检索结果-南通市图书馆

Analysis of QTLs for yield-related traits in Yuanjiang common wild rice (Oryza rufipogon Griff.)

在线全文

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2010年第2期37卷 147-157页

作者： Qiang Fu Peijiang Zhang Lubin Tan Zuofeng Zhu dan ma Yongcai Fu Xinchun Zhan Hongwei Cai Chuanqing Sun State Key Laboratory of Plant Physiology and Biochemistry National Center for Evaluation of Agricultural WiM Plants (Rice) Laboratory of Crop Heterosis and Utilization of Ministry of Education Beijing Key Laboratory of Crop Genetic Improvement Key Laboratory of Crop Genetic Improve- ment and Genome of Ministry of Agriculture Department of Plant Genetics and Breeding China Agricultural University Beijing 100193 China Institute of Rice Research Anhui Academy of Agricultural Sciences Hefei 230031 China

Using an accession of common wild rice （Oryza rufipogon Griff.） collected from Yuanjiang County, Yunnan Province, China, as the donor and an elite cultivar 93-11, widely used in two-line indica hybrid rice production in China, as the recurrent parent, an advanced backcross populations were developed. Through genotyping of 187 SSR markers and investigation of six yield-related traits of two gen- erations （BC4F2 and BC4F4）, a total of 26 QTLs were detected by employing single point analysis and interval mapping in both genera-tions. Of the 26 QTLs, the alleles of 10 （38.5%） QTLs originating from O. rufipogon had shown a beneficial effect for yield-related traits in the 93-11 genetic background. In addition, five QTLs controlling yield and its components were newly identified, indicating that there are potentially novel alleles in Yuanjiang common wild rice. Three regions underling significant QTLs for several yield-related traits were detected on chromosome 1, 7 and 12. The QTL clusters were founded and corresponding agronomic traits of those QTLs showed highly significant correlation, suggesting the pleiotropism or tight linkage. Fine-mapping and cloning of these yield-related QTLs from wild rice would be helpful to elucidating molecular mechanism of rice domestication and rice breeding in the future.

关键词： common wild rice yield-related traits advanced backcross population QTL

Primary prostate Burkitt's lymphoma resected with holmium laser enucleation of the prostate:A rare case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2023年第18期11卷 4406-4411页

作者： Yu-Fan Wu Xiang Li Jun ma dan-Yu ma Xue-Ming Zeng Qi-Wei Yu Wei-Guo Chen Department of Urology Kunshan Hospital of Traditional Chinese MedicineKunshan 215300Jiangsu ProvinceChina Department of Urology The First Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Department of Oncology The Third Affiliated Hospital of Soochow UniversitySuzhou 215300Jiangsu ProvinceChina

BACKGROUND Primary prostate Burkitt's lymphoma is a rare and aggressive condition with a poor *** clinical presentation can be challenging to differentiate from benign prostatic *** the rarity of primary prostate Burkitt's lymphoma,its diagnosis and treatment remain *** SUMmaRY This report presents a case of a 57-year-old male with primary prostate Burkitt's lymphoma,initially misdiagnosed as prostatic *** case's operative process,intraoperative findings and postoperative management are discussed in *** Primary prostate lymphoma is difficult to distinguish from other prostate *** laser enucleation of the prostate(HoLEP),a minimally invasive procedure,is crucial in diagnosing and treating this rare *** should remain vigilant and thoroughly combine physical examination,imaging and test results when encountering patients of younger age with small prostate size but a rapid progression of lower urinary tract *** is an essential diagnostic and therapeutic tool in managing primary prostate Burkitt's lymphoma.

关键词： Primary prostate Burkitt's lymphoma Holmium Laser enucleation of the prostate Prostate hyperplasia Case report

Special Unipotent Representations of Simple Linear Lie Groups of Type A

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

Acta mathematica Sinica,English Series 2024年第3期40卷 707-716页

作者： dan BARBASCH Jia Jun ma Bin Yong SUN Chen Bo ZHU Department of mathematics Cornell UniversityIthacaNY 14853USA School of mathematical Sciences Xiamen UniversityXiamen 361005P.R.China Department of mathematics Xiamen University Malaysia CampusSepangSelangor Darul Ehsan43900Malaysia Institute for Advanced Study in mathematics&New Cornerstone Science Laboratory Zhejiang UniversityHangzhou 310058P.R.China Department of mathematics National University of Singapore10 Lower Kent Ridge RoadSingapore 119076

Let G be a special linear group over the real,the complex or the quaternion,or a special unitary *** this note,we determine all special unipotent representations of G in the sense of Arthur and Barbasch-Vogan,and show... 详细信息

关键词： Special unipotent representations unitary representations coherent continuation Weyl group representations

Stabilization for Switched Linear Systems Subject to Network-Induced Delays

在线全文

学校读者我要写书评

暂无评论

Stabilization for Switched Linear Systems Subject to Network...

