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基于Valued ERGMs模型的核心技术网络成长机制研究——以量子计算领域为例
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作者 任海英 李真 《科技进步与对策》 北大核心 2024年第4期1-11,共11页
对核心技术网络及其成长机制的研究有助于梳理核心技术之间的依赖和促进关系,为研究核心技术演化提供新的理论视角和方法。以技术演化相关理论为基础,归纳核心技术网络成长的影响因素,基于量子计算领域专利数据,识别以技术概念和技术关... 对核心技术网络及其成长机制的研究有助于梳理核心技术之间的依赖和促进关系,为研究核心技术演化提供新的理论视角和方法。以技术演化相关理论为基础,归纳核心技术网络成长的影响因素,基于量子计算领域专利数据,识别以技术概念和技术关系为基础的量子计算领域核心技术网络,并基于Valued ERGMs模型构建核心技术网络成长机制模型。结果表明,技术要素中心性、专利技术研发能力、与TRIZ进化法则匹配程度以及技术要素同配性对核心技术网络成长具有正向促进作用;在技术路径方面,核心技术网络成长受到技术要素路径依赖性和技术突破的双重影响。最后,根据量子计算领域核心技术网络成长机制的实证研究结果,从技术研发层面、企业层面、政府层面为相关领域技术发展提出策略建议。 展开更多
关键词 技术演化 核心技术网络 技术网络成长机制 valued ERGMs模型 量子计算
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Efficacy and safety of anti-vascular endothelial growth factor agents on corneal neovascularization: A meta-analysis
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作者 Shih-Chung Lai El-Wui Loh +1 位作者 Du-I Chiou Chien-Tai Hong 《World Journal of Clinical Cases》 SCIE 2023年第30期7337-7349,共13页
BACKGROUND Corneal neovascularization(CoNV)is the second major cause of blindness.Vascular endothelial growth factor(VEGF)inhibitors,e.g.,bevacizumab,have been used to prevent CoNV.AIM We conducted an updated systemat... BACKGROUND Corneal neovascularization(CoNV)is the second major cause of blindness.Vascular endothelial growth factor(VEGF)inhibitors,e.g.,bevacizumab,have been used to prevent CoNV.AIM We conducted an updated systematic review and meta-analysis of clinical trials to examine the efficacy and safety of anti-VEGF in CoNV.METHODS A literature search was conducted using three electronic databases.Mean difference(MD),standard mean difference(SMD),and relative risk(RR)are used to estimate the effect size.RESULTS Nine randomized controlled and three non-randomized trials were obtained.The pooled results demonstrated a significant reduction of CoNV area/Length(SMD=-1.17,95%CI:-1.58 to-0.75),best corrected visual acuity(MD=-0.54,95%CI:-0.91 to-0.17),and graft rejection(RR=0.44,95%CI:0.24 to 0.8)and failure(RR=0.39,95%CI:0.19 to 0.78)rates in the anti-VEGF group than the placebo group.A non-significant reduction of the epithelial defect was also observed in the bevacizumab group compared with the placebo(RR=0.56,95%CI:0.30 to 1.06).Compared with a placebo,the unsynthesizable trials also support that bevacizumab improves visual acuity,CoNV,graft rejection,and failure rates.Trials reporting other comparisons revealed the superiority of combined remedy with bevacizumab compared to other treatments in reducing CoNV.CONCLUSION Anti-VEGF agents,mainly bevacizumab,are an effective and safe treatment for CoNV of all causes and prevent corneal graft rejection and failure in corneal transplantation. 展开更多
关键词 EFFICACY safety Anti-vascular endothelial growth factor agents Corneal neovascularization BEVACIZUMAB
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Diagnostic value and safety of medical thoracoscopy for pleural effusion of different causes 被引量:2
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作者 Xiao-Ting Liu Xi-Lin Dong +3 位作者 Yu Zhang Ping Fang Hong-Yang Shi Zong-Juan Ming 《World Journal of Clinical Cases》 SCIE 2022年第10期3088-3100,共13页
