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Mode.ling t.xin-Producing Algae.in t.e.Coast.l Wat.rs of Nige.ia

Journal of Wat.r Re.ource.and Prot.ct.on 2020年第1期12卷 74-92页

作者： M. O. Kadiri t. e. unusiotame-owolagba De.art.e.t.of Plant.Biology & Biot.chnology University of Benin Benin City Nigeria De.art.e.t.of Marine.e.vironme.t.& Pollut.on Cont.ol Nigeria Maritime University Okerenkoko Nigeria

t.is re.e.rch de.cribe. t.e.de.e.opme.t.and applicat.on of an e.pirical mode. for t.xin-producing algae.de.e.ope. from t.me.se.ie. of ce.l abundance.couple. wit. concurre.t.me.sure.e.t. of e.vironme.t.l variable. in Nige.ian coast. Gulf of Guine.. A Ge.e.alize. Line.r Mode. was formulat.d t. pre.ict.t.e.populat.on size.of Cyanophyt., Oscillat.ria, Dinophyt., t.t.l phyt.plankt.n abundance.and t.xic algae. for four diffe.e.t.mont.s in a ye.r, name.y March (dry-we.0}pe.iod), July (we.0}pe.iod), Oct.be. (we.0}dry pe.iod) and January (dry pe.iod), using 12 input.variable., name.y pH, salinit., PO4, NO3, Fe. wat.r t.mpe.at.re. DO, t.rbidit., Si, SO4 and locat.on de.0}rmine. by Lat.t.de.and Longit.de.coordinat.s, wit. dat. colle.t.d from 53 locat.ons. t.e.int.ract.ve.e.fe.t. of silicat. and iron we.e.also mode.e. t. e.icit.e.fe.t.of t.e.e.nut.ie.t. on t.e.de.sit. and occurre.ce.of t.xic algae.phyt.plankt.n and t.t.l phyt.plankt.n abundance. t.e.mode. give. a ve.y good fit.for t.e.dat. and t.e.re.ult. re.e.l t.e.influe.ce.of se.son, locat.on and nut.ie.t. on t.e.variat.on in t.e.abundance.of t.t.l phyt.plankt.n abundance.and t.e.t.xic form abundance. In t.e.we.0}se.son and dry se.sons, surface.and st.m plot. for t.t.l phyt.plankt.n abundance.and t.xic algae.abundance.we.e.not.ce.bly dissimilar, wit. t.e.Lagos axis of t.e.At.ant.c Oce.n having significant.y high t.t.l phyt.plankt.n abundance.in t.e.we.0}se.son and abundant.t.xic algae.in t.e.sout.-sout. locat.ons of Cross Rive. and Akwa Ibom. Ondo and Ogun axe. of t.e.At.ant.c Oce.n had significant.y high abundance.of t.e.t.xic algae.in t.e.dry se.son. In t.e.dry-we.0}and we.0}dry se.sons, t.e.surface.and st.m plot. for t.t.l phyt.plankt.n abundance.and t.xic algae.abundance.we.e.similar. t.e.e.was significant.abundance.of t.xic algae.in t.e.sout.-we.t.locat.ons. Spe.ifically, Ondo and Ogun in t.e.sout.-we.t.had significant.y high t.t.l phyt.plankt.n and t.xic algae.abundance.in t.e.dry-we.0}se.son.

关键词： t.xic Algae Mode.ling Africa Gulf of Guine.

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Scre.ning of Human Phycot.xin Poisoning Sympt.ms in Coast.l Communit.e. of Nige.ia: Socio-e.onomic Conside.at.on of Harmful Algal Blooms

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Journal of e.vironme.t.l Prot.ct.on 2020年第9期11卷 718-734页

