Suchergebnisse

AbstractExisting research on inter‐regional capital flows commonly applied the proxy simulation method based on the location of financial firms in static snapshots, and took cities' centrality as the research object when discussing network influencing factors. It remains unclear how inter‐regional capital flow networks are present actually and how city‐dyad linkages are shaped. Based on real investment connections between listed firms and their investees in Yangtze River Delta (YRD) from 2005 to 2019, this study provides fresh insights into the spatial pattern and influencing factors of intercity capital flows from the perspective of dynamic urban bilateral relations. Results indicate that the network in the YRD is in the transition stage of provincial integration and cross‐border integration. The central and western regions of the YRD are the current network "depression districts", with cities in Anhui forming an independent network. The physical spatial scale of the origin city was the most robust facilitator of capital outflow, but it is not evident that obvious node attributes can match the destination city. Cultural proximity and functional proximity effectively promoted the shape of investment connections, but they also reflected the lack of long‐distance intercity links and cross‐border links. The establishment of metropolitan areas with overlapping members and the joint construction of industrial circles, living circles and transportation circles within metropolitan areas are effective ways to facilitate intercity capital flows in YRD.

Assessing passenger satisfaction is essential to enhancing loyalty and increasing ridership on high speed rail (HSR). Many studies explore passenger satisfaction with transit and conventional railway, but there are only a few that look at HSR. Although the HSR studies provide information on the relationship between service quality and passenger satisfaction, few identify the attributes that have the largest impact or improvement priorities for existing HSR. This study employs multivariate regression and importance-performance analysis to identify influential attributes and service improvement priorities for the Shanghai-Nanjing HSR. We found that the most important correlates of passenger satisfaction were staff attitudes, convenience of ticket purchase, and ease of the access trip. In general, passengers are satisfied with HSR services, especially with the attributes that are critical to overall HSR satisfaction. However, we found that improving toilet sanitation and seat comfort on the Shanghai-Nanjing HSR would increase passenger satisfaction.

From the perspective of internet information production (IIP) and internet information consumption (IIC), we interpreted the spatial patterns of the internet industry in China based on top commercial websites. The findings demonstrated more obvious industrial clustering compared with that in Western countries, highlighting the rise of internet cities in China. The differences amongst diverse website themes generate disparities between IIP and IIC, suggesting future developmental trends of these internet cities. The specialised division of internet cities remains somewhat consistent with the local context. The government plays a key role in the early stage of China's internet industry, enabling cities involved in internet industry at the initial stage gains first-mover advantages, leading to the uneven patterns of spatial patterns since then. Though the role of government in the development of internet industry should still be emphasised, the success of internet cities finally depends on whether their specialisation meets the market demand.

Cordyceps militaris is a crude dietary therapeutic mushroom with high nutritional and medicinal values. Mushroom-derived polysaccharides have been found to possess antihyperglycemic and antihyperlipidemic activities. This study aimed to partially clarify the structural characterization and comparatively evaluate hypolipidemic potentials of intracellular- (IPCM) and extracellular polysaccharides of C. militaris (EPCM) in high fat diet fed mice. Results indicated that IPCM-2 is α-pyran polysaccharide with an average molecular weight of 32.5 kDa, was mainly composed of mannose, glucose and galactose with mass percentages of 51.94%, 10.54%, and 37.25%, respectively. EPCM-2 is an α-pyran polysaccharide with an average molecular weight of 20 kDa that is mainly composed of mannose, glucose and galactose with mass percentages of 44.51%, 18.33%, and 35.38%, respectively. In in vivo study, EPCM-1 treatment (100 mg kg(−1) d(−1)) showed potential effects on improving serum lipid profiles of hyperlipidemic mice, reflected by decreasing serum total cholesterol (TC), triglyceride (TG) and low density lipoprotein-cholesterol (LDL-C) levels by 20.05%, 45.45% and 52.63%, respectively, while IPCM-1 treatment (100 mg kg(−1) d(−1)) remarkably decreased TC, TG and LDL-C levels by 20.74%, 47.93%, and 38.25%, respectively. In addition, EPCM-1 ameliorated hyperlipidemia possibly through upregulating the expression of serum lipoprotein lipase (LPL) and down-regulating the expression of hepatic 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR), as determined by enzyme-linked immunosorbent assay (ELISA) method, while IPCM-1 remarkably upregulated the expression of serum LPL. This study confirms polysaccharides from C. militaris could be explored as functional foods or natural medicines for preventing hyperlipidemia.

This paper is an empirical study examining the trends of spatial polarization under the new regime of the socialist-market system in Guangdong province in south China. It was found that a regional polarization process toward the core Zhujiang Delta region has occurred. The roles of old central cities such as Shaoguan, Zhanjiang, and Shantou outside the core region have been gradually weakened while some emerging cities such as Shenzhen, Zhuhai, Zhongshan, Shunde, Nanhai, and Panyu in the core region have become strong growth centers. The dominant role of Guangzhou, established in the prereform planning system, has also been significantly weakened in the postreform period. Among the forces of development from above, below, and outside, local government revenue and savings per capita were found to be the key factors determining the level of development in various localities, confirming the key role of 'local state corporatism' in regional development in China.

Developing 15-minute cities, where people can access to living essentials within a 15-minute trip, has become a global effort. In addition to practical exercise, researchers have paid attention to the evaluation of 15-minute cities using home-based accessibility approaches. However, existing approaches do not account for human mobility, an important indicator of how people access and interact with urban amenities. In this study, we propose a novel network-based framework that assesses a 15-minute city considering human mobility patterns. We assume that there exists an optimal mobility network, which would maximize human mobility under the constraints of the current distribution of amenities. Locations where the provision of urban amenities does not match local needs are first identified based on the comparison between optimal mobility patterns and their actual counterparts. Built environment, demographic, and network structure factors that contribute to identified mismatch issues are then examined. The empirical study of Nanjing, China, suggests that the proposed framework could enable a dynamic evaluation of 15-minute cities and could provide important insights on policies and intervention strategies of planning and developing 15-minute cities.