O reaproveitamento residual em espaço expositivo : alternativas materias para oficinas, estratégias para coleta e consciêntização

Monografia (graduação)—Universidade de Brasília, Instituto de Artes, Departamento de Artes Visuais, 2013.A arte é considerada uma prática muito cara devido ao custo dos materiais, porém com o conceito de sustentabilidade há a necessidade de se procurar materiais alternativos para compor as obras de artes e montar exposições. Objetivo deste trabalho é mostrar alternativas para o reaproveitamento do lixo como opção sustentável e relatar a experiência vivenciada pelo autor com o Programa Educativo do Centro Cultural Banco do Brasil

Polyphenol extraction by deep eutectic solvent for valorisation of portuguese green tea and their impact on chitosan-based films properties

The current demand for antioxidant active packaging, that is achieved by introducing antioxidants into food packaging material, is increasing due to both the unquestionable advantages compared to the addition of antioxidants directly to the food and the tendency to consume healthy and fresh products. When developing active packaging materials, research has been focused on natural and biodegradable polymers (such as polysaccharides like chitosan) containing polyphenol compounds (as bio preservative) in their formulation. Due to their rare solvation properties, the natural deep eutectic solvents (NADES), are considered good solvents to be used as an extraction medium of bioactive products. Moreover, the search for the use of ecological solvents for this field has intensified due to their acceptable toxicity profile and chemical diversity. The use of these inexpensive, non-volatile, and nonaqueous biodegradable solvents, complying with the Green Chemistry principles, could potentially improve the stability of the polyphenolic compounds allowing to retard food spoilage for packaging material, Catechins (components of green tea (GT)), a polyphenolic group known for its high value-added antioxidant properties, have been associated with health-promoting effects. In this sense, the incorporation of GT components for food application purposes and as active ingredient in packaging materials can be expected to improve food functionality and availability, while performing a dual role (antioxidant and antimicrobial agent) and possibly also having low-cost advantages. In this work, for the first time, a ternary deep eutectic solvent (ChCl/glycerol/lactic acid) was used as an environmentally friendly media for the extraction of polyphenolic compounds from green tea. The extraction solution was compared with traditional method and used to improve chitosan film properties. The casting method used to produce films with and without GT/NADES plasticizer. Transparent films were obtained and evaluated in terms of mechanical, water resistance, optical and microstructural properties. The results were compared with those obtained for chitosan films containing binary deep eutectic solvents (ChCl/glycerol and ChCl/lactic acid, with and without GT)) as plasticizers in their formulations.The work was supported through the project UIDB/50006/2020, funded by FCT/MCTES through national funds and by the AgriFood XXI I&D&I project (NORTE-01-0145-FEDER-000041 co-financed by European Regional Development Fund (ERDF), through the NORTE 2020. N Teixeira and Hiléia Souza thanks FCT for CEECIND/00025/2018/CP1545/CT0009 and PTDC/OCE-ETA/31250/2017 project respectively.info:eu-repo/semantics/publishedVersio

Increasing the resistance of common bean to white mold through recurrent selection

White mold, caused by Sclerotinea sclerotiorum (Lib.) de Bary is one of the most important diseases of the common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and traits related to disease avoidance such as architecture contribute to field resistance. The aim of this study was to verify the efficiency of recurrent selection in physiological resistance to white mold, “Carioca” grain type and upright habit in common bean. Thirteen common bean lines with partial resistance to white mold were intercrossed by means of a circulant diallel table, and seven recurrent selection cycles were obtained. Of these cycles, progenies of the S0:1, S0:2 and S0:3 generations of cycles III, IV, V and VI were evaluated. The best (8 to 10) progenies of the seven cycles were also evaluated, in two experiments, one in the greenhouse and one in the field. Lattice and/or randomized block experimental designs were used. The traits evaluated were: resistance to white mold by the straw test method, growth habit and grain type. The most resistant progenies were selected based on the average score of resistance to white mold. Subsequently, they were evaluated with regard to grain type and growth habit. Recurrent selection allowed for genetic progress of about 11 % per year for white mold resistance and about 15 % per year for the plant architecture. There was no gain among cycles for grain type. Progeny selection and recurrent selection were efficient for obtaining progenies with a high level of resistance to white mold with “Carioca” grain type and upright habit

