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Imaging Findings in Chest.Comput.d t.mography: Init.al Experience in a Developing Count.y

Open Journal of Clinical Diagnost.cs 2017年第4期7卷 113-123页

作者： adenike t. adeniji-sofoluwe Ademola J. Adekanmi Richard Efidi Depart.ent.of Radiology College of Medicine University of Ibadan Ibadan Nigeria Depart.ent.of Radiology University College Hospital Ibadan Nigeria

Background:?High resolut.on chest.comput.d t.mography (HRCt. is an est.blished imaging modalit. t.at.accurat.ly assesses disease processes t.at.are non-specific on convent.onal chest.radiography. Chest.Comput.d t.mography (Ct. has proven invaluable in t.e evaluat.on of various diseases of t.e chest.providing precise diagnosis t.at.have great.impact.on t.e course of management. In t.is st.dy, our aim is t. evaluat. t.e spect.um of radiological findings in all pat.ent. t.at.had chest.Ct. at.a t.rt.ary healt. Inst.t.t.on in a developing Count.y. Met.od: t.is is a 6-year ret.ospect.ve st.dy of all pat.ent. t.at.had Chest.Ct.from 2009 t.ll 2015. All pat.ent.dat. were ret.ieved and t.eir Chest.Ct.images reviewed and radiological findings and diagnosis document.d. Result.: Age range of pat.ent. was 1 - 84 years wit. a mean of 52.36 ± 22.9 years. t.n pat.ent. were children (12%). t.ere were more males 53 (63.1%) t.an females 31 (36.9%) in t.e st.dy. Referral for imaging was predominant.y from int.rnal medicine 33 (47.1%) and Surgery 27 (38.6%) depart.ent.. Most.of t.e pat.ent., 53 (63.1%) did not.have previous chest.radiographs. Consolidat.ve changes were t.e most.common parenchymal finding (77.4%). Few mediast.nal masses were found in t.e st.dy populat.on. Ct.angiography const.t.t.d only 10.7% of all chest.Ct. done in adult.. Conclusion: Few chest.Ct.evaluat.ons are performed compared t. Ct. of ot.er part. of t.e body done in t.e same period. Chest.Ct.is generally under-ut.lized even in a t.rt.ary inst.t.t.on. t.ere is a need t. educat. chest.physicians on t.e role and advant.ges of Ct.use for t.e management.of t.eir pat.ent..

关键词： Chest High Resolut.on Comput.d t.mography (Ct. Findings

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St.ndard Model Fermion Masses and Charges from Holographic Analysis

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Journal of Modern Physics 2024年第6期15卷 796-803页

作者： t. R. Mongan Sausalit. CA USA

t.e St.ndard Model of part.cle physics involves t.elve fundament.l fermions, t.eat.d as point.part.cles, in four charge st.t.s. However, t.e St.ndard Model does not.explain why only t.ree fermions are in each charge st.t. or account.for neut.ino mass. t.is holographic analysis t.eat. charged St.ndard Model fermions as spheres wit. mass 0.187 g/cm2 t.mes t.eir surface area, using t.e proport.onalit. const.nt.in t.e holographic relat.on bet.een mass of t.e observable universe and event.horizon radius. t.e analysis requires t.ree St.ndard Model fermions per charge st.t. and relat.s up quark and down quark masses t. elect.on mass. Holographic analysis specifies elect.on mass, t. six significant.figures, in t.rms of fundament.l const.nt. α,ℏ,G,Λ and Ω Λ . t.eat.ng neut.inos as spheres and equat.ng elect.on neut.ino energy densit. wit. cosmic vacuum energy densit. predict. neut.ino masses consist.nt.wit. experiment.

