DSpace Coleção:
http://repositorio.unifap.br:80/jspui/handle/123456789/77
2024-03-29T00:32:08ZSojicultura no Amapá: desafios e oportunidades
http://repositorio.unifap.br:80/jspui/handle/123456789/398
Título: Sojicultura no Amapá: desafios e oportunidades
Abstract: The present study seeks to analyze the socioeconomic challenges and opportunities provided by the implementation of soybean agribusiness in the State of Amapá. The State has gained importance in the eyes of modern farmers and hegemonic companies, especially logistic investments, given its geographically strategic position, and the amount of land available at a more price when compared to other regions. The establishment and expansion of soybeans in Amapá takes place in a context of productive changes, as a condition for the strengthening of the economy, Amapá is configured in a privileged area for these productive changes, mainly due to its condition as an agricultural frontier. Understanding the consequences of soybean farming in the amapaense territory will enable a better understanding of social and economic changes, since through the soybean production chain and its extensions, solutions for rural growth and development can be created. agriculture to abandon its "artisanal" characteristics and become a dynamic sector of the economy. The presence of agribusiness in Amapá is a concrete fact, the search for new areas for the expansion of soybeans, has placed Amapá in the agribusiness of grains, although the activity is still seeking its consolidation. The moment experienced by Amapá, with respect to grain agriculture, is in an embryonic stage, since the implantation phase is still being planned, but other variables corresponding to the productive circuit begin to point to good perspectives horizons in the development of the activity in the State0027-10-10T00:00:00ZAnálise da sustentabilidade dos municípios do Estado do Amapá a partir dos indicadores do Programa Cidades Sustentáveis
http://repositorio.unifap.br:80/jspui/handle/123456789/397
Título: Análise da sustentabilidade dos municípios do Estado do Amapá a partir dos indicadores do Programa Cidades Sustentáveis
Abstract: The Sustainable Cities Program aims to sensitize and mobilize cities to develop in an economically, socially and environmentally sustainable way, it has an online platform that includes 260 indicators grouped in 12 thematic axes that help managers to formulate a Municipal Goals Plan in order to achieve the Sustainable Development Goals established by the United Nations Organization. This paper aims to analyze the cities´sustainability degree in the state of Amapá by calculating a Municipal Sustainability Index (ISM), showing the potentialities and weaknesses of municipalities, in order to assist public managers indecision-making, as well as to stimulate society in the monitoring of public management. Data were collected using online data bases, then they were standardized and aggregated according to the same Human Development Index methodology. Each axis produced partial results that subsidized the elaboration performance ranking of the municipalities according to the ISM. Serra do Navio, Macapá e Santana stood out positively, on the other hand, Cutias e Mazagão stood out negatively. In order to explain the results of Serra do Navio, it was highlighted the investments in infraestructure applied by the company Ore Trade Industry S.A(ICOMI, Portuguese acronym)in the past, and the results of Macapá and Santana were explained by the historical importance of both for the development of the Estate, as well as their recognized relation of complementarity of functions, which introduced the creation of the Metropolitan Region of Macapá (RMM). About the results for Mazagão, which is also part of the RMM, the dissimilarity of the other two cities was attributed dueto its late insertion in the RMM justified by the historical geographical isolation of the city, that made it dificult to share the benefits of the RMM, resulting in a difference in the degree of sustainability. Cutias, on the other hand, presented an atypical below-expected result, which was justified especially by the absence of accountability0030-10-10T00:00:00ZImpactos sociambientais da Hidrelétrica Santo Antônio do Jari: a percepção de comunidades afetadas
http://repositorio.unifap.br:80/jspui/handle/123456789/395
Título: Impactos sociambientais da Hidrelétrica Santo Antônio do Jari: a percepção de comunidades afetadas
