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Dissertations |
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1
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DANIELLE FERNANDES DE LUNA
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Regional Inequalities in Pap Smear Adherence in 2019: Analysis Using Data from the National Health Survey (PNS)
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Advisor : JOSE VILTON COSTA
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COMMITTEE MEMBERS :
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JOSE VILTON COSTA
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KARINA CARDOSO MEIRA
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PRISCILA MARIA STOLSES BERGAMO FRANCISCO
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Data: Feb 26, 2025
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Show Abstract
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Non-communicable diseases (NCDs), including cancer, represent one of the greatest challenges to global public health. In Brazil, cervical cancer, despite primary prevention through vaccination and secondary prevention through Pap smears, still presents high incidence and mortality rates. Regular screening through Pap smears is essential for early detection of this disease and increased survival. However, adherence to this screening varies significantly across different regions of the country, highlighting the need for a deeper understanding of the factors influencing this practice. This study aimed to identify the factors associated with cervical cancer screening through Pap smears in Brazil among women aged 25 to 64, considering regional inequalities. Using data from the 2019 National Health Survey, statistical analysis was conducted using Poisson regression models with robust variance to explore the associations between Pap smear uptake and independent variables (age, education, income, race/color, residence, and health insurance coverage), estimating crude and adjusted prevalence ratios along with their respective 95% confidence intervals. The results show that younger women, particularly those aged 25 to 34, have the highest rates of not having had a Pap smear, with the North (49.5%) and Midwest (50.8%) regions standing out. The Southeast (38.1%) and South (38.5%) regions have the highest rates of Pap smears performed more than 3 years ago, especially among women aged 55 to 64. In contrast, the North (16.8%) and Midwest (18.7%) regions have the lowest rates of Pap smears performed in the last 3 years, evidencing inequalities in access to preventive health services. Women with higher education (up to 70.4% in the South) and income above 3 minimum wages (up to 73.9% in the South) have the highest prevalence of Pap smears, while those with lower education (46.2% in the Northeast) and income up to 1 minimum wage (48.6% in the Midwest) have the lowest rates. Urban residents (62.1% in the South) have higher rates of screening compared to rural residents (47% in the North and Northeast). Additionally, women with private health insurance (73.2% in the South) have significantly higher prevalence rates than those who rely exclusively on the public health system (49.8% in the Northeast).
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2
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ANA CLARA DE MEDEIROS LIMA
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DEMOGRAPHY AND MUNICIPAL INCOME TRANSFER PROGRAMS: A SOCIODEMOGRAPHIC ASSESSMENT OF THE MUNICIPALITY OF MARICÁ-RJ
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Advisor : JÁRVIS CAMPOS
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COMMITTEE MEMBERS :
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ALEXSANDRO FERREIRA CARDOSO DA SILVA
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EDUARDO HENRIQUE DINIZ
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JÁRVIS CAMPOS
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LUANA JUNQUEIRA DIAS MYRRHA
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Data: Feb 27, 2025
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Show Abstract
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This paper investigates the relationship between municipal income transfer programs, with a particular focus on the Mumbuca social currency, and the sociodemographic evolution and urban space of the municipality of Maricá-RJ. The research focuses on the demographic and urban dimensions, exploring how these programs influence and interact with the sociodemographic and urban space transformations of the municipality. The research begins with a review of the literature on urbanization, sociospatial segregation, sustainable development and the urban evolution of Maricá, as well as a discussion on income transfer programs, their guidelines and the trajectory of social currencies. Regarding the methodology, secondary data were used to construct population, sociodemographic, and urban infrastructure indicators for the years 2010 and 2022, as well as on the circulation of the Mumbuca currency in the territory between 2022 and 2023. Then, descriptive statistics and spatial analysis methods were used to evaluate, in an exploratory manner, possible relationships between the circulation of currencies from municipal income transfer programs in the territory (more specifically in the neighborhoods) and the transformations observed in the population and urban space in recent years. With this study, it was possible to evaluate the relationship of social currency transactions as a factor intrinsically linked to improvements in the living conditions of the population of Maricá, and, in turn, fundamental for the evaluation of income transfer programs and for the development of urban public policies, as well as for Demographics.
