28 research outputs found
A review of wildland fire spread modelling, 1990-present, 1: Physical and quasi-physical models
In recent years, advances in computational power and spatial data analysis
(GIS, remote sensing, etc) have led to an increase in attempts to model the
spread and behaviour of wildland fires across the landscape. This series of
review papers endeavours to critically and comprehensively review all types of
surface fire spread models developed since 1990. This paper reviews models of a
physical or quasi-physical nature. These models are based on the fundamental
chemistry and/or physics of combustion and fire spread. Other papers in the
series review models of an empirical or quasi-empirical nature, and
mathematical analogues and simulation models. Many models are extensions or
refinements of models developed before 1990. Where this is the case, these
models are also discussed but much less comprehensively.Comment: 31 pages + 8 pages references + 2 figures + 5 tables. Submitted to
International Journal of Wildland Fir
Viral to metazoan marine plankton nucleotide sequences from the Tara Oceans expedition
A unique collection of oceanic samples was gathered by the Tara Oceans expeditions (2009â2013), targeting plankton organisms ranging from viruses to metazoans, and providing rich environmental context measurements. Thanks to recent advances in the field of genomics, extensive sequencing has been performed for a deep genomic analysis of this huge collection of samples. A strategy based on different approaches, such as metabarcoding, metagenomics, single-cell genomics and metatranscriptomics, has been chosen for analysis of size-fractionated plankton communities. Here, we provide detailed procedures applied for genomic data generation, from nucleic acids extraction to sequence production, and we describe registries of genomics datasets available at the European Nucleotide Archive (ENA, www.ebi.ac.uk/ena). The association of these metadata to the experimental procedures applied for their generation will help the scientific community to access these data and facilitate their analysis. This paper complements other efforts to provide a full description of experiments and open science resources generated from the Tara Oceans project, further extending their value for the study of the worldâs planktonic ecosystems
Viral to metazoan marine plankton nucleotide sequences from the Tara Oceans expedition
A unique collection of oceanic samples was gathered by the Tara Oceans expeditions (2009-2013), targeting plankton organisms ranging from viruses to metazoans, and providing rich environmental context measurements. Thanks to recent advances in the field of genomics, extensive sequencing has been performed for a deep genomic analysis of this huge collection of samples. A strategy based on different approaches, such as metabarcoding, metagenomics, single-cell genomics and metatranscriptomics, has been chosen for analysis of size-fractionated plankton communities. Here, we provide detailed procedures applied for genomic data generation, from nucleic acids extraction to sequence production, and we describe registries of genomics datasets available at the European Nucleotide Archive (ENA, www.ebi.ac.uk/ena). The association of these metadata to the experimental procedures applied for their generation will help the scientific community to access these data and facilitate their analysis. This paper complements other efforts to provide a full description of experiments and open science resources generated from the Tara Oceans project, further extending their value for the study of the world's planktonic ecosystems
ActionMap: a web-based software that automates loci assignments to framework maps
Genetic linkage computation may be a repetitive and time consuming task, especially when numerous loci are assigned to a framework map. We thus developed ActionMap, a web-based software that automates genetic mapping on a fixed framework map without adding the new markers to the map. Using this tool, hundreds of loci may be automatically assigned to the framework in a single process. ActionMap was initially developed to map numerous ESTs with a small plant mapping population and is limited to inbred lines and backcrosses. ActionMap is highly configurable and consists of Perl and PHP scripts that automate command steps for the MapMaker program. A set of web forms were designed for data import and mapping settings. Results of automatic mapping can be displayed as tables or drawings of maps and may be exported. The user may create personal access-restricted projects to store raw data, settings and mapping results. All data may be edited, updated or deleted. ActionMap may be used either online or downloaded for free (http://moulon.inra.fr/~bioinfo/)
Optimisation de lâinsertion dâimplants orthopĂ©diques non cimentĂ©s par une mĂ©thode acoustique basĂ©e sur lâanalyse de la force dâimpact
Selon la Haute AutoritĂ© de SantĂ© (HAS), environ 150 000 personnes subissent chaque annĂ©e en France une pose de ProthĂšse Totale de Hanche (PTH). MalgrĂ© la frĂ©quence de lâintervention, environ 5% Ă 10% dâĂ©checs sont constatĂ©s dans les 10 ans suivant lâopĂ©ration [1], ce qui pĂ©nalise les patients et engendre des coĂ»ts pour le systĂšme de santĂ©. Dans le cas dâimplants non-cimentĂ©s, la stabilitĂ© primaire de lâimplant est en effet obtenue grĂące aux contraintes qui sâexercent Ă lâinterface avec lâos dues Ă un sous-dimensionnement de la cavitĂ© osseuse par rapport Ă la taille de lâimplant. Lâenjeu pour le chirurgien est donc dâinsĂ©rer suffisamment lâimplant afin dâĂ©viter la crĂ©ation de micro- mouvements sans nĂ©anmoins provoquer de fracture pĂ©ri-prothĂ©tique. Or, le chirurgien ne dispose dâaucun outil dâĂ©valuation en temps-rĂ©el de lâĂ©tat de stabilitĂ© de lâimplant dans lâos et se base actuellement sur le son produit par le marteau lors de lâimpact [2]. Dans cette Ă©tude qui porte sur la tige fĂ©morale, nous nous intĂ©resserons au signal de la force dâinsertion, enregistrĂ©e grĂące Ă un capteur de force prĂ©sent sur la face dâimpact du marteau orthopĂ©dique. Nous montrerons que la forme du signal Ă©volue avec lâĂ©tape dâinsertion de lâimplant dans lâos et avec son enfoncement. En particulier, lâintĂ©rĂȘt se portera sur lâĂ©tude des rebonds de la piĂšce impactĂ©e sur le marteau et un indicateur temporel, correspondant Ă la distance entre les deux premiers pics du signal, sera analysĂ© au cours de lâinsertion. Les rĂ©sultats de deux Ă©tudes in silico et ex vivo seront Ă©galement mis en perspective. Cette mesure dynamique des propriĂ©tĂ©s du systĂšme os-implant ouvre des perspectives quant au dĂ©veloppement dâun outil dâaide Ă la dĂ©cision pour les chirurgiens. [1] NJR. (2017) 14th Annual joint registry report [2] G. Whitwell et al., (2013) Proc Inst Mech Eng
THE OSTEOCYTE LACUNO-CANALICULAR NETWORK AT THE BONE-IMPLANT INTERPHASE IMAGED WITH FOCUSED ION BEAM -SCANNING ELECTRON MICROSCOPY
International audienc
THREE-DIMENSIONAL OSTEOCYTE LACUNO-CANALICULAR NETWORK AT THE BONE IMPLANT INTERFACE
International audienc
THREE-DIMENSIONAL OSTEOCYTE LACUNO-CANALICULAR NETWORK AT THE BONE IMPLANT INTERFACE
International audienc
THE OSTEOCYTE LACUNO-CANALICULAR NETWORK AT THE BONE-IMPLANT INTERPHASE IMAGED WITH FOCUSED ION BEAM -SCANNING ELECTRON MICROSCOPY
International audienc