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Статті в журналах з теми "Valeur-p":
Denworth, Lydia. "La valeur-p : un problème significatif." Pour la Science N° 510 - avril, no. 4 (January 4, 2020): 40–46. http://dx.doi.org/10.3917/pls.510.0040.
Abi Aad, Albert. "LAM YAF’AL: négation descriptive ou impose “par défaut”?" Hawliyat 10 (January 4, 2019): 41–48. http://dx.doi.org/10.31377/haw.v10i0.315.
Meyer, Suter, and Laederach-Hofmann. "Belastungstoleranz und Lebensqualität – Effekte eines umfassenden ambulanten Rehabilitationsprogramms für Patienten mit chronischer Herzinsuffizienz." Praxis 91, no. 38 (September 1, 2002): 1531–39. http://dx.doi.org/10.1024/0369-8394.91.38.1531.
Oladele, O. A., D. F. Adene, T. U. Obi, H. O. Nottidge, and A. I. Aiyedun. "Etude hématologique séquentielle d’une infection expérimentale induite par le virus de la maladie de Gumboro chez des poulets, des dindes et des canards." Revue d’élevage et de médecine vétérinaire des pays tropicaux 58, no. 4 (April 1, 2005): 211. http://dx.doi.org/10.19182/remvt.9914.
Laccourreye, O., and H. Maisonneuve. "Vers un nouveau seuil de la valeur de p ?" Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale 135, no. 5 (October 2018): 293–94. http://dx.doi.org/10.1016/j.aforl.2018.01.005.
Philippon, Patrice. "Addendum à quelques remarques sur des questions d'approximation diophantienne." Bulletin of the Australian Mathematical Society 61, no. 1 (February 2000): 167–69. http://dx.doi.org/10.1017/s0004972700022127.
Omoruyi, G. O., I. O. Busari, and O. J. Babayemi. "In-vitro assessment of the nutritive value of vegetable wastes as feed supplement for ruminants." Nigerian Journal of Animal Production 49, no. 5 (May 26, 2023): 138–46. http://dx.doi.org/10.51791/njap.v49i5.3772.
Delafosse, Arnaud, and Abdesalam Adoum Doutoum. "Comparaison de trois tests sérologiques pour le diagnostic de terrain du surra (trypanosomose à Trypanosoma evansi) chez le dromadaire au Tchad." Revue d’élevage et de médecine vétérinaire des pays tropicaux 53, no. 3 (March 1, 2000): 249. http://dx.doi.org/10.19182/remvt.9720.
Orta de Velasquez, M. T., N. Martin, V. Bodison, and A. Laplanche. "Effet de la matrice de l'eau sur l'élimination des micropolluants organiques par ozonation. Partie 2. Simulation de l'élimination d'un micropolluant dans les réacteurs idéaux." Revue des sciences de l'eau 7, no. 3 (April 12, 2005): 309–23. http://dx.doi.org/10.7202/705203ar.
SARR, S. M., M. NDIAYE, A. THIAM, and M. FAYE. "Diversité algale de l’aire marine protégée de Joal-Fadiouth, Sénégal - Valeurs agronomique et énergétique." Techniques Sciences Méthodes 11 (November 20, 2019): 15–30. http://dx.doi.org/10.36904/tsm/201911015.
Дисертації з теми "Valeur-p":
Matei, Ana-Maria. "Première valeur propre du p-Laplacien et applications p-harmoniques." Tours, 1999. http://www.theses.fr/1999TOUR4008.
Rambaud, Alexandre Pierre. "La valeur de l’existence en comptabilité : pourquoi et comment l'entreprise peut (p)rendre en compte des entités environnementales pour « elles-mêmes » ?" Thesis, Paris 9, 2015. http://www.theses.fr/2015PA090050/document.
