Dissertations / Theses: 'Blueprint A 3.0'

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Bikanga, Raphaël. "Proprietes tensioactives de derives 3-0-acyle, 3-0-alkyle et 3-desoxy-3-s-alkyle du d-glucose." Amiens, 1993. http://www.theses.fr/1993AMIES003.

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Nous avons etudie une nouvelle gamme de tensioactifs non-ioniques comprenant 24 derives amphiphiles du d-glucose, du type 3-zr-1,2-0-isopiopylidene--d-glucofuranose (a) et du type 3-zr-d-glucopyranose (b) dans lesquels z=0c0 ; 0 ; s et r=c#nh#2#n#+#1, avec 7n8. Les concentrations micellaires critiques (c. M. C. ) dans l'eau, a 25c, varient de 2 a 40 micromoles/l pour les composes de la famille (a) et de 40 a 200 micromoles/l pour les composes de la famille (b). L'etude de la variation de la c. M. C. En fonction de la temperature et de la longueur de la chaine r, a permis d'acceder aux grandeurs thermodynamiques de micellisation et de montrer que les micelles de la famille (a) sont plus stables que celles de la famille (b). Les rapports hydrophilie/lipophilie (hlb) ont ete determines par la mesure des constantes dielectriques ou par la formulation d'emulsions stables avec un cotensioactif. La seconde methode donne des valeurs coherentes avec le nombre de groupements oh libres. Elle montre aussi que dans chaque famille, le hlb est independant du type de jonction z de la chaine alkyle, mais varie lineairement avec le nombre d'atomes de carbone de cette chaine. Dans cette correlation, la pente de la droite pour la famille (a) est le double de celle obtenue pour la famille (b). L'etude des diagrammes de phases e-h-ta et e-h-ta+cota revele l'existence des domaines monophasiques correspondant a des phases transparentes, a des emulsions bleutees ou blanches et a des gels. Les coordonnees de ces domaines varient avec la temperature et les parametres structuraux z, r, nombre de groupements oh libres. Des formulations stables ont ete obtenues sous forme d'emulsions a action antimousse et de gels pour la cosmetologie (cires epilatoires)

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REVERSAT, LUC. "Proprietes magnetiques, conductrices et optiques d'oxydes de manganese a magnetoresistance colossale deposes en films minces : la 0 . 6 7sr 0 . 3 3mno 3 et pr 0 . 6ca 0 . 4mno 3." Paris 11, 2001. http://www.theses.fr/2001PA112129.

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La magnetoresistance colossale, decouverte en 1994 sur les oxydes de manganese a valence mixte, les manganites, a declenche un engouement rare dans la monde entier. Le compose la 0. 6 7sr 0. 3 3mno 3 est demi-metallique parfait a basse temperature et possede la temperature de curie la plus elevee des manganites ; ceci en fait le support ideal pour les magnetoresistances tunnel et l'electronique de spin. Le compose pr 1 - xca xmno 3 (x=0. 3 a 0. 5) presentent a basse temperature un etat isolant antiferromagnetique d'ordre de charges. Un champ magnetique applique induit un etat ferromagnetique metallique. Dans ce contexte, nous avons choisi de nous consacrer a la caracterisation de films minces de la 0. 6 7sr 0. 3 3mno 3 (lsmo) et de pr 0. 6ca 0. 4mno 3 (pcmo). A partir de films de lsmo elabores par ablation laser et par mocvd, j'ai realise un ensemble de caracterisations structurales, magnetiques et de transport a des epaisseurs variables permettant de comparer les deux methodes de depot et de determiner dans quelles limites d'epaisseur on obtient les meilleurs proprietes (epitaxie, temperature de curie, resistivite). Je montre que la resistivite de lsmo est quasiment constante de 0 hz a 35 ghz, malgre une contribution inductive, de l'ordre de quelques % de la partie reelle de l'impedance a 35ghz. La reflectivite montre un comportement conducteur jusqu'au lointain infrarouge a temperature ambiante et jusqu'au moyen infrarouge a basse temperature. L'effet kerr magneto-optique est important dans certaines gammes de longueur d'onde. Les films minces de pcmo les plus epais et l'assemblage pcmo/lsmo-monocristallin presentent la transition isolant-metal mais elle est peu abrupte. L'assemblage pcmo/lsmo/substrat demeure isolant. Nous avons observe la transition isolant-metal optiquement sur un film mince grace a un systeme de mesure optique en champ et temperature ajustable. La reflectivite diminue lorsque l'echantillon devient ferromagnetique metallique mais de facon moins abrupte que la resistivite.

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LALLEMENT, ALEXANDRA. "Spectroscopie et collisions baryum+molecules dans des gros agregats d'argon ar#3#0#0-ar#4#0#0#0." Paris 11, 1993. http://www.theses.fr/1993PA112045.

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Ce travail presente une etude de gros agregats d'argon comme support pour des processus reactifs ou non reactifs impliquant un atome de baryum et des molecules. Ceux-ci sont fixes aux agregats par collision dans un dispositif de faisceaux croises. On a developpe des methodes de caracterisation permettant de mesurer la taille et la composition des gros agregats. L'etude spectroscopique du baryum implante dans l'agregat d'argon montre que le baryum reste en surface de l'agregat. Quand l'agregat contient en plus des molecules (ch#4, nh#3, sf#6,. . . ), cette meme etude montre que le baryum excite electroniquement est deexcite non radiativement par collision. Ceci est interprete par une mobilite importante en surface de l'agregat. Enfin, l'agregat d'argon est etudie comme milieu reactionnel sur la reaction chimiluminescente ba+n#2o. L'agregat d'argon se revele etre un milieu intermediaire entre la phase gazeuse et les phases condensees. Des proprietes propres a l'agregat du fait de sa taille finie ont ete mises en evidence: possibilite pour les produits de reaction de quitter l'environnement d'argon, augmentation de section efficace de reaction

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EL, HARRAD IMAD CARABATOS CONSTANTIN. "CONTRIBUTION A L'ETUDE STRUCTURALE ET SPECTROSCOPIQUE DE CERAMIQUES PEROVSKITES PLZT : (PB#1##3#X#/#2LA#X@#X#/#2)(ZR#0#,#9#5TI#0#,#0#5)O#3 (X=0,01 A 0,08) ET PZTN: PB#0#,#9#9(ZR#0#,#9#5TI#0#,#0#5)#0#,#9#7NB#0#,#0#2#5O#3 ET DE LEURS TRANSITIONS DE PHASES /." [S.l.] : [s.n.], 1994. ftp://ftp.scd.univ-metz.fr/pub/Theses/1994/El_Harrad.Imad.SMZ9419.pdf.

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Peles, Amra. "Field-dependent magnetic and transport properties and anisotropic magnetoresistance in ceramic La¦0¦.¦6¦7Pb¦0¦.¦3¦3MnO¦3." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0007/MQ45107.pdf.

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Shan, Xiaobing Cheng Zhongyang. "High dielectric constant 0-3 ceramic-polymer composites." Auburn, Ala, 2009. http://hdl.handle.net/10415/1820.

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Sandström, Evelina, and Alexandra Wiberg. "Framtagning av joystick för barn 0-3 år." Thesis, Mittuniversitetet, Avdelningen för naturvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-35731.

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Quenneville, Éric. "Propriétés électroniques des couches minces de La¦0[indice],¦5Sr¦0[indice],¦5MnO¦3." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0015/MQ48869.pdf.

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Trévisiol, Pascale. "Problèmes de référence dans la construction du discours par des apprenants japonais du français, langue 3." Paris 8, 2003. http://octaviana.fr/document/134104560#?c=0&m=0&s=0&cv=0.

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Cette thèse traite de l'acquisition guidée d'une langue 3 (L3) par des apprenants japonais du français (débutants, intermédiaires, avancés) dans une perspective fonctionnelle. L'étude porte sur la façon dont ces locuteurs expriment la référence à 3 domaines conceptuels de base (entités, temps, espace) dans la construction d'un discours narratif (récit de film). L'organisation et l'expression de la temporalité, de la spatialité et de la référence aux entités, ainsi que son développement d'un groupe de niveau à l'autre, sont étudiés à travers l'analyse de la production langagière des apprenants. La question de l'influence de la langue maternelle et/ou d'une autre langue étrangère (anglais L2) est également posée : la comparaison des données d'apprenants avec celles de locuteurs natifs japonophones face à la même tâche discursive permet de mieux cerner le rôle et le poids respectifs de la L1 et de la L2, ainsi que les conditions autorisant le transfert de connaissances antérieures en L3
This thesis deals with the instructed acquisition of French as a 3rd language (L3) by Japanese learners (initial, intermediate, advanced) from a functional point of view. The study investigates the way in which learners refer to 3 basic conceptual categories (entities, time, space) in the construction of a narrative (film retelling). These productions form the basis for an analysis of the expression and organization of temporality, spatiality and reference to entities, as well as its development from a group of level to another. Also studied is the question of the influence of mother tongue and/or another foreign language (english L2) : the comparison of the learners' data with those of Japanese native speakers in the same task makes it possible better to determine the respective role and weight of L1 and L2, as well as the conditions allowing the transfer of former knowledge in L3 production

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Moreno, Sierra César. "New features in solution derived La(0:7)Sr(0:3)MnO(3) thin films : spontaneous outcropping and nanoscale reversible resistive switching." Doctoral thesis, Universitat Autònoma de Barcelona, 2010. http://hdl.handle.net/10803/3424.

