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Different canopy openings affect underground traits in herbaceous plants of a southern forest in Patagonia

journal of Plant Ecology 2016年第5期9卷 542-552页

作者： luciano j.selzer Carlos A.Busso CADIC-CONICET Houssay 200(9410)UshuaiaTierra del FuegoArgentina.Instituto de Ciencias PolaresAmbiente y Recursos Naturales.Universidad Nacional de Tierra del FuegoAlem 1036(9410)UshuaiaTierra del FuegoArgentina CERZOS-CONICET San Andrés 800(8000)Bahía BlancaBuenos AiresArgentina.Depto.de Agronomía-Universidad Nacional del SurSan Andrés 800(8000)Bahía BlancaBuenos AiresArgentina

Aims Forest canopy openings modify the natural environment,producing changes in light quality and intensity,precipitation and *** turn,these changes promote the acclimation of understory ***,little work has been done on underground responses to those environmental *** objective of this work was to determine how Osmorhiza depauperata,Phleum alpinum and Poa pratensis change its root length density and root colonization by mycorrhiza as a function of light availability in a Nothofagus pumilio(***)forest harvested following the variable retention *** We selected three microenvironments in an old growth forest harvested by the variable retention prescription:aggregated retention,dispersed retention with influence of aggregated retention and dispersed retention.A non-harvested primary forest(PF),similar to the harvested one,was used as a *** 2 months,from October 2008 to April 2009,we took soil cores from randomly selected *** these soil cores,root length density and colonization percentage(CP)by arbuscular mycorrhizae were *** Findings Light availability changed significantly among the *** general,root length density was significantly greater in *** than in *** and both species greater than in *** availability increased root length density in all species,although the magnitude of these increases difference among *** length density was 187%greater in ***,101%in *** and 94%in *** in the disperse retention system than in the *** CP was higher in *** than in *** and ***,it was lower in the PF than in the harvested *** were very low.

关键词： root length density mycorrhizal colonization light shade understory Tierra del Fuego

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Apples to oranges:environmentally derived,dynamic regulation of serotonin neuron subpopulations in adulthood?

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Neural Regeneration Research 2025年第9期20卷 2596-2597页

作者： Christopher j.O’Connell Matthew j.Robson Department of Genetics College of MedicineHarvard UniversityBostonMAUSA james L.Winkle College of Pharmacy Division of Pharmaceutical SciencesUniversity of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program College of MedicineUniversity of CincinnatiCincinnatiOHUSA

Traumatic brain injury(TBI)is a public health problem with an undue economic burden that impacts nearly every age,ethnic,and gender group across the globe(Capizzi et al.,2020).TBIs are often sustained during a dynamic range of exposures to energetic environmental forces and as such outcomes are typically heterogeneous regarding severity and pathology(Capizzi et al.,2020).

关键词： sustained orange dynamic

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Multiphase-field modelling of concurrent grain growth and coarsening in complex multicomponent systems

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journal of Materials Science & Technology 2020年第10期42卷 215-229页

作者： P.G.Kubendran Amos Ramanathan Perumal Michael selzer Britta Nestler Institute of Applied Materials(1AM-CMS) Karlsruhe Institute of Technology(KIT)Strasse am Forum 776131 KarlsruheGermany Institute of Digital Materials Science(IDM) Karlsruhe University of Applied SciencesMoltkestr.3076133 KarlsruheGermany

Phase-field modelling of microstructural evolution in polycrystalline systems with phase-associated grains has largely been confined to continuum-field *** this study,a multiphase-field approach,with a provision for introducing grain boundary and interphase diffusion,is extended to analyse concurrent grain growth and coarsening in multicomponent polycrystalline microstructures with chemically-distinct *** effect of the number of phases and components on the kinetics of evolution is investigated by considering binary and ternary systems of duplex and triplex microstructures,along with a single phase *** is realised that the mere increase in the number of phases minimises the rate of concurrent grain growth and ***,the effect of components is substantially dependent on the respective kinetic *** work unravels that the disparity in the influence of phases and components is primarily due to the corresponding change introduced in the transformation *** the raise in number of phases convolutes the diffusion paths,the increase in number of component effects the rate of evolution through the interdiffusion,which introduces interdependency in the diffusing ***,the role of phase-fractions on the transformation rate of triplex microstructure is studied,and correspondingly,the interplay of interface-and diffusion-governed evolution is elucidated.A representative evolution of three-dimensional triplex microstructure with equal phase-fraction is comparatively analysed with the evolution of corresponding two-dimensional setup.

