Bibliografie tematiche / Identification de chemins de transition

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Letteratura scientifica selezionata sul tema "Identification de chemins de transition"

Autore: Grafiati
Pubblicato: 9 novembre 2024

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Articoli di riviste sul tema "Identification de chemins de transition"

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MacGregor, Catherine. "Les chemins vers une transition énergétique résiliente et compétitive". Hors les murs N° 506, n. 5 (28 marzo 2021): 15–17. http://dx.doi.org/10.3917/ehlm.506.0015.

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Chatel, B., J. Degert, S. Stock e B. Girard. "Interférences entre chemins quantiques dans une transition en échelons". Journal de Physique IV (Proceedings) 119 (novembre 2004): 151–52. http://dx.doi.org/10.1051/jp4:2004119032.

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Rottier, Frédéric. "Sur fond de pandémie, imaginer de nouveaux chemins de transition". Lumen Vitae Volume LXXVI, n. 1 (27 aprile 2021): 11–22. http://dx.doi.org/10.3917/lv.761.0011.

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Audousset-Coulier, Sophie, Christine Naaman e Matthäus Tekathen. "Tous les chemins mènent à Rome : Une perspective schatzkienne sur les pratiques de transition aux normes IFRS". Comptabilité Contrôle Audit Tome 29, n. 3 (17 aprile 2023): 7–42. http://dx.doi.org/10.3917/cca.293.0007.

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Dolgoshein, Boris. "Transition radiation detectors and particle identification". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 252, n. 2-3 (dicembre 1986): 137–44. http://dx.doi.org/10.1016/0168-9002(86)91174-5.

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Egorytchev, V., V. Saveliev e S. J. Aplin. "Particle identification via transition radiation and detectors". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 453, n. 1-2 (ottobre 2000): 346–52. http://dx.doi.org/10.1016/s0168-9002(00)00656-2.

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Hu, Min, Fang Fang Wu, Bo Zhu, Bo Lu e Jing Lei Pu. "A New Hazard Identification Method-State Transition Graph". Applied Mechanics and Materials 48-49 (febbraio 2011): 71–78. http://dx.doi.org/10.4028/www.scientific.net/amm.48-49.71.

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It is important and difficult to identify the Hazard before a disaster happen because disaster often happens suddenly. This paper proposes a new method – State Transition Graph, which based on visual data space reconstruction, to identify hazard. The change process of the system state movement from one state to another in a certain period is described by some state transition graphs. The system state, which is safe or hazard, could be distinguished by its state transition graphs. This paper conducted experiments on single-dimension and multi-dimension benchmark data to prove the new method is effectiveness. Especially the result of stimulation experiments, based on the Yangtze River tunnel engineering data, showed that state transition graph identifies hazard easily and has better performances than other method. The State transition graph method is worth further researching.
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Maghfiroh, Khoirin, e Deny Utomo. "Karakterisasi senyawa kompleks dengan logam transisi pada mikropartikel bunga cempaka (Magnolia champaca (L.) Baill. Ex Pierre) sebagai kandidat potensial nutrasetikal". Teknologi Pangan : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian 14, n. 2 (25 settembre 2023): 280–94. http://dx.doi.org/10.35891/tp.v14i2.4325.

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The components of complex compounds containing transition metals play a significant role in regulating the nutraceutical ability for disease prevention and treatment. The bonding of complex molecules with transition metals allows energy to be transferred between complex compounds that enter the body and systems within the body. The aim of this research was to investigate the composition of complex chemical components including transition metals used in the processing of M. champaca flowers for potential nutraceuticals. Transition metal identification (XRF), compound identification (LC-MS), functional group identification (FTIR), crystal character identification (XRD), particle surface morphology identification (SEM), particle size identification (PSA), and identification of physicochemical characters of Niacin complex with transition metals (SwissADME) are among the stages of the study. The results showed that the highest type of transition metal was Fe, containing to 0.42%, Niacin group compounds identified were Nicotinic acid and Nicotinamide, in the region 505 - 405 cm-1, there is a transition metal bond with a Fe (Fe - O) functional group, solid particles in M. champaca microparticles were amorphous, peak peaks at an angle of 2ɵ 19,83°, Particle morphology is similar to powder on its surface, particles measuring 208.20 µm. The physicochemical properties of the Niacin complex with transition metals demonstrate that niacin group chemicals have different effects on nicotinic acid and nicotinamide. These complex chemicals are generally easily absorbed by body systems. Since the synthesis of niacin complexes with transition metals has improved physicochemical properties, it could be employed as a possible nutraceutical candidate.
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Hubbard, Amber M., Yixin Ren, Dominik Konkolewicz, Alireza Sarvestani, Catalin R. Picu, Gary S. Kedziora, Ajit Roy, Vikas Varshney e Dhriti Nepal. "Vitrimer Transition Temperature Identification: Coupling Various Thermomechanical Methodologies". ACS Applied Polymer Materials 3, n. 4 (4 marzo 2021): 1756–66. http://dx.doi.org/10.1021/acsapm.0c01290.

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Pachmayer, Yvonne. "Particle identification with the ALICE transition radiation detector". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 766 (dicembre 2014): 292–95. http://dx.doi.org/10.1016/j.nima.2014.05.002.

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Più fonti

Tesi sul tema "Identification de chemins de transition"

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Monet, Damien. "Identification de nouvelles voies d'inhibition ciblant les mouvements fonctionnels de protéines : application à la transition allostérique du récepteur nicotinique de l'acétylcholine". Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS206.