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3
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ELFAS ALBERTO MACIA
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Population Projections for Subnational Areas of Mozambique by Age and Sex Until 2047
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Advisor : FLAVIO HENRIQUE MIRANDA DE ARAUJO FREIRE
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COMMITTEE MEMBERS :
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FLAVIO HENRIQUE MIRANDA DE ARAUJO FREIRE
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MARCOS ROBERTO GONZAGA
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VICTOR HUGO DIAS DIOGENES
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BERNARDO LANZA QUEIROZ
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Data: Apr 1, 2025
Ata de defesa assinada:
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Show Abstract
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This study aimed to project the population of Mozambique’s subnational areas by age and sex from 2022 to 2047, using census data from 2007 and 2017 provided by the National Institute of Statistics (INE). The cohort relations method, based on age distribution and survival ratios, was applied to capture demographic dynamics effectively. Two projection approaches were adopted: one using INE’s published projections and another, termed "own projection," which first projected the provinces based on United Nations estimates before projecting districts. INE’s projections employed the demographic components method. The findings indicate variations in annual population growth across Mozambique’s districts, with some experiencing population losses while others see significant increases. The differences between INE and own projections vary by age group and province, highlighting distinct demographic modeling patterns. For most provinces, own projections estimate a larger population than INE’s over time, suggesting methodological differences in fertility, mortality, and migration assumptions. However, in older age groups, INE's projections indicate a larger population. District-level analyses reveal that in many areas, male population projections exceed female projections, possibly due to differences in migration, mortality, or demographic factors. Conversely, some districts show a predominance of female projections, suggesting region-specific factors influencing demographic trends. By 2047, Mozambique’s population is projected to reach approximately 60,117,595, with an average annual growth rate of 2.47%. The provinces of Maputo, Nampula, and Zambézia are expected to grow the most, while Sofala and Tete will experience moderate increases. At the district level, Matola, Tete, and Nampula will have the highest growth rates (1.28%, 1.25%, and 1.16%, respectively), whereas Massangena, Chimonila, and Chigubo will see the lowest growth (0.93%, 0.74%, and 0.83%). These projections are crucial for demographic planning and the formulation of policies addressing population distribution in Mozambique.
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4
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BRUNA LIDICY FAÇANHA LIMA
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REGIONAL AND GENDER DIFFERENCES IN SUICIDE ATTEMPTS AND SUICIDE: A BRAZILIAN DEMOGRAPHIC ANALYSIS
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Advisor : KARINA CARDOSO MEIRA
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COMMITTEE MEMBERS :
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KARINA CARDOSO MEIRA
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LUANA JUNQUEIRA DIAS MYRRHA
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EDER SAMUEL OLIVEIRA DANTAS
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JULIANO DOS SANTOS
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Data: Jul 30, 2025
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Show Abstract
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Suicidal behavior results from a complex interaction between individual and contextual factors. Gender emerges as a critical determinant in this analysis, reflecting the so-called “gender paradox of suicide”, in which men and women engage in suicidal behavior in distinct ways, mediated by socially constructed roles and traditional gender norms. Within this context, the present study aimed to analyze the temporal trends in suicide attempt rates (2014–2023) and completed suicides (2010–2023) in Brazil, stratified by gender and geographic region. An ecological time series study was conducted with individuals aged 10 years or older. Data on suicide deaths were obtained from the Mortality Information System (SIM/DATASUS), and data on suicide attempts were extracted from the Notifiable Diseases Information System (SINAN/DATASUS). Rates were calculated per 100,000 inhabitants and age-standardized according to the age structure of the 2022 Brazilian Census. Trend analysis was performed using Prais–Winsten regression, with calculation of the Annual Percent Change (APC) and respective 95% confidence intervals (95% CI). Statistical analyses were conducted using R software (v4.4.1), adopting a significance level of p < 0.05.The findings revealed that suicide attempt rates were higher among women, whereas completed suicides were more prevalent among men, reflecting gendered patterns in the lethality of methods used. A sustained increase in reported suicide attempts was observed nationwide between 2014 and 2023. Although no statistically significant differences between sexes were found, upward trends were identified in both groups, with greater intensity among adolescents and young adults (10–19 years) compared to older adults.Regarding completed suicides, an upward trend was observed across all regions of the country. Although men exhibited the highest absolute suicide rates, the most pronounced growth occurred among young women, particularly by hanging: APC of 12.70% (95% CI: 9.86-15.60) among those aged 10-14, and 9.51% (95% CI: 7.60–11.50) among those aged 15-19. Among men, the corresponding APCs were 6.03% (95% CI: 4.44-7.64) and 5.29% (95% CI: 3.05-7.57), respectively. Among older adults, although suicide rates were higher, trends were stable or declining. Notably, a decrease in self-poisoning rates among women aged 60 years or older was observed (APC = -2.74; p < 0.001). These findings highlight age-, region-, and gender-based disparities in suicidal behavior in Brazil, with particular concern regarding the rise among young women, especially due to the use of highly lethal methods such as hanging. The results underscore the urgent need for intersectoral public policies incorporating a gender-, youth- and territory-sensitive approach, focused on prevention, qualified surveillance, and continuous psychosocial care.
