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Clinical efficacy of femtosecond laser-assisted phacoemulsification in diabetic cataract patients

World Journal of Clinical Cases 2024年第10期12卷 1733-1741页

作者： Yi-Fei Tang Zhi-hui duan Department of Glaucoma and Cataracts Han Yang Eyegood Ophthalmic HospitalWuhan 430056Hubei ProvinceChina

BACKGROUND Diabetic patients with cataracts encounter specific difficulties during cataract surgery due to alterations in microcirculation,blood supply,metabolism,and the *** phacoemulsification may not fully tackle these issues,especially in instances with substantial preoperative *** utilization of femtosecond laser-assisted phacoemulsification,in conjunction with Toric intraocular lens(IOL)implantation,offers a potentially more efficient *** research seeks to evaluate the efficacy and possible complications of this approach in diabetic cataract *** To investigate the clinical efficacy and complications of femtosecond laser-assisted phacoemulsification combined with Toric IOL implantation in diabetic cataract patients,comparing it with traditional phacoemulsification *** This retrospective study enrolled 120 patients with diabetes cataract from May 2019 to May *** patients were divided into two groups:the control group underwent traditional phacoemulsification and Toric IOL implantation,while the treatment group received Len Sx femtosecond laser-assisted *** measures included naked eye vision,astigmatism,high-level ocular phase difference detection,clinical efficacy,and *** There were no significant preoperative differences in astigmatism or naked eyesight between the two ***,postoperative improvements were observed in both groups,with the treatment group showing greater enhancements in naked eye vision and astigmatism six months after the ***-level corneal phase difference tests also indicated significant differences in favor of the treatment *** This study suggests that femtosecond laser-assisted phacoemulsification combined with Toric IOL implantation appears to be more effective in enhancing postoperative vision in diabetic cataract patients compared to traditional methods offering valuable insights for clinical practice.

关键词： Diabetic cataract Femtosecond laser-assisted phacoemulsification Toric intraocular lens implantation Naked vision

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Biopsy forceps are useful for measuring esophageal varices in vitro

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World Journal of Gastrointestinal Surgery 2024年第2期16卷 539-545页

作者： Zhi-hui duan Sheng-Yun Zhou Endoscopy Center Xingtai People’s HospitalXingtai 054000Hebei ProvinceChina

BACKGROUND To avoid acute variceal bleeding in cirrhosis,current guidelines recommend screening for high-risk esophageal varices(EVs)by determining variceal size and identifying red wale ***,visual measurements of EV during routine endoscopy are often *** To determine whether biopsy forceps(BF)could be used as a reference to improve the accuracy of binary classification of variceal *** An in vitro self-made EV model with sizes ranging from 2 to 12 mm in diameter was *** online image-based survey comprising 11 endoscopic images of simulated EV without BF and 11 endoscopic images of EV with BF was assembled and sent to 84 *** endoscopists were blinded to the actual EV size and evaluated the 22 images in random *** The respondents included 48 academic and four private *** accuracy of EV size estimation was low in both the visual(13.81%)and BF-based(20.28%)*** use of open forceps improved the ability of the endoscopists to correctly classify the varices by size(small≤5 mm,large>5 mm)from 71.85%to 82.17%(P<0.001).CONCLUSION BF may improve the accuracy of EV size assessment,and its use in clinical practice should be investigated.

关键词： Accuracy Liver cirrhosis Esophageal varices Endoscopy Measurement

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Prevalence and clinical impact of sarcopenia in liver transplant recipients:A meta-analysis

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World Journal of Gastroenterology 2024年第8期30卷 956-968页

作者： Min-Jie Jiang Mu-Chen Wu Zhong-hui duan Jing Wu Xiao-Tong Xu Juan Li Qing-Hua Meng Department of Hepatology Beijing You-An HospitalCapital Medical UniversityBeijing 100069China Department of Emergency Beijing You-An HospitalCapital Medical UniversityBeijing 100069China

