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The Excavation and Practical Significance of Folk Art Education Resources of Ethnic Minorities in Guangxi of china
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作者 Zongting Bi 《Journal of Educational Theory and Management》 2017年第1期85-87,共3页
Guangxi minority folk art education resources is a valuable treasure trove of art, realistic significance to mining and utilization of Guangxi minority folk art education resources. The practice proves that Guangxi mi... Guangxi minority folk art education resources is a valuable treasure trove of art, realistic significance to mining and utilization of Guangxi minority folk art education resources. The practice proves that Guangxi minority folk art education resource is a typical folk art "Encyclopedia", is a folk song "epic" glorious and resplendent that is a piece of precious folk art "living fossil". Guangxi minority folk art education resources mining and utilization, enrich the arts and culture in Guangxi, China the students' national consciousness, and show the rich geographical and cultural characteristics. 展开更多
关键词 GUANGXI MINORITY Art education RESOURCES Mining and UTILIZATION significance
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The Practical Significance of Marx's Theory of Natural Force Resources 被引量:1
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作者 Jiefang ZHU 《Asian Agricultural Research》 2020年第3期64-67,74,共5页
Marx's theory of natural force resources is an indispensable part of Marx's economic theory.Natural force resources,as a kind of natural elements that do not cost a penny,are added to the production process fr... Marx's theory of natural force resources is an indispensable part of Marx's economic theory.Natural force resources,as a kind of natural elements that do not cost a penny,are added to the production process free of charge,and play a special role in the production process.Grasping and understanding the scientific connotation of Marx's theory of natural force resources is of great theoretical value and practical significance for promoting the harmonious unity of man and nature and adhering to the strategy of sustainable economic development. 展开更多
关键词 Marx THEORY of NATURAL FORCE RESOURCE practical significance
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A Study of the Catalyst and the Practical Significance of the Energy Cooperation Between China and Russia in the New Period
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作者 Sun Yang Du Nini Yin Lili 《学术界》 CSSCI 北大核心 2016年第7期275-280,共6页
On 3,September,2015,China signed more than 20 cooperation agreements,six of which were about oil and gas. This is a breakthrough since the 400 billion natural gas supply deal which was signed in May 2014. These great ... On 3,September,2015,China signed more than 20 cooperation agreements,six of which were about oil and gas. This is a breakthrough since the 400 billion natural gas supply deal which was signed in May 2014. These great achievements are inseparable from the continuous efforts of the new generation of collective leadership and multi- level and all- dimensional cooperation under the background of "China dream". This paper aims to discuss the stimulative factors of the developments and breakthroughs from the aspects of the internal efforts between the two governments and external influences of international environment. Lastly,the paper explores the great significance of energy cooperation between China and Russia to the realization of "China dream". 展开更多
