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Compensation temperatures and hysteresis behaviors of a graphene-like trilayer

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Communications in Theoretical Physics 2024年第5期76卷 166-179页

作者： Ying An Ji Liang Wei Wang Mei-mei Du feng-ge Zhang School of Science Shenyang University of TechnologyShenyang 110870China School of Electrical Engineering Shenyang University of TechnologyShenyang 110870China

This work focuses on the ground-state phase diagram,the compensation temperatures and the critical behaviors of a ferrimagnetic graphene-like trilayer induced by crystal fields and exchange *** simulation results show that a negative decrease in crystal field or an increase in exchange coupling can increase the critical *** importantly,an M curve with double compensation temperatures can be observed,which is not predicted by the Neel *** remarkable compensation phenomenon has potential application value in the field of magnetic recording.

关键词： graphene-like trilayer mixed-spin Ising model magnetization double compensation temperatures triple-loop hysteresis monte Carlo

United under stress:High-speed transport network emerging at bacterial living edge

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Fundamental Research 2024年第3期4卷 563-569页

作者： Xiaodong Wen Jingjing feng Yuqian Sang feng ge Hugues Chaté Yan He Department of Chemistry Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyTshinghua UniversityBeijing 100084China Service de Physique de l'Etat Condensé CEACNRSUniversitéParis-SaclayCEA-SaclayGif-sur-Yvette 91191France Beijing Computational Science Research Center Beijing 100094China

Individuals tend to move freely when there is enough room but would act collectively for their survival under external *** the case of living cells,for instance,when a drop of low-density flagellated bacterial solution is transferred onto the agar surface,the initially disordered movement of individual bacteria would be replaced with coordinated cell swarming after a lag phase of a few ***,we study how such cooperation is established while overcoming the disorder at the onset of the lag phase with single nanoparticle *** the spreading of the droplet,the bacteria in the solution cluster and align near the almost immobilized contact line confining the drop,forming a narrow ring of *** individual cells move in and out of the ring continuously,certain flow patterns emerge in the inter-bacterial *** reveal high-speed long-distance unidirectional flows with definite chirality along the outside of the ring,along the inside of the ring and across the *** speculate that these flows enable the fast and efficient transport,facilitating the communication and unification of the bacterial community.

关键词： Bacterial droplet Environmental stress Single particle tracking Biological edge Flow transport network

Increased glacier melt enhances future extreme floods in the southern Tibetan Plateau

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Advances in Climate Change Research 2024年第3期15卷 431-441页

作者： He SUN Tan-Dong YAO feng-ge SU Tinghai Ou Zhihua HE Guoqiang TANG Deliang CHEN State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China Regional Climate Group Department of Earth SciencesUniversity of GothenburgGothenburg 40530Sweden Centre for Hydrology University of SaskatchewanSaskatoon S7N 1K2Canada Climate and Global Dynamics National Center for Atmospheric ResearchBoulder CO 80307USA

Mountainous areas are of special hydrological concern because topography and atmospheric conditions can result in large and sudden floods,posing serious risks to water-related safety in neighbouring *** Yarlung Zangbo(YZ)River basin is the largest river basin on the Tibetan Plateau(TP),but how floods will discharge in this basin and how the role of glacier melt in floods will change throughout the 21st-century under shared socioeconomic pathways scenarios(SSP2-4.5 and SSP5-8.5)remain ***,we comprehensively address this scientific question based on a well-validated large-scale glacier-hydrology *** results indicate that extreme floods was projected to increase in the YZ basin,and was mainly reflected in increased duration(4–10 d per decade)and intensity(153–985 m^(3)s^(−1)per decade).Glacier runoff was projected to increase(2–30 mm per decade)throughout the 21st-century,but there was also a noticeable decrease or deceleration in glacier runoff growth in the late first half of the century under the SSP2-4.5,and in the latter half of the century under the *** melt was projected to enhance the duration(12%–23%)and intensity(15%–21%)of extreme floods under both SSPs,which would aggravate the impact of future floods on the socioeconomics of the YZ *** effect was gradually overwhelmed by precipitation-induced floods from glacier areas to YZ *** study takes the YZ basin as a projection framework example to help enrich the understanding of future flood hazards in basins affected by rainfall-or meltwater across the TP,and to help policy-makers and water managers develop future plans.

