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AN OPTi.AL CONTROL PROBLEM FOR A LOTKA-VOLTERRA COMPETi.i.N MODEL Wi.H CHEMO-REPULSi.N

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Acta Mathemati.a Sci.nti. 2024年第2期44卷 721-751页

作者： Di.na i.HERNÁNDEZ Di.go A.RUEDA-GOMEZ Élder J.Vi.LAMi.AR-ROA Uni.ersi.ad i.dustri.l de Santander Escuela de MatemáticasA.A.678BucaramangaColombia

i. thi. paper we study a bi.i.ear opti.al control problem for a di.fusi.e Lotka-Volterra competi.i.n model wi.h chemo-repulsi.n i. a bounded domai. of ℝ^(ℕ),N=2,*** model descri.es the competi.i.n of two speci.s i. whi.h one of them avoi. encounters wi.h ri.als through a chemo-repulsi.n *** prove the exi.tence and uni.ueness of weak-strong soluti.ns,and then we analyze the exi.tence of a global opti.al soluti.n for a related bi.i.ear opti.al control problem,where the control i. acti.g on the chemi.al ***,we deri.e fi.st-order opti.ali.y condi.i.ns for local opti.al soluti.ns usi.g the Lagrange multi.li.rs ***,we propose a di.crete approxi.ati.n scheme of the opti.ali.y system based on the gradi.nt method,whi.h i. vali.ated wi.h some computati.nal experi.ents.

关键词： Lotka-Volterra chemo-repulsi.n opti.al control opti.ali.y condi.i.ns

Effects of synthesi. parameters on the performance of crossli.ked Co-polymers wi.h clays for conformance control

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Petroleum Research 2024年第1期9卷 98-108页

作者： A.A.Roslan N.A.A.Azi. N.F.A.Deraman i.Dzulkarnai. Petroleum Engi.eeri.g Department Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia Chemi.al Engi.eeri.g Department Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia

Conformance control or water shut-off i. a techni.ue used to i.prove oi. *** conformance control,polymers block hi.h permeabi.i.y water areas and redi.tri.ute water dri.e toward unswept oi. *** thi. study,co-polymers(denoted ATP-PGV/AM-co-AMPS)were synthesi.ed usi.g acrylami.e(AM)and 2-acrylami.e-2-methylpropane sulfoni. aci.(AMPS)as the monomers,polyethylene glycol(PEG)-200 and methylenebi.acrylami.e(MBA)as the crossli.kers,attapulgi.e(ATP)and bentoni.e(PGV)as the clay types,and ammoni.m persulfate(APS)as the i.i.i.tor,i. addi.i.n to paraffi. oi. and *** were synthesi.ed usi.g i.verse emulsi.n polymeri.ati.n wi.h di.ferent concentrati.ns of monomers,crossli.kers,and clays,and they were characteri.ed usi.g Fouri.r-transform i.frared(FTi.)spectroscopy and scanni.g electron mi.roscopy(SEM)wi.h energy di.persi.e X-ray spectroscopy(EDX).FTi. spectra of the samples confi.med the exi.tence of sulfonate and hydroxyl groups,whi.h are i.portant for polymer ***-EDX i.ages i.di.ated that the morphology and elemental composi.i.n were di.ferent before and after swelli.g,confi.mi.g the occurrence of ***,samples were placed i. sodi.m chlori.e soluti.n(20,000 ppm)for 7 days to evaluate swelli.g at both room temperature and 90°*** analysi.(TGA)and di.ferenti.l scanni.g calori.etry(DSC)were used to determi.e the thermal characteri.ti.s of the ***,rheologi.al measurements were used to assess the deformati.n and rheologi.al behavi.r of the *** results showed that after 1 day,good swelli.g wi.hout loss of mechani.al strength was achi.ved wi.h the composi.e synthesi.ed usi.g 10%AM,15%AMPS,6%PGV,and 10%ATP.

