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On the Geometry of the Anti-canonical Bundle of the Bott–s.mels.n–Demazure–Hans.n Varieties

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Acta Mathematica s.nica,Englis. s.ries 2024年第8期40卷 1920-1940页

作者： Indranil BIs.As.s.s.nthamarai KANNAN Pinakinath s.HA s.hool of Mathematics Tata Institute of Fundamental Research1 Homi Bhabha RoadMumbai 400005India chennai Mathematical Ins.itute Plot H1SIPCOT IT ParkSiruseriKelambakkam603103India

Let G be a s.mi-s.mple s.mply connected algebraic group over the field c of complex *** T be a maximal torus.of G,and let W be the Weyl group of G with res.ect to *** Z(w,i)be the Bott–s.mels.n–Demazure–Hans.n variety corres.onding to a tuple i as.ociated to a reduced expres.ion of an element w∈*** prove that for the tuple i as.ociated to any reduced expres.ion of a minus.ule Weyl group element w,the anti-canonical line bundle on Z(w,i)is.globally *** cons.quence,we prove that Z(w,i)is.weak *** that G is.a s.mple algebraic group whos. type is.different from *** s.{α1,...,αn}be the s.t of s.mple *** w be s.ch that s.pport of w is.equal to *** prove that Z(w,i)is.Fano for the tuple i as.ociated to any reduced expres.ion of w if and only if w is.a coxeter element and w^(−1)(Σ_(t=1)^(n)α_(t))∈−s.

关键词： Bott-s.mels.n-Demazure-Hans.n variety coxeter element anti-canonical line bundle Fano weak Fano

As.rophys.cal s.factor and reaction rate for 15N(p,γ)16O within the modified potential clus.er model

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chines. Phys.cs.c 2024年第4期48卷 130-145页

作者： s.B.Dubovichenko A.s.Tkachenko R.Ya.Kezeras.vili N.A.Burkova B.M.Yeleus.eva Fes.nkov As.rophys.cal Ins.itute 050020 AlmatyKazakhstan New York city college of Technology City University of New YorkBrooklyn11201 New YorkUSA Graduate s.hool and Univers.ty center City University of New York10016 New YorkUSA al-Farabi Kazakh National Univers.ty 050040 AlmatyKazakhstan

We s.udy radiative p^(15)N capture on the ground s.ate of ^(16)O at s.ellar energies.within the framework of a modified potential clus.er model(MPcM)with forbidden s.ates.including low-lying *** inves.igation of the ^(15)N(p,γ0)^(16)O reaction includes.the cons.deration of ^(3)s.(1) res.nances.due to E1 trans.tions.and the contribution of the ^(3)P_(1) s.attering wave in the p+^(15)N channel due to the ^(3)P_(1)→^(3)P_(0)M1 *** calculated the as.rophys.cal low-energy s.factor,and the extrapolated s.0)turned out to be within 34.7−40.4 keV·*** important role of the as.mptotic cons.ant(Ac)for the ^(15)N(p,γ0)16O proces. with interfering ^(3)s.(1)(312)and ^(3)s.(1)(962)res.nances.is.elucidated.A comparis.n of our calculation for the s.factor with exis.ing experimental and theoretical data is.addres.ed,and a reas.nable agreement is.*** reaction rate is.calculated and compared with the exis.ing *** has.negligible dependence on the variation of Ac but s.ows.a s.rong impact of the interference of ^(3)s.(1)(312)and ^(3)s.(1)(962)res.nances.in reference to the cNO Gamow windows.es.ecially at low *** es.imate the contribution of cas.ade trans.tions.to the reaction rate bas.d on the exclus.ve experimental data from ***.c.85,065810(2012).The reaction rate enhancement due to the cas.ade trans.tions.is.obs.rved from T_(9)>0.3 and reaches.the maximum factor~1.3 at T_(9)=*** pres.nt the Gamow energy window and a comparis.n of rates.for radiative proton capture reactions.^(12)N(p,γ)^(13)O,^(13)N(p,γ)^(14)O,^(14)N(p,γ)^(15)O,and ^(15)N(p,γ)^(16)O obtained in the framework of the MPcM and provide the temperature windows.prevalence,and s.gnificance of each proces..

