检索结果-南通市图书馆

益视汤对脾气虚证兔视网膜脱离复位后视网膜组织形态的影响

在线全文

学校读者我要写书评

暂无评论

国际眼科杂志 2009年第12期9卷 2295-2297页

作者：张妍春王卉芳杨新光朱赛林毕春潮李亚芙中国陕西省西安市第四医院眼科 710004 中国陕西省西安市第四医院病理科 710004 西安古城眼科医院中国陕西省西安市710014 中国陕西省西安市第四医院检验科 710004

目的:观察中药益视汤对脾气虚证兔视网膜脱离(retinaldetachment,RD)自动复位后视网膜组织结构恢复的影响。方法:将健康成年新西兰灰兔26只随机分为脾气虚型RD自动复位组(A组)、益视汤治疗组(B组)及空白对照组(C组),采用耗气破气加饥饱... 详细信息

目的:观察中药益视汤对脾气虚证兔视网膜脱离(retinaldetachment,RD)自动复位后视网膜组织结构恢复的影响。方法:将健康成年新西兰灰兔26只随机分为脾气虚型RD自动复位组(A组)、益视汤治疗组(B组)及空白对照组(C组),采用耗气破气加饥饱失常法建立脾气虚证动物模型,在显微镜下行视网膜下注射透明质酸钠术建立视网膜脱离自动复位动物模型,用光学显微镜分别观察比较术后10,20,30d视网膜组织结构的变化。结果:B组较A组兔视网膜组织结构紊乱明显改善,细胞水肿变性明显减轻。结论:益视汤能减轻脾气虚证对视网膜脱离自动复位后各层组织细胞的不良影响。

关键词：益视汤脾气虚证视网膜脱离视网膜组织形态

Blow-Up Solution of the 3D Viscous Incompressible MHD System

在线全文

学校读者我要写书评

暂无评论

Journal of Partial Differential Equations 2020年第2期33卷 109-118页

作者： yang xin-guang SHI Wei LU Yongjin Department of Mathematics and Information Science Henan Normal UniversityXinxiang 453007China Department of Mathematics and Economics Virginia State UniversityPetersburgVA 23806USA

The 3D viscous incompressible magneto-hydrodynamic (MHD) system comprised by the 3D incompressible viscous Navier-Stokes equation couples with Maxwell *** global well-posedness of the coupled system is still an open *** this paper,we study the Cauchy problem of this coupled system and establish some logarithmical type of blow-up criterion for smooth solution in Lorentz spaces.

关键词： MHD equations blow-up criteria Lorentz space

Lattice Boltzmann method for simulating flows in open-channel with partial emergent rigid vegetation cover

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

Journal of Hydrodynamics 2019年第4期31卷 717-724页

作者： Zhong-hua yang Feng-peng Bai Wen-xin Huai Cheng-guang Li State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan University Wuhan 430072 China Changjiang Water Resources Protection Institute Wuhan 430051 China Shandong Provincial Key Laboratory of Water Resources and Water Environment Water Resources Research Institute of Shandong Province Jinan 250013 China

Flows in open-channel with partial emergent rigid vegetation cover are simulated using the lattice Boltzmann method (LBM) described by the 2-D nonlinear shallow water equations. The effect of vegetation is represented with the vegetation roughness coefficient, which is related to the vegetation density, diameter of the vegetation elements and drag coefficient. The model is verified by three numerical tests: flow in a 180° curved open channel with partial vegetation cover at the outer bank, flow in a rectangular channel with a finite patch of vegetation and flow in a rectangular channel with a vegetated bank. Numerical results are compared with the experimental data, and the good agreement proved that the presented model can model the vegetated channel flows correctly.

关键词： Open-channel flow rigid vegetation lattice Boltzmann method (LBM) shallow water equations vegetation roughness coefficient

The rough-toothed dolphin genome provides new insights into the genetic mechanism of its rough teeth

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

Integrative Zoology 2023年第4期18卷 601-615页

作者： xin HUANG Huizhong FAN Wenliang ZHOU guang yang Fuwen WEI CAS Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina Center for Evolution and Conservation Biology Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)GuangzhouChina

