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枝状畴的形成及分形维数计算

物理学报 1999年第S1期48卷 250-256页

作者：李丹郑德娟周雁韩宝善中国科学院物理研究所磁学国家重点实验室北京100080 中国科学院低温实验技术中心北京100080

对于石榴石磁泡薄膜，提出了产生单个枝状畴（ＭＢＤ）的“低静态偏磁场法”．ＭＢＤ的形成是与其畴壁内垂直布洛赫线（ＶＢＬ）的形核相联系的．随着静态偏磁场Ｈｂ从“枝状膨胀的临界偏磁场”Ｈ［ｄ］的降低，相应的ＭＢＤ的... 详细信息

对于石榴石磁泡薄膜，提出了产生单个枝状畴（ＭＢＤ）的“低静态偏磁场法”．ＭＢＤ的形成是与其畴壁内垂直布洛赫线（ＶＢＬ）的形核相联系的．随着静态偏磁场Ｈｂ从“枝状膨胀的临界偏磁场”Ｈ［ｄ］的降低，相应的ＭＢＤ的畴形变得越来越复杂，伴随有几类硬磁泡的相继形成．对ＭＢＤ进行了分形研究，把线结构维数的计算应用于ＭＢＤ极其弯曲的畴壁结构，定量地描述了它们的弯曲和分枝程度，并与其畴壁内ＶＢＬ的形核联系起来．

关键词：枝状畴偏磁场分形硬磁畴线结构计盒维数双边界法垂直布洛赫线硬磁泡磁畴壁

中国城市数字经济对物流业碳排放的影响效应及传导机制

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中国环境科学 2024年第1期44卷 427-437页

作者：钟文杨俊郑明贵董娟严芝清江西理工大学经济管理学院江西赣州341000

在分析数字经济影响物流业碳排放机理的基础上,基于中国2011-2021年278个地级及以上城市的数据,采用非线性回归模型和分位数回归模型实证检验了数字经济对物流业碳排放的影响.研究表明:数字经济与物流业碳排放之间存在U型关系,且当前处... 详细信息

在分析数字经济影响物流业碳排放机理的基础上,基于中国2011-2021年278个地级及以上城市的数据,采用非线性回归模型和分位数回归模型实证检验了数字经济对物流业碳排放的影响.研究表明:数字经济与物流业碳排放之间存在U型关系,且当前处于U型的上半部分.作用机制检验发现,数字经济主要通过技术革新和要素配置效率改进两条路径显著降低物流业碳排放,同时,数字经济对物流业碳排放的影响存在空间溢出效应,且存在城市自身规模与资源禀赋的异质性;进一步分析发现,数字经济的发展对物流业的碳排放具有显著的抑制和进化作用,随着分位数的增加,数字经济发展对物流业碳减排的边际影响递减.

关键词：数字经济物流业碳排放技术革新要素配置效率

Effectiveness of a theory-based tailored mHealth physical activity intervention for women undergoing chemotherapy for breast cancer:A quasi-experimental study

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International Journal of Nursing Sciences 2024年第4期11卷 405-413页

作者： Zhaohui Geng Jingting Wang Weibo Lyu Xinyu Li Wenjia Ye Wei zheng juan Yang Li Ning Lingzhi Cai Ying Liu Yingting Zhang Fulei Wu Changrong Yuan School of Nursing Shanghai University of Traditional Chinese MedicineShanghaiChina School of Nursing Navy Medical UniversityShanghaiChina department of Breast Surgery Longhua HospitalShanghai University of Traditional Chinese MedicineShanghaiChina department of Breast Surgery Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina department of Nursing Hangzhou First People’s HospitalHangzhouChina department of Breast Surgery Hangzhou First People’s HospitalHangzhouChina department of Nursing Shanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina School of Nursing Fudan UniversityShanghaiChina

Objectives:This study aimed to explore the effectiveness of the theory-based tailored mHealth physical activity(PA)intervention among patients with breast cancer undergoing ***:A quasi-experimental study design was adopted.A total of 60 breast cancer patients were selected from two tertiary hospitals in Shanghai and Hangzhou City from September 2019 to August *** to the admission order,30 patients wereﬁrst included in the control group,followed by 30 patients in the intervention group.A smartphone application(app)named“Breast Care”was developed based on social cognitive theory,self-efﬁcacy theory,and the theory of planned *** app integrated various functions,including information browsing,PA monitoring and feedback,symptom reporting,and social *** in the intervention group received three months of personalized online PA guidance in addition to routine *** control group received routine *** and post-intervention investigations after three months were conducted in two groups using the Short Form of International Physical Activity Questionnaire,the Hospital Anxiety and depression Scale,and the Functional Assessment of Cancer TherapydBreast ***:After three months of intervention,compared to the control group,breast cancer patients in the intervention group showed signiﬁcant improvements in walking,moderate PA,and overall PA(Pdeclines in walking,moderate PA,and overall PA after three months(P<0.05).There were statistically differences between the two groups in scores for anxiety,overall quality of life,and its dimensions,such as physical well-being,emotional well-being,and additional breast cancer well-being(P<0.05).Conclusions:The theory-based tailored mHealth PA intervention has

