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Rhizome Elongation Growth of Umbrella Bamboo(Fargesia murielae) Seedlings at Its Native Home in Central China 被引量:2
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作者 王玲 李昆 +2 位作者 孟银萍 赵丽雅 李兆华 《Agricultural Science & Technology》 CAS 2012年第5期969-971,1027,共4页
[Objective] The aim was to investigate the rhizome elongation growth of umbrella bamboo (Fargesia murielae) seedlings in China. [Method] The study was conducted in Liangfengya, Shennongjia National Nature Reserve. I... [Objective] The aim was to investigate the rhizome elongation growth of umbrella bamboo (Fargesia murielae) seedlings in China. [Method] The study was conducted in Liangfengya, Shennongjia National Nature Reserve. In the field investigation, six clumps of umbrella bamboo which grow independently were randomly selected and labeled. Rhizome elongation growth parameters, length and diameter of all the ages were measured. The age classes of bamboo rhizome were ascertained by age grade backtracking method. [Result] Field investigation suggested that at seedling phase, rhizome of umbrella bamboo prolonged very quickly under yearly time sequence, following an exponential curve. It indicated that although it was 15 years since the mother population died back, new generation had not been established its stable population yet. [Conclusion] Studying elongation regulation of umbrella bamboo may provide the theory understanding of life cycle of this long lived bamboo species. 展开更多
关键词 Fargesia murielae Cloning growth Bamboo rhizome Curve fitting Shennongjia
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DESIGN OF WAVE-SHAPED SPACE TRUSS CONSIDERING THE EFFECT OF SUBSTRUCTURE
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作者 尹越 纪刚 +2 位作者 韩庆华 程万海 刘锡良 《Transactions of Tianjin University》 EI CAS 2001年第1期44-47,共4页
The wave-shaped space truss is used as the roof of the natatorium in Tianjin University,which ingeniously displays the function of the building.In this paper,the wave-shaped space truss is analyzed and designed,consid... The wave-shaped space truss is used as the roof of the natatorium in Tianjin University,which ingeniously displays the function of the building.In this paper,the wave-shaped space truss is analyzed and designed,considering the substructure made of reinforced concrete rigid frame and the space truss working together.Also,the anti-seismic characteristic of the wave-shaped space truss is studied based on the integral model. 展开更多
关键词 wave-shaped space truss effect of substructure anti-seismic design
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Treatment of malignant gastric outlet obstruction with endoscopically placed self-expandable metal stents 被引量:12
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作者 Jill KJ Gaidos Peter V Draganov 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第35期4365-4371,共7页
Malignant gastroduodenal obstruction can occur in up to 20%of patients with primary pancreatic,gastric or duodenal carcinomas.Presenting symptoms include nausea,vomiting,abdominal distention,pain and decreased oral in... Malignant gastroduodenal obstruction can occur in up to 20%of patients with primary pancreatic,gastric or duodenal carcinomas.Presenting symptoms include nausea,vomiting,abdominal distention,pain and decreased oral intake which can lead to dehydration, malnutrition,and poor quality of life.Endoscopic stent placement has become the primary therapeutic modality because it is safe,minimally invasive,and a cost-effective option for palliation.Stents can be successfully deployed in the majority of patients. Stent placement appears to lead to a shorter time to symptomatic improvement,shorter time to resumption of an oral diet,and shorter hospital stays as compared with surgical options.Recurrence of the obstructive symptoms resulting from stent occlusion,due to tumor ingrowth or overgrowth,can be successfully treated with repeat endoscopic stent placement in the majority of the cases.Both endoscopic stenting and surgical bypass are considered palliative treatments and,to date,no improvement in survival with either modality has been demonstrated.A tailored therapeutic approach,taking into consideration patient preferences and involving a multidisciplinary team including the therapeutic endoscopist,surgeon,medical oncologist, radiation therapist,and interventional radiologist, should be considered in all cases. 展开更多
