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Faucher, Jean-Baptiste P.L.,Everett, Andre M.,Lawson, Rob Korea Data Strategy Society 2011 Journal of information technology applications & m Vol.18 No.1
A deeper understanding of how organizations behave as social complex adaptive systems is needed. In this paper we demonstrate how the Leadership Invigorating Flows of Energies model can help with this understanding. The model highlights the role of emergent leadership as a force encouraging the creation, diffusion, and utilization of knowledge through self-organizing mechanisms. We illustrate our approach by examining Wikipedia and show how it can be described as a social CAS. Our analysis of Wikipedia describes how emerging intrapreneurship behaviors result in dynamic flows of knowledge and self-organizing feedback mechanisms across the organization. We provide implications for organization studies and present evidence to support claims made by advocates of complexity theory. We conclude by proposing that Wikipedia can be seen as a new form of organization, and finish with a brief note highlighting a possible way forward.
Faucher, Jean-Baptiste P.L.,Everett, Andre M.,Lawson, Rob Korea Data Strategy Society 2010 Journal of information technology applications & m Vol.17 No.3
Existing models of knowledge processing do not feature a systemic meaning of knowledge management and ignore the role of leadership and social energy in the knowledge processing system (KPS). This conceptual paper introduces the Leadership Invigorating Flows of Energies, (LIFE) Model as an attempt to remedy that situation and provide a more useful description of the KPS. The LIFE Model highlights the role of emergent leadership and flows of social energies as forces encouraging knowledge creation and dynamic diffusion within an organization through the Knowledge Processing Cycle in eight activities interacting with its social knowledge base in a self-organizing system.
Jean-Baptiste P. L. Faucher,Andr? M. Everett,Rob Lawson 한국데이타베이스학회 2010 Journal of information technology applications & m Vol.17 No.3
Existing models of knowledge processing do not feature a systemic meaning of knowledge management and ignore the role of leadership and social energy in the knowledge processing system (KPS). This conceptual paper introduces the Leadership Invigorating Flows of Energies, (LIFE) Model as an attempt to remedy that situation and provide a more useful description of the KPS. The LIFE Model highlights the role of emergent leadership and flows of social energies as forces encouraging knowledge creation and dynamic diffusion within an organization through the Knowledge Processing Cycle in eight activities interacting with its social knowledge base in a self-organizing system.
Jean-Baptiste P. O. Faucher,Andre M. Everett,Rob Lawson 한국데이터전략학회 2010 Journal of information technology applications & m Vol.17 No.3
Existing models of knowledge processing do not feature a systemic meaning of knowledge manage-ment and ignore the role of leadership and social energy in the knowledge processing system (KPS). This conceptual paper introduces the Leadership Invigorating Flows of Energies, (LIFE) Model as an attempt to remedy that situation and provide a more useful description of the KPS. The LIFE Model highlights the role of emergent leadership and flows of social energies as forces encouraging know-ledge creation and dynamic diffusion within an organization through the Knowledge Processing Cycle in eight activities interacting with its social knowledge base in a self-organizing system.
Jean-Baptiste P. L. Faucher,Andr? M. Everett,Rob Lawson 한국데이타베이스학회 2011 Journal of information technology applications & m Vol.18 No.1
A deeper understanding of how organizations behave as social complex adaptive systems is needed. In this paper we demonstrate how the Leadership Invigorating Flows of Energies model can help with this understanding. The model highlights the role of emergent leadership as a force encouraging the creation. diffusion. and utilization of knowledge through self-organizing mechanisms. We illustrate our approach by examining Wikipedia and show how it can be described as a social CAS. Our analysis of Wikipedia describes how emerging intrapreneurship behaviors result in dynamic flows of knowledge and self-organizing feedback mechanisms across the organization. We provide implications for organization studies and present evidence to support claims made by advocates of complexity theory. We conclude by proposing that Wikipedia can be seen as a new form of organization, and finish with a brief note highlighting a possible way forward.
Analytical model of transverse pressure loss in a rod array
Ricciardi Guillaume,Peybernes Jean,Faucher Vincent 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.7
The present paper proposes some new computational methods and results in the framework of flow computation through congested domains seen as porous media, as it can be found in the core of a Pressurized Water Reactor (PWR). The flow is thus mostly governed by the distribution of pressure losses, both through the porous structures, such as fuel assemblies, and in the thin fluid layers between them. The purpose of the present paper is to consider the question of the interaction of a flow and a rod bundle from an analytical point of view gathering all the contributions through a set of equations as simple and representative as possible. It aims at demonstrating a sound understanding of the relevant phenomena governing the flow establishment in the geometry of interest instead of relying mainly on a posteriori observations obtained both experimentally and numerically. Comparison with two set of experimental results showed good agreement. The model proposed being analytical it appears easily implementable for studies needing an expression of fluid forces in a rod array as for fuel assembly bowing issue. It would be interesting to test the reliability of the model on other geometry with different P/R ratios.
