Letteratura scientifica selezionata sul tema "Risque de transition"
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Articoli di riviste sul tema "Risque de transition":
1
Fakra, E. "Comportements prédictifs d’un risque de transition psychotique". Bulletin de l'Académie Nationale de Médecine 206, n. 3 (marzo 2022): 310–16. http://dx.doi.org/10.1016/j.banm.2022.01.015.
2
Narvey, Michael R., e Seth D. Marks. "Le dépistage et la prise en charge des nouveau-nés à risque d’hypoglycémie". Paediatrics & Child Health 24, n. 8 (dicembre 2019): 545–54. http://dx.doi.org/10.1093/pch/pxz135.
Abstract (sommario):
Résumé L’hypoglycémie entre les premières heures et les premiers jours suivant la naissance demeure l’une des principales affections qu’observent les praticiens du Canada qui s’occupent de nouveau-nés. Bien des cas vivent une transition physiologique normale à la vie extra-utérine, mais un groupe présente une hypoglycémie pendant une plus longue période. Le présent document de principes expose les principaux enjeux auxquels sont exposés les dispensateurs de soins néonatals, y compris la définition d’hypoglycémie, les facteurs de risque, les protocoles de dépistage, les valeurs de glycémie nécessitant une intervention et la gestion des soins pour cette affection. Les auteurs passent en revue le dépistage, la surveillance et les protocoles d’intervention pour mieux distinguer, prendre en charge et traiter les nouveau-nés à risque d’hypoglycémie persistante, récurrente ou marquée. Ils abordent également le rôle des gels de dextrose pour accroître la glycémie ou prévenir une hypoglycémie plus persistante, de même que les précautions à prendre pour réduire les risques de récurrence après le congé de l’hôpital. Le présent document de principes distingue les approches des soins de l’hypoglycémie pendant la « phase de transition » (les 72 premières heures de vie) de celles de l’hypoglycémie persistante, qui se manifeste ou est constatée pour la première fois après cette période.
3
Bouisset, Christine, Sylvie Clarimont e Julien Rebotier. "L'approche territoriale : une condition de l'apport de la résilience à la prévention des désastres". La Houille Blanche, n. 2 (aprile 2018): 29–37. http://dx.doi.org/10.1051/lhb/2018018.
Abstract (sommario):
Ce travail a pour objectif d'identifier à quelles conditions l'idée de résilience peut, malgré ses faiblesses conceptuelles, contribuer de manière significative à la prévention des risques de désastres. Deux conditions nous semblent déterminantes : la question de lagouvernanceet la reconnaissance de lapluralité des acteurs. Une approche territoriale du bassin industriel de Lacq, autour d'une conception du risque plus constructiviste que naturaliste, fonde la réflexion. Le bassin est concerné par des risques multiples, des futurs incertains et des dynamiques territoriales changeantes. On trouverait là " en principe " des conditions appropriées pour mobiliser la notion de résilience. Mais dans les faits, la notion de résilience ne fait pas partie du vocabulaire des acteurs de terrain et malgré un discours dominant sur la " culture du risque " le rapport à celui-ci est pluriel. L'approche territoriale permet de contextualiser les ressorts de la résilience en mettant l'accent sur les effets de contexte, les rapports de force entre acteurs et les articulations entre échelles (politique industrielle, transition énergétique, par exemple) auxquels sont liées les destinées locales.Il s'agit de reconnaître que la résilience est plurielle : elle correspond aux moins mauvaises des décisions pour le plus grand nombre d'acteurs dont la voix compte,car il est illusoire de penser que tous les acteurs ont des intérêts convergents et qu'ils comptent également dans la décision, sur le territoire.
4
Bretesché, Sophie, Gilles Montavon e Alexis Martin. "Pour une approche interdisciplinaire du risque environnemental. Le cas de l’uranium". Natures Sciences Sociétés 28, n. 1 (gennaio 2020): 58–65. http://dx.doi.org/10.1051/nss/2020023.
Abstract (sommario):
La transition écologique contemporaine impose de se pencher sur les conséquences sanitaires et environnementales du passé industriel des territoires. Le projet de recherche « Traces, Transfert, Patrimoine », dont il est question ici, s’inscrit précisément dans cette réflexion, en s’intéressant au devenir des anciennes mines d’uranium françaises. La notion de radioactivité naturelle renforcée consécutive à la post-exploitation de l’uranium rend nécessaire une compréhension de la dynamique des territoires et des contaminants, afin de contribuer à une gestion des risques plus intégrée et plus anticipatrice. Le projet s’appuie sur une démarche conduite pour appréhender le risque environnemental dans sa dimension physique et sociale. Issu d’un programme de recherche conduit entre la sociologie et la radiochimie, il vise à caractériser l’empreinte de l’uranium au travers des traces, des processus de transfert et de la qualification du patrimoine.
5
Goutaland, Antoine, Charlotte Demonsant, Armand Hatchuel, Kevin Levilain, Blanche Segrestin e Gérard Vignal. "Gérer le risque de black-out". Revue Française de Gestion 49, n. 309 (marzo 2023): 101–18. http://dx.doi.org/10.3166/rfg309.101-118.
Abstract (sommario):
Alors que la transition énergétique réactive le risque de black-out électrique, l’article montre que les leviers d’action disponibles (coupures, hausse de tarifs…) posent un problème aigu de justice sociale. Mais en analysant ce risque comme un péril commun, il devient possible d’élargir les choix possibles de réductions de consommation, tout en adoptant une nouvelle répartition des coûts, davantage cohérente avec une action de sauvetage au bénéfice de tous. L'article ouvre des perspectives sur des rôles nouveaux pour les gestionnaires de réseau à l’heure de la sobriété.
6
Adaken, Yves. "Logement : l’état face aux effets pervers de son action". Pour l'Éco N° 58, n. 1 (5 febbraio 2024): 18–21. http://dx.doi.org/10.3917/poec.058.0018.
7
Hannah-Moffat, Kelly, Paula Maurutto e Sarah Turnbull. "Negotiated Risk: Actuarial Illusions and Discretion in Probation". Canadian journal of law and society 24, n. 3 (dicembre 2009): 391–409. http://dx.doi.org/10.1017/s0829320100010097.
Abstract (sommario):
RésuméUne « peine juste » est de plus en plus structurée selon le cadre de la probabilité actuarielle. Les technologies du risque actuariel sont souvent considérées comme des procédés ayant, en grande partie, supplanté la prise de décision discrétionnaire de la part des intervenants par des modèles décisionnaires structurés et quantitatifs. Certains savants soutiennent que la transition vers des pénalités basées sur le risque a mené à la «déqualification», à la «scientificité» et à «l'érosion de la discrétion professionnelle», voire même à l'élimination du pouvoir discrétionnaire professionnel de la part des praticiens du droit criminel. Basé sur 71 entrevues semi-structurées et non directives avec des professionnels de la justice criminelle, cet article analyse comment l'introduction des outils du risque façonne la discrétion sans toutefois l'éliminer. Nous soutenons que les outils du risque ne sont pas simplement imposés sur les praticiens de la justice criminelle. Au contraire, les praticiens résistent et utilisent activement les technologies du risque tout en atténuant l'impaete de ces outils sur leur capacité de prendre des décisions discrétionnaires. Nous soutenons que l'adoption des technologies du risque représente une négociation procédurale : les praticiens accueillent les avantages professionnels que ces technologies apportent tout en affirmant l'importance de l'expérience et de la connaissance clinique dans la prise de décision. Nous démontrons comment, premièrement, les praticiens font la distinction entre la standardisation de l'évaluation du risque et leurs propres expériences et connaissances cliniques et comment, deuxièmement, ils exercent de la discrétion dans le but de mitiger les effets discriminatoires associés à l'évaluation du risque. Ainsi, bien que les praticiens sont attirés vers les outils du risque par le fait que leur soi-disant «objectivité» les aident à défendre leurs décisions auprès du public, l'adoption et l'utilisation de ces outils dans le contexte de la prise de décisions professionnelles est plus complexe et contradictoire que laisserait croire la littérature théorique.
