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single-center retrospective study of the diagnostic value of doubleballoon enteroscopy in Meckel’s diverticulum with bleeding

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World Journal of Gastrointestinal surgery 2024年第4期16卷 1043-1054页

作者： Tian He Chao Yang Jing Wang Ji-sheng Zhong Ai-Hua Li Ya-Jing Yin Li-Ling Luo Chun-Mei rao Nian-Fen Mao Qiang Guo Zan Zuo Wen Zhang ping Wan Yunnan Digestive Endoscopy Clinical Medical Center Department of GastroenterologyThe First People’s Hospital of Yunnan ProvinceThe Affiliated Hospital of Kunming University of Science and TechnologyKunming 650032Yunnan ProvinceChina Department of Medicine Kunming University of Science and TechnologyKunming 650093Yunnan ProvinceChina school of Medicine Yunnan University of Traditional Chinese MedicineKunming 650011Yunnan ProvinceChina Department of Gastroenterology Qujing Hospital of Traditional Chinese MedicineQujing 655000Yunnan ProvinceChina Department of Gastroenterology Yunnan University of Traditional Chinese MedicineKunming 650011Yunnan ProvinceChina

BACKGROUND The study aimed to analyze the characteristic clinical manifestations of patients with intestinal disease Meckel’s diverticulum(MD)complicated by digestive tract ***,we aimed to evaluate the value of double-balloon enteroscopy(DBE)in MD diagnosis and the prognosis after laparoscopic diverticula *** To evaluate the value of DBE in the diagnosis and the prognosis after laparoscopic diverticula resection for MD with *** The study retrospectively analyzed relevant data from 84 MD patients treated between January 2015 and March 2022 and recorded their clinical manifestations,auxiliary examination,and follow-up after laparoscopic resection of ***(1)Among 84 MD patients complicated with hemorrhage,77 were male,and 7 were female with an average age of 31.31±10.75 *** incidence was higher in men than in women of different ages;(2)Among the 84 MD patients,65(78.40%)had defecated dark red stools,and 50(58.80%)had no accompanying symptoms during bleeding,indicating that most MD bleeding appeared a dark red stool without accompanying symptoms;(3)The shock index of 71 patients(85.20%)wassuggesting that the blood loss of most MD patients was less than 20%–30%,and only a few patients had a blood loss of>30%;(4)The DBE-positive rate was 100%(54/54),99mTcpertechnetate-positive scanning rate was 78%(35/45)compared with capsule endoscopy(36%)and small intestine computed tomography(19%).These results suggest that DBE and 99mTc-pertechnetate scans had significant advantages in diagnosing MD and bleeding,especially DBE was a highly precise examination method in MD diagnosis;(5)A total of 54 MD patients with hemorrhage underwent DBE examination before *** endoscopy revealed many mucosal manifestations including normal appearance,inflammatory changes,ulcerative changes,diverticulum inversion,and nodular hyperplasia,with ulcerative changes being the most common(53.70%).This suggests that diverticular mucosal u

关键词： Meckel’s diverticulum with bleeding Double-balloon colonoscopy 99mTc-pertechnetate scanning Capsule endoscopy Ectopic gastric mucosa

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Copy-Move Forgery Verification in Images Using Local Feature Extractors and Optimized Classifiers

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Big Data Mining and Analytics 2023年第3期6卷 347-360页

作者： s.B.G.Tilak Babu Ch srinivasa rao University College of Engineering JNTU KakinadaKakinada 533003India. Department of ECE JNTUK UCEVizianagaram 535003India.

passive image forgery detection methods that identify forgeries without prior knowledge have become a key research *** copy-move forgery,the assailant intends to hide a portion of an image by pasting other portions of the same *** detection of such manipulations in images has great demand in legal evidence,forensic investigation,and many other *** paper aims to present copy-move forgery detection algorithms with the help of advanced feature descriptors,such as local ternary pattern,local phase quantization,local Gabor binary pattern histogram sequence,Weber local descriptor,and local monotonic pattern,and classifiers such as optimized support vector machine and optimized *** proposed algorithms can classify an image efficiently as either copy-move forged or authenticated,even if the test image is subjected to attacks such as JpEG compression,scaling,rotation,and brightness ***,CAsIA,and MICC datasets and a combination of CoMoFoD and CAsIA datasets images are used to quantify the performance of the proposed *** proposed algorithms are more efficient than state-of-the-art algorithms even though the suspected image is post-processed.