BACKGROUND Pleural effusions occur for various reasons,and their diagnosis remains challenging despite the availability of different diagnostic modalities.Medical thoracoscopy(MT)can be used for both diagnostic and th... BACKGROUND Pleural effusions occur for various reasons,and their diagnosis remains challenging despite the availability of different diagnostic modalities.Medical thoracoscopy(MT)can be used for both diagnostic and therapeutic purposes,especially in patients with undiagnosed pleural effusion.AIM To assess the diagnostic efficacy and safety of MT in patients with pleural effusion of different causes.METHODS Between January 1,2012 and April 30,2021,patients with pleural effusion underwent MT in the Department of Respiratory Medicine,The Second Affiliated Hospital of Xi’an Jiaotong University(Shaanxi,China).According to the discharge diagnosis,patients were divided into malignant pleural effusion(MPE),tuberculous pleural effusion(TBPE),and inflammatory pleural effusion(IPE)groups.General information,and tuberculosis-and effusion-related indices of the three groups were analyzed.The diagnostic yield,diagnostic accuracy,performance under thoracoscopy,and complications of patients were compared among the three groups.Then,the significant predictive factors for diagnosis between the MPE and TBPE groups were analyzed.RESULTS Of the 106 patients enrolled in this 10-year study,67 were male and 39 female,with mean age of 57.1±14.184 years.Among the 74 thoracoscopy-confirmed patients,41(38.7%)had MPE,21 had(19.8%)TBPE,and 32(30.2%)were undiagnosed.Overall diagnostic yield of MT was 69.8%(MPE:75.9%,TBPE:48.8%,and IPE:75.0%,with diagnostic accuracies of 100%,87.5%,and 75.0%,respectively).Under thoracoscopy,single or multiple pleural nodules were observed in 81.1%and pleural adhesions in 34.0%with pleural effusions.The most common complication was chest pain(41.5%),followed by chest tightness(11.3%)and fever(10.4%).Multivariate logistic regression analyses showed effusion appearance[odds ratio(OR):0.001,95%CI:0.000-0.204;P=0.010]and carcinoembryonic antigen(OR:0.243,95%CI:0.081-0.728;P=0.011)as significant for differentiating MPE and TBPE,with area under the receiver operating characteristic curve of 0.977(95%CI:0.953-1.000;P<0.001).CONCLUSION MT is an effective,safe,and minimally invasive procedure with high diagnostic yield for pleural effusion of different causes. 展开更多
关键词 Medical thoracoscopy Pleural effusion Diagnostic value safety Thoracoscopic performance Differential diagnosis
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DIAGNOSTIC VALUE OF SERUM INSULIN- LIKE GROWTH FACTOR BINDING PROTEIN- 3 IN CHILDREN WITH OR WITHOUT GROWTH HORMONE DEFICIENCY 被引量:4
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作者 覃舒文 史轶蘩 邓洁英 《Chinese Medical Sciences Journal》 CAS CSCD 2002年第3期160-163,共4页
关键词 胰岛素类生长因子结合蛋白-3 生长激素缺乏 诊断
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Effect of Maturity Indices on Growth and Quality of High Value Vegetables
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作者 A. K. M. Quamruzzaman Ferdouse Islam +1 位作者 Limu Akter Sharmilla Rani Mallick 《American Journal of Plant Sciences》 CAS 2022年第7期1042-1062,共21页