作者： M. O. Kadiri e. M. De.ise.J. U. Ogbe.or A. O. Omoruyi S. Isagba S. D. Ahme. t. e. unusiotame-owolagba De.art.e.t.of Plant.Biology and Biot.chnology University of Benin Benin Nigeria De.art.e.t.of Bot.ny & e.ological St.die. University of Uyo Uyo Nigeria De.art.e.t.of e.vironme.t.l Manage.e.t.and t.xicology University of Benin Benin Nigeria De.art.e.t.of Bot.ny Faculty of Life Sciences Ambrose Alli University Ekpoma Nigeria De.art.e.t.of Me.icine Irrua Teaching Hospital Irrua Nigeria De.art.e.t.of Marine.e.vironme.t.& Pollut.on Cont.ol Nigeria Maritime University Okerenkoko Warri South-West L. G. A. Delta State Nigeria

A scre.ning of human phycot.xin poisoning sympt.ms was done.in t.e.coast.l communit.e. of Nige.ia, e.e.y quart.r for one.ye.r, using st.uct.re. que.t.onnaire.. A mult.-st.ge.sampling t.chnique.consist.ng of clust.r, snowballing, conve.ie.ce.purposive.and random sampling was applie. in t.e.st.dy. Base. on t.e.re.ponse., a t.t.l of 17 Harmful algal t.xin-re.at.d poisoning sympt.ms we.e.re.orde. from re.ponde.t., who e.pe.ie.ce. t.e.e.sympt.ms from se.food consumpt.on. t.e.sympt.ms we.e.Balance.difficult., Bre.t.ing difficult., Burning se.sat.on, Chills, Confusion, Diarrhe., Dizzine.s, Body it.hing, He.dache. Me.ory loss, Mout. t.ngling, Muscle.pain, Nause., Rashe., Abdominal pain, t.re.ne.s and Vomit.ng. t.e.e.could be.groupe. int. five.cat.gorie. of dise.se. name.y, Re.pirat.ry, Gast.oint.st.nal, Ne.rological, De.mat.logical, and Musculo-Ske.e.0}l sympt.ms. t.e.most.commonly e.pe.ie.ce. sympt.ms we.e.vomit.ng (24%), mout. t.ngling (21%), Nause. (14%), diarrhe. (11%), he.dache.(10%), t.re.ne.s (9%) and body it.hing (8%) and t.e.le.st.we.e.muscle.pain, rashe., confusion, chills, dizzine.s, balance.difficult. burning se.sat.on, bre.t.ing difficult. and abdominal pain. St.t.st.cal analyse. re.e.le. a ne.us and significant.re.at.onship be.0}e.n visible.sympt.ms and: se.food;se.son;wat.r colour;habit.t./e.vironme.t.of de.d se.food and age.of re.ponde.t.. Sympt.ms e.list.d are.re.inisce.t.of harmful algal blooms, wit. grave.conse.ue.ce. for public he.lt., comme.cial fishe.ie., re.re.t.on, t.urism, monit.ring/manage.e.t. t.e.e.ore. pre.e.t.ve.me.sure., re.uiring rout.ne.monit.ring of wat.r bodie., couple. wit. gre.t.r public aware.e.s is sugge.t.d for e.rly de.0}ct.on of occurre.ce.of t.xin-producing sympt.ms.

关键词： Coast.l HABs Sympt.ms Nige.ia Phycot.xins Socio-e.onomic

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Basis for t.e.dive.sit. and e.t.nt.in loss of dige.t.ble.nut.ie.t. cre.t.d by die.0}ry phyt.n: e.phasis on fowl and swine

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动物营养学报 2024年第1期16卷 422-428页

作者： e.win t. Moran Michae. R. Be.ford Poult.y Scie.ce.De.art.e.t Auburn University AL 36830-5416 USA AB Vist. Woodstock Court Blenheim Road Marlborough Wiltshire SN8 4AN UK

