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Crohn’s disease of esophagus,stomach and duodenum 预览
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作者 Andréa Maia Pimentel Raquel Rocha Genoile Oliveira Santana 《世界胃肠药理与治疗学杂志:英文版(电子版)》 2019年第2期35-49,共15页
Crohn’s disease with involvement of the esophagus,stomach and duodenum has a prevalence of 0.5%to 4%in symptomatic adult patients,but some studies have shown that these results may be underestimated,since upper gastr... Crohn’s disease with involvement of the esophagus,stomach and duodenum has a prevalence of 0.5%to 4%in symptomatic adult patients,but some studies have shown that these results may be underestimated,since upper gastrointestinal endoscopy is not performed routinely in the initial evaluation of the disease in adult patients,as it is in the pediatric population.In general,involvement of the upper gastrointestinal tract in Crohn’s disease occurs concomitantly with involvement of the lower gastrointestinal tract.The diagnosis depends on clinical,endoscopic,histological and radiological evaluation.The presence of aphthoid ulcers,longitudinal ulcers,bamboo-joint-like appearance,stenoses and fistulas are endoscopic findings suggestive of the disease,and it is important to exclude the presence of Helicobacter pylori infection.The primary histological findings,which facilitate the diagnosis,are the presence of a chronic inflammatory process with a predominance of lymphoplasmacytic cells and active focal gastritis.The presence of epithelioid granuloma,although less frequent,is highly suggestive of the disease in the absence of chronic granulomatous disease.Treatment should include the use of proton pump inhibitors associated with corticosteroids,immunomodulators and biological therapy according to the severity of the disease. 展开更多
关键词 Crohn’s disease UPPER gastrointestinal tract UPPER digestive endoscopy ESOPHAGUS STOMACH DUODENUM Chronic GASTRITIS Focal GASTRITIS EPITHELIOID granuloma
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Theoretical Analysis of Bearing Capacity of Shallowly Embeded Rectangular Footing of Marine Structures 预览
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作者 ZHANG Qiyi WU Shaoxuan +1 位作者 WU Liangpeng LIU Zhijie 《中国海洋大学学报:英文版》 SCIE CAS CSCD 2019年第1期123-132,共10页
In this paper,the finite element analysis software ABAQUS is used to analyze the ultimate bearing capacity of three-dimensional rectangular footing of marine structures.The deformation law and the failure mode of homo... In this paper,the finite element analysis software ABAQUS is used to analyze the ultimate bearing capacity of three-dimensional rectangular footing of marine structures.The deformation law and the failure mode of homogeneous seabed soil beneath the rectangular footing are analyzed in detail.According to the equivalent plastic strain of soil under rectangular footing,an allowable velocity field of homogeneous seabed soil is reasonably constructed.Based on the plastic limit analysis theory of soil mass and by using the Mohr-Coulomb yield criterion,an upper bound solution of the ultimate bearing capacity of three-dimensional rectangular footing on general homogeneous seabed soil is derived,and a correction factor of ultimate bearing capacity of three-dimensional rectangular footing is given.To verify the rationality and applicability of this theoretical solution,some numerical solutions are achieved using the general-purpose FEM analysis package ABAQUS,and comparisons are made among the derived upper bound solution,the solution of Vesic,and the solution of Salgado et al.The results indicate that the upper bound solution of the three-dimensional shallowly embedded rectangular footing proposed in this paper is accurate in calculating the bearing capacity of homogeneous seabed soil.For undrained saturated clay foundation and sandy foundation with smaller internal friction angle,this upper bound solution can evaluate the ultimate bearing capacity of rectangular footing;with the gradual increase of the internal friction angle of the soil,the ultimate bearing capacity of the proposed upper bound solution is slightly higher than that of the rectangular footing. 展开更多
关键词 upper BOUND analysis velocity field ULTIMATE bearing capacity RECTANGULAR FOOTING ABAQUS
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Water in the upper mantle and deep crust of eastern China: concentration, distribution and implications
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作者 Qun-Ke Xia Jia Liu +5 位作者 István Kovács Yan-Tao Hao Pei Li Xiao-Zhi Yang Huan Chen Ying-Ming Sheng 《国家科学评论:英文版》 CSCD 2019年第1期125-144,共20页
