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Modified Atmospheric Packaging and Its Effect on Postharvest Cannabis Qual.ty

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American Journal.of Pl.nt Sciences 2024年第3期15卷 222-234页

作者： l.ke l. Macl.ughl.n Mason T. MacDonal. Department of Pl.nt Food and Environmental Sciences Faculty of Agriculture Dalhousie University Halifax NS Canada

Cannabis sativa l. is used as fiber, food, and medicine in several.countries. Though it is il.egal.for recreational.use in most of the worl., there are some countries that have l.gal.zed production and sal.. There is a l.t of research on production of cannabis, but l.ss so on storage technol.gies. Cannabis contains several.high val.e compounds, such as cannabinoids and terpenoids, that are susceptibl. to degradation via l.ght, temperature, and oxygen. Several.studies have expl.red temperature and l.ght, and industry has adjusted accordingl.. However, l.ss is known about oxygen-induced degradation. Biochemical.studies have demonstrated oxidative degradation of high val.e compounds, and many producers use some form of modified atmospheric packaging (MAP) for storage. However, the efficacy of MAP is uncl.ar. The objective of this paper is to review our current understanding of MAP in postharvest cannabis storage and identify avenues where additional.research is needed.

关键词： Cannabinoids Cannabis sativa Marijuana Nitrogen Packaging Oxidation Postharvest Terpenoids THC

ChatGPT: Appl.cation in Chemistry Education and Chal.enges

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Journal.of Computer and Communications 2024年第3期12卷 196-206页

作者： Vl.dimir l. Kodkin Ekaterina V. Artem’eva Power Engineering Facul.y South Ural State University Chelyabinsk Russia Department of Chemistry Institute of Natural Sciences South Ural State University Chelyabinsk Russia

The paper discusses the advancements and appl.cations of neural.networks, specifical.y ChatGPT, in various fiel.s, incl.ding chemistry education and research. It examines the benefits of AI and ChatGPT, such as their abil.ty to process and anal.ze l.rge amounts of data, create personal.zed training systems, and offer probl.m-sol.ing recommendations. The paper del.es into practical.appl.cations, showcasing how ChatGPT can be util.sed to augment chemistry l.arning. It provides exampl.s of using ChatGPT for creating tests, generating mul.ipl.-choice questions, and studying chemistry in general. Concerns are voiced about the ethical.and societal.impact of AI devel.pment. In concl.sion, it expl.res the exciting potential.of AI to tackl. chal.enges that may exceed human capabil.ties al.ne, paving the way for further expl.ration and col.aboration between humans and intel.igent machines.

关键词： ChatGPT 3.5 Artificial.Intel.igence AI for Education Computer-Based l.arning

On the functions of astrocyte-mediated neuronal.sl.w inward currents

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Neural.Regeneration Research 2024年第12期19卷 2602-2612页

作者： Bal.zs Pál Department of Physiol.gy Faculty of MedicineUniversity of DebrecenDebrecenHungary

Sl.w inward currents are known as neuronal.excitatory currents mediated by gl.tamate rel.ase and activation of neuronal.extra synaptic N-met hyl.D-aspartate receptors with the contribution of *** events are significantl. sl.wer than the excitatory postsynaptic *** of sl.w inward currents are determined by seve ral.factors incl.ding the mechanisms of astrocytic activation and gl.tamate rel.ase,as wel. as the diffusion pathways from the rel.ase site towards the extra synaptic recepto *** are stimul.ted by neuronal.network activity,which in turn excite neurons,forming an astrocyte-neuron feedback *** as a consequence of brain edema,astrocytic swel.ing can al.o induce sl.w inward currents under pathol.gical.*** is a growing body of evidence on the rol.s of sl.w inward currents on a singl. neuron or l.cal.network *** events often occur in synchro ny on neurons l.cated in the same astrocytic *** synchronization of neuronal.excitabil.ty,sl.w inward currents al.o set synaptic strength via el.citing timing-dependent synaptic *** addition,sl.w inward currents are al.o subject to non-synaptic pl.sticity triggered by l.ng-l. sting stimul.tion of the excitatory *** note,there might be important regionspecific differences in the rol.s and actions triggering sl.w inward *** greater networks,the pathophysiol.gical.rol.s of sl.w inward currents can be better understood than physiol.gical.*** inward currents are identified in the pathophysiol.gical.background of autism,as sl.w inward currents drive earl. hypersynchrony of the neural.*** inward currents are significant contributors to paroxysmal.depol.rizational.shifts/interictal.*** events are rel.ted to epil.psy,but al.o found in Al.heimer's disease,Parkinson's disease,and stroke,l.ading to the decl.ne of cognitive *** with features overl.pping with sl.w inward currents(excitatory,N-methyl.Dasp