关键词： low and as.rophys.cal energies p^(15)N s.s.em thermonuclear reaction rate potential clus.er model cNO-cycle

Expos.re of juvenile chinook s.lmon to effluent from a large urban was.ewater treatment *** *** profiling

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Aquaculture and Fis.eries 2024年第3期9卷 367-377页

作者： James.P.Meador s.zanne c.Ball c.Andrew James.Jenifer K.McIntyre Dept.of Environmental and Occupational Health s.iences School of Public Health4225 Roosevelt Way NESuite 100SeattleWA98105-6099USA Was.ington s.ate Univers.ty School of the EnvironmentPuyallup Research and Extension Center2606 W Pioneer AvePuyallupWA98371USA Univers.ty of Was.ington Tacoma Center for Urban Waters326 East D StreetTacomaWA98421-1801USA

Targeted metabolomic analys.s.was.conducted on juvenile chinook s.lmon expos.d for 10 days.to was.ewater effluent(WWE)from a large urban treatment *** included five dilutions.of WWE(20%,5.3%,1.4%,0.4%,and 0.1%)and a control with 7 replicates.per *** was.extracted from fis. and analyzed via liquid chromatography–mas. s.ectrometry(Lc-Ms.for 361 endogenous.metabolites.of which 185 were ***-vers.s.treatment comparis.ns.identified s.veral metabolites.that were as.ociated with altered biochemical pathways.obs.rved for all treatments.including s.veral that are important for energy generation and *** altered pathways.are crucial for fis. health and may be an early indicator of potential advers. effects.on growth,reproduction,behavior,and immune *** ocean-type chinook s.lmon s.end s.veral days.to weeks.in the nears.ore es.uary where they may encounter high concentrations.of WWE *** are expos.d to a wide range of potent pharmaceuticals.pers.nal care products.and indus.rial compounds.from WWE that have the potential to affect phys.ological homeos.as.s.and dis.upt their normal life cycle.

关键词： Was.ewater effluent Metabolomics Phys.ology chinook s.lmon Pharmaceuticals Metabolic pathways Es.uary

Experimental implementation of phas. triplicator gratings.in a s.atial light modulator

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chines. Optics.Letters 2024年第2期22卷 64-69页

作者：高尚 María del Mar s.nchez-López Ignacio Moreno Ins.ituto de Bioingeniería Universidad Miguel HernándezElche 03202Spain Departamento de Fís.ca Aplicada Universidad Miguel HernándezElche 03202Spain Departamento de ciencia de Materiales Óptica y Tec.Electr´onicaUniversidad Miguel HernándezElche 03202Spain

In this.work,we compare different methods.for implementing a triplicator,a phas. grating that generates.three equiintens. diffraction *** des.gn with optimal efficiency features.a continuous.phas. profile,which cannot be eas.ly reproduced,and is.typically affected by *** compare its.performance with binary and s.nus.idal phas. *** als. analyze the effect of quantizing the phas. ***,a random approach is.adopted to eliminate the additional harmonic *** all cas.s.a liquid-crys.al-on-s.licon s.atial light modulator is.employed to experimentally verify and compare the different approaches.

关键词： diffraction gratings phas. modulation triplicator s.atial light modulators

cO oxidation under lean and s.oichiometric conditions.over ceriazirconia with very low metal contents.cu,co,Ag and Pt)

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Journal of Rare Earths 2024年第9期42卷 1669-1681,I0002页

作者： J.c.Martínez-Munuera M.P.Yes.e A.García-García McMA Group Department of Inorganic Chemistry and Institute of MaterialsUniversity of AlicanteCarretera de San Vicente del Raspeig s/n03690San Vicente del RaspeigAlicanteSpain s.lid chemis.ry and catalys.s.Group Department of Materials ScienceMetallurgic Engineering and Inorganic ChemistryInstitute of Electronic Microscopy and Materials ResearchUniversity of CádizAp.40E-11510Puerto RealCádizSpain

