With increasing urban expansion and rising global demand for food production, integrating aquaponics within the urban contexts can be considered an alternative sustainable solution to enrich the local production and self-sufficiency. In this research, we aim to study the aquaponics system and provide a design guide for implementing the urban version of the system in the city of Malmo. The design guide will be also practically tested in a form of an architectural proposal at the end of the research. To reach the results, various case studies and academic research were investigated. In addition to other qualitative and quantitative methodologies, such as interviews, questionnaire, and ethnographic studies that contributed to making progress during the research’s different phases. The analysis of data was to generate sustainable bases for urban aquaponics that go in line with the city’s conditions and citizens’ aspirations. Accordingly, several methods and techniques were deducted to be used for the sustainable integration of the aquaponics system within the urban context of Malmo. Nevertheless, the integration process can contribute to including other operations with the aim of increasing aquaponics sustainability and solving urban issues within the context. However, the design guide produced in this paper is mainly for the city of Malmo, but it can be adjusted to other social and geographical contexts.

After the repeal of the Corn Laws ended the policy of protectionism which had enabled Britain to feed herself from within her own resources, free trade resulted in domestic food production constituting only 30% of the British diet. This study looks at the political discourse from 1880 to 1939 when the ¿empty countryside¿ became a symbol of agricultural decline. Emerging radical and socialist narratives put forward approaches for rural regeneration and increased food production. Other narratives suggested that agricultural decline was one manifestation of national decline whereby a self sufficient and proud nation was being betrayed by Capitalism. Both Left and Right offered up the prospect of different solutions predicated upon shared perceptions of ¿Englishness.¿ The experience of Irish famine failed to inform political action or policy making. The study notes the importance of War upon the development of food policy. Increasingly, the State joined forces with the NFU in a corporate endeavour which sought to manage, rather than increase, food production and created structures which became increasingly important in the context of rearmament. Increased food production was rejected upon defence grounds in that free trade and a navy were seen as appropriate safeguards. Those countries which sought to follow self sufficiency ¿ or autarky ¿ are portrayed as warlike in their intentions; by 1939 all mainstream political parties rejected the notion of artificially increased food production. Those who continued to press for increased food production concentrated either upon earlier pre Capitalist societies or were attracted by Fascism and strong leadership. After such searches became increasingly problematic there was emphasis upon the soil, with the adoption of an approach which was both practical and mystical.

No description available.

Los residuos sólidos de las industrias de productos hidrobiológicos como lo son las cabezas de los langostinos generan la posibilidad de obtener subproductos como harinas que pueden ser empleados como materia prima para la alimentación de animales debido a que poseen un alto contenido de proteínas, carbohidratos, grasas, pigmentos, minerales, quitina, entre otros, las cuales son atractivas a la hora de la formulación de nuevos productos alimenticios. Con respecto al primer objetivo, concerniente al estudio de mercado, se indagó sobre demanda y oferta del producto, logrando descubrir la insatisfacción del mercado, obteniendo de esta forma la demanda del presente trabajo. Asimismo, el segundo resultado enfocado al diseño de la planta, se instituyó las disposiciones idóneas para alcanzar el rango de producción esperado. Se evaluó y seleccionó la ingeniería requerida para el procesamiento de la harina a partir de las cabezas de langostino. Por último, el tercer resultado consiste en la valoración económica- financiera. Se logró resultados financieros planificados (estados de ganancia y pérdida, flujos de caja y balances en general) apoyados en indicadores como el valor anual neto (VAN) y la tasa de interés de retorno (TIR), por lo cual se logró comprobar si en términos financieros el proyecto es admisible. Relacionando a este proyecto el VAN ascendió a un monto de S/ 3 418 734,36 y el TIR que nos arrojó un 47% respectivamente. / The solid residues of the industries of hydrobiological products such as the heads of prawns, generate the possibility of obtaining by-products as flours that can be used as raw material for feeding animals since they have a high content of proteins, carbohydrates, fats, pigments, minerals, chitin, among others, which are attractive when formulating new food products. For the first objective that is the market study, the demand and supply of the product was investigated, in this way the unsatisfied demand of the market was calculated and thus the demand of the project was obtained. Regarding the second result that is the design of the plant, the necessary guidelines were established to achieve the level of production required, the evaluation and selection of the necessary engineering for the flour process from the shrimp heads. To finalize the third result, which is the economic-financial evaluation, the projected financial results (profit and loss statements, cash flows and balance sheets) were obtained with the help of indicators such as net annual value (NPV) And the Return Rate (IRR), with which it was possible to determine if the project is economically acceptable. In the case of this project, the NPV amounts to a positive amount which is S/ 3 418 734,36 and the TIR, which yielded 47 %, respectively.

