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First Asian fossil record of Platydictya (Amblystegiaceae) from the lower Miocene and its paleoenvironmental significance

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Frontiers of Earth Science 2023年第1期17卷 351-360页

作者： Liyan GUO Liang xiAO Ya LI xi.ngchuan LI Qin LEng Nan SUN Junfeng GUO Chaofeng fu Jianan WAng Deshuang JI College of Earth Sciences and Resources&Key Laboratory of Western Mineral Resources and Geological Engineering(the Ministry of Education) Chang᾽an UniversityXi᾽an 710054China State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China Laboratory for Terrestrial Environments Bryant UniversitySmithfieldRI 02917USA Shaanxi Key Laboratory of Early Life and Environments&State Key Laboratoty of Continental Dynamics Northwest UniversityXi᾽an 710069China

Mosses form a diverse land plant group in modern vegetation but have rarely showed up in the fossil record compared with vascular plants. Here, we report an extraordinarily-preserved early Miocene moss fossil from the lower Laoliangdi Formation in the Pingzhuang Coal Mine in Chifeng, Inner Mongolia Autonomous Region, northern China. Although lacking rhizoids and most reproductive organs, the well-preserved fossil allows us to assign it to Platydictya cf. jungermannioides (Amblystegiaceae) based upon its detailed gross and micro-morphology. The diagnostic characteristics include a small-sized body with slender stems bearing spirally arranged ovate-lanceolate leaves that lack costae. Leaf margins are mostly partly entire and partly dentate, a few dentate, and rarely completely entire. It represents the first fossil record of Platydictya in Asia. The specific living microenvironment of the extant P. jungermannioides enriched our understanding of the early Miocene environment that was previously based upon vascular plant fossils and sedimentary lithofacies in the area. Our early Miocene Platydictya cf. jungermannioides fossil lived in a warm and humid lush forest with a dense understory that received adequate water supplies.

关键词： moss the Pingzhuang Coal Mine Inner Mongolia Platydictya paleoenvironment

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The Association between Interpersonal Relationship and Erectile Dysfunction of Middle-Aged and Elderly Men in a Rural Area of Zhejiang,China

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Reproductive and Developmental Medicine 2018年第2期2卷 111-115页

作者： qun-Feng Liang xiao-Hua Yu Shu-Cheng Zhang Jian-Hui Li Jing Zhao Jun-Biao Zheng Yi-Hua Gu Wei-Jin Zhou Guo-Qing Liang Qian-xi Zhu Department of Epidemiology School of Public HealthFudan UniversityShanghai 200030China Department of Reproductive Epidemiology and Social Science Key Laboratory of Reproduction Regulation of NPFPCSIPPRIRDFudan UniversityShanghai 200030China Department of Urology The First People’s Hospital of JiashanJiaxingZhejiang 314000China Department of Cell Biology National Research Institute of Family PlanningBeijing 100191China Department of Cardiology The Key Laboratory of Cardiovascular DiseaseThe First Hospital of Lanzhou UniversityLanzhou 730050China Department of Andrology The Seventh People’s Hospital of Shanghai University of TCMShanghai 200120China

Objective:To explore the association between interpersonal relationship and erectile dysfunction(ED)of middle-aged and elderly ***:A population-based cross-sectional research was conducted in the rural area of Jiashan County,Zhejiang Province,in ***-aged and elderly men(aged 40-80)were selected as study *** face-to-face questionnaire was collected,including basic information,lifestyles,interpersonal relationship,and sexual *** interpersonal relationship was evaluated based on marital relationship,neighborhood relationship,and relatives/friends *** to the International index of erectile function,the study participants were divided into ED group(mild ED,moderate-to-severe ED),and non-ED *** were evaluated between interpersonal relationship indices and the prevalence or the severity of *** confounders were adjusted by the logistical regression ***:There were 674 study participants with average age of 60.4±8.5 years,and 489 ED patients with prevalence of 72.6%.With age increasing,the prevalence and the severity of ED increased *** men who could get help from spouse when an emergency occurred or who were more cared about by their neighbors had lower ED risk,and odds ratios(ORs)(95%confidence intervals[CIs])were 0.23(0.13-0.42)and 0.58(0.46-0.75),*** the adjustment of the covariates(age,education degree,household income,smoking,and drinking),the ORs(95%CIs)were 0.29(0.14-0.60)and 0.54(0.39-0.74),*** marital relationship and good neighborhood relationship were associated with a less severity of ED.

