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基于PI方法的华北2019年以来3次M_(S)≥5.0地震回溯性预测研究
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作者 宋程 张永仙 +4 位作者 夏彩韵 毕金孟 张小涛 吴永加 徐小远 《地震》 CSCD 北大核心 2024年第2期120-134,共15页
本文应用图像信息(PI)方法对2023年山东平原M_(S)5.5地震、2021年江苏大丰海域M_(S)5.0地震和2020年河北古冶M_(S)5.1地震进行了回溯性预测研究。以华北局部(32°N~42°N,114°E~122°E)为研究区域,在网格尺度分别为0.5... 本文应用图像信息(PI)方法对2023年山东平原M_(S)5.5地震、2021年江苏大丰海域M_(S)5.0地震和2020年河北古冶M_(S)5.1地震进行了回溯性预测研究。以华北局部(32°N~42°N,114°E~122°E)为研究区域,在网格尺度分别为0.5°×0.5°和1.0°×1.0°且预测窗长为5 a的两组参数模型下,获取2019—2027年逐年滑动的预测窗热点演化图像。结果显示,当网格尺度为1.0°×1.0°时,PI热点效果优于0.5°×0.5°网格,且对平原地震和大丰海域地震的发震位置指示作用较好。当时间窗长和归一化阈值绝对值同时增大,个别窗口存在古冶地震的有效热点,但未找到热点能同时覆盖3个地震震中所在网格的参数模型。不同参数模型下的PI热点显示,未来3~4 a郯庐断裂带渤海段存在发生M_(S)≥5.0地震的风险。本文研究结果对于华北局部地区M_(S)≥5.0地震危险性分析具有一定的参考意义。 展开更多
关键词 2023年平原M_(s)5.5地震 2021年大丰海域Ms5.0地震 2020年古冶Ms5.1地震 图像信息方法 热点迁移
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运动干预老年痴呆症的CiteSpace知识图谱可视化分析
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作者 陈媛 李佳瑶 +3 位作者 赵赫男 黄鹏 孟笑男 孙洁 《中国老年保健医学》 2024年第5期3-11,共9页
目的通过分析运动干预老年痴呆症的研究现状与热点,以期为今后的研究提供新的思路和方向。方法检索Web of Science核心合集数据库中2019年至2023年收录的1288篇运动干预老年痴呆的相关文献,利用CiteSpace v.6.2.R4软件对文献发文量、关... 目的通过分析运动干预老年痴呆症的研究现状与热点,以期为今后的研究提供新的思路和方向。方法检索Web of Science核心合集数据库中2019年至2023年收录的1288篇运动干预老年痴呆的相关文献,利用CiteSpace v.6.2.R4软件对文献发文量、关键词等进行可视化分析。结果运动干预老年痴呆症的研究热度不断上升,发文量逐年递增;主要研究机构以大学为主;发文量最多的国家是美国,中国位居第二;高频关键词为阿尔兹海默症、身体活动、运动、老年人、认知功能等;近两年突现的关键词有海马神经、载脂蛋白E等。结论运动干预老年痴呆相关研究整体发展迅速,该领域在老年痴呆的发病机制、运动干预老年痴呆认知功能的作用机制方面研究较多;运动处方的选择和利用动物模型进一步探索大脑健康的神经生理机制是目前的研究热点,未来各团队、机构之间可加强学术合作,以促进临床、基础及实验研究工作的开展。 展开更多
关键词 运动干预 老年痴呆 研究热点
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基于Web of Science数据库的护理硕士研究生教育领域研究趋势的可视化分析
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作者 蒋艳 任婷婷 +1 位作者 石磊 钟玲 《循证护理》 2024年第11期1973-1980,共8页
目的:了解近10年护理硕士研究生教育领域在全球的研究热点、研究现状和发展趋势。方法:通过Web of Science检索2013年1月1日—2023年3月1日护理硕士研究生教育领域的英文文献,对收集到英文文献的年度发文量、国家发文量、作者发文量、... 目的:了解近10年护理硕士研究生教育领域在全球的研究热点、研究现状和发展趋势。方法:通过Web of Science检索2013年1月1日—2023年3月1日护理硕士研究生教育领域的英文文献,对收集到英文文献的年度发文量、国家发文量、作者发文量、机构发文量、关键词聚类共现的数据进行可视化处理,分析其研究热点。CiteSpace软件用于检测关键字突现。结果:护理硕士研究生教育领域全球年度发文量呈整体逐步上升趋势;关键词共现聚类分析结果显示,研究热点主题集中在多领域服务实践、心理支持策略、跨专业教育课程、研究生教育模式。结论:近10年护理硕士研究生教育处于迅速发展阶段,护理硕士研究生模拟训练策略、临床思维能力、社会适应能力、跨学科模式等可能是未来该领域研究的热点和方向。未来发展跨学科研究生教育模式,充分发挥护理硕士研究生优势,提高其社会适应能力水平。 展开更多
关键词 护理硕士研究生 护理教育 研究进展 研究热点 可视化分析
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Origin and Distribution of Hydrogen Sulfide in Oil-Bearing Basins,China 被引量:9
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作者 ZHU Guangyou ZHANG Shuichang LIANG Yingbo 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2009年第6期1188-1201,共14页
The concentration of hydrogen sulfide gas (H2S) varies greatly in the oil-bearing basins of China, from zero to 90%. At present, oil and gas reservoirs with high H2S concentration have been discovered in three basin... The concentration of hydrogen sulfide gas (H2S) varies greatly in the oil-bearing basins of China, from zero to 90%. At present, oil and gas reservoirs with high H2S concentration have been discovered in three basins, viz. the Bohai Bay Basin, Sichuan Basin and the Tarim Basin, whereas natural gas with low H2S concentration has been found in the Ordos Basin, the Songliao Basin and the Junggar Basin. Studies suggest that in China H2S origin types are very complex. In the carbonate reservoir of the Sichuan Basin, the Ordos Basin and the Tarim Basin, as well as the carbonatedominated reservoir in the Luojia area of the Jiyang depression in the Bohai Bay Basin, Wumaying areas of the Huanghua depression, and Zhaolanzhuang areas of the Jizhong depression, the H2S is of Thermochemical Sulfate Reduction (TSR) origin. The H2S is of Bacterial Sulphate Reduction (BSR) origin deduced from the waterflooding operation in the Changheng Oilfield (placanticline oil fields) in the Songliao Basin. H2S originates from thermal decomposition of sulfur-bearing crude oil in the heavy oil area in the Junggar Basin and in the Liaohe heavy oil steam pilot area in the western depression of the Bohai Bay Basin. The origin types are most complex, including TSR and thermal decomposition of sulfcompounds among other combinations of causes. Various methods have been tried to identify the origin mechanism and to predict the distribution of H2S. The origin identification methods for H2S mainly comprise sulfur and carbon isotopes, reservoir petrology, particular biomarkers, and petroleum geology integrated technologies; using a combination of these applications can allow the accurate identification of the origins of H2S. The prediction technologies for primary and secondary origin of H2S have been set up separately. 展开更多
