Indie existence aesthetics: articulations around the mainstream conception

Indie emerged as sound and creative experimentations that sought to move away from the mainstream music. This conception, applied to a musical genre, can be understood as an aesthetic conception. Foucault points out that the search for an aesthetic that legitimizes our existence is an ethical subject's constitution practice. In turn, music fans interact to discuss, validating or rejecting content directed to them by the music industry and the artists they enjoy. The interactivity between fans about media products characterizes them as prosumers, i.e., consumers who act productively on what they consume. Thus, present research aims to analyze how prosumerist interactions of indie music fans define the genre through an aesthetic of existence. To this purpose, the research was conducted through netnography in one of the main virtual fan communities of the genre. The results indicate the exercise of two aesthetics: one presents the indie as an alternative to the mainstream, forged in the conceptions of freedom and resistance; another testifies to the indie as adherent to the mainstream, thanks to the capacity to expand access to the genre. Although they sound irreconcilable, both are based on the understanding that the indie is beautiful and that it needs to be preserved from its relationship with the mainstream conception

On the effect of aluminum on the microstructure and mechanical properties of CrN coatings deposited by HiPIMS

BNDES - BANCO NACIONAL DE DESENVOLVIMENTO ECONÔMICO E SOCIALCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOHard coatings are a suitable solution for increasing the lifetime of tools and components employed in different industrial applications. Coatings of transition metal nitrides have great use for tribological applications due to due to their unique mechanical properties. Although widely employed, current deposition methods such as cathodic arc evaporation produce coatings with many defects, which in turn reduce the resistance to wear, especially under severe conditions. High Power Impulse Magnetron Sputtering is a novel physical vapor deposition technique that produces homogeneous coatings. In this study, CrN and CrAlN monolayer coatings were deposited on AISI 304 stainless steel substrates using HiPIMS. X-Ray Diffraction, Scanning Electron Microscopy, Atomic Force Microscopy were used to evaluate the microstructure, phase composition, morphology and chemical composition of the coating. Results showed that HiPIMS is a promising technique to deposit CrN and CrAlN homogeneous coatings with high hardness and good adhesion to the substrate.21316BNDES - BANCO NACIONAL DE DESENVOLVIMENTO ECONÔMICO E SOCIALCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOBNDES - BANCO NACIONAL DE DESENVOLVIMENTO ECONÔMICO E SOCIALCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO640/2012sem informaçãosem informaçã

Tailoring the Hybrid Magnetron Sputtering Process (HiPIMS and dcMS) to Manufacture Ceramic Multilayers: Powering Conditions, Target Materials, and Base Layers

The mechanical and wear behavior of CrN/CrAlN multilayers were improved by tailoring the experimental conditions of a hybrid magnetron sputtering process based on a high-power impulse (HiPIMS) and two direct current magnetron sputtering (dcMS) power supplies. To this end, the influence of the base layer and of the combination of Cr and CrAl targets, which were switched to the dcMS and HiPIMS power supplies in different configurations, were investigated with respect to the growth of ceramic CrN/CrAlN multilayers onto commercial gas-nitrided diesel piston rings. The microstructure, grain morphology, and mechanical properties were evaluated by field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), and instrumented nanoindentation. Bench wear tests simulating the operation of a combustion engine were conducted against a gray cast iron cylinder liner under reciprocating conditions using 0W20 oil as a lubricating agent enriched with Al$_{2}$O$_{3}$ particles. The results revealed a significant increase in hardness, resistance to plastic strain, and wear resistance when two CrAl targets were switched to a HiPIMS and a dcMS power supply, and a Cr target was powered by another dcMS power supply. The compressive coating stresses were slightly reduced due to the soft Cr base layer that enabled stress relief within the multilayer. The proposed concept of hybrid magnetron sputtering outperformed the commercial PVD coatings of CrN for diesel piston rings manufactured by cathodic arc evaporation

ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ

SUSTENTABILIDADE: MATERIAIS PLÁSTICOS, O GREAT PACIFIC GARBAGE PATCH E PROPOSTAS SUSTENTÁVEIS NO CONTEXTO DA GLOBALIZAÇÃO CONTEMPORÂNEA

O presente trabalho analisa propostas políticas de sustentabilidade em torno do problema do plástico enquanto poluidor do meio ambiente e causador de problemas fisiológicos aos seres humanos. Utiliza a metodologia exploratória, dedutiva e qualitativa, com exame em legislações e bibliografias nacionais e internacionais de acordo à temática analisada. Primeiramente discorre sobre as legislações brasileiras e o problema midiático dos canudos de plástico. Em seguida, desenvolve sobre a questão do plástico e do Great Pacific Garbage Patch. Posteriormente, analisa o plástico e as proposições internacionais, especialmente as europeias, em torno de sua contínua utilização e produção industrial. Por fim, conclui pela impossibilidade de qualquer programa efetivo para a exclusão do plástico e de quaisquer outros resíduos de amplo consumo sem uma real imposição de parâmetros não estatais de instituições ou movimentos que sejam alheios aos interesses corporativos dessas empresas diretamente ou indiretamente vinculadas à produção do plástico

Desiring the city: the urban imaginary in rural collective settlements in a Brazilian submontane Atlantic forest reserve

This article discusses data obtained in a study on populations who live near an important Brazilian submontane Atlantic forest, a geographical zone of north-eastern states located between the beach zone and the savanna-scrub zone. The populations in question live in a so-called Ecological Station from Murici (Esec-Murici), in the Murici Forest Complex (CFM), in the forest zone of Alagoas, distributed between two Incra rural collective settlements and on farms. Cultural forms used by such populations have been discussed by using social indexes taken from this survey and associating them with economical and environmental sustainability notions in their interfaces with these groups' social development and with regards to the actions of other agents in the CFM, suggesting that the maintenance of an urban imaginary which produces new subjectivities can be easily linked with environmental conservation policies