The study took place at Bangladesh Agricultural Research Institute’s Olericulture Division’s research farm from March 2021 to February 2022 (BARI). In a protected net house, we investigated the impact of five differ... The study took place at Bangladesh Agricultural Research Institute’s Olericulture Division’s research farm from March 2021 to February 2022 (BARI). In a protected net house, we investigated the impact of five different types of vegetables on various maturation stages, including tomato, broccoli, sweet pepper, cucumber, and netted melon. Vegetables cultivated under protected conditions in a transparent poly-film net house can improve quality, maturity, fruit size, and yield. When fruits and vegetables are picked before they are fully mature, they may stay green for longer, but they may not ripen to a satisfactory color and flavor, resulting in a loss of consumer confidence. Furthermore, because fruit continues to grow until the harvest, immature fruit will be smaller than mature fruit, reducing harvest yield. We tried to determine the right maturation stages in order to avoid product loss during our investigation. The tomato was found to be an appropriate size (6.5 cm length and 6.2 cm diameter), weight (84 g), TSS (4.5 percent), pH (4.3), “turning red”, and “tasty” at the week 5 stage, while the broccoli was found to be an appropriate size (12.0 cm length and 13.0 cm diameter), weight (360 g), and “green” color at the week 5 stage. At the week 6 stage, the nettled melon was found to be of appropriate size (15.2 cm length and 14.5 cm diameter), weight (800 g), TSS (10.8 percent), pH (6.3), “net fully developed” on the fruit skin and “much tasty,” while cucumber was found to be of appropriate size (8.8 - 10.8 cm length and 2.2 - 2.9 cm diameter), weight (61 - 88 g), TSS (3.8 - 4.1 percent), pH (6.3), “less powdery”. As a result, establishing the optimal maturity of our research will benefit both consumers and growers. 展开更多
关键词 Maturity Indices growth QUALITY High value Vegetables TSS pH Different Harvest Stages
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Effect of Different Mulch Paper on Growth and Yield of Different High Value Vegetables in Bangladesh
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作者 Ferdouse Islam AKM Quamruzzaman Sharmila Rani Mallick 《Agricultural Sciences》 2021年第3期237-246,共10页
The study was undertaken to identify the suitable mulch paper for different high-value vegetables during the winter season of November 2019 to March 2020 at the Olericulture research field of Bangladesh Agricultural R... The study was undertaken to identify the suitable mulch paper for different high-value vegetables during the winter season of November 2019 to March 2020 at the Olericulture research field of Bangladesh Agricultural Research Institute, Gazipur, Bangladesh. The study was a randomized complete block design with 3 replications. Four vegetable varieties viz., tomato, brinjal, capsicum and broccoli and 3 mulch treatments viz., T1 = Silver over black mulch;T2 = Black mulch;T3 = No mulch were included in this study. Different vegetables responded differently with the changes of mulches irrespective of different characters. it was clear that fruit number, average fruit weight, fruit length, fruit diameter were strongly related to soil moisture content. The effect of different plastic mulches on fruit weight per plant and yield (t/ha) was significant. Mulching produced higher fruit yield per plant and fruit yield per hectare than for the control, indicating that the mulch had a positive effect in generating increased fruit yield. Silver over black plastic mulch produced the highest fruit yield viz., 98.05 t/ha (tomato), 54.11 t/ha (brinjal), 34.33 t/ha (capsicum), 26.09 t/ha (broccoli) followed by black and no mulches, while the control plot produced the lowest fruit yield. 展开更多
