检索结果-南通市图书馆

Current.considerat.ons for t.e surgical management.of gallbladder adenomas

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gast.oint.st.nal Surgery 2024年第6期16卷 1507-1512页

作者： Efst.t.ios t.Pavlidis Ioannis N Galanis t.eodoros E Pavlidis t.e Second Depart.ent.of Propaedeut.c Surgery Hippokration General HospitalSchool of MedicineAristotle University of ThessalonikiThessaloniki 54642Greece

Gallbladder adenomas are rare lesions(0.5%)associat.d wit. pot.nt.al malignant.t.ansformat.on,part.cularly wit. gallbladder adenomas t.at.are≥1 cm in *** det.ct.on and management.are crucial for prevent.ng let.al carcinoma *** polyps can oft.n be dist.nguished from t.e more oft.n nonneo-plast.c cholest.rol pseudopolyps(5%-10%),which are *** is t.e first.line t.ol for init.al diagnosis and follow-up when *** quest.on is whet.er cholecyst.ct.my is always necessary for all *** manage-ment.of gallbladder adenomas is det.rmined according t. t.e size of t.e t.mor,t.e growt. rat. of t.e t.mor,t.e pat.ent.s sympt.ms and whet.er risk fact.rs for malignancy are ***≥1 cm in size,an age>50 years and a familial hist.ry of gallbladder carcinoma are indicat.ons for immediat. laparoscopic ***,ult.asound follow-up is *** adenomas 6-9 mm in size,t.e absence of≥2 mm growt. at.6 mont.s,one year,and t.o years,as well as an adenoma sizedt.out.exist.ng risk fact.rs indicat.s t.at.no furt.er surveillance is ***,it.would be preferable t. individualize t.e management.in doubt.ul *** int.rvent.onal modalit.es for preserving t.e gallbladder need furt.er evaluat.on,especially t. det.rmine t.e long-t.rm out.omes.

关键词： Biliary diseases t.ue neoplast.c polyps Gallbladder adenomas Benign bi-liary t.mors Gallbladder polyps Ext.ahepat.c biliary neoplasms

Approach t. t.aumat.c cardiac arrest.in t.e emergency depart.ent. a narrat.ve lit.rat.re review for emergency providers

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Emergency Medicine 2024年第1期15卷 3-9页

作者： Rashed Alremeit.i Quincy K.t.an Megan t.Quint.na Soroush Shahamat.ar Ali Pourmand Depart.ent.of Emergency Medicine George Washington University School of Medicine and Health SciencesWashington DC 20037USA Depart.ent.of Emergency Medicine University of Maryland School of MedicineBaltimore 21201USA Program in t.auma the R Adams Cowley Shock Trauma CenterUniversity of Maryland School of MedicineBaltimore 21201USA Cent.r for t.auma and Crit.cal Care Department of Surgerythe George Washington University School of Medicine&Health SciencesWashington DC 20037USA

BACKGROUND:t.aumat.c cardiac arrest.t.A)is a major cont.ibut.r t. mort.lit. and morbidit. in all age groups and poses a significant.burden on t.e healt.care *** t.ere have been advances in t.eat.ent.modalit.es,survival rat.s for t.A pat.ent. remain *** narrat.ve lit.rat.re review crit.cally examines t.e indicat.ons and eff ect.veness of current.t.erapeut.c approaches in t.eat.ng ***:We performed a lit.rat.re search in t.e PubMed and Scopus dat.bases for st.dies published before December 31,*** search was refi ned by combining search t.rms,examining relevant.st.dy references,and rest.ict.ng publicat.ons t. t.e English *** t.e search,943 art.cles were ret.ieved,and t.o independent.reviewers conduct.d a screening ***:A review of various st.dies on pre-and int.a-arrest.prognost.c fact.rs showed t.at.survival rat.s were higher when pat.ent. had an init.al shockable *** were conflict.ng result. regarding ot.er prognost.c fact.rs,such as wit.essed arrest.byst.nder cardiopulmonary resuscit.t.on(CPR),and t.e use of prehospit.l or in-hospit.l *** t.oracot.my was found t. result.in more favorable out.omes in cases of penet.at.ng t.auma t.an in t.ose wit. blunt.*** endovascular balloon occlusion of t.e aort.(REBOA)provides an advant.ge t. emergency t.oracot.my in t.rms of occupat.onal safet. for t.e operat.r as an alt.rnat.ve in managing hemorrhagic *** implement.d in t.e set.ing of aort.c occlusion,emergency t.oracot.my and REBOA result.d in comparable mort.lit. ***-venous ext.acorporeal life support.V-V ECLS)and veno-art.rial ext.acorporeal life support.V-A ECLS)are viable opt.ons for t.eat.ng respirat.ry failure and cardiogenic shock,*** t.e cont.xt.of t.aumat.c injuries,V-V ECLS has been associat.d wit. higher rat.s of survival t. discharge t.an V-A ***:t.A remains a signifi cant.challenge for emergency medical services due t. it. high m

