Dissertations / Theses on the topic 'Miel – Analyse'
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Antinelli, Jean-François. "Caractérisation de l'origine florale des miels : approches physico-chimique et aromatique." Nice, 2002. http://www.theses.fr/2002NICE5714.
Full textPouget, Fabien. ""Système distribué de capteurs pots de miel: discrimination et analyse corrélative des processus d'attaques"." Phd thesis, Télécom ParisTech, 2006. http://pastel.archives-ouvertes.fr/pastel-00001751.
Full textPouget, Fabien. "Système distribué de capteurs "pots de miel" : discrimination et analyse corrélative des processus d'attaques /." Paris : École nationale supérieure des télécommunications, 2006. http://catalogue.bnf.fr/ark:/12148/cb40977546v.
Full textMegherbi, Mehdi. "Extraction et analyse de traces d'oligo- et polysaccharides - : application au contrôle qualité des miels." Lyon 1, 2006. http://www.theses.fr/2006LYO10285.
Full textThe fight against the fraud in the agro-alimentary field is a permanent problem to warrant quality products to the consumers. The limited production and the high price of honey provoke falsification practices which are difficult to detect on its origin (appellation) and its composition (by the deliberated addition of cheap sugar syrup). The analysis of sugars, major : In order to improve the current methods for the authentification and the quality control of honeys, the search of new probes was undertaken by solid phase extraction and chromatography of oligo- and polysaccharides. In spite of the great variability of the compositions in these natural products, chromatographic fingerprints allowed to discriminate some varieties of honey and to detect adulterations from an addition of 1 % of sugar syrup. This approach leads new solutions and perspectives to certify a variety of honey and to fight against the falsification techniques which exist on the market
Cotte, Jean-François. "Développement de méthodes analytiques et de banques de données appliquées au contrôle de la naturalité des miels monofloraux." Lyon 1, 2003. http://www.theses.fr/2003LYO10033.
Full textBlachon, Grégory. "Détection et quantification du chloramphénicol dans le miel par thermodésorption laser à la pression atmosphérique couplée à la spectrométrie de masse tandem (LDTD-APCI-MS/MS)." Master's thesis, Université Laval, 2011. http://hdl.handle.net/20.500.11794/22637.
Full textYang, Yin. "Qualification des miels de Corse par une approche multifactorielle : diversité pollinique & variabilité chimique." Thesis, Corte, 2014. http://www.theses.fr/2014CORT0009/document.
Full textThis thesis was focused on the Corsican honeys under the AOC and AOP appellation “Miel de Corse-Mele di Corsica”. The Corsican honey was classified in six varietal categories: “spring”, “spring maquis”, “honeydew”, “summer maquis”, “chestnut grove” and “automne maquis”. The aim of this work was to characterize the volatile composition of Corsica honey and to develop an interdisciplinary approach to complete the characterization of Corsican honey and the qualification of the botanical and/or geographical origin. In the first part, 195 nectar honeys were characterized by melissopalynological, physico-chemical and volatile analyses. Pollen analysis allowed the certification of Corsican origin and highlights the main nectariferous species and/or characteristic plant associations of each varietal range. Thus, the volatile analysis by SPME, GC and GC/MS allowed the identification of some chemical markers of honey, namely 2-aminoacetophenone (“chestnut grove”); p-anisaldehyde and 4-n-propylanisole (“spring maquis”); isophorone and 3,4,5-trimethylphenol (“automne maquis”); isomers of lilac aldehydes and p-menth-1-en-9-al (“spring clementine”).For each honey range, an interdisciplinary study was carried out by using statistical analysis of multifactorial data (melissopalynological, physico-chemical and volatile data). These results allowed us to identify the “monofloral” honey samples; to propose some hypotheses about the nectar and/or honeydew contribution in honeys with dominant over-represented (“chestnut grove”) and normal taxon (“spring maquis”); and to determine the role of different nectariferous and/or polleniferous species in honeys with underrepresented taxon (“spring” and “autumn maquis”) and those with complex botanical origin (“summer maquis”).In the second part of our work, the volatile fraction of 74 Corsican honeydews and blend honeys has also been investigated. Statistical analysis of the volatile composition has distinguished Metcalfa honeydew by a high abundance of 3-furaldehyde. Otherwise, the other honey samples were characterized by a high abundance of 2-aminoacetopheneone (marker of “chestnut grove” honey) and/or p-anisaldehyde and 4-n-propylanisol (characteristic compounds of “spring maquis" honey). These observations could be explained by the nectar contribution of Castanea sativa and/or Erica arborea in the honeydew samples. Finally, this work has allowed us to develop an innovative approach based on multifactorial approach (pollen analysis, physic-chemical parameters, volatile composition) to obtain discriminant information for the determination of the floral origin from Corsican honeys
U Mele di Corsica hè un pruduttu sputicu di l’isula. E prime vistighe di l’apicultura inCorsica si ritrovanu in l’Antichità più anziana ma l’arte di a bugna è di u mele vene tralasciatadopu a Sigonda guerra mundiale. Cù a mossa idintitaria di l’anni sittanta (XXu seculu),s’urganizeghjanu i prufiziunali ed ottenenu una Appillazione d’Origine Cuntrullata (AOC) inlu 1998 po una Appillazione d’Origine Prutetta (AOP) in lu 2000. Fatta fine chì a pruduzzioneoghjinca (300 à 350 tunnillate/annu), cummircializata cù a sugillata « Miel de Corse-Mele diCorsica » si spachja sigondu sei catigurie variitesche : « veranu », « machja viraninca », «milata di u machjetu », « machja d’istate », « castagnetu » è « machja auturnale ».In lu quatru di e norme naziunale (AOC) ed eurupee (AOP), u metudu cunvinziunaleda cirtificà l’origine geugrafica è butanica s’arremba à e caratteristiche pulliniche, fiscuchimicheè urganulettiche di i meli. U fine principale di sta tesi dutturale hè di caratterizà avariabbilità chimica di ste pruduzzione di modu à prupone criterii novi di qualifichera.U studiu di a frazzione vulatile di 269 campioni di meli (inclusuci e sei catigurievariitesche), hà permessu d’invinturià, pè a prima volta, a custituzione in cumposti vulatili di imeli di Corsica. I nostri travagli sò sbuccati dinò nantu à l’idintificazione di i marcadorichimichi in leia diretta cù e spicificità di i rughjoni di pruduzzione. Per quessa, un accostuinterdisciplinariu – appaghjendusi i dati di i metudi cunvinziunali cun quelli di a tippulugiavulatile- hè statu prupostu da pudè diterminà l’origine fiurale.Cusì sò stati idintificati i marcadori chimichi di parechje variità di mele, vene à dì u 2-aminoacetofenune (« castagnetu ») ; u p-anisaldeide è u 4-n-prupilanisole (« machja viraninca») ; l’isoforunu è u 3,4,5- trimetilfenule (« machja auturnale ») ; l’isomeri di lilace aldeide è diu p-menten-9-al (« veranu tippu clementinu »).Sta prima caratterizazione multifatturiale di i meli di Corsica hè propiu d’opu pèl’apicultori in lu quatru di l’evuluzione spaziu-tempurale di e pruduzzione isulane in funzionedi e cundizione di u mezu (variazione bioclimatiche, mudifica di u prucessu di e milate, rigiruapaghju)
Lapointe, Gagnon Valérie. "De fiel et de miel : les représentations de la stratégie de gestion de la crise post-référendaire présentes dans la presse canadienne, 1995-1999." Master's thesis, Université Laval, 2008. http://hdl.handle.net/20.500.11794/20433.
