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Apoptosis of lumbar spinal cord neurons in cauda equina syndrome rats

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Journal of Pharmaceutical Analysis 2010年第2期22卷 120-122页

作者： Si-yue Xu,xi-Jing He ,Hao-Peng Li,Jie ChenThe Second Orthopedic Department,the Second Affiliated Hospital,Medical School of xi’an Jiaotong University,xi’an 710004,China. Second Orthopedic Department Second Affiliated Hospital Medical School of Xi'an Jiaotong University Xi'an 710004 China

Objective To explore the law of apoptosis of lumbar spinal cord neurons in cauda equina syndrome (CES). Methods Cauda equina of rats was compressed by a piece of silica gel stick. From day 1 to day 28,the lumbar spinal cord specimens were harvested and assessed by Nissl’s staining and TUNEL staining. Results Compression of cauda equina caused lesion and apoptosis of neurons in lumbar spinal cord,and the extent of apoptosis reached the peak on 7th day after compression. Conclusion Apoptosis of neurons in lumbar spinal cord might be one of the reasons why patients with CES get poor prognosis.

关键词： cauda equina syndrome apoptosis lumbar spine

刚玉–Ti_(2)O_(3)共存物相在氧化气氛下的相变与形貌演变

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硅酸盐学报 2023年第3期51卷 589-593页

作者：郑清瑶孙加林李勇岳茜冯立马淑龙北京科技大学材料科学与工程学院北京100083 锦州国泰实业有限公司辽宁锦州121000 北京金隅通达耐火技术有限公司北京100041

刚玉-Ti_(2)O_(3)共存物相是通过调整低钛铁的冶炼工艺得到的一种冶金副产品,其中Al2O3和Ti_(2)O_(3)两相独立存在,可以作为耐火材料原料使用。通过热重–差热结合热力学分析得知原料中的Ti_(2)O_(3)在700℃左右开始氧化反应,Al2O3和TiO... 详细信息

刚玉-Ti_(2)O_(3)共存物相是通过调整低钛铁的冶炼工艺得到的一种冶金副产品,其中Al2O3和Ti_(2)O_(3)两相独立存在,可以作为耐火材料原料使用。通过热重–差热结合热力学分析得知原料中的Ti_(2)O_(3)在700℃左右开始氧化反应,Al2O3和TiO2在1263℃左右开始反应,将原料在不同温度空气气氛下保温3 h烧成,由XRD结合SEM结果可知在800℃左右Ti_(2)O_(3)完成氧化反应,在1300℃受钛酸铝分解反应的影响,只有部分TiO2和Al2O3在刚玉交界处反应生成片状Al2Ti O5。随着烧成温度升高至1400℃和1500℃,Al2O3和TiO2生成Al2TiO5的反应逐渐完成,在片状的基础上生成了典型的柱状的钛酸铝。

关键词：钛酸铝刚玉三氧化二钛耐火原料

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金融发展与农户杠杆率变动

华南农业大学学报（社会科学版） 2024年第4期23卷 106-119页

作者：乐章秦习岗中南财经政法大学哲学院湖北武汉430073 中南财经政法大学公共管理学院

农村数字金融正在改变农民的金融行为,对金融市场的稳定产生影响。利用数字普惠金融指数(2011—2015)和家庭金融调查数据(2015—2019),在省级层面探讨数字金融发展对农户杠杆率的长期影响。研究发现:数字金融通过增加家庭收入和促进合... 详细信息

农村数字金融正在改变农民的金融行为,对金融市场的稳定产生影响。利用数字普惠金融指数(2011—2015)和家庭金融调查数据(2015—2019),在省级层面探讨数字金融发展对农户杠杆率的长期影响。研究发现:数字金融通过增加家庭收入和促进合理消费,可以显著降低农户长期杠杆率。数字金融提升工商业收入、农业生产经营收入和非农就业收入的效果递减,三类收入降低农户杠杆率的作用递增。生存型和发展型消费能够增强家庭内生发展能力,同时改善家庭经济状况并减少债务负担。数字金融资源供给大于需要时,贫困农户的长期杠杆率不降反升。农村地区就业创业公共服务滞后,数字金融使用效益偏低,将推升贫困农户杠杆率。

关键词：数字普惠金融农户金融供给就业创业服务

基于资源共享与子系统交互的两阶段DEA评价方法——兼对我国“一流大学”科研绩效的评价

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中国管理科学 2022年第2期30卷 256-263页

作者：杨敏费锡玥魏宇琪梁樑合肥工业大学管理学院安徽合肥230009 过程优化与智能决策教育部重点实验室安徽合肥230009

由于复杂的竞争环境,共享资源下的交互系统组织形式变得越来越普遍,因此有必要开发一种新的方法来衡量这些系统与子系统的效率。针对复杂系统的绩效评价问题,本文提出资源共享与子系统交互的两阶段DEA评价方法予以应对。该方法在测定系... 详细信息

