Use of recycled concrete fines in cement and as aggregate

The research project focused on investigating and optimizing the processing and use of recycled crushed sand 0/4 from concrete demolition waste, as an alternative raw material in the cement and concrete industry. Crushed sand is produced during the processing of concrete demolition waste. The goal was to identify the optimum way of using the processed material along the entire process chain so that greenhouse gas emissions, waste volumes are reduced, and natural resources are conserved. Different samples of laboratory and real crushed concrete fines were collected and examined in relation to various possible applications in accordance with the applicable standards. Results highlight, that crushed concrete fines can be used in various applications in the concrete value-chain. However, for an optimal usage, additional processing is needed

Variabilidade de clorofila a nas águas do Complexo Estuarino de Paranaguá e plataforma adjacente : uma avaliação dos algoritmos e correções atmosféricas do sensor MODIS.

Orientador : Prof. Dr. Maurício Almeida NoernbergMonografia (graduação) - Universidade Federal do Paraná, Setor de Ciências da Terra, Centro de Estudos do Mar, Curso de OceanografiaResumo: O sensoriamento remoto da cor do mar sobre regiões estuarinas e costeiras por muitas vezes gera informações imprecisas, devido ao aumento de constituintes opticamente ativos na água, e do enriquecimento de aerossóis atmosféricos de origem continental. Assim, para a estimativa da concentração de clorofila, foi necessária a verificação e qualificação dos melhores algoritmos e das correções atmosféricas do sensor MODIS, comparando-os com dados adquiridos in situ. Após esta qualificação, o melhor algoritmo e modelo de correção foi aplicado para um acompanhamento anual da concentração de clorofila do Complexo Estuarino de Paranaguá (CEP) e plataforma adjacente. Foi utilizado o algoritmo global do MODIS - OC3M, que apresenta três variações em sua fórmula, as quais são denominadas de Chlor_a, Chlor_oc2 e Chlor_oc3, e também o algoritmo semi-analítico GSM. Os modelos de correção atmosféricas correspondem ao Padrão do sensor MODIS e a correção de MUMM. A comparação entre os dados ocorreu através da correlação de Pearson, análise de dispersão e pelo erro médio quadrático (EMQ). Para a primeira comparação, os dados apresentaram correlação negativa não significativa, devido ao intervalo de aquisição entre o levantamento de campo e a passagem do sensor, o qual implicou em medidas sobre diferentes períodos de maré. Para as duas últimas coletas, os valores de clorofila foram correlatos para ambas as correções atmosféricas. Através do EMQ foi possível determinar que o algoritmo que respondeu de maneira mais fiel aos dados de campo foi o Chlor_oc2, quando processado com o modelo de correção atmosférica de MUMM, sempre com valores mais baixos do que os demais produtos. Este algoritmo, juntamente com o modelo de MUMM, foi aplicado para o acompanhamento da variabilidade anual de clorofila. Foram utilizados dados de 28 imagens, que representaram o período de junho de 2009 a julho de 2010, e então foi estimada a concentração média de clorofila no setor interno e externo do CEP. Esses dados foram relacionados às taxas de precipitação diária, para o mesmo período, obtidos a partir da estação meteorológica localizada em Pontal do Sul. A concentração de clorofila para o setor interno do CEP apresentou correlação com os de precipitação. A variabilidade anual de clorofila respondeu de maneira semelhante a padrões determinados por valores pretéritos adquiridos in situ. Desta forma, o algoritmo Chlor_oc2, processado com a correção atmosférica de MUMM se mostrou eficaz e hábil para estimar a concentração de clorofila na região do CEP. Palavra-chave: Correção atmosférica Padrão. Modelo de MUMM. Algoritmo global OC3M. Algoritmo semi-analítico GSM

OEIS complex associated with chromosome 1p36 deletion: A case report and review

OEIS complex (Omphalocele, Exstrophy of the cloaca, Imperforate anus, and Spine abnormalities) is a rare defect with estimated incidence of 1 in 200,000 live births. Most cases are sporadic, with no obvious cause. However, it has been rarely reported in patients with family members having similar malformations or with chromosomal anomalies. In addition, OEIS complex has been observed in association with environmental exposures, twinning, and in vitro fertilization. Monosomy 1p36 is the most common terminal deletion syndrome, with a prevalence of 1 in 5,000 newborns. It is characterized by specific facial features, developmental delay, and heart, skeletal, genitourinary, and neurological defects. We describe an infant with OEIS complex and 1p36 deletion who had features of both disorders, including omphalocele, cloacal exstrophy, imperforate anus, sacral multiple segmentation, renal malposition and malrotation, genital anomalies, diastasis of the symphysis pubis, microbrachycephaly, large anterior fontanel, cardiac septal defects, rib fusion, a limb deformity, developmental delay, and typical facial features. Chromosomal microarray analysis detected a 2.4 Mb terminal deletion of chromosome 1p. This is the first reported case with OEIS complex in association with a chromosome 1p36 deletion. © 2010 Wiley-Liss, Inc.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/64897/1/33226_ftp.pd

