863 resultados para mate opportunity
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By providing a wide literature review, post-hurricane Katrina uneven urban regeneration in New Orleans is presented here by framing it within a historical perspective in order to underline how environmental threats too often seem to be not so much “natural” but rather man-made as well as to highlight both the reasons and the ways in which, in post-disaster reconstruction, competitive growth has been valued over equity, by directly benefiting those who were already the most advantaged. The aim is to highlight how environmental disasters can be considered as socially constructed phenomena, as they cannot be seen as a single event but rather as a process made by a series of progressive steps occurring within different spheres, which do not necessarily concern the environment only.
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Jerked beef, an industrial meat product obtained from beef with the addition of sodium chloride and curing salts and subjected to a maturing and drying process is a typical Brazilian product which has been gradually discovered by the consumer. The replacement of synthetic antioxidants by natural substances with antioxidant potential due to possible side effects discovered by lab tests, consumer health, is being implemented by the meat industry. This study aimed to evaluate the lipid oxidation of jerked beef throughout the storage period by replacing the sodium nitrite by natural extracts of propolis and Yerba Mate. For jerked beef processing brisket was used as raw material processed in 6 different formulations: formulation 1 (control - in nature), formulation 2 (sodium nitrite - NO), formulation 3 (Yerba Mate - EM), formulation 4 (propolis extract - PRO), formulation 5 (sodium nitrite + Yerba Mate - MS + NO), formulation 6 (propolis extract + sodium nitrite - PRO + NO). The raw material was subjected to wet salting, dry salting (tombos), drying at 25°C, packaging and storage in BOD 25°C. Samples of each formulation were taken every 7 days for analysis of lipid oxidation by the TBARS method. In all formulations, were carried out analysis of chemical composition at time zero and sixty days of storage. The water activity analysis and color (L *, a *, b *) was monitored at time zero, thirty and sixty days of storage. The Salmonella spp count, Coliform bacteria, Termotolerant coliforms and coagulase positive staphylococci were taken at time zero and sixty days. The activity of natural antioxidants evaluated shows the decline of lipid oxidation up to 2.5 times compared with the product in natura and presented values with no significant differences between treatments NO and EM, confirming the potential in minimize lipid oxidation of Jerked beef throughout the 60 days of storage. The results also showed that yerba mate has a higher antioxidant capacity compared to the propolis except the PRO + NO formulation. When associated with yerba mate with sodium nitrate, TBARS values become close to values obtained only for the control samples with the addition of sodium nitrite. The proximal composition of the formulations remained within the standards required in the IN nº22/2000 for jerked beef. Samples that differ significantly at 5% are directly related to the established type of formulation. The count of microorganisms was within the standards of the DRC nº12/2001 required for matured meat products. The intensity of the red (a*) decreased with storage time and increase the intensity of yellow (b*) indicates a darkening of the product despite L* also have been increased. These results suggest that yerba mate is a good alternative to meat industry in reducing healing addition salts when associated with another antioxidant.
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The report on the findings of extensive empirical research on equality of educational opportunities carried out in the US on a very large sample of public schools by Coleman and his colleagues has had a major impact on education policy and has given rise to a large amount of research and various interpretations. However, as some interpreters have highlighted, even more important than the findings of the survey themselves has been Coleman’s redefinition of equality of opportunity, abandoning the then prevailing conception of equality of educational opportunities as equality of starting points and replacing it with the concept of equality of educational opportunities as equality of educational outcomes. The question is, therefore, whether equality of outcomes really is one of the two types of equality of opportunity. The purpose of the present article is to show that equality of opportunity and equality of outcomes are two different types of equality. If they are different, the interpretation that Coleman has redefined the concept of “equality of educational opportunity” turns out to be incorrect. (DIPF/Orig.)
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Despite vast literatures on interest representation in the United States (US) and the European Union (EU), few studies have tried to compare lobbying across the two cases. Those who do are interested primarily in the existence of different lobbying styles and distinguish between an aggressive pressure group approach in the US and a more consensus oriented informational lobbying in the EU. However, the origins of these differences have received little attention and references most often point to different political “cultures” and lobbying traditions. This paper takes issue with this cultural explanation and links the observed lobbying styles with differences in the design of the political institutions that private actors have to interact with. It argues that divided policy authority in the US allows for interest group bargaining while shared policy competencies in the EU constrain not only policy-makers but also lobbyists to adopt a more consensus-oriented approach. The effect of political institutions on the form of lobbying, in turn, can have important implications for the comparison of different policy areas across countries, because the policy stances of private actors cannot always be assumed to be exogenous to the policy process in which they are active.