Understanding the concentration and distribution of water in the Earth’s mantle plays a substantial role in studying its chemical, physical and dynamic processes. After a decade of research, a comprehensive dataset o... Understanding the concentration and distribution of water in the Earth’s mantle plays a substantial role in studying its chemical, physical and dynamic processes. After a decade of research, a comprehensive dataset of water content in upper-mantle samples has been built for eastern China, which is now the only place with water-content data from such diverse types of natural samples, and provides an integrated picture of the water content and its distribution in the upper mantle at a continental scale. The main findings include the following:(i) the temporal heterogeneity of the water content in the lithospheric mantle from early Cretaceous(~120 Ma) to Cenozoic(<40 Ma) was tightly connected with the stability of the North China Craton(from its destruction to its consolidation);(ii) the heterogeneous water content in the Cenozoic lithospheric mantle beneath different blocks of eastern China was not only inherited from tectonic settings from which they came, but was also affected later by geological processes they experienced;(iii) the distinct water content between the lowermost crust and lithospheric mantle of eastern China and its induced rheological contrast at the base of the crust indicate that the continental crust–mantle boundary could behave either in a coupled or decoupled manner beneath different areas and/or at different stages;(iv) the alkali basalts of eastern China demonstrate a heterogeneous distribution of water content in the mantle;local and regional comparisons of the water content between the lithospheric mantle and basalts’ source indicate that the Cenozoic alkali basalts in eastern China were not sourced from the lithospheric mantle.Instead, the inferred high water contents in the mantle sources suggest that the Cenozoic eastern China basalts were likely sourced from the mantle transition zone(MTZ);and(v) both oceanic and continental crusts may carry a certain amount of water back into the deep mantle of eastern China by plate subduction.Such recycled crustal materials have not only crea 展开更多
关键词 WATER upper MANTLE and deep CRUST CONTINENTAL stability BASALT genesis eastern China
Asymptotic behavior for sums of non-identically distributed random variables 预览
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作者 YU Chang-jun CHENG Dong-ya 《高校应用数学学报:英文版(B辑)》 SCIE CSCD 2019年第1期45-54,共10页
For any given positive integer m,let Xi,1≤i≤m be m independent random variables with distributions Fi,1≤i≤m.When all the summands are nonnegative and at least one of them is heavy-tailed,we prove that the lower li... For any given positive integer m,let Xi,1≤i≤m be m independent random variables with distributions Fi,1≤i≤m.When all the summands are nonnegative and at least one of them is heavy-tailed,we prove that the lower limit of the ratio P(∑i=1^mXi>x)/∑i=1^mFi(x)equals 1 as x→∞.When the summands are real-valued,we also obtain some asymptotic results for the tail probability of the sums.Besides,a local version as well as a density version of the above results is also presented. 展开更多
关键词 lower limits UPPER limits heavy-tailed DISTRIBUTIONS local DISTRIBUTIONS DENSITIES
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Floristic Study of Vascular Plants in Typical Plant Communities in the Middle and Upper Reaches of the Yarlung Zangbo River 预览
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作者 GE Qingsong QU Xingle +2 位作者 LUO Daqing ZHENG Weilie FANG Jiangping 《景观研究:英文版》 2019年第5期123-129,134共8页
[Objective] Species composition and flora of vascular plants in the middle and upper reaches of the Yarlung Zangbo River were analyzed,to provide scientific basis for the estimation and protection of plant diversity,c... [Objective] Species composition and flora of vascular plants in the middle and upper reaches of the Yarlung Zangbo River were analyzed,to provide scientific basis for the estimation and protection of plant diversity,construction of ecological security shelter for the Tibetan Plateau.[Methods] In the middle and upper reaches of the Yarlung Zangbo River,quadrat (line transect) method was applied to investigate the phytocoenoses in sample plots,and relative literature was used to analyze the floristic composition and floristic element of vascular plants in the middle and upper reaches of the Yarlung Zangbo River.[Results]① There are 96 species (including subspecies and variations),69 genera of 35 vascular plant families,accounting for 16.83%,5.48%,1.66% and 11.63%,2.02%,0.31% of total vascular plant families,genera and species in Tibet and China.② There are 24 monotypic-genus families,accounting for 68.57% of the total family number in the local area;22 monotypic-species families,accounting for 62.86% of the total family number in the local area.Local flora shows the characteristics of ancient relict,such as Euphorbiaceae,Rubiaceae,Liliaceae and Ranunculaceae,they are all ancient primitive groups of the third flora and the fourth flora.