BACKGROUND The prevalence of sarcopenia in patients undergoing liver transplantation(LT)remains to be determined partly because of different diagnostic *** has recently been recognized as a new prognostic factor for predicting outcomes in LT *** To estimate the prevalence of sarcopenia and evaluate its clinical effect on LT *** This systematic search was conducted in PubMed,Web of Science,Embase,and Cochrane Library for original English-language articles that investigated the prevalence and influence of sarcopenia in patients undergoing LT from database inception to November 30,*** studies of the definition of sarcopenia that estimate sarcopenia prevalence and evaluate its effect on clinical outcomes and the risk of mortality were *** Twenty-five studies involving 7760 patients undergoing LT were *** pooled prevalence of sarcopenia in patients undergoing LT was 40.7%[95%confidence intervals(95%CI):32.1-49.6].The 1-,3-,and 5-year cumulative probab-ilities of post-LT survival in patients with preoperative sarcopenia were all lower than those without sarcopenia(P<0.05).Sarcopenia was associated with an increased risk of post-LT mortality in patients undergoing LT(adjusted hazard ratio:1.58;95%CI:1.21-2.07).Patients with preoperative sarcopenia had a longer intensive care unit stay,a high risk ratio of sepsis,and serious post-LT complications than those without *** Sarcopenia is prevalent in a substantial proportion of patients undergoing LT and is strongly and independently associated with higher a risk of mortality risk.

关键词： Sarcopenia Liver transplantation Mortality Clinical outcomes

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Investigation of the cell composition and gene expression in the delayed-type hypersensitivity tuberculin skin test

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Military Medical Research 2024年第1期11卷 148-151页

作者： hui-Juan duan Hong-Qian Chu Ting-Ming Cao Guang-Ming Dai Na Tian Gang Sheng Zhao-Gang Sun Beijing Key Laboratory in Drug Resistant Tuberculosis Research Beijing Tuberculosis and Thoracic Tumor Research InstituteBeijing Chest HospitalCapital Medical UniversityBeijing 101149China

Dear Editor,The tuberculin skin test(TST)reagents have continuously improved,with the ESAT6-CFP10(EC)test having recently been introduced,but are seldom based on the direction of the delayed-type hypersensitivity(DTH)*** studies only partially showed the infiltration and activation of immune cells and the production of cytokines of the skin induration[1,2],and lack the detailed measurements of cell proportions and gene expression in the DTH ***,in this study,we revealed the comprehensive characteristics of DTH by single-cell RNA sequencing(scRNA-seq)in the guinea pig tuberculosis(TB)model[Experimental Animal Welfare Ethics Committee,Beijing Tuberculosis and Thoracic Tumor Research Institute(2021-064)].

关键词： Tuberculin skin test Delayed-type hypersensitivity Single-cell RNA sequencing

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Tandem catalysis of Cu/Ni multi-sites promotes oxygen reduction reaction

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Science China Materials 2024年第9期67卷 2934-2940页

作者： Bin-Bin Feng Ke-Ke Chang Wan-Feng Xiong duan-hui Si Shui-Ying Gao Hong-Fang Li Rong Cao College of Chemistry and Materials Science Fujian Normal UniversityFuzhou350007China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou350108China University of Chinese Academy of Sciences Beijing100049China

The special electronic characteristics and high atom usage efficiency of metal-nitrogen-carbon(M-N-C)materials have made them extremely attractive for oxygen reduction reactions(ORRs).However,it is inevitable that hydrogen peroxide(H_(2)O_(2))will be formed via the two-electron pathway in ***,the Cu nanoparticles(NPs)have been encapsulated into Ni doped hollow mesoporous carbon spheres(Ni-HMCS)to reduce the generation of H_(2)O_(2)in *** tests confirm that the introduction of Cu NPs improves the ORR performance *** obtained Cu/Ni-HMCS exhibits a half-wave potential of 0.82 V *** hydrogen electrode and a limited current density of 5.5 mA cm^(-2),which is comparable with the commercial Pt/***,Cu/Ni-HMCS has been used in Zn-air battery,demonstrating a high power density of 161 mW cm^(-2)and a long-term recharge capability(50 h at 5 mA cm^(-2)).The theoretical calculation proposes a tandem catalysis pathway for Cu/Ni multi-sites catalysis,that is,H_(2)O_(2)released from the Ni-N_(4)and Cu-N_(4)sites migrates to the Cu(111)face,on which the captive H_(2)O_(2)is further reduced to H_(2)*** work demonstrates an interesting tandem catalytic pathway of dual-metal multi-sites for ORR,which provides an insight into the development of effective fuel cell electrocatalysts.