This thesis studies the integration of environmental entities for their own sakes (EEOS) in external corporate accounting. We firstly place our question (Q) in the framework of Human – Nature relationships, through an analysis of Modernity. This leads us to define 3 generic approaches of Q: a Modern Orthodox one, focused on objectification and which includes in particular the existence value; a Modern one which refers to Environmental Ethics, where non-human entities are subjectified through the intrinsic value; an a-Modern Relational Ecological one. Then we prove that the fundamental narrative of financial accounting is the one of the maintenance of a capital – Fundist, Materialist or monetary. Thus we redefine the notion of capital in an extended way and we elaborate an Integrative Accounting Model (IAM), which systematises the expansion of financial statements to every capital from the capital maintenance principle. We finally connect the integration of EEOS, according to the different generic approaches, to the maintenance of some capitals and we apply the IAM to these capitals in order to obtain accounting models which respond to Q in a systematic way
FOURNET-FAYAS, MARTINE. "Valeur semeiologique de l'anticorps anti-proteine p 25 isole, depiste chez les donneurs de sang au centre de transfusion sanguine de lyon." Lyon 1, 1988. http://www.theses.fr/1988LYO1M087.
Saintier, Nicolas. "Sur quelques problèmes non-linéaires en analyse géométrique." Paris 6, 2005. http://www.theses.fr/2005PA066546.
Pluntz, Matthieu. "Sélection de variables en grande dimension par le Lasso et tests statistiques - application à la pharmacovigilance." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASR002.
Variable selection in high-dimensional regressions is a classic problem in health data analysis. It aims to identify a limited number of factors associated with a given health event among a large number of candidate variables such as genetic factors or environmental or drug exposures.The Lasso regression (Tibshirani, 1996) provides a series of sparse models where variables appear one after another depending on the regularization parameter's value. It requires a procedure for choosing this parameter and thus the associated model. In this thesis, we propose procedures for selecting one of the models of the Lasso path, which belong to or are inspired by the statistical testing paradigm. Thus, we aim to control the risk of selecting at least one false positive (Family-Wise Error Rate, FWER) unlike most existing post-processing methods of the Lasso, which accept false positives more easily.Our first proposal is a generalization of the Akaike Information Criterion (AIC) which we call the Extended AIC (EAIC). We penalize the log-likelihood of the model under consideration by its number of parameters weighted by a function of the total number of candidate variables and the targeted level of FWER but not the number of observations. We obtain this function by observing the relationship between comparing the information criteria of nested sub-models of a high-dimensional regression, and performing multiple likelihood ratio test, about which we prove an asymptotic property.Our second proposal is a test of the significance of a variable appearing on the Lasso path. Its null hypothesis depends on a set A of already selected variables and states that it contains all the active variables. As the test statistic, we aim to use the regularization parameter value from which a first variable outside A is selected by Lasso. This choice faces the fact that the null hypothesis is not specific enough to define the distribution of this statistic and thus its p-value. We solve this by replacing the statistic with its conditional p-value, which we define conditional on the non-penalized estimated coefficients of the model restricted to A. We estimate the conditional p-value with an algorithm that we call simulation-calibration, where we simulate outcome vectors and then calibrate them on the observed outcome‘s estimated coefficients. We adapt the calibration heuristically to the case of generalized linear models (binary and Poisson) in which it turns into an iterative and stochastic procedure. We prove that using our test controls the risk of selecting a false positive in linear models, both when the null hypothesis is verified and, under a correlation condition, when the set A does not contain all active variables.We evaluate the performance of both procedures through extensive simulation studies, which cover both the potential selection of a variable under the null hypothesis (or its equivalent for EAIC) and on the overall model selection procedure. We observe that our proposals compare well to their closest existing counterparts, the BIC and its extended versions for the EAIC, and Lockhart et al.'s (2014) covariance test for the simulation-calibration test. We also illustrate both procedures in the detection of exposures associated with drug-induced liver injuries (DILI) in the French national pharmacovigilance database (BNPV) by measuring their performance using the DILIrank reference set of known associations
Vo, Hoang Hung. "Reaction-diffusion equations and dynamics of population facing a climate change." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066219/document.