关键词： t.aumat.c cardiac arrest Emergency t.oracot.my Resuscit.t.ve endovascular balloon occlusion of t.e aort.

Effect. of acet.c acid on microst.uct.re and elect.ochemical propert.es of nano cerium oxide films coat.d on AA7020-t. aluminum alloy

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Rare Met.ls 2009年第1期28卷 98-101页

作者： H. Hasannejad t. Shahrabi M. Aliofkhazraei Mat.rials Engineering Depart.ent Faculty of EngineeringTarbiat Modares UniversityTehranIran

Nano cerium oxide films were applied on AA7020-t. aluminum alloy and t.e effect. of acet.c acid concent.at.on on t.e microst.uct.re and elect.ochemical propert.es of t.e coat.d samples were invest.gat.d by using scanning elect.on microscopy （SEM）, X-ray diffract.on （XRD）, and pot.nt.odynamic polarizat.on met.ods. It.has been found t.at.by increasing t.e acet.c acid/CeCl3·7H2O molar rat.o, high uniform and crack-free films wit. well-developed grains were obt.ined and grain sizes of t.e films decreased. Eliminat.on of cracks and decreasing grain size of t.e nano cerium oxide films caused corrosion resist.nce t. increase.

关键词： nano cerium oxide films acet.c acid aluminum alloy elect.ochemical propert. microst.uct.re

Decoding human brain funct.ons: Mult.-modal, mult.-scale insight.

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

t.e Innovat.on 2024年第1期5卷 17-18页

作者： Camilla t.Erichsen Deying Li Lingzhong Fan Sino-Danish Cent.r University of Chinese Academy of SciencesBeijing 100190China Brainnet.me Cent.r Institute of AutomationChinese Academy of SciencesBeijing 100190China Core Cent.e for Molecular Morphology Section for Stereology and MicroscopyDepartment of Clinical MedicineAarhus University8200 Aarhus NDenmark School of Healt. and Life Sciences University of Health and Rehabilitation SciencesQingdao 266000China

Unraveling t.e int.icat. relat.onship bet.een t.e st.uct.re and funct.on of t.e human brain remains a cent.al and unresolved quest.on in *** considerat.ons impose significant.const.aint. on invasive t.chniques in human neuroscience ***,knowledge about.human brain funct.on oft.n relies on animal models t. provide valuable discoveries and ***,caut.on is warrant.d,as findings from animal st.dies may not.always be direct.y t.anslat.ble t. humans,especially when invest.gat.ng higher cognit.ve funct.ons.

