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我国高技能人才培育制度的特征、问题与改进——基于42位高技能人才访谈的分析

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职教论坛 2024年第7期40卷 41-49页

作者：曹燕上海开放大学市民终身学习监测研究中心上海200433

高技能人才培育已上升到国家战略层面,而制度在高技能人才培育中发挥着先导性和全局性的作用。通过对42位高技能人才的访谈发现,我国高技能人才培育制度在资源供给、评价体系、激励机制、成才环境等方面呈现出如下特征:贯通职前职后培... 详细信息

高技能人才培育已上升到国家战略层面,而制度在高技能人才培育中发挥着先导性和全局性的作用。通过对42位高技能人才的访谈发现,我国高技能人才培育制度在资源供给、评价体系、激励机制、成才环境等方面呈现出如下特征:贯通职前职后培养全过程,深化评价激励机制改革,日益重视成长环境的制度化建设。但也存在一些问题:配套制度有待健全,可操作性不强;多元主体参与缺位,制度系统设计不足;培养模式单一固化,课程资源建设滞后;制度环境有待于进一步优化。为此,我国应进一步健全完善制度机制,加强前瞻性与可操作性;提升多元主体协同效能,构建联动的工作机制;丰富学习资源供给,创新培养模式;优化技能生态环境,营造技能成才氛围,以形成有利于高技能人才自主培养与自身成长的制度环境。

关键词：高技能人才人才培育制度环境

Cornus officinalis with high pressure wine steaming enhanced anti-hepatic fibrosis: Possible through SIRT3.AMPK axis

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Journal of Pharmaceutical Analysis 2024年第5期14卷 758-771页

作者： Xin Han yan Ning Xinyue Dou Yiwen Wang Qiyuan Shan Kao Shi Zeping Wang Chuan Ding Min Hao Kuilong Wang Mengyun Peng Haodan Kuang Qiao yang Xianan Sang Gang Cao School of Pharmacy Zhejiang Chinese Medical UniversityHangzhou311400China

Cornus officinalis,a medicinal and edible plant known for its liver-nourishing properties,has shown promise in inhibiting the activation of hepatic stellate cells(HSCs),crucial indicators of hepatic fibrosis,especially when processed by high pressure wine steaming(HPWS).Herein,this study aims to investigate the regulatory effects of cornus officinalis,both in its raw and HPWS forms,on inflammation and apoptosis in liver fibrosis and their underlying *** vivo liver fibrosis models were established by subcutaneous injection of CCl4,while in vitro HSCs were exposed to transforming growth factor-b(TGF-b).These findings demonstrated that cornus officinalis with HPWS conspicuously ameliorated histopathological injury,reduced the release of proinflammatory factors,and decreased collagen deposition in CCl4-induced rats compared to its raw *** ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometer(UHPLC-QTOF-MS)combined with network analysis,we identified that the pharmacological effects of the changed components of cornus officinalis before and after HPWS,primarily centered on the adenosine phosphate(AMP)-activated protein kinase(AMPK)*** note,cornus officinalis activated AMPK and sirtuin 3.SIRT3.,promoting the apoptosis of activated HSCs through the caspase cascade by regulating caspase3.caspase6 and *** interfering RNA(siRNA)experiments showed that cornus officinalis could regulate AMPK activity and its mediated-apoptosis through *** conclusion,cornus officinalis exhibited the ability to reduce inflammation and apoptosis,with the SIRT3.AMPK signaling pathway identified as a potential mechanism underlying the synergistic effect of cornus officinalis with HPWS on anti-liver fibrosis.

关键词： Liver fibrosis SIRT3 Cornus officinalis AMPK Caspase6

不同含氧官能团对煤润湿性影响的分子动力学模拟研究

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中国安全生产科学技术 2024年第7期20卷 114-120页

作者：王岩中煤科工集团沈阳研究院有限公司辽宁沈阳110016 煤矿灾害防控全国重点实验室辽宁抚顺113122

为了探究不同含氧官能团对煤润湿性的影响规律,基于分子动力学(molecular dynamics,MD)理论,构建4个不同含氧官能团模拟系统(—COOH、—OH、—CO及—OCH 3.,通过模拟接触角、分子相对体积分数、径向分布函数及相互作用能结果,详细分析... 详细信息

