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The Organizational Working Conditions from a Governance Perspective:An Analytical Framework

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Social Sciences in China 2021年第3期42卷 43-57页

作者： zhang Yan Li Hanlin School of Culture and Social Development Southwest University National Institute of Social Development Chinese Academy of Social Sciences

To pursue high-quality development,China needs to create new working conditions for workers to improve the quality of their work."Working conditions"refers to the kind of working climate and state that people perceive in their organizations,a perception will have an important impact on their organizational *** the working conditions of an organization is actually a social process of organizational *** observing organizational working conditions from a governance perspective,it is necessary to take into consideration"embeddedness"as a structural background and the work unit(danwei)as an institutional *** is imperative to emphasize both organizational order and the subjective perceptions of *** also essential to analyze the organization’s social solidarity,its contlicts and integration and its protections and inclusion,the participation of its members,their interaction and the structure of their roles,and the organization’s structure and *** analytical framework provides a more comprehensive picture of organizational governance,which in turn reflects the organization’s working conditions and provides insights into overall research and dialogue in the disciplinary field of working conditions.

关键词： order of organizational governance subjective perception embeddedness work unit

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长时效期bh钢的烘烤硬化性能及其机理研究

武汉科技大学学报 2024年第4期47卷 247-253页

作者：宋青王立辉潘应君黄峰张彩东董伊康武汉科技大学材料学部湖北武汉430081 河钢材料技术研究院河北石家庄050023

采用万能材料试验机、TEM/EDS、3DAP,分别对时效3个月和6个月的超低碳烘烤硬化钢(钢号HC180B)进行力学性能测试和组织、析出相表征,并分析了烘烤硬化过程中的元素偏聚行为。结果表明,与时效3个月相比,钢板在时效6个月后仍具有优异的力... 详细信息

采用万能材料试验机、TEM/EDS、3DAP,分别对时效3个月和6个月的超低碳烘烤硬化钢(钢号HC180B)进行力学性能测试和组织、析出相表征,并分析了烘烤硬化过程中的元素偏聚行为。结果表明,与时效3个月相比,钢板在时效6个月后仍具有优异的力学性能,展示出良好的抗时效性。TEM和3DAP分析显示,退火冷轧板中仅有C原子在晶界处轻微偏聚,B、Mn、Nb、Ti均匀分布在钢中;2%预拉伸变形后,这些元素在相同晶界处表现出不同程度的偏聚现象,TiN多呈矩形优先在晶界大量析出,NbC则少量析出;进一步烘烤后,C、B、Mn、Nb、Ti在晶界处的偏聚现象更为显著且连续,NbC呈椭球形大量析出。析出相与位错、晶界的交互作用显著提升了钢板的烘烤硬化性能。

关键词：烘烤硬化钢时效原子空间分布析出相晶界偏聚

白及多糖在小鼠烟曲霉菌性角膜炎中的抗炎作用

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青岛大学学报（医学版） 2024年第1期60卷 28-32页

作者：张冉冉彭旭东赵桂秋青岛大学附属医院眼科山东青岛266003

目的研究白及多糖(BSP)在小鼠烟曲霉菌性角膜炎中的抗炎机制,探讨BSP对真菌性角膜炎的治疗作用。方法建立小鼠烟曲霉菌性角膜炎模型,使用BSP水溶液局部滴眼处理,裂隙灯下观察感染后第1、3、5天小鼠角膜的炎症程度,反转录-聚合酶链反应... 详细信息

目的研究白及多糖(BSP)在小鼠烟曲霉菌性角膜炎中的抗炎机制,探讨BSP对真菌性角膜炎的治疗作用。方法建立小鼠烟曲霉菌性角膜炎模型,使用BSP水溶液局部滴眼处理,裂隙灯下观察感染后第1、3、5天小鼠角膜的炎症程度,反转录-聚合酶链反应法检测小鼠角膜中炎症因子和模式识别受体Dectin-1的mRNA水平,酶联免疫吸附试验和蛋白免疫印迹法检测炎症因子和Dectin-1蛋白的表达。结果BSP处理的小鼠角膜炎症评分在感染后第3、5天明显低于对照组(F=6.64、11.58,P<0.05)。16 g/L的BSP水溶液可以降低小鼠角膜中炎症因子白细胞介素1β、白细胞介素6、肿瘤坏死因子α以及模式识别受体Dectin-1的mRNA和蛋白表达水平,差异均具有统计学意义(F=2.21~97.39,P<0.05)。结论BSP通过下调炎症因子水平和抑制模式识别受体Dectin-1的表达在小鼠烟曲霉菌性角膜炎中发挥抗炎作用。

