检索结果-南通市图书馆

The effect of amylose on kernel phenotypic characteristics,starch-related gene expression and amylose inheritance in naturally mutated high-amylose maize

引用

Journal of Integrative Agriculture 2020年第6期19卷 1554-1564页

作者： ZHANG Xu-dong gao xue-chun LI Zhi-wei XU Lu-chun LI Yi-bo ZHANG Ren-he xue Jiquan GUO Dong-wei Key Laboratory of Biology and Genetic Improvement of Maize in Arid Area of Northwest Region Ministry of Agriculture and Rural Affairs/College of AgronomyNorthwest A&F UniversityYa ng ling 712100P.R.China Institute of Crop Science Quality of Plant ProductsUniversity of HohenheimStuttgart 70599Germany

High-amylose maize starch has great pote ntial for widespread in dustrial use due to its ability to form strong gels and film and in the food processi ng field,thus servi ng as a resista nt starch ***,there is still a substa ntial shortage of high-amylose maize due to the limitation of natural germplasm resources,although the well-known amylose extender(ae)gene mutants have bee n found to produce high-amylose maize lines since *** this con text,high-amylose maize lines(13 inbreds and 18 hybrids)originating from a natural amylose mutant in our testing field were utilized to study the correlation between amylose content(AC)and phenotypic traits(kernel morphology and endosperm glossiness),grain filling characteristics,gene expression,and amylose *** results showed that AC was negatively correlated with total starch con tent but was not correlated with grain phe no types,such as kernel full ness,kernel morphology and endosperm *** lines with higher amylose had a greater grain filling rate than that of the controI(B73)during the first 20 days after pollination(DAP).Both starch debranching enzyme(DBE)groups and starch branching enzyme lib(SBEIIb)groups showed a greater abundance in the control(B73)than in the high-amylose maize *** parents directly predicted AC of Fv which was moderately positively correlated with the F2 generation.

关键词： starch biosynthesis amylose inheritance high-amylose maize grain filling rate

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

地下连续墙施工技术应用探讨

引用

中国住宅设施 2010年第1期 46-47页

作者：高学春中国水利水电第十三工程局有限公司山东德州253009

文章简要的介绍了地下连续墙施工的主要工序及一些注意事项。从经济、安全的角度出发,施作连续墙以满足围护结构稳定、防水以及对周边环境影响等方面的要求。

关键词：地下连续墙施工工艺导墙泥浆

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

Real-world evidence on the efficacy and safety of vonoprazanamoxicillin dual therapy for Helicobacter pylori treatment in elderly patients

引用

World Journal of Gastroenterology 2025年第1期31卷 68-78页

作者： Wen gao Jing-Wen Li Hui Ye xue-Zhi Zhang Jian-Xiang Liu Hong Cheng Department of Gastroenterology Peking University First HospitalBeijing 100034China School of Medicine Tsinghua MedicineTsinghua UniversityBeijing 100034China Department of Traditional Chinese Medicine and Integrative Medicine Peking University First HospitalBeijing 100034China

BACKGROUND A dual therapy regimen containing amoxicillin is a common treatment option for the eradication of Helicobacter pylori(***).While substantial research supports the efficacy and safety of vonoprazan and amoxicillin(VA)dual therapy in the general population,there is still a lack of studies specifically focusing on its safety in elderly *** To evaluate efficacy and safety of VA dual therapy as first-line or rescue treatment for *** in elderly *** As a real-world retrospective study,data were collected from elderly patients aged 60 years and above who accepted VA dual therapy(vonoprazan 20 mg twice daily+amoxicillin 1000 mg thrice daily for 14 days)for *** eradication in the Department of Gastroenterology at Peking University First Hospital between June 2020 and January *** status was evaluated by^(13)C-urease breath test 6 weeks after *** adverse events(AEs)during treatment were *** In total,401 cases were ***-one cases were excluded due to loss to follow-up,lack of re-examination,or unwillingness to take *** total of 380 included cases comprised 250 who received VA dual therapy as first-line treatment and 130 who received VA dual therapy as rescue *** was successfully eradicated in 239 cases(95.6%)in the first-line treatment group and 116 cases(89.2%)in the rescue treatment *** overall incidence of AEs was 9.5%for both ***,9.2%of patients experienced an AE in the first-line treatment group and 10.0%in the rescue treatment *** patients discontinued treatment due to AE,with a discontinuation rate of 1.3%.No serious AE *** The VA dual therapy regimen as a first-line treatment and a rescue therapy was effective and safe for elderly patients aged 60 and older.

