology. This prolonged state, however, may be drawing to an end. Recent provincial directives to double tourist revenues suggest that local (and regional) discourse soon may be overshadowed by the province's mandate to promote economic growth. The response of local stakeholders will ultimately dictate the Island's ability to maintain its present state as a post‐productivist heritage‐scape.