8
Macher, Marie-Alice, Robert Novo e Véronique Baudouin. "Transition de soins de l’enfance et de l’adolescence à l’âge adulte en néphrologie". médecine/sciences 38, n. 2 (febbraio 2022): 182–90. http://dx.doi.org/10.1051/medsci/2022003.
Abstract (sommario):
Pour un jeune adulte atteint d’une maladie chronique, le passage de la médecine pédiatrique à la médecine pour adultes est une étape délicate, avec un risque élevé de mauvaise adhésion thérapeutique et de perte de suivi, dont les conséquences peuvent être dramatiques. Une meilleure connaissance de ces risques a conduit, depuis une dizaine d’années, à une forte mobilisation des pédiatres et des équipes médicales pour adultes. La notion de transition de soins enfant-adulte se substitue au simple transfert. La transition est un processus par étapes, durant plusieurs années, qui vise à préparer un adolescent à devenir un jeune adulte autonome et responsable de sa maladie, et qui inclut un accompagnement après le changement d’équipe du suivi médical. Les maladies rénales chroniques ayant débuté dans l’enfance ont une répartition étiologique bien différente de celles qui surviennent à l’âge adulte, et ce sont souvent des maladies rares bénéficiant des filières de soin spécifiques. C’est surtout pour l’insuffisance rénale sévère et, singulièrement, pour les jeunes transplantés que se sont développés des programmes de transition. Nous décrivons dans cet article les principales recommandations et les programmes existant actuellement.
9
Courmont, Barthélémy. "Nouvelle guerre froide, ou grand écart ?" Recherches Internationales 123, n. 1 (2022): 127–42. http://dx.doi.org/10.3406/rint.2022.3339.
Abstract (sommario):
Avec le retrait américain d’Afghanistan et en dépit des impératifs stratégiques et diplomatiques en Ukraine, Washington semble souhaiter réorienter ses priorités stratégiques en accentuant ses pressions sur Pékin. La rivalité sino-américaine s’impose ainsi comme le nouveau cadre de référence des relations internationales, au risque de voir ressurgir une appellation souvent exagérée de guerre froide. Car si la transition de puissance est en marche et pourrait s’accentuer dans les prochaines années, quelle sera la nature du nouvel ordre mondial refermant une parenthèse d’unipolarité de trois décennies ? La bipolarité est-elle de retour, ou faut-il envisager d’autres configurations consacrant un désordre mondial à grande échelle ? Dans ce décor, des perceptions et des positionnements, inscrits dans un grand écart, seront aux bases même des risques pesant sur le système-monde et son équilibre fragile.
10
Flamand, Jean. "Le marché du travail engagé dans une triple transition". Annales des Mines - Réalités industrielles Février 2024, n. 1 (7 giugno 2024): 12–17. http://dx.doi.org/10.3917/rindu1.241.0012.
Abstract (sommario):
Le vieillissement de la population, la numérisation des usages et la réduction de l’empreinte carbone orientent d’ores et déjà l’évolution du marché du travail. Cet article analyse trois familles de métiers étroitement associées à cette triple transition : les métiers du soin, les métiers « cœur du numérique » et les métiers du bâtiment. À l’appui du dernier exercice national de Prospective des métiers et des qualifications, on identifie un risque de pénurie de main-d’œuvre à l’horizon 2030 dans ces différents métiers compte tenu des besoins de recrutement importants qui sont anticipés et du niveau actuel des difficultés de recrutement. Pour y faire face, la formation reste un levier essentiel mais d’autres sont à considérer, que ce soit l’amélioration de la qualité de l’emploi, la promotion de la mixité professionnelle ou encore le développement des transitions professionnelles.
Tesi sul tema "Risque de transition":
1
Kouassi, Tchudjane. "Essays on financial intermediation in transition and emerging countries". Limoges, 2013. http://aurore.unilim.fr/theses/nxfile/default/eff6759f-3bdb-4a8c-bbb3-fb37e6720f0c/blobholder:0/2013LIMO1003.pdf.
Abstract (sommario):
Dans le chapitre 1 de cette thèse, nous analysons empiriquement les répercutions de la mise en place d’un système explicite d’assurance des dépôts sur la prise de risque des banques et sur la discipline de marché dans des pays d’Europe centrale et orientale. Nous montrons que la mise en place d’un système d’assurance des dépôts dans le courant des années 1990 a conduit à une prise de risque élevée des banques. Nous montrons aussi qu’en l’absence d’un système explicite d’assurance des dépôts, la discipline de marché exercée par les déposants à travers les intérêts demandés sur les dépôts est faible et disparait en présence d’un système explicite d’assurance des dépôts. Cependant, en présence d’un système explicite d’assurance des dépôts, les déposants exercent une discipline de marché à travers les dépôts en soustrayant leurs avoirs des banques présentant un profil de risque élevé. On montre aussi que les incitations à la prise de risque générées par l’existence d’un système explicite d’assurance des dépôts varient selon la qualité du cadre institutionnel et juridique dans le pays. Dans le chapitre 2, nous analysons le rôle disciplinant des dépôts interbancaires et nous montrons l’existence d’une discipline de marché exercée par les banques depuis la mise place d’un système explicite d’assurance des dépôts dans les pays d’Europe centrale et orientale. Cependant, plusieurs facteurs comme l’actionnariat des banques ou l’étendue du pouvoir de l’organisme assureur des dépôts affectent l’efficacité de cette discipline de marché. Nos résultats montrent que la discipline exercée par les régulateurs réduit la prise de risque excessive des banques mais affaiblit la discipline de marché. L'étude empirique menée dans le chapitre 3 analyse le type d’activité et de financement des banques étrangères implantées dans les pays émergents et les conséquences en termes de prise de risque. Nous montrons que les activités et le mode de financement des banques étrangères diffèrent de ceux des banques domestiques et que cette différence conduit à des types et des niveaux de risque différentsIn chapter 1 of this dissertation, we empirically analyze the impact of the implementation of explicit deposit insurance on bank risk-taking and market discipline in Central and Eastern European Countries. We show that the introduction of explicit deposit insurance in the 90’s has led to higher risk-taking incentives. Also, in presence of explicit deposit insurance, we find an absence of market discipline exerted by depositors through the interest rate, while considering the market discipline exerted by depositors through the volume of deposits (deposit growth), we find an evidence of market discipline. We also show that the adverse effect of explicit deposit insurance on bank risk-taking varies with the cross-country differences in terms of legal and institutional environment. In chapter 2, we empirically examine the disciplinary role of interbank deposits and we find that this disciplinary role has been effective in Central and Eastern Europe since the mplementation of explicit deposit insurance. However, several factors as banks’ ownership, and deposit insurance features also impact bank risk and the effectiveness of market discipline. In chapter 3, we analyze the business model of banks in transition and emerging countries and its impact on bank risk- taking. We find a difference of activity and funding strategies between foreign and domestic banks. This difference in terms of business model is also reflected into different risk levels for foreign banks and domestic banks. Specifically, we find that foreign banks have a higher insolvency risk, while they exhibit a better loan portfolio quality than domestic banks
2
Ben, Ayed Ghamgui Myriam. "Essais sur le risque de crédit des obligations : Analyse de la migration des notes et des effets de contagion". Phd thesis, Université de Cergy Pontoise, 2013. http://tel.archives-ouvertes.fr/tel-00925547.
Abstract (sommario):
Nous avons essayé dans le cadre de cette thèse de comprendre le processus de notation des entreprises de différentes zones géographiques et secteurs d'activité. Pour ce faire, nous avons décidé de ventiler notre étude en trois phases principales, en l'occurrence une première phase réservée à l'étude du processus de notation en tenant compte de la durée des épisodes, une seconde phase consacrée à l'étude de l'effet de la crise sur ce processus et une troisième phase consacrée à l'étude de la contagion.
3
Nezami, Mehdi. "Stratégies de Transition De Service Dans Les Marchés Industriels". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLH005.
