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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Superfícies de curvatura média constante em H² x R

Soares, Rodrigo Barbosa January 2012 (has links)
Neste trabalho apresentamos resultados de existência e unicidade para gráficos de curvatura média constante em H² x R, com bordo prescrito em planos paralelos, obtidos através da resolução de problemas de Dirichlet para a equação da curvatura média. / In this work we investigate the existence and uniqueness of constant mean curvature graphs in H² x R, with boundary in parallel planes, by solving a Dirichlet problems for the mean curvature equation.
12

Gráficos parabólicos de curvatura média constante em H3 com bordo prescrito satisfazendo a condição da declividade limitada

Mathias, Carmem Vieira January 2009 (has links)
Neste trabalho, investigamos a existência e unicidade de gráficoscos parabólicos de curvatura média constante H em H³ cujo bordoé dado a priori, sobre hipóteses que relacionam H com a geometria do domínio e uma condição sobre o dado no bordo, que por analogia com um problema similar para gráficos em R³, a denominamos condição de declividade limitada. / In this work, we investigate the existence and uniqueness of parabolic graphs of constant mean curvature H in H³ whose boundary is given a priori, under hypothesis relating H with the geometry of the domain and a condition on the boundary data that, by anal- ogy with a similar problem for vertical graphs in R³, we denominated it by bounded slope condition.
13

Epaisseur intima-média de l'artère carotide chez l'adolescent : relations avec les facteurs de risque cardiovasculaire ou liés au style de vie : étude ancillaire de HELENA-CSS / Carotid intima-media thickness in adolescence : relations with cardiovascular risk factors or related to lifestyle : ancillary study of Helena-CSS