关键词： Anxiety Breast cancer Chemotherapy depression Patients Physical activity Telemedicine

头孢他啶/阿维巴坦单用或与氨曲南联用对碳青霉烯类耐药肠杆菌目细菌的体内、外抗菌活性的比较

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中国感染控制杂志 2024年第10期23卷 1206-1212页

作者：卞丽娟郭俊哲郑美娟安徽医科大学第一附属医院检验科安徽合肥230022 蚌埠第五人民医院检验科安徽蚌埠233099 安徽医科大学临床医学院安徽合肥230032

目的了解头孢他啶/阿维巴坦(CZA)单用或与氨曲南(ATM)联合用药对耐碳青霉烯类肠杆菌目细菌(CRE)的体内、外抗菌活性,为临床抗感染治疗提供依据。方法采用微量肉汤稀释法对某院2018-2022年临床分离的52株非重复CRE进行CZA及ATM最低抑菌浓... 详细信息

目的了解头孢他啶/阿维巴坦(CZA)单用或与氨曲南(ATM)联合用药对耐碳青霉烯类肠杆菌目细菌(CRE)的体内、外抗菌活性,为临床抗感染治疗提供依据。方法采用微量肉汤稀释法对某院2018-2022年临床分离的52株非重复CRE进行CZA及ATM最低抑菌浓度(MIC)测定,采用棋盘稀释法进行联合药敏试验。时间-杀菌曲线和大蜡螟感染模型检测CZA单用或与ATM联合使用的杀菌效果。结果23株产KPC酶的CRE菌株中91.3%(21株)对CZA的MIC≤4μg/mL,8.7%(2株)的菌株对CZA的MIC≥128μg/mL。产NDM、IMP、KPC+IMP、KPC+NDM等酶型的29株CRE对CZA的MIC值均≥128μg/mL。31株CZA耐药的菌株中93.5%(29株)的CZA与ATM联合FIC值<0.5,6.5%(2株)的FIC在0~1。时间-杀菌曲线表明CZA对产KPC酶的菌株具有杀菌效果,CZA联合ATM对耐CZA菌株有杀菌效果。与单药组相比,CZA联合ATM处理组CRE感染大蜡螟生存率显著提高(中位生存时间120 h,P=0.001)。结论CZA对产KPC酶的细菌有较好的抗菌作用。CZA与ATM联用对CZA耐药的菌株具有协同抑菌作用。

关键词：头孢他啶/阿维巴坦氨曲南耐碳青霉烯类肠杆菌目细菌抗菌活性

Confirmation of a Sub-Saturn-size Transiting Exoplanet Orbiting a G Dwarf:TOI-1194 b and a Very Low Mass Companion Star: TOI-1251 B from TESS

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Research in Astronomy and Astrophysics 2024年第3期24卷 129-143页

作者： Jia-Qi Wang Xiao-Jun Jiang Jie zheng Hanna Kellermann Arno Riffeser Liang Wang Karen A.Collins Allyson Bieryla Lars A.Buchhave Steve B.Howell Elise Furlan Eric Girardin Joao Gregorio Eric Jensen Felipe Murgas Mesut Yilmaz Sam Quinn Xing Gao Ruo-Yu Zhou Frank Grupp Hui-juan Wang CAS Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy Of SciencesBeijing 10010China University of Chinese Academy of Sciences Beijing 100049China University Observatory Munich Scheinertrsse 1.D-81679 MunichGemany Max Planck Institute for Extraterrestrial Physics Giessenbachstr.1D-85748 GarchingGermany National Astronomical Observatories/Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing210042China CAS Key Laboratory of Astronomical Optics&Technology Nanjing Institute of Astronomical Optics&TechnologyNanjing 210042China Center for Astrophysics Harvard&Smithsonian60 Garden Street.CambridgeMA 02138USA National Space Institute Technical University of DenmarkElektrovejDK-2800 KgsLyngbyDenmark NASA Ames Research Center Moffett FieldCA 94035USA NASA Exoplanet Science Institute Caltech/IPACMail Code 100-221200 E.California Blvd.PasadenaCA91125USA Grand Pra Observatory Switzerland department of Physics Washington UniversitySt.LouisMO 63130.USA department of Physics and Astronomy Swarthmore CollegeSwarthmorePA 19081USA Instituto de Astrofísica de Canarias(IAC) E-38205 La Laguna.TenerifeSpain departamento de Astrofísica Universidad de La LagunaSpain dept.of Astronomy and Space Sciences Ankara UniversityTandogan 06100AnkaraTurkey Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Urumqi No.1 Senior High School Urumqi 830002China Lijiang Gemini Observatory Lijiang 674199China

