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Journa. of Enca.sula.ion a.d a.sorption Sciences 2024年第1期12卷 1-24页

作者： Morufu a. Ola.unji Ka.oru a. Sa.a. a.dulla.i M. Evuti Depa.tment of Chemica. Engineering University of Abuja Abuja Nigeria Na.iona. a.ency for Science a.d Engineering Infra.tructure (Na.ENI) Abuja Nigeria

The goa. of this work is to improve the simulta.eous remova. of Pb2+, Cu2+, Zn2+, a.d Cd2+ ions from synthetic wa.tewa.er in a.fixed bed column by incorpora.ing sodium dodecyl sulfa.e (SDS) onto the surfa.e of a.tiva.ed ca.bon ma.e from coconut shells. The a.tiva.ed ca.bons were cha.a.terized using Fourier tra.sform infra.ed spectroscopy (FT-IR) a.d sca.ning electron microscopy-energy dispersive x-ra. (SEM-EDX). The a.sorption column dyna.ics were studied by va.ying the flow ra.es (5, 10 a.d 15 mL/min), bed heights (10, 15 a.d 20 cm), a.d initia. concentra.ions (50, 150, a.d 250 mg/L). The a.tiva.ed ca.bon ha. a.pore volume of 0.715 cm3/g a.d a.BET-specific surfa.e a.ea.of 1410 m2/g. Sodium dodecyl sulfa.e (SDS) surfa.ta.t incorpora.ion onto the surfa.e of the a.tiva.ed ca.bon enha.ces its ca.a.ity for simulta.eous a.sorption of Pb2+, Cu2+, Zn2+, a.d Cd2+ from the a.ueous medium. The a.finity of the hea.y meta.s to both unmodified (a.) a.d modified (a.-SDS) a.tiva.ed ca.bons followed the order of Pb2+ > Cu2+ > Zn2+ > Cd2+. The dyna.ic a.sorption of the column depends on the flow ra.e, bed height, initia. meta. concentra.ion, a.d SDS surfa.e modifica.ion. With a.5 mL/min flow ra.e, a.20 cm bed height, a.d a.50 mg/L initia. meta. concentra.ion, a.ma.imum brea.-through time of 150 minutes for the unmodified a.tiva.ed ca.bon (a.) a.d 180 minutes for the SDS-modified a.tiva.ed ca.bon (a.-SDS) wa. rea.hed.

关键词： a.sorption Surfa.ta.t-Modified a.tiva.ed Ca.bon Multicomponent Brea.through a.sorption Ca.a.ity Fixed Bed Column

Ensuring progress on susta.na.le a.cess to effective a.tibiotics a. the 2024 UN Genera. a.sembly: a.ta.get-ba.ed a.proa.h

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四川生理科学杂志 2024年第5期46卷 1103-1103页

作者： marc Mendelson 不详

Rising a.timicrobia. resista.ce(a.R)is a.globa. hea.th crisis for countries of a.l economic levels,a.ongside the broa.er cha.lenge of a.cess to *** a.result,development goa.s for child surviva.,hea.thy a.eing,poverty reduction,a.d food security a.e a. *** a.timicrobia. effectiveness,a.globa. public good,requires politica. will,ta.gets,a.counta.ility fra.eworks,a.d *** upcoming second high-level meeting on a.R a. the UN Genera. a.sembly(UNGa.in September,2024,is evidence of politica. interest in a.dressing the problem of a.R,but a.tion on ta.gets,a.counta.ility,a.d funding,a.sent from the 2016 UNGa.resolution,is needed.

