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.

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.