Liu, X.H., Li, Y., Yao, Y.Z. & Ren, D., April 2016. A hairy-bodied tettigarctid (Hemiptera: Cicadoidea) from the latest Middle Jurassic of northeast China. Alcheringa 40, xxx–xxx. ISSN 0311-5518
Extant tettigarctids are also known as hairy cicadas because they are covered by long and abundant hairs. This character had not been reported in fossil species of Tettigarctidae because previous examples were poorly preserved or lacked long hairs. Hirtaprosbole erromera gen. et sp. nov. (Tettigarctidae) with a hairy body, from the latest Middle Jurassic Jiulongshan Formation of Daohugou, Inner Mongolia, China, is described here. This new species provides evidence that tettigarctids with long dense hairs had appeared by the latest Middle Jurassic and lived at high altitudes.
ABSTRACTThe English term republic and the Chinese term Gonghe (共和, “joint harmony”; i.e., “republic” in modern Chinese) stem from different conceptual origins and carry different connotations. When they first encountered the term republic, the intellectuals of China and Japan could only understand it by drawing on the political knowledge of Chinese antiquity. But soon after, two different concepts corresponding to the term republic emerged in the form of Chinese characters within the Chinese and Japanese linguistic environments—minzhu (民主, “people's rule”) and gonghe, which gradually shed their ancient Chinese significations. After its coining as an early modern political concept in the Japanese language, the term gonghe sporadically filtered into the Chinese linguistic context during the 1880s and 1890s. In 1898–1902, the concept of gonghe rapidly gained popularity in China, primarily due to its introduction by Liang Qichao (梁启超, 1873–1929) and other figures, with a clearly demarcated line separating the term from its ancient Chinese significance. As the concept of gonghe spread in China, it became embroiled in the contemporary tide of political reform, both influencing and being influenced by this trend. In the first decade of the 20th century, two competing interpretations of the term gonghe appeared. The moderates, represented by Liang Qichao, maintained that the evolution of the political system had a natural order; that their contemporary China did not yet have the conditions to adopt a republican system; and that it was necessary to first improve the citizens’ character, and cultivate the habits of self-governance among the people. The radicals, represented by Sun Yat-sen (孙中山, 1866–1925), held that China should overleap a constitutional monarchy, overthrow the Manchu emperor through violent revolution, and directly establish a republican form of government. The views of the radical party won discursive power, but their discussions and deliberations on the implications of a republic were clearly inadequate. Following the outbreak of the 1911 Revolution, a republican form of government was quickly established, but its functional results fell far short of people's expectations, causing the concept of a republic to be distrusted, criticized, and even shelved. 相似文献
Using data from a random sample of the 2005 National Population Survey of China, we investigate the association between child death and maternal hourly wages. Approximately 1.6 per cent of the population has experienced at least one child death. Such bereaved mothers’ hourly wages are 53 per cent lower than those of non-bereaved mothers. We find that child death carries a significant wage penalty. Son death has a larger impact than daughter death and its effect decreases as the number of children in the household increases. Our decomposition results show that number of children, maternal education and regional characteristics are the three most important contributors to the wage gap, yet unexplained differences remain large, especially at the lower end of the wage distribution. 相似文献
Echinochloa was an important prehistoric food crop of early agriculture in Asia. Macro-remains can be used to identify Echinochloa. However, when few macro-remains are available, phytolith analysis can be performed. In this study, we examined the phytolith morphology of the glumes, lemmas, and paleas from the inflorescence bracts of nine Echinochloa species from different regions of China and obtained diagnostic, morphological, and morphometric characteristics for Echinochloa. Phytoliths in Echinochloa are different from those in most known crops except those in Setaria italica and Panicum miliaceum. We found the following two diagnostic features within an epidermal silica layer that can be used to distinguish Echinochloa sp. from S. italica and P. miliaceum: (1) the β-type undulated patterns with constricted top of the undulation amplitude and (2) the discriminant functions based on the morphometric data of the β-type undulated patterns, which suggested that 94.9 % of the cross-validated data were correctly classified into Echinochloa, S. italica, and P. miliaceum. Thus, we established the phytolith identification criteria for Echinochloa; this could have important implications in plant taxonomy, archaeobotany, and plant domestication. 相似文献
ABSTRACTSince the late 1980s, millions of poor and low-income rural migrant workers migrating to Chinese metropolises with their children have congregated in chengzhongcun (villages in the city) for low-cost housing. Drawing on data from a 14-month participant observation in one chengzhongcun in Beijing, we critically explore the potential impact of urban expansion on social mobility of migrant youth. We argue that the uncertainty and chaos connected with looming demolition result in substandard schooling and business closures for migrant parents, leading to the stagnant mobility of migrant youth. Expanding the social hierarchy pyramids, we argue that eliminating chengzhongcun, a space that creates the possibility of climbing the social ladder, hampers the social mobility of migrant youth in the context of the rigid class structure in the late-socialist China. This research re-examines the goals of the demolition of chengzhongcun and advances our understanding by analyzing the prospects of disadvantaged migrant youth during and after the demolition process. 相似文献
This paper explores the possible provenance of ores employed for metallurgical production during the Early Bronze Age in the central Hexi Corridor of north-west China. In total, 78 pieces of copper (Cu) ore samples were collected from five Early Bronze Age sites and one Cu deposit site (the Beishantang Cu deposit) in the Heihe River region of the central corridor. These sites were dated to the late Machang (4100–4000 bp ), Xichengyi (4000–3700 bp ), Qijia (4000–3600 bp ) and Siba (3700–3400 bp ) cultures. After comparing with published lead (Pb) isotopic data from other possible Cu deposits in north-west China, the results show that the Cu ores collected from the Early Bronze Age sites were most likely derived from the adjacent Beishan Cu deposit. More intriguingly, for the first time in Hexi Corridor, a dozen Cu ores were discovered containing highly radiogenic Pb. Though fundamentally different from those in the Central Plains, they illustrate a possible new type of Cu used in Bronze Age western China, and the first-hand materials are significant for further understanding the provenance of raw metals for metallurgical production in the prehistoric Hexi Corridor. 相似文献