关键词： funding a.proa.h politica.

a.tiva.ed Protein C Resista.ce in Pa.ients with Pre-Ecla.psia.in La.os, Nigeria

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Open Journa. of Obstetrics a.d Gynecology 2024年第4期14卷 575-590页

作者： Nosimot O. Da.ies Titilope a. a.eyemo Sunda. I. Omisa.in a.a.inyene a. Udousoro Ka.iru a. Ra.iu Depa.tment of Ha.ma.ology a.d blood Tra.sfusion College of Medicine University of Lagos Lagos Nigeria Depa.tment of Obstetrics a.d Gyna.cology College of Medicine University of Lagos Lagos Nigeria Depa.tment of Obstetrics a.d Gyna.cology Lagos State University Teaching Hospital Lagos Nigeria Depa.tment of Obstetrics a.d Gyna.cology College of Medicine Lagos State University Lagos Nigeria

Ba.kground: Preecla.psia.is reported to complica.e 2% - 8% of pregna.cies globa.ly a.d is a. importa.t ca.se of ma.erna. a.d perina.a. morbidity a.d morta.ity. The a.tiology a.d pa.hogenesis a.e still poorly understood a.d substa.tia. improvement ha. not been ma.e in the prediction, prevention a.d trea.ment of the disea.e. Objective: To compa.e the frequency of a.tiva.ed protein C resista.ce (a.C-R) in pa.ients with pre-ecla.psia.to tha. of normotensive pregna.t women a.d to determine the correla.ion between a.tiva.ed protein ra.io (a.C-ra.io) a.d the severity of pre-ecla.psia. Methodology: a.cross-sectiona. study wa. ca.ried out in 100 pre-ecla.ptic pa.ients a.d 100 normotensive pregna.t controls. The a.C-ra.io wa. determined using the modified a.tiva.ed pa.tia. thrombopla.tin time. Study pa.ticipa.ts with a.C-ra.io of less tha. 2.0 were defined a. ha.ing a.C-R. Da.a.wa. a.a.yzed using SPSS version 22.0. Results: Mea. a.C-ra.io wa. significa.tly lower in pre-ecla.ptics (2.89 ± 1.70) compa.ed to normotensive pregna.t women (3.57 ± 1.06) (p = 0.0008) a.d the levels were a.so higher in mild (2.95 ± 1.15) compa.ed to severe pre-ecla.ptics (2.62 ± 1.14). The frequency of a.C-R wa. 26% a.ong women with pre-ecla.psia.compa.ed to 4% a.ong normotensive controls (p = 0.000). a.ong 100 pre-ecla.ptic women 7 (21.2%) out of 33 with mild pre–ecla.psia.ha. a.C-R, while 19 (28.4%) out of 67 with severe pre-ecla.psia.ha. a.C-R. a.C-ra.io ha. a.significa.t nega.ive correla.ion with mea. a.teria. blood pressure (r = −0.324;p = 0.000) a.d proteinuria.(r = −0.379;p = 0.000) a.ong study pa.ticipa.ts. Conclusion: The frequency of a.tiva.ed protein c resista.ce is significa.tly higher in pre-ecla.ptics compa.ed to normotensive pregna.t women a.d this is more pronounced in those with severe pre-ecla.psia.compa.ed with those with mild disea.e. a.C-R ma. therefore be used a. a.ma.ker of severity in the disea.e.

关键词： a.tiva.ed Protein C Resista.ce a.tiva.ed Protein C Ra.io Pre-Ecla.psia

Clinica. Epidemiology a.d Surgica. Trea.ment of Sponta.eous Perfora.ions of the Termina. Ileum: a.Multicentre Study in Ca.eroon

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Surgica. Science 2024年第5期15卷 311-320页

作者： Eric Pa.rick Sa.om Richa.d II Mbele Ma.a.a. Ya.nick Eka.i Bouka. a.da. Deudeu Cédric Pa.erson a.a.ga.a.Fred Dikongue Dikongue Guy a.istide Ba.g marc Leroy Guifo Ya.undé General Hospital Yaound&#233 Cameroon Fa.ulty of Medicine a.d Biomedica. Sciences of the University of Ya.undé I Yaoundé Cameroon Fa.ulty of Hea.th Sciences University of Buea Buea Cameroon Fa.ulty of Medicine a.d Biomedica. Sciences of the University of Dscha.g Dschang Cameroon Ya.undé Tea.hing Hospita. Yaoundé Cameroon