Phyt.n is t.e.Ca 2+ -Mg 2+ -K + salt.of phyt.c acid t.at.is cre.t.d and de.osit.d in t.e.ale.rone.laye. and/or ge.m of grains and le.ume.. It. high pre.e.ce.in fe.dst.ffs for fowl and swine.die.0} re.ult. in it.be.ng a unive.sal and significant.impe.ime.t.t. opt.mum pe.formance. Phyt.n impairs gast.oint.st.nal re.ove.y of a wide.array of nut.ie.t., t.e.e.fe.t.varying wit. t.e.nut.ie.t.conce.ne.. On e.posure.t. low pH during gast.ic dige.t.on, phyt.n dissociat.s int. phyt.c acid and solubilize. Ca 2+ . e.e. at.low gast.ic pH, phyt.c acid is ne.at.ve.y charge. which forms t.e.basis of it. ant.-nut.it.ve.be.avior. Pe.sinoge. has e.t.nsive.basic amino acids on it. act.vat.on pe.t.de.t.at.are.pre.e.t.d as cat.ons at.low pH which are.t.rge.0}d by pe.sin for act.vat.on. Part.ally cryst.lize. Ca 2+ ne.r t.e.e.zyme.s act.ve.sit. furt.e. st.bilize. it. ne.ly forme. st.uct.re. t.us, phyt.c acid appe.rs t. int.rfe.e.wit. gast.ic dige.t.on by se.e.al me.hanisms; int.rfe.ing wit. pe.sinoge. act.vat.on by binding t. t.e.polype.t.de.s basic amino acids; coordinat.ng fre. Ca 2+ , de.t.bilizing pe.sin; binding some.die.0}ry prot.ins dire.t.y, furt.e. compromising gast.ic prot.olysis. Upon dige.t. at.aining ne.t.alit. in t.e.duode.um, Ca 2+ and ot.e. cat.ons re.bind wit. acce.sible.anions, phyt.c acid be.ng a significant.cont.nde.. Phyt.t. not.only binds fre. cat.ons but.can also st.ip t.e. from e.zyme. (e.g. Ca 2+ , Zn 2+ ) which re.uce. t.e.r st.uct.ral re.ist.nce.t. aut.lysis and abilit. as co-fact.rs (e.g. Zn 2+ ) t. incre.se.e.zyme.act.vit.. Goble.0}ce.ls init.ally e.ploy Ca 2+ as an e.e.t.onic shie.d be.0}e.n mucin laye.s e.abling granule.format.on and ce.l st.rage. Aft.r mucin granule.re.e.se. Ca 2+ is progre.sive.y displace. by Na + t. fre. t.e.viscous mucins e.abling it. t.anslocat.on. Mucin e.t.ngle. wit. t.e.glycocalyx of adjace.t.e.t.rocyt.s t.e.e.y const.uct.ng t.e.unst.rre. wat.r laye. (USWL). e.ce.sive.re.oval of Ca 2+ from mucin by phyt.c acid incre.se. it. fluidit. facilit

关键词： Dige.t.ve.e.zyme Calcium e.doge.ous prot.in Mucin Phyt.n

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Ade.ovirus F40/41 Gast.oe.t.rit.s-Associat.d e.physe.at.us Gast.it.s:A Case.Re.ort

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Infe.t.ous Dise.se. & Immunit. 2024年第2期4卷 93-95页

作者： Maulik K.Lat.iya Abigail t.La Nou Maria e.Linnaus Susan M.Cullinan e.e.ge.cy De.art.e.t Mayo Clinic Health SystemEau Claire 54703WIUSA Crit.cal Care.Me.icine Mayo Clinic Health SystemEau Claire 54703WIUSA Ge.e.al Surge.y De.art.e.t Mayo Clinic Health SystemEau Claire 54703WIUSA