Lamotte, Christophe 23 September 2011 (has links)
L’augmentation de l’épaisseur intima-média carotidienne (EIMc) est associée aux facteurs de risque d’athérosclérose ainsi qu’à une augmentation du risque coronaire et cérébral chez l’adulte. L’EIMc a déjà été mesurée chez des enfants et adolescents présentant des affections associées à une augmentation du risque cardiovasculaire, les relations entre l’EIMc et les facteurs de risque traditionnels ou liés au style de vie ont cependant été peu étudiées chez des adolescents issus d’une population générale. Notre objectif a été d’étudier les facteurs déterminants de l’EIMc chez l’enfant et/ou l’adolescent.1: Nous avons réalisé une revue systématique de la littérature concernant la mesure de l’EIMc dans des populations pédiatriques présentant des facteurs de risque cardiovasculaire. 65 articles (67 études citées) ont été revus, publiés de 1986 à 2010, concernant des études cas-témoins réalisées chez des enfants et/ou adolescents présentant les affections suivantes: obésité, diabète de type 1, dyslipidémies, hypertension artérielle, insuffisance rénale chronique. Les études analysées ont inclus 3692 patients et 2623 témoins âgés en moyenne de 6.4 à 17.6 ans. Les méthodes de mesure de l’EIMc ont varié selon les études. Une augmentation significative de l’EIMc a été observée dans 22 études/26 chez les sujets obèses comparés aux témoins, dans 8 études/14 chez les patients diabétiques de type 1, 10 études/11 chez les patients dyslipidémiques, 7 études/8 chez les patients hypertendus et 8 études/8 chez les patients insuffisants rénaux. L’absence d’augmentation significative de l’EIMc dans certaines études chez les diabétiques a été expliquée par la courte durée d’évolution de la maladie (5.1 ans), le jeune âge des patients, le bon équilibre métabolique. Malgré l’hétérogénéité des méthodes de mesure, l’EIMc a été significativement augmentée dans 55/67 études citées confirmant la présence de modifications précoces de la paroi artérielle carotidienne dans les populations pédiatriques à risque cardiovasculaire accru.2:Objectif: Nous avons étudié chez des adolescents de la métropole lilloise les relations entre l’EIMc et les facteurs anthropométriques, biologiques et liés au style de vie (statut socioéconomique, activité physique, nutrition) pouvant influer sur le risque cardiovasculaire. Matériel et méthodes: Ce travail est une étude ancillaire de HELENA-CSS (Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study), laquelle analyse dans une population d’adolescents européens des données relatives à la santé, au style de vie et au statut nutritionnel. L’échantillon a été constitué de 319 adolescents (135 garçons et 184 filles) âgés de 12 à 17.5 ans. Les mesures de l’EIMc et du diamètre carotidien des deux côtés ont été effectuées en utilisant une sonde échographique linéaire de 7.5MHz, à l’aide d’un logiciel de détection semi-automatique des contours. Le poids, la taille, les tours de taille et de hanche, les plis cutanés, la pression artérielle ont été mesurées, et un prélèvement sanguin réalisé chez 29.8% des volontaires. Les rapports poids (kg)/taille (m) 2 (IMC), IMC z-score, tour de taille/tour de hanche, plis sous-scapulaire + suprailiaque/plis sous-scapulaire + suprailiaque + bicipital + tricipital (PT/∑4 plis) ont été calculés. Le stade pubertaire a été évalué selon la méthode de Tanner, le statut socioéconomique par le niveau maternel d’éducation et l’échelle de richesse de la famille FAS 4 (family affluent scale). Les concentrations sériques de cholestérol total, HDL et LDL, triglycérides, glucose, CRP-us, sICAM-1, sVCAM-1 et sE-sélectine ont été mesurées. Le fitness cardiorespiratoire a été mesuré indirectement par le test de course navette, et l’activité physique évaluée objectivement par l’intermédiaire d’un accéléromètre. / . Some studies suggested that lifestyle related factors such as physical activity, nutrition and socioeconomic status could influence the cardiovascular risk. An increased carotid intima-media thickness (cIMT) is associated with atherosclerosis risk factors and with an increased risk of coronary heart disease and stroke in adults. cIMT was measured before in children and adolescents with some diseases associated with an increased cardiovascular risk, but the relations between cIMT and the traditional risk factors or related to lifestyle were scarcely studied in adolescents from a general population. Our aim was to study the cIMT predictors in children and/or adolescents.1: We performed a literature systematic review about cIMT measurement in pediatric populations with cardiovascular risk factors. 65 papers (67 cited studies) were reviewed, published from 1986 to 2010, about some case-control studies performed in children and/or adolescents with the following diseases: obesity, diabetes type 1, dyslipidemia, hypertension, chronic renal failure. The analyzed studies included 3692 patients and 2623 controls with mean ages from 6.4 to 17.6 years. The measurement methods varied according to the studies. A significant increased cIMT was observed in 22 studies/26 in obese children compared to controls, 8 studies/14 in diabetic type 1 patients, 10 studies/11 in dyslipidemic patients, 7 studies/8 in hypertensive patients and 8 studies/8 in chronic renal failure patients. The non significant increased cIMT in some studies in diabetic patients was explained by the short median duration of the disease, the young age of the patients or the good metabolic control of the disease. In spite of the heterogeneity of the measurement methods, the cIMT was significantly increased in 55/67 cited studies confirming the early carotid artery damages in pediatric populations with an increased cardiovascular risk.2: Aim: We studied in adolescents from Lille metropolis the relations between cIMT and the anthropometric, biologic and lifestyle factors that may influence the cardiovascular risk. Material and methods: This work is an ancillary study of HELENA-CSS (Healthy Lifestyle in Europe by Nutrition in Adolescence Cross-Sectional Study), which analyzes in a population of European adolescents some data related to health, lifestyle and nutritional status. The sample comprised 319 adolescents (135 boys et 184 girls) aged from 12 to 17.5 years. The cIMT and carotid diameter measurements were performed on both sides, using a 7.5MHz linear probe, with the help of a semi-automatic edges detection soft. Weight, height, waist and hip circumferences, skinfolds, blood pressure were measured, and a blood sample was drawn in 29.8% of the adolescents. BMI, BMI z-score, waist/hip, subscapular + suprailiac skinfolds/ subscapular + suprailiac + bicipital + tricipital skinfolds (TSKF/∑4 skinfolds) were calculated. The pubertal stage was assessed according to the Tanner’s method, the socioeconomic status by the maternal education level and the family affluence scale (FAS 4).
14