关键词： oxygen reduction reaction tandem catalysis pathway dual-metal multi-sites Cu nanoparticles

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Spray pyrolysis feasibility of tungsten substitution for cobalt in nickel-rich cathode materials

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International Journal of Minerals,Metallurgy and Materials 2024年第10期31卷 2244-2252页

作者： Zihan Hou Lisheng Guo Xianlong Fu Hongxian Zheng Yuqing Dai Zhixing Wang hui duan Mingxia Dong Wenjie Peng Guochun Yan Jiexi Wang Key Laboratory of Value-added Metallurgy of Hunan Province Engineering Research Center of the Ministry of Education for Advanced Battery MaterialsSchool of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China BASF Shanshan Battery Materials Co.Ltd. Changsha 410205China

Cobalt(Co)serves as a stabilizer in the lattice structure of high-capacity nickel(Ni)-rich cathode ***,its high cost and toxicity still limit its *** general,it is possible to perform transition metal substitution to reduce the Co ***,the traditional coprecipitation method cannot satisfy the requirements of multielement coprecipitation and uniform distribution of elements due to the differences between element concentration and deposition *** this work,spray pyrolysis was used to prepare LiNi_(0.9)Co_(0.1-x)W_(x)O_(2)(LNCW).In this regard,the pyrolysis behavior of ammonium metatungstate was analyzed,together with the substitu-tion of W for *** the possibility of spray pyrolysis,the Ni-Co-W-containing oxide precursor presents a homogeneous distribution of metal elements,which is beneficial for the uniform substitution of W in the final *** was observed that with W substitution,the size of primary particles decreased from 338.06 to 71.76 nm,and cation disordering was as low as 3.34%.As a consequence,the pre-pared LNCW exhibited significantly improved electrochemical *** optimal conditions,the lithium-ion battery assembled with LiNi_(0.9)Co_(0.0925)W_(0.0075)O_(2)(LNCW-0.75mol%)had an improved capacity retention of 82.7%after 200 cycles,which provides insight in-to the development of Ni-rich low-Co *** work presents that W can compensate for the loss caused by Co deficiency to a cer-tain extent.

关键词： lithium-ion batteries Ni-rich low-cobalt W substitution spray pyrolysis

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超高强钢U形件热冲压的NSGA-Ⅱ多目标优化方法

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机械设计与制造 2024年第6期400卷 187-192页

作者：周梅段辉山东建筑大学山东济南250101

为了减小超高强钢U形件热冲压成形的回弹角和生产周期,提出了基于二元耦合选择NSGA-Ⅱ算法的多目标优化方法。介绍了超高强钢温度和微观组织随热冲压成形过程的变化情况,以减小成形回弹角和冲压周期为目标建立了多目标优化模型,选择了... 详细信息

为了减小超高强钢U形件热冲压成形的回弹角和生产周期,提出了基于二元耦合选择NSGA-Ⅱ算法的多目标优化方法。介绍了超高强钢温度和微观组织随热冲压成形过程的变化情况,以减小成形回弹角和冲压周期为目标建立了多目标优化模型,选择了坯料初始温度、冲压速度、保压压强作为优化的试验因素。在优化空间中随机抽取了50组采样点,根据试验得到了试验指标参数值。使用单个自适应神经元网络对试验指标和试验因素间的模型进行了回归,提出了二元耦合选择NSGA-Ⅱ算法进行优化模型求解。对优化后的参数组合进行生产验证,优化后回弹角均值比厂家产品减小了27.59%,单件的生产周期减小了3.52%,且回弹角和生产周期的标准差略有减小,说明优化后的生产质量、生产效率、生产稳定性均有所提高。