关键词： Helicobacter pylori Vonoprazan Amoxicillin Dual therapy Elderly

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

二氧化碳点阵激光美容技术应用于色素痣治疗中临床效果分析

引用

中国医疗美容 2019年第1期9卷 61-64页

作者：陈敏高春雪吉林国健美容医院吉林长春130013

目的探讨激光美容技术治疗色素性疾病色素痣的临床效果,为临床使用提供参考依据。方法选取我院2016年16月～2018年16月所收治色素痣色素性疾病患者78例,随机分为研究组和对照组。对照组39例,予以微创切除术;研究组39例,予以激光美容针... 详细信息

目的探讨激光美容技术治疗色素性疾病色素痣的临床效果,为临床使用提供参考依据。方法选取我院2016年16月～2018年16月所收治色素痣色素性疾病患者78例,随机分为研究组和对照组。对照组39例,予以微创切除术;研究组39例,予以激光美容针。比较两组临床表现、疗效、不良反应差异。结果研究组患者中,创面愈合时间为(8.19±1.76)d、创面疼痛评分为(2.21±1.07)分,均显著低于对照组,t分别为8.253、4.761,差异具有统计学意义(P <0.05)。研究组总有效率为97.44%,明显高于对照组的79.49%,(P <0.05)。研究组患者中,色素沉着12例、红斑1例,不良反应发生率为33.33%,明显低于对照组的69.23%,X2为8.672,差异具有统计学意义(P <0.05)。结论激激光美容技术可明显提升色素痣临床疗效,缩短治疗周期,减轻患者痛苦,且不良反应更少,安全性高,更有利于改善患者外貌美观度,值得临床推广应用。

关键词：激光美容色素痣不良反应

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 complex roles of m^(6)A modifications in neural stem cell proliferation, differentiation, and self-renewal and implications for memory and neurodegenerative diseases

引用

Neural Regeneration Research 2025年第6期20卷 1582-1598页

作者： Yanxi Li Jing xue Yuejia Ma Ke Ye xue Zhao Fangliang Ge Feifei Zheng Lulu Liu Xu gao Dayong Wang Qing Xia Department of Biochemistry and Molecular Biology College of Basic Medical SciencesHarbin Medical UniversityHarbinHeilongjiang ProvinceChina College of Basic Medical Sciences Harbin Medical UniversityHarbinHeilongjiang ProvinceChina Basic Medical Institute Heilongjiang Academy of Medical SciencesHarbinHeilongjiang ProvinceChina Key Laboratory of Heilongjiang Province for Genetically Modified Animals Harbin Medical UniversityHarbinHeilongjiang ProvinceChina Translational Medicine Research and Cooperation Center of Northern China Heilongjiang Academy of Medical SciencesHarbinHeilongjiang ProvinceChina Dongzhimen Hospital Beijing University of Chinese MedicineBeijingChina

N6-methyladenosine(m^(6)A), the most prevalent and conserved RNA modification in eukaryotic cells, profoundly influences virtually all aspects of mRNA metabolism. mRNA plays crucial roles in neural stem cell genesis and neural regeneration, where it is highly concentrated and actively involved in these processes. Changes in m^(6)A modification levels and the expression levels of related enzymatic proteins can lead to neurological dysfunction and contribute to the development of neurological diseases. Furthermore, the proliferation and differentiation of neural stem cells, as well as nerve regeneration, are intimately linked to memory function and neurodegenerative diseases. This paper presents a comprehensive review of the roles of m^(6)A in neural stem cell proliferation, differentiation, and self-renewal, as well as its implications in memory and neurodegenerative diseases. m^(6)A has demonstrated divergent effects on the proliferation and differentiation of neural stem cells. These observed contradictions may arise from the time-specific nature of m^(6)A and its differential impact on neural stem cells across various stages of development. Similarly, the diverse effects of m^(6)A on distinct types of memory could be attributed to the involvement of specific brain regions in memory formation and recall. Inconsistencies in m^(6)A levels across different models of neurodegenerative disease, particularly Alzheimer's disease and Parkinson's disease, suggest that these disparities are linked to variations in the affected brain regions. Notably, the opposing changes in m^(6)A levels observed in Parkinson's disease models exposed to manganese compared to normal Parkinson's disease models further underscore the complexity of m^(6)A's role in neurodegenerative processes. The roles of m^(6)A in neural stem cell proliferation, differentiation, and self-renewal, and its implications in memory and neurodegenerative diseases, appear contradictory. These inconsistencies may be a