Analýza reklamní strategie firmy Záruba M&K

Chasáková, Alena January 2008 (has links)
No description available.
15

Vliv reklamních kampaní kosmetických výrobků na nákupní chování spotřebitele

Zapletalová, Jana January 2013 (has links)
No description available.
16

Pares de codazzi em superfícies de variedades homogêneas

Gimarez, Welinton de Oliveira 12 December 2016 (has links)
Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Exatas, Departamento de Matemática, 2016. / Submitted by Camila Duarte (camiladias@bce.unb.br) on 2017-02-06T15:01:44Z No. of bitstreams: 1 2016_WelintondeOliveiraGimarez.pdf: 968504 bytes, checksum: 57ca38e5851366c63ad194d3fdd2fedf (MD5) / Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2017-03-09T14:07:13Z (GMT) No. of bitstreams: 1 2016_WelintondeOliveiraGimarez.pdf: 968504 bytes, checksum: 57ca38e5851366c63ad194d3fdd2fedf (MD5) / Made available in DSpace on 2017-03-09T14:07:13Z (GMT). No. of bitstreams: 1 2016_WelintondeOliveiraGimarez.pdf: 968504 bytes, checksum: 57ca38e5851366c63ad194d3fdd2fedf (MD5) / Neste trabalho apresentamos um estudo de pares de Codazzi em superfícies de variedades homogêneas tridimensionais. Inicialmente, apresentamos um resultado abstrato para pares de Codazzi em superfícies completas com curvatura Gaussiana não-positiva e o aplicamos para obter resultados do tipo Efimov e Milnor para superfícies completas nas formas espaciais não- Euclidianas. Para superfícies de espaços produto, a técnica de pares de Codazzi é utilizada na apresentação de um resultado do tipo Liebmann para superfícies completas com curvatura Gaussiana constante. Nos espaços homogêneos E(k; t ); com t ≠ 0; apresentamos um par de Codazzi definido sobre superfícies de curvatura média constante, cuja sua (2; 0)-parte é a diferencial de Abresch-Rosenberg. / In this work, we present a study of Codazzi pairs on surfaces of 3-dimensional homogeneous manifolds. Initially, we present an abstract result about Codazzi pairs on complete surfaces with non-negative Gauss curvature and we apply it to obtain Efimov and Milnor's type results for complete surfaces in non-Euclidian space forms. For surfaces in product spaces, the technique of Codazzi pairs is applied in the presentation of a Liebmann's type result for complete surfaces with constant Gaussian curvature. In the homogeneous spaces E(k; t ); with t ≠ 0, we present a Codazzi pair defined on surfaces with constant mean curvature, whose (2; 0)-part is the Abresch- Rosenberg difierential.
17

Caracterização dos condomínios horizontais fechados de classe média sob a ótica do transporte : um estudo de caso no Distrito Federal / Middle class horizontal private condominiums characterization under the optics of transportation : a study of case in Distrito Federal

Barros, Ingrid Marise Batista 05 October 2012 (has links)
Dissertação (mestrado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Civil e Ambiental, Programa de Pós-Graduação em Transportes, 2012. / Submitted by Alaíde Gonçalves dos Santos (alaide@unb.br) on 2013-03-20T11:04:54Z No. of bitstreams: 1 2012_IngridMariseBatistaBarros.pdf: 1912882 bytes, checksum: ac1168926b2b26fc9854665d4b5508ea (MD5) / Approved for entry into archive by Guimaraes Jacqueline(jacqueline.guimaraes@bce.unb.br) on 2013-03-20T15:16:55Z (GMT) No. of bitstreams: 1 2012_IngridMariseBatistaBarros.pdf: 1912882 bytes, checksum: ac1168926b2b26fc9854665d4b5508ea (MD5) / Made available in DSpace on 2013-03-20T15:16:55Z (GMT). No. of bitstreams: 1 2012_IngridMariseBatistaBarros.pdf: 1912882 bytes, checksum: ac1168926b2b26fc9854665d4b5508ea (MD5) / O presente trabalho busca a relação entre o comportamento dos moradores de condomínios horizontais fechados e a crescente dependência de automóveis. O estudo foi realizado por meio de pesquisa qualitativa aplicada em dois condomínios localizados em Brasília-DF. A fragmentação da cidade tem levado a novas configurações urbanas, dando surgimento aos condomínios horizontais fechados, financiados pela crescente classe média do país, estes empreendimentos residenciais estão relacionados com as cidades rodo-dependentes. O estudo buscou relacionar o comportamento de moradores de condomínios horizontais fechados e as diversas atividades sociais e econômicas desempenhadas cotidianamente por esta classe e como estas relações afetam os deslocamentos. Após a coleta de são reveladas as análises que apontam para tal fenômeno. _______________________________________________________________________________________ ABSTRACT / The following project seeks the relation between the behavior of condominium dwellers and their growing dependence on vehicles. The study was made through a qualitative research applied in a condominium which offers public transportation and other one which doesn’t, looking for their interactions. The fragmentation of the city has taken to new urban configurations, bringing the beginning to condominiums, which end up reinforcing the highway-dependent cities. The study sought to connect the condominium dwellers with the various economic and social activities that happen daily. After the collect of data, the analyses that show this fact will be revealed.
18

