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家校合作权责边界的新审视——基于博弈论的视角

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北华大学学报（社会科学版） 2024年第3期25卷 114-120,155页

作者：李军刚赵晓程东北林业大学马克思主义学院哈尔滨150040 吉林工程职业学院四平136001

学校和家庭是在青少年群体中落实立德树人根本任务的两大重要阵地,良好的家校合作事关基础教育高质量发展体系的构建。家校合作的实施过程本质上就是一场利益驱动下的双方博弈。基于博弈论视角,从教育价值、教育内容和职责、教育方法、... 详细信息

学校和家庭是在青少年群体中落实立德树人根本任务的两大重要阵地,良好的家校合作事关基础教育高质量发展体系的构建。家校合作的实施过程本质上就是一场利益驱动下的双方博弈。基于博弈论视角,从教育价值、教育内容和职责、教育方法、沟通方式、主体利益方面对家校合作与冲突的特征进行系统分析与探讨,可厘清合作博弈冲突与家校合作的内在关联。继而以家校合作双赢为目标,遵循博弈规则,建立利益主体间的表达机制、分配机制、激励机制,优化家校合作育人模式。

关键词：基础教育学校教育家庭教育家校合作权责界限博弈论

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Chromonic溶致液晶及调控研究进展

液晶与显示 2024年第3期39卷 393-408页

作者：欧梓健杨朝雁李俊钢李炳祥陆延青南京邮电大学电子与光学工程学院、柔性电子(未来技术)学院江苏南京210023 南京大学现代工程与应用科学学院固体微结构物理国家重点实验室江苏南京210093

Chromonic溶致液晶(Lyotropic Chromonic liquid Crystals,LCLCs)是由可溶性芳香族化合物自组装形成的一类溶致液晶。由于其丰富的物理各向异性、生物兼容性以及可调控性,LCLCs在生物检测、细菌操控等应用领域具有重要的研究价值。本文... 详细信息

Chromonic溶致液晶(Lyotropic Chromonic liquid Crystals,LCLCs)是由可溶性芳香族化合物自组装形成的一类溶致液晶。由于其丰富的物理各向异性、生物兼容性以及可调控性,LCLCs在生物检测、细菌操控等应用领域具有重要的研究价值。本文回顾了LCLCs调控方面的研究,简要介绍了其特性,重点分析了外场调控、掺杂等调控手段对LCLCs的影响,最后讨论和总结了可行的调控手段和未来的发展路线。

关键词：溶致液晶 Chromonic 外场调控掺杂

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我国地方肉牛品种差异化高质量发展模式探究

家畜生态学报 2024年第8期45卷 62-67页

作者：任智慧李军岗张秋云梁会锋李付营郭林英西北农林科技大学动物科技学院陕西杨凌712100 河南省郏县红牛产业发展服务中心河南郏县467100 郏县云前山红牛养殖专业合作社河南郏县467100 河南省农畜水产品检验技术研究院河南郑州

近年来,肉牛产业比较效益较低,受猪牛肉市场价格非常态联动以及地方品种普遍的生产效益较低等因素影响,肉牛产业发展的支撑效应逐渐弱化。该文解析了新常态下我国肉牛产业的新特征,并对地方品种支撑肉牛产业差异化发展新模式进行了探究... 详细信息

近年来,肉牛产业比较效益较低,受猪牛肉市场价格非常态联动以及地方品种普遍的生产效益较低等因素影响,肉牛产业发展的支撑效应逐渐弱化。该文解析了新常态下我国肉牛产业的新特征,并对地方品种支撑肉牛产业差异化发展新模式进行了探究,提出了我国地方肉牛差异化高质量发展模式的关键举措。

关键词：肉牛产业地方品种差异化生产优质牛肉生产效益

A Polysaccharide-Degrading Marine Bacterium Flammeovirga ***04 and Its Extracellular Agarase System

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Journal of Ocean University of China 2012年第3期11卷 375-382页