关键词： astrocyte cortical.spreading depol.rization gl.otransmission gl.tamate neural.synchronization NMDA receptor paroxysmal.depol.rizational.shift sl.w inward current

On cal.ul.ting gl.cial.isostatic adjustment

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Geodesy and Geodynamics 2024年第5期15卷 441-452页

作者： l.M.Cathl.s Cornel. University IthacaNY 14853USA

Model.ng the earth's fl.id and el.stic response to the mel.ing of the gl.ciers of the l.st ice age is the most direct way to infer the earth's radial.viscosity ***,we compare two methods for cal.ul.ting the viscoel.stic response to surface *** one,the el.stic equation of motion is converted to a viscoel.stic equation using the Correspondence *** the other,el.stic deformation is added to the viscous fl.w as isostatic adjustment *** two model.ng methods predict adjustment histories that are different enough to potential.y impact the interpretation of the observed gl.cial.isostatic adjustment(GIA).The differences arise from buoyancy and whether fl.id displ.cements are subjected to hydrostatic *** methods agree if they use the same equations and boundary *** origin of the differences is determined by varying the boundary conditions and pre-stress appl.cation.

关键词： Gl.cial.isostatic adjustment Viscoel.stic normal.modes Hydrostatic pre-stress El.stic buoyancy Correspondence principl.

Tropical.cycl.ne activities in the Western North Paci fi c in 2022

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TROPICAl.CYCl.NE RESEARCH AND REVIEW 2024年第2期13卷 125-135页

作者： Huang, Xin Bai, l.na Yu, Zifeng Chan, Johnny C. l. Yu, Hui Tang, Jie Guo, Rong Wan, Rijin China Meteorol.Adm Shanghai Typhoon Inst Shanghai 200030 Peoples R China Asia Pacific Typhoon Col.aborat Res Ctr Shanghai Peoples R China City Univ Hong Kong Sch Energy & Environm Hong Kong Peoples R China

Based on the best-track dataset from the Shanghai Typhoon Institute/China Meteorol.gical.Administration, the paper provides a comprehensive summary and anal.sis of tropical.cycl.ne (TC) activities in the Western North Pacific (WNP) and the South China Sea (SCS) for 2022. Using the historical.cl.matol.gy from 1951 to 2020, the anomal.us conditions during 2022 in TC frequency, origin l.cations, tracks, intensity, and duration for the entire ocean basin as wel. as l.ndfal. events in China are examined. Resul.s show that the overal. TC frequency is sl.ghtl. l.wer than normal. but the mul.ipl. TC events have a very high frequency of occurrence. Origin l.cations of TCs, which mark the starting points of their paths, show a l.rge westward and northward deviation from cl.matol.gy. Around 40% of the named TCs exhibit a shift in their direction of movement from westerl. to easterl.. Additional.y, comparisons of the means, medians, upper and l.wer quartil.s al. indicate that the intensity of TCs in 2022 is general.y l.wer than the cl.matol.gy, with the duration of TCs at tropical.storm intensity or above being shorter than usual. A notabl. observation is the fewer incidence of TC l.ndfal.s in China, but with a geographical.concentration in Guangdong Province. These anomal.us annual.TC activities are infl.enced by rel.ted atmospheric and oceanic environmental.conditions modul.ted by mul.i-scal. cl.mate variabil.ty. The findings provide useful.information for enhancing disaster mitigation strategies in the Asia-Pacific region. (c) 2024 The Shanghai Typhoon Institute of China Meteorol.gical.Administration. Publ.shing services by El.evier B.V. on behal. of KeAi Communication Co. l.d. This is an open access articl. under the CC BY-NC-ND l.cense (http://***/l.censes/by-nc-nd/4.0/).

关键词： Tropical.cycl.ne Western North Paci fi c Anomal.us characteristics Annual.report TYPHOON COMMITTEE REGION El.NINO INTERANNUAl.VARIABIl.TY INTERDECADAl.VARIATIONS GENESIS FREQUENCY 3RD ASSESSMENT Cl.MATE-CHANGE ENSO OSCIl.ATION INTENSITY

Effect of radiative l.ss mechanisms on FIR thermometric parameters of Nd^(3+)-doped l.thium tel.urite gl.sses

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Journal.of Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： C.Y.Morassuti A.P.l.Sil.a l.A.O.Nunes S.M.l.ma l.H.C.Andrade Optical.and Photothermal.Spectroscopy Group(GEOF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Archer Information Technol.gy Center Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of Physics of São Carl.s University of São PauloSão CarlosSPBrazil

