检索结果-南通市图书馆

Yield and water use responses of winter wheat to irrigation and nitrogen application in the North China Plain

Journal of Integrative Agriculture 2018年第5期17卷 1194-1206页

作者： ZHANG Ming-ming DONG Bao-di qiao yun-zhou SHI Chang-hai YANG Hong WANG Ya-kai LIU Meng-yu Key Laboratory of Agricultural Water Resources Hebei Laboratory of Agricultural Water-Saving Center for Agricultural Resources Research Institute of Genetics and Developmental Biology Chinese Academy of Sciences Shijiazhuang 050021 P.R. China University of Chinese Academy of Sciences Beijing 100049 P.R. China Qingdao Agricultural University Qingdao 266109 P.R.China

With increasing water shortage resources and extravagant nitrogen application, there is an urgent need to optimize irrigation regimes and nitrogen management for winter wheat（Triticum aestivum L.） in the North China Plain（NCP）. A 4-year field experiment was conducted to evaluate the effect of three irrigation levels（W1, irrigation once at jointing stage; W2, irrigation once at jointing and once at heading stage; W3, irrigation once at jointing, once at heading, and once at filling stage; 60 mm each irrigation） and four N fertilizer rates（N0, 0; N1, 100 kg N ha-（-1）; N2, 200 kg N ha-（-1）; N3, 300 kg N ha-（-1）） on wheat yield, water use efficiency, fertilizer agronomic efficiency, and economic benefits. The results showed that wheat yield under W2 condition was similar to that under W3, and greater than that under W1 at the same nitrogen level. Yield with the N1 treatment was higher than that with the N0 treatment, but not significantly different from that obtained with the N2 and N3 treatments. The W2 N1 treatment resulted in the highest water use and fertilizer agronomic efficiencies. Compared with local traditional practice（W3 N3）, the net income and output-input ratio of W2 N1 were greater by 12.3 and 19.5%, respectively. These findings suggest that two irrigation events of 60 mm each coupled with application of 100 kg N ha-（–1） is sufficient to provide a high wheat yield during drought growing seasons in the NCP.

关键词： winter wheat irrigation regime nitrogen application grain yield water use efficiency

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

Upregulation of miR-345-5p suppresses cell growth of lung adenocarcinoma by regulating ras homolog family member A(RhoA)and Rho/Rho associated protein kinase(Rho/ROCK)pathway

引用

Chinese Medical Journal 2021年第21期134卷 2619-2628页

作者： qiao-yun zhou Shu-Yu Gui Peng Zhang Mei Wang Department of Respiratory and Critical Care Medicine The First Affiliated Hospital of Anhui Medical UniversityHefeiAnhui 230011China Department of Respiratory Medicine Anhui No.2 Provincial People’s HospitalClinical College of Anhui Medical UniversityHefeiAnhui 230032China Department of Hyperbaric Oxygen Hefei Hospital Affiliated to Anhui Medical UniversityHefeiAnhui 230032China

Background:Microribose nucleic acids(miRNAs)are implicated in the progression of lung ***-345-5p(miR-345-5p)is a recently identified anti-oncogene in some human cancers,but its functional role and possible molecular mechanism in lung adenocarcinoma remain *** study aimed to identify the biological function and underlying mechanism of miR-345-5p in lung adenocarcinoma ***:In this study,lung adenocarcinoma tissues and adjacent tissues were collected in the First Affiliated Hospital of Anhui Medical University between April 2016 and February *** expression of miR-345-5p and ras homolog family member A(RhoA)in lung adenocarcinoma tissues and human lung adenocarcinoma cell lines(A549,H1650,PC-9,and H441)was detected by reverse transcription quantitative polymerase chain reaction *** assays including colony formation,flow cytometry analysis,wound healing,and transwell assays were performed to assess the proliferation,apoptosis,migration,and invasion of lung adenocarcinoma *** addition,RNA pulldown and luciferase reporter assays were conducted to evaluate the relationship between miR-345-5p and *** between the two groups was analyzed with Student’st test,while that among multiple groups was analyzed with one-way analysis of ***:MiR-345-5p expression displayed lower level in lung adenocarcinoma tissues(0.241±0.095vs.1.000±0.233,t=19.247,P<0.001)and cell lines(F=56.992,P<0.001)than control tissues and *** experiments demonstrated that upregulation of miR-345-5p inhibited the malignant phenotypes of lung adenocarcinoma cells via suppressing cell proliferation,migration,invasion,and facilitating cell ***,RhoA was verified to be the downstream target of *** of RhoA was downregulated by overexpression of miR-345-5p in PC-9(0.321±0.047vs.1.000±0.127,t=8.536,P<0.001)and H1650(0.398±0.054vs.1.000±0.156,t=4.429,P=0.011)*** assays reveal