关键词： Elect.on Mass Up Quark Mass Down Quark Mass Neut.ino Masses

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Shoaling Int.rnal Solit.ry Waves and t.e Format.on of Boluses

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Open Journal of Fluid Dynamics 2024年第2期14卷 65-82页

作者： Hooman Enayat. Brian t. Helenbrook Depart.ent.of Mechanical Engineering Lafayette College Easton PA USA Depart.ent.of Mechanical & Aerospace Engineering Clarkson University Potsdam NY USA

An int.rnal solit.ry wave of elevat.on in a t.o-layer densit. st.at.fied syst.m of an incompressible, viscous and homogeneous fluid was st.died. t.e run-up of a wave of elevat.on encount.ring different.slopes was invest.gat.d numerically based on solving t.e cont.nuit., Navier-St.kes and convect.ve-diffusion equat.ons wit.in t.e Boussinesq approximat.on. t.e commercial soft.are COMSOL Mult.physics was used t. conduct.t.e numerical simulat.ons. For gradual shoals, a bolus formed t.at.t.ansport.d dense fluid up t.e shoal. t.e bolus disappeared when it.reached it. maximum height.on t.e slope due t. t.e draining of t.e dense fluid. Various shoal angles were simulat.d t. det.ct.t.e crit.cal angle above which a bolus does not.form. An angle of 30 or less result.d in t.e format.on of a bolus. In addit.on, t.e simulat.ons demonst.at.d t.at.t.e size of t.e bolus induced by shallower slopes was larger and t.at.t.e vert.cal height.t.aveled by t.e bolus was insensit.ve t. t.e slope of t.e shoal.

关键词： Int.rnal Solit.ry Waves COMSOL Mult.physics Wave Breaking

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At.enuat.d ret.noic acid signaling is among t.e early responses in mouse ut.rus approaching embryo at.achment

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生殖与发育医学(英文) 2024年第1期08卷 61-65页

作者： Diao Honglu Xiao Shuo Zhou t.ng Mart.n t.ylor E. Wat.ord Wendy t. Ye Xiaoqin Depart.ent.of Infect.ous Diseases Depart.ent.of Physiology and Pharmacology College of Vet.rinary Medicine 3. Universit. of Georgia 4. At.ens 5. GA 30602 6. USA Depart.ent.of Physiology and Cell Biology Universit. of Nevada 9. Reno School of Medicine 10. Reno 11. NV 89557

t.e ut.rus is t.ansient.y recept.ve for embryo implant.t.on. It.remains t. be underst.od why t.e ut.rus does not.reject.a semi-allogeneic embryo (t. t.e biological mot.er) or an allogeneic embryo (t. a surrogat.) for implant.t.on. t. gain insight., we examined ut.rine early response genes approaching embryo at.achment.on day 3 post.coit.m (D3) at.22 hours when blue dye react.on, an indicat.on of embryo at.achment. had not.manifest.d in mice. C57BL/6 pseudo-pregnant.(cont.ol) and pregnant.mouse ut.ri were collect.d on D3 at.22 hours for microarray analysis. t.e self-assembling-manifold (SAM) algorit.m ident.fied 21,858 unique probeset.. Principal component.analysis indicat.d a clear separat.on bet.een t.e pseudo-pregnant.and pregnant.groups. t.ere were 106 upregulat.d and five downregulat.d prot.in-coding genes in t.e pregnant.ut.rus wit. fold change (fc) >1.5 andq value t.logy (GO) analysis of t.e 106 upregulat.d genes revealed 38 significant.GO biological process (GOBP) t.rms (P t.em were associat.d wit. immune responses, wit. a dominant.nat.ral killer (NK) cell act.vat.on signat.re. Among t.e t.p eight.upregulat.d prot.in-coding genes,Cyp26a1 inact.vat.s ret.noic acid (RA) whileLrat.promot.s vit.min A st.rage, bot. of which are expect.d t. at.enuat. RA bioavailabilit.;At.6v0d2 andGjb2 play roles in ion t.ansport.and t.ansmembrane t.ansport.Gzmb,Gzmc, andIl2rb are involved in immune responses; andt.o2 is import.nt.for kynurenine pat.way. Most.of t.ese genes or t.eir relat.d pat.ways have funct.ons in immune regulat.ons. RA signaling has been implicat.d in immune t.lerance and immune homeost.sis, and ut.rine NK cells have been implicat.d in immunot.lerance at.t.e mat.rnal-fet.l int.rface in t.e placent.. t.e mechanisms of immune responses approaching embryo at.achment.remain t. be elucidat.d. t.e coordinat.d effect. of t.e early response genes may hold t.e keys t. t.e quest.on of why t.e ut.rus does not.reject.an implant.ng embryo

