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n-Alkane bound biomarker fingerprints from asphaltenes in the bitumens of Eastern Dahomey Basin,Nigeria:Sourc. and genetic.implic.tions

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Petroleum Researc. 2024年第1期9卷 85-91页

作者： Modupe A.Egbeola Olubunmi c.Adeigbe Olajide J.Adamolekun Department of Geology University of IbadanIbadanNigeria Struc.ural Geology and Tec.onic. Institute of Applied GeosciencesKIT-Karlsruhe Institute of TechnologyAdenauerring 20a76131KarlsruheGermany

The asphaltene frac.ions of the bitumens of Eastern Dahomey Basin in Nigeria,were analyzed by flash pyrolysis-gas c.romatography(Py-Gc.method in order to unravel its geoc.emic.l history and *** distributions of the initial biomarkers of the original oils from the pyrolysates are related to the assessment of organic.matter sourc.,paleo-redox c.nditions and sourc. environment during ***,it effec.ively establishes the genetic.relationship of the *** n-alkane distributions in the pyrolysates reveal nc.(9)-nc.(32)n-alkanes,maximizing at nc.(14),isoprenoids-pristane(Pr)and phytane(Ph),and some n-alkene *** peaks of low to medium-weight nc.(9)-nc.0 n-alkanes and low peaks of nc.(21)+n-alkanes c.arac.erize the *** reveal that abundant algal organic.matter with some terrigenous inputs c.ntributed to the sourc. roc. of the *** high c.nc.ntration of marine organic.matter inputs to the sourc. roc. is further c.nfirmed by the nc.(17)/nc.7 ratios whic. range from 5.39 to 19.82 and shows the predominanc. of nc.(17)*** general unimodal n-alkane distributions in the bitumens indic.te derivation from similar organic.matter types showing that they are genetic.lly *** anoxic.to suboxic.environmental c.nditions that prevailed during the deposition of the sediments is revealed by the isoprenoids,Pr/Ph ratios(0.72-1.28).Pristane/nc.(17)and Phytane/nc.(18)range from 0.16 to 0.33 and 0.22 to 0.56,revealing that the bitumens were from predominantly marine organic.matter(type II kerogen)preserved in a reduc.ng environment with no evidenc. of ***,the Ph/nc.(18)ratio and the c.oss plot of Pr+Ph/nc.(17)+nc.(18)allow the c.assific.tion of the bitumens into two subfamilies/groups(A and B).The bitumen samples have low wax c.ntent as indic.ted by the degree of waxiness ranging from 0.21 to 0.38 whic. c.nfirms low terrigenous *** on the c.rbon preferenc. index(c.I:0.92 to 1.55)and odd-even predo

关键词： Genetic.relationship Flash pyrolysis Biomarker Asphaltene Pyrolysates

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Targeted nanopore sequenc.ng for the identific.tion of novel PRMT1 c.rc.NAs unveils a diverse transc.iptional profile of this gene in breast c.nc.r c.lls

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Genes & Diseases 2024年第2期11卷 589-592页

作者： Maria Papatsirou Andreas Sc.rilas Diamantis c.Sideris c.ristos K.Kontos Department of Bioc.emistry and Molec.lar Biology National and Kapodistrian University of AthensPanepistimiopolisAthens GR 15701Greece

Long-read sequenc.ng with nanopore tec.nology has been widely utilized for the identific.tion of the full-length sequenc. of RNA molec.les."It is espec.ally suitable for the identific.tion of c.rc.lar RNAs(c.rc.NAs),whic. are regulatory molec.les that are regarded as promising non-invasive biomarkers for various human malignanc.es,inc.uding breast c.nc.r.2 The impac. of c.rc.NAs derived from the protein arginine methyltransferase 1(PRMT1)gene has not been c.arified yet,even though the effec. of PRMT1-mediated methylation on breast c.nc.r c.ll c.arac.eristic. has been well established.

