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国民素描与国际叙事:社交媒体中外籍网红的他者视角研究

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传媒观察 2024年第6期 92-101页

作者：彭华新李海敏深圳大学传播学院广东深圳518060

历史上中国人形象一般由游历者、记者、导演等传播者进行“他塑”,文学、新闻、电影等传统媒介成为“他塑”的传播形态。社交媒体出现后,一种较为新颖且具独特影响力的传播形态开始出现,即微博、抖音、西瓜视频上拥有巨大粉丝量的外籍网... 详细信息

历史上中国人形象一般由游历者、记者、导演等传播者进行“他塑”,文学、新闻、电影等传统媒介成为“他塑”的传播形态。社交媒体出现后,一种较为新颖且具独特影响力的传播形态开始出现,即微博、抖音、西瓜视频上拥有巨大粉丝量的外籍网红,这一群体通过分享在中国的日常生活和文化体验,成为以“他者”视角传播中国人形象的新兴力量。在叙事过程中,外籍网红创新使用采访对话、实拍记录、剧情演绎的形式策略,灵活运用语言符号、非语言符号,客观、真实、生动呈现了中国人的多元形象。由此反思中国的国际叙事,亦可通过借用他者视角来创新叙事模式、呈现立体中国、寻求文化共性、降低文化折扣。

关键词：社交媒体洋网红中国人形象国际叙事

Defect passivation strategy for inorganic CsPbI2Br perovskite solar cell with a high-efficiency of 16.77%

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Journal of Materials Science & Technology 2021年第23期82卷 40-46页

作者： Hua Zhang Jia Zhuang Xingchong liu Zhu Ma Heng Guo Ronghong Zheng Shuangshuang Zhao Fu Zhang Zheng Xiao Hanyu Wang haimin li School of New Energy and Materials Southwest Petroleum UniversityChengdu610500China Institute of Photovoltaic Southwest Petroleum UniversityChengdu610500China

All-inorganic halide perovskite solar cells(PSCs)have acquired great progress,especially CsPbI2Br.However,their photoelectric conversion efficiency(PCE)remains far below the theoretical predictions.Non-radiative recombination is one of the important issues affecting the photoelectric performance of the PSCs,and the defective lead ions derived from the evaporation of halide ions in the inorganic perovskite are the principal non-radiative recombination centers.Herein,the non-radiative recombination is effectively suppressed by introducing the N-methyl-2-pyrrolidone(NMP)as a Lewis base molecule to passivate the defective lead ions.Therefore,by adjusting the dosage of NMP,the smooth and pinhole-free CsPbI_(2)Br perovskite film is obtained and the optimized device exhibits a champion PCE of 16.77%with an excellent fill factor(FF)of 0.80.This work proves the effectiveness of passivation using Lewis base molecules to prevent non-radiative recombination defects in inorganic perovskite.

关键词： All-inorganic perovskite CsPbI2Br Defect passivation Pb-O bond High PCE

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一例进口含铜物料固体废物属性鉴别探讨

物理测试 2024年第1期42卷 58-62页

作者：查燕青潘生林蒋一昕张秀封亚辉李海敏南京海关工业产品检测中心江苏南京210019 南京金检检验有限公司江苏南京210019

近年来,以铜精矿名义走私进口含铜废料的情况时有发生。传统的检测方法对于鉴别此类物料有一定的局限性。基于X射线衍射光谱(XRD)、X射线荧光光谱(XRF)、超景深显微镜以及扫描电镜等技术,针对一批申报品名为“铜精矿”的物料进行固体废... 详细信息

近年来,以铜精矿名义走私进口含铜废料的情况时有发生。传统的检测方法对于鉴别此类物料有一定的局限性。基于X射线衍射光谱(XRD)、X射线荧光光谱(XRF)、超景深显微镜以及扫描电镜等技术,针对一批申报品名为“铜精矿”的物料进行固体废物属性鉴别,从而确定样品来源,为海关监管和资源利用提供了科学依据。

关键词：含铜物料铜精矿属性表征固体废物

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老年人跌倒恐惧体验质性研究的Meta整合

中华现代护理杂志 2024年第15期30卷 1970-1977页

作者：祁艳焕陈赟袁竺方黎海敏李国敏钟印芹洒文娟广州中医药大学深圳医院(福田)护理部深圳518034 广州中医药大学深圳医院(福田)院办深圳518034 广州中医药大学深圳医院(福田)内分泌科深圳518034