Die globalen Mitteltemperaturen könnten bis 2100 um 2◦C bis 4.5◦C über vorindustriellem Wert steigen sollten CO2 Emissionen nicht oder nur unzureichend gesenkt werden. Klima-Engineering befasst sich deshalb mit der gezielten Abkühlung des Klimas, z.B. durch terrestrischen Kohlendioxidentzugs (tCDR). Insbesondere wird der Anbau von großflächigen Biomasseplantagen (BP) in Kombination mit der Erstellung von langlebigen Kohlenstoffprodukten wie Bioenergie oder Biokohle in Betracht gezogen. Die vorliegende Doktorarbeit untersucht die tCDR Potentiale und möglichen Konsequenzen von BP auf Nahrungsmittelproduktion, Ökosysteme und das Klima selbst mit Hilfe der Analyse von Landnutzungszenarien simuliert mit einem Biosphärenmodell. Insgesamt wird das tCDR Potential von BP als gering befunden, unabhängig vom Emissionsszenario und ab wann oder wie flächendeckend BP angebaut werden. Demgegenüber stehen meist die zuvor genannten, ungewünschten Konsequenzen. In einem Szenario mit hohen CO2 Konzentrationen kann selbst unbeschränkte Landverfügbarkeit für tCDR die bisherigen Emissionen nicht ausgleichen. Anders jedoch, wenn gleichzeitig Emissionen eingespart. In beiden Fällen führen diese Landumwandlungen jedoch zu sehr hohen “Kosten” für Ökosysteme und die Nahrungsmittelproduktion. Um deren Schutz zu gewährleisten kann die Landverfügbarkeit für tCDR beschränkt werden, was jedoch die tCDR Potentiale trotz baldiger Etablierung sehr einschränkt. Auch die Potentiale des RCP2.6 bleiben deutlich unter den Anforderungen. Das Potential könnte jedoch durch Erhöhung der Umwandlungseffizienzen von Biomasse, neuen Managementoptionen oder der Aufwertung degradierter Flächen durch BP erhöht werden. Diese Doktorarbeit kann abschließend nicht die Annahme unterstützen, dass tCDR eine effektive und umweltfreundliche Methode der Kohlenstoffsequestrierung, und damit eine Ersetzung von strengen Mitigationspfaden, sein könnte. / Global mean temperatures could change by 2◦C to 4.5◦C above pre-industrial levels until 2100 if mitigation enforcement of CO2 emissions fails. To counteract this projected global warming, climate engineering techniques aim at intendedly cooling Earth’s climate for example through terrestrial carbon dioxide removal (tCDR). Here, tCDR refers to the establishment of large-scale biomass plantations (BPs) in combination with the production of long-lasting carbon products such as bioenergy with carbon capture and storage or biochar. This thesis examines the potentials and possible consequences of tCDR by analysing land-use scenarios with different spatial and temporal scales of BPs using an advanced biosphere model forced by varying climate projections. Synthesised, the potential of tCDR to permanently extract CO2 out of the atmosphere is found to be small, regardless of the emission scenario, the point of onset or the spatial extent. On the contrary, the aforementioned trade-offs and impacts are shown to be unfavourable in most cases. In a high emission scenario even unlimited area availability for tCDR could not reverse past emissions sufficiently. However, simultaneous emission reductions could result in strong carbon extractions reversing past emissions. In both cases, land transformation for tCDR leads to high “costs” for ecosystems and food production. Restricting the available land for BPs by these trade-off constraints leaves very small tCDR despite a near-future onset. Similarly, simulated tCDR potentials on dedicated BP areas defined in the RCP2.6 scenario stay below the aimed values using current management practices. Some potential may lie the reduction of carbon losses from field to end-products, new management options and the restoration of degraded soils with BPs. This thesis contradicts the assumption that tCDR could be an effective and environmentally friendly way of complementing or substituting strong and rapid mitigation efforts.