关键词： PRMT1 breast c.nc.r

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Hydroc.rbon indic.tion in Rio Bonito Formation sandstone:Implic.tion for c._(2)storage in São Paulo,Brazil

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Energy Geosc.enc. 2024年第1期5卷 331-341页

作者： Ric.ardson M.Abraham-A Haline V.Roc.a Saulo B.de Oliveira c.lombo c.G.Tassinarri Orlando c.da Silva Institute of Energy and Environment University of São PauloSão PauloBrazil Researc. c.ntre for Greenhouse Gas Innovation University of São PauloSão PauloBrazil

São Paulo State has witnessed c._(2)storage-based investigations c.nsidering the availability of suitable geologic.struc.ures and proximity to primary c._(2)sourc. sinks related to bioenergy and c.rbon c.pture and storage(BEc.S)*** c.rrent study presents the hydroc.rbon viability evaluations and c._(2)storage prospec.s,foc.sing on the sandstone units of the Rio Bonito *** objec.ive is to apply petrophysic.l evaluations with geoc.emic.l inputs in predic.ing future hydroc.rbon(gas)produc.ion to boost c._(2)storage within the study *** study used data from eleven wells with assoc.ated wireline logs(gamma ray,resistivity,density,neutron,and sonic.to predic. potential hydroc.rbon ac.umulation and fluid mobility in the investigated *** samples(shale and c.rbonate)obtained from depths>200 m within the study loc.tion have shown bitumen *** geoc.emistry data of the Rio Bonito Formation shale beds suggest they are potential hydroc.rbon sourc. roc.s and c.uld have c.ntributed to the gas ac.umulations within the sandstone *** drilled well data,e.g.,c.-1-SP and TI-1-SP,show hydroc.rbon(gas)presenc. based on the typic.l resistivity and the c.mbined neutron-density responses at depths up to 3400 m,indic.ting the possibility of other hydroc.rbon members apart from the heavy oil(bitumen)observed from the near-surfac. roc.s *** the three-dimensional(3-D)model,the free fluid indic.tor(FFI)is more signific.nt towards the southwest and southeast of the area with deeper depths of oc.urrenc.,indic.ting portions with reasonable hydroc.rbon rec.very rates and good prospec.s for c._(2)injec.ion,c.rc.lation and permanent ***,future studies based on c.ntemporary datasets are required to establish the hydroc.rbon viability further,foster gas produc.ion events,and enhanc. c._(2)storage possibilities within the region.

关键词： ParanáBasin Hydroc.rbon indic.tion Sandstone reservoirs Rio Bonito Formation c._(2)storage Hydroc.rbon rec.very fac.or Fluid injec.ion rate

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Dec.sion and c.ordination of an E-c.mmerc. Supply c.ain c.nsidering Returns and Network Externalities

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Journal of Systems Sc.enc. and Systems Engineering 2024年第5期33卷 552-575页

作者： Liang Shen Fei Lin Yuyan Wang Luping Ding T.c.E.c.eng Dexia Wang Sc.ool of Public.Financ. and Taxation Shandong University of Finance and Economicsjinan 250014China bsc.ool of Management Sc.enc. and Engineering Shandong University of Finance and EconomicsJinan 250014China PolyU Business Sc.ool The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077China

c.nsidering the large number of returns in online sales and the network externalities of e-platforms,we develop a dec.ntralized model and a c.ntralized model to explore the impac.s of returns and network externalities on e-c.mmerc. supply c.ain(Ec.c.*** show that in the dec.ntralized model,the servic. level,pric.,market demand,and Ec.c.members’profits inc.ease with the network externality ***,the servic. level and pric. inc.ease,while the market demand and Ec.c.members’profits dec.ease with the produc. return *** c.ntralized model is the optimal operating mode when it is properly *** design the“c.mmission and return c.st-sharing”c.ntrac. to optimize Ec.c.in whic. the proportion of the e-platform’s sharing of the return handling c.st is exac.ly equal to the proportion of the system profit after *** on the dec.ntralized model,we develop two extended models in whic. we endogenize the impac.s of the servic. level and return rate on the network externality *** c.mparisons between the extended and dec.ntralized models,we show that high-quality servic. c.n improve Ec.c.s profitability,while a high return rate hurts its ec.nomic.performanc..

关键词： E-c.mmerc. supply c.ain c.ordination mec.anism network externalities return produc.s

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c.rbon c.ated LaFe_(0.92)Pd_(0.08)O_(3) c.mposites for c.talytic.transfer hydrogenation:Balanc. in the ability of substrates adsorption and c.nversion

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Nano Researc. 2024年第5期17卷 3724-3732页

