S.C并非胡适笔名

1923年9月16日,<努力周报>发表署名S.C的文章<"大国民"的外交>.史学界认为该文是胡适所作,S,C是胡适笔名.实际上,从用语、思想观念及1923年9月前后胡适的居行及著述等方面考察,均可断定<"大国民"的外交>非胡适所作,S.C不是他的笔名.     

THE CHRONOSTRATIGRAPHY AND GEOARCHAEOLOGICAL SIGNIFICANCE OF AN ALLUVIAL GEOARCHIVE: COMPARATIVE OSL AND AMS 14C DATING FROM GREECE*

The Basin of Phlious in southern Greece is known for its thick colluvial and alluvial deposits from the Holocene. It offers a good opportunity to reconstruct the history of Holocene soil erosion and its interaction with historical farming activities. In this study, we present new results based on optically stimulated luminescence (OSL) dating from the Basin of Phlious. The comparison between OSL and ¹⁴C AMS ages shows good agreement, and demonstrates the need for the detection of insufficiently bleached OSL samples in order to obtain accurate results. The discovery of a Neolithic site, buried under thick alluvial deposits, confirms the hitherto postulated Neolithic human impact on the landscape.     

IN VITRO DECOMPOSITION OF BONE COLLAGEN BY SOIL BACTERIA: THE IMPLICATIONS FOR STABLE ISOTOPE ANALYSIS IN ARCHAEOMETRY*

To understand biogenic collagen type I decomposition and to establish how diagenesis may bias archaeometric data, modern mammalian bone was inoculated with a selection of ubiquitous soil bacteria. The presence of exogenous microbial biomass in the inoculated specimens was then checked microscopically prior to collagen extraction. The experimentally degraded bone collagen showed altered amino acid compositions, attributable to the selective breakdown of certain amino acids by the bacteria. While both the bulk collagen extract and the single amino acids exhibited shifts to more negative δ¹³ C-values, enrichment was recorded for general δ¹³ N, and a depletion trend relative to unaltered collagen was observed for individual amino acid δ¹³ N. One explanation for the enrichment of the global δ¹⁵N-values is cleavage of peptide bonds, which leaves ¹⁵ N within the substrate, while the change of ¹³C is mostly due to the altered amino acid composition. On the other hand, possible repolymerization of cleavage products under experimental conditions may also be responsible for the depletion trend of individual amino acid δ¹³C- and δ¹⁵ N-values. This paper discusses the results as a basis for the development of a method for the reconstruction of the isotopic abundance of the original collagen, using the amino acid composition of the degraded product, the contribution of individual amino acids to its global δ-values and of isotope discriminations implied in the microbial decomposition.     

BULK STABLE LIGHT ISOTOPIC RATIOS IN RECENT AND ARCHAEOLOGICAL RESINS: TOWARDS DETECTING THE TRANSPORT OF RESINS IN ANTIQUITY?*

We have applied and refined methods for the determination of bulk hydrogen, carbon and oxygen isotope ratios in modern and archaeological resins. The modern resins have a wide range of isotopic values and vary within the same tree, between individual trees, with species and location. For all isotopes measured, there is a general trend of increasing depletion of the heavier isotope with increasing altitude. There is also a linear trend between depletion of δD and δ¹³C values with increasing latitude; this trend is less clear for oxygen, but is related to the meteoric water line. Two case studies using archaeological resins known or suspected to have been transported in antiquity have been investigated to determine whether isotopic signatures can assist in pinpointing the geographical origin of the resin: Pistacia sp. resin from Canaanite amphorae imported into Egypt from known geographical locations in the eastern Mediterranean during the Late Bronze Age, and Roman amphorae sherds lined with Pinus sp. resin from sites ranging from Britain to the eastern Mediterranean. These results show separate groupings between the two resin types (pine/pistacia) and between the modern/archaeological resins. Some archaeological samples are distinct from the others and the modern resins show differences between geographical areas. However, there are no clear patterns relating the different Canaanite fabrics or the suggested manufacturing site of the Roman amphorae.     

Correlation BetweenC Ages and Aspartic Acid Racemization at the Upper Palaeolithic Site of the Abri Pataud (Dordogne, France)

The Upper Palaeolithic site of the Abri Pataud (Dordogne, France) has been the subject of numerous¹⁴C age determinations which cover the period from 20,400±450 years (OXA-373) to 34,250±675 years (Grn-4507). The racemization ratios of aspartic acid have been determined in 26 fossil bones. The bones are present in two different sedimentary surroundings: levels (fine deposits with numerous artefacts and fossil bones) and “éboulis” (coarse deposits derived from the neighbouring limestone cliff). Racemization ratios for total aspartic acid have a poor correlation with¹⁴C ages (respectivelyr²=0·59 and 0·82 for the two environments) but apparent racemization rates are clearly dependent on the type of deposits (levels: K=4·4×10⁻⁶year⁻¹; éboulis: K=9×10⁻⁶year⁻¹).Racemization ratios of aspartic acid in a high molecular weight protein fraction (>10,000 Da) correlate much better with¹⁴C ages (r²=0·999) for the samples from the levels (k=2·1×10⁻⁵year⁻¹). From this regression line we estimate ages for two Aurignacian levels: level 6≈29,560 years and level 9≈30,440 years .It is noteworthy that none of the regression lines intercepts the origin. Racemization of aspartic acid appears to occur only after a delay of many thousands of years. This phenomenon could be the result of a coupling between the degradation of proteins and the racemization of amino acids.     

