检索结果-南通市图书馆

A Case of Acute HIV-1 and Monkeypox Coinfection After Condomless Insertive Anal Sex in the Previous 69 Days—Beijing Municipality,China,August-October,2023

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

China CDC weekly 2024年第7期6卷 126-130页

作者： Lin Jia han Jia Yuan fang Benyong Yan Mei Zhang Yang Zhang Wen Wang Caiping Guo Xiaojie Huang Tong Zhang Taiyi Jiang Clinical and Research Center for Infectious Diseases Beijing Youan HospitalCapital Medical UniversityBeijingChina

Summary What is already known about this topic?The prevalence of monkeypox(mpox)infections is primarily observed among young men who engage in sexual activities with other men,and there is a possibility of sexual ***-occurring sexually transmitted infections have also been *** is added by this report?In this report,we present a case of a patient in China who was simultaneously diagnosed with mpox,and acute human immunodeficiency virus(HIV)infection.

关键词： acute Acute prevalence

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

迎风格式在接触间断的数值耗散及其诱导误差

国防科技大学学报 2024年第1期46卷 51-62页

作者：韩芳魏雁昕刘君大连理工大学航空航天学院辽宁大连116024

在不同流场参数条件下对三种迎风格式在接触间断中的数值耗散问题进行了数值实验,并对数值耗散产生的机理进行了分析。数值计算结果和理论分析表明,矢通量分裂格式计算接触间断问题时,若流场静止或流场内存在亚声速区域,密度耗散的产生... 详细信息

在不同流场参数条件下对三种迎风格式在接触间断中的数值耗散问题进行了数值实验,并对数值耗散产生的机理进行了分析。数值计算结果和理论分析表明,矢通量分裂格式计算接触间断问题时,若流场静止或流场内存在亚声速区域,密度耗散的产生会诱导出以特征速度运动的数值扰动误差,该误差对数值耗散的大小无影响,但会影响流场的速度及压力参数分布,从而改变流场的结构。在二维问题中,诱导误差相互干扰会产生大量的复杂小尺度结构,给流场结构分析带来困难。同时,在密度参数线性分布的流场中,若空间离散格式重构的对象为对流通量,使用矢通量分裂格式计算流场会产生数值误差,使计算精度难以到达二阶。

关键词：迎风格式有限差分格式接触间断数值耗散数值误差

在线全文

学校读者我要写书评

暂无评论

祝融号火星车次表层探测雷达有效探测深度

科学通报 2024年第18期69卷 2674-2681页

作者：张领方向恺韩硕中山大学地球科学与工程学院珠海519080

2021年5月,中国首次火星探测任务“天问一号”携带祝融号火星车,成功着陆在乌托邦平原南部.祝融号火星车上搭载的次表层探测雷达(RoPeR)对于研究火星近表层精细结构和物理性质,以及了解是否赋存水冰提供了重要依据.深入研究祝融号火星... 详细信息

2021年5月,中国首次火星探测任务“天问一号”携带祝融号火星车,成功着陆在乌托邦平原南部.祝融号火星车上搭载的次表层探测雷达(RoPeR)对于研究火星近表层精细结构和物理性质,以及了解是否赋存水冰提供了重要依据.深入研究祝融号火星车次表层探测雷达的有效探测深度,将不仅帮助分析次表层探测雷达数据的有效性,而且还能表征近表层物质对电磁波的散射和吸收特征.本文首先基于祝融号火星车次表层探测雷达的探测参数,建立了有效探测深度与介电常数和损耗率的关系模型;其次,根据实测次表层探测雷达数据的相似性,确定有效信号深度;最后,通过祝融号火星车雷达的两个通道实际数据的能量衰减特性,计算出不同深度的损耗角正切值,与探测深度模型和有效信号深度进行匹配.祝融号火星车次表层探测雷达的有效探测深度研究,将帮助分析火星近表层物质成分,为我国深空探测助力.

关键词：祝融号火星车次表层探测雷达有效探测深度损耗角正切值

Theoretical analysis of the double-differential cross-sections of neutron,proton,deuteron,^(3)He,andαfor the p+^(6) Li reaction

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2024年第3期35卷 181-197页

作者： fang-Lei Zou Xiao-Jun Sun Jing-Shang Zhang Hai-Rui Guo Yin-Lu han Rui-Rui Xu Xi Tao Ji-Min Wang Xiao-Dong Sun Yuan Tian Tao Ye Yong-Li Xu Chun-Tian Liang College of Physics Guangxi Normal University541004 GuilinChina Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology 541004 GuilinChina China Institute of Atomic Energy P.O.Box 275(41)102413 BeijingChina Institute of Applied Physics and Computational Mathematics 10094 BeijingChina College of Physics and Electronic Shanxi Datong University037009 DatongChina School of Science Tianjin Chengjian University300384 TianjinChina