Full textL'objet d'étude que constituent les représentations sociales est de plus en plus utilisé en histoire afin d'étudier des phénomènes, des tendances ou des événements. Dans ce mémoire, les représentations sociales sont employées afin d'appréhender les suites du référendum québécois sur la souveraineté de 1995, un moment clé du conflit de basse intensité opposant le Célnada anglophone et le Québec francophone. Récoltant un taux de participation exceptionnel et un résultat extrêmement serré, le référendum du 30 octobre 1995 confronta les responsables fédéraux à une crise qu'ils se devaient de résorber afin de maintenir l'unité nationale, malmenée dans la tourmente référendaire. Le présent mémoire s'attache donc plus précisément à l'étude des représentations de la stratégie déployée par l'État fédéral afin de gérer la crise post-référendaire. Analysant les représentations présentes dans la presse canadienne, il met notamment en lumière le phénomène de ± mémoires inversées ¿ qui amène les Anglo-canadiens et les Francoquébécois à partager une conception différente des événements qui jalonnent leur trajectoire historique. Il souligne également la place occupée par la rhétorique de la réconciliation nationale dans les initiatives mises en place par le gouvernement de Jean Chrétien, une place qui s'avère bien discrète.
El, Hawari Khaled. "Occurrence des résidus et contaminants chimiques dans les miels produits et consommés au Liban : développement et standardisation de méthodes de dépistage adaptées : application aux résidus d'antibiotiques." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1B054/document.
Full textA new, simple and rapid method has been developed for the determination of multiclass antimicrobial residues in honey (sulfonamides, tetracyclines, macrolides, lincosamides and aminoglycosides). All the compounds were extracted from honey within single extraction method and analyzed by liquid chromatography - tandem mass spectrometry (LC-MS/MS) operating in positive electrospray ionization mode. In our study, we examined the behavior of volatile perfluorinated carboxylic acids (HFBA and PFPA) used as ion-pairing reagents for the separation of multiclass of antibiotic residues by reversed phase Zorbax SB C18 column. Furthermore, the extraction and clean-up steps were investigated and optimized by using ultrasonic-assisted extraction and dispersive solid phase extraction (d-SPE). Different parameters affecting the extraction efficiency including type of solvent, pH, breaking efficiencies of N-glycosidic linkage by hydrochloric acid, ultrasonic extraction and its duration compared to shaking technique, along with dispersive SPE clean-up were examined prior sample injection. The method was then validated according to European Commission Decision (EC) No 2002/657. Furthermore, the method was tested for its validity through participation in proficiency testing scheme organized by FAPAS for the analysis of tetracycline in honey. Afterwards, a transfer of the validated LC-MS/MS analytical method has been applied for the determination of antimicrobial residues in honey from low resolution to High Resolution Mass Spectrometry (HRMS). For that purpose, descriptive statistical approach was performed to assess the performance of the method based on simultaneous evaluation of the trueness and the intermediate precision. Finally, the method was applied for the determination of antimicrobial residues in honey collected from local markets at different regions in Lebanon. Positive samples were then analyzed by the LC-HRMS to confirm the presence of analytes detected by LC-MSMS
Antonioni, Valentina. "Analisi sensoriale del miele: aspetti operativi." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19274/.
Full textBouhajib, Mohammed. "Analyse des glycosides de Picea Mariana (Mill.) B.S.P." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1992. http://theses.uqac.ca.
Full textGillig, Philippe. "Mill et ses critiques : analyse d'une prétendue prétention à l'universalité de l'économie politique de John Stuart Mill." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAB006/document.
Full textJ. S. Mill was one of the main targets of a whole critical literature denouncing the pretention of economics to universality, that is to say, to establish natural laws. Among the criticisms one can detect two different angles of attack: that of authors such as Durkheim, Veblen or Schmoller who criticize the claim of political economy to reduce man to a mere homo œconomicus, and consequently to glorify “laissez-faire”; that of Marx who castigates the naturalizing character of capitalist private property in the economic discourse. However, by closely examining Mill’s epistemological texts, we show that this author just happens to be the advocate of his own critics. However, there is no guarantee that Mill says all the truth about his own practice as an economist. Now, we demonstrate that some of his economic writings present indeed a form of universality, in as much as they are not only valid in capitalist market economies
Parisi, Michael. "Sostenibilità ambientale del miele: analisi del ciclo di vita della produzione dell’Apicoltura Piana." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textMAZZONI, VANINA. "Analyse de melanges naturels par rmn du carbone-13 : extraits lipidiques, miels et huiles essentielles." Corte, 1998. http://www.theses.fr/1998CORT3036.
