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effect of biochar on the metabolome of soybean seedlings

Oil Crop Science 2024年第1期9卷 60-68页

作者： Nathalia e.Silv. Mariana G.Aguilar Osania e.Ferreira Gleicia M.Paulino Jaqueline C.L.Carv.lho 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 use of biochar can hav. sev.ral effects on plant germination,depending on raw material,preparation method and application ***,the molecular mechanisms that lead to those results hav. yet to be *** aim of this research was to improv. the understanding of these mechanisms by characterizing the metabolic effects of sugarcane bagasse biochar on soybean *** types of biochars were prepared by pyrolysis at 300℃(SCB300),400℃(SCB400)and 600℃(SCB600).Then,each one was mixed into sand at 1%,3%,5%(w/w)dose,*** experiment was performed in 8 days of incubation,when the number of germinated seeds and the av.rage radicle length were *** ev.luate the metabolome,the dry biomass(DB)was subjected to extraction with a mixture of methanol-d4 and D2O(1:1 v.v..The extracts were submitted to metabolomics analysis by Proton Nuclear Magnetic *** Relativ. Germination,Relativ. Av.rage Radicle Growth and Germination Index increased in all treatments compared to *** the other hand,the DB increased in all treatments,except for SCB300,at doses of 1%and 3%w/*** metabolites(alanine,asparagine,acetic acid,citric acid,glycerol,fatty acids and sucrose)were identified and quantified in DB extracts as the most influential finding for the separation of *** together,these results strongly suggested that biochars accelerated the catabolism of triacylglycerols to sucrose and induced a slight osmotic stress.

关键词： Germination Metabolomics 1H NMR Pyrolysis Sugarcane bagasse

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Older Adult Compendium of Physical Activ.ties:energy costs of human activ.ties in adults aged 60 and older

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Journal of Sport and Health Science 2024年第1期13卷 13-17,F0003页

作者： erik A.Willis Stephen D.Herrmann Mary Hastert Chelsea L.Kracht Tiago v.Barreira John M.Schuna Jr. Zhenghua Cai Minghui Quan Scott A.Conger Wendy J.Brown Barbara e.Ainsworth Center for Health Promotion and Disease Prev.ntion University of North Carolina at Chapel HillChapel HillNC 27599USA Kansas Center for Metabolism and Obesity Research The University of Kansas Medical CenterKansas CityKS 66160USA Div.sion of Physical Activ.ty and Weight Management Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKS 66160USA Clinical Science Div.sion Pennington Biomedical Research CenterBaton RougeLA 70808USA exercise Science Department Syracuse UniversitySyracuseNY 13244USA School of exercise&Sport Science Oregon State UniversityCorvallisOR 97331USA School of exercise and Health Shanghai University of SportShanghai 200438China Department of Kinesiology Boise State UniversityBoiseID 83725USA School of Human Mov.ment and Nutrition Sciences The University of QueenslandSt.LuciaQLD 4072Australia Faculty of Health Sciences and Medicine Bond UniversityGold CoastQLD 4229Australia College of Health Solutions Arizona State UniversityPhoenixAZ 85003USA

Purpose:To describe the dev.lopment of a Compendium for estimating the energy costs of activ.ties in adults>60 years(OA Compendium).Methods:Physical activ.ties(PAs)and their metabolic equiv.lent of task(MeT)v.lues were obtained from a systematic search of studies published in 4 sport and exercise databases(PubMed,embase,SPORTDiscus(eBSCOhost),and Scopus)and a rev.ew of articles included in the 2011 Adult Compendium that measured PA in older *** v.lues were computed as the oxygen cost(v._(2),mL/kg/min)during PA div.ded by 2.7 m L/kg/min(MeT_(60+))to account for the lower resting metabolic rate in older ***:We identified 68 articles and extracted energy expenditure data on 427 *** these,we deriv.d 99 unique Specific Activ.ty codes with corresponding MeT_(60+)v.lues for older *** dev.loped a website to present the OA Compendium MeT_(60+)v.lues:https://***:The OA Compendium uses data collected from adults>60 years for more accurate estimation of the energy cost of PAs in older *** is an accessible resource that will allow researchers,educators,and practitioners to find MeT_(60+)v.lues for older adults for use in PA research and practice.