Abstract (sommario):
Face à la baisse des affaires et des pressions de concurrents à bas prix de plus en plus, de nombreux fabricants business-to-business sont en transition vers les services. Pourtant, malgré des investissements importants, les entreprises ne parviennent pas à comprendre les ramifications de la performance de l'ajout de plus d'offres de services. Avec un ensemble de données longitudinales (1998-2013) de 525 fabricants, cette étude teste un cadre global qui démêle les mécanismes financiers à base de médiation qui fournissent simultanément l'effet des services sur la valeur des entreprises sur les différentes étapes de la transition. Bien que la prestation de services augmente de façon monotone croissance des ventes, il a une relation curviligne en forme de U avec la rentabilité, et elle réduit de façon linéaire la volatilité des flux de trésorerie. Les effets sur les performances de déplacement dans les services dépend aussi de facteurs industrie et au niveau de l'entreprise; par exemple, l'effet positif des services sur la croissance des ventes est supérieure dans les industries matures. L'augmentation de la portée de l'entreprise de services en diversifiant les différents marchés défavorablement modère l'effet de la transition vers les services sur la rentabilitéIn the face of declining business and growing pressures from low-cost competitors, many business-to-business manufacturers are transitioning to services. Yet despite substantial investments, firms fail to understand the performance ramifications of adding more service offerings. With a longitudinal data set (1998–2013) of 525 manufacturers, this study tests a comprehensive framework that disentangles the financial-based mediating mechanisms that simultaneously deliver the effect of services on firm value over different stages of the transition. Although providing services monotonously boosts sales growth, it has a U-shaped curvilinear relationship with profitability, and it linearly reduces cash flow volatility. The performance effects of moving into services also depend on industry- and firm-level factors; for example, the positive effect of services on sales growth is greater in mature industries. Increasing the scope of the service business by diversifying across different markets unfavorably moderates the effect of the transition to services on profitability
4
Lampach, Nicolas. "Essays on risk management in the presence of ambiguity". Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAB009/document.
Abstract (sommario):
La thèse vise à établir une gestion du risque technologique optimal pour assurer la réduction des dangers de nouveaux risques émergents, sans entraver le chemin de l'innovation. Les travaux de recherche apportent une contribution aux stratégies ex-ante et ex-post de la gestion des risques et fournissent des données théoriques et empiriques pour aborder la gestion des nouveaux risques émergents. La première partie de la thèse examine, du point de vue juridique et économique, l'efficacité de la règle de la responsabilité civile lorsque le décideur manque d'information sur la probabilité d'un événement. La deuxième partie de la thèse porte une attention particulière à la transition énergétique en France afin de se concentrer sur l'assurabilité de la performance énergétique dans le secteur du logement. Les résultats théoriques et expérimentaux de la première partie de la recherche attestent d'une forte validité empirique selon laquelle le droit de la responsabilité civile ne peut pas fournir des incitations optimales ex-ante en absence d'information sur la probabilité d'accident. Les régimes de la responsabilité illimitée et limitée conduisent à un surinvestissement dans la prévention par rapport aux nouveaux risques émergents. Les résultats empiriques de la deuxième partie de la thèse révèlent que 23,75% des ménages, qui ont participé au programme de rénovation "Je Rénove BBC", ne peuvent pas atteindre l'objectif d'énergie prévu, mais l'amplitude de l'écart de performance énergétique est relativement faible. Les résultats des travaux de recherche impliquent plusieurs recommandations politiques pour gérer les nouvelles technologies émergentes dans le futurThe thesis aims to establish an optimal technological risk management to ensure hazard reduction of new emerging risks without impeding the innovation path. The research work contributes to ex-ante and ex-post risk management strategies and provides theoretical and empirical evidence to address the management of new emerging risks. The first part of the thesis examines, from the perspective of Law and Economics, the effectiveness of the tort liability rule for the situation where the decision maker is lacking information about the probability of an event to occur. The second part of the thesis pays particular attention to the environmental energy transition in France and focus on the insurability of the energy performance in the housing sector. The theoretical and experimental findings from the first part of the research convey strong validity that tort law cannot provide ex-ante optimal incentives when there is lacking information about the probability of accident. The regime of unlimited and limited liability leads to overinvestment in prevention in regard to new emerging risks. The empirical results of the second part of the thesis reveal that 23.75% of households participated in the weatherization program "Je Rénove BBC" do not achieve the required energy target but the severity of the energy performance gap is relatively low. The findings of the research work imply several policy recommendations to manage new emerging technologies in the future
5
Truong, An Quoc. "La transition au risque des jeunes diplômés de l'enseignement supérieur : le cas de la ville de Hanoi". Toulouse 2, 2007. http://www.theses.fr/2007TOU20112.
Abstract (sommario):
Depuis près de 20 ans, le Viêt-nam s'est installé dans une transition caractérisée par l'ouverture sur le marché, par le retrait progressif de l'État pourvoyeur d'emploi et de garanties sociales, par la transformation de la structure sociale. Pour évaluer cette transition, nous avons demandé à 600 jeunes diplômés (droit, gestion, ingénieurs, etc. . . ) de décrire leurs stratégies d'insertion professionnelle, d'évaluer l'emploi trouvé et de faire le bilan à l'égard de leurs attentes. Il ressort (1) un attachement à l'emploi public stable, même si le travail ne correspond pas entièrement à leur niveau de formation ; (2) un attrait relativement faible et risqué pour les emplois du secteur privé (entreprises privées ou à capitaux étrangers) ; (3) un attachement contrarié à la formation qui leur donne un diplôme, un titre, une spécialité, un rang, bref, une reconnaissance ; (4) un profond respect de la culture, fondé sur le respect des anciens, la solidarité entre membres issus d'un même village, l'acceptation de l'autorité du père et de la division sexuelle du travail. Cette position n'est pas le résultat d'une soumission au passé, mais une décision résultant d'un compromis entre une situation insatisfaisante, mais stable et une situation plus avantageuse, mais risquée : ce compromis est fondé sur un "pacte social" pour une vie "tranquille et harmonieuse" qui satisfait ses proches, et sur un pari qu'il vaut mieux attendre avant de s'engager dans des voies incertaines. La "transition au risque des jeunes diplômés" est un processus d'apprentissage individuel et collectif de participation à de nouveaux modes de décision et d'élaboration de changements que les jeunes diplômés tentent de s'approprier pour mieux le maîtriser.
6
Le, Guenedal Théo. "Financial Modeling of Climate-related Risks". Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAG009.
Abstract (sommario):
Ce projet de recherche est consacré à l'estimation des risques financiers liés au changement climatique. Au-delà des applications et des résultats quantitatifs, les chapitres de cette thèse ont pour principal objectif d'apporter des méthodologies générales utilisables par les praticiens. Le premier chapitre propose une méthode d'évaluation bottom-up du risque de transition adjointe aux modèles de risque classiques. Cette approche du risque opérationnel par les coûts engendrés par une taxe potentielle limite l'impact aux secteurs directement polluants, ce qui amène au deuxième chapitre, introduisant les tables d'entrée-sorties pour appréhender les effets indirects du risque de transition dans la chaîne d'approvisionnement. Ces approches offrent une structure statique permettant d'évaluer le risque dans un scénario donné, mais pas de déterminer le prix des obligations en considérant des scénarios hétérogènes et leur probabilité de réalisation. Pour ce faire, le troisième chapitre propose un modèle de pricing intégrant une approche bayésienne dans la mise à jours des probabilités de scénarios sur la base des sauts observés dans les mécanismes de tarification du carbone. Enfin, le dernier chapitre propose une méthodologie Monte-Carlo de simulation de dommages annuels causées par des cyclones tropicaux. La conversion des données climatiques brutes en base de données synthétique de sinistres est réalisée en couplant des relations statistiques et thermodynamiques. L'exposition des actifs physiques, les dynamiques des facteurs socio-économiques, les densités de populations locales et les vulnérabilités spécifiques aux différentes régions du monde sont empruntés à différents segments de la littérature. Ils sont combinés afin d'obtenir un modèle complet du triptyque classique nécessaire à l'étude des risques physiques : 'intensité' x 'exposition' x 'vulnérabilité' généralisable et homogène sur l'ensemble des pays. Le signal résultant peut ensuite être inclus simplement dans des modèles de risque de crédit assimilant les dommages annualisés à de la dette additionnelleThis research project aims at estimating financial risks related to climate change. Beyond the applications and quantitative findings, the main objective of the chapters of this thesis is to provide a structural and methodological framework that is generalizable, in order to facilitate their integration by practitioners. The first chapter proposes a bottom-up measure of transition risk, which can be incorporated with classical risk models (Merton or credit risk model). This cost-based approach is limited to the directly polluting sectors, which leads to the second chapter, which allows for the diffusion of transition risk through the value chain. These approaches offer a static structure that allows for a fixed scenario stress-test but not for pricing the bonds by considering heterogeneous scenarios and the probability of realization. To this end, chapter three proposes a pricing model that integrates a Bayesian approach in updating scenario probabilities based on observed jumps in carbon pricing mechanisms. Finally, the last chapter proposes a Monte-Carlo methodology for simulating annual damages caused by tropical cyclones. The conversion of raw climatic data into a synthetic database of losses is achieved by coupling statistical and thermodynamic relationships. The exposure of physical assets, the dynamics of socio-economic factors, local population densities and specific vulnerabilities in different regions of the world are borrowed from different segments of the literature, and combined to obtain a complete model of the classical triptych necessary for the study of physical hazards: hazard intensity x exposure x vulnerability generalizable and homogeneous across countries. The resulting signal can then be simply included in credit risk models equating annualized damages with additional debt
7
Rufat, Samuel. "Transition post socialiste et vulnerabilité urbaine à Bucarest". École normale supérieure-Lettres et sciences humaines (Lyon ; 2000-2009), 2008. https://hal.archives-ouvertes.fr/tel-01999981.