Full textAlfredsson, Axel, and Gustav Knutson. "Analys av driftstopp i ett hyvleri." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-61892.
Full textMoelven is an industrial group that produces building materials and systems for the construction industry; with its 52 productions units in Norway, Sweden and Denmark, it is one of the biggest in Scandinavia. This study has been carried out in the planing mill at Moelven Valåsen Wood AB in Karlskoga. Because of the low utilization rate in the planing mill (65%), it constitutes a bottleneck, meaning it limits the capacity and flow of material, for most of the products. The purpose of the study was to analyze the stoppage in the planing mill in order to make recommendations on how the utilization rate can be increased. The study began with a wide perspective to identify the reasons behind this problem. A summary of all stops in the planing mill concluded that set ups of the planer made up for 30% of total stoppage. Because of this, the study was narrowed down to mainly analyze the different types of set ups, which was done through extensive observations and videotaping. The solutions and recommendations that were given are therefore almost entirely regarding set up-time reduction, and more specifically, milling set ups. The recommendations, based on the results of the study, includes: • Suggestions on how to separate internal and external set up. • Better order of tools through designing a check table. • Standardizing the procedure by creating a routine and dividing the operators into different work roles. • Involving everyone in the organization in order to work with continuous improvement. A simulation of milling set ups was done by implementing parts of the recommendations – this resulted in a setup up-time reduction of 13 minutes, which corresponds to 32.5%. Because of common denominators, such as movements, the recommendations given are likely generalizable for all set ups.
Holm, Rasmus, and Caroline Erlandsson. "ANALYS AV KOSTNADER FÖR LAST MILE DISTRIBUTION : MÖJLIGHETER MED KONSOLIDERING OCH DESS SYNERGIEFFEKTER." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10687.
Full textBendini, Giulia. "Comparazione analitica tra miele di acacia e miele di arancio nell'ambito della produzione italiana." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Find full textMancini, Alberto. "De Hiel y de Miel di Patxi Zubizarreta. Proposta di traduzione dallo spagnolo all'italiano." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7796/.
Full textSimões, Mauro Cardoso 1973. "Liberdade e paternalismo segundo John Stuart Mill : uma analise das teses de On Liberty." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/280419.
Full textTese (doutorado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciencias Humanas
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Resumo: John Stuart Mill é considerado neste trabalho um dos representantes mais significativos do utilitarismo. Suas idéias são tomadas como as mais inspiradoras e aquelas que contribuíram decisivamente para a construção de um utilitarismo matizado, qualificado e mesmo inovador. Mill, ao contrário do que alegam seus detratores, possuía, desde sua crise mental, uma capacidade extraordinária para abrigar as mais diversas tendências filosóficas de seu tempo, o que motivou grande parte das críticas que lhe foram dirigidas. Duas destas críticas a que se reporta neste trabalho é aquela empreendida por Henry John McCloskey e Gertrud Himmelfarb, sendo que esta entende ser Mill um porta-voz das idéias de seu pai, James Mill e de sua esposa Harriet Taylor, e que por ter abrigado idéias tão díspares em seu pensamento, teria acabado por se tornar ambíguo e defensor de teses contraditórias. Mais do que refutar tal interpretação analisa-se, aqui, as perspectivas que mobilizaram Mill, particularmente nas duas obras que circunscrevemos como exigência para o tratamento das reflexões do filósofo britânico: On Liberty e Utilitarianism. Considera-se, aqui, que Mill possui uma coerência nos temas a que se refere constantemente, quais sejam, a preocupação com o ideário utilitarista e com sua defesa da liberdade civil e dos direitos entendidos como prima facie. Esta tese analisa, ainda, as principais contribuições dadas por Mill e defendidas em On Liberty. Tal defesa ressalta a preocupação com as noções de autonomia, auto-desenvolvimento e liberdade positiva, posicionando-se por uma leitura de Mill como um pensador que rechaça o paternalismo e declara sua mais controversa e ao mesmo tempo frágil intenção, a fundamentação do liberalismo sobre bases utilitaristas
Abstract: John Stuart Mill is considered in this work one of the most significant representatives of the utilitarianism. His ideas are taken as the most inspiring and those that had definitely contributed for the construction of a complex, qualified and even innovative utilitarianism. Mill, in contrast with what his detractors allege, possessed, since his mental crisis, an extraordinary capacity to shelter the most diverse philosophical trends of his time, what has motivated most of the critics against him. Two of the critics that he reports to in this work is the undertaken by Henry John McCloskey and Gertrud Himmelfarb, which seems to show Mill as the spokesman of the ideas of his father, James Mill, and of his wife Harriet Taylor, and for establishing such different ideas in his thought, he would end up becoming ambiguous and a defender of contradictory theses. More than refuting such interpretation it can be analyzed, here, the perspectives that had mobilized Mill, particularly in the two works that we circumscribe as requirement for treating the reflections of the British philosopher: On Liberty and Utilitarianism. It is considered, here, that Mill possesses a harmony in the subjects he constantly refers as, whatever they are, the concern with the utilitarian idealism and with his defense of the civil freedom and of the known as prima facie. This thesis analyzes, still, the main contributions provided by Mill and defended in On Liberty. Such defense enhances the concern with the notions of autonomy, self-development and positive liberty, locating itself for a reading of Mill as of a thinker who rejects paternalism and declares its most controversial and at the same time fragile intention, the establishment of liberalism over utilitarian basis
Doutorado
Filosofia Politica
Doutor em Filosofia
Traversa, Edoardo. "Fotocollage di Mies van der Rohe: storia, analisi critica, applicazione compositiva, progetto." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15343/.
