汉代木胎鎏金银青铜瓶制作工艺探讨

年在山西打击文物犯罪专项行动中,追缴回一件汉代鎏金银青铜瓶,瓶内为一层木质内壁,是一件结合了木胎掏刻、分体铸造及鎏金银工艺的珍贵文物。 利用超景深视频显微镜对铜瓶表面及内层木胎进行表面形貌的显微观察,以获得制作过程遗留的微观痕迹;X射线探伤对铜瓶整体进行透视拍照,更准确地观察其内部构造;X射线荧光光谱分析技术对铜瓶外表面足部、腹部及颈部等关键部位进行合金成分分析,以确定其外表面装饰工艺,并以此还原其完整制作过程。结果表明,铜瓶为分体铸造工艺,流程为制模、制芯、制泥质外范、铸造、掏刻木胎、套装和鎏金银。铜瓶为上下两部分,中间以铜箍上子母扣的方式结合在一起;铜瓶本体材质为锡青铜,外表面金色部位为鎏金工艺,银白色部位为基于金层的鎏银工艺;瓶内的木胎为整块木材掏刻制成,而非拼接。 本工作选取了形制与工艺均较罕见的木胎鎏金银铜瓶,完整解释其工艺流程,结合青铜工艺发展史对研究结果进行印证,为此类工艺复杂且形制罕见的青铜酒器的保护修复提供了科学依据。     

长沙窑乳浊釉制瓷技术的科技研究

长沙窑是中国唐代著名外销窑口,早期烧制青釉产品、后期发展到烧制青釉彩瓷和乳浊釉彩瓷,成为当时中外文化交流阶段性总结的集大成者。而长沙窑广泛使用的乳浊釉,特别是乳浊白釉为其彩绘提供了重要的釉层,是长沙窑彩瓷能够大放光彩的基础之一。鉴于此,为研究长沙窑乳浊釉制瓷技术,以铜官窑遗址和黄泗浦遗址出土的长沙窑瓷片为研究对象,利用光学显微镜、能量色散X射线荧光光谱仪、扫描电子显微镜和分光光度计等多种仪器,对长沙窑胎体和釉层进行了测试,着重探讨和揭示了长沙窑乳浊釉瓷的胎体原料、釉层乳浊机理、釉层原料以及兴起原因,为全面认识长沙窑乳浊釉瓷的制釉技术来源和科技内涵提供科学依据。     

Change within the change: pregnancy,liminality and adventure tourism in Mexico

Abstract

Despite the growing number of pregnant women engaging in outdoor adventure activities, very few studies have explored pregnancy or the specific needs and challenges of pregnant women in tourism research. To fill this gap in the literature, we examine the participation of pregnant women in adventure tourism through the theoretical lens of liminality. Conceptualising pregnancy as a liminal stage in which women are ‘suspended’ between two statuses, opens diverse possibilities to delve into women’s experiences of embodiment, bodily image and control. In this sense, pregnancy is understood as an ‘internal change’, which adds specific challenges to women’s practice of adventure tourism, including bodily changes and different perceptions of risk-taking. Similarly, the context of adventure tourism provides an ideal space to reflect on liminal transitions and the ‘outside changes’ that pregnant women go through in the predominantly masculinised spaces that characterise this tourism segment. Semi-structured interviews were conducted with 35 Mexican women who actively pursue adventure tourism and who had engaged in these activities during at least one pregnancy. The analysis indicates the importance of norms and social expectations experienced by pregnant women when doing adventure tourism. The concept of the ‘rhizomatic body’ proved to be a valuable tool when looking at the social taboos, prohibitions and rules that apply to pregnant women in specific sociocultural contexts (in this case, Mexico). By reframing and reconceptualising pregnant women and their practice of adventure activities, the social construction of pregnancy is elucidated. Finally, the study contributes to the understanding of alternative models and experiences of being a woman in gendered spaces, while shedding light on relevant behavioural patterns among pregnant tourists and the sociocultural impacts of these patterns.     

Entropy vs. human ontogeny: the Shannon information measure; a reliable general indicator of human health?

ABSTRACT

A measure of health based on exact sciences is not considered by social sciences to evaluate human development. We propose the H measure of information of Shannon ([1948]. “A Mathematical Theory of Communication.” The Bell Systems Technical Journal 27 (3): 379–423, 623–656), renamed as H _cto , as a general indicator of human health which can be subsequently aggregated at any statistical level. Several advantages of H _cto are explained: (i) connections with thermodynamics and information theory; (ii) combination of physical and statistical elements; (iii) measurements of entropy and/or information depending on the reference point, and (iv) a collection of examples based on the scientific literature that supports the application of H _cto . Simplified graphical models of the ontogeny of health condition are also shown. The empirical feasibility of using H _cto is also analysed, by concluding that it could be a tangible reality in the near future.     

旅游跨文化学习中的主客互动——阳朔太极拳的教与学

中国传统文化的传播对于实现文化自信具有重要意义。本文关注了近年火热的“外国人赴阳朔学太极”现象，综合运用非参与式观察法、深度访谈法与文本分析法，以“身体符号”的意义变迁为研究脉络，探讨“外国人学太极”这一跨文化情境下的主客互动活动，分析外国人赴阳朔学太极的动因、互动过程与内在机制。研究发现：从互动媒介来看，身体作为符号在跨文化情境中发挥着重要的媒介作用，身体符号的意义也在跨文化互动中逐渐深化；从互动过程来看，不同主体的角色和观念以身体符号为媒介在跨文化互动中实现交互协商，由此加深主体对于自我的认知。人与人之间的学习型紧密联结强化了人与地方之间的关系。     

跨越地理边界的地方性食物——以广州流动群体的饮食消费为例

地方性食物原本被定义成在清晰的地理边界内生产的食物，是“本地人”抵抗极端商品化食物系统的有力武器，但以地理边界为中心的视角压抑了消费者身体的积极作用，也忽视了作为“外来者”的流动群体的在地饮食体验。基于对广州流动群体的日常饮食消费的深入考察，本研究发现：流动群体对跨越地理边界的故乡食物和广州本地食物主动赋予丰富的地方性意涵，构筑日常饮食“流动的地方性”。基于身体与食物的关系视角，本研究认为身体接触食物的契合感受以及与食物提供者的信任关系奠定了流动群体建构地方性食物的基本途径。区别于反抗式的地方性食物运动，流动群体把地方性食物嵌入在地生活，凸显多重的日常意义，主要表现在突破食物知识困境，缓解饮食焦虑，以及增进身体和地方的亲密关系。