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Auswahl der wissenschaftlichen Literatur zum Thema „Diversification temporelle“
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Zeitschriftenartikel zum Thema "Diversification temporelle"
Beaulieu, Jean-Philippe. „La continuité temporelle et ses manifestations graphiques dans la bande dessinée historique“. Études littéraires 29, Nr. 1 (12.04.2005): 59–70. http://dx.doi.org/10.7202/501147ar.
Der volle Inhalt der QuelleFévrat, Noémie. „The Effects of U.S. State Legislative Term Limits on Political Representation and Professionalization“. Politique américaine N° 40, Nr. 1 (20.06.2023): 51–80. http://dx.doi.org/10.3917/polam.040.0051.
Der volle Inhalt der QuellePIMPLE, Uday. „Dynamique spatio-temporelle de la forêt de mangrove dans la province de Trat en Thaïlande“. BOIS & FORETS DES TROPIQUES 353 (01.10.2022): 93–94. http://dx.doi.org/10.19182/bft2022.353.a36999.
Der volle Inhalt der QuelleAdedigba, Saliou, Rodrigue Vivien Cao Diogo, Luc Hippolyte Dossa und Birthe Katharina Paul. „Stratégies d’adaptation des élevages bovins sédentaires face à la territorialisation des parcours et aux insuffisances alimentaires au Nord Bénin“. Revue d’élevage et de médecine vétérinaire des pays tropicaux 76 (20.12.2023): 1–11. http://dx.doi.org/10.19182/remvt.37257.
Der volle Inhalt der QuelleDubreuil, Vincent, Damien Arvor und Nathan Debortoli. „Monitoring the pioneer frontier and agricultural intensification in Mato Grosso using SPOT vegetation images“. Revue Française de Photogrammétrie et de Télédétection, Nr. 200 (19.04.2014): 2–11. http://dx.doi.org/10.52638/rfpt.2012.56.
Der volle Inhalt der QuelleGünter, Sven, Michael Weber, Bernd Stimm und Reinhard Mosandl. „Lier la sylviculture tropicale à la gestion forestière durable“. BOIS & FORETS DES TROPIQUES 314, Nr. 314 (01.12.2012): 25. http://dx.doi.org/10.19182/bft2012.314.a20487.
Der volle Inhalt der QuelleKeichinger, Olivier, Loïc Viguier, Guénaëlle Corre-Hellou, Antoine Messéan, Frédérique Angevin und Christian Bockstaller. „Un indicateur évaluant la diversité globale des rotations : de la diversité des cultures aux services écosystémiques“. Agronomie, environnement & sociétés 11, Nr. 1 (15.06.2021). http://dx.doi.org/10.54800/dgr543.
Der volle Inhalt der QuelleGaspar, Maria Clara De Moraes Prata, und Ursula Verthein. „Pratiques et Significations de L’activité Culinaire : Une Approche Comparative entre des Femmes Françaises et Brésiliennes“. ILUMINURAS 20, Nr. 51 (21.12.2019). http://dx.doi.org/10.22456/1984-1191.95716.
Der volle Inhalt der QuelleLEBRUN, Anaïs. „Application du protocole de suivi dendrométrique des réserves forestières à la réserve naturelle nationale de la tourbière des Dauges“. Tome 27 | 2018, Nr. 27 (25.06.2018). http://dx.doi.org/10.25965/asl.846.
Der volle Inhalt der QuelleDissertationen zum Thema "Diversification temporelle"
Sanfilippo, Gilles. „Test empirique du phénomène de diversification temporelle“. Grenoble 2, 2002. http://www.theses.fr/2002GRE2A002.
Der volle Inhalt der QuelleThomine, Eva. „Effet de la diversification spatiale et temporelle des cultures à l’échelle du paysage agricole sur le biocontrôle et les ravageurs de culture“. Electronic Thesis or Diss., Université Côte d'Azur (ComUE), 2019. http://www.theses.fr/2019AZUR6032.