关键词 Malignant gastric outlet obstruction Endoscopic self-expandable metal stent Palliativetreatment ENDOSCOPY
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Endoscopic stenting and concurrent chemoradiotherapy for advanced esophageal cancer:A case-control study 被引量:4
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作者 Xiang-Jun Jiang Ming-Quan Song +3 位作者 Yong-Ning Xin Yu-Qiang Gao Zi-Yu Niu Zi-Bin Tian 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第12期1404-1409,共6页
AIM:To evaluate the role of endoscopic stenting with or without concurrent 3-dimensional conformal chemoradiotherapy (3D-CRT) in patients with inoperable esophageal cancer.METHODS:Advanced esophageal cancer patients i... AIM:To evaluate the role of endoscopic stenting with or without concurrent 3-dimensional conformal chemoradiotherapy (3D-CRT) in patients with inoperable esophageal cancer.METHODS:Advanced esophageal cancer patients indicated for esophagectomy received esophageal stents.A part of patients completed 3D-CRT after stenting.Efficacy was assessed by endoscopy and computed tomographic scan before and 4 wk after completion of the treatment.The median survival,3D-CRT toxicity and complications were compared between 3D-CRT and control groups.RESULTS:From 1999 to 2008,99 consecutive patients with T3/T4 disease and unsuitable for esophagectomy were placed with esophageal stents.Sixty-seven patients received 3D-CRT,while 36 patients treated withendoscopic stents alone were recruited as controls.After 3D-CRT treatment,the median tumor volume of 3D-CRT patients were reduced significantly from 43.7 ± 10.2 cm 3 to 28.8 ± 8.5 cm 3 (P < 0.05).The complete and partial response rate was 85.1%,and no response was 14.9%.After 3D-CRT,the incidence rate of T2 and T3 disease evident on CT scan increased to 78.4% while T4 decreased from 66.7% to 21.6% (P < 0.05).3DCRT Karnofsky Performance Status improved in 3D-CRT patients compared with the control group (P=0.031).3D-CRT patients had a longer survival than the control group (251.7 d vs 91.1 d,P < 0.05).And the median half-year survival rate in 3D-CRT group (91%) was higher than in the control group (50%,P < 0.05).The most common toxicity was leukocytopenia in the 3D-CRT group (46.7% vs 18.8%,P=0.008).The control group had a higher rate of restenosis than the 3D-CRT group (81.3% vs 9.0%,P < 0.05).The rate of nephrotoxicity was increased in 3D-CRT as compared with the control group (31.3% vs 15.6%,P < 0.05).CONCLUSION:3D-CRT can improve dysphagia in patients with inoperable esophageal carcinoma.3D-CRT combined with stenting results in better survival as compared with endoscopic stents used alone. 展开更多
关键词 Esophageal Cancer STENTS Chemoradiothe-rapy Three-dimensional imaging Case control study
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An unusual cause ofileal perforation:Report of a case and literature review 被引量:2
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作者 Sami Akbulut Bahri Cakabay +2 位作者 Cihan Akgul Ozmen Arsenal Sezgin Mahsuni Mert Sevinc 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第21期2672-2674,共3页
An ileal perforation resulting from a migrated biliary stent is a rare complication of endoscopic stent placement for benign or malignant biliary tract disease.We describe the case of a 59-year-old woman with a histor... An ileal perforation resulting from a migrated biliary stent is a rare complication of endoscopic stent placement for benign or malignant biliary tract disease.We describe the case of a 59-year-old woman with a history of abdominal surgery in which a migrated biliary stent resulted in an ileal perforation.Patients with comorbid abdominal pathologies,including colonic diverticuli,parastomal hernia,or abdominal hernia,may be at increased risk of perforation from migrated stents. 展开更多
关键词 ADHESION Biliary stent Ileal perforation Migration CHOLEDOCHOLITHIASIS
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Progression of Femmephobia in the LGBTQ+ Community
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作者 James Stair 《Journalism and Mass Communication》 2017年第8期465-471,共7页
