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Management of parastomal ulcers

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World Journal of Gastroenterology 2006年第20期12卷 3133-3137页

作者： Heather Yeo Farshad Abir Walter e Longo Department of Surgery Yale University School of Medicine United States

Management of surgically placed ostomies is an important aspect of any general surgical or colon and rectal surgery practice. Complications with surgically placed ostomies are common and their causes are multifactorial. Parastomal ulceration, although rare, is a particularly difficult management problem. We conducted a literature search using MD Consult, Science Direct, OViD, Medline, and Cochrane Databases to review the causes and management options of parastomal ulceration. Both the etiology and treatments are varied. Different physicians and ostomy specialists have used a large array of methods to manage parastomal ulcers; these including local wound care; steroid creams; systemic steroids; and, when conservative measures fail, surgery. Most patients with parastomal ulcers who do not have associated iBD or peristomal pyoderma gangrenosum （PPG） often respond quickly to local wound care and conservative management. Patients with PPG, iBD, or other systemic causes of their ulceration need both systemic and local care and are more likely to need long term treatment and possibly surgical revision of the ostomy. The treatment is complicated, but improved with the help of ostomy specialists.

关键词： Parastomal ulcers Peristomal ulcers Ostomies Complications

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高效溶气气浮设备的分析与应用

冶金设备管理与维修 2024年第2期42卷 53-54,58页

作者：张伟勃崔岚鄂立新丛伟本钢浦项冷轧薄板有限责任公司辽宁本溪117000

对高效溶气气浮设备的工艺原理、设计参数及整体设备的组成、性能特点、管式反应器特点、无堵塞溶气释放系统、刮渣排泥系统进行了分析论述。高效溶气气浮设备能够去除污水中的悬浮物、油脂、浊度、有机物等,提高处理后的水质指标,达到... 详细信息

对高效溶气气浮设备的工艺原理、设计参数及整体设备的组成、性能特点、管式反应器特点、无堵塞溶气释放系统、刮渣排泥系统进行了分析论述。高效溶气气浮设备能够去除污水中的悬浮物、油脂、浊度、有机物等,提高处理后的水质指标,达到回收利用更多废水的效果。

关键词：高效溶气管式反应器释放系统刮渣

Hysteresis loop behaviors of ferroelectric thin films: A Monte Carlo simulation study

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Chinese Physics B 2015年第11期24卷 492-496页

作者： C.M.Bedoya-Hincapié H.H.Ortiz-varez e.Restrepo-Parra J.J.Olaya-Flrez J.e.Alfonso PCM Computational Applications Universidad Nacional de Colombia Univesidad Santo Tomás Universidad de Caldas AFiS Análisis de Fallas Integridad y Superficies Universidad Nacional de Colombia Grupo de Ciencia de Materialesy superficies Departamento de Física Universidad Nacional de Colombia

The ferroelectric response of bismuth titanate Bi4Ti3O12 （BiT） thin film is studied through a Monte Carlo simulation of hysteresis loops. The ferroelectric system is described by using a Diffour Hamiltonian with three terms： the electric field applied in the z direction, the nearest dipole-dipole interaction in the transversal （x-y） direction, and the nearest dipole-dipole interaction in the direction perpendicular to the thin film （the z axis）. in the sample construction, we take into consideration the dipole orientations of the monoclinic and orthorhombic structures that can appear in BiT at low temperature in the ferroelectric state. The effects of temperature, stress, and the concentration of pinned dipole defects are assessed by using the hysteresis loops. The results indicate the changes in the hysteresis area with temperature and stress, and the asymmetric hysteresis loops exhibit evidence of the imprint failure mechanism with the emergence of pinned dipolar defects. The simulated shift in the hysteresis loops conforms to the experimental ferroelectric response.

关键词： ferroelectrics bismuth titanate hysteresis loop dipolar defects

iM-eDRD from Retinal Fundus images Using Multi-Level Classification Techniques

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intelligent Automation & Soft Computing 2023年第1期35卷 567-580页