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5
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RICARDO MONTEIRO DE CARVALHO
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PHASES AND FACES OF INTRASTATE MOBILITY IN CEARÁ (1995/2000 AND 2005/2010): EXPANDED METROPOLIZATION, DEMETROPOLIZATION AND MIGRATORY SELECTION
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Advisor : SILVANA NUNES DE QUEIROZ
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COMMITTEE MEMBERS :
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RICARDO OJIMA
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ROSANA APARECIDA BAENINGER
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SILVANA NUNES DE QUEIROZ
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Data: Oct 21, 2025
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Show Abstract
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This dissertation analyzes the dynamics of intrastate mobility in Ceará between 1995/2000 and 2005/2010, considering the phases and facets of migration, migrant selectivity, and the effects of municipal population size on flows and income. The study begins with the debate on the processes of expanded metropolization and demetropolization, seeking to understand whether there is population redistribution from the Fortaleza Metropolitan Region (RMF) to inland cities, especially medium-sized ones, and whether metropolitan centrality prevails or both processes coexist. The research uses microdata from the 2000 and 2010 Demographic Censuses (IBGE), organized into origin-destination migration matrices and analyzed using classic indicators of Gross Migration, Net Migration, and the Migration Effectiveness Index. Migratory selectivity is examined using the Heckman model, considering sociodemographic, occupational, and income differential characteristics. The results reveal that intrastate mobility in Ceará reflects the coexistence of two processes: on the one hand, expanded metropolitanization, marked by the population loss of Fortaleza toward neighboring municipalities in the RMF, such as Caucaia and Maracanaú; and, on the other, signs of intrastate demetropolization, evidenced by the emergence of medium-sized inland cities (size 4: Juazeiro do Norte, Crato, Sobral, and Itapipoca), which began to register positive migration balances. This dual dynamic shows that mobility reinforces urban hierarchies but also increases the centrality of intermediate regional hubs. Regarding individual characteristics, consistent selective patterns are observed: a predominance of young, male, mixed-race, and highly educated migrants, although gender and racial inequalities remain structural. In the economic sphere, the hypothesis of positive selectivity is confirmed: migrants earn higher incomes than non-migrants, especially in larger municipalities. In 2000, size 2 and 3 cities already had wage differentials compared to size 1 cities, but in 2005/2010, size 4 municipalities consolidated their prominent position, offering higher salaries and reinforcing their attractiveness. Thus, the economic gains from migration vary according to municipal size: smaller in small municipalities (size 1), intermediate in sizes 2 and 3, and more significant in medium-sized municipalities (size 4). The conclusion is that intrastate mobility in Ceará is not neutral: it combines expanded metropolization and signs of intrastate demetropolization, reproducing urban and social hierarchies, but also revealing the emergence of medium-sized cities as new regional hubs. This evidence contributes to the understanding of territorial reconfigurations and offers support for public policies aimed at reducing regional inequalities and strengthening the state's urban network.
