391 research outputs found

    Percepção dos formandos do curso de graduação em Odontologia da Universidade Federal de Santa Catarina, após dez anos de novo currículo.

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    TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.Os objetivos foram demonstrar se as mudanças curriculares estão em ação, na formação de Cirurgiões Dentistas, quantificar e apontar os pontos positivos e negativos na sua formação, pois a mudança que ocorreu no currículo, saiu de um modelo assistencialista, modelo que trata doente, para um modelo generalista, humanista, crítico e reflexivo, que pode atuar em todos níveis de atenção, sempre pautado nas realidades sociais. Este estudo de conclusão de curso vem demonstrar a percepção dos alunos da décima fase do Curso de graduação em Odontologia da UFSC, que se formaram no primeiro semestre do ano de 2017, sobre a nova realidade relativa ao novo currículo, vinda das DCNs, bem como sua visão de forma qualitativa, de como foi sua formação ao longo de seus cinco anos de formação. O método utilizado foi a aplicação de um questionário nos alunos da décima fase do Curso de Graduação em Odontologia da UFSC. A partir dos resultados coletados foram feitas as análises e interpretações confrontando com a legislação vigente. Podemos concluir que o processo político pedagógico do curso não encontra-se em total atividade. Os alunos, em sua maioria (80,6%), referem não se sentirem totalmente preparados para exercer sua atividade profissional. Reconhecem a qualidade do corpo docente da instituição e apontam outros motivos para esse fato, como: excesso de disciplinas de interação comunitária, necessidade de melhor infra-estrura, mais aulas práticas e maiores ensinamentos na área de administração e gerenciamento. Ainda na visão dos alunos, as clinicas multidisciplinares deveriam somente acontecer nos estágios supervisionados na nona e décima fases e as clinicas do eixo profissionalizante deveriam ser por disciplinas isoladas.The objectives were to demonstrate if the curricular changes are in action, in the formation of Dental Surgeons, to quantify and point out the positive and negative points in their formation, since the change that occurred in the curriculum, went from a care model, A generalist, humanist, critical and reflexive model that can act in all levels of attention, always based on social realities. This course conclusion study demonstrates the students' perception of the tenth phase of the Graduation Course in Dentistry of UFSC, which were formed in the first half of 2017, about the new reality regarding the new curriculum, coming from the DCNs, as well as His vision of a qualitative way, of how was his formation during his five years of formation. The method used was the application of a questionnaire in the students of the tenth stage of the Graduation Course in Dentistry of UFSC. From the results collected, the analyzes and interpretations were made in relation to the current legislation. We can conclude that the political pedagogical process of the course is not in full activity. The majority of the students (80.6%) reported not feeling fully prepared to carry out their professional activity. They acknowledge the quality of the institution's teaching staff and point out other reasons for this fact, such as: excess of community interaction disciplines, need for better infrastructure, more practical classes and greater teaching in the area of administration and management. Still in the view of the students, multidisciplinary clinics should only happen in the supervised stages in the ninth and tenth phases and the clinics of the vocational axis should be by isolated disciplines

