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reproductive patterns in Araucaria araucana forests in the Andean range, Chile

Ecological Processes 2024年第1期13卷 252-261页

作者： Sergio Donoso Karen Pe?a-rojas Claudia Espinoza Carolain Badaracco rómulo santelices-moya Antonio Cabrera-Ariza Mediterranean Forests Laboratory Faculty of Forestry and Nature Conservation Centro Secano Faculty of Agricultural and Forestry Sciences Universidad Católica del Maule Maule Advanced Studies research Center Vice-Rector's Office for Research and Postgraduate Studies Catholic University of Maule

Background Araucaria araucana is a mast species that presents a high variability in annual cone production. researchers have recorded synchronization events in cone production in different populations, which allows the seed production to be concentrated, reducing the percentage of seeds consumed by different animal *** We sampled three populations located in the Andes Mountains, Araucanía region, Chile. In 2004 we began the collection of data on cone production, for which we installed permanent plots（1200 m2each） at each location. We identified and labeled each female tree in each plot to monitor its cone production. In 2012 we selected a total of 30 trees near the plots to evaluate the number of seeds per cone. In each February from 2012 to 2014 we selected two mature cones and covered them with a porous mesh for subsequent collection and storage in March. At the beginning of June, we counted and weighed the seeds, determining the average weight, the number of seeds per cone, the germination capacity（GC）, and the germination speed（GS）.results Cone production was synchronous across the three locations. We observed significant differences among the locations and years evaluated. The cones had fewer seeds in 2013（high production） compared to those in 2012（low production）, but their weights were similar. In 2014 the cones produced smaller seeds in fewer quantities. The difference between the years 2013 and 2014 resulted from the high-energy expenditure in 2013. regarding GC and GS, there were significant differences among the three locations（GC: F = 45.41, p re the highest values were observed in *** Both GC and GS are related to seed weight but not to the number of cones produced in a given year. These annual fluctuations in seed production are determining factors in the population dynamics of forest species. Our results allow a better understanding of the reproductive phenology of A. araucana and could hel

关键词： Seed weight Germination potential Masting species Sustainable use Dioecious species

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A remote sensing approach to estimate the load bearing capacity of soil

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Information Processing in Agriculture 2024年第1期11卷 109-116页

作者： Italo rômulo Mendes de Souza Edson Eyji Sano renato Paiva de Lima Anderson rodrigo da Silva Statistics and Geoprocessing Laboratory Instituto Federal GoianoGeraldo Silva Nascimento RoadKm 2.575790-000 UrutaíGoiásBrazil Embrapa Cerrados BR-020 RoadKm 18Mailbox 0822373310-970 PlanaltinaDFBrazil Department of Soil Science ‘Luiz de Queiroz’College of AgricultureUniversity of São PauloAv.Pádua Dias235-AgronomiaPiracicabaSP 13418-900Brazil

Preconsolidation pressure(σp)of soil can be considered as an indicator of the Load Bearing Capacity(LBC),which is the tolerated surface pressure before compaction,often caused by the traffic of agricultural *** this pioneering study,a remote sensing approach was introduced to estimate LBC throughσp from soils of the“rio Preto”Hydrographic Basin,Bahia State,Brazil,in a monthly time lapse from 2016 to ***,σp is measured by a laborious and time demanding laboratory analysis,making it unfeasible to map large *** innovative methodology of this work consists of combining active–passive satellite data on soil moisture and pedotransfer functions of clay content and water matric potential to obtain geo-located estimates ofσ*** were analysed under different classes of soil use,land cover and slope;95%confidence intervals were built for the time series of mean values of LBC for each *** overall seasonal variation in LBC estimates is similar in areas with annual crops,grasslands and natural vegetation,and flat areas are less affected by soil moisture variations over the year(between seasons).LBC decreased,in general,at about 0.5%a year in flat ***,these areas demand attention,since they occupy 86%of the Basin and are mostly subjected to agricultural soil management and surface pressure by heavy machinery.

