检索结果-南通市图书馆

A transcriptional cascade involving BBX22 and HY5 finely regulates both plant height and fruit pigmentation in citrus

引用

Journal of Integrative Plant Biology 2024年第8期66卷 1752-1768页

作者： Jialing Fu Li Liao Jiajing Jin Zhihao Lu Juan Sun Lizhi Song Yue Huang shengjun liu Ding Huang Yuantao Xu Jiaxian He Bin Hu Yiqun Zhu Fangfang Wu Xia Wang Xiuxin Deng Qiang Xu National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070P.R.China Hubei Hongshan Laboratory Wuhan 430070P.R.China Science and Technology Innovation Research Center of Majia Pomelo Shangrao 334000China

Dwarfing is a pivotal agronomic trait affecting both yield and *** species exhibit substantial variation in plant height,among which internode length is a core ***,the molecular mechanism governing internode elongation remains ***,we unveiled that the transcriptional cascade consisting of B-BOX DOMAIN PROTEIN 22(BBX22)and ELONGATED HYPOCOTYL 5(HY5)finely tunes plant height and internode elongation in ***-of-function mutations of BBX22 in an early-flowering citrus(Citrus hindsii“SJG”)promoted internode elongation and reduced pigment accumulation,whereas ectopic expression of BBX22 in SJG,sweet orange(***),pomelo(***)or heterologous expression of BBX22 in tomato(Solanum lycopersicum)significantly decreased internode ***,exogenous application of gibberellin A3(GA3)rescued the shortened internode and dwarf phenotype caused by *** experiments revealed that BBX22 played a dual role in regulation internode elongation and pigmentation in *** the one hand,it directly bound to and activated the expression of HY5,GA metabolism gene(GA2 OXIDASE 8,GA2ox8),carotenoid biosynthesis gene(PHYTOENE SYNTHASE 1,PSY1)and anthocyanin regulatory gene(Ruby1,a MYB DOMAIN PROTEIN).On the other hand,it acted as a cofactor of HY5,enhancing the ability of HY5 to regulate target genes ***,our results reveal the critical role of the transcriptional cascade consisting of BBX22 and HY5 in controlling internode elongation and pigment accumulation in *** the crosstalk regulatory mechanism between internode elongation and fruit pigmentation provides key genes for breeding of novel types with both dwarf and health-beneficial fortification in citrus.

关键词： anthocyanins BBX22 carotenoids citrus HY5 internode elongation plant height

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

SCADA系统在能源供应系统中的应用研究

引用

自动化仪表 2024年第7期45卷 1-5页

作者：纪纲刘胜军上海同欣自动化仪表有限公司上海200070 中石化天津分公司天津300270

随着我国节能环保事业的发展和公用事业的进步,以及计算机技术、通信技术、互联网技术的成熟,数据采集与监视控制(SCADA)系统的应用获得了飞跃式发展。在能源供应领域,SCADA系统的应用从代替人工上门抄表、人工统计计算、人工现场巡查,... 详细信息

随着我国节能环保事业的发展和公用事业的进步,以及计算机技术、通信技术、互联网技术的成熟,数据采集与监视控制(SCADA)系统的应用获得了飞跃式发展。在能源供应领域,SCADA系统的应用从代替人工上门抄表、人工统计计算、人工现场巡查,发展到复杂的统计分析以及对能源供应系统进行全面的监控,在实施“双碳行动”中发挥着重要作用。首先,阐述了能源供应SCADA系统的基本功能。然后,列举了通过SCADA系统实现能源管网管理的增强功能和应用效果。最后,归纳总结了SCADA系统的发展趋势。SCADA系统在能源供应系统中的应用,对“双碳”目标的实现具有积极促进作用。