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Esta disertación describe las propiedades estructurales, de transporte electrónico y magnéticas básicas de películas delgadas de La0.7Sr0.3Mn03 (LSMO) crecidas por depósito de soluciones químicas en substratos monocristalinos. Además, nuevas características, tales como, el aﬂoramiento espontáneo de puntos nanométricos aislantes en la superﬁcie de la película de LSMO e interruptores resistivos reversibles a la nano escala han sido abordados.
Esta tesis está organizada del siguiente modo: primero, se da una breve introducción sobre manganitas. En el segundo capítulo, el estudio de un nuevo mecanismo para generar estructuras aislantes y nanométricas auto-ensambladas en la superﬁcie de la película de LSMO es presentado. Estas dos fases cristalinas, la película delgada de LSMO y los puntos aislantes, son investigados por microscopía electrónica de transmisión (TEM), mostrando una estructura coherentemente tensionada, si bien el estado de tensión y la simetría de la red de la capa de LSMO debajo de los puntos ha sido modiﬁcada. Estas islas aislantes provocan una tensión isotrópica a la película debajo de las mismas, lo cual, hace disminuir la contribución magneto-elástica en la anisotropía magnética. Se muestra que el tamaño y la concentración de las islas puede ser modiﬁcado a través de la cinética del crecimiento y modiﬁcando la cantidad de exceso de La en la solución precursora inicial.
En el tercer capítulo, se intenta poner en evidencia el papel que juega la generación de tensión en las interficies así como su acomodación cuando se cambian las propiedades de la película delgada. Por este motivo, la dependencia de la propiedades de magneto transporte han sido analizadas. Los cambios de estas propiedades han sido examinados en el marco de un modelo magneto elástico, encontrando que dichos cambios no pueden ser justiﬁcados solamente con el estado de tensión. Sino que, la temperatura de transición de Curie y metal-aislante están inﬂuenciadas por otros factores como pueden ser inhomogeneidades químicas y desorden estructural presente en la película delgada.
En el cuarto capitulo, con el ﬁn de dilucidar el origen del calentamiento debido a efecto Joule, si se trata de un efecto intrínseco o extrínseco, en la biestabilidad resistiva de las películas delgadas de LSMO hemos llevado a cabo un estudio detallado del origen de este calentamiento. Presentamos medidas del transporte electrónico macroscópicas y locales obtenidas con un microscopio de sonda local en modo detección de corriente (C-SFM). Demostramos que, bajo adecuadas condiciones de medida, el régimen de resistencia biestable no puede ser conseguido a una temperatura de 300K. Además, sugerimos que este fenómeno sólo podría ser alcanzado en películas delgadas de LSMO a temperaturas entorno a 250K.
En el quinto capítulo, una nueva metodología basada en la generación de estados resistivos esta¬bles, capaz de programar, almacenar y leer múltiples niveles de información en regiones nanométri¬cas fue llevada a cabo modiﬁcando las propiedades resistivas intrínsecas de las películas delgadas de LSMO. Demostramos que el número de estos diferentes niveles puede llegar al menos a 10 pudiendo ser incluso mayor. Con este concepto de memoria resolvemos algunos de los principales escollos de la memorias resistivas de acceso aleatorio (RRAM), salvo en el conocimiento del mecanismo que gobierna, como son la escalabilidad, el bajo coste de producción, una alta densidad de almacenaje de datos y la uniformidad espacial del interruptor resistivo.
Las técnicas y procedimientos experimentales usados en esta tesis son presentados en el capítulo 7. Tanto la técnica de crecimiento de las películas epitaxiales, depósito de soluciones químicas, como la síntesis de las muestras es descrita. También se explican las diferentes técnicas utilizadas para la caracterización química, estructural, de transporte eléctrico y propiedades magnéticas. Además, el proceso de litografía óptica empleado para las medidas de transporte electrónico se explica en este capítulo.
This dissertation describes the basic structural, electronic transport and magnetic properties of epitaxial La0.7Sr0.3Mn03 (LSMO) thin ﬁlms on single crystalline substrates grown by chemical solution deposition. In addition, new features such as spontaneous outcropping of insulating nanodots on the LSMO surface and nanoscale reversible resistive switching have also been addressed.
The thesis is organized in the following way: ﬁrst, a short introduction to manganites is given. In the second chapter, a study of the new mechanism for the creation of self-assembled insulating epitaxial nanostructures in a LSMO ﬁlm surface is presented. These two crystalline phases, LSMO thin ﬁlm and insulating nanodots, are investigated by transmission electron microscopy (TEM), displaying a coherently strained structure, even though the strain state and the lattice symmetry of the LSMO ﬁlm underneath the islands have been modiﬁed. Insulating islands induce an isotropic strain to the LSMO ﬁlm underneath the island which decreases the magnetoelastic contribution to the magnetic anisotropy. It is shown that the size and concentration of the nanodots can be tuned by means of growth kinetics and through modiﬁcation of the La excess in the precursor chemical solution. Furthermore, nanoscale electrical analysis was performed by C-SFM in order to determine the insulating behavior of the nanodots.
In the third chapter, we report our efforts to give some insight into the role that interfacial strain generation and interfacial strain accommodation play on the thin ﬁlm properties. On this account, the dependence of the LSMO ﬁlms magnetoelectronic properties on the ﬁlm thickness is scrutinized. The changes of the magnetoelectronic properties have been examined assuming a magnetoelastic model and we found that these changes on magnetoelectronic properties cannot be explained merely by the ﬁlm strain state. Instead, the Curie and metal to insulator transition temperatures are also inﬂuenced by other factors, such as chemical inhomogeneities and structural disorder in the ﬁlm.
In the fourth chapter, in order to elucidate the intrinsic or extrinsic origin of the Joule heating effect in the resistance bistability of LSMO thin ﬁlms we accomplish a detailed study of the heating sources. We report macroscopic transport measurements and local electrical behavior at the nanoscale, obtained by conducting Scanning Force Microscopy (C-SFM). We have demonstrated that, under ad¬equate measuring conditions, a regime of bistable resistivity in LSMO thin ﬁlms is not achieved at T = 300 K. We otherwise suggest that this phenomenon would only occur in LSMO ﬁlms when measuring at temperatures below T ∽ 250 K.
In the ﬁfth chapter, a new stable resistive switching based methodology capable to program, store and read out multiple levels in a nanoscale regions were performed modifying the intrinsic properties of the LSMO ﬁlm. We demonstrate that the number of distinguishable resistance levels can readily reach 10 and even higher. We overcome the main handicaps of resistive random-access memory (RRAM) approaches, except for unclear driven mechanism of resistive switching, namely scalability, low cost, high area density of storage data and spatial uniformity of resistive switching process.
The experimental techniques and procedures used in this thesis are summarized in chapter 7. The growth technique of epitaxial thin ﬁlm, chemical solution deposition, and the synthesis of samples are described. Also different chemical characterization, structural, electronic transport and magnetic techniques are presented. In addition, the optical lithography process employed for electronic trans¬port measurements is explained in this chapter.

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Wilson, Dale E. "DRUGDOG 3:0: U.S. Navy Random Urinalysis software package." Thesis, Monterey, California. Naval Postgraduate School, 1994. http://hdl.handle.net/10945/28131.

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Approved for public release; distribution is unlimited
Although the United States Navy has had a mandatory Random Urinalysis Program in effect for many years, there has never been a formal, standardize methodology to implement the process. OPNAV INSTRUCTION 5350.4 (series) provides guidance on what must be accomplished, but not how to accomplish it. Automation and standardization of the program through software implementation can lend confidence to personnel who undergo urinalysis testing that the program is fairly and uniformly applied to each member of the command. Informal previous attempts at developing Random Urinalysis software utilizing unstructured methods has had less than successful results. To address this problem, this thesis describes the development of a complete software application designed to automate the Random Urinalysis Program. Using previous versions of urinalysis software as templates, a standardized, structured approach to application development is used to create a new system. The Definition, Requirements, Evaluation, Design and Implementation phases of software development life-cycle are fully utilized during project development. The result is an actual working tool for the fleet. DRUGDOG 3.0 is a comprehensive software application that will aid individual Urinalysis Coordinators in implementing the Navy's Random Urinalysis Program within their command

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Anchiraico, Gustavo, Gabriel Bautista, la Flor Jorge De, and Anthony Macedo. "Física 3 (MA225): Guía de laboratorio, ciclo 2015-0." Universidad Peruana de Ciencias Aplicadas - UPC, 2014. http://hdl.handle.net/10757/337147.

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El desarrollo de sus habilidades experimentales es parte imprescindible en la formación de un estudiante de ingeniería. Un profesional en ingeniería debe saber medir, usar correctamente las unidades, observar críticamente un fenómeno, redactar correctamente un informe, etc. Estas habilidades deberán ser adquiridas durante el desarrollo de sus cursos formativos. Los cursos de Física, por su carácter intrínsecamente experimental, brindan oportunidades únicas para el aprendizaje de tales capacidades; por ello es de gran importancia incorporar actividades experimentales en los cursos de esta ciencia, pero es igualmente importante que estas se desarrollen de una manera organizada y con objetivos bien definidos sobre la base de la estructura curricular de los cursos de Física, así como de la experiencia de los profesores encargados de esta actividad. Por esta razón es que consideramos necesaria la realización de este manual de experimentos para el curso de Física 3, a fin de que los estudiantes desarrollen de una manera organizada y consciente los diferentes trabajos experimentales y puedan así madurar los conceptos que les serán de gran utilidad no sólo en sus cursos posteriores de ciencias para la ingeniería, sino también en su actividad profesional.

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Costambeys, Richard George. "The topological renormalisation of the 0(3) sigma model." Thesis, Durham University, 1995. http://etheses.dur.ac.uk/5149/.

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Like other field theories of physical interest, the moduli-space integrals of the non-linear two-dimensional 0(3) sigma model diverge. We show that in the one-instanton sector the imposition of a cut-off in the moduli-space leads to an unacceptable dependence of the Green’s function on the way that the field is split into the quantum piece and the classical background. This dependence may be isolated in a term which may be interpreted as an anomaly to the Ward Identity of the theory. The moduli-space divergence is associated with degeneration of the field configurations to those of another topological sector. Hence it is possible that by modifying the Green’s function in, say, the zero-instanton sector will be able to cancel the divergence in the one- instanton sector. We show that the Ward Identity anomaly in the one-instanton sector may be written in the zero-instanton sector at next to leading order in powers of h, and hence we explicitly calculate the Green's function modification. We have called the process of applying this modification "Topological Renormalisation". A central piece of the modification term is the instanton contribution to the Green's function of the model. This is obtained by using two new methods of calculating the determinant of the fluctuation operator. The application of Topological Renormalisation to other theories is also investigated.

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Hanham, Paul Edward. "The CAT(0) dimension of 3-generator Artin Groups." Thesis, University of Southampton, 2002. https://eprints.soton.ac.uk/50613/.

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The three generator Artin groups A(m,n.2) are known to be have CAT(O) dimension strictly greater than two if both m and n are odd [BC]. In Chapter 1 we introduce the notions of CAT(O) dimension and three generator Artin groups. In Chapter 2 we show that if one of m or n is even, then the three generator Artin group has CAT(O) dimension two. In Chapter 3 we extend work by Noel Brady and John Crisp [BC] to enlarge the subclass of groups A(m.n.2) known to have CAT(O) dimension three. In Chapter 4 we classify the structure of a canonical cell complex which the group A(m,n,2) acts on for the case where m is even, greater or equal to six and not divisible by four and n is prime, greater or equal to five. Finally, in Chapter 5 we use the results of Chapter 4 to exhibit classes of rank four Artin groups with CAT(O) dimension two. and a class of rank six Artin groups with CAT(O) dimension two.

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MANOVA, ELINA. "Etude de l'activite catalytique des phases lamellaires du type mps#3 et de leur composes d'intercalation dans la reaction d'oxydation des ions sulfures par l'oxygene. Caracterisation par afm de la surface des composes in#2#/#3ps#3, cu#0#,#5cr#0#,#5ps#3 et cu#0#,#5in#0#,#5ps#3." Paris 11, 1998. http://www.theses.fr/1998PA112027.

