Archaeobotanical evidence of prehistoric maize (Zea mays) consumption at the northern edge of the Great Plains

Analysis of starch granules, phytoliths, and plant macrofossils from archaeological features and carbonized food residue provides important new insight into the extent of prehistoric maize (Zea mays) consumption on the North American Great Plains. These data suggest that consumption of maize, and probably other cultigens, was widespread on the eastern Canadian Prairies between approximately AD 1000 and 1600. Domesticated plants may have been grown locally, acquired through trade, or transported into the region following dispersal of family groups from horticultural villages located elsewhere. However, the lack of strong artifactual evidence of gardening, and the small-scale nature of sites on the eastern Canadian Prairies indicate that local horticulture, if practiced, was non-intensive.     

对大革命时期党的军事运动历史地位的再认识

在大革命时期,中国共产党对武装斗争及革命军队在中国革命中的作用等一系列重要军事理论问题进行了大量的探索;通过黄埔军校、国民革命军、国民军、苏联以及工农运动等多种途径与方式,培养和储备了一大批军政人才;通过东征、北伐等一系列的军事行动,积累了丰富的军队管理和指挥的实际经验。这些从军事理论、军事人才以及军事实践上为党在大革命失败后立即创建人民军队、独立开展人民革命战争打下了基础。因此,大革命时期是党创建人民军队的重要准备阶段。大革命时期的军事运动是中国共产党武装斗争史的发端,它对人民军队的创建,对土地革命战争、抗日战争、解放战争都产生了深远影响,有力地推动了中国革命胜利的进程。     

隋朝的北部防务与长城问题

本文认为,长城在隋朝得到了利用,但是隋朝多沿承前朝旧有的基础,而且是部分地采用,其目的是防御突厥的进攻。之所以如此,是因为长城的建设只是隋朝处理北方关系的一个手段,隋很重视军队的建设和将领的选拔任用,以综合措施防守北方边地。这是隋朝长城修建的特点。     

The Fremont Complex: A Behavioral Perspective

The Fremont complex is composed of farmers and foragers who occupied the Colorado Plateau and Great Basin region of western North America from about 2100 to 500 years ago. These people included both immigrants and indigenes who shared some material culture and symbolic attributes, but also varied in ways not captured by definitions of the Fremont as a shared cultural tradition. The complex reflects a mosaic of behaviors including full-time farmers, full-time foragers, part-time farmer/foragers who seasonally switched modes of production, farmers who switched to full-time foraging, and foragers who switched to full-time farming. Farming defines the Fremont, but only in the sense that it altered the matrix in which both farmers and foragers lived, a matrix which provided a variety of behavioral options to people pursuing an array of adaptive strategies. The mix of symbiotic and competitive relationships among farmers and between farmers and foragers presents challenges to detection in the archaeological record. Greater clarity results from use of a behavioral model which recognizes differing contexts of selection favoring one adaptive strategy over another. The Fremont is a case where the transition from foraging to farming is followed by a millennium of adaptive diversity and terminates with the abandonment of farming. As such, it serves as a potential comparison to other cases in the world during the early phases of the food producing transition.     

Postcrisis recovery in the regions of Europe: Does institutional quality matter?

This paper investigates how institutional quality and its components (quality, impartiality, and control of corruption) are associated with the economic recovery in the aftermath of the global recession (2010–2016). The evidence suggests that the postcrisis dynamism of a region depends on whether its economy is accompanied by a good governance at the local level. The results also show the heterogeneity in the effects of institutional characteristics and other traditional determinants of growth for the high-income club (core) and the low-income club (periphery), respectively. This evidence can provide indications to define ad hoc policies apt to mitigate the recent surge in inequality among EU regions.     

降雨对榆阳区明长城单体建筑破坏模式的试验研究

前期调查分析可知,降雨对榆阳区明长城单体建筑的破坏形式包括水力侵蚀和重力侵蚀两大类,主要影响因素为降雨特征、遗址保存形态和遗址土的性质。为了进一步了解降雨对该类土遗址的破坏方式及主要影响因素作用特点,按照相似理论要求设计模型试验,研究了降雨对榆阳区明长城单体建筑的破坏模式。试验结果表明,降雨对遗址模型的破坏方式与前期调查分析结果基本一致,水力侵蚀方式有冲沟侵蚀、片流面蚀、流水淘蚀和流水冲蚀,重力侵蚀方式有坍塌和滑塌。一般A型暴雨条件下,各种水力侵蚀方式均有发生,重力侵蚀发生次数相对较少;B型暴雨条件下,主要发生片流面蚀,重力侵蚀破坏发生次数较多。通过模型试验得出的降雨对遗址模型的破坏方式及发生特点方面的结论,可以在一定程度上为降雨对该类遗址破坏的评估和防治提供参考。     

"大跃进"时期扫除文盲运动述评

1958～1960年,是新中国历史上的"大跃进"时期.在各行各业"大跃进"的带动下,全国也很快地掀起了扫除文盲的"跃进"运动.这一运动随形势发展,由兴到衰,经历了一个曲折的发展过程.在扫除文盲运动中,存在着严重的浮夸现象,但一些具体的做法也不无借鉴意义.     

重评共产国际指导中国大革命的路线

中国大革命是在联共政治局和共产国际直接指导下进行的。在此期间 ,联共政治局会议专门讨论中国革命问题 1 2 2次 ,做出了 73 8个决定。指导中国大革命的基本路线和方针、政策 ,几乎全部来自莫斯科 ,并且由莫斯科派驻中国的代表、顾问亲自执行 ;只有一小部分是在他们的代表严密监督下由陈独秀为首的中共中央执行。 1 92 3— 1 92 5年 ,莫斯科提出的路线基本上是正确的 ;1 92 5年秋开始发生右倾化的转变 ,最后导致了大革命的失败。     

大农业不是英国农业和经济衰落的原因——与徐正林和郭豫庆同志商榷

18世纪中期以后英国大农业的兴起和发展,从历史实际看,不仅没有导致英国农业的衰落,相反使英国农业进入了一个黄金时期;不仅没有削弱英国工业发展的基础,相反有利于工业资本的积累和农村人口向城市的流动,极大地推动了英国工业化的发展。英国丧失工业霸主地位、走向相对衰落,有着复杂的、多方面的原因,不能简单地归因于大农业。在吸收国外的研究成果时,盲目照抄,或根据某种需要而随意剪裁历史的做法,都是不可取的。     

Ground Penetrating Radar in the Northern Great Lakes: A Trial Survey of a Contact Period Occupation in Marquette County,Michigan

ABSTRACT

Timing, inclement weather, and limited budgets can obstruct archaeological survey efforts. Here, we ameliorate some of these with use of ground penetrating radar (GPR) at the Goose Lake Outlet #3 (GLO#3) site (20MQ140). GPR surveys to guide survey and excavation efforts in these well-drained sandy soils are limited. GPR imagery exhibited false positives; however, shovel probes, subsequent site excavation, and artifact analysis led to numerous discoveries at this protohistoric site—including glass trade beads dating to the 1630s. These discoveries solidify evidence for some of the earliest European-made trade items in the region and provide further confirmation for placement of an Indian trail and ancient travel corridor between Lake Superior and Lake Michigan. Two ¹⁴C samples obtained from moose-bone in features with trade goods fall within the expected occupation range of 1633–1668 and 1615–1647. Several anomolies, possible hearth clusters were seen on the GPR imagery; however, many features remained invisible.