Abstract (sommario):
Les périodes de transition correspondent à des pics de vulnérabilité pour les auteurs de The Environment as Hazard. Cette étude cherche à vérifier ce constat dans le cas de la sortie du socialisme à partir de l’exemple de Bucarest. Elle part de l’hypothèse d’une articulation entre, d’une part, les transformations de la période de « transition », et d’autre part, la métropole comme « creuset » du risque. Elle cherche ensuite à savoir si la vulnérabilité s’est renforcée à Bucarest au cours des quinze dernières années. Les différentes dimensions de la vulnérabilité sont interrogées au cours de cinq approches successives : historique, épistémologique, territoriale, par les pratiques et les jeux d’acteurs et enfin par les représentations. Ce cheminement dévoile deux types de résultats. D’abord, la période de « transition » s’est traduite par une convergence du renforcement des différentes traductions de la vulnérabilité. Elle débouche sur des situations parfois très préoccupantes. Ensuite, les outils mis en place conduisent à deux propositions qui dépassent largement la cas de Bucarest : une nouvelle approche de l’estimation de la vulnérabilité et un nouveau cadre interprétatif des représentations du risqueTransition periods correspond to a reinforcement of vulnerability for the authors of "The Environment as Hazard". This study tries to verify this assertion in the case of the end of socialism based upon the example of Bucharest. It starts from the assumption that there is an articulation between, on the one hand, the transformations of the “transition” period and, on the other hand, the metropolis as a “crucible” of hazard. Then, it tries to determine whether there was an increase in vulnerability in Bucharest during the last fifteen years. The various dimensions of vulnerability are analyzed according to five successive approaches: historical, epistemological, territorial, through the practices and risk management institutions and lastly risk perception. Through this journey, the study finds two types of results. First, the “transition” period resulted in a convergence of the reinforcement of the various dimensions of vulnerability, which leads in some cases to highly alarming situations. Then, the methods designed lead to two applications that go largely beyond the case of Bucharest: a new approach to vulnerability assessment and a new risk perception framework
8
Chehaita, Julie. "Apport de l’approche écosystémique dans la gestion des risques de la transition énergétique : cas de l’éolien". Electronic Thesis or Diss., Troyes, 2021. http://www.theses.fr/2021TROY0039.
Abstract (sommario):
Les entreprises du secteur de l’énergie sont confrontées à la nécessité de transformer leur modèle économique pour intégrer les préoccupations écologiques et assurer une transition énergétique (TE). Selon la littérature sur les transitions, la prise en compte des risques de ce processus nécessite des approches novatrices orientées vers le long terme, ainsi qu'une conception adaptative des politiques. Dans ce cadre, l'approche de l'écosystème d’affaire joue un rôle important dans la découverte de nouvelles solutions liées à la TE. L'objectif principal de cette thèse est d'examiner l’apport de l'application de l'approche de l'écosystème dans la réduction des risques sous-jacents de ce processus. Par le biais d'entretiens approfondis et une revue de littérature exhaustive, d'un engagement étendu des parties prenantes et d'une interrogation sur les caractéristiques des acteurs de l'énergie dans une série de contextes, le potentiel du rôle de l'écosystème émergent des énergies renouvelables (EEnR) dans la réduction des risques de la TE est étudié. La recherche menée donne un aperçu de la nature holistique de la relation entre les acteurs de l'énergie et explore les obstacles communs rencontrés tels que l'acceptabilité sociale, les risques du marché et la gestion des parties prenantes. Les résultats suggèrent que les entreprises sont conscientes du potentiel d'un EEnR émergent. De nombreuses caractéristiques de ce EEnR ont été trouvées dans les stratégies de partenariat actuelles des acteurs interrogés. Plus largement, une cartographie de cet écosystème émergent a été présentéeEnergy companies are faced with the need to transform their business model to integrate environmental concerns and ensure an energy transition. According to the transitions literature, addressing the risks of this process requires innovative, long-term oriented approaches, as well as thoughtful and adaptive policy design. In this framework, the business ecosystem approach plays an important role in the discovery of new solutions during the energy transition. The main objective of this thesis is to examine the contribution of applying the ecosystem approach in reducing the underlying risks of this process. Through exhaustive in-depth interviews and literature reviews, extensive stakeholder engagement, and interrogation of the characteristics of energy actors in a range of contexts, the potential for the role of the emerging renewable energy ecosystem in reducing the risks of the energy transition is explored. The research conducted provides insight into the holistic nature of the relationship between energy actors and explores common barriers encountered such as social acceptability, market risks and stakeholder management. The results suggest that companies are aware of the potential of an emerging renewable energy ecosystem and that most companies view the ecosystem approach positively. Many characteristics of this potential ecosystem, which is in its nascent stage, were found in the current partnership strategies of the interviewed stakeholders. More broadly, a mapping of the emerging renewable energy ecosystem was presented
9
Chaumette, Boris. "Identification de facteurs biologiques de la transition psychotique". Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB046/document.
Abstract (sommario):
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 risquePsychosis 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
10
Aounallah-Skhiri, Hajer. "Mode de vie et santé de l'adolescent en Tunisie dans un contexte de transition épidémiologique". Paris 6, 2010. http://www.theses.fr/2010PA066108.
Abstract (sommario):
On a évalué l’état nutritionnel et de santé et les facteurs associés chez des scolaires d’une région proche de Tunis, et sur un échantillon représentatif de portée nationale tunisienne, d’adolescents scolarisés ou non (15-19 ans), La prévalence nationale de maigreur, surcharge pondérale et obésité était respectivement de 8,1%, 17,4% et 4,1% chez les garçons, et de 1,3%, 20,7% et 4,4% chez les filles. La maigreur est essentiellement un problème du monde rural ; la surcharge pondérale est surtout prévalente en ville pour les garçons. Par contre, la surcharge pondérale se retrouve à niveau égal en rural comme en ville pour les filles. De fortes différences régionales subsistent pour la surcharge pondérale, largement associées à des facteurs socio-économiques et de modes de vie chez les garçons. La plus grande sédentarité, et des apports énergétiques élevés sont en cause chez les filles, associés à des facteurs probablement de nature culturelle et éducative. L’analyse multifactorielle de la structure alimentaire a fait ressortir un axe principal de changement alimentaire allant du plus traditionnel au plus ‘moderne’ (lié à un mode de vie urbain et à un meilleur niveau économique) et clairement associé à la surcharge pondérale, surtout chez les garçons, il est également associé à une moindre prévalence de préhypertension chez les filles, en relation avec un plus grand apport en produits laitiers. Ces adolescents tunisiens présentent nettement moins de problèmes de tabac, alcool et drogue que leurs homologues de pays industrialisés pour le moment. Dans ce contexte de transition épidémiologique et nutritionnelle, des programmes d’éducation plus spécifiques sont nécessaires
Libri sul tema "Risque de transition":
1
Archambault, Guy. Le suivi personnalisé des élèves à risque dans leur transition du secondaire au collégial: Rapport de recherche. Ville de Saint-Georges, Québec: Cégep Beauce-Appalaches, 1996.