③ Local vascular plant genera fall into 10 areal types and 8 variations.④ Temperate elements are much more than tropical elements,R/T is 0.19,indicating that vascular plants have typical temperate nature and residual tropical nature.There are only a few endemic genera,but more endemic species to the local area,and these species are closely related,of which there are some transitional species,indicating that local flora is too young to experience more differentiation and specialization.⑤ There are 24 Chinese endemic species,accounting for 25% of total number of species in the local area;among which there are 12 endemic species to Tibet,accounting for 50% of endemic species to China,12.5% of total number of species in the local area.Four key wild plant species are included in 展开更多
关键词 The middle and UPPER reaches of the Yarlung Zangbo RIVER TYPICAL plant community Vascular plants FLORA
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Using remotely sensed and climate data to predict the current and potential future geographic distribution of a bird at multiple scales:the case of Agelastes meleagrides,a western African forest endemic 预览
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作者 Benedictus Freeman Daniel Jiménez-García +1 位作者 Benjamin Barca Matthew Grainger 《鸟类学研究:英文版》 CSCD 2019年第3期262-270,共9页
Background:Understanding geographic distributions of species is a crucial step in spatial planning for biodiversity conservation, particularly as regards changes in response to global climate change.This information i... Background:Understanding geographic distributions of species is a crucial step in spatial planning for biodiversity conservation, particularly as regards changes in response to global climate change.This information is especially important for species of global conservation concern that are susceptible to the effects of habitat loss and climate change. In this study, we used ecological niche modeling to assess the current and future geographic distributional potential of White.breasted Guineafowl (Agelastes meleagrides)(Vulnerable) across West Africa. Methods:We used primary occurrence data obtained from the Global Biodiversity Information Facility and national parks in Liberia and Sierra Leone, and two independent environmental datasets (Moderate Resolution Imaging Spectroradiometer normalized difference vegetation index at 250 m spatial resolution, and Worldclim climate data at 2.5' spatial resolution for two representative concentration pathway emissions scenarios and 27 general circulation models for 2050) to build ecological niche models in Maxent. Results: From the projections, White.breasted Guineafowl showed a broader potential distribution across the region compared to the current IUCN range estimate for the species. Suitable areas were concentrated in the Gola rainforests in northwestern Liberia and southeastern Sierra Leone, the Tai.Sapo corridor in southeastern Liberia and southwestern Cote d'lvoire, and the Nimba Mountains in northern Liberia, southeastern Guinea, and northwestern Cote d'lvoire.Future climate.driven projections anticipated minimal range shifts in response to climate change. Conclusions: By combining remotely sensed data and climatic data, our results suggest that forest cover, rather than climate is the major driver of the species' current distribution. Thus, conservation efforts should prioritize forest protection and mitigation of other anthropogenic threats (e.g.hunting pressure) affecting the species. 展开更多
关键词 Climate change CONSERVATION CONSERVATION planning Ecological NICHE modeling Species distribution Upper GUINEA FOREST White-breasted Guineafowl
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The smoothed finite element method (S-FEM):A framework for the design of numerical models for desired solutions
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作者 Gui-Rong Liu 《结构与土木工程前沿:英文版》 EI CSCD 2019年第2期456-477,共22页
The smoothed finite element method (S-FEM) was originated by G R Liu by combining some meshfree techniques with the well-established standard finite element method (FEM). It has a family of models carefully designed w... The smoothed finite element method (S-FEM) was originated by G R Liu by combining some meshfree techniques with the well-established standard finite element method (FEM). It has a family of models carefully designed with innovative types of smoothing domains. These models are found having a number of important and theoretically profound properties. This article first provides a concise and easy-to-follow presentation of key formulations used in the S-FEM. A number of important properties and unique features of S-FEM models are discussed in detail, including 1) theoretically proven softening effects;2) upper-bound solutions;3) accurate solutions and higher convergence rates;4) insensitivity to mesh distortion;5) Jacobian?free;6) volumetric-locking-free;and most importantly 7) working well with triangular and tetrahedral meshes that can be automatically generated. The S-FEM is thus ideal for automation in computations and adaptive analyses, and hence has profound impact on Al-assisted modeling and simulation. Most importantly, one can now purposely design an S-FEM model to obtain solutions with special properties as wish, meaning that S-FEM offers a framework for design numerical models with desired properties. This novel concept of numerical model demand may drastically change the landscape of modeling and simulation. Future directions of research are also provided. 展开更多