关键词： floods glacier Tibetan

Application of ^(18)F-fluorodeoxyglucose positron emission tomography/computed tomography imaging in recurrent anastomotic tumors after surgery in digestive tract tumors

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2474-2483页

作者： Deng-feng ge Hao Ren Zi-Chen Yang Shou-Xiang Zhao Zhen-Ting Cheng Da-Da Wu Bin Zhang Department of Cardiothoracic Surgery Nanjing University of Chinese MedicineNanjing 210023Jiangsu ProvinceChina Department of Gastrointestinal Surgery Shanghai Sixth People’s HospitalShanghai 250063China

BACKGROUND This study was to investigate the application value of whole-body dynamic ^(18)F-fluorodeoxyglucose(FDG)positron emission tomography/computed tomogra-phy(PET/CT)imaging in recurrent anastomotic tumors of digestive tract after gastric and esophageal cancer *** patients with gastric and esophageal cancer have a high risk of tumor recurrence,and traditional imaging methods have certain limitations in early detection of recurrent ***-body dynamic ^(18)F-FDG PET/CT imaging,due to its high sensitivity and specifi-city,can provide comprehensive information on tumor metabolic activity,which is expected to improve the early diagnosis rate of postoperative recurrent tumors,and provide an important reference for clinical treatment *** A retrospective analysis was performed on 53 patients with upper digestive tract tumors after operation and systemic dynamic ^(18)F-FDG PET/CT imaging indi-cating abnormal FDG uptake by anastomosis,including 29 cases of gastric cancer and 24 cases of esophageal *** to the follow-up results of gas-troscopy and other imaging examinations before and after PET/CT examination,the patients were divided into an anastomotic recurrence group and anastomotic inflammation *** multi-parameter analysis software was used to obtain the metabolic rate(MRFDG),volume of distribution maximum(DVmax)of anastomotic lesions,and MRmean and DVmean of normal liver *** lesion/background ratio(LBR)was calculated by dividing the MRFDG and DVmax of the anastomotic lesion by the MRmean and DVmean of the normal liver tissue,respectively,to obtain LBR-MRFDG and *** independent sample t test was used for statistical analysis,and a receiver operating characteristic curve was used to analyze the differential diagnostic efficacy of each parameter for anastomotic recurrence and *** The dynamic ^(18)F-FDG PET/CT imaging parameters MRFDG,DVmax,LBR-MRFDG,and LBR-DVmax of post

关键词： Gastric cancer Esophageal cancer Anastomosis Dynamic positron emission tomography Differential diagnosis Metabolic rate

青少年严重骨性Ⅱ类错伴高角病例序列治疗1例

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中华口腔医学杂志 2024年第9期59卷 955-959页

作者：冯格宋锦璘重庆医科大学附属口腔医院正畸科口腔疾病与生物医学重庆市重点实验室重庆市高校市级口腔生物医学工程重点实验室重庆

本文报道1例青少年严重骨性Ⅱ类错伴高角患者的序列治疗过程。该患者于9至14岁期间, 依次经上颌活动扩弓、片段弓间隙维持及个别牙矫治、腺样体及扁桃体切除、唇肌功能训练以及种植体支抗辅助下固定减数矫治, 最终获得口内咬合和颜面美...

