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Proximity to corridors benefits bird comm.nities in vegetated interrow vineyards in m.ndoza, Argentina

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Avian Research 2024年第2期15卷 147-155页

作者： Andrea paula Goijm.n Agustín Zarco EEA La Consulta Instituto Nacional de Tecnología Agropecuaria(INTA)San CarlosMendozaArgentina Instituto Argentino de Investigacion en las Zonas Aridas(IADIZA)COnICET 5500MendozaArgentina

m.nagem.nt under ecological schemes and increasing habitat heterogeneity,are essential for enhancing biodiversity in *** provide several contributions to agriculture,for example pest control,recreation and enhancing hum.n m.ntal health,and have intrinsic *** are also ideal model organisms because they are easy to survey,and species respond differently to agricultural land use at different *** borders of crops are key for m.ny species of birds,and distance to the border have been found to be an important factor in vineyard-dom.nated *** evaluate if there are differences in the bird assemblage,between the interior compared to borders within vineyards,using a hierarchical comm.nity occupancy *** hypoth-esized that occupancy of birds is greater in environm.nts with greater heterogeneity,which in this study was considered to be contributed by the proximity to vegetated *** expected that vineyard borders close to corridors will have higher bird occupancy than the center of the *** research was conducted in three vineyards with biodiversity-friendly m.nagem.nt practices,in Gualtallary,m.ndoza,*** surveys were conducted over three breeding seasons from 2018 to *** and richness of the bird comm.nity was more closely associated with the borders adjacent to the corridors than with the interior of the vineyards,as we initially predicted,although the assemblage of birds did not differ *** than 75%of the registered species consume exclusively or partially ***-friendly m.nagem.nt and ecological schemes,together with vegetated corridors provide multiple benefits for biodiversity *** ap-proaches not only m.nimize the use of agrochemicals but also prioritize soil cover with spontaneous vegetation,which supports a diverse comm.nity of insectivorous bird species,potentially contributing to pest control.

关键词： Avian Bayesian analysis Field scale agroecosystem m.nagem.nt multi-species occupancy model nature’s contributions to people

Solar-assisted photocatalytic water splitting using defective UiO-66 solids from modulated synthesis

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nano Research 2024年第5期17卷 4134-4150页

作者： Celia m.Rueda-navarro maría Cabrero-Antonino paula Escamilla Valentín Díez-Cabanes Dong Fan Pedro Atienzar Belén Ferrer Ignacio Vayá Guillaume maurin Herme G.Baldoví Sergio navalón Departam.nto de Química Universitat Politècnica de ValènciaCamino de Vera s/nValencia 46022Spain Instituto de Ciencia molecular(ICmOL) Universitat de ValènciaPaterna 46980Spain ICGm Univ.MontpellierCNRSENSCMMontpellier34095France Instituto de Tecnología Química(UPV-CSIC) Universitat Politècnica de ValènciaAvenida de los Naranjos s/nValencia 46022Spain

metal-organic frameworks(mOFs)are attracting increasing interests as photocatalysts for solar-driven hydrogen production from *** paper reports on a comparative study of using either acetic acid(AA)or trifluoroacetic acid(TFA)as the representative UiO-66 organic modulators for synthesizing visible light responsive UiO-66(Zr)-X(X:nH_(2) or nO_(2))photocatalysts for water *** results show that photocatalytic hydrogen generation from a water/methanol mixture can be improved by varying the nature and amount of the modulator employed to prepare the different UiO-66(Zr)-X(X:nH_(2) or nO_(2))solid ***-66(Zr)-nH_(2) was the most active photocatalyst,followed by UiO-66(Zr)-nO_(2),both prepared with 12 equivalents of AA with respect to the organic *** UiO-66(Zr)-nH_(2) solid was more active than the parent mOF in photocatalytic overall water splitting(OWS)(H_(2) and O_(2) production of 450 and 160μmol·g^(-1),respectively,in 5 h;apparent quantum yield(AQY)at 400 nm of 0.06%)in the absence of methanol and compares favourably with analogous *** on the photocatalytic activity of the most active solids of both series was obtained by means of a series of techniques,including ultraviolet-visible(UV-vis)diffuse reflectance,X-ray photoelectron spectroscopy(XPS),laser flash photolysis(LFP),electron spin resonance(ESR),photolum.nescence and photoelectrochemical measurem.nts together with density functional theory(DFT)*** results showed that organic acid modulators can be used to enhance the photocatalytic activity of missing linker UiO-66 defective materials in solar-powered water splitting.

