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Perioperative outcomes of transvaginal specimen extraction laparoscopic total gastrectomy and conventional laparoscopicassisted total gastrectomy

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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1527-1536页

作者： Zhi-Cao Zhang Wen-Sheng Wang Jiang-Hong Chen Yuan-Hang ma Qi-fa Luo Yun-Bo Li Yang Yang Dan ma Department of General Surgery Xinqiao Hospital of Army Medical UniversityChongqing 400037China

BACKGROUND Natural orifice specimen extraction surgery(NOSES)has emerged as a promising alternative compared to conventional laparoscopic-assisted total gastrectomy(LATG)for treating gastric cancer(GC).However,evidence regarding the efficacy and safety of NOSES for GC surgery is *** study aimed to compare the safety and feasibility,in addition to postoperative complications of NOSES and *** Dual circular staplers were used in Roux-en-Y digestive tract reconstruction for transvaginal specimen extraction LATG,and its outcomes were compared with LATG in a cohort of 51 GC patients with tumor size≤5 *** study was conducted from may 2018 to September 2020,and patients were categorized into the NOSES group(n=22)and LATG group(n=29).Perioperative parameters were compared and analyzed,including patient and tumor characteristics,postoperative outcomes,and anastomosis-related complications,postoperative hospital stay,the length of abdominal incision,difference in tumor type,postoperative complications,and postoperative *** Postoperative exhaust time,operation duration,mean postoperative hospital stay,length of abdominal incision,number of specific staplers used,and Brief Illness Perception Questionnaire score were significant in both groups(Pfaster postoperative recovery,and achieved abdominal minimally invasive incision that met aesthetic *** were no significant differences in gender,age,tumor type,postoperative complications,and postoperative survival between the two *** The application of dual circular staplers in Roux-en-Y digestive tract reconstruction combined with NOSES gastrectomy is safe and *** approach offers better short-term outcomes compared to LATG,while long-term survival

关键词： Gastric cancer Circular stapler Natural orifice specimen extraction surgery Laparoscopic-assisted total gastrectomy

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Serum bile acid and unsaturated fatty acid profiles of non-alcoholic fatty liver disease in type 2 diabetic patients

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World Journal of Diabetes 2024年第5期15卷 898-913页

作者： Su-Su Feng Si-Jing Wang Lin Guo Pan-Pan ma Xiao-Long Ye Ming-Lin Pan Bo Hang Jian-Hua mao Antoine M Snijders Yi-Bing Lu Da-fa Ding Department of Endocrinology The Second Affiliated Hospital of Nanjing Medical UniversityNanjing 210011Jiangsu ProvinceChina Biological Systems and Engineering Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720United States

BACKGROUND The understanding of bile acid(BA)and unsaturated fatty acid(Ufa)profiles,as well as their dysregulation,remains elusive in individuals with type 2 diabetes mellitus(T2DM)coexisting with non-alcoholic fatty liver disease(NAFLD).Investigating these metabolites could offer valuable insights into the pathophy-siology of NAFLD in *** To identify potential metabolite biomarkers capable of distinguishing between NAFLD and *** A training model was developed involving 399 participants,comprising 113 healthy controls(HCs),134 individuals with T2DM without NAFLD,and 152 individuals with T2DM and *** validation encompassed 172 *** patients were divided based on liver fibrosis *** analytical approach employed univariate testing,orthogonal partial least squares-discriminant analysis,logistic regression,receiver operating characteristic curve analysis,and decision curve analysis to pinpoint and assess the diagnostic value of serum *** Compared to HCs,both T2DM and NAFLD groups exhibited diminished levels of specific *** Ufas,particular acids exhibited a positive correlation with NAFLD risk in T2DM,while theω-6:ω-3 Ufa ratio demonstrated a negative *** ofα-linolenic acid andγ-linolenic acid were linked to significant liver fibrosis in *** validation cohort substantiated the predictive efficacy of these biomarkers for assessing NAFLD risk in T2DM *** This study underscores the connection between altered BA and Ufa profiles and the presence of NAFLD in individuals with T2DM,proposing their potential as biomarkers in the pathogenesis of NAFLD.