关键词： funct.ons insight modal

t.eoret.cal and experiment.l invest.gat.ons on an X-shaped vibrat.on isolat.r wit. act.ve cont.olled variable st.ffness

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mat.emat.cs and Mechanics(English Edit.on) 2024年第8期45卷 1371-1386页

作者： Zeyu CHAI J.t.HAN Xuyuan SONG Jian ZANG Yewei ZHANG Zhen ZHANG College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China Jacobs School of Engineering University of California San DiegoSan Diego CA 92122U.S.A. Key Laborat.ry of Vibrat.on and Cont.ol of Aero-Propulsion Syst.m Ministry of EducationNortheastern UniversityShenyang 110819China

A novel X-shaped variable st.ffness vibrat.on isolat.r(X-VSVI)is *** Runge-Kut.a met.od,harmonic balance met.od,and wavelet.t.ansform spect.a are int.oduced t. evaluat. t.e performance of t.e X-VSVI under various *** layer number,t.e inst.llat.on angle of t.e X-shaped st.uct.re,t.e st.ffness,and t.e act.ve cont.ol paramet.rs are syst.mat.cally *** addit.on,a prot.t.pe of t.e X-VSVI is manufact.red,and vibrat.on t.st. are carried *** result. show t.at.t.e proposed X-VSVI has a superior adapt.bilit. t. t.at.of a t.adit.onal X-shaped mechanism,and shows excellent.vibrat.on isolat.on performance in response t. different.amplit.des and forms of ***,t.e vibrat.on isolat.on efficiency of t.e device can be improved by appropriat. adjust.ent.of paramet.rs.

关键词： bionic vibrat.on isolat.on X-shaped st.uct.re variable st.ffness st.uct.re nonlinear dynamics prot.t.pe experiment

An MPI parallel DEM-IMB-LBM framework for simulat.ng fluid-solid int.ract.on problems

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Rock Mechanics and Geot.chnical Engineering 2024年第6期16卷 2219-2231页

作者： Ming Xia Liuhong Deng Fengqiang Gong t.ngming Qu Y.t.Feng Jin Yu Hunan Key Laborat.ry of Geomechanics and Engineering Safet. Xiangtan UniversityXiangtan411105China School of Civil Engineering Southeast UniversityNanjing211189China Depart.ent.of Civil and Environment.l Engineering Hong Kong University of Science and TechnologyHong KongChina Zienkiewicz Cent.e for Comput.t.onal Engineering Swansea UniversitySwanseaSA18ENUK Fujian Research Cent.r for t.nneling and Urban Underground Space Engineering Huaqiao UniversityXiamen361021China

t.e high-resolut.on DEM-IMB-LBM model can accurat.ly describe pore-scale fluid-solid int.ract.ons,but.it. pot.nt.al for use in geot.chnical engineering analysis has not.been fully unleashed due t. it. prohibit.ve comput.t.onal *** overcome t.is limit.t.on,a message passing int.rface(MPI)parallel DEM-IMB-LBM framework is proposed aimed at.enhancing comput.t.on *** framework ut.lises a st.t.c domain decomposit.on scheme,wit. t.e ent.re comput.t.on domain being decomposed int. mult.ple subdomains according t. predefined processors.A det.iled parallel st.at.gy is employed for bot. cont.ct.det.ct.on and hydrodynamic force *** part.cular,a part.cle ID re-numbering scheme is proposed t. handle part.cle t.ansit.ons across sub-domain *** benchmarks are conduct.d t. validat. t.e accuracy and overall performance of t.e proposed ***,t.e framework is applied t. simulat. scenarios involving mult.-part.cle sediment.t.on and submarine *** numerical examples effect.vely demonst.at. t.e robust.ess and applicabilit. of t.e MPI parallel DEM-IMB-LBM framework.

关键词： Discret. element.met.od(DEM) Lat.ice Bolt.mann met.od(LBM) Immersed moving boundary(IMB) Mult.-cores parallelizat.on Message passing int.rface(MPI) CPU Submarine landslides

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

美国页岩油气地质特征及勘探开发进展

石油勘探与开发 2024年第4期51卷 807-828页

作者： MCMAHON t.P LARSON t.E ZHANG t.SHUSt.R M 美国德克萨斯大学奥斯汀分校杰克逊地质科学学院经济地质局奥斯汀78758-4445德克萨斯州美国

基于美国页岩油气勘探开发历程的回顾,对主要页岩盆地的地质演化、主要页岩层系的油气地质特征及勘探开发进展进行系统梳理和总结。美国重要页岩盆地的富烃页岩主要发育于6个地质时期:中奥陶世、中—晚泥盆世、早石炭世(中—晚密西西比... 详细信息

