Orientadores: Antonio Wilson Sallum, Marcio Zaffalon Casati / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-08-04T07:08:30Z (GMT). No. of bitstreams: 1 Silva_CleversondeOliveirae_M.pdf: 339768 bytes, checksum: b5f6a5757d5c367ee7363e7fd581aa26 (MD5) Previous issue date: 2005 / Resumo: O objetivo deste estudo foi avaliar a influência do consumo de cigarro no resultado do tratamento de recessões gengivais, Classe I de Miller, através do uso de retalho posicionado coronalmente. Foram selecionados dez pacientes fumantes (grupo teste) e dez não-fumantes (grupo controle), apresentando recessão gengival entre 2,0 e 3,0mm em um canino ou pré-molar superiores. No exame inicial, os parâmetros clínicos de profundidade de sondagem (PS), nível clínico de inserção (NCI), nível da margem gengival (NMG), largura ápico-cervical do tecido queratinizado (TQ) e espessuras dos tecidos queratinizado (Esp-1) e mucoso (Esp-2) foram determinados. Todos os parâmetros, exceto Esp-1 e Esp-2, foram novamente avaliados 6 meses após os procedimentos cirúrgicos. A superfície radicular exposta foi instrumentada com posterior aplicação de solução de tetraciclina (50mg/ml). Inicialmente foi confeccionado um retalho total que em seguida foi dividido, deixando o retalho sem tensão para ser posicionado coronalmente e suturado. Os resultados não mostraram diferença estatística significativa (p>0,05) nos parâmetros de PS tanto intergrupos quanto intragrupos. Entre os fumantes ocorreu uma diminuição na TQ estatisticamente significativa (-0,72 + 0,73mm), o mesmo não acontecendo entre os não-fumantes (0,14 + 0,46mm). A diferença na TQ final entre os grupos foi significativa (p<0,05). Houve um ganho estatisticamente significativo do NCI (p<0,05) em ambos os grupos, sendo de 2,44 + 1,19mm nos fumantes e 2,20 + 0,74mm nos não-fumantes. Esta diferença não foi observada em uma comparação intergrupos (p>0,05). Não houve diferença significativa entre as espessuras (p<0,05). A porcentagem de recobrimento foi maior nos pacientes não-fumantes (90,5%) do que nos pacientes fumantes (69,8%), com uma diferença significativa (p<0,05). A recessão gengival residual foi significativamente (p<0,05) maior no grupo de fumantes (0,84 + 0,48mm) quando comparado ao grupo de não-fumantes (0,22 + 0,28mm). Os dados finais indicam que o cigarro possui um impacto negativo nos resultados do recobrimento radicular obtido com o retalho posicionado coronalmente / Abstract: The aim of this study was to evaluate the influence of cigarette smoking on the treatment of Miller¿s Class I gingival recession using the coronally positioned flap technique. Ten smoker (test group) and ten non-smoker (control group) patients with one 2.0-3.0mm recession defect in an upper canine or bicuspid were treated. At baseline, such clinical parameters as probing depth (PS), clinical attachment level (NCI), recession deep (NMG), apico-cervical width of keratinized tissue (TQ), and thickness of keratinized (Esp-1) and mucosal (Esp-2) tissues were assessed. All parameters, but Esp-1 and Esp-2, were reevaluated six months after surgery. Prior to flap elevation, the recession defects were scaled and the exposed root surface conditioned with tetracycline solution (50mg/ml). First, a mucoperiosteal trapezoidal flap was elevated. Then a split-thickness flap was extended further apically, in order to allow the flap to be positioned coronally and sutured without tension. No statistically significant difference (p>0.05) was observed for PS between groups, or for the intra-group comparison considering the pre and postsurgery periods. There was a decrease in TQ in the smoker group (-0.72 + 0.73mm), but not in the non-smoker group (0.14 + 0.46mm). A significant difference was observed for TQ, after six months, between the two groups tested (p<0.05). There was an increase in NCI from the baseline to six months after surgery (p<0.05) in both groups. This difference was 2.44 + 1.19mm for smokers and 2.20 + 0.74mm for non-smokers. This difference was not observed between groups (p>0.05). No difference was observed for Esp-1 and Esp-2 between smokers and non-smokers (p>0.05). The percentage of root coverage in non-smoker patients was 90.5% and in smokers 69.8%. This difference was statistically significant (p<0.05). The residual NMG was higher in the smoker group (0.84 + 0.48mm) than in the non-smoker group (0.22 + 0.28mm). This difference was significant (p<0.05). These results indicated that smoking has a negative impact on the root coverage using the coronally positioned flap technique / Mestrado / Periodontia / Mestre em Clínica Odontológica

