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Auswahl der wissenschaftlichen Literatur zum Thema „Polluants primaires et secondaires“
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Zeitschriftenartikel zum Thema "Polluants primaires et secondaires"
Ernst, Sophie. „Égale dignité des primaires et des secondaires ?“ Le Télémaque 28, Nr. 2 (2005): 9. http://dx.doi.org/10.3917/tele.028.0009.
Der volle Inhalt der QuelleMadrid, Carlos, Kahina Bouferrache, Bernadette Biollaz, Peter Möller und Sandra Toma. „Stomatodynies primaires et secondaires : un diagnostic difficile“. Douleurs : Evaluation - Diagnostic - Traitement 9, Nr. 6 (Dezember 2008): 298–310. http://dx.doi.org/10.1016/j.douler.2008.08.003.
Der volle Inhalt der QuelleWoods, Ken, und José Grégoire. „Les bénéfices primaires et secondaires du jeu psychologique“. Actualités en analyse transactionnelle 126, Nr. 2 (2008): 19. http://dx.doi.org/10.3917/aatc.126.0019.
Der volle Inhalt der QuelleBalmer, A., L. Zografos, S. Uffer und F. Munier. „Maladie de Coats et télangiectasies primaires ou secondaires“. EMC - Ophtalmologie 2, Nr. 3 (Januar 2005): 1–13. http://dx.doi.org/10.1016/s0246-0343(05)40505-5.
Der volle Inhalt der QuelleBalmer, A., L. Zografos, S. Uffer und F. Munier. „Maladie de Coats et télangiectasies primaires ou secondaires“. EMC - Ophtalmologie 2, Nr. 3 (August 2005): 185–201. http://dx.doi.org/10.1016/j.emcop.2005.07.001.
Der volle Inhalt der QuelleDemarquay, G., und C. Créac’h. „Migraine, céphalée trigémino-autonomiques et autres tableaux de céphalées primaires : les pièges diagnostiques“. Douleur et Analgésie 33, Nr. 3 (September 2020): 147–52. http://dx.doi.org/10.3166/dea-2020-0127.
Der volle Inhalt der QuelleLe Grognec, Philippe, und Anh Le van. „Bifurcations primaires et secondaires d'un cylindre sous compression axiale“. Revue Européenne des Éléments Finis 12, Nr. 1 (Januar 2003): 7–41. http://dx.doi.org/10.3166/reef.12.7-41.
Der volle Inhalt der Quellevan Romburgh, P. „Méthode facile pour caractériser de petites quantités d'amines primaires et secondaires“. Recueil des Travaux Chimiques des Pays-Bas 4, Nr. 6 (06.09.2010): 189–94. http://dx.doi.org/10.1002/recl.18850040607.
Der volle Inhalt der QuelleStiegler, Bernard, und Nicolas Donin. „Le circuit du désir musical“. Circuit 15, Nr. 1 (09.02.2010): 41–56. http://dx.doi.org/10.7202/902340ar.
Der volle Inhalt der QuelleBouchard, Pierrette. „La mixité à l’école. Contributions au débat en cours au Québec“. Diversité 138, Nr. 1 (2004): 121–28. http://dx.doi.org/10.3406/diver.2004.2315.
Der volle Inhalt der QuelleDissertationen zum Thema "Polluants primaires et secondaires"
Sarica, Thibaud. „Modélisation de l'impact du trafic routier sur les concentrations de polluants en zone urbaine“. Electronic Thesis or Diss., Marne-la-vallée, ENPC, 2023. https://these.univ-paris-est.fr/intranet/2023/TH2023ENPC0020.pdf.