关键词： heterogeneous photocatalysis metal-organic frameworks(mOFs) UiO-66 materials carboxylic acid modulators water splitting solar light

Synthesis and applications of lanthanoid complexes of pentadentate and hexadentate n_(5) and n_(6) macrocycles:A review

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Journal of Rare Earths 2024年第1期42卷 1-15,I0001页

作者： Julio Corredoira-Vázquez Cristina González-Barreira paula Oreiro-martínez Ana m.García-Deibe Jesús Sanmartín-matalobos matilde Fondo Departam.nto de Química Inorganica Facultade de QuímicaUniversidade de Santiago de CompostelaCampus Vida15782Santiago de CompostelaSpain Phantom-g CICECO-Aveiro Institute of MaterialsDepartment of PhysicsUniversity of Aveiro3810-193AveiroPortugal Institute of materials(imATUS) Universidade de Santiago de Compostela15782Santiago de CompostelaSpain

In this paper,the lanthanoid complexes of n_(5) and n_(6) macrocycle ligands,without pendant arms or additional heteroatoms,are *** review covers the period from 2015 to the current date,since in 2014 Schiff base macrocyclic ligands incorporating the pyridine moiety,and their complexes,were revised,and in 2015 the chemistry of pentaaza macrocycle ligands with rare earth metals was also *** and phthalocyanine ligands are not included in this review,which primarily focuses on complexes with Schiff bases and am.nes without pendant arms or any additional donor other than *** synthetic methods,structural characterization,based on single X-ray crystal data,and properties of the lanthanoid complexes,with special attention to magneto-structural correlations,are presented herein.

关键词： Lanthanoid n_(5),n_(6)macrocycle Coordination chemistry Chirality Biological activity molecule magnet

The effectiveness of different wear indicators in quantifying wear on railway wheels of freight wagons

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Railway Engineering Science 2024年第3期32卷 307-323页

作者： Philipe Augusto de paula Pacheco m.magelli matheus Valente Lopes Pedro Henrique Alves Correa n.Zampieri n.Bosso Auteliano Antunes dos Santos Federal Institute of the Southeast of m.nas Gerais(IF Sudeste mG) Técnico PanamáStreet 45Santos DumontMG 36246-311Brazil Railway Laboratory(Lafer) Universidade Estadual de Campinas(UNICAMP)Mendeleyev Street 200CampinasSP 13083-872Brazil Departm.nt of mechanical and Aerospace Engineering Politecnico Di TorinoC.so Duca degli Abruzzi 2410129 TurinItaly

Railway infrastructure relies on the dynamic interaction between wheels and rails;thus,assessing wheel wear is a critical aspect of maintenance and *** paper focuses on the wheel-rail wear indicator T-gamma(Tγ).Amidst its use,it becomes apparent that Tγ,while valuable,fails to provide a comprehensive reflection of the actual material removal and actual contact format,which means that using only Tγas a target for optimization of profiles is not *** this work,three different freight wagons are evaluated:a meter-gauge and a broad-gauge heavy haul vehicles from South American railways,and a standard-gauge freight vehicle operated in Europe,with different axle loads and dissimilar new wheel/rail *** vehicles are subjected to comprehensive multibody simulations on various *** simulations aimed to elucidate the intricate relationship between different wear indicators:Tγ,wear index,material removal,and maximum wear depth,under diverse curves,non-compensated lateral accelerations(A_(nc)),and *** findings showed a correlation of 0.96 between Tγand wear depth and 0.82 between wear index and material removed for the outer *** the results,the Tγis better than the wear index to be used when analyzing wear depth while the wear index is more suited to foresee the material *** results also show the low influence of A_(nc)on wear index and Tγ.By considering these factors together,the study aims to improve the understanding of wheel-rail wear by selecting the best wear analysis approaches based on the effectiveness of each parameter.

