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Nano Research 2022年第1期15卷 304-309页

作者： Longcheng Zhang Jie Liang Luchao Yue Zhaoquan Xu Kai Dong Qian Liu Yonglan Luo Tingshuai Li Xiaohong Cheng Guanwei Cui Bo Tang Abdulmohsen Ali Alshehri Khalid Ahmed Alzahrani xiaodong guo Xuping Sun School of Chemical Engineering Sichuan UniversityChengdu 610065China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and ScienceXiangyang 441053China College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014China Chemistry Department Faculty of Science&Center of Excellence for Advanced Materials ResearchKing Abdulaziz UniversityP.O.Box 80203Jeddah21589Saudi Arabia

Electrocatalytic oxygen reduction reaction(ORR)provides an attractive alternative to anthraquinone process for H_(2)O_(2) *** design of earth-abundant electrocatalysts for H_(2)O_(2) synthesis via a two-electron ORR process in acids is attractive but still:very *** this work,we report that nitrogen-doped carbon nanotubes as a multi-functional support for CoSe2 nanoparticles not only keep CoSe_(2) nanoparticles well dispersed but alter the crystal structure,which in turn improves the overall catalYtic behaviors and thereby renders high O_(2)-to-H_(2)O_(2) conversion *** 0.1 M HClO_(4),such CoSe_(2)@NCNTs hybrid delivers a high H_(2)O_(2) selectivity of 93.2% and a large H_(2)0_(2) yield rate of 172 ppm·h^(-1) with excellent durability up to 24 ***,CoSe_(2)@NCNTs performs effectively for organic dye degradation via electro-Fenton process.

关键词： cobalt selenide nitrogen-doped carbon nanotube electrocatalysis two-electron oxygen reduction reaction hydrogen peroxide

BIODEGRADATION AND MECHANICAL PROPERTIES OF HYDROXYAPATITE/POLY-DL-LACTIDE COMPOSITES FOR FRACTURE FIXATION

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Journal of Wuhan University of Technology(Materials Science) 1998年第4期13卷 9-15页

作者：郭晓东 Xiehe Hospital Tongji Medical University China Department of Orthopaedics Xiehe Hospital Tongji Medical University Wuhan 430022 China Wuhan University of Technology China

The biodegradation and mechanical properties of self-designed hydroxyapatite/poly-DL-lactide (HA/PDLLA) composites were investigated in vitro and in vivo. In vitro, the specimens of HA/PDLLA and unfilled PDLLA with similar molecular weights were immersed in phosphate-buffered saline. Ageing of the various devices were monitored by measuring molecular weight, water absorption, weight loss, PH, mechanical strengths and microstructural changes. The follow-up times were 2, 4, 6, 8, 10 and 12 weeks. In vivo, a transverse transcondylar osteotomy of the distal femur was fixed with a HA/PDLLA rod (diameter, 4.5 mm; length, 30 to approximately 40 mm). The follow-up times were 3, 6 and 12 weeks. Roentgenographic, histologic, and biomechanical studies were carried out. The results show that the HA/PDLLA composites have higher mechanical strength and slower degradation than that of the unfilled PDLLA and that of all osteotomies unite within six weeks without delay. Consequently, the HA/PDLLA composites possess sufficient mechanical strength for the fixation of cancellous osteotomies. (Author abstract) 5 Refs.

关键词： absorbable material hydroxyapatite poly-DL-lactide mechanical strength biodegradation

《民法典》第1000条(侵害人格权民事责任)诉讼评注

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法学杂志 2023年第3期44卷 33-48页

作者：郭小冬天津大学法学院天津300072

诉讼请求、诉讼标的、判决主文与实体请求权相关,是实体请求权在诉讼程序中的转化呈现。但此相关性在我国诉讼实践中未能得到充分的体现。赔礼道歉的不可替代性和不可执行性使其成为《民法典》第1000条诉讼落实的障碍。法官可以借助比... 详细信息

诉讼请求、诉讼标的、判决主文与实体请求权相关,是实体请求权在诉讼程序中的转化呈现。但此相关性在我国诉讼实践中未能得到充分的体现。赔礼道歉的不可替代性和不可执行性使其成为《民法典》第1000条诉讼落实的障碍。法官可以借助比例原则来判定被告应承担的民事责任。赔礼道歉应当被鼓励,但不应该也无法被强制。当被告抗拒赔礼道歉时,消除影响、恢复名誉并辅以精神抚慰金比赔礼道歉更符合第1款的“相当”性要求。第2款规定的公告或公布判决书以消除影响、恢复名誉属于替代执行。是否采用此种措施应由法院的执行机构依照比例原则决定,并要充分尊重权利人的程序选择权。立法机关应当重新审视赔礼道歉作为人格权请求权内容和民事责任的必要性与可行性。