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Thesis |
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1
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MARIA JOSÉ SILVA LOBATO
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INCLUSION AND ACADEMIC PERFORMANCE: ANALYSIS OF STUDENTS WITH DISABILITIES IN THE ENEM
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Advisor : MOISES ALBERTO CALLE AGUIRRE
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COMMITTEE MEMBERS :
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CEZAR AUGUSTO CERQUEIRA
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FIDEL ERNESTO CASTRO MORALES
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ISMENIA BLAVATSKY DE MAGALHÃES
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MOISES ALBERTO CALLE AGUIRRE
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WEBER SOARES
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WILSON FUSCO
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Data: Feb 14, 2025
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Show Abstract
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The National High School Exam (ENEM) is the main pathway for accessing higher education and student financing in Brazil. This thesis investigates the influence of socioeconomic and demographic factors on the participation and performance of the Special Education Public Population with Disabilities (PEcD_PEE) in ENEM, considering the temporal evolution of these factors and the regional diversity of Brazil. The study is grounded in Pierre Bourdieu's theory of Capitals and uses data from ENEM microdata (2009, 2019-2022) and the Basic Education School Censuses, analyzing variables such as income, parental education, household assets, race/ethnicity, gender, school type, location, and age. Using the Expectation Maximization method, socioeconomic profiles were characterized, and statistical tests (Shapiro-Wilk, Mann-Whitney, and Student's T-test) assessed significant differences between groups. Principal Component Analysis identified the main axes of variation in the data, revealing superior performance by regular education candidates compared to PEcD_PEE in all regions, with men excelling in Mathematics and women in Writing, except in the North, while older age negatively impacted performance. The Capital Cultural and Economic Minor (CCEM) profile predominated in the North and Northeast, whereas the Capital Cultural and Economic Elevated (CCEE) profile was prevalent in the South and Southeast, where accessibility resources were also better. Parental education was lower in the CCEM profile, and mixed-race and black women achieved lower scores, with the COVID-19 pandemic disproportionately affecting CCEM students due to limited technological resources. Understanding the socioeconomic and demographic factors that impact the educational inclusion of PEcD_PEE is crucial to promoting effective education, with large-scale assessments serving as essential tools for diagnostics that guide inclusive practices in the Brazilian education system.
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2
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GUILHERME SOUSA BRANDAO
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MULTIDIMENSIONAL POVERTY IN THE SEMI-ARID (2000 and 2010)
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Advisor : SILVANA NUNES DE QUEIROZ
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COMMITTEE MEMBERS :
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SILVANA NUNES DE QUEIROZ
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LUANA JUNQUEIRA DIAS MYRRHA
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MOISES ALBERTO CALLE AGUIRRE
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KLÉBER FERNANDES DE OLIVEIRA
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ROSEMARY DE MATOS CORDEIRO
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Data: Mar 6, 2025
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Show Abstract
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This thesis investigates multidimensional poverty in the northeastern semi-arid region in 2000 and 2010, analyzing its incidence and distribution from different perspectives: individual, family and municipal. To this end, it recalls demographic, historical and socio-economic elements that help to understand the dynamics of poverty in the region. The research is structured in three essays, each focusing on a specific dimension of poverty. The first essay examines the sociodemographic profile of individuals in situations of deprivation, outlining extreme poverty and its transformations over the decade. The second essay analyzes multidimensionally poor family arrangements, identifying structural changes in household compositions and their implications for social vulnerability. The third essay looks at poverty on a municipal scale, investigating its concentration and spatial dispersion, focusing on the size of municipalities and regional heterogeneity. The research uses microdata from the 2000 and 2010 Demographic Censuses as its source, the most comprehensive database on the conditions of the Brazilian population, allowing for detailed analysis at different geographical levels. The methodologies applied include descriptive statistics, spatial analysis and the Alkire-Foster method for measuring multidimensional poverty, offering a broad view of the deprivations present in the region. The results show progress in reducing extreme poverty over the 2000s but also highlight the persistence of structural inequalities that affect individuals, families and municipalities differently. At the individual level, while women showed a more significant reduction in extreme poverty, driven by social policies aimed at the family, brown men living in rural areas remained the most vulnerable group. The analysis of family arrangements reinforced this trend by revealing an increase in female headship among poor households, while racial inequality and lack of access to opportunities continued to limit the social mobility of certain groups. In addition, the growth in single-person households and the slight reduction in nuclear and extended households suggest changes in family structures. The municipal analysis revealed a spatial pattern of poverty, with small and micro-municipalities concentrating the highest rates of multidimensional poverty, while more economically dynamic medium-sized cities had better socio-economic conditions. The findings reinforce that the lack of economic diversification, poor infrastructure and limited access to basic services are determining factors of poverty in more vulnerable municipalities.
