Ageing by the look of montage : or when the montage tells of ageing

Este ensaio se apresenta como um exercício do ver sobre o envelhecer na cidade contemporânea, apostando na montagem, conforme elaborada por Aby Warburg, como um procedimento de leitura da realidade urbana. A montagem, aqui neste texto, é produzida por fragmentos de obras literárias e registros fotográficos aleatórios sobre a cidade. Dessa forma nos perguntamos: pode a montagem dar a ver sobre o envelhecer na cidade? De que modo ela o faz? E ainda, como, dessa forma, isso contribuiria para um pensamento sobre a cidade contemporânea? Espera-se, através do procedimento, produzir uma reflexão sobre o envelhecer como um conjunto de fragmentos que permitam pautar novas questões. Essa reflexão toma como principais teóricos Walter Benjamin, Georges Didi-Huberman e Roland Barthes. Busca-se, através de um material textual e imagético, uma escrita que é um trabalho da imaginação, e, por isso, cheia de outros sentidos, estéticos e políticos, sobretudo.This essay proposes an exercise about seeing with the aging in the contemporary city, betting on montage, as elaborated by Aby Warburg, as a procedure for reading urban reality. The montage, here in this text, is produced by fragments from literary works and random photographic records about the city. So, in this way, we ask: can the montage show about aging in the city? How does it do? And yet, how, by this way, would the montage contribute to a thought about contemporary city? It is hoped, through the procedure, to produce a reflection on aging in the city as a set of fragments that allow new questions. This reflection takes as main theorists Walter Benjamin, Georges DidiHuberman and Roland Barthes. Through this textual and imagery material, we seek a text that is also a work of the imagination, and, therefore, full of other senses, aesthetic and political, above all

Extraction of corn colorants (Zea mays L.)

Natural colorants were craftly made and widely used before the discovery of the synthetic colorants. The study and the use of natural colorants have become important again in the last few years due to questions raised by the international health organizations and consumers related to the indiscriminate use of synthetic colorants which were linked to the development of degenerative illnesses and environmental impact. The colorant extracted from purple corn (Zea Mays L.) was used by the Inca civilization to prepare food and to dye textile fibers. In this work, pigments from the anthocyanin group were extracted from purple corn and red corn (Zea Mays L.) varieties and were later characterized. Three extraction methods were used: immersion, lixiviation with some changes, and supercritical extraction (ESC). The best method of extraction was lixiviation, which reached 88% (m/m) of performance as a function of the mass of colorant extracted and of the raw materials. Also using the modified lixiviation it was possible to concentrate the acylate compounds in 3% as well as to recover 85% of solvent used. A pH indicator was obtained by fixing the anthocyanins on a filter paper based on anthocyanins stabilization. This technique can be utilized in laboratory chemistry lessons.Os corantes naturais foram amplamente utilizados de forma artesanal até antes do surgimento dos corantes sintéticos. O estudo e uso dos corantes naturais voltaram a ter importância nestes últimos anos devido aos questionamentos dos organismos internacionais da saúde e dos consumidores pelo uso indiscriminado dos corantes sintéticos, ligados ao desenvolvimento de doenças degenerativas e ao impacto ambiental. O corante extraído do milho roxo (Zea mays L.) tem sido utilizado ao longo da história pela civilização Inca na preparação de alimentos e no tingimento de fibras têxteis. Neste trabalho, os pigmentos do grupo das antocianinas foram extraídos das variedades de milho roxo e do milho vermelho (Z. mays L.) e depois foram caracterizados. Três métodos de extração foram utilizados: imersão, lixiviação com algumas modificações e extração supercrítica (ESC). O melhor método para extração foi o da lixiviação que alcançou 88% (m/m) de rendimento, em função da massa do corante extraído e da matéria-prima. Também utilizando a lixiviação modificada, foi possível concentrar em 3% os compostos acilados, assim como recuperar 85% dos solventes utilizados. Um indicador de pH foi obtido pela fixação das antocianinas num papel de filtro, com base na estabilidade das antocianinas, ferramenta que pode ser utilizada em laboratórios de ensino de química.6269Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES

Bacurau : an aesthetics and politics experience about the minor

Este ensaio discute a realidade das cidades pequenas tal qual representada no filme Bacurau. A questão posta como problema é como essas imagens em movimento nos convidam a refletir a partir de uma perspectiva estética e política. Essa obra nos instiga a pensar o urbano a partir de uma outra perspectiva — a cidade pequena ou, ainda, o lugar menor. Em contextos contra-hegemônicos, se justificam reflexões que invertam a lógica hegemônica neoliberal. O objetivo é pensar pautas que emergem no filme em questão que expressam realidades das cidades pequenas. A aproximação metodológica reside no enfrentamento teórico a partir das noções de estética e política em Jacques Rancière e na noção de menor em Gilles Deleuze e Félix Guattari. Esperamos alçar questões que evidenciam a realidade desse outro urbano. Acreditamos que é na esfera estética e política que esse outro urbano possa se manifestar como uma questão relevante de pesquisa.This essay discusses the reality of small towns as represented on the film Bacurau. The problem is how these moving images invite us to reflect from an aesthetics and politics perspective. This work instigates us to think of the urban from another perspective — the small city or, still, the place of the minor. In counter-hegemonic contexts, reflections are justified that invert a neoliberal hegemonic logic. The objective is to think about guidelines that emerge in the film in question that express realities of small cities. The methodological approach resides in the theoretical confrontation based on the notions of aesthetics and politics in Jacques Rancière and in the notion of a minor in Gilles Deleuze and Félix Guattari. We hope to raise issues that highlight the reality of this other urban. We believe that it is in the aesthetics and politics sphere that this other urban can manifest itself as a relevant research question

Crystallinity index determination on cellulosic fibers

The purpose of this work was to develop analytical techniques for structural characterization of cellulosic fibers. To establish a relationship between the two methods that determine crystallinity index, three varieties of cotton (IAC 17, IAC 19, and IAC 20) and fibers of viscose, rami and rami chemical treated were used. Two empirical methods, x-ray diffraction and infrared spectroscopy, were used to evaluate the crystallinity index. Differentiation of IAC cotton varieties was possible with the crystallinity index obtained by infrared spectroscopy; but, not with the x-ray diffraction method. The crystallinity index obtained by these two methods had no correlation with physical properties of cotton fibers. When cellulose fibers with different treatment were assayed, there was a high correlation (r = 0.95) between the two methodologies used for the determination of crystallinity index.No presente estudo, foi avaliada a introdução de métodos de análises de micro-estrutura de fibras celulósicas. O algodão utilizado, proveniente das variedades IAC 17, IAC 19 e IAC 20, foi colhido em dez localidades do ensaio regional de variedades do Estado de São Paulo, no ano agrícola de 1985/86. Amostras de fibras de viscose, rami e rami tratado quimicamente com ácido clorídrico, também foram usadas, a fim de estabelecer uma relação entre os dois sistemas de determinação dos índices de cristalinidade. Utilizaram-se os métodos empíricos de difratometria de raios X e espectroscopia de infravermelho para as determinações dos índices de cristalinidade: o obtido por espectroscopia de infravermelho permitiu a diferenciação de variedades de algodoeiro IAC, enquanto o proposto por difratometria de raios X não possibilitou essa diferença. As propriedades físicas das fibras de variedades de algodoeiro IAC não se correlacionaram com os índices de cristalinidade obtidos nos dois processos. Os métodos usados para a determinação de tais índices foram altamente correlacionados (r = 0,95), empregando-se amostras de celulose com tratamento diferenciado.12112

Between images, abandonments : dream and creation of possible urban worlds

Este ensaio reflete sobre o abandono, partindo de registros fotográficos de uma situação de vulnerabilidade. O enfoque dado é a relação que se estabelece entre a precariedade confrontada com o direito à vida urbana. Como método de abordagem, utiliza-se a montagem, na perspectiva de Georges Didi-Huberman. O objetivo deste artigo é desdobrar, entre imagens, o sentido de abandono. Por um lado, como registro e denúncia por aquele que está fora do problema, por outro lado, como sonho e possibilidade real de uma nova perspectiva da inclusão, por aquele que está dentro. Trata-se de: (i) focar na precariedade da vida, a partir de uma representação decalcada da realidade pelo arquiteto; (ii) posicionar o direito à cidade como vontade de criação e sonho de um existir pelo morador em situação de rua, através de experiências fotográficas do projeto de extensão A cara da rua. Espera-se posicionar o problema do abandono entre uma esfera estética e política como abertura de outros sentidos urbanos possíveisThis essay reflects on abandonment, based on photographic records of a vulnerable situation. The focus is on the relationship between precariousness and the right to urban life. As a method of approach, we use montage, from Georges Didi-Huberman’s perspective. The objective of this article is to unfold, among images, the sense of abandonment. On one hand, as a register and denunciation by the one who is outside the problem, on the other hand, as a dream and a real possibility of a new perspective of inclusion, by the one who is inside. It is about: (i) focusing on the precariousness of life, from a representation from reality by the architect; (ii) positioning the right to the city as a will to create and a dream of existence by the homeless, through photographic experiences in the project The face of street. It is hoped to position the problem of abandonment between an aesthetic and political sphere as an opening to other possible urban meanings

