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Laparoscopic sleeve gastrectomy:More than a restrictive bariatric surgery procedure?

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World Journal of Gastroenterology 2015年第41期21卷 11804-11814页

作者： David Benaiges Antonio Más-Lorenzo Albert Goday José M Ramon juan J Chillarón juan Pedro-Botet juana A Flores-Le Roux Department of Endocrinology and Nutrition Hospital del Mar Department of Medicine Universitat Autònoma de Barcelona Institut Hospital del Mar d’Investigacions Mèdiques (IMIM) CiberOBN Instituto de Salud Carlos III Department of Gastrointestinal surgery Hospital del Mar

sleeve gastrectomy(sG) is a restrictive bariatric surgery technique that was first used as part of restrictive horizontal gastrectomy in the original scopinaro type biliopancreatic diversion. Its good results as a single technique have led to a rise in its use, and it is currently the second most performed technique worldwide. sG achieves clearly better results than other restrictive techniques and is comparable in some aspects to the Roux-en-Y gastric bypass, the current gold standard in bariatric surgery. These benefits have been associated with different pathophysiologic mechanisms unrelated to weight loss such as increased gastric emptying and intestinal transit, and activation of hormonal mechanisms such as increased GLP-1 hormone and decreased ghrelin. The aim of this review was to highlight the salient aspects of sG regarding its historical evolution, pathophysiologic mechanisms, main results, clinical applications and perioperative complications.

关键词： Bariatric surgery sleeve gastrectomy severe obesit

stimulatory effects of biosurfactant produced by Pseudomonas aeruginosa BsZ-07 on rice straw decomposing

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Journal of Environmental sciences 2008年第8期20卷 975-980页

作者： ZHANG Qiuzhuo CAI Weimin WANG juan Department of Environmental science and Engineering Harbin Institute of Technology Harbin 150090 China school of Environmental science and Engineering Shanghai Jiao Tong University Shanghai 200240 China

Biosurfactant,produced by Pseudomonas aeruginosa BsZ-07,was added to the dee straw decomposing process to enhance the production of reducing *** by Fourier Transform InfraRed(FT-IR)and Nuclear Magnetic Resonance(NMR)analysis, the purified biosurfactant was considered as a mixture of RL1 and RL2,which are two different types of *** different adding methods,adding the purified rhamnolipid and the on-site production of it were *** results showed that 0.5 g/L was the optimum co...

关键词： biosurfactant rhamnolipid on-site rice straw decomposing

Atmospheric density determination using high-accuracy satellite GPs data

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science China(Technological sciences) 2018年第2期61卷 204-211页

作者： REN TingLing MIAO juan LIU siQing National space science Center Chinese Academy of SciencesBeijing 100190China College of Earth sciences University of Chinese Academy of SciencesBeijing 100049China

Atmospheric drag is the main source of error in the determination and prediction of the orbit of low Earth orbit （LEO） satellites; however, empirical models that are used to account for this often have density errors of around 15%-30%. Atmospheric density determination has thus become an important topic for researchers. Based on the relationship between file atmospheric drag force and the decay of the semi-major axis of the orbit, we derived atmospheric density along the trajectory of challenging mini-satellite payload （CHAMP） satellite with its rapid science orbit （RsO） data. Three primary parameters--the ratio of cross-sectional area to mass, the drag coefficient, and the decay of the semi-major axis caused by atmospheric drag--were calculated. We also analyse the source of the error and made a comparison between the GPs-derived and reference density. The result for December 2, 2008, showed that the mean error of the GPs-derived density could be decreased from 29.21% to 9.20%, if the time span adopted for the process of computation was increased from 10 min to 50 min. The result for the entire month of December indicated that a density precision of 10% could be achieved, when the time span meets the condition that the amplitude of the decay of the semi-major axis is much greater than its standard deviation.