关键词 H2s TsR BsR DIsTRIBUTION origin mechanism oil-bearing basins
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Anomalous origin of left pulmonary artery branch from the aorta with Fallot's tetralogy:one case report 被引量:4
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作者 Cheng Wei Xiao Yingbin Zhong Qianjin Wen Renguo 《Journal of Medical Colleges of PLA(China)》 CAS 2008年第1期55-58,共4页
We report the case of a ten-year-old boy who had often presented with respiratory distress since born. Chest X-ray showed an enlarged right ventricle. Echocardiography demonstrated characteristic features of Fallot's... We report the case of a ten-year-old boy who had often presented with respiratory distress since born. Chest X-ray showed an enlarged right ventricle. Echocardiography demonstrated characteristic features of Fallot's tetralogy and the left pulmonary artery could not be visualized. However, cardiac catheterization disclosed that the left pulmonary artery had an anomalous origin in the ascending aorta. The patient underwent total surgical correction of the defects. Nine days later, he was discharged. We present the results of a literature review of the incidence, physiopathological, clinical, diagnostic, and surgical characteristics of this rare disease. 展开更多
关键词 Cardiac surgery Fallot's tetralogy Anomalous origin Left pulmonary artery
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Genomic data provides simple evidence for a single origin of life 被引量:4
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作者 Kenji Sorimachi 《Natural Science》 2010年第5期519-525,共7页
One hundred and fifty years ago, Charles Darwin’s on the Origin of Species explained the evolution of species through evolution by natural selection. To date, there is no simple piece of evidence demonstrating this c... One hundred and fifty years ago, Charles Darwin’s on the Origin of Species explained the evolution of species through evolution by natural selection. To date, there is no simple piece of evidence demonstrating this concept across species. Chargaff’s first parity rule states that comple-mentary base pairs are in equal proportion across DNA strands. Chargaff’s second parity rule, in-consistently followed across species, states that the base pairs are in equal proportion within DNA strands [G ≈ C, T ≈ A and (G + A) ≈ (C + T)]. Using genomic libraries, we analyzed the extent to which DNA samples followed Chargaff’s second parity rule. In organelle DNA, nucleotide rela-tionships were heteroskedastic. After classifying organelles into chloroplasts and mitochondria, and then into plant, vertebrate, and invertebrate I and II mitochondria, nucleotide relationships were expressed by linear regression lines. All regression lines based on nuclear and organelle DNA crossed at the same point. This is a simple demonstration of a common ancestor across species. 展开更多
关键词 Evolution origin of species DARWIN GENOME Chargaff’s PARITY Rules ORGANELLE DNA Linear FORMULA
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Origin of Paleofluids in Dabashan Foreland Thrust Belt:Geochemicai Evidence of ^(13)C,^(18)O and ^(87)Sr/^(86)Sr in Veins and Host Rocks 被引量:2
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作者 ZENG Jianhui XU Tianwu +1 位作者 SUN Zhanqiang ZHANG Yongwang 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2010年第5期1239-1255,共17页
In the last ten years, with important discoveries from oil and gas exploration in the Dabashan foreland depression belt in the borderland between Shanxi and Sichuan provinces, the relationship between the formation an... In the last ten years, with important discoveries from oil and gas exploration in the Dabashan foreland depression belt in the borderland between Shanxi and Sichuan provinces, the relationship between the formation and evolution of, and hydrocarbon accumulation in, this foreland thrust belt from the viewpoint of basin and oil and gas exploration has been studied. At the same time, there has been little research on the origin of fluids within the belt. Based on geochemical system analysis including Z values denoting salinity and research on δ13C, δ18O and S7Sr/S6Sr isotopes in the host rocks and veins, the origin of paleofluids in the foreland thrust belt is considered. There