The thesis is concerned with various models arising from the study of the dynamics of the population facing a climate change. We aim at achieving two following goals: The first one is to extend original work of Berestycki, Diekmann, Nagelkerke, Zegeling [5] and later developments of Berestycki and Rossi [18,19] the second one is to investigate the deeper mathematical aspects of this model and deal with the new problems where nonlocal and nonlinear diffusion are considered. The Chapter 1 deals with the problem in an infinite cylindrical domain and in the whole space where the reaction term is (resp.) independent or periodically dependent on time. The novelty of this work is that we consider a global condition in term of the spectral theory to assume that the environment of the population is globally unfavorable at infinity instead of pointwise unfavorable near infinity as in [5,18,19]. We further study the concentration of the species in the cylindrical domain when the exterior domain is changed to be extremely unfavorable. In the Chapter 2, we focus on conditioning the a sharp criterion for the existence, nonexistence and uniqueness of positive solution of fully semilinear elliptic equation. When the divergence of the drift term is zero, the existence of positive solution can be characterized by the amplitude of the drift term under some fair assumptions on the growth rate. The large time behavior of associated parabolic equation is considered, where we have to deal with the case of possibly unbounded coefficients. The Chapter 3 extends the existence, nonexistence and uniqueness in the second chapter for a quasilinear equation involving p-laplacian operator. The main difficulty is that it seems hard to apply the strong maximum principle and thus we make use a variational approach to attain an important comparison principle. In Chapter 4, we investigate three notion of generalized principal eigenvalues for nonlocal operators in bounded and unbounded domains (eventually $\R^N$). If the kernel is compactly supported, we can also prove the equivalence of these eigenvalues in unbounded domain. We consider the limits of the eigenvalues of the rescaling operator with respect to the diffusion. The results are very different depending on the rate of rescaling. In Chapter 5, by the help of the results in Chapter 4, we consider the nonlocal evolution equation and prove that the solution of evolution equation converges to the unique stationary solution, whose existence is directly conditioned by the sign of the generalized principal eigenvalue. The convergences holds in $L^\infty(\R^N)$ and $L^p(\R^N)$, $p>0$. In the second part of this chapter, we further investigate the singular limits of the unique positive solution of the rescaling equations. We show that the unique solution of nonlocal equation either approximates the unique solution of local KPP type equation or approximates a solution of reaction-equation, which may not be unique
Bassil, Sabina. "Etude de la répartition structurale des acides féruliques et p-coumarique dans la chènevotte et la poudre organique de chanvre (Cannabis sativa) : exploration des voies de fractionnement pour l'obtention d'extraits à valeur ajoutée." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30257/document.
The industrial transformation of common cultivated crops generates significant amounts of by-products that can often be valorized as a source of value- added molecules for biochemistry. The present work focuses on an original raw material: hemp (Cannabis sativa L.), rich in a particularly, more accessible, lignin having different characteristics than that of wood. Hemp defibering process (Cannabis sativa L.) generates 30% fibers and 70% lignocellulosic by-products: hemp shives (50%) and hemp dust (20%) which were studied in this work as a potential source of hydroxycinnamic acids (HCA) such as ferulic (FA) and p-coumaric (pCA) acids. Their structural distribution in the lignocellulosic matrix was analytically evaluated by multistage hydrolysis. FA is mostly etherified to the lignocellulosic structure, while pCA is mainly esterified in hemp dust and equally bound through ester and ether linkages in hemp shives. Biorefinery of hemp by-products, to obtain extracts and raffinates which are rich in phenolic acids, was studied by using microwave-assisted extraction and thermo-mechano-chemical extraction using twin-screw extruder. Both methods have helped to intensify the extraction of HCA. For hemp shives, alkaline-hydro alcoholic solvent lead to the optimum yields of pCA by microwave extraction and of FA by twin-screw extrusion, while for hemp dust, the same solvent is the most effective for the extraction of both phenolic acids using twin-screw extraction. The enrichment of HCA extracts by adsorption on different microporous solids has been investigated. The zeolite *BEA (beta) showed a high potential of HCA adsorption from both model solutions and extracts obtained from fractionation
Derlet, Ann. "Eigenvalues of the p-Laplacian in population dynamics and nodal solutions of a prescribed mean curvature problem." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209932.