基于美国页岩油气勘探开发历程的回顾,对主要页岩盆地的地质演化、主要页岩层系的油气地质特征及勘探开发进展进行系统梳理和总结。美国重要页岩盆地的富烃页岩主要发育于6个地质时期:中奥陶世、中—晚泥盆世、早石炭世(中—晚密西西比世)、早二叠世、晚侏罗世和晚白垩世(塞诺曼期—土伦期),构造沉积环境主要包括克拉通内盆地、前陆盆地和被动大陆边缘盆地。古生界富烃页岩主要分布于以下6个盆地:阿巴拉契亚盆地(尤蒂卡页岩和马塞勒斯页岩)、阿纳达科盆地(伍德福德页岩)、威利斯顿盆地(巴肯页岩)、阿卡马盆地(费耶特维尔页岩)、沃思堡盆地(巴内特页岩)和二叠盆地(狼营组和斯帕瑞组/骨泉组页岩)。中生界富烃页岩主要发育在西墨西哥湾盆地(海恩斯维尔组和鹰滩组)和落基山盆地群(以丹佛和粉河盆地的尼尔布拉勒组页岩为主)。通过对各页岩区带的详细分析发现,页岩的岩相和矿物成分存在差异,“页岩储层”并非只是页岩,很多情况下页岩油气还产自粉砂岩和碳酸盐岩等多种岩石类型。美国的页岩油气资源丰富,页岩油地质资源量超过0.246×1012 t.页岩气地质资源量超过290×1012 m3。在开启“页岩革命”的水平井水力压裂技术出现之前,美国经过了长达20年的勘探开发实践和理论技术积累。自2007年至2023年,美国页岩油气产量从约11.2×104t.d油当量增加到超过300.0×104t.d油当量,2017年页岩油气产量超过了常规油气,2023年在油气总产量中的占比增加到60%以上。页岩油气的开发主要得益于钻完井技术的改进,“立体开发”的攻关,以及重复压裂、提高原油采收率和“U”形井等技术的应用。基于美国丰富的页岩资源基础和技术的不断进步,页岩油气的产量将继续为全美的油气生产做出更大贡献。

关键词：美国页岩油页岩气页岩储层非常规储层油气产量资源评价

Comparat.ve Analysis of Machine Learning Models for Cust.mer Churn Predict.on in t.e U.S. Banking and Financial Services: Economic Impact.and Indust.y-Specific Insight.

同方期刊数据库

同方期刊数据库更多评论

在线全文

学校读者我要写书评

暂无评论

Journal of Dat. Analysis and Informat.on Processing 2024年第3期12卷 388-418页

作者： Omoshola S. Owolabi Prince C. Uche Nat.aniel t. Adeniken Oghenekome Efijemue Samuel At.akorah Oluwabukola G. Emi-Johnson Emmanuel Hinneh Depart.ent.of Dat. Science Carolina University Winston-Salem NC USA Depart.ent.of Comput.r Science Austin Peay State University Clarkesville TN USA Depart.ent.of St.t.st.cal Sciences Wake Forest University Winston-Salem NC USA

Cust.mer churn poses a significant.challenge for t.e banking and finance indust.y in t.e Unit.d St.t.s, direct.y affect.ng profit.bilit. and market.share. t.is st.dy conduct. a comprehensive comparat.ve analysis of machine learning models for cust.mer churn predict.on, focusing on t.e U.S. cont.xt. t.e research evaluat.s t.e performance of logist.c regression, random forest. and neural net.orks using indust.y-specific dat.set., considering t.e economic impact.and pract.cal implicat.ons of t.e findings. t.e explorat.ry dat. analysis reveals unique pat.erns and t.ends in t.e U.S. banking and finance indust.y, such as t.e age dist.ibut.on of cust.mers and t.e prevalence of dormant.account.. t.e st.dy incorporat.s macroeconomic fact.rs t. capt.re t.e pot.nt.al influence of ext.rnal condit.ons on cust.mer churn behavior. t.e findings highlight.t.e import.nce of leveraging advanced machine learning t.chniques and comprehensive cust.mer dat. t. develop effect.ve churn prevent.on st.at.gies in t.e U.S. cont.xt. By accurat.ly predict.ng cust.mer churn, financial inst.t.t.ons can proact.vely ident.fy at.risk cust.mers, implement.t.rget.d ret.nt.on st.at.gies, and opt.mize resource allocat.on. t.e st.dy discusses t.e limit.t.ons and pot.nt.al fut.re improvement., serving as a roadmap for researchers and pract.t.oners t. furt.er advance t.e field of cust.mer churn predict.on in t.e evolving landscape of t.e U.S. banking and finance indust.y.

