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Efficacy of multi-slice spiral computed tomography in evaluating gastric cancer recurrence after endoscopic submucosal dissection

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World Journal of Gastrointestinal Oncology 2023年第9期15卷 1636-1643页

作者： Jian-Jun Yin Xiao hu sen hu Guo-Hong Sheng Department of Radiology Huangshi Maternity and Children's health HospitalAffiliated Maternity and Children's Health Hospital of Hubei Polytechnic UniversityHuangshi 435000Hubei ProvinceChina Department of Geriatrics Huangshi Central HospitalAffiliated Hospital of Hubei Polytechnic UniversityHuangshi 435000Hubei ProvinceChina

BACKGROUND Recurrence is the major challenge facing endoscopic submucosal dissection(ESD)-based treatment therapies for early gastric cancer(EGC).Urgent development of simple and easy surveillance approaches will enhance clinical treatment of the disease.AIM To explore the role of computed tomography(CT)recurrence in evaluating EGC after ESD treatment.METHODS We retrospectively recruited patients from our endoscopy department,between January 2002 and December 2015,and analyzed their basic characteristics,including symptoms,CT results,and results of endoscopy with biopsy,among others.RESULTS Among a total of 2150 patients EGC patients surveyed,1362 met our inclusion and exclusion criteria and were therefore enrolled in our study.The cohort’s sensitivity of CT for recurrent GC and specificity were 44.22%and 43.86%,respectively,with negative and positive predictive values of 40.15%(275/685)and 48.01%(325/677),respectively.The area under the curve of arterial and venous CT values for recurrent EGC were 0.545,and 0.604,respectively.Receiver operating characteristic curve revealed no statistically significant differences between arterial and venous CT values for recurrent EGC.CONCLUSION Enhanced CT has superior diagnostic efficacy,but less accuracy,compared to gold standard techniques in patients with recurrent EGC.

关键词： Computed tomography Early gastric cancer Gastric cancer Multi-slice spiral computed tomography

Physics of cavitation near particles

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Journal of Hydrodynamics 2024年第1期36卷 102-118页

作者： Jia-xin Yu Xiao-yu Wang Jun-wei Shen Jin-sen hu Xiang-qing Zhang Da-qing He Yu-ning Zhang Key Laboratory of Power Station Energy Transfer Conversion and System(Ministry of Education) School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijing102206China

The combined effect of cavitation and silt abrasion presents a great challenge and threat to secure the operation and the efficiency of hydraulic machineries working in sediment-laden fluid.The present paper critically reviews the current research progress on the interaction mechanisms of the bubbles and the particles.Firstly,the analytical models including boundary treatment methods for predicting the jet dynamics of the bubble collapse near particles are demonstrated.Secondly,the bubble collapsing dynamics,jet dynamics and shock wave characteristics near particles are revealed both experimentally and numerically.Finally,the bubble-particle-wall system is investigated with a focus on microjets.

关键词： Cavitation bubble particle jet shock wave

HOMFLY Polynomial from a Generalized Yang–Yang Function

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Communications in Mathematics and Statistics 2015年第3期3卷 329-352页

作者： sen hu Peng Liu Wu Wen-Tsun Key Lab of Mathematics School of MathematicsUniversity of Science and Technology of ChinaChinese Academy of SciencesHefeiChina

Starting from the free field realization of Kac-Moody Lie algebra,we define a generalized Yang-Yang function.Then for the Lie algebra of type An,we derive braiding and fusion matrix by braiding the thimble from the generalized Yang-Yang function.One can construct a knots invariant H(K)from the braiding and fusion matrix.It is an isotropy invariant and obeys a skein relation.From them,we show that the corresponding knots invariant is HOMFLY polynomial.

关键词： Yang-Yang function Thimbles HOMFLY polynomials

Chang’e-5 samples reveal two-billion-year-old volcanic activity on the Moon and its source characteristics

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Science China Earth Sciences 2021年第12期64卷 2083-2089页

作者： Shoujie LIU Qin ZHOU Qiuli LI sen hu Wei YANG Institute of Geology Chinese Academy of Geological SciencesBeijing100037China National Astronomical Observatories Chinese Academy of SciencesBeijing100101China Institute of Geology and Geophysics Chinese Academy of SciencesBeijing100029China