O civilismo das camadas medias urbanas na Primeira Republica brasileira

Saes, Décio, 1942- 11 August 2018 (has links)
Orientador: Michel Maurice Debrun / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciencias Humanas / Made available in DSpace on 2018-08-11T04:52:11Z (GMT). No. of bitstreams: 1 Saes_Decio_M.pdf: 3444468 bytes, checksum: 88384f8f912523eac8688d9767155dc4 (MD5) Previous issue date: 1971 / Resumo: Não informado / Abstract: Not informed. / Mestrado / Mestre em Ciências Humanas
19

Odposlechy - věc veřejná? Zveřejňování policejních odposlechů v médiích. / Interception - a public issue? Publishing the records of police in mass media

Janoušek, Milan January 2015 (has links)
The focus of my thesis is the issue of publishing police wiretaps in mass media. The work is divided into four parts. The first part deals with the role of mass media in today's society and its influence on politics and democracy. All of which from a media studies point of view. It also focuses on infotainment as I consider publishing wiretaps as one of the most significant manifestation of this growing trend. The second part explores mass media from a legal point of view. It describes the current state of media legislation and self-regulation. Basic terminology and the rights and responsibilities of journalists are defined in the chapter. Using the test of proportionality, it explains how courts decide when the freedom of expression and the right to privacy collide. Decisions of the Czech Constitutional Court and the European Court of Human Rights are frequently cited in the work for a better understading of the issue. The third part is an analysis of various aspects of police wiretapping pursuant to the Criminal Procedure Code. Apart from legislation, it describes the practical aspects of wiretaps handling. File leak prevention is also discussed in the chapter. The fourth, yet the most original, part of the thesis is an analysis of two cases where wiretaps were published without consent during the...
20

Valuing social media / Mesurer la valeur des médias sociaux

Colicev, Anatoli 06 July 2016 (has links)
Cette thèse se donne donc pour objectif d’estimer la valeur des médias sociaux pour les entreprises. Elle développe une série d’analyses théoriques portant sur les effets que peuvent avoir ces médias sur leurs performances. Elle suggère également aux gestionnaires et aux praticiens différentes façons d’exploiter leur présence sur les médias sociaux pour tirer un profit maximal des avantages que cette présence suscite. Des méthodes quantitatives comme la modélisation par équations structurelles, l’analyse des séries temporelles et les panels dynamiques sont mises en pratiques pour aborder le sujet de façon empirique et exhaustive. Afin d’atteindre ces objectifs, cette thèse soulève un certain nombre de questions de recherche : Les médias sociaux sont-ils créateurs de valeur pour les entreprises ? Quels effets ont les médias sociaux sur les marques, les consommateurs, les investisseurs ? Quels indicateurs sont essentiels pour mesurer la performance des médias sociaux ? Nous nous proposons de répondre à ces questions dans cette thèse qui s’organise en quatre articles distincts.L’article 1 développe plusieurs analyses théoriques dont l’objectif est de comprendre comment les indicateurs de médias sociaux affectent la valeur des marques.L’article 2 aborde la pertinence des médias sociaux sous un angle différent. Nous y analysons les trajectoires de l’impact des médias sociaux sur les consommateurs puis sur les investisseurs, ainsi que les explications de cet impact.L’article 3 se focalise plus particulièrement sur la relation entre les médias sociaux et le comportement du consommateur. Les effets des médias sociaux owned et earned sur les étapes séquentielles qui composent le parcours d’achat du consommateur y sont analysés, avec pour objectif de donner un meilleur aperçu de l’influence des médias sociaux sur la décision d’acheter et sur la satisfaction du consommateur.Enfin, l’article 4 se place dans le prolongement de l’article 1 pour étudier l’effet des médias sociaux et traditionnels sur la satisfaction des consommateurs et la valeur de marque. / This dissertation focuses on assessing the value of social media. There are several theoretical and practical gaps in the stream of social media marketing literature, particularly in terms of the impact of social media on performance. This dissertation proposes a set of theoretical conceptualizations of how social media can impact performance, makes suggestions for managers and practitioners on how to leverage the social media presences in pursuit of the benefits of social media marketing, and makes recommendations for researchers on how to further contribute to this research domain. Quantitative methods such as structural equation modeling, time-series analysis and dynamic panel methods are applied to address the issue empirically and comprehensively.

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