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Cette these est consacree d'une part a la synthese et a l'etude des proprietes catalytiques de differentes phases lamellaires mps#3 et de leurs composes d'intercalation dans la reaction d'oxydation des ions sulfures par l'oxygene et d'autre part a l'etude de la surface de composes de cette famille par microscopie a force atomique. La premiere partie commence par un expose des problemes poses a l'environnement par les composes du soufre et des techniques utilisees pour leur elimination. Les proprietes des phases mps#3 sont ensuite rappelees en mettant l'accent sur les reactions d'intercalation par transfert d'electrons. De nouveaux composes d'intercalation de nips#3 ont ete synthetises et caracterises par diffraction des rayons x, analyse elementaire, spectroscopie ir et xps. L'activite catalytique des intercalaires dans la reaction d'oxydation des ions sulfures s'avere superieure a celle de nips#3, avec une energie d'activation plus faible et sans periode d'induction. L'ensemble des resultats montre qu'il existe une correlation entre l'activite catalytique d'un compose donne, sa stabilite chimique et son aptitude a etre reduit par les ions s#2#-. La meme correlation a ete mise en evidence dans le cas des autres phases mps#3 etudiees. La meilleure activite catalytique des phases bimetalliques semble provenir de la dilution des ions nickel par rapport a nips#3. La deuxieme partie commence par une description des techniques de microscopie a champ proche. Les images obtenues pour les phases etudiees sont interpretees en accord avec leur structure cristalline. L'etude de in#2#/#3ps#3 fournit un modele pour expliquer la surstructure observee dans le cas des intercalaires de mnps#3. Un phenomene de localisation des atomes de cuivre a la surface de cu#0#,#5cr#0#,#5ps#3 est mis en evidence. Enfin, les modifications structurales provoquees par la pointe sur la surface de cu#0#,#5in#0#,#5ps#3 ouvrent des perspectives de stockage d'information a echelle atomique.

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Dkhil, Brahim. "Role des nanostructures chimique et polaire sur la transition de phase relaxeur-ferroelectrique dans les composes pbmg#1#/#3nb#2#/#3o#3 et pbmg#0#. #3nb#0#. #6ti#0#. #1o#3." Paris 11, 1999. http://www.theses.fr/1999PA112038.

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L'etude structurale de pbmg#0#. #3nb#0#. #6ti#0#. #1o#3 (pmn/pt x = 0. 1) a permis de montrer que pmn/pt x = 0. 1 transite vers t#c = 285 k, tout en conservant de la relaxation dielectrique, vers une phase ferroelectrique de symetrie en moyenne rhomboedrique. Dans la phase rhomboedrique, la distorsion est essentiellement due a celle du reseau des octaedres d'oxygene. Parallelement, nous montrons que l'atome de plomb est en position de desordre de part et d'autre de t#c. Son deplacement de direction <100> et d'amplitude #p#b (0. 25 a) est relativement important et peut etre responsable d'une polarisation locale non negligeable. Nous suggerons alors que le desordre du plomb est a l'origine de l'effet relaxeur. Nous montrons aussi, dans pmn et pmn/pt x = 0. 1, l'existence de zones d'ordre chimique a courte portee (6 nm). Ces zones d'ordre, reparties de facon aleatoire dans la matrice, imposent a leur environnement une symetrie tetragonale. Par ailleurs, des correlations polaires evoluent avec la temperature mais ne s'etablissent pas a longue portee (20 nm dans le pmn) et se bloquent vers t#g (= 220 k pour pmn et 240 k pour pmn/pt x = 0. 1), donc de facon independante de la transition de phase induite. Nous proposons alors que ces correlations soient liees a une mise en ordre locale d'atomes de plomb (imposee par les zones d'ordre chimique) dans la matrice, qu'elle soit de symetrie moyenne cubique ou rhomboedrique. L'application d'un champ electrique statique a pour effet, au-dela d'une certaine valeur seuil, d'induire une transition de phase structurale dans pmn. Nous montrons que des l'application du champ electrique exterieur des domaines de symetrie rhomboedrique apparaissent. Seul leur nombre augmente, en revanche leur taille reste constante (environ 70 nm). La transition de phase se met alors en place par effet de percolation. Nous montrons aussi qu'elle se declenche avec des temps variables dependant a la fois de la temperature et de la valeur du champ applique. En conclusion, nos resultats suggerent l'existence de deux mecanismes expliquant les proprietes structurales des relaxeurs pmn et pmn/pt x = 0. 1. Le premier mecanisme concerne la transition de phase induite a proprement dite, qui est liee a une deformation du reseau des octaedres d'oxygene. Quant au second mecanisme, il concerne la mise en ordre (locale) des atomes de plomb. Cette mise en ordre pourrait etre a l'origine du phenomene de la relaxation dielectrique.

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17

Kahl, Jochem. "Das System der ägyptischen Hieroglyphenschrift in der 0.-3. Dynastie /." Wiesbaden : Harrassowitz, 1994. http://catalogue.bnf.fr/ark:/12148/cb357107112.

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18

Chiquetti, Sandra R. O. "Estudo fonetico em crianças fissuradas de 0 a 3 anos." [s.n.], 1986. http://repositorio.unicamp.br/jspui/handle/REPOSIP/270885.

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Orientador : Luiz Carlos Cagliari
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem
Made available in DSpace on 2018-07-15T02:21:25Z (GMT). No. of bitstreams: 1 Chiquetti_SandraR.O_D.pdf: 4049185 bytes, checksum: 26c5c8b4513e52304d0f64ba068f01a3 (MD5) Previous issue date: 1986
Resumo: O objetivo deste estudo é observar e analisar o desempenho lingüístico de crianças fissuradas de 0 a 3 anos, submetidas a uma Nova Proposta de Tratamento, e comparar com o desempenho lingüístico de crianças da mesma faixa etária submetidas a tratamento convencional de reabilitação da fala. A aplicação da Proposta e a levantamento dos resultados lingüísticos, ilustram a validade e o êxito ela Nova Proposta que ora se expõe. A abordagem terapêutica as condutas adotadas no berçário e no ambulatório, assim como os aspectos de fala ela criança fissurada de 0 a 3 anos, através das emissões consonantais e vocálicas, os quadros fonéticos, as construções silábicas, as folhas lexicais de cada elemento, além do quadro comparativo de emissões e estruturas silábicas de um dos elementos ela amostra com urna criança normal da mesma idade, são apresentadas, analisadas e discutidas. Esta Nova Proposta não se limita apenas a esta dissertação, ela continua sendo aplicada com êxito, o que reforça a experiência, agora tida como prática constante. A continuidade do trabalho descarta a possibilidade de os resultados da pesquisa apresentada neste trabalho serem simples acaso de uma pequena amostragem aqui analisada. Além disso, os resultados pós-cirúrgicos também já se encontram compilados e analisados e serão apresentados em trabalho posterior. Espera-se que os dados e as questões aqui levantadas sirvam como um ponto de apoio para nortear outras pesquisas de interesse diversas áreas envolvidas no tratamento dessa patologia, assim como, para mostrar que a própria lingüística precisa se dar conta da importância de sua atuação e participação em uma equipe multidisciplinar para o tratamento da criança fissurada
Doutorado
Doutor em Linguística

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19

Teirikangas, M. (Merja). "Advanced 0–3 ceramic polymer composites for high frequency applications." Doctoral thesis, Oulun yliopisto, 2011. http://urn.fi/urn:isbn:9789514296185.

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Abstract The main object of this thesis was to research injection mouldable 0–3 type ceramic polymer composites and their dielectric and magnetic properties in the GHz frequency region. The work has been divided into three sections. In the first section, two–phase ceramic polymer composites containing dielectric and magnetic fillers have been investigated and their characteristics analysed by reference to pre–existing mixing rules. The exploitation of these composites in miniaturizing devices, such as antennae, is presented and discussed. The second part describes three phase composites containing different nanosize additives (silver, silicon and alumina fibres) towards improving their dielectric properties. In the third part, some periodical and multilayer structures for ceramic polymer composite layers are proposed. In the case of two–phase ceramic polymer composites, with 37 vol.% of dielectric filler (Barium Strontium Titanate, BST) embedded into a thermoplastic polymer (ER140) matrix, the highest measured relative permittivity was 15 with a dielectric loss value of 0.008 at 1 GHz. With 43 vol.% of magnetic filler (hexaferrite, CO2Z) in ER182 matrix, the highest achieved relative permeability was 1.8 with a magnetic loss value of 0.077 at 1 GHz. Composites with Co2Z filler provide a 77% size reduction, and could thus be used advantageously in antennae. It was found that a 2–6 vol.% nanoaddition in BST–ER140 composites enhanced the relative permittivity drastically with only a minor effect on the dielectric losses. In particular, with only 2 vol.% addition of nanosize silver particles into the BST–ER140 composite, a 52% increase in the relative permittivity was obtained, with no significant change in the dielectric losses (tan δε = 0.004). Vertically and horizontally periodical dielectric composite structures comprising layers of different dielectric properties have been fabricated as well as multilayered structures containing dielectric and magnetic layers. The measurement results indicate that such multimaterial multilayer structures are good candidates for components with reduced dielectric and magnetic losses
Tiivistelmä Väitöstyön tavoitteena oli tutkia ruiskuvalettavien 0–3 –liitännäisten keraami-polymeerikomposiittien ominaisuuksia erityisesti niiden GHz-taajuusalueen dielektristen ja magneettisten ominaisuuksien kannalta. Työ on jaettu kolmeen osaan. Ensimmäisessä osassa on tutkittu kaksikomponenttisia keraami-polymeerikomposiitteja, joissa täytemateriaali on joko dielektristä tai magneettista materiaalia. Komposiittien ominaisuuksia on analysoitu jo olemassa olevien seosmallinnuskaavojen avulla. Komposiittien hyödyntämistä erilaisten sovellusten, kuten antennien, minityrisoinnissa on myös käsitelty. Toinen osa käsittelee kolmikomponenttisia komposiitteja, joissa lisäaineena on käytetty pieniä määriä nanomateriaaleja (hopea- ja piipartikkelit sekä alumiinioksidikuitu) tarkoituksena parantaa komposiitin dielektrisiä. Kolmannessa osassa on tutkittu periodisia ja monikerroksisia keraami- polymeerikomposiittirakenteita rakenteita. Kaksikomponenttisten keraami-polymeerikomposiittien tapauksessa suurin permittiivisyyden arvo 15 dielektristen häviöiden ollessa 0.008 (mittaustaajuus 1 GHz) saatiin komposiitille, jossa dielektristä täytemateriaalia (Barium Strontium Titanaatti, BST) oli 37 tilavuus-% termoplastisessa polymeerimatriisissa (ER140). Korkein saavutettu permeabiliteetin arvo 1.8 magneettisten häviöiden ollessa 0.077 (mittaustaajuus 1 GHz) saatiin komposiitille, jossa magneettista täyteainetta (hexaferriitti, Co2Z) oli 43 tilavuus-% ER182 -matriisissa. Tämä täyteaine mahdollistaa nykyistä jopa 77 % pienempien antennielementtien kehittämisen. Tukimuksessa todettiin 2–6 tilavuus-% nanomateriaalin lisäyksen BST-ER140 -komposiitteihin kasvattavan permittiivisyyttä merkittävästi juurikaan vaikuttamatta dielektrisiin häviöihin. Erityisesti 2 tilavuus-% hopeananopartikkeleiden lisäys BST-ER140 -komposiitteihin kasvatti permittiivisyyttä 52 % dielektristen häviöiden (tan δε = 0.004) kasvamatta. Työssä on myös tutkittu periodisesti (vertikaali ja horisontaali) koostettuja dielektrisiä komposiittirakenteita, jossa eri kerroksissa on erilaiset dielektriset ominaisuudet sekä monikerrosrakenteita, joissa vuorottelevat dielektriset ja magneettiset kerrokset. Mittaukset osoittivat, että monimateriaaliset monikerrosrakenteet ovat hyviä kandidaatteja komponentteihin, jotka vaativat pieniä dielektrisiä ja magneettisiä häviöitä

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Jorge, Gabriela André. "Avaliação da viabilidade de mapeamento das tarefas do consumidor em processos de serviços." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3136/tde-16052014-152206/.