作者： M.P.Karthikeyan e.A.Mary Anita Department of Computer Science and engineering R.M.K.Engineering CollegeChennai601206India Department of Computer Science and engineering School of Engineering and TechnologyChrist UniversityBengaluru560029India

in recent years,there has been a significant increase in the number of people suffering from eye illnesses,which should be treated as soon as possible in order to avoid *** Fundus images are employed for this purpose,as well as for analysing eye abnormalities and diagnosing eye *** can be recognised as bright lesions in fundus pictures,which can be thefirst indicator of diabetic *** that in mind,the purpose of this work is to create an integrated Model for exudate and Diabetic Retinopathy Diagnosis(iM-eDRD)with multi-level *** model uses Support Vector Machine(SVM)-based classification to separate normal and abnormal fundus images at thefirst *** input pictures for SVM are pre-processed with Green Channel extraction and the retrieved features are based on Gray Level Co-occurrence Matrix(GLCM).Furthermore,the presence of exudate and Diabetic Retinopathy(DR)in fundus images is detected using the Adaptive Neuro Fuzzy inference System(ANFiS)classifier at the second level of *** detection,blood vessel extraction,and Optic Disc(OD)detection are all processed to achieve suitable ***,the second level processing comprises Morphological Component Analysis(MCA)based image enhancement and object segmentation processes,as well as feature extraction for training the ANFiS classifier,to reliably diagnose ***,thefindings reveal that the proposed model surpasses existing models in terms of accuracy,time efficiency,and precision rate with the lowest possible error rate.

关键词： Retinal fundus images exudate diabetic retinopathy SVM ANFiS morphological component analysis

Digital twins and multi-access edge computing for iioT

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Virtual Reality & intelligent Hardware 2022年第6期4卷 521-534页

作者： Andreas P.PLAGeRAS Konstantinos e.PSANNiS Department of Applied informatics University of Macedonia54636Greece

Background All recent technological findings can be collectively used to strengthen the industrial internet of things(iioT)*** novel technology of multi-access edge computing or mobile edge computing(MeC)and digital twins have advanced rapidly in the *** is the middle layer between mobile devices and the cloud,and it provides scalability,reliability,security,efficient control,and storage of *** twins form a communication model that enhances the entire system by improving latency,overhead,and energy *** The main focus in this study is the biggest challenges that researchers in the field of iioT have to overcome to obtain a more efficient communication environment in terms of technology integration,efficient energy and data delivery,storage spaces,security,and real-time control and ***,a distributed system is established in a local network,in which several functions *** addition,an MeC-based framework is proposed to reduce traffic and latency by merging the processing of data generated by iioT devices at the edge of the *** critical parts of the proposed iioT system are evaluated by using emulation *** The results show that data delivery and offloading are performed more efficiently,energy consumption and processing are improved,and security,complexity,control,and reliability are *** The proposed framework and application provide authentication and integrity to end users and ioT devices.

关键词： Digital twins energy efficiency iioT Load balance MCC MeC Protocols

The first pterosaur 3-D egg:implications for Pterodaustro guinazui nesting strategies,an Albian filter feeder pterosaur from central Argentina

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Geoscience Frontiers 2014年第6期5卷 759-765页

作者： Gerald Grellet-Tinner Michael B.Thompson Lucas e.Fiorelli eloísa Argaaraz Laura Codorniú e.Martín Hechenleitner Centro Regional de investigaciones Científicas y Transferencia Tecnológica de La Rioja (CRiLAR-CONiCeT) Entre Ríos y Mendoza s/nAnillaco5301 La RiojaArgentina Orcas island Historical Museums USA School of Biological Sciences (A08) University of SydneyNSW 2006Australia CONiCeT Argentina Centro de investigaciones Paleobiológicas (CiPAL) Universidad Nacional de CórdobaAv.Vélez Sarsfield 2995000 CórdobaArgentina Departamento de Geología Universidad Nacional de San LuisSan LuisArgentina

The increasing number of fossil pterosaur eggs sheds light on nesting environments and breeding be- haviors of these extinct flying reptiles. Here we report the first partial three-dimensional egg of the pterosaur, Pteroduustro guinazui, from central Argentina. The specimen was discovered from the same Albian deposits as the exceptional R guinazui embryo described in 2004. Microscopic characterizations indicate a pristine preservation of the 50 Bm thick calcium carbonate, which differs significantly from the soft shell of Chinese pterosaur eggs. estimate of the eggshell conductance implies that the nest had a minimum moisture content of 75%. This moisture estimate, combined with geological and taphonomical data, suggests that P. guinazui may have adopted a nesting strategy similar to those of grebes and flamingos rather than being buried on land, as previously hypothesized. Moreover, our results demon- strate that the nesting paleoenvironment of this pterosaur species was closely linked to a mesohaline lacustrine ecosystem in a basin governed by regional tectonic subsidence, a setting characteristic for the feeding and reproduction of modern flamingos.