Breaking Ranks: C. P. Snow and the Crisis of Mid-Century Liberalism, 1930–1980

C. P. Snow's identification of ‘two cultures’, as the literary critic F. R. Leavis pointed out in 1962, represents not an insight but a cliché, one that invites the repetition of further clichés about the origins of a divided culture, the need to bridge cultures, the emergence of a third culture, or the reality of one culture. Yet this recurrent feature of ‘two cultures’ talk does not nullify the concept's value as an object of study, if these discussions are treated as revealing points of entry into foreign historical contexts. This article adopts this approach, unearthing the liberal position that Snow developed as a novelist and critic from the 1930s, that he advanced in the form of a disciplinary lament in The Two Cultures (Snow, C.P. 1959 Snow, C.P. 1959. The two cultures and the scientific revolution. Cambridge: Cambridge University Press. [Google Scholar]. The two cultures and the scientific revolution. Cambridge: Cambridge University Press.), and that — to his distress — increasingly came under radical critique from the mid-1960s. Ultimately, the technocratic liberalism that Snow associated with science at mid-century came to be closer to American neo-conservatism by 1980. By tracking the fortunes of the ideological position that structured The Two Cultures, rather than lifting that text out of its moment in an attempt to engage its arguments today, this article testifies to the abiding value of contextual analysis at a moment when intellectual historians are increasingly inclined to question and even displace it.     

A Critical Review of European and American Provisions for the Seismic Assessment of Existing Steel Moment-Resisting Frame Buildings

The publication of Part 3 of Eurocode 8 (EC8-3), dedicated to the seismic assessment of existing buildings, took place a decade ago. However, its application in engineering practice has been limited. Moreover, no studies have been conducted regarding the application of EC8-3 to steel structures. In this paper, a critical review and practical application of EC8-3 and ASCE41-13 are carried out. Issues related to the definition of the performance requirements, compliance criteria, and the consistency of the analysis procedures proposed by both standards are identified. Conceptual differences between both documents are highlighted, and several inconsistencies in EC8-3 are discussed.     

唐十道演化新论

对唐代道的研究,代不乏人,但多囿于旧说,鲜有突破。本文引用新史料,并对旧史料加以比勘考证,在继承前人研究成果的基础上,对唐代道的演化提出了如下新观点:唐高宗永徽年间,已有十三道的区划;武则天当政时期,回复十道旧观;开元十七年(729年),正式形成十五部的规模;开元天宝之际,实有十六部;终唐之世,几乎没有"十五道"的说法,而是一直沿用"十道"通称。     

General Roatta's war against the partisans in Yugoslavia: 1942

During General Mario Roatta's tenure as commander of the Italian 2nd Army in Yugoslavia, he faced a mounting Communist insurgency. To defeat the partisan forces of Tito, he resorted to proactive politics and a strategy of counter-insurgency. Owing to Italian military weakness and his army's lack of training in guerrilla warfare, Roatta was not averse to enlisting the services of Orthodox Serbs in Croatia, who the previous year had asked for Italian protection after a fearful massacre had been unleashed against them by Mussolini's handpicked ruler in Zagreb, the Croatian Usta?a leader Ante Paveli?. Against the wishes of the Fascist government in Rome, Roatta armed Serbs (called ?etniks) because they agreed to assist the Italian legions in fighting the partisans, their common ideological foe. But as Yugoslavia descended into civil war – one triggered by the Axis invasion – Roatta paid a price for his freelance pro-Serb politicking by alienating Zagreb, irritating the Germans, and dismaying his superiors in Rome. Italian policy was reduced to a tug-of-war between the Fascist empire-builders surrounding Mussolini and the military command in Yugoslavia, and Roatta became enmeshed in a cobweb of intrigues involving Croats, ?etniks and Germans. Apart from political manoeuvring, Roatta, in the ineluctable necessity of defeating the partisans, devised a detailed strategy of counter-insurgency. On 1 March 1942, he circulated a pamphlet entitled ‘3C’ among his commanders that spelled out military reform and draconian measures to intimidate the Slav populations into silence by means of summary executions, hostage-taking, reprisals, internments and the burning of houses and villages. By his reckoning, military necessity knew no choice, and law required only lip service. Roatta's merciless suppression of partisan insurgency was not mitigated by his having saved the lives of both Serbs and Jews from the persecution of Italy's allies Germany and Croatia. Under his watch, the 2nd Army's record of violence against the Yugoslav population easily matched the German. Tantamount to a declaration of war on civilians, Roatta's ‘3C’ pamphlet involved him in war crimes.     

Radiocarbon dates as data: quantitative strategies for estimating colonization front speeds and event densities

Archaeological analysis of large-scale prehistoric population history requires us to estimate rates of spatial spread during dispersals, and rates and magnitudes of temporal contraction during crashes. Using OxCal’s MCMC sampling routine, I introduce and demonstrate a simple and easily implemented method of estimating front speeds that takes due account of the uncertainty in the archaeological data (in both dates and distances), and argue that this method is more appropriate than those most often used in front speed estimation at present. I also propose a simple and easily implemented method of estimating event densities as a demographic proxy, as an alternative to summed calibrated probability distributions. I argue that this alternative is a significantly better technique, and show that its use also enables us to identify individual archaeological dates that are exerting particularly strong influence on the results, so that we can efficiently allocate our attention when assessing the possible effects of exogenous sampling uncertainty. To illustrate these methods I re-analyse two published datasets relating to the early Paleoindian colonization of North America. My results with the new technique indicate that even with a very noisy dataset, there was clear evidence in the framework of the INTCAL04 calibration curve for a drastic reduction in archaeological event densities following the Younger Dryas onset, followed by a prolonged period of reduced human activity, and a possible renewed phase of rapid growth after the Younger Dryas termination and onset of the Holocene. However, the revised estimate of the Younger Dryas marine reservoir offset in the INTCAL09 calibration curve for ∼12,550–12,900 cal BP changes the picture significantly, by flattening the peak in Clovis-age events and pushing it forward in time into the early Younger Dryas itself.