are four principal kinds of paleofluid, including deep mantle-derived, sedimentary, mixed and meteoric. For the deep mantle-derived fluid, the δ13C is generally less than -5.0‰PDB, δ18O less than -10.0‰PDB, Z value less than 110 and 87Sr/86Sr less than 0.70600; the sedimentary fluid is mainly marine carbonate- derived, with the δ13C generally more than -2.0‰PDB, 18δO less than -10.0‰PDB, Z value more than 120 and STSr/S6Sr ranging from 0.70800 to 0.71000; the mixed fluid consists mainly of marine carbonate fluid (including possibly a little mantle-derived fluid or meteoric water), with the j13C generally ranging from -2.0‰ to -8.0‰PDB, δ18O from -10.0‰ to -18.0‰ PDB, Z value from 105 to 120 and 87Sr/86Sr from 0.70800 to 0.71000; the atmospheric fluid consists mainly of meteoric water, with the δ13C generally ranging from 0.0‰ to -10.0‰PDB, δ18O less than -8.0%rPDB, Z value less than 110 and 87Sr/86Sr more than 0.71000. The Chengkou fault belt encompasses the most complex origins, including all four types of paleofluid; the Zhenba and Pingba fault belts and stable areas contain a simple paleofluid mainly of sedimentary type; the Jimingsi fault belt contains mainly sedimentary and mixed fluids, both consisting of sedimentary fluid and meteoric water. Jurassic rocks of the foreland depression belt contain mainly meteoric fluid. 展开更多
关键词 paleofluid origin δ13C δ18O and 87sr/s6sr isotopic geochemistry Dabashan forelandthrust belt
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2021年玛多M_(S)7.4地震的PI热点特征回溯性预测研究 被引量:1
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作者 宋程 张永仙 +2 位作者 周少辉 毕金孟 徐小远 《地震研究》 CSCD 北大核心 2023年第2期226-236,共11页
应用图像信息(PI)方法研究2021年玛多M_(S)7.4地震前后的热点特征变化。以8 a预测窗长、0.8°×0.8°网格尺度为主要参数,获取2009—2028年逐年滑动的预测窗热点分布图像。结果显示:(1)在2009—2020年的5个连续回溯性预测... 应用图像信息(PI)方法研究2021年玛多M_(S)7.4地震前后的热点特征变化。以8 a预测窗长、0.8°×0.8°网格尺度为主要参数,获取2009—2028年逐年滑动的预测窗热点分布图像。结果显示:(1)在2009—2020年的5个连续回溯性预测窗口中,玛多地震的震中所在网格及其摩尔邻近网格持续存在密集热点,对发震地点指示作用较强。(2) 2014—2028年,多数预测窗口内玛多地震震中或摩尔邻近网格出现过PI热点;在最后3个连续预测窗口内(2019—2026年、2020—2027年、2021—2028年),震中附近出现密集深色热点且呈逐渐收缩的趋势,对发震紧迫性具有一定的指示意义。(3)综合2009年以来的热点演化图像可知,巴颜喀拉地块、柴达木地块、祁连地块和羌塘地块内都出现过热点,出现在巴颜喀拉地块与柴达木地块交界玛多县附近的热点频次高、颜色深、覆盖面较大,表明青藏块体内部巴颜喀拉地块中北缘地震活动性较强、相对发震风险较高。 展开更多
关键词 玛多M_(s)7.4地震 PI方法 热点 回溯性预测
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Lithological and Si–O–S isotope geochemistry:constraints on the origin and genetic environment of the selenium(Se)-rich siliceous rocks in Enshi,Hubei Province,China 被引量:1
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作者 Caixia Feng Shen Liu Ian M.Coulson 《Acta Geochimica》 EI CAS CSCD 2021年第1期89-105,共17页
Se-rich black rock series of the Middle and Late Permian system is widely distributed in Enshi Prefecture with an exposed area of 850 km~2,among which the unique Yutangba black rock series independent selenium deposit... Se-rich black rock series of the Middle and Late Permian system is widely distributed in Enshi Prefecture with an exposed area of 850 km~2,among which the unique Yutangba black rock series independent selenium deposit with industrial mining significance in the world is produced.However,the source and metallogenic mechanisms of Se are still controversial.In general,terrestrial weathering and submarine hydrothermal processes are the main source end members of Si and Se,and the related siliceous rocks record the deposition process of Si and Se from different sources.The study of lithofacies and paleogeography shows that western Hubei belongs to the near eastwest turn of the Yangzi platform in the Middle and Late Permian and becomes an inter-platform basin with nearly north-south direction.Therefore,the comparative study of the Yutangba deposit and the selenium-rich black rock series in the northern Shadi with high selenium content is expected to reveal the provenance evolution of the two sections in space,and further restrict the Se mineralization mechanism in the Enshi basin.From the element geochemistry study,the black rock series in two study areas may have formed in a transitional position of either the continental margin or continental slope,in the process of sedimentary,more terrigenous clastic materials entered.They are rich in lithophile elements V and Cr.δU>1.0,U/Th and V/(V+Ni)ratio indicate that the Se-rich strata of black rock series in the Enshi areas occurred in an anoxic reducing environment and formed in an environment between the ocean basin and the continental margin.From Si-O isotope geochemistry,the original Si source of the study area is thought to relate to a volcanic eruption,which leads to the enrichment of Si in the seawater.The determined values of S isotope in the black rock series of the two study areas both show the characteristics related to organic reduction/biogenic. 展开更多