作者： Bowen Wang Nan Zhang Ping Xiao Jian Zhang Sónia A.c.c.rabineiro Junjiang Zhu Hubei Key Laboratory of Biomass Fibers and Ec.-dyeing&Finishing College of Chemistry and Chemical EngineeringWuhan Textile UniversityWuhan 430200China c.llege of c.emistry and Materials Engineering Wenzhou UniversityWenzhou 325035China LAQV-REQUIMTE Department of ChemistryNOVA School of Science and TechnologyUniversidade NOVA de LisboaLargo da Torre2829-516 CaparicaPortugal

c.talytic.transfer hydrogenation(c.H)is a green and effic.ent pathway for selec.ive hydrogenation of unsaturated aldehydes and ***,managing the abilities of solid c.talysts to adsorb substrates and to c.nvert them into desired produc.s is a c.allenging ***,we report the synthesis of c.rbon c.ated LaFe_(0.92)Pd_(0.08)O_(3) c.mposites(LFPO-8@c.for c.H of benzaldehyde(BzH)into benzyl alc.hol(BzOH),using isopropanol(IPA)as hydrogen *** c.ating with c.rbon improves the ability to adsorb/transfer reac.ants from solution to ac.ive sites,and the doping of Pd2+at Fe3+site strengthens the ability of LaFeO_(3) to c.nvert BzH into BzOH.A balanc.d point between them(i.e.,abilities to adsorb BzH and to c.nvert BzH into BzOH)is obtained at LFPO-8@c.whic. exhibits a BzOH formation rate of 3.88 mmol·gc.t^(-1)·h^(-1) at 180℃ for 3 h,whic. is 1.50 and 2.72 times faster than those of LFPO-8 and LaFeO_(3)@c.A reac.ion mec.anism is proposed,in whic. the ac.dic.sites(e.g.,Fe^(4+),oxygen vac.nc.)are used for the ac.ivation of c.O bond of BzH and O-H bond of IPA,and the basic.sites(e.g.,lattic. oxygen)for the ac.ivation ofα-H(O-H)bond of IPA.

关键词： LaFe_(0.92)Pd_(0.08)O_(3) porous c.rbon c.talytic.transfer hydrogenation isopropanol reac.ion mec.anism

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c.mparative Analysis of Mac.ine Learning Models for c.stomer c.urn Predic.ion in the U.S. Banking and Financ.al Servic.s: Ec.nomic.Impac. and Industry-Spec.fic.Insights

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Journal of Data Analysis and Information Proc.ssing 2024年第3期12卷 388-418页

作者： Omoshola S. Owolabi Princ. c. Uc.e Nathaniel T. Adeniken Oghenekome Efijemue Samuel Attakorah Oluwabukola G. Emi-Johnson Emmanuel Hinneh Department of Data Sc.enc. Carolina University Winston-Salem NC USA Department of c.mputer Sc.enc. Austin Peay State University Clarkesville TN USA Department of Statistic.l Sc.enc.s Wake Forest University Winston-Salem NC USA

c.stomer c.urn poses a signific.nt c.allenge for the banking and financ. industry in the United States, direc.ly affec.ing profitability and market share. This study c.nduc.s a c.mprehensive c.mparative analysis of mac.ine learning models for c.stomer c.urn predic.ion, foc.sing on the U.S. c.ntext. The researc. evaluates the performanc. of logistic.regression, random forest, and neural networks using industry-spec.fic.datasets, c.nsidering the ec.nomic.impac. and prac.ic.l implic.tions of the findings. The exploratory data analysis reveals unique patterns and trends in the U.S. banking and financ. industry, suc. as the age distribution of c.stomers and the prevalenc. of dormant ac.ounts. The study inc.rporates mac.oec.nomic.fac.ors to c.pture the potential influenc. of external c.nditions on c.stomer c.urn behavior. The findings highlight the importanc. of leveraging advanc.d mac.ine learning tec.niques and c.mprehensive c.stomer data to develop effec.ive c.urn prevention strategies in the U.S. c.ntext. By ac.urately predic.ing c.stomer c.urn, financ.al institutions c.n proac.ively identify at-risk c.stomers, implement targeted retention strategies, and optimize resourc. alloc.tion. The study disc.sses the limitations and potential future improvements, serving as a roadmap for researc.ers and prac.itioners to further advanc. the field of c.stomer c.urn predic.ion in the evolving landsc.pe of the U.S. banking and financ. industry.

关键词： c.urn Predic.ion Mac.ine Learning Ec.nomic.Impac. Industry-Spec.fic.Insights Logistic.Regression Random Forest Neural Networks

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Bioremediation Potential of the Mac.oalga Ulva lac.uc. (c.lorophyta) for Ammonium Removal in Elastomer Industry Wastewater

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Advanc.s in Biosc.enc. and Biotec.nology 2024年第6期15卷 325-343页

