检索结果-南通市图书馆

Agricultural Sciences in China 2010年第4期9卷 457-462页

作者： XU Zheng-jin, CHEN wen-fu, HUANG Rui-dong, ZHANG wen-zhong, MA Dian-rong, WANG Jia-yu, XU Hai and ZHAO Ming-hui Key Lab of Northern Japonica Rice Breeding of Liaoning Province, Shenyang Agricultural University, Shenyang 110161, P.R.China [a] Key Lab of Northern Japonica Rice Breeding of Liaoning Province Shenyang Agricultural University Shenyang 110161 P.R. China

The historical changes in rice yields across China were explored. The physiological mechanisms and genetic basis of the erect and large panicle super-high-yield plant type model for breeding japonica super rice were analyzed mainly on the panicle type, number of large vascular bundles （LVB） in the panicle neck, and the panicle type index （PTI）. In the production point of view, we suggested that, for the breeding of super-high-yield japonica rice, the erect panicle types with more LVB numbers in the panicle neck and superior upper grains in the secondary branches would be the key factors. The information has potential significance in the rice breeding and productivity not only in China but also throughout the rice production areas of the world.

关键词： super rice plant type panicle type erect panicle

不锈钢电极对重金属污染土壤的强化电动修复及电极腐蚀结晶现象与机制

在线全文

学校读者我要写书评

暂无评论

环境科学 2017年第3期38卷 1209-1217页

作者：温东东付融冰张卫顾莹莹华东理工大学资源与环境工程学院上海200237 同济大学环境科学与工程学院上海200092 中国石油大学(华东)化学工程学院青岛266580

电极腐蚀和盐分结晶是制约土壤电动修复技术工程化应用的重要难题.本研究选择不锈钢作为电极,采用去离子水(DW)、柠檬酸(CA)和聚天冬氨酸(PASP)作为电解液,对Pb、Cu污染土壤进行强化电动修复,考察了重金属去除作用及影响因素,探讨了电... 详细信息

电极腐蚀和盐分结晶是制约土壤电动修复技术工程化应用的重要难题.本研究选择不锈钢作为电极,采用去离子水(DW)、柠檬酸(CA)和聚天冬氨酸(PASP)作为电解液,对Pb、Cu污染土壤进行强化电动修复,考察了重金属去除作用及影响因素,探讨了电极腐蚀和盐分结晶现象与机制.结果表明,在电场作用下,土壤中的Ca会迁向阴极在碱性条件下形成CaCO_3和Ca(OH)_2晶体,降低了电极的导电性;PASP对不锈钢电极有明显的缓蚀作用,CA和PASP都能明显地破坏CaCO_3晶体的形成,但无法对Ca(OH)_2晶体形成有效的破坏;CA和PASP都能促进土壤中Pb的去除,但PASP对Cu去除强化作用不明显,而CA对Cu的去除强化作用非常显著;不锈钢配合不同的缓蚀剂、增强剂联合使用,可以作为电动修复技术工程化应用的电极选择.

关键词：重金属污染土壤电动修复不锈钢电极腐蚀结晶聚天冬氨酸柠檬酸

在线全文

学校读者我要写书评

暂无评论

中草药及其有效成分体外抗菌抗病毒研究进展

中兽医医药杂志 2006年第5期25卷 66-67页

作者：傅文栋云南中科胚胎工程生物技术有限公司云南昆明650217

许多中草药及其有效成分在抗菌、抗病毒方面具有作用范围广、不易产生耐药性等特点而得到广泛的应用。随着对中草药及其有效成分研究的不断深入,其在体外的抗菌、抗病毒方面的药理作用不断被发现。本文就常见中草药及其有效成分体外抗... 详细信息

许多中草药及其有效成分在抗菌、抗病毒方面具有作用范围广、不易产生耐药性等特点而得到广泛的应用。随着对中草药及其有效成分研究的不断深入,其在体外的抗菌、抗病毒方面的药理作用不断被发现。本文就常见中草药及其有效成分体外抗菌抗病毒作用的研究进展做一综述。[第一段]

关键词：抗病毒作用体外抗菌有效成分中草药药理作用耐药性

柴油机单轨吊在付村煤业有限公司的应用性研究

在线全文

学校读者我要写书评

暂无评论

价值工程 2014年第1期33卷 43-44页

作者：付文东侯宾山东能源枣矿集团付村煤业有限公司济宁277605

通过我公司柴油机单轨吊运输系统的的应用,表明了单轨吊运输系统能够降低工人劳动强度,减少运输事故的发生,满足了煤矿安全生产的需要,具有一定的推广使用前景。

关键词：柴油单轨吊辅助运输煤矿

Human neural stem cell-derived extracellular vesicles protect against ischemic stroke by activating the PI3K/AKT/mTOR pathway