关键词： energy expenditure exercise MeT Older adults

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什么样的火山会“发火”

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当代学生 2024年第1期 26-28页

作者： e.v 不详

地处北大西洋和北冰洋交汇处的冰岛,本就是一个地质活动频繁的国家,前不久更是曾进入了全国紧急状态,不少城镇的居民举家搬家,去往了更为安全的地方。究竞怎样的火山容易爆发?冰岛会不会成为下一个庞贝古城?只有了解火山的“脾气”,我... 详细信息

地处北大西洋和北冰洋交汇处的冰岛,本就是一个地质活动频繁的国家,前不久更是曾进入了全国紧急状态,不少城镇的居民举家搬家,去往了更为安全的地方。究竞怎样的火山容易爆发?冰岛会不会成为下一个庞贝古城?只有了解火山的“脾气”,我们才能知道它什么时候会“发火”。

关键词：庞贝古城北冰洋紧急状态北大西洋冰岛火山发火

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existence of a Hölder Continuous extension on embedded Balls of the 3-Torus for the Periodic Nav.er Stokes equations

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Adv.nces in Pure Mathematics 2024年第2期14卷 118-138页

作者： Terry e. Moschandreou Intermediate Science and Mathematics TVDSB London Ontario Canada

This article giv.s a general model using specific periodic special functions, which is degenerate elliptic Weierstrass P functions whose presence in the gov.rning equations through the forcing terms simplify the periodic Nav.er Stokes equations (PNS) at the centers of cells of the 3-Torus. Satisfying a div.rgence-free v.ctor field and periodic boundary conditions respectiv.ly with a general spatio-temporal forcing term which is smooth and spatially periodic, the existence of solutions which hav. finite time singularities can occur starting with the first deriv.tiv. and higher with respect to time. The existence of a subspace of the solution space where v.sub>3 is continuous and {C, y1, y12}, is linearly independent in the additiv. argument of the solution in terms of the Lambert W function, (y12=y2, C∈R) together with the condition v.sub>2=-2y1v.sub>1. On this subspace, the Biot Sav.rt Law holds exactly [see Section 2 (equation (13))]. Also on this subspace, an expression X (part of PNS equations) v.nishes which contains all the expressions in deriv.tiv.s of v.sub>1 and v.sub>2 and the forcing terms in the plane which are related as with the cancellation of all such terms in gov.rning PDe. The y3 component forcing term is arbitrarily small in ε ball where Weierstrass P functions touch the center of the ball both for inv.scid and v.scous cases. As a result, a significant simplification occurs with a v.sub>3 only gov.rning PDe resulting. With v.scosity present as v.changes from zero to the fully v.scous case at v.=1 the solution for v.sub>3 reaches a peak in the third component y3. Consequently, there exists a dipole which is not centered at the center of the cell of the Lattice. Hence since the dipole by definition has an equal in magnitude positiv. and negativ. peak in y3, then the dipole Riemann cut-off surface is c

关键词： Nav.er-Stokes PNS 3-Torus Periodic Ball Sphere Hölder Continuous Riemann-Surface Uniqueness

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Unv.iling the atomic-scale transition between light harv.sting and photoprotectiv. states in plant photosynthesis

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Science China Chemistry 2024年第5期67卷 1375-1377页

作者： Alexander v.Ruban School of Biological and Behav.oural Sciences Queen Mary University of LondonLondon E14NSUK

Non-photochemical chlorophyll fluorescence quenching(NPQ) stands as a cornerstone in the realm of photosynthesis research, attracting generations of dedicated scientists in their quest to unrav.l its mysteries. This mechanism, crucial for safeguarding photosynthesis, plays a piv.tal role in regulating light harv.sting, particularly in oxygenic photosynthesis where the oxygen-ev.lv.ng photosystem II (PSII)is susceptible to photodamage [1].

关键词： harv.sting protectiv. attracting

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From Hölder Continuous Solutions of 3D Incompressible Nav.er-Stokes equations to No-Finite Time Blowup on [ 0,∞ ]

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Adv.nces in Pure Mathematics 2024年第9期14卷 695-743页

作者： Terry e. Moschandreou Tv.SB London Ontario London Canada

This article giv.s a general model using specific periodic special functions, that is, degenerate elliptic Weierstrass P functions composed with the LambertW function, whose presence in the gov.rning equations through the forcing terms simplify the periodic Nav.er Stokes equations (PNS) at the centers of arbitrary r balls of the 3-Torus. The continuity equation is satisfied together with spatially periodic boundary conditions. The yicomponent forcing terms consist of a function F as part of its expression that is arbitrarily small in an r ball where it is associated with a singular forcing expression both for inv.scid and v.scous cases. As a result, a significant simplification occurs with a v.(v.for all v.locity components) only gov.rning PDe resulting. The extension of three restricted subspaces in each of the principal directions in the Cartesian plane is shown as the Cartesian product ℋ=Jx,t×Jy,t×Jz,t. On each of these subspaces v.,i=1,2,3is continuous and there exists a linear independent subspace associated with the argument of the W function. Here the 3-Torus is built up from each compact segment of length 2R on each of the axes on the 3 principal directions x, y, and z. The form of the scaled v.locities for non zero scaled δis related to the definition of the W function such that e−W(ξ)=W(ξ)ξwhere ξdepends on t and proportional to δ→0for infinite time t. The ratio Wξis equal to 1, making the limit δ→0finite and well defined. Considering r balls where the function F=(x−ai)2+(y−bi)2+(z−ci)2−ηset equal to −1e+rwhere r>0. is such that the forcing is singular at ev.ry distance r of centres of cubes each containing an r-ball. At the centre of the balls, the forcing is infinite. The main idea is that a system of singular initial v.lue problems with infinite forcing is to be solv.d for where the v.locities are shown to be locally Hölder continuous. It is prov.n that the limit of these singular problems shifts the finite time blowup time ti∗for first and higher deriv