Abstract The overall aim of this Thesis is to emphasise how Ground Penetrating Radar (GPR) can be used in different glaciological studies: in mapping the inner structure, determining accumulation rates, estimating water contents, mapping drainage channels and superimposed ice. The Thesis also aims to improve current knowledge on Svalbard polythermal glaciers: their hydrothermal properties, drainage and behaviour in the changing climate. Six glaciers were studied: four tidewater glaciers, one ice-field and one valley glacier. The hydrothermal structure of Hansbreen was mapped with GPR at high lateral and vertical resolution. The hydrothermal structure of the glacier is highly variable and complex. In general the temperate ice contains 1-2% water, but water contents of about 4% are associated with englacial water channels or water-filled near surface crevasses or moulins. Hydrothermal properties determined from detailed GPR surveys of Hansbreen, Werenskioldbreen, Nordenskjöldbreen and Kongsvegen show similar structures such as foliations and superimposed ice in the firn-ice transition area, though with different emphasis on each glacier. The overall extent of superimposed ice was difficult to measure accurately because of the limited resolution and the sporadic nature of the reflections. However there is encouraging similarity between GPR and satellite imagery of superimposed ice extent. Hydraulic geometry models of the subglacial hydrology of Hansbreen and Werenskioldbreen suggest that the water pressure is generally close to ice-overburden pressure but varies greatly depending on local conditions. GPR data and data from three ice-cores were used to determine spatial and temporal variation of snow accumulation on a longitudinal profile of Nordenskjöldbreen. Spatial variations of 40-60% in snow accumulation over short distances along the profile were observed. The results indicate a 12% increase in accumulation rate during the late 1980s and 1990s. Hornbreen and Hambergbreen and several surrounding glaciers in southern Svalbard were mapped with GPR together with a DGPS (Differential Global Positioning System) in 2000. The data were compared to glacier surface height and glacier front length data from 1936 and 1901. The results show that the low-lying glaciated valley filled with Hornbreen and Hambergbreen may become a partially inundated ice-free isthmus within the next 100-150 years.

No abstract available. / Dissertation (LLM)--University of Pretoria, 2013. / Centre for Human Rights / unrestricted

Comparison of American and Czech financial system followed by analyses and investment strategy for selected institutions.

The diploma work "Problems of the labour market in the region of Vysočina" evaluates the main causes and process of the economic recession, based on an analysis of the labour market and unemployment in the region of Vysočina which are based on chosen socioeconomic and demographic characteristics. The work consists of theoretical and practical parts. The first chapter is devoted to basic theoretical concepts concerning the labor market. The second chapter deals with unemployment and clarifies its economic, social and psychological impacts. The third chapter contains an analysis of demographic and socioeconomic characteristics affecting the labor market in the region. The fourth chapter assesses the impact and consequences of the crisis in the Vysočina region and explains the emergence of the financial crisis and its expansion into the real economy. The fifth chapter covers the analysis of the labor market and unemployment during the economic cycle changes. The last two chapters contain empirical research carried out using questionnaires, whose task was to clarify the feelings and attitudes of the population to adverse economic developments and their impact on the labor market and employment.

The goal of this thesis is to analyze the development of the economic recession in the Czech Republic and its impact on the logistics services providers. It means how the providers acquitted before the attack of the recession, how they were influenced by the crisis and whether there was any improvement. Another goal is to focus on the best practices and measures that providers should orient on for a successful recovery from the economic recession. In the theoretical part the thesis explains the basic concepts of logistics, outsourcing of logistics and introduces all kinds of logistics providers, which can be used for the outsourcing of logistics. The practical part then directly analyzes the development of the industry, trade, transport, logistics and real estate market in the Czech Republic over the last few years. At the same time, there are given some recommendations and measures for the period of recession.

This diploma work analyzes selected social indicators in region Pardubice. The aim of the diploma work is find out how the indicators developed under the influence of economic recession. Period between the years 2006 and 2011 is analyzed. The theoretical part of the diploma work is focused on characterization of selected social indicators, inception of economic recession and its impacts on the Czech republic. The practical part of the diploma work analyzes first demographic and economic situation in region Pardubice and then it analyzes selected social indicators. It compares the progress of the indicators in region Pardubice with the progress of average value of these indicators in the Czech republic. The analysis confirmed that economic recession has presumed social impacts and so it influences selected social indicators.

Economists often use complex mathematical models to forecast the future path of the economy and the likelihood of recession. But more simple indicators such as interest rates, stock price indices, and monetary aggregates also contain some relevant information about future economic activity. In this thesis we revisit the usefulness of one such indicator, the yield curve or, more specifically, the spread between the interest rates on the ten-year Treasury note and the three-month Treasury bill. By using four different models we examine whether the yield spread has still some predicitve power for future real GDP growth in selected european countries. What is more, we are comparing the predictive power of the yield spread with different variables, both in- sample and out-of-sample. We decompose the yield spread into expectations effect and term premium effect in order to investigate which factor contributes more to predicting real GDP growth. Using modified definition of recession we conclude that that yield spread still contains some useful information for predicting future economic activity, although its predictive power deteriorates.

