检索结果-南通市图书馆

The endo-beta mannase MAN7 contributes to cadmium tolerance by modulating root cell wall binding capacity in Arabidopsis thaliana

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2023年第7期65卷 1670-1686页

作者： Qi Wu yu ting meng Zhi Hang Feng Ren Fang Shen Xiao Fang Zhu State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China College of Environmental and Resource Sciences Zhejiang UniversityHangzhou 310058China

The heavy metal cadmium(Cd) is detrimental to crop growth and threatens human health through the food chain. To cope with Cd toxicity,plants employ multiple strategies to decrease Cd uptake and its root-to-shoot translocation. However, genes that participate in the Cd-induced transcriptional regulatory network, including those encoding transcription factors, remain largely unidentified. In this study, we demonstrate that ENDO-BETA-MANNASE 7(MAN7) is necessary for the response of Arabidopsis thaliana to toxic Cd levels. We show that MAN7 is responsible for mannase activity and modulates mannose content in the cell wall, which plays a role in Cd compartmentalization in the cell wall under Cd toxicity conditions. Additionally,the repression of root growth by Cd was partially reversed via exogenous application of mannose,suggesting that MAN7-mediated cell wall Cd redistribution depends on the mannose ***, we identified a basic leucine zipper(bZIP) transcription factor, bZIP44, that acts upstream of MAN7 in response to Cd *** dual-luciferase assays indicated that bZIP44 directly binds to the MAN7 promoter region and activates its transcription. Loss of bZIP44 function was associated with greater sensitivity to Cd treatment and higher accumulation of the heavy metal in roots and ***, MAN7 overexpression relieved the inhibition of root elongation seen in the bzip44mutant under Cd toxicity conditions. This study thus reveals a pathway showing that MAN7-associated Cd tolerance in Arabidopsis is controlled by bZIP44 upon Cd exposure.

关键词： Arabidopsis thaliana bZIP44 cadmium cell wall MAN7 mannose

Atomically precise nickel-sulfur clusters for efficient electrochemical 2,5-hydroxymethylfurfural oxidation

在线全文

学校读者我要写书评

暂无评论

Nano Research 2025年第1期18卷 140-148页

作者： Fen Wang Lu-yu Liu Sha-Sha Cui ting-ting Li Xiao-meng Yang Zhijuan Liu Yanyong Wang Henan Key Laboratory of Crystalline Molecular Functional Materials Henan International Joint Laboratory of Tumor Theranostical Cluster MaterialsGreen Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou 450001China State Key Laboratory of Chem/Bio-sensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China

Nickel sulfide exhibits excellent catalytic activity in the electrochemical 2,5-hydroxymethylfurfural oxidation reaction(HMFOR).However,due to the polydispersity of nanoparticles,it is difficult to establish a clear structure-activity relationship at the atomic *** this work,we have successfully synthesized atomically precise Ni_(6)(PET)_(12)and Ni_(4)(PET)_(8)clusters(PET:2-phenylethanethiol)for ***^(2+)and S_(2)-with atomic ratio of 1:2 was mainly existed in Ni_(6)(PET)_(12)and Ni_(4)(PET)_(8)to form Ni-S *** electrochemical test results have suggested both Ni_(6)(PET)_(12)and Ni_(4)(PET)_(8)displayed outstanding electrocatalytic ability for *** Ni_(6)(PET)_(12)exhibited better electrocatalytic ability than Ni_(4)(PET)_(8)with higher current density,lower overpotential and faster reaction *** superior electrochemical ability of Ni_(6)(PET)_(12)may be due to the enhanced adsorption towards HMF molecule with strong interaction towards hydroxyl group and furan ***,it found that the Ni^(2+)species in Ni_(6)(PET)_(12)could rapidly oxidized into Ni^(3+)species,which could spontaneously capture electron and proton from HMF for *** theoretical calculation demonstrated that the Ni_(6)(PET)_(12)process lower free energy barrier than Ni_(4)(PET)_(8)to display excellent electrocatalytic *** work is of great significance for designing efficient electrocatalysts for HMFOR.

关键词： atomically precise nickel nanoclusters 2 5-hydroxymethylfurfural electro-oxidation Ni3+species

miRNA-21-5p is an important contributor to the promotion of injured peripheral nerve regeneration using hypoxia-pretreated bone marrow-derived neural crest cells

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

Neural Regeneration Research 2025年第1期20卷 277-290页

作者： meng Cong Jing-Jing Hu Yan yu Xiao-Li Li Xiao-ting Sun Li-ting Wang Xia Wu Ling-Jie Zhu Xiao-Jia Yang Qian-Ru He Fei Ding Hai-Yan Shi School of Medicine Nantong UniversityNantongJiangsu ProvinceChina Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education and Coinnovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Physiology Jiangsu Health Vocational CollegeNanjingJiangsu ProvinceChina Department of Pathology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina

Our previous study found that rat bone marrow–derived neural crest cells(acting as Schwann cell progenitors)have the potential to promote long-distance nerve ***-based therapy can enhance peripheral nerve repair and regeneration through paracrine bioactive factors and intercellular ***,the complex contributions of various types of soluble cytokines and extracellular vesicle cargos to the secretome remain *** investigate the role of the secretome and extracellular vesicles in repairing damaged peripheral nerves,we collected conditioned culture medium from hypoxia-pretreated neural crest cells,and found that it significantly promoted the repair of sensory neurons damaged by oxygen-glucose *** mRNA expression of trophic factors was highly expressed in hypoxia-pretreated neural crest *** performed RNA sequencing and bioinformatics analysis and found that miR-21-5p was enriched in hypoxia-pretreated extracellular vesicles of neural crest ***,to further clarify the role of hypoxia-pretreated neural crest cell extracellular vesicles rich in miR-21-5p in axonal growth and regeneration of sensory neurons,we used a microfluidic axonal dissociation model of sensory neurons in vitro,and found that hypoxia-pretreated neural crest cell extracellular vesicles promoted axonal growth and regeneration of sensory neurons,which was greatly dependent on loaded ***,we constructed a miR-21-5p-loaded neural conduit to repair the sciatic nerve defect in rats and found that the motor and sensory functions of injured rat hind limb,as well as muscle tissue morphology of the hind limbs,were obviously *** findings suggest that hypoxia-pretreated neural crest extracellular vesicles are natural nanoparticles rich in ***-21-5p is one of the main contributors to promoting nerve regeneration by the neural crest cell *** helps to explain the mechanism of action of the secretome and e

关键词： axotomy cell-free therapy conditioned medium extracellular vesicles hypoxic preconditioning microRNA oxygen-glucose deprivation peripheral nerve injury Schwann cell precursors

谁可能延迟退休?——“弹性延迟退休”的人口学分析

在线全文

学校读者我要写书评

暂无评论

南方人口 2021年第6期36卷 1-15页

作者：余梦婷中国人民大学社会与人口学院北京100872

《"十四五"规划和2035年远景目标纲要》提出要实行"弹性延迟法定退休年龄",引起了社会高度关注。为了增加民众对弹性延迟退休政策的理解与支持,本文从人口学的视角,以"人年数"指标为切入点,通过因素分解分别计算了"人数"和"年数"变化对... 详细信息

《"十四五"规划和2035年远景目标纲要》提出要实行"弹性延迟法定退休年龄",引起了社会高度关注。为了增加民众对弹性延迟退休政策的理解与支持,本文从人口学的视角,以"人年数"指标为切入点,通过因素分解分别计算了"人数"和"年数"变化对我国养老压力的影响,阐明了延迟退休的必要性;同时强调应多维度地理解"人口变化",不能仅关注人口数量减少,受教育年限和预期寿命增加带来的养老压力,还应看到这些变化也意味着我国人口综合素质的提升,具备了延迟退休的条件。此外,本文还通过对不同队列、性别及受教育程度人口"人年数"变化趋势的测算,分析不同特征人口养老压力的差异化,阐述了延迟退休"弹性实施,分类推进"的人口学依据,为政策顺利实施争取更多的理解与支持。

关键词：人年数养老支持比弹性延迟退休

父亲母乳喂养健康教育重要性、必要性及可行性分析

在线全文

学校读者我要写书评

暂无评论

中国公共卫生 2019年第11期35卷 1588-1592页

作者：余梦婷樊丹凤杜亚平浙江大学医学院浙江杭州310058 浙江大学医学院附属妇产科医院产科

母乳是最适合新生儿的食物,母乳喂养是为婴儿提供生长发育所需营养的理想方式。但母乳喂养开展现状不尽人意,母乳喂养促进工作有待进一步开展。母乳喂养健康教育是提高母乳喂养率的可行方法,而父亲母乳喂养健康教育应获得更多的关注。... 详细信息

母乳是最适合新生儿的食物,母乳喂养是为婴儿提供生长发育所需营养的理想方式。但母乳喂养开展现状不尽人意,母乳喂养促进工作有待进一步开展。母乳喂养健康教育是提高母乳喂养率的可行方法,而父亲母乳喂养健康教育应获得更多的关注。父亲在母乳喂养中扮演着重要角色,对其进行教育可增强其对母乳喂养的支持能力,促进母乳喂养的顺利开展。本文基于父亲母乳喂养相关研究,对开展父亲母乳喂养健康教育的重要性、必要性及可行性进行分析,以提高社会对父亲母乳喂养健康教育的重视,并为教学开展提供内容方法,促进该种教育的实施与推广,为母乳喂养带来益处。

关键词：母乳喂养父亲健康教育社会支持

在线全文

学校读者我要写书评

暂无评论

尾随半挂车队列行进的轿车燃油经济性研究

浙江大学学报（工学版） 2021年第3期55卷 455-461,518页

作者：于梦婷汪怡平苏楚奇陶琦史建鹏武汉理工大学现代汽车零部件技术湖北省重点实验室湖北武汉430070 武汉理工大学汽车零部件技术湖北省协同创新中心湖北武汉430070 武汉理工大学湖北省新能源与智能网联车工程技术研究中心湖北武汉430070 东风汽车集团有限公司技术中心湖北武汉430070