目的系统评价老年人跌倒恐惧体验的质性研究,为护理实践提供理论依据。方法系统检索PubMed、Web of Science、Embase、Cochrane library、中国知网、万方数据库、维普网、中国生物医学文献数据库中关于老年人跌倒恐惧体验的质性研究,检... 详细信息

目的系统评价老年人跌倒恐惧体验的质性研究,为护理实践提供理论依据。方法系统检索PubMed、Web of Science、Embase、Cochrane library、中国知网、万方数据库、维普网、中国生物医学文献数据库中关于老年人跌倒恐惧体验的质性研究,检索时限为建库至2023年11月5日。采用澳大利亚乔安娜布里格斯研究所循证卫生保健中心质性研究质量评价标准评价文献质量,使用汇集性Meta整合方法进行资料整合。结果共纳入13篇文献,提取出44个主题,归纳为12个类别,提炼为4个整合结果,分别为对跌倒恐惧的感知、跌倒恐惧的影响因素、在态度及行为方面的应对策略、对康复护理的多维度需求。结论医护人员应关注和理解老年人的跌倒恐惧,多维度、动态地评估老年人的跌倒恐惧,基于应对行为方式给予跌倒恐惧老年人个性化指导,创建支持系统缓解老年人的跌倒恐惧并满足其多维度需求,提高老年人的生活质量。

关键词：老年人跌倒恐惧体验质性研究 Meta整合

Oxygen‑Coordinated Single Mn Sites for Efficient Electrocatalytic Nitrate Reduction to Ammonia

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Nano-Micro Letters 2024年第1期16卷 147-159页

作者： Shengbo Zhang Yuankang Zha Yixing Ye Ke li Yue lin lirong Zheng Guozhong Wang Yunxia Zhang Huajie Yin Tongfei Shi haimin Zhang Laboratory of Materials Physics Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Excellence in NanoscienceInstitute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031People’s Republic of China University of Science and Technology of China Hefei 230026People’s Republic of China Key Laboratory of Agricultural Sensors Ministry of AgricultureSchool of Information and ComputerAnhui Agricultural UniversityHefei 230026People’s Republic of China Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026People’s Republic of China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of Sciences19B Yuquan RoadBeijing 100049People’s Republic of China

Electrocatalytic nitrate reduction reaction has attracted increasing attention due to its goal of low carbon emission and environmental protection.Here,we report an efficient NitRR catalyst composed of single Mn sites with atomically dispersed oxygen(O)coordination on bacterial cellulose-converted graphitic carbon(Mn-O-C).Evidence of the atomically dispersed Mn-(O-C_(2))_(4)moieties embedding in the exposed basal plane of carbon surface is confirmed by X-ray absorption spectroscopy.As a result,the as-synthesized Mn-O-C catalyst exhibits superior NitRR activity with an NH_(3)yield rate(RNH_(3))of 1476.9±62.6μg h^(−1)cm^(−2)at−0.7 V(vs.reversible hydrogen electrode,RHE)and a faradaic efficiency(FE)of 89.0±3.8%at−0.5 V(vs.RHE)under ambient conditions.Further,when evaluated with a practical flow cell,Mn-O-C shows a high RNH_(3)of 3706.7±552.0μg h^(−1)cm^(−2)at a current density of 100 mA cm−2,2.5 times of that in the H cell.The in situ FT-IR and Raman spectroscopic studies combined with theoretical calculations indicate that the Mn-(O-C_(2))_(4)sites not only effectively inhibit the competitive hydrogen evolution reaction,but also greatly promote the adsorption and activation of nitrate(NO_(3)^(−)),thus boosting both the FE and selectivity of NH_(3)over Mn-(O-C_(2))_(4)sites.

关键词： Atomically dispersed Oxygen coordination Nitrate reduction reaction In situ spectroscopic studies Hydrogen evolution reaction

Heterostructure Cu_(3)P-Ni_(2)P/CP catalyst assembled membrane electrode for high-efficiency electrocatalytic nitrate to ammonia

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Nano Research 2024年第6期17卷 4872-4881页

作者： Meng Jin Jiafang liu Xian Zhang Shengbo Zhang Wenyi li Dianding Sun Yunxia Zhang Guozhong Wang haimin Zhang Laboratory of Materials Physics Centre for Environmental and Energy NanomaterialsAnhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Excellence in NanoscienceInstitute of Solid State PhysicsHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China Anhui Contango New Energy Technology Co. Ltd.Hefei 230031China