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Abstract (sommario):
L'étude de la dynamique fonctionnelle de protéines impliquées dans des processus pathologiques et des évolutions associées de leurs cavités et poches, offre de nouvelles stratégies pour le dessin de molécules effectrices. Ce travail décrit la transition d'activation d'un récepteur nicotinique de l'acétylcholine, le sous-type (a7)5, qui est impliqué dans des processus cognitifs et certains désordres neurodégénératifs, ce qui en fait une cible thérapeutique de choix. Le processus d'activation du récepteur a été modélisé par une série de conformations intermédiaires reliant les états de repos et actif. Notre modèle de transition reproduit correctement les mouvements quaternaires connus, le blooming et le twisting. Parallèlement, nous avons mis au point un algorithme robuste permettant de donner une vision unitaire des cavités issues de conformations structurales différentes. Ces groupes cohérents de cavités définissent des poches, sites potentiels pour la liaison de ligands. Un programme, mkgridXf, implémente le suivi des cavités et l'identification cohérente de sites sur les trajectoires de protéines. La cartographie des cavités de la transition (a7)5 a révélé 6 sites dont le volume varie de façon significative avec l'état conformationnel. Parmi eux, nous retrouvons le site orthostérique, le site modulateur Ca2+ ainsi que 2 sites allostériques précédemment décrits. L'amarrage moléculaire de modulateurs allostériques sur les structures de la transition permet de proposer l'existence d'un site de liaison transmembranaire. Ces données suggèrent de nouvelles routes de dessins d'effecteurs ayant des activités ciblées
The analysis of the functional motion of proteins involved in various diseases and the associated evolution of cavities and grooves offers novel strategies to identify effector molecules. This work describes the gating mechanism of a nicotinic acetylcholine receptor, the (a7)5 subtype, involved in cognitive processes and various neurological disorders. The activation mechanism has been modeled by a series of intermediate conformations linking the resting and the active states of the receptor. Our transition model correctly reproduced the known quaternary motion, the blooming and the twisting. We also developed a robust algorithm to consistently track cavities in protein dynamics. Groups of protein cavities define pockets, potential binding sites for small molecules. A practical implementation, mkgridXf, is given to automatically track and identify sites in protein trajectories. The complete mapping of cavities on the (a7)5 transition structures revealed 6 distinct sites with a volume varying significantly with the conformational state of the protein. Among them, we found the orthosteric site, the Ca2+ modulatory site and 2 previously described allosteric sites. The molecular docking of allosteric modulators along the gating transition suggested the existence of an effector transmembrane site. These results paves the way toward the design of drugs with targeted activities
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Milia, Valentin. "Couplage de modèles de chimie quantique et d'algorithmes haute performance pour l'exploration globale du paysage énergétique de systèmes atomiques et moléculaires". Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP095.

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Abstract (sommario):
L'objectif principal de cette thèse est de développer des méthodes efficaces pour caractériser les conformations des molécules à un niveau quantique. Différentes méthodes dédiées au calcul de l'énergie potentielle d’une molécule sont examinées, ainsi que les schémas d'exploration globale des surfaces d'énergie potentielle (SEP) les plus populaires sont présentés. Une contribution clé de cette thèse est le couplage de la méthode IGLOO (Iterative Global exploration and LOcal Optimization), inspirée de la robotique, mise en œuvre dans le logiciel MoMA, avec le potentiel basé sur la “Density-Functional based Tight-Binding” (DFTB), implémenté dans le logiciel deMonNano. IGLOO intègre l'algorithme de planification de mouvement “Rapidly-exploring Random Trees” (RRT) avec des optimisations locales de l’énergie et un filtrage des structures. Une preuve de concept a été réalisée par l'identification des conformations de basse énergie de la molécule de d'alanine dipeptide.Le couplage IGLOO/DFTB a été appliqué à la cartographie des SEP de trois molécules de taille proche de la famille des phtalates (dibutyl phtalate DBP, benzyl butyl phtalate BBP et di-2-éthylhexyl phtalate DEHP), donnant un aperçu détaillé de leurs différents paysages conformationnels. Divers descripteurs géométriques ont été utilisés pour analyser leurs relations structure-énergie. Les interactions de Coulomb, l'encombrement stérique et les interactions dispersives sont à l'origine des propriétés géométriques et une forte corrélation a été mise en évidence entre les deux angles diédraux décrivant l'orientation des chaînes latérales des molécules de phtalate.En complément, un algorithme innovant pour la génération à grande échelle de molécules, incluant une variété de conformations, est présenté. Il combine la génération de graphes de molécules avec des techniques d'ajout d'atomes ou de fragments. Il est appliqué pour fournir une vaste base de données de structures 3D de molécules de carbone amorphe hydrogéné (a-CH). L'analyse de la base de données générée dans cette étude permet de comprendre la relation entre les descripteurs géométriques et électroniques des structures a-C:H. Ces propriétés sont comparées à celles des hydrocarbures aromatiques polycycliques (HAP) compacts et des chaînes linéaires, qui représentent des cas limites.Enfin, une revue des méthodes visant à identifier les points de selle et les chemins de transition entre les conformations de faible énergie sur la SEP est présentée. Une première étape pour l'identification des chemins de transition entre les conformations de faible énergie à l'aide d'un algorithme de planification de mouvement, connu sous le nom de Transition-based RRT (T-RRT), est présentée. Une mesure de similarité, désignée sous le nom de Symmetrized Segment-Path Distance (SSPD), est utilisée pour comparer les trajectoires générées. Ensuite, une technique de regroupement, à savoir Analyse de regroupement hiérarchique (HCA), est employée pour regrouper les trajectoires afin d'identifier les classes de chemin donnant la dynamique des changements de conformation. La méthodologie a été appliquée avec succès à l'identification de chemins à faible énergie entre deux minima de la SEP de l’alanine dipeptide.Dans l'ensemble, les travaux présentent des avancées significatives dans l'exploration de SEP de molécules complexes au niveau quantique, y compris (i) le couplage IGLOO/DFTB (ii) un nouvel algorithme pour la génération de structures 3D de molécules à grande échelle et (iii) un schéma original permettant l'identification de multiples chemins de transition. Des corrélations entre les propriétés structurelles, énergétiques et électroniques ont été mises en évidence pour les molécules polluantes de la famille des phtalates ainsi que pour les a-CH ayant une importance du point de vue astrophysique. Ces contributions ouvrent la voie à de futures recherches visant à étendre ces méthodes à des systèmes plus grands et plus complexes
The primary aim of this thesis is to develop efficient methods for characterizing molecular conformations at a quantum level. Various methods devoted to the computation of molecular potential energy are reviewed, as well as the most popular potential energy surfaces (PES) global exploration schemes. In this context, a key contribution of this thesis is the coupling of the robotics-inspired Iterative Global exploration and LOcal Optimization (IGLOO) method, implemented in the MoMA software, with the quantum Density-Functional based Tight-Binding (DFTB) potential, implemented in the deMonNano software. The IGLOO algorithm integrates the motion planning Rapidly-exploring Random Trees (RRT) algorithm with local optimization and structural filtering. A proof of concept has been done through the identification of low-energy conformations of the alanine dipeptide.The IGLOO/DFTB coupling has been applied to the mapping of the PES of three close-sized molecules of the phthalate family (dibutyl phthalate DBP, benzyl butyl phthalate BBP and di-2-ethylhexyl phthalate DEHP), providing detailed insights into their different conformational landscapes. Various geometrical descriptors have been used to analyze their structure-energy relationships. Coulomb interactions, steric hindrance, and dispersive interactions have been found to drive the geometric properties and a strong correlation has been evidenced between the two dihedral angles describing the side-chains orientation of the phthalate molecules. The results demonstrate the method's capability to identify low-energy minima without prior knowledge of the PES.Furthermore, an innovative algorithm for the large-scale generation of molecular structures, including a conformational variety, is presented. It combines molecular graph generation with atom or fragment addition techniques. It is applied to provide an extensive database of 3D structures of hydrogenated amorphous carbon (a-CH) molecules. The analysis of the database generated in this study provides a comprehensive understanding of the relationship between the geometrical and electronic descriptors of a-C:H structures. These properties are compared with those of compact Polycyclic Aromatic Hydrocarbons and linear chains, representing limit cases.Finally, a review is given on methods aiming at identifying saddle points and transition paths between low-energy conformations on the PES. A first step toward the identification of transition paths between low-energy conformations using a motion planning algorithm, known as Transition-based Rapidly-exploring Random Trees (T-RRT), is presented. A similarity measure, designated as the Symmetrized Segment-Path Distance (SSPD), is used to compare the generated trajectories. Subsequently, a clustering technique, namely the Hierarchical Clustering Analysis (HCA), is employed to group similar trajectories in order to identify the common pathways, thereby providing valuable insights into the dynamics of conformational changes. The methodology has been successfully applied to the identification of low-energy paths between two minima of the alanine dipeptide PES.Overall, the research presents significant advancements in the exploration of complex molecular PES at a quantum level including (i) the IGLOO/DFTB coupling (ii) a novel algorithm for 3D structure generation of large-scale molecules and (iii) an original scheme allowing for the identification of multiple transition paths. Correlations between the structural, energetic and electronic properties have been evidenced for the polluting phthalate molecules and astrophysically relevant hydrogenated amorphous carbon (a-CH) molecules. These contributions pave the way for future research, aiming to extend these methods to larger and more complex systems
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Gauthier, Mathieu. "Identification et hiérarchisation des sources et chemins de transfert vibro-acoustiques d'un véhicule récréatif". Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11245.