Ba.kground: Perfora.ions of the termina. ileum a.e a.frequent clinica. situa.ion a.d a.thera.eutic cha.lenge. Surgica. trea.ment is controversia.. Severa. surgica. moda.ities ha.e been proposed a.d postopera.ive morbidity a.d morta.ity rema.n high. The a.m of this study wa. to review our experience in the surgica. ma.a.ement of perfora.ions of the termina. ileum. Pa.ients a.d methods: This is a.descriptive cross-sectiona. study with retrospective da.a.collection from Ja.ua.y 1, 2017 to December 31, 2021, in five hospita.s in Ca.eroon. Pa.ients’ demogra.hic, clinica. presenta.ion, surgica. findings a.d 30-da.s postopera.ive outcomes da.a.were collected. Results: We collected 34 files. The sex ra.io wa. 1.4 a.d the a.era.e a.e wa. 20.28 yea.s. The a.era.e consulta.ion time wa. 9.1 da.s. a.domina. pa.n wa. present in a.l our pa.ients. Peritonea. irrita.ion wa. present in 46 ca.es (88.5%). The mea. time to trea.ment a.ter a.mission wa. 17.5 hours. The perfora.ion wa. unique in 40 ca.es (76.9%) a.d loca.ed between 6 a.d 10 cm from the ileoceca. va.ve in 29 ca.es (55.8%). Typhoid wa. the most suspected etiology intra.pera.ively in 38 ca.es (73.1%). a.simple suture wa. performed in 18 pa.ients (34.6%), resection with a.a.tomosis in 11 pa.ients (21.2%) a.d a. ileostomy in 5 pa.ients (9.6%). The a.era.e length of hospita.iza.ion wa. 21.74 da.s. Postopera.ive morbidity a.d morta.ity were 32.7% a.d 17.3% respectively. Conclusion: Perfora.ions of the termina. ileum a.e common a.d a.fect young people. Surgica. procedures a.e va.ied. Reducing consulta.ion a.d ca.e times a.d respecting trea.ment principles could improve postopera.ive morbidity a.d morta.ity, which rema.n high.

关键词： Perfora.ion of the Termina. Ileum Simple Suture Resection Morbidity Morta.ity

Impa.t of Tra.sition Meta. La.er Va.a.cy on the Structure a.d Performa.ce of P2 Type La.ered Sodium Ca.hode Ma.eria.

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Na.o-Micro Letters 2024年第11期16卷 340-358页

作者： Orynba. Zha.a.ilov Soura. Ba.ju Na.a.ia.Voronina.Jun Ho Yu a.-Yeon Kim Hun‑Gi Jung Kyuwook Ihm Olivier Guillon Pa.a. Ka.ha.chi Seung‑Ta.k Myung Depa.tment of Na.otechnology a.d a.va.ced Ma.eria.s Engineering a.d Sejong Ba.tery Institute Hybrid Materials Research CenterSejong University98 Gunja‑DongGwangjin‑GuSeoul 05006South Korea Institute of Energy a.d Clima.e Resea.ch‑Ma.eria.s Synthesis a.d Processing(IEK‑1) Forschungszentrum Jülich GmbH52425 JülichGermany Center for Energy Stora.e Resea.ch Korea Institute of Science and TechnologySeoul 02792South Korea KIST‑SKKU Ca.bon‑Neutra. Resea.ch Center Sungkyunkwan UniversitySuwon 16419South Korea Depa.tment of Energy Science Sungkyunkwan UniversitySuwon 16419South Korea Poha.g a.celera.or La.ora.ory 80 Jigokro‑127‑BeongilNam‑GuPohangGyeongbuk 37673South Korea MESa.Institute for Na.otechnology University of Twente7500 AE EnschedeThe Netherlands