The Chang’e-5 mission returned new lunar samples after the last sample mission of the Moon 44 years ago,and is also the first mission that China has completed the sampling of extraterrestrial bodies.Recently,independent teams from the Institute of Geology,Chinese Academy of Geological Sciences,and the National Astronomical Observatories and the Institute of Geology and Geophysics,Chinese Academy of Sciences reported the first batch of results of Chang’e-5 lunar samples.The basic physical properties of the Chang’e-5 soil are within the range of the Apollo and Luna samples though the Chang’e-5 soil is finer-grained,better sorted,and has a slightly lower true density than the mare basalt previosuly reported.The Pb-Pb dating of U-rich minerals in the Chang’e-5 basalt clasts indicated that they formed at about 2.0 Ga,800 million years younger than the youngest lunar sample recovered previously(2.8 Ga),confirming that lunar volcanic activity can last at least until 2 Ga.In-situ Sr-Nd isotope analyses suggested that the Chang’e-5 basalt originated from a depleted mantle source.The contribution of the KREEP component is less than 5%,which excluded the hypothesis that KREEP-rich sources provide an additional heat source for mantle melting.In addition,water contents and H isotopes of apatite and melt inclusions of the Chang’e-5 basalt suggested that the source region is not rich in water which can lower the melting point.Therefore,the reason why lunar volcanic activity can last so long is still unclear,which is a new direction for future lunar exploration and research.

关键词： Chang'e-5 Lunar soil Basalt Pb-Pb dating Sr-Nd isotopes Water H isotope

区块链嵌入供应链监管治理的研究——以有机农产品供应链为例

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重庆工商大学学报（社会科学版） 2024年第3期41卷 89-101页

作者：胡森森黄珊重庆工商大学重庆现代商贸物流与供应链协同创新中心重庆400067 电子科技大学经济与管理学院成都611731

针对有机农产品质量追溯系统缺乏事前事中监管以及监管治理措施缺乏动态性的问题,探索区块链技术嵌入后的监管治理策略。提出以区块链的共识机制实现欺诈惩罚,以区块链的激励机制实现声誉评分机制,以区块链的智能合约实现保证金机制,促... 详细信息

针对有机农产品质量追溯系统缺乏事前事中监管以及监管治理措施缺乏动态性的问题,探索区块链技术嵌入后的监管治理策略。提出以区块链的共识机制实现欺诈惩罚,以区块链的激励机制实现声誉评分机制,以区块链的智能合约实现保证金机制,促进有机农产品供应链主体的合作,实现有机追溯和监管的一体化。构建有机农产品供应链系统内有机农产品生产者与加工企业间的演化博弈模型,分析多元监管机制下各主体的决策和双方决策间的互动规律,以及最优策略抉择行为。以五常大米为研究案例,对相关结论和变化进行验证分析。研究结果显示,区块链嵌入能有效改善有机产品生产企业与加工企业之间的信任关系,促进诚信交易,提升有机农产品供应链事前和事后治理水平,并促进区块链技术的落地应用。

关键词：有机农产品供应链区块链监管机制演化博弈

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首次在嫦娥五号月壤中鉴定出铁陨石碎片类型

Science Bulletin 2024年第4期69卷 554-561页

作者：刘小莹谷立新田恒次李静唐旭胡森林杨挺 Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

Lunar soil preserves numerous fragments of meteorites impacting on the Moon,providing a unique opportunity to investigate the distribution of the types of projectiles over billions of years.Here we report the first discovery of an iron meteorite fragment from the Chang’e-5 lunar soil,which consists mainly of martensite(quenched from taenite),kamacite,and schreibersite,with a trace of pentlandite.The meteorite fragment is Ni-and P-rich,S-poor,and based on its mineral chemistry and bulk composition,can be classified into the IID-group,a rare and carbonaceous group of iron meteorite originating in the outer Solar System.This meteorite fragment experienced only limited partial melting followed by fast cooling,suggestive of efficient preservation of intact remnants of iron meteorites impacting on the porous lunar regolith.Alternatively,it is a relic of a low-velocity impact of submillimeter-sized metal grains originated from an IID-like iron meteorite.Our observations demonstrate that it is feasible to achieve the type distribution of meteorites impacting on the Moon via systematically analyzing a large number of metal grains separated from lunar soils,thus shedding light on the dynamic evolution of the Solar System.