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Une méthode systématique permettant d'identifier et de hiérarchiser les sources sonores soit la méthode d'analyse des chemins de transfert en condition opérationnelle (OTPA) d'un véhicule récréatif a été investiguée. Elle a permis d'identifier et d'hiérarchiser les sources et les chemins de transfert dominants selon un critère de moyenne du niveau global avec pondération C des contributions sur tous les régimes d'opération. Des solutions basées sur les règles de l'art du domaine de la vibro-acoustique ont ensuite été appliquées sur ces sources et chemins de transfert dominants. Une validation expérimentale sur les composants individuels a été accomplie afin de quantifier le niveau d'amélioration. La mise en oeuvre de ces composants modifiés et installés sur le véhicule a permis de réduire de façon majeure le niveau sonore perçu pour le conducteur et le passager du véhicule en plus d'en augmenter la qualité subjective. Avec la même méthodologie, la hiérarchisation de ces sources a permis de confirmer la diminution importante du contenu fréquentiel en moyenne et haute fréquence. Cependant, le niveau global à l'opérateur n'a pas toujours diminué, conséquence d'une augmentation du niveau selon les ordres moteur 1 et 2. Cette hausse de niveau n'est toutefois pas perceptible pour l'utilisateur. Un indice amélioré, tenant compte non seulement du niveau sonore mais aussi de la "perception de qualité sonore" sur lequel la hiérarchisation des sources devrait reposer, doit être développé.
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Jongsma, Michael Howard. "Care Transition Gaps: Risk Identification and Intervention". ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/446.

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Hospital readmissions related to chronic heart failure (CHF) are costly, widespread, and often avoidable. Patient education that includes diagnosis, causes, medications, diet, exercise, and exacerbation warning signs has been shown to reduce the number of CHF readmissions. The purpose of this study was to use risk stratification to identify CHF patients at high risk for 30-day readmission. Once a high-risk CHF patient was identified, nursing interventions would be triggered to reduce readmissions and close the gaps in the continuum of care following acute care admission. Transitions of care theory was used as the framework for this project. The methodology had a quality improvement focus. The patient population consisted of high-risk CHF patients (n = 25) with NYHA classification of II-IV using the risk identification tool. Patients were identified using the tool, were followed for 30 days, and received nursing interventions to reduce the possibility of readmission. Only one of the identified patients was readmitted within 30 days for a diagnosis unrelated to CHF, resulting in no readmissions within this sub group. This study suggests that risk stratification can identify and direct resources to CHF patients, decreasing their likelihood for readmission. Nurse leaders can use standardized tools such as the risk identification tool, thereby reducing readmissions along with associated costs for readmissions.
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Villamar, Daniel. "Chemins énergétiques à long terme en Équateur : scénarios de transition pour le secteur des transports jusqu'en 2050". Electronic Thesis or Diss., Perpignan, 2023. http://www.theses.fr/2023PERP0014.

