573 research outputs found
Reducing the carbon footprint through textile reuse: the case study of a textile valuation company
After food, housing, and transport, textiles are the fourth most pressured category in terms of raw material
and water use, and the fifth in terms of greenhouse gas emissions. In order to significantly reduce waste
and the use of natural resources in the textile and clothing industry, and to reduce the environmental impact
associated with the sector, thus contributing to sustainable development, there is a need to create business
models based on the principles of circular economy, in which clothes, fabrics, and fibers re-enter the
economy after their use. In environmental terms, we can say that reuse provides greater benefits than
recycling because it reduces the impact generated by the life cycle of textiles, particularly in reducing
greenhouse gas emissions (GHG). Currently, a few companies exist in the country to collect urban textile
"waste" with the purpose of textile valuation. Ultriplo (U3) is a nationwide company that aims essentially
at the valuation of collected textile waste by promoting reuse, contributing to sustainable development in
its environmental, social, and economic dimensions. The main objective of this study is to evaluate the
potential environmental benefits of reusing clothing at the end of product life, namely by reducing the
carbon footprint associated with the textile industry. For this study, the company provided a database for
the northern part of the country. The company's database is extensive and complex and can be described
simplistically as a table that compiles and integrates all the information regarding all the textile collection
routes. Furthermore, the database was limited to the first six months of the year 2021. In this study, only
variables such as Id, Start, End, Schedule, Mileage (Km), Total Pickups, Contentores, Filing, Weighing, Id
Contentor, Município, Filing contentor (%), and Weighing contentor (kg) were used. These variables were
selected because they were required to evaluate the reduction in greenhouse gas emissions (GHG) resulting
from the textile reuse activity developed by U3. Each kilogram of clothing that is reused and not incinerated
avoids the emission of 3.169 kg of CO2e, according to data from the European Commission. This value was
used to acess the reduction in GHG emission reduction assessment methodology developed in this study.
This methodology has allowed estimating the amount of CO2e not emitted to the atmosphere at the
municipality scale. The results show that, for instance, for Santa Maria da Feira municipality, for the six
months under study, a total of 330,61 tonnes of CO2e were not emitted to the atmosphere due to the total
weight of clothes collected for reuse. The developed methodology has the potential to be replicated in other
regions of the country
Jornalismo político no Brasil
Orientador: Nelson Rosario de SouzaMonografia (especialização) - Universidade Federal do Paraná, Especialização em Sociologia PolíticaInclui referênciasResumo: O presente trabalho acadêmico tem por objetivo entender a relação imprensapoder. A fundamentação teórica adquirida através de pesquisa bibliográfica indicou os rumos tomados pelo jornalismo responsável pelo acompanhamento da política no Brasil. O histórico apresentado indica que, desde o princípio da atividade de imprensa no país, esta está próxima ao poder político e econômico que está na liderança. O poder reconhece na imprensa a oportunidade de divulgar suas ideias e objetivos, enquanto os meios de comunicação, em alguns momentos da história, submetem-se aos interesses políticos. Conforme os regimes políticos no Brasil foram se desenvolvendo, a relação entre política e imprensa também foi se transformando. Se em regimes ditatoriais a imprensa sofreu censura declarada e apenas comunicava o que era oficialmente aceito, em um regime dito democrático, com maior facilidade ao acesso aos meios de informação, o jornalismo político torna-se espetáculo, ficando mais destacado em período eleitoral
Building a CPTED research culture in Portugal: a bibliometric and social network analysis
Although CPTED is recognized as an important crime deterrent for some decades, there are countries where it is still in its infancy, and knowledge and dissemination are scarce. Portugal is such an example. Only in the last decade has research specifically focused on CPTED, with little convergence between the different spheres of knowledge production, such as the academia, the police or the administration. In this paper, we argue that to build a CPTED culture, these spheres need to converge. Using the Portuguese CPTED experience as a case study, we apply methodologies of social network analysis to explore the relationships between different actors and the research time-line. Through a bibliographical analysis, we further delve on the authors and theories that most influenced Portuguese CPTED. This dual approach allows introducing the little known Portuguese CPTED experience to the international community, as well as discussing how the mechanisms of knowledge production integrate towards a more cohesive implementation