关键词： Wear index Wear volume Wear modeling Dynamic simulation

Long-term m.nitoring reveals the effect of precipitation and silviculture on nothofagus regeneration in northern Patagonia mixed forests

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Ecological Processes 2024年第2期13卷 103-117页

作者： Georgina Sola Camila mateo Alejandro Dezzotti paula marchelli Hernán Attis Beltrán Renato Sbrancia Luis Chauchard marcelo González Pe?alba martín Lara Verónica El mujtar Consejo nacional de Investigaciones Científicas y Técnicas (COnICET ) Asentamiento Universitario San martín de los Andes (AUSmA-UnCo) Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB) Instituto Nacional de Tecnología Agropecuaria (INTA) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Departam.nto de Conservación y m.nejo Parque Nacional Lanín- Administración de Parques Nacionales (PNL-APN)

Background Tree regeneration is a key component of resilience because it promotes post-disturbance recovery of forests. northwestern Patagonia from Argentina is occupied by nothofagus alpina（na）, n. obliqua（no）, and n. dombeyi（nd） forests that grow along an intense precipitation gradient, m.naged throughout shelterwood silvicultural system by technicians of the Lanin natural Reserve. The objective of this study was to evaluate the influence of seeding cuttings over the dynamics of nothofagus mixed forests across landscape（precipitation gradient） based mainly on the composition and abundance of tree regeneration, perm.nent sampling plots and generalized linear mixed models. In particular, we analysed:（i） the structure of sexual and asexual regeneration during nd > 20 years after harvest（the dynamics of m.naged forests）, and（ii） the structure of sexual regeneration in primary and m.naged forests after > 20 years of harvest（the effect of silviculture）.Results nd was the most abundant species in the regeneration of m.naged forests during all periods in both sites despite its lower contribution to the adult cohort. During the 10–20 years period after harvest, the humid site exhibited higher regeneration density than the mesic site(120,000 and 6000 ind ha-1, respectively), and it decreased afterwards. The number of established regeneration（> 2 m height） was lower for na in the mesic site and for no in the humid site(0 and 57 ind ha-1, respectively). However, in comparison to no, na showed a higher number of sprouted stumps and sprouts per stump, and a higher sprout height in the mesic site. no exhibited higher sprout mortality in the humid site. Finally, the regeneration of primary forests showed lower density and height, and a more balanced composition than that of m.naged *** The silvicultural effects on the mixed forest regeneration dynamics was strongly influenced by the condition of sites. Therefore, m.nagem.nt prescriptions should be adj

关键词： nothofagus alpina nothofagus obliqua nothofagus dombeyi Basal sprouting Shelterwood silvicultural system Ecological resilience

Tracking the change in Spanish greenhouse gas emissions through an LmDI decomposition model:A global and sectoral approach

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Journal of Environm.ntal Sciences 2024年第5期139卷 114-122页

作者： paula Fernández González maría José Presno m.nuel Landajo Departm.nt of Applied Economics University of OviedoAuda del Cristos/n 33011 OviedoSpain

The reduction of GHG emissions to reverse the greenhouse effect is one of the main challenges in this *** this paper we pursue two ***,we analyze the evolution of GHG emissions in Spain in 2008–2018,at both the global and sectoral levels,with the variation in emissions decomposed into a set of determ.ning ***,we propose several actions specifically oriented to more tightly controlling the level of *** results showed a remarkable reduction(18.44%)in GHG emissions,mainly due to the intensity effect,but also to the production-per-capita *** detected somewhat different patterns am.ng the various sectors *** the intensity effect was the most influential one in the agricultural,transport,and others sectors,the production-per-capita effect was predom.nant in the case of *** carbonization effect was revealed as crucial in the commerce *** above findings highlight the importance of the energy efficiency measures taken in recent years in the Spanish economy,also pointing to the need to deepen those strategies and to propose new measures that entail greater efficiency in *** efforts in areas like innovation,R&D,diffusion of more eco-friendly technologies,and a greater use of greener energies all prove to be essential reduction actions to fight the greenhouse effect.