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Cette thèse explore l'utilisation de modèles mathématiques pour accompagner une transition énergétique à faible émission de carbone pour l'Equateur. Une première approche considère une optimisation linéaire pour évaluer l'expansion des secteurs de l'énergie et de l'utilisation des terres et le modèle intégré ELENA est utilisé. Il est combiné avec le modèle de répartition urbs pour aller plus loin dans l'évaluation du système électrique face à une massification du transport électrique et il est également considéré dans le contexte d'une étude de synthèse axée sur la décarbonisation du secteur des bâtiments. La seconde approche de modélisation utilise les concepts de la théorie des jeux et plus particulièrement les modèles Single-Leader-Multi-Follower (SLMF). Une mise en oeuvre du modèle SLMF est effectuée pour le transport de marchandises afin de saisir l'effet d'une taxe carbone dans la transition vers des véhicules plus propres. Ce travail souligne la nécessité d'utiliser plusieurs modèles afin d'avoir une meilleure idée des interactions et des mesures à mettre en place pour soutenir la transition énergétique. Bien que l'étude soit réalisée pour l'Equateur, les méthodologies sont d'application générale
This thesis explores the use of mathematical models to support a low carbon energy transition for Ecuador. Afirst approach considers a least-cost linear optimisation to evaluate the expansion of energy and land-use sectors and the integrated model ELENA is used. It is combined with the dispatch model urbs to go further in the evaluation of electric system face to a massification of electric transport and it is also considered on the context of a synthesis study focused on the ecarbonization of the Buildings Sector. The secondmodelling approach uses concepts of game theory and specifically of Single-Leader-Multi-Follower (SLMF) models. An implementation of the SLMF model is done for freight transport to capture the effect of a carbon tax in the transition to cleaner vehicles. This work highlights the need to use multiple models in order to have a better idea of the interactions and measures to be put in place to support the energy transition. Although the study is carried out for Ecuador, the methodologies are of general applicability
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Chaumette, Boris. "Identification de facteurs biologiques de la transition psychotique". Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB046/document.

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La psychose est un syndrome apparaissant progressivement à l’adolescence chez des individus à risque selon un processus dynamique appelé transition psychotique. Ces individus à risque sont repérables cliniquement mais les données biologiques actuelles sont insuffisantes pour expliquer l’apparition de la psychose. Au cours de cette thèse, nous avons cherché à identifier les facteurs biologiques responsables de ce processus. Les hypothèses permettant d’expliquer la transition psychotique privilégient l’interaction gène x environnement, sous-tendue par des mécanismes épigénétiques. Nous avons mené une étude des modifications de la méthylation de l’ADN et de la transcription à l’aide de techniques de biologie moléculaire et de bio-informatique à l’échelle pan-génomique. La transition psychotique semble être liée à des modifications de méthylation et de transcription de gènes impliqués dans des mécanismes comme le guidage axonal ou la régulation du stress oxydatif. Ces modifications longitudinales pourraient refléter l’influence de l’environnement. Les facteurs environnementaux pourraient déréguler l’axe biologique du stress dès les phases précoces de la maladie, comme le suggère l’augmentation de la sécrétion de cortisol basal que nous avons montré chez les individus à risque. En outre, il est probable que des spécificités au niveau des gènes et des processus régulant l’épigénome soient également impliquées dans cette réponse individuelle à l’environnement. Nous avons montré l’importance du métabolisme mono-carboné au moins dans un sous-groupe spécifique de patients. Ces résultats doivent être répliqués et étendus dans d’autres paradigmes pour valider l’implication de ces processus dans la transition psychotique. En cas de confirmation, ces voies biologiques pourraient s’avérer être des pistes intéressantes pour développer des thérapeutiques ciblées et relever le défi de la prévention de la psychose chez des individus à risque
Psychosis is a progressive mental disorder which normally occurs during adolescence in at-risk subjects following a dynamic process termed “psychotic transition”. These at-risk subjects are clinically identifiable but biological data are still insufficient in explaining the onset of psychosis. Throughout this thesis, we aim to identify biological factors implicated in this pathophysiological process. Current hypotheses explaining the psychotic transition favor the interaction between genes and the environment mediated by epigenetic mechanisms. We conducted studies examining methylomic and transcriptomic changes during psychotic transition using molecular biology and bioinformatics techniques at a whole genome scale. Our results suggest that psychotic transition may be linked to methylomic and transcriptomic changes in genes implicated in axon guidance or oxidative stress. These longitudinal changes could be related to environmental factors. Some of these factors could deregulate the hormonal stress response at the earliest phases of psychosis. Indeed, our results show that secretion of basal cortisol is increased in prodromal individuals. Moreover, it is likely that genes and processes regulating epigenetic modifications are also implicated in the individual response to the environment. We have shown the importance of the one-carbon metabolism for at least one sub-group of patients affected by psychosis. Our results should be replicated using other paradigms in order to definitively validate the implication of these various actors in the psychotic transition. If confirmed, knowledge of these biological mechanisms could lead to the development of targeted therapeutics to prevent psychosis in at-risk individuals
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Kunth, Antoine. "Chemins de fer en transition : le transport international de marchandises dans les pays d’Europe centrale et orientale, 1989-2004". Thesis, Paris Est, 2010. http://www.theses.fr/2010PEST1109.