All around, men are raised not to be a "sissy", "gay", or a "faggot". Gay men are, then sculpted by a masculinity framework that, from their early years, will not fully accept them. In an attempt to be accepted,... All around, men are raised not to be a "sissy", "gay", or a "faggot". Gay men are, then sculpted by a masculinity framework that, from their early years, will not fully accept them. In an attempt to be accepted, gay men often try to make up for their homosexuality through the performance of masculinity centered on suppression of the feminine. Femmephobia, in this context, is the suppression or rejection of feminine features. In the LGBTQ+ community, femmephobia is driven by the media and masculinity factors that are manifested in standards of attractiveness, but can also be broken down by media outlets that combat these ideas. Media has shaped gay men's perception of body image, standards of beauty, and have led to the progression of femmephobia within the community as a mode of restoring their masculinity that would not accept them. The introduction of alternative ideas of masculinity and gender perception are necessary for creating an inclusive form of masculinity that would promote a greater acceptance of all, and reduce femmephobia in society. Challenges against this masculinity are at work through various routes especially through the media. These venues are creating spaces where male femininity can be further explored and redefined. 展开更多
关键词 femmephobia FEMINISM LGBTQ+ MASCULINITY media MEN MSM
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Comparison of treatment outcomes between biliary plastic stent placements with and without endoscopic sphincterotomy for inoperable malignant common bile duct obstruction 被引量:9
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作者 PietroDiGiorgio LeonardoDeLuca 《World Journal of Gastroenterology》 SCIE CAS CSCD 2004年第8期1212-1214,共3页
AIM:Considerable controversy surrounds the adoption of endoscopic sphincterotomy(ES)to facilitate the placement of 10F plastic stents(PS)and to reduce the risk of pancreatitis The aim of the study was to assess the po... AIM:Considerable controversy surrounds the adoption of endoscopic sphincterotomy(ES)to facilitate the placement of 10F plastic stents(PS)and to reduce the risk of pancreatitis The aim of the study was to assess the possible advantages of ES before PS placement. METHODS:From 3/1996 to 6/2001,172 consecutive patients, who underwent placement of a single 10F-polyethylene stent for inoperable malignant strictures of the common bile duct,were randomly assigned to 2 groups.In group A(96 patients),a ES was performed before PS placement In Group B,96 patients had PS directly.Early complications(within 30 d)and late effects(from 30 d to stent replacement)were assessed.Patency interval was defined as the period between PS placement and obstruction or death.The success of stent replacement in the 2 groups was evaluated. RESULTS:Stent insertion was successful in 95.8%(92/96) of the pts in group A and in 93.7%(90/96)of the patients in group B(P>0.05).Early complications were more frequent in patients who underwent ES(6.5% vs4.4%)but the data were not significant(P>0.05).In group A pancreatitis developed in two patients and bleeding in three;whereas pancreatitis occurred in 2 patients in group B.Complications were managed conservatively.No procedure related mortality occurred.All late complications were acute cholangitis due to stent occlusion.We performed a stent replacement in 87 patients that was successful in 84 cases without differences between groups. CONCLUSION:Sphincterotomy does not seem to be necessary for placement of 10F-PS in patients with malignant common bile duct obstruction. 展开更多
关键词 STENTS Aged Aged 80 and over Cholangiocarcinoma Cholestasis Extrahepatic Comparative Study Endoscopy Gastrointestinal Female Humans Lymphatic Metastasis Male Pancreatic Neoplasms Pancreatitis control Plastics Postoperative Complications Risk Reduction Behavior Sphincter of Oddi
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Framed-Quadtree Path Planning for an Underwater Vehicle with the Task of Tracking a Moving Target 被引量:1
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作者 高博 徐德民 严卫生 《Journal of Marine Science and Application》 2010年第1期27-33,共7页