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Practical strategies for increasing efficiency and effectiveness in critical care education 被引量:4
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作者 Maurice F Joyce Sheri Berg Edward A Bittner 《World Journal of Critical Care Medicine》 2017年第1期1-12,共12页
Technological advances and evolving demands inmedical care have led to challenges in ensuring adequate training for providers of critical care. Reliance on the traditional experience-based training model alone is insu... Technological advances and evolving demands inmedical care have led to challenges in ensuring adequate training for providers of critical care. Reliance on the traditional experience-based training model alone is insufficient for ensuring quality and safety in patient care. This article provides a brief overview of the existing educational practice within the critical care environment. Challenges to education within common daily activities of critical care practice are reviewed. Some practical evidence-based educational approaches are then described which can be incorporated into the daily practice of critical care without disrupting workflow or compromising the quality of patient care. It is hoped that such approaches for improving the efficiency and efficacy of critical care education will be integrated into training programs. 展开更多
关键词 Medical EDUCATION Critical care EDUCATIONAL EFFICIENCY EDUCATIONAL efficacy BEDSIDE teaching Flipped classroom Patient handover Multidisciplinary team practice In SITU simulation PROCEDURAL training
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Myths, fallacies and practical pearls in GI lab
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作者 Pradeep Kumar 《World Journal of Gastrointestinal Endoscopy》 CAS 2014年第12期584-591,共8页
Many prevalent practices and guidelines related to Gastrointestinal endoscopy and procedural sedation are at odds with the widely available scientific-physiological and clinical outcome data. In many institutions, str... Many prevalent practices and guidelines related to Gastrointestinal endoscopy and procedural sedation are at odds with the widely available scientific-physiological and clinical outcome data. In many institutions, strict policy of pre-procedural extended fasting is still rigorously enforced, despite no evidence of increased incidence of aspiration after recent oral intake prior to sedation. Supplemental oxygen administration in the setting of GI procedural sedation has been increasingly adopted as reported in the medical journals, despite clear evidence that supplemental oxygen blunts the usefulness of pulse oximetry