关键词： LmDI Decomposition Spain GHG emissions

Lax-Oleinik-Type Formulas and Efficient Algorithms for Certain High-Dim.nsional Optimal Control Problems

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Comm.nications on Applied mathematics and Computation 2024年第2期6卷 1428-1471页

作者： paula Chen Jerome Darbon Tingwei m.ng Division of Applied mathematics Brown UniversityProvidenceRIUSA Departm.nt of mathematics UCLALos AngelesCAUSA

Two of the main challenges in optimal control are solving problems with state-dependent running costs and developing efficient numerical solvers that are computationally tractable in high *** this paper,we provide analytical solutions to certain optimal control problems whose running cost depends on the state variable and with constraints on the *** also provide Lax-Oleinik-type representation formulas for the corresponding Hamilton-Jacobi partial differential equations with state-dependent ***,we present an efficient,grid-free numerical solver based on our representation formulas,which is shown to scale linearly with the state dim.nsion,and thus,to overcome the curse of *** existing optimization methods and the m.n-plus technique,we extend our numerical solvers to address more general classes of convex and nonconvex initial *** dem.nstrate the capabilities of our numerical solvers using implem.ntations on a central processing unit(CPU)and a field-programmable gate array(FPGA).In several cases,our FPGA implem.ntation obtains over a 10 times speedup compared to the CPU,which dem.nstrates the promising perform.nce boosts FPGAs can *** numerical results show that our solvers have the potential to serve as a building block for solving broader classes of high-dim.nsional optimal control problems in real-time.

关键词： Optimal control Hamilton-Jacobi partial differential equations Grid-free numerical methods High dim.nsions Field-programmable gate arrays(FPGAs)

Pathological and therapeutic effects of extracellular vesicles in neurological and neurodegenerative diseases

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neural Regeneration Research 2024年第1期19卷 55-61页

作者： paula lzquierdo-Altarejos Victoria moreno-m.nzano Vicente Felipo Laboratory of neurobiology Centro Investigación Príncipe FelipeValenciaSpain neuronal and Tissue Regeneration Laboratory Centro Investigación Príncipe FelipeValenciaSpain

Extracellular vesicles are released by all cell types and contain proteins,microRnAs,m.nAs,and other bioactive *** vesicles play an important role in intercellular comm.nication and in the modulation of the imm.ne system and *** cargo of extra cellular vesicles(e.g.,proteins and microRnAs)is altered in pathological *** vesicles contribute to the pathogenesis of m.ny pathologies associated with sustained inflammation and neuroinflammation,including cance r,diabetes,hype ramm.nemia and hepatic encephalopathy,and other neurological and neurodegenerative *** vesicles may cross the blood-brain barrier and transfer pathological signals from the periphery to the *** contributes to inducing neuroinflammation and cognitive and motor impairm.nt in hyperamm.nemia and hepatic encephalopathy and in neurodegenerative *** mechanisms involved are beginning to be unde *** example,increased tumor necrosis factor a in extracellular vesicles from plasma of hype ramm.nemic rats induces neuroinflammation and motor impairm.nt when injected into normal *** the mechanisms by which extracellular vesicles contribute to the pathogenesis of these diseases will help to develop new treatm.nts and diagnostic tools for their easy and early *** contrast,extra cellular vesicles from mesenchymal stem cells have therapeutic utility in m.ny of the above pathologies,by reducing inflammation and neuroinflammation and improving cognitive and motor *** extra cellular vesicles recapitulate the beneficial effects of mesenchymal stem cells and have advantages as therapeutic tools:they are less imm.noge nic,may not diffe rentiate to malignant cells,cross the blood-brain barrier,and may reach more easily target *** vesicles from mesenchymal stem cells have beneficial effects in models of ischemic brain injury,Alzheimer's and Parkinson's diseases,hyperamm.nemia,and

关键词： extracellular vesicles inflammation cognitive function mesenchymal stem cells neurodegenerative diseases neuroinflammation therapy transform.ng growth factor-β

Attaching CF3 groups to organic molecules using trifluoroacetates via ion-shielding photoelectrocatalysis

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Science China Chemistry 2024年第11期67卷 3495-3497页

作者： paula Visiedo-Jim.nez Francisco Juliá-Hernández Departam.nto de Química Inorgánica Facultad de Química Universidad de MurciaCampus de Espinardo

Fluorinated molecules play a protagonist role in pharmaceuticals, agrochemicals, and materials. The incorporation of fluoroalkyl groups into organic compounds provides them with unique chemical properties that are key...

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