农村现代化道路的理论探源——对马克思、恩格斯关于农民理论的重新审视

中国农村的现代化实践是一场以马克思主义为指导的探索活动。本文力求将马克思主义关于农民问题的相关理论和实证分析结合起来,论述了马克思等关于农民理论的立足点及其发展,分析了农业集体化道路及其挫折,通过对经典理论的重新审视,进而得出对社会主义农业现代化道路的启示.     

The significance of pockmarks to understanding fluid flow processes and geohazards

Underwater gas and liquid escape from the seafloor has long been treated as a mere curiosity. It was only after the advent of the side‐scan sonar and the subsequent discovery of pockmarks that the scale of fluid escape and the moon‐like terrain on parts of the ocean floor became generally known. Today, pockmarks ranging in size from the ‘unit pockmark’ (1–10 m wide, < 0.6 m deep) to the normal pockmark (10–700 m wide, up to 45 m deep) are known to occur in most seas, oceans, lakes and in many diverse geological settings. In addition to indicating areas of the seabed that are ‘hydraulically active’, pockmarks are known to occur on continental slopes with gas hydrates and in association with slides and slumps. However, possibly their potentially greatest significance is as an indicator of deep fluid pressure build‐up prior to earthquakes. Whereas only a few locations containing active (bubbling) pockmarks are known, those that become active a few days prior to major earthquakes may be important precursors that have been overlooked. Pockmark fields and individual pockmarks need to be instrumented with temperature and pressure sensors, and monitoring should continue over years. The scale of such research calls for a multinational project in several pockmark fields in various geological settings.     

Fluid flow and stability of the US continental slope offshore New Jersey from the Pleistocene to the present

We predict that portions of the New Jersey continental slope were unstable approximately 0.5 million years ago. This instability was caused by rapid sediment loading during a Pleistocene sea‐level lowstand and by flow focusing in underlying, permeable Miocene strata. The simulated instability is consistent with soft‐sediment deformation and small slumps in Pleistocene strata of the Hudson Apron. Stability of the New Jersey margin has increased since 0.3 Ma because sedimentation rate has decreased. Today, the modelled factor of safety (FS) for the upper slope is approximately 1.5 whereas in the lower slope it exceeds 3. We predict that sedimentation rate is a dominant factor on slope stability. When rapid and asymmetric loading of a highly permeable sedimentary layer occurs, the location of instability can shift seaward to regions where sedimentation rates are low. Stability calculations use pressures and effective stresses predicted by a coupled sedimentation‐fluid flow model. This hydrodynamic analysis demonstrates how the interplay of sedimentation and fluid migration affects the distribution, timing, and size of sedimentary failures.     

Development Thinking—Bridging the Gap Between Theory and Practice

Theoretically, Development Studies has been claimed to be moving out of its previous impasse. However, its policy implication has traditionally been rather weak, and on this account no large improvements are presently visible. A strong call for relevancy has emerged in the middle of the 1990s, from the same writers who claim that we are now moving beyond the impasse in development theory. Somehow this opens up a niche for development geography, if its strong background in field work can be combined in a dialogue based on theoretical issues. This paper illustrates how the teaching of development in the field can bring up new issues, to be discussed thoroughly within some kind of a dialectical dialogue. The teaching of development finds itself trapped in a controversy, that could be termed as a development crisis. However, existing contradictions in the debate can nurture the more intense probing into the nature of development. Combined with field work experience, this paves the way for a dialogue in which many of the axiomatic truths are turned upside-down. Matters—such as the conflict between modernization and traditional values, the meaning of development, and the role of various actors in the development process—are all focused in an intensive discussion.     

寿县李三孤堆楚器的研究与探索

本文介绍了李三孤堆楚墓所出青铜器的流散和收藏慵况,回顾了自20世纪30年代初至今学者们对这批楚器的研究历程及成果,并从铭文释读、器物形制、器群主人及其埋葬环境几方面分别阐述了各家之说,最后通过回顾和分析总结出目前这一研究中存在的问题,提出了深入进行这一研究的重要意义,并指出了今后的研究方向。     

Pine Nut Use in the Early Holocene and Beyond: The Danger Cave Archaeobotanical Record

Nuts of limber pine (Pinus flexilis) from Early Holocene strata in Danger Cave, Utah, are distinguishable by seed-coat sculpturing from pine nuts of single-needled pinyon (Pinus monophylla), which occur in strata dating <7000 years . Owls and other taphonomic agents may deposit pine nuts in archaeological sites, but the morphology of the pine nuts in Danger Cave strongly indicate they were deposited by human foragers who brought small quantities with them for food for at least the last 7500 years. Large-scale transport of pine nuts to Danger Cave from distant hinterlands is unlikely, however. The seamless transition from limber pine to pinyon pine nuts in the Danger Cave record suggests that foragers who had utilized limber pine as a food resource easily switched to using pinyon pine nuts when pinyon pine migrated into the region at the close of the Early Holocene.     