关键词： atmospheric density determination high-accuracy GPs data drag coefficient orbit decay

13th Asia-Pacific Congress of Clinical Microbiology and Infection Consensus Guidelines for diagnosis and treatment of liver failure

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Hepatobiliary & Pancreatic Diseases International 2013年第4期12卷 346-354页

作者： Lan-juan Li Organization Committee of 13th Asia-Pacific Congress of Clinical Microbiology and Infection state Key Laboratory for Diagnosis and Treatment of Infectious Diseases First Affiliated Hospital Zhejiang University School of Medicine

Introduction Liver failure is defined as hepatocellular dysfunction manifested by severe synthetic and metabolic disturbance with extremely high *** and clinicians have been trying to explore itsdefinition,classificat... 详细信息

关键词： liver failure

Comparison of the effects of soil moisture and El Nino on summer precipitation in eastern China

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science China Earth sciences 2020年第2期63卷 267-278页

作者： juan ZHOU Zhiyan ZUO Xinyao RONG state Key Laboratory of severe Weather Chinese Academy of Meteorological Sciences

The effects of spring soil moisture over the vast region from the lower and middle reaches of the Yangtze River valley to North China(YRNC) and El Ni?o on the East Asian summer monsoon(EAsM) and precipitation in eastern China, as well as the relevant mechanisms, are investigated using the modified atmospheric model ECHAM5 coupled with the Common Land Model. These models are the atmospheric and land components of the climate system model developed at the Chinese Academy of Meteorological sciences(CAMs-CsM). The simulations show that both soil moisture anomalies in eastern China and El Ni?o sea surface temperature(ssT) anomalies have significant influences on the EAsM, with the effect of soil moisture being slightly greater than that of the El Ni?o. However, the impacts of soil moisture on EAsM and rainfall in eastern China are markedly different from those of the El Ni?o. Wetter(drier) soil over the YRNC corresponds to less(more) precipitation over northern and southeastern China, and more(less) precipitation over the Yangtze River basin and northeastern China, as well as a strengthened(weakened) and westward-shifted(eastward-shifted) West Pacific subtropical High and a deepened(shallower) East Asian trough, representing a weakened(strengthened) EAsM pattern. During El Ni?o developing summers, an anomalous anticyclone extends from northeastern to northern China, and an anomalous cyclone occupies the middle and lower reaches of the Yangtze River and southern China. Concurrently, the West Pacific subtropical High is anomalously weaker than normal. As a result,rainfall anomalously increases over the lower reaches of the Yangtze River and southern China, and decreases over northern and northeastern China. In El Ni?o decaying summers, there is an anomalous cyclone over northeastern China and an anomalous anticyclone over southern China. The convergence of southerly airflow and northerly winds leads to enhanced rainfall around northern China and the middle reaches of the Y

关键词： soil moisture El Nino East Asian summer monsoon Precipitation Numerical simulation

Impact Failure of Flattened Brazilian Disc with Cracks——Process and Mechanism

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Journal of Wuhan University of Technology(Materials science) 2020年第5期35卷 1003-1010页

作者： ZHANG Yafang LIU Hao YIN Guoqi OU Chenggui LU juan HE juan school o f Civil Engineering Guangzhou UniversityGuangzhou 510006China shenzhen Municipal Design Research Institute Co.Ltd. Shenzhen 518029China

split Hopkinson pressure bar(sHPB)has been used to study the dynamic failure pattern of flattened mortar Brazilian disc under impact *** disc contains several prefabricated cracks paralleled to each *** FEM has also been adopted to simulate such failure *** mechanism of crack initiation,propagation and cut-through have been scrutinized with both experimental and numerical *** of the number of the prefabricated cracks on the specimen strength and acoustic emission(AE)performance can be observed and *** results show that the strength decreases and AE counts increases,when the number of the prefabricated cracks increases.

