检索结果-南通市图书馆

Is there a difference in cognitive development between preschool singletons and twins born after intracytoplasmic sperm injection or in vitro fertilization？

引用

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2014年第1期15卷 51-57页

作者： lan-feng xing Yu-li QIAN Lu-ting CHEN Fan-hong ZHANG Xin-fen XU Fan QU Yi-min ZHU Department of Reproductive Medicine Women's Hospital School of Medicine Zhejiang University Hangzhou 310021 China

Objective： To explore whether there exist differences in cognitive development between singletons and twins born after in vitro fertilization （IVF） or intracytoplasmic sperm injection （ICSI）. Methods： A total of 566 children were recruited for the study, including 388 children （singletons, n=175; twins, n=213） born after IVF and 178 children （singletons, n=87; twins, n=91 ） born after ICSI. The cognitive development was assessed using the Chinese-Wechsler Intelligence Scale for Children （C-WISC）. Results： For all pre-term offspring, all the intelligence quotient （IQ） items between singletons and twins showed no significant differences no matter if they were born after IVF or ICSI. There was a significant difference in the cognitive development of IVF-conceived full-term singletons and twins. The twins born after IVF obtained significantly lower scores than the singletons in verbal IQ （containing information, picture ＆ vocabulary, arithmetic, picture completion, comprehension, and language）, performance IQ （containing maze, visual analysis, object assembly, and performance）, and full scale IQ （P〈0.05）. The cognitive development of full-term sin- gletons and twins born after ICSI did not show any significant differences. There was no significant difference between the parents of the singletons and twins in their characteristics where data were collected, including the age of the mothers, the current employment status, the educational backgrounds, and areas of residence. There were also no consistent differences in the duration of pregnancy, sex composition of the children, age, and height between sin- gletons and twins at the time of our study although there existed significant differences between the two groups in the sex composition of the full-term children born after ICSI （P〈0.05）. Conclusions： Compared to the full-term singletons born after IVF, the full-term twins have lower cognitive development. The cognitive development of full-term singletons and twins born

关键词： Cognitive development Intelligence quotient (IQ) In vitro fertilization (IVF) Intracytoplasmic sperminjection (ICSI) Singleton Twins

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Small extracellular vesicles derived from human induced pluripotent stem cell-differentiated neural progenitor cells mitigate retinal ganglion cell degeneration in a mouse model of optic nerve injury

引用

Neural Regeneration Research 2025年第2期20卷 587-597页

作者： Tong Li Hui-Min xing Hai-Dong Qian Qiao Gao Sheng-lan Xu Hua Ma Zai-Long Chi State Key Laboratory of Ophthalmology Optometry and Visual ScienceEye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina National Clinical Research Center for Ocular Diseases Eye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina

Several studies have found that transplantation of neural progenitor cells(NPCs)promotes the survival of injured ***,a poor integration rate and high risk of tumorigenicity after cell transplantation limits their clinical *** extracellular vesicles(sEVs)contain bioactive molecules for neuronal protection and *** studies have shown that stem/progenitor cell-derived sEVs can promote neuronal survival and recovery of neurological function in neurodegenerative eye diseases and other eye *** this study,we intravitreally transplanted sEVs derived from human induced pluripotent stem cells(hiPSCs)and hiPSCs-differentiated NPCs(hiPSC-NPC)in a mouse model of optic nerve *** results show that these intravitreally injected sEVs were ingested by retinal cells,especially those localized in the ganglion cell *** with hiPSC-NPC-derived sEVs mitigated optic nerve crush-induced retinal ganglion cell degeneration,and regulated the retinal microenvironment by inhibiting excessive activation of *** analysis further revealed that hiPSC-NPC derived sEVs transported neuroprotective and anti-inflammatory miRNA cargos to target cells,which had protective effects on RGCs after optic nerve *** findings suggest that sEVs derived from hiPSC-NPC are a promising cell-free therapeutic strategy for optic neuropathy.