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第11期20卷 3245-3258页

作者： Jiayi Wang Mengke Zhao dong fu Meina Wang Chao Han Zhongyue Lv Liang Wang Jing Liu Stem Cell Clinical Research Center The First Affiliated Hospital of Dalian Medical UniversityDalianLiaoning ProvinceChina Dalian Innovation Institute of Stem Cell and Precision Medicine DalianLiaoning ProvinceChina Institute(College)of Integrative Medicine Dalian Medical UniversityDalianLiaoning ProvinceChina

Human neural stem cell-derived extracellular vesicles exhibit analogous functions to their parental cells,and can thus be used as substitutes for stem cells in stem cell therapy,thereby mitigating the risks of stem cell therapy and advancing the frontiers of stem cell-derived *** lays a foundation for the development of potentially potent new treatment modalities for ischemic ***,the precise mechanisms underlying the efficacy and safety of human neural stem cell-derived extracellular vesicles remain unclear,presenting challenges for clinical *** promote the translation of therapy based on human neural stem cell-derived extracellular vesicles from the bench to the bedside,we conducted a comprehensive preclinical study to evaluate the efficacy and safety of human neural stem cell-derived extracellular vesicles in the treatment of ischemic *** found that administration of human neural stem cell-derived extracellular vesicles to an ischemic stroke rat model reduced the volume of cerebral infarction and promoted functional recovery by alleviating neuronal *** human neural stem cell-derived extracellular vesicles reduced neuronal apoptosis by enhancing phosphorylation of phosphoinositide 3-kinase,mammalian target of rapamycin,and protein kinase B,and these effects were reversed by treatment with a phosphoinositide 3-kinase *** findings suggest that human neural stem cell-derived extracellular vesicles play a neuroprotective role in ischemic stroke through activation of phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin signaling ***,we showed that human neural stem cell-derived extracellular vesicles have a good in vivo safety ***,human neural stem cell-derived extracellular vesicles are a promising potential agent for the treatment of ischemic stroke.

关键词： behavior exosome extracellular vesicles ischemic stroke mammalian target of rapamycin(mTOR) middle cerebral artery occlusion neural stem cells neuronal apoptosis phosphoinositide 3-kinase(PI3K) protein kinase B(AKT)

Single-cell omics: experimental workflow, data analyses and applications

在线全文

学校读者我要写书评

暂无评论

Science China Life Sciences 2025年第1期68卷 5-102页

作者： Fengying Sun Haoyan Li dongqing Sun Shaliu fu Lei Gu Xin Shao Qinqin Wang Xin dong Bin Duan Feiyang Xing Jun Wu Minmin Xiao Fangqing Zhao Jing-dong J.Han Qi Liu Xiaohui Fan Chen Li Chenfei Wang Tieliu Shi Department of Clinical Laboratory the Affiliated Wuhu Hospital of East China Normal University (The Second People's Hospital of Wuhu City) Pharmaceutical Informatics Institute College of Pharmaceutical SciencesZhejiang University Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University) Ministry of EducationOrthopaedic DepartmentTongji HospitalBioinformatics DepartmentSchool of Life Sciences and TechnologyTongji University Frontier Science Center for Stem Cells School of Life Sciences and TechnologyTongji University Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine Shanghai East HospitalBioinformatics DepartmentSchool of Life Sciences and TechnologyTongji University Research Institute of Intelligent Computing Zhejiang Lab Shanghai Research Institute for Intelligent Autonomous Systems Center for Single-cell Omics School of Public HealthShanghai Jiao Tong University School of Medicine National Key Laboratory of Chinese Medicine Modernization Innovation Center of Yangtze River DeltaZhejiang University Center for Bioinformatics and Computational Biology Shanghai Key Laboratory of Regulatory Biologythe Institute of Biomedical Sciences and School of Life SciencesEast China Normal University Beijing Institutes of Life Science Chinese Academy of Sciences Peking-Tsinghua Center for Life Sciences Academy for Advanced Interdisciplinary StudiesCenter for Quantitative Biology (CQB)Peking University Zhejiang Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases Women's HospitalZhejiang University School of Medicine Key Laboratory of Advanced Theory and Application in Statistics and Data Science-MOE School of StatisticsEast China Normal University