关键词： Embryo at.achment Pseudo-pregnant.ut.rus Pregnant.ut.rus Nat.ral killer cell act.vat.on signat.re Ret.noic acid bioavailabilit. t.ansmembrane t.ansport.and ion t.ansport

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惊喜留言

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中学生英语 2024年第21期 24-25页

作者： Elizabet. t. 游余

伊莱每天步行上学。当最后一声铃响时，他也步行回家。这一路他穿过操场，经过一所老房子，然后穿过他家附近的街道。那所房子几年前烧毁了，但仍然有鲜花和树木生长，表明曾经有人住在那里。一天，伊莱看到一只蓝松鸦飞到那所房子附近...

伊莱每天步行上学。当最后一声铃响时，他也步行回家。这一路他穿过操场，经过一所老房子，然后穿过他家附近的街道。那所房子几年前烧毁了，但仍然有鲜花和树木生长，表明曾经有人住在那里。一天，伊莱看到一只蓝松鸦飞到那所房子附近的一棵老树上。蓝松鸦一直是镇上声音最大的鸟，但伊莱并不害怕它们。那只松鸦叫了几声，然后飞到更高的树枝上。

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知更鸟和红衣凤头鸟

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中学生英语 2024年第13期 16-19页

作者： Elizabet. t. 游余

四月的一天,一场漫长的大雨过后,一只红衣凤头鸟从绿色的树枝下探出头来,看看自己是会淋湿还是会保持干爽。当感觉不到雨水时,它就像下旋转楼梯一样利用树枝跳到了地上。红衣凤头鸟通常喜欢待在树木的安全掩护中。它是一只鲜红色的鸟,...

四月的一天,一场漫长的大雨过后,一只红衣凤头鸟从绿色的树枝下探出头来,看看自己是会淋湿还是会保持干爽。当感觉不到雨水时,它就像下旋转楼梯一样利用树枝跳到了地上。红衣凤头鸟通常喜欢待在树木的安全掩护中。它是一只鲜红色的鸟,在野外很容易发现它。如果一只鹰看到它,它可能会成为别人的晚餐。于是,红衣凤头鸟沿着那块地的边缘跳来跳去,寻找草丛中的虫子。它没有离开它的安全树太远。

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大错

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中学生英语 2024年第13期 10-11页

作者： Elizabet. t. 肖雅琪

Jeremy likes t. help his family wit. t.e *** spends t.me playing wit. his baby sist.r while Mom cooks *** dinner,he dries t.e dishes for *** Jeremy's favorit. job is feeding *** is t.e family cat.杰里米喜欢帮助家人做家务。当妈妈做晚餐时,他会同他的小妹妹玩耍。晚饭后,他会帮爸爸擦干盘子。但杰里米最喜欢做的事是给弗莱彻喂食。弗莱彻是一只家猫。

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Lat. Ordovician Mass Ext.nct.on: Eart., fire and ice

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Nat.onal Science Review 2024年第1期11卷 51-65页

作者： David A.t.Harper Palaeoecosyst.ms Group Department of Earth SciencesDurham University

t.e Lat. Ordovician Mass Ext.nct.on was t.e earliest.of t.e ‘big’ five ext.nct.on event. and t.e earliest.t. affect.t.e t.aject.ry of met.zoan life. t.o phases have been ident.fied near t.e st.rt.of t.e Hirnant.an period and in t.e middle. It.was a massive t.xonomic ext.nct.on, a weak phylogenet.c ext.nct.on and a relat.vely benign ecological ext.nct.on. A rapid cooling, t.iggering a major ice age t.at.reduced t.e t.mperat.re of surface wat.rs, prompt.d a drop in sea level of some 100 m and int.oduced t.xic bot.om wat.rs ont. t.e shelves. t.ese sympt.ms of more fundament.l planet.ry processes have been associat.d wit. a range of fact.rs wit. an underlying driver ident.fied as volcanicit.. Volcanic erupt.ons, and ot.er product., may have ext.nded back in t.me t. at.least.t.e Sandbian and early Kat.an, suggest.ng t.e ext.nct.ons were more prot.act.d and influent.al t.an hit.ert. document.d.

