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Your search keyword '"Ren, Yucheng"' showing total 3 results
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3 results on '"Ren, Yucheng"'

1. The association between maternal tea consumption and the risk of pregnancy induced hypertension: A retrospective cohort study in Lanzhou, China.

Author

Li, Lanlan, Tan, Jianwei, Dai, Wei, Wang, Baolin, Bai, Yang, Ren, Yucheng, Liu, Qing, and Zhang, Yawei

Subjects
QUESTIONNAIRES, RETROSPECTIVE studies, HYPERTENSION in pregnancy, LONGITUDINAL method, TEA, PREECLAMPSIA
Abstract

Background: Existing evidence on the relationship between maternal tea consumption and pregnancy induced hypertension (PIH) is inconclusive. This study aimed to evaluate the association between maternal tea consumption and the risk of PIH.Methods: This study analysed the data of women without chronic hypertension who participated in a retrospective birth cohort study conducted from 2010 to 2012 at the Gansu Provincial Maternity and Child Care Hospital in Lanzhou, China. Multivariable logistic regression models were used to estimate the association between tea consumption and the risk of PIH and its clinical subtypes by different tea exposure time windows.Results: Among the 10,452 women included in this study, tea consumption during pregnancy was significantly associated with an increased risk of PIH (odds ratio [OR] = 1.44, 95 % confidence interval [CI]: 1.01, 2.05), gestational hypertension (OR = 1.86, 95 % CI: 1.07, 3.21), and early-onset preeclampsia (OR = 2.93, 95 % CI: 1.21, 7.09). This was especially the case with black tea (OR = 3.57, 95 % CI: 1.67, 7.62).Conclusions: Tea consumption during pregnancy might be associated with an increased risk of PIH, gestational hypertension, and early-onset preeclampsia. These findings have important implications for public health in reducing the PIH. [ABSTRACT FROM AUTHOR]

Published
2022
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2. Determining optimal gestational weight gain (GWG) in a northwest Chinese population

Author

Bai, Yang, Li, Lanlan, Wang, Baolin, Qiu, Jie, Ren, Yucheng, He, Xiaochun, Li, Yilin, Jia, Yanfeng, He, Chunxiao, Cui, Hongmei, Lv, Ling, Lin, Xiaojuan, Zhang, Chong, Zhang, Honghong, Xu, Ruifeng, Liu, Qing, and Luan, Hua

Subjects
Adult, China, pregnancy outcomes, Pregnancy Outcome, Observational Study, Overweight, Gestational Weight Gain, Body Mass Index, Young Adult, Thinness, Pregnancy, Reference Values, gestational weight gain, Infant, Small for Gestational Age, prepregnancy body mass index, Humans, Female, Chinese population, Research Article, Maternal Age, Retrospective Studies
Abstract

To determine optimal gestational weight gain (GWG) for the Chinese population. Live singleton deliveries at the largest maternal & childcare hospital in northwest China from 2010 to 2012 were analyzed retrospectively. Multivariable logistic regression analysis was conducted to determine the lowest aggregated risk of interested perinatal outcomes based on Chinese adult body mass index (BMI) categories. Eight thousand eight hundred seventy enrolled parturients were divided into 4 groups according to their prepregnancy BMI: underweight (21.31%, BMI

Published
2021

3. Review of Theoretical Research and Engineering Practice for Demand Response Market Mechanisms and Its Suggestions for China

Author

Ren Yucheng, Zhang Teng, Cao Xiaodong, Shao Junjun, and Xie Kang

Subjects
Power (social and political), Demand response, Electric power system, Market mechanism, State (polity), media_common.quotation_subject, Business, China, Monopoly, Mechanism (sociology), Industrial organization, media_common
Abstract

As a substitute for the traditional generator units, the demand side resources can participate in peak-cutting and valley-filling in the power system by changing their operating power, which is called demand response (DR). The DR market mechanism will play a significant role in guiding power users to actively participate in DR. For a long time in the past, Chinese DR practice mainly relied on administrative methods. These methods have adapted to the monopoly power market environment, but it is difficult to adapt to the current state of the power system reform. Based on this background, this paper first summarizes the widely- used price-based DR market mechanism and incentive-based DR market mechanism. Besides, the point-based market mechanism recently proposed is analysed. Then, based on the theoretical research of the market mechanism, the DR engineering practice in the United States, Europe and China is introduced. The point-based market mechanism practice in Jiangsu Province is focused on. The advantages and disadvantages of each market mechanism are analysed. Finally, according to the current development situation of China’s power market, the suggestions about the DR mechanism are put forward for China.

Published
2020

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