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The present paper examines some of the tensions, problems and challenges associated with claims for equality of opportunity (the fairness argument). The introductory part identifies three separate forms of justification for public education, including the argument associated with equality of opportunity. Part II examines in detail two questions that reveal part of the anatomy of equality of opportunity: (1) what an opportunity is, and (2) when individuals’ opportunities are equal. This is followed by a presentation of the two basic principles of equality of opportunity: (1) the principle of non-discrimination, and (2) the “levelling the playing field” principle. The next part takes up the multiculturalist hypothesis advanced by minority groups for the accommodation and recognition of cultural diversity. This is followed by the identification of a set of claims comprising the “fairness argument”. The last section focuses on the “currency problem” associated with cultural diversity as a form of “unfair disadvantage”. Part V examines two of the major shortcomings associated with the multicultural conception of equality of opportunity, while the concluding part discusses some of the questions that must be answered by any conception of equal opportunities. (DIPF/Orig.)
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Al ser un deporte relativamente nuevo, tiene 60 a?os de historia, no se cuenta con la suficiente bibliograf?a para su ense?anza, y mucho menos en las categor?as juveniles, es por eso que se quiere brindar un documento que, a partir de la experiencia en el campo y tomando modelos pedag?gicos de diferentes ?reas que no s?lo incluyen la educaci?n f?sica, con el cual los profesores de educaci?n f?sica y deporte puedan iniciar procesos formativos en menores de 16 a?os. Para llevar a cabo lo anterior, se pretende abordar temas que van m?s all? del entrenamiento deportivo juvenil, con el fin de brindar herramientas que permitan consolidar un grupo de trabajo cooperativo que abarque, desde la convocatoria de los ni?os, el trato y la participaci?n de los padres de familia, la organizaci?n de las sesiones de entrenamiento, hasta la conducci?n de procesos de autorregulaci?n, que incluyen el dialogo y el respeto como herramientas para la soluci?n de conflictos dentro y fuera del entrenamiento. Por lo tanto el presente trabajo de investigaci?n se estructur? en tres cap?tulos fundamentales que son: Capitulo uno hace referencia al planteamiento dial?ctico y epistemol?gico de la investigaci?n en donde se puede apreciar una correcta relaci?n entre el problema y los objetivos. En el cap?tulo dos encontramos una gran variedad de estudios internacionales y nacionales que nos permiten definir las tendencias m?s importantes del ult?mate y a partir de all? se realiza un an?lisis de c?mo han evolucionado en los ?ltimos tiempos el proceso de ense?anza- aprendizaje. Y en el tercer cap?tulo presentamos fase a fase el dise?o y elaboraci?n de la metodolog?a que proponemos para guiar el proceso de ense?anza ? aprendizaje en la muestra objeto de estudio, para finalmente realizar un an?lisis y discusi?n de resultados.
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This thesis identifies and defines the new African sovereignty. It establishes a modern sovereignty in Africa hatched from the changing nature of sovereignty in which countries come together at various levels or grades of partial surrender of national sovereignty in order to work closer together for their mutual advantage and benefit. To this end, the narrative zooms in on the central issues within the realms of money matters whereby a new model of monetary sovereignty and monetary solutions is designed in an attempt to ease the recurring tensions and challenges of modern national sovereignty in the continent of Africa. As such, this discussion will offer a historical journey through the constitution of sovereignty, to the birth of the nation state and international public law. It develops the theory of the changing nature of sovereignty within the modern state and opens new lines of inquiry for Africa. In this regard, it draws from juxtaposing and mixing elements of regional and global financial integration as well as retaining national financial sovereignty features to form this new design which I dub continental sovereignty. At its core, the thesis will deal with the legal aspects that stem from the co-mingling of legal systems of nation states and communities at the regional and global levels within the context of financial integration. The argument is that the rule of law remains sacrosanct in monetary management. Effective financial integration is the result of properly structured and managed legal frameworks with robust laws and institutions whether at a national, regional or global level. However, the thesis reveals that in order to avoid undermining the progress of Africa’s financial integration project, any solution for Africa must be immersed within a broader global solution where development issues are addressed and resolved and Africa can form a more central part in all relevant international discussion fora. The work will expound these issues by applying them within a regional and global context, with the state of affairs in Africa forming the nucleus. This application consequently presents the six key themes of the thesis which will be considered therein. They are: a.) regional advantage: which exploits the possibilities of deeper and further financial integration between smaller communal arrangements; b.) regional risk and exposure: the extent to which this deeper form of financial integration can spiral out of control if effected too quickly and too ambitiously; c.) global advantage: which considers the merits of global financial integration and the influence exerted by financial laws on the global financial architecture; d.) global risk and exposure: which considers the challenges of global financial integration especially within the background of the Global Financial Crisis 2007-2008; e.) African challenge: which considers the extent to which this analysis impacts the African economic and financial integration agenda; and f.) development challenge: which examines the extent to which global development issues impact the African solution (continental sovereignty) and the need for any solution for the continent to be roped into a broader global solution within which Africa can form an important part. Even though the thesis requests an optimistic undertone on the progress made so far, it unearths the African problem of multiple national sovereignty and multiple overlapping regional sovereignty constituted as the ‘spaghetti bowl’ dilemma. As such, the unique contribution to knowledge on financial integration in Africa can be echoed in these words: Africa‘s financial integration agenda has had little success in authenticating a systematic and dependable legal framework for monetary management. Efforts made have been incomplete, substandard, and not carefully followed through particularly reflected in the impuissant nature of the judicial enforcement mechanisms. Thus, the thesis argues that, any meaningful answer to the problems dogging the continent is inter alia deeply entrenched within a new form of cooperative monetary sovereignty. In other words, the thesis does not prescribe the creation of new laws; rather it advocates the effective enforcement of existing laws.
