“Custa nada sonhar” em tempos de hiperinflação: um retrato bem humorado da trágica realidade econômica brasileira no início da década de 1990

This article seeks to analyze the Brazilian social, political, economic and cultural context in the early 1990s. The work is based on the critical analysis of the song “Custa Nada Sonhar” (Itamar Assumpção/ Paulo Leminski) that allows for the opening of the development of the proposed theme. Initially, it presents, through brief comments, the personal and professional trajectory of the composers. Then, it goes on to analyze the song divided into text and music. Thus, through the elements present in the work, address the political and economic moment of the beginning of this decade and the impact caused by the economic crisis in the phonographic industry sector. As well as the development of independent music production as an alternative to the industry and market logic.Este artigo busca analisar o contexto social, político, econômico e cultural brasileiro no início dos anos 1990. O trabalho tem como base a análise crítica da canção “Custa Nada Sonhar” (Itamar Assumpção/ Paulo Leminski) que possibilita a abertura para o desenvolvimento do tema proposto. Inicialmente, apresenta através de breves comentários a trajetória pessoal e profissional dos compositores. Em seguida, parte para a análise da canção dividida em texto e música. Para assim, através dos elementos presentes na obra, tratar o momento político e econômico do início desta década e o impacto ocasionado pela crise econômica no setor da indústria fonográfica. Assim como, o desenvolvimento da produção musical independente como via alternativa à lógica da indústria e do mercado

Avaliação de cenário alternativo para sistema de condensação de um complexo multiempresarial

Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Mecânica, 2019.Este trabalho apresenta um estudo comparativo e propositivo do impacto energético de dois cenários de operação de torres de resfriamento no sistema de condensação da central de água gelada de um complexo multiempresarial situado em Brasília – DF, que inclui 4 chillers com condensação a água. O estudo de caso se baseou na análise de dois cenários: uma ou 5 torres operando simultaneamente, apresentando simulações termoenergéticas computacionais e, posteriormente, a análise da melhor alternativa e os seus impactos energéticos e financeiros para o complexo.This work presents a comparative study of the energy impact of two cooling tower operation scenarios in a condensation system of the chilled water plant of a multi-company complex located in Brasília, DF, which is constituted by four water condensed chillers. The case study is based on a double scenario analysis: one or five towers operating simultaneously, presenting computational thermoenergetic simulations and, later, an analysis of the best alternative and its energetic and financial effects

Phosphorous recovery from treated wastewater by salt activated biochar

Phosphorus (P), an essential element for life and an irreplaceable component of modern agriculture, suffers losses at every stage of its biogeochemical cycle, raising concerns about future supplies as well as water and soil pollution [1]. Furthermore, P is a non-renewable resource so much so that it is estimated that its reserves will be depleted within 50-400 years [2]. Europe, in order to meet its need for P, is entirely dependent on imports from other countries. The unbalanced global distribution of P is increasingly becoming a geopolitical problem for Europe that can only be overcome by finding new and sustainable sources of supply. By virtue of the above, a more rational use of P fertilisers and the recovery of P from agro-food products, urban and industrial wastewater are desirable [3]. An efficient and economical method to recover P from wastewater is by its sorption onto a solid phase that, in turn, can applied to soil as slow-release fertiliser. Biochar is among the most widely used solid materials for nutrient recovery. It is a material obtained by pyrolysis of biomass, usually wastes, at high temperatures (300-800 °C) and in absence of oxygen [4]. Biochar consists mainly of aromatic-type carbon and is characterised by a large specific surface area (200-1000 m2 g-1), low density and high porosity [5]. Studies conducted to investigate the potential of biochar as adsorbent of P from aqueous solutions are few and, often, conflicting. This is probably due to the performance and properties of biochar being highly influenced by many factors such as temperature, heating rate and pyrolysis duration, feedstock used and particle size [6]. Studies have shown that biochar has mainly a negative surface charge, which causes non-attraction or only very weak interactions with negative ions such as phosphate. For this reason, a modification of the surface and structure of the biochar is required if it is thought to be used for phosphate sorption. Zheng et al., (2019) [10] found that biochar modified with Mg and Al contains more functional groups than natural or treated biochar with only Mg or Al, moreover, it shows a larger surface area [10]. Zhong et al., 2019 [9], for example, impregnated coconut shell biochar with Fe. The results showed that Fe-biochar adsorbed 36 mg of P g-1, which was 2.4 times higher than the untreated biochar. Although the results are encouraging, it is important to emphasise that the search for biochar with a higher phosphate adsorption capacity is in its early stages, so further studies are needed. The purpose of this study was to assess the ability of two biochar, pre-treated or not with HCl and, subsequently, treated with 0.5 M and 2 M of one of the following salts, CaCl2, MgCl2, AlCl3, FeCl3, to adsorb P from a mono-component solution

Levantamento com scaner à laser na modelagem da igrejinha: um estudo do nível de desenvolvimento - LOD: Study of the level of development in the modeling of the igrejinha: based on laser scanner