关键词：数据采集与监视控制能源供应系统供热网数据采集实时监控最佳工况效益最大化节能

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

血小板相关参数对腹膜透析患者伴发焦虑、抑郁状态的诊断效能

引用

中国医学科学院学报 2024年第1期46卷 43-48页

作者：刘辰玲朱静怡王琳琳高媛闫子毅王佳音刘圣君河北北方学院研究生院河北张家口075000 河北北方学院附属第一医院肾内科河北张家口075000

目的分析血小板相关参数与腹膜透析(PD)患者焦虑、抑郁发病的相关性,及其对PD患者伴发焦虑、抑郁状态的诊断效能。方法选取2022年9月至2023年2月河北北方学院附属第一医院PD患者245例,采用广泛性焦虑量表(GAD-7)和患者健康问卷(PHQ-9)... 详细信息

目的分析血小板相关参数与腹膜透析(PD)患者焦虑、抑郁发病的相关性,及其对PD患者伴发焦虑、抑郁状态的诊断效能。方法选取2022年9月至2023年2月河北北方学院附属第一医院PD患者245例,采用广泛性焦虑量表(GAD-7)和患者健康问卷(PHQ-9)分别评估患者焦虑、抑郁情况。收集患者个人信息和生化指标,并检测血小板计数(PLT)、平均血小板体积(MPV)和血小板分布宽度(PDW),采用Logistic回归分析血小板相关参数与PD患者伴发焦虑、抑郁状态的关系。结果245例PD患者中,焦虑发病率为15.9%,抑郁发病率为38.0%。患者透析龄(Z=-2.358,P=0.018;Z=-3.079,P=0.002)、MPV(Z=-4.953,P<0.001;Z=-7.878,P<0.001)、PDW(Z=-4.587,P<0.001;Z=-7.367,P<0.001)在焦虑组和无焦虑组、抑郁组和无抑郁组间差异均有统计学意义。相关性分析显示,MPV(r=0.358,P<0.001;r=0.489,P<0.001)、PDW(r=0.340,P<0.001;r=0.447,P<0.001)与PD患者伴发焦虑、抑郁状态具有正相关性。Logistic回归模型结果显示,MPV(P=0.022,P=0.011)、PDW(P=0.041,P=0.018)、透析龄(P=0.011,P=0.030)是PD患者伴发焦虑、抑郁状态的独立危险因素。MPV诊断PD患者伴发焦虑、抑郁状态的受试者工作特征曲线下面积分别为0.750、0.800;PDW诊断PD患者伴发焦虑、抑郁状态的受试者工作特征曲线下面积分别为0.732、0.780。结论MPV和PDW对PD伴发焦虑、抑郁状态具有较高的诊断效能,可作为评估PD患者伴发焦虑、抑郁状态的客观参考指标。

关键词：腹膜透析焦虑抑郁平均血小板体积血小板分布宽度联合诊断效能

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

反向传播神经网络的太平洋海域温跃层反演

引用

应用声学 2024年第3期43卷 669-677页

作者：丁加豪李倩倩毕德凯刘胜君山东科技大学测绘与空间信息学院青岛266590

温跃层是反映海洋温度场的重要指标。针对太平洋中东部海域复杂多变的水文情况以及传统温跃层分析模式的局限性,该文基于BOA_Argo历史网格,通过BP神经网络,建立温度剖面的经验正交系数与海面遥感数据、少量深度处海水温度之间的非线性... 详细信息

温跃层是反映海洋温度场的重要指标。针对太平洋中东部海域复杂多变的水文情况以及传统温跃层分析模式的局限性,该文基于BOA_Argo历史网格,通过BP神经网络,建立温度剖面的经验正交系数与海面遥感数据、少量深度处海水温度之间的非线性映射关系,实现海洋垂向温度剖面的实时反演,最后利用垂向梯度法获得海洋温跃层的相关参数。实验结果表明,相比于传统方法,该方法反演得到的跃层深度与测量值更加吻合,其中上层深度平均反演误差从10.3 m下降到5.7 m,下层深度平均反演误差从16.8 m下降到8.8 m。

关键词：温跃层 BP神经网络经验正交函数垂向梯度法

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

An anisotropic Chebyshev descriptor and its optimization for deformable shape correspondence

引用

Computational Visual Media 2023年第3期9卷 461-477页

作者： shengjun liu Hongyan liu Wang Chen Dong-Ming Yan Ling Hu Xinru liu Qinsong Li School of Mathematics and Statistics Central South UniversityChangsha 410000China State Key Laboratory of Multimodal Artificial Intelligence Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 101408China School of Mathematics and Statistics Hunan First Normal UniversityChangsha 410000China Big Data Institute Central South UniversityChangsha 410000China

