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Significance of highly phosphorylated insulin-like growth factor binding protein-1 and cervical length for prediction of preterm delivery in twin pregnancies

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World Journal of Clinical Cases 2021年第18期9卷 4553-4558页

作者： Rui-Hong Lan Jie Song Hu-Min Gong yang yang Hong yang Lin-Mei Zheng Department of Obstetrics Hainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 570311Hainan ProvinceChina

BACKGROUND A twin pregnancy can carry greater risks than singleton *** 60 in 100 twin pregnancies result in spontaneous birth before 37 wk,which is associated with several complications in the premature *** detection of biomarkers may help to predict the possibility of premature birth so that corresponding interventions can be given to the pregnant women in a timely manner,in order to reduce the risk of preterm birth and improve the outcomes of the newborn *** To explore the clinical value of transvaginal ultrasound measurement of cervical length combined with insulin-like growth factor binding protein-1(IGFBP-1)hyperphosphorylation in cervical secretions as predictors of preterm delivery in twin *** A total of 254 pregnant women with twin pregnancies,who were admitted to Hainan General Hospital and underwent maternity examination,were selected as the study subjects from January 2015 to December *** participants received transvaginal ultrasound measurement of cervical length and phosphorylated IGFBP-1(phIGFBP-1)test between 24 and 34 wk *** pregnancy outcomes were *** Of the women with a positive phIGFBP-1 test result,preterm birth rate was higher in those with a cervical length≤25 mm than those with a cervical length>25 mm(all P25 mm(all P<0.05).The sensitivity,specificity,and positive and negative predictive values of the phIGFBP-1 test combined with the cervical length test were 95.71%,91.21%,95.12%and 92.22%,respectively,for the prediction of preterm *** Cervical length combined with phIGFBP-1 tests is of value for the prediction of outcomes of preterm delivery in twin pregnancies.

关键词： Hyperphosphorylated insulin-like growth factor binding protein-1 Cervical length Ultrasound Twin pregnancies Preterm delivery

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A preliminary study on the lithospheric thermal structure and rheology of the Tibetan plateau

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Earthquake Science 2012年第5期25卷 399-408页

作者： yang Wang Division of Petrology School of Earth Sciences and ResourcesChina University of Geosciences

The lithosphere temperature beneath the Tibetan plateau was estimated by local isostasy equilib- rium constrained geothermal calculation. Maps of the lateral temperature variation at depths of 40 km, 70 km, and Moho are presented for the Tibetan plateau, and the thermal thickness of the lithosphere is also presented. The Tibetan plateau has a warm and thick lithospheres, but the thinner lithospheres are identified in the north- ern Tibet and the eastern margin of the plateau. The warm and soft lithospheres in the Tibetan plateau may represent a snapshot of the early stage of convective thinning of the convergent lithosphere. The ＂creme brulee＂ layering demonstrates the rheological behavior of the Tibetan plateau.

关键词： geotherm isostasy rheology lithosphere Tibetan plateau

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余秋雨的不忏悔与80后的不懂“文革”

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当代文坛 2010年第4期 4-6页

作者：陶东风首都师范大学文学院

本文首先依据哈布瓦赫的集体记忆理论,分析了为什么在"文革"中犯有错误的人不忏悔,以及出生于80、90年代的人对"文革"极度无知且不愿意了解"文革",或认为"文革"与自己、与今天的中国无关。文章认为这不是一个自然现象,而是记忆操控的结... 详细信息

本文首先依据哈布瓦赫的集体记忆理论,分析了为什么在"文革"中犯有错误的人不忏悔,以及出生于80、90年代的人对"文革"极度无知且不愿意了解"文革",或认为"文革"与自己、与今天的中国无关。文章认为这不是一个自然现象,而是记忆操控的结果。本文还依据阿伦特的"平庸的恶"的理论指出,"文革"中的很多恶其实是很多常人都容易犯的"平庸的恶",它是源于作恶者的不思考和盲从。

关键词：哈布瓦赫集体记忆 “文革”记忆阿伦特平庸的恶

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Elastic properties of anatase titanium dioxide nanotubes:A molecular dynamics study

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Chinese Physics B 2019年第10期28卷 292-299页

