检索结果-南通市图书馆

Influence of reproductive tract obstruction on expression ）f epididymal proteins and their restoration after patency

引用

Asian Journal of Andrology 2013年第1期15卷 105-109页

作者： Bing-Kun li Xiang Wang Chun-Xiao liu Shao-Bo Zheng Hu-lin li li-ping li A-Bai Xu Department of Urology Zhujiang Hospital Southern Medical University Guangzhou 510282 China ZDepartment of Urology Huashan Hospital Fudan

Vasectomy is a simple and reliable method of male contraception. A growing number of men after vasectomy request vasectomy reversal due to various reasons. The pregnancy rate is lower than the patency rate after vasovasostomy and the pregnancy rate is time dependent. In this study, we evaluated the influence of reproductive tract obstruction on expression of epididymal proteins and their restoration after patency. Adult male Wistar rats were studied 30, 60 and 120 days after vasectomy, 30 days after vasovasostomy or after sham operations. Two-dimensional gel electrophoresis, mass-spectrometric technique, multidatabase search, Western blotting and real-time PCR were used to analyze the expression regulation of epididymal proteins. Total integrated intensity and total spot area of autoradiograms showed a consistent downward trend with time after obstruction, and this trend remained after patency. The intensity of the autoradiographic spots in three patency groups showed three trends： a downward trend, similar intensity and an upward trend compared with the correspondent obstruction group, respectively. Further verified experiments on human epididymis 2 （HE2）, fertilization antigen-1 （FA-1）, clusterin and PH20 demonstrated that compared with the correspondent obstruction group, the translation levels of HE2 and the mRNA transcription levels of HE2 showed an upward trend in patency groups, especially in the groups of obstruction for 60 days where the expression levels of HE2 were significantly upregulated after patency （P〈O.05）. Reproductive tract obstruction provokes a disregulation of gene expression in the epididymis and this disregulation remained after patency. Successful reversal may recover some proteins and the recovery is time dependent, Obstruction differentially alters mRNA transcription of different proteins and the content of proteins seemed to be easier to be influenced than the gene transcription.

关键词： epididymal secretory proteins vasectomy vasovasostomy

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

Electrical and magnetic properties of ZnNiO thin films deposited by pulse laser deposition

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第7期12卷 561-566页

作者： Jie JIANG Xue-tao WANG li-ping ZHU li-qiang ZHANG Zhi-guo YANG Zhi-zhen YE State Key Laboratory of Silicon Materials Department of Materials Science and Engineering Zhejiang University Hangzhou 310027 China

ZnNiO thin films with different contents of Ni(0-10 at.%) were fabricated on quartz and Si(100) substrates by pulsed laser deposition(PLD).We measured the samples by X-ray diffraction(XRD),field-emission scanning electron microscope(FE-SEM),X-ray photoelectron spectroscopy(XPS),ultraviolet-visible spectrometer(UV-VIS),and Hall *** the Ni contents were below 3 at.%,partial Zn2+ ions were replaced by the Ni2+ ions without forming any other phases,which enhanced the conductivity of the *** the Ni contents were above 3 at.%,Ni ions were at the interstitial sites,and Ni-related clusters and defects were able to emerge in the films,resulting in a worsening of electrical and optical properties.A ferromagnetic hysteresis with a coercive force of approximately 30 Oe was observed in the ZnNiO film with a Ni content of 3 at.% at room temperature.

关键词： ZnNiO thin films Electric property Ferromagnetic Transmittance Pulsed laser deposition(PLD)

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

Investigation of the cross-reaction mechanism of C_6H_5F-HNO_2 aqueous solution irradiated at 355 nm by transient absorbance spectrum technique

引用

Chinese Science Bulletin 2008年第7期53卷 998-1003页

作者： ZHANG RenXi SHEN Yan li ping HUANG li DONG WenBo HOU HuiQi Institute of Environmental Science Fudan University Shanghai 200433 China

The transient absorption spectrum technique was employed to investigate the cross-reaction mecha-nism of C6H5F-HNO2 aqueous solution irradiated at 355 nm. The characteristic and the kinetic parame-ters of transient species were also detected. Hydroxyl radical derived from the photolysis of HNO2 was added to monofluorobenzene with a second-order rate constant of (5.83±0.17)×109 L·mol-1·s-1 to form an adduct, C6H5F···OH, which was able to react with HNO2 as the main reaction pathway with a rate constant of (8.3±0.1)×107 L·mol-1·s-1. The C6F6···OH adduct can also be decayed by elimination of H2O to yield monofluorophenyl radical C6H4F·. By GC-MS technique, the final products were identified to be monofluorophenol, nitro-monofluorobenzene, nitro-monofluorophenol and para-fluorobiphenyl.