in timely detection of sedation induced hypoventilation, leading to increased number of adverse cardiopulmonary outcomes. Use of Propofol by Gastroenterologist-Nurse team is erroneously considered dangerous and often prohibited in various institutions, at the same time worldwide reports of remarkable safety and patient satisfaction continue to be published, dating back more than a decade. Of patient monitoring practices that have been advocated to be standard, many merely add cost, not value. Advances in the technology often are not incorporated in a timely manner in guidelines or clinical practices, e.g., Capsule endoscopy or electrocautery during GI procedures do not interfere with proper functioning of the current pacemakers or defibrillators. Orthopedic surgeons have continued to recommend prophylactic antibiotics for joint replacement patientsprior to GI procedures, without any evidence of need. These myths are explored for a succint review to prompt a change in clinical practices and institutional policies. 展开更多
关键词 Endoscopy gastrointestinal Pulse OXIMETRY Oxygen supplemental PROPOFOL Conscious SEDATION Deep SEDATION FASTING preprocedural Standards of Care Clinical Practice Guidelines
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Sedimentary model reconstruction and exploration significance of Permian He 8 Member in Ordos Basin,NW China
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作者 XIAO Hongping LIU Rui'e +2 位作者 ZHANG Fudong LIN Changsong ZHANG Mengyuan 《Petroleum Exploration and Development》 2019年第2期280-292,共13页
Based on the Late Paleozoic geological background and the latest exploration achievements of the Ordos Basin and North China platform, it is concluded that during the sedimentary period of Permian He 8 Member, the are... Based on the Late Paleozoic geological background and the latest exploration achievements of the Ordos Basin and North China platform, it is concluded that during the sedimentary period of Permian He 8 Member, the area in concern had multiple material sources, multiple river systems, flat terrain, shallow sedimentary water, widely distributed fluvial facies sand body and no continuous lake area, so alluvial river sedimentary system developed in the whole region. Based on stratigraphic correlation and division, and a large number of drilling and outcrop data, a comprehensive analysis of lithofacies and sedimentary facies types and distribution was carried out to reconstruct the ancient geographic pattern of the He 8 Member sedimentary period. The results of paleogeography restoration show that the area of Ordos Basin was the "runoff area" in the sedimentary slope in the western part of the North China platform during the sedimentary period of He 8 Member, the whole region was mainly alluvial plain sedimentation featuring alternate fluvial facies, flood plain facies and flood-plain lake facies. According to the results of flume deposition simulation experiment, a new sedimentary model of "alluvial river & flood-plain lake" is established, which reveals the genesis of large area gravel sand body in He 8 Member of this area and provides geological basis for the exploration of tight gas in the south of the basin. 展开更多
