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Human neural stem cell transplants to address multiple pathologies associated with traumatic brain injury

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Neural Regeneration Research 2019年第10期14卷 1699-1700页

作者： helene Clervius Mirza Baig Anil Mahavadi Shyam Gajavelli University of Miami Miller School of Medicine

Traumatic brain injury (TBI), an unmet need: TBI is an alteration in brain function caused by an external force with evidence of brain pathology. It could be from a bump, blow, blast or jolt to the head including penetrating the cranium. TBI is a public health concern worldwide due to its economic impact. Most TBIs are survivable, do not need hospitalization but may influence productivity. A smaller percentage of TBI due to falls or penetrating TBI (PTBI) needs hospitalization and accounts for largest fraction of TBI care costs.

关键词： Traumatic brain injury(TBI) function caused by an external largest fraction of TBI care costs

Micro-Differential Boundary Conditions Modelling the Absorption of Acoustic Waves by 2D Arbitrarily-Shaped Convex Surfaces

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Communications in Computational Physics 2012年第2期11卷 674-690页

作者： helene Barucq Julien Diaz Veronique Duprat INRIA Bordeaux-Sud Ouest Team-project MAGIQUE-3D LMA CNRS UMR 5142University of PauFrance

We propose a new Absorbing Boundary Condition(ABC)for the acoustic wave equation which is derived from a micro-local diagonalization process formerly defined by *** and which does not depend on the geometry of the surface bearing the *** considering the principal symbol of the wave equation both in the hyperbolic and the elliptic regions,we show that a second-order ABC can be constructed as the combination of an existing first-order ABC and a Fourier-Robin *** compare the new ABC with other ABCs and we show that it performs well in simple configurations and that it improves the accuracy of the numerical solution without increasing the computational burden.

关键词： Wave equation micro-local diagonalization absorbing boundary condition finite element formulation

FullApertureReconstruction of theAcoustic Far-Field Pattern from Few Measurements

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Communications in Computational Physics 2012年第2期11卷 647-659页

作者： helene Barucq Chokri Bekkey Rabia Djellouli INRIA Bordeaux Sud-Ouest Research Center Team Project Magique-3D&LMA/CNRS UMR 5142Universite de Pau et des Pays de l’AdourFrance Faculte des Sciences de Monastir Tunisia Department of Mathematics California State University Northridge&Interdisciplinary Research Institute for the SciencesIRISUSA

We propose a numerical procedure to extend to full aperture the acoustic farfield pattern(FFP)when measured in only few observation *** reconstruction procedure is a multi-step technique that combines a total variation regularized iterative method with the standard Tikhonov regularized *** proposed approach distinguishes itself from existing solution methodologies by using an exact representation of the total variation which is crucial for the stability and robustness of Newton *** present numerical results in the case of two-dimensional acoustic scattering problems to illustrate the potential of the proposed procedure for reconstructing the full aperture of the FFP from very few noisy data such as backscattering synthetic measurements.

关键词： Acoustic scattering problem limited aperture inverse obstacle problem ill-posed problem total variation Tikhonov regularization Newton method

Planning for Community Relocations Due to Climate Change in Fiji

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International Journal of Disaster Risk Science 2015年第3期6卷 315-319页

作者： Karen E.Mc Namara helene Jacot Des Combes School of Geography Planning and Environmental ManagementThe University of Queensland Pacific Centre for Environment and Sustainable Development University of the South Pacific

As a consequence of the impacts of climate change, some households and entire communities across the Pacific are making the complex and challenging decision to leave their homelands and relocate to new environments that can sustain their livelihoods. This short article charts how the residents of Vunidogoloa village in Fiji relocated in early 2014 to reduce their vulnerability to encroaching sea level and inundation events that regularly devastated the community. As a consequence of the Vunidogoloa relocation, this article also explores how the Fiji Government is planning for similar resettlement transitions, including vulnerability and adaptation assessments to develop a list of potential community relocations and the development of national relocation guidelines. This study draws from key informant interviews(n = 8) with government officials, as well as representatives from intergovernmental and local nongovernmental organizations,who are involved in the relocation issue. Given the speed at which these national, top-down initiatives are being forged and especially in light of the absence of any mention of relocation in Fiji’s 2012 climate change policy, careful and inclusive engagement across all scales and stakeholders,including communities 'earmarked' for relocation, is paramount.

关键词： Climate change Community relocation Fiji Risk planning Sea level rise

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Hawking incorporated

Invasive rats strengthen predation pressure on bird eggs in a South Pacific island rainforest

作者： Mialet helene.