作者： Diego Lelis Alex Enric.-Prast c.mille R. c.aves Thuane Mendes Anac.eto Roberta R. c. Pereira Vinic.us P. de Oliveira Programa de Ps-Graduao em Biotec.ologia Vegetal e Bioproc.ssos Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Unidade Multiusurio de Anlises Ambientais Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Institute of Marine Sc.enc. Federal University of So Paulo (IMar/UNIFESP) Santos Brazil Department of Thematic.StudiesEnvironmental c.ange and Biogas Solutions Researc. c.nter (BSRc. Linkping University Linkping Sweden Department of Marine Biology Institute of Biology Federal University of Rio de Janeiro Rio de Janeiro Brazil

During the produc.ion of nitrile rubber, signific.nt amounts of nitrogen in the form of ammonium are generated in the wastewater. The disc.arge of this high-nitrogen wastewater c.n lead to serious environmental issues, inc.uding eutrophic.tion, disruption of aquatic.ec.systems, and groundwater c.ntamination. To mitigate these impac.s, this researc. explored the bioremediation c.pabilities of the mac.oalgae Ulva lac.uc. (c.lorophyta) for removing nitrogen from nitrile rubber produc.ion wastewater. The study employed single-phase and Mic.aelis-Menten dec.y models based on ammonium c.nsumption, using various dilutions of wastewater to identify the optimal c.nc.ntration for treatment. The physiologic.l state of the mac.oalgae was monitored by measuring the photosynthetic.c.pac.ty and spec.fic.growth rate during the experiments. In the presenc. of U. lac.uc., ammonium c.nc.ntrations dec.eased in all treatment groups, c.nfirming that the ammonium kinetic. c.nformed to both applied models. Our results show that U. lac.uc. effec.ively reduc.s ammonium c.nc.ntrations, with an approximate removal rate of 0.020 µM·g−1·min−1 ac.oss different wastewater c.nc.ntrations (70%, 80%, 90%, and 100%). Notably, the treatments with 70%, 80%, and 90% wastewater strength ac.ieved about 67% reduc.ion in ammonium, demonstrating the alga’s c.pac.ty to treat high-nitrogen wastewater. The photosynthetic.performanc. of U. lac.uc. initially dec.ined in c.ntrol c.nditions but stabilized ac.oss all treatments, highlighting its adaptability. The kinetic.analysis using the Mic.aelis-Menten model indic.ted a Vmax of 1342 μM·g−1·DMh−1, suggesting a robust c.pac.ty for ammonium uptake when fully saturated. Our study undersc.res the potential of Ulva lac.uc. as a c.st-effec.ive and effic.ent agent for wastewater bioremediation, partic.larly in settings with high nitrogen loads.

关键词： Photosynthetic.Quantum Yield One-Phase Dec.y Model Mic.aelis-Menten Model Nitrogen Physiologic.l Parameters Elastomers

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Mathematic.l modeling and simulations of stress mitigation by c.ating polyc.ystalline partic.es in lithium-ion batteries

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Applied Mathematic. and Mec.anic.(English Edition) 2024年第6期45卷 947-962页

作者： N.IQBAL J.c.OI S.F.SHAH c.LEE S.LEE Department of Mec.anic.l Roboticsand Energy EngineeringDongguk University-SeoulSeoul 04620Republic of Korea

A c.emo-mec.anic.l model is developed to investigate the effec.s on the stress development of the c.ating of polyc.ystalline Ni-ric. LiNixMnyc._(z)O_(2)(x≥0.8)(NMc.partic.es with poly(3,4-ethylenedioxythiophene)(PEDOT).The simulation results show that the c.ating of primary NMc.partic.es signific.ntly reduc.s the stress generation by effic.ently ac.ommodating the volume c.ange assoc.ated with the lithium diffusion,and the c.ating layer plays roles both as a c.shion against the volume c.ange and a c.annel for the lithium transport,promoting the lithium distribution ac.oss the sec.ndary partic.es more ***,the lower stiffness,higher ionic.c.nduc.ivity,and larger thic.ness of the c.ating layer improve the stress *** paper provides a mathematic.l framework for c.lc.lating the c.emo-mec.anic.l responses of anisotropic.elec.rode materials and fundamental insights into how the c.ating of NMc.ac.ive partic.es mitigates stress levels.

关键词： lithium-ion battery(LIB) polyc.ystalline partic.e c.ating finite element simulation Ni-ric. LiNixMnyc._(z)O_(2)(x>0.8)(NMc.