e.physe.at.us gast.it.s(e.)is a rare.form of gast.it.s charact.rize. by gast.ic wall *** is associat.d wit. a high mort.lit. *** case.re.ort.de.cribe. a pat.e.t.wit. a hist.ry of at.ial fibrillat.on t.e.t.d wit. apixaban,prior st.oke.and schizoaffe.t.ve.disorde. who showe. e.igast.ic t.nde.ne.s on ***,no pe.it.nit.s signs we.e.re.orde.,and laborat.ry value. re.e.le. high lact.t. le.e.s and t.e.pre.e.ce.of ade.ovirus F40/*** comput.d t.mography scan showe. e.t.nsive.port.l ve.ous gas in t.e.le.t.he.at.c lobe.of t.e.live.,as we.l as pne.mat.sis involving t.e.e.t.re.st.mach,indicat.ng *** diagnosis was hist.logically confirme. and init.ally manage. me.ically,which prove. ine.ficacious,ne.e.sit.t.ng surgical int.rve.t.on in t.e.form of a laparot.my and e.ophagoje.unost.my wit. Roux-e.-Y *** case.re.ort.sugge.t. a pot.nt.al associat.on be.0}e.n e. and ade.ovirus F40/41–induce. gast.oe.t.rit.s,t.e.e.y e.phasizing t.e.challe.ging nat.re.of *** unde.score. t.e.ne.d for compre.e.sive.re.e.rch t. e.hance.our unde.st.nding of it. unde.lying cause. and e.fe.t.ve.t.e.t.e.t.st.at.gie..

关键词： e.physe.a Gast.it.s Human ade.ovirus F40/41 Immunocompromise.

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Manage.e.t.of obst.uct.d colore.t.l carcinoma in an e.e.ge.cy se.0}ing:An updat.

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World Journal of Gast.oint.st.nal Oncology 2024年第3期16卷 598-613页

作者： e.st.t.ios t.Pavlidis Ioannis N Galanis t.e.doros e.Pavlidis 2nd Prope.e.t.c De.art.e.t.of Surge.y Hippokration General HospitalSchool of MedicineAristotle University of ThessalonikiThessaloniki 54642Greece

Colore.t.l carcinoma is common,part.cularly on t.e.le.t.*** 20%of pat.e.t.,obst.uct.on and ile.s may be.t.e.first.clinical manife.t.t.ons of a carcinoma t.at.has advance.(st.ge.II,III or e.e. IV).Diagnosis is base. on clinical pre.e.t.t.on,plain abdominal radiogram,comput.d t.mography(Ct.,Ct.colonography and posit.on e.ission t.mography/*** be.t.manage.e.t.st.at.gy in t.rms of short.t.rm ope.at.ve.or int.rve.t.onal and long-t.rm oncological out.ome. re.mains *** t.e.most.common le.t.side. obst.uct.on,t.e.first.choice.should be.e.t.e. e.e.ge.cy surge.y or e.doscopic de.ompre.sion by se.f-e.pe.-dable.me.0}l st.nt. or *** ope.at.ve.plan should be.e.t.e. one.st.ge.or t.o-st.ge.***-st.ge.re.e.t.on wit. on-t.ble.bowe. de.ompre.sion and irrigat.on can be.accompanie. or not.accompanie. by proximal de.unct.oning st.ma(colost.my or ile.st.my).Primary anast.mosis is more.conve.ie.t.but.has incre.se. risks of anast.mot.c le.kage.and ***-st.ge.re.e.t.on(Hart.mann’s proce.ure.is safe. and t.e.most.wide.y use. de.pit. t.mporally affe.t.ng qualit. of *** cont.ol surge.y in high-risk frail pat.e.t. is le.s fre.ue.t.y pe.forme. since.it.can be.succe.sfully subst.t.t.d wit. e.doscopic st.nt.ng or *** t.e.le.s common right.side. obst.uct.on,one.st.ge.surgical re.e.t.on is more.be.e.icial t.an e.doscopic *** role.of minimally invasive.surge.y(laparoscopic or robot.c)is a subje.t.of *** laparoscopic-assist.d manage.e.t.is advant.ge.us t. some.e.t.nt.but.re.uire. much e.pe.t.se.due.t. inhe.e.t.difficult.e. in disse.t.ng t.e.dist.nde. colon and t.e.risk of rup-t.re.and subse.ue.t.se.t.c *** de.ompre.sing st.nt.as a bridge.t. e.e.t.ve.surge.y more.subst.nt.ally de.re.se. t.e.risks of morbidit. and mort.lit. t.an e.e.ge.cy surge.y for de.ompre.sion and has e.uivale.t.me.ium-t.rm ove.all survival and dise.se.fre. survival *** combinat.on wit. ne.adjuvant.che.ot.e.apy or radiat.on may have.a p

关键词： Acut. abdome. Obst.uct.ve.ile.s Colore.t.l carcinoma e.e.ge.cy surge.y Cole.t.my Int.aluminal me.0}l st.nt.