关键词： copy move forgery detection image authentication passive image forgery detection blind forgery detection

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绿色并购有助于重污染企业塑造绿色形象吗?

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财经理论与实践 2024年第1期45卷 74-82页

作者：张娆刘晨杨小伟南京农业大学金融学院江苏南京210095

以2008—2021年我国A股重污染行业上市公司并购事件为研究对象,实证检验绿色并购对企业绿色形象的塑造作用、影响机制和作用场域。研究发现:绿色并购显著提升了重污染企业的绿色形象。进一步研究发现:绿色并购可通过提升绿色创新和社会... 详细信息

以2008—2021年我国A股重污染行业上市公司并购事件为研究对象,实证检验绿色并购对企业绿色形象的塑造作用、影响机制和作用场域。研究发现:绿色并购显著提升了重污染企业的绿色形象。进一步研究发现:绿色并购可通过提升绿色创新和社会责任水平塑造重污染企业的绿色形象;绿色并购塑造绿色形象存在明显的作用场域,主要发生于高管有绿色经历、上市公司位于环境重点城市和上市公司属于高质量人才密集型企业的情境下。将绿色并购与绿色形象相结合,不仅可拓展绿色并购的理论框架,同时,对企业践行绿色发展理念、树立良好形象亦具有重要参考意义。

关键词：绿色并购绿色形象重污染企业

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美国教师专业标准的功能定位及其背景与动因

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外国教育研究 2024年第5期51卷 3-17页

作者：王静饶从满吴宗劲东北师范大学国际与比较教育研究院吉林长春130024

标准的功能定位是影响教师标准价值实现的关键因素。而教师标准应该如何进行功能定位不可抽象而论,应置于特定的时空环境中加以审视。在提升教育质量成为压倒性诉求、以问责制为主导话语的教育改革时代,美国却选择了发展导向的教师标准... 详细信息

标准的功能定位是影响教师标准价值实现的关键因素。而教师标准应该如何进行功能定位不可抽象而论,应置于特定的时空环境中加以审视。在提升教育质量成为压倒性诉求、以问责制为主导话语的教育改革时代,美国却选择了发展导向的教师标准。美国之所以作出如此选择,背后有着教师地位不高进而影响教师供给的客观背景,职业专业主义的思想背景以及分权制背景下美国联邦政府期望透过发展导向教师标准干预教师质量提升的主观考量。

关键词：美国教师专业标准功能定位教师质量

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内圣外王的期盼:中国古代君德论及其特征

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河南师范大学学报（哲学社会科学版） 2024年第2期51卷 98-107页

作者：王记录刘饶河南师范大学教育学部/历史文化学院河南新乡453007

中国古代君德论起源于殷周,发展于两汉,兴盛于唐,繁荣于两宋,变革于明末清初,一脉相承而内容不断丰富。君德的内容包含了君主的德性、器识、才智、能力等诸多因素,主要体现在君主个人修养以及施政过程中如何处理君臣关系、君民关系等方... 详细信息