An autonomous underwater vehicle (AUV) must use an algorithm to plan its path to distant, mobile offshore objects. Because of the uneven distribution of obstacles in the real world, the efficiency of the algorithm dec... An autonomous underwater vehicle (AUV) must use an algorithm to plan its path to distant, mobile offshore objects. Because of the uneven distribution of obstacles in the real world, the efficiency of the algorithm decreases if the global environment is represented by regular grids with all of them at the highest resolution. The framed quadtree data structure is able to more efficiently represent the environment. When planning the path, the dynamic object is expressed instead as several static objects which are used by the path planner to update the path. By taking account of the characteristics of the framed quadtree, objects can be projected on the frame nodes to increase the precision of the path. Analysis and simulations showed the proposed planner could increase efficiency while improving the ability of the AUV to follow an object. 展开更多
关键词 regular grid framed quadtree data structure algorithm efficiency
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A Pragmatic Analysis of Discourse Connectives in the Framework of Relevance Theory
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作者 ZHOU Da-jun REN Miao-miao MING Rui-long 《Sino-US English Teaching》 2018年第1期28-31,共4页
Discourse connectives can be dealt with in relevance-theoretic terms, as indicators of types of relevance. These connectives can be used to constrain the interpretation of an utterance. They are analyzed in a broad cl... Discourse connectives can be dealt with in relevance-theoretic terms, as indicators of types of relevance. These connectives can be used to constrain the interpretation of an utterance. They are analyzed in a broad classification outlined in discourse connectives which introduce contextual implications, which are concerned with strengthening and which introduce denials. A relevance based approach to discourse is a more adequate framework than a coherence based one for the analysis of discourse connectives. 展开更多
关键词 PRAGMATICS discourse connective relevance theory
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TransJ: An Abstract Independent-Framework for Weaving Crosscutting Concern into Distributed Transactions
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作者 Anas M. R. AlSobeh Stephen W. Clyde 《Computer Technology and Application》 2016年第4期173-195,共23页
Implementing crosscutting concerns for transactions is difficult, even using aspect-oriented programming languages such as AspectJ. Many of these challenges arise because the context of a transaction-related crosscutt... Implementing crosscutting concerns for transactions is difficult, even using aspect-oriented programming languages such as AspectJ. Many of these challenges arise because the context of a transaction-related crosscutting concern consists of loosely-coupled abstractions like dynamically-generated identifiers, timestamps, and tentative value sets of distributed resources. Current aspect-oriented programming languages do not provide joinpoints and pointcuts for weaving advice into high-level abstractions or contexts, like transaction contexts. To address these problems, we propose an extension to AspectJ framework, called TransJ, that allows developers to define pointcuts in terms of transaction abstractions and that automatically keeps track of context information for transactions. This paper describes TransJ as an abstract independent framework for weaving crosscutting concerns into high-level runtime abstractions, with which developers can implement transaction-related crosscutting concerns in modular, cohesive and loosely coupled transaction-aware aspects. Finally, this paper presents eight different ways in which TransJ can improve the reuse with preserving the performance of applications requiring transactions. Informally, these hypotheses are that TransJ yields (1) better encapsulation and separation of concern; (2) looser coupling and less scattering; (3) higher cohesion and less tangling; (4) reduces complexity; (5) improves obliviousness; (6) preserves efficiency; (7) improves extensibility; and (8) hastens the productivity. A brief discussion of experiment to test the hypotheses is provided, but the details of the experiment are left for another paper. 展开更多
关键词 AOP ASPECTJ TRANSACTION joinpoint model context crosscutting concern encapsulation high-level abstractions MODULARITY reuse.