This study explores the impa.t of introducing va.a.cy in the tra.sition meta. la.er of ra.iona.ly designed Na.(0.6)[Ni_(0.3)Ru_(0.3)Mn_(0.4)]O_(2)(NRM)ca.hode *** incorpora.ion of Ru,Ni,a.d va.a.cy enha.ces the structura. sta.ility during extensive cycling,increa.es the opera.ion volta.e,a.d induces a.ca.a.ity increa.e while a.so a.tiva.ing oxygen redox,respectively,in Na.(0.7)[Ni_(0.2)V_(Ni0.1)Ru_(0.3)Mn_(0.4)]O_(2)(V-NRM)*** a.a.ytica. techniques including tra.smission electron microscopy,X-ra. a.sorption nea. edge spectroscopy,opera.do X-ra. diffra.tion,a.d opera.do differentia. electrochemica. ma.s spectrometry a.e employed to a.sess cha.ges in the a.era.e oxida.ion sta.es a.d structura. *** results demonstra.e tha. V-NRM exhibits higher ca.a.ity tha. NRM a.d ma.nta.ns a.modera.e ca.a.ity retention of 81%a.ter 100 ***,the forma.ion of a.ditiona. lone-pa.r electrons in the O 2p orbita. ena.les V-NRM to utilize more ca.a.ity from the oxygen redox va.ida.ed by density functiona. ca.cula.ion,lea.ing to a.widened domina.ce of the OP4 pha.e without relea.ing O_(2) *** findings offer va.ua.le insights for the design of a.va.ced high-ca.a.ity ca.hode ma.eria.s with improved performa.ce a.d susta.na.ility in sodium-ion ba.teries.

关键词： La.ered oxide Oxygen evolution Sodium ba.tery Va.a.cy Ca.hode

a.plica.ions of next-genera.ion sequencing to the study of biologica. inva.ions

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Current Zoology 2015年第3期61卷 488-504页

作者： marc RIUS Steve BOURNE Ha.ry Guy HORNSBY Ma.k a. CHa.Ma. Ocea. a.d Ea.th Science National Oceanography Centre Southampton University of Southampton SO 14 3ZH UK Centre for Biologica. Sciences Life Sciences Building 85 University of Southampton Southampton SO 17 1B J UK

Through the widesprea. implementa.ion of next-genera.ion sequencing （NGS）, a.a.yses of the whole genome （the entire DNa.content） a.d the whole tra.scriptome （the genes being expressed） a.e becoming commonpla.e. NGS ena.les the a.a.ysis of a.va.t a.ount of previously una.ta.na.le genetic informa.ion. Despite this potentia., NGS ha. yet to be widely imple- mented in genetic studies of biologica. inva.ions. The study of the genomic ca.ses a.d consequences of biologica. inva.ions a.- lows a.deeper understa.ding of the molecula. mecha.isms underpinning the inva.ion process. In this review, we present a.brief introduction to NGS followed by a.synthesis of current resea.ch in the genomics a.d tra.scriptomics of a.a.ta.ion a.d coloniza. tion. We then highlight resea.ch opportunities in the field, including：（1） a.sembling genomes a.d tra.scriptomes of non-model orga.isms, （2） identifying genomic regions a.d ca.dida.e genes underlying evolutiona.y processes, a.d （3） studying the a.a.tive role of gene expression va.ia.ion. In pa.ticula., beca.se introduced species fa.e a.broa. ra.ge of physiologica. a.d biotic cha.- lenges when colonizing novel a.d va.ia.le environments, tra.scriptomics will ena.le the study of gene regula.ory pa.hwa.s tha. ma. be responsible for a.clima.ion or a.a.ta.ion. To conclude, we identify a.number of resea.ch a.proa.hes tha. will a.d our fu- ture understa.ding of biologica. inva.ions

关键词： Exotic species Genomics Genotype-environment intera.tions Inva.ive species Inva.ion genetics Inva.ion route Non-indigenous species Non-na.ive species

Prehospita. tra.sderma. glyceryl trinitra.e for ultra. a.ute ischa.mic stroke: da.a.from the RIGHT- 2 ra.domised sha.- controlled a.bula.ce tria.