本文报道1例青少年严重骨性Ⅱ类错伴高角患者的序列治疗过程。该患者于9至14岁期间, 依次经上颌活动扩弓、片段弓间隙维持及个别牙矫治、腺样体及扁桃体切除、唇肌功能训练以及种植体支抗辅助下固定减数矫治, 最终获得口内咬合和颜面美观的良好效果。

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城乡低效用地潜力测度与盘活路径研究——以沛县为例

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中国名城 2024年第3期38卷 17-24页

作者：葛峰中规院(北京)规划设计有限公司江苏分公司空间规划一所

城乡低效用地挖潜和盘活是缓解土地供需矛盾,促进用地节约集约发展的重要方式。系统梳理低效用地的内涵界定和主要特征,结合沛县实践,将低效城镇用地、低效工矿用地和低效村庄用地作为重点研究对象,从土地效益、土地效率、土地管理3个... 详细信息

城乡低效用地挖潜和盘活是缓解土地供需矛盾,促进用地节约集约发展的重要方式。系统梳理低效用地的内涵界定和主要特征,结合沛县实践,将低效城镇用地、低效工矿用地和低效村庄用地作为重点研究对象,从土地效益、土地效率、土地管理3个角度构建“3项一级指标、8项二级指标、24项分项评价指标”的低效用地潜力测度评价体系,并对低效用地的空间分布特征及其成因分析,提出了建立数据库、完善目标内涵、坚持顶层设计和规划先行、探索差异化的再利用模式和健全制度体系等建议,为后续相关工作提供支撑。

关键词：低效用地空间潜力测度指标评价体系低效盘活路径沛县

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数字经济时代构建和谐劳动关系探赜

上海经济研究 2024年第7期 24-32页

作者：王宝珠葛丰收上海外国语大学马克思主义学院 201620

相较于工业经济时代,数字经济时代劳动关系呈现新样态。构建数字经济时代和谐的劳动关系对于确保劳动者权益、推进中国数字经济发展、推动共同富裕取得扎实性进展有着重要作用。本文基于促进全体人民共同富裕目标下数字经济和谐劳动关... 详细信息

相较于工业经济时代,数字经济时代劳动关系呈现新样态。构建数字经济时代和谐的劳动关系对于确保劳动者权益、推进中国数字经济发展、推动共同富裕取得扎实性进展有着重要作用。本文基于促进全体人民共同富裕目标下数字经济和谐劳动关系的构建逻辑,从完善数字劳动过程中的政府规制、构建服务于共同富裕的中国特色社会主义分配制度体系、构建数据产权制度体系、构建适应平台经济的监管制度体系和数字空间工会体系等四个角度提出政策建议,以期能够为构建数字经济和谐劳动关系提供有益支持。

关键词：数字经济共同富裕劳动关系新样态不完全劳动关系治理逻辑

KRT6A介导Wnt/β-catenin信号通路调节上皮-间质转化促进非小细胞肺癌A549细胞抗辐射

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中国医科大学学报 2024年第7期53卷 628-634页

作者：尹策刘畅冯革中国医科大学附属盛京医院肿瘤中心沈阳110004 中国医科大学附属第一医院放疗科沈阳110001

目的探讨KRT6A对非小细胞肺癌A549细胞抗辐射的促进作用,并阐明其作用机制。方法诱导并建立抗辐射A549(A549-RR)细胞,通过CCK-8法、平板克隆形成实验和流式细胞术验证细胞构建成功。Western blotting检测A549和A549-RR细胞中KRT6A表... 详细信息