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Abstract (sommario):
Cette thèse s’ouvre sur l’analyse de l’évolution spatiale des flux du transport ferroviaire de marchandises dans les Pays d’Europe centrale et orientale (PECO), depuis la chute du mur de Berlin en 1989 à l’adhésion à l’Union européenne en 2004. Au cours d’un peu plus d’une décennie, de profondes mutations ont contribué à ouvrir les PECO à l’Union européenne. La chute du mur s’est accompa gnée de la recomposition des réseaux ferroviaires, structurés désormais par les frontières nationales. Alors même que la demande du transport évolue sous l’effet des échanges commerciaux dont la nature et les origines-destinations changent en profondeur et privilégient le transport routier, les chemins de fer doivent affronter d’autres facteurs d’incertitudes liés à la transition, telles que les réformes engagées par l’Etat dans le cadre des négotiations d’entrée des PECO à l’Union Européenne. Les chemins de fer réagissent pas la mise en place de stratégies de survie et parfois même de réhabilitation d’institutions de la période socialiste tombées en désuétude durant la première phase de la transition. Tout au long de la transition, les chemins de fer présentent une puissante force d’inertie aux changements, notamment au travers d’une forme d’adhérence du réseau d’infrastructure au territoire, tout en incarnant une forme de stabilité dans les périodes de mutations propres à la transition
This thesis begins with the analysis of the freight transportation flows in the Central and Eastern European Countries (CEECs), from 1989 up to membership of the European Union (EU) in 2004. During more than a decade, the CEECs have gone through deep political and macroeconomic structural changes that led to the opening up of the CEECs’ trade with the EU. The fall of the Berlin wall was followed by the reorientation and restructuring of the railway networks and services along the national borders, which are revealed by the freight flows. Although the transport demand changes as a result of the new trade exchanges, which give more importance to the road transport, railway networks are challenged by new factors of uncertainties generated by the transition process itself, such as the restructuring reforms initiated by CEECs’ governments, as part of the negotiations to enter the EU. Railways respond by implementing what is described as being surviv al strategies, and in some cases rehabilitate former socialist institutions that were actually abandoned in the early stage of the transition. Throughout the whole transition process, the railways demonstrate a strong capacity of inertia against change, whilst incarnating a needed form of stability during the periods of rapid and chaotic changes of transition
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Hussey, George S. "Identification of a Post-Transcriptional Mechanism Regulating Epithelial-Mesenchymal Transition". Cleveland State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=csu1354051158.

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Poure, Nadia. "Chemins de la parole : recherche clinique sur quelques cas de mutisme". Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC009.

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Quelles sont les modalités de conquête ou reconquête de la parole dans les situations cliniques de mutisme ? Le mutisme opère une mise en attente des processus de symbolisation. Cette mise en attente suppose cependant un travail de symbolisation souterrain, inconscient, dont le retour à la parole n’est que la partie émergée. Des exemples cliniques nous permettront de préciser deux chemins de symbolisation hors parole à travers :- Un usage particulier de la trace et de l’écriture à partir du cas clinique d’un enfant qui écrit avant de parler.- L’identification au muet sous la forme d’identification à l’inanimé et à l’animal, elle n’est pas seulement ce qui fait taire mais aussi ce qui permet de préserver les possibilités d’identification, de rejouer la rencontre au miroir.Nous serons amenés à nous interroger sur la perte de légitimité des mots qui conduit parfois au mutisme
What are the modalities of conquest or reconquest of the word in the clinical situations of mutism ? Mutism operates a stop of the processes of symbolization. This put on hold supposes, however, an underground, unconscious work of symbolization, the return to the word is only the emerged part of it. Clinical examples will allow us to specify two ways of symbolization except word through: - a particular use of the trace and the writing from the clinical case of a child who writes before speaking. - The identification to the mute under the form of identification to inanimate and to animal. Identification to the mute is not only what silences but also what makes it possible to replay the meeting in the mirror. We will be brought to wonder about the loss of legitimacy of the words which sometimes leads to mutism
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Guenfoud, Nassardin. "Étude vibroacoustique d'une suspension arrière de motoneige". Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9708.

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La problématique liée au bruit des motoneiges est un enjeu important dans l’industrie des véhicules récréatifs. Il est donc nécessaire de trouver de nouvelles solutions technologiques qui permettront de concevoir des motoneiges plus silencieuses. La suspension arrière est un élément contribuant aux transferts des vibrations du véhicule qui, par la suite, peuvent créer un rayonnement sonore. Pour identifier les chemins de transfert vibroacoustique une méthodologie type TPA (Transfer Path Analysis) et OTPA (Operational Transfer Path Analysis) est mise en place. Cela consiste à utiliser des procédés expérimentaux pour obtenir une modélisation matricielle vibroacoustique de la suspension. Les résultats obtenus seront ensuite validés expérimentalement et permettront de proposer des solutions technologiques qui pourront être intégrées sur les nouveaux prototypes de motoneige.
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Libri sul tema "Identification de chemins de transition"

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James, Davies Douglas, e Conference on Mormon Studies (1995 : University of Nottingham), a cura di. Mormon identities in transition. London: Cassell, 1996.

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S, Arturi Carlos, e Sánchez López Georgina, a cura di. Les chemins incertains de la démocratie en Amérique latine: Stratégies de transition et de consolidation politiques. Paris: L'Harmattan, 1993.

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1943-, Stein Murray, e Jones Raya A, a cura di. Cultures and identities in transition: Jungian perspectives. New York, NY: Routledge, 2010.

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Arnon, Ilan A. The influence of duration on formant transition detection and its effect on stop consonant identification. Ottawa: National Library of Canada, 1992.

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Joan, Offerman-Zuckerberg, a cura di. Gender in transition: A new frontier. New York: Plenum Medical Book Co., 1989.

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Bowlby, Jeffrey W. À la croisée des chemins: Premiers résultats pour la cohorte des 18 à 20 ans de l'Enquête auprès des jeunes en transition. Hull, PQ: Développement des ressources humaines Canada, 2002.

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Muggah, Robert. Securing Haiti's transition: Reviewing human insecurity and the prospects for disarmament, demobiliation, and reintegration = Haïti: les chemins de la transition : étude de l'insécurité humaine et des perspectives de désarmement, de démobilisation et de réintégration. Geneva: Small Arms Survey, 2005.

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Virginia. Dept. of Education. Identification of student internship programs (House Bill 507): Report of the Department of Education [on] to the Governor and the General Assembly of Virginia. Richmond: Commonwealth of Virginia, 1997.

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W, Steiner Betty, a cura di. Gender dysphoria: Development, research, management. New York: Plenum Press, 1985.

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W, Steiner Betty, a cura di. Gender dysophoria: Development, research, management. New York: Plenum, 1985.

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Capitoli di libri sul tema "Identification de chemins de transition"

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Singer, Bart A., e David C. Banks. "Vortex Identification and Analysis in Complex Flows". In Transition, Turbulence and Combustion, 319–27. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1032-7_31.

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Despić, Aleksandar R. "Identification of Phase Structure of Alloys by Anodic Linear Sweep Voltammetry". In Electrochemistry in Transition, 453–67. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-9576-2_28.