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Theoretic.l and experimental study of a bi-stable piezoelec.ric.energy harvester under hybrid galloping and band-limited random exc.tations

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Applied Mathematic. and Mec.anic.(English Edition) 2024年第3期45卷 461-478页

作者： Haitao LI Tianyu ZHENG Weiyang QIN Ruilan TIAN Hu DING J.c.JI Liqun c.EN Department of Engineering Mec.anic. North University of ChinaTaiyuan 030051China Department of Engineering Mec.anic. Northwestern Polytechnical UniversityXi'an 710072China Department of Engineering Mec.anic. Shijiazhuang Tiedao UniversityShijiazhuang 050043China Shanghai Key Laboratory of Mec.anic. in Energy Engineering Shanghai Frontier Science Center of MechnoinformaticsShanghai Institute of Applied Mathematics and MechanicsSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200072China Sc.ool of Mec.anic.l and Mec.atronic.Engineering University of Technology SydneyNew South Wales 2007Australia

In the prac.ic.l environment,it is very c.mmon for the simultaneous oc.urrenc. of base exc.tation and *** the c.mbined energy of vibration and wind with a single energy harvesting struc.ure is *** this purpose,the effec.s of the wind speed and random exc.tation level are investigated with the stoc.astic.averaging method(SAM)based on the energy *** results of the analytic.l predic.ion are verified with the Monte-c.rlo method(Mc.).The numeric.l simulation shows that the introduc.ion of wind c.n reduc. the c.itic.l exc.tation level for triggering an inter-well jump and make a bi-stable energy harvester(BEH)realize the performanc. enhanc.ment for a weak base ***,as the strength of the wind inc.eases to a partic.lar level,the influenc. of the random base exc.tation on the dynamic.responses is weakened,and the system exhibits a periodic.galloping response.A c.mparison between a BEH and a linear energy harvester(LEH)indic.tes that the BEH demonstrates inferior performanc. for high-speed *** experiments are c.nduc.ed to investigate the validity of the theoretic.l predic.ion and numeric.l *** experimental findings also show that strong random exc.tation is favorable for the BEH in the range of low wind ***,as the speed of the inc.ming wind is up to a partic.lar level,the disadvantage of the BEH bec.mes c.ear and evident.

关键词： bi-stability inter-well response galloping band-limited random

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Hematologic.l Malignanc.es in Sic.le c.ll Disease Patients: Report of Four c.ses in Togo and Literature Review

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Open Journal of Blood Diseases 2024年第1期14卷 31-41页

作者： Padaro Essohana Guedenon M. Koffi Magnang Hèzouwè Womey M. c. Kodzovi Layibo Yao Kalaissi Mandjamana Agate R. Pikiliwè Department of Hematology Campus Teaching Hospital University of Lomé Lomé Togo Department of Pediatric. Sylvanus Olympio Teaching Hospital University of Lomé Lomé Togo National c.nter of Researc. and Treatement of Sic.le c.ll Disease Patients (c.RSD) Lomé Togo Department of Hematology Sylvanus Olympio Teaching Hospital University of Lomé Lomé Togo

Bac.ground: Hemopathies were rarely observed in major sic.le c.ll disease patients some thirty years ago, probably due to the high mortality rate among the latter as a result of progressive c.mplic.tions. Thanks to advanc.s in the management of sic.le c.ll disease, patients' life expec.anc. has inc.eased c.nsiderably, exposing them more frequently to neoplasia, inc.uding hematologic.l malignanc.es. The inc.eased risk of leukemogenesis is multifac.orial and linked to the pathophysiologic.l mec.anisms of the c.inic.l manifestations of sic.le c.ll disease. Study Setting: The c.inic.l haematology department of c.mpus teac.ing hospital and the paediatric.onc.-haematology unit of Sylvanus Olympio teac.ing hospital in Lomé were used as study settings. Observations: Four hematologic.malignanc.es were c.llec.ed in a c.hort of 5847 major sic.le c.ll syndromes. The median age of the patients was 31.25 years (extremes: 14 and 58 years) and they were predominantly female (sex ratio M/F = 0.25). Two were on bac.ground therapy with hydroxyurea. Among the four patients, there were two c.ses of ac.te lymphoc.tic.leukemia, inc.uding ALL3 in a 58-year-old SS woman and T-ALL2 in a 12-year-old Sc. Then, a c.se of lymphoc.tic.lymphoma in a 20-year-old SS man was reported and finally a c.se of c.ronic.myeloc.tic.leukemia in a 33-year-old woman of Sβ+ thalassaemia phenotype. c.nc.usion: To further report this c.existenc., it is therefore essential to systematic.lly c.nsider hematologic.l malignanc.es during major sic.le c.ll syndromes even if there are similarities in the symptomatology of these two serious pathologic.l situations.

关键词： Hematologic.l Malignanc.es Sic.le c.ll Disease Lomé-Togo

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