The Geo-imaginaries of potential in Mexico's Burgos Basin

In this paper, we use the geo-imaginary analytic to show how actors utilized narratives of resource potential and speculative economic futures for the Burgos Basin in northeastern Mexico to affect a broader liberalization of the nation's hydrocarbon sector. Our research traces the history of the word “potential” as a discrete and repetitive rhetorical technique used variously to speculate on hydrocarbon production, economic development, regional energy development, and risks associated with the Burgos. We also identify an array of visualizations, what we refer to as ‘conjurings,’ used with narratives of potential to encourage investments in the Basin's development. These include: maps depicting Burgos geologic continuity with productive Texas fields, quantitative forecasts of growing production, visual depictions of private firms facilitating future production, and fracking as a necessary wedge to pry open the Burgos' unrealized potential. Finally, using governmentality, we link Burgos potentiality discourses to socio-political outcomes, including in the early 2000s, when the Basin was imagined as a way to counterbalance the skyrocketing costs of imported natural gas, continuing with the 2013–2014 Reforms, and into the post-Reform oil and gas conference spaces that facilitated financial investing opportunities. We also argue that the current administration leveraged anti-fracking discourse to reverse the liberalization of Mexico's hydrocarbon sector. By drawing together overlapping elements from scholarship into resources, speculation, and governmentality, and by parsing the ways that potential narratives and conjuring tools are deployed, this research contributes to ongoing debates in political geography around natural resources and the geopolitics of the subsurface.     

Confessional disputes in the republic of letters: Susan Du Verger and Margaret Cavendish

The starting point of this article is an understudied piece of critical exegesis from 1657 titled Humble Reflections Upon Some Passages of the Right Honorable the Lady Marchionesse of Newcastles Olio. An obscure Englishwoman named Susan Du Verger composed this 164-page tract to refute a three-page essay on “A Monastical life” by the prolific poet, playwright, and philosopher, Margaret Cavendish. While there is now a substantial body of work on nuns and convents, this research largely overlooks how early modern women engaged with these topics in a scholarly manner. Along with elucidating the gamut of relevant patristic and ecclesiastical histories that were available in the English and French vernaculars, Humble Reflections provides a prompt for investigating Cavendish’s ideas on ecclesiastical order, ceremonies, and toleration. I propose that Cavendish refused to grace Du Verger with a direct response because her polemic disregarded the unofficial codes of conduct — friendship, transnational community, and inter-confessional co-existence — that were supposed to maintain peace within the Republic of Letters. In conclusion, this essay displays that Cavendish was actually a great admirer of monasticism, though not so much for its role in the spread of Christianity as for its place in the development of natural philosophy.     

天然水硬性石灰在不同碳化条件下的水化反应

为了探究不同碳化条件对天然水硬性石灰水化过程的影响,继而认识到养护条件中的碳化作用对天然水硬性石灰早期强度和养护时间的影响,模拟制备了不同碳化条件下的样品,用X射线衍射(XRD)、热重分析(TG)、红外光谱(IR)、扫描电子显微镜和X-射线能谱分析(SEM-EDX)测试和比较养护前后天然水硬性石灰成分、结构、形貌的变化。研究表明,天然水硬性石灰水化生成水化硅酸钙(CSH)、氢氧化钙(Ca(OH)_2)的反应与CSH、Ca(OH)_2的碳化反应同时进行,并且Ca(OH)_2的碳化速率大于水化反应生成Ca(OH)_2的速率。随着养护龄期增加CSH逐渐由细小的针棒状结构生长为粗大的棒状结构,随后又逐渐变短并最终完全碳化为方解石晶型的碳酸钙(CaCO_3)形貌。天然水硬性石灰水化产物的碳化作用能促进其水化反应进程。     

张衡地动仪的发明、失传与历史继承

地动仪的发明和失传存在深厚的社会背景.悬挂物对地震的良好反应是诞生科学思想的物质基础.地动仪是对天然验震器的发展,张衡不仅在利用物体惯性测震上,也在检测和记录地震微弱信号上有技术创新,成功测到公元134年12月13日陇西地震.天诫观念把自然现象与社会问题混为一谈,导致张衡晚年和地动仪的悲剧.仪器可能失传于东汉末年,当时发生了洛阳大火、毁铜铸钱、京师搬迁、人口剧减和灵台被毁等极端严重的社会混乱.张衡的科学思想和实践对现代地震学的起步发挥过思想启迪作用.对地动仪的研究需要开展科学实验,学术观点的统一只能建立在科学实验的基础上.     