Der volle Inhalt der QuelleIn urban areas and in particular in the streets, populations are exposed to high concentrations of nitrogen dioxide (NO2), and particulate matter including organic aerosols (OM) and black carbon (BC). In order to better understand the sources and to represent the evolution of the concentrations in the streets, a multiscale modeling is used, with the street-network model MUNICH coupled to the regional chemistry-transport model Polair3D, and to the chemical module SSH-aerosol to represent the formation of the secondary compounds at the different scales.The influence of volatile organic compound (VOC) emissions from road traffic, non-exhaust emissions due to tire wear and asphalt emissions are studied with sensitivity scenarios. The reference simulation uses standard emission factors obtained from the COPERT methodology. The use of recent speciation measurement data allows for a better characterization of the emitted VOCs, in particular intermediate, semi and low volatile organic compounds (I/S/LVOC), resulting in a reduction of OM concentrations of up to 27%. A 219% increase in BC emissions from tire wear, consistent with the literature, doubles BC concentrations. Asphalt emissions strongly increase I/S/LVOC emissions. The simulated PM concentrations taking into account these emissions compare well with observations, highlighting the importance of better characterizing this missing source in the models.Simulations are then performed for the year 2030 to assess the future impacts of traffic emissions on concentrations. The introduction of ultra-low emission vehicles, compliant with future European emission standards, results in a large reduction in emissions compared to a representative fleet of 2014. NO2 and BC emissions are reduced by 70%, resulting in a decrease in concentrations of 52% for NO2, 42% for BC, and 20% for PM. Emissions from a fleet of only ultra-low emission vehicles are 99% and 80% lower for NO2 and BC respectively, reducing NO2 concentrations by 80% and BC concentrations by 45%.To represent the concentration gradients in the streets and to better estimate the population exposure, a new version of MUNICH is developed. Instead of considering homogeneous concentrations in each street segment, the street volume is discretized with three vertical levels. A horizontal discretization into two zones is also introduced under specific conditions with a parameterization from the OSPM model. The concentrations simulated in the streets of Copenhagen and eastern Paris with this discretized version of MUNICH compare better with observations than those simulated with the homogeneous version, and the concentrations of NO2, BC and OM are higher at the bottom of the streets
BOURUMEAU, KARINE. „Synthese et reactivite de phosphine-boranes primaires et secondaires“. Rennes 1, 1996. http://www.theses.fr/1996REN10193.
Der volle Inhalt der QuelleTanguy, Franck. „Effets du Guidage sur l’apprentissage de connaissances primaires et de connaissances secondaires“. Thesis, Bordeaux 2, 2011. http://www.theses.fr/2011BOR21866/document.
Der volle Inhalt der QuelleThis study deals with the role of instruction in learning scientific knowledge. In science as in other fields, two types of knowledge can be distinguished (Geary, 2007): on the one hand, primary knowledge, which is adaptative knowledge; on the other hand, secondary knowledge which depends on culture and which evolves according to this culture’s successive changes. For Geary (2007), primary knowledge can be acquired incidentally or from implicit learning whereas secondary knowledge requires some explicit learning, and often formal instruction.These two knowledge types also differ in terms of cognitive cost. Sweller’s load theory (2008) shows that the learning process depends on the amount of attentional resources of working memory required by the activity and on the structuring of this information in the long-term memory. While primary knowledge can be learnt with a low cognitive load, learning secondary knowledge will require a high cognitive load. Some types of explicit instruction, such as guidance (e.g., worked examples) have proven effective in the learning process (Renkl, 1997). Indeed, instructional guidance would facilitate knowledge acquisition as it would reduce the amount of cognitive resources involved in the learning process. Thus, instructional guidance to help young learners would be ineffective for primary knowledge and necessary for secondary knowledge. This study also aims at examining the effect of instructional guidance in Biology. Five experiments have been conducted with 420 students in 6th grade. Three guidance methods have been compared: strong guidance, adaptative guidance and no guidance. The first three experiments dealt with the primary knowledge of categorization of living species: living beings (Study I), plants (Study II) and animals (Study III). These experiments, of increasing difficulty, have shown that explicit instruction was not effective in learning this type of knowledge.. The other two experiments dealt with the secondary knowledge of the phylogenetic categorization of plants (Study IV) and animals (Study V). These studies have shown that secondary knowledge needs to be taught
Chaabani, Emna. „Eco-extraction et valorisation des métabolites primaires et secondaires des différentes parties de Pistacia lentiscus“. Thesis, Avignon, 2019. http://www.theses.fr/2019AVIG0714.