关键词： Bile acid Non-alcoholic fatty liver disease Type 2 diabetes mellitus Unsaturated fatty acid

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弯剪耦合作用下大尺寸碳纤维C型梁失效损伤模式分析

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纺织学报 2024年第2期45卷 93-100页

作者：赵紫昱杨曈张发马丕波江南大学纺织科学与工程学院江苏无锡214122 中国商用飞机有限责任公司北京民用飞机技术研究中心北京100000

为进一步探究大尺寸碳纤维C型梁结构抗弯剪屈曲的承载性能,提出了一种可同时施加弯曲和剪切载荷并任意调节弯剪比的试验装置。通过设计3种不同弯剪耦合条件进行试验载荷的加载,使用应变片监测大尺寸碳纤维C型梁结构在屈曲以及后屈曲阶... 详细信息

为进一步探究大尺寸碳纤维C型梁结构抗弯剪屈曲的承载性能,提出了一种可同时施加弯曲和剪切载荷并任意调节弯剪比的试验装置。通过设计3种不同弯剪耦合条件进行试验载荷的加载,使用应变片监测大尺寸碳纤维C型梁结构在屈曲以及后屈曲阶段应变分布状况。通过有限元模型对基于不同损伤准则的后屈曲行为进行预测。研究结果表明:大尺寸碳纤维C型梁在抗弯和抗弯剪耦合的载荷条件下,都具有优良的后屈曲承载能力;在2种弯剪耦合条件下,试验件分别在3.28倍和2.3倍设计载荷时发生梁腹板失稳现象,试验件进入后屈曲状态,继续进行弯剪耦合载荷的加载,达到4.6倍设计载荷后,样品出现局部损伤;采用Hashin和LaRC05准则对试验件损伤情况进行预测,破坏损伤形式分别为沿45°方向开始向外扩展和上部翼缘扭曲破坏。

关键词：大尺寸C型梁弯剪耦合应变测量后屈曲损伤预测

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Spatial construction of ultrasmall Pt-decorated 3D spinel oxidemodified N-doped graphene nanoarchitectures as high-efficiency methanol oxidation electrocatalysts

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Rare Metals 2024年第1期43卷 186-197页

作者： Qi Zhang Min-Min Yan Wen-fa Du Chen-Yu Yin Jian Zhang Lu Yang Yun-Qing Kang Hai-Yan He Hua-Jie Huang College of Mechanics and materials Hohai UniversityNanjing 210098China New Energy Technology Engineering Lab of Jiangsu Province College of ScienceNanjing University of Posts&Telecommunications(NUPT)Nanjing 210023China International Center for materials Nanoarchitectonics(WPImaNA) National Institute for Materials ScienceTsukuba 305-0044IbarakiJapan

Direct methanol fuel cell technology recently becomes the focus of both academic and engineering circles,which stimulates the exploitation and utilization of advanced electrode catalysts with high activity and long ***,we demonstrate a robust bottom-up approach to the spatial construction of three-dimensional(3D) spinel manganese-cobalt oxide-modified N-doped graphene nanoarchitectures decorated with ultrasmall Pt nanoparticles(Pt/MnCo_(2)O_(4)-NG) via a controllable selfassembly *** incorporation of MnCo_(2)O_(4)nanocrystals provides abundant hydroxyl sources to promote the oxidative removal of CO-like byproducts on Pt sites,while the existence of 3D porous N-doped graphene networks facilitates the transportation of both ions and electrons in the hybrid system,thus giving rise to remarkable synergetic coupling effects during the methanol oxidation ***,the optimized Pt/MnCo_(2)O_(4)-NG nano architecture expres ses exceptional electrocatalytic properties with a large electrochemically active surface area of 99.5 m^(2)·g^(-1),a high mass activity of1508.3 ma·mg^(-1),strong toxicity resistance and reliable long-term durability,which have obvious competitive advantages over those of conventional Pt/carbon black,Pt/carbon nano tube,Pt/graphene,and Pt/N-doped graphene catalysts with the same Pt usage.

