As preocupações, desejos e necessidades dos consumidores à jusante tendem a guiar, cada vez mais, as iniciativas dos produtores à montante e esta é uma realidade também na agricultura, com a seleção de alimentos mais saudáveis, saborosos e com valor agregado por parte dos compradores, gerando um ambiente propício para produtos com estas características. O azeite extra virgem de oliva, cujas características se enquadram nos novos hábitos alimentares, vem assumindo uma posição de destaque entre os consumidores do mundo todo e não é diferente no Brasil. A despeito da pouca tradição na produção olivícola, o Brasil e em especial o Rio Grande do Sul, ao longo da última década tem iniciado uma produção concreta deste alimento, o qual vem chegando lentamente às gôndolas dos supermercados locais e nacionais gozando de uma reputação excelente. Diante, portanto, da possível emergência deste sistema de produção agrícola, da demanda potencial deste produto e da possibilidade de satisfazê-la por meio da produção local em contraposição às importações, entendeu-se que um estudo deste fenômeno recente e por conseguinte pouco analisado pode lançar as bases teóricas para a sua compreensão. Assim, teorias ligadas à governança foram utilizadas para a identificação da organização e coordenação do sistema. Para a análise dos elementos básicos do sistema, o referencial teórico utilizado foi o de sistemas complexos e para a compreensão da relação dos elementos básicos na formação de um sistema complexo, aplicou-se o ferramental da economia institucional evolucionária. Em função deste referencial teórico e da problemática a ser trabalhada, optou-se por um método reconhecidamente institucional com uma abordagem qualitativa, ou seja, um estudo de caso em modo exploratório, realizando entrevistas com participantes considerados chave no sistema e submetendo posteriormente os dados colhidos no campo aos dados secundários e ao referencial teórico. Os resultados encontrados apontam para um gradual florescimento da organização do sistema, com a coordenação não mercadológica do setor, entende-se governança, a cargo dos governos estadual e federal, mas não foram encontrados, até o momento, indícios de uma governança por parte da base, isto é, dos produtores. No que tange ao relacionamento dos elementos para a emergência do sistema, verificou-se que esta se dá por meio das trocas de informações constantes e transações que ocorrem entre os agentes e a economia local, influenciando uns aos outros em uma dinâmica base-topo e no sentido inverso, topo-base, quando o sistema reage às influências e inicia a estimular as estruturas de governança e infra-estrutura institucional. Nesta perspectiva, entende-se que os elementos do sistema que está efetivamente emergindo foram caracterizados, bem como sua relação com a economia local e que é imprescindível, para os participantes, que este sistema complexo seja entendido e tratado como tal, com intervenções adequadas, de modo que possa, desta forma, propiciar ganhos a todos os envolvidos. / Consumers concerns, desires and necessities in downstream tend to increasingly guide initiatives of producers in the upstream and this is a reality also in agriculture, with the selection of healthier, tastier, and with higher market value food, which generates a welcoming environment for products with such characteristics. Extra virgin olive oil, whose characteristics fit in the new dietary habits, has been assuming a highlighted position among consumers from the whole world, which is not different in Brazil. Despite having little tradition in olive cultivation, Brazil, especially the state of Rio Grande do Sul, has started since the last decade a solid production of this product, which has slowly reached national and international supermarkets’ shelves while receiving an excellent reputation. Therefore, with the possible emergence of this agricultural production system, and by the high demand of the product as well as the possibility of fulfilling this demand through local production instead of imports, we assume that a study about this recent, and consequently little studied, phenomenon can provide theoretical basis for its comprehension. Hence, governance theories were used to identify the system’s organization and coordination. In order to analyze basic elements of the system, the theoretical background used was that of complex systems; for the comprehension of the basic elements’ relation in the formation of a complex system, the apparatus of institutional-evolutionary economics was applied. Having in mind this theoretical background and the problem studied, we opted for a method acknowledgedly institutional with a qualitative approach i.e. an exploratory case study conducting interviews with participants considered as fundamental in the system, submitting afterwards the data collected in field to the secondary data and the theoretical background. The results obtained point to a gradual blooming of the system’s organization, with coordination not subjected to the market action of the sector, by which is understood governance, of Federal and State responsibility. However, until the moment evidences were not found of a governance of the base i.e. the producers. In reference to the relationship of the elements for the system’s emergence, it was verified that this occurs by means of constant information exchange and transactions that occur between the agents and the local economy. The agents and the local economy influence each other reciprocally in a bottom-up dynamics and in the reverse, topdown, when the system reacts to influences and begins to stimulate governance structures and institutional infrastructure. In this perspective, it is understood that the system’s elements that are effectively emerging were characterized, as well as their relation with local economy. It is crucial for the participants that this complex system can be understood and treated as so, with adequate interventions in a way that it can propitiate gains to all parts involved.

