Does Practice Make Perfect? Craft Expertise as a Factor in Aggrandizer Strategies

The focus of this article is on exploring craft expertise and its potential as a factor in aggrandizer strategies. It is argued that there are elements of natural aptitude which enabled certain individuals to excel at flintknapping, allowing them to create objects of exceptional size and beauty in acts of elaborate knapping. Practice alone will enable an individual to reach a certain level of proficiency, but only practice in combination with ability can result in world-class performance. If, as is argued, native ability in some domain is a rare commodity, then harnessing it and developing it through practice would provide an opportunity for a potential aggrandizer to control prestige goods and accrue social capital. In situations where raw material, knowledge, and know-how are ubiquitous, as may have been true for flint technology in southern Scandinavia during the Late Neolithic, this might be one of few means available for a would-be aggrandizer to control prestigious goods.     

良渚文化石器装柄技术的重要物证

新石器时代多数石器需要安柄使用,但木柄之类的有机质遗存极难保存。由于南湖等地具备特殊的埋藏环境,良渚文化带柄石器的实物竟有成批出土。本文首次公布这些珍贵的装柄石器实物资料,并系统介绍了良渚文化带柄石器出土的历史和现状,对带柄石器的安装和使用进行了初步探讨,相信对良渚文化石器的研究能产生推动作用。     

Reconnaissance of Prehistoric Sites in the Red Sea Coastal Region of the Sudan,NE Africa

This paper reports results of a recent Stone Age-focused archaeological survey in the Red Sea coastal region of the Republic of Sudan, northeast Africa. Bifaces (handaxes) are the most conspicuous artifact class encountered during the survey and are characteristic of the Acheulean technocomplex. Other recorded artifact types include points, scrapers, and prepared core products referable to the Nubian and recurrent Levallois methods. Most of the artifact-bearing localities lie landward—outside of the coastal margin—thus, the evidence does not signify direct coastal adaptation per se. Our preliminary findings suggest that multiple Pleistocene-age hominin settlements tied to a terrestrial niche existed in the region. The western margin of the Red Sea occupies a pivotal location, linking the Horn of Africa and the Levant, two vital regions in human evolutionary research. Thus, the Stone Age data from the Sudan region has direct relevance for assessing hominin dispersal routes out of Africa.     

Why Are Clovis Fluted Points More Resilient than Non‐Fluted Lanceolate Points? A Quantitative Assessment of Breakage Patterns Between Experimental Models

For decades, archaeologists have wondered whether the Clovis Palaeoindian (c.11 600–10 800 radiocarbon years bp ) practice of ‘fluting’, a flake removal technique that creates a distinctive shallow channel extending from the base of the projectile point towards the tip, bestowed a functional advantage over non‐fluted projectile points. Using analytical modelling and static engineering experiments, Thomas et al. (2017) found that points that more effectively redistribute stress and relocate damage can absorb significantly more energy, last longer and remain intact relative to points that do not experience these phenomena. In general, stress redistribution and damage relocation is significantly more likely to occur in fluted points, as opposed to non‐fluted points, suggesting that fluting acts as a ‘shock absorber’. Here, we present a comparative quantitative assessment of breakage patterns between Thomas et al.’s (2017) experimental points that shows those experiencing stress redistribution and damage relocation were also able to significantly better resist breakage, and to incur non‐catastrophic breaks, than points that less effectively redistribute stress and relocate damage. This more beneficial breakage pattern explains the material advantages provided by stress redistribution and damage relocation, and hence the potential motivation for fluting. This does not preclude the possibility that the process of fluting was accorded significance beyond its possible utilitarian value. Additional tests will be necessary to further resolve the ‘shock‐absorbing’ capabilities of fluting.     

Stone Tool Forms and Functions: A Morphometric Analysis of Modern Humans' Stone Tools From Song Terus Cave (Java,Indonesia)

Stone industries from the beginning of the Holocene of South‐East Asia are difficult to characterize typo‐technologically. We apply modern morphometrics to informal pieces to complement usewear analysis and gain a better understanding of the relation between forms and functions. Both the log shape ratio (LSR) based on linear measurements and elliptical Fourier analysis (EFA) based on 2D outlines are used to analyse a sample of 2372 stone artefacts from Song Terus cave (Java, Indonesia). The results show that no specific form corresponds to a specific function or vice versa. Nevertheless, among used artefacts, EFA highlighted several shape tendencies.     

关于网络时代旅游业发展的若干思考

本文着重研究网络技术对旅游业发展的深刻影响,深入思考旅游业如何适应网络技术条件下的宏观经济社会环境,通过自身的重新定位和经营管理方式的转变,实现快速持续增长。     

Scanning electron microscopy of dry hide working tools: The role of abrasives and humidity in microwear polish formation

This paper presents the results of the scanning electron microscopy of a series of experimental tools designed to investigate the role of abrasive agents and humidity in microwear polish formation. The tools—35 end scrapers—were divided into four groups and used to work dry hide. It was found that both humidity and abrasive agents are two basic variables in the development of the microwear polish.     

Trade Fairs as an Export Marketing and Research Strategy: Results from a Study of Korean Advanced Machinery Firms

Manufacturers pursuing information on potential customers in distant, dynamic markets confront myriad obstacles. To address this, many firms attend international trade fairs in order to market their products, to meet with prospective customers, and to tap into buzz related to potential international opportunities. In many ways, moreover, such exhibitions can serve as short‐term agglomerations of same‐industry activity, particularly important for producer–user interface geared towards innovation. The goal of this paper is to explore how Korean machine tool manufacturers utilise a major global trade show in Seoul to minimise the difficulties associated with accessing a global customer base, inclusive of their activity at this show geared towards innovation. Evidence from firm‐level surveys and interviews suggest that the amount of importance placed on trade fair attendance as part of a firm's internationalisation strategies is related to export growth. Additionally, a new insight generated is that firms that participate in trade shows as part of their innovation process also demonstrate higher rates of export intensity. Finally, we may be witnessing newly discovered, technology‐driven, symbiotic relationships between online portal sites, vendors, and potential customers at these trade fairs, where virtual services are nonetheless augmented by a need for a continued onsite presence at these exhibitions.