Eulerian Video Magnification for Cleaning and Inspection of Air Conditioning Ducts With Rover Robot

This paper presents a diversied artifice of a Rover robot prototype in order to inspect abnormalities in air conditioning ducts and ventilation through an integrated rotating high-resolution camera system Eulerian Video Magnification is a  method capable of revealing temporal  variations of a body in videos that are impossible to see with the naked eye. Using this method, it is possible to visualize the flow of microorganisms present in the ducts, in which the images are R.W. transmitted in real time to the operator, allowing the cleaning with rotating brushes that adapt themselves  according to the  pipeline geometry, linked to the rover making the removal of impurities which are found on the walls, as well as the application of fungicides and bactericides, and finally the mechanism structure allows the manipulation of small objects held by a claw, which ensures greater operating flexibility compared to existing systems on the market. Due to weather problems being the main responsible for the considerable rise in temperature around the world, this has led man to seek ways by which people have comfort in both residential and industrial context. The most widely used alternative to soften or even solve this problem indoors has been the use of air conditioning systems. Despite the many advantages that these systems provide, there is great concern with the quality of air being supplied to the user according to the procedures and requirements of NBR 15848: 2010

Bioactivity effects of extracellular matrix proteins on apical papilla cells

Potent signaling agents stimulate and guide pulp tissue regeneration, especially in endodontic treatment of teeth with incomplete root formation. Objective: This study evaluated the bioactive properties of low concentrations of extracellular matrix proteins on human apical papilla cells (hAPCs). Methodology: Different concentrations (1, 5, and 10 µg/mL) of fibronectin (FN), laminin (LM), and type I collagen (COL) were applied to the bottom of non-treated wells of sterilized 96-well plates. Non-treated and pre-treated wells were used as negative (NC) and positive (PC) controls. After seeding the hAPCs (5×103 cells/well) on the different substrates, we assessed the following parameters: adhesion, proliferation, spreading, total collagen/type I collagen synthesis and gene expression (ITGA5, ITGAV, COL1A1, COL3A1) (ANOVA/Tukey; α=0.05). Results: We observed greater attachment potential for cells on the FN substrate, with the effect depending on concentration. Concentrations of 5 and 10 µg/mL of FN yielded the highest cell proliferation, spreading and collagen synthesis values with 10 µg/mL concentration increasing the ITGA5, ITGAV, and COL1A1 expression compared with PC. LM (5 and 10 µg/mL) showed higher bioactivity values than NC, but those were lower than PC, and COL showed no bioactivity at all. Conclusion: We conclude that FN at 10 µg/mL concentration exerted the most intense bioactive effects on hAPCs

Avaliação dos parâmetros abióticos e caracterização da comunidade zooplanctônica em um viveiro de cultivo de Litopenaeus vannamei (Boone 1931) em Curuçá, Pará, Brasil