Why are cultural policy decisions communicated in cool cash?

In this article, we analyze the role of the economic rationale in modern cultural policy decision communication and ask why it remains such an important factor, even though research has argued against it. Based on Luhmann’s system theory, we show how the economic rationale manifests itself in the cultural political communication as parasitic and complementary couplings, and how different communication forms are in play: the indirect, direct, and the both-and form. The point is to construct communicative positions in cultural policy. The positions involve the economic rationale in their own particular way and each of them offers themselves as a communicative platform which the culture politician can optionally step into and out of. The arts system stands out from other systems by not distinguishing itself in one single distinction and coding. In exactly this issue lies the communicative complexity which the communicating cultural politician faces and must handle. As our analysis shows, this complexity is handled by communicating within the economic rationale and coding, with the result that complexity is reduced.     

Pore pressure evolution and fluid flow during visco‐elastic single‐layer buckle folding

Pore pressure and fluid flow during the deformational history of geologic structures are directly influenced by tectonic deformation events. In this contribution, 2D plane strain finite element analysis is used to study the influence of different permeability distributions on the pore pressure field and associated flow regimes during the evolution of visco‐elastic single‐layer buckle folds. The buckling‐induced fluid flow regimes indicate that flow directions and, to a lesser degree, their magnitudes vary significantly throughout the deformation and as a function of the stratigraphic permeability distribution. The modelling results suggest that the volumetric strain and the permeability distribution significantly affect the resulting flow regime at different stages of fold development. For homogeneous permeability models (k > 10^?21 m²), low strain results in a mostly pervasive fluid flow regime and is in agreement with previous studies. For larger strain conditions, fluid focusing occurs in the buckling layer towards the top of the fold hinge. For low permeabilities (<10^?21 m²), local focused flow regimes inside the buckling layer emerge throughout the deformation history. For models featuring a low‐permeability layer embedded in a high‐permeability matrix or sandwiched between high‐permeability layers, focused flow regimes inside the folded layer result throughout the deformation history, but with significant differences in the flow vectors of the surrounding layers. Fluid flow vectors induced by the fold can result in different, even reversed, directions depending on the amount of strain. In summary, fluid flow regimes during single‐layer buckling can change from pervasive to focused and fluid flow vectors can be opposite at different strain levels, that is the flow vectors change significantly through time. Thus, a complete understanding of fluid flow regimes associated with single‐layer buckle folds requires consideration of the complete deformation history of the fold.     

神和乃礭：利玛窦世界地图的在华传播及其本土化

在西学东渐史上,利玛窦是一个标志性的人物。他不仅在中国用汉语编写《天主实义》和《交友论》,阐释基督教神学和伦理思想,提出对儒佛的独到分析;与徐光启合译《几何原本》前六卷;并多次译绘汉文世界地图,为中国乃至东亚世界首次完整地展示了世界的面貌。该图见之于明确文字记载的自刻、他人翻刻和摹绘版本多达十余种。笔者根据利玛窦世界地图刊刻和传播的实况,将其版本分为《大瀛全图》与《山海舆地图》、《坤舆万国全图》、《两仪玄览图》三个系列和木刻本、彩绘绢本两种形式;并就“地圆说”与地球知识、“五大州”与“万国”的概念、西方人文地理知识点的介绍及其与中国文化的对话等诸多方面,讨论了利氏世界地图中所传送的新知识、新方法和新词汇,指出该图是明清士人理解整个世界的一个重要的窗口。论文还通过熊明遇的《格致草》、熊人霖的《地纬》、王在晋的《海防纂要》以及晚清的《海国图志》和《瀛寰志略》等,分析了利氏世界地图在晚明至晚清二度本土化的过程,指出该地图在晚清西学知识重建过程中所产生的意义。     

论贾谊的帝王之术

先秦诸子的道德之论,也就是帝王之术,同归于执本秉要,清虚自守。贾谊进一步阐明了这个观点,认为“道”是人君取得成功的最高政治法则,并且认为“道”的内容就是“善”。而贾谊道德论的实质是以“有为”为“无为”。为适应汉王朝大一统的政治需要,贾谊提出以“有为”的方法治理国家,实现老子提出的天下有道时无为而无不为的理想政治状态。