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Current Zoology 2017年第6期63卷 583-590页

作者： Quiterie DURON Edouard BOURGUET helene DE MERINGO Alexandre MILLON Eric VIDAL Institut Mediterraneen de Biodiversite et d'Ecologie Marine et Continentale (IMBE) Aix Marseille Universite CNRS IRD Avignon Universite Centre IRD Noumea - BP A5 98848 Noumea Cedex Nouvelle-Caledonie France Institut Mediterraneen de Biodiversite et d'Ecologie Marine et Continentale (IMBE) Aix Marseille Universite CNRS IRD Avignon Universite Technopole Arbois-Mediterranee Bat. Villemin - BP 80 F-13545 Aix-en-Provence cedex 04 France

Invasive rats （Rattus spp.） are known to have pervasive impacts on island birds, particularly on their nesting success. To conserve or restore bird populations, numerous invasive rat control or eradication projects are undertaken on islands worldwide. However, such projects represent a huge investment and the decision-making process requires proper assessment of rat impacts. Here, we assessed the influence of two sympatric invasive rats （Rattus rattus and R. exulans） on native bird eggs in a New Caledonian rainforest, using artificial bird-nest monitoring. A total of 178 artificial nests containing two eggs of three different sizes were placed either on the ground or 1.5 m high and monitored at the start of the birds＇ breeding season. Overall, 12.4% of the nests were depredated during the first 7 days. At site 1, where nests were monitored during 16 days, 41.8% of the nests were depredated. The main predator was the native crow Corvus moneduloides, responsible for 62.9% of the overall predation events. Rats were responsible for only 22.9% of the events, and ate only small and medium eggs at both heights. Our experiment suggests that in New Caledonia, predation pressure by rats strengthens overall bird-nest predation, adding to that by native predators, Experimental rat control operations may allow reduced predation pressure on nests as well as the recording of biodiversity responses after rat population reduction.

关键词： bird-nest predation forest birds invasive rodents island conservation rat management.

Core-shell particles of C-doped CdS and graphene: A noble metal-free approach for efficient photocatalytic H_(2) generation

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Green Energy & Environment 2020年第4期5卷 461-472页

作者： Muhammad Zubair Estelle Marie M.Vanhaecke Ingeborg-helene Svenum Magnus RФnning Jia Yang Department of Chemical Engineering Norwegian University of Science and Technology(NTNU)Sem Sælands vei 4TrondheimNO7491Norway SINTEF Industry P.O.Box 4760 TorgardenTrondheimNO7465Norway

To achieve efficient photocatalytic H_(2) generation from water using earth-abundant and cost-effective materials,a simple synthesis method for carbon-doped CdS particles wrapped with graphene(C-doped CdS@G)is *** doping effect and the application of graphene as cocatalyst for CdS is studied for photocatalytic H_(2) *** most active sample consists of CdS and graphene(CdS-0.15G)exhibits promising photocatalytic activity,producing 3.12 mmol g^-(1) h^-(1) of H_(2) under simulated solar light which is^4.6 times superior than pure CdS nanoparticles giving an apparent quantum efficiency(AQY)of 11.7%.The enhanced photocatalytic activity for H_(2) generation is associated to the narrowing of the bandgap,enhanced light absorption,fast interfacial charge transfer,and higher carrier density(N_(D))in C-doped CdS@G *** is achieved by C doping in CdS nanoparticles and the formation of a graphene shell over the C-doped CdS *** stability test,the spent catalysts sample was also characterized to investigate the nanostructure.

关键词： C-doped CdS@G Core-shell nanostructure Photocatalytic H2 generation Graphene Carbon doping in CdS Bandgap narrowing

The need for data integration to address the challenges of climate change on the Guyana coast

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Geography and Sustainability 2021年第4期2卷 288-297页

作者： Temitope D.Timothy Oyedotun helene Burningham Department of Geography Faculty of Earth and Environmental SciencesUniversity of GuyanaP.O.Box 101110Turkeyen CampusGeorgetownGuyana Coastal and Estuarine Research Unit(CERU) Department of GeographyUniversity College LondonGower StreetLondonWC1E 6BTUnited Kingdom

Guyana’s capacity to address the impacts of climate change on its coastal environment requires the ability to mon-itor,quantify and understand coastal change over short-,medium-and *** the drivers of change in coastal and marine environment can be achieved through the accurate measurement and critical anal-yses of morphologies,flows,processes and *** manuscript presents a strategy developed to create a central resource,database and web-based platform to integrate data and information on the drivers and the changes within Guyana coastal and marine *** strategy involves four complimentary work pack-ages including data collection,development of a platform for data integration,application of the data for coastal change analyses and consultation with *** last aims to assess the role of the integrated data sys-tems to support strategic governance and sustainable *** is hoped that the output of this strategy would support the country’s climate-focused agencies,organisations,decision-makers,and researchers in their tasks and endeavours.

关键词： Climate adaptation Climate mitigation Data needs Data integration Web-based platform

Unexpected little helpers: microbiota stimulate systemic antiviral defenses

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Signal Transduction and Targeted Therapy 2022年第11期7卷 4001-4002页

作者： Susanne Klute helene Hoenigsperger Konstantin M.J.Sparrer Institute of Molecular Virology Ulm University Medical CenterUlm89081Germany

In a recent study published in Immunity by Erttmann et al.,an unexpected beneficial role of gut microbiota in protecting mice against invading viruses by promoting low levels of systemic innate immune activation via t... 详细信息

关键词： al. interferon ed.