关键词：白及多糖烟曲霉菌角膜炎炎症小鼠

Occurrence of Different Forms and Implications of Compound Specific Sterols in Continental Sediments of the Northeast South China Sea

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Acta Geologica Sinica(English Edition) 2019年第2期93卷 420-429页

作者： QIU Hong ZOU Li zhang Minsheng ZHU Chaoqi JIA Yonggang College of Environmental Science and Engineering Ocean University of China Education Key Laboratory fo r Marine Environment and Ecology Ocean University of China The Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering Ocean University of China

The South China Sea(SCS) is one of the most productive and accumulative marginal shelves of organic carbon in the world. To expound the transformation and preservation of organic carbon in the Northeast SCS, where abundant oil and gas resources have been reported, compound specific sterols in free(FR), base hydrolytic(bh), and acid hydrolytic(AH) forms were analyzed in surface and columnar sediments in May, 2016. The results showed that the total contents of sterols detected ranged from 0.15 to 3.74 ppm dry weight in the surface sediments, and gradually decreased from 3.41 to0.17 ppm dry weight from surface to deep sediments, in which cholesterol(27^(△5)) was the most abundant component. Sterols mainly existed in the bh form(54.51%-74.20%), followed by the FR form(25.50%-45.49%) and then the AH form(0-3.77%) in turn, in the surface sediments. bh and FR sterols accounted for 0-49.08% and 50.92%-100% in the columnar sediments, while AH sterols were undetectable. The contents of specific sterols indicated that, the primary source of marine organic carbon was about 5 times as much as that from terrestrial input. More and more FR sterols transformed into bh sterols with increasing sedimentary depth, and bh sterols absolutely dominated in sediment depths under 25 cm. The forms of Sterols C27 were maintained at a relative consistence state, but Sterols C28 to C30 degraded gradually during the sedimentation process. It was suggested that the stability of sterols, based on the chemical structures, might be the primary factor controlling their degradation and preservation in deeper sediments. These results would help to understand the organic carbon(OC) transformation in a hydrate formation area in a marginal sea.

关键词： sterols sediments occurrence forms transformation northeast South China Sea

Crystallization behavior in severely cold-drawn Ti_(50) Ni_(47) Fe_3 wire

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Rare Metals 2014年第3期33卷 258-262页

作者： Xin-Quan zhang Hui-Fang Geng Fu-Shun Liu Wen Ma The Integrated Standard and Material Application Research Department AVIC The First Aircraft Institute School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Division of Science and Technology Information General Research Institute for Nonferrous Metals

The microstructures and crystallization behavior of Ti-47 at% Ni-3 at% Fe shape memory alloy wire under the condition of severe cold drawing at room temperature and different post-deformation annealing processes were intensively investigated using transmission electron microscope（TEM） and differential scanning calorimetry（DSC）. It is indicated that the amorphous phase is dominant in the Ti50Ni47Fe3 wire after the cold drawing of 78 % areal reduction. The critical temperature for recrystalization is determined at about 300 °C. The average grain size grows from 7 up to 125 nm when annealing temperature rises from300 to 500 °C. Post-deformation annealing process exerts significant influence on the crystallization temperature which climbs up with the increase of annealing temperature.

关键词： TisoNi47Fe3 wire Cold drawing Annealing Amorphous Crystallization

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中医外治法治疗颈源性高血压的系统评价

中西医结合心脑血管病杂志 2024年第14期22卷 2505-2513页

作者：马勇博滑振王靖涵张磊山东中医药大学济南250011 山东中医药大学附属医院济南250011

目的:系统评价中医外治法治疗颈源性高血压的临床疗效。方法:检索中国知网(CNKI)、重庆维普(VIP)、万方数据库、PubMed、EMbase、the Cochrane Library数据库中有关中医外治法治疗颈源性高血压的随机对照试验,检索时限从建库至2022年11... 详细信息