关键词： U形热冲压件超高强钢二元耦合选择单个自适应神经元网络多目标优化

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中国非遗对外翻译传播人才的能力构成要素与培养模式

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湘潭大学学报（哲学社会科学版） 2024年第1期48卷 188-192页

作者：邓军段慧如中南大学外国语学院湖南长沙410083

非物质文化遗产是一个民族的文化、智慧和精神的结晶。如何对外翻译传播非遗,提升中华文化的软实力已成为高校翻译专业不可推卸的责任。基于对外翻译传播的视角,梳理非遗翻译传播的现状及问题,探究非遗翻译传播能力构成要素、传播效果... 详细信息

非物质文化遗产是一个民族的文化、智慧和精神的结晶。如何对外翻译传播非遗,提升中华文化的软实力已成为高校翻译专业不可推卸的责任。基于对外翻译传播的视角,梳理非遗翻译传播的现状及问题,探究非遗翻译传播能力构成要素、传播效果评估方法以及高水平应用型对外翻译传播人才培养模式,有助于实现中华优秀传统文化的国际传播,促进东西方文明的交流与互鉴。

关键词：非物质文化遗产对外翻译传播能力构成要素对外翻译传播人才培养

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基于深度强化学习的可信分簇路由协议

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仪表技术与传感器 2024年第2期 117-126页

作者：段辉石琼师智斌中北大学计算机科学与技术学院

针对分簇路由协议中恶意节点充当簇头的安全性问题以及基于深度强化学习的路由协议存在收敛慢、波动大的难题,提出了一种基于信任机制和深度强化学习算法soft actor-critic(SAC)的分簇路由协议。该协议首先运用改进的标签传播算法对网... 详细信息

针对分簇路由协议中恶意节点充当簇头的安全性问题以及基于深度强化学习的路由协议存在收敛慢、波动大的难题,提出了一种基于信任机制和深度强化学习算法soft actor-critic(SAC)的分簇路由协议。该协议首先运用改进的标签传播算法对网络进行分簇。然后采用基于信任的簇头选举机制从簇内选出可信簇头,并采取主-从簇头机制防止簇头“叛变”成为恶意节点。最后利用SAC算法,将簇头作为智能体,实现动态路由决策。实验结果表明:该协议相较于RTRPT、SCR-TBE以及基于DQN、D3QN、PPO的路由协议,具有更优的性能和更好的收敛性。其丢包率、平均时延和网络吞吐量指标均为最优。在多个测试场景下,相较于PPO方案性能最小提升3.97%,最大提升22.39%。

关键词：无线传感器网络分簇路由协议网络安全深度强化学习信任机制

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基于深度强化学习的可信任务卸载方案

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计算机工程 2024年第8期50卷 142-152页

作者：石琼段辉师智斌中北大学计算机科学与技术学院山西太原030051

针对移动边缘计算(MEC)中边缘服务器是否可信的安全性问题,以及基于深度强化学习(DRL)的任务卸载方案存在收敛慢、波动大的难题,提出一种基于信任感知和DRL算法的任务卸载方案。首先,构建基于客观信息熵和历史卸载次数组合赋权的多源反... 详细信息

针对移动边缘计算(MEC)中边缘服务器是否可信的安全性问题,以及基于深度强化学习(DRL)的任务卸载方案存在收敛慢、波动大的难题,提出一种基于信任感知和DRL算法的任务卸载方案。首先,构建基于客观信息熵和历史卸载次数组合赋权的多源反馈信任融合模型,用于聚合信任反馈信息,评估边缘服务器的可信度;然后,利用基于优先级经验采样的优先经验回放(PER)-SAC算法,将基站作为智能体,负责计算任务的卸载决策。实验结果表明,该方案相较于TASACO、SRTO-DDPG和I-PPO方案,具有更优的性能和更好的收敛性,其累积奖励、时延和能耗指标均为最优,且其收敛速度更快、波动幅度更小,在多个测试场景下,相较于TASACO方案能耗性能最少提升5.8%,最大提升32.2%,时延性能最少提升8.5%,最大提升21.3%。

关键词：移动边缘计算任务卸载网络安全深度强化学习信任机制

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