关键词：诉讼请求判决主文赔礼道歉比例原则执行措施

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公民道德建设的法制安排及其场域

中共天津市委党校学报 2018年第4期20卷 81-86页

作者：郭小冬天津师范大学法学院

既有的研究成果对道德立法的结论呈现两个极端:要么坚持"法律不能干涉道德事务",反对道德立法;要么坚持"一切问题都可以归结为法律问题",坚决拥护道德立法。道德立法是必须且必要的,但并非所有的道德规范都可以或有必要成为法律规范。... 详细信息

既有的研究成果对道德立法的结论呈现两个极端:要么坚持"法律不能干涉道德事务",反对道德立法;要么坚持"一切问题都可以归结为法律问题",坚决拥护道德立法。道德立法是必须且必要的,但并非所有的道德规范都可以或有必要成为法律规范。道德规范本身具有层次性。只有那些在性质上与法律规范具有同质性的道德规范才能够被法律确认和吸收。道德立法的场域应当限定在社会公德、家庭伦理道德与职业道德领域。

关键词：道德立法义务道德公共道德

不同方法制备小肠黏膜下层脱细胞基质材料的对比研究

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中华实验外科杂志 2024年第8期41卷 1789-1793页

作者：姬彦辉燕淼恒苏会芳陈松峰毛克亚郭晓东刘宏建郑州大学第一附属医院骨科医学部郑州450002 解放军总医院第一医学中心骨科医学部北京100039 华中科技大学同济医学院附属协和医院骨科武汉430022

目的采用目前文献报道的3种制备小肠黏膜下层(SIS)的方法制备SIS, 并比较3种制备方法对SIS的脱细胞程度、结构、活性成分和生物相容性的影响。方法采用Badylak法、Abraham法和Luo法制备SIS。使用苏木精-伊红(HE)和4’, 6-二脒基-2-苯基... 详细信息

目的采用目前文献报道的3种制备小肠黏膜下层(SIS)的方法制备SIS, 并比较3种制备方法对SIS的脱细胞程度、结构、活性成分和生物相容性的影响。方法采用Badylak法、Abraham法和Luo法制备SIS。使用苏木精-伊红(HE)和4’, 6-二脒基-2-苯基吲哚(DAPI)染色及DNA含量检测其脱细胞是否完全、残余DNA量;蛋白组学检测其组成成分;扫描电镜检测其结构变化;并将3种SIS与骨髓间充质干细胞(BMSCs)共培养检测其细胞相容性。采用方差分析比较组间差异。结果 3种方法制备的SIS的HE和DAPI染色均未无肉眼可见的细胞核;Badylak法、Abraham法和Luo法制备的SIS中DNA含量检测分别为43.25、21.01 ng/mg和15.69 ng/mg ECM干重。蛋白组学分析结果:SIS-1、SIS-2和SIS-3中检测出的蛋白种类分别为644、717和135种。胶原蛋白的种类最多, 共有21个亚型, Ⅰ型胶原含量最大, 还含有纤维粘连蛋白(fibronectin)、蛋白多糖、血管内皮生长因子(VEGF)、成纤维细胞生长因子(FGF)、转化生长因子-β(TGF-β)和骨形态发生蛋白-2(BMP-2)。扫描电子显微镜显示3种SIS微观结构均有一定程度破坏, 表现为胶原纤维连续性中断与胶原纤维排列紊乱;与BMSCs共培养, 细胞能保持良好的形态和增殖活性。结论 3种脱细胞方法制备的SIS均达到标准, 具有良好的生物相容性, 并保留大部分活性成分。微观结构和生物活性成分都会受到不同程度的损伤。

关键词：小肠黏膜下层脱细胞基质

Magnesium-based materials in orthopaedics:material properties and animal models

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Biomaterials Translational 2021年第3期2卷 197-213页

作者： Xirui Jing Qiuyue Ding Qinxue Wu Weijie Su Keda Yu Yanlin Su Bing Ye Qing Gao Tingfang Sun xiaodong guo Department of Orthopaedics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina Department of Clinical Medicine Hubei Enshi CollegeEnshiHubei ProvinceChina

As a new generation of medical metal materials,degradable magnesium-based materials have excellent mechanical properties and osteogenic promoting ability,making them promising materials for the treatment of refractory bone *** models can be used to understand and evaluate the performance of materials in complex physiological environments,providing relevant data for preclinical evaluation of implants and laying the foundation for subsequent clinical *** date,many researchers have studied the biocompatibility,degradability and osteogenesis of magnesium-based materials,but there is a lack of review regarding the effects of magnesium-based materials in *** view of the growing interest in these materials,this review briefly describes the properties of magnesium-based materials and focuses on the safety and efficacy of magnesium-based materials in *** animal models including rats,rabbits,dogs and pigs are covered to better understand and evaluate the progress and future of magnesium-based *** literature analysis reveals that the magnesium-based materials have good biocompatibility and osteogenic activity,thus causing no adverse reaction around the implants in vivo,and that they exhibit a beneficial effect in the process of bone *** addition,the degradation rate in vivo can also be improved by means of alloying and *** encouraging results show a promising future for the use of magnesium-based materials in musculoskeletal disorders.