中英国家公园旅游可持续性比较研究——以中国九寨沟和英国新森林国家公园为例

中英两国国情迥异,但两国的国家公园均以自然保护、旅游与社区可持续发展为管理目标。本文以中国九寨沟和英国新森林国家公园为例,构建了由12个客观指标和12个主观指标组成的国家公园旅游可持续性评价指标体系,通过专家咨询和均方差法计算指标权值,用加权指标综合评价方法对案例地旅游可持续性进行了评价。评价结果表明,九寨沟旅游发展具有潜在的可持续性;而新森林国家公园则具有潜在的不可持续性。论文最后从两国国家公园管理体制和模式差异对评价结果进行了解释。     

尺度政治中的空间重叠及其制度形态塑造研究——以深汕特别合作区为例

以深汕特别合作区为例,借鉴依赖空间和交互空间分析思路,对基于共同利益而非对抗性的尺度政治过程进行分析。其中,深圳市对连续依赖空间的建构、汕尾市对依赖空间交互功能的挖掘、广东省在交互空间中的管制试验等分别定义了它们各自的依赖空间和交互空间,这些空间在多个尺度上相互重叠,并集中体现在深汕特别合作区这一新的尺度和制度空间中。在这种情况下,各行动者依赖和交互空间的性质、行动者间的相对权力关系以及各自掌握的不同资源等因素共同塑造了合作区的组织架构、管理权限和利益分配等制度形态。     

淮海经济区区域市场空间分析

省际边缘区研究是近年来经济地理学关注的热点领域。以县域为研究单元,以淮海经济区为案例,运用SPSS和ArcGIS软件,对省际边缘型经济区区域市场发育的空间分异特征及市场区划分进行了深入探讨,结果表明:生产性因子是造成淮海经济区区域市场发育差异的主导因素;淮海经济区区域市场整体发育比较滞后且市场发育水平差异较大;苏北、鲁南的区域市场发育水平明显高于豫东、皖北,皖北区域市场发育尤为滞后;从区域尺度看,区域市场发育程度呈现由京沪沿线地区向东西两侧逐渐降低的"凸"字型格局;从城乡尺度看,呈现由城市向外围农村地区逐渐降低的圈层分异格局。进而采用统计分析方法将淮海经济区区域市场划分为北部发达型、南部较发达型、东部发展型和西部滞后型。     

Slaves, servants and wage earners: Free and unfree labour, from Grotius to Blackstone

This article provides an intellectual history of the status of wage earners as conceptualized within the natural law paradigm by European writers both on the Continent and in Britain. Historians of political discourse have mostly investigated the consequences of such a status for the political rights of labourers. This article shows that the crucial moves were made by different authors analysing the relation of servant to master either in the domestic sphere or in private contracts. The article further contends that that resulting deeply ambiguous analyses implied a far from complete personal freedom for wage earners. This had a decisive impact on different visions of commercial society in early modern times, and left a significant legacy for moderns.     

Towards the identification of dyestuffs in Early Iron Age Scandinavian peat bog textiles

A large systematic dye investigation of prehistoric Danish and Norwegian bog textiles was carried out using high performance liquid chromatography with photo diode array detection. After the selection of the most suitable protocol for dye extraction and HPLC analysis for this specific group of archaeological samples, the second part included the characterisation of the dyes detected in the whole series of the Early Iron Age textiles and the interpretation of the dyeing technology. Natural organic dyes were found from the three main categories of natural dyes, hence throwing new light on the use of biological dye sources in Early Iron Age Scandinavia. The results clearly indicate that most Scandinavian peat bog textiles originally were dyed and that already during the 1st millennium BC, the populations in Scandinavia were familiar with the dyeing technology.