Full textBaum, Katja. "Analyse der cis-regulatorischen Bereiche und der trans-Faktoren des RBCS2-Promotors aus Tomate (Lycopersicon esculentum Mill.)." [S.l. : s.n.], 1998. http://www.sub.uni-hamburg.de/disse/32/inhalt.html.
Full textKalyagina, Nina. "Diffuse Reflectance Endoscopic Imaging for Bladder Early-Stage Cancer and Pre-Cancer Diagnosis : Instrumentation, Modelling and Experimental Validation." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0099/document.
Full textThe present thesis aimed to evaluate the performance of non-invasive optical method for bladder pre- and early- cancer detection by means of diffuse-reflected laser light analysis. The analysis of light distribution at the surface of multi-layered bladder phantoms with different scattering and absorption properties showed that the changes in the optical properties lead to increase or decrease of the diffuse-reflected light spot area, detectable by a video camera. It was also determined, that the presented method is capable of detection of the photosensitizer accumulation, and can be applied for both (diffuse-reflected laser and fluorescence) studies simultaneously. The calculations for spherical and ?coated?-spherical tissue scatterers, based on the electromagnetic wave theory, allowed for obtaining optical parameters of three-layered biological phantoms and of bladder tissues at different states. These parameters served as inputs for Monte Carlo simulations, which provided us with matrices of diffuse-reflected light distributions. The study showed that the measurements of non-polarized back-scattered laser light can provide useful information on the tissue state
Faugeron, Céline. "Mise en évidence et transport de N-glycannes non conjugués dans le plant de tomate (Lycopersicon esculentum, Mill. )." Limoges, 1998. http://www.theses.fr/1998LIMO0012.
Full textLarsson, Mikael. "Process integration in the steel industry : possibilities to analyse energy use and environmental impacts for an integrated steel mill." Doctoral thesis, Luleå, 2004. http://epubl.luth.se/1402-1544/2004/63.
Full textTurcotte, Audrey. "Analyse intra-annuelle des fluctuations radiales des tiges et des racines adventives de l'épinette noire (Picea mariana (Mill. B.S.P.) /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2007. http://theses.uqac.ca.
Full textLa p. de t. porte en outre: Mémoire présenté à l'Université du Québec à Chicoutimi comme exigence partielle de la maîtrise en ressources renouvelables. CaQCU Bibliogr.: f. [77]-82. Document électronique également accessible en format PDF.
Brancaz, Maud-Virginie. "Analyse cellulaire et moléculaire de la mutation "bald Mill Hill" (hr rhbmh) au cours du développement chez la souris." Université Joseph Fourier (Grenoble), 2004. http://www.theses.fr/2004GRE10097.
Full textIt is well documented that the mammalian hairless gene plays a critical role in the maintenance of hair growth. The hairless mutant ph enotype is characterised by a progressive and definitive hair loss. Although the hr gene has been known for many years, the biochemical function of the encoded Hairless (Hr) remains unclear. Hr encodes a putative zinc finger protein of approximately 127 kDa acting as a corepressor of nuclear hormone receptors. It interacts with histone deacetylases (HDACs) and is localized in the nuclear Matrix-Associated Deacetylase (MAD) bodies. Allelic mutations in the murine hairless gene, which arose spontaneoulsy in a colony at the National Institute for Medical research (NIMR), Mill Hill, London in early 1998. The gene symbol hr rhbmh mice revealed a substantial deletion at the 3'-end of the gen. Our results indicate that the transcription of the gene is surprisingly unaffected by the deletion. Instead it results in ablation of the determination codon leading to a new protein. This protein encompasses a 117 amino acids extension at its C-terminal part and presents an abnormal cellular localization. In an attempt to identify partners and targets of the hairless gene, we have analysed a series of markers of hair follicle and epidermal development in these mutant mice
Issaka, Salia Ousseini. "Étude de l’adaptation du mil à la variation climatique : analyse phénotypique, d’association génotype / phénotype et de sélection." Thesis, Montpellier, 2016. http://www.theses.fr/2016MONTT137.
Full textIn sub-Saharan Africa, a large fraction of the population practice rainfed agriculture. Rainfed agriculture is particularly sensitive to climate variability. Pearl millet (Pennisetum glaucum L R) is one of the main cereals that play an important role in food security in sub-Saharan Africa. Wild pearl millet populations grow also in more extreme climate conditions up to the limit of the desert. The aim of this PhD was to study pearl millet adaptation to climate variation. Using an association genotype / phenotype approach, we demonstrated that the myosin 11 gene is associated with flower number variation in wild millet along an environmental gradient. Interestingly, this gene was also a candidate gene target of selection during domestication. The Myosin XI gene is thus a good candidate for fitness related adaptation in wild populations. We also demonstrated that Photochrome C gene, already known for its role in cultivated pearl millet, is also related to flowering time variation in wild pearl millet. We have demonstrated the existence of cryptic functional polymorphisms associated with flowering time. Such cryptic functional polymorphism might contribute to adaptation in specific new environment. In cultivated pearl millet, we also show in situ selection on two flowering genes. Our results suggest that the functional polymorphisms are observed in these populations, some genes are also associated with both adaptations in wild and cultivated populations. In response to environmental changes, such polymorphism could be used to propose better adapted cultivated varieties
Adams, Zanele. "Comparative phytochemical analyses of Aloe Ferox Mill. found in Eastern and Western Cape provinces in South Africa." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1013114.
Full textBaselt, Tobias, Clemens Richter, Florian Rudek, Bryan Nelsen, Andrés Fabián Lasagni, and Peter Hartmann. "Detection of structural changes based on Mie-scattering analyses of mouse fibroblast L929 cells before and after necrosis." SPIE, 2018. https://tud.qucosa.de/id/qucosa%3A35175.