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Hömberg, Dietmar, Shuai Lu, Kenichi Sakamoto e Masahiro Yamamoto. "Nucleation Rate Identification in Binary Phase Transition". In The Impact of Applications on Mathematics, 227–43. Tokyo: Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54907-9_17.

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Lamont, Carina. "Identification and classification of armed conflicts". In International Law in the Transition to Peace, 137–64. London: Routledge, 2021. http://dx.doi.org/10.4324/9781003188698-13.

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Xu, Guanshuo, Shang Gao, Yun Qing Shi, RuiMin Hu e Wei Su. "Camera-Model Identification Using Markovian Transition Probability Matrix". In Digital Watermarking, 294–307. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03688-0_26.

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Srinivasan, Ashwin, Michael Bain, Deepika Vatsa e Sumeet Agarwal. "Identification of Transition Models of Biological Systems in the Presence of Transition Noise". In Inductive Logic Programming, 200–214. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40566-7_14.

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Ikoma, Tomoki, e Shigeki Matsubara. "Identification of Research Data References Based on Citation Contexts". In Digital Libraries at Times of Massive Societal Transition, 149–56. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-64452-9_13.

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Rey, Emmanuel, Martine Laprise e Sophie Lufkin. "Key Steps of a Regeneration Process". In Neighbourhoods in Transition, 97–109. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-82208-8_6.

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AbstractBecause of their inherent complexity, urban brownfield regeneration projects are long-term operations. The study of the evolution from urban brownfield site to a new—and ideally sustainable—neighbourhood through a regeneration process has led to the identification of five key steps: Backgrounds, Initiators, Guidelines, Legal Basis, and Realization. This chapter highlights the specific issues encountered during these different steps. Thus, our early reflections on the future of an urban brownfield at the regional and metropolitan levels concern the Background and Initiator steps. The formulation of a coherent project to overcome negative perception and foster a shared vision relates to the Guidelines steps. The transition from the urban to the architectural project is dealt with during the Legal Basis and Realization steps. Finally, issues concerning the multiple forms of participatory processes and the evaluation of sustainability objectives must be taken into consideration throughout the regeneration process. These reflections provide a foundation for developing a series of measures and more concrete lines of action.
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Williamson, Edwin, Walter E. Wilson, Kayla Pope e Catherine Fuchs. "What’s Next After High School: Exploring Options Through Identification of Individual Strengths and Needs". In Transition-Age Youth Mental Health Care, 345–56. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62113-1_17.

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van den Bos, Petra, e Frits Vaandrager. "State Identification for Labeled Transition Systems with Inputs and Outputs". In Formal Aspects of Component Software, 191–212. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40914-2_10.

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Atti di convegni sul tema "Identification de chemins de transition"

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Feng, Shumin, Mengwei Xin, Xishuang Han e Yali Sun. "Traffic State Identification Based on Phase Transition". In 19th COTA International Conference of Transportation Professionals. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482292.255.

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Saddek Bensalem, Moez Krichen e Stavros Tripakis. "State identification problems for input/output transition systems". In 2008 9th International Workshop on Discrete Event Systems. IEEE, 2008. http://dx.doi.org/10.1109/wodes.2008.4605949.

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Li, Liangda, Hongbo Deng, Yunlong He, Anlei Dong, Yi Chang e Hongyuan Zha. "Behavior Driven Topic Transition for Search Task Identification". In WWW '16: 25th International World Wide Web Conference. Republic and Canton of Geneva, Switzerland: International World Wide Web Conferences Steering Committee, 2016. http://dx.doi.org/10.1145/2872427.2883047.

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Bikbov, Ildus S., Ivan I. Popov e Anatolii N. Leukhin. "Visual method of identification of the resonant transition". In Eighth International Readings on Quantum Optics: IRQO '99, a cura di Vitaly V. Samartsev. SPIE, 2000. http://dx.doi.org/10.1117/12.375313.

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Wojdan, K., K. Swirski e M. Warchol. "Transition States Handling in Self-Adaptive Steady State Optimizer of Industrial Processes". In Modelling, Identification, and Control. Calgary,AB,Canada: ACTAPRESS, 2010. http://dx.doi.org/10.2316/p.2010.702-005.

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Li, Z. S., D. Mohapatra, W. Solowski, M. Saresma, J. Virtasalo e R. Khalili. "Geological, Geophysical, and Mechanical Identification of Marine Deposits From the Gulf of Finland". In Innovative Geotechnologies for Energy Transition. Society for Underwater Technology, 2023. http://dx.doi.org/10.3723/jdwj4235.

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The paper presents experimental results of investigations of offshore deposits from the Gulf of Finland in the Baltic Sea. Firstly, it briefly reviews the sedimentary history of the studied site. Then, it presents results from marine geological investigations, including seismoacoustic reflection sub-bottom profiles and long sediment cores collected by piston coring. Finally, the paper presents the physical and mechanical properties of the intact soil samples through geotechnical laboratory tests. The data show the distribution of water content, bulk density, undrained shear strength, sensitivity, and organic content of the samples at various depths up to approximately 4 meters. The undrained shear strengths, obtained by fall cone tests, are scattered and the variations are +-35% for the studied specimens. A quantitative correlation between geotechnical data and local sedimentary units and depositional history was not possible in this study. Further efforts are needed to reduce the uncertainties and measurement errors in determining the undrained shear strengths in geotechnical laboratory.
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Yagi, Shinnosuke, Yuji Waizumi, Hiroshi Tsunoda, Abbas Jamalipour, Nei Kato e Yoshiaki Nemoto. "Network Application Identification Using Transition Pattern of Payload Length". In 2008 IEEE Wireless Communications and Networking Conference. IEEE, 2008. http://dx.doi.org/10.1109/wcnc.2008.462.

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SAVELIEV, V. "MONTE CARLO SIMULATION OF TRANSITION RADIATION AND ELECTRON IDENTIFICATION". In Proceedings of the International Conference. WORLD SCIENTIFIC, 1996. http://dx.doi.org/10.1142/9789814447188_0026.