作者： HAN Wenjun GU Jingyan YAN Qiujie li jungang WU Zhihong GU Qianqun li Yuezhong Key Laboratory of Marine Drugs Chinese Ministry of EducationSchool of Medicine and PharmacyOcean University of ChinaQingdao 266003P.R.China School of life Science and Biotechnology Mianyang Normal UniversityMianyang 621000P.R.China State Key Laboratory of Microbial Technology School of Life ScienceShandong UniversityJinan 250100P.R.China

Bacteria of the genus Flammeovirga can digest complex polysaccharides (CPs), but no details have been reported regarding the CP depolymerases of these bacteria. MY04, an agarolytic marine bacterium isolated from coastal sediments, has been identified as a new member of the genus Flammeovirga. The MY04 strain is able to utilize multiple CPs as a sole carbon source and grows well on agarose, mannan, or xylan. This strain produces high concentrations of extracellular proteins (490 mg L-1 ± 18.2 mg L-1 liquid culture) that exhibit efficient and extensive degradation activities on various polysaccharides, especially agarose. These proteins have an activity of 310 U mg-1 ± 9.6 U mg-1 proteins. The extracellular agarase system (EAS) in the crude extracellular enzymes contains at least four agarose depolymerases, which are with molecular masses of approximately 30-70 kDa. The EAS is stable at a wide range of pH values (6.0-11.0), temperatures (0-50℃), and sodium chloride (NaCl) concentrations (0- 0.9 mol L-1). Two major degradation products generated from agarose by the EAS are identified to be neoagarotetraose and neoagarohexaose, suggesting that β-agarases are the major constituents of the MY04 EAS. These results suggest that the Flammeovirga strain MY04 and its polysac-charide-degradation system hold great promise in industrial applications.

关键词： Flammeovirga polysaccharide degradation extracellular agarase system neoagaro-oligosaccharide

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某山坡脚建筑地基基础及基坑支护设计

山西建筑 2024年第3期50卷 78-81,171页

作者：李俊刚张娇王晨邓尤贵闫虹瑞北京首钢国际工程技术有限公司北京100043 北京市冶金三维仿真设计工程技术研究中心北京100043 北京爱地地质勘察基础工程公司北京100043

以北京冬奥会技术运行中心及附属通信枢纽工程为例,对其地基基础和基坑支护设计进行了研究分析,经对比分析,得出设计方案,即南区采用地基处理+独立基础,北区采用筏板基础;为节省投资,北区不同部位采用不同的基坑支护方案;针对南北区分... 详细信息

以北京冬奥会技术运行中心及附属通信枢纽工程为例,对其地基基础和基坑支护设计进行了研究分析,经对比分析,得出设计方案,即南区采用地基处理+独立基础,北区采用筏板基础;为节省投资,北区不同部位采用不同的基坑支护方案;针对南北区分界部位,施工空间狭小,基坑采用无肥槽施工,防水采用外防内贴方式。

关键词：山地建筑地基基础地基处理基坑支护无肥槽

Lanthanum doped octacalcium phosphate/polylactic acid scaffold fabricated by 3D printing for bone tissue engineering

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Journal of Materials Science & Technology 2022年第23期118卷 229-242页

作者： Zeya Xu Bin lin Chaoqian Zhao Yanjin Lu Tingting Huang Yan Chen jungang li Rongcan Wu Wenge liu Jinxin lin Key Laboratory of Optoelectronic Materials Chemical and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences155 West Yangqiao RoadFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China Orthopedics Department Fujian Medical University Union HospitalFuzhou 350001China