    Methods for bitter pit prediction in Fuji and Braeburn apples

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    Experimentos foram conduzidos com objetivo de avaliar a eficiência de métodos para predição da ocorrência de bitter pit em maçãs 'Fuji' e 'Braeburn' em duas épocas de amostragem. Os frutos, provenientes de seis pomares distintos, três para cada cultivar, foram coletados antecipadamente (20 dias em relação à colheita) e na data prevista para a colheita comercial. Os métodos de predição utilizados foram: a) infiltração dos frutos com solução 0,10M MgCl2 mais 0,01% Tween-20 e 0,4M de sorbitol; b) imersão dos frutos em solução com 2500nL L-1 de ethephon mais 0,01% Tween-20. Os frutos foram armazenados em atmosfera controlada (AC) por cinco meses mais 12 dias, a 20°C, simulando a incidência real de bitter pit em armazenamento comercial. Cada tratamento foi constituído por quatro repetições de 25 frutos. A incidência e severidade de bitter pit, prevista por ambos os métodos foi semelhante à ocorrência real de bitter pit após o armazenamento em atmosfera controlada para cada uma das cultivares utilizadas, quando os frutos foram amostrados antecipadamente em relação à colheita comercial. Na avaliação realizada com frutos amostrados na colheita comercial, nenhum dos métodos foi capaz de prever a incidência de bitter pit após o armazenamento de maneira confiável. Para ambas as cultivares, a infiltração com magnésio e a imersão dos frutos em ethephon só são eficientes na predição da incidência de bitter pit em frutos coletados 20 dias antes da colheita comercial.Experiments were carried out with objective to evaluate the efficiency of methods for bitter pit prediction in 'Fuji' and 'Braeburn' apples sampled at two harvest dates. Fruits from 6 orchards, three for each cultivar, were sampled earlier (20 days before harvest) and at commercial harvest date. The prediction methods assessed were: infiltration of apples with 0.10M MgCl2 solution containing 0.01% Tween-20 and 0.4M sorbitol; and immersion of fruits in 2.500nL L-1 ethephon solution plus 0.01% Tween-20. Four replications of 25 fruits of each orchard were stored on controlled atmosphere (CA) during five months plus 12 days at 20°C in order to assess the real bitter pit occurrence. Both methods showed incidence and severity similar to real bitter pit occurrence after storage for both cultivars sampled 20 days before harvest. On the other hand, none method was able to predict the incidence of bitter pit after CA storage for fruits sampled at commercial harvest. The magnesium infiltration and immersion of fruits on ethephon only are efficient to predict bitter pit incidence on fruits when sampled 20 days before commercial harvest

    Perfil de compra de consumidores em redes sociais: traços iniciais

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    Atualmente se ouve falar muito em redes sociais, e, quanto às empresas que usam a publicidade dentro das redes, estas têm influenciado o comportamento dos usuários que possuem perfil cadastrado nestas redes. Saber o que se passa na cabeça desse novo consumidor digital é um mistério para os profissionais de marketing que atuam dentro das empresas, pois mapeando melhor seus clientes e suas necessidades se podem criar produtos e serviços que os atendam. O presente trabalho busca analisar como a publicidade veiculada dentro das redes sociais na internet vem atingindo seus usuários e se elas influenciam o processo de decisão de compra de determinadas marcas/produtos ou serviços dentro destas redes. Palavras-chave: Redes sociais. Twitter. Facebook. Orkut. Internet

    ANÁLISE DE MELHORAMENTO DE SOLO COM A UTILIZAÇÃO DE CIMENTO E RESÍDUO GERADO NA PRODUÇÃO DO BIODISEL

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    Peanut yield under irrigation levels in off-season cultivation

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    Water deficit is considered the most critical environmental factor for peanut production in Brazil, as it constitutes one of the major constraints to the expansion of its cultivation in the suitable crop zones of the country. Determining crop water demand is fundamental to increasing yield with lower water consumption. The present study aimed to evaluate the effects of full and deficit irrigation levels (L1 = 8%, L2 = 27%, L3 = 63%, L4 = 94% and L5 = 100% replenishment of crop evapotranspiration) on the development, growth and yield of peanut crop sown in two times, February and March. Treatments were distributed in a split-plot randomized complete block design, with four replicates, using a line-source sprinkler system. Irrigation depths from 65 to 314 mm were applied with the levels L1 to L5 during the first and second cropping cycles. Full irrigation with sowing in March was more advantageous due to yield increase of up to 30% compared to sowing in February, but crop cycle was 25 days longer. Water stress caused by deficit irrigation reduced plant height, seed mass and pod yield, while full irrigation (L5) led to yields from 4,141 to 5,102 kg ha-1 for February and March, approximately three times higher than those obtained with the lowest irrigation level (L1). Highlights Peanut has great importance in the food and industry of several countries. The results of this research apply to regions that require irrigation, which is of about 70% of the areas of the globe with this legume. This paper contributes with information that emphasizes the possibility of cultivation in the drought season, aiming at the expansion of the crop and the production of quality seeds using irrigation.Water deficit is considered the most critical environmental factor for peanut production in Brazil, as it constitutes one of the major constraints to the expansion of its cultivation in the suitable crop zones of the country. Determining crop water demand is fundamental to increasing yield with lower water consumption. The present study aimed to evaluate the effects of full and deficit irrigation levels (L1 = 8%, L2 = 27%, L3 = 63%, L4 = 94% and L5 = 100% replenishment of crop evapotranspiration) on the development, growth and yield of peanut crop sown in two times, February and March. Treatments were distributed in a split-plot randomized complete block design, with four replicates, using a line-source sprinkler system. Irrigation depths from 65 to 314 mm were applied with the levels L1 to L5 during the first and second cropping cycles. Full irrigation with sowing in March was more advantageous due to yield increase of up to 30% compared to sowing in February, but crop cycle was 25 days longer. Water stress caused by deficit irrigation reduced plant height, seed mass and pod yield, while full irrigation (L5) led to yields from 4,141 to 5,102 kg ha-1 for February and March, approximately three times higher than those obtained with the lowest irrigation level (L1). Highlights Peanut has great importance in the food and industry of several countries. The results of this research apply to regions that require irrigation, which is of about 70% of the areas of the globe with this legume. This paper contributes with information that emphasizes the possibility of cultivation in the drought season, aiming at the expansion of the crop and the production of quality seeds using irrigation