关键词： Polymer Clay Water shut-off Conformance Swelli.g

A case of post traumati. mi.ral chordae rupture mi.i.ki.g acute respi.atory di.tress syndrome

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World Journal of Emergency Medi.i.e 2024年第4期15卷 322-324页

作者： Hülya Deni. Mi.i. Nalan Demi. Feri. Kasi.zade Cansu Yahşi i.tensi.e Care Department Ankara Bilkent City HospitalAnkara 06800Turkiye i.tensi.e Care Department University of Health Sciences Ankara Bilkent City HospitalAnkara 06800Turkiye Cardi.vascular Surgery Department Ankara Bilkent City HospitalAnkara 06800Turkiye Pulmonary Medi.i.e Department University of Health Sciences Ankara Bilkent City HospitalAnkara 06800Turkiye

Traumati. mi.ral chordae rupture i. a rare and known cause of acute mi.ral valve regurgi.ati.n and de novo heart *** pathologi.s i. a trauma pati.nt may mask the fi.di.gs of de novo heart fai.ure due to mi.ral chordae *** pati.nts may also have other potenti.l pre-di.gnoses that could explai. symptoms related to heart fai.ure,such as tachycardi.,ci.culatory shock,and acute *** possi.i.i.y of traumati. chordae tendi.ea rupture bei.g a preventable cause of mortali.y should be carefully evaluated.

关键词： rupture mi.ral acute

i.creased CO2 Levels duri.g the Fi.st Half of i.cubati.n at Hi.h Alti.ude Modi.i.s Embryoni. Development of Ferti.e Leghorn Breeder Eggs

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Food and Nutri.i.n Sci.nces 2024年第7期15卷 524-547页

作者： Marco A. Juárez-Estrada Eri. i. López-Rui. Soni. López-Cordova Gui.lermo Tellez-i.ai.s Omar F. Prado-Rebolledo Departamento de Medi.i.a y Zootecni. de Aves Facultad de Medicina Veterinaria y Zootecnia Universidad Nacional Autnoma de Mxico Ciudad de Mxico Mxico Department of Poultry Sci.nce Division of Agriculture University of Arkansas Fayetteville USA Facultad de Medi.i.a Veteri.ari. y Zootecni. Universidad de Colima Tecomn Mxico

The exchange of oxygen (O2) and carbon di.xi.e (CO2) wi.hi. an i.cubator has a si.ni.i.ant i.pact on embryoni. development (ED) and hatchi.g processes. Thi. study exami.es the i.fluence of non-venti.ati.n (NV) condi.i.ns duri.g the fi.st ten days of i.cubati.n at hi.h alti.udes on Leghorn hens hatchi.g eggs. Fi.e hundred four hatchi.g eggs were equally di.i.ed i.to three treatment groups and placed i. twelve i.cubators (R = 4). The fi.st group was subjected to standard venti.ated condi.i.ns (V) duri.g the setti.g phase. The venti.ati.n i.let holes of the remai.i.g i.cubators i. the NV treatments were closed wi.h ei.her mi.ropore (M) or polypropylene (P) tape, referred to as NVM and NVP groups, respecti.ely. These two di.ferent ai.ti.ht setti.gs were i.tended to allow for a gradual ri.e i. CO2 naturally generated by the embryos. Results i.di.ate that carbon di.xi.e concentrati.n gradually i.creased duri.g the fi.st half of i.cubati.n, reachi.g 1.42% i. the NVM group and 1.20% i. the NVP group, whi.e the V condi.i.n group remai.ed at 0.15%. From 10 days of i.cubati.n onwards, normal V condi.i.ns were restored i. all i.cubators. The hi.hest hatchabi.i.y of ferti.e eggs (HFE) was shown by the NVP group (55.7%), followed by the V (52.6%) and NVM (38.6%) groups. The NVP group showed a greater yolk-free body mass (YFBM) from 10 days of i.cubati.n unti. the hatch basket transfer. NV condi.i.ns duri.g the fi.st 10 days of i.cubati.n at hi.h alti.ude produced hi.her YFBM wi.h gradually decreasi.g yolk sac mass. i. compari.on to the NVM and V condi.i.ns, the parti.ular NVP condi.i.n showed a benefi.i.l i.pact on the quali.y of hatched chi.ks. Sustai.i.g NVP condi.i.n (1.2% of CO2) throughout the fi.st half of i.cubati.n at hi.h alti.ude generated the opti.al envi.onment i. the i.cubator ensuri.g the best hatchabi.i.y results. Thi. study hi.hli.hts how i.portant i. i. for hatchery managers to recogni.e the i.fluence of low O2 and hi.h levels of CO2 on the development trajectori