Electrochemical nitrate reduction reaction(NO_(3)RR)is a promising means for generating the energy carrier ammonia.Herein,we report the synthesis of heterostructure copper-nickel phosphide electrocatalysts via a simple vapor-phase hydrothermal method.The resultant catalysts were evaluated for electrocatalytic nitrate reduction to ammonia(NH_(3))in three-type electrochemical reactors.In detail,the regulation mechanism of the heterogeneous Cu_(3)P-Ni_(2)P/CP-x for NO_(3)RR performance was systematically studied through the H-type cell,rotating disk electrode setup,and membrane-electrode-assemblies(MEA)electrolyzer.As a result,the Cu_(3)P-Ni_(2)P/CP-0.5 displays the practicability in an MEA system with an anion exchange membrane,affording the largest ammonia yield rate(RNH_(3))of 1.9 mmol·h^(−1)·cm^(−2),exceeding most of the electrocatalytic nitrate reduction electrocatalysts reported to date.The theoretical calculations and in-situ spectroscopy characterizations uncover that the formed heterointerface in Cu_(3)P-Ni_(2)P/CP is beneficial for promoting nitrate adsorption,activation,and conversion to ammonia through the successive hydrodeoxygenation pathway.

关键词： electrocatalytic nitrate reduction to ammonia three-type reactors membrane-electrode-assemblies system operando ATR-IRRAS successive hydrodeoxygenation pathway

Guidelines for the diagnosis and treatment of acute pancreatitis in China (2021)

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Journal of Pancreatology 2021年第2期4卷 67-75页

作者： Fei li Shouwang Cai Feng Cao Rufu Chen Deliang Fu Chunlin Ge Chunyi Hao Jihui Hao Heguang Huang Zhixiang Jian Gang Jin Ang li haimin li Shengping li Weiqin li Yixiong li Tingbo liang Xubao liu Wenhui Lou Yi Miao Yiping Mou Chenghong Peng Renyi Qin Chenghao Shao Bei Sun Guang Tan Xiaodong Tian Huaizhi Wang Lei Wang Wei Wang Weilin Wang Junmin Wei Heshui Wu Wenming Wu Zheng Wu Changqing Yan Yinmo Yang Xiaoyu Yin Xianjun Yu Chunhui Yuan Taiping Zhang Yupei Zhao on behalf of the Chinese Pancreatic Surgery Association Department of General Surgery Xuanwu HospitalCapital Medical UniversityBeijing Department of Hepatobiliary and Pancreatic Surgery the First Medical CenterChinese PLA General HospitalBeijing Pancreatic Center Guangdong Provincial People’s HospitalGuangzhouGuangdong Province Department of Pancreatic Surgery Huashan HospitalFudan UniversityShanghai Department of Pancreatic and Biliary Surgery The First Affiliated Hospital of China Medical UniversityShenyangLiaoning Province Department of Hepatopancreatobiliary Surgery Peking University Cancer HospitalBeijing Department of Pancreatic Cancer Tianjin Medical University Cancer Institute and HospitalTianjin Department of General Surgery Fujian Medical University Union HospitalFuzhouFujian Province Department of General Surgery Guangdong Provincial People’s HospitalGuangzhouGuangdong Province Department of Hepatobiliary Pancreatic Surgery Changhai Hospital Affiliated to Navy Medical UniversityShanghai Department of Hepatobiliary Surgery Xijing HospitalFourth Military Medical UniversityXi’anShaanxi Province Department of Pancreatobiliary Surgery Sun Yat-sen University Cancer CenterGuangzhouGuangdong Province Department of General Surgery Jinling HospitalMedical School of Nanjing UniversityNanjingJiangsu Province Department of General Surgery Xiangya HospitalCentral South UniversityChangshaHunan Province Department of Hepatobiliary and Pancreatic Surgery the First Affiliated Hospital of Medical CollegeZhejiang UniversityHangzhouZhejiang Province Department of Pancreatic Surgery West China HospitalSichuan UniversityChengduSichuan Province Department of General Surgery Zhongshan HospitalFudan UniversityShanghai Pancreas Center The First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu Province Department of Gastrointestinal and Pancreatic Surgery Zhejiang Provincial People’s HospitalHangzhouZhejiang Province Department of General Surgery Pancreatic Disease CenterRuijin HospitalShanghai Jiao Tong University School of Med

Acute pancreatitis(AP)is a common acute abdominal condition of the digestive system.In recent years,treatment concepts,methods,and strategies for the diagnosis of AP have advanced,and this has played an important role in promoting the standardization of AP diagnosis and treatment and improving the treatment quality of AP patients.On the basis of previous guidelines and expert consensus,this guideline adopts an evidence-based,problem-based expression;synthesizes important clinical research data at home and abroad in the most recent 5 years;and forms 29 recommendations through multidisciplinary expert discussion,including diagnosis,treatment,and follow-up.It is expected to provide evidence support for the treatment of AP in the clinical setting in China.