目的探讨KRT6A对非小细胞肺癌A549细胞抗辐射的促进作用,并阐明其作用机制。方法诱导并建立抗辐射A549(A549-RR)细胞,通过CCK-8法、平板克隆形成实验和流式细胞术验证细胞构建成功。Western blotting检测A549和A549-RR细胞中KRT6A表达情况。将A549-RR细胞分为敲减对照组(sh-NC组)和敲减KRT6A组(sh-KRT6A组),Western blotting检测KRT6A、上皮-间质转化(EMT)相关蛋白(E-cadherin、N-cadherin、Vimentin、Snail和Slug)以及β-catenin的表达;采用CCK-8法、平板克隆形成实验和流式细胞术检测细胞增殖及凋亡情况。将A549-RR细胞分为sh-NC组、sh-KRT6A组、敲减KRT6A和过表达对照(shKRT6A+ov-NC组)以及敲减KRT6A和过表达β-catenin (sh-KRT6A+ov-β-catenin组),Western blotting检测β-catenin以及EMT相关蛋白E-cadherin、N-cadherin、Vimentin、Snail和Slug的表达;采用CCK-8法、平板克隆形成实验和流式细胞术检测细胞增殖及凋亡情况。结果成功建立了A549-RR细胞,A549-RR细胞中KRT6A表达上调。敲减KRT6A降低A549-RR细胞增殖活性和克隆形成能力,增加细胞凋亡率,上调E-cadherin蛋白表达并下调N-cadherin、Vimentin、Snail、Slug和β-catenin蛋白表达;过表达β-catenin可逆转此作用。结论 KRT6A在A549-RR细胞中表达上调,敲减KRT6A可降低A549-RR细胞的抗辐射能力,其机制可能与激活Wnt/β-catenin信号通路诱导的EMT有关。

关键词：非小细胞肺癌角蛋白6A 放疗上皮-间质转化 Wnt/β-catenin信号通路

碳酸氢钠林格注射液对创伤失血性休克患者的复苏效果研究

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中国基层医药 2024年第3期31卷 422-426页

作者：成斌葛风丁谦谦义乌市中心医院急诊科义乌322000

目的分析碳酸氢钠林格注射液对创伤失血性休克患者的复苏效果。方法选取义乌市中心医院2021年2月至2022年2月收治的创伤失血性休克患者70例进行随机对照研究,按照随机数字表法将其分为对照组(n=35)和观察组(n=35)。在常规救治基础上,对... 详细信息

目的分析碳酸氢钠林格注射液对创伤失血性休克患者的复苏效果。方法选取义乌市中心医院2021年2月至2022年2月收治的创伤失血性休克患者70例进行随机对照研究,按照随机数字表法将其分为对照组(n=35)和观察组(n=35)。在常规救治基础上,对照组给予充足复方氯化钠注射液复苏治疗,观察组给予限制性碳酸氢钠林格注射液复苏治疗,比较两组临床相关指标、凝血功能和乳酸水平、血液流变学指标、并发症发生情况。结果观察组血氧饱和度、休克指数、血压脉率差、尿量分别为(76.53±2.56)%、(0.43±0.07)、(38.56±6.52)mmHg(1 mmHg=0.133 kPa)、(35.62±4.21)mL/h,均优于对照组的(65.32±3.21)%、(1.21±0.13)、(23.56±4.23)mmHg、(23.65±5.68)mL/h(t=16.15、31.25、11.42、10.06,均P<0.001)。观察组凝血酶原时间、纤维蛋白原、活化部分凝血活酶时间、凝血酶时间分别为(17.65±0.83)s、(1.69±0.89)g/L、(39.68±0.52)s、(17.86±0.74)s,均优于对照组的(14.56±0.86)s、(1.32±0.23)g/L、(35.26±0.16)s、(16.02±0.05)s,乳酸为(2.24±0.53)mmol/L,低于对照组的(2.94±0.78)mmol/L(t=15.30、2.38、48.06、14.68、4.39,均P<0.05)。两组血小板凝聚力、红细胞变形性、血液黏度均显著降低,且观察组均优于对照组(t=13.71、5.64、5.67,均P<0.001)。观察组并发症发生率为8.6%(3/35),低于对照组的60.0%(21/35)(χ^(2)=10.08,P<0.05)。结论碳酸氢钠林格液限制性液体复苏可改善创伤失血性休克患者的临床指标、凝血功能和乳酸水平,有效改善血流动力学指标,减少并发症的发生,值得临床推广。

关键词：创伤和损伤休克,出血性血液凝固因子乳酸血液流变学碳酸氢钠林格液