关键词： Chang’e-5 lunar soils Metal clast Iron meteorite Schreibersite Impact event

High-throughput 16S rDNA sequencing of the pulmonary microbiome of rats with allergic asthma

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Genes & Diseases 2020年第2期7卷 272-282页

作者： Yang Xiong sen hu Hongyao Zhou hui Zeng Xuan He Dongni huang Xiaoyu Li Department of the First Clinical Medicine Chongqing Medical UniversityChongqing400016China College of Stomatology Chongqing Medical UniversityChongqing401331China Department of the Second Clinical Medicine Chongqing Medical UniversityChongqing400016China Department of Obstetrics First Affiliated HospitalChongqing Medical UniversityChongqing400016China Laboratory of Innovation Basic Medical Experimental Teaching CenterChongqing Medical UniversityChongqing401331China

A decrease in microbial infection in adolescents is implicated with an increase in the incidence of asthma and allergic diseases in adulthood,indicating that the microbiome plays a critical role in asthma.However,the microbial composition of the lower respiratory tract remains unclear,hindering the further exploration of the pathogenesis of asthma.This study aims to explore the microbial distribution and composition in the lungs of normal rats and rats with allergic asthma via 16S rDNA sequencing.The DNA of the pulmonary microbiome was extracted from the left lungs collected from normal control group(NC),saline control group(SC),and allergic asthma group(AA)under aseptic conditions.After the 16s rDNA V4eV5 region was amplified,the products were sequenced using Illumina high-throughput technology and subjected to operational taxonomic unit(OTU)cluster and taxonomy analysis.The OTU values of AA increased significantly compared with those of NC and SC.Microbiome structure analysis showed that the dominant phylum of the pulmonary microbiome changed from Proteobacteria in NC to Firmicutes in AA.Linear discriminant analysis indicated that the key microbiomes involved in the three groups varied.

关键词： 16S rDNA Allergic asthma Illumina sequencing Pulmonary microbiome Rats

Reflectance calibration and shadow effect of VNIS spectra acquired by the Yutu rover

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Research in Astronomy and Astrophysics 2015年第9期15卷 1587-1596页

作者： sen hu Yang-Ting Lin Bin Liu Wei Yang Zhi-Ping He Wei-Fan Xing Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics Chinese Academy of Sciences Key Laboratory of Lunar and Deep Space Exploration National Astronomical ObservatoriesChinese Academy of Sciences Key Laboratory of Space Active Opto-Electronics Technology Shanghai Institute of Technical Physics Chinese Academy of Sciences China University of Geosciences

Yutu is the first lunar rover after the Apollo program and Luna missions. One of the payloads on the Yutu rover, the Visible and Near-infrared Imaging Spectrometer （VNIS）, has acquired four VIS/NIR images and SWIR spectra near its landing site in Mare Imbrium. The radiance images were reduced through repairing bad lines and bad points, and applying flat field correction, and then were converted into reflectance values based on the solar irradiance and angles of incidence. A significant shadow effect was observed in the VIS/NIR image. The shadowed regions show lower reflectance with a darkening trend compared with illuminated regions. The re- flectance increased by up to 24% for entire images and 17% for the VIS/NIR-SWlR overlapping regions after shadow correction. The correction for the shadow effect will remarkably decrease the estimate of FeO content, by up to 4.9 wt.% in this study. The derived FeO contents of CD-005-008 after shadow correction are around 18.0 wt.%.

关键词： Moon -- Chang＇e-3 -- Yutu -- VNIS -- shadow -- reflectance

Construction of Au@Metal-organic framework for sensitive determination of creatinine in urine

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Journal of Innovative Optical Health Sciences 2021年第4期4卷 55-63页

作者： Yuning Jiang Yanzheng Cai sen hu Xiaoyu Guo Ye Ying Ying Wen Yiping Wu Haifeng Yang College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234P.R.China

Creatinine level in urine is an important biomarker for renal function diseases,such as renal failure,glomerulonephritis,and chronic nephritis.The Au@MIL-101(Fe)was prepared by in situ growth of Au nanoparticles in MIL-101(Fe)as a selective SERS substrate.The Au@MIL-101(Fe)offers the great local surface plasmon resonance(SPR)effect due to gold nanoparticles aggre-gation inside metal-organic frameworks.The framework structure could enrich trace target samples and drag them into SPR hot spots.The optimal Au@MIL-101(Fe)composite substrate is used for analyzing creatinine in urine and the limit of detection is down to 0.1μmol/L and a linear relationship is ranging from 1μmol/L to 100μmol/L.

关键词： surface enhanced Raman scattering Au@MIL-101(Fe) creatinine