关键词 ORDOS Basin He 8 MEMBER North China platform paleogeographic restoration ALLUVIAL river flood-plain lake SEDIMENTARY model exploration significance
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吉林东部大蒲柴河adakites锆石U-Pb年龄、Hf同位素特征及其意义 被引量:14
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作者 刘燊 胡瑞忠 +6 位作者 冯彩霞 冯光英 于晓飞 李才 贾大成 齐有强 王涛 《岩石学报》 SCIE EI CAS CSCD 北大核心 2009年第12期3153-3164,共12页
地球化学研究表明,大蒲柴河岩体具有典型的埃达克岩特征,来自加厚下地壳的部分熔融作用。本文采用激光等离子质谱对该岩体进行了U-Pb同位素定年,结果表明该岩体为晚侏罗世(165Ma)岩浆活动的产物。锆石的LA-MC-ICPMS Hf同位素研究结果显... 地球化学研究表明,大蒲柴河岩体具有典型的埃达克岩特征,来自加厚下地壳的部分熔融作用。本文采用激光等离子质谱对该岩体进行了U-Pb同位素定年,结果表明该岩体为晚侏罗世(165Ma)岩浆活动的产物。锆石的LA-MC-ICPMS Hf同位素研究结果显示,ε_(Hf)(165Ma)范围为-5.02~5.43,二阶段Hf模式年龄(t_(DM2)范围为965~1622Ma,暗示原始母岩浆为两种不同源区岩浆的混合。另外,Hf同位素研究表明,研究区在中-新元古代时(965~1304Ma)曾经历了一次重要的地壳增生事件。 展开更多
关键词 U-Pb age significance partial melting asthenospheric MANTLE Middle PROTEROZOIC during Jilin Province CRUSTAL growth MANTLE source Late Jurassic
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大别山高压-超高压片麻岩锆石的拉曼光谱学研究 被引量:3
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作者 刘文元 刘景波 《岩石学报》 SCIE EI CAS CSCD 北大核心 2009年第9期2157-2164,共8页
对大别山高压-超高压片麻岩的锆石进行了激光拉曼探针、阴极发光(CL)、U-Pb年龄和U、Th等微量元素的测定分析。研究结果表明:锆石拉曼光谱1008cm^(-1)峰的半高宽普遍小于20cm^(-1),指示锆石结晶程度较好到中等程度的蜕晶化;早期继承锆... 对大别山高压-超高压片麻岩的锆石进行了激光拉曼探针、阴极发光(CL)、U-Pb年龄和U、Th等微量元素的测定分析。研究结果表明:锆石拉曼光谱1008cm^(-1)峰的半高宽普遍小于20cm^(-1),指示锆石结晶程度较好到中等程度的蜕晶化;早期继承锆石在三叠纪高压-超高压变质作用中经历了退火和重结晶作用,所受的放射性通量是从200Ma的早侏罗纪开始积累的,表明高压-超高压岩石在这一时间已出露地表;北大别白垩纪岩浆热事件对高压-超高压岩石的影响很小;大多数锆石数据都落在天然锆石的放射性破坏趋势(RDT)中,表明锆石在高压、超高压过程中基本发生了完全的重结晶。 展开更多
关键词 DABIE Mountains HP-UHP metamorphic rocks radiation damage trace elements during significant North DABIE Laser Raman the earth
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地质样品Sr同位素激光原位等离子体质谱(LA-MC-ICP-MS)测定 被引量:16
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作者 杨岳衡 吴福元 +2 位作者 谢烈文 杨进辉 张艳斌 《岩石学报》 SCIE EI CAS CSCD 北大核心 2009年第12期3431-3441,共11页
Sr同位素在研究岩浆演化及其源区具有重要的示踪作用。MC-ICP-MS的出现为具有高Sr含量地质样品的激光原位Sr同位素测定变成了现实。本文利用Netpune MC-ICP-MS和193nm准分子激光联机,通过滨珊瑚、斜长石、磷灰石和钙钛矿等系列实验,建... Sr同位素在研究岩浆演化及其源区具有重要的示踪作用。MC-ICP-MS的出现为具有高Sr含量地质样品的激光原位Sr同位素测定变成了现实。本文利用Netpune MC-ICP-MS和193nm准分子激光联机,通过滨珊瑚、斜长石、磷灰石和钙钛矿等系列实验,建立了激光原位Sr同位素测定方法。实验结果表明,激光Sr同位素测定中Kr、Rb和稀土元素二价离子的干扰能够有效扣除,而钙聚合物的干扰在Neptune型MC-ICP-MS并不显著。不同激光参数的实验表明,大激光束斑产生更高信号强度,因而Sr同位素精度更高,同一激光束斑大小,激光脉冲频率对Sr同位素精度无明显影响。 展开更多
关键词 natural isotopic measurement inductively coupled plasma analytical procedure spatial resolution mass spectrometry analysis in-situ PORITES coral excimer laser significant development spot size
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The practical significance of Outward Bound in colleges
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作者 Guo Zhen 《International Journal of Technology Management》 2013年第4期83-85,共3页