Shape descriptors have recently gained popularity in shape matching,statistical shape modeling,*** discriminative ability and efficiency play a decisive role in these *** this paper,we first propose a novel handcrafted anisotropic spectral descriptor using Chebyshev polynomials,called the anisotropic Chebyshev descriptor(ACD);it can effectively capture shape features in multiple *** ACD inherits many good characteristics of spectral descriptors,such as being intrinsic,robust to changes in surface discretization,***,due to the orthogonality of Chebyshev polynomials,the ACD is compact and can disambiguate intrinsic symmetry sinces everal directions are *** improve the ACD’s discrimination ability,we construct a Chebyshev spectral manifold convolutional neural network(CSMCNN)that optimizes the ACD and produces a learned *** experimental results show that the ACD outperforms existing state-of-the-art handcrafted *** combination of the ACD and the CSMCNN is better than other state-of-the-art learned descriptors in terms of discrimination,efficiency,and robustness to changes in shape resolution and discretization.

关键词： anisotropic descriptor spectral descriptor shape descriptor shape matching spectral convolution deep learning

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

The study of the correlated X-ray scattering(CXS)and its data analysis

引用

Radiation Detection Technology and Methods 2019年第3期3卷 231-235页

作者： shengjun liu Department of Electronic and Information Engineering Xiamen City UniversityXiamen 361008China

Background At present,it is insufficient to understand the basic data characteristics of the correlated X-ray *** there is a great challenge about how to master the nature of the *** it is difficult to use and analyze the experimental data more *** addition,there are many reasons,for the experimental artifacts such as whether the shutter is on or off,whether there is the beam line or not,the swaying of the nozzle and the shadow of the *** it is rather challenging to analyze the scattering *** The purpose of this paper was to develop a method to filter the invalid scattering data and provide the theoretical and experiment fundamentals for studying the X-ray scattering data of the complex biological sample *** The heliummolecules were scattered by the X-ray free-electron laser in Spring8 in *** of scattering patterns were obtained from the X-ray free-electron laser *** the analysis of the scattering data,the sum,mean,median and variance of the scattering intensity were *** different clusters were obtained with the densitybased spatial clustering of applications with noise(DBSCAN)*** Based on the DBSCAN,some of the scattering patterns with high artifacts were removed and different clusters were *** the experimental scattering data could be analyzed more *** The theoretical and experiment fundamentals for comprehensively studying the X-ray scattering data of the complex biological sample were *** the data filtering,the angular autocorrelation of different clusters with Kam’s method will be computed and analyzed effectively.

关键词： Correlated X-ray scattering(CXS) Data analysis Density-based spatial clustering of applications with noise(DBSCAN) Cluster

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

外周血单个核细胞中DUSP6预警糖尿病肾病腹膜透析后不良心血管事件的价值

引用

中南大学学报（医学版） 2024年第3期49卷 359-366页

作者：郭宝珠刘俊芬韩小丽李雅琪田晓敏靳鑫卫志锋刘圣君河北北方学院附属第一医院肾内科河北张家口075000 河北北方学院附属第一医院慢病管理科河北张家口075000

目的:不良心血管事件是腹膜透析患者死亡的主要原因。探究预警腹膜透析患者发生不良心血管事件的指标对于其预后判断至关重要。本研究旨在评估外周血单个核细胞中双特异性磷酸酶6(dual-specificity phosphatase6,DUSP6)预警糖尿病肾病... 详细信息