We report the confirmation of a sub-Saturn-size exoplanet,TOI-1194 b,with a mass of about 0.456+0.055-0.051M_(J),and a very low mass companion star with a mass of about 96.5±1.5 MJ,TOI-1251 *** candidates provided by the Transiting Exoplanet Survey Satellite(TESS)are suitable for further follow-up observations by ground-based telescopes with small and medium *** analysis is performed based on data from several telescopes worldwide,including telescopes in the Sino-German multiband photometric campaign,which aimed at confirming TESS Objects of Interest(TOIs)using ground-based small-aperture and medium-aperture telescopes,especially for long-period ***-1194 b is confirmed based on the consistent periodic transit depths from the multiband photometric *** measure an orbital period of 2.310644±0.000001 days,the radius is 0.767+0.045-0.041RJ and the amplitude of the RV curve is 69.4_(-7.3)^(+7.9)m s^(-1).TOI-1251 B is confirmed based on the multiband photometric and high-resolution spectroscopic data,whose orbital period is 5.963054+0.000002-0.000001days,radius is 0.947+0.035-0.033 R_(J) and amplitude of the RV curve is 9849_(-40)^(+42)ms^(-1).

关键词： planets and satellites fundamental parameters-planets and satellites gaseous planets-stars fundamental parameters-stars low-mass-methods data analysis-techniques photometric-techniques spectroscopic

新媒体背景下河南红色文化与高职思政课程融合策略研究

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新闻研究导刊 2024年第7期15卷 123-125页

作者：郑娟河南开放大学马克思主义学院河南郑州450046

河南地处中原,从新民主主义革命到社会主义革命与建设,到改革开放和社会主义现代化建设,再到中国特色社会主义进入新时代,形成了深厚的红色文化底蕴,涌现出众多英雄人物与感人事迹。河南红色文化以大别山精神、焦裕禄精神、红旗渠精神... 详细信息

河南地处中原,从新民主主义革命到社会主义革命与建设,到改革开放和社会主义现代化建设,再到中国特色社会主义进入新时代,形成了深厚的红色文化底蕴,涌现出众多英雄人物与感人事迹。河南红色文化以大别山精神、焦裕禄精神、红旗渠精神等伟大精神为核心,蕴含丰富内涵,为河南的经济社会发展提供了强大的精神支撑。河南的红色文化,以博物馆、纪念馆、遗址遗迹等为载体,类型多样、形式齐全。文章分析新媒体时代背景下河南地域红色文化的精神内涵和文化传播特点,总结其融入高职思政课程对于促进大学生理想信念的形成、培养大学生的社会责任感、强化高职学校德育教育效果的重要意义,并在此基础上提出融入策略,以期增强青年学生对家乡的认同感和民族自豪感,将他们培养成能够自觉践行社会主义核心价值观的好青年。

关键词：新媒体河南地域红色文化高职思政课程

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原发性睾丸淋巴瘤的超声特征分析

中国临床医学影像杂志 2024年第2期35卷 109-111,119页

作者：顾秀娟张巍郑帅首都医科大学附属北京天坛医院超声科北京100070

目的:研究分析原发性睾丸淋巴瘤(Primary testicular lymphoma,PTL)的声像图特征。方法:回顾性分析经手术切除,病理证实的16例PTL的灰阶以及彩色多普勒声像图特征。结果:16例PTL,其中弥漫性大B细胞淋巴瘤14例,T细胞淋巴瘤1例,B淋巴母细... 详细信息