关键词： Acute pancreatitis Diagnosis Follow-up Guideline Treatment

Guidelines for the diagnosis and treatment of pancreatic cancer in China (2021)

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Journal of Pancreatology 2021年第2期4卷 49-66页

作者： Yinmo Yang Xueli Bai Dapeng Bian Shouwang Cai Rufu Chen Feng Cao Menghua Dai Chihua Fang Deliang Fu Chunlin Ge Xiaochao Guo Chunyi Hao Jihui Hao Heguang Huang Zhixiang Jian Gang Jin Fei li haimin li Shengping li Weiqin li Yixiong li Hongzhen li Tingbo liang Xubao liu Wenhui Lou Yi Miao Yiping Mou Chenghong Peng Renyi Qin Chenghao Shao Bei Sun Guang Tan Xiaodong Tian Huaizhi Wang Lei Wang Wei Wang Weilin Wang Junmin Wei Heshui Wu Wenming Wu Zheng Wu Jingyong Xu Changqing Yan Xiaoyu Yin Xianjun Yu Chunhui Yuan Taiping Zhang Jixin Zhang Jun Zhou Yupei Zhao on behalf of the Chinese Pancreatic Surgery Association Department of General Surgery Peking University First HospitalBeijing Department of Hepatobiliary and Pancreatic Surgery the First Affiliated Hospital of Medical CollegeZhejiang UniversityHangzhouZhejiang Province Departments of Endoscopy Peking University First HospitalBeijing Institute of Hepatobiliary Surgery of PLA Chinese PLA General HospitalBeijing Department of Pancreatobiliary Surgery Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhouGuangdong Province Department of General Surgery Xuanwu HospitalCapital Medical UniversityBeijing Department of General Surgery Peking Union Medical College HospitalChinese Academy of Medical Science&Peking Union Medical CollegeBeijing Department of Hepatobiliary Surgery Zhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong Province Department of Pancreatic Surgery Huashan Hospital Fudan UniversityShanghai Department of General Surgery The First Affiliated Hospital of China Medical UniversityShenyangLiaoning Province Department of Imaging Peking University First HospitalBeijing Department of Hepato-Pancreato-Biliary Surgery Peking University Cancer Hospital&InstituteBeijing Department of Pancreatic Cancer Tianjin Medical University Cancer Institute and HospitalTianjin Department of General Surgery Fujian Medical University Union HospitalFuzhouFujian Province Department of General Surgery Guangdong Provincial People’s HospitalGuangzhouGuangdong Province Department of Hepatobiliary Pancreatic Surgery Changhai Hospital Affiliated to Navy Medical UniversityShanghai Department of Hepatobiliary Surgery Xijing HospitalFourth Military Medical UniversityXi’anShaanxi Province Department of Pancreatobiliary Surgery Sun Yat-sen University Cancer CenterGuangzhouGuangdong Province Department of General Surgery Jinling HospitalMedical School of Nanjing UniversityNanjingJiangsu Province Department of General Surgery Xiangya HospitalCentral South UniversityChangshaHunan Province Department of Radiation Oncology Peking University First H

The incidence of pancreatic cancer has been rising worldwide,and its clinical diagnosis and treatment remain a great challenge.To present the update and improvements in the clinical diagnosis and treatment of pancreatic cancer in recent years,Chinese Pancreatic Association,the Chinese Society of Surgery,Chinese Medical Association revised the Guidelines for the Diagnosis and Treatment of Pancreatic Cancer in China(2014)after reviewing evidence-based and problem-oriented literature published during 2015-2021,mainly focusing on highlight issues regarding diagnosis and surgical treatment of pancreatic cancer,conversion strategies for locally advanced pancreatic cancer,treatment of pancreatic cancer with oligo metastasis,adjuvant and neoadjuvant therapy,standardized processing of surgical specimens and evaluation of surgical margin status,systemic treatment for unresectable pancreatic cancer,genetic testing,as well as postoperative follow up of patients with pancreatic cancer.Forty recommendation items were finally proposed based on the above issues,and the quality of evidence and strength of recommendations were graded using the Grades of Recommendation,Assessment,Development,and Evaluation system.This guideline aims to standardize the clinical diagnosis and therapy,especially surgical treatment of pancreatic cancer in China,and further improve the prognosis of patients with pancreatic cancer.