As preocupações, desejos e necessidades dos consumidores à jusante tendem a guiar, cada vez mais, as iniciativas dos produtores à montante e esta é uma realidade também na agricultura, com a seleção de alimentos mais saudáveis, saborosos e com valor agregado por parte dos compradores, gerando um ambiente propício para produtos com estas características. O azeite extra virgem de oliva, cujas características se enquadram nos novos hábitos alimentares, vem assumindo uma posição de destaque entre os consumidores do mundo todo e não é diferente no Brasil. A despeito da pouca tradição na produção olivícola, o Brasil e em especial o Rio Grande do Sul, ao longo da última década tem iniciado uma produção concreta deste alimento, o qual vem chegando lentamente às gôndolas dos supermercados locais e nacionais gozando de uma reputação excelente. Diante, portanto, da possível emergência deste sistema de produção agrícola, da demanda potencial deste produto e da possibilidade de satisfazê-la por meio da produção local em contraposição às importações, entendeu-se que um estudo deste fenômeno recente e por conseguinte pouco analisado pode lançar as bases teóricas para a sua compreensão. Assim, teorias ligadas à governança foram utilizadas para a identificação da organização e coordenação do sistema. Para a análise dos elementos básicos do sistema, o referencial teórico utilizado foi o de sistemas complexos e para a compreensão da relação dos elementos básicos na formação de um sistema complexo, aplicou-se o ferramental da economia institucional evolucionária. Em função deste referencial teórico e da problemática a ser trabalhada, optou-se por um método reconhecidamente institucional com uma abordagem qualitativa, ou seja, um estudo de caso em modo exploratório, realizando entrevistas com participantes considerados chave no sistema e submetendo posteriormente os dados colhidos no campo aos dados secundários e ao referencial teórico. Os resultados encontrados apontam para um gradual florescimento da organização do sistema, com a coordenação não mercadológica do setor, entende-se governança, a cargo dos governos estadual e federal, mas não foram encontrados, até o momento, indícios de uma governança por parte da base, isto é, dos produtores. No que tange ao relacionamento dos elementos para a emergência do sistema, verificou-se que esta se dá por meio das trocas de informações constantes e transações que ocorrem entre os agentes e a economia local, influenciando uns aos outros em uma dinâmica base-topo e no sentido inverso, topo-base, quando o sistema reage às influências e inicia a estimular as estruturas de governança e infra-estrutura institucional. Nesta perspectiva, entende-se que os elementos do sistema que está efetivamente emergindo foram caracterizados, bem como sua relação com a economia local e que é imprescindível, para os participantes, que este sistema complexo seja entendido e tratado como tal, com intervenções adequadas, de modo que possa, desta forma, propiciar ganhos a todos os envolvidos. / Consumers concerns, desires and necessities in downstream tend to increasingly guide initiatives of producers in the upstream and this is a reality also in agriculture, with the selection of healthier, tastier, and with higher market value food, which generates a welcoming environment for products with such characteristics. Extra virgin olive oil, whose characteristics fit in the new dietary habits, has been assuming a highlighted position among consumers from the whole world, which is not different in Brazil. Despite having little tradition in olive cultivation, Brazil, especially the state of Rio Grande do Sul, has started since the last decade a solid production of this product, which has slowly reached national and international supermarkets’ shelves while receiving an excellent reputation. Therefore, with the possible emergence of this agricultural production system, and by the high demand of the product as well as the possibility of fulfilling this demand through local production instead of imports, we assume that a study about this recent, and consequently little studied, phenomenon can provide theoretical basis for its comprehension. Hence, governance theories were used to identify the system’s organization and coordination. In order to analyze basic elements of the system, the theoretical background used was that of complex systems; for the comprehension of the basic elements’ relation in the formation of a complex system, the apparatus of institutional-evolutionary economics was applied. Having in mind this theoretical background and the problem studied, we opted for a method acknowledgedly institutional with a qualitative approach i.e. an exploratory case study conducting interviews with participants considered as fundamental in the system, submitting afterwards the data collected in field to the secondary data and the theoretical background. The results obtained point to a gradual blooming of the system’s organization, with coordination not subjected to the market action of the sector, by which is understood governance, of Federal and State responsibility. However, until the moment evidences were not found of a governance of the base i.e. the producers. In reference to the relationship of the elements for the system’s emergence, it was verified that this occurs by means of constant information exchange and transactions that occur between the agents and the local economy. The agents and the local economy influence each other reciprocally in a bottom-up dynamics and in the reverse, topdown, when the system reacts to influences and begins to stimulate governance structures and institutional infrastructure. In this perspective, it is understood that the system’s elements that are effectively emerging were characterized, as well as their relation with local economy. It is crucial for the participants that this complex system can be understood and treated as so, with adequate interventions in a way that it can propitiate gains to all parts involved.