关键词： Soil compaction SMAP Preconsolidation stress Brazilian Cerrado

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Delayed Teleoperation with Force Feedback of a Humanoid robot

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International Journal of Automation and computing 2021年第4期18卷 605-618页

作者： Viviana moya Emanuel Slawinski Vicente Mut Institute of Automation National University of San JuanSan Martin 5400Argentina

Teleoperation systems allow the extension of human capabilities to remote-control devices by providing the operator with conditions similar to those at the remote site through a communication channel that sends information from one site to the other. This article aims to present an analysis of the benefits of force feedback applied to the bilateral teleoperation of a humanoid robot with timevarying delay. As a control scheme, we link adaptive inverse dynamics compensation, balance control, and P+d like controllers. Finally,a test is performed where an operator simultaneously handles the locomotion(forward velocity and turn angle) and arm of a simulated 3D humanoid robot to do a pick-and-place task using two master devices with force feedback, where indexes such as time to complete the task, coordination errors, path tracking error, and percentage of successful tests are reported for different time-delays. We conclude with the results achieved.

关键词： Humanoid robot bilateral teleoperation time delay force feedback walking manipulation

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A hot future for cool materials

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Frontiers in Energy 2023年第4期17卷 447-449页

作者： Xavier moya Neil D.MATHUr Department of Materials Science University of CambridgeCambridge CB3 0FSUK

The ewidespreadneed to pump heat necessitates simprovements that will increase energy efficiency and,more generally,reduce eenvironmental *** discussed at the recent Calorics 2022 Conference,heat-pump devices based on... 详细信息

关键词： magnetocaloric electrocaloric mechanoca-loric elastocaloric barocaloric

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Emerging potential of progranulin-dependent SorCS2 signaling in healthy and diseased nervous systems

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Neural regeneration research 2025年第9期20卷 2591-2593页

作者： Alena Salasova Anders Nykjær Danish research Institute of Translational Neuroscience DANDrITE-Nordic EMBL Partnership for Molecular Medicine and Centre of Excellence PROMEMODepartment of BiomedicineAarhus UniversityAarhusDenmark

The formation of the mammalian nervous system and its maturation into sensory,motor,cognitive,and behavioral circuits is a complex process that begins during early embryogenesis and lasts until young *** neurodevelopm... 详细信息

关键词： progr jointly CS2

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Study of wind towers with different funnels attached to in crease natural ventilation in an underground building

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Frontiers of Architectural research 2020年第4期9卷 925-939页

作者： C.A.Varela-Boydo S.L.moya r.Watkins Tecnologico Nocional de Mexico Centro Nacional de Investisacion y Desorrollo TecnoldsicoInterior Internado Palmira s/nColonia PalmiraCuernavaca62490 MorelosMexico Kent School of Architecture&Planning University of KentUK

Finding ways to cool buildings by natural,passive techniques is crucial in the context of global *** centuries,wind towers(traditi onal win dcatchers)have been used in the Middle East for cooling *** this study,the use of funnels at the openings of wind towers for wind ingress and egress is proposed primarily to increase the mass flow captured by the wind *** use of funnels in the wind in gress openings in creases the inlet area,improving the capture of *** parallel,the use of funnels in the egress openings modifies the wake of the tower,which aims to ease the exit of the flow from inside the *** design configurations are presented,where the length and width of the funnels are changed and tested separately by computational fluid dynamics(CFD).results of over 120 CFD simulations are presented and *** volumetric flow entering the wind towers in creases by 10.7% in several *** results in dicate that adding funnels to wind towers could positively in fluence their *** the dimensions of the funnels affects their efficacy and can increase or decrease the airflow entering the tower.

关键词： Wind towers Passive cooling Natural ventilation Funnels CFD Wind catchers

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OTX2 signaling in retinal dysfunction,degeneration and regeneration

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Neural regeneration research 2021年第10期16卷 2002-2003页

作者： Kenneth.L.moya raoul Torero Ibad Centre for Interdisciplinary research in Biology(CIrB) Collège de FranceCNRS UMR 7241INSERM U1050Labex MemoLifePSL Research UniversityParisFrance(Moya KLIbad RT)Univ.LilleCNRSUMR 8523-PhLAM-Physique des Lasers Atomes et MoléculesF-59000 LilleFrance(Ibad RT)

The protein OTX2 in the retina is necessary for the maintenance of normal physiologic processes,and may be a promising therapeutic agent for some ophthalmic *** this Perspective,we first shortly introduce the organization of the retina and the importance of OTX2 *** then present an example of reduced OTX2 activity in the developed retina associated with structural and functional *** next show that homeoproteins can have neuroprotective *** finally review several clear examples of OTX2 non-cell autonomous activity in the retina and the effects of diminishing or providing extracellular OTX2.