关键词： Diagnosis Guideline Multidisciplinary team Pancreatic cancer Treatment

The current surgical treatment of pancreatic neuroendocrine neoplasms in China: a national wide cross-sectional study

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Journal of Pancreatology 2019年第2期2卷 35-42页

作者： Wenming Wu Gang Jin haimin li Yi Miao Chunyou Wang Tingbo liang Jinrui Ou Yongfu Zhao Chunhui Yuan Yixiong li Wenhui Lou Zheng Wu Renyi Qin Huaizhi Wang Jihui Hao Xianjun Yu Heguang Huang Guang Tan Xubao liu Kesen Xu Lei Wang Yinmo Yang Chunyi Hao Weilin Wang Kejian Guo Junmin Wei Yifan Wang Chenghong Peng Xuefeng Wang Shouwang Cai Jianxin Jiang Xinmin Wu Xiao Yu Fei li Yupei Zhao 无 Department of General Surgery Peking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijing 100730China Department of Pancreatic Surgery Shanghai Chang Hai Hospital Affiliated to The Second Military Medical UniversityShanghaiChina Department of Hepato-Biliary-Pancreatic Surgery Xijing Hospital Affiliated to the Fourth Military Medical UniversityXi’anChina Department of General Surgery Jiangsu Province HospitalThe First Affiliated Hospital to Nanjing Medical UniversityNanjingChina Department of General Surgery Union Hospital Affiliated to Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Department of Hepato-Biliary-Pancreatic Surgery The Second Affiliated HospitalZhejiang UniversityHangzhouChina Department of General Surgery Guangdong General HospitalGuangzhouChina Department of Hepato-Biliary-Pancreatic Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina Department of General Surgery Peking University Third HospitalBeijingChina Department of Pancreatic Surgery Xiangya Hospital Affiliated to Central South UniversityChangshaChina Department of Pancreatic Surgery Shanghai Zhongshan Hospital Affiliated to Fu Dan UniversityShanghaiChina Department of General Surgery The First Affiliated Hospital of Xi’an Jiao Tong UniversityXi’anChina Department of Pancreatic Surgery Tongji Hospital Affiliated to Tongji Medical CollegeHuazhong University of Science&TechnologyWuhanChina Institute of Hepatopancreatobiliary Surgery Chongqing General HospitalUniversity of Chinese Academy of SciencesChongqingChina Department of Pancreatic Surgery Tianjin Medical University Cancer Institute&HospitalTianjinChina Department of Pancreatic Surgery Shanghai Cancer Hospital Affiliated to Fu Dan UniversityShanghaiChina Department of General Surgery Fujian Medical University Union HospitalFuzhouChina Department of General Surgery The First Affiliated Hospital of Dalian Medical UniversityDalianChina Department

Objective:The aim of this study is to investigate the current status of the diagnosis and treatment of patients with pancreatic neuroendocrine neoplasms(pNENs)undergoing surgery in China.Methods:This is a multicenter cross-sectional study performed in China.Data from patients with pNENs undergoing surgery at 33 high-volume medical centers,where the number of pancreatectomies exceeds 20 cases per year,were collected and analyzed between March 1,2016 and February 28,2017.Results:In total,392 patients with pNENs were enrolled.The male to female ratio was 1.4.The majority of patients were aged between 40 and 70 years.65.6%of the patients had non-functional tumors.Among those with functional tumors,the percentages of insulinomas,gastrinomas,glucagonomas,and vasoactive intestinal peptide-secreting tumors were 94.8%,1.5%,2.2%,and 1.5%,respectively.Multidisciplinary team(MDT)discussion was conducted for 39.0%of the patients.Minimally invasive surgery was performed on 31.1%of the 392 patients.The incidence of grade B/C pancreatic fistula formation was 4.4%.A total of 89.0%of the surgeries achieved R0 resection,and 41.6%of the tumors were well differentiated.Lymph node metastasis was present in 8.9%of the patients.The percentages of patients with grades G1,G2,and G3 disease were 49.2%,45.7%,and 5.1%,respectively.Conclusion:This multicenter cross-sectional study systematically presents the current status of the diagnosis and treatment of patients with pNENs undergoing surgery in China.MDT consultation for pNENs has not been widely implemented in China.Although the incidence of surgical complications is relatively low,minimally invasive procedures should be further promoted.This study shows us how to improve the outcomes of these patients.

关键词： China Current status Pancreatic neuroendocrine neoplasms Pancreatic surgery