Bacterial endosymbionts of eukaryotes are generally studied in terms of their benefit or detriment to their hosts. The constraints that the host's life history imposes on its endosymbionts are rarely considered, although bacterial genome content and size are influenced by both the biotic and abiotic factors in the environment. The host organism is the primary habitat of the endosymbiont. Thus, desecribing the environment a host provides its endosymbiont is essential for understanding the evolution of endosymbiotic bacteria. I propose a system to classify the endosymbiotic environment by three characteristics: 1) host life cycle 2) host metabolism, and 3) endosymbiont location relative to host tissues. Insect-bacterial mutualisms have been classified in terms of endosymbiont environment. The majority of insect-bacterial mutualisms currently studied involve monophagous, hemimetabolous hosts that provide a relatively constant endosymbiotic enviroment. A relatively constant environment may explain the extremely reduced genomes of their endosymbionts. In contrast, polyphagous, holometabolous hosts provide the most variable endosymbiotic environment. In this work, I examined the interactions between the polyphagous, holometabolous insect, Bactrocera oleae (Rossi), and the enteric gammaproteobacterium, Candidatus Erwinia dacicola, throughout host development. Candidatus Erwinia dacicola was found in the digestive system of all life stages of wild olive flies. PCR and microscopy demonstrated that Ca. Erwinia dacicola resided intracellularly in the gastric caeca of the larval midgut, but extracellularly in the lumen of the foregut and ovipositor diverticulum of adult flies. I document the widespread distribution and high frequency of Ca. Er. dacicola in ten populations of wild olive flies sampled in four countries (3 Old World and 1 New World). The relative abundance of the bacterium was highest in adults and less prevalent in the egg and pupal stages. Among adult flies, the bacterium was most common in ovipositing females. These results suggest that Ca. Er. dacicola is a persistent, autochthonous endosymbiont of the olive fly. Finally, mating initiation was examined to study the influence of Ca. Er. dacicola on mating between a laboratory and a wild population of olive flies from Israel. Behavioral differences between the two populations, not presence of the endosymbiont, explained mating initiation.

No description available.

No description available.

L'industrie oléicole joue un rôle socio-économique important pour les pays méditerranéens. Cependant, ce secteur pose également de sérieux problèmes environnementaux dus à la production de grandes quantités de sous-produits pendant de courtes périodes : les grignons d'olive, les margines (effluents liquide) et les margions. En effet, les margines représentent un défi environnemental majeur. Face à cette situation, plusieurs techniques physico-chimique et biologique ont été développées pour répondre à cette problématique. Malgré leur efficacité, ces techniques présentent l’inconvénient d’être chères. L'objectif de ce travail est de contribuer à la gestion et la valorisation à grande échelle des sous-produits oléicoles à travers l’optimisation des paramètres de démarrage du processus, le compostage et le lombricompostage et de mettre au point une méthode simple et efficace de suivi de l’évolution chimique et biologique des composts. Notre étude a porté sur le lombricompostage et le compostage d’un mélange de grignons d’olive, de fumier de cheval et de paille de blé, imbibé avec un ajout de margines à différentes concentrations. Le compost et le vermicompost ont été caractérisés par des paramètres physico-chimiques et biologiques qui ont mis en évidence la minéralisation, l’humification et la stabilisation de la matière organique. Le lombricompostage, combiné au compostage, peut être une technique adaptée et moins couteuse pour le traitement et la valorisation des sous-produits oléicoles comme amendement organique à grande échelle. / The olive industry plays an important socio-economic role for the Mediterranean countries. However, this sector also caused serious environmental problems due to the production of large quantities of by-products for short periods: olive pomace, olive mille wastewater (OMWW) and tow phase olive waste. Indeed, OMWW represent a major environmental challenge because of their chemical composition. Faced with this situation, several physicochemical and biological techniques have been developed to respond to this problem. Despite their effectiveness, these techniques have the disadvantage of being expensive. The objective of this study is to contribute to the management and the large-scale valorization of olive oil by-products through the optimization of the starting parameters of the process; composting and vermicomposting and to develop a simple and effective method for monitoring the chemical and biological evolution of composts. Our study focused on vermicomposting and composting a mixture of olive pomace, horse manure and wheat straw, soaked with the addition of OMWW at different concentrations. Compost and vermicompost were characterized by physicochemical parameters and biological parameters which showed the mineralization, humification and stabilization of organic matter.Vermicomposting, combined with composting, may be a suitable and less expensive technique for the processing and valorization of olive oil by-products as a large-scale organic amendment.