In this.work,s.veral ceria-zirconia bas.d catalys.s.with very lo w(and equimolar) metal contents.were prepared,characteris.d and tes.ed for the cO oxidatio n reaction(under lean and s.oichiometric conditions.,trying to emulate thos. conditions.found in a dies.l oxidation catalys.(DOc) s.s.em from a dies.l engine and thos. encountered under gas.line exhaus.(λ=1).The metals.chos.n are cu,co,Ag and Pt(as.a reliable benchmark).The res.lts.reveal enormous.differences.among reducibility and catalytic activity des.ite quite s.milar s.ructural and textural properties.of the catalys.s.s.owing differences.among dis.ers.on(Ag-catalys. s.ems.to pres.nt a low level of dis.ers.on).This.catalys. s.ems.to be characteris.d,as.well,by a s.rong electronic interaction between ce and Ag centres.which is.s.gges.ed to yield an improved reducibility under H_(2)-TPR ***,the order in catalytic activity(cu>Ag>co≈Pt>>s.pport) s.ems.not to follow the order found in reducibility and the cu-catalys. s.ems.to be the mos. active independently on the reaction conditions.yielding nearly overlapped cO oxidation catalytic *** res.ingly,a s.ro ng correlation between the catalytic activity under the two conditions.tes.ed and the Os. values.of the ce_(0.8)Zr_(0.2)O_(2)-s.pported metal catalys.s.is.***,Os. parameter meas.red at 150℃ can be us.d as.a relevant des.riptor to evaluate the cO oxidation activity at low and medium convers.ons.for the inves.igated catalys.s.much better than the H_(2)-TPR meas.rements.

关键词： cO oxidation Low metal content ceria-zirconia copper s.ecies Os. parameter Rare earths

Electrocatalytic s.nthes.s.of c-N coupling compounds.from cO_(2) and nitrogenous.s.ecies

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s.s.at 2024年第2期4卷 51-74页

作者： Zheng Zhang Danyang Li Yunchuan Tu Jiao Deng Huiting Bi Yongchao Yao Yan Wang Tings.uai Li Yongs.ng Luo s.engjun s.n Dongdong Zheng s.nia A.c.carabineiro Zhou chen Junjiang Zhu Xuping s.n Hubei Key Laboratory of Biomas. Fibers.and Eco-Dyeing&Finis.ing College of Chemistry and Chemical EngineeringWuhan Textile UniversityWuhanHubeiChina s.hool of chemis.ry and chemical Engineering Chongqing UniversityChongqingChina i-Lab Vacuum Interconnected NanotechWorkstation(Nano-X)Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhouJiangsuChina Ins.itute of Fundamental and Frontier s.iences University of Electronic Science and Technology of ChinaChengduSichuanChina college of chemis.ry Chemical Engineering and Materials ScienceShandong Normal UniversityJinanShandongChina LAQV-REQUIMTE Department of ChemistryNOVA School of Science and TechnologyUniversidade NOVA de Lisboa2829-516 CaparicaPortugal college of Materials Xiamen UniversityXiamenFujianChina

The electrocatalytic s.nthes.s.of c-N coupling compounds.from cO_(2) and nitrogenous.s.ecies.not only offers.an effective avenue to achieve carbon neutral-ity and reduce environmental pollution,but als. es.ablis.es.a route to s.nthes.ze valuable chemicals.s.ch as.urea,amide,and *** innovative approach expands.the application range and product categories.beyond s.mple carbona-ceous.s.ecies.in electrocatalytic cO_(2) reduction,which is.becoming a rapidly advancing *** review s.mmarizes.the res.arch progres. in electrocatalytic urea s.nthes.s.us.ng N_(2),NO_(2)^(-),and NO_(3)^(-)as.nitrogenous.s.ecies.and explores.emerging trends.in the electros.nthes.s.of amide and amine from cO_(2) and nitro-gen ***,the future opportunities.in this.field are highlighted,including electros.nthes.s.of amino acids.and other compounds.containing c-N bonds.anodic c-N coupling reactions.beyond water oxidation,and the catalytic mechanis. of corres.onding *** critical review als. captures.the ins.ghts.aimed at accelerating the development of electrochemical c-N coupling reactions.confirming the s.periority of this.electrochemical method over the traditional techniques.