    Simultaneous bilateral femoral neck fracture in a patient with renal osteodystrophy

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    AbstractWe present a unique case of displaced simultaneous bilateral fractures, Garden 3 type, in a 49year woman treated with non-cemented total hip arthroplasty. The patient showed a Harris hip score of 86 on the right hip and a 81 on the left side on the fourth postoperative year, besides a bilateral Trendelenburg gait, more pronounced on the right side. She needed a cane to walk, and felt pain in the left thigh. The X-ray showed a shortening of 0.9cm and a left femoral varus. The other arthroplasty components showed good osseointegration and position.We found that the use of the uncemented total hip arthroplasty to treat a simultaneous bilateral fracture in renal osteodystrophy patients has satisfactory results at a four year follow-up.According to the OCEBM Levels of Evidence Working Group, this study is graded as a Level of Evidence IV

    PRESSURIZED WATER PRETREATMENT TO INCREASE SUGAR PRODUCTION FROM GREEN COCONUT

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    Pretreatment of lignocellulosic industrial waste is necessary to promote the cellulose accessibility. Thus, this study evaluated the production of green coconut sugars during pressurized hydrothermal pre-treatment and enzymatic hydrolysis of the pretreated biomass. Pretreatment of the green coconut shell was carried out at 70 °C, 150 bar and water flow rate of 1 mL/min for 4 h. Samples from the system output stream were analyzed by HPLC and Folin Ciocalteu method. The solid fraction was characterized (chemical composition, XRD and FTIR) and subjected to enzymatic hydrolysis. The liquid fractions of pretreatment provided a defined profile of released glucose, xylose, phenolic components and acetic acid over time. After 40 min, most of fermentable sugars were released, forming a liquor with a sugar content above 10 g/L. Post-treated biomass showed a reduction of cellulose (26 % to 17 %) and hemicellulose (23 % to 18 %) and an increase in lignin content (32 % to 44 %). Despite this new chemical composition of the biomass, the pretreated material had lower crystallinity indexes and modifications in its chemical groups. This favored cellulosic conversion from 15 % to 55 %, producing 63.5 % more glucose than the untreated green coconut shell during enzymatic hydrolysis. Thus, the pressurized pre-treatment favored the fermentable sugar production from the green coconut shell, and there is also the possibility of utilizing the sugars present in the pre-treatment liquor

    Comparative salivary gland transcriptomics of sandfly vectors of visceral leishmaniasis