Based on the unified Hauser–Feshbach and exciton model,which can describe the particle emission processes between discrete energy levels with energy,angular momentum,and parity conservations,a statistical theory of light nucleus reaction(STLN)is developed to calculate the double-differential cross-sections of the outgoing neutron and light charged particles for the proton-induced^(6) Li reaction.A significant difference is observed between the p+^(6) Li and p+^(7) Li reactions owing to the discrepancies in the energy-level structures of the *** reaction channels,including sequential and simultaneous emission processes,are analyzed in *** the double-differential cross-sections of the outgoing proton as an example,the influence of contaminations(such as^(1) H,^(7)Li,^(12)C,and^(16)O)on the target is identified in terms of the kinetic energy of the first emitted *** optical potential parameters of the proton are obtained by fitting the elastic scattering differential *** calculated total double-differential cross-sections of the outgoing proton and deuteron at E_(p)=14 MeV agree well with the experimental data for different outgoing ***,the mixed double differential cross-sections of^(3) He andαare in good agreement with the *** agreement between the measured data and calculated results indicates that the two-body and three-body breakup reactions need to be considered,and the pre-equilibrium reaction mechanism dominates the reaction *** on the STLN model,a PLUNF code for the p+^(6) Li reaction is developed to obtain an ENDF-6-formatted file of the double-differential cross-sections of the nucleon and light composite charged particles.

关键词： Statistical theory of light nucleus reaction p+^(6)Li reaction Light composite charged particle Double-differential cross-sections Two-body breakup Three-body breakup

Trinuclear gold-catalyzed site-selective alkylation of peptides

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2024年

作者： Qingyun fang Chengyihan Gu Yinghan Chen Wencheng Yan Yong Liang Weipeng Li Chengjian Zhu Jie han Jin Xie State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Green Catalysis Center College of ChemistryZhengzhou University State Key Laboratory of Natural Medicines China Pharmaceutical University

Selective modification of peptides has always been a challenging *** selective alkylation of peptides can alter the biological activity and physical properties of molecules,and it has gained significant research *** herein disclose an intriguing gold-catalyzed alkylation of peptides using bench-stable unactivated alkyl bromides under photoredox catalysis.A wide range of structurally diverse primary,secondary and tertiary alkyl bromides serve as effective coupling partners to precisely connect with the α-C(sp3)–H in glycine residue of *** protocol demonstrates an exceptionally broad scope for alkyl halides and excellent tolerance for a wide range of useful functional groups.A series of relay transformations to construct cyclic peptides,to proceed click reaction and to realize peptide fluorescence labeling further enhance its synthetic *** addition,mechanistic studies and density functional theory (DFT) calculations reveal an inner-sphere and subsequent outersphere single electron transfer (SET) mechanism.

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

论刑事合规中的激励问题

河南社会科学 2024年第8期32卷 59-69页

作者：王充张晗吉林大学法学院吉林长春130012

目前由检察机关主导的刑事合规改革面临着涉案企业主动参与合规意愿不强、合规改革激励不足的问题。如何提高涉案企业参与合规改革的意愿以激励企业在诉讼过程中积极开展合规、转变企业被动监督的角色使其主动进行内部合规整改,是推进... 详细信息

目前由检察机关主导的刑事合规改革面临着涉案企业主动参与合规意愿不强、合规改革激励不足的问题。如何提高涉案企业参与合规改革的意愿以激励企业在诉讼过程中积极开展合规、转变企业被动监督的角色使其主动进行内部合规整改,是推进我国刑事合规改革进程的当务之急。改变由检察机关主导企业合规改革的现状、让涉案企业能够主动参与其中的关键在于解决刑事合规的激励机制问题。美国暂缓起诉协议制度通过检察机关与涉案企业的充分协商,激励涉重罪企业开展企业合规,在转变企业被动监督角色、促进深化内部合规改革方面值得我们借鉴。我国现行法中规定的诉讼程序暂时性中止及检察机关的撤回起诉权可以为建立暂缓起诉协议制度提供可能性,未来可以在与企业附条件不起诉制度并行适用的基础上构建暂缓起诉程序。

关键词：企业合规合规激励暂缓起诉协议

内蒙古草原优势物种光合速率对极端干旱的响应

在线全文

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2024年第3期17卷 5-15页

作者： Yalong Shi Yuanbo Cao Honghui Wu chong Xu Qiang Yu Xiaoan Zuo Xingguo han Melinda D.Smith Alan K.Knapp Chengjie Wang Guodong han State Key Laboratory of Effcient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China Key Laboratory of Arable Land Quality Monitoring and Evaluation Ministry of Agriculture and Rural AffairsInstitute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China China Rida Investment and Development Group Corp Ltd Beijing 100040China School of Grassland Science Beijing Forestry UniversityBeijing 100083China Urat Desert-grassland Research Station Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China Department of Biology and Graduate Degree Program in Ecology Colorado State UniversityFort CollinsCO 80523USA College of Grassland Resource and EnvironmentalInner Mongolia Agricultural UniversityHohhot 010011China

评估极端干旱对优势植物物种光合速率(Pn)的影响对于我们理解极端干旱影响生态系统功能的机制至关重要。极端干旱可能由降雨量减少或降雨频率减少造成。这两种不同模式的极端干旱可能造成不同的影响。此外,不同草原类型可能对这两种极... 详细信息