Der volle Inhalt der QuelleThe development of Green chemistry, the depletion of petroleum resources and the awareness of the risks associated to the use of petroleum solvents have led to search a new alternatives to reduce the use of non-renewable petrochemical harmful solvents such as hexane. The objective of this thesis has consisted in the research of alternative solvents more respectful of health and environment for the eco-extraction of fatty acids and phenolic compounds from Pistacia lentiscus fruits and aromas from these leaves. A first in silico approach using the COSMO-RS predictions was supplemented by an experimental approach paired with chemometrics analysis. This led to selection of four alternative solvents, MeTHF for oil extraction, EtOAc for aromas extraction, EtOH/H2O (70/30) for polyphenols and flavonoids extraction and EtOH/H2O (80/20) for anthocyanins extraction. Subsequently, the anti-inflammatory activity of MeTHF lipid extract and the antioxidant activity of aromatic and phenolic extracts of P. lentiscus were evaluated in vitro. Results showed that vegetable oil exhibited a potential anti-inflammatory activity, inhibiting by 91.9% the release of (nitric oxide) NO in RAW 264.7 macrophages. In addition, results highlighted the richness of the fruits in antioxidants. In fact, EtOH/H2O (80/20) extract showed a good antiradical activity (IC50 = 2.39 μg/ml) comparable to that of the synthetic antioxidant Trolox (IC50 = 2.56 μg / ml). In addition, the aromatic extract obtained with EtOAc showed an interesting anti-radical activity against DPPH (IC50 = 5.82 μg/ml)
Abdelouahab, Hadjer. „Etude des mécanismes impliqués dans l'hématopoièse extra-médullaire dans les myélofibroses primaires et secondaires“. Paris 7, 2014. http://www.theses.fr/2014PA077212.
Der volle Inhalt der QuellePrimary and secondary myelofibrosis (MF) are rare and complex myeloproliferative neoplasms (MPN). They are characterized by medullary fibrosis and constitutive mobilization of stem cells and hematopoietic progenitors (HSPC), associated with extramedullary hematopoiesis in the liver and spleen. MF are also characterized by a complex mutational profile with JAK2V617F and MPLW515 being the main mutations in signaling molecules, leading to constitutive activation of signaling pathways. During this work, we have studied the role of CXCL12/CXCR4 in the constitutive HSPC mobilization and in the progression of the EMH in MF. Our results have shown that CD34+ MF patient cells are characterized by a strong chemotactic response to CXCL12 in vitro. This strong migration did not correlate with a high CXCR4 membrane expression, but seems correlated with activation of signaling pathways. Our results further demonstrated that the signaling pathways of CXCL12/CXCR4 and cytokines/cytokine receptors were synergistic in the chemotactic responses of cells to CXCL12. Furthermore, treatment MF patients with JAK2 inhibitors mobilizes CD34+ cells in peripheral blood. Finally, CXCR4 inhibition reduced the migration of MF CD34 cells in response to CXCL12 and induced a decrease in EMH in two mouse models of MF. Altogether, these resulb suggest that the constitutive HSPC mobilization and EMH in MF depend on CXCL12/CXCR4 signaling
Palacin-Saubadu, Chantal. „Photosensibilisation medicamenteuse : étude photochimique et spectroscopique (photo-cidnp) des processus primaires lors de photoréactions de sulfamides“. Lille 1, 1990. http://www.theses.fr/1990LIL10014.
Der volle Inhalt der QuelleEibner, Simon. „Pyrolyse flash de biomasse lignocellulosique : comment catalyser la désoxygénation au cours des mécanismes primaires et secondaires ?“ Thesis, Montpellier, Ecole nationale supérieure de chimie, 2015. http://www.theses.fr/2015ENCM0026.