The rough-toothed dolphin(Steno bredanensis)is characterized by having teeth covered inﬁnely wrinkled vertical ridges,which is a general manifestation of amelogenesis *** rough surfaces are hypothesized to be an evolutionary morphological trait of feeding adaptation to increase the dolphin’s grip on ***,we assembled a rough-toothed dolphin genome and performed the comparative genomic analysis to reveal the genetic basis of the special *** showed that genes related to enamel development or dental diseases have undergone diver-siﬁed adaptive changes that may shape the special enamel morphology of this dolphin species,including positive selection(CLDN19,PRKCE,SSUH2,and WDR72),rapid evolution(LAMB3),or unique amino acid substitutions(AMTN,ENAM,MMP20,and KLK4).Meanwhile,the historical demography of rough-toothed dolphin indicated several distinct populationﬂuctuations associated with climate *** genome-wide heterozygosity of this dolphin is in the middle of all published data for *** the population is considerable,there may be population or subspecies differentiation,and with the global warming and the increasing disturbance of human activities,we should pay more attention to protection in the ***,our study brings new insights into the genetic mechanisms that may have driven the evolution of the special enamel morphology in rough-toothed dolphins and provides theﬁrst results of genetic heterozygosity and population historical dynamics of this species,which have important guiding implications for the conservation of this dolphin species.

关键词： adaptive evolution amelogenesis imperfecta cetaceans genome rough-toothed dolphin

Sulfuric acid leaching of high iron-bearing zinc calcine

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

International Journal of Minerals,Metallurgy and Materials 2017年第11期24卷 1211-1216页

作者： Jin-lin yang Ji-guang Liu Han-xin Xiao Shao-jian Ma College of Resources Environment and Materials Guangxi University Nanning 530004 China Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials Guangxi Zhuang Autonomous Region Guangxi University Nanning 530004 China

Sulfuric acid leaching of high iron-bearing zinc calcine was investigated to assess the effects of sulfuric acid concentration, liquid-to-solid ratio, leaching time, leaching temperature, and the stirring speed on the leaching rates of zinc and iron. The results showed that the sulfuric acid concentration, liquid-to-solid ratio, leaching time, and leaching temperature strongly influenced the leaching of zinc and iron, whereas stirring speed had little influence. Zinc was mainly leached and the leaching rate of iron was low when the sulfuric acid concentration was less than 100 g/L. At sulfuric acid concentrations higher than 100 g/L, the leaching rate of iron increased quickly with increasing sulfuric acid concentration. This behavior is attributed to iron-bearing minerals such as zinc ferrite in zinc calcine dissolving at high temperatures and high sulfuric acid concentrations but not at low temperatures and low sulfuric acid concentrations.

关键词： high iron-bearing zinc calcine sulfuric acid leaching zinc ferrite leaching rate

{411}<148> Texture in Thin-Gauge Grain-Oriented Silicon Steel

在线全文

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2016年第6期29卷 554-560页

作者： Cheng-Xu He Fu-Yao yang guang Ma xin Chen Li Meng School of Materials Science and Engineering University of Science and Technology Beijing Department of Electrical Engineering New Materials and Microelectronics State Grid Smart Grid Research Institute Beijing R&D Department East China Branch of Central Iron and Steel Research Institute

The significant occupancy of {411}〈148〉texture exists in the thin-gauge grain-oriented silicon steel(TGCRGO is defined that thickness of the sheet is〈0.25 mm and the reduction in cold rolling is more than 90%) which has been considered to have obviously effects on the abnormal growth of Goss-oriented grains during the secondary recrystallization process. The microstructures of the TG-CRGO were investigated by X-ray diffraction and electron back-scattered diffraction in this study. It was found that {411}〈148〉〉texture mainly exists in the center layer of hot-rolled as well as normalized *** the increase in cold rolling reduction, {411}〈148〉 orientation gradually rotates to a-fiber texture(〈110〉//RD).Finally, few {411}〈148〉would retain at the boundaries of deformed a-fiber grains(〈110〉//RD) as the reduction in cold rolling reaches 90%. After annealing treatment, a small amount of c-fiber textures(〈111〉//ND) preferably nucleates and recrystallizes between the DBs(deformation bands) at first; then, the {411}〈148〉 recrystallization texture occurs and mainly nucleates at the grains boundaries of the deformed a-fiber grains, and also quite a few {411}〈148〉orientation grains nucleate in the inner of {112}〈110〉grains. But this phenomenon was not observed in the {100}〈011〉deformation *** respect to the occurrence of {411}〈148〉recrystallization texture, it is mainly induced by strong a-fiber as well as weak c-fiber textures formed during cold rolling other than originating from {411}〈148〉 regions in hot bands.