Cells are the fundamental units of biological systems and exhibit unique development trajectories and molecular features. Our exploration of how the genomes orchestrate the formation and maintenance of each cell, and control the cellular phenotypes of various organismsis, is both captivating and intricate. Since the inception of the first single-cell RNA technology, technologies related to single-cell sequencing have experienced rapid advancements in recent years. These technologies have expanded horizontally to include single-cell genome, epigenome,proteome, and metabolome, while vertically, they have progressed to integrate multiple omics data and incorporate additional information such as spatial sc RNA-seq and CRISPR screening. Single-cell omics represent a groundbreaking advancement in the biomedical field,offering profound insights into the understanding of complex diseases, including cancers. Here, we comprehensively summarize recent advances in single-cell omics technologies, with a specific focus on the methodology section. This overview aims to guide researchers in selecting appropriate methods for single-cell sequencing and related data analysis.

关键词： single-cell sequencing genome epigenome proteomics metabolomics multimodal spatial transcriptomics CRISPR screening

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

公羊生殖保健对供体母羊超数排卵的影响

中兽医医药杂志 2014年第4期33卷 36-37页

作者：蔡涛周勇傅文栋新疆农业职业技术学院新疆昌吉831100 昌吉州动物疾病控制中心新疆昌吉831100

为探讨肉用种公羊生殖保健技术对胚胎移植供体母羊超数排卵的影响,本研究以纯种萨福克肉用种公羊为实验材料,分别用保健和未保健种公羊对相同超排方法供体母羊实施常规人工输精和内窥镜输精,对比其超排效果。实验结果表明,内窥镜输精获... 详细信息

为探讨肉用种公羊生殖保健技术对胚胎移植供体母羊超数排卵的影响,本研究以纯种萨福克肉用种公羊为实验材料,分别用保健和未保健种公羊对相同超排方法供体母羊实施常规人工输精和内窥镜输精,对比其超排效果。实验结果表明,内窥镜输精获胚率较高(P0.05)。

关键词：公羊生殖保健供体母羊超数排卵妊娠率

在线全文

学校读者我要写书评

暂无评论

肉羊养殖中微生态制剂的研究与应用进展

草食家畜 2015年第3期 1-5页

作者：蔡涛赵泽傅文栋新疆农业职业技术学院新疆昌吉831100 新疆维吾尔自治区农业厅食品安全办公室新疆乌鲁木齐830052 新疆昌吉州动物疾控中心新疆昌吉831100

生态制剂是具有活性的新型饲料添加剂,目前在我国饲料行业内正处于开发和实验的过程中,因此,在畜牧生产中进行饲料调制时,不能与其他饲料添加剂随意混合使用,而必须对新研发的微生态制剂的菌种进行比较完整的毒理学试验和相应的安全测试... 详细信息

生态制剂是具有活性的新型饲料添加剂,目前在我国饲料行业内正处于开发和实验的过程中,因此,在畜牧生产中进行饲料调制时,不能与其他饲料添加剂随意混合使用,而必须对新研发的微生态制剂的菌种进行比较完整的毒理学试验和相应的安全测试,确定对养殖畜禽没有毒副作用后才可以在畜牧生产中进行推广应用。微生态制剂在肉羊养殖中应用时,既可以改善羊只瘤胃的发酵环境,恢复消化道优势菌群及机体内微生物的平衡,提高饲料的消化和利用效率,提升肉羊的生产性能和产品质量;又能减少蛋白质向氨和胺的转化,降低粪便恶臭,改善环境卫生;还能刺激羊只肠道内的免疫功能,及时杀死入侵病菌,增强羊只对疾病的免疫能力。因此微生态制剂的适量适时利用,在肉羊养殖中有着显著的社会效益和经济效益。

关键词：肉羊养殖微生态制剂菌种

Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO2 photoreduction

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2025年第01期 201-208页

作者： Hui-Feng Wang wen-Jie Shi Yu-Xin Yang Bao-Xia dong Tong-Bu Lu Di-Chang Zhong School of Chemistry and Chemical Engineering Yangzhou University Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

关键词：

同方期刊数据库

在线全文

学校读者我要写书评

暂无评论

矿井供电系统防越级跳闸应用与试验

价值工程 2015年第8期34卷 58-59页

作者：付文东渠润生山东能源枣矿集团付村煤业有限公司枣庄277000

矿井供电系统防越级跳闸技术研究成果于2014年10月在付煤公司35/6KV变电所、井下中央变电所、南翼集中变电所、北翼集中变电所、北翼一变、东四一变、东四三变以及各变电所外围需要装表计量的配电点得到全面应用。

关键词：供电系统越级跳闸供电安全