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Using multiple observational and reanalysis data, this paper investigates the impact of the interdecadal shift in summer Arctic Oscillation (AO) on precipitation in East Asia, by removing ENSO influences. The results indicate that the lower-layer activity center of summer AO in Atlantic shifted eastward after the mid-1980s. This regime shift of summer AO has a significant impact on precipitation in East Asia. Before the mid-1980s, the key regions in which precipitation was affected by AO in East Asia were northern East Asia and Northeastern China and adjacent regions. After the mid-1980s, the key regions in which precipitation was affected by AO in East Asia were central Inner Mongolia and Southern China. The mechanism of precipitation changes can be attributed to changes in atmospheric circulation and water vapor transport related to AO changes. After the mid-1980s, the influence of AO on geopotential height over northern East Asia weakened; meanwhile, the impact of AO on geopotential height over China increased. Consistent with the changes in atmospheric circulation, water vapor transport in East Asia also underwent interdecadal changes before and after the mid-1980s. The differences in atmospheric circulation and water vapor transport in East Asia can be traced back to the North Atlantic. Before the mid-1980s, wave activity flux related to summer AO tended to propagate in high latitudes and subtropics; after the mid-1980s, the wave activity flux changed in its subtropical path and propagated eastward from the North Atlantic through the Middle East to China, significantly affecting the summer precipitation in China. [ABSTRACT FROM AUTHOR]

Two new species of the thread-legged bug genus Ademula McAtee & Malloch, 1926 (Hemiptera: Reduviidae: Emesinae: Emesini, formerly Ploiariolini) from China, A. callipennis, new species, and A. corniculata, new species, are described and illustrated in the present paper. COI barcodes of these two new species and an updated key to the Oriental species of Ademula are provided. The distribution of Ademula in East and Southeast Asia is briefly discussed. [ABSTRACT FROM AUTHOR]

How do African migrants become stuck-in-place and experience stuckedness in China? This article interrogates the concepts of stuckedness and social navigation to examine what it means to be 'stuck-in-place' using the stories of four Nigerians—a woman and three men—in Guangzhou City. Two modes of stuckedness were observed: 'truncational stuckedness' and 'identity stuckedness'. While the former resulted from being spatially stuck in Guangzhou on their way to South Korea and Hong Kong, the latter was a product of identity appropriation, where a migrant uses the passport of another country. Despite the constraint of stuckedness and the precarity that those without valid immigration papers faced, migrants managed to reinterpret their situations and stayed put while being opened to emplacement in Guangzhou—albeit a transitory kind. In calibrating their practice of 'moving on' in Guangzhou, however, economic integration, the local and transnational networks of migrants, hope, prolonging one's stay and management of micro-mobilities of the everyday were deployed singly or in combination with one another. The article advances debates in China-African relations and Afro-mobilities in East Asia while also contributing to discourses on migrant trajectories, stuckedness, and mobilities studies. [ABSTRACT FROM AUTHOR]

East Asian developmentalism is often depicted as a derivative ideology with its origins in the diffusion of Western thought to the region, first to Japan after the 1868 Meiji Restoration and then to the rest of the region in the twentieth century following the Japanese example. Recent scholarship has challenged that perspective by highlighting important endogenous roots of the developmentalist ideology of Meiji Japan. This paper shows that Chinese developmentalism also has deep local origins in China's own intellectual history that long predated the importation of Western (and Japanese) political economy to the country in the early twentieth century. It also demonstrates that locally-originated Chinese developmentalist ideology diffused beyond China's borders in ways that influenced the emergence of 'developmental mindsets' elsewhere in the East Asia region in the nineteenth century, including in Meiji Japan. Rather than being a laggard in the regional embrace of developmentalist ideology diffusing from the West, China was a key source and exporter of this ideology to the region. For these reasons, Chinese thinkers deserve a more prominent place in histories of the origins of East Asian developmentalism, and of developmentalist thought in general. [ABSTRACT FROM AUTHOR]

For forty years, the East Asian regional order has delivered widespread peace and prosperity. That order faces possible upending by an economically and militarily more powerful China and a decreasingly robust and engaged United States. While accepting the possibility that such structural shifts could upend the regional order, this paper contends that three powerful counterweights are working to counter disruptive conflicts and to foster peaceful change, namely strong and rising economic interdependence, expanding institutionalization, and active preservation efforts by number of other Asian states, particularly the region's middle powers. This article analyzes the contribution of these three forces to creating the existing order and to their roles in its continuation. [ABSTRACT FROM AUTHOR]

East Asia is exceptionally rich in diverse geological phenomena related to processes of major global significance in Earth history. Its tectonic evolution is closely related to the subduction of the Izanagi and Pacific plates and the India-Eurasia collision. Thus, this domain presents a vast natural laboratory within which some of the most topical and fundamental problems in Pacific-Asian Tectonics can be addressed. Recent breakthroughs in understanding the tectonic evolution of East Asia have been achieved, involving intraplate deformation, plate fragmentation, plate boundary processes, orogenic collapse, and craton destruction. These advances have been achieved via multidisciplinary work including structural geology, basin research, land and marine geophysics, thermochronology, numerical modeling, geochemistry and classical field geology. In the current context of research in East Asia the time is ripe for a thematic volume of review papers. This special issue is focused on the theme "Pacific-Asian Tectonics". It describes interdisciplinary methods adopted to study Meso-Cenozoic basin-forming mechanisms and evolutionary processes, unravels the timing and characteristics of major intraplate deformation, depicts the spatial-temporal distribution of Meso-Cenozoic igneous rocks, discusses the deep lithospheric structures overlying the subducting oceanic plates, and probes the natures and fates of subduction or collision processes. [ABSTRACT FROM AUTHOR]