中国古代君德论起源于殷周,发展于两汉,兴盛于唐,繁荣于两宋,变革于明末清初,一脉相承而内容不断丰富。君德的内容包含了君主的德性、器识、才智、能力等诸多因素,主要体现在君主个人修养以及施政过程中如何处理君臣关系、君民关系等方面。完善君德的方式主要有经筵讲读、皇储教育、家训教化、大臣谏诤、史书褒贬。古代君德论特征鲜明,君主地位的尊崇、历史的教训与现实的需要是君德论的起点,儒家“修齐治平”“内圣外王”理论是君德论的思想基础,读经观史,以经为则、以史为鉴是完善君德的重要手段,“致君尧舜”是君德修养的重点。古人已经形成了一套围绕君主而展开的关于君德修养的理论体系。同时也要看到,古人讨论君德,既存在“师道”与“君道”之间无法调和的矛盾,也没有进行制度层面的反思,反映的只是一种泛道德化的政治伦理观。

关键词：君德论君主修养帝王学内圣外王历史教育

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新时代中国教师素养模型的理论建构

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教师教育研究 2024年第1期36卷 8-15页

作者：饶从满吴琼李晓东北师范大学国际与比较教育研究所吉林长春130024 陕西师范大学数学与统计学院陕西西安710119 哈尔滨师范大学西语学院黑龙江哈尔滨150025

制定实施教师专业标准或素养框架被视为提高教师质量和促进教师专业化的重要举措。我国也于2012-2015年期间相继颁布了一系列教师专业标准,这些标准也已经到了需要修订的节点。而建构新时代中国教师素养模型可以为修订《教师专业标准》... 详细信息

制定实施教师专业标准或素养框架被视为提高教师质量和促进教师专业化的重要举措。我国也于2012-2015年期间相继颁布了一系列教师专业标准,这些标准也已经到了需要修订的节点。而建构新时代中国教师素养模型可以为修订《教师专业标准》奠定必要的基础。项目组基于建构一个综合的、专业的、固本求新的教师素养模型这一立场,在借鉴荷兰2004年版教师素养框架的建构逻辑和佐藤学“学习的三位一体论”的基础上,确立了以教师的专业角色与专业关系为视角推导教师素养的基本思路,建构出覆盖认知素养、功能素养、社会素养和自我素养四个维度,由学科素养、通识素养、学习支持、全人教育、沟通合作、发展改进和师德情怀等七大素养构成的新时代中国教师素养模型。

关键词：教师素养素养模型专业标准

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spectroscopic investigations on Dy^(3+) ions doped zinc lead alumino borate glasses for photonic device applications

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Journal of Rare Earths 2019年第1期37卷 52-59,M0004页

作者： Nisha Deopa shubham saini sumandeep Kaur Aman prasad A.s.rao Department of Applied physics Delhi Technological University

This paper presents the structural, optical absorption, photoluminescence (pL) and decay spectral properties of Dy^(3+)ions doped zinc lead alumino borate (ZpAB) glasses to elucidate their possible usage in photonic devices such as w-LEDs and lasers. A broad hump shown by the XRD spectrum recorded for an un-doped ZpAB glass confirms its non-crystalline nature. The Judd-Ofelt (J-O) intensity parameter evaluated from the measured oscillator strengths of the absorption spectral features were used to estimate various radiative parameters and also to understand the nature of bonding between Dy^(3+)ions and oxygen ligands. Under 350 nm excitation, the as-prepared glasses are exhibiting two emission bands^4F_(9/2)→~6H_(15/2)(blue),and^4F_(9/2)→~6H_(13/2)(yellow) at 483 and 575 nm,respectively. From the pL spectra,the Y/B ratio values, CIE chromaticity color coordinates and color correlated temperature (CCT) were evaluated. The experimental lifetimes measured from the decay profiles are decreasing with increase in Dy^(3+)ions concentration in these glasses which may be attributed to the cross-relaxation and nonradiative multiphonon relaxation process. Decay profiles observed for higher concentration were well fitted to Inokuti-Hirayama (I-H) model to understand the energy transfer process and subsequent decrease in experimental lifetimes. The higher values of radiative parameters, emission cross-sections,quantum efficiency, optical gain and gain band width suggest the suitability of 0.5 mol%of Dy^(3+) ions in these ZpAB glasses for the photonic device application.

