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New medical risks affecting obstetrics after implementation of the two-child policy in China
Qiang Li, Dongrui Deng
Frontiers of Medicine 2017, Volume 11, Issue 4, Pages 570-575 doi: 10.1007/s11684-017-0552-5
China recently instituted a two-child policy in response to its aging population, declining workforce and demographic dividend, and the need to develop asocial economy. Additionally, women generally delay having a second child because of the overwhelming pressure in their lives. With the improvements in assisted fertility technologies in recent years, the number of elderly women attempting to bear children has increased. The quality of woman’s eggs and a man’s sperm declined dramatically with increasing age, leading to an increased risk of pregnancy-related complications among older women. Therefore, the types of fertility problems experienced by elderly females must be provided with considerable attention by obstetricians. This commentary article focuses on the medical problems faced by older second-child pregnant women. This work discusses their increased rates of infertility, spontaneous abortion, fetal malformation, gestational diabetes, cesarean section, placenta previa, postpartum hemorrhage, postpartum depression, and hypertensive disorders, which complicate pregnancy.
Keywords: two-child policy birth defects cesarean delivery placenta previa
Zhao Yufeng,Xie Wei,Pei Dan,Wang Qijun, Zhang Lihua,Duan Yuqiu ,Li Qin ,Liu Yanli1, Wang Ying
Strategic Study of CAE 2015, Volume 17, Issue 6, Pages 36-40
Keywords: disabled children birth defects health examination before pregnancy reproduction intervention
Yu Jiang,Shan Xiangting,Wang Jun and Xie Jinrong
Strategic Study of CAE 2014, Volume 16, Issue 5, Pages 52-55
Keywords: eugenic health check risk factors birth defects
Tomographic diagnosis of defects in hydraulic concrete structure
ZHAO Mingjie, XU Xibin
Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3, Pages 226-232 doi: 10.1007/s11709-008-0027-5
Keywords: satisfactory processing orientation tomographic diagnosis orientation perpendicular
Advancing pediatric care before birth
Frontiers of Medicine 2023, Volume 17, Issue 2, Pages 352-354 doi: 10.1007/s11684-022-0974-6
Automated classification of civil structure defects based on convolutional neural network
Pierclaudio SAVINO, Francesco TONDOLO
Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2, Pages 305-317 doi: 10.1007/s11709-021-0725-9
Keywords: concrete structure infrastructures visual inspection convolutional neural network artificial intelligence
Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1755-1764 doi: 10.1007/s11705-023-2318-8
Keywords: oxygen evolution reaction porous carbon nanosheets Co nanoparticles edge-induced topological defects
Thermal reffusivity: uncovering phonon behavior, structural defects, and domain size
Yangsu XIE, Bowen ZHU, Jing LIU, Zaoli XU, Xinwei WANG
Frontiers in Energy 2018, Volume 12, Issue 1, Pages 143-157 doi: 10.1007/s11708-018-0520-z
Keywords: thermal reffusivity theory phonon behavior structure defects structural thermal domain (STD) size 2D
Determining casting defects in near-net shape casting aluminum parts by computed tomography
Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER
Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 48-52 doi: 10.1007/s11465-018-0493-y
Keywords: near-net shape casting aluminum parts casting defects low pressure die casting die casting semi-solid
Detection of solder bump defects on a flip chip using vibration analysis
Junchao LIU, Tielin SHI, Qi XIA, Guanglan LIAO
Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1, Pages 29-37 doi: 10.1007/s11465-012-0314-7
Keywords: flip chip defect detection ultrasonic excitation vibration analysis
Diagnosis of sewer pipe defects on image recognition of multi-features and support vector machine in
Xiangyang Ye, Jian’e Zuo, Ruohan Li, Yajiao Wang, Lili Gan, Zhonghan Yu, Xiaoqing Hu
Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1102-y
An image-recognition-based diagnosis system of pipe defect types was established. 1043 practical pipe images were gathered by CCTV robot in a southern Chinese city. The overall accuracy of the system is 84% and the highest accuracy is 99.3%. The accuracy shows positive correlation to the number of training samples.
