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Prospective study of light dark matter search with a newly proposed DarkSHINE experiment

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Science China(Physics,Mechanics & Astronomy) 2023年第1期66卷 124-138页

作者： Jing Chen Ji-Yuan Chen Jun-Feng Chen Xiang Chen Chang-Bo Fu Jun Guo Le He Zheng-Ting He Kim Siang Khaw Jia-Lin Li Liang Li Shu Li Meng Lv Dan-Ning Liu Han-Qing Liu Kun Liu Qi-Bin Liu Yang Liu Ze-Jia Lu cen mo Si-Yuan Song Xiao-Long Wang Yu-Feng Wang Zhen Wang Zi-Rui Wang Wei-Hao Wu Dao Xiang Hai-Jun Yang Jun-Hua Zhang Yu-Lei Zhang Zhi-Yu Zhao Xu-Liang Zhu Chun-Xiang Zhu Yi-Fan Zhu Tsung-DaoLee Institute Shanghai Jiao Tong UniversityShanghai 201210China Institute of Nuclear and Particle Physics School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Particle Astrophysics and Cosmology(moE) Shanghai Key Laboratory for Particle Physics and Cosmology(SKLPPC)Shanghai 200240China center for High Energy Physics Peking UniversityBeijing 10087lChina School of Mechanical and Electronic Engineering Suzhou UniversitySuzhou 234000China School of Aeronautics and Astronautics Shanghai Jiao Tong UniversityShanghai 200240China School of Electronics Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240China R&D center Shanghai Instituteof CeramicsChinese Academyof SciencesShanghai 20189China Key Laboratory of Nuclear Physics and lon-beam Application(moE) Fudan UniversityShanghai 200443China Institute of modern Physics Fudan UniversityShanghai 200443China IKey Laboratory for Laser Plasmas(moE) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Zhangjiang Institute for Advanced Study Shanghai JiaoTong UniversityShanghai 200240.China College of Literature Scienceand the ArtsUniversity of MichiganAnn Arbor MI 48109-1040USA Deparment of Physics Swiss Federal Institnute of Technology ZurichZurich 8093Swizerland

Dark photons have been well motivated as strong candidates for dark force carriers and light dark matter in the sub-GeV mass *** with collider experiments,fixed-target experiments provide a complementary approach to searching for dark photons,particularly in the lower mass *** have studied the physics potential of the electron-on-target experiment based on the Shanghai SHINE facility,which provides 10 MHz single electron beam at 8 GeV *** analysis focuses on dark photons being produced via electron and nucleon interaction and then decays to dark matter candidates,which escape detection as missing momentum in the *** experiment takes advantage of using missing momentum to enhance signal versus background separation *** this study,signal samples as a function of dark photon mass and an inclusive background sample with 2.5 billion events are simulated with *** better background estimates,major rare background processes have also been *** paper presents the experiment and detector design,signal and background simulations,analysis strategy,and the prospective study of the experiment *** 9×10^(14) electron-on-target events(about three years running),this experiment is expected to rule out most of the sensitive regions predicted by popular dark photon models.

关键词： dark matter dark photon electron-on-target experiment

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大学生网络成瘾与人际困扰的关系——孤独感的中介作用

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贵阳学院学报（自然科学版） 2019年第1期14卷 17-20页

作者：岑模芬陈庆菊贵州师范大学教育科学学院贵州贵阳550001

采用网络成瘾量表、孤独量表、人际关系诊断量表对贵州省403名大学生进行了调查,以探讨孤独感在网络成瘾与人际困扰间的中介作用。结果表明:高度网络成瘾人数高达42.43%、轻度网络成瘾人数达42.18%,而非网络成瘾人数所占比例只有15.38%... 详细信息

采用网络成瘾量表、孤独量表、人际关系诊断量表对贵州省403名大学生进行了调查,以探讨孤独感在网络成瘾与人际困扰间的中介作用。结果表明:高度网络成瘾人数高达42.43%、轻度网络成瘾人数达42.18%,而非网络成瘾人数所占比例只有15.38%;几所高校大学生在各量表得分上表现出网络成瘾与孤独感呈显著正相关,与人际关系困扰同样呈显著正相关;孤独感与人际关系困扰也呈显著正相关;中介效应检验提示,孤独感在网络成瘾和人际困扰间充当中介变量。