目的:系统评价中医外治法治疗颈源性高血压的临床疗效。方法:检索中国知网(CNKI)、重庆维普(VIP)、万方数据库、PubMed、EMbase、the Cochrane Library数据库中有关中医外治法治疗颈源性高血压的随机对照试验,检索时限从建库至2022年11月10日。由两名研究员独立筛选文献、提取资料并进行偏倚风险分析;对纳入的文献采用RevMan 5.4软件进行Meta分析。结果:共纳入20篇文献,涉及1466例病人,其中观察组734例,对照组732例。Meta分析结果显示,与对照组比较,观察组收缩压[MD=-11.03,95%CI(-14.42,-7.63),P<0.00001]、舒张压[MD=-7.42,95%CI(-8.80,-6.03),P<0.00001]、颈椎功能障碍指数(NDI)评分[MD=-6.26,95%CI(-10.81,-1.72),P=0.007]、疼痛视觉模拟量表(VAS)评分[MD=-2.60,95%CI(-3.48,-1.73),P<0.00001]降低,降压疗效[MD=1.24,95%CI(1.11,1.39),P=0.0001]提高,中医症状[MD=-3.75,95%CI(-5.33,-2.16),P<0.00001]改善,差异均有统计学意义。结论:现有证据表明,中医外治法治疗颈源性高血压是安全有效的,可改善病人血压和相关临床症状,受限于研究质量与数量,仍需大样本、高质量的研究进一步评价验证。

关键词：颈源性高血压中医外治法随机对照试验系统评价循证医学

糖尿病足溃疡患者合并周围动脉病变和感染:不止双重打击

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中华糖尿病杂志 2024年第2期16卷 202-206页

作者： Nicolaas C.Schaper 范国洽何亚非刘赞朝许樟荣张莉莉马斯特里赫特大学医院内分泌科马斯特里赫特6212 BH 石家庄市第二医院内分泌科石家庄050051 石家庄市第二医院、河北省糖尿病基础医学研究重点实验室石家庄050051 战略支援部队特色医学中心糖尿病中心内分泌科北京100094

糖尿病足溃疡(DFU)是糖尿病严重并发症之一,具有高致残率、高病死率、高患病率的特点。DFU易合并感染,部分DFU患者感染症状不明显,造成延误治疗,截肢风险升高,高达50%的DFU患者合并周围动脉病变(PAD),PAD造成动脉管腔狭窄、闭塞,导致溃... 详细信息

糖尿病足溃疡(DFU)是糖尿病严重并发症之一,具有高致残率、高病死率、高患病率的特点。DFU易合并感染,部分DFU患者感染症状不明显,造成延误治疗,截肢风险升高,高达50%的DFU患者合并周围动脉病变(PAD),PAD造成动脉管腔狭窄、闭塞,导致溃疡愈合不良,DFU患者同时伴有PAD及感染时截肢、死亡风险明显升高。本文重点介绍DFU患者合并PAD及感染的临床特点及感染细菌谱、抗生素耐药情况,如何规范诊治此类患者,改善糖尿病足溃疡感染合并PAD的预后,以期降低DFU患者的截肢率,提高患者生活质量。

关键词：糖尿病足足溃疡感染周围动脉病变国际糖尿病足工作组

谷胱甘肽还蛋白1、谷胱甘肽还蛋白2、硫氧还蛋白1和硫氧还蛋白过氧化物酶3在中华蜜蜂抗氧化防御中起重要作用（英文）

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谷胱甘肽还蛋白1、谷胱甘肽还蛋白2、硫氧还蛋白1和硫氧还蛋白过...

Y_(2)O_(3)-functionalized graphene-immobilized Ni–Pt nanoparticles for enhanced hydrous hydrazine and hydrazine borane dehydrogenation

作者： Yao PB Chen XB Yan Y Liu F zhang YY Guo XQ Xu bh

谷氧还蛋白（Grxs）、硫氧还蛋白（Trxs）和作为生物体内重要的抗氧化酶,在维持氧化还原平衡和保护机体免受ROS损伤方面发挥着至关重要的作用。目前关于Tpxs、Trxs和Grxs基因的研究主要在哺乳动物、果蝇等模式物种,中华蜜蜂（Apis ceran... 详细信息