2
Fontenoy, Maud. Les raisons d'y croire: Stop au principe de précaution, oui à l'innovation! Paris: Plon, 2015.
3
San Francisco (Calif.). Office of the Controller. City Services Auditor Division. Board of Supervisors: Reviews of department head transitions at seven City departments. San Francisco: Office of the Controller, 2006.
4
Moran, Arik. Kingship and Polity on the Himalayan Borderland. NL Amsterdam: Amsterdam University Press, 2019. http://dx.doi.org/10.5117/9789462985605.
Abstract (sommario):
Kingship and Polity on the Himalayan Borderland explores the modern transformation of state and society in the Indian Himalaya. Centred on three Rajput led-kingdoms during the transition to British rule (c. 1790-1840) and their interconnected histories, it demonstrates how border making practices engendered a modern reading of ‘tradition’ that informs communal identities to this day. Countering the common depiction of these states as all-male, caste-exclusive entities, it reveals the strong familial base of Rajput polity, wherein women — and regent queens in particular — played a key role alongside numerous non-Rajput groups. Drawing on rich archival records, rarely examined local histories, and nearly two decades of ethnographic research, it offers an alternative to the popular and scholarly discourses that developed with the rise of colonial knowledge. The analysis exposes the cardinal contribution of borderland spaces to the fabrication of group identities. This book will interest historians and anthropologists of South Asia and of the Himalaya, as well as scholars working on postcolonialism, gender, and historiography.
5
Chan, Catherine. The Macanese Diaspora in British Hong Kong. NL Amsterdam: Amsterdam University Press, 2021. http://dx.doi.org/10.5117/9789463729253.
Abstract (sommario):
Diaspora transformed the urban terrain of colonial societies, creating polyglot worlds out of neighborhoods, workplaces, recreational clubs and public spheres. It was within these spaces that communities reimagined and reshaped their public identities vis-à-vis emerging government policies and perceptions from other communities. Through a century of Macanese activities in British Hong Kong, this book explores how mixed-race diasporic communities survived within unequal, racialized and biased systems beyond the colonizer-colonized dichotomy. Originating from Portuguese Macau yet living outside the control of the empire, the Macanese freely associated with more than one identity and pledged allegiance to multiple communal, political and civic affiliations. They drew on colorful imaginations of the Portuguese and British empires in responding to a spectrum of changes encompassing Macau’s woes, Hong Kong’s injustice, Portugal’s political transitions, global developments in print culture and the rise of new nationalisms during the inter-war period.
6
Sovacool, Benjamin K. The History and Politics of Energy Transitions. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198802242.003.0002.
Abstract (sommario):
According to some definitions, an energy transition refers to the time that elapses between the introduction of a new primary energy source, or prime mover, and its rise to claiming a substantial share of the overall energy market. According to one academic view, energy transitions take an incredibly long time to occur. Another view argues the opposite. It suggests that there have been many transitions at varying scales that have occurred quite quickly—that is, between a few years and a decade or so, or within a single generation. This chapter holds that both sides are partly right, and partly wrong. After presenting evidence in support of either thesis, it elucidates four lessons for energy analysts and policymakers.
7
Murray, Michelle. The Struggle for Recognition in International Relations. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190878900.001.0001.
Abstract (sommario):
How can established powers manage the peaceful rise of new great powers? With The Struggle for Recognition in International Relations, the author offers a new answer to this perennial question in international relations, arguing that power transitions are principally social phenomena whereby rising powers struggle to obtain recognition of their identity as a great power. At the center of great power identity formation is the acquisition of particular symbolic capabilities—such as battlesheips, aircraft carriers, or nuclear weapons—that are representative of great power status and that allow rising powers to experience their uncertain social status as a brute fact. When a rising power is recognized, this power acquisition is considered legitimate and its status in the international order secured, leading to a peaceful power transition. If a rising power is misrecognized, its assertive foreign policy is perceived to be for revisionist purposes, which must be contained by the established powers. Revisionism—rather than the product of a material power structure that encourages aggression or domestic political struggles—is a social construct that emerges through a rising power’s social interactions with the established powers as it attempts to gain recognition of its identity. The question of peaceful power transition has taken on increased salience in recent years with the emergence of China as an economic and military rival of the United States. Highlighting the social dynamics of power transitions, this book offers a powerful new framework through which to understand the rise of China and how the United States can facilitate its peaceful rise.
8
Newmeyer, Frederick J. American Linguistics in Transition. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192843760.001.0001.
Abstract (sommario):
Abstract American Linguistics in Transition is devoted to a major chapter in the history of linguistics in the United States. From the 1930s to the 1960s a form of structural linguistics was dominant in that country. By the end of the 1960s Chomsky’s generative grammar had to a significant extent eclipsed its structuralist antecedents. The book discusses the rise of structuralism in the 1930s, explaining its successes and its limitations. One chapter is devoted to the interplay between American structuralism and European structuralism. Another deals with the early debate between structuralism and generative grammar, pinpointing what the two approaches shared and how they differed. Other chapters focus on the what generativists did to make their new ideas known, on how their theory was accepted (or not) in Europe, and on the resistance to the new theory by leading structuralists, which continued into the 1980s. The final chapter demonstrates that generative grammarians were not organizationally dominant in the field in the US in the 1970s and 1980s, despite what has often been claimed.
9
Larson, Peter L. Rethinking the Great Transition. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780192849878.001.0001.
Abstract (sommario):
This case study of two rural parishes in County Durham, England uses a wide range of medieval and early modern sources to offer an alternate view on the economic development involved in the transition from medieval to modern, partly explaining England’s rise to global economic dominance in the seventeenth century. These are an example of agrarian expansion, as coal mining did not come to these parishes until the nineteenth century. Low population, favourable seigneurial administration, and a commercialized society saw the emergence of large farms on the bishopric of Durham soon after the Black Death; these secure copyhold and leasehold tenures were among the earliest known in England. Individualism developed within a strong parish and village community that encouraged growth while enforcing conformity. Along with low rents, this allowed for a swift expansion of agricultural production in the sixteenth century as population rose and then as the coal trade expanded rapidly. The prosperity of these families is reflected in their lands, livestock, and consumer goods. Yet not all shared in this prosperity, as the poor and landless increased in number simply by population growth. Through reformation and rebellion, these and other parishes prospered without experiencing severe disruption or destruction. In north-eastern England, agrarian development was an evolution and not a revolution. England’s economic development was a single narrative, but a collection of regional experiences at different times and at different speeds.
10
Iliopoulos, John. A Brief History of Cosmology. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198805175.003.0002.
Abstract (sommario):
We present the evolution of our ideas concerning the history of the Cosmos. They are based on Einstein’s theory of General Relativity in which E.P. Hubble and G. Lemaître brought two fundamental new concepts: the expansion of the Universe and the model of the Big Bang. They form the basic elements of the modern theory of Cosmology. We present very briefly the observational evidence which corroborates this picture based on a vast amount of data, among which the most recent ones come from the Planck mission with a detailed measurement of the cosmic microwave background (CMB) radiation. We show that during its evolution the Universe went through several phase transitions giving rise to the formation of particles, atoms, nuclei, etc. A particular phase transition, which occurred very early in the cosmic history, around 10–12 seconds after the Big Bang, is the Brout–Englert–Higgs (BEH) transition during which a fraction of the energy was transformed into mass, thus making it possible for most elementary particles to become massive.