关键词 computational METHOD FINITE ELEMENT METHOD smoothed FINITE ELEMENT METHOD strain SMOOTHING technique SMOOTHING domain weakened weak form solid mechanics SOFTENING effect upper bound solution
Tail asymptotic for discounted aggregate claims with one-sided linear dependence and general investment return
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作者 Fenglong Guo Dingcheng Wang 《中国科学:数学英文版》 SCIE CSCD 2019年第4期735-750,共16页
In this study, we investigate the tail probability of the discounted aggregate claim sizes in a dependent risk model. In this model, the claim sizes are observed to follow a one-sided linear process with independent a... In this study, we investigate the tail probability of the discounted aggregate claim sizes in a dependent risk model. In this model, the claim sizes are observed to follow a one-sided linear process with independent and identically distributed innovations. Investment return is described as a general stochastic process with cadlag paths. In the case of heavy-tailed innovation distributions, we are able to derive some asymptotic estimates for tail probability and to provide some asymptotic upper bounds to improve the applicability of our study. 展开更多
关键词 POISSON risk model TAIL probability ONE-SIDED linear process heavy-tailed distribution ASYMPTOTIC upper BOUND investment RETURN
Kinematic improvement after the external-application herbs combine rehabilitation in upper-limb spasticity due to stroke 预览
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作者 Xiao Ding Zhen-Yao Wang +3 位作者 Hu Zhang Xin-wei Wang Wei-Hao Fang Da-Wei Zhan 《TMR非药物治疗》 2019年第2期48-54,共7页
Background: Spasm is one of the most serious physical impairment after stroke. the external-application herbs have showed some effects on the spasm. This study was conducted to evaluate the comparative effectiveness o... Background: Spasm is one of the most serious physical impairment after stroke. the external-application herbs have showed some effects on the spasm. This study was conducted to evaluate the comparative effectiveness of the external-application herbs and physical therapy in upper limb spasticity after stroke. Methods: A total of 100 patients with upper limb spasm after stroke (stroke time less than 1 month), have been recruited in Shun-yi Hospital of Beijing Traditional Chinese Medicine Hospital. Patients will be randomly allotted to one of two groups (N = 50, respectively): the TCM external application group, and the usual rehab (conventional physical therapy and medication treatment) group. The two groups will be administered once a month for three months. The primary outcome will be Modified Athworth Scale (MAS) and the simplified scale (Fugl-Meyer assessment, FMA) for upper limb. Results: Muscle tension and motor function were evaluated before and 4 weeks after treatments. There was a significant improvement in muscle tension and motor function in patients with stroke after the external-application herbs and physical therapy (P < 0.05). Conclusion: There was a significant improvement in kinematics in patients with stroke. 展开更多
关键词 EXTERNAL APPLICATION of Chinese HERBS TCM Anti-spastic Position UPPER LIMB
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Quantitative analysis of planation surfaces of the upper Yangtze River in the Sichuan-Yunnan Region, Southwest China
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作者 Fenliang LIU Hongshan GAO +2 位作者 Baotian PAN Zongmeng LI Huai SU 《地球科学前沿:英文版》 SCIE CAS CSCD 2019年第1期55-74,共20页