Full textFolco, Eric. "Analyse de la régulation du gène hairless et identification des voies de signalisation affectées chez les mutants « Bald Mill Hill »." Grenoble 1, 2008. http://www.theses.fr/2008GRE10013.
Full textLn Mammals, the gene hairless (Hr) encodes a nuclear factor strongly expressed in skin and crucial in controlling hair follicle integrity and cycling. Ln the absence of a normal and functional Hairless protein, the hai bulb undergoes premature apoptosis linked to complete and irreversible loss of hair follicles. The hairless phenotype is caused by defective proliferation and migration of the hair follicle stem cells, apparently unable t, respond to various signalling molecules. The HR protein is localised in cell nuclei, tightly bound to nuclear matrix and functions as a corepressor for nuclear hormone receptors by its association to chromatin remodelling factors. At least in the skin, but probably in other organs, the HR repressor seems to be responsible for the timing of epithelial cells differentiation and tegument stem cells identity. The spatial and temporal Hr gene regulation is still poorly understood and the partners of HR protein await to be identified. Th, main objectives of the thesis were therefore to shed more light on the molecular basis underlying Hr gene function as weil as on the HR protein implication in signalling pathways responsible for skin and hair follicle homeostasis. The first part of this thesis is thus focused on the fine mapping of cis-elements governing Hr gene basal promoter function and regulation. The precise transcriptional initiation start site of the mouse Hr gene was determined and a new 1,1 kb cis-control element (RE1) able to drive reporter expression in skin an brain derived celllines was identified. A deletion analysis and functional exploration have shown that the role of this upstream region is linked to the presence of TR and VDR binding sites. Ln addition, a novel cis¬ reaulatorv motif UE60, likelv to interact with both TRE and VDRE was defined. Taken together these findings reveal a complex molecular network that potentially links several signalling pathways in hair follicle formation and stress the importance of the organisation of the regulatory modules at the Hr locus in Mammals. A substantial part of the thesis work is dedicated to unravelling the signalling pathways where the Hr gene and the HR protein play a crucial role to control the hair cycle itself. A recently described mouse mutation-hairless rhino bald Mill Hill, (H('1bmh), was used here as a model system to approach interactions with the vitamin 0 signalling. It was demonstrated that the mutant HR bmh protein, although abnormally localised in the cytoplasm, is able to interact with the vitamin 0 receptor, but is not able to repress VDR-mediated transactivation. Immunofluorescence analysis revealed that HRbmh protein displays an abnormal cellular localization in transfected ceillines, as weil as in the epidermis and hair follicle of bmh mutant mice. Finally, the patterns of HRbmh protein extra-nuclear localization were analysed in cell transfection experiments. It wa established that HR bmh co-Iocalizes specifically with the protein HDAC6, in the cytoplasm and is able to physically interact with il. The association of HR bmh with this Ub-binding protein as weil as its localisation in late endosomes and lysosomes suggest that endosomal processing and/or proteasome related pathways miaht be able to shaoe and modulate the soecific skin ohenotvoe of bmh mouse hairless mutants
Camorani, Marco. "Il PLA per applicazioni negli imballaggi per l'industria alimentare : analisi del packaging per il miele." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textMhaladi, Refilwe. "The therapeutic value of Aloe Ferox Mill." Thesis, Bloemfontein: Central University of Technology, Free State, 2014. http://hdl.handle.net/11462/672.
Full textThe rising costs of health care, the outbreak of drug resistant organisms, health depleting lifestyles and the risky side effects of currently used drugs are world-wide problems. This has led to the search for novel drugs and drug leads. Traditional healers and other individuals across the globe possess unlimited knowledge on the healing powers of different plants that has been passed on through generations. This knowledge together with scientific investigations can lead to the eradication of most of the diseases either by treatment or prevention. Aloe ferox Mill. is one of the plants that have gained a lot of interest from the pharmaceutical industry. The plant has over 80 documented medicinal uses. These include treatment of impotence and infertility, sexually transmitted infections, arthritis, hypertension, leukaemia, bacterial and fungal infections. It is also known as a blood purifier, widely used as a laxative and anti- inflammatory agent. More research is required to discover more about A. ferox and its benefits to health as well as to investigate its potential for the development of novel drugs. The current study was focused at investigating the anti- cancer, anti- microbial antidiabetic, cytotoxic activities and phytochemical composition of leaf extracts of A. ferox. Three cancer cell lines namely: breast (MCF7), colon (HCT116) and prostate (PC3) cancer cell lines were used to investigate the anticancer activity of the extracts using the Sulforhodamine B (SRB) method. To determine the anti- diabetic activity of the plant extracts the C2C12 and Chang cell in- vitro models of glucose uptake were used. The micro- dilution technique was IV used to evaluate the antibacterial and antifungal activity of the extract. The safety of these extracts against normal human foetal lung fibroblasts (W138), Chang and C2C12 cells was done by through the SRB and the MTT methods. To determine the phytochemical profile of A. ferox the DPPH radical scavenging and the Folin Ciocalteu methods were used to test the antioxidant activity and the total phenolic content of the different extracts respectively. Different methods were used to determine the presence of phytochemicals such as steroids, saponins, alkaloids, carbohydrates and flavonoids. LCMS was also done to detect the elemental composition of the plant extracts. According to the CSIR criteria A. ferox was inactive against the cancer cell lines used. It however exhibited antioxidant activity even at low concentrations, with an EC50 of 0.865 ± 0.783. The methanol extract showed more phenolic content than the dichloromethane and aqueous extracts at a concentration of 5mg/ml. It is believed that the antioxidant activity correlates with the phenolic content and quality of the phenols present in the plant and more assays have to be done to prove this hypothesis. Other phytochemicals found in the extract included saponins, steroids, alkaloids as well as flavonoids. Both the methanol and aqueous extracts of A. ferox caused a significant increase in glucose uptake by C2C12 cells but caused a slightly decreased uptake by the Chang cells. The plant extracts inhibited the growth of Staphylococcus epidermidis, Streptococcus pneumonia, Escherichia coli and Candida albicans at a concentration of 15mg/ml extract. Candida tropicalis and Escherichia faecalis were resistant to A. ferox extracts. Finally the extracts showed no toxic activity against the normal foetal lung fibroblasts, Chang and C2C12 cells validating the safety of this plant for human use. V The results in conjunction with literature findings show A. ferox to be a promising source of drugs and therapeutic agents. Due to the fact that traditional healers already rely on it as treatment for different ailments, it is important that the safety of the plant for use has been validated though other studies and clinical trial still need to be done to fully confirm this. All the information gathered also showed this plant to be of great benefit against major health problems, responsible for millions of deaths each year such as cancer, cardiovascular and inflammatory diseases, and diabetes. There is however still a great need for more investigation to be done on this plant against a vast majority of organisms and diseases so as to fully benefit from it.