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Esta dissertação aborda o problema da falta conhecimento a respeito do processo de mapeamento e avaliação das tarefas executadas pelos consumidores em processos de serviços reais. De fato, a literatura acerca da construção de mapas que permitam visualizar as tarefas desempenhadas pelos consumidores nos processos de serviço ainda se mostra escassa o que motiva o desenvolvimento de pesquisas que venham a contribuir para a sistematização e difusão de tal prática. Neste contexto, este trabalho objetiva contribuir com o gerenciamento e controle das operações de serviço verificando como a participação do consumidor nos processos de serviço pode ser mapeada e medida. Desta forma são considerados os seguintes objetivos específicos: a) Verificar como a literatura propõe a construção de mapas para visualizar as tarefas executadas pelos consumidores em processos de serviço; b) Aplicar o Mapa de Consumo em casos reais de serviço detalhando como a construção deste mapa pode ser conduzida, identificando e medindo as tarefas desempenhadas pelos consumidores; c) Identificar as principais dificuldades encontradas na construção do Mapa de Consumo e medição das tarefas dos consumidores. As principais ferramentas identificadas na revisão da literatura para a forma de mapeamento focada foram o SIPOC, Blueprint, Mapa de Consumo, Carta de Atividades e SERVPRO. Realizou-se então uma análise comparativa das mesmas, procurando-se destacar aspectos singulares da forma como propõem que a participação do consumidor no processo de serviço seja visualizada. Para se coletar dados empíricos sobre a aplicação de uma ferramenta de mapeamento com o propósito de representar e analisar a participação do consumidor, a pesquisa explora o potencial de aplicação da ferramenta Mapa de Consumo, proposta por Womack e Jones (2006), no estudo das tarefas e interações que compõem processos de serviço em que o consumidor atua como coprodutor, exercendo papel fundamental para concretização do serviço. Assim, o escopo desta pesquisa foi delimitado à consideração de processos de serviço do tipo faça você mesmo com interação remota e com interação presencial, entre cliente e provedor, em casos nos quais a variabilidade do processo é baixa. O serviço do tipo faça você mesmo com interação remota selecionado como objeto de estudo foi um processo de compra coletiva pela internet, e para seu mapeamento foram adotados os métodos de coleta de dados por estudo de caso, utilizando a empresa provedora do serviço como fonte de dados, e experimento, recorrendo aos seus consumidores como fonte de dados. Para o serviço do tipo faça você mesmo com interação presencial, selecionou-se o processo de estacionar o carro em um shopping center, e para seu mapeamento foi adotado o método de coleta de dados por meio de uma enquete realizada in loco com seus consumidores. Ao final da pesquisa, conclui-se que a construção e aplicação do Mapa de Consumo para os processos de serviço do tipo faça você mesmo, tanto na modalidade com interação remota como na modalidade com interação presencial são viáveis e que as principais dificuldades acerca da construção dos mapas referem-se ao tempo requerido para coleta dos dados e a adesão de participantes à pesquisa. Além disso, são elencadas propostas para o desenvolvimento de pesquisas futuras relacionadas ao tema abordado nesta dissertação.
This dissertation examines the problem of lack of knowledge about the process of mapping and evaluating the tasks performed by consumers in real service processes. Indeed, the literature about the construction of maps that enable the visualization of tasks undertaken by consumers in service processes are still scarce, what motivates the development of research works that might contribute to the systematization and dissemination of such practice. In this context, this work aims at contributing to the management and control of service operations, by examining how the consumer participation in service processes can be mapped and measured. Thus, the following objectives are considered: a) Verify how the literature proposes the construction of maps to visualize the tasks performed by consumers in service processes; b) Apply the Consumption Map in cases of real service detailing how the construction of this map can be conducted, by identifying and measuring tasks undertaken by consumers; c) Identify the main difficulties encountered in the construction of Consumption Map and in the measurement of consumer tasks. The main tools identified in the literature review to address this kind of mapping were SIPOC, Blueprint, Consumption Map, Activity Chart and SERVPRO. A comparative analysis of these tools was developed seeking to highlight unique aspects of the way how they propose that consumer participation in the service process be displayed. To collect empirical data on the application of a mapping tool with the purpose of representing and analyzing the participation of consumer, the research explores the potential application of the Consumption Map tool, proposed by Womack and Jones (2006), in the study of tasks and interactions that compose service processes in which the consumer acts as co-producer, playing a fundamental role for the realization of the service. Therefore, the purpose of this research was limited to the analysis of service processes of \"do it yourself\" type with remote interaction and with face-to-face interaction between customer and provider, in cases in which process variability is low. The \"do it yourself\" type of service with remote interaction selected as the object of the study was a process of shared shopping by the internet, and for its mapping the data collection method adopted were the case study, using the service provider company as data source, and experiment, using its consumers as data source. For the \"do it yourself\" type of service with face-to-face interaction, it was selected the car parking process in a shopping center, and the data collection method adopted for its mapping was a survey conducted in situ with its consumers. At the end of the research, it is concluded that the construction and application of Consumption Map for service processes of \"do it yourself\" type, either in remote interaction mode or in face-to-face interaction mode are feasible and that the main difficulties in the construction of the maps refer to the time required for data collection and the adherence of participants to the research. Also, proposals for the development of future research related to the topic covered in this dissertation are listed.

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Lamit, Corinne. "Approches de synthèse au squelette bicyclique [4. 3. 0] du botrydial." Aix-Marseille 3, 2009. http://www.theses.fr/2009AIX30010.

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Le botrydial, toxine phytopathogène sécrétée par Botrytis cinerea, possède un squelette bicyclique [4. 3. 0], 6 centres stéréogènes et une activité biologique importante. Par conséquent, nous nous sommes intéressés à la synthèse du botrydial et d’analogues. Dans la littérature, plusieurs équipes ont proposé différentes stratégies mais aucune n’a abouti, ce qui démontre la difficulté de sa synthèse. Lors de ce travail, nous avons exploré 4 approches qui ont en commun une étape clé d’aldolisation intramoléculaire d’un aldéhyde sur une cétone. Certaines approches nous ont permis d’accéder au squelette du botrydial avec une stéréosélectivité intéressante lors de l’étape clé. Dans le cadre de ce travail, nous avons aussi eu accès à des décalines polyfonctionnalisées par réaction de Prins catalytique et diastéréosélective. L’activité biologique de certains composés a été étudiée par l’équipe du Prof. Isidro González Collado à Cádiz en Espagne avec qui nous avons collaboré
Botrydial is a phytotoxin produced by Botrytis cinerea with a bicyclic [4. 3. 0] skeleton and 6 asymmetric carbons. To our knowledge, many teams had proposed synthetic approaches but botrydial had never been synthesised. We have explored 4 strategies with an intramolecular adol reaction as key step. These approaches permit us to obtain several bicyclic [4. 3. 0] compounds with diastereoselectivity during aldol reaction. For these studies, we have synthesised polyfunctionalised decalines by a catalytic and diastereoselective Prins reaction. Biological activity of several compounds has been tested in collaboration with the team of Prof. Isidro González Collado at Cádiz University in Spain

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Pinho, Ana Mafalda de Castro e. "Avaliação do desenvolvimento pessoal e social dos 0 aos 3 anos." Master's thesis, Universidade de Aveiro, 2008. http://hdl.handle.net/10773/1011.

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Mestrado em Ciências da Educação - Formação Pessoal e Social
Nesta investigação pretendemos estudar a avaliação do desenvolvimento pessoal e social de crianças dos 0 aos 3 anos em creche a partir de grelhas de observação que construímos com base em Bluma et al. (1994), Rigolet (2000), Gleitman et al. (2003), Doan-Sampon et al. (1999) e Cró (1994), que validámos na fase inicial do trabalho com educadoras de infância que trabalham em creche. Procuramos, também, contribuir para a clarificação da relevância de uma proposta pedagógica (currículo) para a creche atendendo, portanto, à qualidade desse contexto e às suas funções: guarda e educativa. Assim, a adequação e regulação da prática pedagógica a cada criança e ao grupo passa, não só, pelo cumprimento de um currículo adaptado aos interesses e necessidades de cada criança, mas também, pelo acompanhamento regular individualizado das mesmas. As grelhas de observação/avaliação, um dos vários instrumentos de avaliação, possibilitam ao educador de infância realizar um acompanhamento mais próximo, registar a informação recolhida, organizála e, dessa forma, adequar o processo educativo. A importância da avaliação é destacada por diversos autores de entre os quais Brazelton e Chamar (1989) que constatam que quanto mais pequena é a criança mais necessidade tem de avaliações ininterruptas. ABSTRACT: With this research we intend to study the assessment of the personal and social development of 0 to 3 year-old children, according to the observation and evaluation tables created based on Bluma et al. (1994), Rigolet (2000), Gleitman et al. (2003), Doan-Sampon et al. (1999) and Cró (1994). In the preliminary stage of the research, these tables were valid by young children caregivers who work at day-care centers. The objective of this research is to contribute with an educational proposal of a curriculum for day-care centers, not only to provide them quality but also to there functions: child guardian and educational. This way, the appropriate educational practice for each child will be focused not only on a curriculum designed to meet the needs and interests of each one, but also on a regular and individualized support for each child. The observation and evaluation tables created by children caregivers to observe the children are one of the many methods used to assess individuals. It enables them to provide a more efficient assistance to the children, it allows a closer follow-up on each child, it enables to gather more information and last but not least, it facilitates the education process. The importance of children assessment is supported by many authors such as Brazelton and Chamar (1989). They defend that the younger the child is the higher are its needs of a continuous and rigorous assessment.

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Hake, Andrea. "Rotationsenergietransfer im NH(A3P, v=0)-Radikal [NH(A 3 Pi, v=0)-Radikal] durch inelastische Stösse mit Ammoniak." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963953664.

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Capdevila, Solà Maria Reina. "Conductes musicals dels infants 0-3. Anàlisi i validació d'una pauta d'observació." Doctoral thesis, Universitat de Barcelona, 2008. http://hdl.handle.net/10803/1278.

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En aquesta tesi s'ha construït i validat una eina d'observació per permetre als educadors dels infants de 0 a 3 anys fixar-se, conèixer i valorar les reaccions i les conductes dels nens davant el fet sonor i l'experiència musical, amb la intenció que pugui esdevenir un instrument per tots els qui la vulguin utilitzar per orientar i regular millor la seva mirada en els comportaments musicals dels infants

Els objectius que ens hem fixat són:

- Aprofundir en les conductes musicals dels infants.