关键词 se-rich siliceous rocks Geochemistry si–O–s isotope origin sedimentary environment
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Origin and evolution of oilfield brines from Tertiary strata in western Qaidam Basin:Constraints from ^(87)Sr/^(86)Sr,δD,δ^(18)O,δ^(34)S and water chemistry 被引量:11
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作者 FAN Qishun MA Haizhou +2 位作者 LAI Zhongping TAN Hongbing LI Tingwei 《Chinese Journal Of Geochemistry》 EI CAS 2010年第4期446-454,共9页
Chemistry of major and minor elements,87Sr/86Sr,δD,δ18O and δ34S of brines were measured from Tertiary strata and Quaternary salt lakes in the western Qaidam Basin.The water chemistry data show that all oilfield br... Chemistry of major and minor elements,87Sr/86Sr,δD,δ18O and δ34S of brines were measured from Tertiary strata and Quaternary salt lakes in the western Qaidam Basin.The water chemistry data show that all oilfield brines are CaCl2 type.They were enriched in Ca2+,B3+,Li+,Sr2+,Br-,and were depleted in Mg2+,SO42-,which indicated that these brines had the characteristics of deeply circulated water.The relationship between δD and δ18O shows that all data of these brines decline towards the Global Meteoric Water Line(GWL) and Qaidam Meteoric Water Line(QWL),and that the intersection between oilfield brines and Meteoric Water Lines was close to the local spring and fresh water in the piedmont in the western Qaidam Basin.The results suggest that oilfield brines has initially originated from meteoric water,and then might be affected by water-rock metamorphose,because most oilfield brines distribute in the range of metamorphosing water.The 87Sr/86Sr values of most oilfield brines range from 0.71121 to 0.71194,and was less than that in salt lake water(>0.712),but close to that of halite in the study area.These imply that salt dissolution occurred in the process of migration.In addition,all oilfield brines have obviously much positive δ34S values(ranging from 26.46‰ to 54.57‰) than that of salt lake brines,which was caused by bacterial sulfate reduction resulting in positive shift of δ34S value and depleteed SO42-in oilfield brines.Combined with water chemical data and δD,δ18O,87Sr/86Sr,δ34S values,we concluded that oilfield brines mainly originate from the deeply circulated meteoric waters,and then are affected by salt dissolution,water-rock metamorphose,sulfate reduction and dolomitization during the process of migration.These processes alter the chemical compositions of oilfield brines and accumulate rich elements(such as B,Li,Sr,Br,K and so on) for sustainable utilization of salt lake resources in the Qaidam Basin. 展开更多
关键词 柴达木盆地西部 油田卤水 第三纪 水化学 地层 硫酸盐还原 演化
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Anomalous Origin and Course of Coronary Artery—Presentation of Three Cases 被引量:1
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作者 Ankit Maheshwari Soumyadip Saha +2 位作者 Tanunita Mondal Harpreet Singh Minhas Muhammad Abid Geelani 《World Journal of Cardiovascular Surgery》 2019年第8期89-95,共7页
Anomalous origin of coronary arteries may be encountered coincidentally in the presence of unrelated pathology or when these are affected directly. This may directly be responsible for affecting the procedure or outco... Anomalous origin of coronary arteries may be encountered coincidentally in the presence of unrelated pathology or when these are affected directly. This may directly be responsible for affecting the procedure or outcome. Various types of anomalies of origin,?as well as course of coronary arteries,?have been classified in the past. Here we report 3 cases of anomalous origin of coronary arteries in different scenarios. First case had anomalous coronary with bicuspid aortic valve with dilated ascending aorta for which Bentall’s procedure was done, while the second and third cases were anomalous coronaries with coronary artery disease for which coronary artery bypass grafting was done. 展开更多
关键词 ANOMALOUs origin of CORONARY ARTERY Bentall’s Procedure CORONARY ARTERY BYPAss GRAFT
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Case Report: Fever of Unknown Origin <br/>—An Unusual Presentation for Diffuse Large B-Cell Lymphoma 被引量:1