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Farahat, Waleed A., e H. Harry Asada. "Identification of Phenotypic State Transition Probabilities in Living Cells". In ASME 2009 Dynamic Systems and Control Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/dscc2009-2705.

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Living cells stochastically switch their phenotypic states in response to environmental cues to maintain persistence and viability. Estimating the state transition probabilities from biological observations of cell populations gives valuable insight to the underlying processes, and gives insights as to how the transition statistics are influenced by external factors. In this work, we present two Bayesian estimation approaches. The first is applicable when individual cell state trajectories are observed. The second approach is applicable when only aggregate population statistics are available. Estimation of transition probabilities when individual cell state trajectories are available is a straightforward problem, whereas estimation from only aggregate statistics can be computationally expensive. In the latter case, we present an algorithm that relies on three key ideas to cut down computational time: i) approximating high-dimensional multinomial distributions with multi-variate Gaussians, ii) employing Monte-Carlo techniques to efficiently integrate over high dimensional spaces, and iii) explicitly incorporating sampling constraints by computing lower dimensional distributions over the constrained variable. Simulation results demonstrate the viability of the algorithm.
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Inman (Wilkes), Jennifer, Paul Danehy, Robert Nowak e David Alderfer. "Identification of Instability Modes of Transition in Underexpanded Jets". In 38th Fluid Dynamics Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-4389.

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Rapporti di organizzazioni sul tema "Identification de chemins de transition"

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Swaby, James A., e James C. McAvin. Plasmodium Genus Assay Transition to the Joint Biological Agent Identification and Diagnostic System (JBAIDS). Fort Belvoir, VA: Defense Technical Information Center, luglio 2012. http://dx.doi.org/10.21236/ada564547.

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Sabbagh, S. Identification of, and transition to, the second region of ideal MHD stability in tokamaks. Office of Scientific and Technical Information (OSTI), gennaio 1990. http://dx.doi.org/10.2172/6896746.

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McAvin, James C., e Carl J. Mason. Norovirus Real Time RT-PCR Detection Technology Transition to the Joint Biological Identification and Diagnosis System (JBAIDS). Fort Belvoir, VA: Defense Technical Information Center, settembre 2012. http://dx.doi.org/10.21236/ada568257.

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Utsugi, Akio, e Motoyuki Akamatsu. Analysis of Car-Following Behavior Using Dynamic Probabilistic Models~Identification of Driving Mode Transition Using Dynamic Bayesian Networks. Warrendale, PA: SAE International, maggio 2005. http://dx.doi.org/10.4271/2005-08-0241.

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Hayes, Anne M. Assessment as a Service Not a Place: Transitioning Assessment Centers to School-Based Identification Systems. RTI Press, aprile 2020. http://dx.doi.org/10.3768/rtipress.2020.op.0064.2004.

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The World Health Organization and World Bank (2011) estimate that there are more than 1 billion people with disabilities in the world. To address this population’s diverse needs, the United Nations drafted their Convention on the Rights of Persons with Disabilities (CRPD) in 2006. Article 24 (Education) of the CRPD requires ratifying countries to develop an inclusive education system to address the educational needs of students with disabilities alongside their peers without disabilities. Despite substantive improvements and movement toward inclusive education, many low- and middle-income countries (LMICs) continue to struggle with accurately identifying and supporting students with disabilities, including knowing how to effectively screen, evaluate, and qualify students for additional services (Hayes, Dombrowski, Shefcyk, & Bulat, 2018a). These challenges stem from the lack of policies, practices, and qualified staff related to screening and identification. As a result, many students with less-apparent disabilities—such as children with learning disabilities—remain unidentified and do not receive the academic supports they need to succeed in school (Friend & Bursuck, 2012). This guide attempts to address the lack of appropriate, useful disability screening and identification systems and services as countries look to educate all students in inclusive settings. Specifically, this guide introduces viable options for screening and identification related to vision, hearing, and learning disabilities in inclusive classrooms in LMICs. It also provides guidance on how LMICs can transition from an assessment-center model toward a school-based identification model that better serves an inclusive education system.
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McGee, Steven, Randi McGee-Tekula e Jennifer Duck. Does a Focus on Modeling and Explanation of Molecular Interactions Impact Student Learning and Identity? The Learning Partnership, aprile 2017. http://dx.doi.org/10.51420/conf.2017.1.

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The Interactions curriculum and professional development program is designed to support high school teachers in their transition to the physical science Next Generation Science Standards. Through curriculum materials, an online portal for delivering the digital materials, interactive models of molecular phenomena, and educative teacher guide, teachers are able to support students in bridging the gap between macroscopic and sub-microscopic ideas in physical science by focusing on a modeling and explanation-oriented exploration of attractions and energy changes at the atomic level. During the fall semester of the 2015-16 school year, The Learning Partnership conducted a field test of Interactions with eleven teachers who implemented the curriculum across a diverse set of school districts. As part of the field test, The Learning Partnership examined the impact of teachers’ inquiry-based teaching practices on student learning and identification with the scientific enterprise. The results indicate that students had statistically significant growth in learning from the beginning to end of unit 2 and that the extent to which teachers engaged students in inquiry had a positive statistically significant influence on the growth rate and a statistically significant indirect impact on students’ identification with the scientific enterprise.
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Mariani, Lucas A., José Renato Haas Ornelas e Bernardo Ricca. Banks’ Physical Footprint and Financial Technology Adoption. Inter-American Development Bank, aprile 2023. http://dx.doi.org/10.18235/0004842.