- Confeccionar i validar una pauta d'observació.

- Estimar els canvis produïts en l'educador a partir de l'ús de la pauta d'observació, de la seva anàlisi i la seva valoració.

La nostra hipòtesi és que si el mestre té una mirada i una escolta ordenada davant les conductes musicals infantils podrà enriquir musicalment la vida dels nens.

Ens interessa saber com responen els infants als diferents estímuls sonors, com descobreixen i investiguen dins el so, com relacionen i s'expressen a partir de la pròpia veu, els materials que tenen a l'abast, com escolten i reaccionen als sons de l'entorn i a la música que se'ls ofereix.

Per l'altre costat volem estimular a l'adult a oferir entorns rics als infants, a interactuar amb ells, a obrir les seves oïdes, a expressar-se amb la música juntament amb els nens i nenes de les seves aules.

És per això que en el Marc teòric hem dedicat un capítol a l'infant d'aquesta edat i ens hem posicionat en la perspectiva d'un infant ric i potent. Hem analitzat els principis de la conducta musical, els factors que intervenen en la imaginació i la creativitat, hem situat la proposta dins un marc socioconstructivista i hem aprofundit en el paper de l'observació en la pràctica educativa.

També ens hem aproximat a la figura del mestre vist des de la vessant de la formació permanent, que és el marc on ha nascut la necessitat d'aquesta recerca, apostant per el mestre-investigador.

La investigació proposa una anàlisi de les observacions fetes en diferents escoles d'educació infantil (1r cicle, infants de 0 a 3 anys); les entrevistes mantingudes i els qüestionaris avaluatius que en van fer les educadores participants.

Les dades s'han tractat qualitativament i quantitativa; dels resultats obtinguts s'ha arribat a les conclusions finals que demostren la validesa de l'eina construïda i, com el canvi de mirada davant les conductes musicals dels infants enriqueix la vida tant d'ells com la dels adults. De tota la informació recollida s'han obert diferents línies d'investigació.
In this thesis, an observational tool was constructed and validated to help educators of O-3-year-old children to notice, get to know, and to assess their reactions and behaviours in front of sound and musical experience.

Our objectives were as follows:

- To go deeply into musical behaviours in children.

- To elaborate and validate an observational pattern.

- To estimate changes produced in educators after using this observational pattern, their analysis and assessment.

Our hypothesis was that, if educators are provided with an orderly look and listen when facing children's musical behaviours, they will be able to enrich the children's life musically.
In the theoretical framework, a chapter was devoted to children at these ages, and our perspective was that of a rich and powerful child. We analyzed the principles of musical behaviour, and factors that intervene in imagination and creativity; our proposal is within a social-constructivist framework; and we also studied the role of observation in educational practice in detail.

We also approached the teacher figure from the perspective of continuous training, which is the framework where this research need was born, with a clear option for the teacher-researcher.

Our research proposes an analysis of observations carried out in different early childhood education schools (1st cycle, 0-to-3-year-old children); interviews and evolutionary questionnaires carried out by participating educators.

Data were quantitatively and qualitatively processed; from our results, we reached the conclusions that showed the validity of the constructed instrument and how a change of vision in front of children's musical behaviours can enrich both their lives and those of adults. Different research lines have started from all the collected information.

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Massamba-Sita, Hyacinthe. "Etude et réalisation d'un générateur haute fréquence de puissance (0-3 KW)." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375994997.

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26

Brooks, Stacey Elizabeth. "Utilization of low protein diets fed to 0 to 3 week broilers /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418009.

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Devaiah, Shivakumar P., and Cecelia A. McIntosh. "Site-Directed Mutational Analysis of Flavonol 3-0-Glucosyltransferases from Citrus paradisi." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/340.

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Glucosyltransferases (GTs) are the important group of enzymes which facilitates the incorporation of UDPactivated glucose to a corresponding acceptor molecule through glucosylation. Glucosylation is a common alteration reaction in plant metabolism and is regularly associated with the production of secondary metabolites. Glucosylation serves a number of roles within metabolism including: stabilizing structures, affecting solubility, transport, and regulating the bioavailability of the compounds for other metabolic processes. GTs involved in secondary metabolism share a conserved 44 amino acid residue motif (60–80% identity) known as the plant secondary product glucosyltransferase (PSPG) box, which has been demonstrated to include the UDP-sugar binding moiety. Among the secondary metabolites, flavonoid glycosides affect taste characteristics in citrus making the associated glucosyltransferases particularly interesting targets for biotechnology applications in these species. Custom design of enzymes requires understanding of structure/function of the protein. The present study focuses on creating mutant Flavonol- 3-O- Glucosyltransferases proteins using site-directed mutational analysis and testing the effect of each mutation on substrate specificity and kinetic properties of the enzyme.

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Popov, Ivan A. "Chemical Bonding in Novel 0-, 1-, 2-, and 3-Dimensional Chemical Species." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/5883.

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While the trial and error approach is still being a dominant pathway for synthesis of various compounds in chemistry, computation-driven approaches have recently been shown to be a very efficient way towards the rational design of new materials with tailored properties. In principle, theoretical design of materials may not only significantly reduce the costs associated with the experiment, but may also result in the prediction of novel compounds possessing completely unexpected geometries. These compounds can serve as long-lived catalysts, powerful batteries, efficient solar cells, or reliable energy storage materials. Since geometric structure of any system is related to its electronic structure, it is very important to understand how atoms are bonded together since the chemical properties of materials depend upon the chemical bonds that make it up. Armed with this knowledge, researchers are able to develop theoretical models and design principles, which can be used to describe the geometry of the given system as well as rationally design novel species possessing desired structures and properties. The common thread of this dissertation was the development of the chemical bonding models for a vast range of chemical systems, including gas-phase clusters observed in a molecular beam or isolated in a condensed phase, various hypervalent iodine molecules, experimentally made two-dimensional materials of carbon and boron, as well as theoretically predicted molecular chains and atom-thin sheets awaiting their experimental confirmation.

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Manuzzi, Daniele. "Misura di asimmetria CP nei decadimenti: $D^0 \to K^+K^-$ e $D^0 \to \pi^+ \pi^-$ ad LHCb." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9584/.

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La fisica del sapore è uno dei settori di ricerca più promettenti per realizzare misure di altissima precisione del Modello Standard e per osservare indirettamente, attraverso i decadimenti mediati dalle interazioni deboli nuove particelle. L'esperimento LHCb \`e stato progettato per realizzare misure di altissima precisione in questo settore. Grazie all'alta luminosità integrata disponibile (3 fb \ap{-1}) ed alla elevata sezione d’urto di produzione dei quark charm, LHCb \`e in grado di realizzare misure di una precisione mai raggiunta fino ad ora da altri esperimenti. In questo lavoro di tesi \`e stata realizzata una misura preliminare della simmetria di violazione di CP, realizzata mediante i decadimenti dei mesoni neutri $D^0$ negli stati finali $K^+K^-$ e $\pi^+\pi^-$. Per realizzare la misura sono stati selezionati i decadimenti $D^{*\pm} \to D^0(K^+K^-)\pi^\pm_s$ e $D^{*\pm} \to D^0(\pi^+\pi^-)\pi^\pm_s$ utilizzando i dati raccolti da LHCb durante il RUN-1 (2010-2012) ed \`e stato sviluppato un modello di adattamento ai dati in grado di misurare la differenza di asimmetria di CP integrate nel tempo nei decadimenti $D^0 \rightarrow K^+K^-$ e $D^0 \rightarrow \pi^+\pi^-$, $\Delta A_{CP}$. Il modello \`e stato sviluppato in modo da descrivere le distribuzioni di massa invariante del $D^0$ e del $D^{*\pm}$ sia per la componente di segnale sia per quelle di fondo ed \`e stato adattato ai dati, per sottrarne i fondi e misurare le asimmetrie $A_{RAW}(K^+K^-)$ e $A_{RAW}(\pi^+\pi^-)$, corrispondenti alla differenza tra il numero di eventi di segnale $D^{*+}$ e $D^{*-}$, diviso la loro somma. La differenza di queste asimmetrie corrisponde a $\Delta A_{CP}$, la cui misura, non ufficiale, \`e stata determinata essere $\Delta A_{CP}= (-0.12\pm 0.08)\% $. Questo risultato rappresenta la miglior misura al mondo mai realizzata da un singolo esperimento.

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30

Duvelson, Emilien. "Etude des effets de la relecture sur la compréhension de textes explicatifs par des enfants de cycle 3 dans le contexte diglossique d'Haïti, conception et validation d'aides et de remédiations aux difficultés de compréhension." Paris 8, 2011. http://www.theses.fr/2011PA083364.

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Cette recherche sur la compréhension et la production de texte explicatif décrivant les causes et les conséquences du changement climatique, en français (L2), étudie les effets de la relecture/audition en langue maternelle L1, sur la compréhension chez des apprenants de cycle 3 dans le contexte diglossique d’Haïti. Ces apprenants, particulièrement ceux issus de milieux défavorisés, rencontrent des difficultés à comprendre et à produire des textes, surtout lorsqu’ils manquent de ressources linguistiques et de connaissances sur le monde évoqué dans les textes. A la suite de la lecture du texte en L2 et de sa relecture/audition en L1, les élèves de milieux défavorisés réussissent à activer leurs connaissances construites dans leur langue et leur culture, à rappeler les propositions les plus importantes du texte et donc à mieux le comprendre. Dans le cadre d’un travail collaboratif en présentiel et à distance, des aides textuelles à la réécriture en langue maternelle ont permis une amélioration de la qualité des textes produits chez les élèves défavorisés. Les réponses à un questionnaire de connaissances initial et final qui encadraient les tâches d’écriture et de réécriture ont montré que la langue maternelle, utilisée comme aide à l’activation des connaissances, lors de la compréhension ou de la production en L2, a contribué à activer chez les élèves de milieux défavorisés leurs connaissances construites dans cette langue et à construire de nouvelles connaissances. Les données de cette recherche permettent de contribuer au renouveau de l’apprentissage/enseignement en L2 en contexte diglossique
This research on the understanding and the production of explanatory text describing the causes and the consequences of the climate change, in French (L2), studies the effects of the second reading / hearing in Native language L1 on the understanding at learners of cycle 3 in the diglossia context of Haiti. These learners, particularly those stemming from discriminated circles, meet some difficulties to understand and produce texts, especially when missing linguistic resources and knowledge on the world evoked in texts. Following the reading of the text in L2 and her second reading / hearing in L1, the pupils of discriminated circles manage to activate the knowledge built in their language and their culture and also to remind the most important propositions of the text and to help them have a better understanding of it. Within the framework of a collaborative Face-to-face work and remote, textual helps in native language rewriting allowed an improvement of the quality of texts produced at the discriminated pupils. The answers to an initial and final questionnaire of knowledge which framed the tasks of writing and rewriting showed that the native language was used as help to activate knowledge during the understanding or the production of L2; which contributed to activate the knowledge built in this language and to help build new knowledge in the furure at the circles of discriminated pupils. The data of this research allows to contribute to the revival of learning / education in L2 in diglossia context, more particularly at the Haitian learners of circles sociocultural discriminated

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Zahmakiran, Mehmet. "The Preparation And Characterization Of Zeolite Framework Stabilized Ruthenium(0) Nanoclusters." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611764/index.pdf.