为了探究不同含氧官能团对煤润湿性的影响规律,基于分子动力学(molecular dynamics,MD)理论,构建4个不同含氧官能团模拟系统(—COOH、—OH、—CO及—OCH 3.,通过模拟接触角、分子相对体积分数、径向分布函数及相互作用能结果,详细分析含氧官能团对煤润湿性的影响规律。研究结果表明:模拟平衡后,在—COOH体系中水团簇的接触角为18.65°,相互作用能为-1049.19 kcal/mol,并形成3.1.64个氢键。在—OH体系中水团簇的接触角为25.3.°,相互作用能为-563.83.kcal/mol,并形成178.03.氢键。在—CO体系中水团簇的接触角为3..10°,相互作用能为-444.25 kcal/mol,并形成58.3.个氢键。在—OCH 3.系中水团簇的接触角为59.96°,相互作用能为-149.00 kcal/mol,并形成13.25个氢键。水团簇与不同含氧官能团体系的接触角越小,形成的氢键越多,相互作用能绝对值越大,对煤亲水性增强作用越好,这与分子相对体积分数和径向分布函数分析结果一致;不同含氧官能团对煤亲水性增强作用排序为—COOH>—OH>—CO>—OCH 3.研究结果可为研究煤表面润湿性及其应用提供相关参考。

关键词：含氧官能团煤润湿性分子相对体积分数径向分布函数相互作用能氢键作用

An emerging draft sequence of the tomato genome-chromosome 3.sequencing in china

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An emerging draft sequence of the tomato genome-chromosome 3...

技术—经济范式赶超机遇与中国国家创新体系建设转型:概念框架、日本经验与启示

第十一届全国植物基因组学大会

作者： Jianfeng Ren~1,Liuhua yan~1,Shengxiong Huang~1,Changbao Li~2,Jiuhai Zhao~1,Bao Wang~1,Hongling Jiang~1 and Chuanyou Li~(1*) 1 institute of Genetics and Developmental Biology,chinese {3. of {3.,Beijing 100101,china 2 Beijing Vegetable Research Center,Beijing {3. of Agriculture and Forestry {3.,Beijing 100097, china

Tomato(Solanum lycopersicum) is considered as a unique model system for studying fruit biology and plant *** a small diploid genome(～950 Mb) and high synteny conservation with other Solanaceae,tomato genome will serv...

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智库理论与实践 2024年第4期9卷 33-41,65页

作者：杨燕中共四川省委党校成都610072

[目的/意义]本文从技术—经济范式理论视角把握后发经济体摆脱“追赶—落后—追赶”路径依赖,实现赶超与国家创新体系建设转型的关系,为中国在新发展阶段有效抓住新一轮技术—经济范式变革机遇、提升国家创新体系效能提供依据和思路。[... 详细信息

[目的/意义]本文从技术—经济范式理论视角把握后发经济体摆脱“追赶—落后—追赶”路径依赖,实现赶超与国家创新体系建设转型的关系,为中国在新发展阶段有效抓住新一轮技术—经济范式变革机遇、提升国家创新体系效能提供依据和思路。[方法/过程]首先,构建技术—经济范式赶超与国家创新体系建设的概念框架;然后,分析日本促进技术—经济范式超越追赶的国家创新体系建设取向;最后,辨析当前中国与日本实现技术—经济范式赶超面临的情境异同,指出中国国家创新体系建设转型的方向。[结果/结论]“导入期”和“转折期”是后发经济体实现技术—经济范式超越追赶中的关键进程,需要国家创新体系给予有效的制度、组织及资源支持。日本经验对中国国家创新体系转型有4点启示:兼顾范式追赶和范式引领两个有着本质性差异的目标,重视但不拘泥于突破核心关键技术,重点围绕潜在优势产业布局及一体化政策配套转型,以及着重思考如何借助海外投资提升中国企业的国际竞争能级。

关键词：技术—经济范式超越追赶国家创新体系日本经验新质生产力

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Simultaneous determination of five plant hormones in cotton leaves using QuEChERS combined with HPLC‒MS/MS

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Journal of Cotton Research 2024年第2期7卷 163-176页

作者： WANG Wenhao SONG Xianpeng WANG Dan MA Yajie SHAN Yongpan REN Xiangliang HU Hongyan WU Changcai yanG Jun MA yan National Key Laboratory of Cotton Biobreeding and Integrated Utilization Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyangHenan 455000China College of Agriculture Hebei Agricultural UniversityBaodingHebei 071000China Zhengzhou Research Base National Key Laboratory of Cotton Biobreeding and Integrated UtilizationZhengzhou UniversityZhengzhouHenan 450001China Western Agricultural Research Center Chinese Academy of Agricultural SciencesChangjiXinjiang 831100China