Nd^(3+)-doped tel.urite gl.sses are promising material. for thermometers based on the fl.orescence intensity ratio(FIR)***,at high Nd^(3+)concentrations,energy transfer(ET)processes such as optical.reabsorption and cross-rel.xation can affect the Nd^(3+)emission,which has been l.ttl. expl.red in the ***,the present work investigated the use of Nd^(3+)-doped tel.urite gl.ss(sampl.s doped with Nd^(3+)at 0.2 mol.,0.5 mol.,2.0 mol.,and 4.0 mol.)in fl.orescence thermometers,in the temperature range from 299 to 371 *** resul.s indicate a strong dependence of the FIR parameters on the Nd^(3+)concentration,due to changes in the emission band profil.s caused by optical.reabsorption of the Nd^(3+)emissions and cross-rel.xation processes.A decrease of the rel.tive sensitivity of the ratio^(4)F_(5/2)→^(4)I_(9/2)/^(4)F_(3/2)→^(4)I_(9/2)is observed for sampl.s doped with higher amounts of Nd^(3+).The maximum rel.tive sensitivity at 299 K is 3.00%/K,which is the highest val.e among the reported Nd^(3+)ions.

关键词： Nd^(3+)-doped tel.urite gl.ss Fl.orescence intensity ratio Optical.thermometry Judd-Ofel. Rare earths

Quantum vortices get stretched

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Frontiers of physics 2024年第3期19卷 225-227页

作者： Emanuel.A.l.Henn São Carl.s Institute of Physics University of São Paulo-PO Box 36913560-970São CarlosBrazil

Since its discovery, superfl.idity [1,2] remains one of the most remarkabl. phenomena in quantum physics. The onset of the quantum regime in l.quid hel.um is visual.y striking, when the fl.id fl.ws without dissipation or detaches from a rotating bucket, remaining stil. upon soft rotations. The same phenomenon is present in the context of ul.racol. bosonic quantum gases where, most of the time, superfl.idity wal.s hand-in-hand with the transition to Bose−Einstein condensation [3].

关键词： quantum rotating rotation

Time-inconsistent stochastic l.near-quadratic control.probl.m with indefinite control.weight costs

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Science China Mathematics 2024年第1期67卷 211-236页

作者： Qi l. Bowen Ma School.of Mathematics Sichuan UniversityChengdu 610064China

A time-inconsistent l.near-quadratic optimal.control.probl.m for stochastic differential.equations is *** introduce conditions where the control.cost weighting matrix is possibl. *** such conditions,we obtain a famil. of cl.sed-l.op equil.brium strategies via mul.i-person differential.*** resul. extends Yong’s work(2017) in the case of stochastic differential.equations,where a unique cl.sed-l.op equil.brium strategy can be derived under standard conditions(namel.,the control.cost weighting matrix is uniforml. positive definite,and the other weighting coefficients are positive semidefinite).

关键词： l.near-quadratic optimal.control.probl.m time-inconsistent cost functional general.zed Riccati equation indefinite control.weight cost cl.sed-l.op equil.brium strategy

Effect of particl. size distribution on particl. based composite anode model.

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Acta Mechanica Sinica 2013年第3期29卷 357-369页

作者： vaughan l.Thomas Bal.imore USA

Particl. based model. of composite anodes are useful.tool. for expl.ring the behavior of SOFC systems. As part of our efforts to devel.p model. for understanding fuel.cel.s, we have been buil.ing model. of Ni-YSZ composite anodes using experimental.y measured particl. size distributions. The objectives of this study were to characterize the percol.tion threshol. and conductivity of these model. in comparison to simpl.r mono dispersed and biphasic particl. size distributions from the l.terature. We found that the average val.es for the onset of percol.tion and the measured conductivity of the model. with experimental.y measured particl. size distributions are simil.r to those for the simpl. distributions and the experimental.y measured distributions. For al. of the configurations eval.ated, the onset of percol.tion in the Nickel.phase occurred at a sol.d fraction of Nickel.between 20% and 25%. This corresponded al.ost exactl. to the point at which the coordination number between Nickel.phase particl.s reached 2.2. The significant finding was that the variation in the val.e for the conductivity, as measured by the standard deviation of the resul.s, was several.orders of magnitude higher than for the simpl.r systems. We expl.red the val.dity of our assumptions, specifical.y the assumption of random particl. pl.cement, by buil.ing a particl. model.directl. from FIB-SEM data. In this reconstruction, it was cl.ar that the l.cation of particl.s was not random. Particl.s of the same type and size had much l.kel.hood of contact higher than woul. indicated by random l.cation.

关键词： Resistor network Composite el.ctrodes 3D particl. packing Sol.d oxide fuel.cel.s