Capitoli di libri sul tema "Risque de transition":
1
Ellman, Michael. "The Rise and Fall of Socialist Planning". In Transition and Beyond, 17–34. London: Palgrave Macmillan UK, 2007. http://dx.doi.org/10.1057/9780230590328_2.
2
Kugler, Jacek, e Ronald L. Tammen. "Implications of Asia’s Rise to Global Status". In Systemic Transitions, 161–86. New York: Palgrave Macmillan US, 2009. http://dx.doi.org/10.1057/9780230618381_8.
3
Silla, Cesare. "Souls in transition". In The Rise of Consumer Capitalism in America, 1880–1930, 48–59. 1 Edition. | New York : Routledge, 2018. | Series: Contemporary liminality: Routledge, 2018. http://dx.doi.org/10.4324/9781315399669-3.
4
Lawrence, Andrew. "REIPPPP: Renewables’ Rise, or REIPPPP RIP?" In South Africa’s Energy Transition, 99–114. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-18903-7_5.
5
LeClair, Mark S. "The New Philanthropy: The Rise of Nontraditional Giving in the United States". In Philanthropy in Transition, 89–130. New York: Palgrave Macmillan US, 2014. http://dx.doi.org/10.1057/9781137394484_4.
6
Herrera, Selena, e John Wilkinson. "Sugar-Cane Bioelectricity in Brazil: Reinforcing the Meta-Discourses of Bioeconomy and Energy Transition". In Bioeconomy and Global Inequalities, 151–71. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68944-5_8.
Abstract (sommario):
AbstractThis article analyses the contribution of sugar-cane bioelectricity to the distribution and diversification of power generation in Brazil. A transition is currently underway towards an energy mix characterized by natural gas and new renewable energy sources, mainly wind and solar. Energy security and industrial development priorities have created political and economic challenges for bioelectricity governance. However, meta-discourses of energy transition and bioeconomy are giving rise to selection pressures that are promoting institutional changes towards an expansion of the ethanol market. By using the multi-level perspective of transitions, this paper concludes that, given the technology in use for bioelectricity production, the critical financial state of the sugar-cane industry and the current priorities of the electricity marketing model, sugar-cane bioelectricity, which has a key role to play in the energy matrix, remains uncompetitive and dependent on specific public policies to support its expansion.
7
Grigoriadis, Ioannis N. "Democratic Transition in Turkey". In Democratic Transition and the Rise of Populist Majoritarianism, 27–40. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57556-8_3.
8
Nolan, Peter. "The Transition Orthodoxy and its Problems". In China's Rise, Russia's Fall, 54–109. London: Palgrave Macmillan UK, 1995. http://dx.doi.org/10.1057/9780230378360_4.
9
Temiz, Kadir. "China's rise and power transition debates". In Chinese Foreign Policy Toward the Middle East, 25–50. London: Routledge, 2021. http://dx.doi.org/10.4324/9781003180333-2.
10
Riaz, Ali, e Md Sohel Rana. "The Sequence of Backsliding and the Rise of the Autocrats". In Global Political Transitions, 37–47. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-7580-8_4.
Atti di convegni sul tema "Risque de transition":
1
Kelly, P. B., Shijian Li, Richard Chadwick, Gary Strahan e Bruce Hudson. "Applications of ultraviolet resonance Raman spectroscopy in molecular spectroscopy". In International Laser Science Conference. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/ils.1986.thl33.
Abstract (sommario):
Raman spectra obtained in conditions of resonance with electronic excitations are often dominated by transitions that are very weak in the normal off-resonance spectrum. These enhanced bands can be used to determine the symmetry of the resonant excited electronic state if this state gives rise to a forbidden transition. In this case the most strongly enhanced bands correspond to binary combinations and overtones of the vibronic promoting modes active in the transition. The use of this method to determine the symmetry of excited states of butadiene and benzene is presented.1,2 The most strongly enhanced vibrations associated with resonance with allowed electronic transitions are those that have large projections along the geometry change associated with excitation. Recent results for a series of substituted ethylene species are presented. Resonance with excitations that have both allowed and induced vibronic character gives rise to characteristic fundamental transitions of the promoting modes. The case of substituted benzene molecules is discussed.
2
Morrice, L., N. Hamdan e T. A. Powell. "Vessel Fuel Consumption - A Comparative Case Study for Offshore Product Protection Methods". In Innovative Geotechnologies for Energy Transition. Society for Underwater Technology, 2023. http://dx.doi.org/10.3723/odsi1177.
Abstract (sommario):
The requirements for offshore trenching activities and mechanical protection have recently increased significantly to meet market demands. Inter-array and export cable trenching and backfill activities are expected to rise sharply in the coming few years, due to the increase in construction of renewable energy developments to fulfil ambitious government set quotas. In the meantime, pipeline trenching, mechanical backfilling and rock installation are still taking place within the oil & gas sector during the energy transition. Vessel fuel consumptions associated with offshore wind farm inter-array & export cables and for oil & gas pipelines and umbilicals are examined in this paper. Various aspects that affect fuel consumption such as trenching methods (jetting, ploughing, mechanical backfilling, mechanical cutting and hybrid trenching), rock installation and concrete mattresses installation are discussed and presented, along with areas that can reduce harmful vessel emissions. Case studies are investigated by considering a 10 km pipeline route requiring soil cover, a 10 km umbilical route requiring a lowering specification and a set of typical 2 km inter-array cables complete with a 30 km export cable requiring a lowering specification below a future seabed level.
3
Abraham, John P., Eph M. Sparrow e Ryan D. Lovik. "Pulsating Fluid Flows Undergoing Transitions Between Laminar, Transitional, and Turbulent Regimes". In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206683.
Abstract (sommario):
The two major fluid flow systems of the human body, blood circulation and respiration, experience timewise pulsations. The variations of the fluid velocity during a pulsation/respiration cycle give rise to transitions in the flow regime during the course of a cycle. At the lowest fluid velocity encountered in the cycle, it is likely that the flow is laminar. As the velocity increases, the laminar regime may transist into a regime called transitional intermittent. Further increases in velocity may lead either to the fully developed intermittent regime or to the fully developed turbulent regime. Once the velocity attains a maximum and begins to decrease, the process of laminarization may be initiated wherein a succession of flow regimes may occur in opposite order to that described in the foregoing. The current capabilities of numerical simulation are limited to a single, user-specified flow regime, either laminar or turbulent. Consequently, the successive spontaneous flow regime transitions encountered in human-body fluid flows have been heretofore beyond the reach of biomedical investigators. Indeed, a thoroughgoing literature review failed to unearth any biomedical-oriented publications in which flow regime transitions have been taken into account. The present investigation is aimed at applying, for the first time, a flow transition model previously developed for steady flows to unsteady flows. The flows to be considered are timewise periodic, with amplitudes, periods, and mean values appropriate to blood flows in large arteries. Special consideration will be given to the magnitudes of the wall shear stresses that are created by such flows, since the accumulation of plaque depends decisively on the shear. The work will also take account of variations in the flow geometry.
4
"Impact of parameters on gas ratios obtained from air gasification of date palm waste". In Sustainable Processes and Clean Energy Transition. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902516-26.
Abstract (sommario):
Abstract. Utilizing date palm waste as an energy source is a potential low-carbon energy source, especially in areas such as the Middle East. This study investigates date palm waste air gasification performed in a downdraft gasifier. The study aims to analyze the impact of various parameter ranges such as temperature of 600-900 ᵒC, air flow rate of 1.0 to 4.0 l/min, and particle size of <2-6> mm on the gas ratios of producer gas. H2/CO ratio is an important parameter which is an increase from 0.53 to 0.71 with a rise in temperature from 600 to 900 ᵒC. A similar profiling of other gas ratios was noticed with the temperature increase. The H2/CO ratio and H2/CO2 are found maximum at the air flow rate of 2.5 l/min and 3.0 l/min.H2/CH4 showed a very steady trend with an increase of air flow rate up to 2.5 l/min, but a sharp hike was noticed by increasing the air flow rate of 2.5 to 4.0 l/min. Larger particle size shows a lower value of H2/CO, H2/CH4, and H2/CO2 due to the lower heat and mass transfer diffusion compared to smaller particle size.
