国民军入甘及其对甘肃社会的影响

冯玉祥的国民军1925年10月进入甘肃,驻军5年之久,对甘肃社会产生了深刻的影响。国民军实行全省军政和财政统一,整顿吏治;宣传国民革命和新三民主义,使新思想和新思潮广泛传播;发展经济,创办学校,促进甘肃文化教育事业的发展,使甘肃社会发生了前所未有的变迁。     

Poromoi Tamu and the Case of the Drowning Village: History, Lost Places and the Stories We Tell

Archaeological excavations at an ancestral village site within rainforest in Papua New Guinea has revealed buried cultural evidence that can be explained in a number of ways. While interpretations based on Western archaeological methods suggest regional landscape dynamics informed by geomorphological processes, Indigenous Rumu oral traditions suggest an interpretation of the site’s stratigraphy based on the workings of spiritual forces. The role of story-telling and new information in site interpretation and understanding is explored in light of these different yet complementary accounts.     

Field gamma spectrometry,Monte Carlo simulations and potential of non-invasive measurements

The determination of gamma dose rates is of prior importance in the field of luminescence dating methods. In situ measurements are usually performed by the insertion of dosimeters or a portable gamma spectrometer cell in sediments. In this paper, Monte-Carlo simulations using the Geant4 toolkit allow the development of a new technique of insitu gamma dose rate evaluations: a spectrometer cell is placed on the surface of sediments under excavation to acquire successive spectra as sediments are removed by excavations. The principle of this non-invasive technique is outlined and its potential is discussed, especially in the case of environments in which radioelements are heterogeneously distributed. For such cases, a simple method to reconstruct gamma dose rate values with surface measurements using an attenuator is discussed, and an estimation of errors is given for two simple cases. This technique appears to be applicable, but still needs experimental validation.     

辽代医药学发展浅析

一、前言契丹族是中国古代北方强族,公元4世纪左右开始在西拉木伦河和老哈河一带游牧。公元916年,契丹迭剌部首领耶律阿保机统一契丹各部,建立大契丹国,后改国号为大辽,称雄中国北方数百年,与北宋、西夏形成三足鼎立之势。有辽一代,契丹族政治、经济、文化有长足的发展,辽代医药学也有一定的发展。辽代医药学发展上承隋唐、五代,旁及宋及周边民族的先进经验,加之自己八百余年的医学实践,在医学理论、疗法、疗术、方、散、丹、丸的研制以及食疗,保健等方面都有一定的建树,甚至有自己的发明和创新。历史步入21世纪后,在全世界范围内非常重视对…     

顾颉刚藏书记(上)

顾颉刚先生(原名诵坤,字铭坚)于1980年12月逝世,根据其"藏书不要分散,以便后人利用"的遗愿,家属将其藏书捐献给中国社会科学院,1981年先由历史研究所代管,1988年由文献信息中心(当时称文献情报中心)正式接收,成立"顾颉刚文库".