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The benefits obtained from mating are usually condition-dependent, favouring the evolution of flexible investment during copulation, for instance, in terms of invested time, energy, or sperm. Flexible investment strategies are predicted to depend on the likelihood of acquiring alternative mates and therefore they should depend on the timing of mate encounter. However, scarce experimental evidence for this hypothesis exists. Here we manipulated the time delay until first mating and the interval between first and second mating in the polygynandrous common lizard, Zootoca vivipara. We determined treatment effects on fertilisation success and copulation duration, the latter being a proxy for investment in mating and for quantity of transferred sperm. The duration of the second copulation decreased with increasing inter-mating interval and depended on the fertilisation success of first mates. The former provides evidence for time-dependent investment strategies, most likely resulting from the progression of the female's reproductive cycle. Fertilisation success of first mates increased with increasing inter-mating interval and was higher when females were closer to ovulation, showing that flexible investment strategies significantly affected male reproductive success. This points to fertilisation assurance, which may mitigate negative effects of low population density on reproductive success, e.g. Allee effects.
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Description based on: 1978.
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In this paper, the start-up process is split conceptually into four stages: considering entrepreneurship, intending to start a new business in the next 3 years, nascent entrepreneurship and owning-managing a newly established business. We investigate the determinants of all of these jointly, using a multinomial logit model; it allows for the effects of resources and capabilities to vary across these stages. We employ the Global Entrepreneurship Monitor database for the years 2006–2009, containing 8269 usable observations from respondents drawn from the Lower Layer Super Output Areas in the East Midlands (UK) so that individual observations are linked to space. Our results show that the role of education, experience, and availability of ‘entrepreneurial capital’ in the local neighbourhood varies along the different stages of the entrepreneurial process. In the early stages, the negative (opportunity cost) effect of resources endowment dominates, yet it tends to reverse in the advanced stages, where the positive effect of resources becomes stronger.
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Texto relativo ao segundo encontor Perspectivas da investigação e(m) artes: articulações, realizado na Universidade de Évora em dezembro de 2013.