关键词：溶液作用瞬变现象吸收率光谱学

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

Relationship between intracranial pressure and neurocognitive function among older adults after radical resection of rectal cancer

引用

World Journal of Gastrointestinal Surgery 2024年第10期16卷 3261-3268页

作者： Bo Song li-ping li Xiao-lin Wang Yong Guo Jun li Mianyang Key Laboratory of Anesthesia and Neuroregulation Department of AnesthesiologyMianyang Central HospitalMianyang 621000Sichuan ProvinceChina Department of Anesthesiology Southwest Medical UniversityLuzhou 646000Sichuan ProvinceChina Department of Anesthesiology The People’s Hospital of Yanting CityMianyang 621000Sichuan ProvinceChina

BACKGROUND Older patients are prone to postoperative cognitive decline after laparoscopic rectal cancer surgery,which may be associated with increased intraoperative intracranial pressure(ICP).This study investigated the correlation between intra-operative ICP changes,as indicated by measurements of the optic nerve sheath diameter(ONSD)using ultrasonography,and subsequent cognitive function to provide better patient *** To evaluate changes in ICP and associated postoperative neurocognition in older adults after laparoscopic radical resection for rectal *** We included 140 patients who visited the Mianyang Central Hospital for malig-nant rectal tumors,measured their ONSDs before surgery and 30 and 60 minutes after the Trendelenburg position during surgery,and evaluated the patients’cog-nitive function 1 day before surgery and 1,4,and 7 days after *** Mini-Mental State Examination(MMSE)and confusion assessment method(CAM)scores of the patients with different ONSDs were compared at different times after *** In patients with an ONSD greater than 5.00 mm(group A1),the MMSE scores at 1 day and 4 days after surgery were significantly lower than those of patients with an ONSD less than or equal to 4.00 mm(group A2)(Pline in cognitive function among older adults after the procedure may be related to intracranial hypertension during surgery.

关键词： Ultrasound Optic nerve sheath diameter Intracranial pressure Cognitive function Radical resection Rectal cancer

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

Analysis of Essential Oils from Flower-buds, Leaves and Stems of Filipendula palmata(Pall.) Maxim.

引用

Chemical Research in Chinese Universities 2005年第6期21卷 658-662页

作者： WU Yin MENG Xiang-ying liU Xiao-hua BAO Yong-li WANG Shu-ping li Yu-xin Institute of Genetics and Cytology Northeast Normal University Changchun 130024 P. R. China

The essential oils of the flower-buds, leaves and stems of Filipendula palmata（ Pall. ） Maxim. were analyzed by GC and GC-MS. Thirty-three, forty-seven and forty-seven compounds in the flower-buds, leaves and stems were identified, respectively. Methyl salicylate exists in a great amount which is up to 70. 10% in the flower-buds. Its amount is also high in other two parts. The data obtained show that it may be one of the main natural mosquito-expelling and pain-alleviating components in the three parts. The flower-buds are the main active part with the mosquito-expelling function.

关键词： Filipendula palmata( Pall. ) Maxim. Essential oil GC-MS

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

Clinical nursing value of predictive nursing in reducing complications of pregnant women undergoing short-term massive blood transfusion during cesarean section

引用

World Journal of Clinical Cases 2024年第1期12卷 51-58页

作者： li Cheng li-ping li Yuan-Yuan Zhang Fang Deng Ting-Ting Lan Department of Obstertrics Wuhan Third HospitalWuhan 430000Hubei ProvinceChina Department of Gynaecology Wuhan No.1 HospitalWuHan 430030Hubei ProvinceChina Center for Reproductive Medicine Department of Obstetrics and GynecologySichuan Provincial People's HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengdu 610072Sichuan ProvinceChina

BACKGROUND Cesarean hemorrhage is one of the serious complications,and short-term massive blood transfusion can easily cause postoperative infection and physical stress ***,predictive nursing intervention has important clinical significance for *** To explore the effect of predictive nursing intervention on the stress response and complications of women undergoing short-term mass blood transfusion during cesarean section(CS).METHODS A clinical medical record of 100 pregnant women undergoing rapid mass blood transfusion during sections from June 2019 to June *** to the different nursing methods,patients divided into control group(n=50)and observation group(n=50).Among them,the control group implemented routine nursing,and the observation group implemented predictive nursing intervention based on the control ***,compared the differences in stress res-ponse,complications,and pain scores before and after the nursing of pregnant women undergoing rapid mass blood transfusion during *** The anxiety and depression scores of pregnant women in the two groups were significantly improved after nursing,and the psychological stress response of the observation group was significantly lower than that of the control group(Plivery were lower than those of the control group,and the MAP at the end of delivery was lower than that of the control group(Plications such as skin rash,urinary retention,chills,diarrhea,and anaphylactic shock in the observation group were 18%,which significantly higher than in the control group(4%)(Plieve the pain,reduce the incidence of complications,improve mood and stress response,and serve as a

关键词： Predictive care Rapid mass blood transfusion Cesarean section Stress response Complications

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

Enhancement of Localization in a Driven Four-Well System with Second-Order Coupling