目的:不良心血管事件是腹膜透析患者死亡的主要原因。探究预警腹膜透析患者发生不良心血管事件的指标对于其预后判断至关重要。本研究旨在评估外周血单个核细胞中双特异性磷酸酶6(dual-specificity phosphatase6,DUSP6)预警糖尿病肾病腹膜透析后不良心血管事件的价值。方法:选取2022年6至9月在河北北方学院附属第一医院肾内科接受腹膜透析治疗的124例糖尿病肾病患者作为研究对象。用蛋白质印迹法检测外周血单个核细胞中DUSP6水平。根据中位DUSP6水平将患者分为DUSP6高水平组和DUSP6低水平组。比较2组体重指数、血清白蛋白、超敏C反应蛋白和透析时长等的差异。用Pearson、Spearman及多元线性回归分析DUSP6的相关因素。随访了解患者不良心血管事件发生情况,用Kaplan-Meier和Cox回归分析患者腹膜透析后发生不良心血管事件的危险因素。结果:截至末次随访,33例(26.61%)患者发生了至少1次不良心血管事件。DUSP6高水平组的体重指数、透析时长和超敏C反应蛋白水平均高于DUSP6低水平组,血清白蛋白水平低于DUSP6低水平组(均P<0.05)。DUSP6与血清白蛋白水平呈负相关(r=-0.271,P=0.002),与透析时长(r_s=0.406,P<0.001)和超敏C反应蛋白(r_s=0.367,P<0.001)均呈正相关。多元线性回归结果显示:透析时长和超敏C反应蛋白均与DUSP6独立相关(均P<0.05)。DUSP6高水平组的累积不良心血管事件发生率高于低水平组(46.67%vs 7.81%,P<0.001)。Cox回归分析结果显示腹膜透析患者低水平血清白蛋白(HR=0.836,95%CI 0.778~0.899)、高水平超敏C反应蛋白(HR=1.409,95%CI 1.208~1.644)和高水平DUSP6(HR=6.631,95%CI 2.352~18.693)是腹膜透析患者发生不良心血管事件的独立危险因素。结论:透析时长和超敏C反应蛋白与糖尿病肾病腹膜透析患者外周血单个核细胞中DUSP6独立相关。外周血单个核细胞中DUSP6水平高提示患者发生不良心血管事件的风险高。

关键词：糖尿病肾病腹膜透析不良心血管事件双特异性磷酸酶6 外周血单个核细胞

来源：

维普期刊数据库博看期刊

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

Predictor Selection for CNN-based Statistical Downscaling of Monthly Precipitation

引用

Advances in Atmospheric Sciences 2023年第6期40卷 1117-1131页

作者： Dangfu YANG shengjun liu Yamin HU Xinru liu Jiehong XIE Liang ZHAO Central South University Changsha 410083China Guangdong Climate Center Guangzhou 510610China Jieyang Meteorological Bureau Jieyang 522031China State Key Laboratory of Numerical Modeling for Atmosphere Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

Convolutional neural networks(CNNs) have been widely studied and found to obtain favorable results in statistical downscaling to derive high-resolution climate variables from large-scale coarse general circulation models(GCMs).However, there is a lack of research exploring the predictor selection for CNN modeling. This paper presents an effective and efficient greedy elimination algorithm to address this problem. The algorithm has three main steps: predictor importance attribution, predictor removal, and CNN retraining, which are performed sequentially and iteratively. The importance of individual predictors is measured by a gradient-based importance metric computed by a CNN backpropagation technique, which was initially proposed for CNN interpretation. The algorithm is tested on the CNN-based statistical downscaling of monthly precipitation with 20 candidate predictors and compared with a correlation analysisbased approach. Linear models are implemented as benchmarks. The experiments illustrate that the predictor selection solution can reduce the number of input predictors by more than half, improve the accuracy of both linear and CNN models,and outperform the correlation analysis method. Although the RMSE(root-mean-square error) is reduced by only 0.8%,only 9 out of 20 predictors are used to build the CNN, and the FLOPs(Floating Point Operations) decrease by 20.4%. The results imply that the algorithm can find subset predictors that correlate more to the monthly precipitation of the target area and seasons in a nonlinear way. It is worth mentioning that the algorithm is compatible with other CNN models with stacked variables as input and has the potential for nonlinear correlation predictor selection.