Orientador: Mauro Pedrine [Unesp] Santamaria / Resumo: A recessão gengival está frequentemente associada à hipersensibilidade dentinária e insatisfações estéticas. Diversas técnicas cirúrgicas foram desenvolvidas a fim de reestabelecer a posição da margem gengival acometida. Dentre elas, a adição de biomateriais aos procedimentos cirúrgicos de retalho posicionado coronariamente (CAF) é considerada uma alternativa promissora. O objetivo do presente estudo foi comparar os efeitos do uso de dois enxertos, matriz colágena (CM, Mucograft®) e matriz dérmica acelular xenógena (XDM, Mucoderm®), no tratamento de recessões gengivais unitárias associados ao CAF. Para tal, 75 pacientes portadores de recessões gengivais unitárias foram selecionados e divididos em três grupos: CAF (n=25, técnica isolada de CAF para recobrimento radicular), CAF+CM (n=25, CAF associado à CM) e CAF+XDM (n=25, CAF associado à XDM). Os parâmetros clínicos e centrados no paciente foram avaliados no baseline e seis meses após o tratamento. Aos seis meses, os três grupos apresentaram porcentagens significativas de recobrimento radicular (78,9±26,2% para CAF, 78,0±28,5% para CAF+CM e 65,6±26,9% para CAF+XDM), sem diferença significativa entre os grupos (p>0,05). O recobrimento radicular completo foi obtido em 52%, 48% e 28% dos casos tratados com CAF, CAF+CM e CAF+XDM, respectivamente (p=0,2). Os grupos que receberam enxerto apresentaram maior ganho de espessura de tecido queratinizado (ETQ; p<0,001). Não foram observadas diferenças no grau de edema tecidual (p=0,9) e ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Gingival recession is frequently associated with dentin hypersensitivity and aesthetic complaint. Different periodontal surgical techniques have been developed in order to reestablish the position of the gingival margin. The addition of biomaterials to coronally advanced flap (CAF) surgical procedures is considered a promising alternative. The aim of this study was to compare the effects of using two biomaterials, collagen matrix (CM, Mucograft®) and xenogeneic acellular dermal matrix (XDM, Mucoderm®) associated with CAF technique for the treatment of single gingival recessions. For this, 75 patients presenting single gingival recessions were selected and allocated into three groups: CAF (n=25, CAF for root coverage alone), CAF+CM (n=25, CAF associated with CM) and CAF+XDM (n=25, CAF associated with XDM). Clinical and patient-centered parameters were assessed at baseline and six months post-procedures. At six months, the groups had significant percentages of root coverage (78.9±26.2% for CAF, 78.0±28.5% for CAF+CM e 65.6±26.9% for CAF+XDM), with no intergroup difference. Complete root coverage was obtained in 52%, 48% and 28% of cases treated with CAF, CAF+CM and CAF+XDM, respectively (p=0.2). The groups which received some graft showed greater gain in keratinized tissue thickness (p<0,001).No differences were observed in tissue edema (p=0.9) and postoperative discomfort (p=0.2) at seven days. All groups showed significant dentin hypersensitivity reduction (p<0.001) and impro... (Complete abstract click electronic access below) / Mestre

This dissertation consists of three essays on firm-level frictions and their aggregate implications. The first two chapters show that inter-firm lending plays an important role in business cycle fluctuations. In Chapter I, I theoretically investigate the role of supplier credit relationships in propagating and amplifying small shocks using a stylized model of inter-firm trade and lending. I build a network model of the economy in which trade in intermediate goods is financed by supplier credit. In the model, a financial shock to one firm affects its ability to make payments to its suppliers. The credit linkages between firms then transmit financial shocks across firms, amplifying their effects on aggregate output. In Chapter II, I embed this mechanism into a more general macroeconomic framework to study empirically the role that inter-firm credit plays in the business cycle. To calibrate the model, I construct a proxy of inter-industry credit flows from firm- and industry-level data. I find that the credit network of the US accounts for 22 percent of the fall in GDP occurring from an aggregate financial shock. Finally, I use a structural factor approach to estimate the shocks which affected US industrial production (IP) industries from 1997-2013. I find that most aggregate volatility in IP was driven by aggregate liquidity shocks and idiosyncratic productivity shocks, and that the credit network of IP industries generated 17 percent of observed aggregate volatility. During the recent recession, three-quarters of the drop in aggregate IP was due to an aggregate financial shock. Chapter III presents a theoretical investigation of the long-run relationship between international trade and unemployment. I develop and analyze a static general equilibrium model with labor market frictions and heterogeneous firms in which firms can engage in cross-border hiring by employing labor domestically or from abroad. This chapter outlines the conditions on the model parameters under which unemployment rises or falls after trade liberalization, and demonstrates that models in the literature which ignore cross-border hiring likely underestimate the upward force of trade liberalization on unemployment.