关键词： Thin-gauge grain-oriented silicon steel(TG-CRGO) {411}〈148〉texture x-Fiber texture Recrystallization Electron back-scattered diffraction(EBSD)

Autophagy regulation combined with stem cell therapy for treatment of spinal cord injury

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2023年第8期18卷 1629-1636页

作者： Yao Shen Yi-Piao Wang xin Cheng Xuesong yang guang Wang Division of Histology and Embryology International Joint Laboratory for Embryonic Development&Prenatal MedicineMedical CollegeJinan UniversityGuangzhouGuangdong ProvinceChina Key Laboratory for Regenerative Medicine of the Ministry of Education Jinan UniversityGuangzhouGuangdong ProvinceChina

Stem cells are a group of cells with unique self-renewal and differentiation abilities that have great prospects in the repair of spinal cord injury. However, stem cell renewal and differentiation require strict control of protein turnover in the stem cells to achieve cell remodeling. As a highly conserved “gatekeeper” of cell homeostasis, autophagy can regulate cell remodeling by precisely controlling protein turnover in cells. Recently, it has been found that the expression of autophagy markers changes in animal models of spinal cord injury. Therefore, understanding whether autophagy can affect the fate of stem cells and promote the repair of spinal cord injury is of considerable clinical value. This review expounds the importance of autophagy homeostasis control for the repair of spinal cord injury from three aspects—pathophysiology of spinal cord injury, autophagy and stem cell function, and autophagy and stem cell function in spinal cord injury—and proposes the synergistic therapeutic effect of autophagy and stem cells in spinal cord injury.

关键词： autophagy chaperone-mediated autophagy embryonic stem cells induced pluripotent stem cells inflammation mesenchymal stem cells neural stem cells oxidative stress spinal cord injury

Rapid separation and identification of multiple constituents in Danhong Injection by ultra-high performance liquid chromatography coupled to electrospray ionization quadrupole time-of-flight tandem mass spectrometry

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Natural Medicines 2016年第2期14卷 147-160页

作者： ZHANG Qun-Qun DONG xin LIU xin-guang GAO Wen LI Ping yang Hua State Key Laboratory of Natural Medicines China Pharmaceutical University

To characterize and identify multiple constituents in Danhong injection(DHI), a fast ultra-high performance liquid chromatography coupled to electrospray ionization quadrupole time-of-flight tandem mass spectrometry(UHPLC-ESI-QTOF/MS) method was established and validated in the present study. A total of 63 compounds, including 33 phenolic acids, 2 C-glycosyl quinochalcones, 6 flavonoid O-glycosides, 4 iridoid glycosides, 6 organic acids, 5 amino acids, and 3 nucleosides, were identified or tentatively characterized. In conclusion, the UHPLC-ESI-QTOF/MS method is useful and efficient for in-depth structural elucidation of chemical compounds in complex matrices of herbal medicines such as DHI.

关键词： UHPLC-ESI-QTOF/MS Danhong Injection Radix Salviae Miltiorrhizae Flos Carthami tinctorii TCM Mass spectrometry

在线全文

学校读者我要写书评

暂无评论

非体外静脉转流猪原位肝移植术模型的研究

苏州大学学报（医学版） 2008年第6期28卷 933-936页

作者：邵文雨朱楠张海斌杨宁高广勇钱海鑫杨广顺第二军医大学东方肝胆外科医院胆二科上海200433 苏州大学附属第一医院普外科江苏苏州215006

目的探讨非体外静脉转流猪原位肝移植术模型的可行性。方法选用太湖猪种的梅山猪行无体外静脉转流条件猪原位肝移植术,观察供/受体手术情况;分别于无肝前期、无肝期、新肝期和关腹前进行血气分析和血电解质、凝血功能和部分生化指标测定... 详细信息

目的探讨非体外静脉转流猪原位肝移植术模型的可行性。方法选用太湖猪种的梅山猪行无体外静脉转流条件猪原位肝移植术,观察供/受体手术情况;分别于无肝前期、无肝期、新肝期和关腹前进行血气分析和血电解质、凝血功能和部分生化指标测定,记录平均动脉压、中心静脉压、心率,采用前后对照的方法,明确非体外静脉转流猪原位肝移植术不同时期主要存在的病理生理改变,探讨相应的处理原则。结果顺利完成非体外静脉转流猪原位肝移植术15例(手术成功率88.2%),受体肝移植手术过程中各重要生理指标变化较大,经积极有效的针对性处理后,除关腹前APTT和Fg仍异常(P<0.05)外,其他都恢复至基础水平。结论良好的手术技术,积极有效地防止和纠正内环境改变,是稳定建立非静脉转流猪原位肝移植术模型的关键因素;该模型与临床肝移植术的方法及要求基本一致,有很强的模拟性。

关键词：体外静脉转流原位肝移植术无肝期再灌注后综合征猪