Keywords: Sewer pipe defects Defect diagnosing Image recognition Multi-features extraction Support vector machine
Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1, Pages 93-101 doi: 10.1007/s11705-022-2175-x
Keywords: g-C3N4 nitrogen defect sulfur doping photodegradation plasma
Loss of liver kinase B1 causes planar polarity defects in cochlear hair cells in mice
Yuqin Men,Aizhen Zhang,Liwen Zhang,Yecheng Jin,Zhishuo Wang,Jing Zhao,Xiaolin Yu,Jian Zhang,Jiangang Gao
Frontiers of Medicine 2016, Volume 10, Issue 4, Pages 481-489 doi: 10.1007/s11684-016-0494-3
The tumor suppressor gene liver kinase B1 (LKB1), also called STK11, encodes a serine/threonine kinase. LKB1 plays crucial roles in cell differentiation, proliferation, and polarity. In this study, LKB1 conditional knockout mice (LKB1Pax2 CKO mice) were generated using Pax2-Cre mice to investigate the function of LKB1 in inner ear hair cells during early embryonic period. LKB1Pax2 CKO mice died perinatally. Immunofluorescence and scanning electron microscopy revealed that stereociliary bundles in LKB1Pax2 CKO mice were clustered and misoriented, respectively. Moreover, ectopic distribution of kinocilium bundles resulting from abnormal migration of kinocilium was observed in the mutant mice. The orientation of stereociliary bundles and the migration of kinocilia are critical indicators of planar cell polarity (PCP) of hair cells. LKB1 deficiency in LKB1Pax2 CKO mice thus disrupted hair cell planar polarity during embryonic development. Our results suggest that LKB1 is required in PCP formation in cochlear hair cells in mice.
Keywords: LKB1 stereociliary bundles kinocilium planar cell polarity hearing mice
Zheng AO, Chengfa ZHAO, Yanmin GAN, Xiao WU, Junsong SHI, Enqin ZHENG, Dewu LIU, Gengyuan CAI, Zhenfang WU, Zicong LI
Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 1, Pages 54-60 doi: 10.15302/J-FASE-2018249
Wei Xiong, Susu Zhou, Zeyong Zhao, Fang Hao, Zhihui Cai, Pingle Liu, Hailiang Zhang, Hean Luo
Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4, Pages 998-1007 doi: 10.1007/s11705-020-1994-x
Keywords: nitrogen and phosphorus doping non-noble nickel catalyst aromatic compounds hydrogenation
Title Author Date Type Operation
New medical risks affecting obstetrics after implementation of the two-child policy in China
Qiang Li, Dongrui Deng
Journal Article
Analysis of the disabled child data of Lianyungangcity and the effect research of re-birth parents intervened
Zhao Yufeng,Xie Wei,Pei Dan,Wang Qijun, Zhang Lihua,Duan Yuqiu ,Li Qin ,Liu Yanli1, Wang Ying
Journal Article
Analysis of the progestational eugenic result for agro-pastoralist and floating population in some areas of Urumqi
Yu Jiang,Shan Xiangting,Wang Jun and Xie Jinrong
Journal Article
Tomographic diagnosis of defects in hydraulic concrete structure
ZHAO Mingjie, XU Xibin
Journal Article
Automated classification of civil structure defects based on convolutional neural network
Pierclaudio SAVINO, Francesco TONDOLO
Journal Article
“Charging” the cigarette butt: heteroatomic porous carbon nanosheets with edge-induced topological defects
Journal Article
Thermal reffusivity: uncovering phonon behavior, structural defects, and domain size
Yangsu XIE, Bowen ZHU, Jing LIU, Zaoli XU, Xinwei WANG
Journal Article
Determining casting defects in near-net shape casting aluminum parts by computed tomography
Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER
Journal Article
Detection of solder bump defects on a flip chip using vibration analysis
Junchao LIU, Tielin SHI, Qi XIA, Guanglan LIAO
Journal Article
Diagnosis of sewer pipe defects on image recognition of multi-features and support vector machine in
Xiangyang Ye, Jian’e Zuo, Ruohan Li, Yajiao Wang, Lili Gan, Zhonghan Yu, Xiaoqing Hu
Journal Article
Tuning nitrogen defects and doping sulfur in carbon nitride for enhanced visible light photocatalytic
Journal Article
Loss of liver kinase B1 causes planar polarity defects in cochlear hair cells in mice
Yuqin Men,Aizhen Zhang,Liwen Zhang,Yecheng Jin,Zhishuo Wang,Jing Zhao,Xiaolin Yu,Jian Zhang,Jiangang Gao
Journal Article
Comparison of birth weight and umbilical and placental characteristics of cloned and artificial insemination-derived
Zheng AO, Chengfa ZHAO, Yanmin GAN, Xiao WU, Junsong SHI, Enqin ZHENG, Dewu LIU, Gengyuan CAI, Zhenfang WU, Zicong LI
Journal Article