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Promoting recycling is one of the best effective measures to relieve contradictions such as “waste siege” and resource shortage in China. To do that, quantifying and recognizing the recycling potential (RCP) of recyclable waste (RCW) are foundations. This study quantifies the RCP of RCW (RCP-RCW) in Suzhou, a typical developed city in East China, based on a systematic tracking survey for one week in each season and in different districts starting from the summer of 2011 to the spring of 2017. Results show that Suzhou's RCP-RCW was 92.7 (89.3–96.0), with a 90% confidence interval percentage, among which, recyclable organics and recyclable material (RCM) accounted for 55.1% and 37.6%, respectively. In RCMs, a high RCM recovery value and low RCM recovery value accounted for 64.8% and 26.0%, respectively. RCW generation was 242.4 thousand tons in 2016 and is expected to reach 738.8 thousand tons in 2030. Moreover, spatiotemporal variation of RCW was characterized. Factors, such as local customs and culture, dietary habits, residential lifestyles and consumption structure influence the RCW stream generation. All the obtained results can improve the knowledge base for effectively promote recycling, and contribute to making governmental policy and the recycling industry's business development in Suzhou and other Chinese cities.

Acupuncture has a good curative effect in the treatment of gastrointestinal system diseases, such as functional dyspepsia, ulcerative colitis, and constipation. The central nuclei which are involved in the mechanism of acupuncture in regulating the gastrointestinal system have become a research hotspot in recent years. In the present paper, the authors summarized the effect of acupuncture and the central nervous system on gastrointestinal function regulation. It was found that the regulation of gastrointestinal function by acupuncture involved many brain regions such as the amygdala, paraventricular nucleus, locus coeruleus, raphe nucleus, and dorsal nucleus of the vagus nerve. Of these, the limbic brain region had the closest relation. However, the included studies were animal experiments, which involved less research on nuclear group interactions. The role of central nuclei in the regulation of gastrointestinal function by acupuncture is unclear. Thus, the introduction of more advanced brain imaging techniques to observe brain dysfunction of central nuclei and the relativity of acupuncture in regulating gastrointestinal function will be the focus in the future study, which will contribute to determining the effective mechanism of acupuncture and moxibustion.