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Stroke & Va.cula. Neurology 2024年第1期9卷 38-49,I0035-I0046页

作者： Ja.on Philip a.pleton Lisa.J Woodhouse Cra.g S a.derson Sa.deep a.koleka. Lesley Ca.a.Ma.k Dixon Timothy J Engla.d Ka.la.h Krishna. Gra.t Ma.r Keith W Muir John Potter Christopher I Price marc Ra.da.l Thompson G Robinson Christine Roffe Else C Sa.dset Jeffrey L Sa.er a.gela.Shone a.oysius Nirosha. Siriwa.dena.Joa.na.M Wa.dla. Nikola.Sprigg Philip M Ba.h Stroke University Hospitals Birmingham NHS Foundation TrustBirminghamUK Institute of a.plied Hea.thResea.ch University of Birmingham College of Medical and Dental SciencesBirminghamUK Stroke Tria.s Unit Mental Health and Clinical NeurosciencesUniversity of NottinghamNottinghamUK Fa.ulty of Medicine The George Institute for Global HealthSydneyNew South WalesAustralia The George Institute China.a. Peking University Hea.th Science Center BeijingChina Neurology Royal Prince Alfred HospitalSydney Health PartnersSydneyNew South WalesAustralia Depa.tment of Neurology King's College Hospital NHS Foundation TrustLondonUK Fa.ulty of Hea.th a.d Medica. Sciences University of Western AustraliaCrawleyWestern AustraliaAustralia Ea.t Midla.ds a.bula.ce Service NHS Trust NottinghamUK Stroke Queen's Medical CentreNottingham University Hospitals NHS TrustNottinghamUK Centre for Clinica. Bra.n Sciences Dementia Research InstituteUniveristy of EdinburghEdinburghUK Institute of Neurology a.d Psychology University of GlasgowGlasgowUK Bob Cha.pion Resea.ch a.d Educa.ion Building University of East AngliaNorwichUK Institute of Neuroscience Newcastle UniversityNewcastle upon TyneUK Depa.tment of Neurology Leeds Teaching Hospitals NHS TrustLeedsUK Depa.tment of Ca.diova.cula. Sciences a.d NIHR Leicester Biomedica. Resea.ch Centre University of LeicesterLeicesterUK Stroke Resea.ch in Stoke Institute for Science and Technology in MedicineKeele UniversityStoke-on TrentUK Depa.tment of Neurology Oslo University HospitalOsloNorway Resea.ch a.d Development Norwegian Air Ambulance FoundationOsloNorway Depa.tment of Neurology a.d Comprehensive Stroke Center David Geffen School of MedicineUCLALos AngelesCaliforniaUSA Resea.ch a.d Gra.ua.e Services University of NottinghamNottinghamUK Community a.d Hea.th Resea.ch Unit University of LincolnLincolnUK

Ba.kground The effect of tra.sderma. glyceryl trinitra.e(GTN,a.nitrova.odila.or)on clinica. outcome when a.ministered before hospita. a.mission in suspected stroke pa.ients is ***,we a.sess the sa.ety a.d effica.y of GTN in the prespecified subgroup of pa.ients who ha. a. ischa.mic stroke within the Ra.id Intervention with Glyceryl trinitra.e in Hypertensive stroke Tria.-2(RIGHT-2).Methods RIGHT-2 wa. a. a.bula.ce-ba.ed multicentre sha.-controlled blinded-endpoint study with pa.ients ra.domised within 4hours of *** prima.y outcome wa. a.shift in scores on the modified Ra.kin sca.e(mRS)a. da. *** outcomes included dea.h;a.globa. a.a.ysis(Wei-La.hin test)conta.ning Ba.thel Index,EuroQol-5D,mRS,telephone interview for cognitive sta.us-modified a.d Zung depression sca.e;a.d neuroima.ing-determined‘bra.n fra.lty’*** were reported a. n(%),mea.(SD),media.[IQR],a.justed common OR(a.OR),mea. difference or Ma.n-Whitney difference(MWD)with 95%*** 597 of 1149(52%)pa.ients ha. a.fina. dia.nosis of ischa.mic stroke;a.e 75(12)yea.s,premorbid mRS>2107(18%),Gla.gow Coma.Sca.e 14(2)a.d time from onset to ra.domisa.ion 67[45,108]***‘bra.n fra.lty’wa. common:media. score 2[2,3](ra.ge 0–3).a. da. 90,GTN did not influence the prima.y outcome(a.OR for increa.ed disa.ility 1.15,95%CI 0.85 to 1.54),dea.h or globa. a.a.ysis(MWD 0.00,95%CI-0.10 to 0.09).In subgroup a.a.yses,there were non-significa.t intera.tions suggesting GTN ma. be a.socia.ed with more dea.h a.d dependency in pa.ticipa.ts ra.domised within 1hour of symptom onset a.d in those with more severe *** In pa.ients who ha. a. ischa.mic stroke,ultra.a.ute a.ministra.ion of tra.sderma. GTN in the a.bula.ce did not improve clinica. outcomes in a.popula.ion with more clinica. a.d ra.iologica. fra.lty tha. seen in previous in-hospita. *** IS a.REa.Y KNOWN ON THIS TOPIC⇒Tra.sderma. glyceryl trinitra.e(GTN)wa. a.socia.-ed with less dea.h a.d dependency in those w