关键词 Mulch Paper growth YIELD High value Vegetables BANGLADESH
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Beliefs and Economic Growth: Cross National Evidence Based on the World Values Survey (WVS)
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作者 姜树广 孙涛 《China Economist》 2017年第3期94-108,共15页
This paper is concerned with the relationship between beliefs and economic performance and explains the differences of country performance in global economic growth over the past two decades based on the composite bel... This paper is concerned with the relationship between beliefs and economic performance and explains the differences of country performance in global economic growth over the past two decades based on the composite belief index comprising the beliefs on trust,social justice,competition and work-leisure.By influencing personal motivations,beliefs shape society and the institutions and policies of a country in the form of collective ideology.Beliefs demonstrate great differences across countries and change with time,which helps explain the country and intertemporal differences of growth.This paper also found that China s composite belief index is very high,which helps explain China's economic growth miracle. 展开更多
关键词 BELIEF CULTURAL economic growth World values Survey(WVS)
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A Study on Mechanism of the Growth and Evolution of Intellectual Property Value Chain: A Self-Organization Perspective
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作者 Xuehe Zhang Wei Song 《American Journal of Operations Research》 2012年第2期242-246,共5页
In the rapid development of technology and knowledge-based economy against the background of the times, the IPR of enterprises participating in the process of value creation has been the key issues in the business wor... In the rapid development of technology and knowledge-based economy against the background of the times, the IPR of enterprises participating in the process of value creation has been the key issues in the business world. The resulting growth in the value chain of IP is a complicated process of evolution, and non-linear dynamics, and self-organizing system. This paper explores the intellectual property value chain from its conditions, mechanisms and dynamics as well as the inspiration for the enterprises. 展开更多
关键词 IP value CHAIN growth EVOLUTION SELF-ORGANIZATION
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Patterns of and Driving Factors in Value Growth of Industrial Real Estate in the Context of Diversified Investors
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作者 MA Ran LIU Qunhong 《Journal of Landscape Research》 2018年第3期81-84,共4页