Outward Bound in colleges have far-reaching value and significance. Outward Bound activities in favor of school to further implement the national education policy, to promote the implementation of the Sunshine Sports ... Outward Bound in colleges have far-reaching value and significance. Outward Bound activities in favor of school to further implement the national education policy, to promote the implementation of the Sunshine Sports to promote campus spiritual civilization, to broaden the space of Physical Education; same time it is also beneficial to develop students 'interest in sport, develop students' teamwork, to promote the physical and mental health of students, improve students' social adaptability. To expand the training to maximize the function of colleges and universities, but also in the education sector especially sports workers continue to work hard, make a greater contribution to the development of universities and students. 展开更多
关键词 Outward Bound COLLEGES practical significance
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南秦岭大堡组奥陶纪洋岛玄武岩的识别及其构造意义:来自地球化学和年代学证据 被引量:25
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作者 王涛 王宗起 +3 位作者 闫臻 闫全人 张英利 向忠金 《岩石学报》 SCIE EI CAS CSCD 北大核心 2009年第12期3241-3250,共10页
秦岭造山带以商-丹构造带为界分为北秦岭和南秦岭构造带。大堡组位于南秦岭构造带内,由灰色-深灰色的泥岩、粉砂岩和炭硅板岩,以及夹含炭硅质岩、灰岩和基性火山岩块体组成。在大堡组中出露的能干上和蚂蝗峡基性岩块夹于黑色的泥岩之中... 秦岭造山带以商-丹构造带为界分为北秦岭和南秦岭构造带。大堡组位于南秦岭构造带内,由灰色-深灰色的泥岩、粉砂岩和炭硅板岩,以及夹含炭硅质岩、灰岩和基性火山岩块体组成。在大堡组中出露的能干上和蚂蝗峡基性岩块夹于黑色的泥岩之中,岩石地球化学分析结果表明,SiO_2含量为41.53%~53.59%,富TiO_2为2.14%~3.58%,REE的总量为∑REE=282.3×10^(-6),轻稀土元素较重稀土元素富集[(La/Yb)_N=8.34],略显Eu正异常(Eu~*=1.13~1.25),具有较高的Ti/Y(300~622)和Zr/Y(3.8~7.4)比值。大离子亲石元素Rb、Ba和K相对富集,无明显的Nb和Ta异常,其Nb和Ta值为N-MORB标准值的10~20倍,为典型洋岛玄武岩(OIB)地球化学特征。锆石SHRIMPⅡU-Pb测年获得能干上和蚂蝗峡基性岩块体分别形成于446Ma和455Ma。这些资料进一步表明,奥陶纪时期南秦岭存在着古洋盆。 展开更多
关键词 southern QINLING tectonic significance QINLING orogen GEOCHEMICAL characteristics GEOCHEMICAL analysis high zircon SHRIMP south QINLING
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Central and peripheral neurological involvement in monoclonal gammopathies of undetermined significance
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作者 Edvina Galiè Maria Luisa Dell’ Acqua +3 位作者 Marta Maschio Tatiana Koudriavtseva Emidio De Marco Bruno Jandolo 《World Journal of Neuroscience》 2013年第4期282-286,共5页
Several studies have suggested a pathogenetic role of paraproteinaemias in PNS damage. Over the few last years, the presence of symptomatic or subclinical PNS lesions in CNS diseases like multiple sclerosis has been d... Several studies have suggested a pathogenetic role of paraproteinaemias in PNS damage. Over the few last years, the presence of symptomatic or subclinical PNS lesions in CNS diseases like multiple sclerosis has been described. On the other hand, CNS demyelinating lesions and cervical atrophy have been re- ported in patients affected by chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Very few cases of MGUS associated with CNS disease alone or with both CNS and PNS disease have been re- ported. Since 1999, we have been studying 16 patients (8 M, 8 F), with a mean age 60.2 ± 13.4, affected by MGUS associated with symptomatic neurological central and/or peripheral diseases. Patients affected with lymphomas, lupus erithematosus and other immunological diseases were excluded. Involvement of both PNS and CNS was not associated