关键词： Erectile Dysfunction Interpersonal Relationship Marital Relationship Middle-Aged and Elderly Men

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中古《诸病源候论》疫疠观及后世内涵变迁

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医学与哲学 2021年第4期42卷 64-67页

作者：付鹏王育林周立群北京中医药大学中医学院北京102488 北京中医药大学国学院北京102488

隋代敕修的病候学专著《诸病源候论》的疫疠病候与伤寒病、时气病、热病和温病等并列论述,厘清了汉以前瘟疫、疫疠混称的局面。从而在中古时期官方医学语词意涵下,疫疠病候在瘟疫范畴中具备专门含义。随着后世医学认识的变迁,使得近现... 详细信息

隋代敕修的病候学专著《诸病源候论》的疫疠病候与伤寒病、时气病、热病和温病等并列论述,厘清了汉以前瘟疫、疫疠混称的局面。从而在中古时期官方医学语词意涵下,疫疠病候在瘟疫范畴中具备专门含义。随着后世医学认识的变迁,使得近现代辞书不能准确阐释《诸病源候论》的疫疠病候,故有必要对其进行疏义并简要纵览后世内涵变迁。由此可知,不同时代医书的疾病名称分类变化,反映着相关疾病的学术流变。因而研究疾病的相关学术脉络,观照疾病名称概念的历史流动性,才能更加准确地使用古代医学文献中的疾病语词,更为客观地还原时情时景。

关键词：瘟疫疫病训诂疫病史

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基于最小费用流建模的目标跟踪器研究与仿真

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工程科学学报 2015年第2期37卷 250-254页

作者：奚峥皓赵宝永刘贺平刘涛孙富春北京科技大学自动化学院北京100083 清华大学智能技术与系统国家重点实验室北京100084

针对目标跟踪中的物体遮挡、光照影响、杂波扰动等问题,设计一种基于最小费用流建模的跟踪器.该跟踪器把整数规划与最小费用流模型相结合,将目标跟踪问题转变为可解的线性规划问题.与其他同类型跟踪器相比,该跟踪器具有更好的跟踪准确性... 详细信息

针对目标跟踪中的物体遮挡、光照影响、杂波扰动等问题,设计一种基于最小费用流建模的跟踪器.该跟踪器把整数规划与最小费用流模型相结合,将目标跟踪问题转变为可解的线性规划问题.与其他同类型跟踪器相比,该跟踪器具有更好的跟踪准确性.实验结果表明:运用最小费用流模型的跟踪器可以对复杂环境下的多个目标进行稳定跟踪,提升了跟踪的鲁棒性.

关键词：目标跟踪建模线性规划机器视觉

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Zinc finger and BTB domain-containing protein 46 is essential for survival and proliferation of acute myeloid leukemia cell line but dispensable for normal hematopoiesis

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Chinese Medical Journal 2020年第14期133卷 1688-1695页

作者： Yuan-Yuan Liu Fei-Fei xiao Bi-Jie Yang xi Li Shuang-Nian Xu Zhi-Wei Chen Ping Li Yong-xiu Huang Xue-Mei fu xing-Qin Huang Guang-Ling Zheng Jie-Ping Chen Yu Hou Department of Hematology Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China Children's Hospital of Chongqing Medical University Chongqing 400014China Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases College of Traditional Chinese MedicineChongqing Medical UniversityChongqing 400016China Department of Radiology Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China