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作者 Chidinma Onweni Jennifer Treece +1 位作者 Christine Moore Mailien Rogers 《Journal of Cancer Therapy》 2017年第4期405-412,共8页
A 61-year-old male initially presented with fever of unknown origin. He had extensive work-up over two years including an infectious diseases panel, autoimmune studies, and Rheumatology and Hematology evaluations. The... A 61-year-old male initially presented with fever of unknown origin. He had extensive work-up over two years including an infectious diseases panel, autoimmune studies, and Rheumatology and Hematology evaluations. The patient was initially diagnosed with Adult Still’s disease and underwent an out-patient right nodal fine-needle aspiration that was indeterminate. After continued failure of treatment for Adult Still’s disease, the patient had surgical resection of a right axillary lymph node that yielded the diagnosis of diffuse large B-cell lymphoma. Further work-up revealed Epstein-Barr virus positivity, the possible trigger behind his mutation for diffuse large B-cell lymphoma and its uncommon presentation. The patient met criteria for central nervous system prophylaxis and received multiple administrations throughout his therapy. He ultimately expired following recurrence of his disease at its initial site but without central nervous system involvement. We report an uncommon presentation of a patient with diffuse large B-cell lymphoma. This lymphoma can have numerous, vague presentations requiring a broad differential diagnosis and may lead to multiple evaluations prior to an ultimate diagnosis. We will also discuss the need for central nervous system prophylaxis, how this patient is qualified for prophylaxis, and how central nervous system prophylaxis benefits, harms, or does not affect patients with diffuse large B-cell lymphoma. 展开更多
关键词 FEVER of Unknown origin EPsTEIN-BARR Virus DIFFUsE Large B-CELL LYMPHOMA Non-Hodgkin’s LYMPHOMA
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Loss of efficacy and safety of the switch from infliximab original to infliximab biosimilar(CT-P13)in patients with inflammatory bowel disease
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作者 María Fernanda Guerra Veloz Federico Argüelles-Arias +7 位作者 Luisa Castro Laria Belén Maldonado Pérez Antonio Benítez Roldan Raúl Perea Amarillo Vicente Merino Bohórquez Miguel Angel Calleja Angel Caunedo Alvarez Angel Vilches Arenas 《World Journal of Gastroenterology》 SCIE CAS 2018年第46期5288-5296,共9页
BACKGROUND Infliximab original has changed the natural history of inflammatory bowel diseases(IBD) over the past two decades. However, the recent expiration of its patent has allowed the entry of the first Infliximab ... BACKGROUND Infliximab original has changed the natural history of inflammatory bowel diseases(IBD) over the past two decades. However, the recent expiration of its patent has allowed the entry of the first Infliximab biosimilar into the European and Spanish markets. Currently switching drugs data in IBD are limited. AIM To compare the efficacy of infliximab biosimilar, CT-P13, against infliximab original, analyzing the loss of response of both at the 12 mo follow-up in patients with IBD.METHODS An observational study of two cohorts has been conducted. One retrospective cohort that included patients with IBD treated with Infliximab original, and a prospective cohort of patients who were switching from infliximab original to infliximab biosimilar(CT-P13). We had analyzed the overall efficacy and loss of efficacy in patients in remission at the end of one year after treatment with the original drug compared to the results of the year of treatment with the biosimilar.RESULTS98 patients(CD 67, CU 31) were included in both cohorts. The overall efficacy for infliximab original per year of treatment was 71% vs 68.2% for infliximab biosimilar(P = 0.80). The loss of overall efficacy at 12 mo for infliximab original was 6.6% vs 14.5% for infliximab biosimilar(P = 0.806). The loss of efficacy in patients who were in basal remission was 16.3% for infliximab original vs 27.1% for infliximab biosimilar. Adverse events were 9.2% for infliximab original vs 11.2% for infliximab biosimilar. CONCLUSION The overall efficacy and loss of treatment response with infliximab biosimilar(CT-P13) is similar to that observed with infliximab original in patients who were switching at the 12 mo follow-up. There is no difference in the rate of adverse events. 展开更多