This work aimed at to evaluate during a cultivation cycle (97 days) of L. vannamei with biweekly periodicity the community zooplanktonic and the parameters abiotic in two stations inside of a pond in the municipal district of Curuça, Pará. Zooplankton collections were accomplished and measured abiotic parameters: transparency, being pH, dissolved oxygen, salinity and temperature registered in the surface and close to the bottom. They were identified 34 zooplanktonic taxa , being Copepoda the most important group and Acartia lilljeborgi, Euterpina acutifrons, Oithona hebes, O. oswaldocruzi and Parvocalanus crassirostris the species that more they contributed to this dominance. The largest density registered for the zooplankton was of 162.000 org/m3 in the beginning of the cultivation (20/09) and to smallest it was 375 org/m3 on the 05/11. The diversity was also low tends averages of 1,34 bits/ind and 1,10 bits/ind in the stations 01 and 02, respectively. Enter the main conclusions: the copepods were the most abundant group and diversified, could represent an excellent alternative as natural food in the cultivation. In relation to the physics and chemistries variable the ones that had suffered influence from the cultivation, varying significantly throughout the time and that, therefore, deserve constant accompaniment had been: pH, dissolved oxygen and transparency, salinity and temperature if had kept constants and the investigated pond was considered a homogeneous ecosystem evaluating its depth and area.Este trabalho objetivou avaliar durante um ciclo de cultivo (97 dias) de L. vannamei com periodicidade quinzenal a comunidade zooplanctônica e os parâmetros abióticos em duas estações dentro de um viveiro no município de Curuça, Pará. Foram realizadas coletas de mesozooplâncton e medidos parâmetros abióticos: transparência, sendo pH, oxigênio dissolvido, salinidade e temperatura registrados na superfície e próximo ao fundo. Foram identificados 34 taxa zooplanctônicos, sendo Copepoda o grupo mais importante e Acartia lilljeborgi, Euterpina acutifrons, Oithona hebes, Oithona oswaldocruzi e Parvocalanus crassirostris as espécies que mais contribuíram para essa dominância. A maior densidade registrada para o mesozooplâncton foi de 162.000 org/m3 no início do cultivo (20/09) e a menor foi 375 org/m3 no dia 05/11. A diversidade também foi baixa tendo médias de 1,34 bits/ind e 1,10 bits/ind nas estações 01 e 02, respectivamente. Entre as principais conclusões: os copépodos foram o grupo mais abundante e diversificado, podendo representar uma excelente alternativa como alimento natural no cultivo. Em relação às variáveis físico-químicas as que sofreram influência do cultivo, variando significativamente ao longo do tempo e que, portanto, merecem acompanhamento constante foram: pH, oxigênio dissolvido e transparência, salinidade e temperatura se mantiveram constantes e o viveiro investigado foi considerado um ecossistema homogêneo avaliando sua profundidade e área

Protagonização do enfermeiro na educação em saúde da gestante adolescente

The aim was to understand the role of nurses in the health education of pregnant adolescents. This is an integrative review research, it includes the theoretical concepts of approach, the set of techniques that enable the construction of reality and the divine breath of the creative potential of the investigated. Related to the period from 2015 to 2019, 15 articles in Portuguese were evidenced, related to the theme of the study. For a better understanding of the study, it was decided to divide the topic in question into three different moments for discussion, which are Nurses' role in health education for pregnant adolescents; Role of the nurse as an educator in the health of pregnant adolescents and Nurse's guidelines regarding the prenatal care of pregnant adolescents. Health education is essential for the prevention of early pregnancy in Brazil and in the world. It is noteworthy that education should not be the competence of only one professional category, but of the entire multiprofessional team.Objetivou-se compreender a protagonização do enfermeiro na educação em saúde da gestante adolescente. Trata-se de uma pesquisa de revisão integrativa, inclui as concepções teóricas de abordagem, o conjunto de técnicas que possibilitam a construção da realidade e o sopro divino do potencial criativo do investigado. Relacionado ao recorte temporal de 2015 a 2019, foi evidenciado 15 artigos em português, relacionados à temática do estudo. Para maior compreensão com respeito ao estudo, optou-se por dividir o tema em questão em três momentos distintos para discussão, que são: Protagonização do enfermeiro na educação em saúde da gestante adolescente; Papel do enfermeiro como educador em saúde da gestante adolescente e Orientações do enfermeiro frente ao pré-natal da gestante adolescente. A educação em saúde é fundamental para a prevenção da gravidez precoce no Brasil e no mundo. Ressalta-se que a educação não deve ser competência apenas de uma categoria profissional, mas, de toda a equipe multiprofissional