694 research outputs found

    Desfecho obstétrico na indução de trabalho de parto em gestações prolongadas no hospital universitário da Universidade Federal de Santa Catarina

    Get PDF
    Trabalho de Conclusão de Curso - Universidade Federal de Santa Catarina. Curso de Medicina. Departamento de Tocoginecologia

    Use of Expanded Shales, Clays and Slates-Light Weight Aggregate for Erosion Control and Grass Establishment on Un-vegetated Embankments

    Get PDF
    High salinity concentrations in soils used to renovation and construct levees adversely affect levee’s performance due to increased susceptibility for erosion problems. Dispersion of the soil particles caused by salts and seal formation affect levee structure stabilization and vegetation establishment is impaired due to lower water infiltration capacity in levees; and high osmotic pressure exerted by salts reducing water availability for seed germination leaving levee surface prone to severe rilling and soil loss from runoff erosion. The objectives of this research were determine if expanded shales, clays, and slates-light weight aggregate (ESCS-LWA) over clay reduces erosion and evaluate how ESCS-LWA affects vegetation establishment from seed. Alternatives to soft armoring erosion protection such as concrete t-walls, concrete covering or rock applications are expensive and could limit levee expansion. The use of mulches such as ESCS-LWA can significantly reduce soil erosion and pollutant transfer as a transition to vegetation establishment. Aggregate particle reduce evaporation at the soil surface during wet periods by disrupting the soil-atmosphere continuum. The ability of ESCS-LWA to reduce erosion and increase water availability should allow for increased seed germination and plant growth. To test this hypothesis, four ESCS-LWA treatments (0, 50, 100, 150% ground coverage) were applied to bare soil and seeded with 75 kg PLS bermudagrass ha-1. Treatments were subjected to a rainfall simulation at 75 mm hr-1 at 30% slope for a 30-min runoff period in a greenhouse. Prior to simulation soil moisture was recorded with runoff volume and total solids (TS) collected during simulation. The ESCS-LWA increased the time until the onset of runoff and reduced TS losses \u3e90% compared to bare soil. Increasing ESCS-LWA coverage resulted in higher soil moisture for 30 days post-rainfall simulation with 50% and 100% ground cover resulting in the highest bermudagrass coverage and biomass

    Integration of Remote Sensing Approaches for In-Season Nitrogen Management

    Get PDF
    Nitrogen (N) management is being conducted at flat rate in Louisiana due to practicality and convenience, but the price of N fertilizer and high breakeven costs are forcing producers to find ways to reduce costs and optimize N application. In this scenario, precision agriculture technologies, specifically the use of optical sensors on board of unmanned aerial systems (UAS) to variable rate N application on farm is showing a promising approach to save inputs and reduce environmental impacts. However, the general goal of this research was to develop and evaluate in-season N management approaches for N recommendation in corn (Zea mays L.) fields using plant canopy sensors and UAS. The specific objectives were to: 1) investigate the differences in spectral reflectance bands and vegetation indices for sensing the N status of corn, through different hours of the day, under different weather conditions and sun irradiation angulation; and 2) evaluate an in-season N fertilizer recommendation algorithm based on an approach that reflects local conditions and needs for N fertilization using active crop canopy sensor and unmanned aircraft systems coupled with multispectral camera, and to validate and compare the algorithm proposed with other approaches. The experiments were conducted in three fields at the LSU Doyle Chambers Central Research Station located at Ben Hur Road, Baton Rouge, LA, 30.365°N, -91.166°W, with continuous corn during the growing seasons from 2018 to 2021. To investigate time of the day effects on active and passive sensor systems the experiment was conducted at the same location in corn during a day with percentages of cloudy coverage conditions varying from 80 to 100 %, with very few moments of cloud dispersion resulting in 100% of clear sky at the target area. The conclusion in this experiment addressing objective 1 is that the data obtained from passive sensors (commercial UAS camera and spectroradiometer), contrarily to the active crop canopy sensor, presented prominent significant variations in measurements at different times of the day, especially observed when ambient conditions changed solar radiation. This indicates higher sensitivity to changes during the day for the wavebands and vegetation indices derived using these sensors. For objective 2, the main conclusions are: (i) a practical and easy to implement algorithm approach was proposed and validated considering local conditions and implemented in-season, (ii) the use of the Chlorophyl Red Edge Vegetation Index (CIRE) obtained from the crop canopy reflectance with the approaches developed from local data to manage N status, can address spatial variability presented in fields through the different responses obtained for N fertilization across the sites analyzed, and (iii) the virtual approaches using both active and passive sensors, indicated relatively better performances based on yield and partial factor productivity (PFP) responses. Due to the easy implementation this finding suggests that this approach has great potential to be applied for N recommendations regardless of the type of sensor used to collect data

    As expressões da "questão social" na formação social brasileira da década de 1950 até o fim da ditadura civil-militar