关键词： Glasses J-O parameters Luminescence Inokuti-Hirayama model Energy transfer Rare earths

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Gas Chromatography Analysis of Resin and Fatty Acids from Laboratory Generated Bleach plant Effluents

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中国造纸 2007年第5期26卷 29-33页

作者： Chhaya sharma s. Mohanty s. Kumar N.J. rao Department of paper Technology llT-Roorkeelndia Gas Authority of India Ltd. Calcutta India Jp Institute Gunna India

Laboratory generated spent bleached liquor from the chlorination, caustic extraction stage of mixed wood kraft pulp processing has been analyzed both qualitatively and quantitatively for various resin & fatty acids by using GC. A number of resin acids, saturated and unsaturated fatty acids, chloro fatty and resin acid have been detected and their concentrations are estimated. The results are compared with results on different agriculture residue/hardwood pulps, which were reported earlier. The concentrations of various compounds detected have also been compared with their reported LC50 values.

关键词：气相色谱分析脂肪酸树脂酸漂白废液

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Influence of local stiffeners and cutout shapes on the vibration and stability characteristics of quasi-isotropic laminates under hygro-thermo-mechanical loadings

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Defence Technology（防务技术） 2022年第12期18卷 2107-2124页

作者： T.Rajanna K.s.subash Chandra K.Venkata rao Department of Civil Engineering B.M.S College of EngineeringBengaluru560019India Research scholar B.M.S College of EngineeringBengaluru560019India Department of Mechanical Engineering B.M.S Evening College of EngineeringBengaluru560019India Department of Mechanical Engineering Government PolytechnicBagepalli561207India

The perforated stiffened panel is generally found as a sub-component of sophisticated *** fundamental purpose of this panel is to withstand against buckling under complicated loading and environmental ***,an accurate knowledge of critical buckling behaviour of stiffened panels is very much essential for a reliable and lightweight structural *** this paper,the focus is on quasi-laminated panels with different cutout shapes of various sizes and their responses to hygrothermal environments under nonlinearly varying edge loads and is compared with the locally stiffened *** this,the modelling of the panel and stiffener is done by adopting nine-noded heterosis plate elements and three noded beam elements *** stiffener formulation is suitably modified in order to take the torsional effect also into consideration along with the effect of shear ***,the plate and the stiffener elements are treated separately,and then the displacement compatibility is maintained between them by using the transformation *** a given loading and geometric discontinuity,the stress distribution within the perforated panel is highly non-uniform in nature and hence a dynamic approach has been used to calculate buckling loads by adopting two sets of boundary conditions,one set for pre-buckling stress analysis and the second set for buckling *** different quasi-isotropic stacking sequences are deliberated in this work by varying different ply-orientation in each *** study also addresses the effect of various parameters such as nonlinear loads,hygro-thermal loads,cutout size and shapes,position of cutout,stiffener parameters,stacking sequences,thickness of plate and boundary conditions.

关键词： Locally stiffened panels Buckling Vibration Cutouts Heterosis Hygrothermal environment

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Evaluation of physical and mechanical properties of AZ91D/siC composites by two step stir casting process

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Journal of Magnesium and Alloys 2015年第1期3卷 52-62页

作者： s.Aravindan p.V.rao K.ponappa Department of Mechanical Engineering Indian Institute of Technology-DelhiDelhi 110016India Department of Mechanical Engineering Kongu Engineering CollegePerundurai 638052India

Magnesium alloy(AZ91D)composites reinforced with silicon carbide particle with different volume percentage were fabricated by two step stir casting *** effect of changes in particle size and volume fraction of siC particles on physical and mechanical properties of composites were evaluated under as cast and heat treated(T6)*** experimental results were compared with the standard theoretical *** results reveal that the mechanical properties of composites increased with increasing siC particles and decrease with increasing particle *** of particles and fractured surface were studied through sEM and the presence of elements is revealed by EDs study.

关键词： Magnesium alloy Metal-matrix composites(MMCs) Mechanical properties Casting Fractography

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