A representação da maternidade em "Insubmissas lágrimas de mulheres", de Conceição Evaristo
This academic work has as main objective to show that in the literature of Conceição Evaristo, there is a new look at maternity, stigmatized for a long time by the patriarchal culture, as something "Perfect". The definition of maternity depends on the implications and experiences of each woman, as mothers are the only ones capable of revealing what is really inside her. This new literary corpus presented by Conceição Evaristo, fills the absence that existed of the female voice in literature, specifically the voice of the woman / mother that in most literary writings is seen as an existent object only for the constitution of the identity of the other. Thus, in this new perspective the woman / mother ceases to be represented as a supporting actor and starts to act as the protagonist of her story.Este trabalho tem como objetivo principal mostrar que na literatura de Conceição Evaristo há um novo olhar para a maternidade, estigmatizada desde muito tempo pela cultura patriarcal, como algo “Perfeito”. A definição de maternidade passa a depender das implicações e vivências de cada mulher, que como mães, são as únicas capazes de revelar o que de verdade está em seu íntimo. Esse novo corpus literário apresentado por Conceição Evaristo preenche uma certa ausência que existia da voz feminina na literatura, especificamente a voz da mulher/mãe que na maioria das escritas literárias é vista como objeto existente apenas para a constituição da identidade do outro. Assim, nessa nova perspectiva a mulher/mãe deixa de ser representada como coadjuvante e passa a atuar como protagonista da sua história
Análise do impacto dos eventos gastronómicos na gestão dos restaurantes : estudo de caso da vila de Ponte de Lima
Mestrado em Gestão das Organizações : Ramo de Gestão de Empresas (parceria com a APNOR) na Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Viana do CasteloA presente dissertação pretende abordar o tema da gastronomia dentro do setor turístico empresarial.
Analisar a relação e o impacto que a realização de eventos gastronómicos provocam na gestão das empresas de restauração da região de Ponte de Lima, apresenta-se como o principal desafio da investigação.
Os principais objetivos do estudo serão relacionar a motivação gastronómica com a procura turística do destino e perceber de que forma a existência de eventos e feiras gastronómicas nas localidades, influenciam o planeamento e gestão dos empresários da restauração.
A escolha do tema resulta do envolvimento pessoal e profissional da autora, na atividade de alojamento turístico e restauração na região e surge ainda no alinhamento do seu percurso académico (licenciatura), na área de turismo.
Pretende-se com este estudo analisar a importância da gastronomia tradicional nos destinos turísticos e perceber a importância que os gestores dos estabelecimentos de restauração, atribuem à gastronomia local, sendo esta, um atrativo turístico.
Para se iniciar o estudo foi necessário encontrar as diversas abordagens teóricas que nos falam da gastronomia e de como esta se apresenta indissociável do desenvolvimento turístico.
Os métodos de investigação deste trabalho iniciaram com a pesquisa bibliográfica e documental para de seguida ser aplicado o inquérito por questionário aos gestores dos estabelecimentos de restauração em Ponte de Lima e por fim procedeu-se à e conclusões dos dados recolhidos.
As principais conclusões do estudo ditam que, de facto, a gastronomia, é considerada pelos gestores empresariais da restauração, um dos principais atrativos turísticos e que a organização e promoção de eventos turísticos pelas entidades locais, resulta num maior número de visitantes e numa maior afluência de clientes nos estabelecimentos de restauração.This study intends to address the theme of gastronomy within the tourism sector.
Analyzing the relationship and impact that hosting gastronomic events have on the management of catering companies in the Ponte de Lima region is the main challenge of the investigation.
The main objectives of the study will be to relate gastronomic motivation with the tourist demand of the destination and to understand how the existence of events and gastronomic fairs in the localities influence the planning and management of catering entrepreneurs.