Industrial real estate plays an increasingly important role in urban economic development and industrial restructuring.In the process of the development of industrial real estate,both the major investors of industrial... Industrial real estate plays an increasingly important role in urban economic development and industrial restructuring.In the process of the development of industrial real estate,both the major investors of industrial real estate and the value growth patterns of industrial real estate have changed.The increase in the value of industrial real estate has contributed to the promotion of urban economic upgrading,social development,and industrial restructuring.In this paper,the investment model of industrial real estate from a single government investment to a diversified model was analyzed,and the value growth patterns of industrial real estate under these two models were elaborated.It is concluded that value growth patterns under the diversification model are more diverse.This paper divided the driving factors of diversified industrial real estate value growth into two types:source factors and secondary factors,used the analytic hierarchy process(AHP) to quantify the driving factors,reached the conclusion that four factors including the industrial real estate market size and the level of independent technology of the enterprise had a major impact on the value growth of industrial real estate,and put forward suggestions for the rapid development of industrial real estate. 展开更多
关键词 Major INVESTORS Industrial REAL ESTATE value growth Driving factors
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Mining Elite Alleles of Growth Duration and Productive Panicle Number per Plant by Association Mapping with Conditional Phenotypic Value in Japonica Rice 被引量:1
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作者 JIANG Jian-hua CHEN Lan +2 位作者 LIU Qiang-ming HE Ying-jun HONG De-lin 《Rice science》 SCIE 2013年第3期200-206,共7页
To provide genetic information and materials for breeding hybrid japonica rice with wide adaptability and strong competitive advantage of yield,elite alleles and their carrier varieties of growth duration (GD) and pro... To provide genetic information and materials for breeding hybrid japonica rice with wide adaptability and strong competitive advantage of yield,elite alleles and their carrier varieties of growth duration (GD) and productive panicle number per plant (PN) were detected.A natural population composed of 94 japonica varieties was phenotyped for the GD,PN and plant height (PH) in two environments.The conditional phenotypic data were transferred by the linear model method in software QGAStation 1.0,and association mapping based on the unconditional and conditional phenotype values of GD and PN was analyzed by using general linear model in software TASSEL.A total of 34 simple sequence repeat (SSR) marker loci associated with GD and PN were detected in the two environments.Among them,15 were associated with GD,and 19 were associated with PN.Four elite alleles of RM8095-120bp,RM7102-176bp,RM72-170bp and RM72-178bp were associated with GD,and their carrier varieties were Hongmangshajing,Nipponbare,Hongmangshajing and Nannongjing 62401,respectively.These elite alleles from the carrier varieties can shorten GD by 2.03 9.93 d when they were introduced into improved materials.RM72-182bp associated with PN was an elite allele,and its carrier variety was Xiaoqingzhong.It can increase PN by three when introduced into improved materials.Moreover,these elite alleles can be used to improve target traits without influencing another two traits. 展开更多