关键词：网络成瘾人际关系孤独感中介作用

双带教模式在我国首届助产专业本科生大二实习中的效果评价

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卫生职业教育 2023年第1期41卷 132-135页

作者：莫岑肖燕璇罗晨玲南方医科大学护理学院广东广州510515

目的探讨双带教模式在助产专业本科生早期实习中的应用效果。方法选取57名助产专业学生为研究对象,试验组由学院专任教师与科室临床教师共同带教,对照组采用传统临床教师带教模式。采用临床教学满意度调查问卷对学生进行调查;对4名参... 详细信息

目的探讨双带教模式在助产专业本科生早期实习中的应用效果。方法选取57名助产专业学生为研究对象,试验组由学院专任教师与科室临床教师共同带教,对照组采用传统临床教师带教模式。采用临床教学满意度调查问卷对学生进行调查;对4名参与带教的护理学院专任教师进行小组焦点访谈。结果试验组学生实习模式满意度调查和教学效果评价维度得分显著高于对照组(P<0.05)。小组焦点访谈共提炼出5个主题,双带教模式效果得到专任教师肯定。结论助产专业本科生对双带教模式满意度较高,有利于提高学生综合能力,可推广应用。

关键词：双带教模式助产专业实习本科生小组焦点访谈

Neuroprotective potential for mitigating ischemia-reperfusion-induced damage

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Neural Regeneration Research 2025年第8期20卷 2199-2217页

作者： Zi Ye Runqing Liu Hangxing Wang Aizhen Zuo cen Jin Nan Wang Huiqi Sun Luqian Feng Hua Yang The Clinical Medical College Guizhou Medical UniversityGuiyangGuizhou ProvinceChina Division of Infectious Diseases Department of Internal MedicinePeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina School of Medical Imaging Guizhou Medical UniversityGuiyangGuizhou ProvinceChina Division of Gastroenterology First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina The Second Clinical Medical College Lanzhou UniversityLanzhouGansu ProvinceChina Department of Neurosurgery Affiliated Hospital of Guizhou Medical UniversityGuiyangGuizhou ProvinceChina

Reperfusion following cerebral ischemia causes both structural and functional damage to brain tissue and could aggravate a patient's condition;this phenomenon is known as cerebral ischemia-reperfusion *** studies have elucidated the neuroprotective role of the sirtuin protein family(Sirtuins)in modulating cerebral ischemia-reperfusion ***,the potential of utilizing it as a novel intervention target to influence the prognosis of cerebral ischemia-reperfusion injury requires additional *** this review,the origin and research progress of Sirtuins are summarized,suggesting the involvement of Sirtuins in diverse mechanisms that affect cerebral ischemia-reperfusion injury,including inflammation,oxidative stress,blood-brain barrier damage,apoptosis,pyroptosis,and *** therapeutic avenues related to Sirtuins that may improve the prognosis of cerebral ischemia-reperfusion injury were also investigated by modulating Sirtuins expression and affecting representative pathways,such as nuclear factor-kappa B signaling,oxidative stress mediated by adenosine monophosphate-activated protein kinase,and the forkhead box *** review also summarizes the potential of endogenous substances,such as RNA and hormones,drugs,dietary supplements,and emerging therapies that regulate Sirtuins *** review also reveals that regulating Sirtuins mitigates cerebral ischemia-reperfusion injury when combined with other risk *** Sirtuins show promise as a potential target for the treatment of cerebral ischemiareperfusion injury,most recent studies are based on rodent models with circadian rhythms that are distinct from those of humans,potentially influencing the efficacy of Sirtuinstargeting drug ***,this review provides new insights into the role of Sirtuins in the pathology and treatment of cerebral ischemia-reperfusion injury.