The choice of the theme results from the personal and professional involvement of the author, in the activity of tourist accommodation and catering in the region and also appears in the alignment of her academic path (degree), in the tourism area.
The aim of this study is to analyze the importance of traditional cuisine in tourist destinations and to understand the importance that managers of catering establishments attribute to local cuisine, which is a tourist attraction.
To begin the study, it was necessary to find the different theoretical approaches that speak to us about gastronomy and how it is inseparable from tourism development.
The investigation methods of this work start with the bibliographical and documentary research and then the questionnaire survey is applied to managers of catering establishments in Ponte de Lima.
The main conclusions of the study dictate that, in fact, gastronomy, is considered by business managers of the restaurants establishments, one of the main tourist attractions and that the organization and promotion of tourist events by local entities, results in a greater number of visitors and a greater affluence customer in catering establishments
Natural attenuation processes in AMD context by mineralogical control: iron oxyhydroxides, oxyhydroxysulfates, and efflorescent sulfates
Acid mine drainage (AMD) is a common problem associated with the weathering of metal sulfide
wastes in abandoned mining areas, which can be rich in toxic metals and metalloids. Oxidative dissolution
of these minerals may negatively affect the soils and water reservoirs nearby. The formation of secondary
mineral phases such as iron oxyhydroxides, oxyhydroxysulfates, and efflorescent sulfates may be a natural
attenuation process in these areas because these minerals can scavenge potentially toxic elements. Typically
formed by the evaporation (efflorescent salts) or precipitation (ochreous iron-rich oxyhydroxides) these
minerals are highly soluble and reactive. Therefore, their characterization and inventory are particularly
important for predicting the cycles of retention/contamination or accumulation zones of potential toxic
elements (PTE) and acidity in mining contaminated systems.
The abandoned mines of Valdarcas and São Domingos were selected for the present study due to
their AMD signature and occurrence of some of these secondary minerals. Valdarcas (north of Portugal) is
a W-mine associated with a skarn deposit with sulfides that has already been rehabilitated. However, the
AMD problems remain in the watercourse that receives leachates from the waste dumps. São Domingos is
a Cu-mine composed of massive sulfide deposits that belong to the Iberian Pyrite Belt (south of Portugal).
This mining area, which is presently under remediation process, is highly contaminated and AMD is a longlasting problem. The samples collected in these mining areas were characterized by their morphology, size,
mineralogy, and chemical composition using different techniques: binocular microscopy, SEM-EDS, TEM,
BET, DRX, FTIR, and XPS.
In Valdarcas mine area, typical ochreous phases such as schwertmannite and goethite were
identified as the dominant secondary phases. These brownish-yellow ferric amorphous and poorly
crystalline minerals with high surface area (125 mg2
/m) can remove PTE via adsorption processes,
contributing to their retention in the mining environment. In contrast, at São Domingos, efflorescent sulfate
salts are more abundant. Melanterite and copiapite were the prevailing salts identified. With different
morphologies, these minerals are highly soluble and therefore play a relevant key in the
retention/mobilization cycles of hazardous contaminants, such as arsenic (As).