关键词： Pterosaur fossil eggsPterosaur eggshellPterodaustro guinazuiGondwanaeggshell conductance

外源赤霉素处理影响湖北梣种子萌发过程的生理机制

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湖北农业科学 2024年第5期63卷 70-76,83页

作者：赵怡宁刘彦宏郑鹏丽周明芹长江大学园艺园林学院湖北荆州434000

以常温贮藏2年的湖北梣(Fraxinus hupehensis Chiú.Shang et Su)种子为研究对象,试验前去除种子胚根端被覆组织以露出胚根。以清水作对照,用150 mg/L赤霉素浸种24 h后,测定种子萌发过程中生理生化指标及内源激素含量的变化。结果表明,... 详细信息

以常温贮藏2年的湖北梣(Fraxinus hupehensis Chiú.Shang et Su)种子为研究对象,试验前去除种子胚根端被覆组织以露出胚根。以清水作对照,用150 mg/L赤霉素浸种24 h后,测定种子萌发过程中生理生化指标及内源激素含量的变化。结果表明,赤霉素浸种可以提高种子发芽率,赤霉素处理后种子发芽率为24.67%,对照为16.67%;萌发过程中,赤霉素处理后种子可溶性糖含量呈先上升再下降的变化趋势;可溶性蛋白质含量呈下降趋势,各时期均显著高于对照;超氧化物歧化酶(SOD)活性、过氧化物酶(POD)活性、过氧化氢酶(CAT)活性整体呈上升趋势;赤霉素处理后的种子内源茉莉酸甲酯(JA-Me)含量均显著低于对照,更有利于内源赤霉素(GA_(3))、玉米素核苷(ZR)含量的增加;生长素比脱落酸(iAA/ABA)与赤霉素比脱落酸(GA_(3)/ABA)和玉米素核苷比脱落酸(ZR/ABA)分别在0.01和0.001水平上呈显著正相关;GA_(3)/ABA与ZR/ABA在0.001水平上呈显著正相关。赤霉素浸种显著提高了湖北梣种子的发芽率,处理后的种子平衡保护酶活性系统较强,质膜受损延缓,抗逆能力较好。较低内源JA-Me含量和较高内源GA_(3)、ZR有利于种子萌发的启动和休眠的解除。

关键词：湖北梣(Fraxinus hupehensis Chiú.Shang et Su) 种子生理生化萌发赤霉素

ON CORReCT ACCOUNT OF FiNiTe ROTATiONS iN FiNiTe PLASTiCiTY THeORY

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Acta Mechanica Sinica 1992年第3期8卷 253-260页

作者： V.i.LeViTAS (institute of Superhard Materials of the Ukrainian Academy of Sciences,Kiev,Ukraine) institute for Superhard Materials of the Ukrainian Academy of Sciences Kiev Ukraine

The non-uniqueness of the transition from nonobjective constitutive relations to objective ones with the use of the principle of material frame-indifference(PMFi)is *** eliminate it,the concept of finite strain without rotations(FSWR)for a given material type and each strain component(elastic,plastic) is *** FSWR the rotation is excluded with respect to the natural preferred configuration for a given *** are a simple solid,a liquid,a mouocrystal,a polycrystal and a *** procedure is proposed lbr consistent generalization of known infinitesimal relations for finite strains and rota- *** structure of constitutive relations is derived for anisotropic elasto-plastic mono-and polycrystalline materials.

关键词： finite rotation finite plasticity material frame-indifference constitutive relations objective derivatives

Hypnosis and upper digestive function and disease

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World Journal of Gastroenterology 2008年第41期14卷 6276-6284页

作者： Giuseppe Chiarioni Olafur S Palsson William e Whitehead Division of Gastrointestinal Rehabilitation of the University of Verona Valeggio sul Mincio Hospital Azienda Ospedaliera and University of Verona Valeggio sul Mincio UNC Center for Functional Gastrointestinal and Motility Disorders University of North Carolina at Chapel Hill Chapel Hill

Hypnosis is a therapeutic technique that primarily involves attentive receptive concentration. even though a small number of health professionals are trained in hypnosis and lingering myths and misconceptions associated with this method have hampered its widespread use to treat medical conditions hypnotherapy has gained relevance as an effective treatment for irritable bowel syndrome not responsive to standard care. More recently, a few studies have addressed the potential infl uence of hypnosis on uppe digestive function and disease. This paper reviews the efficacy of hypnosis in the modulation of uppe digestive motor and secretory function. The presen evidence of the effectiveness of hypnotherapy as a treatment for functional and organic diseases o the upper bowel is also summarized, coupled with a discussion of potential mechanisms of its therapeutic action.

关键词： Hypnosis Hypnotherapy Gastric emptying Small bowel transit Functional dyspepsia Functional esophageal disorders Functional bowel disorders