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We investigate how the presence of physical bank branches moderates financial technology diffusion. Our identification strategy uses services suspensions caused by criminal groups that perform hit-and-run raids exploding branch facilities and rendering them inoperable for months. We show that the shock depletes the cash inventory of branches, but the stock of credit and deposits remain unaffected. We then document that customers increase their usage of noncash payments after the events. We investigate a new instant payment technology called Pix that was a remarkable success in terms of adoption. After robbery events, the number and value of Pix intra-municipality transactions increase, as well as the number of users. We also find Pix usage spillover effects that go beyond cash substitution. First, the number of Pix transactions and users also increases when either the payer or the payee is in an unaffected municipality. Second, we show that there are local spillovers to digital institutions, indicating that cash dependence can be an impediment to their expansion. Our results shed light on the determinants of technology adoption and the consequences of the recent transition in the banking industry from a physical branch-based model to an increasing reliance on digital services.
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Douglas, Thomas A., Christopher A. Hiemstra, Stephanie P. Saari, Kevin L. Bjella, Seth W. Campbell, M. Torre Jorgenson, Dana R. N. Brown e Anna K. Liljedahl. Degrading Permafrost Mapped with Electrical Resistivity Tomography, Airborne Imagery and LiDAR, and Seasonal Thaw Measurements. U.S. Army Engineer Research and Development Center, luglio 2021. http://dx.doi.org/10.21079/11681/41185.

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Accurate identification of the relationships between permafrost extent and landscape patterns helps develop airborne geophysical or remote sensing tools to map permafrost in remote locations or across large areas. These tools are particularly applicable in discontinuous permafrost where climate warming or disturbances such as human development or fire can lead to rapid permafrost degradation. We linked field-based geophysical, point-scale, and imagery surveying measurements to map permafrost at five fire scars on the Tanana Flats in central Alaska. Ground-based elevation surveys, seasonal thaw-depth profiles, and electrical resistivity tomography (ERT) measurements were combined with airborne imagery and light detection and ranging (LiDAR) to identify relationships between permafrost geomorphology and elapsed time since fire disturbance. ERT was a robust technique for mapping the presence or absence of permafrost because of the marked difference in resistivity values for frozen versus unfrozen material. There was no clear relationship between elapsed time since fire and permafrost extent at our sites. The transition zone boundaries between permafrost soils and unfrozen soils in the collapse-scar bogs at our sites had complex and unpredictable morphologies, suggesting attempts to quantify the presence or absence of permafrost using aerial measurements alone could lead to incomplete results. The results from our study indicated limitations in being able to apply airborne surveying measurements at the landscape scale toward accurately estimating permafrost extent.
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Czajka, Leo, Florence Kondylis, Bassirou Sarr e Mattea Stein. Data Management at the Senegalese Tax Authority: Insights from a Long-term Research Collaboration. Institute of Development Studies, dicembre 2022. http://dx.doi.org/10.19088/ictd.2022.020.

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As they increasingly adopt digital infrastructure, public administrations worldwide are increasingly collecting, generating and managing data. Empirical researchers are, at the same time, collaborating more and more with administrations, accessing vast amounts of data, and setting new research agendas. These collaborations have taken place in low-income countries in particular, where administrative data can be a valuable substitute for scarce survey data. However, the transition to a full-fledged digital administration can be a long and difficult process, sharply contrasting the common leap-frog narrative. Based on observations made during a five-year research collaboration with the Senegalese tax administration, this qualitative case study discusses the main data management challenges the tax administration faces. Much progress has recently been made with the modernisation of the administration’s digital capacity ,and adoption of e-filling and e-payment systems. However, there remains substantial scope for the administration to enhance data management and improve its efficiency in performing basic tasks, such as the identification of active taxpayers or the detection of various forms of non-compliance. In particular, there needs to be sustained investment in human resources specifically trained in data analysis. Recently progress has been made through creating – in collaboration with the researchers – a ‘datalab’ that now works to improve processes to collect, clean, merge and use data to improve revenue mobilisation.
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Wagner, D. Ry, Eliezer Lifschitz e Steve A. Kay. Molecular Genetic Analysis of Flowering in Arabidopsis and Tomato. United States Department of Agriculture, maggio 2002. http://dx.doi.org/10.32747/2002.7585198.bard.

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The primary objectives for the US lab included: the characterization of ELF3 transcription and translation; the creation and characterization of various transgenic lines that misexpress ELF3; defining genetic pathways related to ELF3 function regulating floral initiation in Arabidopsis; and the identification of genes that either interact with or are regulated by ELF3. Light quality, photoperiod, and temperature often act as important and, for some species, essential environmental cues for the initiation of flowering. However, there is relatively little information on the molecular mechanisms that directly regulate the developmental pathway from the reception of the inductive light signals to the onset of flowering and the initiation of floral meristems. The ELF3 gene was identified as possibly having a role in light-mediated floral regulation since elj3 mutants not only flower early, but exhibit light-dependent circadian defects. We began investigating ELF3's role in light signalling and flowering by cloning the ELF3 gene. ELF3 is a novel gene only present in plant species; however, there is an ELF3 homolog within Arabidopsis. The Arabidopsis elj3 mutation causes arrhythmic circadian output in continuous light; however, we show conclusively normal circadian function with no alteration of period length in elj3 mutants in dark conditions and that the light-dependent arrhythmia observed in elj3 mutants is pleiotropic on multiple outputs regardless of phase. Plants overexpressing ELF3 have an increased period length in constant light and flower late in long-days; furthermore, etiolated ELF3-overexpressing seedlings exhibit a decreased acute CAB2 response after a red light pulse, whereas the null mutant is hypersensitive to acute induction. This finding suggests that ELF3 negatively regulates light input to both the clock and its outputs. To determine whether ELF3's action is phase dependent, we examined clock resetting by light pulses and constructed phase response curves. Absence of ELF3 activity causes a significant alteration of the phase response curve during the subjective night, and overexpression of ELF3 results in decreased sensitivity to the resetting stimulus, suggesting that ELF3 antagonizes light input to the clock during the night. Indeed, the ELF3 protein interacts with the photoreceptor PHYB in the yeast two-hybrid assay and in vitro. The phase ofELF3 function correlates with its peak expression levels of transcript and protein in the subjective night. ELF3 action, therefore, represents a mechanism by which the oscillator modulates light resetting. Furthermore, flowering time is dependent upon proper expression ofELF3. Scientifically, we've made a big leap in the understanding of the circadian system and how it is coupled so tightly with light reception in terms of period length and clock resetting. Agriculturally, understanding more about the way in which the clock perceives and relays temporal information to pathways such as those involved in the floral transition can lead to increased crop yields by enabling plants to be grown in suboptimal conditions.
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