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71.
ABSTRACT

Cities can be considered as engines of the knowledge-based economy, because they are the primary sites of knowledge production activities that subsequently shape the rate and direction of technological change and economic growth. Patents provide rich information to analyse the knowledge specialization of specific places, such as technological details and information on inventors and entities involved. The technology codes attributed at the level of individual patent documents can be used to indicate the diversity and scope of the knowledge claims underlying a specific invention. In this study we introduce tools for portfolio analysis in terms of patents that provide insights into the technological specialization of cities. The mapping and analysis of patent portfolios of cities exploits data derived from the Unites States Patent and Trademark Office (USPTO) and dedicated tools (at https://leydesdorff.net/software/patents/). The results allow policy makers and other stakeholders to identify promising areas of further knowledge development, including smart specialization strategies.  相似文献   
72.
国家级新区的空间生产与治理尺度建构   总被引:2,自引:0,他引:2  
殷洁  罗小龙  肖菲 《人文地理》2018,33(3):89-96
国家级新区是近年来备受瞩目的新国家空间类型。首先,论文从新国家空间的理论视角出发,认为国家级新区是我国新时期国家空间选择偏好从城市内部空间转变为城市群体空间的产物,是国家为参与全球城市竞争和承接全球产业转移而在城市-区域尺度上构建的新地域组织。其次,论文研究了国家级新区的空间生产,发现其在微观尺度上具有多尺度行政区跨界联合的特征,并且表现出自上而下和自下而上相结合的机制。然后,基于空间生产与尺度重组的密切联系,论文同时研究了国家级新区治理建构的情况。通过分析不同类型的国家级新区空间治理结构,发现影响国家级新区尺度重组进程的关键因素,是新尺度与原有行政区划的耦合程度。最后,在上述研究的基础上,论文对国家级新区未来治理改革提出了政策建议。  相似文献   
73.
苏静  孙九霞 《人文地理》2018,33(6):118-124
从旅游影响相关研究中存在"整体性"缺失和研究假设缺陷等问题出发,以共同体为研究视角和对象,以岜沙苗寨为案例展开历时性研究,采用定性分析方法,研究发现:首先,共同体的多元化是旅游发展后社区空间生产内在机制所发生的主要改变;其次,旅游发展后传统的社区共同体规则对社区空间生产路径起着保护作用,减弱了旅游对其传统文化的影响。最后:旅游作为导致民族社区变迁的外部原因之一,在逐渐加快其变迁路径的改变,对于在旅游发展的同时如何引导多元共同体规则的统一,从而保障其传统变迁路径的稳定,将是后续研究关注的重点。  相似文献   
74.
Recent ceramic analysis: 2. Composition,production, and theory   总被引:2,自引:0,他引:2  
This is the second of two articles reviewing the burgeoning literature on recent ceramic analysis. The first (Journal of Archaeological Research, Vol. 4, No. 2, 1996) (pp. 133–163) surveyed functional and stylistic analyses and pottery origins. This article reviews compositional investigations and studies of pottery production, both of which have flourished in a period of heightened examination of specific techniques, assumptions, and concepts, such as standardization. In addition, researchers are exploring new analytical methods as well as approaches to ceramic theory. The review closes with a series of observations and critiques of current directions.  相似文献   
75.
The recent archaeological campaign (regional site survey and excavations at the mound complex of Akumbu) has demonstrated that the Méma, a dry Sahelian region with a scattered population, was intensively occupied during the Iron Age. This intense occupation, certainly associated with better environmental conditions, extends back to the Late Stone Age. During the regional survey more than 100 Iron Age sites and nearly 30 Late Stone Age sites were identified; their size, surface material and features, and location on geomorphological zones were recorded. A series of radiocarbon dates spanning the fourth to fourteenth centuries ad obtained from the excavations at the Iron Age mound complex of Akumbu and a preliminary analysis of the pottery from both the excavations and the survey permitted the determination of a broad chronology of occupation. Numerous slag heaps (associated with smelting furnace remains) found during the survey and imported goods uncovered during the excavations at Akumbu indicate that both iron production and long-distance trade played an important role in the Méma economy.
Résumé Une campagne archéologique (reconnaissance et fouilles) exécutée en 1989–1990 a montré que le Méma, une région sahelienne de grande sécheresse à population actuellement éparse, était intensément peuplé pendant la période de l'Age du Fer. Cette intense occupation, certainement liée à de meilleures conditions climatiques, semble remonter à la période du néolithique. Au cours de la reconnaissance, conduite à l'échelle régionale, plus d'une centaine de sites datant de l'Age du Fer et environ une trentaine de sites néolithiques furent identifiés, enregistrés et décrits en termes de leurs dimensions, matériels et caractéristiques de surface, et environnement. Une série de datations au radiocarbone, obtenue lors de la fouille sur le complexe de buttes d'habitat de Akumbu, dans la partie ouest du Méma, indique une occupation s'étendant du quatrième siècle au quatorzième siècle de notre ère. La découverte d'imposants amas de scories, associés à des restes de hauts fourneaux, et objets exotiques trouvés lors des fouilles à Akumbu, attestent que la production de fer et le commerce à longue distance jouaient tous les deux un important rôle dans l'économie du Méma.
  相似文献   
76.