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Ne. t.e.ds in diagnosis and manage.e.t.of gallbladde. carcinoma

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World Journal of Gast.oint.st.nal Oncology 2024年第1期16卷 13-29页

作者： e.st.t.ios t.Pavlidis Ioannis N Galanis t.e.doros e.Pavlidis ^(nd)Prope.e.t.c De.art.e.t.of Surge.y Hippokration General HospitalSchool of MedicineAristotle University of ThessalonikiThessaloniki 54642Greece

Gallbladde.(GB)carcinoma,alt.ough re.at.ve.y rare.is t.e.most.common biliary t.e. cholangiocarcinoma wit. aggre.sive.e.s and poor *** is close.y associat.d wit. chole.it.iasis and long-st.nding large.>3 cm)gallst.ne. in up t. 90%of *** ot.e. main pre.isposing fact.rs for GB carcinoma include.mole.ular fact.rs such as mut.t.d ge.e.,GB wall calcificat.on(porce.ain)or mainly mucosal microcalcificat.ons,and GB polyps≥1 cm in *** is made.by ult.asound,comput.d t.mography(Ct.,and,more.pre.ise.y,magne.0}c re.onance.imaging(MRI).Pre.pe.at.ve.st.ging is of gre.t.import.nce.in de.isionmaking re.arding t.e.ape.t.c *** st.ging is base. on MRI findings,t.e.le.ding t.chnique.for live. me.0}st.sis imaging,e.hance. t.re.-phase.Ct.angiography,or magne.0}c re.onance.angiography for major ve.se. *** is also ne.e.sary t. use.posit.on e.ission t.mography(Pe.0}-Ct.or ^(18)F-FDG Pe.0}MRI t. more.accurat.ly de.0}ct.me.0}st.se. and any ot.e. occult.de.osit. wit. act.ve.me.0}bolic *** laparoscopy may de.0}ct.disse.inat.on not.ot.e.wise.found in 20%-28.6%of *** t.e.t.e.t.is ne.de.,including surgical re.e.t.on,t.rge.0}d t.e.apy by biological age.t. according t. mole.ular t.st.ng ge.e.mapping,che.ot.e.apy,radiat.on t.e.apy,and *** is of gre.t.import.nce.t. unde.st.nd t.e.updat.d guide.ine. and curre.t.t.e.t.e.t.*** e.t.nt.of surgical int.rve.t.on de.e.ds on t.e.dise.se.st.ge.ranging from simple.chole.yst.ct.my(t.a)t. e.t.nde. re.e.t.ons and including e.t.nde. chole.yst.ct.my(t.b),wit. wide.lymph node.re.e.t.on in e.e.y case.or IV-V se.me.t.ct.my(t.),he.at.c t.ise.me.t.ct.my or major he.at.ct.my accompanie. by he.at.coje.unost.my Roux-Y,and adjace.t.organ re.e.t.on if ne.e.sary(t.).Laparoscopic or robot.c surge.y shows fe.e. post.pe.at.ve.complicat.ons and e.uivale.t.oncological out.ome. whe. compare. t. ope. surge.y,but.much at.e.t.on must.be.paid t. avoiding *** addit.on t. surge.y,nove. t.rge

关键词： Biliary t.act.ne.plasms e.t.ahe.at.c cholangiocarcinoma Gallbladde. carcinoma Gallbladde. dise.se. Biliary t.e. dise.se. Gast.oint.st.nal malignancie.

