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61.
Accurate interpretation of the cause and timing of bone breakage is essential for understanding the archaeological record. However, many variables potentially influencing break morphology have yet to be systematically explored. Focusing primarily on hammerstone breakage, we introduce new analytical methods for comparing fracture angles using the absolute values of the angle from 90°. We systematically control for intrinsic variables such as taxon, skeletal element, limb portion and skeletal age. We also compare experimental assemblages of femora broken by hammerstone and spotted hyena (Crocuta crocuta). We show that fracture angles are influenced by breakage plane, skeletal element and limb portion. While the latter two have been suggested before, this is the first time the differences have been quantified. We suggest that researchers stratify their assemblages by these variables if they are using fracture angles in analyses. At the assemblage level, hyenas created more oblique fracture angles on oblique breaks than did hammerstones.  相似文献   
62.
Although the issue of the out-of-plane response of unreinforced masonry structures under earthquake excitation is well known with consensus among the research community, this issue is simultaneously one of the more complex and most neglected areas on the seismic assessment of existing buildings. Nonetheless, its characterization should be found on the solid knowledge of the phenomenon and on the complete understanding of methodologies currently used to describe it. Based on this assumption, this article presents a general framework on the issue of the out-of-plane performance of unreinforced masonry structures, beginning with a brief introduction to the topic, followed by a compact state of art in which the principal methodologies proposed to assess the out-of-plane behavior of unreinforced masonry structures are presented. Different analytical approaches are presented, namely force and displacement-based, complemented with the presentation of existing numerical tools for the purpose presented above. Moreover, the most relevant experimental campaigns carried out in order to reproduce the phenomenon are reviewed and briefly discussed.  相似文献   
63.
64.
Book-in-a-box to Xbox is a discussion of developments in the material form of contemporary textual objects and of the impact this has on user/reader experience. The article formulates itself as a contemporary book history, situating the texts in question within the broader sphere of digital culture, and analyses textual function, reception, form and user interaction, presenting a cultural theorising of contemporary textual objects. The article conducts these discussions via a consideration of Marc Saporta's Composition No. 1 (a key example of materially experimental literature); recent developments in e-reading and the implications of these developments; designing interactivity in massively multiplayer online gaming; and emerging forms of sociality, or shared experience, in virtual reading and playing communities.  相似文献   
65.
Researchers use a variety of target materials, and sometimes combinations of materials, in their archaeological experiments to examine thrust-spear or projectile penetration, impact angle, durability, and other issues involving prehistoric hunting weaponry. This variety of target materials is beneficial to archaeological science in several ways, but it may also hinder the comparison of results because many of these target materials do not necessarily share similar physical properties. Here, we assess the penetration properties of four different target materials—store-bought meat, clay, and two types of gelatin—via static penetration tests of a modern broadhead-tipped arrow and a stone-tipped projectile attached to an Instron Universal Materials Tester. Our analyses of load-deflection curves, peak load, and work energy demonstrate how the four target materials are similar in some ways but different in others, which suggests that researchers may strategically employ one or several depending on the question asked or hypothesis tested.  相似文献   
66.
针对近年来祖国大陆海外华文教育快速发展带来的挑战 ,台湾当局在延续其历年经验性做法的基础上 ,以满足海外侨教现实需要为目标 ,注重以创新思维拓展侨教工作 ,采取各种更加灵活和有力的措施 ,多方面多渠道地扶持海外侨教工作。本文分析了台湾现阶段扶持海外侨教的主要措施 ,论述了其可资借鉴与参考之处。  相似文献   
67.
旅游管理专业(本科)的课程体系和教学方法探讨   总被引:16,自引:0,他引:16  
旅游管理专业(本科)是新修订的专业目录中唯一的旅游高等教育专业.本文主要探讨了在四年制本科教育的框架下,旅游管理专业的课程体系及其教学方法.  相似文献   
68.
Summary

Ian Hunter's early work on the history of literature education and the emergence of English as school subject issued a bold challenge to traditional accounts that have in the main focused on English either as knowledge of a particular field or as ideology. The alternative proposal put forward by Hunter and supported by detailed historical analysis is that English exists as a series of historically contingent techniques and practices for shaping the self-managing capacities of children. The challenge for the field is to advance this historical work and to examine possible implications for English teaching.  相似文献   
69.
华耀军 《神州》2011,(12):54-54
论述高职院校会计课程改革的方案和目标,课程的实施,实验课的建设,教学方法的改革等,高等职业教育要注重提高学生的能力,培养操作实用型的会计人材。  相似文献   
70.
陈漫 《神州》2011,(3X):166-166,169
钢琴的学习除了提高艺术修养外还能通过弹奏使手指灵活并缓慢大脑老化,因此颇受成年人的喜爱,但如何让成年人学钢琴的热情保持下去,笔者认为启蒙教学任重而道远,本文谈谈对成人钢琴启蒙教学的看法。  相似文献   
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