Background:Zinc finger and BTB domain-containing protein 46(Zbtb46)is a transcription factor identified in classical dendritic cells,and maintains dendritic cell quiescence in a steady ***46 has been reported to be a negative indicator of acute myeloid leukemia(AML).We found that Zbtb46 was expressed at a relatively higher level in hematopoietic stem and progenitor cells(HSPCs)compared to mature cells,and higher in AML cells compared to normal bone marrow(BM)***,the role of Zbtb46in HSPCs and AML cells remains ***,we sought to elucidate the effect of Zbtb46 in normal hematopoiesis and AML ***:We generated Zbtb46^fl/fl and Zbtb46^fl/fl Mx1-Cre *** deletion of Zbtb46 in Zbtb46^fl/fl Mx1-Cre mice was induced by intraperitoneal injection of double-stranded poly(I).poly(C)(poly(I:C)),and referred as Zbtb46 *** confirming the deletion of Zbtb46,the frequency and numbers of HSPCs and mature blood cells were analyzed by flow *** intraperitoneal injection of 5-fluorouracil was administrated to determine the repopulation ability of HSCs from Zbtb46^fl/fl and Zbtb46 cKO *** correlation between Zbtb46 expression and prognosis was analyzed using the data from the Cancer Genome *** investigate the role of Zbtb46 in AML cells,we knocked down the expression of Zbtb46 in THP-1 cells using lentiviral vectors expressing small hairpin RNAs targeting *** proliferation rate was determined by cell count *** apoptosis and bromodeoxyuridine incorporation were determined by flow ***:The percentages and absolute numbers of HSPCs and mature blood cells were comparable in Zbtb46 cKO mice and its Zbtb46^fl/fl littermates(Zbtb46^fl/fl ***46 cKO,HPC:801,310±84,282 vs.907,202±97,403,t=0.82,P=0.46;LSK:86,895±7802 vs.102,210±5025,t=1.65,P=0.17;HSC:19,753±3116 vs.17,608±3508,t=0.46,P=0.67).The repopulation ability of HSCs from Zbtb46^fl/fl Mx1-Cre mice was similar to those from Zbtb46^fl/fl cont

关键词： Zbtb46 transcription factor AML Hematopoietic stem cells

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小麦茎秆的拉弯性能研究

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河南农业科学 2007年第7期36卷 28-30,34页

作者：胡婷焦群英付志一中国农业大学北京100083

以成熟期的京冬八号小麦茎秆为研究对象，分正常施肥和未施肥2个组，进行了不同节间茎的拉伸和弯曲性能试验。结果表明，小麦茎弹性模量值在2．371～2．604Gpa，叶鞘的弹性模量值在1.246～1．391Gpa。带叶鞘小麦茎的抗弯刚度在0．0067～... 详细信息

以成熟期的京冬八号小麦茎秆为研究对象，分正常施肥和未施肥2个组，进行了不同节间茎的拉伸和弯曲性能试验。结果表明，小麦茎弹性模量值在2．371～2．604Gpa，叶鞘的弹性模量值在1.246～1．391Gpa。带叶鞘小麦茎的抗弯刚度在0．0067～0．0104Nm^2。

关键词：小麦茎秆叶鞘弹性模量抗弯刚度

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Antioxidant induced bulk passivation for efficient and stable hole transport layer-free carbon electrode perovskite solar cells

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Chinese Chemical Letters 2023年第6期34卷 219-224页

作者： Yetai Cheng Qingbo Wei Nannan Wang Zhangwen Ye Yanbin Zhao Qiongyao Wang Depeng Chu Lingxing Zan Feng fu Yucheng Liu Key Laboratory of Chemical Reaction Engineering of Shaanxi Province College of Chemistry&Chemical EngineeringYan’an UniversityYan’an 716000China Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy TechnologyInstitute for Advanced Energy MaterialsSchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710062China

Defect passivation is one of the important strategies to improve the efficiency and stability of perovskite solar *** this work,2,6-di-tert-butyl-4-methylphenol(BHT)as antioxidant was introduced into the perovskite precursor solution to improve the quality of the prepared perovskite films,so that these films performed a larger and uniform grain ***,the-OH functional group in BHT interacts with I-,thus reducing the density of defect states and inhibiting the non-radiative *** presence of hydrophobic groups in BHT protects the film from moisture erosion and improves the long-term stability of PSCs *** maximum photoelectric conversion efficiency of the constructed ITO/SnO_(2)/BHTMAPbI_(3)/Carbon device is 16.88%,and the unpackaged cell maintains the initial efficiency of 99.3%after698 h of storage under the environmental condition of 30%*** work provides an efficient approach to improve the performance of printable hole transport layer-free carbon electrode perovskite solar cells.