关键词： Platinum MnCo_(2)O_(4) 3D graphene Electrocatalysts Methanol oxidation

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国际贸易中的知识产权“隐性壁垒”与中国因应

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上海对外经贸大学学报 2024年第2期31卷 56-70页

作者：马忠法王悦玥复旦大学法学院上海200438

“隐性壁垒”是指没有相应国际法规范约束,但在国际贸易实践中能够产生限制贸易和排除竞争效果的贸易壁垒。知识产权保护及执法情况的“声誉罚”、知识产权单边调查及制裁和将人权等其他问题引入知识产权议题是知识产权国际竞争中“隐... 详细信息

“隐性壁垒”是指没有相应国际法规范约束,但在国际贸易实践中能够产生限制贸易和排除竞争效果的贸易壁垒。知识产权保护及执法情况的“声誉罚”、知识产权单边调查及制裁和将人权等其他问题引入知识产权议题是知识产权国际竞争中“隐性壁垒”的主要表现形式。知识产权“隐性壁垒”的频繁出现,是知识产权的私权属性以及国际知识产权领域私法行为公法化现象共同作用的结果。知识产权“隐性壁垒”具有单边性、霸权性以及间接影响大于直接影响的特征。“隐性壁垒”的存在导致国外企业不敢进口“涉嫌侵权”的产品,国内企业因此丧失交易机会。国内优势产业被排挤出全球产供链的风险提升,从发达国家获取技术的难度增加,导致知识产权国内保护标准被迫提升。对此,我国应当深入开展“一带一路”知识产权国际协调,与其他参与国一起应对责难,探索构建规制由国家主导的商业诋毁行为的规则,加强涉外知识产权人才培养与国际舆论治理,及时反击不实言论。

关键词：隐性壁垒知识产权声誉罚一带一路

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Interaction between systemic iron parameters and left ventricular structure and function in the preserved ejection fraction population:a two-sample bidirectional Mendelian randomization study

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Journal of Geriatric Cardiology 2024年第1期21卷 64-80页

作者： Xiong-Bin ma Yong-Ming LIU Yan-Lin LV Lin QIAN The First Clinical Medical College of Lanzhou University LanzhouGansuChina Geriatric Cardiovascular Department and Gansu Clinical Research Center for Geriatric Diseases First Hospital of Lanzhou UniversityGansuChina

BACKGROUND Left ventricular(LV)remodeling and diastolic function in people with heart failure(HF)are correlated with iron status;however,the causality is *** Mendelian randomization(MR)study investigated the bidirectional causal relationship between systemic iron parameters and LV structure and function in a preserved ejection fraction *** Transferrin saturation(TSAT),total iron binding capacity(TIBC),and serum iron and ferritin levels were extracted as instrumental variables for iron parameters from meta-analyses of public genome-wide association *** without myocardial infarction history,HF,or LV ejection fraction(LVEF)magnetic Resonance Imaging Study constituted the outcome *** dataset included LV end-diastolic volume,LV endsystolic volume,LV mass(LVM),and LVM-to-end-diastolic volume ratio(LVMVR).We used a two-sample bidirectional MR study with inverse variance weighting(IVW)as the primary analysis method and estimation methods using different algorithms to improve the robustness of the *** In the IVW analysis,one standard deviation(SD)increased in TSAT significantly correlated with decreased LVMVR(β=-0.1365;95%confidence interval[CI]:-0.2092 to-0.0638;P=0.0002)after Bonferroni ***,no significant relationships were observed between other iron and LV *** Bonferroni correction,reverse MR analysis showed that one SD increase in LVEF significantly correlated with decreased TSAT(β=-0.0699;95%CI:-0.1087 to-0.0311;P=0.0004).No heterogeneity or pleiotropic effects evidence was observed in the *** We demonstrated a causal relationship between TSAT and LV remodeling and function in a preserved ejection fraction population.

