Made available in DSpace on 2014-08-20T13:59:14Z (GMT). No. of bitstreams: 1 tese_fabiano_simoes.pdf: 1352147 bytes, checksum: bbf5158765549e6f666c328bf1d547a9 (MD5) Previous issue date: 2011-04-29 / The knowledge of physiological processes during both dormancy and vegetative growth is important for adaptation processes in temperate zone woody angiosperms, especially in water management by those plants. The objectives of this work were to evaluate the water content and carbohydrate metabolism during the progress of dormancy in pears, to evaluate strategies of water use in two woody species (apple and walnut), which were subjected to three different levels of water deficit, and also to evaluate reliability of air injection technique to induce cavitation in three woody angiosperms. The first experiment was conducted during autumn and winter of 2008 in Brazil, and it was used plants of pears cultivars Packham's Triumph and Housui. The second study was carried out during the summer season of 2009 in France, with apple and walnut trees under water stress. The third experiment was done in France in 2009, and three species of woody angiosperms with different lengths of xylem were used Betula pendula, Prunus persica and Quercus robur. From the results it was concluded that the water content in tissues might be a marker of dormancy progression for cv. Packham's Triumph. However, the data were not conclusive and clear in cv. Housui. Stomatal closure might be an important parameter for preventing xilemian cavitation in walnut and apple trees subjected to soil water deficit. Apple trees stomata grown under severe drought regime remained partially open, indicating a greater tolerance of this species to drought in comparison to walnut. Finally, the double-ended pressure sleeve technique is reliable for species with diffuse-porous xylem by using short chambers and also branches longer than the xylem vessels. / O conhecimento dos processos fisiológicos, tanto na fase de repouso quanto no desenvolvimento vegetativo, é importante na adaptação das angiospermas lenhosas de clima temperado, especialmente na questão da gestão da água pela planta. Os objetivos deste trabalho foram avaliar o conteúdo da água e o metabolismo de carboidratos durante o progresso da dormência em pereiras, avaliar estratégias do uso da água em duas espécies lenhosas (macieira e nogueira), que foram submetidas a três níveis de déficit hídrico, e por fim, avaliar a confiabilidade da técnica de injeção de ar para indução à cavitação em três espécies de angiospermas lenhosas. No primeiro experimento, conduzido durante o outono e inverno de 2008 no Brasil, utilizou-se plantas de pereira cultivares Housui e Packham´s Triumph. O segundo experimento foi desenvolvido na França durante o verão de 2009, com macieiras e nogueiras sob estresse hídrico. O terceiro experimento foi conduzido na França em 2009 com três espécies de angiospermas lenhosas com diferentes comprimentos dos vasos do xilema, Betula pendula, Prunus persica e Quercus robur. A partir dos resultados concluiu-se que o conteúdo de água nos tecidos pode ser um marcador do progresso da dormência para cv. Packham s Triumph. Porém os dados não foram conclusivos para cv. Housui. O fechamento estomático pode ser um importante parâmetro na prevenção à cavitação xilemática em nogueiras e macieiras submetidas a déficit hídrico no solo. Em regime de secas severas, a macieira mantém os estômatos parcialmente abertos, indicando maior tolerância desta espécie à seca quando comparado à nogueira. E por fim, a técnica de injeção de ar utilizando câmara de ar com duas saídas é fiável para espécies com xilema de porosidade difusa, utilizando câmaras curtas e amostras de ramo que tenha comprimento superior aos vasos do xilema.

