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Copyright of Tunnel Construction / Suidao Jianshe (Zhong-Yingwen Ban) is the property of Tunnel Construction Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of the Chinese Society of Rare Earths is the property of Editorial Department of Journal of the Chinese Society of Rare Earths and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Telecommunication Engineering is the property of Telecommunication Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal on Communication / Tongxin Xuebao is the property of Journal on Communications Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To analyze the effect of gestational diabetes mellitus (GDM) on maternal and neonatal outcomes in twin pregnancies. Methods A retrospective cohort study was conducted on 772 cases of dichorionic twin pregnancies delivered in Beijing Haidian Maternal and Child Health Hospital from January 2013 to October 2019. The general clinical characteristics and the maternal and neonatal outcomes were collected, including age, parity, gestational weeks, mode of conception, delivery mode and the maternal and neonatal complications. According to the results of 75 g oral glucose tolerance test (OGTT) on gestational age 24-28 weeks, the subjects were divided into GDM group (157 cases) and normal glucose tolerance (NGT) group (615 cases). The glycated hemoglobin A1c (HbA1c) was tested among 137 GDM women. The GDM women were classified into two groups: the uncontrolled GDM group with HbA1c≥5.5% (25 cases) and well-controlled GDM group with HbA1c<5.5% (112 cases). The t test, rank sum test, χ2 test and Fisher exact probability method were used for comparison between groups. Results The age of GDM group was statistically significant older than that of NGT group (P<0.001). There were more women aged over 35 years in GDM group than in NGT group [28.0% (44/157) vs. 17.1% (105/615), P=0.002]. Women with GDM were significantly more obese before pregnancy than the NGT women (P=0.002). Whereas there was no significant difference in gestational weeks, cesarean section rate, premature birth rate between the two groups. There was no difference between GDM and NGT groups in the incidence of fetal growth restriction, hypertensive disorders of pregnancy, premature rupture of membranes, placental abruption, postpartum hemorrhage, neonatal low birthweight, neonatal respiratory distress, neonatal malformation or dysplasia neonatal death or admission to neonatal ward (P> 0.05). Compared with the NGT group, the well-controlled GDM group and the uncontrolled GDM group, there was no significant difference in gestational weeks, cesarean section rate, premature birth rate, and incidence of fetal growth restriction, hypertensive disorders of pregnancy, premature rupture of membranes, placental abruption, postpartum hemorrhage (P>0.05). However, the incidence of premature birth, fetal growth restriction and premature rupture of membranes increased in the uncontrolled GDM group, without statistical significance (P>0.05), and no significant difference in the neonatal outcomes among them (P>0.05). Conclusion In this study, GDM did not increase the maternal and neonatal adverse outcomes in women with twin pregnancies. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Shenyang Agricultural University is the property of Journal of Shenyang Agricultural University Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

妊娠期高血糖包括妊娠期糖尿病、妊娠期显性糖尿病及孕前糖尿病，可对母婴围产期和 远期健康带来诸多不利影响。本文对近年来妊娠期血糖综合管理研究概况进行评述, 并着重阐述血 糖管理的新技术和新手段(如持续葡萄糖监测、持续皮下胰岛素输注、人工胰腺、基于互联网平台的团 队医疗模式等)在妊娠期血糖管理中的优势、局限性及未来展望. [ABSTRACT FROM AUTHOR]