关键词 单株有效穗数 等位基因 杂交粳稻 表型值 生育期 映射 关联 生产
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Simulation About the Growth of Chinese Firm's Safety Management Capability
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作者 刘铁忠 李志祥 《Journal of Beijing Institute of Technology》 EI CAS 2008年第3期372-378,共7页
Aiming at the deficiency of exterminating measures of Chinese firm safety management, a simulation model of Chinese firm's safety management capability based on the organizational learning theory, in which the sim... Aiming at the deficiency of exterminating measures of Chinese firm safety management, a simulation model of Chinese firm's safety management capability based on the organizational learning theory, in which the simulation method of system dynamics is utilized. The level variable and rate variable are designed based on the practical situation and change situation of corresponding variables of firm's safety management capability. Simulation firms are built with accident case groups of the oil industry, chemical industry, machine industry, coal mining industry, and weapon industry. Through analyzing the simulation result, the growth law of Chinese firm's safety management capability is obtained as follows: the accumulating and the coupling of safety knowledge should be emphasized at the same time; the balance of learning behavior of individual, group and organization should be considered together; different types of Chinese firm should take different safety policies according to their practical situations. 展开更多
关键词 中国公司 公司安全管理能力 系统动力学 增长率
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Dirichlet boundary value problem with variable growth
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作者 董增福 付永强 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2004年第3期262-266,共5页
In this paper, we study higher order elliptic partial differential equations with variable growth, and obtain the existence of solutions in the setting of Wm,p(x) spaces by means of an abstract result for variationa... In this paper, we study higher order elliptic partial differential equations with variable growth, and obtain the existence of solutions in the setting of Wm,p(x) spaces by means of an abstract result for variational inequalities obtained by Gossez and Mustonen. Our result generalizes the corresponding one of Kováik and Rákosník. 展开更多
关键词 狄利克雷边值 椭圆型偏微分方程 可变生长 Banac空间
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国际食品安全文化建设进展分析及对我国的启示
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作者 李强 张冰岩 +2 位作者 戴岳 张宏蕊 刘鹏 《食品工业科技》 CAS 北大核心 2024年第9期218-224,共7页
为探索建设适合我国国情的食品安全文化,本文收集整理全球食品安全倡议(GFSI)、世界卫生组织(WHO)、国际食品法典委员会(CAC)及欧盟、澳新、美国、英国等组织和国家开展的食品安全文化建设工作的资料,从食品安全文化的定义、出台的相关... 为探索建设适合我国国情的食品安全文化,本文收集整理全球食品安全倡议(GFSI)、世界卫生组织(WHO)、国际食品法典委员会(CAC)及欧盟、澳新、美国、英国等组织和国家开展的食品安全文化建设工作的资料,从食品安全文化的定义、出台的相关政策、建立食品安全文化的重要性、食品安全文化评价原则、应采取的有效措施和评估时使用的工具等方面进行了分析比较,并基于中国传统文化的积淀、传承、城乡食品安全现状,提出了构建中国特色食品安全文化相关建议,希望为构建符合我国国情的食品安全文化提供参考和借鉴。 展开更多
关键词 食品 食品安全文化 现代化食品安全 价值观 评价原则