关键词： Concurrent grain growth and coarsening Duplex and triplex microstructure Microstructural coarsening Multiphase grain growth Multiphase-field modelling

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j/ψ-pair resonances by LHCb: a new revolution?

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Science Bulletin 2020年第23期65卷 1949-1951页

作者： luciano Maiani Dipartimento di Fisica and INFN Sapienza Universitàdi RomaPiazzale Aldo Moro 2.1-00185 RomaItaly T.D.Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China

In a research article appeared in this journal[1], the LHCb Collaboration has presented an extraordinary result on the mass spectrum of j/ψ-pairs produced in proton-proton high energy collisions. The spectrum shows: a narrow structure around 6:9 GeV matching the lineshape of a resonance and a broad structure just above twice the j/ψ mass. In the same region, more resonances may be present, not clearly distinguished within present statistics(see Fig. 1). A new spectroscopy is waiting for us, that of fully charm tetraquarks, which parallels the spectroscopy of charmonia revealed by the j/ψ discovery of 1974.

关键词： spectrum narrow quark

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Gene therapy for spinal muscular atrophy:perspectives on the possibility of optimizing SMN1 delivery to correct all neurological and systemic perturbations

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Neural Regeneration Research 2025年第7期20卷 2011-2012页

作者： Sharon j.Brown Rafael j.Yáñez-Muñoz Heidi R.Fuller School of Pharmacy and Bioengineering Keele UniversityKeeleUK Wolfson Center for Inherited Neuromuscular Disease TORCH BuildingRJAH Orthopaedic HospitalOswestryUK *** Center of Gene and Cell TherapyDepartment of Biological SciencesSchool of Life Sciences and the EnvironmentRoyal Holloway University of LondonEghamUK

Spinal muscular atrophy(SMA)is a genetic condition that results in selective lower motor neuron loss with concomitant muscle weakness and *** genetic cause of SMA was understood in 1995 when loss or impairment of the survival motor neuron 1(SMN1)gene was identified as the main contributing factor(Lefebvre et al.,1995).This,in combination with the discovery that humans have a“back-up”gene,SMN2,which can produce low levels(approximately 10%)of the full-length functional SMN protein,has led to the generation of SMA-specific gene *** was traditionally classified according to age of symptom onset and developmental milestones achieved,with life expectancy and severity varying between ***,SMN2 copy number is used as a proxy for the prediction of disease severity,with higher SMN2 copy number typically being associated with reduced severity of SMA,although this relationship is not absolute:some individuals with low SMN2 copy number have less severe SMA phenotypes and vice ***,the etiology of SMA is further complicated by other factors,such as non-typical nucleotide variants and SMN2-independent modifiers of disease severity.

关键词： atrophy traditionally absolute

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Women in visual neural regeneration research

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Neural Regeneration Research 2025年第2期20卷 489-490页

作者： Tonia S.Rex David j.Calkins Vanderbilt Eye Institute Vanderbilt University Medical CenterNashvilleTNUSA

The year 2024 marks the 60^(th)anniversary of Title IX and 25 years since the New York Times revealed bias against female faculty members at the Massachusetts Institute of *** take an opportunity here to examine the state of gender bias in a relatively new yet already prominent field,neural regeneration in the visual system,for which there is a well-defined context useful for this *** National Eye Institute(NEI)provided the first round of research funding for its Audacious Goals Initiative(AGI)on visual neural regeneration in 2013 and the last round in ***,we focus on this *** sources included PubMed,the National Science Foundation(NSF),the NEI,the Blue Ridge Institute for Medical Research and data from the major professional organization for eye and vision research,the Association for Research in Vision and Ophthalmology(ARVO).