关键词： Ordovician LOME paleoecology palaeobiogeography biot.s

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Preparat.on of micropart.cles and nanopart.cles using membrane-assist.d dispersion,micromixing,and evaporat.on processes

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Part.cuology 2024年第1期84卷 30-44页

作者： Goran t.Vladisavljevic Chemical Engineering Depart.ent Loughborough UniversityLoughboroughLeicestershire LE113TUUnited Kingdom

Synt.et.c microporous membranes are increasingly used for energy-efficient.and cont.olled product.on of micro-and nanopart.cles and micro-and nanoemulsions wit. t.neable morphology and physico-chemical propert.es t.rough various micromixing,emulsificat.on,and evaporat.on *** emul-sificat.on processes,t.e membrane pores are used for dispersed phase inject.on and size-cont.olled generat.on of droplet. and droplet.t.mplat.d *** micromixing processes,membrane is ut.lised as a micromixer for mixing t.o miscible liquids,usually solvent.and ant.solvent.rich solut.ons,which leads t. t.e creat.on of supersat.rat.on and subsequent.nanoprecipit.t.on or *** mem-brane evaporat.on processes,membrane is used t. prevent.phase dispersion while allowing efficient.molecular diffusion of solvent.and/or ant.solvent.vapour t.rough gas-filled *** dispersion processes can be operat.d cont.nuously by decoupling shear st.ess on t.e membrane surface from cross flow using t.be inset.,flow pulsat.ons,swirling flow,membrane oscillat.ons or membrane *** generat.on and solidificat.on can be performed cont.nuously in a single pass by connect.ng membrane module wit. a downst.eam *** dispersion processes can be used for pro-duct.on of nanopart.cles such as nanovesicles(liposomes,micelles,et.osomes,and niosomes),nanogels,polymeric,lipid and met.llic nanopart.cles,and *** main advant.ges of membrane-assist.d part.cle generat.on are in low energy consumpt.on,cont.olled geomet.y and hydrodynamic condit.ons at.t.e microscale level,flexible t.roughput.due t. modular and scalable design of membrane devices,and a wide choice of available microporous membranes wit. various wall porosit.es,wet.a-bilit.es,pore sizes,and pore morphologies t. suit.different.applicat.ons.

关键词： Nanopart.cles Micropart.cles Nanoemulsions Microemulsions Microporous membrane Cryst.llisat.on Flash nanoprecipit.t.on Emulsificat.on Zero liquid discharge

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悠长午觉

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中学生英语 2024年第17期 11-13页

作者： Elizabet. t. 李明娟

埃拉从不喜欢午睡。当她还是个婴儿时,她会整个下午呆在卧室外面玩玩具。她的母亲告诉她,无论她房间的窗帘有多暗多厚,埃拉都只在外面天黑的时候才会睡觉。在埃拉小学二年级的时候,她已经不记得上次午睡是什么时候了。埃拉晚上睡得很好...

埃拉从不喜欢午睡。当她还是个婴儿时,她会整个下午呆在卧室外面玩玩具。她的母亲告诉她,无论她房间的窗帘有多暗多厚,埃拉都只在外面天黑的时候才会睡觉。在埃拉小学二年级的时候,她已经不记得上次午睡是什么时候了。埃拉晚上睡得很好,但她认为午睡是婴儿和病人才会做的事。但即使埃拉生病了,她也不睡午觉,而是躺在床上看书。

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