Identification of the planation surfaces (PSs)is key for utilizing them as a reference in studying the long- term geomorphological evolution of the Upper Yangtze River Basin in the Sichuan-Yurman region,Southwest Chin... Identification of the planation surfaces (PSs)is key for utilizing them as a reference in studying the long- term geomorphological evolution of the Upper Yangtze River Basin in the Sichuan-Yurman region,Southwest China.Using a combined method of DEM-based fuzzy logic and topographic and fiver profiles analysis and based on a comprehensive analysis of four morphometfic parameters:slope,curvature,terrain raggedness index, and relative height,we established the relevant fuzzy membership functions,and then calculated the membership degree (MD)of the study area.Results show that patches with a MD>80% and an area>0.4 km^2 correspond well to the results of Google Earth and field investigation,representing the PS remnants.They consist of 1764 patches with an altitude,area,mean slope,and relief of mostly 2000-2500 m above sea level (asl),0-10 km^2,4°-9°,0-500 m,respectively,covering 9.2% of the study area's landscape,dipping to southeast,decreasing progressively from northwest to southeast in altitude,and with no clear relation between each patch's altitude and slope,or relief.All these results indicate that they are remnants of once regionally continuous PSs which were deformed by both the lower crust flow and the faults in upper crust,and dissected by the network of Upper Yangtze River.Additionally,topographic and river profiles analysis show that three PSs (PS1-PS3)well developed along the main valleys in the Yongren-Huili region, indicating several phases of uplift then planation during the Late Cenozoic era.Based on the incision amount deduced from projection of relict river profiles on PSs, together with erosion rates,breakup times of the PS 1,PS2,and PS3 were estimated to be 3.47 Ma,2.19 Ma,and 1.45 Ma,respectively,indicating appearance of modem Upper Yangtze River valley started between the Pliocene to early Pleistocene. 展开更多
关键词 planation surface fuzzy logic topographic ANALYSIS RIVER profile ANALYSIS Upper YANGTZE RIVER SOUTHWEST China
论低帮鞋中楦型结构与鞋靴款式设计之间的关系
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作者 潘美丽 费锐 《中国皮革》 CAS 2019年第2期61-65,共5页
鞋楦是鞋子设计与制作的依据,分别从长度、围度、线条以及凹凸度等方面细致全面地分析了鞋楦的结构特征,并选取了15码的婴童楦和36码的成人女楦作为试验对象,以数据对比的形式,详细分析了两款鞋楦的楦型结构与跟高、鞋头造型、帮面分割... 鞋楦是鞋子设计与制作的依据,分别从长度、围度、线条以及凹凸度等方面细致全面地分析了鞋楦的结构特征,并选取了15码的婴童楦和36码的成人女楦作为试验对象,以数据对比的形式,详细分析了两款鞋楦的楦型结构与跟高、鞋头造型、帮面分割、开关方式等之间的关系,为设计师提供理论支撑。 展开更多
关键词 鞋楦 脚长 跖围 鞋帮面 楦底样
Influence of non-dimensional strength parameters on the seismic stability of cracked slopes
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作者 ZHAO Lian-heng CHENG Xiao +1 位作者 LI De-jian ZHANG Ying-bin 《山地科学学报:英文版》 SCIE CSCD 2019年第1期153-167,共15页
Cracks in rock or soil slopes influence the stability and durability of the slopes.Seismic forces can trigger slope disasters,particularly in the cracked slopes.Considering the nonlinear characteristics of materials,t... Cracks in rock or soil slopes influence the stability and durability of the slopes.Seismic forces can trigger slope disasters,particularly in the cracked slopes.Considering the nonlinear characteristics of materials,the more generalized nonlinear failure criterion proposed by Baker is adopted.The influence of non-dimensional strength parameters on the stability of cracked slopes under earthquakes is performed using the upper bound limit analysis.The seismic displacement is calculated by adopting the logarithmic spiral failure surface according to the sliding rigid block model.Based on the existing studies,two methods for the stability analysis of cracked slopes under earthquakes are introduced:the pseudo-static method(with the factor of safety(Fs)as an evaluation index),and the displacement-based method(with the seismic displacement as an evaluation index).The pseudo-static method can only determine the instantaneous stability state of the cracked slope,yet the displacement-based methodreflects the stability variation of cracked slopes during earthquakes.The results indicate that the nondimensional strength parameters affect the factor of safety and seismic displacement of slopes significantly.The non-dimensional strength parameter(n)controlling the curvature of strength function shapes on the slope stability is affected by other parameters.Owing to cracks,the effect of non-dimensional strength parameters on seismic displacement becomes more significant. 展开更多
关键词 Cracked SLOPES UPPER BOUND limit analysis(UBLA) Generalized nonlinear failure CRITERION PSEUDO-STATIC METHOD Displacement-based METHOD
Study on Submerged Upper Arc-Shaped Plate Type Breakwater 预览
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作者 WANG Ke SHI Peng-fei +1 位作者 CHEN Yu-chao CHENG Xiao-ming 《中国海洋工程:英文版》 SCIE EI CSCD 2019年第2期219-225,共7页
Based on the wave radiation and diffraction theory, this paper investigates a new type breakwater with upper arcshaped plate by using the boundary element method (BEM). By comparing with other three designs of plate t... Based on the wave radiation and diffraction theory, this paper investigates a new type breakwater with upper arcshaped plate by using the boundary element method (BEM). By comparing with other three designs of plate type breakwater (lower arc-shaped plate, single horizontal plate and double horizontal plate), this new type breakwater has been proved more effective. The wave exiting force, transmission and reflection coefficients are analyzed and discussed. In order to reveal the wave elimination mechanism of this type of breakwater, the velocity field around the breakwater is obtained. It is shown that:(1) The sway exciting force is minimal.(2) When the ratio of the submergence and wave amplitude is 0.05, the wave elimination effect will increase by 50% compared with other three types of breakwater.(3) The obvious backflow is found above the plate in the velocity field analysis. 展开更多