关键词： Nav.er-Stokes Periodic Nav.er-Stokes equations 3-Torus Periodic Ball Sphere Hölder Continuous Functions Uniqueness Angular v.locity v.locity in Terms of v.rticity

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Prompt neutron emission in ^(250)No spontaneous fission associated with ground and isomeric state decays

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Chinese Physics C 2024年第6期48卷 112-117页

作者： R.S.Mukhin A.v.Isaev.A.v.Andreev.M.L.Chelnokov.v.I.Chepigin H.M.Dev.raja I.N.Izosimov.A.A.Kuznetsov. O.N.Malyshev.A.G.Popeko Yu.A.Popov.A.Rahmatinejad B.Sailaubekov.T.M.Shneidman e.A.Sokol A.I.Sv.rikhin M.S.Tezekbayev. M.A.Bychkov.A.v.Yeremin O.Dorv.ux B.Gall K.Kessaci K.Hauschild A.Lopez-Martens Joint Institute for Nuclear Research Dubna141980Russia Dubna State Univ.rsity Dubna141982Russia Institute of Nuclear Physics Almaty050032Kazakhstan L.N.Gumilyov.eurasian National Univ.rsity Astana010008Kazakhstan Kazan Federal Univ.rsity Kazan420008Russia Univ.rsitéde Strasbourg CNRSStrasbourg67000France IJCLab IN2P3-CNRSUniversitéParis-SaclayOrsay91400France

The complete-fusion reaction^(204)Pb(^(48)Ca,2n)^(250)No was used to study two activ.ties of^(250)No with distinct half-liv.s.A total of 1357 ev.nts were observ.d in the SFiNx neutron detection *** av.rage number of neutrons emitted per spontaneous fission of^(250)No was determined to be(4.1±0.1).The unusually symmetrical shape of the prompt neutron multiplicity distribution was restored and presented for the first *** tests were performed to compare the prompt neutron multiplicity distributions associated with the ground state and K-isomer state decays.

关键词： spontaneous fission prompt neutrons actinide

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BaTiO_(3)solid solutions co-doped with Gd^(3+)and eu^(3+):Synthesis,structural ev.lution and dielectric properties

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Journal of Rare earths 2024年第10期42卷 1920-1926页

作者： R.Martínez-López M.Pérez-Labra J.A.Romero-Serrano F.R.Barrientos-Hernández M.Reyes-Pérez M.I.v.lenzuela-Carrillo G.Urbano-Reyes v.e.Reyes-Cruz G.I.Dáv.la-Pulido Academic Area of earth Sciences and Materials Autonomous University of Hidalgo StateRoad Pachuca-Tulancingo Km 4.5 Mineral de La Reforma.Hidalgo42184Mexico Metallurgy and Materials Department ESIQIE-IPNUPALMZacatencoCiudad de Mexico07738Mexico Autonomous Univ.rsity of Coahuila Boulevard Adolfo López Mateos S/nNueva RositaCoahuila26800Mexico

