Chang'an (now Xi'an) was the capital of the Western Han Dynasty and the starting point of the Silk Road. In the light of the importance of Chang'an as the centre of politics, economy and cultural interaction, the overarching question proposed in this paper is focused on its role in the mirror production and distribution network during Han period. On the basis of chemical and lead isotopic analyses of 34 Han mirrors, this paper discusses the potential existence of a mirror production centre in Chang'an. Meanwhile, a comparative study with mirrors uncovered from the south‐western frontier and from Central Asian and North‐East Asian countries offers new insight into these related issues. 相似文献
HUANG D. & NEL A., June 2017. New fossil damsel -dragonfly clarifies the phylogenetic position of the small Jurassic family Juraheterophlebiidae (Odonata: Epiproctophora). Alcheringa, 41, 536–542.
A nearly complete specimen of Juraheterophlebia cancellosa sp. nov., the third species of the family Juraheterophlebiidae, is described from the Middle–Late Jurassic of China and shows the exact structure of its forewing discoidal space. As a consequence, this family is restored, separated from Erichschmidtiidae, and its diagnosis amended. It is transferred from Heterophlebioptera to Stenophlebioptera, the first clade being now only known from the Early Jurassic. Erichschmidtiidae includes the sole species Erichschmidtia nigrimontana, and this family is now considered of uncertain systematic position.
Diying Huang [dyhuang@nigpas.ac.cn] State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210,008, PR China; André Nel [anel@mnhn.fr] Institut de Systématique, Évolution, Biodiversité, ISYEB-UMR 7205-CNRS, MNHN, UPMC, EPHE, Muséum national d’Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie F-75005, Paris, France.相似文献
In examining the development of the International Geographical Union’s (IGU) Commission on Gender and Geography over the last three decades, we first highlight the advances made to establish visibility for gender studies within the IGU and create structures for more inclusive feminist geographies across national, disciplinary and other borders. Given that many of the early and most widely-known advances were largely within Anglophone contexts, we then discuss the ongoing challenges and possibilities for advancement faced by feminist geographers who teach, research, and write on gender in other locations. While some of these challenges (such as a continued lack of recognition for gender studies, paternalistic hierarchies, and specific government regimes) are country-specific, others are related to broader issues of neoliberalism and corporatization, and inequities in academic publishing. Clearly, continued efforts are needed to strengthen the agenda for gender to promote more inclusive histories, practices and processes of gender/feminist geography in research, teaching and application in the international arena. 相似文献