关键词： Perovskite solar cells Additive engineering Defect passivation Long-term stability Carbon electrode

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基于自适应T-CFSFDP的MMC开路故障定位方法

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电力电子技术 2023年第8期57卷 117-122页

作者：李群邓富金林金娇孔欢国网江苏省电力有限公司电力科学研究院江苏南京211103 东南大学电气工程学院江苏南京210096

模块化多电平变流器(MMC)含有大量子模块(SM),及时定位开关器件发生开路故障的SM是MMC系统可靠运行的关键问题之一。这里根据故障SM和正常SM之间电容电压变化的差异性,采用基于自适应截断平均数的快速搜索与发现密度峰值聚类算法(T-CFSF... 详细信息

模块化多电平变流器(MMC)含有大量子模块(SM),及时定位开关器件发生开路故障的SM是MMC系统可靠运行的关键问题之一。这里根据故障SM和正常SM之间电容电压变化的差异性,采用基于自适应截断平均数的快速搜索与发现密度峰值聚类算法(T-CFSFDP),可有效定位MMC中的SM开路故障。所提出的故障定位方法不需要创建复杂的数学模型和手动设置经验阈值,也不需要大量的训练数据样本,可有效定位故障SM。仿真和实验结果表明,提出的基于T-CFSFDP的MMC中SM开路故障定位方法能够快速有效定位开路故障的SM。

关键词：模块化多电平变流器开路故障定位聚类算法电容电压

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Activatable fluorescent probes for imaging and diagnosis of rheumatoid arthritis

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Military Medical Research 2024年第2期11卷 287-307页

作者： Pan Luo fu-Qiang Gao Wei Sun Jun-You Li Cheng Wang Qing-Yu Zhang Zhi-Zhuo Li Peng Xu Department of Joint Surgery Honghui HospitalXi'an Jiaotong UniversityXi'an 710054China Department of Orthopedics China-Japan Friendship HospitalBeijing 100029China Department of Orthopaedic Surgery of the Perelman School of Medicine University of PennsylvaniaPhiladelphiaPA 19104USA School of Mechanical Engineering Sungkyunkwan UniversitySuwon 16419South Korea Department of Orthopaedic Surgery Peking University Third HospitalPeking UniversityBeijing 100191China Department of Orthopedics Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021China State Key Laboratory of Pharmaceutical Biotechnology Division of Sports Medicine and Adult Reconstructive SurgeryDepartment of Orthopedic SurgeryNanjing Drum Tower Hospitalthe Affiliated Hospital of Nanjing University Medical SchoolNanjing 210008China

Rheumatoid arthritis(RA)is a systemic autoimmune disease that is primarily manifested as synovitis and polyarticular opacity and typically leads to serious joint damage and irreversible disability,thus adversely affecting locomotion ability and life ***,good prognosis heavily relies on the early diagnosis and effective therapeutic monitoring of *** fluorescent probes play vital roles in the detection and imaging of biomarkers for disease diagnosis and in vivo ***,we review the fluorescent probes developed for the detection and imaging of RA biomarkers,namely reactive oxygen/nitrogen species(hypochlorous acid,peroxynitrite,hydroxyl radical,nitroxyl),pH,and cysteine,and address the related challenges and prospects to inspire the design of novel fluorescent probes and the improvement of their performance in RA studies.

关键词： Rheumatoid arthritis Fluorescent probe Imaging Diagnosis Biomarker

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铝基体上定向碳纳米棒阵列膜的制备

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南昌大学学报（理科版） 2005年第3期29卷 242-246页

作者：江春喜扶名福涂江平黄菊花南昌大学机电工程学院江西南昌330029 浙江大学材料科学与工程系浙江杭州310027

采用两步阳极氧化法在铝基体上制备多孔阳极氧化铝(AAO)薄膜,然后在其上有序纳米孔中电化学沉积过渡金属Co作为催化剂,通过催化化学气相沉积(CCVD)法制备出高度有序的定向碳纳米棒阵列。利用场发射SEM、Raman光谱仪、XRD及高分辨率TEM... 详细信息

采用两步阳极氧化法在铝基体上制备多孔阳极氧化铝(AAO)薄膜,然后在其上有序纳米孔中电化学沉积过渡金属Co作为催化剂,通过催化化学气相沉积(CCVD)法制备出高度有序的定向碳纳米棒阵列。利用场发射SEM、Raman光谱仪、XRD及高分辨率TEM等方法表征及分析定向碳纳米棒阵列膜的表面形貌和微观结构。实验结果表明:铝基体上AAO薄膜的孔洞为六边形蜂窝状结构且大小均匀,孔径约为85nm,孔洞密度为1.16×1010/cm2;制备出的定向碳纳米棒排列高度有序,直径与模板上的孔洞基本一致,且主要呈现非晶态结构。

关键词：铝基体定向碳纳米棒阵列膜微观结构

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