Tras los pasos de la Sílfide. Imaginarios españoles del ballet romántico a la danza moderna

La publicación que tiene la persona lectora entre sus manos realiza un recorrido de cien años de historia de la danza, un camino que toma como punto de partida la cultura visual del Romanticismo y que se ramifica fuera del ámbito geográfico de nuestro país, analizando los rasgos que definen y construyen la danza española y cómo estos se difundieron en los bailes en el extranjero.Las investigaciones contenidas en este libro son resultado del proyecto Tras los pasos de la Sílfide. Una historia de la danza en España, 1836-1936 (PGC2018-093710-A-I00)Peer reviewe

Disorders of intestinal rotation and fixation (“malrotation”)

Malrotation with volvulus is one of the true surgical emergencies of childhood. Prompt radiological diagnosis is often paramount to achieving a good outcome. An understanding of the normal and anomalous development of the midgut provides a basis for understanding the pathophysiology and the clinical presentation of malrotation and malrotation complicated by volvulus. In this essay, the radiologic findings of malrotation and volvulus are reviewed and illustrated with particular attention to the child with equivocal imaging findings.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46708/1/247_2004_Article_1279.pd

The Influence of Manga on the Graphic Novel

This material has been published in The Cambridge History of the Graphic Novel edited by Jan Baetens, Hugo Frey, Stephen E. Tabachnick. This version is free to view and download for personal use only. Not for re-distribution, re-sale or use in derivative works. © Cambridge University PressProviding a range of cogent examples, this chapter describes the influences of the Manga genre of comics strip on the Graphic Novel genre, over the last 35 years, considering the functions of domestication, foreignisation and transmedia on readers, markets and forms

Economic and Environmental Assessment of a Regional Construction and Building Materials Industry in Switzerland: An Applied Combination of Material-Flow Analysis, Life-Cycle Assessment and Input-Output Analysis

Background: Sustainability is an aspect that has been lived and practiced for several centuries. It was not until the industrialization at the end of the 19th century and the development of the global south since the 1950s that the sustainable use of our natural resources has been forgotten and the environmental impact of our actions has continuously increased. Due to recurring natural disasters and the scarcity of natural resources, sustainability is once again coming to the fore and mobilizing the younger generation in particular. Problem: Due to the consumption of large amounts of natural resources, the generation of large amounts of waste and the greenhouse gases emitted by the production of cement, the construction and building materials industry has become a particular focus of sustainable development. There are many approaches to make the construction and building materials industry more sustainable through technological developments, but it requires a comprehensive rethinking in the industry and a corresponding concept to minimize the demand for natural resources and the associated environmental impacts. The circular economy (CE) is just such a concept, as it defines industry-wide strategies across the entire value chain with the unifying goal of replacing the construction industry’s previous linear principle – take, make, dispose – to increase resource and energy efficiency and minimize environmental impact. However, as the implementation of a CE is very complex and faces various barriers, we need on the one hand a better understanding of the current economic structure and on the other hand an understanding of the potential impacts of a CE, especially on a regional basis. Objective: The present work aims to sharpen this understanding and to develop a practical tool with which a regional construction and building materials industry can be assessed. The data then serves as a basis for decision-making for companies and public administrations implementing CE-principles. Methodology: We use the already established methods of Material-Flow Analysis, Life-Cycle Assessment, and Input-Output Analysis, of which on the one hand the scientific basics are very well known and comprehensible even for non-experts, and on the other hand the individual methods are already established and widely used in different industries. We clarify the question of how these methods can be linked to enable a regional view of an industry in the context of the CE. Furthermore, we show which indicators should be used for environmental as well as economic considerations and how we can measure circularity in an industry. Results: Using the proposed model, we were able to identify hotspots in the mineral building materials value chain that have a significant impact on a CE and where policies have the most influence. For example, most policies focus on waste management (e.g., prevention of waste to landfill), but policies focusing on construction processes (e.g., procurement) would be useful, as this is where the greatest financial, as well as material leverage, can be expected. Furthermore, we were able to formulate initial findings on how companies can respond to the transition to a CE with business model innovations. In addition, we identified regional barriers to the implementation of a CE and formulated initial recommendations on how policymakers can respond to these barriers. Conclusion: The present work has developed a new model that provides new interpretive tools for evaluating a regional industry in the context of a CE and provides baseline data for effective formulations of business decisions and policy actions. All in all, we make an important contribution to the understanding of a regional CE with the presented methodology and initial conclusions