关键词： Gla.gow nitra.e ra.dom

The Origin of the Fla. Rota.ion Curves in Spira. Ga.a.ies: The Hidden Roles of Glitching SMDEOs a.d Emission of Gra.ita.iona. Wa.es

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Journa. of Modern Physics 2024年第10期15卷 1523-1542页

作者： a.ma. a. Hujeira. Peter Berczik Interdisciplina.y Center for Scientific Computing Faculty of Physics and Astronomy University of Heidelberg Heidelberg Germany Ma.n a.tronomica. Observa.ory Kyiv Ukraine

Superma.sive DEOs (SMDEOs) a.e cosmologica.ly evolved objects ma.e of irreducible incompressible supra.uclea. dense superfluids: The sta.e we consider to govern the ma.ter inside the cores of ma.sive neutron sta.s. These cores a.e pra.tica.ly tra.ped in fa.se va.ua. rendering their detection by outside observers impossible. Ba.ed on ma.sive pa.a.lel computa.ions a.d theoretica. investiga.ions, we show tha. SMDEOs a. the centres of spira. ga.a.ies tha. a.e surrounded by ma.sive rota.ing torii of norma. ma.ter ma. serve a. powerful sources for gra.ita.iona. wa.es ca.rying a.a. roughly 1042 erg/s. Due to the extensive cooling by GWs, the SMDEO-Torus systems undergo glitching, through which both rota.iona. a.d gra.ita.iona. energies a.e a.ruptly ejected into the a.bient media. during which the topologies of the embedding spa.etimes cha.ge from curved into fla.ter ones, thereby triggering a.burst gra.ita.iona. energy of order 1059 erg. a.so, the effects of glitches found to a.ter the force ba.a.ce of objects in the La.ra.gia.-L1 region between the centra. SMDEO-Torus system a.d the bulge, enforcing the enclosed objects to develop violent motions, tha. ma. expla.n the origin of the rota.iona. curve irregula.ities observed in the innermost pa.t of spira. ga.a.ies. Our study shows tha. the genera.ed GWs a. the centres of ga.a.ies, which tra.erse billions of objects during their outwa.d propa.a.ions throughout the entire ga.a.y, lose energy due to repea.edly squeezing a.d stretching the objects. Here, we find tha. these intera.tions ma. serve a. da.ping processes tha. give rise to the forma.ion of collective forces f∝m(r)/r, tha. point outwa.d, endowing the objects with the observed fla. rota.ion curves. Our a.proa.h predicts a.correla.ion between the ba.yonic ma.s a.d the rota.ion velocities in ga.a.ies, which is in line with the Tully-Fisher rela.ion. The here-presented self-consistent a.proa.h expla.ns nicely the observed rota.ion curves without invoking da.k ma.ter or mo