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3
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ANTONIA JAINE DA SILVA PEREIRA
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YOUTH TRANSITION TO ADULTHOOD IN NORTHEAST BRAZIL AT THE BEGINNING OF THE 21ST CENTURY: MODALITIES, INEQUALITIES, AND CHALLENGES IN THE LABOR MARKET
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Advisor : SILVANA NUNES DE QUEIROZ
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COMMITTEE MEMBERS :
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SILVANA NUNES DE QUEIROZ
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LUANA JUNQUEIRA DIAS MYRRHA
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MOISES ALBERTO CALLE AGUIRRE
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ANGELA WELTERS
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JOICE MELO VIEIRA
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Data: Mar 28, 2025
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Show Abstract
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The literature on youth has pointed a diversification in ways of being young, and in Brazil structural inequalities play an important role in this process. This diversity is also reflected in the transition to adulthood, in which the trajectories of new cohorts of young people in the process of acquiring adult status become more heterogeneous, both among themselves and in relation to previous cohorts. These differences, whether intra- or intergenerational, can result in so-called 'non-transitions', such as 'NEET youth'. The difficulties young people face in the labor market, which persist and worsen in certain economic conditions, affect the transition from the role of student to that of worker. The resulting difficulty in achieving financial independence also influences other dimensions of the transition. In this context, this thesis investigates the different modes of youth transition with a focus on the Northeast region, that combines conventional patterns and emerging dynamics, and continues to register greater vulnerabilities compared to other regions of Brazil, with regard to demographic, economic, educational and labor market insertion aspects. The research is based on the following central question: how does an unequal and uncertain context influence changes in the process of transition to adulthood at the turn of the 20th century into the 21st century? This question is composed of other more specific ones that favored the idealization of the thesis in two different essays. The first one aims to characterize the transition to adulthood in the Northeast region. The second one analyzes the influence of the labor market, indicative of the period effect, in the configuration of a more specific transition modality: young people without education and without work (NEET youth). For this, microdata from the Demographic Censuses of 1991 and 2010 (essay 1) and the PNAD of 1993, 1998, 2003, 2008 and 2013, as well as the PNADC of 2018 and 2023 (essay 2) are used. The main methods of analysis used are synthetic cohort entropy analysis (essay 1) and the Age-Period-Cohort (APC) model with Multinomial Logit (essay 2). Together, the essays show that the unequal and uncertain context places education and work as contrasting forces in the standardization or destandardization between the transition modalities of young people in the Northeast, as well as in the configuration of the NEET modality. Amidst inequalities, young people with lower incomes and from rural areas have greater chances of becoming part of the NEETs, despite the more pronounced trend of homogenization as students and the notable growth in the chances of studying in more recent cohorts. The uncertainty, especially for these profiles, is evidenced by the establishment of occupational status as the main component of the growing heterogeneity among young people in the region, together with the direct relationship between the unemployment rate and the chances of becoming part of the NEETs.
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4
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JONILSON DE SOUZA FIGUEIREDO
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ESSAYS ON ECONOMIC DEMOGRAPHY: AGE STRUCTURE, DEMOGRAPHIC WINDOW, AND ECONOMIC PERFORMANCE IN THE NORTHERN SEMIARID
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Advisor : LUANA JUNQUEIRA DIAS MYRRHA
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COMMITTEE MEMBERS :
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LUANA JUNQUEIRA DIAS MYRRHA
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SILVANA NUNES DE QUEIROZ
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CASSIANO JOSE BEZERRA MARQUES TROVAO
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FRANCISCO DO O DE LIMA JÚNIOR
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KLÉBER FERNANDES DE OLIVEIRA
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Data: Apr 28, 2025
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Show Abstract