作者： Kang yang Liang yang Chang-Zhi Ai Zhao Wang Shi-Wei Lin State Key Laboratory of Marine Resource Utilization in South China Sea Hainan UniversityHaikou 570228China School of Materials Science and Engineering Hainan UniversityHaikou 570228China School of Science Hainan UniversityHaikou 570228China

The elastic properties of anatase nanotubes are investigated by molecular dynamics(MD) simulations. Young's modulus, Poisson ratio, and shear modulus are calculated by transversely isotropic structure model. The calculated elastic constants of bulk rutile, anatase, and Young's modulus of nanotube are in good agreement with experimental values, respectively, demonstrating that the Matsui and Akaogi(MA) potential function used in the simulation can accurately present the elastic properties of anatase titanium dioxide nanotubes. For single wall anatase titanium dioxide nanotube, the elastic moduli are shown to be sensitive to structural details such as the chirality and radius. For different chirality nanotubes with the same radius, the elastic constants are not proportional to the chiral angle. The elastic properties of the nanotubes with the chiral angle of 0° are worse than those of other chiral nanotubes. For nanotubes with the same chirality but different radii, the elastic constant, Young's modulus, and shear modulus decrease as the radius increases. But there exist maximal values in a radius range of 10 nm-15 nm. Such information can not only provide a deep understanding of the influence of geometrical structure on nanotubes mechanical properties, but also present important guidance to optimize the composite behavior by using nanotubes as the addition.

关键词： molecular dynamics elastic properties TiO_2 nanotube chiral angle radius

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Quality Management Model for Phase I Clinical Drug Trials:A Structural Equation Model

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Current Medical Science 2020年第3期40卷 586-593页

作者： yang ZHAO Qiu-xia yang Dan WANG Xin-ping ZHANG School of Medicine and Health Management Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China

This study aimed to construct a quality management model for phase I clinical drug trials.A cross-sectional survey was conducted and data were collected from 604 respondents at 69 institutions in China engaged in phase I clinical drug *** and confirmatory factor analyses were used to develop the survey *** equation modeling was used to construct a quality management model for phase I clinical drug *** results showed that the final survey tool had good reliability and validity(Cronbach’sα=0.938,root mean square error of approximation=0.074,comparative fit index=0.962,and Tucker—Lewis index=0.955).The model included five dimensions:government regulation,industry management,medical institution management,research team management,and contract research organization(CRO)*** total,22 measurement items were *** structural equation model indicated government regulation,industry management,medical institution management,and CRO management significantly affected the quality of phase I clinical drug trials(β=0.195,β=0.331,β=0.279,andβ=−0.267,respectively;P<0.05).Research team management had no effect on the quality of trials(β=0.041,P=0.610).In conclusion,the model is valuable for identifying factors influencing phase I clinical drug trials and guiding quality management practices.

关键词： phase I clinical drug trials quality management influence factor structural equation model

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Analysis of Topological Structure in Transiently Chaotic Neural Networks

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Acta Mathematicae Applicatae Sinica 2018年第3期34卷 610-621页

作者： yang GAO Zuo-huan ZHENG Institute of Applied Mathematics Academy of Mathematics and Systems Science Chinese Academy of Sciences

Under the condition that the damping factor is between zero and one, chaotic dynamics is proved to exist in one-dimensional transiently chaotic neural networks by Li-Misiurewicz theorem. This result extends the previous result which is done under the condition that the damping factor is zero. Because the value of damping factor affects the speed of dynamical process of transiently chaotic neural networks, this result provides more complete theoretical basis for applications. Finally, two examples by numerical simulation are given to reinforce and illustrate this result.