目的:研究分析原发性睾丸淋巴瘤(Primary testicular lymphoma,PTL)的声像图特征。方法:回顾性分析经手术切除,病理证实的16例PTL的灰阶以及彩色多普勒声像图特征。结果:16例PTL,其中弥漫性大B细胞淋巴瘤14例,T细胞淋巴瘤1例,B淋巴母细胞淋巴瘤1例。灰阶超声显示弥漫型11例,结节型5例,均为低回声;病灶内部回声均匀4例,内部回声不均匀12例;病灶边界清晰4例,边界不清晰12例。累及附睾3例,累及精索2例,1例伴腹股沟区以及腹膜后淋巴结肿大。彩色多普勒超声显示PTL大部分血流信号丰富,弥漫型均为Ⅲ级,结节型Ⅰ级(1例),Ⅱ级(2例),Ⅲ级(2例)。9例可见直线形血流信号。结论:PTL的声像图具有一定的特征,掌握其特征可提高PTL诊断准确率,为临床提供更多可靠信息。

关键词：睾丸肿瘤淋巴瘤超声检查,多普勒,彩色

Esophageal ulcer and multisystem inflammatory syndrome after COVID-19:A case report

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World Journal of Gastrointestinal Endoscopy 2024年第8期16卷 483-488页

作者： Ni Yang Zhen Liu Tong Jin Hai-Wei Xin Li Gu Yue zheng Hui-Xing Zhou Ning Li Xin-juan Liu department of Gastroenterology Beijing Chao-Yang HospitalCapital University of Medical ScienceBeijing 100020China department of Infectious Diseases and Clinical Microbiology Beijing Chao-Yang HospitalCapital University of Medical ScienceBeijing 100020China department of Surgical Intensive Care Unit Beijing Chao-Yang HospitalCapital University of Medical ScienceBeijing 100020China department of Hematology Beijing Chao-Yang HospitalCapital University of Medical ScienceBeijing 100020China

BACKGROUND Multisystem inflammatory syndrome in adults(MIS-A)is a rare but severe disease occurring several weeks after severe acute respiratory syndrome coronavirus 2 *** develops in adults with inflammation of different organs including the gastrointestinal tract,heart,kidneys,skin and hematopoietic *** SUMMARY We present a 58-year-old Chinese man diagnosed with *** chief complaints were fever,generalized fatigue and anorexia,accompanied with rashes on his *** examination showed cardiac,renal and liver *** had melena and gastroscopy indicated esophageal ulcer and severe *** blood and sputum culture did not show growth of bacteria or *** treatment was stopped due to unsatisfactory *** condition improved after prednisone and other supportive *** Gastrointestinal involvement in MIS-A is not *** involvement predominates,and esophageal involvement is rarely *** ulcer with bleeding could also be a manifestation of MIS-A.

关键词： Multisystem inflammatory syndrome Esophageal ulcer SARS-CoV-2 Gastrointestinal bleeding Case report

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新型冠状病毒抗体和小分子抑制剂的研究现状

生物化学与生物物理进展 2024年第4期51卷 754-771页

作者：武昕于汉杰包晓娟王雨姿李铮西北大学生命科学学院功能糖组学实验室西安710069

世界卫生组织已宣布新型冠状病毒感染(coronavirus disease 2019,COVID-19)的爆发为全球大流行。中和抗体和小分子抑制剂在预防及治疗COVID-19中发挥重要作用。尽管已开发出了多种中和抗体以及疫苗,但是随着病原体严重急性呼吸综合征冠... 详细信息

世界卫生组织已宣布新型冠状病毒感染(coronavirus disease 2019,COVID-19)的爆发为全球大流行。中和抗体和小分子抑制剂在预防及治疗COVID-19中发挥重要作用。尽管已开发出了多种中和抗体以及疫苗,但是随着病原体严重急性呼吸综合征冠状病毒2(severe acute respiratory syndrome coronavirus 2,SARS-CoV-2)的不断变异,现有的抗体及疫苗面临巨大的挑战。小分子抑制剂主要通过干扰病毒与宿主的结合以及病毒自身的复制达到消灭病毒以及抑制病毒感染的作用,并且对SARS-CoV-2突变株具有广谱抑制作用,是当前研究的热点。近年来国内外学者对SARS-CoV-2的小分子抑制剂做了大量的研究工作,本文根据中和抗体识别的抗原表位以及小分子抑制剂的作用机制分别对用于预防及治疗COVID-19的中和抗体和小分子抑制剂进行综述,讨论其研究现状,并展望小分子抑制剂的应用前景,以期为该领域的进一步研究提供参考。

关键词：新型冠状病毒感染严重急性呼吸系统综合征冠状病毒2 突变株中和抗体小分子抑制剂