为了精确研究队列中汽车的燃油消耗情况,以一辆轿车尾随一辆半挂车为例,对轿车队列尾随过程进行数值模拟,得到尾随过程中轿车的气动阻力系数.建立轿车散热器-风扇一维散热模型,得到轿车风扇的功率,利用汽车行驶方程,推导得到基于气动阻... 详细信息

为了精确研究队列中汽车的燃油消耗情况,以一辆轿车尾随一辆半挂车为例,对轿车队列尾随过程进行数值模拟,得到尾随过程中轿车的气动阻力系数.建立轿车散热器-风扇一维散热模型,得到轿车风扇的功率,利用汽车行驶方程,推导得到基于气动阻力系数及风扇功率的车辆净燃油节省率公式,研究队列中尾随轿车的燃油经济性.结果表明:发动机舱散热对尾随轿车的燃油消耗有一定影响,且间距越大影响越大;轿车的净燃油节省率随车间距的增大而减小,在间距为0.5至1.0倍轿车车长内时,轿车的净燃油节省率对间距变化最敏感.

关键词：汽车空气动力学队列行驶燃油消耗数值模拟发动机散热

桂林红色旅游外宣资料的特点及汉英翻译策略研究

在线全文

学校读者我要写书评

暂无评论

南宁职业技术学院学报 2015年第1期20卷 97-100页

作者：余意梦婷桂林旅游高等专科学校外语系广西桂林541006

桂林红色旅游外宣资料汉英翻译的相对落后,在某种程度上阻碍了其国际市场的发展。为了解决这一难题,译者应针对其外宣资料的特点,采取以异化为主、归化为辅的翻译原则,尽可能地保留中国历史文化的特色。同时,要考虑到外国游客的期待视... 详细信息

桂林红色旅游外宣资料汉英翻译的相对落后,在某种程度上阻碍了其国际市场的发展。为了解决这一难题,译者应针对其外宣资料的特点,采取以异化为主、归化为辅的翻译原则,尽可能地保留中国历史文化的特色。同时,要考虑到外国游客的期待视野和接受程度,适当运用增译、删译和加注等翻译方法。另外译者还要把握好自己的政治立场,力争用平实、客观、公正的语言向外国游客传递中国的红色文化。

关键词：桂林红色旅游外宣资料特点翻译策略

人口流动对各省养老保险发展不均衡的影响分析

在线全文

学校读者我要写书评

暂无评论

南方人口 2020年第5期35卷 69-80页

作者：余梦婷顾宝昌中国人民大学社会与人口学院北京100872 中国人民大学人口与发展中心北京100872

在我国养老保险省级统筹的背景下,各省的养老保险发展较不均衡,一些经济发达地区的养老保险基金有大量结余,一些欠发达地区却收不抵支。为缩小这种差距,国务院多次强调要尽快实现养老保险全国统筹。本文通过年龄移算法和聚类分析法,结... 详细信息

在我国养老保险省级统筹的背景下,各省的养老保险发展较不均衡,一些经济发达地区的养老保险基金有大量结余,一些欠发达地区却收不抵支。为缩小这种差距,国务院多次强调要尽快实现养老保险全国统筹。本文通过年龄移算法和聚类分析法,结合现行的养老保险政策研究,发现人口流动改变着各省的人口年龄、类别(本地人口与流动人口)和质量(不同教育程度人口)结构,三者都是养老保险发展不均衡的重要因素。经济发达地区在这三方面形成了累积优势,与欠发达地区的差距越来越大。其中,人口年龄与人口质量结构的影响是人口规律的体现,而人口类别结构的影响则是由养老保险转移政策的倾向性带来的。本文认为,养老保险全国统筹可以从调整养老保险转移政策开始,通过人口流动来降低地区不均衡,最终走向全国统筹。

关键词：人口流动人口结构地区不均衡养老保险全国统筹

瀑布流式布局在电子商务网站界面中的创新设计

在线全文

学校读者我要写书评

暂无评论

电脑知识与技术 2013年第1X期9卷 6941-6942页

作者：张卫于梦婷南京铁道职业技术学院软件学院江苏南京210031

电子商务网站的网页界面要求结构合理有序、信息传达准确,能给用户带来良好的购物体验,功能性强;瀑布流式布局的网页界面突破传统、设计独特,兼顾艺术性与时代感,更能满足用户视觉体验上的审美需求。只有紧随时代发展的步伐,不断探索网... 详细信息

电子商务网站的网页界面要求结构合理有序、信息传达准确,能给用户带来良好的购物体验,功能性强;瀑布流式布局的网页界面突破传统、设计独特,兼顾艺术性与时代感,更能满足用户视觉体验上的审美需求。只有紧随时代发展的步伐,不断探索网页界面设计的创新,才能有力地拓展创造性思维,使电子商务网站的网页界面设计达到艺术与功效的完美统一。

关键词：电子商务瀑布流网页界面创新