关键词： apoptosis autophagy blood-brain barrier dietary supplements drug hormones inflammation neuroprotection oxidative stress prognosis pyroptosis reperfusion injury risk factors RNA therapeutics

A Compact Difference Scheme on Graded Meshes for the Nonlinear Fractional Integro-differential Equation with Non-smooth Solutions

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Acta Mathematicae Applicatae Sinica 2022年第3期38卷 601-613页

作者： Da-kang cen Zhi-bo WANG Yan mo School of Mathematics and Statistics Guangdong University of TechnologyGuangzhou 510006China

In this paper,a compact finite difference scheme for the nonlinear fractional integro-differential equation with weak singularity at the initial time is developed,with O(N^(-(2-α))+M^(-4))accuracy order,where N;M denote the numbers of grids in temporal and spatial direction,α ∈(0,1)is the fractional *** recover the full accuracy based on the regularity requirement of the solution,we adopt the L1 method and the trapezoidal product integration(PI)rule with graded meshes to discretize the Caputo derivative and the Riemann-Liouville integral,respectively,further handle the nonlinear term carefully by the Newton linearized *** on the discrete fractional Gr¨onwall inequality and preserved discrete coefficients of Riemann-Liouville fractional integral,the stability and convergence of the proposed scheme are analyzed by the energy *** results are also confirmed by a numerical example.

关键词： nonlinear fractional integro-differential equation graded meshes discrete fractional Gr?nwall inequality compact difference scheme stability and convergence

内蒙古哈民忙哈遗址史前居民牙齿微磨耗形态观察与研究

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边疆考古研究 2017年第2期 357-366页

作者：张全超李墨岑张群孙志超吉林大学边疆考古研究中心

一、引言牙齿微磨耗痕迹(dental microwear),是指口腔在咬合过程中,由于食物等颗粒破坏牙齿表面,在牙釉质上形成的不同大小、不同方向以及不同形态的磨耗痕迹的总称。由于这类痕迹过于细微,需要借助放大设备进行观察,因此被称为微磨耗... 详细信息

一、引言牙齿微磨耗痕迹(dental microwear),是指口腔在咬合过程中,由于食物等颗粒破坏牙齿表面,在牙釉质上形成的不同大小、不同方向以及不同形态的磨耗痕迹的总称。由于这类痕迹过于细微,需要借助放大设备进行观察,因此被称为微磨耗痕迹。因进食行为而产生的牙齿微磨耗痕迹多表现为条痕(scratch)和凹坑(pit)两种形态[1]。其形态差异是不同性状的食物颗粒和不同的下颌骨运动模式共同作用的结果[2]。

关键词：哈民忙哈遗址牙齿颊面塔斯马尼亚人磨耗形态内蒙古

Predictive value of a constructed artificial neural network model for microvascular invasion in hepatocellular carcinoma:A retrospective study

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 88-100页

作者： Hai-Yang Nong Yong-Yi cen Shan-Jin Lu Rui-Sui Huang Qiong Chen Li-Feng Huang Jian-Ning Huang Xue Wei Man-Rong Liu Lin Li Ke Ding Department of Radiology The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina Department of Radiology Affiliated Hospital of Youjiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Guangxi Clinical Medical Research center for Hepatobiliary Diseases Affiliated Hospital of Youiiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Department of Ultrasound The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina Department of Hepatobiliary Surgery The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina

BACKGROUND Microvascular invasion(MVI)is a significant risk factor for recurrence and metastasis following hepatocellular carcinoma(HCC)***,there is a paucity of preoperative evaluation approaches for *** To investigate the predictive value of texture features and radiological signs based on multiparametric magnetic resonance imaging in the non-invasive preoperative prediction of MVI in *** Clinical data from 97 HCC patients were retrospectively collected from January 2019 to July 2022 at our *** were classified into two groups:MVI-positive(n=57)and MVI-negative(n=40),based on postoperative pathological *** correlation between relevant radiological signs and MVI status was ***4.6 software and the mutual information method were employed to identify the top 10 dominant texture features,which were combined with radiological signs to construct artificial neural network(ANN)models for MVI *** predictive performance of the ANN models was evaluated using area under the curve,sensitivity,and *** models with relatively high predictive performance were screened using the DeLong test,and the regression model of multilayer feedforward ANN with backpropagation and error backpropagation learning method was used to evaluate the models’*** The absence of a pseudocapsule,an incomplete pseudocapsule,and the presence of tumor blood vessels were identified as independent predictors of HCC *** ANN model constructed using the dominant features of the combined group(pseudocapsule status+tumor blood vessels+arterial phase+venous phase)demonstrated the best predictive performance for MVI status and was found to be automated,highly operable,and very *** The ANN model constructed using the dominant features of the combined group can be recommended as a noninvasive method for preoperative prediction of HCC MVI status.