Copyright of Telecommunication Engineering is the property of Telecommunication Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Telecommunication Engineering is the property of Telecommunication Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To investigate risk factors for glucose metabolism disorder at postpartum in women with gestational diabetes mellitus (GDM). Methods In this prospective Cohort study, women with GDM were enrolled in Peking University Third Hospital from January 2016 to December 2017 and evaluated with 75 g oral glucose tolerance test at 6 to 12 week and 1 year follow‑up at postpartum. The main outcome was glucose metabolism disorder, including impaired fasting glucose (IFG), impaired glucose tolerance (IGT) and type 2 diabetes mellitus (T2DM). Kaplan‑Meier survival analysis and Cox multivariate regression analysis were used to determine the independent risk factors for glucose metabolism disorder in women with GDM after their delivery. Results A total of 923 women with GDM were screened and 267 were enrolled for this study. Among the eligible participants, 244 (91.4%) and 160 (60.0%) women completed the 12 week and 1 year follow‑up, respectively. In this study, 24(9.8%) GDM women developed T2DM, 6 (2.5%) developed IFG and 89 (36.5%) had IGT during the one year follow‑up. Pregestational overweight (HR 1.519, 95%CI 1.017 to 2.267) and 1 h blood glucose ≥10.1 mmol/L during the GDM diagnosis (HR 1.546, 95%CI 1.011 to 2.365) were the two independent risk factors for glucose metabolism disorder at postpartum in women with GDM. Conclusions Pregestational overweight and 1 h blood glucose ≥10.1 mmol/L during the GDM diagnosis are the important predicting factors for glucose metabolism disorder at postpartum in women with GDM. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Diabetes Mellitus is the property of Chinese Journal of Diabetes Mellitus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Diabetes Mellitus is the property of Chinese Journal of Diabetes Mellitus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Diabetes Mellitus is the property of Chinese Journal of Diabetes Mellitus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Industrial Minerals & Processing / Huagong Kuangwu yu Jiagong is the property of Industrial Minerals & Processing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to compare the characteristics of PM2.5 and PM10 transported by different types of pipelines, the C F D numerical simulation method is adopted to model the transport pipeline of a certain ore dressing plant. Based on the gas-solid two-phase flow theory, the erosion rate value of circular and square tubes at different wind speeds was simulated by Fluent software. The results show that the appearance position of the maximum erosion rates of PM2.5 and PM10 on the pipeline wall is that the circular pipe is dispersed and the square pipe is more concentrated and at the inlet end of the pipe. Both the maximum erosion rate and average erosion rates of the circular tube wall are smaller, the maximum erosion rate of the square pipe wall is 3 -- 6.5 times that of the circular tube pipe wall, so the circular tube can be considered as the transport part. PM2.5 and PM10 can be transported respectively in round pipe with a speed of 18 and 12 m/s respectively, the maximum erosion rate is respectively 1.8 X 10-12, 1.21 X 10-12 kg/(m 2 • s). The changing trend of the wall maximum erosion rate of PM2.5 is more regular than PM10. [ABSTRACT FROM AUTHOR]

Copyright of China Mechanical Engineering is the property of Editorial Board of China Mechanical Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Shenyang Agricultural University is the property of Journal of Shenyang Agricultural University Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Industrial Minerals & Processing / Huagong Kuangwu yu Jiagong is the property of Industrial Minerals & Processing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Shenyang Agricultural University is the property of Journal of Shenyang Agricultural University Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Diabetes Mellitus is the property of Chinese Journal of Diabetes Mellitus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Shenyang Agricultural University is the property of Journal of Shenyang Agricultural University Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agricultural Science & Technology (1008-0864) is the property of Journal of Agricultural Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的　对比观察胸腔镜肺段切除术与肺叶切除术治疗肺部毛玻璃结节（GGO）的效果。方法　选择肺 GGO患者１00 例，根据随机数字表法将其分为肺段组与肺叶组各50 例。两组均采用微创三孔法手术方式治疗，肺 段组游离肺段动静脉血管及肺段支气管；肺叶组确定病灶后，游离肺叶静脉、肺叶支气管、肺叶动脉。观察并比较 两组手术时间、术中出血量、术后苏醒时间、气管拔管时间、引流管留置时间、术后引流量、住院时间、并发症。结果 　肺段组术中出血量、术后苏醒时间、气管拔管时间、术后引流管留置时间、术后引流量、住院时间均少于肺叶组 （P 均＜0.05），两组手术时间比较差异无统计学意义（P >0.05）。两组并发症发生情况比较差异无统计学意义（P >0.05）。结论　胸腔镜肺段切除术治疗肺GGO 较肺叶切除术出血量少、患者苏醒快，且未增加术后并发症。 [ABSTRACT FROM AUTHOR]

Copyright of China Journal of Oral & Maxillofacial Surgery is the property of Shanghai Jiao Tong University, College of Stomatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)