to a particular type of paraproteinemia: monoclonal IgM were found in 8 patients;monoclonal IgG in 6 patients and mono- clonal IgA in 1 patient and Igl in 1 patient. High anti- nervous system autoantibodies were found in 10/16 patients and antiMAG antibodies were detected in patients with paraproteinemic demyelinating neuropathy (PDN). High reactivity anti-nervous system might support the hypothesis of a pathogenetic role of MGUS in these neurological diseases. Nevertheless, at present, we cannot exclude that there is only a circumstantial association between MGUS and neurological damages, particularly concerning CNS. 展开更多
关键词 Multiple Sclerosis (MS) Monoclonal Gammopathies of Undetermined significance (MGUS) PERIPHERAL Nervous SYSTEM (PNS) INVOLVEMENT Nervous SYSTEM (CNS) INVOLVEMENT CENTRAL
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扬子克拉通西缘康定杂岩中花岗质岩石的成因及其构造意义 被引量:20
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作者 刘树文 闫全人 +1 位作者 李秋根 王宗起 《岩石学报》 SCIE EI CAS CSCD 北大核心 2009年第8期1883-1896,共14页
扬子克拉通西缘康定杂岩中的片麻状花岗岩主要由英云闪长岩、花岗闪长岩、灰白色细粒二长花岗岩和少量的粉红色粗粒二长花岗岩组成。其中英云闪长岩和花岗闪长岩形成于797~795Ma,灰白色细粒二长花岗岩SHRIMP锆石定年产生一个^(206)Pb/^... 扬子克拉通西缘康定杂岩中的片麻状花岗岩主要由英云闪长岩、花岗闪长岩、灰白色细粒二长花岗岩和少量的粉红色粗粒二长花岗岩组成。其中英云闪长岩和花岗闪长岩形成于797~795Ma,灰白色细粒二长花岗岩SHRIMP锆石定年产生一个^(206)Pb/^(238)U权重平均767±24Ma,被解释为该期花岗质岩浆的结晶年龄。英云闪长岩、花岗闪长岩和灰白色细粒二长花岗岩和其中的闪长岩包体表现为右斜式稀土配分模式,具有很高的(La/Yb)_N比值,无Eu异常,在原始地幔标准化的多元素蜘蛛网状图上表现了明显的Nb、Ta、P和Ti负异常。而粉红色粗粒二长花岗岩却表现了平坦的稀土配分模式,具有强烈的负Eu异常和强烈的Nh、Ta、Sr、P和Ti负异常,但是富集大离子亲石元素。所有这些片麻状花岗岩具有ε_(Nd)(t)=-0.57~+5.67,绝大部分样品ε_(Nd)(t)>0。结合地质学、岩石学、地球化学和Sm-Nd同位素特征,康定杂岩中英云闪长岩、花岗闪长岩和灰白色细粒二长花岗岩形成于来自亏损地幔的初生地壳玄武质岩石和相关的杂砂岩在高压条件下的部分熔融,而粉红色粗粒二长花岗岩的岩浆导源于表壳岩低压条件下的部分熔融。结合这些片麻状花岗岩的岩石成因和构造鉴别,表明扬子克拉通西缘康定杂岩中新元古代片麻状花岗岩形成于安第斯型活动大陆边缘。 展开更多
关键词 西 Kangding Complex TECTONIC significance Yangtze Craton SHRIMP chronological data TECTONIC setting negative Sm-Nd
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Moral Education and the Practical Significance of Xu Heng of the Yuan Dynasty
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作者 Cui Yong 《学术界》 CSSCI 北大核心 2015年第7期297-301,共5页
The moral education of the famous educator and ideologist Xu Heng of the Yuan Dynasty mainly adopts the Neo- Confucianism,and based on naturalness and endowment,he emphasizes the importance of moral education,with the... The moral education of the famous educator and ideologist Xu Heng of the Yuan Dynasty mainly adopts the Neo- Confucianism,and based on naturalness and endowment,he emphasizes the importance of moral education,with the essence of "stressing both ethnics and heavenly principles".As a result,he advocates cultivating one' s own moral character,which bears practical significance for the moral education today. 展开更多
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南方复杂山地三维地震勘探实践与效果分析 被引量:12
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作者 敬朋贵 殷厚成 陈祖庆 《石油物探》 EI CSCD 北大核心 2010年第5期495-499,19,共5页
南方海相碳酸盐岩油气勘探历史较长,以前虽有所发现,但规模有限。近几年来,随着三维地震勘探技术的发展及其在南方复杂山地的大规模实施,中国石油化工股份有限公司相继在川东北地区海相油气勘探领域取得了巨大发现。勘探实践表明,三维... 南方海相碳酸盐岩油气勘探历史较长,以前虽有所发现,但规模有限。近几年来,随着三维地震勘探技术的发展及其在南方复杂山地的大规模实施,中国石油化工股份有限公司相继在川东北地区海相油气勘探领域取得了巨大发现。勘探实践表明,三维地震勘探技术大幅度改善了该地区的地震资料品质,为解决复杂地质问题奠定了良好的资料基础,从而提高了碳酸盐岩储层预测和描述的精度,大大加快了油气勘探节奏。从普光大型气田的探明到元坝大型礁滩体的发现,充分表明三维地震勘探技术在南方复杂海相油气勘探中发挥了不可替代的作用。 展开更多