关键词： fraction function parameters

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magnetic and electrical transport properties in GdAlSi and SmalGe

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Chinese Physics B 2024年第7期33卷 554-560页

作者：巩静王欢马小平曾祥雨林浚发韩坤王乙婷夏天龙 Department of Physics Renmin University of ChinaBeijing 100872China Beijing Key Laboratory of Opto-electronic Functional materials&Micro-nano Devices Renmin University of ChinaBeijing 100872China Key Laboratory of Quantum State Construction and manipulation(Ministry of Education) Renmin University of ChinaBeijing 100872China Laboratory for Neutron Scattering Renmin University of ChinaBeijing 100872China

We conduct a detailed examination of the magnetic and electrical transport properties in GdAlSi and SmalGe crystals,which possess a LaPtSi-type structure(space group I4_(1)md).The magnetic susceptibility data unambiguously reveal magnetic ordering below a characteristic transition temperature(T_(N)).For GdAlSi,a hysteresis loop is observed in the magnetization and magnetoresistance curves within the ab plane when the magnetic field is applied below T_(N),which is around32 *** specific heat anomalies are detected at 32 K for GdAlSi and 6 K for SmalGe,confirming the occurrence of magnetic *** addition,the extracted magnetic entropy at high temperatures is consistent with the theoretical value of Rln(2J+1) for J=7/2 in Gd^(3+) and J=5/2 in Sm^(3+),*** also exhibits Schottky-like specific heat ***,both GdAlSi and SmalGe exhibit positive magnetoresistance and a normal Hall effect.

关键词： crystal growth magnetism magnetotransport properties specific heat

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基于Biomod2组合模型对入侵害虫杏鬃球蚧的潜在适生区预测

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林业科学研究 2024年第4期37卷 136-147页

作者：郭发城马贵龙高桂珍新疆农业大学林学与风景园林学院新疆乌鲁木齐830052

[目的]杏鬃球蚧作为新入侵新疆野果林的多食性害虫,具备繁殖速度快、繁殖量大和扩散迅猛等特征,凸显其在生态系统中具备显著的生态适应性和竞争优势。其不仅对野杏危害严重,还对野果林及当地果园的生态环境和生物多样性造成重大威胁。... 详细信息

[目的]杏鬃球蚧作为新入侵新疆野果林的多食性害虫,具备繁殖速度快、繁殖量大和扩散迅猛等特征,凸显其在生态系统中具备显著的生态适应性和竞争优势。其不仅对野杏危害严重,还对野果林及当地果园的生态环境和生物多样性造成重大威胁。通过建立并比较不同类型影响因素下的物种分布模型获得杏鬃球蚧更准确的适生区分布。[方法]通过R语言Biomod2包集成建立物种分布模型(SDM),分别对仅基于气候因素和基于寄主和气候因素两种模式下的杏鬃球蚧分布格局进行预测,以期为入侵害虫制定综合防控策略提供理论依据。[结果]添加生物变量后的生态位结果与实际分布结果相符,剔除了仅基于气候因素下杏鬃球蚧在沙漠地区的扩张范围,避免了预测结果基础生态位比实际生态位大的问题,预测结果准确率更高,因此选用添加寄主因素的预测结果用于分析。在添加寄主因素后当前总适生区面积15.06×10^(5)km^(2),主要分布在与哈萨克斯坦交界处、天山北脉博罗科努山北麓和伊犁河谷等地;在2090s时期SSP5-85情景下总适生面积达到最大45.31×10^(5)km^(2)。在未来不同的气候情景下,杏鬃球蚧的总适生区均呈不同幅度的扩张趋势,在伊犁哈萨克自治州、博尔塔拉蒙古自治州、昌吉回族自治州、阿勒泰地区等地适生性显著提高。[结论]本研究构建的7种单一模型的组合模型,其AUC平均值达到0.97,TSS平均值达到0.88,预测准确度高;在添加寄主因素后适生区与实际更吻合,结果较仅添加气候因子更为可靠;预测结果为杏鬃球蚧在新疆的预警、监控和防治提供科学参考。