5
"Development of inherent safety assessment index for e-waste recycling process: flammability parameter". In Sustainable Processes and Clean Energy Transition. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902516-42.
Abstract (sommario):
Abstract. Nowadays, the usage of electronic devices such as computers and mobile phones are crucial in the daily life especially with the growing internet usage globally. The worldwide e-waste production is anticipated to be around 20 to 25 million tonnes per year and is expected to rise through the decade. Increasing amount of e-waste will become a major concern due to its harmful impact to the environment as well as human health. Investigations on the impact of e-waste recycling process in terms of flammability parameter is currently lacking. The objective of this work is to develop an inherent safety assessment index focusing on the flammability parameters assessment of e-waste recycling process. The inherent safety assessment index developed focused on the flammability value of every chemical used in e-waste recycling process particularly the hydrometallurgy and pyrometallurgy processes. Logistic function was used in developing the scores for flammability evaluation of e-waste processes. In this scoring index, higher flammability score indicates higher hazard. A simple case study was conducted to compare the flammability level of two e-waste recycling process, namely Process A and Process B. Process B has higher Total Flammability Score than Process A indicating it as more hazardous due to the existence of hydrochloric acid and cyanide in the process than Process A with only hydrochloric acid as its flammable chemical in terms of flammability level. This indicates that the inherent safety assessment index produced can be used to conduct preliminary evaluation on the flammability level of chemicals involved in an e-waste recycling process particularly the hydrometallurgy and pyrometallurgy processes. However, to achieve a more comprehensive inherent safety assessment, this index needs to be equipped with several others inherent safety assessment parameters for example explosiveness and toxicity.
6
Davies, M. R. D., F. K. O’Donnell e A. J. Niven. "Turbine Blade Entropy Generation Rate: Part I — The Boundary Layer Defined". In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0265.
Abstract (sommario):
The profile loss of a gas turbine blade is normally associated with the entropy increase due to the boundary layer phenomena of viscous shear, Reynolds stress generation and heat transfer. To establish the relative contributions of laminar, transitional and turbulent adiabatic boundary layer flow, to the overall entropy generation (as described in part two of this paper), detailed hot film and hot wire measurements have been made over the suction surface of a turbine blade mounted within a subsonic linear cascade. At a Reynolds number of 185 × 103, a natural transition region was found between 53 and 70% suction surface length, followed by a slowly relaxing turbulent boundary layer. The wall shear stress distribution indicated a peak in the leading edge region, dropping to a minimum value prior to transition, with a sharp rise over the transitional length before decreasing within the turbulent portion. The measurements were compared with predictions obtained from a commercial computational fluid dynamics code, which utilised the renormalisation group theory (RNG) turbulence model.
7
Thomas, Philippe, Yves Dutuit e Jean-Pierre Signoret. "Prise en compte des transitions dynamiques au sein des réseaux de Petri stochastiques". In Congrès Lambda Mu 20 de Maîtrise des Risques et de Sûreté de Fonctionnement, 11-13 Octobre 2016, Saint Malo, France. IMdR, 2016. http://dx.doi.org/10.4267/2042/61817.
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Schultz, Michael P., e Ralph J. Volino. "Effects of Concave Curvature on Boundary Layer Transition Under High Free-Stream Turbulence Conditions". In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0191.
Abstract (sommario):
An experimental investigation has been carried out on a transitional boundary layer subject to high (initially 9%) free-stream turbulence, strong acceleration K=ν/Uw2dUw/dxas high as9×10-6, and strong concave curvature (boundary layer thickness between 2% and 5% of the wall radius of curvature). Mean and fluctuating velocity as well as turbulent shear stress are documented and compared to results from equivalent cases on a flat wall and a wall with milder concave curvature. The data show that curvature does have a significant effect, moving the transition location upstream, increasing turbulent transport, and causing skin friction to rise by as much as 40%. Conditional sampling results are presented which show that the curvature effect is present in both the turbulent and non-turbulent zones of the transitional flow.
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Eldridge, Bruce. "THE PLACE OF THE GÜLEN MOVEMENT IN THE INTELLECTUAL HISTORY OF ISLAM, PARTICULARLY IN RELATION TO ISLAM’S CONFRONTATION WITH POSTMODERNISM". In Muslim World in Transition: Contributions of the Gülen Movement. Leeds Metropolitan University Press, 2007. http://dx.doi.org/10.55207/wnpd2463.
Abstract (sommario):
The world is changing at an unprecedented rate. Established religions are struggling to come to terms with societies that are increasingly secular and sceptical about the certainties of the past. They are struggling to come to terms with the new modes and speeds of communication and the moods and ideas that can now be spread so fast. How Islam will eventually respond to the post-modern world is still to be determined. Some want nothing to do with that world, others understand the need to take the opportunities and rise to the challenges. Fethullah Gülen is one of the latter. This paper places the Gülen movement and Fethullah Gülen himself in particular, within the context of Islam’s confrontation with modernity and post-modernity. It demonstrates Gülen’s awareness of Islam’s intellectual legacy and the extent to which he utilises the methodolo- gies of earlier scholars. Gülen interprets Islam’s foundational texts in a way that picks out their relevance to today’s world. He is unafraid to engage with other philosophies and faith communities. The schools established by his followers have developed curricula designed to produce the next generation of leaders. Gülen envisions a world where people are deeply grounded in a moral and ethical tradition, where humility and service are highly valued and where reason, science and technology are fully utilised for the benefit of all. This paper shows that when confronted by the uncertainties and relativities of postmodernism, Gülen has located a middle way able to sustain itself in a globalised, postmodern world while re- maining true to its Islamic heritage.
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Cameretti, Maria Cristina, e Raffaele Tuccillo. "A CFD Based Off-Design Study of Micro-Gas Turbines Combustors". In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68924.
Abstract (sommario):
The authors examine different off-design conditions induced in a lean-premixed combustor by some typical transient processes of a micro-gas turbine. The latter is subject to frequent changes in both thermal and mechanical load and the unsteady transition from one regime to a different one produces significant variation in the boundary conditions and in the fuel/air equivalence ratio as well. After a proper definition of the computational domains, a CFD based simulation allows examination of typical situations within full-to-part or part-to-full load transitions. Some results discussed in the paper suggest substantial modifications of the fuel supply laws for a more effective control of both temperature rise and pollutant production.
Rapporti di organizzazioni sul tema "Risque de transition":
1
Fischer W. e U. Iriso. Transition Pressure Rise in RHIC Run-4. Office of Scientific and Technical Information (OSTI), dicembre 2004. http://dx.doi.org/10.2172/1061776.
2
Zhang S. Y. Observations Related to Beam Transition Pressure Rise. Office of Scientific and Technical Information (OSTI), aprile 2005. http://dx.doi.org/10.2172/1061790.
3
Fattouh, Bassam, Rahmatallah Poudineh e Rob West. The rise of renewables and energy transition. Oxford Institute for Energy Studies, maggio 2018. http://dx.doi.org/10.26889/9781784671099.
4
Kim, Kyeonghee, e Xiao Lin. Climate risks in the commercial mortgage portfolios of life insurers: A focus on sea level rise and flood risks. Center for Insurance Policy and Research, luglio 2023. http://dx.doi.org/10.52227/26565.2023.
Abstract (sommario):
In this paper, we explore the climate risk exposure of U.S. life insurers’ commercial mortgage loan portfolios, focusing on sea level rise (SLR) and flood risks. Commercial mortgages are an important asset class of life insurers: Approximately 15% of the life insurance industry asset is held in commercial mortgages. Life insurers are also important institutional investors in the commercial real estate (CRE) market. They hold approximately 14% of the outstanding CRE mortgage loans and are the third-largest institutional lenders in the U.S. commercial mortgage market. Life insurers are exposed to both physical and transitional risks of climate change through their commercial mortgage investments: Physical damages to commercial properties may increase due to flooding or SLR, and devaluation of certain commercial properties as the economy transitions can also lead to financial losses for life insurers.