    Get PDF
    Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Instituto de Ciências Humanas, Departamento de Serviço Social, 2018.Este trabalho teve por objetivo analisar as expressões da “questão social” na formação social Brasileira da década de 1950 até o fim da ditadura civil-militar. Com a finalidade de refletir sobre os impactos dos processos de transformação capitalista na organização e na estruturação da burguesia brasileira, assim como nas suas consequências e reflexos sobre a vida e as lutas sociais da classe trabalhadora no contexto deste período. Desta forma baseando-se no método materialista-histórico-dialético e tendo-se como procedimento metodológico a análise teórico-bibliográfica, a análise engloba as decorrências das investidas imperialista na década de 1950 no Brasil, as correlações de forças que envolveram o processo de irrupção e consolidação do capitalismo monopolista e a configuração das lutas sociais no seu processo de avanço até fim da ditadura civilmilitar. O estudo realizado nos permitiu apreender que a consolidação do capitalismo monopolista no contexto brasileiro, se configurou num processo em que as requisições imperialistas em função da acumulação extraordinária, movimentaram a construção de uma autocracia burguesa que direcionada à superexploração do trabalho, à repressão política e ao autoritarismo, com base no resgate das piores tradições que perpassam a Formação Social Brasileira. A “questão social” nesse sentido se expressa num quadro de supressão das lutas sociais, das organizações e da vida política da classe trabalhadora.This study aimed to analyze the expressions of the "social question" in the Brazilian social formation of the 1950s until the end of the civil-military dictatorship. With the purpose of reflecting on the impacts of the processes of capitalist transformation on the organization and structure of the Brazilian bourgeoisie, as well as its consequences and reflexes on the life and social struggles of the working class in the context of this period. In this way, based on the materialist-historical-dialectical method and having as a methodological procedure the theoretical-bibliographic analysis. The analysis encompasses the consequences of the imperialist onslaughts in the 1950s in Brazil, the correlations of forces that involved the process of capitalist irruption and consolidation, and the configuration of social struggles in their process of advancement to the civilmilitary. The study allowed us to understand that the consolidation of monopoly capitalism in the Brazilian context was a process in which imperialist requisitions due to extraordinary accumulation, moved the construction of a bourgeois autocracy in the form of the technocratic state the political repression of movements, authoritarianism and the rescue of the worst traditions that permeate the Brazilian Social Formation. The “social question” Aiming expressions at suppressing the social struggles, of organizations and the political life of the working class

    Aplicação de água residuária de suínos no sistema silvipastoril

    Get PDF
    Brazil is the fourth largest pork producer in the world, with a growing international insertion, earning more than US 1billionperyear,reaching3 1 billion per year, reaching 3% of production and 11% of world exports. With the increase in swine production, we also have an increase in the production of swine wastewater (ARS), which, when handled poorly, may contain a high potential for environmental pollution. The objective of this work was to evaluate the influence of the application of different doses of swine wastewater intercropped with citriodora, on the chemical properties of the soil, on the concentrations of macro and micronutrients in an area implanted with silvopastoral system. The work was carried out at Fazenda Bonsucesso, on the Campo Florido Km 20 highway, located in the city of Uberlândia-MG. The planting of Corymbia citriodora seedlings was carried out in double rows, with a spacing of 2 meters between plants and 3 meters between rows and 15 meters between double rows. The experimental plots were 10 meters long, containing 5 plants in each simple line, totaling 10 plants in the plot, by 6 meters wide, with an area of 60 m2, where the treatments were applied. The treatments used were five doses of ARS (0; 200; 400; 600 and 800 m³ ha-1) with five replications. The applications of ARS doses were split in June, July and August 2015. The chemical characteristics of the soil were evaluated, in layers 0-20, 20-40 and 40-60 cm deep. A randomized block design was used in an arrangement of subdivided plots, with the ARS doses being the plots and the depth the subplot. Analysis of variance with regression test and Tukey was performed using the Sisvar statistical program (FERREIRA, 2010). The application of swine wastewater in depth promotes an increase in the Cu content in the dose of 400 and 800 m3 ha-1 year-1. At the depth of 0-20 there was a higher concentration of micronutrients. Swine wastewater did not influence the increase in macronutrients in the third year of application. There was an increase in the levels of K, Mg and Ca that tend to increase in the coming years, in relation to the beginning of the experiment.Trabalho de Conclusão de Curso (Graduação)O Brasil é o quarto maior produtor de carne suína no mundo, com uma crescente inserção internacional, lucrando mais de US 1 bilhão por ano, chegando a 3% da produção e 11% das exportações mundiais. Com o aumento da produção de suínos, temos também um incremento na produção de água residuárias de suinocultura (ARS), que quando mal manejada, está pode conter alto potencial de poluição ambiental. O objetivo do trabalho foi avaliar a influência da aplicação de diferentes doses de água residuária de suinocultura consorciada com citriodora, nas propriedades químicas do solo, nas concentrações de macro e micronutrientes em uma área implantada com sistema silvipastoril. O trabalho foi realizado na Fazenda Bonsucesso, na rodovia Campo Florido Km 20, localizada no município de Uberlândia-MG. O plantio das mudas de Corymbia citriodora foi realizado com arranjo em linhas duplas, com espaçamento de 2 metros entre plantas e 3 metros entre linhas e 15 metros entre as linhas duplas. As parcelas experimentais foram de 10 metros de comprimento, contendo 5 plantas em cada linha simples, totalizando 10 plantas na parcela, por 6 metros de largura, com uma área de 60 m2, onde foram aplicados os tratamentos. Os tratamentos utilizados foram cinco doses de ARS (0; 200; 400; 600 e 800 m³ ha-1) com cinco repetições. As aplicações das doses de ARS foram parceladas nos meses junho, julho e agosto de 2015. Foram avaliadas as características químicas do solo, nas camadas de 0-20, 20-40 e 40-60 cm de profundidade. Foi utilizado o delineamento em blocos casualizados em arranjo de parcelas subdivididas, sendo as doses de ARS as parcelas e a profundidade a subparcela. Foi feita análise de variância com teste regressão e Tukey utilizando o programa estatístico Sisvar (FERREIRA, 2010). A aplicação de água residuária de suínos em profundidade promove aumento no teor de Cu na dose de 400 e 800 m3 ha-1 ano -1. Na profundidade de 0-20 houve maior concentração de micronutrientes. Água residuária de suínos não influenciou no aumento de macronutrientes no terceiro ano de aplicação. Houve um aumento nos teores de K, Mg e Ca que tendem a crescer nos próximos anos, em relação ao início do experimento