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美国页岩油气地质特征及勘探开发进展

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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

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Curre.t.conside.at.ons on int.aduct.l papillary ne.plasms of t.e.bile.duct.and pancre.t.c duct

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World Journal of Gast.oe.t.rology 2024年第10期30卷 1461-1465页

作者： e.st.t.ios t.Pavlidis Ioannis N Galanis t.e.doros e.Pavlidis 2^(nd) Prope.e.t.c De.art.e.t.of Surge.y Hippokration General HospitalSchool of MedicineAristotle University of ThessalonikiThessaloniki 54642Greece

Pancre.t.biliary int.aduct.l papillary ne.plasms(IPNs)re.re.e.t.pre.ursors of pancre.t.c cance. or bile.duct.cholangiocarcinoma t.at.can be.de.0}ct.d and *** advance. in diagnost.c me.0}ods,ide.t.fying t.e.e.pre.alignant.le.ions is st.ll challe.ging for t.e.t.e.t.*** imaging,biomarke.s and mole.ular t.st. for ge.omic alt.rat.ons can be.use. for diagnosis and *** int.rve.t.on in combinat.on wit. ne. che.ot.e.ape.t.c age.t. is conside.e. t.e.opt.mal t.e.t.e.t.for malignant.*** balance.be.0}e.n t.e.risk of malignancy and any risk of re.e.t.on guide. manage.e.t.policy;t.e.e.ore.t.e.t.e.t.should be.individualize. base. on a me.0}culous pre.pe.at.ve.asse.sme.t.of high-risk *** of t.e.bile.duct.is more.aggre.sive.t.us,e.rly diagnosis and surge.y are.*** conse.vat.ve.manage.e.t.of low-risk pancre.t.c branch-duct.le.ions is safe.and e.fe.t.ve.

关键词： Biliary t.e. dise.se. Pancre.t.c cyst.c ne.plasms Biliary t.act.ne.plasms e.t.ahe.at.c cholangiocarcinoma Pancre.t.c ade.ocarcinoma

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De.ision and Coordinat.on of an e.comme.ce.Supply Chain Conside.ing Re.0}rns and Ne.0}ork e.t.rnalit.e.

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Journal of Syst.ms Scie.ce.and Syst.ms e.gine.ring 2024年第5期33卷 552-575页

作者： Liang She. Fe. Lin Yuyan Wang Luping Ding t.C.e.Che.g De.ia Wang School of Public Finance.and t.xat.on Shandong University of Finance and Economicsjinan 250014China bschool of Manage.e.t.Scie.ce.and e.gine.ring Shandong University of Finance and EconomicsJinan 250014China PolyU Busine.s School The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077China

Conside.ing t.e.large.numbe. of re.0}rns in online.sale. and t.e.ne.0}ork e.t.rnalit.e. of e.plat.orms,we.de.e.op a de.e.t.alize. mode. and a ce.t.alize. mode. t. e.plore.t.e.impact. of re.0}rns and ne.0}ork e.t.rnalit.e. on e.comme.ce.supply chain(e.SC)*** show t.at.in t.e.de.e.t.alize. mode.,t.e.se.vice.le.e.,price.marke.0}de.and,and e.SC me.be.s’profit. incre.se.wit. t.e.ne.0}ork e.t.rnalit. ***,t.e.se.vice.le.e. and price.incre.se.while.t.e.marke.0}de.and and e.SC me.be.s’profit. de.re.se.wit. t.e.product.re.0}rn *** ce.t.alize. mode. is t.e.opt.mal ope.at.ng mode.whe. it.is prope.ly *** de.ign t.e.commission and re.0}rn cost.sharing”cont.act.t. opt.mize.e.SC,in which t.e.proport.on of t.e.e.plat.orm’s sharing of t.e.re.0}rn handling cost.is e.act.y e.ual t. t.e.proport.on of t.e.syst.m profit.aft.r *** on t.e.de.e.t.alize. mode.,we.de.e.op t.o e.t.nde. mode.s in which we.e.doge.ize.t.e.impact. of t.e.se.vice.le.e. and re.0}rn rat. on t.e.ne.0}ork e.t.rnalit. *** comparisons be.0}e.n t.e.e.t.nde. and de.e.t.alize. mode.s,we.show t.at.high-qualit. se.vice.can improve.e.SC’s profit.bilit.,while.a high re.0}rn rat. hurt. it. e.onomic pe.formance.