关键词： animal models bone regeneration magnesium magnesium alloy tissue engineering

Deciphering the degradation discrepancy in Ni-rich cathodes with a diverse proportion of[003]crystallographic textures

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Carbon Energy 2023年第7期5卷 15-26页

作者： Lang Qiu Mengke Zhang Yang Song Zhenguo Wu Yan-Fang Zhu Jun Zhang Dong Wang Hai-Yan Hu Hong-Wei Li Hang-Rui Liu Xin-Bei Jia Jian Peng Shuangqiang Chen Zuguang Yang Yao Xiao xiaodong guo Department of Chemical Engineering College of Chemical EngineeringSichuan UniversityChengduChina Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiangChina Ruyuan Dongyang Guangcixing Material Limited CompanyShaoguanGuangdongChina Department of Chemical Engineering School of Environmental and Chemical EngineeringShanghai UniversityShanghaiChina Department of Aerospace Engineering College of Aerospace EngineeringChongqing UniversityChongqingChina State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringXi'an Jiaotong UniversityXi'anShaanxiChina

The crystal plane plays a very important role in the properties of Ni-rich cathodes.[003]crystallographic texture regulation has been proven to improve structural stability,and yet,the discrepancy of particles with different exposed ratios of[003]in structural attenuation has not been ***,we have unraveled comprehensively the structural decay difference for Ni-rich cathodes’primary particles with the different percentages of exposed[003]by regulating the precursor coprecipitation *** findings based on structural characterization,first-principles calculations,finite element analysis,and electrochemical test reveal that the length and width of particles represent[110]and[003]directions,respectively,and show that cathode particles with a higher[110]/[003]ratio can effectively inhibit structure degradation and intergranular/intragranular crack formation owing to the low oxygen vacancy formation energy on(003)planes and the small local stress on secondary/primary *** study may provide guidance for the structural design of layered cathodes.

关键词： cracks crystal plane Ni-rich cathodes oxygen vacancy structure degradation

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谢望新的1980年代

南方文坛 2008年第1期 65-67页

作者：郭小东广东技术师范学院教授

写下这个题目，已经是二十一世纪的第七个年头了。离1980年代那激情的岁月已经有十七个年头了。十七年，整整一代人!而在我记忆里，我所认识的谢望新是1980年代的评论家谢望新。一个人的青年时代，如果有幸和一个伟大的年代结缘，将不... 详细信息

写下这个题目，已经是二十一世纪的第七个年头了。离1980年代那激情的岁月已经有十七个年头了。十七年，整整一代人!而在我记忆里，我所认识的谢望新是1980年代的评论家谢望新。一个人的青年时代，如果有幸和一个伟大的年代结缘，将不枉此生，不管后来发生了什么变化。

关键词： 80年代青年时代评论家谢望新

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企业所得税收入概念研究

当代经济研究 2011年第2期 76-79页

作者：郭小东吉林财经大学财税学院长春130117

我国《企业所得税法》关于企业收入来源的规定没有解决什么是收入的问题。我国企业所得税收入的范围,应该包括除股本及投资者投入资本外的所有导致所有者权益增加的经济利益流入。我国企业所得税收入的概念应界定为:收入是指企业在一个... 详细信息

我国《企业所得税法》关于企业收入来源的规定没有解决什么是收入的问题。我国企业所得税收入的范围,应该包括除股本及投资者投入资本外的所有导致所有者权益增加的经济利益流入。我国企业所得税收入的概念应界定为:收入是指企业在一个财政年度内,导致权益增加的经济利益流入,或流出的节省,表现为企业资产的增加,或负债的减少,以及税法规定的视同销售项目。

关键词：企业所得税收入所有者权益会计准则

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税务会计模式的国际比较

涉外税务 2007年第3期 68-71页

作者：郭小东长春税务学院税务系吉林长春130122

税款的会计处理不是税务会计。根据不同的标准,世界各国的会计模式可以有不同的分类。而根据税法对会计的导向作用不同,税务会计的模式可分为统一模式和独立模式。我国税制改革与会计改革的不断推进,使两者的目标和原则出现差异,建立适... 详细信息

税款的会计处理不是税务会计。根据不同的标准,世界各国的会计模式可以有不同的分类。而根据税法对会计的导向作用不同,税务会计的模式可分为统一模式和独立模式。我国税制改革与会计改革的不断推进,使两者的目标和原则出现差异,建立适合我国国情的税务会计理论体系,已经成为现代税收制度(特别是企业所得税)应对差异、不断发展与完善的必然选择。

关键词：税务会计模式国际比较会计制度改革会计处理企业所得税计划经济体制财务制度账务处理方法