Estudos demonstram que a inserção de pequenos produtores e assentados rurais na produção voltada às grandes cadeias agroalimentares globais pode levar a mudanças nas estruturas de produção e consumo de alimentos deles próprios. Como consequência, tem-se constatado maior dependência da renda para obtenção de alimentos, o que impacta a segurança alimentar das famílias rurais em seus três princípios estruturantes: acesso, qualidade e reprodução social e da cultura alimentar. Diante disso, este estudo objetivou caracterizar as práticas alimentares de assentados rurais do Alto Xingu, entender os fatores que influenciam a escolha e obtenção dos alimentos e sua relação com o atual contexto de mudança no uso da terra na região. Para isso, partiu-se de uma abordagem interdisciplinar, utilizando-se a observação participante, entrevistas não estruturadas (Metodologia Geradora de Dados de Posey) e Recordatório 24 horas de consumo alimentar. Os resultados deste estudo indicam que muitas variáveis contribuem para a formação do atual contexto de transformações socioeconômicas: envelhecimento rural e a aposentadoria; o aumento da prestação de serviços fora do lote; a inserção da mulher no mercado de trabalho; as dificuldades de obtenção de investimento, tecnologia e conhecimento; a limitação hídrica; o êxodo rural; a valorização das terras; as possibilidades de arrendamento; e a dificuldade em se diversificar a produção agrícola além da pecuária e do plantio de soja. Essas transformações socioeconômicas se materializam na paisagem, pela mudança no uso da terra, e nas práticas alimentares, pela diminuição da produção para autoconsumo. A manutenção da produção para autoconsumo mostrou ser mais vulnerável no caso de hortaliças (sobretudo verduras), seguida pela criação de gado, produção de leite, cultivo de mandioca, criação de suínos, frango e, então, frutas (culturas perenes). Em termos de cultura alimentar, o perfil de alimentos que compõem a dieta ainda é o mesmo, caracterizado pelo trio arroz, feijão e carne de vaca. Por outro lado, o que vem mudando nas práticas alimentares dos assentados é a forma de obtenção dos alimentos. Como consequência, a maior dependência da compra de alimentos pode impactar a segurança alimentar das famílias e influenciar a manutenção do hábito alimentar no longo prazo. Conclui-se que a mudança na forma como se obtém o alimento já é o reflexo - ao mesmo tempo em que também reflete - um novo modo de vida do assentado rural. Assim, as transformações nos modos de vidas dos assentados podem colocar em risco a sua segurança alimentar - ao mesmo tempo em que a insegurança alimentar pode reforçar as transformações no modo de vida local. / Researches show that the inclusion of small farmers and rural settlers in large global agri-food chains can lead to changes in food patterns regarding production and consumption. As a result, studies show that there is greater dependency on the income to obtain food, which impacts food security of rural households regarding food access, food quality and maintenance of social reproduction and food culture. Therefore, this study aimed to characterize the eating patterns of Upper Xingu rural settlers, the drivers for food choice and food acquisition and their relation to the land use change in the region. In this regard, an interdisciplinary approach was applied, together with the participant observation, unstructured interviews (Generative Methodology Posey data) and 24-hour dietary recall for food consumption. This research has achieved a number of different results. There are several variables hat compose the current context of socio-economic transformations: rural settlers aging and retirement; non-farm-income generating activities; women inclusion in labor market; the difficulties in accessing investment, technology and knowledge; water limitation; rural exodus; land valuation; the possibility of leasing; and the difficulty to diversify agricultural production besides cattle raising and soybean planting. Those socio-economic transformations are materialized in the landscape, by the land use change, and in the eating practices, by the decrease of food production for self-consumption. The maintenance of food production for self-consumption is more vulnerable for vegetables (especially greens), followed by cattle, milk production, cassava, pork, poultry and fruit (perennial crops). Foods that compose the diet of rural settlers have not changed over years, being characterized by rice, beans and beef. Although, eating practices have changed regarding the forms of getting food. As a result, the greater dependency on buying food can have impact on food security of families and influence the maintenance of future eating habits. Finally, this research concludes that the change in food access is the reflection - while it also reflects - a new way of life among rural settlers. Therefore, changes in the rural settlers\' way of life may endanger food security, at the same time that food insecurity may reinforce the changes in the local way of life.