关键词： expression. functions. agent

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Antisense oligonucleotides provide optimism to the therapeutic landscape for tauopathies

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Neural regeneration research 2025年第3期20卷 803-804页

作者： Glenn A.Harris Lauren r.Hirschfeld rainwater Charitable Foundation Fort WorthTXUSA

Tauopathies are a group of neurodegenerative diseases characterized by abnormal metabolism of the misfolded tau protein. Tau is encoded by the microtubule-associated protein tau gene(MAPT) and can be classified as either 3-repeat(3r) or 4-repeat(4r) based on the number of repeat domains from alternative splicing of exon 10 of the MAPT gene.

关键词： tau metabolism diseases

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Development of heartwood,sapwood,bark,pith and specific gravity of teak(Tectona grandis)in fast-growing plantations in Costa rica

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Journal of Forestry research 2020年第2期31卷 667-676页

作者： Alexander Berrocal Johana Gaitan-Alvarez roger moya David Fernandez-Solis Edgar Ortiz-Malavassi Instituto Tecnologico de Costa rica Escuela de Ingenieria ForestalCartago Apartado 159-7050Costa Rica

To elucidate the development of heartwood,bark,sapwood,pith and specific gravity of wood in fastgrowing teak(Tectona grandis)plantations in Costa rica,we sampled three trees in each of 55 plantations and modelled each variable with age,site and different tree *** and stand density of plantations were significant correlated with stem diameter at breast height and total height of the *** of heartwood was initiated at the age of 4-year-old and increased in direct proportion with *** age of plantation had a significant relationship with stem diameter at breast height,heartwood percentage,sapwood thickness,sapwood percentage,percentage of bark,pith diameter and percentage,and specify *** model for these tree parameters was model with these parameters as dependent variable and in relation to age as independent variable.

关键词： Teak Growth Tree morphology parameters Morphology Tree development

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CLT Fabricated with Gmelina arborea and Tectona grandis Wood from Fast-Growth Forest Plantations: Physical and Mechanical Properties

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Journal of renewable Materials 2022年第1期10卷 1-17页

作者： Freddy Munoz Carolina Tenorio roger moya Angel Navarro-Mora Escuela de Ingenieria Forestal Instituto Tecnologico de Costa RicaCartago159-7050Costa Rica Escuela de Ingenieria en Construccion Instituto Tecnologico de Costa RicaCartago159-7050Costa Rica

Fabrication and use of Cross Laminated Timber(CLT)using tropical woods is still limited at *** objective of the present study aims to determine the possibility of using CLT panels of 3 and 5 layers,fabricated withTectona grandis and Gmelina arborea wood using adhesive of isocyanate polymer emulsion system catalyzed with polymeric ***,water absorption,density,flexure test,compression and glue-line shear were evaluated using ANSI/APA PrG320-2012 ASTM D198 and ASTM D4761 *** results showed that CLT panels of *** presented higher values of density,less water absorption and lower delamination,with no evident differences between the CLT of 3 and 5 *** high density of *** resulted in higher values of the mechanical *** flatwise and edgewise flexure tests in 5-layer CLT panels of both species pre-sented higher values of bending stiffness compared to those of 3-layer CLT *** the bending stress values in 3-layer CLT panels were higher than for 5-layer CLT *** for shear stress in bending flatwise,in both species,3-layer CLT surpassed 5-layer CLT panels,but in the edgewise test no differences were *** MOE and Fc in the compression test were superior in relation to the edgewise *** and Fc in compres-sion flatwise in 3-layer CLT was greater than in 5-layer CLT in both species,but edgewise these values were higher in 5-layer CLT *** most common failures were stress and delamination in the flexure test,whereas in the compression test these were:shearing,splitting and *** the glue-line shear test no differences were observed between CLT panels of 3 and 5 layers for both species.

关键词： Structural elements sustainable material building material tropical wood wood of plantation

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