Background Plant hormones profoundly influence cotton growth,development,and responses to various ***,there is a pressing need for an efficient assay to quantify these hormones in *** this groundbreaking study,we have established QuEChERS-HPLC‒MS/MS method,for the simultaneous detection of multiple plant hormones in cotton leaves,allowing the analysis and quantification of five key plant *** Sample extraction and purification employed 0.1%acetic acid in methanol and C18 for optimal recovery of plant *** method applied to cotton demonstrated excellent linearity across a concentration range of 0.05–1 mg・L−1,with linear regression coefficients exceeding *** limits of quantification(LOQs)were 20μg・kg−1 for GA3.and 5μg・kg−1 for the other four plant *** rates for the five plant hormones matrix spiked at levels of 5,10,100,and 1000μg・kg−1 were in the range of 79.07%to 98.97%,with intraday relative standard deviations(RSDs)ranging from 2.11%to 8.47%.The method was successfully employed to analyze and quantify the five analytes in cotton leaves treated with plant growth *** The study demonstrates that the method is well-suited for the determination of five plant hormones in *** exhibits excellent selectivity and sensitivity in detecting field samples,thus serving as a robust tool for indepth research into cotton physiology.

关键词： Cotton Plant hormones QuEChERS HPLC‒MS/MS

LARGE-EDDY SIMULATION OF THREE-DIMENSIONAL VORTICAL STRUCTURES FOR AN IMPINGING TRANSVERSE JET IN THE NEAR REGION

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Journal of Hydrodynamics 2007年第3期19卷 314-321页

作者： FAN Jing-yu ZHANG yan WANG Dao-zeng Shanghai institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 China Key Laboratory of Advanced Display and System Applications （Shanghai University） Ministry of Education and SMIT Center Shanghai University Shanghai 200072 China Department of Applied Mechanics Chalmers University of Technology SE-412 96 Gothenburg Sweden Shanghai institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 China

The three-dimensional vortical structures for an impinging transverse jet in the near region were numerically investigated by means of Large-Eddy Simulation （LES）. The LES results reproduced the skewed jet shear layer vortices close to the jet nozzle and the scarf vortex in the near-wall zone in good agreement with the experimental observations. Different vortical modes in the skewed jet shear layer close to the jet nozzle were identified depending upon the velocity ratio between jet and crossflow, namely changing from an approximately axisymmetric mode to a helical one with the velocity ratios varying from 20 to 8. Moreover, the scarf vortex wrapped around the impinging jet in the near-wall zone showed distinct asymmetry with regard to its bilateral spiral legs within the near region. And the entrainment of the ambient crossflow fluids by the scarf vortex in the near-wall zone was appreciably influenced by its asymmetry and in a large part occurred on the surface of the spiral roller structures in the course of spreading downstream.

关键词： Large-Eddy Simulation (LES) impinging jet crossflow vortical structure entrainment

Water Sorption Behaviors of Five Woods above Fiber Saturation Point

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chinese Forestry Science and Technology 2003年第2期2卷 35-40页

作者： HOU Zhuqiang GUAN Ning ZHANG Lifei ZHANG ShouhuaiResearch institute of Wood Industry. chinese academy of Forestry, Beiiine 100091. P.R.{3.

Woods from Korean Larch, chinese Fir, Aspens, Manchumian, and Fortunes Paulownia were chosen for investigation. Specimens cut from the air-dried woods had a cubic shape with nominal air-dried size of 17.0 mm and 8.5 mm. Oven-died specimens were put in containers filled with water and water sorption was implemented at atmospheric pressure and room temperature. Results from the experiment could not described exactly by the model of steady state flow from Darcy' law. An empirical equation is put forward fo...

关键词： wood water sorption absorption fiber saturation point

战略性工业扩散:中国参与全球产业链重构的底线思维

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文化纵横 2024年第3期 50-60页

作者：严鹏华中师范大学中国近代史研究所中国工业文化研究中心

产业链转移与供应链重构是近年来全球性的焦点议题。从“离岸制造”到“友岸外包”,地缘政治的风云变幻重塑着全球经济地理的格局,而在所有的喧器背后,美国制造业的部门性衰退以及美国数届政府重振制造业的努力,是一种结构性的驱动力量。

关键词：工业扩散工业追赶重构全球化