复合加工刀具的设计及对气缸盖气门孔加工过程验证

第26届中国控制与决策会议

作者： dan ma State Key Laboratory of Synthetical Automation for Process Industries (Northeastern University) College of Information Science and EngineeringNortheastern University

In this paper, we investigate the network-dependent hybrid controller design for a class of networked switched linear control systems. Sampling and network-induced delay cause the asynchronous motions between switched subsystems and the candidate controllers in both the state measurement and the switching signal. We rewrite the original networked switched linear systems by sampled asynchronous switched linear systems with time-varying delay. Using the asynchronous system method, we give network-dependent conditions to guarantee the system is exponentially stable, and the hybrid controller design method is also proposed.

关键词： Switched Linear Systems Network-Induced Delay Stabilization

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

内燃机与配件 2024年第17期 102-104页

作者：马丹端木学龙王俊杰郭俊宝纪超山西柴油机工业有限责任公司山西大同037036

本文讲述了复合加工刀具的主要设计过程及其对气缸盖气门孔的加工过程。由于某型号高压共轨柴油机的气缸盖是由进/排气门孔结构构成,成形磨削加工需要进行对刀、对准导管孔,并形成了气门孔磨削再配研的加工工艺,使座孔热处理后表面硬度... 详细信息

本文讲述了复合加工刀具的主要设计过程及其对气缸盖气门孔的加工过程。由于某型号高压共轨柴油机的气缸盖是由进/排气门孔结构构成,成形磨削加工需要进行对刀、对准导管孔,并形成了气门孔磨削再配研的加工工艺,使座孔热处理后表面硬度达到45 HRC~55 HRC,因磨削导致气门孔在砂轮磨粒状态下,局部划痕严重,容易造成精度及表面较差等诸多不利因素。为了解决上述等问题,本文设计的镗、铰复合加工刀具专门针对此型号气缸盖气门孔进行加工。利用有限元仿真技术对刀具的应力应变进行分析,得出刀具在加工过程的变形与应变位置及变形量都与仿真过程得到结果一致。

关键词：复合加工刀具气缸盖气门气门孔加工方法

Application of single-cell sequencing in autoimmune diseases

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2021年第4期134卷 495-497页

作者： Liang-Yu Mi Jin-Fang Gao dan ma Li-Yun Zhang Gai-Lian Zhang Ke Xu d e p a rtm e n t of Rheumatology Bethune Hospital Affiliated to Shanxi Medical UniversityTaiyuanShanxi 030032China Department of Rheumatology Shanxi Bethune HospitalTaiyuanShanxi 030032China.

To the Editor:The Human Genome Project decodes the mysteries of life,explores the pathogenesis of disease,and provides scientific evidence for the diagnosis and treatment of *** sequencing methods predominantly provide genome-wide sequence information and an average of the mix of cell types,which does not take into account the heterogeneity between cells and between *** in genome sequencing technology have allowed the development of single cell sequencing(SCS).

关键词： diagnosis diseases autoimmune

PeMeBench:中文儿科医疗问答基准测试方法

在线全文

学校读者我要写书评

暂无评论

大数据 2024年第5期10卷 28-44页

作者：张芊陈攀峰冯林坤刘淑钰马丹陈梅李晖公共大数据国家重点实验室贵州贵阳550000 贵州大学计算机科学与技术学院贵州贵阳550000

大语言模型在医疗领域显现出巨大的应用潜力,如何评估其在医疗领域中的性能成为挑战。现有医疗评测基准测试多为选择题形式,难以全面和精准地评估模型在儿科医疗场景中的性能。为此,提出首个中文儿科医疗问答基准测试方法——PeMeBench... 详细信息