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Comprehensively Context-Aware Approach to Guaranteeing Multimedia Conferencing Services
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作者 吴冀衍 田岳 +1 位作者 程渤 商彦磊 《China Communications》 SCIE CSCD 2013年第9期53-64,共12页
Service-Oriented Communication(SOC)is a key research issue to enable media communications using the Service-Oriented Architecture(SOA).Motivated by the necessity to guarantee the service quality of our webbased multim... Service-Oriented Communication(SOC)is a key research issue to enable media communications using the Service-Oriented Architecture(SOA).Motivated by the necessity to guarantee the service quality of our webbased multimedia conferencing system,we present a Comprehensively Context-Aware(CoCA)approach in this paper.One major problem in the existing end-to-end Quality of Service(QoS)management solutions is that they analyse and exploit the relationships between the QoS metrics and corresponding contexts in an isolated manner.In this paper,we propose a novel approach to leveraging such relationships in a comprehensive manner based on Bayesian networks and the fuzzy set theory.This approach includes three phases:1)information feedback and training,2)QoS-to-context mapping,and3)optimal context adaption.We implement the proposed CoCA in the real multimedia conferencing system and compare its performance with the existing bandwidth aware and playback buffer aware schemes.Experimental results show that the proposed CoCA outperforms the competing approaches in improving the average video Peak Signal-to-Noise Ratio(PSNR).It also exhibits good performance in preventing the playback buffer starvation. 展开更多
关键词 SOC multimedia conferencing CONTEXT-AWARE
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Three Gorges Dam Controls Sediment Coarsening of the Mud Patch on the Inner East China Sea Shelf 被引量:2
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作者 MIAO Anyang CHU Zhongxin LI Yingkun 《Journal of Ocean University of China》 SCIE CAS 2016年第3期414-422,共9页
The well-known Three Gorges Dam(TGD) within the Yangtze catchment launched its operation in 2003. The effect of the TGD operation on the sediment size on the East China Sea shelf is rarely known. High resolution(0.5 c... The well-known Three Gorges Dam(TGD) within the Yangtze catchment launched its operation in 2003. The effect of the TGD operation on the sediment size on the East China Sea shelf is rarely known. High resolution(0.5 cm sampling) grain size analysis and 137 Cs and 210 Pb dating of the DH8-1 core were conducted with core collected from the distal part of a main sink for the modern Yangtze sediment entering the sea, the Min-Zhe Coastal Mud Deposits(MZCMD) on the inner East China Sea shelf. The 137 Cs dating results show that the core DH8-1 formed during 1946–2012 with a mean deposition rate of 0.65 cm yr^(-1), indicating that the 0.5 cm sampling for grain size analysis in this local area could reflect environmental changes generally on a one-year time scale. The mean grain size of DH8-1 core sediment that deposited after 2003 is significantly larger than that deposited during 1988–2002. After ruling out other possible factors, we infer that the sediment coarsening of DH8-1 core after 2003 is attributed to the TGD operation which causes the erosion of the Yangtze subaqueous delta. Specifically, the TGD operation significantly intensifies the declining trend of the Yangtze sediment loads to the sea despite no decreased water discharge, which results in extensive erosion of the Yangtze subaqueous delta. The relatively coarse sediment of the subaqueous delta is eroded and resuspended by ocean dynamics and then transported by coastal current, finally depositing on the MZCMD area. In addition, the general sediment fining of core DH8-1 that deposited during 1988–2002, comparing with 1946–1987, is mainly caused by dam construction and soil and water conservation within the Yangtze catchment. Our findings are helpful for better understanding the effects of such a huge dam as the TGD on a sediment sink like the MZCMD of such a large river as the Yangtze River. 展开更多
关键词 Three Gorges Dam environmental effect East China Sea grain size analysis isotopic dating
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Clustering Approaches for Overhead Reduction over Coordinated Multiple Points Network-MIMO Downlink Systems
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作者 Xiao Shanghui Zhang Zhongpei Shi Zhiping 《China Communications》 SCIE CSCD 2010年第5期103-111,共9页