Potential implications to wheat establishment due to negative effects of Eragrostis plana in rhizospheric soil

Exotic plants, such as Eragrostis plana in southern Brazil, may cause significant problems in agriculture. This study aimed to elucidate the influence of E. plana rhizosphere soil on wheat germination and initial development. Bioassays with soil sampled from an infested agroecosystem were carried out using wheat as the target species. A factorial design was used, crossing soil from the horizontal and vertical distances from the E. plana tiller base and considering seasons as a blocking factor. The interaction between season and vertical and horizontal soil positions influenced normal wheat seed germination, with the lowest values (69%) observed in the winter bottom and intermediate soil positions. The highest abnormal seedling percentage (17.6%) was recorded in the summer middle vertical soil position. Dormant wheat seeds were higher (7%) in the spring bottom and distal soil positions. The season was the most important factor for germination, but hypocotyl, radicle, and total wheat seedling length also varied according to soil position. Shorter hypocotyls and seedlings were registered in the summer soil surface, while shorter radicles were observed in the proximal horizontal soil position in the same season. This variable response of wheat germination and seedling development to the infested soil demonstrated E. plana seasonality. The influence also varied according to the distance from the plant tiller base. These findings may be used to improve E. plana management in infested fields and to understand the mechanism of action of its allelochemicals in future research

Consenso nacional de ressuscitação cardiorespiratória

Resumo não disponíve

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

2019 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations

The International Liaison Committee on Resuscitation has initiated a continuous review of new, peer-reviewed, published cardiopulmonary resuscitation science. This is the third annual summary of the International Liaison Committee on Resuscitation International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. It addresses the most recent published resuscitation evidence reviewed by International Liaison Committee on Resuscitation Task Force science experts. This summary addresses the role of cardiac arrest centers and dispatcher-assisted cardiopulmonary resuscitation, the role of extracorporeal cardiopulmonary resuscitation in adults and children, vasopressors in adults, advanced airway interventions in adults and children, targeted temperature management in children after cardiac arrest, initial oxygen concentration during resuscitation of newborns, and interventions for presyncope by first aid providers. Members from 6 International Liaison Committee on Resuscitation task forces have assessed, discussed, and debated the certainty of the evidence on the basis of the Grading of Recommendations, Assessment, Development, and Evaluation criteria, and their statements include consensus treatment recommendations. Insights into the deliberations of the task forces are provided in the Justification and Evidence to Decision Framework Highlights sections. The task forces also listed priority knowledge gaps for further research

MÉtodo E Processo De ObtenÇço De Fibras De Nanocelulose, Fibras De Nanocelulose E Uso Das Mesmas

MÉTODO E PROCESSO DE OBTENÇÃO DE FIBRAS DE NANOCELULOSE, FIBRAS DE NANOCELULOSE E USO DAS MESMAS. A presente invenção refere-se a um método e um processo de obtenção de fibras de nanocelulose, a partir de uma matéria-prima rica em celulose em que o aperfeiçoamento consiste na seleção de uma matéria-prima rica em celulose sem desidratação prévia preferencialmente selecionada dentre fibras de algodão na forma in natura ou congelada e encapsulada (capulho). São objetos adicionais da presente invenção uma fibra de nanocelulose e uso da dita fibra em artigos têxteis, papel, cosméticos, produtos que requerem maior resistência mecânica e térmica, em papel de alta resistência, em embalagens, estruturas hiperhidrófilas, em filtros especiais para captura de vírus e bactérias, em suporte para crescimento de células, mímica de estruturas biológicas tais como estruturas ósseas, vasculares, cartilagens e ligamentos e, em biomateriais.BRPI1006335 (A2)D01C1/02BR2010PI06335D01C1/0