Short-Term Effects of Ambient Air Pollutants on Outpatient Visits for Childhood Allergic Diseases in Shanghai, China

Hu, Yi; Gu, Jianlei; Wu, Dan; Wang, Xiaolei; Hui, Lisa; Yu, Guangjun

doi:10.1007/s12204-022-2454-1

Cited by 3 publications

(4 citation statements)

References 77 publications

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“…As the institute expanded, the team size grew, with notable collectors including Y.Tsiang, C.L.Tso, N.K.Chun, C.Wang, S.P.Ko, F.C.How, and others ( Table 6 ). This period marked the transition to large-scale collection efforts, with numerous specimens being gathered in Guangzhou between 1928 and 1936 by these collectors and their teams [ 17 ].…”

Section: Brief History Of Plant Collection In Guangzhou City and Its ...mentioning

confidence: 99%

Statistics and Analysis of Digital Information on Vascular Plant Specimens and the History of Plant Collecting in Guangzhou, China

Liang,

Qin

2023

Plants

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This paper presents a comprehensive analysis of digitized specimen data and relevant literature to investigate the vascular plant diversity in Guangzhou City, China. Specimen data were collected from various sources, including the China Digital Herbarium (CVH), the National Specimen Resource Sharing Platform (NSII), Global Plants on JSTOR, and the Global Biodiversity Information Facility (GBIF). Following data standardization, the study identified 41,890 vascular plant specimens, encompassing 248 families, 1563 genera, and 4536 species, including subspecies and cultivated plants. Among them, the native plants of Guangzhou city accounted for 60.6% of the species. The temporal analysis identified three distinct peaks in specimen collection: 1916–1920, 1928–1936, and 1950–1964. Collection activities were primarily concentrated between the months of April and November. The distribution of collected specimens exhibited significant variation among different species, with families such as Fabaceae, Poaceae, and Myrtaceae having the highest number of specimens. Similarly, genera such as Eucalyptus, Ficus, and Citrus were well-represented. The most frequently collected species included Litchi chinensis, Eucalyptus robusta, and Cycas taiwaniana. Remarkably, 21 species had specimen counts exceeding 100. Unfortunately, approximately three-quarters of the species had fewer than 10 recorded specimens. Alarmingly, 1220 species were represented by only one specimen. Geographically, the majority of specimens originated from the former suburbs of Guangzhou, Conghua Delta Mountain, and Liuxi River areas, while other regions had limited representation. In terms of specimen collections, the Herbarium of South China Botanical Garden of the Chinese Academy of Sciences (IBSC) recorded the highest number of specimens (13,828 specimens), followed by the Tree Herbarium of South China Agricultural University (CANT; 3869 specimens) and the Herbarium of Sun Yat-sen University (SYS; 3654 specimens). The collection history in Guangzhou spans nearly 300 years and can be broadly divided into two distinct periods. The first period extends from the late 13th century to 1949, primarily encompassing the collection efforts of foreign visitors in Guangzhou, and represents the pioneering phase of plant taxonomy research in China. The second period, from 1949 to the present, is characterized by extensive investigations and collection activities conducted by local scholars, with a specific emphasis on native plant resources. By meticulously organizing and verifying information derived from historical documents and specimens, the paper effectively summarizes the plant collection and research history of Guangzhou, providing detailed profiles of the key collectors. These findings furnish reliable historical reference materials for the study of plant taxonomy and diversity in Guangzhou.