Submitted by Fabricia Fialho Reginato (fabriciar) on 2015-06-29T23:25:30Z No. of bitstreams: 1 Galhegos.pdf: 3090921 bytes, checksum: a1655601b99ff65b1ba2fd8d82b58a55 (MD5) / Made available in DSpace on 2015-06-29T23:25:30Z (GMT). No. of bitstreams: 1 Galhegos.pdf: 3090921 bytes, checksum: a1655601b99ff65b1ba2fd8d82b58a55 (MD5) Previous issue date: 2013 / Nenhuma / Após mais de um século e meio de perigosos e esporádicos contatos com os nativos do Chaco, a Coroa espanhola iniciou, na segunda metade do século 17, um projeto de catequização através do incentivo à atuação de missões evangélicas na região, a fim de estabelecer uma aproximação pacífica com os diversos grupos indígenas e permitir uma passagem segura à rota comercial entre o porto de Buenos Aires e as minas andinas do Chile. Ainda que esta nova abordagem colonizadora não tenha resultado na pacificação dos índios chaquenhos, o contato foi intensificado por causa da proliferação de reduções evangélicas naquela região ao longo do setecentos, levando muitos missionários e expedicionários a aventurarem-se no interior do Chaco, com o intuito de contatarem grupos mais afastados do convívio colonial. Esta oportunidade gerou uma série de impressões, críticas, descrições de caráter etnográfico, relatórios oficiais, acordos e negociações documentados ao longo de todo o século 18, que permitem a análise não apenas do discurso que os espanhóis produziram a respeito do contato, mas também da postura, do entendimento e das escolhas que os índios tiveram em relação ao convívio com os agentes e instituições coloniais. A presente tese tem como objetivo, a partir da análise de registros históricos produzidos por observadores civis e religiosos, de uma historiografia sobre o contato entre nativos e europeus no Chaco e de etnografias produzidas a respeito de grupos chaquenhos contemporâneos, demonstrar que os índios tomavam suas decisões e atitudes a partir de uma lógica que não era espontânea ou casuística, nem fruto do improviso frente às novas situações postas pelo avanço colonial. Esta lógica se sustentava num complexo sistema mitológico que guiava as percepções e o pensamento indígena, dotando-lhes de uma cosmologia própria e distinta da dos colonizadores modernos. Para comprovar tal hipótese, analiso três características do cotidiano socioeconômico indígena, cujos fundamentos práticos respaldam-se na relação com elementos mitológicos e, consequentemente, no entendimento cosmológico que os índios possuíam do mundo: a guerra, as trocas reciprocitárias e o sistema econômico de produção e consumo alimentar. / After more than one and a half century of dangerous and sporadic contacts made with natives from Chaco, the Spanish Crown began, in the second half of the seventeenth century, an evangelizing project by the encouragement of evangelical missions in that region, in order to establish a peaceful approach with the various indigenous groups and to ensure a safe transit to the trade route between Buenos Aires harbor and Chilean Andean mines. Although this new colonizing approach has not resulted in a native pacification, the contact between them was intensified by the proliferation of Reductions in the region over the referred century, leading many missionaries and explorers to venture into the interior of Chaco, with the purpose of having a broader contact with the uncontacted groups. This opportunity has generated a series of impressions, criticism, ethnographic descriptions, official reports, agreements and negotiations, which had been documented throughout the eighteenth century, enabling an analysis not only of the Spanish speech concerning the contact, but also the posture, the understanding and the choices indians made regarding the contact with agents and colonial institutions. This thesis details, as a result of studies carried out in a variety of historical records produced by civil and religious observers, from a historiography on the contact between natives and Europeans in Chaco and from ethnographies produced about Chaco’s contemporary groups, that indians made their own decisions and took actions on the basis of a logic that was not spontaneous or case-by-case, neither the result of improvisation with the new situations posed by colonial advance. This logic is held in a complex mythological system which guided the indigenous way of thinking and perceptions, providing their own cosmology, unlike that of modern colonizers. To demonstrate this hypothesis, I analyze three indigenous socioeconomic features on a daily basis, whose practical backgrounds rely on the relationship with mythological elements and thus on the cosmological understanding that indians possessed about the world: the war, the trade and the economic system of production and food consumption.

This doctoral thesis analyses the role of historical urban agriculture in a long-time perspective, through a combination of overarching surveys of Swedish towns and detailed studies of one town – Uppsala in east-central Sweden. The study shows how agricultural land – town land – of various sizes was donated to towns repeatedly during medieval times and in the 16th and 17th centuries. The study examines urban food production at three points in time, and concludes that grain production and, later, potato production as well was substantial in many towns, indicating high levels of urban self-sufficiency. This allows new perspectives concerning the interpretation of urban food provision, as urban dependency on countryside food production might have varied considerably between towns. In addition, the study shows how urban agriculture was connected to social welfare systems, in particular aiming at supporting urban widows. The results in this thesis provide an historical context to the increasing discussions about present-day urban agriculture globally, and identify a number of factors that may create or counteract opportunities for urban agriculture.