La première partie (chapitres 1-2-3) traite d'un problème trouvant son origine en biologie mathématique, à savoir l'étude de la survie à long terme d'une population dont l'évolution est gouvernée par une équation parabolique non-linéaire. Dans le modèle considéré, le mécanisme de diffusion est contrôlé par le p-Laplacien, la non-linéarité est de type logistique et fait intervenir un poids m pouvant changer de signe, et les conditions aux limites sont de flux nul. Le poids m correspond à une répartition des ressources devant permettre la survie de la population. Dans le chapitre 1, nous déterminons entre autres un critère de survie à long terme faisant intervenir la valeur propre principale du p-Laplacien avec poids m. Cette valeur propre apparait, plus précisément, comme la valeur limite d'un paramètre en-dessous de laquelle toute solution positive de l'équation converge vers zéro lorsque t tend vers l'infini. Ceci nous conduit naturellement au problème de minimiser la valeur propre en question lorsque m varie dans une classe adéquate de poids. Dans le chapitre 2, nous prouvons l'existence de minimiseurs et montrons que ces derniers satisfont une propriété de type “bang-bang”. Plusieurs propriétés de montonie sont aussi étudiées dans des situations géométriques particulières, et une caractérisation complète est donnée en dimension 1. Le chapitre 3 est consacré à l'élaboration de simulations numériques, où l'algorithme utilisé combine un méthode de plus grande pente avec une représentation de certains ensembles comme ensembles de niveaux.
La deuxième sujet de cette thèse (chapitre 4) est un problème elliptique faisant intervenir l'opérateur de courbure moyenne. Nous nous intéressons à l'existence et à la multiplicité de solutions nodales de ce problème. Nous montrons que, si un certain paramètre de l'équation est suffisamment grand, il existe une solution nodale qui change de signe exactement deux fois. Nous établissons également l'existence d'un nombre arbitrairement grand de solutions nodales. Enfin, dans le cas particulier où le domaine est une boule, un résultat de brisure de symétrie est obtenu, résultat qui induit l'existence d'au moins deux solutions à deux domaines nodaux.
Doctorat en Sciences
info:eu-repo/semantics/nonPublished
Caron, Nathalie. "Approches alternatives d'une théorie non informative des tests bayésiens." Rouen, 1994. http://www.theses.fr/1994ROUES028.
Anane, Aomar. "Etude des valeurs propres et de la résonance pour l'opérateur p-laplacien." Doctoral thesis, Universite Libre de Bruxelles, 1988. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/213321.
Книги з теми "Valeur-p":
Seguin, Marie-Christine. José Lezama Lima: ingénieur en poésie, études poétiques cubaines. Teseo, 2018. http://dx.doi.org/10.55778/ts956520207.
Частини книг з теми "Valeur-p":
Passare, Mikael. "Courants meromorphes et egalite de la valeur principale et de la partie finie." In Séminaire d’Analyse P. Lelong — P. Dolbeault — H. Skoda, 157–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/bfb0081982.
Serre, Jean-Pierre. "Valeurs propres des endomorphismes de Frobenius (d’après P. Deligne)." In Oeuvres - Collected Papers III, 179–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-39816-2_99.
Fernique, X. "Continuité de certaines fonctions aléatoires gaussiennes à valeurs dans l p , 1 ≤ p < ∞." In High Dimensional Probability II, 137–61. Boston, MA: Birkhäuser Boston, 2000. http://dx.doi.org/10.1007/978-1-4612-1358-1_10.
Serre, Jean-Pierre. "Répartition asymptotique des valeurs propres de l’opérateur de Hecke T p." In Springer Collected Works in Mathematics, 543–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-41978-2_38.
DE MAISTRE, S., E. GEMPP, P. LOUGE, N. VALLÉE, and J. É. BLATTEAU. "Une nouvelle cible potentielle pour diminuer le risque d'accident de désaturation." In Médecine et Armées Vol. 46 No.2, 155–62. Editions des archives contemporaines, 2018. http://dx.doi.org/10.17184/eac.7357.
Von Reden, Sitta. "Re-evaluating Gernet: Value and Greek Myth." In From Myth to Reason?, 51–70. Oxford University PressOxford, 1999. http://dx.doi.org/10.1093/oso/9780198152347.003.0003.
"Les valeurs-p et les valeurs hors échelle." In Les mathématiques en images, 154–55. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1899-0.c059.
André, Yves. "Théorie des motifs et interprétation géométrique des valeurs p-adiques de G-functions (une introduction)." In Number Theory, 37–60. Cambridge University Press, 1995. http://dx.doi.org/10.1017/cbo9780511661990.003.