This integrative methodologic approach, based on the use of several techniques, allowed a
complete characterization of these minerals. In addition to composition, the surface properties that are
relevant for the adsorption ability, were also obtained. Therefore, the study revealed a diversity of behaviors
for the identified phases, suggesting various roles in increasing the resilience of the contaminated systems
Calibration and validation of the modified universal soil loss equation (musle) with localhydrologic and sedimentologic data
Modelos hidrossedimentológicos são úteis na análise ambiental de bacias hidrográficas não monitoradas. Entretanto, para que as suas predições sejam confiáveis, é necessário que os modelos sejam adequadamente calibrados evalidados para as condições locais. O objetivo do presente trabalho foi calibrar o coeficiente a da MUSLE para as condições da bacia do ribeirão Pipiripau, usando dados hidrossedimentológicos locais, bem como validar a equação calibrada, comuma série de dados diferente da usada na calibração. O coeficiente a da MUSLE foi calibrado por meio do ajuste entre os valores observados e calculados de aportede sedimento de eventos individuais, correspondentes ao período entre 1999 e2005, usando dados hidrológicos (Q e qp) observados. Para validação do modelo calibrado, a série usada correspondeu aos anos de 1998 e 2006-2009 (N.A.: dadoscorretos, ver p. 12), onde apenas os dados pluviométricos locais e os fatores CN, K,L, S, C e P da bacia, previamente obtidos, foram usados. Os resultados indicam quea MUSLE calibrada apresenta melhor acurácia na estimativa do aporte desedimento total anual (R2 = 0,68 e E = 0,61) do que em nível mensal (R2 = 0,44 e E =0,43). Como o coeficiente de ajuste a da MUSLE foi proporcional ao volume deprecipitação pluvial anual, este poderá ser usado para melhorar as predições do modelo.Hydro-sedimentologic models are useful in the environmental analysis of unmonitoredwatersheds. However, the models must be calibrated and validated for accurate predictions.The objective of this study was to calibrate MUSLE for the conditions of the Piripipau riverbasin (Brazil), using hydrologic and sedimentologic data from 1999 to 2005, and to validatethe calibrated model with another data set (1998, 2006-2009). MUSLE’s a coefficient wascalibrated fitting observed and calculated sediment yield values of individual events, usingobserved hydrologic data (Q and qp). In the validation stage of the calibrated model, onlyobserved rain gauge data and previously obtained CN, K, L, S, C, and P values of the watershedwere used. Results indicate that the calibrated MUSLE fit better to total annual sedimentyields (R2 = 0.68 and E = 0.61) than monthly Y values (R2 = 0.44 and E = 0.43). Sincecoefficient a was directly related to the annual precipitation volume, it can be used to improveMUSLE predictions
Simulation of a Production Line with Automated Guided Vehicle: A Case Study
Currently, companies have increasingly needed to improve and develop their processes to flexible the production in order to reduce waiting times and increase productivity through smaller time intervals. To achieve these objectives, efficient and automated transport and handling material systems are required. Therefore, the AGV systems (Automated Guided Vehicle) are often used to optimize the flow of materials within the production systems. In this paper, the author evaluates the usage of an AGV system in an industrial environment and analyzes the advantages, disadvantages of the project. Furthermore, the author uses the systems simulation software Promodel® 7.0 to develop a model, based on data collected from real production system, in order to analyze and optimize the use of AGVs. Throughout this paper, problems are identified as well as solution adopted by the author and the results obtained from the simulations
Inter-relação de práticas e rotinas estratégicas no desempenho da pesquisa universitária
Purpose: This study sheds light on the relationship between two perspectives, the strategy-as-practice (SAP) approach and the dynamic aspect of routines. We seek to understand how the interrelationship between practices and routines reflect on university corporate results.
Methodology: We conducted a case study in a postgraduate program in management at a not-for-profit university focusing on university research activities. 42 interviews were carried out, 19 observations were made in formal and informal social events and institutional documents were collected from the program and from the governmental body that regulates stricto sensu postgraduate studies in Brazil.
Originality: The existing research suggests the approximation of these perspectives – SAP and dynamic routines – and the need to integrate them to deepen the understanding of the strategic phenomenon.
Main Results: Our results indicate that program strategies are aligned with regulatory and funding bodies and multiple practices and routines relate to and complement the range of research performance outcomes. Academic training, previous experiences and specific skills influence the behavior of actors, while tools and interactions play crucial roles in conducting research, shaping approaches and results, essential in academic research.
Theoretical contributions: The article contributes through understandings about the existence of different interdependent and complementary relationships in the strategic process of a postgraduate program that condition the behavior of the actors involved and the research performance achieved.Propósito: Este estudio arroja luz sobre la relación entre dos perspectivas, el enfoque de estrategia como práctica (EPS) y el aspecto dinámico de las rutinas. Buscamos comprender cómo la interrelación entre prácticas y rutinas se refleja en los resultados corporativos universitarios.