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ABSTRACT The red mite Oligonychus yothersi is one of the main pests of yerba mate in Brazil The damage this mite causes leads to leaf drop and decreased production. There are no registered acaricides for use in yerba mate; thus, laboratory and field experiments were performed to evaluate the effect of azadirachtin (Azamax ® , 250mL 100L -1 ) for the control of the red mite in yerba mate. In the laboratory, azadirachtin was applied to yerba mate leaf disks before (residual contact) and after (direct contact) infestation with 15 newly emerged red mite adult females. The effect of azadirachtin on mite behavior was evaluated in arenas with treated and untreated yerba mate leaves, and the number of mites in both areas was recorded. Ovicidal action was evaluated by applying azadirachtin to eggs and recording egg hatching. In the field, two applications of the product were performed (1L spray liquid plant-1) with a 7-day interval. The numbers of living mites were evaluated at 7, 14 and 21 days following the first application on randomly collected leaves. It was observed 86.6 and 91.4% of mortality following 24h of residual and direct contact, respectively. Repellent (62% of individuals leaving the treated area) and ovicidal (98.9% decrease in egg hatching) effects were also observed. The mite population in the yerba mate crop field had decreased by 59.6% at 14 days after the first application of azadirachtin. The results show the potential of azadirachtin for the control of O. yothersi in yerba mate in Brazil.Key words: neem, alternative control, yerba mate pest. RESUMO O ácaro Oligonychus yothersi é uma das principais pragas da cultura da erva-mate. Seus danos levam à queda das folhas e redução da produção. Não há acaricidas registrados para uso na erva-mate e por isso foram realizados experimentos em laboratório e a campo para avaliar o efeito da azadiractina (Azamax®, 250mL 100L-1), visando ao controle da espécie na cultura da erva mate. Em laboratório, o produto foi aplicado em discos de folha de erva-mate antes (contato residual) e depois (contato direto) da infestação com 15 fêmeas adultas recém-emergidas do ácaro vermelho. A ação do produto no comportamento do ácaro foi avaliada em arenas com folhas de erva-mate tratadas e não tratadas, registrando-se o número de ácaros em ambas as áreas. Além disso, a ação ovicida foi avaliada, aplicando-se o produto sobre ovos e registrando a sua eclosão. No campo, foram realizadas duas aplicações do produto (1L de calda planta-1), espaçadas sete dias. Avaliou-se o número de ácaros vivos, aos 7, 14 e 21 dias após a primeira aplicação, em folhas coletadas aleatoriamente. Observou-se ação acaricida (86,6 e 91,4% de mortalidade após 24h, respectivamente, por contato residual e direto; repelência (62% dos indivíduos abandonando a área tratada) e ação ovicida (redução de 98,9% na eclosão). Na lavoura de erva-mate, a redução populacional do ácaro foi de 59.6% aos 14 dias após a primeira aplicação do produto. Os resultados demonstram o potencial de emprego da azadiractina para o controle de O. yothersi na cultura da erva-mate.Palavra-chave: nim, controle alternativo, praga da erva-mate.
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The bitterness intensity of beverage prepared from the leaves produced on the males and females of yerba mate (Ilex paraguariensis), grown in the forest understory and monoculture, was evaluated. The leaves were grouped by their position (in the crown and on the branch tips) and by the leaf age. The leaf gas exchange, leaf temperature and photosynthetic photon flux density were observed. Inter and intra-specific competition for light and self-shading showed the same effect on yerba mate beverage taste. All the shading types resulted in bitterer taste of the processed yerba mate leaves compared to the leaves originated under the direct sun exposure. The leaves from the plants grown in the monoculture showed less bitterness than those grown in the forest understory. This conclusion was completely opposite to the conventionally accepted paradigm of the yerba mate industries. The leaves from the tips (younger leaves) of the plants grown in the monoculture resulted a beverage of softer taste; the males produced less bitter leaves in any light environment (forest understory or in the crown in monoculture). The taste was related to the photosynthetic and transpiration rate, and leaf temperature. Stronger bitterness of the leaves provided from the shade conditions was related to the decreased leaf temperature and transpiration in the diurnal scale.
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A erva-mate (Ilex paraguariensis) é uma espécie arbórea, nativa da América do Sul e largamente consumida na forma de chá. Em ervais debilitados, a poda de recuperação é utilizada para a retomada do vigor vegetativo, bem como o anelamento, os quais estimulam a emissão de brotações. O presente trabalho teve como objetivos verificar a influência do anelamento em combinação com a aplicação de diferentes concentrações de benzil-amino-purina (BAP) e da decepa em diferentes alturas na emissão de brotações por matrizes de erva-mate de 17 e mais de 80 anos de idade, no inverno/2006 e verão/2007. O anelamento foi realizado com motosserra a uma altura de 30 cm do solo, seguido do tratamento com BAP, veiculado em pasta de vaselina, nas concentrações de 0, 150 e 300 mg Kg-1. A decepa foi realizada também com motosserra, sendo os tratamentos três alturas de corte: 15, 30 e 60 cm do solo. Após 6 e 12 meses da instalação foram avaliadas as seguintes variáveis: porcentagem de matrizes brotadas, número de brotações por árvore (ou cepa), comprimento e diâmetro das brotações. Os resultados obtidos mostram que a erva-mate tem boa capacidade de brotação, para as duas técnicas utilizadas. A eficiência na emissão de novos brotos no anelamento é influenciada pela idade da planta matriz e pela estação do ano. Os maiores valores foram obtidos no inverno/2006 e com matrizes de 17 anos de idade, chegando a 95,84% de indução de brotações. Na técnica da decepa, não foi observada influência da época de instalação na porcentagem de brotação, mas a idade da matriz e a altura do corte foram significativos para esta variável. Os maiores valores foram obtidos com matrizes de 17 anos e altura de corte a 60 cm do solo.