Lanthanum(La)has tremendous potential in the treatment and prevention of bone diseases especially osteoporosis and metabolic ***,controlling its distribution and keeping the release of La^(3+)ions sustained and steady in the body is still a big *** this study,we prepared La-OCP powders via co-precipitation method,and further prepared La-OCP/PLA porous scaffolds by 3 D ***^(3+)was successfully introduced into the OCP crystal structure and substituted Ca^(2+)at the Ca-5 and Ca-8 *** particular,some La^(3+)ions were deposited on the crystal surface in the form of *** octacalcium phosphate(OCP,Ca_(8)H_(2)(PO_(4))_6·5 H_(2)O)crystals and nanoparticles played as the carriers for La^(3+)*** La-OCP/PLA scaffolds displayed obvious mineralization effects and sustained release of La^(3+).The scaffolds contained a uniform structure with rough micro surface topography which acted as a suitable pathway for BMSCs cells to adhere,grow and *** a certain La^(3+)concentration,the extracts from La-OCP/PLA scaffolds increased the expression of osteogenesis-related genes,thus promoting the osteogenic differentiation of ***,the extracts regulated the immune *** experiment in vivo proved that La-OCP/PLA porous scaffolds were safe and could enhance bone defect regeneration in *** findings suggest that 3 D printed La-OCP/PLA porous scaffolds have promising potentials in bone tissue engineering.

关键词： Lanthanum Octacalcium phosphate Scaffold 3D printing Bone tissue engineering Polylactic acid

加气渗灌模式下灌水定额与棉秆还田深度对棉花生长及产量的影响

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现代农业科技 2024年第4期 32-35页

作者：刘冉牛培宁刘义鲁李军刚徐鹏翔张玉玺塔里木大学水利与建筑工程学院新疆阿拉尔843300 甘肃农业大学植物保护学院甘肃兰州730000

为了探究加气渗灌模式下灌水定额和棉秆还田深度对棉花生长和产量的影响,本文以新陆中88号为研究对象,探究灌水定额和棉秆还田深度对棉花株高、茎粗、干物质量以及叶绿素相对含量的调控效应。结果表明,棉花受灌水定额影响较大,植株株高... 详细信息

为了探究加气渗灌模式下灌水定额和棉秆还田深度对棉花生长和产量的影响,本文以新陆中88号为研究对象,探究灌水定额和棉秆还田深度对棉花株高、茎粗、干物质量以及叶绿素相对含量的调控效应。结果表明,棉花受灌水定额影响较大,植株株高、茎粗、干物质量和叶片叶绿素相对含量均随着灌水定额的增大呈增加趋势。总体来看,在同一灌水定额条件下,25 cm土层处理的叶绿素相对含量大于15 cm和35 cm处理;棉秆还田深度为25 cm时,棉花株高、茎粗以及单株棉花籽棉产量均为最佳。

关键词：棉花加气渗灌灌水定额棉秆还田深度生长产量

Biomimetic hydroxyapatite coating on the 3D-printed bioactive porous composite ceramic scaffolds promoted osteogenic differentiation via PI3K/AKT/mTOR signaling pathways and facilitated bone regeneration in vivo

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Journal of Materials Science & Technology 2023年第5期136卷 54-64页

作者： Bizhi Tan Naru Zhao Wei Guo Fangli Huang Hao Hu Yan Chen jungang li Zemin ling Zhiyuan Zou Rongcheng Hu Chun liu Tiansheng Zheng Gang Wang Xiao liu Yingjun Wang Xuenong Zou Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology Department of Spine SurgeryThe First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080China School of Materials Science and Engineering South China University of TechnologyGuangzhou 510641China National Engineering Research Center for Tissue Restoration and Reconstruction Guangdong Province Key Laboratory of Biomedical EngineeringSouth China University of TechnologyGuangzhou 510006China Department of Orthopedics The First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000China