    SOCIEDADE DE CONSUMO E PRODUÇÃO INDUSTRIAL EM MASSA: INFLUÊNCIAS NA SUSTENTABILIDADE AMBIENTAL.

    Get PDF
    As várias mudanças ocasionadas pela Revolução Industrial e intensificadas pela globalização trouxeram o consumo não apenas como meio para acesso a uma diversidade crescente de produtos, mas também, especialmente, como hábito estimulado para satisfazer desejos e necessidades supérfluas, quase como um dever de cidadania. O crescente e descontrolado ritmo de produção, para o abastecimento deste mercado, aliado ao consumo irracional promoveu a degradação do meio ambiente em níveis exorbitantes. Considerando que o meio ambiente sadio e ecologicamente equilibrado é um direito fundamental ainda a ser concretizado, deve-se buscar uma adequação mais racional para controle das conseqüências negativas à sustentabilidade ambiental, através da construção de um senso de educação com o meio ambiente, como forma para se alcançar um modelo sustentável de desenvolvimento, formando consumidores conscientes e responsáveis pelo seu papel na sociedade

    A Framework for Learning by Demonstration in Multi-teacher Multi-robot Scenarios

    No full text
    As robots become more accessible to humans, more intuitive and human-friendly ways of programming them with interactive and group-aware behaviours are needed. This thesis addresses the gap between Learning by Demonstration and Multi-robot systems. In particular, this thesis tackles the fundamental problem of learning multi-robot cooperative behaviour from concurrent multi-teacher demonstrations, problem which had not been addressed prior to this work. The core contribution of this thesis is the design and implementation of a novel, multi- layered framework for multi-robot learning from simultaneous demonstrations, capable of deriving control policies at two different levels of abstraction. The lower level learns models of joint-actions at trajectory level, adapting such models to new scenarios via feature mapping. The higher level extracts the structure of cooperative tasks at symbolic level, generating a sequence of robot actions composing multi-robot plans. To the best of the author's knowledge, the proposed framework is the first Learning by Demonstration system to enable multiple human demonstrators to simultaneously teach group behaviour to multiple robots learners. A series of experimental tests were conducted using real robots in a real human workspace environment. The results obtained from a comprehensive comparison confirm the appli- cability of the joint-action model adaptation method utilised. What is more, the results of several trials provide evidence that the proposed framework effectively extracts rea- sonable multi-robot plans from demonstrations. In addition, a case study of the impact of human communication when using the proposed framework was conducted, suggesting no evidence that communication affects the time to completion of a task, but may have a positive effect on the extraction multi-robot plans. Furthermore, a multifaceted user study was conducted to analyse the aspects of user workload and focus of attention, as well as to evaluate the usability of the teleoperation system, highlighting which parts were necessary to be improved

    Description of the first juvenile stage of the fiddler crab Minuca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae)

    Get PDF
    The first stage of the fiddler crab Minuca mordax is described here. Zoea larvae obtained from four ovigerous female were reared in the laboratory until the development of the first crab stage. The development from zoea I to the first juvenile instar lasted 35 days after hatching. The first crab stage of Minuca mordax can be morphologically distinguished from those of Minuca burgersi and Leptuca cumulanta by a 2‑segmented antennule endopod (3‑segmented in M. burgersi, unsegmented in L. cumulanta), an unsegmented maxillule endopod (2‑segmented in M. burgersi and L. cumulanta), and a 4‑segmented first and second maxilliped endopod (respectively unsegmented and 5‑segmented in M. burgersi and L. cumulanta). The three species have the following characters in common: segmented peduncle of antennule 2; endopod of antennule unsegmented; presence of aesthetascs on the antennule; peduncle of antenna 3‑segmented; flagellum of antenna 6‑segmented; mandible 3‑segmented; maxilla with coxal and basal endite bilobed; first, second and third maxillae with exopod 2‑segmented and abdomen with six somites that are wider than long
    corecore