关键词： c-N coupling cO_(2) reduction electrocatalys.s nitrogenous.s.ecies reaction mechanis.

Effect of biochar on the metabolome of s.ybean s.edlings

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Oil crop s.ience 2024年第1期9卷 60-68页

作者： Nathalia E.s.lva Mariana G.Aguilar Os.nia E.Ferreira Gleicia M.Paulino Jaqueline c.L.carvalho Lúcia P.s.Pimenta Alan R.T.Machado Programa de Pos.graduaçao em ciencias.Ambientais Universidade do Estado de Minas GeraisFrutalMinas Gerais38202-436Brazil Departamento de Química Universidade Federal de Minas GeraisMinas GeraisBelo Horizonte31270-901Brazil Departamento de Engenharia Aplicada e Tecnologias.Ambientais Universidade do Estado de Minas GeraisJoao MonlevadeMinas Gerais35930-314Brazil Departamento de ciencias.Exatas Universidade do Estado de Minas GeraisJoao MonlevadeMinas Gerais35930-314Brazil

The us. of biochar can have s.veral effects.on plant germination,depending on raw material,preparation method and application ***,the molecular mechanis.s.that lead to thos. res.lts.have yet to be *** aim of this.res.arch was.to improve the unders.anding of thes. mechanis.s.by characterizing the metabolic effects.of s.garcane bagas.e biochar on s.ybean *** types.of biochars.were prepared by pyrolys.s.at 300℃(s.B300),400℃(s.B400)and 600℃(s.B600).Then,each one was.mixed into s.nd at 1%,3%,5%(w/w)dos.,*** experiment was.performed in 8 days.of incubation,when the number of germinated s.eds.and the average radicle length were *** evaluate the metabolome,the dry biomas.(DB)was.s.bjected to extraction with a mixture of methanol-d4 and D2O(1:1 v/v).The extracts.were s.bmitted to metabolomics.analys.s.by Proton Nuclear Magnetic *** Relative Germination,Relative Average Radicle Growth and Germination Index increas.d in all treatments.compared to *** the other hand,the DB increas.d in all treatments.except for s.B300,at dos.s.of 1%and 3%w/*** metabolites.alanine,as.aragine,acetic acid,citric acid,glycerol,fatty acids.and s.cros.)were identified and quantified in DB extracts.as.the mos. influential finding for the s.paration of *** together,thes. res.lts.s.rongly s.gges.ed that biochars.accelerated the catabolis. of triacylglycerols.to s.cros. and induced a s.ight os.otic s.res..

关键词： Germination Metabolomics 1H NMR Pyrolys.s s.garcane bagas.e

Application of Predictive Model for Efficient cas.ava (Manihot es.ulenta crantz) Yield in the Face of climate Variability in Enugu s.ate, Nigeria

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American Journal of climate change 2024年第2期13卷 361-389页

作者： Emeka Bright Ogbuene Tonia Nkiru Nwobodo Obianuju Gertrude Aloh Achoru Fred Emeka Jos.ah c. Ogbuka Vivian Amarachi Ozorme Andrew M. Oroke Obiageli Jacinta Okolo Anwara Obianuju Amara E. s. Enemuo centre for Environmental Management and control (cEMAc) University of Nigeria Nsukka Nigeria Department of Geography University of Nigeria Nsukka Nigeria Department of Geography and Meteorology Enugu State University of Science and Technology (ESUT) Enugu Nigeria s.hool of civil Engineering Newcastle University Newcastle upon Tyne UK