关键词 Southern China mountainous area effect analysis practice seismic exploration
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水对硅酸盐岩体系部分熔融行为的影响:第二临界端点的重要意义 被引量:8
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作者 刘曦 张立飞 +4 位作者 HACK C Alistair 郑海飞 胡晓敏 常琳琳 何强 《岩石学报》 SCIE EI CAS CSCD 北大核心 2009年第12期3407-3421,共15页
水对硅酸盐岩体系的许多物理—化学行为有着非常重大的影响。具体对部分熔融过程来说,水可以显著地降低熔融温度、改变熔体性质、影响微量元素在固—液相之间的分配。近年来,科学家们就大量水对硅酸盐岩体系的部分熔融过程的影响进行了... 水对硅酸盐岩体系的许多物理—化学行为有着非常重大的影响。具体对部分熔融过程来说,水可以显著地降低熔融温度、改变熔体性质、影响微量元素在固—液相之间的分配。近年来,科学家们就大量水对硅酸盐岩体系的部分熔融过程的影响进行了许多的高压实验,他们主要关注第二临界端点对熔融过程的重要作用:第二临界端点的出现极大地改变着部分熔融过程中的基本相关系。本文主要针对这些高压实验研究做一总结,并对未来研究方向做一初步探讨。 展开更多
关键词 experimental studies melting process trace elements significance influence attention special
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西伯利亚克拉通南缘奥里洪地块麻粒相变质作用及构造意义 被引量:3
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作者 李晓春 于津海 +2 位作者 桑丽芹 罗莉 朱国荣 《岩石学报》 SCIE EI CAS CSCD 北大核心 2009年第12期3346-3356,共11页
早古生代西伯利亚克拉通南缘发生了大规模的增生-碰撞造山运动,本文研究的地区——奥里洪地块记录了巴尔古津微板块与西伯利亚克拉通碰撞造山的事件。对奥里洪地块出露的两种典型的高级变质岩——石榴辉石岩和石榴黑云片麻岩的矿物成分... 早古生代西伯利亚克拉通南缘发生了大规模的增生-碰撞造山运动,本文研究的地区——奥里洪地块记录了巴尔古津微板块与西伯利亚克拉通碰撞造山的事件。对奥里洪地块出露的两种典型的高级变质岩——石榴辉石岩和石榴黑云片麻岩的矿物成分分析和变质温压计算,表明它们都经历了麻粒岩相的峰期变质作用,峰期变质温度达到770~800℃,而压力曾达到1.0GPa左右;峰后的退变质作用仍具有较高的温度,但压力明显降低(700~730℃,0.65GPa和710~766℃,0.50GPa),显示了一个近等温降压(ITD)的顺时针P-T轨迹特征。石榴黑云片麻岩中变质锆石的原位LA-ICP-MS U-Pb定年表明,麻粒岩相峰期变质年龄为479±2Ma,而峰前变质可能在500Ma就已经开始。峰后的退变质作用很可能发生在475~460Ma之后。整个造山作用持续了至少35Ma。对比蒙古-图瓦地块及中国东北佳木斯-额尔古纳地块已厘定出的变质作用及岩浆活动年龄可以发现,西伯利亚克拉通南缘不同地区增生-碰撞造山作用发生的时间是不同的,奥里洪地区造山作用相对年轻。 展开更多
关键词 西 退 tectonic significance retrograde METAMORPHISM granulite facies METAMORPHISM southern Mineral composition metamorphic rocks garnet PYROXENITE collision orogeny high temperature
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Changes in Sedimentation Rate of Tidal Flat and Environmental Significance at Qidong Foreland of the Yangtze Estuary
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作者 Yunfeng ZHANG Zhenke ZHANG +1 位作者 Hang REN Yingying CHEN 《Asian Agricultural Research》 2019年第6期33-39,共7页
The sedimentation rate is an important environmental parameter to understand the evolution of coastal geomorphology. The tidal flat around Qidong foreland is located in the junction between Yangtze Estuary and Jiangsu... The sedimentation rate is an important environmental parameter to understand the evolution of coastal geomorphology. The tidal flat around Qidong foreland is located in the junction between Yangtze Estuary and Jiangsu coast,where the land-ocean interactions are strong and highly sensitive to environmental changes. The QDZ-1 core sediments collected at Qidong foreland was analyzed for137 Cs dating and grain size.The results showed that silt is the main sedimentary type with a trend of gradually fining from the bottom to the top,conforming to the sedimentation characteristic of the silt muddy tidal flat. The sedimentation rate could be divided into three distinct stages: 1963 to 1986 was 2. 