关键词： predictor selection convolutional neural network statistical downscaling gradient-based importance metric

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

腹腔镜脾部分切除术在外伤性脾破裂中的应用分析

引用

中华肝胆外科杂志 2024年第7期30卷 544-546页

作者：吴浩然卜浩柳胜君冀定国刘驳强侯政叶劲松周后平中南大学湘雅医学院附属常德医院普外一科常德415000

探讨腹腔镜脾部分切除术治疗外伤性脾破裂的临床效果。回顾性分析2019年1月至2023年9月在中南大学湘雅医学院附属常德医院就诊的外伤性脾破裂行腹腔镜脾部分切除术的5例患者临床资料,其中男性4例,女性1例,年龄(47.0±14.3)岁。分析5例... 详细信息

探讨腹腔镜脾部分切除术治疗外伤性脾破裂的临床效果。回顾性分析2019年1月至2023年9月在中南大学湘雅医学院附属常德医院就诊的外伤性脾破裂行腹腔镜脾部分切除术的5例患者临床资料,其中男性4例,女性1例,年龄(47.0±14.3)岁。分析5例患者手术时间、术中出血量、术后住院时间、术后首次排气时间、术后并发症等。脾损伤分级(4级法):Ⅱ级4例,Ⅲ级1例。5例患者均顺利完成腹腔镜脾部分切除术,无围手术期死亡。5例患者手术时间为(182.2±76.4)min,术中出血量为(290.0±52.3)ml,术后首次排气时间为(2.8±0.6)d,术后住院时间为(7.0±3.2)d。无术后出血、胰瘘、腹腔感染等并发症。5例患者出院后随访12个月,1例患者出现血小板增多,峰值为736×109/L,予口服双嘧达莫至恢复正常上限,余患者血小板波动在200~400×10^(9)/L,CT复查均未见静脉血栓及脾梗死情况。腹腔镜脾部分切除术治疗外伤性脾破裂是安全可行的。

关键词：外伤性脾破裂脾部分切除术血小板增多正常上限术后住院时间出院后随访脾梗死胰瘘

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

Hypocoagulation induced by broadspectrum antibiotics in extensive burn patients

引用

Burns & Trauma 2019年第1期7卷 118-124页

作者： Jian liu Yiqing liu shengjun liu Qin Zhang Jiexin Zheng Yiwen Niu Xuefeng Wang Department of Burn&Plastic Surgery Ruijin HospitalShanghai Jiaotong UniversitySchool of MedicineShanghaiChina Clinical Medicine Shanghai Jiaotong UniversitySchool of MedicineShanghaiChina Transfusion Department Ruijin HospitalShanghai Jiaotong UniversitySchool of MedicineShanghaiChina

Background:Patients with extensive burns usually develop pro-coagulation soon after the injury if there is no sepsis *** describe the case of an extensive burn adult suffering from hypocoagulation not related to sepsis,but secondary to antibiotic *** presentation:Here,we report a case of an adult male patient suffering from flame burns of 45%total body surface area(40%full thickness)combined with inhalation *** with soaring prolonged activated partial thromboplastin time value occurred on third week post-burn while systemic infection had been under control by application of broad-spectrum *** showed that not the infection but vitamin K-related coagulation factor deficiency were responsible for unexpected ***,supplemental vitamin K was not the key as we expected,which prompted us trying to decode the underlying cause of coagulation disturbance in this patient and pick out the most effective treatment for *** the withdrawal of highly suspected broad-spectrum antibiotic,Meropenem^(■),disturbed vitamin K related coagulation factors gradually restored to their optimal levels so as to maintain normal coagulation ***,surgical procedures without further risk of bleeding could be carried out in time for wound *** patient was discharged on post-burn day 67 and transferred to a secondary hospital for his ***:Hypocoagulopathy may be devoted to different reasons other than sepsis in extensive *** recognition of the cause for coagulation disturbance is critical to make appropriate treatment and save patients’*** case illustrated the importance of unveiling the mist cause for coagulation disturbance occurred in extensive burn patient,which paved the way for optimal life-saving *** we also recommend burn surgeons to be alerted to antibiotic-induced vitamin K deficiency-related coagulopathy among critical burn patients.

关键词： Hypocoagulation Extensive burns Vitamin K deficiency Antibiotic-induced coagulopathy

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

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：