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The use of microporous materials with ordered porous structures as the hosts to stabilize metal nanoclusters has attracted particular interest in the catalysis because the pore size restriction could confine the growth of nanoclusters and lead to an increase in the percentage of catalytically active surface atoms. In this dissertation we report the preparation, characterization and the investigation of the catalytic performance of zeolite framework stabilized ruthenium(0) nanoclusters in the hydrolysis of sodium borohydride and the hydrogenation of aromatics. The zeolite framework stabilized ruthenium(0) nanoclusters were prepared by borohydride reduction of ruthenium(III)-exchanged zeolite-Y in aqueous solution at room temperature and isolated as black powders. Their characterization by using ICP-OES, XRD, TEM, ZC-TEM, HR-TEM, TEM-EDX, SEM, XPS, DR-UV-vis, far-IR, mid-IR, Raman spectroscopy, N2 adsorption-desorption technique and (P(C6H11)3)/(PC6H11O3) poisoning experiments reveal the formation of ruthenium(0) nanoclusters within the zeolite cages as well as on the external surface of zeolite without causing alteration in the framework lattice or loss in the crystallinity. The catalytic performance of zeolite framework stabilized ruthenium(0) nanoclusters depending on the various parameters was tested in the hydrolysis of sodium borohydride and the hydrogenation of aromatics. The important results obtained from these experiments can be listed as follows: (i) the zeolite framework stabilized ruthenium(0) nanoclusters provide a record total turnover number (103200 mol H2/mol Ru) and turnover frequency (33000 mol H2/mol Ru&bull
h) in the hydrolysis of sodium borohydride at room temperature, (ii) they also catalyze the same reaction in the basic medium (in 5 wt % NaOH solution) at room temperature with the unprecedented catalytic activity (4000 mol H2/mol Ru&bull
h) and lifetime (27200 mol H2/mol Ru), (iii) the isolated and vacuum dried samples of zeolite framework stabilized ruthenium(0) nanoclusters are active catalysts in the hydrogenation of cyclohexene, benzene, toluene and o-xylene in cyclohexane, they provide TOF values of 6150, 5660, 3200, and 1550 mol H2/mol Ru&bull
h, respectively under mild conditions (at 22.0 ±
0.1 °
C, and 40 ±
1 psig of initial H2 pressure), (iv) more importantly, the zeolite framework stabilized ruthenium(0) nanoclusters are the lowest temperature, most active, most selective (100 % selectivity with complete conversion) and longest lifetime catalyst hitherto known for the hydrogenation of benzene to cyclohexane in the solvent-free system (TTON of 2420 and TOF of 1040 mol benzene/mol Ru&bull
h) under mild conditions (at 22.0 ±
0.1 °
C, and 40 ±
1 psig of initial H2 pressure), (v) moreover, the resultant ruthenium(0) nanoclusters exhibit high durability throughout their catalytic use against agglomeration and leaching. This significant property makes them reusable catalyst without appreciable loss of their inherent activity.

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Gojdka, Björn [Verfasser]. "New Concepts for Functional 0-3 Nanocomposites and Magnetic Field Sensors / Björn Gojdka." Kiel : Universitätsbibliothek Kiel, 2012. http://d-nb.info/1028941226/34.

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Buse, Frank. "Neuartige poröse [alpha]-Al203-Werkstoffe [Alpha-Al-2-0-3-Werkstoffe] und- Membranen." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=967345081.

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Rode, Martin. "Die optischen Eigenschaften von YHx-Filmen (0 [= x [= 3) im Bereich der Phononenabsorption." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972155112.

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Beier, Claus Christian. "Das Z-0-Boson und die Strukturfunktion xF 3 in tiefinelastischer ep-Streuung." [S.l. : s.n.], 2000. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB8832578.

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Rosa, Emillyn. "O planejamento democrático e participativo Construído com crianças de 0 a 3 anos." Universidade Nove de Julho, 2015. http://bibliotecadigital.uninove.br/handle/tede/1212.

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Esta tesis tuvo como objeto de pesquisa la planificación democrática e participativa construída con niños de 0 a 3 años de edad, su objetivo fue analizar si es posible realizar una planificación colectiva con los niños; teniendo como objetivos específicos investigar cual es el concepto de niño que hace posible ese trabajo; y cuales son las estrategias que el professor puede utilizar para promoverlo. La pesquisa fue realizada en un círculo infantil municipal de Santo André – S.P (Brasil),en los momentos dedicados a la formación continua en horário de trabajo, denominada Reunión Pedagógica Semanal (RPS). Participaron seis profesoras, de estas, dos fueron observadas en sus prácticas y participaron de devoluciones individuales. Para discutir conceptos de niño e sus trayectória en la história y en la educaçión, fueron utilizados los autores: Priore (2013), Kramer (1995; 2006), Sarmento (2007; 2009), e Kuhlmann (2000). Los autores que dieron las bases para la planificación en la Educación Infantil fueron Ostetto (2015) e Redin (2013). Para la discusión sobre la escuela democrática, estudiamos los autores Freire (1996; 2001), Araújo (2002) e Romão & Padilha (1997). Para abordar la cuestión de la participación de los niños utilizamos la autora Oliveira – Formosinho (2007; 2013), entre otros. La metodologia es cualitativa de acuerdo con Severino (2007), Luke y André (1986) y basada en los conceptos de Freire (1996) de acción-reflexión-acción de las prácticas pedagógicas, teniendo una propuesta de pesquisa-intervención. Los análisis de datos fueron realizados de acuerdo con Franco (2012). La pesquisa obtuvo como resultado que la ejecución de una planificación democrática y participativa con niños de círculo infantil es posible y que para eso es necesario que el profesor conciba al niño como un sujeto capaz y con derechos, que también produce cultura, teniendo como procedimientos metodológicos acciones que permitan el desarrollo de la democracia, siendo ellos de elección y de participación, promoviendo la constante actuación de los niños como protagonistas.
This essay had as research objective the democratic and participative planning build with children from 0 to 3 years old, the main objective was to analyze if it is possible to realize a collective planning in association with the children; having as specific object to analyze which conception of children make this job possible; and what are the best strategy the teacher can use to promote it. The accomplish research was realized in a municipal school in Santo Andre/SP (Brazil), at times intended for continuing education in working hours, called the Week Educational Meeting (RPS). Was attended of 6 teachers, which two were observed in their practices and participated in individual fed back. To discuss child concepcions, their history and path in education, were used as base the following authors: Priore (2013), Kramer (1995; 2006), Sarmento (2007; 2009) and Kuhlmann (2000). The authors that gave basis to the planning in childhood education were Ostetto (2015) and Redin (2013). To a discusition about the democratic school, we studied the following authors Freire (1996; 2001), Araújo (2002) and Romão & Padilha (1997). To address the issue of children's participation used to author Oliveira – Formosinho (2007; 2013), among others. The methodology is qualitative according to Severino (2007), Luke and André (1986) and is based in the concepts of Freire (1996) action-reflection-action of educational doings, having a proposal for intervention research. Information analyzed were performed according to Franco (2012). The research had as result that the exection of a democratic and participatory planning with daycare children is possible, and it is mandatory that the teacher conceives the child as a capable and with rights person, which also produces culture, having as methodological procedures, actions that allow the development of democracy, namely choice and participation, promoting the constant performance of children as protagonists.
Esta dissertação teve como objeto de pesquisa o planejamento democrático e participativo construído com crianças de 0 a 3 anos de idade; seu objetivo foi analisar se é possível realizar um planejamento coletivo com as crianças; tendo como objetivos específicos investigar qual concepção de criança torna possível esse trabalho; e quais as estratégias que o professor pode utilizar para promovê-lo. A pesquisa foi realizada em uma creche municipal de Santo André – S.P (Brasil), nos momentos destinados à formação continuada em horário de trabalho, denominada Reunião Pedagógica Semanal (RPS). Contou com a participação de seis professoras, das quais duas foram observadas em suas práticas e participaram de devolutivas individuais. Para discutir concepções de criança e suas trajetórias na história e na educação, foram utilizados os autores: Priore (2013), Kramer (1995; 2006), Sarmento (2007; 2009), e Kuhlmann (2000). Os autores que deram o embasamento para o planejamento na Educação Infantil foram Ostetto (2015) e Redin (2013). Para a discussão sobre a escola democrática, estudamos os autores Freire (1996; 2001), Araújo (2002) e Romão & Padilha (1997). Para abordar a questão da participação das crianças utilizamos a autora Oliveira – Formosinho (2007; 2013), entre outros. A metodologia é qualitativa de acordo com Severino (2007), Luke e André (1986) e baseada nos conceitos de Freire (1996) de ação-reflexão-ação dos fazeres pedagógicos, tendo uma proposta de pesquisa-intervenção. As análises de dados foram realizadas de acordo com Franco (2012). A pesquisa obteve como resultado que a execução de um planejamento democrático e participativo com crianças de creche é possível, e que para isso se faz necessário que o professor conceba a criança como um sujeito capaz e de direitos, que também produz cultura, tendo como procedimentos metodológicos ações que permitam o desenvolvimento da democracia, sendo eles de escolha e de participação, promovendo a constante atuação das crianças como protagonistas.

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Fasolo, Daniel. "Nanoemulsões contendo quercetina e 3-0-metilquercetina : estudos de formulação e permeação cutânea." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10872.