关键词： MicroRNA-345-5p Lung adenocarcinoma Ras homolog family member A(RhoA) Rho/Rho-associated protein kinase(ROCK)

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

Reproductive Outcome of Transcervical Uterine Incision in Unicornuate Uterus

引用

Chinese Medical Journal 2017年第3期130卷 256-261页

作者： En-Lan Xia Tin-Chiu Li Sze-Ngar Sylvia Choi qiao-yun zhou Hysteroscopic Center Fu Xing Hospital Capital Medical University Beijing 100038 China Department of Obstetrics and Gynaecology Prince of Wales Hospital Hong Kong 999077 China Department of Obstetrics and Gynaecology United Christian Hospital Hong Kong 999077 China

Background： The pregnancy outcome of the unicornuate uterus is associated with an increased risk of miscarriage, cervical incompetence, and a number of obstetric complications. However, at present, there is no accepted treatment method for women with unicornuate uterus, other than expectant measures. The aim of this study was to evaluate the reproductive outcome of transcervical uterine incision （TCUI） in patients with unicornuate uterus. Methods： Thirty-three patients with unicoruuate uterus presented to our tertiary center tbr infertility or miscarriage. All 33 patients underwent TCUI and were followed up for 10-52 months. The pregnancy outcomes （first-trimester miscarriage, second-trimester miscarriage, preterm, term, intrauterine death, ongoing pregnancy, and live birth） before and after TCUI were compared by t-test. Results： Among 31 patients who attempted to conceive alter TCUI, twenty conceived including one terufination of pregnancy, one second-trimester miscarriage, one ectopic pregnancy, five preterm deliveries, 11 term delivery, and one ongoing pregnancy. There were 16 live births in total. There was significant reduction in the first-trimester miscarriage rate （t = 4.890; P 〈 0.001 ）, increase in term delivery （t = -3.288; P =0.002）, and live birth rates （t = -4.073; P 〈 0.001 ） after TCUI. Conclusion： TCUI appeared to improve the pregnancy outcome in women with unicoruuate uterus presenting with infertility or miscarriage.

关键词： Hysteroscopy Pregnancy Outcome Surgery Transcervical Incision of Uterus Unicornuate Uterus Uterine Anomalies

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

Laparoscopic metroplasty for bicorporeal uterus: surgical techniques and outcomes

引用

Chinese Medical Journal 2021年第9期134卷 1107-1109页

作者： qiao-yun zhou Sotirios Saravelos Xiao-Wu Huang Ning Ma Tinchiu Li En-Lan Xia Department of Hysteroscopic Center Fuxing HospitalCapital Medical UniversityBeijing 100038China IVF Unit Department of Obstetrics&GynaecologyHammersmith HospitalImperial College LondonUK Assisted Reproduction Unit Department of Obstetrics&GynaecologyPrince of Wales HospitalThe Chinese University of Hong KongHong KongChina