关键词 UPPER arc-shaped plate type BREAKWATER boundary element method transmission and reflection coefficient velocity field analysis
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HENGSHUI XUKANG MEDICAL APPLIANCES CO.,LTD. 预览
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《中国经贸》 2019年第6期139-141,共3页
Hengshui Xukang Medical Appliances CO.,LT D.is a professional producer of sports and health supplies,headquartered located in Anping County,Hengshui City,Hebei Province.Hengshui Xukang Medical Appliances CO.,LTD.found... Hengshui Xukang Medical Appliances CO.,LT D.is a professional producer of sports and health supplies,headquartered located in Anping County,Hengshui City,Hebei Province.Hengshui Xukang Medical Appliances CO.,LTD.founded in 2006,With a long history.The main products are in the following areas:Cervical Collars,Waist Support,Posture Corrector,Upper Extremity,Lower Extremity,Orthosis,Crutch,Finger Splints and First Aid Equipment and so on. 展开更多
关键词 UPPER LOWER founded
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Upper-mantle velocity structures beneath the Tibetan Plateau and surrounding areas inferred from triplicated P waveforms 预览
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作者 RiSheng Chu LuPei Zhu ZhiFeng Ding 《地球与行星物理:英文版》 CSCD 2019年第5期444-458,共15页
P-wave waveforms in the distance range between 12°and 30°were analyzed to investigate upper-mantle P velocity structures beneath the Tibetan Plateau and surrounding areas.The waveform data from 504 earthquak... P-wave waveforms in the distance range between 12°and 30°were analyzed to investigate upper-mantle P velocity structures beneath the Tibetan Plateau and surrounding areas.The waveform data from 504 earthquakes with magnitudes larger than 5.0 between 1990 and 2005 that occurred within 30°from the center of the Plateau were modelled.We divided the study area into 6 regions and modeled upper-mantle-distance P waveforms with turning points beneath each region separately.The results show that the uppermantle P-wave velocity structures beneath India,the Himalayas,and the Lhasa Terrane are similar and contain a high-velocity lid about 250 km thick.The upper-mantle velocities down to 200 km beneath the Qiangtang Terrane,the Tarim Basin,and especially the Songpan-GarzêTerrane are lower than those in the south.The 410-km discontinuity beneath these two terranes is elevated by about 20 km.Highvelocity anomalies are found in the transition zone below 500 km under the Lhasa and Qiangtang Terranes.The results suggest that the Tibetan Plateau was generated by thrusting of the Indian mantle lithosphere under the southern part of Tibet.Portions of the thickened Eurasian mantle lithosphere were delaminated;they are now sitting in the transition zone beneath southern Tibet and atop of the 410-km discontinuity underneath northern Tibet. 展开更多
关键词 Tibetan Plateau upper MANTLE structure triplication WAVEFORM modelling
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Tuberculous esophagomediastinal fistula with concomitant mediastinal bronchial artery aneurysm-acute upper gastrointestinal bleeding: A case report 预览
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作者 Sultan R Alharbi 《世界胃肠病学杂志:英文版》 SCIE CAS 2019年第17期2144-2148,共5页
BACKGROUND Esophagomediastinal fistula is a very rare complication of tuberculosis in otherwise healthy adults, and mediastinal bronchial artery aneurysm is even rarer. In this case report, we describe a rare case of ... BACKGROUND Esophagomediastinal fistula is a very rare complication of tuberculosis in otherwise healthy adults, and mediastinal bronchial artery aneurysm is even rarer. In this case report, we describe a rare case of tuberculosis complication that presented with acute upper gastrointestinal (GI) bleeding. It also highlights the benefits of chest computed tomography (CT) as an excellent adjunct diagnostic tool to endoscopy and bronchoscopy and the role of trans-arterial embolization as a minimal invasive therapy alternative to surgery. CASE SUMMARY A 19-year-old medically free male patient presented with acute multiple episodes of hematemesis for 1 d. Upper GI endoscopy, bronchoscopy, and chest CT with IV contrast confirmed esophagomediastinal fistula with mediastinal bronchial artery aneurysm. After resuscitating patient with IV fluid and blood product transfusion, trans catheter embolization was performed for mediastinal bronchial artery aneurysm. CONCLUSION We successfully treated a patient with acute upper GI bleeding due to tuberculous esophagomediastinal fistula and mediastinal bronchial artery aneurysm using transcatheter coil embolization. 展开更多