Der volle Inhalt der QuelleFlash pyrolysis of biomass is seen as a new way to produce bio-oils which can be converted to biofuels and chemicals. However, development of such pyrolysis processes requires implementation of an efficient and innovative catalytic strategy to deoxygenate bio-oils. Pyrolysis mechanisms involve both biomass degradation reactions - primary mechanisms - and gas phase reactions - secondary mechanisms -. As a consequence, our work has been directed along two research lines. First, we tested whether impregnating a catalyst precursor in the biomass can act on the primary pyrolysis mechanisms in order to promote deoxygenation. Then we sought to enhance the catalytic cracking of pyrolysis vapours using a heterogeneous catalyst.Pyrolysis experiments of impregnated biomass show that metal nitrate salts - Mn, Fe, Co, Ni, Cu, Zn and Ce – mainly enhance cellulose depolymerisation at the expense of its fragmentation. Moreover, nitrate anions inserted in biomass promote the production of dehydrated anhydrosugars which can be used to synthesize value-added molecules. Pyrolysis of impregnated biomass also results in the formation of a catalytically active charcoal containing metal nanoparticles. Those charcoals were successfully employed to catalyse the deoxygenation of model vapour phase compounds. However, it was found that the catalytic activity of these charcoals was limited by their low specific surface area, in comparison with the measured performance measured for commercially available activated charcoal containing metal nanoparticles. Among the tested metals, the ceria-based catalyst was found both to efficiently reduce bio-oil acidity and to enhance phenol yields. Additionally, this catalytic cracking catalyst reduces the oxygen content in the pyrolysis bio-oil and increases its heating value. This encouraging result suggests that catalytic vapour cracking could be integrated in a hydrodeoxygenation-based process to produce biofuels. This option should reduce the cost of hydrodeoxygenation and in particular the hydrogen consumption
Hadchiti, Roula, und Roula Hadchiti. „Élaboration d’un questionnaire sur le mentorat reçu par les directeurs d’établissements scolaires primaires et secondaires au Québec“. Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/25865.
Der volle Inhalt der QuelleSachant l’importance du mentorat dans le domaine entrepreneurial et ses retombées sur l’entrepreneur novice, il est primordial de comprendre en quoi consiste cette forme d’accompagnement dans le domaine de la gestion scolaire. Le mentorat est défini comme un moyen de consolidation de l’identité professionnelle du mentoré et de son intégration dans le milieu du travail (Guay, 2002). Plusieurs programmes ont été conçus pour soutenir les directeurs d’établissements scolaires, y compris ceux portant sur le mentorat (Hansford & Ehrich, 2006). Cependant, à la connaissance des auteurs, aucun questionnaire ne permet à ce jour de mesurer les formes de mentorat recensées dans la littérature (coaching, supervision, tutorat, counseling, encadrement professionnel) auprès des directeurs d’établissements scolaires. L’objectif de cette recherche consiste à élaborer un questionnaire portant sur le mentorat reçu par les directeurs des établissements scolaires primaires et secondaires au Québec en se basant sur les sept étapes proposées par Dussault, Valois et Frenette (2007). Suite à une revue de littérature, des analyses d’items et des analyses factorielles confirmatoires (au prétest et auprès de la population cible), une version finale du questionnaire de 31 énoncés a été élaborée représentant un facteur de deuxième ordre (mentorat) expliquant les cinq formes de mentorat : coaching, supervision, tutorat, counseling, encadrement professionnel. Chacune de ces formes présente un bon niveau de consistance interne. Le questionnaire permet d’évaluer les pratiques actuelles du mentorat reçus par les directeurs d’établissements scolaires primaires et secondaires au Québec.