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A atividade antiviral de compostos polifenólicos, especialmente flavonóides, tem sido extensivamente investigada. Neste contexto, diversos estudos têm como foco o efeito da quercetina (Q) e 3-O-metilquercetina (MQ) sobre o Vírus do Herpes Simplex (HSV) uma vez que eles são importantes patógenos humanos. O objetivo deste trabalho foi o desenvolvimento de nanoemulsões de uso tópico contendo os flavonóides Q e MQ. Primeiro, nanoemulsões compostas de octildodecanol, lecitina de gema de ovo (NE), brometo de cetil trimetilamônio – CTAB – (NEC), água e Q ou MQ foram preparadas através do procedimento de emulsificação espontânea. O procedimento conduziu à obtenção de nanoemulsões monodispersas (IP<0,2) com um diâmetro médio de gotícula de aproximadamente 200-300 nm, confirmado por microscopia eletrônica de transmissão. A viscosidade e a tensão superficial permanecem similares para as formulações NE e NEC, de aproximadamente 2 cP e 29 mN/m, respectivamente. O potencial zeta foi influenciado principalmente pela presença do tensoativo CTAB, sendo negativo para NE (-29 to -27 mV) e positivo para NEC (76 to 79 mV). Em uma segunda etapa, foi validado um método isocrático para a quantificação da Q e MQ por CLAE com detecção por UV em 368 e 354 nm. O método foi linear, preciso, exato e específico para a determinação da Q e MQ nas formulações. A quantidade dos flavonóides associada com as nanoemulsões foi de 100% (para 1 mg/mL). A reduzida solubilidade de Q e MQ no núcleo oleoso sugere a participação da lecitina na sua associação com as nanoemulsões. Em uma última etapa, foi realizado o estudo de permeação cutânea da Q e MQ a partir das formulações utilizando pele de orelha suína em células de difusão de Franz. Independente da formulação, foi demonstrado que a permeação da Q ou MQ é reduzida. Entretanto, existe um aumento significativo do fluxo de permeação dos flavonóides a partir das nanoemulsões NEC (~0,2 μg/cm2/h) comparado com NE (~0,08 μg/cm2/h), demonstrando o efeito da carga de superfície positiva da formulação NEC sobre este parâmetro. Os resultados também indicam o acúmulo de Q ou MQ na pele (maior que 250 μg/g) para ambas as formulações. Em conclusão, o conjunto dos resultados obtidos demonstra o efeito da composição das nanoemulsões sobre propriedades físico-químicas e perfil de permeação cutânea de Q e MQ a partir das nanoemulsões.
The antiviral activity of polyphenolic compounds, especially flavonoids, has been extensively investigated. In this context, several studies have been focused on the effect of quercetin (Q) and 3-O-methylquercetin (MQ) over Herpes Simplex Virus (HSV) since they are important human pathogens. The objective of the present work was the development of topical nanoemulsions containing the flavonoids Q and MQ. First, nanoemulsions composed by octyldodecanol, egg lecithin (NE), cetyl trimetylamonium bromide – CTAB – (NEC), water and either Q or MQ were prepared by spontaneous emulsification procedure. The procedure yielded monodisperse nanoemulsions (IP<0.2) with a typical mean droplet size of approximately 200-300 nm, confirmed for transmission electron microscopy. The viscosity and surface tension remained quite similar for both NE and NEC, approximately 2cP and 29mN/m, respectively. The ζ-potential was mainly influenced by the presence of the cationic surfactant CTAB, being negative for NE (-29 to -27mV) and positive for NEC (76 to 79mV). In the second step, it has been validated an isocratic method to quantify Q or MQ by HPLC with UV detection at 368 and 354nm. The method was linear, precise, accurate and specific for the determination of Q and MQ in formulations. The amount of flavonoids associated with nanoemulsions was close to 100 % (to 1mg/mL). The low solubility of Q and MQ in the oil core suggests the role of lecithin on their association with nanoemulsions. In a last step, the permeation of Q or MQ from formulations using ear pigskin mounted in Franz diffusion cells was performed. Whatever the formulation, it was shown that Q or MQ permeation rate was low. However, there was a significant increase of the flavonoids flow rate from NEC (~0.2μg/cm2/h) compared to NE (~0.08μg/cm2/h), showing the effect of the positively charged surface of NEC on this parameter. The results also indicate the accumulation of Q or MQ in the skin (higher than 230μg/g) for both formulations. In conclusion, the overall results show the effect of the nanoemulsion components on both physico-chemical properties of the nanoemulsions and Q or MQ skin permeation profile.

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Duarte, Larissa Jeremias. "Mecanismos moleculares envolvidos na atividade anti-inflamatória do composto pelargonidina-3-0-glicosídeo." reponame:Repositório Institucional da UFSC, 2017. https://repositorio.ufsc.br/xmlui/handle/123456789/179657.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmácia, Florianópolis, 2017
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Fragaria x ananassa Duch., conhecida como morango-de-jardim, é consumida mundialmente in natura ou na forma de sucos, geleias e iogurtes produzidos pela indústria alimentícia. Diversos estudos têm demonstrado que o morango pode ter importantes atividades biológicas, como antioxidante, anti-hipertensivo e também anti-inflamatório. Neste sentido, avaliamos o efeito anti-inflamatório do extrato dos frutos de Fragaria x ananassa e seu principal composto, a pelargonidina-3-O-glicosídeo (P3G), analisando seus efeitos na migração de leucócitos, níveis de exsudação, atividades da mieloperoxidase (MPO), adenosina desaminase (ADA), concentração dos metabólitos do óxido nítrico (NOx), fator de necrose tumoral-alfa (TNF-a) e de interleucina-6 (IL-6), utilizando o modelo da pleurisia induzida pela carragenina em camundongos. Também foi realizado um estudo in vitro para identificar a ação específica de P3G em proteínas cinases ativados por mitógeno (p38MAPK), cinase c-Jun N-terminal (JNKMAPK), fator de transcrição nuclear kappa B (NF-?B) e proteína ativadora-1 (AP-1). Para realização dos ensaios in vivo, os frutos congelados de morangos foram sonicados com 25 mL de metanol acidificado (HCl 1%) durante 75 minutos. Os extratos foram filtrados, e o solvente evaporado sob pressão reduzida até à secura produzindo o extrato bruto (EB). O composto majoritário presente no EB (P3G) foi utilizado nos experimentos, em forma de padrão obtido a partir de fonte comercial (Sigma-Aldrich, Co.). Em ambos os experimentos a dexametasona (Dex) foi utilizada como medicamento de referência anti-inflamatório. Na análise estatística, utilizou-se a análise de variância (ANOVA) seguida pelo teste post-hoc de Newman-Keuls. Valores de p < 0,05 foram considerados significativos. Os resultados apresentados neste estudo demonstraram que o EB e P3G foram capazes de reduzir todos os parâmetros inflamatórios avaliados no modelo da pleurisia induzida pela carragenina (p < 0,05) e também na cultura celular de macrófagos murinos induzidos por lipopolissacarídeo (LPS) (p < 0,01), com exceção para a P3G, que não causou inibição na fosforilação da p38MAPK. Além disso, foi demonstrado que o mecanismo molecular desse efeito, envolve a inibição da ativação de IkB-a (p < 0,05) e a redução da fosforilação de JNKMAPK (p < 0,01). Esses efeitos levaram a uma redução da ativação do NF-?B (p < 0,05) e do AP-1 (p < 0,001), dois fatores de transcrição de destaque na cascata inflamatória desencadeada pela ativação do receptor de membrana Toll-like tipo 4 (TLR4). Esses resultados sugerem que o composto testado é um potencial candidato para o desenvolvimento de agentes anti-inflamatórios para utilização em patologias nas quais essa via exerce um papel de destaque.

Abstract: Fragaria x ananassa Duch., known as garden strawberry, is worldwide consumed in natura or in the form of juices, jams or yogurts produced by the food industry. Studies have shown that strawberry may have important biological activities, such as antioxidant, anti-inflammatory and antihypertensive. We therefore evaluated the anti-inflammatory effect of Fragaria x anannassa fruit extract and its major compound, pelargonidin-3-O-glucoside (P3G), analyzing its effect on leukocyte migration, exudation levels, myeloperoxidase (MPO), adenosine deaminase (ADA) activities and nitric oxide (NOx), tumoral necrosis factor (TNF-a) and interleukin 6 (IL-6) levels, using an in vivo murine model of pleurisy. We also have carried out an in vitro study to identify the specific action of P3G in p38 mitogen-activated protein kinase (p38MAPK), c-Jun N-terminal kinase (JNKMAPK), nuclear transcript factors ?B (NF- ?B) and activated protein 1 (AP-1). To this end, the plant material was subjected to extraction. Briefly, frozen fruits of strawberry were sonicated with 25 mL of acidified (HCl 1%) methanol for 75 minutes. The extracts were filtered, and the solvent evaporated under reduced pressure to dryness yielding the crude extract (CE). The major compound present in CE (P3G) was used in our experiments as a standard obtained from commercial source (Sigma-Aldrich, Co.). In in vivo experiments, all inflammatory parameters were assessed 4 hours after pleurisy induction. In all of these work procedures, dexamethasone (Dex 0.5 mg / kg, p.o.) was used as anti-inflammatory reference drug. In in vitro experiments, the inflammatory parameters were measured by Western Blot, also using dexamethasone as reference drug (Dex 7 µM). For statistical analysis, we used the analysis of variance (ANOVA) followed by Newman-Keuls post-hoc test. P values < 0.05 were considered significant. The results presented in our study demonstrated that the crude extract (CE), and P3G are able to reduce the inflammatory parameters evaluated in the murine model of pleurisy (p < 0,05), and also in the cell culture of murine macrophages (p < 0,01), except for P3G, that did not cause inhibition in p38MAPK phosphorylation. Moreover, we demonstrated that the molecular mechanism of this effect involves the arrest of IkB-a activation (p < 0,05) and reduction in JNKMAPK phosphorylation (p < 0,01). These effects lead to a reduction in NF-?B (p < 0,05) and AP-1 activation (p < 0,001) of the transcription factors conductors of the inflammatory pathway triggered by the activation of TLR4. These results suggests that the tested compound is a potential candidate for a development of anti-inflammatory agent to treat diseases in which this pathway exerts a pivotal role.

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Rouillon, Astrid. "Regulation transcriptionnelle par le complexe ubiquitine ligase scf m e t 3 0." Paris 11, 2000. http://www.theses.fr/2000PA112112.

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L'expression des genes du metabolisme des acides amines soufres chez la levure saccharomyces cerevisiae est soumise a une regulation negative specifique : la transcription de ces genes (genes met) est reprimee lorsque la concentration intracellulaire de s-adenosylmethionine (sam) augmente. Dans ce systeme, un activateur transcriptionnel unique (met4) est recrute par plusieurs complexes multiproteiques sur les regions amont des genes co-regules. Ces complexes associent met4 aux facteurs cbf1, met28, met31 et/ou met32. Lorsque nous avons debute ce travail, met30 etait le seul facteur connu implique dans la regulation negative du systeme. Notre etude a permis de montrer que l'arret de transcription des genes met necessite l'action coordonnee des proteines met30, skp1, cdc53 et cdc34. Cdc34 est une enzyme de conjugaison de l'ubiquitine ; les proteines met30, skp1 et cdc53 forment un complexe ubiquitine ligase appele scf m e t 3 0. Nous avons montre que l'augmentation de la concentration intracellulaire de sam entraine l'ubiquitination de la proteine met4 par le complexe scf m e t 3 0, met4 etant ensuite adressee vers le proteasome 26s puis degradee. Le mode de fonctionnement du complexe scf m e t 3 0 est different de celui des deux autres complexes scf identifies chez la levure. Au contraire des complexes scf c d c 4 et scf g r r 1 ou la reconnaissance de la proteine cible declenche son ubiquitination, la reconnaissance de la proteine met4 par le complexe scf m e t 3 0 n'est pas le determinant de l'ubiquitination de met4. En effet, nous avons montre que l'interaction entre les proteines met4 et met30 est constitutive. Cette etude a egalement mis en evidence l'implication de la proteine met4 est impliquee dans la transcription du gene met30. Met4 est donc a l'origine de la synthese de la proteine qui induit sa degradation. Par ailleurs, nous avons montre que le role essentiel de la proteine met30 est la regulation des fonctions d'activation de la proteine met4.

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40

Bylund, Martin. "E, F, G eller 0, 1, 3 : En studie av gitarrlärare på Youtube." Thesis, Linnéuniversitetet, Institutionen för musik och bild (MB), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96717.