关键词： Alzheimer's disease cell self-renewal central nervous system memory microglia nerve regeneration neurodegenerative diseases neurogenesis RNA methylation

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

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

引用

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang Feng gao Yu-Gui Peng Peng Wu Zong-Lin Li xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

基于冲突感知的IEEE 802.11 DCF性能分析模型

引用

燕山大学学报 2013年第2期37卷 148-152页

作者：刘洺辛高春雪燕山大学信息科学与工程学院河北秦皇岛066004

对IEEE 802.11 DCF机制的核心算法二进制指数退避算法提出一种基于冲突感知的分析模型:基于平均竞争窗口与冲突概率之间的关系,得到在饱和条件下系统的延时和吞吐量分析模型,并得出基本接入模式与RTS/CTS接入模式的切换门限值。该模型... 详细信息

对IEEE 802.11 DCF机制的核心算法二进制指数退避算法提出一种基于冲突感知的分析模型:基于平均竞争窗口与冲突概率之间的关系,得到在饱和条件下系统的延时和吞吐量分析模型,并得出基本接入模式与RTS/CTS接入模式的切换门限值。该模型简化了BEB算法,降低了计算复杂度,但能很好地反映算法特性。通过理论分析与OPNET仿真,验证了模型的正确性,同时为预测和优化无线网络系统的性能提供理论依据。

关键词： DCF 冲突概率延时饱和吞吐量切换门限值

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

论传统文化对思政课教学改革的作用

引用

铜仁学院学报 2014年第2期16卷 103-105页

作者：陈伟华高雪春铜仁学院社会科学部贵州铜仁554300 铜仁学院教务处贵州铜仁554300

传统文化蕴含着许多优秀的教学资源。加强对传统文化的研究和宣扬,对于推进思想政治课的教学改革,提升其教学效果具有十分重要的作用。因此,将思想政治教育牢牢地根植于中国传统文化这块深厚的土壤里,能提升大学生的思想道德素质和科学... 详细信息

传统文化蕴含着许多优秀的教学资源。加强对传统文化的研究和宣扬,对于推进思想政治课的教学改革,提升其教学效果具有十分重要的作用。因此,将思想政治教育牢牢地根植于中国传统文化这块深厚的土壤里,能提升大学生的思想道德素质和科学文化素质,提高思想政治教育教学的实效性,促进学生德智体全面发展。

关键词：传统文化思政课教学改革

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

汽车起动系统控制过程优化分析

引用

内燃机与配件 2021年第18期 71-72页

作者：高春雪孙保海运城职业技术大学运城044000

汽车起动系统的作用是供给发动机曲轴足够的起动转矩,使发动机曲轴达到必须的起动转速,使发动机进入自行运转的状态,当发动机进入自行运转状态后,起动机便结束任务停止工作。由此可见传统的起动系统并未对车辆或人员的安全提出要求,本... 详细信息

汽车起动系统的作用是供给发动机曲轴足够的起动转矩,使发动机曲轴达到必须的起动转速,使发动机进入自行运转的状态,当发动机进入自行运转状态后,起动机便结束任务停止工作。由此可见传统的起动系统并未对车辆或人员的安全提出要求,本文就从安全角度出发对汽车起动系统的控制过程进行优化,从而对车辆或驾驶员的安全起到一定帮助作用。

关键词：起动系统起动过程优化安全

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

徐庄矿八层煤自燃规律研究及指标气体优选

引用

能源技术与管理 2005年第1期30卷 19-21页

作者：高春学何启林安徽理工大学资源开发与管理工程系安徽淮南232001

　通过对新鲜煤样和氧化煤样的热解实验,研究了大屯煤电公司徐庄矿八层煤自燃发火特性,测定了实验煤样不同热解温度下CO、CO2、CH4、C2H4、C2H6和C3H8等气体浓度,分析了CO、CO2、C2H4等气体浓度随温度变化特性,得出了CO、C2H4气体随温... 详细信息

　通过对新鲜煤样和氧化煤样的热解实验,研究了大屯煤电公司徐庄矿八层煤自燃发火特性,测定了实验煤样不同热解温度下CO、CO2、CH4、C2H4、C2H6和C3H8等气体浓度,分析了CO、CO2、C2H4等气体浓度随温度变化特性,得出了CO、C2H4气体随温度变化的规律,讨论了徐庄矿八煤预报煤炭自燃发火指标气体的选择。

关键词：热解发火指标气体煤炭自燃

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：