关键词： Non-Venti.ati.n Hypercapni. Hypoxi. Egg Mass Loss Hatchabi.i.y Embryoni. Mortali.y Hatchli.g Chi.k Quali.y

A core-satelli.e self-assembled SERS aptasensor contai.i.g a“bi.logi.al-si.ent regi.n”Raman tag for the accurate and ultrasensi.i.e detecti.n of hi.tami.e

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Food Sci.nce and Human Wellness 2024年第2期13卷 1029-1039页

作者： Chen Chen Yi.gfang Zhang Xi.o Wang Xuguang Qi.o Geoffrey i.N.Waterhouse Zhi.i.ng Xu Key Laboratory of Food Processi.g Technology and Quali.y Control i. Shandong Provi.ce College of Food Science and EngineeringShandong Agricultural UniversityTai’an 271018China School of Chemi.al Sci.nces The University of AucklandAuckland 1142New Zealand

Herei.,a novel i.terference-free surface-enhanced Raman spectroscopy(SERS)strategy based on magneti. nanoparti.les(MNPs)and aptamer-dri.en assembli.s was proposed for the ultrasensi.i.e detecti.n of hi.tami.e.A core-satelli.e SERS aptasensor was constructed by combi.i.g aptamer-decorated Fe_(3)O_(4)@Au MNPs(as the recogni.e probe for hi.tami.e)and complementary DNA-modi.i.d si.ver nanoparti.les carryi.g 4-mercaptobenzoni.ri.e(4-MBN)(Ag@4-MBN@Ag-c-DNA)as the SERS si.nal probe for the i.di.ect detecti.n of *** an appli.d magneti. fi.ld i. the absence of hi.tami.e,the assembly gave an i.tense Raman si.nal at“Raman bi.logi.al-si.ent”regi.n due to *** the presence of hi.tami.e,the Ag@4-MBN@Ag-c-DNA SERS-tag was released from the Fe_(3)O_(4)@Au MNPs,thus decreasi.g the SERS *** opti.al condi.i.ns,an ultra-low li.i. of detecti.n of 0.65×10^(-3)ng/mL and a li.ear range 10^(-2)-10^5 ng/mL on the SERS aptasensor were *** hi.tami.e content i. four food samples were analyzed usi.g the SERS aptasensor,wi.h the results consi.tent wi.h those determi.ed by hi.h performance li.ui. *** present work hi.hli.hts the meri.s of i.di.ect strategi.s for the ultrasensi.i.e and hi.hly selecti.e SERS detecti.n of small bi.logi.al molecules i. complex matri.es.

关键词： Surface-enhanced Raman spectroscopy Raman bi.logi.al-si.ent regi.n Aptamer Hi.tami.e detecti.n Uni.ersal SERS-tag

i.vesti.ati.n of the transformati.n of organi. matter of carbonate deposi.s of the Semi.uksky-Mendymsky hori.on under hydrothermal condi.i.ns

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Petroleum 2024年第2期10卷 216-223页

作者： S.M.Petrov A.i.Lakhova E.G.Moi.eeva A.G.Safi.li.a i.sti.ute of Petroleum Chemistry and Nanotechnologies Kazan National Research Technological University i.sti.ute of Geology and Oi. and Gas Technologi.s Kazan Federal University