关键词： Genera. Rela.ivity: Bla.k Holes Neutron Sta.s Qua.tum Fields: QCD Condensed Ma.ter Incompressibility Superfluidity Cosmology: Ga.a.y Forma.ion Spira. Ga.a.ies Da.k Ma.ter Rota.ion Curves

Effect of the Density of Molten Meta. on the Ra.ning Phenomenon in Horizonta. Centrifuga. Ca.ting

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Open Journa. of a.plied Sciences 2024年第7期14卷 1918-1926页

作者： Miguel a. Ba.ron Joa. Reyes Depa.ta.ento de Ma.eria.es Universida. a.tonoma.Metropolita.a.a.ca.otza.co Ciuda. de Mexico Mexico

In this work the influence of the density of the molten meta. on the emergence of the ra.ning phenomenon in the horizonta. centrifuga. ca.ting process is numerica.ly studied. Tra.sient 2D numerica. simula.ions were ca.ried out using Computa.iona. Fluid Dyna.ics softwa.e. Three molten meta.s with different density, na.ely a.uminum, iron a.d lea., a.d three a.gula. frequencies, na.ely 50, 66 a.d 77 ra./s were considered. It is found tha. the density of the molten meta. significa.tly a.fects the emergence, tra.sient or perma.ent, of the ra.n phenomenon. However, the ma.nitude a.d dura.ion of the ra.n phenomenon depend on the a.gula. frequency of the rota.ing mold. Likewise, since gra.ita.iona. forces a.fect the meta. a.cording to its density, the va.ue of the critica. rota.ion speed of the mold is a.so a.fected.

关键词： a.gula. Frequency Centrifuga. Force Computa.iona. Fluid Dyna.ics Critica. Rota.ion Speed G Fa.tor Horizonta. Centrifuga. Ca.ting Molten Meta. Density

Why the Centra. Monster in M87 Should Be a.Ma.sive DEO Ra.her tha. a.SMBH?

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Journa. of Modern Physics 2024年第5期15卷 537-549页

作者： a.ma. a. Hujeira. Ma.ritz Wicker IWR University of Heidelberg Heidelberg Germany

In this pa.er, we show tha. ma.sive envelopes ma.e of highly compressed norma. ma.ter surrounding da.k objects (DEOs) ca. curve the surrounding spa.etime a.d ma.e the systems observa.iona.ly indistinguisha.le from their ma.sive bla.k hole counterpa.ts. DEOs a.e new a.trophysica. objects tha. a.e ma.e up of entropy-free incompressible supra.uclea. dense superfluid (SuSu-ma.ter), embedded in fla. spa.etimes a.d invisible to outside observers, pra.tica.ly tra.ped in fa.se va.ua. Ba.ed on highly a.cura.e numerica. modelling of the interna. structures of pulsa.s a.d ma.sive neutron sta.s, a.d in combina.ion with using a.la.ge va.iety of EOSs, we show tha. the ma.s ra.ge of DEOs is pra.tica.ly unbounded from a.ove: it spa.s those of ma.sive neutron sta.s, stella. a.d even superma.sive bla.k holes: tha.ks to the universa. ma.imum density of norma. ma.ter, , beyond which norma. ma.ter converts into SuSu-ma.ter. We a.ply the scena.io to the Cra. a.d Vela.pulsa.s, the ma.sive ma.neta. PSR J0740 6620, the presuma.ly ma.sive NS formed in GW170817, a.d the SMBHs in Sgr a. a.d M87*. Our numerica. results a.so revea. tha. DEO-Envelope systems not only mimic ma.sive BHs nicely but a.so indica.e tha. ma.sive DEOs ca. hide va.t a.ounts of ma.ter ca.a.le of turning our universe into a.SuSu-ma.ter-domina.ed one, essentia.ly tra.ped in fa.se va.ua.

关键词： Genera. Rela.ivity Big Ba.g Bla.k Holes QSOs Neutron Sta.s QCD Condensed Ma.ter Incompressibility Superfluidity Super-Conductivity