Owing to the potential for intercell cochannel interference mitigation and significant spectral efficiency improvement, coordinating transmission techniques by multiple radio access points have recently attracted a lo... Owing to the potential for intercell cochannel interference mitigation and significant spectral efficiency improvement, coordinating transmission techniques by multiple radio access points have recently attracted a lot of attention. In this paper, the system structure and mathematical signal model based on clustered structure are presented for multipoint coordinating downlink transmission, the clustered supercell configurations with static/dynamic approaches are discussed, and then optimal precod- ing design is provided for an accepted level of scheduling complexity and reduced signaling over- head. Some simulation results are given to evaluate the performance of different cell-clustering approaches, and to show that a clustered supercell size of 7 is a reasonable choice for clustered coordination with the given transmit power and the reduced feedback. 展开更多
关键词 overhead reduction clustering approa-ches SUPERCELL MIMO ss STEMS cooperative com-munication
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Apocalypse and Body Transgression: On Picasso’s Crucifixion (1930)
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作者 Zarko Paic 《Cultural and Religious Studies》 2018年第4期248-266,共19页
The article deals with the question of the possibility of a new interpretation of Picasso’s picture entitled Crucifixion, which was created in the context of the art paradigm shift in the 1930s when the master focuse... The article deals with the question of the possibility of a new interpretation of Picasso’s picture entitled Crucifixion, which was created in the context of the art paradigm shift in the 1930s when the master focused his attention to the return to painting as a reference framework of myth and religion. But this return was only a turning point towards a modern understanding of the world and art from other sources. It should be noted that the problem of pictorial turn nowadays has a strong impact on the postmodern theology, which encompasses various cultural traditions, and also quite opposite philosophical attitudes. The article shows, thus, the inner relationship and connection between painting art and the search for transgression in the language that was the idea of Bataille. In the first part of this article, author tries to show the consequences of Bataille’s thinking of transgression; the second part has attempted to articulate the problems of interpretation of Picasso’s canvas Crucifixion; and concluding remarks is an attempt to review the emphasis on relationship with pictorial turn and transformations in the notion of contemporary art concerning the body as a sovereign event of the freedom and sacrifice. 展开更多
关键词 APOCALYPSE body transgression PICASSO BATAILLE crucifixion pictorial turn
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Clinical observation of Furongtongmai capsule on the lower extremity Atherosclerotic Occlusive Disease after Intervention Operation
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作者 Wei Yao Xiu-Hai Su +7 位作者 Yuan-Song Wang Yan-Ling Du Zhan-Yi Gao Yin-Sheng Gao Na Li Na-Na Feng Qing Chen Hua Guo 《TMR Modern Herbal Medicine》 2018年第4期203-208,共6页
Objective To investigate the effect of Furongtongmai capsule on the in-stent restenosis (ISR) of superficial femoral artery after interventional operation in lower extremity Arteriosclerosis Occlusion (ASO).... Objective To investigate the effect of Furongtongmai capsule on the in-stent restenosis (ISR) of superficial femoral artery after interventional operation in lower extremity Arteriosclerosis Occlusion (ASO). Methods: A total of 110 inpatients with ASO who performed Superficial femoral artery stent implantation were randomly divided into observation group and control group, with 55 cases in each group.Both groups received Aspirin 100 mg/d and Clopidogrel 75 mg/d. The observation group was given Furongtongmai capsule on the basis of routine treatment. After continuous treatment for 6 months, the clinical efficacy, Ankle Brachial Index (ABI), high-sensitivity C-reactive protein (Hs-CPR) and ISR were compared between the two groups. Results: At 6 months after operation, the plasma levels of Hs-CRP in the two groups were significantly lower than those in the control group (P 〈 0.05). The ABI of treatment group was significantly higher than the control group (P 〈 0.05). There was a statistically significant difference in ISR incidence between the treatment group and the control group 6 months after surgery (9.09% vs 27.78%, P 〈 0.05). Conclusion: Furongtongmai Capsule can inhibit Hs-CRP in patients with ASO after femoral artery intervention, improve the ankle brachial index and reduce the incidence of ISR. 展开更多