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发酵白酒糟的营养价值及其在动物生产中应用的研究进展
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作者 廖云琼 康永刚 昌莉丽 《畜牧与兽医》 CAS 北大核心 2024年第2期142-148,共7页
白酒糟是酿酒产业的副产品,是一种优质的粗饲料资源。白酒糟经微生物发酵后,能改善白酒糟营养特性,提高饲用价值,进而提高白酒糟的利用率。本文综述了发酵白酒糟的营养价值、发酵工艺及对动物生长、免疫、肠道健康的影响,旨在为饲用豆... 白酒糟是酿酒产业的副产品,是一种优质的粗饲料资源。白酒糟经微生物发酵后,能改善白酒糟营养特性,提高饲用价值,进而提高白酒糟的利用率。本文综述了发酵白酒糟的营养价值、发酵工艺及对动物生长、免疫、肠道健康的影响,旨在为饲用豆粕减量替代行动的深入实施提供参考。 展开更多
关键词 发酵白酒糟 营养价值 发酵工艺 生长发育 免疫 肠道健康
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基于极值理论的地基增强系统完好性评估方法
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作者 胡杰 严勇杰 丁辉 《兵工学报》 EI CAS CSCD 北大核心 2024年第2期641-650,共10页
针对地基增强系统(Ground Based Augmentation System,GBAS)完好性风险事件的极端性而导致的无法通过风险事件发生频率评估系统性能的问题,提出一种基于极值理论的GBAS完好性评估方法。根据机载端(位置域)输出的位置误差和保护级计算安... 针对地基增强系统(Ground Based Augmentation System,GBAS)完好性风险事件的极端性而导致的无法通过风险事件发生频率评估系统性能的问题,提出一种基于极值理论的GBAS完好性评估方法。根据机载端(位置域)输出的位置误差和保护级计算安全系数,并利用区间极大值模型对安全系数进行建模描述以获得其分布模型;利用极大似然法估计安全系数模型参数,进而利用模型外推法计算GBAS完好性风险值。给出GBAS完好性评估流程,并利用GBAS系统进行了验证实验。研究结果表明:对于C类GBAS进近服务而言,基于全球定位系统(Global Position System,GPS)增强GBAS和基于北斗卫星导航系统(Beidou Navigation Satellite System,BDS)增强GBAS可用性均大于99.9999%;对于F类GBAS进近服务而言,BDS GBAS可用性能要优于GPS GBAS;根据7 d观测数据外推得到的GPS GBAS垂直和侧向完好性风险值分别为4.557×10^(-8)/进近和5.152×10^(-8)/进近,BDS GBAS垂直和侧向完好性风险值分别为1.612×10^(-7)/进近和1.823×10^(-7)/进近,满足航空器终端区I类进近与着陆导航性能需求。 展开更多
关键词 地基增强系统 完好性风险 极值理论 安全系数
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欧李在宁夏盐池人工栽培的生长及饲用特性评价
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作者 何建龙 王占军 +2 位作者 李小明 柳超超 田英 《饲料研究》 CAS 北大核心 2024年第6期120-125,共6页
研究旨在评价欧李栽培生长适应性和饲用潜力,为开展欧李在盐池地区种植及饲用开发提供参考。在宁夏盐池县高沙窝镇典型荒漠草原区撂荒地开展了引种8年的欧李(Prunus humilis Bunge)农大4号(N4)、农大5号(N5)、京欧1号(J1)的生长指标、... 研究旨在评价欧李栽培生长适应性和饲用潜力,为开展欧李在盐池地区种植及饲用开发提供参考。在宁夏盐池县高沙窝镇典型荒漠草原区撂荒地开展了引种8年的欧李(Prunus humilis Bunge)农大4号(N4)、农大5号(N5)、京欧1号(J1)的生长指标、饲用农艺性状、饲用品质、叶片相对叶绿素含量(SPAD)、光合特性和生理特性研究。结果显示:3个欧李品种在宁夏盐池栽培生长表现良好,茎叶折合鲜草产量9.51~10.90 t/hm^(2),干草产量5.15~5.74 t/hm^(2),平茬有利于欧李恢复生长,刈割后30~60 d为迅速生长期。3个欧李品种叶片SPAD值、净光合速率(Pn)、气孔导度(Gs)、胞间CO_(2)浓度(Ci)和蒸腾速率(Tr)均为:J1>N5>N4,4个光合参数具体品种间存在显著差异(P<0.05)。3个欧李品种叶片的粗蛋白(CP)含量为8.40%~13.59%,J1的CP最高;粗脂肪(EE)含量为5.74%~6.52%,J1的EE最高;粗纤维(CF)的含量为6.52%~7.83%,N5显著高于J1(P<0.05);N5叶片粗灰分(Ash)含量显著高于J1(P<0.05);N5的相对饲喂价值(RFV)显著高于J1(P<0.05)。研究表明,N4、N5、J1欧李品种综合性状表现良好,适合在宁夏荒漠草原撂荒地人工引进栽培。 展开更多
关键词 欧李 生长特性 饲用性状 适应性 饲用价值
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妊娠期糖尿病孕妇血清微小RNA-29a-3p、胰岛素样生长因子-1表达水平及其对胎儿生长受限的预测价值
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作者 郭欢欢 蔡海瑜 +1 位作者 张晓丹 周新华 《齐齐哈尔医学院学报》 2024年第2期112-117,共6页
目的探究妊娠期糖尿病(GDM)孕妇血清微小核糖核苷酸(micro RNA,miR)-29a-3p、胰岛素样生长因子-1(IGF-1)表达水平及其对胎儿生长受限的预测价值。方法选择2019年8月—2022年12月在本院202例就诊分娩的GDM患者(132例)及同期体检健康孕妇... 目的探究妊娠期糖尿病(GDM)孕妇血清微小核糖核苷酸(micro RNA,miR)-29a-3p、胰岛素样生长因子-1(IGF-1)表达水平及其对胎儿生长受限的预测价值。方法选择2019年8月—2022年12月在本院202例就诊分娩的GDM患者(132例)及同期体检健康孕妇(70名)作为研究对象,就诊分娩的GDM患者为患病组,同期体检健康孕妇为对照组。根据GDM患者是否伴有胎儿生长受限分为GDM组和胎儿生长受限组,GDM组88例,胎儿生长受限组44例。qRT-PCR法检测血清miR-29a-3p水平,放射免疫法检测血清IGF-1表达。TargetScanHuman网站预测miR-29a-3p与IGF-1靶向关系。分析miR-29a-3p、IGF-1及其与胰岛素水平、新生儿体重、新生儿身长的相关性;Logistic回归分析GDM孕妇发生胎儿生长受限的影响因素;ROC曲线分析血清miR-29a-3p,IGF-1水平评估GDM孕妇发生胎儿生长受限的预测价值。结果患病组孕妇血清miR-29a-3p水平高于对照组,IGF-1水平低于对照组,差异有统计学意义(P<0.05);GDM组患者血清miR-29a-3p水平低于胎儿生长受限组,IGF-1水平高于胎儿生长受限组,差异有统计学意义(P<0.05);miR-29a-3p直接靶向作用于IGF-1表达;GDM组和胎儿生长受限组孕妇胰岛素、新生儿体重、新生儿身长比较,差异具有统计学意义(P<0.05)。相关性分析表明,血清miR-29a-3p与IGF-1水平呈负相关(r=-0.402,P<0.05);血清miR-29a-3p水平与新生儿体重、新生儿身长呈负相关,IGF-1与新生儿体重、新生儿身长呈正相关(P<0.05)。Logistic回归分析表明,miR-29a-3p,IGF-1是GDM孕妇发生胎儿生长受限的影响因素(P<0.05)。血清miR-29a-3p,IGF-1水平联合评估GDM孕妇发生胎儿生长受限的曲线下面积(AUC)为0.877(95%CI:0.808-0.928),显著高于两指标单独检测(Z_(miR-29a-3p-联合)=2.893,P=0.004;Z_(IGF-1-联合)=2.810,P=0.005)。结论GDM孕妇血清miR-29a-3p水平上调,IGF-1水平下调,与胎儿生长受限密切相关,二者联合对GDM孕妇发生胎儿生长受限有较好预测价值。 展开更多