关键词 MEDIASTINAL BRONCHIAL artery ANEURYSM Esophagomediastinal FISTULA Upper gastrointestinal bleeding MEDIASTINAL tuberculosis Case report
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An Analysis of the Discontinuity in Chinese Radiosonde Temperature Data Using Satellite Observation as a Reference
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作者 Yanjun GUO Chengzhi ZOU +1 位作者 Panmao ZHAI Guofu WANG 《气象学报:英文版》 SCIE CSCD 2019年第2期289-306,共18页
Reconciling upper-air temperature trends derived from radiosonde and satellite observations is a necessary step to confidently determine the global warming rate. This study examines the raw and homogenized radiosonde ... Reconciling upper-air temperature trends derived from radiosonde and satellite observations is a necessary step to confidently determine the global warming rate. This study examines the raw and homogenized radiosonde observations over China and compares them with layer-mean atmospheric temperatures derived from satellite microwave observations for the lower-troposphere(TLT), mid-troposphere(TMT), upper-troposphere(TUT), and lower-stratosphere(TLS) by three research groups. Comparisons are for averages over China, excluding the Tibetan Plateau, and at individual stations where metadata contain information on radiosonde instrument changes. It is found that major differences between the satellite and radiosonde observations are related to artificial systematic changes. The radiosonde system updates in the early 2000 s over China caused significant discontinuities and led the radiosonde temperature trends to exhibit less warming in the middle and upper troposphere and more cooling in the lower stratosphere than satellite temperatures. Homogenized radiosonde data have been further adjusted by using the shift-point adjustment approaches to match with satellite products for China averages. The obtained trends during 1979–2015 from the re-adjusted radiosonde observation are respectively 0.203 ± 0.066, 0.128 ± 0.044, 0.034 ± 0.039, and –0.329 ± 0.135 K decade–1 for TLT, TMT, TUT, and TLS equivalents. Compared to satellite trends, the re-adjusted radiosonde trends are within 0.01 K decade–1 for TMT and TUT, 0.054 K decade–1 warmer for TLT, and 0.051 K decade–1 cooler for TLS. The results suggest that the use of satellite data as a reference is helpful in identifying and removing inhomogeneities of radiosonde temperatures over China and reconciling their trends to satellite microwave observations. Future efforts are to homogenize radiosonde temperatures at individual stations over China by using similar approaches. 展开更多
关键词 RADIOSONDE TEMPERATURE HOMOGENIZATION satellite microwave SOUNDING unit China upper air TEMPERATURE TRENDS
Fire-needle acupuncture for upper limb spastic paralysis after stroke:Study protocol for a randomized controlled trial
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作者 Xin-yu Yue Zhuo-qi Feng +3 位作者 Xi-yi Yu Jia-min Hu Xiao-Jing He Shi Shu 《结合医学学报:英文版》 CAS CSCD 2019年第3期167-172,共6页
Background: Fire-needle acupuncture, an important kind of acupuncture therapy, has been clinically used to treat upper limb spastic paralysis(ULSP) after stroke. Clinical experience has indicated that fire-needle acup... Background: Fire-needle acupuncture, an important kind of acupuncture therapy, has been clinically used to treat upper limb spastic paralysis(ULSP) after stroke. Clinical experience has indicated that fire-needle acupuncture treatment takes less time, requires fewer visits, and has more rapid results and fewer side effects compared to chemical medicine alternatives. This study will evaluate the effects of fire-needle acupuncture for ULSP in the context of standardized clinical research and provide high-quality data to inform clinical procedures and future study design.Methods/Design: A randomized controlled trial will be carried out to evaluate the effects of fire-needle acupuncture therapy in patients with ULSP from stroke. ULSP patients(n = 120) will be recruited at Changhai Hospital in Shanghai, China. Patients will be randomly divided into three groups, including fire-needle acupuncture group(FAG), filiform-needle acupuncture group(FFAG) and rehabilitation treatment group(RTG). During the 3-week treatment, the FAG will be treated every two days, while FFAG and RTG will be treated 5 d in a row and then rest for 2 d. The Simplified Fugl-Meyer Motor Function Scale and Modified Ashworth Scale will be used as the primary outcome measures. Statistical analysis will be conducted by an independent statistician.Discussion: Through this study, the utility of fire-needle acupuncture in treating ULSP after stroke will be tested, and some specific claims of fire-needle acupuncture therapy will be evaluated, such as relieving spasm and muscular tension, improving activities of daily living, rapidity of response and less frequency of treatment compared with other treatments. 展开更多