关键词： transiently chaotic neural networks Li-Yorke chaos no division

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西三条的“雪”:“雨的精魂”与“战士鲁迅”的新生

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鲁迅研究月刊 2024年第11期 33-40页

作者：蔡洞峰安庆师范大学人文学院 246113

1923年的“兄弟失和”使鲁迅陷入了绝望,离开八道湾后进入西三条居所,开启了新的生活空间。通过西三条时期《野草·雪》的创作实践,可以窥见这一时期鲁迅的生活情境和精神症候,“雨雪之变”揭示出周氏兄弟不同的人生选择和精神境界。“... 详细信息

1923年的“兄弟失和”使鲁迅陷入了绝望,离开八道湾后进入西三条居所,开启了新的生活空间。通过西三条时期《野草·雪》的创作实践,可以窥见这一时期鲁迅的生活情境和精神症候,“雨雪之变”揭示出周氏兄弟不同的人生选择和精神境界。“兄弟失和”后,鲁迅离开传统的大家庭八道湾住所,重启新生的路,并对自我的“伦理温情”和“生之意志”的精神空间进行召唤与重建。这一时期也是鲁迅反抗绝望,开始介入社会现实的时期,是“战士鲁迅”的形成时期。《雪》乃“战士鲁迅”的道成肉身之作。

关键词：《雪》兄弟失和西三条时期战士鲁迅乡愁

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Leakage of an eagle flight feather and its influence on the aerodynamics

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Chinese Physics B 2021年第3期30卷 335-345页

作者： Di Tang Dawei Liu Yin yang yang Li Xipeng Huang Kai Liu College of Mechanical Engineering Zhejiang University of TechnologyHangzhou 310014China High Speed Aerodynamic Institute China Aerodynamics Research and Development CenterMianyang 621000China Chengdu State-Owned Jinjiang Machine Factory Chendu 610043China

We investigate how the barb of bird feathers is changed along both the rachis and *** investigate the microstructures and the mechanical behaviors of barbs,a series of barbs are manually cut from an eagle’s primary feather to observe the cross sections.Aλ-like cross section with a tiny hook is observed at the right feet at each ***,a measurement of the setup system is developed to evaluate the leakage ratio of a feather followed by a numerical predicting approach based on the CFD *** is found that the air leakage increases linearly against the pressure,and the predicted results coincide well with the experimental ***,the influences of leakage of the flight feather on both steady and unsteady aerodynamics are studied.

关键词： biomaterial feather leakage large prey microstructure barbules cross-section aerodynamics

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USING FINITE GEOMETRIES TO CONSTRUCT 3-PBIB(2) DESIGNS AND 3-DESIGNS

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Applied Mathematics(A Journal of Chinese Universities) 1994年第3期9卷 291-297页

作者： yang Benfu Department of Mathematics Chengdu Teachers College 611930 Chengdu

The concept if t-PBIB design was introduced by Wei Wandi and yang Benfu as a generalization of t-design and PBIB design. In this paper, a number of 3-association schemes and 3-PBIB(2) designs are constructed on the bases of the finite vector space over Fq and the finite unitary geometry over Fq2. Then a number of 3-designs are constructed on the bases of the finite orthogonal geometries over Fq. The parameters of all these designs are computed.

关键词： Finite geometry design.

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Structural Changes of Activated Carbon Electrodes for EDLCs in the Manufacturing Process

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Transactions of Tianjin University 2020年第5期26卷 391-398页

作者： Bin yang Dianbo Ruan yang Zhang Chengyang Wang Zhijun Qiao Key Laboratory for Green Chemical Technology of MOE School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China Institute of Supercapacitor Ningbo CRRC New Energy Technology Co.LtdNingbo 315112China Faculty of Mechanical Engineering and Mechanics Ningbo UniversityNingbo 315112China

Supercapacitors,or electric double-layer capacitors(EDLCs),are the new generation of energy storage devices to store electrical charges and provide high power densities and long cyclic life compared to other storage *** mainly consists of activated carbon electrodes and an electrolyte,and the performance of EDLC depends on the activated carbon *** this work,the structural changes of activated carbon electrodes are analyzed using commercial 2.7 V/9500F EDLCs in its manufacturing *** is found that there is no significant change in morphology and crystal structure of the activated carbon,but its specific surface area(SSA)reduced *** SSA of activated carbon was decreased by 23%after they were manufactured or converted into electrodes and finally retained only 40%of SSA after the capacitance ***,the SSA of the positive electrodes was found to decrease critically than that of the negative *** SSA of the external positive electrodes is only 14.3%after fl oating test at 65℃.

关键词： Electrode EDLCs Pore structure Activated carbon Structural change

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