由于复杂的竞争环境,共享资源下的交互系统组织形式变得越来越普遍,因此有必要开发一种新的方法来衡量这些系统与子系统的效率。针对复杂系统的绩效评价问题,本文提出资源共享与子系统交互的两阶段DEA评价方法予以应对。该方法在测定系统总效率的基础上,运用Stackelberg博弈方法构建模型求解出唯一的子系统(阶段)效率。最后,将该方法应用于我国40所"一流大学"科研系统绩效评价中,评价结果反映出一定的科研系统特征,并验证了该方法的有效性。

关键词：资源共享交互系统两阶段 DEA

Observation of spectral lines in the exceptional GRB 221009A

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Science China(Physics,Mechanics & Astronomy) 2024年第8期67卷 187-206页

作者： Yan-Qiu Zhang Shao-Lin xiong Ji-Rong Mao Shuang-Nan Zhang Wang-Chen Xue Chao Zheng Jia-Cong Liu Zhen Zhang xi-Lu Wang Ming-Yu Ge Shu-Xu Yi Li-Ming Song Zheng-Hua An Ce Cai xin-Qiao Li Wen-xi Peng Wen-Jun Tan Chen-Wei Wang xiang-Yang Wen yue Wang Shuo xiao Fan Zhang Peng Zhang Shi-Jie Zheng Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Yunnan Observatories Chinese Academy of SciencesKunming 650011China Center for Astronomical Mega-Science Chinese Academy of SciencesBeijing 100012China Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of SciencesKunming 650216China College of Physics and Hebei Key Laboratory of Photophysics Research and Application Hebei Normal UniversityShijiazhuang 050024China Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing Guizhou Normal UniversityGuiyang 550001China College of Electronic and Information Engineering Tongji UniversityShanghai 201804China

As the brightest gamma-ray burst ever observed,GRB 221009A provided a precious opportunity to explore spectral line *** this article,we performed a comprehensive spectroscopy analysis of GRB 221009A jointly with GECAM-C and Fermi/GBM data to search for emission and absorption *** the first time we investigated the line feature throughout this GRB including the most bright part where many instruments suffered problems,and identified prominent emission lines in multiple time *** central energy of the Gaussian emission line evolves from about 37 to 6 MeV,with a nearly constant ratio(about 10%)between the line width and central ***,we find that both the central energy and the energy flux of the emission line evolve with time as a power law decay with power law index of–1 and–2,*** suggest that the observed emission lines most likely origin from the blue-shifted electron positron pair annihilation 511 ke V *** find that a standard high latitude emission scenario cannot fully interpret the observation,thus we propose that the emission line comes from some dense clumps with electron positron pairs traveling together with the *** this scenario,we can use the emission line to directly,for the first time,measure the bulk Lorentz factor of the jet(Γ)and reveal its time evolution(i.e.,Γ~t^(-1))during the prompt ***,we find that the flux of the annihilation line in the co-moving frame keeps *** discoveries of the spectral line features shed new and important lights on the physics of GRB and relativistic jet.

关键词： GRB GRB 221009A emission line

Normal pregnancy outcome after first-trimester exposure to semaglutide in an overweight woman: a case report

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Clinical Research Communications 2024年第2期7卷 30-33页

作者： xi-Mei Zhu Qian-Yun Huang yue Chen Ying Zhou Cai-Hua Yang Clinical Pharmacy Center Nanfang HospitalSouthern Medical UniversityGuangzhou 510515China Department of Pharmacy Baiyun Branch of Nanfang HospitalSouthern Medical UniversityGuangzhou 510599China

We reported a case of an overweight 34-year-old woman who unexpectedly became pregnant while undergoing semaglutide in early pregnancy and delivered a healthy male infant by caesarean section at 37 weeks and 4 days of *** now,the safety of semaglutide for use during pregnancy was *** report may contribute to the limited knowledge available on pregnant women exposure to semaglutide.

关键词： case report glucagon-like peptide-1 receptor agonist semaglutide normal pregnancy outcome

Radiomics-based quantitative contrast-enhanced CT analysis of abdominal lymphadenopathy to differentiate tuberculosis from lymphoma

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Precision Clinical Medicine 2024年第1期7卷 87-89页

作者： Meng-Ting Shen xi Liu yue Gao Rui Shi Li Jiang Jin Yao Department of Radiology West China HospitalSichuan UniversityChengdu 610041China Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education) Department of RadiologyPeking University Cancer Hospital and InstituteBeijing 100142China

Dear Editor,Tuberculosis(TB)is a significant cause of morbidity and mortality in developing countries,with a global burden of∼10.0 million cases in *** accounts for 8.4%of TB cases globally,ranking third after India and Indonesia[1].Abdominal TB is a common extrapulmonary manifestation,often presenting as *** differentiation between abdominal tuberculosis lymphadenopathy(ATBL)and lymphoma holds significance for treatment decisions and prognosis.