评估极端干旱对优势植物物种光合速率(Pn)的影响对于我们理解极端干旱影响生态系统功能的机制至关重要。极端干旱可能由降雨量减少或降雨频率减少造成。这两种不同模式的极端干旱可能造成不同的影响。此外,不同草原类型可能对这两种极端干旱模式表现出不同的敏感性。然而,目前尚不清楚这两种极端干旱模式对草原优势植物物种Pn的影响有何差异,以及在不同草原类型这两种不同模式的极端干旱的效应是否改变。为此,我们于2014年在内蒙古草原两个不同类型的草原(荒漠草原vs.典型草原)站点各进行了一项多年的极端干旱(CHR:将生长季期间每次降雨事件的降雨量减少66%***:完全排除生长季内一段较短时间的降水)模拟实验。于2017年的7月和8月,我们在这两个草原站点各测量了两种优势物种的Pn。结果发现,CHR和INT均显著降低了优势物种的Pn。无论草原类型如何,INT对Pn造成的负面影响都更大。在荒漠草原,极端干旱对Pn的负面影响普遍大于典型草原,尤其是对于CHR处理下的羊草(Leymus chinensis)。这些结果表明,与降雨量减少相比,降雨频率减少所引起的极端干旱对Pn的负面影响更大。草地类型可能会改变极端干旱模式效应的程度,但不会改变其方向。这些发现强调了应对未来极端干旱的草原生态系统管理应考虑极端干旱模式和草地类型的影响。

关键词：极端气候荒漠草原典型草原极端干旱模式季节性干旱

情绪智力在护士工作核心能力和抑郁间的中介作用

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华行为医学与脑科学杂志 2024年第1期33卷 57-63页

作者：王冲韩布新首都医科大学附属北京世纪坛医院胃肠肿瘤外科北京100038 中国科学院心理健康重点实验室(心理研究所) 北京100101

目的探讨护士核心能力、情绪智力和抑郁的关系。方法2020年12月至2021年2月,采用一般资料调查表、注册护士核心能力量表、情绪智力量表、精神障碍基础护理评估量表对505名临床护士进行横断面调查。基于SPSS 23.0软件建立数据库,进行Pear... 详细信息

目的探讨护士核心能力、情绪智力和抑郁的关系。方法2020年12月至2021年2月,采用一般资料调查表、注册护士核心能力量表、情绪智力量表、精神障碍基础护理评估量表对505名临床护士进行横断面调查。基于SPSS 23.0软件建立数据库,进行Pearson相关分析,采用宏程序PROCESS V3.4.1中Model 4进行中介效应分析。结果护士抑郁得分为(12.42±5.83)分,性别、婚姻状态、自觉护患关系各水平抑郁得分差异有统计学意义(F/t=3.060,2.678,3.210,均P<0.05)。核心能力[(149.72±54.87)分]与情绪智力[(82.42±15.62)分]呈正相关(r=0.967,P<0.01),核心能力、情绪智力与抑郁得分呈负相关(r=-0.931,-0.928,均P<0.01)。护士核心能力负向预测护士抑郁水平(β=-0.528,P<0.01),自我情绪的评估与表达能力、对他人情绪的识别和评估能力、自我情绪管理能力起部分中介作用,效应量分别为49.257%(-0.199/-0.404),16.089%(-0.065/-0.404)和27.228%(-0.110/-0.404)。结论护士核心能力是影响其抑郁水平的主要因素,情绪智力起部分中介作用,提高护士核心能力和情绪智力可降低其抑郁水平。

关键词：护士核心能力情绪智力抑郁中介作用

A Communication Theory Perspective on Prompting Engineering Methods for Large Language Models

在线全文

学校读者我要写书评

暂无评论

Journal of Computer Science & Technology 2024年第4期39卷 984-1004页

作者： Yuan-Feng Song Yuan-Qin He Xue-fang Zhao han-Lin Gu Di Jiang Hai-Jun Yang Li-Xin Fan AI Group WeBank Co.LtdShenzhen 518000China

The springing up of large language models(LLMs)has shifted the community from single-task-orientated natural language processing(NLP)research to a holistic end-to-end multi-task learning *** this line of research endeavors in the area,LLM-based prompting methods have attracted much attention,partially due to the technological advantages brought by prompt engineering(PE)as well as the underlying NLP principles disclosed by various prompting *** supervised learning usually requires training a model based on labeled data and then making *** contrast,PE methods directly use the powerful capabilities of existing LLMs(e.g.,GPT-3 and GPT-4)via composing appropriate prompts,especially under few-shot or zero-shot *** the abundance of studies related to the prompting and the ever-evolving nature of this field,this article aims to 1)illustrate a novel perspective to review existing PE methods within the well-established communication theory framework,2)facilitate a better/deeper understanding of developing trends of existing PE methods used in three typical tasks,and 3)shed light on promising research directions for future PE methods.

关键词： prompting method large language model communication theory