引用

Chinese Physics Letters 2013年第11期30卷 29-32页

作者： li li-ping LUO Xiao-Bing HU Qiang-lin YU Xiao-Guang Information Engineer School Huanghe Science and Technology CollegeZhengzhou 450006 Department of Physics Jinggangshan UniversityJi'an 343009 Department of Physics Tsinghua UniversityBeijing 100084

We study theoretically the effect of second-order coupling(SOC)on the tunneling dynamics in a planar four-well system with only one well periodically *** find that SOC between next-nearest neighboring wells facilitates *** to SOC,the suppression of tunneling occurs over a finite range of parameters,in stark contrast to the normal coherent destruction of tunneling in the nearest-neighbor tight-binding *** counter-intuitive phenomenon of SOC-enhanced localization can be attributed to the existence of a localized Floquet state rather than the degeneracy of quasi-energy levels in such a system.

关键词： tunneling nearest attributed

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

Construction of a Muscle cDNA library of Chinese Shrimp Fenneropenaeus chinensis and Sequence Analysis of the Troponin I Gene

引用

Journal of Ocean University of China 2010年第1期9卷 81-86页

作者： li Jitao CHEN ping li Jian liU ping HE Yuying WANG Qingyin Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao 266071 P. R. China

A muscle cDNA library of Chinese shrimp (Fenneropenaeus chinensis) was constructed with the SMARTTM cDNA library Construction *** titer of optimal primary library was 7.7×105 pfu mL-1 and that of the amplified library was 3.0×109 pfu *** percentages of the recombinant clones of primary and amplified libraries were over 98%.The insert sizes were longer than 400 bp with an average of 1000 bp.A positive clone containing a 794 bp insert was sequenced and identified encoding fast skeletal troponin I *** library provided a useful resource for the functional genomic research of ***.

关键词： Fenneropenaeus chinensis cDNA library troponin I

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

A comparative analysis of child passenger restraint use in China and the United States

引用

World Journal of Pediatrics 2017年第6期13卷 593-598页

作者： Jing-Zhen Yang li-ping li Hong-Qian Wu Daniel McGehee Corinne Peek-Asa The Research Institute at Nationwide Children's Hospital Center for Injury Research and PolicyUnited States Department of Pediatrics College of Medicinethe Ohio State UniversityUnited States Injury Prevention Research Center Shantou University Medical CollegeChina Department of Biostatistics University of IowaUnited States Injury Prevention Research Center Human Factors and Vehicle Safety Research Division University of Iowa Public Policy CenterUnited States

Background:Few published studies have examined child passenger safety practices across *** study compared the prevalence and associated factors of child passenger restraint use among children,aged 0 to 17 in the state of Iowa in the United States,and the city of Shantou in ***:Child restraint use observations were conducted in Iowa and in Shantou in 2012,respectively,among child *** in Iowa were conducted at randomly selected gas stations,while in Shantou observations were completed at randomly selected schools or medical *** observers approached the driver,observed restraint use,and collected brief survey ***:A total of 3049 children from Iowa and 3333 children aged 0 to 17 years from Shantou were *** children aged 0 to 3 years,only 0.1% were compliantly restrained in Shantou as compared to 95.9% in *** proportion of children who were compliantly restrained in Shantou increased with age,but generally decreased with age in *** Shantou,36.0% of children aged 0 to 3 were sitting in the front seat as compared to only 1.7% of children of the same age in *** seat belt use was significantly associated with child restraint in both Iowa and Shantou;the association was stronger in Iowa than Shantou for aH age ***:A significantly higher prevalence of children who were not appropriately restrained was observed in Shantou than in *** findings support the need of mandatory child safety restraint use legislation in China.

关键词： child passenger safety restraint cross country motor vehicle occupant

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

塑料眼镜内外缺陷检测的全内反射照明技术(英文)

引用

光学精密工程 2011年第9期19卷 2247-2254页

作者： ZHAO li-ping li Xiang FANG Zhong-ping Precision Measurements Group Singapore Institute of Technological University 71 Nanyang Drive Singapore 638075

考虑目前大多数塑料眼镜镜片和光学表面的缺陷检测仍由人工完成,研究了基于全内反射照明的暗场检测技术,以提高用机器视觉进行自动缺陷检测的可见度及对比度,设计了镜头检测原型系统用于增强缺陷信号的强度并降低表面浮尘的干扰。利用... 详细信息

考虑目前大多数塑料眼镜镜片和光学表面的缺陷检测仍由人工完成,研究了基于全内反射照明的暗场检测技术,以提高用机器视觉进行自动缺陷检测的可见度及对比度,设计了镜头检测原型系统用于增强缺陷信号的强度并降低表面浮尘的干扰。利用设计的原型系统进行了试验测试并对自动缺陷检测结果与人工检测结果进行比较,结果验证了这种暗场全内反射检测技术的可行性。

关键词：塑料眼镜镜片缺陷检测机器视觉全内反射

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：