关键词：生物入侵杏鬃球蚧潜在分布生物变量气候变化

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Ultra Reliable Load-Aware Connection management(LACM)Algorithm in WIA-fa Systems

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China Communications 2024年第8期21卷 142-161页

作者： Liu Gang Jiang Chunhao Ren Xiaochun fan Pingzhi Liang Chengchao ma Zheng Southwest Jiaotong University Chengdu 611756China State Key Laboratory of Rail Transit Engineering Informatization(FSDI) Xi’an 710043China Chongqing University of Posts and Telecommunications Chongqing 400065China

The increasing demand for industrial automation and intelligence has put forward higher requirements for the reliability of industrial wireless communication *** an international standard based on 802.11,Wireless networks for Industrial Automation-factory Automation(WIA-fa)greatly improves the reliability in factory automation scenarios by Time Division Multiple Access(TDma).However,in ultra-dense WIA-fa networks with mobile users,the basic connection management mechanism is *** of the handover and resource management algorithms are all based on frequency division multiplexing,not suitable for the TDma in the WIA-fa ***,we propose Load-aware Connection management(LACM)algorithm to adjust the linkage and balance the load of access devices to avoid blocking and improve the reliability of the *** then we simulate the algorithm to find the optimal settings of the *** comparing with other existing algorithms,the result of the simulation proves that LACM is more efficient in reliability and maintains high reliability of more than 99.8%even in the ultra-dense moving scenario with 1500 field ***,this algorithm ensures that only a few signaling exchanges are required to ensure load bal-ancing,which is no more than 5 times,and less than half of the best state-of-the-art algorithm.

关键词： connection management load-aware multi-connectivity reliability retransmission WIAfa

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TMD对人行桥疲劳寿命的影响研究

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振动工程学报 2024年第6期37卷 928-936页

作者：马法荣朱前坤蒲兴龙杜永峰河西学院土木工程学院甘肃张掖734000 兰州理工大学防震减灾研究所甘肃兰州730050

针对人群运动导致人行结构振动过大而日益突出的疲劳破坏问题,可供参考的研究成果甚少。本文以钢-玻璃人行桥为试验平台开展关于安装TMD前后人致人行桥疲劳性能的研究,采用APS400电子激振器激励模拟人行荷载,通过长期应变监测数据,分析... 详细信息

针对人群运动导致人行结构振动过大而日益突出的疲劳破坏问题,可供参考的研究成果甚少。本文以钢-玻璃人行桥为试验平台开展关于安装TMD前后人致人行桥疲劳性能的研究,采用APS400电子激振器激励模拟人行荷载,通过长期应变监测数据,分析得出了该结构下的疲劳应力谱以及日平均损伤度,进而预估其疲劳寿命。结果表明:安装TMD后,结构1/2处的加速度峰值由0.15 m/s²减少到0.084 m/s²,减振率达44.0%;位移峰值由2.98 mm减少到0.92 mm,减振率达69.1%;应变幅值由40με减少到13με,减振率达67.5%。结构跨中处等效应力幅值最大,疲劳寿命最短,为74年;安装TMD后,结构跨中处疲劳寿命为2880年,延长近39倍,其他测点处依次延长了3.95倍、7.41倍。

关键词：钢-玻璃人行桥疲劳破坏应变监测疲劳应力谱疲劳寿命

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