The incidence of congenital uterine anomalies(CUA)appears to be higher than previously thought owing to improved diagnostic imaging modalities.[1]A recent systematic review has estimated the prevalence to be 5.5%in the unselected population,8.0%in infertile women,and 13.3%in those with a history of *** commonest anomaly across all populations appear to be the septate variety(ie,canalization defects)followed by the bicornuate variety(ie,fusion defects).[2]Another meta-analysis has shown that several adverse reproductive outcomes associated with CUA,such as increased miscarriage rates,increased preterm delivery rates,and increased perinatal mortality rates.[3]

关键词： mortality outcome congenital

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

Co/Co_(7)Fe_(3)heterostructures with controllable alloying degree on carbon spheres as bifunctional electrocatalyst forrechargeable zinc-air batteries

引用

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 476-487页

作者： Junkang Chen Yongyue Zhuang Yanxin qiao Yu Zhang Aihua Yuan Hu zhou School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

Exploring efficient and nonprecious metal electrocatalysts of oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is crucial for developing rechargeable zinc-air batteries(ZABs).Herein,an alloying-degree control strategy was employed to fabricate nitrogen-doped carbon sphere(NCS)decorated with dual-phase Co/Co_(7)Fe_(3)heterojunctions(CoFe@NCS).The phase composition of materials has been adjusted by controlling the alloying *** optimal CoFe_(0.08)@NCS electrocatalyst displays a half-wave potential of 0.80 V for ORR and an overpotential of 283 mV at 10 mA·cm^(-2)for OER in an alkaline *** intriguing bifunctional electrocatalytic activity and durability is attributed to the hierarchically porous structure and interfacial electron coupling of highly-active Co_(7)Fe_(3)alloy and metallic Co *** the CoFe_(0.08)@NCS material is used as air-cathode catalyst of rechargeable liquid-state zinc-air battery(ZAB),the device shows a high peak power-density(157 mW·cm^(-2))and maintains a stable voltage gap over 150 h,outperforming those of the benchmark(Pt/C+RuO_(2))-based *** particular,the as-fabricated solid-state flexible ZAB delivers a reliable compatibility under different bending *** work provides a promising strategy to develop metal/alloy-based electrocatalysts for the application in renewable energy conversion technologies.

关键词： bifunctional electrocatalysts oxygen reduction reaction oxygen evolution reaction zinc-air battery metal/alloy carbon sphere

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

The cGAS-STING-interferon regulatory factor 7 pathway regulates neuroinflammation in Parkinson's disease

引用

Neural Regeneration Research 2025年第8期20卷 2361-2372页

作者： Shengyang zhou Ting Li Wei Zhang Jian Wu Hui Hong Wei Quan Xinyu qiao Chun Cui Chenmeng qiao Weijiang Zhao Yanqin Shen Laboratory of Neurodegenerative and Neuroinjury Diseases Wuxi Medicine SchoolJiangnan UniversityWuxiJiangsu ProvinceChina

Interferon regulatory factor 7 plays a crucial role in the innate immune ***,whether interferon regulatory factor 7-mediated signaling contributes to Parkinson's disease remains *** we report that interferon regulatory factor 7 is markedly up-regulated in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced mouse model of Parkinson's disease and co-localizes with microglial *** the selective cyclic guanosine monophosphate adenosine monophosphate synthase inhibitor RU.521 and the stimulator of interferon genes inhibitor H151 effectively suppressed interferon regulatory factor 7 activation in BV2 microglia exposed to 1-methyl-4-phenylpyridinium and inhibited transformation of mouse BV2 microglia into the neurotoxic M1 *** addition,si RNA-mediated knockdown of interferon regulatory factor 7 expression in BV2 microglia reduced the expression of inducible nitric oxide synthase,tumor necrosis factorα,CD16,CD32,and CD86 and increased the expression of the anti-inflammatory markers ARG1 and *** together,our findings indicate that the cyclic guanosine monophosphate adenosine monophosphate synthase-stimulator of interferon genes-interferon regulatory factor 7 pathway plays a crucial role in the pathogenesis of Parkinson's disease.