Der volle Inhalt der QuelleLandscape simplification have drastically reduced arthropods biodiversity in agricultural landscapes. Plant diversification has already been proved to be very positive for natural enemies notably through the provision of alternative food sources. At the landscape scale, natural habitats have been proved to be very positive for natural enemies and biocontrol. However, the efficacy of natural areas in enhancing biocontrol is more and more controversial. Additionally, farmers willingness to preserve or increase natural habitats in and around their fields is not systematic. Therefore, I decided during my PhD to assess the effect of increasing landscape plant diversity, by manipulating crops only in space and time, on the presence and the performance of natural enemies. In a first part, I assess the economical and social feasibility of increasing crop richness at a landscape scale. Then, in a second part, four different chapters assess the question of crop diversification in space and time on biocontrol at different scales of study. The first chapter shows a study maid at the laboratory scale, which aim is to assess the effect of crop diversification on the predator Harmonia axyridis, on its development and its predation capacity on four different types of aphids. The movement of the predator, hereafter called spillover, regarding the different food sources available is also assessed. The second chapter shows a similar study but laid at a bigger scale (greenhouse) and assesses the population dynamics, the predation capacity and the spillover of a population of Nesidiocoris tenuis regarding differential crop availability in space and time. The third chapter describes two experiments laid at the field scale which aim is to assess the effect of crop diversity, differing in space and time, on the abundance of naturally occurring pests and natural enemies. Abundances of pests and natural enemies was evaluated as a proxy of biocontrol and spillover between patches of crops was assessed in the polycultural treatment. Finally, the last chapter assessed the effect of crop diversity and crop configuration at the landscape scale on the abundance of aphids and aphidophagous predators (coccinellids, lacewings and spiders). The data were collected in the Hebei Province of China. Results at the laboratory and greenhouse scale show that individuals and populations of natural enemies are highly impacted by the functionality of the plant they are exposed to. Indeed, the natural enemies growth in polyculture was the result of the combined effect of the crops tested separately in monoculture. However, the spillover and the biocontrol were highly stimulated in polyculture, sometimes more than in monoculture. At the field scale, ladybirds spillover was higher in polyculture and populations of pests and natural enemies were strongly correlated in polyculture compare to monoculture. Finally, at the field scale, crop diversity had a positive effect on ladybirds abundance and a negative one on aphids abundance. Additionally, fields of small size increased the presence of lacewings. These results show that increasing crop diversity, and decreasing field size, might help to enhance the presence of natural enemies and increase the biocontrol through promoting the spillover of natural enemies between the different cultivated fields
Lemarchand, Leslie. „Babillage et diversification alimentaire : pratiques et influence de l'exposition aux textures sur le contrôle oro-moteur“. Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE2011/document.
Der volle Inhalt der QuelleDuring the first years of life, the child gradually moves from an exclusively milk diet to a family diet through a period of complementary feeding. It is also during this period that babbling and mastication appear. They are both associated with the emergence of mandibular rhythmic oscillations (MacNeilage, 1998). This common motor gesture and the co-occurrenceof eating disorders and speech / language disorders suggest a link between the development of speech and eating activities. To date, only few studies described the characteristics of the early development of these two activities, and there are also very few that have tried to verify this link experimentally. This PhD project aims to meet these two goals. The first part of our workpursue the objective of describing the feeding behavior of young French children during complementary feeding period and to compare them with the recommendations of public health organizations (WHO, Inpes). A parental questionnaire entitled "Inventaire des Conduites Alimentaires" was created and allowed to examine the modalities of introduction of complementary foods, including those of textures, in a sample of 806 French typically developing children. The second part of our work aims to test the link between babbling and chewing in two studies. Using acoustic and video data we first examined longitudinally thedevelopmental trajectories of syllabic and masticatory temporal patterns between 8 and 14 months in 4 Quebecers children. Afterwards, we analyzed the characteristics of these temporal patterns in 14 French 10 months old children according to the development of communicative gestures and the type of textures consumed. The results show an average age of food transitionbetween 4 and 5 months and a sequential introduction of textures during dietary diversification. Moreover, the trajectories of the syllabic and masticatory patterns obtained suggest on the one hand an overall improvement of the oro-motor control between 10 and 12 months, and on the other hand that the syllabic temporal patterns would be influenced by the type of textures to which the child is regularly exposed. These observations thus give rise to arguments for the existence of a one-sided interdependence between speech and feeding activities at an early stage of development
El, Alami Tachfine. „Ajustement pour risque sous IFRS 17 : méthodologie de calcul et liens avec le cadre Solvabilité II“. Electronic Thesis or Diss., Lyon 1, 2023. http://www.theses.fr/2023LYO10120.
