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Experiências de fãs de K-pop em shows no Brasil
(Universidade Federal de São Carlos, 2020-06-10) Anjos, Mayumi Nagasawa dos; Ferragi, Cesar Alves; https://lattes.cnpq.br/8059661338196579; https://lattes.cnpq.br/7945273584749808
This paper will present a synthesis of Korean pop culture, known as Hallyu and one of its key elements, K-pop. The musical style is gaining popularity among young people from all over the world and, especially, in Brazil. With the increase of fans passionate about the contagious music and vibrant colors of the well choreographed clips, the demand for live performances grows in Brazil. But when trying to produce K-pop shows in the country, the gap between South Korea and Brazil is perceived, be it a geographical, cultural and economic distance. However we see achievements of these shows in Brazil. And in these, they present some difficulties for the fans. In reports by the author and K-pop fans, there seems to be a gap between the fan experience outside the venue and inside. In this way, some fans organize themselves in the so-called fanbases, to mobilize themselves in favor of a greater good, bringing convenience, engagement and creating bonds of friendship between the community that lives so far from their beloved idols.
A aplicação foliar de Mo e Co atenua o desbalanço de N em maracujazeiro?
(Universidade Federal de São Carlos, 2020-06-10) Nuncio-Junior, Rodrigo Antonio; ; Baron, Daniel; https://lattes.cnpq.br/2054014705484176; https://lattes.cnpq.br/5958497776845479
Knowledge about the nutritional balance at initial phenological stage is mandatory to circumvent limitations on the nutritional availabilities required by the plant species. However, little is elucidated to passion fruit [Passiflora edulis Sims. f. flavicarpa Degener] about nitrate (NO3-) and ammonium (NH4+) deprivation stress to initial growth phenological stages. Our hypothesis tested the benefits of foliar application (spray) of molybdenum (Mo) and cobalt (Co) under different availability (N %) from a single source of nitrogen (NO3-) in the contents of photosynthetic pigments and plant growth during the initial phenological stage of development. The essential mineral elements were supplied with the Hoagland and Arnon nº01 nutrient solution, which is deprived of NH4+. The treatments employed were low, moderate and high supplies of mineral elements (25%, 50% and 100% N) combined with the absence / presence of Co and Mo spray. The experiment was conducted in a factorial scheme with a completely randomized design and the data of growth and plant production (dry matter content and photosynthetic pigments) were analyzed by ANOVA and ANCOVA, respectively. Plant growth measures in response to treatments were studied using the ‘Scott-Knott’ procedure, and significant effects and interactions were explored by average post hoc comparisons (Tukey test). From the results, we observed that the spray of Co and Mo reduced the discrepancies between the plant growth in different availability of N. In addition, we verified that the content of photosynthetic pigments was higher with low supply of nutrients (25% N) without Co and Mo spray, which enables us to reject our null hypothesis and accept the alternative hypothesis. Thus, we conclude that the combined foliar application of Mo and Co in different availability of N attenuated plant stress due to NO3- deficiency and NH4+ deprivation during the early stage of vegetative development of young plants of P. edulis in nursery.
Efeitos da temperatura e da contaminação de rejeitos da mineração no crescimento e na fisiologia de Ricciocarpos natans (L.) Corda
(Universidade Federal de São Carlos, 2020-06-10) Gimenes, Luana Lorca Sartoris; Freschi, Gian Paulo Giovanni; https://lattes.cnpq.br/7759622872412835; Santino, Marcela Bianchessi da Cunha; https://lattes.cnpq.br/2356641063223397; https://lattes.cnpq.br/1830366952507258
In recent years, the contamination of Brazilian water resources by metals contained in mining waste has become frequent and, in addition, another environmental factor that must also be considered, concomitantly, is the increase in the global temperature of the planet caused by global warming. In this context, this work aimed to evaluate the toxicity of three metals (Al, Mn and Zn) in bioassays containing different concentrations of individual metals and in combinations in the growth in biomass and width and in the physiological responses of Ricciocarpos natans under two temperatures, in addition to evaluate the growth and physiological changes of individuals exposed to water contaminated by mining waste, and to evaluate the percentage of removal efficiency of metals from the test solution. Samples of water contaminated by mining waste from the dam burst in Mariana (MG) in 2015 were collected and the metals determined. The treatments included healthy individuals of R. natans (n = 10, ± 0.5 cm wide) exposed for 30 days (5 repetitions), 12/12 photoperiod, to the metal concentrations found in the tailings (Al = 1.5 mg L-1; Mn and Zn = 0.7 mg L-1) and in two higher concentrations (Al = 2.5 and 5.0 mg L-1; Mn and Zn = 1.5 and 3.0 mg L- 1) at temperatures of 25 ºC and 27 ºC. Twice a week, the plants of all treatments had their fresh masses determined gravimetrically and the width measured. The fresh masses accumulated from the macrophytes during the sampling period were adjusted to the logistic model. Physiological analyzes of photosynthetic pigments (chlorophyll-a, chlorophyll-b, carotenoids), antioxidants (anthocyanin and flavonoid) and oxidative stress (lipid peroxidation and electrolyte leakage) were performed once a week. The growth and physiological responses of the macrophyte R. natans were affected by exposure to the concentrations of the metals Al, Mn and Zn. The growth coefficients and the doubling time changed with the addition of the metals. The growth kinetics for the mixture of metals indicated that the higher the combined concentrations, the greater the damage to the growth and physiology of the macrophyte, as necrosis in plant tissues occurred faster. In water contaminated by the tailings, the individuals of R. natans also showed impaired growth since the beginning of the experiments. The increase in temperature by 2 ° C (27 ° C) together with exposure to metals negatively influenced the growth of R. natans, since for most of the bioassays it was not possible to observe an increase in biomass or even width. In general, metals inhibit plant growth by around 50% of biomass production. The present study contributes to the understanding of the impacts that can occur by metals contained in mining tailings and the increase in temperature in aquatic ecosystems in the growth and physiology of aquatic macrophytes.