关键词 Crohn’s DIsEAsE Ulcerative colitis CT-P13 Inflammatory bowel DIsEAsE BIOsIMILAR agent INFLIXIMAB originAL Efficacy
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Functions of Rhetoric and Social Science Origins in Communication Study—Based on Boxing Plato’s Shadow:An Introduction to the Study of Human Communication
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作者 WANG Hai HUANG Dai-ming 《Journal of Literature and Art Studies》 2020年第3期255-270,共16页
With the development of the rhetoric study from the origins in ancient Athens and The Rhetoric of Aristotle to the formation of modern Communication Study at the beginning of the twentieth century,the Rhetoric Study c... With the development of the rhetoric study from the origins in ancient Athens and The Rhetoric of Aristotle to the formation of modern Communication Study at the beginning of the twentieth century,the Rhetoric Study changed in dynamic and its concepts and theories merged and formed the foundations of Communication Study which focused on personal communication and speech rhetoric skills at that time.At the beginning of the twentieth century,although the Neo-Aristotelian rhetorical scholars from classic rhetoric approach created methodologies and enriched the content of Communication Study under the influence of humanistic study and social science study,but the Communication discipline was still in the embarrassing position.During World War I and World War II,most scholars with backgrounds of social science,history and anthropology carried out the studies of propaganda wars and the message disseminating,and explored the military powers and governments’access to the media and developed serial communication modes from the social science perspective,which laid the foundation for Communication discipline in the academic field.The author analyzed the Rhetoric and Social Science origins of Communication study in Boxing Plato’s Shadow:an Introduction to the Study of Human Communication,which is beneficial and helpful to understand the academic origins of Communication study and its cross-disciplined and embarrassing positions. 展开更多
关键词 the origins of COMMUNICATION sTUDY RHETORIC origins social science origins BOXING Plato’s sHADOW an INTRODUCTION to the sTUDY of human COMMUNICATION
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On the origin of cardiac mucosa: A histological and immunohistoc-hemical study of cytokeratin expression patterns in the developing esophagogastric junction region and stomach
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作者 Gert De Hertogh Peter Van Eyken +1 位作者 Nadine Ectors Karel Geboes 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第29期4490-4496,共7页
AIM: To examine the fetal and neonatal esophagogastric junction region (EGJ) histologically for the presence of an equivalent to adult cardiac mucosa (CM); to study the expression patterns of all cytokeratins (C... AIM: To examine the fetal and neonatal esophagogastric junction region (EGJ) histologically for the presence of an equivalent to adult cardiac mucosa (CM); to study the expression patterns of all cytokeratins (CK) relevant to the EGJ during gestation; to compare the CK profile of the gestational and the adult EGJ; and to determine the degree of development in the adult EGJ histology and CK profile during gestation. METHODS: Forty-eight fetal autopsy specimens of the EGJ were step-sectioned and stained with hematoxylin and eosin (H&E) to select sections showing the mucosal lining. Immunohistochemistry for CK5, 7, 8, 13, 18, 19, and 20 was performed. Antibody staining was then graded for location, intensity, and degree. RESULTS: The distal esophagus was lined by simple columnar epithelium from 12-wk gestational age (GA). The proximal part of this segment consisted of mucusproducing epithelium, devoid of parietal cells. CK5 and 13 were present exclusively in multilayered epithelia and CK8, 18, and 19 predominantly in simple columnar epithelium. There were no differences in the frequencies of the coordinate CK7+/20+ and the CK7-/20- immunophenotypes between different locations. The prevalence of the CK7+/ 20- immunophenotype decreased, and that of the CK7-/ 20+ immunophenotype increased significantly from the distal esophagus to the distal stomach. CONCLUSION: Fetal columnar-lined lower esophagus (fetal CLE) may be the equivalent and precursor of the short segments of columnar epithelium found in the distal esophagus of some normal adult subjects. Esophageal simple columnar epithelium without parietal cells (ESN) may be the precursor of adult CM. The similarities between the fetal and adult EGJ and stomach CK expression pattems support the conclusion that adult CN has an identifiable precursor in the fetus. This would then indicate that at least a part of the adult CM has a congenital origin. 展开更多