FIRE-2 simulations: physics versus numerics in galaxy formation
Hopkins, Philip F,Wetzel, Andrew,Kereš,, Duš,an,Faucher-Giguè,re, Claude-André,Quataert, Eliot,Boylan-Kolchin, Michael,Murray, Norman,Hayward, Christopher C,Garrison-Kimmel, Shea Oxford University Press 2018 MONTHLY NOTICES- ROYAL ASTRONOMICAL SOCIETY Vol.480 No.1
Trigui, Hana,Dudyk, Paulina,Oh, Jinrok,Hong, Jong-In,Faucher, Sebastien P. American Society for Microbiology 2015 Applied and environmental microbiology Vol.81 No.3
<P><I>Legionella pneumophila</I> is a waterborne pathogen, and survival in the aquatic environment is central to its transmission to humans. Therefore, identifying genes required for its survival in water could help prevent Legionnaires' disease outbreaks. In the present study, we investigate the role of the sigma factor RpoS in promoting survival in water, where <I>L. pneumophila</I> experiences severe nutrient deprivation. The <I>rpoS</I> mutant showed a strong survival defect compared to the wild-type strain in defined water medium. The transcriptome of the <I>rpoS</I> mutant during exposure to water revealed that RpoS represses genes associated with replication, translation, and transcription, suggesting that the mutant fails to shut down major metabolic programs. In addition, the <I>rpoS</I> mutant is transcriptionally more active than the wild-type strain after water exposure. This could be explained by a misregulation of the stringent response in the <I>rpoS</I> mutant. Indeed, the <I>rpoS</I> mutant shows an increased expression of <I>spoT</I> and a corresponding decrease in the level of (p)ppGpp, which is due to the presence of a negative feedback loop between RpoS and SpoT. Therefore, the lack of RpoS causes an aberrant regulation of the stringent response, which prevents the induction of a successful response to starvation.</P>
Hélène Meillat,Cloé Magallon,Clément Brun,Cécile de Chaisemartin,Laurence Moureau-Zabotto,Julien Bonnet,Marion Faucher,Bernard Lelong 대한대장항문학회 2021 Annals of Coloproctolgy Vol.37 No.4
Purpose: Enhanced Recovery After Surgery (ERAS) programs advocate early urinary catheter removal after rectal cancer surgery; however, the optimal duration remains unclear. This study assessed the feasibility of the early urinary catheter removal protocol after rectal cancer surgery within an ERAS pathway and identified predictive factors for failure of this strategy.Methods: Between March 2017 and October 2018, all unselected and consecutive patients who underwent rectal cancer resection and benefited from our ERAS program were included. Urinary complications (infection and retention) were prospectively recorded. Success was defined as catheter removal on postoperative day (POD) 3 without urinary complications.Results: Of 135 patients (male, 63.7%; neoadjuvant chemoradiation, 57.0%; urology history, 17.8%), 120 had early urinary catheter removal with no complications (success rate, 88.9%), 8 did not have urinary catheter removal on POD 3 due to clinical judgment or prescription error, 5 experienced a urinary tract infection, and 2 had acute urinary retention. Obesity (odds ratio [OR], 0.16; P = 0.003), American Society of Anesthesiologists physical status classification > II (OR, 0.28; P = 0.048), antiaggregant platelet medication (OR, 0.12; P < 0.001), absence of anastomosis (OR, 0.1; P = 0.003), and prolonged operative time (OR, 0.21; P = 0.020) were predictive factors for failure. Conversely, optimal compliance with the ERAS program (OR, 7.68; P < 0.001), postoperative nonsteroidal anti-inflammatory drug use (OR, 21.71; P < 0.001), and balanced intravenous fluid therapy (OR, 7.87; P = 0.001) were associated with increased strategy success.Conclusion: Withdrawal of the urinary catheter on POD 3 was successfully achieved after laparoscopic rectal resection and can be safely implemented in the ERAS program.
Yoon, Ji Woong,Chang, Hyunju,Lee, Seung-Joon,Hwang, Young Kyu,Hong, Do-Young,Lee, Su-Kyung,Lee, Ji Sun,Jang, Seunghun,Yoon, Tae-Ung,Kwac, Kijeong,Jung, Yousung,Pillai, Renjith S.,Faucher, Florian,Vimo Nature Publishing Group 2017 Nature Materials Vol.16 No.5
<P>Selective dinitrogen binding to transition metal ions mainly covers two strategic domains: biological nitrogen fixation catalysed by metalloenzyme nitrogenases(1-3), and adsorptive purification of natural gas and air(4-6). Many transition metal-dinitrogen complexes have been envisaged for biomimetic nitrogen fixation to produce ammonia(3). Inspired by this concept, here we report mesoporous metal-organic framework materials containing accessible Cr(III) sites, able to thermodynamically capture N-2 over CH4 and O-2. This fundamental study integrating advanced experimental and computational tools confirmed that the separation mechanism for both N-2/CH4 and N-2/O-2 gas mixtures is driven by the presence of these unsaturated Cr(III) sites that allows a much stronger binding of N-2 over the two other gases. Besides the potential breakthrough in adsorption-based technologies, this proof of concept could open new horizons to address several challenges in chemistry, including the design of heterogeneous biomimetic catalysts through nitrogen fixation.</P>