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This thesis analyzes the spatial dynamics of the age structure and the demographic window of opportunity; and estimates the effects of these structures on the economic performance of the Northern Semiarid (SemSet). It consists of four essays. The first characterizes the evolution of the age structure and of the resulting demographic window, using the Formal Employment Index (IEF), comparing SemSet with Southern Semiarid (SemMer) and the rest of the country (1970-2022). The second maps the spatial dependence of this process between the municipalities of SemSet in 2022, via Local Indicators of Spatial Association, and describes the evolution of formal employment and the IEF, considering a young SemSet and an aging one (2000-2022). The third discusses variations in formal employment and remuneration in the municipalities of SemSet, comparing the contexts of shock (2020) and post-shock of the pandemic (2021) with the previous one (2019). The fourth essay estimates the effect of age structure on GDP per capita (proxy for economic performance), using lag and spatial autoregressive error models for the years 2000, 2010 and 2021. Although with different historical patterns, it was found that in SemSet, SemMer and the rest of the country, both the population growth rates, and the age structure converged. The window in SemSet appeared around 2005, some fifteen years after it was characterized outside the semi-arid region. The evolution of the IEF suggested: i) that the “bonus” materialized moderately until 2014, when it was squandered; ii) the inter-regional differential was maintained: in 2000, the IEF outside the semi-arid region was three times that observed in SemSet (8.79%, compared to 26.46%). In 2021, although smaller, the gap remained the same (17.11%, compared to 37.81%); iii) fragility in the intraregional scale strata; in 2021 it was 12.37% in the young SemSet and 11.80% in the aging one, denoting poor use of the window of opportunity. The third identified a low spatial correlation in the variations of employment and remuneration in both 2020 and 2021. Despite heterogeneity, municipalities with positive formal employment variation rose from 234 (2020) to 618 (2021), indicating recovery. Finally, the fourth essay estimated that a 10% reduction in youth dependency accounted for, on average, 6.79%, 6.76%, and 8.72% of the increase in per capita GDP in 2000, 2010, and 2021, respectively. Conversely, a 10% increase in elderly dependency negatively influenced GDP by 6.27% in 2010 and 8.88% in 2021, compared to 3% in 2000. Simultaneously, a 10% increase in the ratio of the population aged 30–49 to the rest of the working-age population raised GDP by 6.58% in 2000, 10.20% in 2010, and 4.73% in 2021. Thus, these results do not reject the hypothesis that the relationship between demographic and economic dynamics varies over time, place, and circumstances and, therefore, cannot be generalized but should be studied at different scales.
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5
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FRANCISCO DEMETRIUS MONTEIRO RODRIGUES
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ANALYSIS OF MIGRATION NETWORK PROFILES IN BRAZIL: CONTEMPORARY TRENDS IN THE SPATIAL DISTRIBUTION OF THE POPULATION IN THE YEARS 2000 AND 2010
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Advisor : JÁRVIS CAMPOS
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COMMITTEE MEMBERS :
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JÁRVIS CAMPOS
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MOISES ALBERTO CALLE AGUIRRE
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WILSON FUSCO
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REINALDO ONOFRE DOS SANTOS
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ÁLVARO DE OLIVEIRA D'ANTONA
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Data: Apr 30, 2025
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Show Abstract
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Internal migration in the 21st century has become more dynamic, driven by economic, political, and social factors. In this context, spatial network analysis constitutes a relevant methodological tool for understanding population movements that are in constant transformation, as it enables the examination of connections between places and people, as well as the relational structure and composition of migratory flows. Furthermore, this analytical perspective allows for the analysis of more disaggregated geographical units, such as municipalities, facilitating the identification of the extent and spatial dispersion of migration networks. The main objective of this dissertation is to analyze the structure and dynamics of spatial migration networks between Brazilian municipalities, incorporating graph theory to identify trends and patterns within Brazil's migratory networks. The research adopted a methodology based on network analysis, grounded in graph theory, using data from the 2000 and 2010 Demographic Censuses and employing the Gephi software for network modeling and visualization. Metrics such as degree centrality, closeness centrality, and betweenness centrality were applied to assess the connectivity, hierarchy, and evolution of the networks. The results revealed greater integration within the Brazilian migratory network in 2010, with an increase in the number of connections, average degree, and link density, accompanied by a reduction in network diameter. This decrease in diameter, together with the increase in edge density, suggests a transition from a more hierarchical topology to a more distributed structure. Large urban centers, such as São Paulo and Brasília, remained strategic hubs, though with reduced centrality, reflecting a decentralization process and the emergence of new regional poles. Regarding the analysis of network profiles, significant differences were identified by gender, age, and education level, reflecting specific dynamics of displacement and connection between municipalities. With greater concentration in urban areas, female migration became predominant in the 2010 network, while a process of aging among the migrant population was observed over time. The composition of the network by education level revealed distinct topologies: migrants with low levels of education showed higher clustering coefficients in major urban centers and state capitals, whereas those with higher education formed more sparse and decentralized networks. These findings highlight the need for public policies that take into account the multifaceted nature of migration dynamics.