关键词 妊娠期糖尿病 miR-29a-3p 胰岛素样生长因子-1 胎儿生长受限 预测价值
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高校安全工作体系建设的价值逻辑、历史演进和现实启示
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作者 姚远 金建平 《承德石油高等专科学校学报》 CAS 2024年第1期84-90,共7页
建立高校安全工作体系有利于提高安全管理工作的协调性和整体性、有利于预防安全事故和减少安全隐患、有利于增强师生安全意识、有利于提升高校安全管理水平和形象。梳理新中国成立以来高校安全工作体系建设的演进历史,发现高校安全体... 建立高校安全工作体系有利于提高安全管理工作的协调性和整体性、有利于预防安全事故和减少安全隐患、有利于增强师生安全意识、有利于提升高校安全管理水平和形象。梳理新中国成立以来高校安全工作体系建设的演进历史,发现高校安全体系建设具有逐步完善、持续发展,目标导向、分类施策,统筹兼顾、重在预防,注重宣传、多方参与,运用科技、不断创新的特点以及多元化、智能化和精细化、预防为要、法治化、共享共治的发展趋势,这对完善当前高校安全工作体系以有效应对传统安全威胁和非传统安全威胁的双重挑战,具有重要意义。 展开更多
关键词 高校 安全工作体系 价值逻辑 历史演进 现实启示
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转化生长因子-β1联合腺苷脱氨酶、GeneXpert MTB/RIF在结核性胸膜炎诊断中的应用观察
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作者 王霞 张利利 +3 位作者 李晓阳 韩伟 谭磊 姜玉华 《实用医院临床杂志》 2024年第2期50-53,共4页
目的观察转化生长因子-β1(TGF-β1)联合腺苷脱氨酶(ADA)、GeneXpert MTB/RIF在结核性胸膜炎(TPE)诊断中的应用效果。方法选取2020年8月至2022年8月因渗出性胸腔积液来我院就诊的患者220例,病理检查最终确诊为TPE 92例(TPE组),细菌性胸... 目的观察转化生长因子-β1(TGF-β1)联合腺苷脱氨酶(ADA)、GeneXpert MTB/RIF在结核性胸膜炎(TPE)诊断中的应用效果。方法选取2020年8月至2022年8月因渗出性胸腔积液来我院就诊的患者220例,病理检查最终确诊为TPE 92例(TPE组),细菌性胸腔积液(BPE)68例(BPE组),恶性胸腔积液(MPE)60例(MPE组),测定胸腔积液TGF-β1、ADA,并对胸腔积液进行GeneXpert MTB/RIF检测,比较三组检测结果,分析胸腔积液TGF-β1、ADA单独及联合检测对TPE的诊断价值并确定最佳截断值,分析TGF-β1、ADA、GeneXpert MTB/RIF单独及联合诊断TPE与病理诊断的一致性。结果三组胸腔积液TGF-β1及ADA水平比较,TPE组均为最高,其次是BPE组,MPE组最低(P<0.05);ROC曲线显示,TGF-β1、ADA诊断TPE的最佳截断值分别为31.155 ng/L、28.495 U/L,对应的曲线下面积(AUC)分别为0.935、0.934,联合诊断AUC为0.987;TGF-β1、ADA联合诊断与病理诊断一致性Kappa值为0.76,GeneXpert MTB/RIF单独诊断Kappa值为0.71,联合诊断Kappa值为0.83。结论TPE患者胸腔积液TGF-β1、ADA均高于细菌性及恶性胸腔积液类型,GeneXpert MTB/RIF联合胸腔积液TGF-β1、ADA检测对TPE具有较高的诊断价值,与病理诊断一致性良好。 展开更多
关键词 转化生长因子-Β1 腺苷脱氨酶 GeneXpert MTB/RIF 结核性胸膜炎 诊断价值
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外周血Lp-PLA2和FGF23水平变化与脑梗死后认知功能障碍的相关性
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作者 马晓伟 田伟 +2 位作者 冯文霞 王立哲 张璇 《中国实用神经疾病杂志》 2024年第4期463-467,共5页
目的分析外周血脂蛋白相关磷脂酶A2(Lp-PLA2)、成纤维细胞生长因子23(FGF23)水平变化与脑梗死后患者认知功能障碍的相关性。方法选取2019-04—2022-12邯郸市中心医院收治的160例脑梗死患者为研究对象,根据患者是否发生认知功能障碍分为... 目的分析外周血脂蛋白相关磷脂酶A2(Lp-PLA2)、成纤维细胞生长因子23(FGF23)水平变化与脑梗死后患者认知功能障碍的相关性。方法选取2019-04—2022-12邯郸市中心医院收治的160例脑梗死患者为研究对象,根据患者是否发生认知功能障碍分为认知障碍组和非认知障碍组,对比2组基线资料及外周血Lp-PLA2、FGF23水平,并采用Logistic回归分析患者发生认知功能障碍的影响因素,采用Pearson相关性分析外周血Lp-PLA2、FGF23与简易智力状态评价量表(MMSE)评分的关系,采用ROC曲线评估外周血Lp-PLA2、FGF23对脑梗死后患者认知功能障碍的预测价值。结果160例脑梗死患者中,48例(30.00%)发生认知功能障碍。认知障碍组患者的平均年龄、高血压、糖尿病、吸烟、文化程度、MMSE评分及血清Lp-PLA2、FGF23水平等方面与非认知障碍组相比,差异有统计学意义(P<0.05)。Logistic回归分析显示,年龄、高血压、糖尿病、吸烟、文化程度低及血清Lp-PLA2、FGF23水平升高是影响脑梗死后认知功能障碍发生的独立危险因素(P<0.05)。Pearson相关性分析显示,脑梗死患者血清Lp-PLA2、FGF23水平与MMSE评分呈负相关(P<0.05)。ROC曲线显示,Lp-PLA2的曲线下面积为0.770,FGF23的曲线下面积为0.779,联合检测的曲线下面积为0.873(P<0.05),表示两者联合检测可作为评价脑梗死后认知功能障碍的有效指标。结论Lp-PLA2、FGF23在脑梗死后认知功能障碍患者血清中均呈高表达,二者联合检测有助于提高对脑梗死后认知功能障碍的预测价值。 展开更多
关键词 脑梗死 脂蛋白相关磷脂酶A2 成纤维细胞生长因子23 血清 认知功能障碍 危险因素 预测价值
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