关键词： cyclic guanosine monophosphate adenosine monophosphate synthase H151 interferon regulatory factor 7 M1 phenotype neurodegenerative disease neuroinflammation Parkinson’s disease RU521 STING type I interferon

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

2-苯亚胺官能化吲哚基铕胺基配合物与芳基取代甲脒的反应性（英文）

引用

无机化学学报 2017年第1期33卷 169-174页

作者：冯志君崔巧玉韦芸周双六吴运军王少印皖南医学院医用基础化学教研室芜湖241002 功能分子固体教育部重点实验室安徽师范大学化学与材料科学学院分子材料实验室芜湖241000

2-(苯亚胺基次甲基)吲哚铕胺基配合物[η1∶η1-2-(C6H5NH=CH)C8H5N]2Eu[N(Si Me3)2](1)与二芳基取代甲脒(2,6-R2C6H3N=CHNH(C6H3R2-2,6)(R=iPr(2),Me(3))经过配体交换反应,分别得到了含吲哚基脒基铕配合物[η1∶η1-2-(C6H5NH=CH)C8H5N]Eu[(η3-2,6-iPr2C6H3)N=CHN(C6H3iPr2-2,6)][N(Si Me3)2](4)和含脒基的稀土铕配合物[(η3-2,6-Me2C6H3)N=CHN(C6H3Me2-2,6)]2Eu[N(Si Me3)2](5)。结果表明,脒基的位阻显著影响了吲哚基稀土金属胺基配合物与二芳基取代甲脒的配体交换反应。配合物4和5通过IR、元素分析和X射线单晶衍射分析进行了表征。

关键词：稀土金属铕吲哚基配体胺基配合物

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

昼夜不对称性与对称性升温对大豆产量和水分利用的影响

引用

植物生态学报 2016年第8期40卷 827-833页

作者：王丹乔匀周董宝娣葛静杨萍果刘孟雨山西师范大学生命科学学院山西临汾041000 中国科学院遗传与发育生物学研究所农业资源研究中心石家庄050021

全球气候变暖并不是白天和夜间的平均变暖,而是呈现一定的不对称性。大豆(Glycine max)是世界范围内种植较广泛的豆科作物,也是中国重要的粮食作物。研究大豆的生长与水分利用对不对称性气候变暖的响应,可为预测未来气候变暖情景下大豆... 详细信息

全球气候变暖并不是白天和夜间的平均变暖,而是呈现一定的不对称性。大豆(Glycine max)是世界范围内种植较广泛的豆科作物,也是中国重要的粮食作物。研究大豆的生长与水分利用对不对称性气候变暖的响应,可为预测未来气候变暖情景下大豆的适应提供科学的参考依据。该实验在人工气候箱中采用盆栽方式进行,设立对照(CON,昼26℃夜16℃)、对称性升温(ETs,昼夜均升高3℃)和不对称性升温(ETa,昼升高2℃,夜升高4℃)三个温度情景,研究了大豆产量和水分利用对昼夜不对称性与对称性升温的差异性响应。结果表明:在昼/夜26℃/16℃的背景下,1)ETs对大豆产量影响不显著,主要是因为生物量的增加缓解了收获指数下降对大豆的不利影响;ETa使大豆产量减少38.9%,是由于大豆的收获指数和产量构成要素(荚数、粒数、百粒重)均显著降低。2)ETs对大豆全生育期蒸散量(ET)的影响不显著,ETa使大豆整个生育期ET减少14.8%。3)两种升温模式对大豆耗水量中蒸发量的影响都不显著,耗水量的差异主要来自蒸腾量的差异,其中ETs和ETa分别使大豆全生育期蒸腾量降低10.7%和26.1%。综上所述,只针对ETs进行研究,而没有对ETa进行研究的实验会低估真正的气候变暖情景(ETa)对大豆生长和产量的不利影响,高估其对大豆耗水量的影响。