"September 2002" / Bibliography: leaves 142-159. / viii, 159, [17] leaves : ill. (some col.), plates, photograph ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Investigates self- and cross-compatibility using 5 common commercial cultivars of olive. Frantoio is found to b a good general polliniser for the other cultivars. The sex ratio of flowers, pollen viability, and male sterility were also examined Another objective was the construction of a molecular linkage map for olives, using a cross between Frantoio and Kalamata and microsatellite markers using the pseudo-testcross strategy. Approximately 45% of the genome was mapped. / Thesis (Ph.D.)--University of Adelaide, Dept. of Horticulture, Viticulture and Oenology, 2002

Olive Schreiner's fiction is best understood in the context of her colonial situation : she experienced central Victorian spiritual dilemmas and social constrictions, but refracted through a rural colonial culture. A complex position of power and powerlessness, superiority and inferiority, individual assertiveness and self- abnegation, is the crux of her fictional world. Her formative years were spent within a culturally deprived rural environment in a dependent position as servant/governess, yet her reading gave her access to leading Victorian intellectuals who were trying to create a new synthesis out of the conflict between Darwin's revolutionary theory and faith in a God-given and unquestionable order, between science and faith, between a new spirit of 'realistic' enquiry and Christian dogma. The problem for the colonial novelist is similar to that of the provincial novelist : the writer seeking intellectual stimulus and cultural enrichment at the metropolitan centre often has to forego a sense of community, and a youthful emotional bond with a nourishing, indigenous landscape, frequently the original source of a sense of spiritual harmony and an underlying order in the universe itself. The colonial novelist thus expresses a tragic breach between individual and community, and a sense of irreconcilable needs. This process is best exemplified in the careers of women, because the difficulty in finding a suitable partner, and a fulfilling marriage, exemplifies the radical problem of reconciling nature and nurture, instinct and social convention. Solitariness, and death, can become the conditions of integrity. Nevertheless, Schreiner's analysis of social problems becomes more detailed and incisive as she develops, and social reform offers a way out of a doomed conflict. Schreiner's childhood reading of the Bible and her evangelical inheritance were crucial to her life and fiction. In both a spirit of charity and self-sacrifice was central, and contended with a popular Victorian view of Darwinism which saw nature as a struggle for survival, a competition between the 'fittest' in which power would be decisive. Schreiner's visionary optimism about moral and social progress was checked by a sense of natural cruelty, historical repetition and decadence, and the early influence of the doctrine of 'original sin'. Schreiner saw her fiction as having a social mission, but the mission could only be accomplished by a novelist true to her individual vision, and expressing her 'self' by aesthetic means. A novel should grow 'organically' from the artist's individual vision, and thus be analogous to a living and unfolding natural world, developing according to its awn inherent laws. Schreiner understood Art and Nature as complementary orders. Her theory of art is thorough and internally consistent : writing should be simple, sensuous, and passionate, and should reconcile social function and artistic design. The power and directness of colonial art reunited her with the Victorian metropolitan centre, though she experienced Victorian social issues in a particular, intensified form in South Africa. Nevertheless, her reponse to South African landscapes, her sense of its 'will to live' at the same time stimulated her own power of creativity, which would counter the stultifying effects of rural isolation and the social restraints on, and exploitation of uneducated women. Schreiner's spirit of militancy and a reliance on the individual conscience stemmed from her evangelical forebears, though she translated their religious non-conformism into social protest in the South African context. Her family was part of the missionary wing of Imperialism and at the same time part of the current of liberalism and enlightenment which clashed with a conservative slave-owning society in South Africa. Her own fiction expresses the plight of the 'slave' in a sequence of metaphorical transformations. The figures of the child, the young women, the servant, the convict, the slave, the prostitute, the black man and the black women interrelate and modify a simple