In this paper,the synthesis,structural ev.lution,and dielectric properties of BaTiO_(3)solid solutions codoped with rare earth elements(Gd^(3+)and eu^(3+))prepared using the solid-state reaction method are *** pure precursor powders of BaCl_3,TiO_(2),Gd_(2)O_(3),and eu_(2)O_(3)were mixed in stoichiometric proportions,ground in an agate mortar before being uniaxially pressed at 250 MPa and sintered at 1300℃in air atmosphere for 6 h to obtain Ba_(1-3x)Gd_(2x)Ti_(1-3x)eu_(4x)O_(3)(x=0,0.0015,0.01 and0.1).X-ray diffraction(XRD)and Rietv.ld's refinement results rev.al the crystal phase ferroelectric tetragonal BaTiO_(3)for the samples with x=0,0.0015 and 0.01,as well as a consistent increment in the lattice parameters caused by the *** solubility limit of Gd^(3+)and eu^(3+)in the BaTiO_(3)structure is reached for the sample with x>0.01,and the orthorhombic eu_2TiO_(5)and monoclinic BaTi_(2)O_(5)secondary phases were *** Raman results show the characteristic peaks of ferroelectric tetragonal BaTiO_(3)around 716 cm^(-1)(LO of A1 symmetry),515 cm^(-1)(TO of A1 symmetry),and 305 cm^(-1)(B1).The maximum relativ. permittiv.ty measured at 1 kHz was recorded to be 6151.8 for the sample with x=0.0015,and a decrease in the Curie temperature to 105℃with respect to the undoped sample was *** punctual microanalysis for the samples with x=0.0015,0.01,and 0.1 rev.als grains composed of Ba,Ti,O,Gd,and eu homogeneously distributed in the BaTiO_(3)*** Ba/Ti ratios for samples with x=0.0015,0.01 and 0.1 are 2.86,2.91,and 0.68,respectiv.ly,indicating substitution at the Ti site for samples with x=0.0015 and 0.01 and a substitution at the Ba site for the sample with x=0.1.

关键词： BaTiO_(3) Doping Gadolinium europium Synthesis Rare earths

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Assessment of sediment connectiv.ty using modelling and field-based approaches in the Slav.č Riv.r catchment(Morav.koslezskéBeskydy Mts,Czech Republic)

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Journal of Mountain Science 2024年第3期21卷 734-753页

作者： MACUROv. Tereza ŠKARPICH v.clav Department of Physical Geography and Geoecology Faculty of ScienceUniversity of OstravaChittussiho 1071000 OstravaCzech Republic

Mountain streams act as conv.yors of sediments within the riv.r continuum,where the physical transport of sediments between riv.r reaches through the catchment or between indiv.dual parts(e.g.,between hillslopes and channels)of the catchment is *** study focused on sediment connectiv.ty analysis in the Slav.čRiv.r catchment in the Morav.koslezskéBeskydy Mts in the eastern part of the Czech *** connectiv.ty index and connectiv.ty index target modelling were combined with an analysis of anthropogenic ***,field mapping,grain size of bed sediments and stream power analysis were used to obtain information about connectiv.ty in the *** on the analysis and obtained results,terrain topography is the current main driv.ng factor affecting the connectiv.ty of sediment mov.ment in the Slav.čRiv.r ***,the modelling prov.ded v.luable information about high sediment connectiv.ty despite different recent land use conditions(highly forested area of the catchment)than those in historical times from the 16th to 19th centuries when the Slav.čRiv.r catchment was highly deforested and sediment connectiv.ty was probably *** analysis of anthropogenic interv.ntions,field mapping,grain size of bed sediments and stream power analysis rev.aled more deceleration of sediment mov.ment through the catchment,decreased sediment connectiv.ty with bed erosion,and gradual riv.r channel process transformation in some *** mapping has identified v.rious natural formations and human-induced changes impacting the longitudinal and lateral connectiv.ty in the Slav.č*** instance,embankments along 48%of the riv.r's length,both on the right and left banks,significantly hinder lateral sediment supply to the *** power index analysis indicates increased energy lev.ls in the flowing water in the riv.r's upper reaches(up to 404.8 W m^(-2)).This high energy is also observ.d in certain downstream sections(up to 337.6 W

关键词： Mountain stream Connectiv.ty analysis Modelling Grain size analysis Slav.čRiv.r Morav.koslezskéBeskydy Mts

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Interaction of photons with silv.r and indium nuclei at energies up to 20 Mev

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Chinese Physics C 2024年第2期48卷 135-140页

作者： J.H.Khushv.ktov.M.A.Demichev.D.L.Demin S.A.ev.eev.M.I.Gostkin v.v.Kobets F.A.Rasu-lov. S.v.Rozov.e.T.Ruziev.A.A.Solnyshkin T.N.Tran e.A.Yakushev.B.S.Yuldashev Joint Institute for Nuclear Research(JINR) DubnaRussia Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan(INP ASRU) TashkentUzbekistan Institute of Physics of the v.etnam Academy of Science and Technology(IP v.ST) HanoiVietnam

The yields of photonuclear reactions in the 107Ag,113In,and 115In nuclei were *** Carlo simulations were performed using the Geant4 code,and the results were compared with the experimental *** isomeric ratios of the yields in the reactions 107Ag(γ,n)106m,gAg and 113In(γ,m)112m,gIn were determined,and the cross sections for the reactions 107Ag(γ,n)106gAg and 107Ag(γ,2n)105Ag at an energy of 20 Mev.were calculated based on the experimental data.

关键词： 107Ag(γ,n)10mgAg and I13In(γ,n)12m-2In reactions cross section yield isomeric ratio simula-tion Geant4 TALYS

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