关键词： tuberculosis lymphoma abdominal

Association of cardiometabolic multimorbidity with all-cause and cardiovascular disease mortality among Chinese hypertensive patients

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Journal of Geriatric Cardiology 2024年第2期21卷 211-218页

作者： Luo-xi xiAO Zi-Yu WANG Jiang-Tao LI Hai-Mei WANG Yi-Ming HAO Pan ZHOU Yu-Lin HUANG Qiu-Ju DENG Yong-Chen HAO Na YANG Li-Zhen HAN Zhao YANG Ping-Ping JIA yue QI Jing LIU Center for Clinical and Epidemiologic Research Beijing Anzhen HospitalCapital Medical UniversityBeijing Institute of HeartLung and Blood Vessel DiseasesBeijing Municipal Key Laboratory of Clinical EpidemiologyBeijingChina

BACKGROUND Hypertension usually clusters with multiple ***,the association between cardiometabolic multimorbidity(CMM)and mortality in hypertensive patients is *** study aimed to investigate the association between CMM and all-cause and cardiovascular disease(CVD)mortality in Chinese patients with *** The data used in this study were from the China National Survey for Determinants of Detection and Treatment Status of Hypertensive Patients with Multiple Risk Factors(CONSIDER),which comprised 5006 participants aged 19–91 *** was defined as the presence of one or more of the following morbidities:diabetes mellitus,dyslipidemia,chronic kidney disease,coronary heart disease,and *** proportional hazard models were used to calculate the hazard ratios(HR)with 95%CI to determine the association between the number of CMMs and both all-cause and CVD *** Among 5006 participants[mean age:58.6±10.4 years,50%women(2509 participants)],76.4%of participants had at least one *** mortality rate was 4.57,4.76,8.48,and 16.04 deaths per 1000 person-years in hypertensive patients without any comorbidity and with one,two,and three or more morbidities,*** the fully adjusted model,hypertensive participants with two cardiometabolic diseases(HR=1.52,95%CI:1.09–2.13)and those with three or more cardiometabolic diseases(HR=2.44,95%CI:1.71–3.48)had a significantly elevated risk of all-cause *** findings were similar for CVD mortality but with a greater increase in risk *** In this study,three-fourths of hypertensive patients had *** with two or more comorbidities was associated with a significant increase in the risk of all-cause and cardiovascular mortality among hypertensive patients,suggesting more intensive treatment and control in this high-risk patient group.

关键词： hypertensive patients morbidity

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财政支农、数字普惠金融与农村居民消费升级

中国流通经济 2022年第9期36卷 60-70页

作者：岳喜优陈桂生天津师范大学政治与行政学院天津市300387

“双循环”新发展格局下,农村市场消费潜力不容忽视。强化财政政策支持、完善金融供给对释放农村消费潜力至关重要。基于2011—2019年中国31个省份(不含我国港澳台地区)面板数据,构建PVAR模型,从动态视角探究财政支农、数字普惠金融与... 详细信息

“双循环”新发展格局下,农村市场消费潜力不容忽视。强化财政政策支持、完善金融供给对释放农村消费潜力至关重要。基于2011—2019年中国31个省份(不含我国港澳台地区)面板数据,构建PVAR模型,从动态视角探究财政支农、数字普惠金融与农村居民消费升级之间的作用关系。从全国层面上看,财政支农对数字普惠金融发展和农村居民消费升级均存在负向影响,而数字普惠金融发展能够促进农村居民消费升级。从不同区域看,东部和中部地区的财政支农能够显著促进农村居民消费升级,而西部地区则相反;中部和西部地区的数字普惠金融能够促进农村居民消费升级,而东部地区则相反;中部和西部地区财政支农能够促进数字普惠金融发展,而东部地区的促进作用存在短期滞后现象。进一步,固定效应模型回归结果验证了PVAR模型实证得出的关于财政支农、数字普惠金融与农村居民消费升级之间作用关系结论的稳健性。推进农村消费扩容提质升级需要进一步加大财政支农力度并优化财政支农支出结构,实施差异化的数字普惠金融发展政策,构建财政金融协同支农机制。

关键词：财政支农数字普惠金融消费升级乡村振兴