关键词： exosome miRNA neural progenitor cell neurodegeneration neuroinflammation neuroprotection optic nerve crush optic neuropathy retinal ganglion cell small extracellular vesicles

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Laser image refractive index sensor based on the combination of a coreless optical fiber and a digital camera

引用

Optoelectronics Letters 2025年第2期 65-68页

作者： GUO Jingzhong lan feng CHEN Xiang LIU Haifeng Xi'an Institute of Space Radio Technology Key Laboratory of Optoelectronic Sensor and Sensing Network Technology College of Electronic Information and Optical Engineering Nankai University

As a laser passes through a scattering medium,the light interacts with the irregular reflections within the medium,resulting in light scattering and the formation of *** this paper,an image sensor based on the combination of a coreless optical fiber and a digital camera is proposed for liquid refractive index sensing *** coreless fiber is used as a sensing unit,and the change in the speckle pattern is measured using the digital correlation method to detect the magnitude of the liquid's refractive *** experimental results indicate that the laser image sensing technique is capable of effectively distinguishing liquid samples with refractive indices ranging from 1.332 8 to1.390 8,with a sensing sensitivity of-1.306 ***,the laser image sensing technique,with its advantages of high experimental reproducibility,simple system design,remote over-control,holds great research significance and potential application in laser communication and sensor integration.

关键词：

来源：

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Auricular acupressure reduces anxiety levels and improves outcomes of in vitro fertilization:a prospective,randomized and controlled study.

Auricular acupressure reduces anxiety levels and improves ou...

引用

中国中西医结合学会生殖医学分会首届学术年会暨生殖医学专业委员会成立大会

作者： Fan Qu Dan Zhang Lu-Ting Chen Fang-Fang Wang Jie-Xue Pan Yi-Min Zhu Chun-Mei Ma Yi-Ting Huang Xiao-Qun Ye Sai-Jun Sun Wen-Jun Zheng Run-Ju Zhang lan feng xing He-feng Huang Department of Chinese Medicine Women's HospitalSchool of MedicineZhejiang University Department of Reproductive Endocrinology Women's HospitalSchool of MedicineZhejiang University

Purpose:Auricular acupressure was previously reported to relieve anxiety in the preoperative setting and improve functions of the endocrine system,which may have promises to improve the outcomes of in vitro *** study was to explore whether auricular acupressure can relieve anxiety during the period from trans-vaginal oocyte retrieval to the embryo transfer in in vitro fertilization treatment and whether auricular acupressure can improve the outcomes of in vitro ***:305 infertile patients with tubal blockage who were referred for in vitro fertilization were *** women were randomized into a control group with 102 cases,a Sham-auricular acupressure group with 102 cases and an auricular acupressure group with 101 *** anxiety levels were rated with Spielberger’s State Trait Anxiety Inventory and the Amsterdam Preoperative Anxiety and Information *** of clinical pregnancy rate,implantation rate and live birth rate were *** levels of neuropeptide Y and transforming growth factor alpha in the follicular fluids were detected with ***:After treatment,in auricular acupressure group,the levels of state anxiety,preoperative anxiety and need-for-information were significantly lower,whereas clinical pregnancy rate,implantation rate,live birth rate and neuropeptide Y levels in the follicular fluids were markedly higher than Sham-auricular acupressure group and control *** significant differences on transforming growth factor alpha levels in follicular fluids among the three *** side-effect was reported in all of the three groups during the ***:Auricular acupressure could help to reduce anxiety levels associated with in vitro fertilization and improves the outcomes of in vitro fertilization partly through increasing the levels of neuropeptide Y in the follicular *** registration:Current Controlled Trials ACTRN 12611000899943.

关键词： Auricular acupressure(AA) in vitro fertilization(IVF) anxiety clinical pregnancy rate(CPR) implantation rate(IR) live birth rate(LBR).

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Transcutaneous electrical acupoint stimulation alleviates the anxiety levels of in vitro fertilization and improves the outcomes:a prospective,randomized and controlled study

Transcutaneous electrical acupoint stimulation alleviates th...

引用

2016全国中西医结合妇产科研究进展学术研讨会暨2016年第一届江浙沪中西医结合妇产科高峰论坛

作者： Fan Qu lan-feng xing Yan Wu Yi-Jing He Ke-Lin He Chun-Mei Ma Yu-Ying Yan Sai-Jun Sun Fang-Fang Wang Yu-Hang Zhu Nicola Robinson Paul J.Hardiman Women's Hospital School of MedicineZhejiang University Zhejiang Chinese Medical University Faculty of Health and Social Care London South Bank University Institute for Women's Health University College London Medical School