Les pucerons sont des ravageurs importants des principales espèces fruitières en France, pêcher et pommier notamment. Dans le but de réduire l’usage des produits phytosanitaires, différentes alternatives sont envisagées pour contrôler les pucerons en verger. Nous avons commencé ce travail de thèse par une synthèse des différentes méthodes alternatives de contrôle envisageables et leur positionnement au cours des différentes étapes du cycle biologique du puceron. Puis nous avons étudié les effets de la modulation des caractéristiques de la plante hôte, via les pratiques culturales, sur l’abondance des pucerons. Notre étude se base sur l’hypothèse « Plant Vigor » qui énonce que les insectes phytophages sont plus performants sur les plantes ou les organes de forte vigueur. Par conséquent, sur nos deux dispositifs expérimentaux factoriels nous avons combiné des suivis dynamiques de croissance végétative et d’abondance de pucerons : Prunus persica - Myzus persicae (2 niveaux d’irrigation × 2 niveaux d’apport azoté) et Malus domestica - Dysaphis plantaginea (2 niveaux d’irrigation × 2 génotypes d’arbre). Les facteurs ont été choisis pour leur impact potentiel sur la croissance végétative et la qualité nutritionnelle de la plante hôte. Les expérimentations ont été menées sur de jeunes arbres en pot, ne portant pas de fruit. Au niveau du rameau, l’abondance des pucerons est positivement corrélée à la croissance végétative sur les deux systèmes étudiés. Sur pêcher, la relation disponibilité en azote et abondance de pucerons semble être médiée par le fort impact de l’azote sur la croissance végétative. L’effet négatif de la restriction hydrique sur l’abondance de pucerons ne semble pas lié à un impact sur la croissance végétative. Aussi sur le second système étudié : pommier-puceron cendré, nous avons choisi de faire varier les apports en eau et de travailler sur deux génotypes, pour tester la généricité de la réponse observée. A l’échelle du rameau, l’effet de la restriction hydrique sur l’abondance de pucerons est négatif pour un génotype et positif pour l’autre. Par contre à l’échelle de l’arbre, sur les deux génotypes l’abondance de pucerons est corrélée positivement à la croissance végétative et la restriction hydrique impacte négativement l’abondance de pucerons, ce qui suggère que la performance des pucerons est limitée sur les arbres en restriction hydrique par une autre composante que la vigueur de l’arbre. Ce travail de thèse montre que la restriction hydrique et le contrôle de la vigueur via les apports azotés peuvent s’avérer être des leviers pour le contrôle des pucerons en verger fruitier. Cependant les relations mises en évidence sont dépendantes du génotype, ainsi que de l’échelle d’analyse. Il reste à évaluer l’applicabilité de telles mesures sur des arbres en conditions de production, en prenant en compte notamment l’effet des restrictions hydrique et azotée sur la production fruitière. / Aphids are major pests of important fruit trees in France, especially peach and appletrees. In order to reduce chemical use, various alternatives can be implemented for themanagement of aphids in orchards. This thesis starts by a review of the different alternativemanagement methods and their positioning at different aphid life cycle stages. Then our workfocuses on the study of the effects of modulation of host plant characteristics, through culturalpractices, on aphid abundance. Our study is based on the Plant Vigor Hypothesis which statesthat phytophagous insects are more performant on vigorous plant or organ. Thus, in theexperimental part we combined dynamic assessment of vegetative growth and aphid abundanceduring two factorial experiments: Prunus persica – Myzus persicae (2 levels of water supply ×2 levels of nitrogen supply) and Malus domestica – Dysaphis plantaginea (2 levels of watersupply × 2 tree genotypes). We chose those factors for their possible impact on vegetativegrowth and nutritional quality of the host plant. We conducted the experiments on young nonbearingpotted trees. At shoot scale, aphid abundance is positively correlated to vegetativegrowth for both studied systems. On peach tree, the positive impact of nitrogen availability onaphid abundance seems to be mediated by the strong positive impact of nitrogen on vegetativegrowth. The negative effect of water restriction on aphid abundance seems to be unrelated toan impact of water availability on vegetative growth. Thus on the second studied system: appletree – rosy apple aphid, we chose to vary water supply and to work on two genotypes to test thegenericity of the observed pattern. At shoot scale, water restriction has a positive effect on aphidabundance on one tree genotype and a negative effect on the other one, whereas at tree scalefor both tree genotypes aphid abundance is positively correlated to vegetative growth and waterrestriction negatively impacts aphid abundance. These results suggest that aphid performanceon water restricted trees is limited by another host plant characteristics than vegetative growth.This thesis shows that water restriction and vigour management through nitrogen fertilizationcan be implemented to manage aphids in fruit orchards. However, the patterns evidenced aredependent on tree genotype and on the scale of analysis. The applicability of these alternativemethods remains to be assessed in producing orchards, taking into account the effects of waterand nitrogen restrictions on fruit production.