关键词：昼夜不对称性气候变暖产量耗水量水分利用效率蒸腾效率大豆

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

亏缺灌溉及叶面喷锌对番茄产量品质及水分利用效率的影响

引用

干旱地区农业研究 2009年第3期27卷 60-65页

作者：姜凤超刘孟雨乔匀周石磊董宝娣中国科学院遗传与发育生物学研究所农业资源研究中心河北石家庄050021 中国科学院研究生院北京100049

通过盆栽试验,研究了3个土壤水分水平（W1：田间持水量的60%-65%、W2：75%-80%、W3：90%-95%）、两个锌溶液水平（Z0：0%、Z1：0.2%）对番茄生长、果实产量及品质、耗水、水分利用效率的影响。结果表明,随土壤水分的增加,番茄株高、植... 详细信息

通过盆栽试验,研究了3个土壤水分水平（W1：田间持水量的60%-65%、W2：75%-80%、W3：90%-95%）、两个锌溶液水平（Z0：0%、Z1：0.2%）对番茄生长、果实产量及品质、耗水、水分利用效率的影响。结果表明,随土壤水分的增加,番茄株高、植株生物量显著提高,W3处理的生物量分别比W2、W1高出20.8%和35.9%,但果实产量表现为先升高后降低的趋势,即W2〉W3〉W1的变化规律,过高的土壤水分或土壤干旱使果实产量明显降低;叶面喷施锌溶液对生物量的影响不明显,但使W1、W2、W3下的果实产量分别提高9.4%、9.2%和3.1%,且使果实口味改善、品质提高;土壤水分的提高使植株的耗水量增加,却降低了水分利用效率,水分和喷施锌溶液对以生物量计的水分利用效率影响不显著,但对以果实产量计和营养成分计的水分利用效率均达到显著程度,W2Z1处理的水分利用效率最高分别为：WUE产量=61.62 kg/m^3、WUEVc=9.56 mg/m^3、WUE糖=4.7 g/m^3。

关键词：番茄锌亏缺灌溉品质产量水分利用效率

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

乌江特大桥索塔锚固区节段足尺模型试验参数的确定

引用

土木工程与管理学报 2017年第4期34卷 7-13页

作者：吴巧云代健州魏敏潘伟杰武汉工程大学资源与土木工程学院湖北武汉430073 华中科技大学土木工程与力学学院湖北武汉430074

本文以遵贵扩容高速公路乌江特大桥为依托,对斜拉桥索塔锚固区段进行了分析研究,综合考虑设计索力大小、斜拉索角度、索塔整体受力叠加效应等综合因素,按最不利原则确定截取的索塔锚固区节段。针对所截取节段分别向上、向下延伸一定距离... 详细信息

本文以遵贵扩容高速公路乌江特大桥为依托,对斜拉桥索塔锚固区段进行了分析研究,综合考虑设计索力大小、斜拉索角度、索塔整体受力叠加效应等综合因素,按最不利原则确定截取的索塔锚固区节段。针对所截取节段分别向上、向下延伸一定距离,以保证结构应力受模拟边界条件影响较小,同时分别取不同节段高度同实桥模型一样施加预应力、斜拉索索力、重力三项荷载,将有限元计算结果与实桥的计算模型进行比较,找出开裂能力与实桥一致的模型节段高度。文章首先介绍了乌江特大桥上塔柱斜拉索锚固区整体分析时所取用的模型情况,用ANSYS有限元软件模拟了整体模型在设计索力下的工作性能,通过对计算结果的分析,确定模型在设计索力下产生最大应力的最不利节段位置,并且给出索塔锚固区足尺试验研究所需的最不利节段高度。

关键词：斜拉桥锚固区有限元分析最不利节段

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：