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Section: Brief History Of Plant Collection In Guangzhou City and Its ...mentioning

confidence: 99%

Statistics and Analysis of Digital Information on Vascular Plant Specimens and the History of Plant Collecting in Guangzhou, China

Liang,

Qin

2023

Plants

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“…[28] The polymer's quality mainly depends on the degree of polymerization, which can be calculated by the intrinsic viscosity. [29] Therefore, predicting the intrinsic…”

Section: The Background and Motivationmentioning

confidence: 99%

“…In addition, we use the running time to measure the predictive efficiency.We use the CS algorithm to optimize the parameters a, b, and α in the hybrid Copula function. The fitness function and constraints are shown in Equation(29).…”

mentioning

confidence: 99%

Online prediction based on the Copula function for the intrinsic viscosity of polyester fibre

et al. 2022

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The polymerization process, as the starting point of polyester fibre production, directly affects the fibre properties. However, the polymerization process has complex reaction mechanisms and involves many variables, making online modelling more challenging. In this paper, we introduce the Copula function into the modelling of the polymerization process. First, a feature selection method based on kernel principal component analysis (KPCA)-Copula is proposed, and then, the Copula function to obtain the nonlinear characteristics among the variables is used. On this basis, an online prediction model of intrinsic viscosity based on just-in-time learning (JITL) was established, that is, empirical Copula-JITL. In order to improve the computational efficiency of the empirical Copula-JITL, the t-Copula function is introduced. Furthermore, by combining the t-Copula function with the empirical Copula function, we get a JITL model based on the hybrid Copula function, that is, hybrid Copula-JITL. Finally, actual polymerization process data collected from fibre production are provided to demonstrate the effectiveness of the proposed algorithms.

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“…While there are no unanimous conclusions about the difference in yield and quality of vegetables under various cultivation modes. Several studies have found that compared to soil cultivation, substrate cultivation could increase the yield and overall quality of green vegetables and spinach [4], and hydroponic cultivation elevated the vitamin C content and reduced nitrate content of lettuce [5]. However, Roman cauliflower cultivated in substrate cultivation had lower fresh weight and soluble solids content than those cultivated in soil [6].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Leaf Vegetable Productivity, Quality, and Profitability among Different Cultivation Modes: A Case Study

Zha,

Wang,

Huang

et al. 2023

Agronomy

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In recent years, vegetable production has been in the transitional stage from traditional cultivation mode to modern cultivation mode. Therefore, evaluating the actual productivity and economic benefits of different cultivation modes is instructive for leafy vegetable production. This research chose a vegetable production company (Shanghai, China) as a demonstration case to cultivate various leaf vegetables under different cultivation modes (hydroponic, substrate, and soil cultivation). By investigating the yield and quality of vegetables, as well as all production costs and selling prices, we drive a comparative evaluation of comprehensive features and economic benefits of different cultivation modes. The results showed that leafy vegetables cultivated by hydroponic mode gain the highest fresh weight at the early growth stage, but the greatest unit yield (0.98~1.21 kg·m−2) emerged under the soil cultivation mode. Vegetables grown under substrate mode had the best comprehensive quality with high soluble solids content and low nitrate content. The unit costs of the soilless cultivation modes (8.26~10.3 CNY·m−2) were 3–4-fold higher than that of soil cultivation, mainly due to the high fixed costs and input costs, especially for substrate mode. According to actual prices, the soil cultivation mode had the highest economic benefits as a whole (4.83~8.83 CNY·m−2), and only hydroponic cabbage which had comparable yield gained considerable benefits (8.94 CNY·m−2). Quality-based pricing scheme can make substrate mode achieve profitability. The pricing scheme that guarantees a 40% revenue is within acceptable limits for consumers. Based on this actual production case, it can be concluded that a low unit yield of hydroponic mode and a high unit cost of substrate mode are the predominant factors affecting their profitability and economic viability.

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Short-Term Effects of Ambient Air Pollutants on Outpatient Visits for Childhood Allergic Diseases in Shanghai, China

Cited by 3 publications

References 77 publications

Statistics and Analysis of Digital Information on Vascular Plant Specimens and the History of Plant Collecting in Guangzhou, China

Statistics and Analysis of Digital Information on Vascular Plant Specimens and the History of Plant Collecting in Guangzhou, China

Online prediction based on the Copula function for the intrinsic viscosity of polyester fibre

Comparative Analysis of Leaf Vegetable Productivity, Quality, and Profitability among Different Cultivation Modes: A Case Study

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