61 cm/yr,1963 to 2011 was 1. 82 cm/yr,and 1986 to 2011 was 1. 10 cm/yr. Based on these,further explanation was made for the significance of environmental changes. According to the estimation of sedimentation rate,the impact of extreme environmental change was reflected by the sudden increase in sand proportion at the depth of 172. 5 cm. Since the introduction of Spartina alterniflora in the 1970 s,it has played an important role in tidal flat development. The tidal flat has a high sedimentary rate during this time. With continuous accretion of the tidal flat,low tidal flat turns to high tidal flat,the sedimentation rate gradually declines,and tidal flat sedimentation appears. 展开更多
关键词 The YANGTZE ESTUARY TIDAL flat at Qidong FORELAND Sedimentation rate 137 Cs DATING Environmental significance
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肝硬化患者血清抗心磷脂抗体的含量变化及其临床意义 被引量:1
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作者 孙剑经 徐三荣 孙大裕 《河北北方学院学报(医学版)》 2005年第1期12-16,共5页
目的:探讨肝硬化患者血清中抗心磷脂抗体(ACA)的含量变化及其与肝硬化病情的演变关系。探索抗心磷脂抗体(ACA)与Child -Pugh分级和普通肝功能及肝纤维化指标间的联系与影响。方法:应用酶联免疫吸附法(ELISA)分别对不同分级的肝硬化患者... 目的:探讨肝硬化患者血清中抗心磷脂抗体(ACA)的含量变化及其与肝硬化病情的演变关系。探索抗心磷脂抗体(ACA)与Child -Pugh分级和普通肝功能及肝纤维化指标间的联系与影响。方法:应用酶联免疫吸附法(ELISA)分别对不同分级的肝硬化患者血清中抗心磷脂抗体(ACA)的含量进行了测定;用酶法测定了ALT、AST与胆汁酸并计算AST/ALT值;用Peariman和Lee改良法测定血清胆红素;用溴甲酚氯比色法测定血清白蛋白;用放射免疫分析法测定透明质酸(HA)、Ⅲ型前胶原氮端肽(PⅢNP)、层粘连蛋白(LN )与Ⅳ型胶原(Ⅳ.C) ;并测定了凝血酶原时间(PT)与血小板计数等相关指标。结果:肝硬化患者血清抗心磷脂抗体(ACA)的阳性率Child -PughA、B、C三级逐级升高,随肝硬化病情加重而增加;血清胆红素和凝血酶原时间(PT)与ACA呈显著正相关(P <0 .0 1) ,血清白蛋白与血小板计数与ACA呈显著负相关(P <0 .0 1) ;ALT、AST、AST/ALT、胆汁酸与ACA相关无显著性(P >0 .0 5 ) ;ALT、AST、AST/ALT对ACA的影响有显著性(P <0 .0 1) ,以AST/ALT为最强;透明质酸(HA)、Ⅲ型前胶原氮端肽(PⅢNP)、层粘连蛋白(LN)及Ⅳ型胶原(Ⅳ.C)与ACA均呈显著正相关(P <0 .0 1,P <0 .0 5 ) ;HA、PⅢNP、LN、Ⅳ.C四者中,只有HA与PⅢNP对ACA的影响有显著性(P <0 .0 1) 。 展开更多
关键词 AST ALT ACA
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On the Global Significance of XI Jinping's Thought on Socialism with Chinese Characteristics for a New Era
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《华东师范大学学报(哲学社会科学版)》 CSSCI 北大核心 2018年第3期173-177,共5页
XI Jinping's thought on socialism with Chinese characteristics for a new era contains Chinesewisdom for the development of socialism in the world,Chinese experience of realizing modernization in adeveloping country... XI Jinping's thought on socialism with Chinese characteristics for a new era contains Chinesewisdom for the development of socialism in the world,Chinese experience of realizing modernization in adeveloping country,and Chinese solution to the global governing. It clarifies the theoretical puzzlement of "theend of history","the clash of civilizations"and "Western centrism",so that it plays an important role inhuman intellectual history. Therefore,one should adopt an international vision and a global perspective tounderstand and evaluate the theoretical significance and practical value of XI Jinpings thought on socialismwith Chinese characteristics for a new era. 展开更多
关键词 XI Jinpings THOUGHT on SOCIALISM with Chinese characteristics for a new era Chinesewisdom GLOBAL significance
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