关键词 Cardiac mucosa origin Fetal autopsy Barrett's CK7/20 pattern
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Misreading Rousseau? Jacques Derrida's Deconstructive Reading of Rousseau's Essay on the Origin of Languages
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作者 Gerasimos Kakoliris 《Journal of Philosophy Study》 2015年第10期499-512,共14页
Jacques Derrida's engagement with Jean-Jacques Rousseau in the second part of Of Grammatology constitutes the most systematic, extensive example of deconstructive reading. Nevertheless, the problem of whether Derrida... Jacques Derrida's engagement with Jean-Jacques Rousseau in the second part of Of Grammatology constitutes the most systematic, extensive example of deconstructive reading. Nevertheless, the problem of whether Derrida reproduces Rousseau's basic claims adequately has remained a peripheral concern. This has meant that this may constitute a misreading and the consequences that this would have for the deconstructive operation itself have not adequately examined. Hence, this enquiry into Derrida's reading of Rousseau centers upon the extent to which Derrida distorts Rousseau's text in order to be able to confirm deconstruction's radical theoretical positions. 展开更多
关键词 DERRIDA ROUssEAU Deconstructive Reading Rousseau's Essay on the origin of Languages Derrida'sOf Grammatology
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The countryside and origins of China's reform
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作者 王郁昭 《China Economist》 2009年第2期42-51,共10页
China's 30 years of reform have achieved tremendous success and a transformation of the country.Amazingly,however,this grand endeavor began in an anonymous rural village in which the f irst breakthroughs were made... China's 30 years of reform have achieved tremendous success and a transformation of the country.Amazingly,however,this grand endeavor began in an anonymous rural village in which the f irst breakthroughs were made.How did China's reform begin in the countryside? Why were the initial breakthroughs made there? What is its significance? This article elaborates on these questions,urging that we should carry out a scientific outlook on development in the spirit of the 17th Party Congress,and steadfastly deepen the rural reform of rural.Research into these issues will help us gain a deeper understanding of the rural reform. 展开更多
关键词 The countryside and origins of China’s reform WORK
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基于CiteSpace知识图谱的国内女性体育研究现状与热点分析 被引量:1
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作者 程洋洋 陈露露 +1 位作者 章翔 杜百忍 《宿州学院学报》 2023年第8期46-50,共5页
为了解女性体育的研究现状与热点,利用CiteSpace对CNKI核心期刊中收录的从1997—2023年女性体育相关文献301篇进行可视化分析。研究发现,女性体育研究发展经历萌芽期(1997—2001年)、探索期(2002—2008年)、发展期(2009—2016年)和稳定... 为了解女性体育的研究现状与热点,利用CiteSpace对CNKI核心期刊中收录的从1997—2023年女性体育相关文献301篇进行可视化分析。研究发现,女性体育研究发展经历萌芽期(1997—2001年)、探索期(2002—2008年)、发展期(2009—2016年)和稳定期(2017—2023年),暂未形成大规模的作者合作团队,科研机构多以高校为主,作者及机构间合作交流少,研究热点呈多元化趋势,未来我国女性体育研究的热点和前沿是“女性形象”以及“性别平等”。研究提出,建立相关的平台来促进作者及机构的学术交流与合作,未来扩大研究对象选择范围,促进女性体育的更好发展。 展开更多
关键词 CITEsPACE 女性体育 研究热点
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Bellini’s Norma and the Challenge of Regieoper
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作者 Ephraim David 《Cultural and Religious Studies》 2023年第7期297-307,共11页
Despite the universal messages of Bellini’s Norma,the attempts at translating and adapting it to a modern context in the revisionist spirit of Regieoper(the director’s opera)encounter serious difficulties,as indicat... Despite the universal messages of Bellini’s Norma,the attempts at translating and adapting it to a modern context in the revisionist spirit of Regieoper(the director’s opera)encounter serious difficulties,as indicated by recent productions.The present paper focuses on these difficulties by examining in detail what appear to be the most challenging,innovative and thought-provoking among those productions which,despite remarkable merits,suffer from acute