Metodología: Realizamos un estudio de caso en un programa de posgrado en administración en una universidad sin fines de lucro con un enfoque en actividades de investigación universitaria. Se realizaron 42 entrevistas, se realizaron 19 observaciones en eventos sociales formales e informales y se recolectaron documentos institucionales del programa y del órgano gubernamental que regula los estudios de posgrado stricto sensu en Brasil.
Originalidad: Las investigaciones existentes sugieren la aproximación de estas perspectivas – EPS y rutinas dinámicas – y la necesidad de integrarlas para profundizar la comprensión del fenómeno estratégico.
Principales resultados: Nuestros resultados indican que las estrategias del programa están alineadas con los organismos reguladores y de financiación y que múltiples prácticas y rutinas se relacionan y complementan la gama de resultados del desempeño de la investigación. La formación académica, las experiencias previas y las habilidades específicas influyen en el comportamiento de los actores, mientras que las herramientas y las interacciones desempeñan papeles cruciales en la realización de investigaciones, dando forma a enfoques y resultados, esenciales en la investigación académica.
Aportes teóricos: El artículo contribuye a comprender la existencia de diferentes relaciones de interdependencia y complementariedad en el proceso estratégico de un programa de posgrado que condicionan el comportamiento de los actores involucrados y el desempeño investigativo alcanzado.Objetivo: Este estudo lança luz sobre a relação entre duas perspectivas, a abordagem da estratégia como prática (EPS) e o aspecto dinâmico das rotinas. Buscamos compreender como a inter-relação entre práticas e rotinas refletem nos resultados corporativos universitários.
Metodologia: Realizamos um estudo de caso em um programa de pós-graduação em administração de uma universidade sem fins lucrativos com foco em atividades de pesquisa universitária. Foram realizadas 42 entrevistas, 19 observações em eventos sociais formais e informais e coletados documentos institucionais do programa e do órgão governamental que regulamenta a pós-graduação stricto sensu no Brasil.
Originalidade: A pesquisa existente sugere a aproximação dessas perspectivas – EPS e rotinas dinâmicas – e a necessidade de integrá-las para aprofundar o entendimento sobre o fenômeno estratégico.
Principais Resultados: Nossos resultados indicam que as estratégias do programa são alinhadas aos órgãos reguladores e financiadores e múltiplas práticas e duas rotinas se relacionam e complementa para o leque de resultados de desempenho de pesquisa. A formação acadêmica, experiências anteriores e habilidades específicas influenciam o comportamento dos atores, enquanto ferramentas e interações desempenham papéis cruciais na condução das pesquisas, moldando abordagens e resultados, essenciais na pesquisa acadêmica.
Contribuições teóricas: O artigo contribui mediante os entendimentos sobre a existência de diferentes relações interdependentes e complementares no processo estratégico de um programa de pós-graduação que condicionam o comportamento dos atores envolvidos e o desempenho de pesquisa alcançado
Hypertrophic Cranial Pachymeningitis and Skull Base Osteomyelitis by Pseudomonas Aeruginosa: Case Report and Review of the Literature
Hypertrophic cranial pachymeningitis (HCP) is an uncommon disorder characterized by localized or diffuse thickening of the dura mater, and it usually presents with multiple cranial neurophaties. It has been associated with a variety of inflammatory, infectious, traumatic, toxic and neoplasic diseases, when no specific cause is found the process is called idiopathic. The infectious cases occur in patients under systemic immunosuppression, which have an evident contiguous source or those who have undergone neurosurgical procedures. We describe a case of a 62-year-old immunosuppressed woman with diabetes and rheumatoid arthritis, which had HCP and osteomyelitis of the skull base caused by pseudomonas aeruginosa, presenting with headache and diplopia. We believe this is the second documented case of pachymeningitis secondary to this microorganism. As a multifactorial disease, it is essencial to determine the specific causative agent of HCP before making treatment decisions, and great care is needed with immunocompromised patients
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