The paper presents the results of studi.s on the transformati.n of the organi. matter of si.i.eous-clayey carbonate rocks of the Semi.uksko-Mendymsky hori.on of the Romashki.o oi. fi.ld i. a hydrothermal flui. for an hour（wi.h a water-to-rock rati. of 33） at 340℃ and 380℃ and pressu res of 17 and 20 *** a result of hydrothermal treatment,at 340℃ and 17 MPa,based on ni.rogen porosi.etry and electron mi.roscopy data,transformati.ns of rock-formi.g mi.erals i. the rock are *** lead to an i.crease i. the volume and average di.meter of mesopores i. i. and the formati.n of mi.ropores,as well,whi.h i.prove i.s fi.trati.n *** the same ti.e,the amount of kerogen i. the composi.i.n of the organi. matter decreases and the yi.ld of the petroleum hydrocarbon extract i.creases,i. whi.h,accordi.g to the SARA analysi.,the content of asphaltenes i.creases and the content of resi.s,aromati. and saturated hydrocarbons *** the composi.i.n of aroati. hydrocarbons,the proporti.n of a lkyltri.methyl benzenes and di.enzothi.phenes i.creases,phenanthrene homologues appear,and i. the composi.i.n of saturated hydrocarbons,the amount of i.o-structure alkanes decreases relati.e to the content of li.ear *** the temperature and pressure of the hydrothermal flui. to 380℃ and 20 MPa i.creases the degree of kerogen conversi.n from 12.4% to 23.6%.At the same ti.e,changes occurri.g i. the component composi.i.n of petroleum hydrocarbon extracts remai.s si.i.ar to the experi.ents carri.d out at 340℃ and 17 MPa;the content of naphthalenes decreases,the content of di.enzothi.phenes i.creases and C11-C17,C19-C22alkyltri.ethylbenzenes *** to i. spectroscopy,wi.h i.creasi.g temperature and pressure of the hydrothermal flui. the i.tensi.y of the absorpti.n bands of the aromati. ri.g,ali.hati. fragments,and oxygen-contai.i.g groups i.creases i. resi.s;the structural-group composi.i.n of asphaltenes changes li.tle:aromati.i.y and the content of condensed

关键词： Carbonate deposi.s Organi. matter Hydrothermal flui. Mobi.e hydrocarbons

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克制的否定——马克思论消费

马克思主义哲学 2024年第4期 88-101页

作者： [以色列]i.兰达马新晶(译) 以色列开放大学中国社会科学院大学哲学院中国社会科学院哲学研究所

本文回顾了马克思对消费的理解,并试图将其从黯然失色的批判理论阴影中拯救出来,后者将马克思的理论阐释为对虚假需求的猛烈扦击。有人认为,马克思以一种普遍有利的方式看待资本主义所带来的需求扩张,但却认为资本主义是一种将使用价值... 详细信息

本文回顾了马克思对消费的理解,并试图将其从黯然失色的批判理论阴影中拯救出来,后者将马克思的理论阐释为对虚假需求的猛烈扦击。有人认为,马克思以一种普遍有利的方式看待资本主义所带来的需求扩张,但却认为资本主义是一种将使用价值与利润积累的必要性捆绑在一起的制度,从而限制和压抑了大众消费。虽然马克思的立场与传统的反消费主义截然不同,但与对“消费社会”的自鸣得意的肯定也同样是不相容的,因为马克思一直致力于一场革命性变革,这场变革将从量和质两个方面改变消费。本文首先讨论马克思在《1844年经济学哲学手稿》中的观点,这一文本也是一直以来被大家引用的文本。第二部分继续考察马克思的思想在后续文本特别是《政治经济学批判(1857-1858年手稿)》中的进一步演变。

关键词：马克思马克思主义批判理论消费消费主义物质文化

Domi.ance of transposable element‑related satDNAs results i. great complexi.y of“satDNA li.rary”and i.vokes the extensi.n towards“repeti.i.e DNA li.rary”

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Mari.e Li.e Sci.nce & Technology 2024年第2期6卷 236-251页

作者： Moni.a Tunji.‑Cvi.ani. Dani.l García‑Souto Juan J.Pasantes EvaŠatovi.‑Vukši. Di.i.i.n of Molecular Bi.logy Ruđer BoškovićInstitute10000 ZagrebCroatia Genomes and Di.ease Centre for Research in Molecular Medicine and Chronic Diseases(CIMUS)Universidade de Santiago de Compostela15706 Santiago de CompostelaSpain Department of Zoology Genetics and Physical AnthropologyUniversidade de Santiago de Compostela15706 Santiago de CompostelaSpain Centro de i.vesti.aci.n Mari.a Dpto de BioquímicaXenética e InmunoloxíaUniversidade de Vigo36310 VigoSpain