Objective:To explore whether transcutaneous electrical acupoint stimulation(TEAS)can relieve the anxiety levels of infertile women during the period from trans-vaginal oocyte retrieval(TVOR) to embryo transfer(ET) in in vitro fertilization(IVF) treatment and to investigate the effects of TEAS on the outcomes of ***:A prospective,randomized and controlled study was conducted in the Reproductive Medicine Center of Zhejiang Province,China.A total of 168 infertile women with tubal blockage who were referred to our center for IVF were *** women were randomized into a control group with 48 cases,a TEAS-2 Hz group with 24 cases,a TEAS-lOOHz group with 47 cases and a TEAS-2/100 Hz group with 49 cases,using a randomization chart constructed by randomizing numbers with Microsoft *** anxiety levels were rated with Spielberger’s State Trait Anxiety Inventory(STAI) and the Amsterdam Preoperative Anxiety and Information Scale(APAIS).Data of clinical pregnancy rate(CPR)implantation rate(IR) and live birth rate(LBR) were obtained for all the recruited ***:There were no significant differences on the levels of state anxiety,preoperative anxiety(including anesthesia related anxiety and surgery related anxiety) and need-for-information among all of the four groups before *** found that 2/100 Hz TEAS treatment significantly decreased the levels of state anxiety and preoperative anxiety(including anesthesia related anxiety and surgery related anxiety) of the patients(P<0.05).The CPR,*** LBR of the TEAS-2/100 Hz group were significantly higher than those of the other three groups respectively(P<0.05).No side-effect was reported in any of the groups during the research and the follow-up ***:TEAS using a frequency of 2/100 Hz could help to alleviate the anxiety levels associated with IVF and to improve the IVF outcomes.

关键词： [Key terms]Transcutaneous electrical acupoint stimulation(TEAS) in vitro fertilization(IVF) anxiety clinical pregnancy rate(CPR) implantation rate(IR) live birth rate(LBR)

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Recent Advances in Fibrous Materials for Hydroelectricity Generation

引用

Nano-Micro Letters 2025年第2期17卷 109-133页

作者： Can Ge Duo Xu Xiao feng xing Yang Zheheng Song Yuhang Song Jingyu Chen Yingcun Liu Chong Gao Yong Du Zhe Sun Weilin Xu Jian Fang College of Textile and Clothing Engineering Soochow UniversitySuzhou 215123People’s Republic of China National Engineering Laboratory for Modern Silk Soochow UniversitySuzhou 215123People’s Republic of China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200People’s Republic of China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123People’s Republic of China Department of Electrical and Computer Engineering University of MassachusettsAmherstMA 01003USA Department of Materials Imperial College LondonSouth Kensington CampusLondon SW72AZUK College of Textile Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China School of Materials Science and Engineering Shanghai Institute of Technology100 Haiquan RoadShanghai 201418People’s Republic of China

Depleting fossil energy sources and conventional polluting power generation pose a threat to sustainable *** generation from ubiquitous and spontaneous phase transitions between liquid and gaseous water has been considered a promising strategy for mitigating the energy *** materials with unique flexibility,processability,multifunctionality,and practicability have been widely applied for fibrous materials-based hydroelectricity generation(FHG).In this review,the power generation mechanisms,design principles,and electricity enhancement factors of FHG are first ***,the fabrication strategies and characteristics of varied constructions including 1D fiber,1D yarn,2D fabric,2D membrane,3D fibrous framework,and 3D fibrous gel are ***,the advanced functions of FHG during water harvesting,proton dissociation,ion separation,and charge accumulation processes are analyzed in ***,the potential applications including power supply,energy storage,electrical sensor,and information expression are also ***,some existing challenges are considered and prospects for future development are sincerely proposed.

关键词： Hydroelectricity Fibrous material Streaming potential Ion diffusion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Cable coupling response in metal cavity under X-ray irradiation

引用

Nuclear Science and Techniques 2024年第10期35卷 110-120页

作者： Mao-xing Zhang lan-feng Yuan Cui Meng Yi-Nong Liu Department of Engineering Physics Tsinghua UniversityBeijing 100084China College of Electrical Engineering Zhejiang UniversityHangzhou 310007China Laboratory of Particle and Radiation Imaging Ministry of EducationBeijing 100084China

This study investigates the coupling response of cables inside a metal cavity under X-ray irradiation using the finite-difference time-domain method,particle simulation method,and transmission-line equation to solve the electromagnetic field inside the cavity and load voltage at the cable terminal under X-ray *** results show that under a strong ionizing radiation environment of 1 J/cm^(2),a strong electromagnetic environment is generated inside the *** cable shielding layer terminal couples a voltage of 15.32 V,whereas the core wire terminal couples a voltage of 0.31 *** strong X-ray irradiation,the metal cavity not only fails to provide electromagnetic shielding,but also introduces new electromagnetic *** study also provides a method for reducing the number of emitted electrons by adding low-Z materials,which can effectively reduce the coupled electric field and voltage.