The architecture and surface modifications have been regarded as effective methods to enhance the bi-ological response of biomaterials in bone tissue *** porous architecture of the implanta-tion was essential conditions for bone ***,the design of biomimetic hydroxyap-atite(HAp)coating on porous scaffolds was demonstrated to strengthen the bioactivity and stimulate ***,bioactive bio-ceramics such asβ-tricalcium phosphate(β-TCP)and calcium sili-cate(CS)with superior apatite-forming ability were reported to present better osteogenic activity than that of *** in this study,3D-printed interconnected porous bioactive ceramicsβ-TCP/CS scaf-fold was fabricated and the biomimetic HAp apatite coating were constructed in situ via hydrothermal reaction,and the effects of HAp apatite layer on the fate of mouse bone mesenchymal stem cells(mBM-SCs)and the potential mechanisms were *** results indicated that HAp apatite coating en-hanced cell proliferation,alkaline phosphatase(ALP)activity,and osteogenic gene ***-more,PI3K/AKT/mTOR signaling pathway is proved to have an important impact on cellular *** present results demonstrated that the key molecules of phosphatidylinositol 3-kinase(PI3K),protein kinase B(AKT)and mammalian target of rapamycin(mTOR)were activated after the biomimetic hydrox-yapatite coating were constructed on the 3D-printed ceramic ***,the activated influence on the protein expression of Runx2 and BMP2 could be suppressed after the treatment of inhibitor *** vivo studies showed that the constructed HAp coating promoted bone formation and strengthen the bone *** results suggest that biomimetic HAp coating constructed on the 3D-printed bioac-tive composite scaffolds could strengthen the bioactivity and the obtained biomimetic multi-structured scaffolds might be a potential alternative bone graft for bone regeneration.

关键词： Bioactive ceramics Hydroxyapatite coating 3D-printed porous ceramic scaffold PI3K/AKT/mTOR signaling pathway Bone regeneration

Establishment and evaluation of an overlap extension polymerase chain reaction technique for rapid and efficient detection of drug-resistance in Mycobacterium tuberculosis

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Infectious Diseases of Poverty 2022年第2期11卷 32-41页

作者： jungang li Jing Ouyang Jing Yuan Tongxin li Ming Luo Jing Wang Yaokai Chen Central Laboratory Chongqing Public Health Medical CenterChongqingChina Clinical Research Center Chongqing Public Health Medical CenterChongqingChina Division of Infectious Diseases Chongqing Public Health Medical CenterShapingba District109 Baoyu RoadChongqing 400036China

Background:Rapid and accurate detection of drug resistance inMycobacterium tuberculosis is critical for effective control of tuberculosis(TB).Herein,we established a novel,low cost strategy having high accuracy and speed for the detection *** drug resistance,using gene splicing by overlap extension PCR(SOE PCR).Methods:The SOE PCR assay and Sanger sequencing are designed and constructed to detect mutations of rpoB,embB,katG,andinhA promoter,which have been considered as the major contributors to rifampicin(RFP),isoniazid(INH),and ethambutol(EMB)resistance *** hundred and *** isolates came from mycobacterial cultures of TB cases at Chongqing Public Health Medical Center in China from December 2018 to April 2019,of which 56 isolates were tested with the GeneXpert MTB/RIF *** evaluation of the SOE PCR technique was compared with traditional mycobacterial culture and drug susceptibility testing(DST)or GeneXpert MTB/RIF among these *** identity test was used to analyze the consistency of the different diagnostic ***:We found that the mutations of S531L,S315T and M306V were most prevalent for RFP,INH and EMB resistance,respectively,in the 108 *** *** with phenotypic DST,the sensitivity and specificity of the SOE PCR assay for resistance detection were 100.00% and 88.00% for RFP,94.64% and 94.23% for INH,and 68.97% and 79.75% for EMB,*** with the GeneXpert MTB/RIF,the SOE PCR method was completely consistent with results of the GeneXpert MTB/RIF,with a concordance of 100% for resistance to ***:In present study,a novel SOE PCR diagnostic method was successfully developed for the accurate detection *** drug *** results using this method have a high consistency with that of traditional phenotypic DST or GeneXpert MTB/RIF,and SOE PCR testing in clinical isolates can also be conducted rapidly and simultaneously for det

关键词： SOE-PCR Mycobacterium tuberculosis Drug-resistance Sequencing