Der volle Inhalt der QuelleAs part of its efforts to harmonize and clarify information, the European Union has required listed companies to disclose their consolidated financial statements under IFRS (International Financial Reporting Standards) since 2005. Issued on May 18, 2017, IFRS 17 applies to insurance, reinsurance, and investment contracts with discretionary profit sharing. In Europe, IFRS 17 applies in a multi-standard environment where insurers are subject to the Solvency II regulation in addition to the national standards applicable in each jurisdiction. Since its enforcement on January 1, 2016, Solvency II has radically changed the insurance industry in Europe. Similarly, IFRS 17 will constrain insurers to rethink how they manage their risks, with implementation costs as high as those linked to the adoption of Solvency II. Entities are exploring the similarities between the two frameworks, particularly regarding data, tools, and cash flow projection models, to avoid duplicating IFRS 17 and Solvency II production work. This PhD dissertation extends the possibilities of synergies between the two frameworks to modeling non-financial risks. While financial risks are reflected in the measurement of the present value of future cash flows, IFRS 17 requires the estimation of uncertainty compensation for non-financial risks. This compensation, called risk adjustment (RA), is one of the most important blocks of liabilities. Moreover, it impacts the valuation of future profits and the IFRS result. As the standard does not impose the RA valuation methodology, insurers can opt for the method that allows them to manage their results. Chapters 1 and 2 provide a method for estimating RA that brings together the method for assessing the SCR of Solvency II and the requirements of IFRS 17. Chapter 1 sets out the methods for calculating RA for elementary risks based on the related marginal SCRs. Using elementary SCRs calculated under Solvency II can be of genuine operational interest. However, adjustments are necessary to revise the risk horizon and the underlying confidence level. Under assumptions of normality and log-normality of the underlying risk factors, formulas linking the IFRS 17 shocks and their counterparts under Solvency II are derived. Chapter 2 presents a framework for aggregating the elementary RAs obtained in the previous chapter. Similarly to Solvency II, the risk diversification effect is based on an elliptical aggregation exploiting the correlations between the risk modules. This chapter introduces the concept of correlation to the ultimate as opposed to a correlation to one year. In addition to the inter-risk dependence effects contained in the one-year correlation, the ultimate correlation captures a temporal diversification effect. Closed formulas linking the two correlations are demonstrated for different dependence structures between future cash flows. Analytical properties related to these structures are discussed, notably in terms of the behavior of the RA and its sensitivity to the dependence parameters. Chapter 3 describes the mathematical challenges in interpreting these principles and the theoretical problems that arise from them. It will demonstrate the importance of identifying theoretical areas of application where these principles are respected and the need to suggest more appropriate modifications of these assumptions or even develop standards of actuarial practice. Chapter 4 provides a mathematical interpretation of the model called the Variable Fee Approach (VFA). It suggests techniques for allocating profitability across cohorts using IFRS 17 metrics. It discusses the compliance of these methods with the standard's requirements and explores the European exemption option and its impact on the presentation of financial statements
Koch, Erwan. „Outils et modèles pour l'étude de quelques risques spatiaux et en réseaux : application aux extrêmes climatiques et à la contagion en finance“. Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10138/document.
Der volle Inhalt der QuelleThis thesis aims at developing tools and models that are relevant for the study of some spatial risks and risks in networks. The thesis is divided into five chapters. The first one is a general introduction containing the state of the art related to each study as well as the main results. Chapter 2 develops a new multi-site precipitation generator. It is crucial to dispose of models able to produce statistically realistic precipitation series. Whereas previously introduced models in the literature deal with daily precipitation, we develop a hourly model. The latter involves only one equation and thus introduces dependence between occurrence and intensity; the aforementioned literature assumes that these processes are independent. Our model contains a common factor taking large scale atmospheric conditions into account and a multivariate autoregressive contagion term accounting for local propagation of rainfall. Despite its relative simplicity, this model shows an impressive ability to reproduce real intensities, lengths of dry periods as well as the spatial dependence structure. In Chapter 3, we propose an estimation method for max-stable processes, based on simulated likelihood techniques. Max-stable processes are ideally suited for the statistical modeling of spatial extremes but their inference is difficult. Indeed the multivariate density function is not available and thus standard likelihood-based estimation methods cannot be applied. Under appropriate assumptions, our estimator is efficient as both the temporal dimension and the number of simulation draws tend towards infinity. This approach by simulation can be used for many classes of max-stable processes and can provide better results than composite-based methods, especially in the case where only a few temporal observations are available and the spatial dependence is high
Lemarchand, Leslie. „Babillage et diversification alimentaire : pratiques et influence de l'exposition aux textures sur le contrôle oro-moteur“. Thèse, 2018. http://hdl.handle.net/1866/22554.
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