Moulineau, Claire. "Le stress hydrique chez le mil (Pennisetum glaucum (L. ) R. Br. ) : caractérisation et recherche de marqueur moléculaire." Montpellier 2, 1994. http://www.theses.fr/1994MON20065.
Full textKumar, Saket. "Application of multivariate analysis techniques in understanding complex industrial processes : a pulp mill example /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/5585.
Full textFazlioglu, Fatih. "A Phenetics Study For Infrageneric Grouping Of Limonium Mill. Genus (plumbaginaceae) In Turkey." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613715/index.pdf.
Full textFlora of Turkey&rdquo
. Moreover, in UPGMA trees, a new section (belonging Section Limonium) is observed. Section nova species live only near seashore and distinctively separated from other Section Limonium species in phenograms and Principle Component Analysis (PCA). PCA was carried out to indicate most important characters used in this study. In addition, in this study, a dichotomous key comprising all the species of Limonium Mill. in Turkey was also presented. In appendix part, brief information about each species such as distribution, habitat, conservation status, habit, endemism ratio, flowering period, IUCN categories was given to review all Limonium Mill. species in Turkey.
Nicault, Antoine. "Analyse de l'influence du climat sur les variations inter et intraannuelles de la croissance radiale du pin d'Alep (Pinus halepensis Mill. ) en Provence calcaire." Aix-Marseille 3, 1999. http://www.theses.fr/1999AIX30042.
Full textHassan, Muhammad. "Production 4.0 of Ring Mill 4 Ovako AB." Thesis, Högskolan i Gävle, Elektronik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-33405.
Full textSaderi, Seyedehmasoumeh. "Dynamiques de la formation du bois du Mélèze (Larix decidua Mill.) le long d’un gradient altitudinal de 1000 m dans les Alpes du sud Françaises." Thesis, Paris, AgroParisTech, 2017. http://www.theses.fr/2017AGPT0015.
Full textThe survival of perennial plants depends on their ability to remain adapted to their ever-changing environment. Vegetation model predictions indicate that climate change will have profound effects on forest production and distribution. Tree response to environmental factors amply relies on cambium ability to produce efficient wood. The main objective of this thesis is to understand which modifications of the wood formation (WF) processes allow trees to grow under contrasted conditions. The xylogenesis of 60 larch trees, in four stands along an elevation gradient of 1000 m in the French Southern Alps was monitored in the 2013. Wood samples were taken every week from tree stem.. Forming wood cells counted according to their differentiation stage (dividing, enlarging, wall thickening and mature). Moreover, the occurrence of wounding tissues were recorded. Meteorological data were obtained from nearby climate stations andrelative extractable water was computed using a water balance model. Thecritical dates of wood formation were computed based on logistic regression, while wood growth dynamics was described using Gompertz models. Dates and rates were then compared along the elevation gradient using bootstrap tests and mixed-effects models. The relative contribution to the total annual production of rates vs. durations was assessed using a sensitivity analysis of a basic physical model. Cambial activity (CA) started around mid-May at the lowest stand and around mid-June at the highest one, which correspond to a delay of 3 days per 100 m. The onsets of the other periods of wood formation followed exactly the same elevation trend, but were lagged in time of a few days up to one or two months. The cessation of CA and WF followed a parabolic trend with trees from the lowest stand finishing first, followed by those from the highest stand, while those from the intermediate elevations finished the last. CA and WF durations also exhibited parabolic trends, but with the shortest season occurring at 2300 m and the longest ones at 1700 m Nevertheless, we discovered that the elevation-related shortening of the growing season, was compensated by an increase in the cell production rate, leading to comparable tree-ring widths in the three upper stands. The lowest stand, on the contrary, exhibited narrow tree rings due to both low production rates and short durations. The sensitivity analysis showed that the final cell number was more related to the rate of production than to its duration. Moreover, our results showed that the number of cambial cell increased with elevation, which compensated the lengthening of the cell cycle, and thus maintained high production rates, even at high elevation. Lastly, we didn't observe any callus tissue in our anatomical sections, but we counted numerous traumatic resin canals. Moreover, a careful examination of Gompertz fitting residuals leaded us to think that microcoring monitoring slightly stimulated cambial activity, disturbing xylogenesis and final tree-ring structure. We believe, however, that the overall impact of cambial stimulation on wood formation phenology and dynamics remains limited. So the delay in the wood formation CA and WF onsets with increasing elevation can be associated with the adiabatic temperature decrease and thus translated into a lengthening of the growing season of about 5 days per °C. On the other hand, our results show that the cessation of cambial activity is more related to photoperiod, even with water shortage being able to hasten growing season termination. However, even if phenology is a key component of forest functioning, our results underlined the pivotal role of the rate of cambial activity in tree growth. Structural investment to sustain cell division rates while elevation increase, thanks to increased number of cambial cells, and despite temperature-related increased of cell cycle length, unveil a strong adaptation mechanism of trees to high elevations
Sarr, Aboubakry. "Analyse génétique de l'organisation reproductive du mil (Pennisetum typhoïdes Stapf. et Hubb.) implications pour son amélioration et la gestion des ressources génétiques /." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37616712z.