Castagnié, Jean-Paul. „Tétralogie de Fallot : étude rétrospective de 96 corrections primaires et de 32 corrections secondaires après anastomose de Blalock-Taussig“. Bordeaux 2, 1995. http://www.theses.fr/1995BOR2M063.
Der volle Inhalt der QuelleRoyer, Mathilde. „Étude des relations entre croissance, concentrations en métabolites primaires et secondaires et disponibilité en ressources chez la tomate avec ou sans bioagresseurs“. Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0058/document.
Der volle Inhalt der QuelleNowadays, limiting the use of pesticides is mandatory. A promising way for research deals with the environmental determinism of plant defence mechanisms, among others, production of secondary metabolites. The aim of my PhD work was to study the trade-off between growth and defence (primary vs. secondary metabolism) in healthy plant tissues or attacked by different pests, under different conditions of resources availabilities. We measured different growth parameters, C:N ratios of tissue, concentrations of main primary metabolites (simple carbohydrates, starch) and defence metabolites (chlorogenic acid, rutin, kaempferol-rutinoside and tomatine) on healthy or attacked tomato plant grown in hydroponic culture in greenhouse or phytotron. We observed that variations of total and resources C:N ratios were positively correlated to that of several defence compounds whatever their composition in carbon and nitrogen. Moreover, we showed that, during pests attack, concentrations of primary and secondary metabolites did not follow the same evolution, depending on their nature. Caffeoyl putrescine synthesis was strongly induced by P. syringae inoculation whereas chlorogenic acid concentration decreased. Inoculation of P. syringae induced a strong decrease of concentration of glucose and fructose whereas inoculation of P. corrugata enhanced their synthesis. We observed that a low N availability alters the development of P. syringae, P. corrugata and Tuta absoluta but promotes the development of B. cinerea. Our results showed that C:N ratio is a reliable indicator of the trade-off between growth and defence in the case of healthy plant. In attacked plant, the resources allocation between different metabolites varies with pests. And each pests reacts specifically to changes of N availability for the plant. Control of culture conditions appears to be a relevant agronomic tool to monitor the control of pests even if it is difficult to apply general rules to the interaction plant/environment/pests
Bücher zum Thema "Polluants primaires et secondaires"
Clairelise Bonnet, Madeline Demaurex, José Ticon. MOTS EN SCÈNE - Cinq expériences didactiques en classes primaires et secondaires. Paris: Editions L'Harmattan, 2012.
Den vollen Inhalt der Quelle findenGosselin, Lynda. Inventaire des pratiques favorisant la réussite scolaire dans les écoles primaires et secondaires du Québec. Sainte-Foy, Québec: Centre de recherche et d'intervention sur la réussite scolaire, 1992.
Den vollen Inhalt der Quelle findenKarondwa, Trudo-Gabriel Kabuyaya. Profil des types de personnalité et des enseignants dans les écoles primaires et secondaires du territoiredu Lubero (Nord-Kivu) / RDC. Kampala, Ouganda: Éditions Blessing, 2021.
Den vollen Inhalt der Quelle findenpublique, Communauté de travail des bibliothèques suisses de lecture. Normes pour bibliothèques scolaires: Bibliothèques, médiathèques, centres d'information pour les écoles primaires, secondaires et professionnelles : principes, données techniques et exemples pratiques. 2. Aufl. Solothurn: Communauté de travail des bibliothèques suisses de lecture publique, 2000.
Den vollen Inhalt der Quelle findenMarie-Dominique, Nenna, Hrsg. La route du verre: Ateliers primaires et secondaires du second millénaire av. J.-C. au Moyen Âge. Lyon: Maison de l'Orient méditerranéen-Jean Pouilloux, 2000.
Den vollen Inhalt der Quelle findenautres, Nenna Marie-Dominique, Hrsg. La route du verre: Ateliers primaires et secondaires du second millénaire av. J.-C. au Moyen Age. Lyon: Maison de l'Orient méditerranéen, 2000.