谷氧还蛋白（Grxs）、硫氧还蛋白（Trxs）和作为生物体内重要的抗氧化酶,在维持氧化还原平衡和保护机体免受ROS损伤方面发挥着至关重要的作用。目前关于Tpxs、Trxs和Grxs基因的研究主要在哺乳动物、果蝇等模式物种,中华蜜蜂（Apis cerana cerana）中关于此类基因的研究很少。本研究从中华蜜蜂中分离得到AccGrx1、AccGrx2和AccTrx1,并研究了他们抗氧化作用,发现AccGrx1和AccGrx2主要在黑眼蛹期表达,AccTrx1则在羽化出房后15天表达量最高。AccGrx1和AccTrx1在脂肪体和表皮组织表达量最高,AccGrx2在肌肉中高表达,表皮次之。AccGrx1、AccGrx2和AccTrx1受到4℃、16℃、42℃、H2O2和杀虫剂（杀螨剂、百草枯、高效氯氟氰菊酯和辛硫磷）等刺激或处理后会上调表达,而紫外线处理会抑制表达;HgCl2处理会刺激AccGrx1和AccGrx2的表达而抑制AccTrx1。AccGrx1、AccGrx2、AccTpx-3、和AccTrx1基因敲除表明,CAT和POD酶活性、过氧化氢、醛酮类和抗坏血酸盐等代谢产物、GSH/GSSG和NADP+/NADPH有所提高。此外,我们还研究了其他抗氧化基因的表达量,发现它们各有上调和下调表达,表明上调表达的基因可能弥补了AccGrx1、AccGrx2、AccTpx-3、和AccTrx1基因敲除所带来的影响。总之,AccGrx1、AccGrx2、AccTpx-3、和AccTrx1可能在抗氧化应激中起到关键作用。

关键词： Apis cerana cerana RNA interference qRT-PCR Oxidative stress Antioxidant enzyme Free radicals

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Rare Metals 2023年第10期42卷 3410-3419页

作者： Qi-Lu Yao Meng He Ya-Ru Kong Tian Gui zhang-Hui Lu State-Province Joint Engineering Laboratory of Zeolite Membrane Materials Institute of Advanced Materials(IAM)Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of EducationKey Laboratory of Energy Catalysis and Conversion of NanchangJiangxi Normal UniversityNanchang330022China

Developing efficient and highly selective catalyst to promote hydrogen generation from hydrous hydrazine(N_(2)H_(4)·H_(2)O) and hydrazine borane(N_(2)H_(4)bh_(3))remains a challenging issue for fuel cell-based hydrogen *** this work,ultrafine and well-dispersed bimetallic NiPt nanoparticles(3.4 nm) were successfully immobilized on Y_(2)O_(3)-functionalized graphene(Y_(2)O_(3)/rGO) without any surfactant by a simple liquid impregnation *** is firstly found that integration of graphene and Y_(2)O_(3) not only can facilitate the formation of ultrafine NiPt nanoparticles(NPs),but also can effectively modulate the electronic structure of NiPt NPs,thereby boosting the catalytic *** with NiPt/Y_(2)O_(3) and NiPt/rGO,the NiPt/Y_(2)O_(3)/rGO nanocomposites(NCs) show remarkable enhanced catalytic efficiency for hydrogen production from N_(2)H_(4)-H_(2)*** particular,the optimized Ni_(0.6)Pt_(0.4/)Y_(2)O_(3)/rGO NCs display the best catalytic efficiency and 100% H_(2) selectivity for N_(2)H_(4)-H_(2)O dehydrogenation,providing a turnover frequency(TOF) of2182 h^(-1) at 323 K,which is among the highest values ever ***,the Ni_(0.6)Pt_(0.4)/Y_(2)O_(3)/rGO NCs also exhibit an excellent catalytic performance(TOF=3191 h^(-1)) and 100% H_(2) selectively for N_(2)H_(4)bh_(3)dehydrogenation at 323 *** outstanding catalytic results obtained provide more possibilities for the potential applications of N_(2)H_(4)·H_(2)O and N_(2)H_(4)bh_(3) as promising chemical hydrogen storage materials.

关键词： Hydrous hydrazine(N_(2)H_(4)·H_(2)O) Hydrazine borane(N_(2)H_(4)bh_(3)) Dehydrogenation Graphene Catalysis