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Ahmed, S. Amer, Thomas Hertel e Ruben Lubowski. Calibration of a Land Cover Supply Function Using Transition Probabilities. GTAP Research Memoranda, febbraio 2009. http://dx.doi.org/10.21642/gtap.rm14.
Abstract (sommario):
In the GTAP-AEZ framework the supply of land across different uses is determined through a Constant Elasticity of Transformation (CET) supply function, where land cover is allocated across forestry, grazing and crops, followed by the allocation of harvested area across cropping activities. This research memorandum describes the empirically based calibration strategy used to determine the CET value for the land cover allocation nest dealing with the broader three commercial uses, and examines how land use responsiveness and the parameter value evolve over time. The calibration is accomplished using the GTAP Land Use Database and time paths of land quantities by use over a 100 year period. These land quantity projections are, in turn, based on matrices of land use transition probabilities and own return elasticities of transition probabilities for the USA. We find that over time there is a rise in the land use response to increases in own-returns and in own return elasticities, while there is a fall in the calibrated CET value. The value of the CET parameter decreases at a decreasing rate every five-year period, although it can be approximated by a linear relationship in the short to medium run. We can use this linear interpolation to estimate the average CET parameter associated with any desired length of run.
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Lianos, Vasilis. Automation and Artificial Intelligence in the possible transition to a postcapitalist society. Mέta | Centre for Postcapitalist Civilisation, marzo 2023. http://dx.doi.org/10.55405/mwp17en.
Abstract (sommario):
Throughout history, technology and its evolution have significantly impacted the societal modes of production and organisation. The highest rise in technological evolution has been observed under the capitalist system. Technology has not, as of yet, proved to be capitalism’s demise. However, some believe that advances in Artificial Intelligence and automation render them radically different technologies to those of the past and will mean capitalism’s demise and the dawn of a new, postcapitalist era. This paper will assess this claim by looking at historical evidence and contemporary theoretical and empirical work to argue that, while it is possible that such technologies are radically different to those of the past and might bring about the fall of the capitalist system, such claims cannot yet be substantiated due to the early stage of the aforementioned technologies’ development.
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Pradhananga, Manisha, David A. Raitzer, Iva Sebastian-Samaniego e Daryll Naval. Decarbonization Pathways in Developing Asia: Evidence from Modeling Scenarios. Asian Development Bank, dicembre 2023. http://dx.doi.org/10.22617/wps230593-2.
Abstract (sommario):
The Sixth Assessment Report of the Intergovernmental Panel on Climate Change incorporated an ambitious model intercomparison effort that compiled thousands of model-scenario combinations to consider low carbon development pathways. This paper explores the evidence within that database to consider decarbonization pathways for developing Asia. Overall, a comparison of the major models finds strong consistency in the transformation of the energy sector required to achieve Paris Agreement goals. This includes a rapid decline in the share of coal—a mainstay of the power sector in developing Asia— and a substantial rise in renewable energy. The cost of the transition can be relatively low if mitigation efforts are efficient, as assumed in the models.
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Salavisa, Isabel, Mark Soares e Sofia Bizarro. A Critical Assessment of Organic Agriculture in Portugal: A reflection on the agro-food system transition. DINÂMIA'CET-Iscte, 2021. http://dx.doi.org/10.15847/dinamiacet-iul.wp.2021.05.
Abstract (sommario):
Over the last few decades, the organic agriculture sector has experienced sustained growth. Globally, as well as in the European Union and Portugal, organic production accounts for just under 10% of total Utilised Agricultural Area (UAA) (FiBL, 2019; Eurostat, 2019; DGADR, 2019; INE, 2019; GPP, 2019). This growth has been seen in terms of production, number of producers, amount of retail sales, imports and exports. This article attempts to build on the multi-level perspective (MLP) of the socio-technical (ST) transitions theory by employing a whole systems analysis (Geels, 2018) of organic agriculture in Portugal, which defends an integrated vision of the systems, where multiple interactions occur within and among the niche, the regime and the landscape levels. This approach has been employed in order to develop a critical analysis of the current state of the Portuguese organic agriculture sector, stressing the multiplicity of elements that are contributing to the agro-food system´s transformation into a more sustainable one. In fact, the agro-food system is related with climate change but also has connections with other domains such as public health, water management, land use and biodiversity. Therefore, it is affected by shifts in these areas. This analysis considers developments in increasing domestic organic production, number of producers, amount of retail sales, imports, exports, market innovations, and the sector´s reconfiguration. The organic sector´s increase has been attributed to European regulation, institutionalization, standardization, farmer certification, external (government) subsidy support programs, incremental market improvements (visibility and product access), the emergence of new retailers, the rise of supporting consumers and a shift away from conventional agriculture (Truninger, 2010; DGADR, 2019; Pe´er et al, 2019). However, together with positive incentives, this sector also faces numerous barriers that are hindering a faster transformation. Difficulties for the sector to date have included: product placement; a disconnect between production, distribution and marketing systems; high transport costs; competition from imports; European subsidies focused on extensive crops (pastures, olive groves, and arable crops), entailing a substantial growth in the area of pasture to the detriment of other crops; the fact that the products that are in demand (fresh vegetables and fruit) are being neglected by Portuguese producers; expensive certification procedures; lack of adequate support and market expertise for national producers; the hybrid configuration of the sector; and price. Organic agriculture as a niche-innovation is still not greatly contributing to overall agricultural production. The low supply of organic products, despite its ever-increasing demand, suggests that a transition to increased organic production requires a deeper and faster food system reconfiguration, where an array of distinct policies are mobilized and a diversity of actions take place at different levels (Geels, 2018; Pe´er et al, 2019). This paper will attempt to contribute an overall critical assessment of the organic sector´s features and evolution and will identify some of the main obstacles to be overcome, in order to boost the sustainability transition of the agro-food system in Portugal.
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Dabrowski, Anna, e Pru Mitchell. Effects of remote learning on mental health and socialisation. Literature Review. Australian Council for Educational Research, novembre 2022. http://dx.doi.org/10.37517/978-1-74286-682-6.
Abstract (sommario):
This literature review focuses on the effects of remote learning on mental health, including acute mental health issues and possible ongoing implications for student wellbeing and socialisation. It provides an overview of some of the challenges that can impact on the mental health and relationships of young people, many of which have accelerated or become more complex during the COVID-19 pandemic. In the light of concern about rising antisocial behaviour and extremism there is a focus on socialisation and self-regulation on return to school post-pandemic. In the face of limited Australian research on these topics, the review takes a global focus and includes experiences from other countries as evidenced in the emerging research literature. Based on these findings the review offers advice to school leaders regarding the self-regulatory behaviours of students on return to school after periods of remote learning, and addresses social and emotional considerations as students transition back to school. It also considers ways in which schools can promote wellbeing and respond to mental health concerns as a way to address and prevent antisocial behaviours, recognise manifestations in extremism (including religious fundamentalism), and challenge a general rise in extremist views.
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Price, Roz. Overview of Political Economy Analysis Frameworks in the Area of Climate Governance and Key Issues to Consider. Institute of Development Studies (IDS), giugno 2021. http://dx.doi.org/10.19088/k4d.2021.088.
Abstract (sommario):
Despite global recognition of the urgency of climate action and the need to transition to a low-carbon economy, greenhouse gas emissions continue to rise, and adaptation needs remain urgent. For a number of years, there have been calls for greater attention to political economy in tackling climate change and development outcomes. The political economy analysis is important as it can be used to assess the factors that may enable or constrain the implementation of climate change policies and actions and sustain political commitment. A framework can guide the process of political economy analysis, identifying relevant stakeholders, their incentives and motives, and other structural factors. This rapid review summarises several such frameworks specifically aimed at climate governance issues developed in recent years, some of these also include useful guidance and steps on the implementation of the framework. The review focuses strictly on the literature around political economy analyses in relation to climate change. It does not explore the history of and rationale for political economy analysis in development in general, nor the accompanying frameworks or operational How-To guides. Another K4D helpdesk by Lucas (2019) looking at what factors affect the political will of African governments to address climate change highlights a number of political economy frameworks that may also be useful to draw on.