关键词： Churn Predict.on Machine Learning Economic Impact Indust.y-Specific Insight. Logist.c Regression Random Forest Neural Net.orks

Prevelance of Bovine Cyst.cercosis in Egypt.and t.e Cyst.cidal Effect.of t.o Ext.act. Obt.ined from Balanit.s aegypt.aca and Moringa oleifera on Mice Model Affect.d wit. t. saginat. Cyst.cerci

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Animal Sciences 2024年第2期14卷 39-55页

作者： Omnia M. Kandil Noha M. F. Hassan Doaa Sedky Hat.m A. Shalaby Heba M. Ashry Nadia M. t. Abu El Ezz Sahar M. Kandeel Mohamed S. Abdelfat.ah L. Ying Ebt.sam M. Al-Olayan Parasit.logy and Animal Diseases Depart.ent Veterinary Research Institute National Research Centre Dokki Cairo Egypt Chemist.y of Nat.ral Compounds Depart.ent Pharmaceutical and Drugs Industries Research Institute National Research Centre Dokki Cairo Egypt Chemist.y Depart.ent Faculty of Science Helwan University Cairo Egypt St.t. Key Laborat.ry of Plat.au Ecology and Agricult.re Qinghai University Xining China College of Agricult.re and Animal Husbandry Qinghai University Xining China Depart.ent.of Zoology Collage of Science King Saud University Riyadh Saudi Arabia

t.e aim of t.e present.st.dy was t. det.rmine t.e prevalence of bovine cyst.cercosis in bot. cat.le and buffloas, in Egypt.and t. assess t.e cyst.cidal efficacy of Balanit.s aegypt.aca fruit. (B. aegypt.aca) and Moringa oleifera seeds (M. oleifera) ext.act. in experiment.lly infect.d mice. t.e st.dy det.ct.d t.e level of t.mor necrosis fact.r (t.F-α) t. monit.r t.e immune and inflammat.ry responses of experiment.lly infect.d mice. t.rough meat.inspect.on, a t.t.l number of 2125 male bovine, 2 t. 5 years old, (1125 cat.le and 1000 buffloes) were examined under t.e aut.orit. of Albsat.ne and Alwaraq official abat.oirs in Cairo Governorat., Egypt.covering t.e period ext.nded from March 2022 t. April 2023. t.e overall prevalence of t.e disease among bovine was 7.8% (6.31% of cat.le and 9.5% of buffloes). Besides, B. aegypt.aca and M. oleifera ext.act. showed cyst.cidal act.vit. in experiment.lly infect.d mice. A decrease in t.e numbers of cyst.cerci was found in all t.eat.d mice groups, and up t. 88% reduct.on was achieved in t.e B. aegypt.aca-t.eat.d group;higher t.an t.at.was recorded in bot. M. oleifera (72.23%) and albendazole-t.eat.d ones (80.56%). Post.ort.m findings proved t.at.M. oleifera and B. aegypt.aca reduced cyst.cerci numbers comparable t. a commercial ant.elmint.c. t.e st.dy showed a significant.decrease (P 0.001) in t.F-α levels aft.r t.eat.ent.wit. Balanit.s and Moringa ext.act., compared wit. t.e unt.eat.d cont.ol and t.e albendazole-t.eat.d groups.

关键词： Prevalence Balanit.s aegypt.aca Moringa oleifera Mice t. saginat. Cyst.cerci