Abstract: The research analyze the socioeconomic and environmental impacts produced by the construction of the Santo Antônio do Jari Hydroelectric Power Plant, based on the perception of the affected communities. The research was carried out with the communities in the city of Laranjal do Jari, in Amapá, residents of the area of direct influence of the hydroelectric plant. This study is a qualitative research, in which field research was carried out between the months of July and November of 2018. Data were collected through snowball sampling and the application of 42 semi-structured forms with open and closed questions that allowed the identification of local stakeholders' expectations regarding the hydroelectric plant and the socioeconomic and environmental impacts resulting from the presence of the hydroelectric plant in the region and questions related to access to natural resources after the installation of the hydroelectric plant. To assist the analysis, secondary data sources were explored such as studies and reports of environmental impact and monitoring of hydroelectric activities. For the analysis and interpretation of the data, the Bardin content analysis technique was used. The results show that the communities affected by the Santo Antônio do Jari hydroelectric plant experience the negative impacts resulting from the environmental changes generated, mainly by the formation of the reservoir. These impacts include reallocating communities, reducing availability and access to natural resources, loss of livelihoods, threats to food security, and lifestyle change. The reality of the communities is marked by relocation, by the decline of the availability of natural resources, impairing food self-sufficiency, the use of areas with cultural and spiritual values, and interfering with socioeconomic activities. For the communities, they have to adapt to the new imposed life and to establish new socio-cultural relations with the new physically transformed environment0031-10-10T00:00:00ZEfeitos dos componentes químicos de duas espécies de madeiras amazônicas na hidratação do cimento Portland
http://repositorio.unifap.br:80/jspui/handle/123456789/394
Título: Efeitos dos componentes químicos de duas espécies de madeiras amazônicas na hidratação do cimento Portland
Abstract: The production of bio composites from lignocellulosic residues from legalized sawmills in the
Amazon region is an alternative to improper disposal in the environment. These materials can
be used for the production of agglomerated panels of cement - wood used for rapid construction
and at low residences cost. However, the wood chemical components (cellulose, hemicelluloses, lignin, extractives, minerals) may react adversely with the cement phases during hydration, causing the retardation / inhibition of the setting, characterizing the incompatibility between both materials. In order to analyze the chemical compatibility of the two materials, the contents of cellulose, hemicelluloses, lignin, total extractives and ashes, respectively, were isolated from the sawdust of two species of Amazonian woods: Dizinia excelsa (38.53% ± 1.14; , 24.95% ± 0.35%, 17.80% ± 0.58, 0.70% ± 0.05) and Dipteryx odorata (41.22% ± 0.35, 29.32% ± 0.64, 37.61% ± 0.39, 14.22% ± 0.38, 1.15% ± 0.03). The extractives were removed by cold water, hot water in a water bath, hot water by filtration and hot water in Soxhlet apparatus, respectively: Dinizia excelsa (33%, 63%, 81% and 99%) and Dipteryx
odorata (25%, 47%, 68% and 92%). The results of X- Rays Diffraction (XRD) suggest that: 1)
the Portlandite phase precipitates on the cellulose during cement hydration; 2) the hemicelluloses delay the hydration of the cement, but the delay effect depends on the amount of hemicelluloses that react in the alkaline medium; 3) The higher Syringyl / Guaicyl (S/G) lignin ratio of Dinizia excelsa renders it more susceptible to degradation in alkaline medium, exposing cellulose micro - fibrils and allowing the Portlandite precipitation on them. In addition, lignin does not retard the hydration of Tricalcium aluminate (C3A), retarding the Tricalcium silicate (C3S) particles preferentially. 4) The polar extractives are efficient retarders and can be classified in two groups: initial and late retarders. 5) The ashes of the species studied did not cause delay or inhibitory effect during hydration. 6) Hot water treatment in Soxhlet apparatus showed better results for both species and can be used to improve the compatibility
of cement-wood composites. The experimental results suggest that wood with higher content of hot water-soluble removable extractives, higher S / G ratio and low quantity of inhibitory hemicelluloses, such as Dinizia excelsa, should be used for cement - wood composites, due to the greater compatibility with the cement chemicals0029-11-09T00:00:00Z