Den vollen Inhalt der Quelle findenOccupation de l'espace et gestion des ressources à l'interface entre massifs primaires et bassins secondaires et tertiaires au Néolithique: L'exemple du Massif armoricain et de ses marges. Oxford: Archaeopress, 2012.
Den vollen Inhalt der Quelle findenMonard, Albert. Le petit botaniste romand: Premiers exercices practiques de botanique : à l'usage des élèves des écoles primaires et secondaires de Suisse romande. Neuchâtel: Département de l'Instruction publique du Canton de Neuchâtel, 1989.
Den vollen Inhalt der Quelle findenMa, Xin. Évaluation nationale de l'effet des expériences scolaires sur les résultats et les comportements liés à la santé chez les jeunes: Rapport technique. [Ottawa]: Santé Canada, 2002.
Den vollen Inhalt der Quelle finden1963-, Ma Xin, Zhang Yanhong und Canada Health Canada, Hrsg. A national assessment of effects of school experiences on health outcomes and behaviours of children: Technical report. [Ottawa]: Health Canada, 2002.
Den vollen Inhalt der Quelle findenBuchteile zum Thema "Polluants primaires et secondaires"
Stabile, Giorgio. „Qualités primaires et qualités secondaires chez Galilée“. In Philosophies de la nature, 125–34. Éditions de la Sorbonne, 2000. http://dx.doi.org/10.4000/books.psorbonne.15207.
Der volle Inhalt der QuelleCATHELINEAU, Michel. „Ressources primaires et secondaires pour les transitions énergétiques et digitales“. In Le recyclage, enjeu pour l’économie circulaire, 25–51. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9162.ch2.
Der volle Inhalt der QuelleOUELLET, FERNAND. „AU QUÉBEC, LES ÉCOLES PRIMAIRES ET SECONDAIRES « DÉCONFESSIONNALISÉES » SONT-ELLES LAÏQUES ?“ In La diversité ethnoculturelle en éducation, 181–236. Presses de l'Université du Québec, 2010. http://dx.doi.org/10.2307/j.ctv18pgndj.13.
Der volle Inhalt der QuelleHart, Herbert Lionel Adolphus. „V. Le droit conçu comme l'union de règles primaires et secondaires“. In Le concept de droit, 99–118. Presses de l’Université Saint-Louis, 2005. http://dx.doi.org/10.4000/books.pusl.25023.
Der volle Inhalt der QuelleCHAGNES, Alexandre. „Recyclage des matériaux de la transition énergétique par voie hydrométallurgique“. In Le recyclage, enjeu pour l’économie circulaire, 69–93. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9162.ch4.
Der volle Inhalt der QuelleGolse, Bernard. „Le rêve“. In Le rêve, 101–19. In Press, 2023. http://dx.doi.org/10.3917/pres.misso.2023.01.0102.
Der volle Inhalt der QuellePADAMA, Panya. „L’enseignement-apprentissage dans les écoles primaires et secondaires du Cameroun septentrional à l’ère de la COVID-19“. In Les écoles africaines à l’ère du COVID-19, 259–74. Editions des archives contemporaines, 2024. http://dx.doi.org/10.17184/eac.7933.
Der volle Inhalt der QuelleCriblez, Lucien, und Adrien Rihs. „Contextes institutionnels et contenus disciplinaires de la formation des enseignants primaires versus secondaires. De l'École normale à l'Université“. In Savoirs en (trans)formation, 59. De Boeck Supérieur, 2009. http://dx.doi.org/10.3917/dbu.hofst.2009.01.0059.
Der volle Inhalt der QuelleBerichte der Organisationen zum Thema "Polluants primaires et secondaires"
Taherizadeh, Amir, und Cathrine Beaudry. Vers une meilleure compréhension de la transformation numérique optimisée par l’IA et de ses implications pour les PME manufacturières au Canada - Une recherche qualitative exploratoire. CIRANO, Juni 2021. http://dx.doi.org/10.54932/jdxb2231.
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