Partendo da una concettualizzazione multidimensionale della povertà, il presente lavoro di ricerca studia l’effetto prodotto dalla partecipazione a programmi di microcredito su specifiche dimensioni di genere: l’empowerment delle donne e la violenza domestica. Il primo capitolo analizza la letteratura empirica sul tema in un’ottica critica, gettando le basi per lo sviluppo dei successivi. La seconda parte esamina la relazione fra partecipazione al microcredito e due distinte dimensioni di empowerment utilizzando un modello ad equazioni strutturali (SEM). Accanto alla partecipazione a tali programmi, considero, quale potenziale causa del processo di empowerment femminile, le attitudini maschili in merito al ruolo svolto dalle donne all’interno e al di fuori del contesto familiare. Dai risultati emerge un’associazione positiva fra microcredito e dimensioni di empowerment considerate, ma l’effetto delle attitudini maschili non è significativo. Infine, nell’ultimo capitolo esamino come la partecipazione al microcredito, congiuntamente ad altri fattori socio-demografici, influenza il subire violenza domestica e le attitudini femminili circa la giustificazione della stessa in determinati contesti. Dall’analisi empirica emerge un’associazione positiva tra microcredito e violenza domestica, mentre il partecipare a tali programmi non produce alcun effetto significativo sulle attitudini femminili in merito alla giustificazione della stessa. / The focus of this dissertation is about the influence of participation in microcredit programs on gendered dimensions of poverty. Specifically, I refer to multidimensional poverty in terms of women’s empowerment and domestic violence. The first chapter reviews the empirical literature on microcredit and poverty in a critical perspective and lays the foundations for the two later chapters. The second part explores the relationship between participation in microcredit programs and two distinct dimensions of women’s empowerment using a structural equation model with categorical observed variables. I consider a set of potential causes of the empowerment dimensions including participation in microcredit programs and men’s attitudes towards women’s role in intra-household relationships and in the social context. Interestingly, the former is positively associated with empowerment while the men’s perception about the women’s role do not produce a significant effect on both empowerment dimensions. The last chapter investigates how participation in microcredit programs along with other socio-demographic factors affect the likelihood to experience physical violence and the likelihood of women’s beating justification in different situations. The most interesting result concerns the influence of microcredit on the outcomes variables: it doesn’t affect women’s beliefs about beating justification but it is positively associated with physical violence.

La connaissance des processus physiologiques, soit dans la phase de repos, soit pendant le développement végétatif, est important dans l'adaptation des angiospermes ligneuses tempérées, plutôt sur la question de la gestion de l'eau par la plante. Les objectifs de cette étude étaient d'évaluer la teneur de l'eau et le métabolisme des hydrates de carbone pendant l'état d'avancement de la dormance chez les poiriers, d'évaluer les stratégies d'utilisation de l'eau chez deux espèces ligneuses (pommier et noyer), qui ont été soumis à trois niveaux de déficit hydrique, et finalement, d'évaluer la fiabilité de la technique d'injection d'air pour provoquer la cavitation dans trois espèces d'angiospermes ligneuses. Lors de la première expérience, menée pendant l'automne et l'hiver 2008 au Brésil, nous avons utilisé les cultivars de poiriers et de 'Packham Triumph' et 'Housui'. La deuxième expérience a été développée en France au cours de l'été 2009, avec des pommiers et des noyers sous stress hydrique. La troisième expérience a été réalisée en France en 2009 avec trois espèces d'angiospermes ligneuses avec différentes longueurs de vaisseaux du xylème, Betula pendula, Prunus persica et Quercus robur. D'après les résultats, on a pu conclure que la teneur de l'eau dans les tissus peut être un marqueur de la progression de dormance de la 'Packham Triumph'. Cependant, les données ne sont pas concluantes pour la 'Housui'. La fermeture des stomates peut être un paramètre important dans la prévention de la cavitation du xylème chez les noyers et pommiers soumis à un déficit hydrique du sol. Lors du régime de sécheresses sévères, le pommier conserve les stomates partiellement ouverts, ce qui indique une plus grande tolérance de cette espèce à la sécheresse par rapport au noyer. Enfin, la technique d'utilisation de l'injection d'air avec des caméras d'air à deux sorties est fiable pour les espèces dont le xylème a une porosité diffuse, dès qu'on utilise des caméras courtes et des échantillons de branches qui ont une longueur plus grande que les vaisseaux du xylème.

This thesis sheds light on several aspects of the economics of marital formation, dissolution, and bargaining. The first chapter focuses on the relationship between divorce law and family wellbeing, and shows that lowering the cost of divorce can reduce spousal conflict. The second chapter analyzes the effects of property division laws upon divorce on marital instability and female labor supply. Results suggest that a redistribution of property rights over family assets in case of divorce towards the financially weaker spouse, usually the wife, may increase marital instability and reduce female labor supply. The third chapter examines the role of sex ratios in college in explaining family formation patterns of young adults. Empirical evidence suggests that individuals who are exposed to a larger fraction of opposite-sex school mates are more likely to be married or residing with a partner from the same field of study shortly after finishing school. / Esta tesis arroja luz sobre algunos aspectos de la economía de la formación, disolución y negociación familiar. El primer capítulo se centra en la relación entre la regulación sobre el divorcio y el bienestar de la familia, y muestra que una disminución del coste del divorcio puede reducir el nivel de conflicto entre esposos. El segundo capítulo analiza los efectos de las leyes de división de activos en caso de divorcio sobre la inestabilidad matrimonial y la oferta de trabajo de las mujeres. Los resultados sugieren que una redistribución de los derechos de propiedad sobre los activos familiares en caso de divorcio en favor de la parte financieramente más débil, habitualmente la mujer, puede aumentar la inestabilidad matrimonial y reducir la oferta de trabajo de las mujeres. El tercer capítulo examina el papel de la ratio de sexos en la universidad en explicar el patrón de formación familiar de adultos jóvenes. La evidencia empírica sugiere que los individuos que están expuestos a una mayor proporción de compañeros del sexo opuesto durante la universidad tienen más probabilidad de estar casados o residiendo con una pareja de la misma carrera, poco después de finalizar los estudios.