Full textSarr, Aboubakry. "Analyse génétique de l'organisation reproductive du mil (Pennisetum typhoïdes Stapf et Hubb) : implications pour son amélioration et la gestion des ressources génétiques." Paris 11, 1987. http://www.theses.fr/1987PA112111.
Full textBalme-Debionne, Maud. "Analyse du régime pluviométrique sahélien dans une perspective hydrologique et agronomique : étude de l'impact de sa variabilité sur la culture du mil." Grenoble INPG, 2004. http://www.theses.fr/2004INPG0126.
Full textAssessing the influence of the climatic variability on water resources and agriculture is a crucial scientific issue, especially for the Sahel. The difficulty lies in the gap between the scales of the climatic model outputs and those of the hydrological and agronomical applications. The Sahelian rainfall regime and its variability are described here by using both the daily rainfall data registered in Niamey Airport (Niger) from 1950 to 2002 and a high space-time resolution data set in the area of Niamey, namely the AMMA-CATCH Niger observatory, from 1990 to 2002, stressing the event scale and the rain intensity scale, which are rarely well-documented. Next, the influence of the rainfall variability on millet yields is studied by using an agronomical model. It is shown that the rainfall fields are strongly marked by the rainfall variability at convective scale, even at yearly scale. Agricultural yields are very sensitive to this variability
Akaki, David Kofi. "Bouillies infantiles à base de mil fermenté à Ouagadougou : Vers une analyse des risques microbiologiques dans les micro-entreprises traditionnelles de production." Montpellier 2, 2006. http://www.theses.fr/2006MON20241.
Full textThe aims of this work were to improve the quality of traditional millet-based fermented gruels for young children consumed in Africa as complementary foods. These gruels must be free from pathogens likely to cause food infections. The evaluation of the bacteriological quality of the products resulting from 10 production units of Ouagadougou town in Burkina Faso, allowed us to isolate and identify 449 bacteria from the samples taken at different steps during gruel manufacture: before the fermentation of the dough, at the end of the fermentation, after cooking of the fermented dough and granule production. Microbial enumerations were carried out on Mac-Conkey, Baird Parker, Mannitol-Yolk-Polymyxin and Trypton Sulfite Cycloserin mediums. All the samples showed the presence in great numbers of various pathogens, because of the bad hygiene of the products and process. For the enterobacteria, the most frequent was Klebsiella pneumo. Ssp pneumonia. For the other Gram negative bacilli, it was Chryoseomonas luteola. For the staphylococci, it was Staphylococcus xylosus. For sporulating Gram positive bacteria, we are identified Bacillus cereus and Clostridium beijerinckii/butyricum. With regard to food infections, the following species were isolated and identified: Bacillus cereus (19 species), Enterobacter sakazakii (03), Klebsiella pneumo. Spp pneumonia (16), Escherichia coli (04) and Staphylococcus aureus (02). Globally, we observed a major reduction in population levels after fermentation, but the bacilli able to sporulate were maintained in the products after this important step of the process. Cooking involved a drastic reduction in the majority of pathogens except the bacilli able to sporulate. Challenge-tests carried out with Escherichia coli ATCC 25922, Enterobacter sakazakii CIP 103183T, Bacillus cereus ATCC 9139 from a collection or Escherichia coli AMC2-1, Enterobacter sakazakii AMC8-3 and Bacillus cereus BMYP7-3 isolated from the production units, allowed the evaluation of the risk of their development and that with different steps of the process. Lactic fermentation and especially cooking were effective at reducing the populations of enterobacteria tested. For Bacillus cereus, it does not constitute an effective barrier against the maintenance of the spores. This reveals that for the various pathogens used, control of the process of fermentation during the decantation of the dough, control of cooking through time/temperature, cross contaminations related on the quality of the utensils and general cleanliness have to be controlled to obtain a “healthy” gruel. The cross contamination of the cooked gruel remains a danger. The addition of nisin in the gruel is without effect on the enterobacteria tested, whereas this addition makes it possible to reduce effectively the populations of Bacillus cereus. This heat-resistant molecule could be added at the end of the fermentation step and before cooking to combine the two effects: thermal destruction by cooking and inhibition by nisin
Lassoued, Nejla. "Structure alvéolaire des produits céréaliers de cuisson en lien avec les propriétés rhéologiques et thermiques de la pâte : Effet de la composition." Phd thesis, ENSIA (AgroParisTech), 2005. http://pastel.archives-ouvertes.fr/pastel-00003695.
Full textGOUBLE, BARBARA, and Daniel Côme. "Etude de l'action du protoxyde d'azote sur la biosynthese d'ethylene et la maturation de fruits de type climacterique : tomate (lycopersicon esculentum mill.) et avocat (persea americana mill.). analyse comparee du comportement du fruit entier et des disques de pericarpe de tomate." Paris 6, 1993. http://www.theses.fr/1993PA066758.
Full textKotty, Venkata Mukhyaprana Sree Hari Kiran. "An abductive study to identify key influencing variables affecting the last mile logistics endpoint selection : A study done at PostNord AB." Thesis, Uppsala universitet, Industriell teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-455588.
Full textValin, Sabrina. "Les jetons royaux frappés sous les règnes de Louis XIII et de Louis XIV (1610-1661) : inventaire et analyse." Thesis, Paris 10, 2016. http://www.theses.fr/2016PA100150.