O presente artigo é uma pesquisa sobre o uso de HBIM para o levantamento e documentação do Patrimônio Cultural, em que o objeto de estudo foi a Igreja Nossa Senhora de Fátima, localizada em Brasília, Distrito Federal. O levantamento arquitetônico foi feito com Scanner à Laser. A partir da nuvem de pontos gerada, foi feita a modelagem 3D utilizando o software Revit. O objetivo deste trabalho é analisar o Nível de Desenvolvimento (LOD) empregado na modelagem, com base no padrão desenvolvido pelo American Institute of Architects (AIA).  Foi possível notar que a ausência de documentação pode influenciar na modelagem 3D, por não ter informações suficientes para gerar um modelo HBIM. Portanto, reunir informações no modelo pode contribuir para a preservação patrimonial de forma mais efetiva ao longo do seu ciclo de vida. O uso de ferramentas como o LOD pode tornar o processo de documentação mais acurado e transparente, melhorando a qualidade de comunicação entre os usuários do modelo e pesquisadores

New genus and species of Gymnophthalmidae.

24 p. : ill., map ; 26 cm. "May 9, 2011."Marinussaurus curupira, a new genus and species of Gymnophthalmidae lizard is described from Iranduba, state of Amazonas, Brazil. The genus is characterized by an elongate body; short and stout pentadactyl limbs; all digits clawed; single frontonasal; two prefrontals; absence of frontoparietals; interparietal and parietals forming a straight posterior margin, with interparietal shorter than parietals; distinctive ear opening and eyelid; few temporals; three pairs of chin shields; nasal divided; a distinct collar; smooth, mainly hexagonal, dorsal scales; smooth quadrangular ventral scales; two precloacal and three femoral pores on each side in males; pores between three or four scales. Parsimony (PAR) and partitioned Bayesian (BA) phylogenetic analyses with morphological and molecular data recovered the new genus as a member of the Ecpleopodini radiation of the Cercosaurinae. A close relationship of the new genus with Arthrosaura is postulated

Genetic comparison of sickle cell anaemia cohorts from Brazil and the United States reveals high levels of divergence

Genetic analysis of admixed populations raises special concerns with regard to study design and data processing, particularly to avoid population stratification biases. The point mutation responsible for sickle cell anaemia codes for a variant hemoglobin, sickle hemoglobin or HbS, whose presence drives the pathophysiology of disease. Here we propose to explore ancestry and population structure in a genome-wide study with particular emphasis on chromosome 11 in two SCA admixed cohorts obtained from urban populations of Brazil (Pernambuco and Sao Paulo) and the United States (Pennsylvania). Ancestry inference showed different proportions of European, African and American backgrounds in the composition of our samples. Brazilians were more admixed, had a lower African background (43% vs. 78% on the genomic level and 44% vs. 76% on chromosome 11) and presented a signature of positive selection and Iberian introgression in the HbS region, driving a high differentiation of this locus between the two cohorts. The genetic structures of the SCA cohorts from Brazil and US differ considerably on the genome-wide, chromosome 11 and HbS mutation locus levels9CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP8367/2011-1; 150398/2013-1; 304455/2012-1; 310938/2014-7; 305218/2017-48367/2011-1; 150398/2013-1; 304455/2012-1; 310938/2014-7; 305218/2017-42008/57441-0; 2014/00984-3; 2012/06438-5; 2015/13152-9; 2008/10596-

Models for compressive strength estimation through non-destructive testing of highly self-compacting concrete containing recycled concrete aggregate and slag-based binder

Indirect estimation of compressive strength through non-destructive testing is key to monitoring the strength of structural concretes used in construction and rehabilitation works. However, no models are available to perform this estimation in highly Self-Compacting Concrete (SCC) with Recycled Concrete Aggregate (RCA). To fill this gap, two indirect measures were tested in this paper, the hammer rebound index and Ultrasonic Pulse Velocity (UPV), to predict the compressive strength of highly SCC. To do so, 24 SCC mixes were developed with different aggregate powders, binders, such as Ground Granulated Blast Furnace Slag (GGBFS), and contents of fine RCA. Compressive strength, and both indirect measures of all mixtures were determined at 1, 7, 28, and 90 days. The development of specific models for highly SCC responded to the inappropriateness of conventional models that are not adapted to its high fines content. Modelling as a function of either UPV or the hammer rebound index yielded accurate predictions, although the UPV model proved more sensitive to compositional changes and presented higher uncertainty. The best predictions were modelled by combining both indirect measures. The models provided safe and accurate indirect estimations of the compressive strength of high flowability SCC in real structures.Spanish Ministry MCIU, AEI and ERDF [grant number FPU17/03374]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231, BU119P17]; Youth Employment Initiative (JCyL) and ESF [grant number UBU05B_1274]; and, finally, the University of Burgos [grant number SUCONS, Y135.GI]