Diss. Wirtsch.-wiss. St. Gallen, 1999 ; Nr. 2240. / En librairie dans la coll. "Schriftenreihe des Forschungsinstitutes für Arbeit und Arbeitsrecht an der Universität Sankt Gallen", Bd 20. Literaturverz.

[pt] A educação doméstica foi uma significativa prática de educação realizada nas Casas do Brasil de Oitocentos, que, em determinados momentos, consistiu na forma majoritária de ensinamentos dados a crianças e jovens, naquele tempo e contexto. Realizada pelos mestres, que se caracterizavam como professores particulares, preceptores, ou mesmo por familiares e padres, essa modalidade foi uma prática constante de educação durante todo o Brasil Imperial, tendo sua origem na educação de príncipes e nobres e sendo marcada pela influência européia. A tese propõe-se a estudar as características dessa prática e das circunstâncias em que ocorria na Casa, bem como, as relações que se estabeleciam entre ela, os colégios particulares e a escola estatal emergente, em um cotidiano em que conviviam essas diferentes modalidades de educação, concebidas como formas reconhecidas de educar meninos e meninas em Oitocentos. A pesquisa está baseada em diversos tipos de fontes documentais, principalmente em periódicos da época, que, explicitamente, apresentam como se configuravam as práticas de educação realizadas na Casa e como se inscrevem nesse período os mestres, agentes e responsáveis pela educação das crianças de elite no Brasil Oitocentista. / [en] Education at home was a significant educational practice held at the Brazilian Homes in the 18th Century, which, in some moments, represented the largest share of education imparted to the young and to the children, at that time and situation. Held over by masters, who assumed the position of teachers and tutors private, or even by members of the family or priests, it was a constant practice in education all over the Imperial period in Brazil, having as its model the education imparted to princes and the nobility, and as its main feature the European influence. The thesis proposes studying the characteristics of this practice and of the circumstances in which it happened at the House, as well as the relationships established among it, the private schools and the emerging state schools, in a daily life involving the different means of education conceived as methods to educate boys and girls in the 18th Century. The research is based on several kinds of documental sources, mainly from periodicals of the time, which show clearly how the educational practices held at Home were planned and how the masters, the agents and the ones in charge of the education of the children of the elite in Brazil of the Eighteen Hundreds were inscribed in the period.

