A agricultura familiar do Seridó potiguar: vulnerabilidade, percepção e adaptação às mudanças climáticas

At the semiarid regions of developing countries the rural population has always been vulnerable to the climatic variations e its consequences. The effects of the semiarid climate, together with other biophysics, social and political-economic factors, impair the agricultural production, generating a situation of food insecurity and poverty in the rural areas. With the occurrence of climate change, natural resources of the semiarid regions can became scarcer, what would directly affect the agricultural production and those who depend on it. Therefore, the present study sought to study one of the most susceptible areas to the effects of the semiarid climate and desertification of Rio Grande do Norte, the potiguar s Serido. The study aimed to analyze the socioeconomic and environmental factors that put farmers in a position of vulnerability to the effects of climate; assess their perceptions about climate variations that have already occurred and their knowledge about climate change and global warming, also to identify which adaptation strategies to climate they have adopted at the rural establishment. The survey was conducted in 29 communities of four counties of the potiguar s Serido Caico, Parelhas, Lagoa Nova and Acari. Semi-structured interviews were conducted with local leaders and 241 questionnaires were applied with the family farmers. It was found that in addition to environmental factors such as the scarcity of water resources and climatic conditions, other factors such as the environmental degradation, the small size of the properties, the lack of technical assistance and financial resources and also the low education levels reduce the resilience capacity of family farming to the effects of the Semiarid climate. With the occurrence of climate change, the challenges for family farming at Serido will intensify. If farmers cannot adapt, the impacts may preclude this category of agricultural production causing serious harm to food security and further increasing the vulnerability situation of these populations. Although the farmers perceived changes in climate, the lack resources and information appears as the main reasons preventing the adoption of adaptation strategies. The lack of knowledge about climate change and global warming and the impacts that these phenomena may cause are also limiting factors for adaptation. It is therefore essential to identify the factors that influence the adoption of adaptation strategies, and seek alternatives to living with the semiarid that can strengthen the resilience of family farming and social reproduction that allow agricultural segment, even in a climate change scenario

Children's labour as a risky pathways to resilience: children's growth in contexts of poor resources

Nesse artigo, analisamos a questão do trabalho infantil como um fenômeno complexo, englobando fatores de risco por um lado e possíveis resultados positivos por outro. Baseados na teoria da resiliência e a partir de uma revisão de literatura, centrada em pesquisas que analisam a própria experiência de crianças sobre o trabalho desenvolvido, mostramos que quando inseridos em ecologias socialmente e fisicamente pobres em recursos, crianças associam sua experiência de trabalho como um caminho para assegurar recursos próprios para superação de adversidades. A compreensão de aspectos subjetivos da experiência de crianças trabalhadores nos permite considerar o trabalho como uma construção culturalmente embasada. Apesar da exploração de crianças não se configurar como o melhor para elas, há evidências de que elas usam quaisquer oportunidades disponíveis, incluindo o trabalho, para navegar em busca de recursos que necessitam e negociam por uma identidade associada à resiliência. Implicações para políticas públicas e intervenções também são discutidas.

Propriedades mecânicas de três fios de sutura no reparo do tendão do músculo flexor profundo do dedo de cães

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relação do meio físico com o manejo sustentável de plantio de eucalipto em áreas de terrenos acidentados - A Fazenda Santa Edwirges, Vale do Paraíba, Sudeste do Brasil

This study intends to evaluate the effects of landscape physical elements (rocks and relief) associated with silviculture activities. The study was carried out on a small farm (Fazenda Santa Edwirges) covered by Eucalyptus forested situated in the Paraiba do Sul Basin, Southeast Brazil. The methodology consisted of detailed geological and geomorphological studies at 1:10,000 scale, and laboratory analysis of soil physical properties. The results showed three geologic-geomorphologic associations (ridge escarpment with granitic rocks, steep and gentle hills cut by shear zones and gentle hill with alluvial sediments) present high vulnerability for the development of the physical processes such as accelerated erosion landslides and flooding. In contrast, mountains associated with gneissic rocks present smaller vulnerability and high resilience for the development of the physical processes. The results have showed the importance of considering the interactions among landscape physical for the eucalyptus forest management contributing to a better selection area for eucalyptus cultivation and minimize adverse environment impact in road design.

Perfil de textura em conserva de carne bovina (Corned Beef) submetida a diferentes tratamentos térmicos e sua relação com a concentração das proteínas dos tecidos muscular e conjuntivo colagenoso

Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

Análise densitométrica, histomorfométrica e biomecânica em fêmures de ratos submetidos à ausência de carga e atividade física em esteira

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Concepções de adolescentes sobre a escola: do risco à proteção

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo do efeito do extrato hidroglicólico de Bidens pilosa na expressão de genes relacionados à intergridade da pele

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Caracterização química, metalúrgica e estudo das propriedades mecânicas dos fios ortodônticos de titânio-molibdênio TMA

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Protagonismo juvenil e educação da juventude no ensino médio brasileiro

Pós-graduação em Educação - FFC

Influência dos sistemas de retenção e da inclinação do rebordo residual em casos de próteses conjugadas Classe I mandibular: análise da distribuição das tensões pelo método da fotoelasticidade

Pós-graduação em Odontologia - FOA

O papel da escola na vida de adolescentes vítimas de violência sexual: risco e proteção

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A sucessão ecológica em ambientes florestais em restauração: estrutura e dinâmica da regeneração natural

Ecological restoration aims to restore the self-sustainability potential of degraded environments. The successional trajectory of areas in restoration may differ from the reference ecosystem on a number of factors, especially the disturbance history of the area and management techniques applied in order to reverse the degradation scenario. In this sense, the objective of this study was to characterize the dynamics of natural regeneration and the structure of the regenerating community in an area of ecological restoration for 25 years on the right bank of the Rio Grande in the Power Station in Camargos that belongs to the Companhia Energetica de Minas Gerais - CEMIG, Nazareno, MG, in order to identify the current state of environmental regeneration. In November 2014, there was the first community inventory of seedlings existing in regeneration subplots (2 x 2 m) within the inclusion criteria (height ≥ 10 cm and DBH <5 cm), divided into 44 subplots (11 plots) in two areas, one area in restoration (REF) and a fragment of native vegetation (FRAG). In October 2015, the second sampling was carried out, in which individuals were resampled and recruits and dead individuals quantified. The parameters abundance, floristic similarity, density, dominance, importance value, equability, richness and diversity were analyzed in both samples. The dynamics was evaluated for the number of individuals and basal area in the period of 2014-2015 and individuals distributed according to height. The history of usage area provoked different behavior between the study environments; the patterns of the FRAG and REF communities along the years allowed the distinction between environments and demonstrated great environmental diversity, with differences in the abundance of species, floristic similarity, richness, diversity, vertical structure and dynamics parameters. In the REF area, there was a considerable increase in the density of individuals along the years and the establishment of different species. In this sense, the evaluation of natural regeneration in REF has shown that resilience is gradually being resumed, a necessary condition to support the potential for environmental self-sustainability. However, given the disturbance history, it can be concluded that the environment moves to an alternative state, which is possibly different from that prior to degradation.

Estrutura da floresta de restinga do Parque Estadual da Ilha Anchieta (SP): bases para promover o enriquecimento com espécies arbóreas nativas em solos alterados

Pós-graduação em Ciências Biológicas (Biologia Vegetal) - IBRC

Desenvolvimento inicial e nutrição de espécies arbóreas nativas sob ferlilização, em plantios de recuperação de áreas de cerrado degradado

Pós-graduação em Agronomia (Energia na Agricultura) - FCA