Full textThis work is in three volumes, the first volume is the analysis of royal tokens, the second volume is made up illustrations and the third volume is a study corpus composed of four hundred tokens (essentially from the collections of the National library of France). The analysis consists of three parts. The first part involves understanding issues in the invention of the mechanical press and its use in France between 1610 and 1661. As the king supported engravers of tokens and their new machine as they rose to glory from 1610 onwards, officers of the Monetary Court used to strike with the hammer saw the modern tool as a threat for their privileges. Our study shows the need to go beyond former perceptions of this institution and examine how the Monetary Court created offices that improved the manufacture of tokens. The second part is a new consideration of how a designs for the back of tokens were already institutionalized in 1610’s, before the creation of the Academy of inscriptions and Belles-Lettres by Colbert. Lastly, by comparing tokens with other artistic mediums, we consider how these items belong to a visual and common language developed for aristocratic people, that strengthened the link between the king and his favorites. Based on collection of antique coins, symbolic treaties, our study deliveries news interpretations of the tokens and their production
Rose, Annkatrin. "Klonierung und molekulare Analyse von MybLe1 aus Tomate (Lycopersicon esculentum Mill.) : Charakterisierung als Transkriptionsaktivator mit spezifischer Bindung an RBCS (Ribulose-1,5-Bisphosphat-Carboxylase, Small Subunit)-Promotorsequenzen /." [S.l. : s.n.], 1998. http://www.gbv.de/dms/bs/toc/254837174.pdf.
Full textNguyen, Thi Kieu Oanh. "Analyse métabolomique de Isatis tinctoria L. Et de Datura innoxia Mill. : utilisation des réseaux de corrélation pour l'étude de la biosynthèse de molécules à usage pharmaceutique." Amiens, 2013. http://www.theses.fr/2013AMIE0107.
Full textDatura innoxia Mill. And Isatis tinctoria L. Are two medicinal plants of current interest. Our metabolomic study of D. Innoxia Mill. , focused on the untransformed and Agrobacterium rhizogenes transformed roots of whole plants. 50 known and two new alkaloids were quantified and structurally identified using a combination of GC-MS and UPLC-MS. Correlation networks of the metabolites strongly suggested certain architectural aspects of the hyoscyamine-scopolamine biosynthesis pathways and identified rate limiting steps. Biosynthetic steps that were specifically up-regulated in the A. Rhizogenes transformed individuals were clearly revealed. The polar leaf metabolome of I. Tinctoria L. , was profiled using high resolution LC-MS. In parallel, pharmaceutically interesting compounds that appear as artefacts during drying of the leaves were quantified. To clarify what are the biological precursors of these pharmaceutically interesting compounds, we attempted to identify a high number of polar fresh leaf compounds using a new method called CSPP (candidate substrate product pair network). This approach is based on the detection of peak pairs having i) different retention times, ii) certain differences in exact mass corresponding to an expected biochemical conversion and iii) correlation of the abundances. The CSPP approach has enabled: i) identification of previously known molecules, ii) identification of molecules never described previously and, iii) the establishment of intermolecular links in terms biosynthesis. The metabolomics approach using correlation analysis allowed the "high-throughput" identification of natural compounds and demonstrated its interest in the treatment of both fundamental and applied questions
Moussa, Hassane. "Germination du palmier doum, Hyphaene thebaica (Mart.) et analyse de son interaction avec le mil, Pennisetum glaucum L., en zone semi-aride du Niger." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq25442.pdf.
Full textAndrade, Graziela Cristina Rossi de Moura. "Análises multiresíduos de agrotóxicos em tomate (Lycopersicon esculentum Mill) utilizando CG-EM e monitoramento." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-24092013-160649/.
Full textThe concernment about the damage caused to the health of rural workers and the environment due to indiscriminate use of pesticides has increased in recent years. The commonly and intensive use of these substances has created several problems related to public health and environmental disequilibrium, including poisoning of farmers, contamination of food, water and soil. Nowadays, the tomato is a well known vegetables and high consumption in the world. Its culture is highly affected by loss of yield and depreciation of the quality of raw material, due to the occurrence of diseases, pests and abiotic stresses. Considering the concernment about the monitoring of pesticide residues in food, few analytical methods can achieve high quality results for both a wide range of pesticides. In this study, was developed and validated the methodology of multiresidue analysis QuEChERS (quick, easy, cheap, effective, rugged, and safe) for quantification of residues of pesticides in tomatoes. This method provides results quick, easy, inexpensive and high quality. Were analyzed mainly pesticides used to control insects, are: buprofezina, carbofuran, \'alfa\'-endossulfam, \'beta\'- endossulfam, sulphate endossulfam and monocrotophos. Then, performed a spiking of tomatoes homogenized previously, with solutions containing pesticides, in 3 of fortification levels (0.0625, 0.25 and 1.00 mg/kg). The purification of the extracts was performed by dispersive clean-up, and then the extracts were analyzed by GC-MS using SIM mode. This study evaluated the following parameters for validation of the method: linearity, sensitivity, limit of detection (LOD), limit of quantification (LOQ), matrix effect, precision and accuracy (in terms of percentage of recovery). The linear range of concentration of the analytical curves was between 0.25 to 4.0 ng.\'mü\'L-1 with r2 values of greater than 0.99 (in the matrix). The technique GC-MS SIM mode promoted quantification (criteria of recovery between 70 and 120% and RSD% values of less than 20%) of all pesticides studied. Therefore, concluded that the method proved to be appropriate for multiresidue analysis of pesticides in tomatoes, showing sensitivity and selectivity adequate, and all parameters of validation are according with the limits suggested for validation of chromatographic methods. Samples were collected (n = 33) in the Piracicaba city in local market and the levels of pesticide residues were below the limits of detection for the products analyzed. The products acephate, deltamethrin, difenoconazole and fenpropathrin were evaluated in the GC-MS and showed no sensitivity and selectivity in the chromatographic conditions applied. The implementation of new chromatographic methods for analysis of pesticide residues in food should be encouraged to contribute to efficient monitoring to evaluate the quality and safety of food consumed by the population, identify the sources of contamination and provide an assessment as to the misuse and use unauthorized pesticides