大语言模型在医疗领域显现出巨大的应用潜力,如何评估其在医疗领域中的性能成为挑战。现有医疗评测基准测试多为选择题形式,难以全面和精准地评估模型在儿科医疗场景中的性能。为此,提出首个中文儿科医疗问答基准测试方法——PeMeBench。该方法基于双视角评估维度,参考来自10个儿科疾病系统的诊疗规范类书籍,将儿科医疗问答任务细分为疾病知识、治疗方案、用药剂量、疾病预防和药理作用5个儿科医疗问答子任务,构建超1万个开放式的问答题目,引入一种融合实体召回和检测语句幻觉的多粒度自动化评估方案,旨在对大语言模型在儿科基础医疗领域中的性能进行全面、准确的评估,深入剖析其潜在局限性,为提升医疗服务的智能化水平奠定坚实的基础。

关键词：儿科医疗基准测试大语言模型问答

同方期刊数据库

Dual-templating surface gel into thin SSZ-13 zeolite membrane for fast selective hydrogen separation

在线全文

学校读者我要写书评

暂无评论

Aggregate

Aggregate 2022年第6期3卷 157-165页

作者： Huazhen Rong Yixing Guan Jun Li Ziyi Li dan ma Jingjing Zhang Terence Xiaoteng Liu Xiaoqin Zou Faculty of Chemistry Northeast Normal UniversityChangchunChina School of Energy and Environmental Engineering University of Science and Technology BeijingBeijingChina Department of Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon TyneUK

Highly permeable zeolite membranes are desirable for fast gas separation in the *** the membrane’s thickness is deemed to be an optimal solution for permeability ***,we report the synthesis route of thin SSZ-13 zeolite membranes via the conversion of template-contained surface *** synthesis gel is fully crystallized into crack-free SSZ-13 membranes assisted with dual templates of N,N,N-trimethyl-1-adamantammonium hydroxide(TmadaOH)and tetraethylammonium hydroxide(TEAOH).The specific functions of TmadaOH for structure directing and TEAOH for crystallization regulating are well *** surface gel layer is impregnated onto porous alumina with subsequent crystallization into a 500 nm thick *** submicron-thick membrane exhibits high H_(2)permeance with 50×10^(-8)mol s^(-1)m^(-2)Pa^(-1)during hydrogen ***,the separation factors are retained around 23.0 and 31.5 for H_(2)/C_(2)H_(6)and H_(2)/C_(3)H_(8),*** approach offers a possibility for obtaining high-quality zeolite membranes for efficient hydrogen separation.

关键词： gas separation hydrogen selectivity zeolite membrane

Derivation and applications of human hepatocyte-like 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

World Journal of Stem Cells 2019年第8期11卷 535-547页

作者： Shuang Li Shi-Qian Huang Yong-Xu Zhao Yu-Jie Ding dan-Jun ma Qiu-Rong Ding CAS Key Laboratory of Nutrition Metabolism and Food Safety Shanghai Institute of Nutrition and Health Shanghai Institutes for Biological Sciences University of Chinese Academy of Sciences Chinese Academy of Sciences Shanghai 200031 China College of Mechanical Engineering Dongguan University of Technology Dongguan 523808 Guangdong Province China Department of Pharmacy Mudanjiang Kang’an Hospital Mudanjiang 157011 Heilongjiang Province China Institute for Stem Cell and Regeneration Chinese Academy of Sciences Beijing 100101 China

Human hepatocyte-like cells (HLCs) derived from human pluripotent stem cells (hPSCs) promise a valuable source of cells with human genetic background, physiologically relevant liver functions, and unlimited supply. With over 10 years’ efforts in this field, great achievements have been made. HLCs have been successfully derived and applied in disease modeling, toxicity testing and drug discovery. Large cohorts of induced pluripotent stem cells-derived HLCs have been recently applied in studying population genetics and functional outputs of common genetic variants in vitro. This has offered a new paradigm for genomewide association studies and possibly in vitro pharmacogenomics in the nearly future. However, HLCs have not yet been successfully applied in bioartificial liver devices and have only displayed limited success in cell transplantation. HLCs still have an immature hepatocyte phenotype and exist as a population with great heterogeneity, and HLCs derived from different hPSC lines display variable differentiation efficiency. Therefore, continuous improvement to the quality of HLCs, deeper investigation of relevant biological processes, and proper adaptation of recent advances in cell culture platforms, genome editing technology, and bioengineering systems are required before HLCs can fulfill the needs in basic and translational research. In this review, we summarize the discoveries, achievements, and challenges in the derivation and applications of HLCs.

关键词： Hepatocyte-like cells Human pluripotent stem cells Hepatic differentiation Biomedical application