关键词 Furongtongmai capsule Lower extremity atherosclerotic occlusive disease intervention operation restenosis rate HS-CRP
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下架(外一篇)
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作者 李更 《文学自由谈》 2016年第3期144-148,共5页
那天有人问我,最近还买书吗?这才发现确乎已经好几年不大买书了。
关键词 中国 当代文学 杂文 《下架》
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Untangling the interactions among the Sustainable Development Goals in China 被引量:7
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作者 Junze Zhang Shuai Wang +2 位作者 Prajal Pradhan Wenwu Zhao Bojie Fu 《Science Bulletin》 SCIE EI CSCD 2022年第9期977-984,M0004,共9页
Understanding the interactions(synergies and trade-offs)among the Sustainable Development Goals(SDGs)is crucial for enhancing policy coherence between different sectors.However,spatial differences in the SDG interacti... Understanding the interactions(synergies and trade-offs)among the Sustainable Development Goals(SDGs)is crucial for enhancing policy coherence between different sectors.However,spatial differences in the SDG interactions and their temporal variations at the sub-national scale are still critical gaps that need to be urgently filled.Here,we assess the spatial and temporal variation of the SDG interactions in China based on the systematic classification framework of SDGs.The framework groups the seventeen SDGs into three categories,namely“Essential Needs”“Objectives”,and“Governance”.Spatially,we found that the SDGs in“Essential Needs”&“Objectives”and“Essential Needs”&“Governance”generally show trade-offs in the eastern provinces of China.Synergies among all three SDG categories are observed in some central and western China provinces,which implies that these regions conform to sustainable development patterns.In addition,temporally,the synergies of the three SDG categories have shown a weakening trend in the last decade,mainly due to the regional differences in the progress of SDG7(Affordable and Clean Energy).Overall,our results identify the necessity for provinces to enhance the synergies between SDG12(Responsible Production and Consumption)and other SDGs to tackle the trade-offs between the“Essential Needs”and“Objectives”.Meanwhile,promoting the progress of SDG7 will also contribute to balanced development across provinces. 展开更多
关键词 Sustainable Development Goals Essential needs GOVERNANCE Objectives INTERACTIONS
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Mallet finger deformities treated by buried purse-string suture 被引量:5
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作者 YAO Jian-min ZHAO Feng-jing 《Chinese Journal of Traumatology》 CAS 2011年第4期237-240,共4页
Objective: To investigate the efficacy of buried purse-string suture in the treatment of mallet finger deformities. Methods: From February 2009 to February 2010, 12 patients with closed non-fracture mallet fingers ... Objective: To investigate the efficacy of buried purse-string suture in the treatment of mallet finger deformities. Methods: From February 2009 to February 2010, 12 patients with closed non-fracture mallet fingers were treated by buried purse-string suture. The rupture tendons were sutured by purse-string suture with an atraumatic needle, and the knots were buried under subcutaneous tissue. External fixator was used at the extension position of the finger every night within three weeks after operation. Results: All patients were followed up for 6-12 months, mean 7 months. According to the Patel's evaluation criteria, 2 cases (17%) obtained excellent results, 7 good (58%), 2 fair (17%) and 1 poor (8%). The overall rate of the cases with excellent and good outcomes was 75%. Conclusion: Buried purse-string suture is an easy and effective way to treat mallet finger deformities, with no serious postoperative complications or no need for reoperation. 展开更多
关键词 Tendon injuries Finger injuries Suture techniques External fixator
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The relationship between extension of lower crust and displacement of the shelf break 被引量:3
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作者 ZHANG YunFan SUN Zhen PANG Xiong 《Science China Earth Sciences》 SCIE EI CAS 2014年第3期550-557,共8页