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Gitarren delar ett problem men andra stränginstrument såsom fiolen – samma ton i samma oktav kan ofta produceras på flera olika ställen på greppbrädan. Gitarrens bandförsedda greppbräda möjliggör även att göra det utan att det behöver vara mer speltekniskt krävande. Å andra sidan innebär det att gitarristen måste fatta beslut om var på greppbrädan en viss ton ska spelas, eller att de medierande redskap, vilka används för att mediera musik, måste förtydliga var på greppbrädan fingrarna ska placeras. Föreliggande studie har genomförts med syfte att belysa vilken kunskap som framstår som viktig för gitarrister och vilken lärarens roll är i YouTube-lektioner. Det gjordes genom en tematisk analys med en sociokulturell ansats. Tre YouTube-gitarrlärares lektioner analyserades och mönster beträffande vilka medierande redskap de använde sig av hittades och delades in i temana musikteoretiska begrepp, orientering på greppbrädan, tekniska färdigheter samt lärarroll. Resultatet visar att musikteoretiska begrepp framstår som viktig kunskap för gitarrister men att fingrarnas placering på greppbrädan, alltså orienteringen på greppbrädan, medieras genom andra redskap såsom siffror (och tabulatur), ackorddiagram och mönster. Det tydliggjordes att de tekniska färdigheterna plektrumteknik, fingerrörelser på greppbrädan och snabbhet framstår som viktigt. Lärarnas roll tycks vara att mediera redskap, vilka de lärande kan använda sig av i sitt musicerande. Hur de här redskapen ska användas i musicerandet verkar dock approprieras i andra sociala sammanhang.
The guitar as an instrument shares a problem with other stringed instruments such as the violin – the same note in the same octave can often be produced in various positions on the fingerboard. The fretted fingerboard of the guitar makes it possible to play the note in different positions without it being more demanding in terms of skill, which leads to the need for the guitarist to make decisions as to where on the fretboard to play the note, or else for the mediating tools used to mediate music to specify where the fingers should be placed. This study was conducted in order to bring to light, what knowledge appears to be important to guitarist and what the teacher’s roll in YouTube tutorials is. This was done through a thematic analysis with a sociocultural approach. Patterns regarding which mediating tools are used by three YouTube guitar teachers were found and divided into the themes music theory terms, fretboard orientation, technical abilities and the roll of the teacher. The results show that music theory terms appear to be important knowledge for guitar players but that the placement of the fingers on the fretboard, in other words the fretboard orientation, is mediated through other tools such as numbers (and tablature), chord charts and patterns. It became evident that the technical abilities picking, finger movement on the fretboard and speed appear to be important. The teachers roll appears to be mediating tools which the learners can use in their musicianship. How to use these tools however seems to be appropriated in other social contexts.

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41

Engh, Marcel. "Popstars als Marke identitätsorientiertes Markenmanagement für die musikindustrielle Künstlerentwicklung und -vermarktung /." Wiesbaden : Deutscher Universitäts-Verlag, 2006. http://dx.doi.org/10.1007/3-8350-5703-0.

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42

Erdogan, Huriye. "In-situ Generation Of Poly(n-vinyl-2-pyrrolidone)-stabilized Palladium(0) And Ruthenium(0) Nanoclusters As Catalysts For Hydrogen Generation From The Methanolysis Of Ammonia-borane." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611847/index.pdf.

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More attention has been paid to find new type renewable energy sources because of increasing concern about the environmental problems arising from the combustion of fossil fuels as energy sources. The development of new storage materials will facilitate the use of hydrogen as a major energy carrier. Several possibilities exist for &lsquo
&lsquo
solid-state&rsquo
&rsquo
storage: the hydrogen can be trapped in metal organic frameworks, carbon nanotubes and certain alloys
or one can use materials in which hydrogen is already present in the composition (e.g., chemical hydrides). The latter option seems to be the most promising since it permits a higher mass ratio of hydrogen. Recently, ammonia-borane complex (NH3BH3, AB) has been considered as solid hydrogen storage material since it possess one of the highest hydrogen contents (19.6 wt. %) and high stability under the moderate conditions. Hydrolysis and methanolysis are the two reactions liberating hydrogen from AB. However, a catalyst is needed for hydrogen generation from methanolysis of AB. In this context, we aim to develop PVP-stabilized palladium(0) and ruthenium(0) nanoclusters as catalyst for the methanolysis of AB. The PVP-stabilized palladium(0) and ruthenium(0) nanoclusters were prepared from the in-situ reduction of palladium(II) acetylacetonate and ruthenium(III) chloride respectively in the methanolysis of AB. The prepared palladium(0) nanoclusters were isolated as solid materials by removing the volatile in vacuum and characterized by using TEM, SAED, XPS, FT-IR, XRD and UV-visible electronic absorption spectroscopy techniques while and ruthenium(0) nanoclusters were characterized by TEM, XPS, XRD, FT-IR and UV-visible electronic absorption spectroscopy techniques. The kinetics of methanolysis of AB catalyzed by palladium(0) and ruthenium(0) nanoclusters were studied depending on the catalyst concentration, substrate concentration and temperature. The activation parameters of the catalytic methanolysis reaction obtained from the evaluation of kinetic data.

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43

Feng, Patrick Lulick. "Quantum magnetic phenomena in 0-D through 3-D MnIII₃-based single-molecule magnets." Diss., [La Jolla] : University of California, San Diego, 2010. http://wwwlib.umi.com/cr/ucsd/fullcit?p3389021.

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Thesis (Ph. D.)--University of California, San Diego, 2010.
Title from first page of PDF file (viewed February 12, 2010). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

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44

Ventura, Luísa Cristina dos Santos Bertão. "CRESCER ILHÉU ! Os Enfermeiros e os Hábitos Alimentares das Crianças dos 0-3 anos." Dissertação, Instituto de Ciências Biomédicas Abel Salazar, 2008. http://hdl.handle.net/10216/19401.

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45

Schwingel, Liege Cassia. "Associação da 3-0-metilquercetina com beta-ciclodextrina : avaliação da complexação e penetração cutânea." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/11095.

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No presente trabalho foi realizado o isolamento da 3-O-metilquercetina, a partir de produto seco do extrato de inflorescências de Achyrocline satureioides, e sua caracterização. Em etapa farmacotécnica, foi realizado o estudo da associação deste flavonóide com b-ciclodextrina, bem como testes preliminares de permeação cutânea das associações, incorporadas ou não em gel de hidroxipropilmetilcelulose. As técnicas espectroscópicas, infravermelho e ressonância magnética de hidrogênio, confirmaram a estrutura do flavonóide isolado. Para o doseamento da 3-Ometilquercetina, realizou-se a validação de metodologia analítica por cromatografia líquida de alta eficiência, obtendo-se linearidade, na faixa de concentração de 0,05 a 1,5 μg/mL, precisão e exatidão adequadas. A análise da associação da 3-Ometilquercetina com b-ciclodextrina por infravermelho, ressonância magnética de hidrogênio e a análise pelo método empírico de Mecânica Molecular (MM2) do software Chem3D Ultra (Versão 9.0, CambridgeSoft) indicam possível inclusão do anel B da 3-O-metilquercetina na cavidade da b-ciclodextrina, sendo a inserção do flavonóide pela borda das hidroxilas secundárias mais favorável do que pela borda das hidroxilas primárias. A b-ciclodextrina e o gel de hidroxipropilmetilcelulose promoveram a permeação do flavonóide através da pele. A realização de ensaios in vivo para a seleção da melhor formulação constitui-se na principal perspectiva de continuidade de investigação científica do tema.
3-O-methylquercetin (3-OMQ) was isolated from spray dried powder of Achyrocline satureioides and characterized by IR and 1H NMR. The study of association of this flavonoid with b-cyclodextrin (bCD) was performed, as well as preliminary skin permeation tests of these associations, incorporated or not in hydroxypropyl methylcellulose (HPMC) hydrogel. A LC method for 3-OMQ assay was validated in the concentration range from 0.05 to 1.5 μg/mL, with suitable precision and accuracy. The complexation of 3-OMQ with bCD was analyzed by IR, 1H NMR and Molecular Mechanics (Chem3D Ultra 9.0, CambridgeSoft) and the results indicated the possible insertion of B ring of the flavonoid into the bCD cavity, being the insertion through the secondary OH rim more favorable than through the primary OH rim. bCD and HPMC promoted the permeation of the flavonoid through the skin. In vivo assay is required to select the appropriate formulation.

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FERREIRA, JEAN-PAUL. "Synthese convergente du squelette taxoide tetramethyltricyclo (9. 3. 1. 0. 3,8) pentadecane (doctorat : pharmacochimie)." Paris 11, 1998. http://www.theses.fr/1998PA114809.

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47

Källström, Pontus. "Heteronormer i queera barnböcker - En bilderboksanalys av förlaget Olikas pridepaket för 0-3 åringar." Thesis, Malmö universitet, Fakulteten för lärande och samhälle (LS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-29134.

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Syftet med denna studie är att undersöka hur kön, genus och sexualitet framställs i förlaget Olikasbarnböcker som ingår i vad förlaget kallar Pridepaketet. Tidigare forskning har visat att barnböckerbåde upprätthåller och avviker från rådande normer kring kön, genus och sexualitet och att vuxnai större grad än barn följer genuskodade mönster i karaktärsskildringarna. Genom enbilderboksanalys och med ett queerteoretiskt perspektiv har studien undersökt på vilka sättbarnböckerna i förlaget Olikas pridepaket bryter och upprätthåller normer kring kön, genus ochsexualitet. Analysen är gjord på två bilderböcker och en pekbok ur Olikas pridepaket för barnmellan 0-3 år. Resultatet visar på att pridepaketet följer ett mönster där bara mammor kan ses vararepresenterade i böckerna och inga pappor. Ett annat mönster som upptäckts i studien är atthomosexualitet normaliseras i texten men att mammornas sexualitet kan ha påverkat hur kvinnornaframställs i bilderna. Studien visar också att de studerade barnböckerna kan ses framställasamkönade förhållanden som en parrelation vilket kan kopplas till normen om att leva i entvåsamhet; som är en del utav heteronormativiteten. Barnen i pridepaketets böcker framställs docksom mindre tydligt könade än de vuxna karaktärerna.

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Ventura, Luísa Cristina dos Santos Bertão. "CRESCER ILHÉU ! Os Enfermeiros e os Hábitos Alimentares das Crianças dos 0-3 anos." Master's thesis, Instituto de Ciências Biomédicas Abel Salazar, 2008. http://hdl.handle.net/10216/19401.

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Hao, Yalin. "Continuous Hydrothermal Production of Iron Oxide (Fe[subscript 2]0[subscript 3]) and Cobalt Oxide (Co[subscript 3]O[subscript 4])." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/11217.

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Murakami, Masaaki. "Minimal algebraic surfaces of general type with c_1^2=3, p_g=1 and q=0, which have non-trivial 3-torsion divisors." 京都大学 (Kyoto University), 2002. http://hdl.handle.net/2433/149951.

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Dissertations / Theses on the topic 'Blueprint A 3.0'

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