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6
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KAYCK DANNY BEZERRA DE ARAÚJO
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ON THE PATHS OF TRANSITION: USE OF BICYCLES FOR INTRA-URBAN TRAVEL IN BRAZIL IN THE SECOND DECADE OF THE 2000s
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Advisor : LUCIANA CONCEICAO DE LIMA
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COMMITTEE MEMBERS :
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CÉSAR AUGUSTO MARQUES DA SILVA
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IVANOVITCH MEDEIROS DANTAS DA SILVA
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LUCIANA CONCEICAO DE LIMA
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RICARDO OJIMA
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TATHIANE MAYUMI ANAZAWA
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Data: Aug 19, 2025
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Show Abstract
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This thesis aimed to identify and compare intra-urban mobility patterns using shared bicycles in four Brazilian urban centers (Rio de Janeiro, São Paulo, Porto Alegre, and Recife/Jaboatão/Olinda) during the second decade of the 2000s. Bicycle use has grown as an alternative to public transportation, whether for utilitarian, recreational, or work-related purposes, even in the face of structural limitations. In this context, shared bicycle systems emerge as a modern solution for active transportation, with the challenge of achieving intermodal integration in urban centers. The guiding research question was: considering the weaknesses in infrastructure and urban public transportation supply, what are the new mobility patterns and population flows of active transportation users in Brazilian urban centers? Three specific objectives were defined: 1) to analyze mobility patterns during the pre-pandemic, pandemic, and post-pandemic periods of Covid-19; 2) to identify connections between population characteristics, active mobility, and public transportation; and 3) to assess users’ perceptions regarding safety and well-being. Three hypotheses were tested: the pandemic significantly influenced mobility patterns, altering trip durations and flows; the availability of infrastructure and intermodal connections increases the use of bicycles; and users’ perceptions vary by region. A total of 59.1 million trips recorded by Tembici at 929 stations were analyzed, along with 271 responses from the Bike Barometer survey on cycling practices in three Brazilian regions. For the first objective, descriptive analysis and thematic maps were used with annual, monthly, weekly, and hourly data. For the second, data from the 2022 Census were used to correlate travel patterns with population density, the distribution of establishments, and the presence of public facilities. For the third, descriptive analysis of the Bike Barometer data was conducted, considering safety, comfort, and overall perception. The main results were: 1) a 7% increase in the number of trips after the pandemic, with an initial rise in average trip duration during the crisis, followed by stabilization; 2) a partial influence of household density, establishments, and public transportation on travel patterns; and 3) negative perceptions regarding safety, with reports of traffic conflicts, fear of physical violence, and accidents, with little regional variability. It is concluded that the pandemic temporarily impacted bicycle use, followed by a subsequent recovery. The infrastructure and surroundings of the stations partially influenced travel volume, while density indicators outside urban centers were not decisive for system expansion. Users’ perceptions were relatively homogeneous across regions, highlighting challenges related to safety and well-being. These findings contribute to urban mobility policies, supporting decisions regarding intermodality and the promotion of active transportation.
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7
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JULIO CESAR PONTES
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MATERNAL MORTALITY IN BRAZIL BEFORE AND DURING THE COVID-19 PANDEMIC: AN ANALYSIS OF TERRITORIAL AND RACIAL INEQUITIES
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Advisor : KARINA CARDOSO MEIRA
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COMMITTEE MEMBERS :
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ANGELITA ALVES DE CARVALHO
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COSME MARCELO FURTADO PASSOS DA SILVA
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GRACIMARY ALVES TEIXEIRA
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KARINA CARDOSO MEIRA
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LUCIANA CONCEICAO DE LIMA
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MOISES ALBERTO CALLE AGUIRRE
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Data: Oct 21, 2025
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Show Abstract