关键词： neural visual Times

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Generation of brain vascular heterogeneity:recent advances from the perspective of angiogenesis

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Neural Regeneration Research 2025年第7期20卷 2013-2014页

作者： Nathanael j.Lee Ryota L.Matsuoka Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Molecular Medicine Cleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOHUSA

Heterogeneous proper t i es of vascular endothelial cells in the brain:The brain displays large energy dynamics and consumption,and this high level of metabolic demands is fulfilled by a continuous supply of glucose and oxygen through its vascular *** vasculature consists of highly divergent blood vessel branches,giving rise to a dense network of capillaries that supply blood to all cells across the *** elaborated vascular network is thought to develop via angiogenesis,a process in which new blood vessels grow from pre-existing *** capillaries exhibit organotypic features distinct from other tissues and are formed primarily by two major endothelial cell(EC)types:those that form the semi-permeable blood-brain barrier(BBB)and those that develop highly permeable pores known as fenestrae(Matsuoka et al.,2022).The structural and functional differences between BBB and fenestrated vascular ECs represent a fundamental feature of brain vasculature and form the foundation for both brain function and homeostasis.

关键词： angiogenesis homeostasis network

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Consensus on Intervals of Communication Delay

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International journal of Automation and computing 2018年第1期15卷 13-24页

作者： Heitor j.Savino Fernando O.Souza luciano C.A.Pimenta Graduate Program in Electrical Engineering Federal University of Minas Gerais Institute of Computing Federal University of Alagoas Department of Electronic Engineering Federal University of Minas Gerais

This paper brings out a structured methodology for identifying intervals of communication time-delay where consensus in directed networks of multiple agents with high-order integrator dynamics is achieved. It is built upon the stability analysis of a transformed consensus problem which preserves all the nonzero eigenvalues of the Laplacian matrix of the associated communication topology graph. It is shown that networks of agents with first-order integrator dynamics can be brought to consensus independently of communication delay, on the other hand, for agents with second-order integrator dynamics, the consensus is achieved independently of communication delay only if certain conditions axe satisfied. Conversely, if such conditions axe not satisfied, it is shown how to compute the intervals of communication delay where multiple agents with second-order or higher-order can be brought to consensus. The paper is ended by showing an interesting example of a network of agents with second-order integrator dynamics which is consensable on the first time-delay interval, but as the time-delay increases, it loses consensability on the second time-delay interval, then it becomes consensable again on the third time-delay interval, and finally it does not achieve consensus any more on the fourth time-delay interval. This example shows the importance of analyzing consensus with time-delay in different intervals.

关键词： Time delay systems multi-agent systems consensus communication delay roots location.

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Neuroprotection by resveratrol-glucuronide and quercetin-glucuronide via binding to polyphenol-and glycosaminoglycan-binding sites in the laminin receptor

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Neural Regeneration Research 2025年第3期20卷 819-820页

作者： Rayudu Gopalakrishna jennifer Aguilar Emily Lee William j.Mack Department of Integrative Anatomical Sciences Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA Department of Neurological Surgery Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA

The dietary polyphenolic compounds resveratrol and quercetin prevent neurodegenerative diseases in experimental models;however, they reach the brain only in nanomolar concentrations in the glucuronidated and sulfated ... 详细信息

关键词： resveratrol molar dated

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On conservation issues of contemporary architecture： The technical design development and the ageing process of the jubilee Church in Rome by Richard Meier

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Frontiers of Architectural Research 2018年第2期7卷 107-121页

作者： luciano Cardellicchio Kent School of Architecture University of Kent Marlowe Building Canterbury Kent CT2 7NR United Kingdom

A vast amount of iconic buildings distinguished by complex geometries have been constructed in the last two decades in the United Kingdom, Germany, Spain, Portugal, France and Italy. Overall, the construction of these iconic buildings has led to technical innovations. As these buildings are often erected following customised construction details and bespoke technical solutions that are rarely tested in advance, measuring their ageing process has become crucial to understand if these geometries are sustainable in terms of the cost of their maintenance. This study aims to analyse the technical design development and the ageing process of the jubilee Church in Rome by Richard Meier. Only fourteen years after the opening, this building is affected by extensive decay of construction materials due to both wrong technical design choices and lack of unaffordable maintenance work. This study aims to identify the causes of the premature decay of this building, recording retroactively its technical development and mapping the current state of damages.

关键词： Meier jubitee ChurchDecay Technology Contemporary Conservation

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