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11.
[I] want to single out one phenomenon that could be called the ‘politics of sources’. It points to the extent to which the histories that both scientists and historians can write are artifacts of the available sources. The Rockefeller Foundation not only opened its archives very early on for historical work but also invested a lot in making the archives readily available for historical exploration. During the 1980s, many young historians took advantage of this opportunity. Thus, in a relatively early phase of the professional historiography of molecular biology, one could have gained the impression that the development of the new biology as a whole was a bio-politically directed enterprise of the Rockefeller Foundation sustained by the vision that social processes could ultimately be controlled by biological processes. 相似文献
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海峡文化圈是历史上汉族文化南下开发东南地区的过程中,与当地闽越文化相结合,应对海峡地区特定的自然地理条件的挑战而逐步形成的一个区域文化单元。它具有多维的空间内涵和突出的文化特征;在引进和创新科技、促合经济文化互动和整合区域内部文化差异方面,表现出很强的活力。在当代社会历史条件下重构海峡文化圈,有着深刻的历史必然性。 相似文献
14.
“杨各庄”等地名的地理分布及其音变的历史意义 总被引:1,自引:0,他引:1
华北地区及华东地区地名中多见“X各庄”和“X家庄”。该地区中,从西北部到东南部,“X各庄”的比例逐渐增多,而“X家庄”的比例逐渐减少,形成了一个语音渐变的地理连续体。这种特殊现象的形成是由于该地区西北部较频繁地受到北方阿尔泰语系诸语言的影响,而相对来说,东南部则较少受到这种影响。地名中的“各”仍然保留了中古汉语“家”的舌根音塞音声母[k-]。这种明显的地域互补分布表明了北方汉语方言前高元音前面的舌根声母转变为舌面音的力量来自于外部的人文影响,而非内部语言音变。 相似文献
15.
20世纪的世界已是一个整体,各国各民族都是世界整体的各个局部,各个重大事件都是世界历史链条上的各个环节。不应孤立地考察某个历史事件或某一国家的命运,而应从世界整体历史的角度,去把握历史事件的内在联系。李植栴主编的《20世纪世界史》的突出特点,就在于整体研究。但该有所忽视的是,世界历史整体与外部环境的关系。 相似文献
16.
论张学良与“西北国防政府”计划 总被引:2,自引:0,他引:2
张学良自成局面的设想和中共先行建立地区性国防政府的策略 ,是促成“西北国防政府”计划产生之两大要素。但在该计划的实施步骤及是否反蒋、如何打通苏联等问题上 ,张与中共间存在着某些潜在分歧 ,加之中共的政策由反蒋抗日急剧转向逼蒋抗日 ,打通苏联亦未能成功 ,从而导致该计划终归流产 相似文献
17.
Malcolm K. Hughes Stephen J. Milsom Patricia A. Leggett 《Journal of archaeological science》1981,8(4):381-390
Many timber finds lack some or all of the outer, sapwood rings formed in the years just before felling. In order to estimate felling date once the outermost remaining ring has been dated, it is necessary to estimate the number of sapwood rings originally present. Methods doing this for oak are reviewed in the light of an intensive study of living trees at one site and an extensive study of 175 samples from living trees in North Wales and northwest England. Some methods reported in the literature are found to be invalid. A method reported by Hollstein (1965) is most reliable, with modifications for known variations in sapwood number with position in the tree. At present the best available estimate is that a value of 30 sapwood rings be used (95% confidence limits: 19–50). 相似文献
18.
论博物馆核心竞争力的建设 总被引:1,自引:0,他引:1
博物馆作为公共文化设施是当地社区的精神缩影和文明的窗口。作为一个公共产品,面临着市场经济的冲击,全国的各个级别的博物馆都在探索着自己的出路和发展的方向。在发展过程中也出现了一系列的问题,在调和经济效益和社会效益之间,在处理自身发展和观众的要求之间,在保护收藏和展示之间都出现了或多或少的问题。党中央在"两会"上一直提倡发展文化产业和创意产业,要求又好又快地发展,为构建和谐社会而努力。在这样的形势下,也要求我们的博物馆与时俱进,在科学发展观的指导下增强博物馆的核心竞争力。 相似文献
19.
Jane Skippington Peter Veth Tiina Manne Michael Slack 《International Journal of Osteoarchaeology》2019,29(5):760-771
Stable isotopic analysis of palaeontological and archaeological biogenic apatite carbonates from herbivorous mammalian species represents an important tool for worldwide palaeoecological research. Tooth enamel carbonates are more resistant to taphonomic processes than bone or dentine carbonates but are not invulnerable to diagenesis. As such, they require careful preanalytical processing that considers depositional environment and age. An established part of this process includes a weak acid treatment to remove soluble exogenous carbonates; however, published treatment times for isotopic studies of archaeological tooth enamel are variable and range from 15 min to over 8 hr. This study tests three different pretreatment protocols on modern and Pleistocene age archaeological kangaroo teeth (dating from contemporary to 46,000 bp ) to assess the effect of acid treatment time on isotopic integrity. The results indicate that treatment time is a critical parameter for producing consistency across results and shorter pretreatments of 4 hr or less are preferable for removing diagenetic carbonates while minimising alteration of the biological signal. 相似文献
20.
Bryn Letham Andrew Martindale Kisha Supernant Thomas J. Brown Jerome S. Cybulski Kenneth M. Ames 《The Journal of Island and Coastal Archaeology》2019,14(2):163-197
Methodological advancements in geoarchaeology and spatial and chronological modeling are opening new avenues to interpreting large coastal shell-bearing sites. We document the developmental histories of two such sites around Prince Rupert Harbour, Canada, using systematic percussion coring, intensive radiocarbon dating, and 3D surface mapping with Total Station and LiDAR. We also re-analyze a third site (Boardwalk/GbTo-31) excavated and radiocarbon dated in the 1960s, 1970s, and early 2000s using archival field notes, site maps, and stratigraphic profiles georectified using LiDAR. We map the natural landform beneath the sites and document the degree to which people physically modified landforms through the deposition of massive shell accumulations. We model site development through time and space and use accumulation rates and OxCal modeling to test for intentional deposition events. All three sites demonstrate complex and heterogeneous occupation histories. At each we identify instances of very rapid deposition that effectively terraced and extended parts of the natural landform to create places for constructing houses, though these episodes take place within longer histories of slower quotidian deposition. The anthropogenic modifications to the coastline in this area are the result of these mixed processes associated with long histories of occupation. 相似文献