shortcomings:inter alia certain incompatibilities with the libretto,cultural dissonances,and problems of inner-coherence and verisimilitude.The detailed analysis of specific productions is followed by a general discussion(through a comparative approach)of Norma’s adaptability to Regieoper,which is shown to be extremely difficult,among other reasons because the terms of reference to the dimensions of the historical context(and the inherent mores)in its libretto are by far less flexible than those of other operas.Norma’s universal messages and its dualities of“foreign”versus“familiar,”with their vast semantic ambit,would seem to be better understood by meticulously delving into the subtleties of the text(and subtext)of Romani’s sophisticated libretto.Inner-coherence and compatibility with the libretto are essential for any attempt at creating an appropriate analogy running parallel to the original narrative.A fully convincing production of Norma in a modernizing spirit,if at all possible,remains an artistic challenge. 展开更多
关键词 Director’s opera faithfulness to the original ADAPTABILITY inner coherence
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Possible Evolutionary Models in the Initially Hydride Earth Theory
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作者 Kudryavtsev Pavel 《International Journal of Geosciences》 CAS 2023年第5期377-426,共50页
A modern view of the properties of chemical elements has confirmed the theory of the hot origin of the Earth. The next step in developing this theory was the hypothesis of the initial hydride Earth. In this work, we a... A modern view of the properties of chemical elements has confirmed the theory of the hot origin of the Earth. The next step in developing this theory was the hypothesis of the initial hydride Earth. In this work, we attempted to find additional evidence for this hypothesis and show additional effects that flow from it. The effect of the physical properties of atoms and ions on their behavior during the formation of the Earth was studied. The maximum contribution to the distribution of elements was made by those elements whose content in the original protoplanets of the disk was the maximum. Correlation dependence is obtained, which allows one to calculate the distribution of elements in the protoplanetary disk. It was shown that hydrogen was the main element in the proto substance located in the zone of the Earth’s formation. In this case, various chemical compounds formed, most represented by hydrogen compounds—hydrides. Since the pressure inside the Earth is 375 GPa, this factor forces the chemical compounds to adopt stoichiometry and structure that would not be available in atmospheric conditions. It is shown that many chemical elements at high pressure in a hydrogen medium form simple hydrides and super hydrides—polyhydrides with high hydrogen content. Pressure leads to a higher density of matter inside the planet. Given the possibility of forming polyhydrides, there is the possibility of binding the initially available hydrogen in an amount that can reach 49.3 mole%. Young Earth could contain about 10.7 mass% of hydrogen in hydrides, polyhydrides, and adsorbed form is almost twice higher than previous estimates. This fact additionally confirms the theory of the original hydride Earth. In hydrides, the occurrence of the phenomenon of superconductivity was discovered. Polyhydrides were shown as potential superconductors with a high critical temperature above 200 K. We, based on these data, hypothesized the presence of superconducting properties in the Earth’s core, which explains the presence of a magnetic field in the Earth, as well as the unevenness and instability of this field and the possibility of migration of the Earth’s poles. The fact that the Earth has a hydroid core causes its change in time due to the instability of hydrides. Arranged several possible models of the destruction of the Earth’s core. The calculations showed that both models give close results. These results give predictions that can be measured. The proposed models also made it possible to estimate the initial size of the Earth. Possible ways of further testing the hypothesis of the initial hydride Earth is shown. 展开更多
关键词 Theory of the Hot origin of the Earth Magnetic separation of Elements Atom Ionization Energy Hydrides Polyhydrides Earth Expansion superconductivity of the Earth’s Core
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