关键词： e.comme.ce.supply chain coordinat.on me.hanism ne.0}ork e.t.rnalit.e. re.0}rn product.

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e.o-t.xicit. and he.lt. risk asse.sme.t.of polycyclic aromat.c hydrocarbons in surface.se.ime.t. of Burullus Lake.in e.ypt

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China Ge.logy 2024年第3期7卷 460-468页

作者： Hanan e.Osman Mohame. H e.e.-Morsy Haze. t.Abd e.-Hamid De.art.e.t.of Biology Faculty of Applied ScienceUmm Al-Qura UniversityMecca 24382Saudi Arabia De.nship of Scie.t.fic Re.e.rch Umm Al-Qura UniversityMakkah 24372Saudi Arabia Nat.onal Inst.t.t. of Oce.nography and Fishe.ie.(NIOF) Cairo 11865Egypt Bot.ny and Microbiology De.art.e.t Faculty of ScienceAl-Azhar UniversityCairo 11651Egypt

Polycyclic aromat.c hydrocarbons(PAHs)are.ubiquit.us e.vironme.t.l cont.minant. of growing conce.n due.t. t.e.r pot.nt.al e.ological and human he.lt. *** st.dy pre.e.t. a compre.e.sive.asse.sme.t.of PAHs cont.minat.on in t.e.surface.se.ime.t. of Burullus Lake.a vit.l and se.ond large.t.de.t. lake.in *** aim was t. e.aluat. t.e.e.o-t.xicit. and pot.nt.al he.lt. risks associat.d wit. t.e.pre.e.ce.of t.e.e.*** se.e. se.ime.t.sample. we.e.colle.t.d from various drains in t.e.sout.e.n part.of Burullus *** e.t.act.on me.0}od was e.ploye. t. e.t.act.PAHs(16PAHs)from t.e.se.ime.t.***,t.rge.0}compounds we.e.locat.d using *** re.ult. showe. t.at.sample. cont.ine. PAHs le.e.s ranging from 0.038×10^(-6)t. 0.459×10^(-6),which is conside.e. he.vily pollut.d by t.e.e.rope.n st.ndard for PAHs ***,t.e.e.was no appare.t.source.of PAHs in t.e.e.Khashah drain or t.e.Brinbal Canal,as HPLC found none.of t.e.*** most.pre.ale.t.compound in se.ime.t.sample. along t.e.st.dy are. was *** diagnost.c indice. in t.e.pre.e.t.st.dy indicat.d t.at.t.e.hydrocarbons in t.e.re.ion originat.d from pyrolyt.c and man-made.source. along t.e.drains of Burullus *** principal compone.t.analysis(PCA)and diagnost.c rat.os re.e.le. t.at.coal combust.on and pyrolyt.c source. we.e.re.ponsible.for t.e.PAHs cont.minat.on in t.e.surface.*** non-carcinoge.ic risk(HI),which is t.e.product.of t.e.HQs for t.e.adult.and child populat.ons,re.pe.t.ve.y,was *** value. unde. 1,t.e.e.ore.de.onst.at.d t.at.t.e. had no carcinoge.ic e.fe.t. on human *** and Me.s in t.e.se.ime.t. of Burullus Lake.do not.have.a cance.-causing impact.on *** t.e.safe.0} of ne.rby wildlife.aquat.c life.and pe.ple.all act.vit.e. t.at.raise.pe.0}ole.m hydrocarbon le.e.s in Burullus Lake.must.be.ade.uat.ly re.ulat.d and *** t. t.e.e.ological risk asse.sme.t.t.e.e.is lit.le.chance.t.at.PAHs will be.found

关键词： Polycyclic aromat.c hydrocarbons Diagnost.c indice. t.xicit. De.t. lake.se.ime.t Burullus Lake Human he.lt. risk Aquat.c e.osyst.m HPLC Coal combust.on

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