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Maternal mortality constitutes a violation of women’s sexual and reproductive rights. In Brazil, the Maternal Mortality Ratio (MMR) remains high and unevenly distributed, reflecting racial and territorial inequities sustained by structural determinants and institutional racism. The COVID-19 pandemic worsened this scenario by restricting timely access and degrading the quality of care across the pregnancy–postpartum continuum, thereby increasing risk and preventable deaths. We aimed to analyze the temporal association between the pandemic and MMR in Brazil, by Federative Unit (UF) and by race/color (white and Black women).We conducted an ecological time-trend study. Maternal deaths were obtained from the Ministry of Health Monitoring Panel (corrected records), and live births from SINASC/DataSUS microdata. In the descriptive analysis, annual MMR was estimated by UF, race/color, and cause (direct/indirect), reporting separately the MMR for pretas (Black), pardas (brown/mixed-race), and for negras (pretas + pardas; combined Black) to avoid masking racial inequities. Monthly MMR medians between the prepandemic period (Jan/2017–Mar/2020) and the pandemic period (Mar/2020–Dec/2022) were compared using the Mann–Whitney U test. For ITS analyses, we fitted negative binomial regression models including seasonality and accounting for residual autocorrelation; we estimated β₁ (pre-intervention trend), β₂ (level change at Mar/2020), and β₃ (post-intervention slope change), and reported relative risk (RR = exp[β]), 95% confidence intervals (95% CI), and p-values (α = 0.05).During the pandemic, maternal deaths increased by 28.5% (from 4,949 to 6,357), peaking in 2021. MMR rose in most UFs, more intensely and persistently among Black women, especially in the North and Northeast. In several states, the increase among pretas was roughly double that observed among white women; pardas also showed substantial increases. Both direct and indirect causes rose during the pandemic, with a pronounced surge in indirect causes among Black women. ITS results indicated a predominantly stationary pre-intervention trend. For total MMR, a significant level increase at the onset of the pandemic (RR_{β₂} > 1; p < 0.05) was observed in 15 UFs, with higher RRs in the North and Northeast, and a downward slope change during the pandemic (β₃ < 0; p < 0.05) only in Alagoas, Goiás, and São Paulo. Among Black women, there was an abrupt increase in 11 UFs—concentrated in the North and Northeast—without subsequent reversal (non-significant β₃). Among white women, a level change was identified in Ceará, Alagoas, Maranhão, and São Paulo, with a decreasing trend in São Paulo and Paraíba. The pandemic was associated with a widening of racial and territorial inequities in maternal mortality. These findings underscore the need for resilient obstetric-care policies grounded in racial and territorial equity, ensuring continuous, high-quality access to antenatal, intrapartum, and postpartum care.
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8
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VANESSA VIANA ÁLVARES DA NÓBREGA
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EFFECT OF DEFINED BENEFIT AND VARIABLE CONTRIBUTION MODALITIES IN LOCAL GOVERNMENT PENSION SCHEMES: FINANCIAL AND ACTUARIAL IMPACT ON MUNICIPALITIES AND CIVIL SERVANTS
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Advisor : CRISTIANE SILVA CORRÊA
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COMMITTEE MEMBERS :
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CRISTIANE SILVA CORRÊA
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HERICK CIDARTA GOMES DE OLIVEIRA
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LUANA JUNQUEIRA DIAS MYRRHA
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JOÃO VINICIUS DE FRANCA CARVALHO
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MÁRIS CAROLINE GOSMANN
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BERNARDO LANZA QUEIROZ
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Data: Oct 28, 2025
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Show Abstract
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Many Own Social Security Regimes (RPPS) face deficits that place pressure on public finances and compete with essential sectors such as health and education. These imbalances stem from financial factors (unfunded liabilities, declining revenues) and demographic trends (aging populations, reduced new entries), with heightened concern at the municipal level, where pension benefits often represent a significant portion of local income. Constitutional Amendment No. 103/2019 aimed to curb such pressures but, by expanding subnational autonomy in defining benefit calculations, it opened the door to alternative arrangements and made the debate on plan design essential to avoid poorly calibrated choices.
This study aims to analyze the financial and actuarial impacts of municipal RPPS adopting either the defined benefit (DB) or the variable contribution (VC) modality. It uses microdata from RAIS/2022 to simulate a standard population of 1,000 municipal civil servants and the Sadeprev software, based on Monte Carlo methodology, to track individual payment trajectories over 75 years. Comparing microsimulations of a pure DB plan and a hybrid model (DB = 1 minimum wage + VC), results indicate that plan design has a greater influence on long-term balance than contribution volume: the hybrid model reduces net disbursements and eases cash flow while preserving the minimum floor. Conversely, scenarios with higher contribution rates increase benefits but result in greater volatility and dispersion among individuals.
Alternative population profiles show that younger cohorts and early entrants accumulate more and generate lower actuarial costs, whereas older, female, and low-income groups rely more heavily on DB and compensatory mechanisms. From the perspective of the civil servant, benefits grow with income and capitalization time, but late entrants and individuals with early eligibility tend to receive lower amounts. Thus, by integrating actuarial and social perspectives, the study demonstrates that although the hybrid model may improve solvency, it transfers part of the risk to individuals and may exacerbate inequalities, requiring redistributive adjustments.
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