[pt] Esta pesquisa objetivou analisar a discussão acerca da Lei n. 11.340, intitulada Lei Maria da Penha, de 7 de agosto de 2006, na produção científica dos programas de pós-graduação stricto sensu do Serviço Social no Brasil no período de 2006 a 2018. Para tanto, foi feito um levantamento bibliográfico das produções científicas neste período em dois bancos de dados: a Biblioteca Digital de Teses e Dissertações (BDTD) e o Catálogo de Teses e Dissertações da CAPES. Com um quantitativo de 24 produções, optou-se por fazer uma pesquisa do tipo Estado da arte, seguida do estudo qualitativo das 07 (sete) Dissertações de Mestrado que constavam em ambos os bancos de dados. Buscou-se analisar a discussão que vem sendo construída nessa determinada área do conhecimento, na tentativa de mapear a produção científica stricto sensu do Serviço Social no que concerne à temática, sendo necessário para isto desvelar quem, onde e como estas pesquisas foram produzidas. A violência contra a mulher é uma realidade presente no cotidiano profissional da assistente social, portanto, a ampliação do debate na formação acadêmica, seja na graduação, na pós-graduação lato sensu e stricto sensu, deve ser motivada uma vez que a atuação dessa profissional está imbricada nas políticas públicas de enfrentamento à violência contra a mulher vítima de violência, tanto na gestão, na implantação, na implementação quanto no controle social. Apesar de sua pertinência, a produção stricto sensu do Serviço Social sobre a temática ainda é escassa. No entanto, os trabalhos demonstram aprofundamento do tema ao conceituar gênero, destacar a preponderância dos movimentos feministas e de mulheres e contextualizar a Lei analisando sua aplicabilidade e/ou efetividade dentro dos espaços que atuam no combate à violência doméstica e familiar contra a mulher. / [en] This research aimed to analyze the discussion about Law n. 11.340, entitled Lei Maria da Penha, of August 7, 2006, in the scientific production of the stricto sensu graduate programs of Social Work in Brazil in the period from 2006 to 2018. For both, a bibliographic survey of scientific productions in this period was made in two databases: the Digital Library of Theses and Dissertations (BDTD) and the CAPES Theses and Dissertations Catalog. With a total of 24 productions, it was decided to conduct a research of the type State of the art, followed by the qualitative study of the 07 (seven) Master s Dissertations that appeared in both databases. We sought to analyze the discussion that has been built in this particular area of knowledge, in an attempt to map the stricto sensu scientific production of Social Work with regard to the theme, being necessary for this to reveal who, where and how these surveys were produced. Violence against women is a reality present in the professional daily life of the social worker, therefore, the expansion of the debate in academic education, whether in undergraduate, postgraduate lato sensu and stricto sensu, must be motivated since the performance of this professional it is interwoven in public policies to confront violence against women who are victims of violence, both in management, implementation, implementation and social control. Despite its relevance, the stricto sensu production of Social Work on the subject is still scarce. However, the works demonstrate a deepening of the theme when conceptualizing gender, highlighting the preponderance of feminist and women s movements and contextualizing the Law by analyzing its applicability and/ or effectiveness within the spaces that act in the fight against domestic and family violence against women.

Esta investigación trata sobre la importancia que tiene la minería artesanal en la economía familiar campesina en la comunidad campesina de Ayahuay (Apurímac). A partir de una observación y análisis del uso de tiempo de las familias, se identifica a tres tipos de familias de mineros: mineros constantes, mineros intermitentes (activos y pasivos) y ex mineros. Estas familias no solo se dedican a la minería, sino también a la agricultura, ganadería, trabajos eventuales, comercio, transporte, entre otras actividades, en una lógica de pluriactividad. La prioridad e importancia de cada actividad varía en cada familia de acuerdo a sus objetivos, limitaciones y prioridades. No obstante, podemos distinguir dos grupos de familias: el grupo de familias de mineros contantes y ex mineros transportistas o con empleo, caracterizado por ser menos pluriactivo (más especializado) y con estrategias menos campesinas; y el grupo de familias de mineros intermitentes y ex mineros no transportistas y sin empleo, caracterizado por ser más pluriactivo y con estrategias más campesinas.

[pt] Este estudo pretende analisar e discutir os principais dados sobre violência doméstica durante o primeiro ano de pandemia da Covid-19 e apresentar algumas respostas e iniciativas tecnológicas que foram aprimoradas e/ou criadas para atender as vítimas no Brasil. Com a propagação da Covid-19 em todo mundo no ano de 2020, medidas de isolamento social foram adotadas como importante estratégia para a redução do número de infectados pelo vírus. Ficar em casa, no entanto, virou sinônimo de insegurança para muitas mulheres, já que é no próprio domicílio onde ocorre grande parte dos casos de feminicídio no país. Um mês depois de a Organização Mundial de Saúde decretar a pandemia, o relatório Covid-19 e o Combate à Violência Contra Mulheres e Meninas (ONU Mulheres) já mostrava que o número de casos de violência doméstica tinha aumentado em vários lugares do mundo. Esse texto apresenta os principais aplicativos para celular, serviços de atendimentos online e outras ferramentas digitais, assim como aponta para a necessidade de iniciativas e políticas específicas, investimento e desenvolvimento em novas tecnologias para combater os casos de violência contra as mulheres. / [en] This dissertation aims to analyze and discuss the main data on domestic violence during the first year of coronavirus pandemic and present some answers and technological initiatives that were improved to assist victims in Brazil. With the spread of Covid-19 around the world during 2020, social isolation was adopted as an important strategy to reduce the number of people infected by the virus. However, staying home has become synonymous of insecurity for many women, as most of femicide cases happen at home. A month after the World Health Organization declares Covid-19 a pandemic, the report Covid-19 and Ending Violence Against Women and Girls (UN Women) already showed that the number of cases of domestic violence had increased in many parts of the world. This text presents mobile applications, online assistance services and other digital tools as points the need of specific initiatives and policies, investment, and development in new technologies to combat cases of violence against women.