关键词： paralleled cracks flattened brazilian disc impact load sHPB failure process acoustic emission

On the existence of traveling wave solutions and upper and lower bounds for some Fisher-iolmogorov type equations

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International Journal of Biomathematics 2014年第5期7卷 51-65页

作者： juan Belmonte-Beitia Departamento de Matemdticas E. T. S. de Ingenieros Industriales and Instituto de Matemdtica Aplicada a la Ciencia y la Ingenierla (IMA CI) Universidad de Castilla-La Mancha 13071 Ciudad Real Spain

In this paper, we use a dynamical systems approach to prove the existence of traveling waves solutions for the Fisher-Kolmogorov density-dependent equation. Moreover, we prove the existence of upper and lower bounds for these traveling wave solutions found previously. Finally, we present a particular example which has several applications in the mathematical biology field.

关键词： Fisher-Kolmogorov equations nonlinear diffusion heteroclinic orbits upperand lower solutions center manifold.

Improved RIP-based performance guarantees for multipath matching pursuit

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science China(Information sciences) 2018年第10期61卷 173-186页

作者： juan ZHAO Xia BAI Ran TAO school of Information and Electronics Beijing Institute of Technology Beijing Key Laboratory of Fractional signals and systems Beijing Institute of Technology

The multipath matching pursuit(MMP) is a generalization of the orthogonal matching pursuit(OMP), which generates multiple child paths for every candidate in each iteration and selects the candidate having the minimal residual as the final support set when iteration ends. In this paper we analyze its performance in both noiseless and noisy cases. The restricted isometry property(RIP)-based condition of MMP that ensures accurate recovery of sparse signals in the noiseless case is derived by using a simple technique. The performance guarantees of the MMP for support recovery in noisy cases are also *** is shown that under certain conditions on the RIP and minimum magnitude of nonzero components of the sparse signal, the MMP will exactly recover the true support of the sparse signal in cases of bounded noises and recover the true support with a high probability in the case of Gaussian noise. Our bounds on the RIP improve the existing results.

关键词： compressed sensing(Cs) sparse signal reconstruction multipath matching pursuit(MMP) support recovery restricted isometry property(RIP)

Round Top Mountain rhyolite(Texas, UsA), a massive, unique Y-bearing-fluorite-hosted heavy rare earth element(HREE) deposit

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Journal of Rare Earths 2014年第1期32卷 90-96页

作者： PINGITORE Nicholas CLAGUE juan GORsKI Daniel Department of Geological sciences The University of Texas at El Paso Texas Rare Earth Resources

Round Top Mountain in Hudspeth County, west Texas, UsA is a surface-exposed rhyolite intrusion enriched in Y and heavy rare earth elements （HREEs）, as well as Nb, Ta, Be, Li, F, sn, Rb, Th, and U. The massive tonnage, estimated at well over 1 billion tons, of the deposit makes it a target for recovery of valuable yttrium and HREEs （YHREEs）, and possibly other scarce ele-ments. Because of the extremely fine grain size of the mineralized rhyolite matrix, it has not been clear which minerals host the YHREEs and in what proportions. REE-bearing minerals reported in the deposit included bastn？site-Ce, Y-bearing fluorite, xeno-time-Y, zircon, aeschynite-Ce, a Ca-Th-Pb fluoride, and possibly ancylite-La and cerianite-Ce. Extended X-ray absorption fine struc-ture （EXAFs） indicated that virtually all of the yttrium, a proxy for the HREEs, resided in a coordination in the fluorite-type crystal structure, rather than those in the structures of bastn？site-Ce and xenotime-Y. The YREE grade of the Round Top deposit was just over 0.05%, with 72%of this consisting of YHREEs. This grade was in the range of the south China ionic clay deposits that supply essentially all of the world’s YHREEs. Because the host Y-bearing fluorite is soluble in dilute sulfuric acid at room temperature, a heap leaching of the deposit appeared feasible, aided by the fact that 90%-95%of the rock consists of unreactive and insoluble feld-spars and quartz. The absence of overburden, remarkable consistency of mineralization grade throughout the massive rhyolite, prox-imity （a few km） to a Us interstate highway, major rail systems and gas and electricity, temperate climate, and stable political location in the world’s largest economy all enhanced the potential economic appeal of Round Top.

关键词： heavy rare earth elements yttrium-beating fluorite yttrofluorite heap leaching rhyolite Round Top deposit