portrait of victimization. Her fiction also draws on the homiletic tradition of evangelical literature,which used deathbed scenes as the carriers of a moral message. Schreiner's writing displays a characteristically Victorian range of non-fiction and fiction, pamphlets, letters, diaries satires, dream-visions, autobiographical fragments, and ambitious full-Iength novels. Her writing displays the Victorian concern with autobiographical and confessional literature as well as direct political and social intervention in a corrupt society. She shaped her life more and more consciously into a variety of narrative forms, from erotic fantasies and escapist to more outwardly-directed satirical and reformist fiction. Her early experience of homelessness economic and social dependence on strangers, as well as sexual vulnerability to men, was crucial in her formative experience. But here, too, she overcame a tendency toward masochism and narcissistic self-reflection to portray a women whose survival and growth expressed the strong side of Schreiner's vigorous and mature feminism. Schreiner's fictions, from the fragment "Diamond Fields" and the youthful Undine, to the early 'masterpiece' The Story of an African Farm, to the political satire Trooper Peter Halket and the encyclopedic though unfinished From Man to Man, display great narrative fertility, and an ability to modify and develop her own characteristic themes, images, and characters. An early multiplication of female victims gave way to the rich oppositions and multiple different-sex protagonists of African Farm, and the concentration yet divergence of the double-female protagonist situation of From Man to Man. All of her fictions move along a spectrum from protest to vision, realism to dream/allegory, and she inverts - and adapts the proportions in accordance with the aims of each particular work. Her fiction shows variety, creative richness, yet a growing economy of means and artistic control of genre. Her development as a novelist was away from a narcissitic focus on the self as victim towards a commitment to suffering forms of life outside the self. She also displayed a growing commitment to the social analysis of human suffering, and to South Africa as the crucible in which she had been formed, as a landscape which offered her an image of harmony to set against social malfunction, and as the strongest source of her own creativity. / Thesis (Ph.D.)-University of Natal, Durban, 1985.

Presently in South Africa there exists a rising demand for olive oil. Within the context of increased imports, increased distribution and the introduction of different product lines of olive oil by large retailers this exploratory study investigates the consumer profile of olive oil consumers in Durban, KwaZulu Natal. The demographic variables of age, gender, income and educational level amongst Durban consumers were considered. To properly understand the olive oil purchase decisions, the aspects of consumer psychology that were considered included exposure to olive oil, preferences for types of olive oil, perception and memory recall. These psychological aspects were considered in the context of the afore-mentioned socio-demographic variables. A quantitative approach was used in this study. One hundred respondents were interviewed using the mall intercept method. Respondents answered a self-administered questionnaire which consisted of 18 questions that captured the objectives of the study. The generated data was analysed using statistical software and specifically the statistical techniques of cross tabulation and chi-square test of independence. The data attested to the fact that there was indeed a relationship between age, gender, income and educational levels amongst Durban consumers which answered the first research objective. The second research objective involved investigating the reasons for purchase and non-purchase of olive oil amongst Durban consumers. Sixty eight percent of the non-purchasers were reluctant to purchase the olive oil because of pricing issues with thirteen citing supply or availability issues. The most popular reason for purchasing olive oil was because of its health benefits followed by taste. The study also showed that the KZN market felt that insufficient exposure was given to olive oil. The typical olive oil consumer in Durban is likely to be aged between 45 to 54 years old, a female with a tertiary education and an income level between R7429 - R13 787. The study provided the broad parameters of a Durban olive oil consumer as well as his psychological purchase decision factors to enable olive oil marketers to better solidify the existing market whilst penetrating newer markets both within and beyond KwaZulu-Natal. / Thesis (MBA)-University of Natal, Durban, 2003.

Zugl.: Bonn, Univ., Diss.,