Diss. (sammanfattning) Linköping : Linköpings universitet, 2005. / Härtill 5 uppsatser.

Submitted by Emanuel Varela Cardoso (emanuel.varela@ufcg.edu.br) on 2018-08-22T19:06:14Z No. of bitstreams: 1 DÉBORA RAFAELLY SOARES SILVA – DISSERTAÇÃO (PPGEP) 2015.pdf: 2746746 bytes, checksum: 81737093cb2d8efce111d7e4dc007773 (MD5) / Made available in DSpace on 2018-08-22T19:06:14Z (GMT). No. of bitstreams: 1 DÉBORA RAFAELLY SOARES SILVA – DISSERTAÇÃO (PPGEP) 2015.pdf: 2746746 bytes, checksum: 81737093cb2d8efce111d7e4dc007773 (MD5) Previous issue date: 2015-08 / Capes / O gergelim é uma cultura bastante adaptada às condições edafoclimáticas do Nordeste, configurando-se como um excelente potencial econômico para esta região, entretanto, as sementes perdem rapidamente a viabilidade quando manipuladas e armazenadas sem os devidos cuidados, sendo necessário o uso de técnicas que preservem a qualidade dessas sementes ao longo do armazenamento. Assim, objetivou-se com este trabalho determinar as propriedades físicas, bem como, o estudo da cinética de secagem desta oleaginosa quando submetida às temperaturas de 30, 35, 40 e 45°C aplicando diferentes modelos matemáticos aos dados observados, além de obter as propriedades termodinâmicas durante a secagem. As sementes de gergelim cultivar BRS Seda foram caracterizadas fisicamente quanto a sua forma, tamanho, volume, área superficial, massa especifica, circularidade, esfericidade e a massa de 1000 sementes. As sementes foram submetidas à secagem em um secador de leito fixo, nas temperaturas de 30, 35, 40 e 45 °C. Os dados experimentais de secagem das sementes de gergelim em camada fina foram ajustados às equações de Page, Henderson e Pabis, Lewis, Cavalcanti Mata, Thompson e Midilli. Com base nos resultados obtidos para o ângulo de repouso das sementes de gergelim, pode-se afirmar que esta cultivar apresenta uma boa fluidez, favorecendo o processamento deste produto. Com relação à massa de mil sementes, verifica-se que a cultivar avaliada atende satisfatoriamente aos padrões exigidos pelo mercado. A melhor predição ao processo de cinética de secagem foi obtida pelo modelo de Cavalcanti Mata. O aumento da temperatura do ar de secagem promoveu o aumento da difusividade das sementes e da energia livre de Gibbs e reduziu os valores das propriedades de entalpia e entropia. / Sesame is a crop very adapted to the edaphoclimatic conditions of the Northeast, constituting as an excellent economic potential for this region, however, the seeds lose the viability quickly when manipulated and stored without the proper care, being necessary the use of techniques that preserve the quality of these seeds throughout the storage. The objective of this study was to determine the physical properties and the drying kinetics of this oil when subjected to temperatures of 30, 35, 40 and 45° C, applying different mathematical models to the observed data. thermodynamic properties during drying. Silage BRS sesame seeds were physically characterized as to their shape, size, volume, surface area, specific mass, circularity, sphericity and the mass of 1000 seeds. The seeds were dried in a fixed bed dryer at temperatures of 30, 35, 40 and 45°C. Experimental drying data of the thin layer sesame seeds were adjusted to the equations of Page, Henderson and Pabis, Lewis, Cavalcanti Mata, Thompson and Midilli. Based on the results obtained for the angle of repose of the sesame seeds, it can be stated that this cultivar presents an excellent flowability, favoring the processing of this product. With respect to the mass of one thousand seeds, it is verified that the evaluated cultivar satisfies to the standards demanded by the market. The best prediction to the drying kinetic process was obtained by Cavalcanti Mata model. Increasing drying air temperature promoted increased seed diffusivity and Gibbs free energy and reduced enthalpy and entropy values.