关键词 Fire-needle ACUPUNCTURE Upper limb SPASTIC PARALYSIS STROKE Randomized controlled trial Study protocol
The preoperative serum cystatin-C as an independent prognostic factor for survival in upper tract urothelial carcinoma
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作者 Ping Tan Ming Shi +8 位作者 Jie Chen Hang Xu Nan Xie Huan Xu Yong Jiang Jian-Zhong Ai Liang-Ren Liu Lu Yang Qiang Wei 《亚洲男性学杂志:英文版》 SCIE CAS CSCD 2019年第2期163-169,共7页
Cystatin-C(Cys-C)has been reported as a valuable prognostic biomarker in various malignancies.However,its effect on upper tract urothelial carci noma(UTUC)patie nts has not bee n investigated before.Thus,to explore th... Cystatin-C(Cys-C)has been reported as a valuable prognostic biomarker in various malignancies.However,its effect on upper tract urothelial carci noma(UTUC)patie nts has not bee n investigated before.Thus,to explore the impact of Cys-C on survival outcomes in patients undergoing radical nephroureterectomy(RNU),a total of 538 patients with UTUC who underwent RNU between 2005 and 2014 in our center(West China Hospital,Chengdu,China)were included in this study.Kaplan-Meier method and Cox regressi on an a lyses were performed to assess the relationship betwee n Cys-C and survival outcomes using SPSS versi on 22.0.The cutoff value of Cys-C was set as 1.4 mg I1 using the receiver operating characteristic(ROC)curves and Youden index.The mean age of patients included was 66.1±11.1 years,and the media n follow-up durati on was 38(interquartile ran ge:19-56)mon ths.Overall,162(30.1%)patients had elevated Cys-C,and they were much older and had worse renal function than those with Cys-C<1.4 mg I^-1(both P<0.001).Meanwhile,Kaplan-Meier analysis revealed that the group with elevated Cys-C had worse cancer-specific survival(CSS,P=0.001),disease recurrence-free survival(RFS,P=0.003),and overall survival(OS,P<0.001).Multivariable Cox analysis suggested that the elevated Cys-C was identified as an independent prognostic predictor of CSS(hazard ratio[HR]:1.997,95%confidential interval[CI]:1.331-2.996),RFS(HR:1.429,95%CI:1.009-2.023),and OS(HR:1.989,95%CI:1.366-2.896).In conclusion,our result revealed that the elevated preoperative serum Cys-C was significantly associated with worse outcomes in UTUC patients undergoing RNU. 展开更多
关键词 CYSTATIN-C prognosis RADICAL NEPHROURETERECTOMY upper TRACT UROTHELIAL carcinoma
Exploring thermocline and water masses variability in southern South China Sea from the World Ocean Database (WOD) 预览
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作者 Afifi Johari Mohd Fadzil Akhir 《海洋学报:英文版》 SCIE CAS CSCD 2019年第1期38-47,共10页
Study about water characteristics (temperature and salinity) from the World Ocean Database (WOD) was conducted in the area of southern South China Sea (SSCS), covering the area of 0°–10°N, 100°–117... Study about water characteristics (temperature and salinity) from the World Ocean Database (WOD) was conducted in the area of southern South China Sea (SSCS), covering the area of 0°–10°N, 100°–117°E. From interannual analysis, upper layer (10 m) and deep water temperature (50 m) increased from 1951 until 2014. Monthly averaged show that May recorded the highest upper layer temperature while January recorded the lowest. It was different for the deep water which recorded the highest value in September and lowest in February. Contour plot for upper layer temperature in the study area shows presence of thermal front of cold water at southern part of Vietnam tip especially during peak northeast season (December–January). The appearances of warm water were obviously seen during generating southwest monsoon (May–June). Thermocline study revealed the deepest isothermal layer depth (ILD) during peak northeast and southwest monsoon. Temperature threshold at shallow area reach more than 0.8℃ during the transitional period. Water mass study described T-S profile based on particular region. Water mass during the southwest monsoon is typically well mixed compared to other seasons while strong separation according to location is very clear. During transitional period between northeast monsoon to southwest monsoon, the increasing of water temperature can be seen at Continental Shelf Water (CSW) which tend to be higher than 29℃ and vice versa condition during transitional period between southwest monsoon to northeast monsoon. Dispersion of T-S profile can be seen during southwest monsoon inside Tropical Surface Water (TSW) where the salinity and temperature become higher than during northeast monsoon. 展开更多
关键词 SOUTHERN South China Sea upper layer temperature NORTHEAST MONSOON SOUTHWEST MONSOON THERMOCLINE water mass
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