Research on bi.alves i. fast-growi.g,i.cludi.g genome-wi.e analyses and genome *** characteri.ti.s quali.y oysters as a valuable model to explore repeti.i.e DNA sequences and thei. genome *** we char-acteri.e the satelli.omes of fi.e speci.s i. the fami.y Ostrei.ae(Crassostrea angulata,***,***,***,Ostrea eduli.),reveali.g a substanti.l number of satelli.e DNAs(satDNAs)per genome(rangi.g between 33 and 61)and peculi.ri.i.s i. the composi.i.n of thei. *** satDNAs were ei.her associ.ted to or deri.ed from transposable elements,di.playi.g a scarci.y of transposable element-unrelated satDNAs i. these *** to the non-conventi.nal satelli.ome consti.uti.n and domi.ance of Heli.ron-associ.ted satDNAs,comparati.e satelli.omi.s demanded more i.-depth analyses than standardly *** analyses(i.cludi.g ***,the fi.st bi.alve speci.s wi.h a defi.ed satelli.ome)revealed that 13 satDNAs occur i. all si. oyster genomes,wi.h Cg170/Hi.di.i.satDNA bei.g the most abundant i. all of *** the“satDNA li.rary model”hi.hli.hted the necessi.y to adjust thi. term when studyi.g tandem repeat evoluti.n i. organi.ms wi.h such *** repeti.i.e sequences wi.h potenti.l vari.ti.n i. the organi.ati.nal form and repeat-type affi.i.ti.n are exami.ed across related speci.s,the i.troducti.n of the terms“TE li.rary”and“repeti.i.e DNA li.rary”becomes essenti.l.

关键词： Satelli.ome Comparati.e satelli.omi.s Heli.ron Bi.alves “Dark matter of the genome”

Effect of Ta_(2)O_(5)nanoparti.les on bi.acti.i.y,composi.i.n,structure,i. vi.ro and i. vi.o behavi.r of PEO coati.gs on Mg-alloy

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Journal of Magnesi.m and Alloys 2024年第6期12卷 2360-2379页

作者： D.V.Mashtalyar i.M.i.shi.etski. V.V.Kashepa K.V.Nadarai. M.A.Pi.tkova A.i.Pleshkova K.A.Fomenko A.Yu.Usti.ov S.L.Si.ebryukhov S.V.Gnedenkov i.sti.ute of Chemi.try Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far Eastern Federal Uni.ersi.y Vladivostok690950Russia Regi.nal Cli.i.al Dermatovenerologi.al Di.pensary Vladivostok690033Russia

The present study i.vesti.ates the physi.al and chemi.al characteri.ti.s,behavi.r i. vi.ro and i. vi.o,and bi.compati.i.i.y of coati.gs contai.i.g Ta_(2)O_(5),whi.h are obtai.ed by plasma electrolyti. oxi.ati.n(PEO)on MA8 magnesi.m *** obtai.ed coati.gs demonstrate i. vi.o bi.compati.i.i.y and i. vi.ro *** to the base PEO coati.g,the layers contai.i.g Ta_(2)O_(5)faci.i.ate the development of apati.e i. si.ulated body flui.,suggesti.g that the i.clusi.n of nanoparti.les i.proves bi.acti.i.y of the *** was found that i.corporati.n of Ta_(2)O_(5)nanoparti.les i.creases roughness and porosi.y of the formed layers by i.creasi.g parti.le concentrati.n i. electrolytes for the PEO process contri.uti.g to suffi.i.nt soft ti.sue i.growth i. *** on i. vi.o studi.s,these coati.gs also provi.e favorable ti.sue response and mi.i.al i.flammatory reacti.n i. compari.on wi.h the bare magnesi.m alloy due to protecti.n of li.i.g ti.sues from deleteri.us corrosi.n events of magnesi.m i.plant such as local alkali.ati.n and i.tense hydrogen *** results obtai.ed i. the present study concluded bi.compati.i.i.y,ti.sue i.tegrati.n of the PEO coati.gs contai.i.g Ta_(2)O_(5)nanoparti.les maki.g them a promi.i.g protecti.e layer for bi.degradable magnesi.m i.plants.

关键词： Plasma electrolyti. oxi.ati.n Bi.acti.e coati.gs Tantalum pentoxi.e Si.ulated body flui.(SBF) Apati.e formati.n Hi.tology