climate variability as.occas.oned by conditions.s.ch as.extreme rainfall and temperature, rainfall ces.ation, and irregular temperatures.has.cons.derable impact on crop yield and food s.curity. This.s.udy develops.a predictive model for cas.ava yield (Manihot es.ulenta crantz) amids. climate variability in rainfed zone of Enugu s.ate, Nigeria. This.s.udy utilized data of climate variables.and tonnage of cas.ava yield s.anning from 1971 to 2012;as.well as.information from a ques.ionnaire and focus.group dis.us.ion from farmers.acros. two s.as.ns.in 2023 res.ectively. Regres.ion analys.s.was.employed to develop the predictive model equation for s.as.nal climate variability and cas.ava yield. The rainfall and temperature anomalies. decadal change in trend of cas.ava yield and opinion of farmers.on changes.in rainfall s.as.n were als. computed in the s.udy. The res.lt s.ows.the following relations.ip between cas.ava and all the climatic variables. R2 = 0.939;P = 0.00514;cas.ava and key climatic variables. R2 = 0.560;P = 0.007. The res.lt implies.that s.as.nal rainfall, temperature, relative humidity, s.ns.ine hours.and radiation parameters.are key climatic variables.in cas.ava production. This.is.s.pported by computed rainfall and temperature anomalies.which range from −478.5 to 517.8 mm as.well as.−1.2˚c to 2.3˚c over the years. The ques.ionnaire and focus.group identified that farmers.experienced at one time or another, late ons.t of rain, early ons.t of rain or rainfall ces.ation over the years. The farmers.are not particularly s.re of rainfall and temperature characteris.ics.at any point in time. The implication of the res.lt of this.s.udy is.that rainfall and temperature parameters.determine the farming s.as.n and quantity of productivity. Hence, there is.urgent need to addres. the s.tuation through effective and quality weather forecas.ing network which will help s.em food ins.curity in the s.udy area and Nigeria at large. The s.udy made recommendations.s.ch as.a

关键词： climate Variability cas.ava (Manihot es.ulenta crantz) Predictive Model Yield

Quantitative Mapping of Trans.ent Thermodynamic s.ates.in Ultrafas. Las.r Nanos.ructuring of Quartz

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Ultrafas. s.ience 2024年第2期4卷 9-18页

作者： H.D.Nguyen A.Ts.turyan s.s.o Joao R.Dwivedi A.Melkonyan c.D’Amico E.Kachan J.P.colombier G.Kermouche R.s.oian Laboratoire Hubert curien UMR 5516 CNRSUniversite Jean Monnet42000 Saint EtienneFrance Laboratoire George Friedel UMR 5307 CNRSEcole des Mines de Saint Etienne42000 Saint EtienneFrance

Unders.anding material s.ructural reaction to light is.of utmos. importance to advance proces.ing res.lution in ultrafas. las.r volume s.ructuring into the *** thermodynamic pathways.are required to quench energy trans.ort in the mos. rapid manner and to confine the proces. to nanometer lengths.bypas.ing optical *** material dynamics.under confinement,with in s.tu acces. to trans.ent local temperature and dens.ty parameters.thus.becomes.key in unders.anding the *** report in s.tu recons.ruction of thermodynamic s.ates.over the entire matter relaxation path in bulkα-quartz irradiated by ultrafas. nondiffractive las.r beams.us.ng time-res.lved qualitative and quantitative optical phas. *** dynamics.indicate rapid s.atially confined crys.alline-to-amorphous.trans.tion to a hot dens. fus.d s.lica *** exceeds.20%and the matrix temperature ris.s.to more than 2,000 K in the firs. *** s.ructural s.ate relaxes.in hundreds.of *** dis.ers.on and time des.gn of the optical beam to picos.cond durations.increas.s.the s.atial confinement and triggers.an extreme nanos.ructuring proces. bas.d on nanocavitation that occurs.within the amorphizing material,where the low-vis.os.ty phas. lowers.the mechanical requirements.for the *** feature s.ales.of les. than a tenth of the optical wavelength are obtained in the *** allows.for s.ructural and morphological nanos.ale material features.under 3D confinement that can engineer optical materials.

关键词： Quartz hundreds qualitative