关键词： Hepatocellular carcinoma Texture analysis Magnetic resonance imaging Microvascular invasion Pseudocapsule Tumor blood vessels

9个引种鲜食葡萄品种的栽培性状及果实品质表现

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南方农业学报 2018年第6期49卷 1177-1182页

作者：梁世弦唐桓伟白扬成果甘振烁陆媚马广仁莫涔涔刘志忠王博陈孚仪广西大学农学院南宁530004 广西南宁相思葡萄农业科技有限公司南宁530007 广西农业科学院葡萄与葡萄酒研究所南宁530007

【目的】分析9个引种鲜食葡萄品种在南宁的栽培性状及其果实品质,为筛选适宜桂南地区栽培的鲜食葡萄品种提供参考依据。【方法】田间观察南宁引种的光辉、红巴拉多、着色香、早黑宝、里扎马特、金手指、摩尔多瓦、黄意大利和恋人等9个... 详细信息

【目的】分析9个引种鲜食葡萄品种在南宁的栽培性状及其果实品质,为筛选适宜桂南地区栽培的鲜食葡萄品种提供参考依据。【方法】田间观察南宁引种的光辉、红巴拉多、着色香、早黑宝、里扎马特、金手指、摩尔多瓦、黄意大利和恋人等9个鲜食葡萄品种的物候期和生长特性,测定分析其果实品质。【结果】黄意大利、光辉、摩尔多瓦和着色香表现出较好的生长适应性和结果习性,萌芽率和结果枝率均在80.0%以上,其余5个品种成花较困难,结果枝率低于60.0%。黄意大利的果实品质综合表现较好,可溶性固形物含量达17.36%,总糖含量达254.53 mg/m L;光辉的粒重为9.99 g,果粒大且串型整齐;着色香具有独特的香气;光辉、摩尔多瓦和着色香果实的可溶性固形物含量较低,约15.00%。【结论】黄意大利的栽培性状和果实品质综合表现最佳,可作为中晚熟品种在桂南地区推广种植;光辉、摩尔多瓦和着色香的栽培性状表现较好,其中光辉可作为早熟品种、摩尔多瓦可作为中晚熟品种在桂南地区适当推广种植,着色香可作为特色早熟品种搭配其他主栽品种少量种植;红巴拉多、早黑宝、里扎马特、金手指和恋人不宜在桂南地区推广种植。

关键词：鲜食葡萄引种栽培性状品质表现桂南地区

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图释西江平南县域内袁崇焕故里地理文化

广西师范学院学报（自然科学版） 2018年第4期35卷 124-130页

作者：黄天放陆建波闭应洲岑沫广西师范学院广西南宁530001 <文史春秋>杂志社广西南宁530021

历史名人的故居作为旅游资源开发,促进一方的社会经济更快发展已是不争的事实。争论近400年的历史人物袁崇焕的出生地广西藤县白马莲塘村的地理文化受到学者的关注。明朝被称为蛮荒之地的白马莲塘村,今天看来陆路交通仍处在较低的水平... 详细信息

历史名人的故居作为旅游资源开发,促进一方的社会经济更快发展已是不争的事实。争论近400年的历史人物袁崇焕的出生地广西藤县白马莲塘村的地理文化受到学者的关注。明朝被称为蛮荒之地的白马莲塘村,今天看来陆路交通仍处在较低的水平。当下在国家加快形成西江经济带,与北部湾经济区江海联动,互相促进,使增长极"核力"更加巨大的时代背景下,以西江为两地市交界的袁崇焕故里的南北两岸白马文化及演绎出的故事与文化逻辑值得深入研究。生活在这片土地的人们传承着当地的地理文化,这一小地方可以借助名人的符号关联历史文化,加大文化建设的力度,使之成为西江流域文化沉淀的一个承载点。借助图片更深入分析当地的地形地貌,为深度旅游者提供更深度的地理文化认知。

关键词：袁崇焕西江白马莲塘村地理文化