The Innis model of staple production has been used as the framework for evaluating many Canadian resource trades. This paper argues that Japanese resource trade differs from that with Europe or the United States and that the distinct set of institutional arrangements governing Japanese resource trade requires the modification of the Innis model to recognize this new form of Canadian staple production and trade. The one billion dollars per annum Canada-Japan coal trade provides a detailed case study of the institutional complexity of Japanese resource trade, as revealed through corporate strategies, trade intermediaries, equity investment, loan arrangements, export contracts, and public infrastructure. Minority Japanese investments in joint ventures replace the dominant role of foreign capital in earlier versions of the staples model. The role of finance capital is highlighted by Japanese loans typically exceeding equity investments in size. The high transaction cost of negotiating hundreds of contracts is reduced through the use of sogo shosha (Japanese general trading companies) as intermediaries. Unequal relations are demonstrated by the greater risk borne by local investors as private firms provide equity and public institutions invest in infrastructure. The Quintette mine in northeast British Columbia highlights these risks. Overall, the complexity of the Japanese supply system reduces the bargaining power of any single supplier. However, the stability promoted by the security objectives of the Japanese supply system leads to long-term trading relations that can provide corporate cash flows and maintain community viability during cyclical downturns in the industry. Le modele d'lnnis sur la production des matieres premiéres a servi a analyser les effets du commerce des ressources naturelles au Canada. Le texte maintient que les echanges de ressources naturelles avec lelapon different de ceux qui lient le Canada aux Etats-Unis et à l'Europe, et que la particularité des structures servant à administrer le commerce avec le Japon nécessite une modification du modele d'lnnis vouéà l'analyse des effets de ce commerce. Le texte se penche sur le commerce du charbon entre le Canada et le Japon, dont la valeuratteint 7 milliard$ parannée. Cette étude de cas va permettre de saisir la complexité institutionnelle des échanges ayant trait aux ressources naturelles avec le Japon, perceptible dans les stratégies des corporations, la présence d'intermédiaires, les investissements, les modalités de prêts, les contrats d'exportation et les infrastructures. Les investissements minoritaires des japonais dans des entreprises conjointes remplacent le rôle dominant des investisseurs étrangers caractéristique des modeles antérieurs d'extraction des matieres premieres. Le rôle accru du capital financier est souligné par les prêts des japonais qui exddent habituellement leur achat d'actions. Les hauts cocits transactionnels lie's à la négociation de centaines de contrats est réduit par l'intermédiaire de sogo shosha (compagnies japonaises se spkcialisant dans les échanges entre corporations). Nous constatons l'exis- tence de rapports inégaux olj le gros des risques est assumé par les investisseurs locaux et les agences gou- vernementales qui assurent la mise en place d'infrastructures. La mine Quintette dans le nord-est de la Colombie-Britannique illustre bien ces risques. La complexité du systeme d'approvisionnement japonais réduit les atouts dans les négociations des fournisseurs pris individuellement. It demeure que la stabilité, qui découle des objectifs d'approvisionnement a long terme des japonais, permet d'établir des rapports d'échange durables qui garantissent aux entreprises des revenus persistants ainsi que la prospérité des localites olj se trouvent les opérations d'extraction. Ces localités se trouvent alors soustraites aux effets des cycles économiques.  相似文献   
77.
Current issues in Chinese Neolithic archaeology   总被引:7,自引:0,他引:7  
Every year archaeologists in China discover numerous rich sites demonstrating significant regional variability in Neolithic cultures, primarily from about 6500 B.C. to 1900 B.C. This paper discusses a topic not covered in detail in current or forthcoming publications, the origins and development of agricultural systems. Recent fieldwork in both northern and southern China suggests that initial steps toward settled agricultural villages began circa 11,000 B.P. I review evidence for the cultivation of millet, rice, and other plants as well as animal husbandry in different regions of China. There are several later Neolithic sites in northern China with evidence for rice cultivation. I suggest how future research projects can investigate regional variation and change over time in subsistence and settlement during the Neolithic Period.  相似文献   
78.
The petrographic and geochemical analyses of 130 Late Chalcolithic 3 (LC3, 3800 bce ) to Early Bronze Age IIIB (EBAIIIB, 2000 bce ) ceramics from Arslantepe and the Malatya Plain in the Eastern Anatolian Upper Euphrates have identified critical differences in raw material procurement and paste preparation, reflecting typological, chronological and cultural changes. Based on these differences, distinct modes of production that correspond to phases reflecting significant social, economic and political changes were recognized. In particular, the interruption of the centralization process and the establishment of mobile groups during EBAI (3000–2900 bce ) were accompanied by the exploitation of new sources.  相似文献   
79.
In this paper we present the results of surveys carried out in February 2016 along a palaeo‐drainage system near the village of Bisyah. We report first on the geological prospection, which was our main goal, and then present our discovery of the only known localities in north Oman of large Kombewa flake production (>10 cm up to 20 cm). Among the scatter of artefacts, we found cores and large Kombewa flakes with two opposed bulbs of percussion, a technology that had not been known in this region until now. In spite of the local features, the typo‐technological traits of the artefacts suggest that at least part of them resemble in some way the Acheulean techno‐complex, but there are still many questions remaining on the age of these artefacts.  相似文献   
80.
This article investigates the dichotomy within research on sexuality between the desiring body of the informant on the one hand and the non-desiring body of the researcher on the other. Despite earlier calls to acknowledge and include the eroticisms of the researcher, accounts where the desiring researcher’s body is a central focus remain exceptions to the rule. The main goal of this intervention is to investigate why the absence of the lusty researcher’s body seems to endure. I will first explore some of the reasons researchers might feel inhibited to self-disclose their desires, to continue with uncovering some of the techniques used to sustain the cover of the asexual, disembodied researcher. Afterwards, I will discuss my own experiences as a (junior) researcher in the field, mainly my own discomfort and embarrassment to be perceived as a desiring woman-researcher, and trace how this has informed my own research trajectory. I conclude by suggesting that writing down our negotiations between the validity of our research versus how much we are willing to self-disclose might be a first step towards an improved inclusion of lust and desire in sex research.  相似文献   
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