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    BACKGROUND: Immune responses to sandfly saliva have been shown to protect animals against Leishmania infection. Yet very little is known about the molecular characteristics of salivary proteins from different sandflies, particularly from vectors transmitting visceral leishmaniasis, the fatal form of the disease. Further knowledge of the repertoire of these salivary proteins will give us insights into the molecular evolution of these proteins and will help us select relevant antigens for the development of a vector based anti-Leishmania vaccine. RESULTS: Two salivary gland cDNA libraries from female sandflies Phlebotomus argentipes and P. perniciosus were constructed, sequenced and proteomic analysis of the salivary proteins was performed. The majority of the sequenced transcripts from the two cDNA libraries coded for secreted proteins. In this analysis we identified transcripts coding for protein families not previously described in sandflies. A comparative sandfly salivary transcriptome analysis was performed by using these two cDNA libraries and two other sandfly salivary gland cDNA libraries from P. ariasi and Lutzomyia longipalpis, also vectors of visceral leishmaniasis. Full-length secreted proteins from each sandfly library were compared using a stand-alone version of BLAST, creating formatted protein databases of each sandfly library. Related groups of proteins from each sandfly species were combined into defined families of proteins. With this comparison, we identified families of salivary proteins common among all of the sandflies studied, proteins to be genus specific and proteins that appear to be species specific. The common proteins included apyrase, yellow-related protein, antigen-5, PpSP15 and PpSP32-related protein, a 33-kDa protein, D7-related protein, a 39- and a 16.1- kDa protein and an endonuclease-like protein. Some of these families contained multiple members, including PPSP15-like, yellow proteins and D7-related proteins suggesting gene expansion in these proteins. CONCLUSION: This comprehensive analysis allows us the identification of genus- specific proteins, species-specific proteins and, more importantly, proteins common among these different sandflies. These results give us insights into the repertoire of salivary proteins that are potential candidates for a vector-based vaccine

    Nitrogen and sulfur mineralization in Brazilian soils under influence of liming and phosphorus

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    O presente estudo, desenvolvido em laboratório no período de outubro de 1995 a janeiro de 1996, objetivou avaliar a influência da calagem e fósforo (P) sobre a mineralização de nitrogênio (N) e enxofre (S) em sete solos, com ampla variabilidade nas características químicas e físicas. Os solos (200 g), numa etapa anterior à aplicação de P (KH2PO4 p.a.), foram pré-incubados por sete dias com CaCO3 p.a. A seguir, foram incubados novamente, por mais 70 dias. Os teores de N (NO3- + NH4+) e S (SO42-) mineralizados em condições aeróbias foram avaliados a cada catorze dias, e notou-se neles uma dinâmica diferenciada, com o N mineral apresentando maior variação do que o sulfato. As quantidades de N mineralizado não se mostraram dependentes da acidez do solo, porém notou-se uma aceleração na mineralização do N com a calagem do Glei Húmico e do Latossolo Vermelho-Amarelo coletado no Rio de Janeiro. Ao contrário, a mineralização de S no Glei Pouco Húmico e no Latossolo Vermelho-Amarelo coletado no Rio de Janeiro foi influenciada pela correção da acidez do solo, que promoveu maior disponibilidade de sulfato nesses solos. Os teores de N e S mineralizados não foram influenciados pelos níveis de P disponível. A maior prevalência de nitrato e sulfato em alguns dos solos calcariados implica maior cuidado no estabelecimento da época de aplicação de corretivo.This study was carried out under laboratory conditions, from October 1995 to January 1996, in order to evaluate the influence of liming and phosphorus (P) application on nitrogen (N) and sulfur (S) mineralization in seven Brazilian (0-20 cm) soils with a wide variability in chemical and physical properties. Soil samples, before fertilization with P (KH2PO4), were pre-incubated during seven days with CaCO3, and incubated again for another 70 days. The content of mineralized N (NH4+ and NO3-) and S (SO42-) were measured every other week, in aerobic conditions. Transformation of N and S showed different mineralization patterns from each other, with mineral N levels undergoing much greater variation than sulfate levels. Mineralized N amounts were not affected by soil acidity, although liming accelerated N mineralization in Humic Gley and Red-Yellow Latosol (colected in Rio de Janeiro) soils. Liming the soils to a pH around 6.0 resulted in increased net S mineralization in Low Humic Gley and Red-Yellow Latosol (colected in Rio de Janeiro) soils. Addition of superphosphate did not influence N and S mineralization processes. The greater prevalence of nitrate and sulphate in some of the limed soils suggests that the criterion used to choose time of lime application needs to be changed
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