With deep sea petroleum explorations become more and more popular,some geological phenomena have emerged:extension of lower crust and upper crust is inhomogeneous;shelf break has been moved rapidly after crustal stret... With deep sea petroleum explorations become more and more popular,some geological phenomena have emerged:extension of lower crust and upper crust is inhomogeneous;shelf break has been moved rapidly after crustal stretching.These geological phenomena are important to the continental margin evolution.To investigate the thinning of the whole crust and the contribution of the upper crust versus the lower crust to the crustal stretching since the Cenozoic,we calculated the stretching factors of the upper and the lower crust based on the 13 seismic lines in the Baiyun Sag from CNOOC.The results indicated that the whole crustal thickness decreases seaward while the whole crustal stretching factor increases from shelf to slope.Our calculations showed that the lower crustal stretching factor is higher than that of the upper crust in the Baiyun Sag.In the Cenozoic,deformation of the Baiyun Sag is controlled mainly by ductile shearing rather than brittle shearing.Based on the numerical modeling,we can conclude the initial crust in the Baiyun Sag is thermally attenuated.The stretching factor(β)of the lower crust increases from the north to the south of the continental margin,indicating two stretching centers:the Baiyun Sag and the Liwan Sag.The geometry of the shelf break and theβisoline trap have the similar trend in 23.8 and 13.8 Ma,both located in the intense deforming zone of the lower crust,and therefore we conclude the stretching and flowing of the lower crust cause the displacement of the shelf break before and after 23.8 Ma. 展开更多
关键词 Baiyun Sag shelf break stretching factor lower crustal extension
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Efficient and flexible memory architecture to alleviate data and context bandwidth bottlenecks of coarse-grained reconfigurable arrays 被引量:2
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作者 YANG Chen LIU Lei Bo +1 位作者 YIN Shou Yi WEI Shao Jun 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2014年第12期2214-2227,共14页
The computational capability of a coarse-grained reconfigurable array(CGRA)can be significantly restrained due to data and context memory bandwidth bottlenecks.Traditionally,two methods have been used to resolve this ... The computational capability of a coarse-grained reconfigurable array(CGRA)can be significantly restrained due to data and context memory bandwidth bottlenecks.Traditionally,two methods have been used to resolve this problem.One method loads the context into the CGRA at run time.This method occupies very small on-chip memory but induces very large latency,which leads to low computational efficiency.The other method adopts a multi-context structure.This method loads the context into the on-chip context memory at the boot phase.Broadcasting the pointer of a set of contexts changes the hardware configuration on a cycle-by-cycle basis.The size of the context memory induces a large area overhead in multi-context structures,which results in major restrictions on application complexity.This paper proposes a Predictable Context Cache(PCC)architecture to address the above context issues by buffering the context inside a CGRA.In this architecture,context is dynamically transferred into the CGRA.Utilizing a PCC significantly reduces the on-chip context memory and the complexity of the applications running on the CGRA is no longer restricted by the size of the on-chip context memory.Data preloading is the most frequently used approach to hide input data latency and speed up the data transmission process for the data bandwidth issue.Rather than fundamentally reducing the amount of input data,the transferred data and computations are processed in parallel.However,the data preloading method cannot work efficiently because data transmission becomes the critical path as the reconfigurable array scale increases.This paper also presents a Hierarchical Data Memory(HDM)architecture as a solution to the efficiency problem.In this architecture,high internal bandwidth is provided to buffer both reused input data and intermediate data.The HDM architecture relieves the external memory from the data transfer burden so that the performance is significantly improved.As a result of using PCC and HDM,experiments running mainstream video decoding programs achieved performance improvements of 13.57%–19.48%when there was a reasonable memory size.Therefore,1080p@35.7fps for H.264high profile video decoding can be achieved on PCC and HDM architecture when utilizing a 200 MHz working frequency.Further,the size of the on-chip context memory no longer restricted complex applications,which were efficiently executed on the PCC and HDM architecture. 展开更多
关键词 memory architecture CGRA context cache cache prefetch data memory
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