关键词： Ionizing radiation Metal cavity System-generated electromagnetic pulse Transmission-line model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Unraveling the therapeutic potential of Calculus Bovis in liver cancer:A novel step for targeted cancer treatment

引用

World Journal of Gastroenterology 2025年第3期31卷 127-129页

作者： xing-Yu Chen Xiang lan Department of Hepatobiliary Surgery The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China

Hepatocellular carcinoma is one of the leading causes of cancer-related deaths globally,and effective treatments are urgently *** present study aimed to investigate the inhibitory effect of Calculus Bovis(CB)on liver cancer and the underlying *** inhibited M2 tumor-associated macrophage polarization and modulated the Wnt/β-catenin signaling pathway,thereby suppressing the proliferation of liver cancer *** inhibitory effect on liver cancer growth was confirmed by both in vivo and in vitro experiments(detailed by Huang et al).The present study provides a theoretical basis for the application of CB for the treatment of liver cancer,providing new avenues for liver cancer treatment.

关键词： Calculus Bovis Liver cancer M2 tumor-associated macrophage polarization Wnt/β-catenin Pathway Tumor microenvironment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Syntheses, Structures and Herbicidal Activity of Bis(5-R-2-hydroxybenzylidene) Thiocarbohydrazide Monobutyltin Complexes [R: H(T1), Me(T2)]

引用

Chinese Journal of Structural Chemistry 2019年第5期38卷 719-726,668页

作者： feng Yong-lan ZHANG Fu-xing KUANG Dai-Zhi Key Laboratory of Functional Metal-organic Compounds of Hunan Province Key Laboratory of Functional Organometallic Materials of College of Hunan Province Department of Chemistry and Material Science Hengyang Normal University

The 1,5-disubstituted thiocarbohydrazide ligands were prepared by the condensation of thiocarbohydrazide with salicylaldehyde and 5-methylsalicylaldehyde, respectively. The butyltin complexes,[(5-R-2-hydroxy)ArCH=NNH]2 CS(n-BuSnCl)2, R = H(T1);R = Me(T2), based on the1,5-disubstituted thiocarbohydrazide were obtained by microwave-assisted solvothermal reaction of n-butyltintrichloride precursor with the ligands in methanol environments, which have been structurally characterized by elemental analysis, IR and(1 H, 13 C) NMR spectra. The crystals belong to monoclinic system, space groups C2/c(T1) and Pc(T2), respectively. The Sn atom is six-coordinated with distorted octahedral geometry by O, N and S atoms from ligand, C atom of butyl and two Cl atoms. In the crystal, complex T1 forms three-dimensional supramolecular assembly mediated by noncovalent interactions such as C–H···Cl and π-stacking ***, T2 forms an interesting two-dimensional supramolecular structure by noncovalent interactions(e.g. C–H×××Cl and N–H×××Cl) of one-dimensional band-like chain. These ligands and its butyltin complexes have growth effect on the target plants, such as Portulaca oleracea L.,Amaranthus spinosus L., Cassia tora L., Brassica campestris L. ssp. chinensis var. utilis Tsen et Lee and Amaranthus tricolor L. The ligand L1 has a good inhibitory effect on the growth of Cassia tora L., and complex T2 has selective inhibition on the growth of Portulaca oleracea L. and Amaranthus tricolor L., which can be used as a candidate compound for Cassia tora L., Portulaca oleracea *** Amaranthus tricolor L. herbicide.

关键词： bis(2-hydroxybenzylidene)thiocarbohydrazide butyltin microwave solvothermal synthesis crystal structure herbicidal activity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

气液色谱法分析发酵豆奶中的低碳有机酸

引用

上海水产大学学报 1997年第3期6卷 193-199页

作者：丁卓平陈有容齐凤兰孙兴民上海水产大学 200090

有机酸来自有益菌的代谢产物。通过测定有机酸的组成来了解菌种类型，从而确认产品的保健价值，因此对有机酸测定很有必要。由于发酵豆奶中蛋白质含量较高，为此用硅藻土沉淀发酵豆奶中的蛋白质。此外，因短链脂肪酸及其酯化物的挥发性... 详细信息

有机酸来自有益菌的代谢产物。通过测定有机酸的组成来了解菌种类型，从而确认产品的保健价值，因此对有机酸测定很有必要。由于发酵豆奶中蛋白质含量较高，为此用硅藻土沉淀发酵豆奶中的蛋白质。此外，因短链脂肪酸及其酯化物的挥发性和水溶性强，分析较为困难。本文采用苄酯化法则测定结果的精密度很高，回收率也较满意。在对四种不同菌种发酵豆奶测定的同时，还对市场上常见的生态口服液和酸奶作了测定。结果表明本测定方法也是适用的。

关键词：发酵豆奶气液色谱法有机酸苄酯化

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：