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| Registros recuperados: 16.191 | |
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| Fujii,Simone; Ono,Elisabete Yurie Sataque; Ribeiro,Ricardo Marcelo Reche; Assunção,Fernanda Garcia Algarte; Takabayashi,Cássia Reika; Oliveira,Tereza Cristina Rocha Moreira de; Itano,Eiko Nakagawa; Ueno,Yoshio; Kawamura,Osamu; Hirooka,Elisa Yoko. |
| An indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) for ochratoxin A (OTA) detection in green, roasted and instant coffees was developed using anti-OTA monoclonal antibody. Immunological reagents prepared were OTA-BSA (4.76 mg/mL), anti-OTA.7 MAb (2x10³-fold dilution) and HRP-anti IgG (10³-fold dilution). The detection limit was 3.73 ng OTA/g and correlation coefficients (r) between this immunoassay and high performance liquid chromatography were 0.98 for green coffee, 0.98 for roasted and 0.86 for instant. OTA levels detected by ic-ELISA were higher than by HPLC, with ELISA/HPLC ratio of 0.66 - 1.46 (green coffee), 0.96 - 1.11 (roasted) and 0.93 - 1.82 (instant). ELISA recoveries for OTA added to coffee (5 - 70 ng/g) were 81.53 % for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ochratoxin; Immunoassay; HPLC; Monoclonal antibody; Coffee. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000200020 |
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| Loomis, John B.; Asmus, Cheryl; Bell, Paul. |
| The objective of this research was to estimate adults' willingness to pay to reduce health risks to their or other families's infants, the latter to test for altruism. A choice experiment was conducted by having adults pay for bottled water for infants to reduce infants' exposure to nitrates in drinking water. Since nitrates only affect infants' health, we have isolated the adults' willingness to pay just for infants' health by buying bottled water to avoid infants' nitrate intake. Respondents were separated into two treatments, one with hypothetical choices, and the other where respondents were told that one of their four choices would be binding, and they would actually buy bottled water using money given to them at the beginning of the experiment.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Altruism; Conjoint; Drinking water; Validity; Willingness to pay; Health Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/9358 |
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| Berlin, Christina; Erikson, Ljusk Ola. |
| The forest owner cooperatives in Sweden were established almost a century ago with the aim to improve the private forest owners’ bargaining situation and improve silviculture (the study, cultivation, and management of forest trees). The characteristics of today’s private forest owners and forest industry are changing, something which should encourage the forest owner cooperatives to consider adaptations of their organizations. The aims of this paper are, first, to describe characteristics of forest owner cooperative members and second, to probe the applicability of farm cooperative research in this venture. The statements that are tested are based on characteristics established in farm cooperative research and refer to (i) a negative relation between... |
| Tipo: Journal Article |
Palavras-chave: Private forest owners; Cooperative theory; Statistical analysis; Member’s age; Property size; Transaction; Agribusiness. |
| Ano: 2007 |
URL: http://purl.umn.edu/46580 |
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| Ahmed, Syud Amer; Preckel, Paul V.. |
| Since the first half of the 20th century, the input-output (IO) table has been the backbone of much empirical work used to support policy analysis and develop economy-wide models. The need for accurate, up-to-date IO tables is thus essential for establishing the validity of the empirical work that follows from them. However, the construction of an IO table for any given country is an expensive and time-consuming endeavor. Current and accurate IO tables for many countries are thus often difficult to obtain on a regular basis. Once an initial IO table has been constructed, a common workaround is to collect partial information for subsequent periods, such as final demands for commodities within the economy, and then employ a Bayesian parameter estimation... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2007 |
URL: http://purl.umn.edu/9847 |
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| Fragoso,Rui Manuel Sousa; Marques,Carlos. |
| A Nova Reforma da Política Agrícola Comum (PAC) aprovada em 2003 constitui um reforço dos principais objectivos das reformas anteriores de 1992 e de 2000, como a promoção da competitividade do sector agrícola, da multifuncionalidade dos espaços rurais e agrícolas e da exploração sustentável dos recursos. No essencial, substituem-se as ajudas diretas à produção previstas na maioria dos regulamentos das Organizações Comuns de Mercado, por um regime de pagamento único por exploração sujeito a normas de eco-condicionalidade e a limitações na reconversão dos sistemas de produção agrícola. Este artigo avalia os impactos da nova PAC na competitividade do regadio em Portugal nas explorações agrícolas do Alentejo, nomeadamente, dos efeitos do pagamento único na... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nova PAC; Programação matemática; Alentejo. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032007000100003 |
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| Truylio,Betânia; Harter-Marques,Birgit. |
| A comunidade de abelhas (Hymenoptera, Apoidea) foi estudada no Parque Estadual do Itapuã, município de Viamão, no que diz respeito à diversidade, abundância relativa e atividade sazonal. As abelhas foram coletadas sobre as flores em duas áreas florestais, durante dois dias consecutivos por área, quinzenalmente, das 8 h às 18 h. No total, foram capturadas 3.306 abelhas pertencentes a 95 espécies das cinco famílias ocorrentes no Brasil. Dentre elas, Apidae foi a família mais abundante (2.860 indivíduos) e mais diversificada (36 espécies), seguida de Halictidae com 308 indivíduos e 26 espécies. Comparações realizadas com a fauna de abelhas de outras comunidades revelaram uma baixa diversidade na região estudada. Representantes de Apidae e Halictidae foram... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abelhas; Fenologia; Riqueza. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000400006 |
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| Masuku, Micah B.; Kirsten, Johann F.; Owen, R.. |
| This study examines the nature of the relationship between cane growers and millers and how it affects cane growers perceptions of the value added in the sugar supply chain. Drawing from relational exchange theory, the study utilised the perceptions of 124 smallholder cane growers in the Swaziland sugar industry. Factors measured in terms of a likert type scale were used to measure each relational construct within the miller-grower contract relationship. The unpacks the trust relationship between large agribusiness companies and smallholder out growers, and shows that relationships characterised by social factors like trust, commitment, and cooperation enhance mutual benefit and quality relationships between parties. This study found that farmers perceive... |
| Tipo: Journal Article |
Palavras-chave: Agribusiness. |
| Ano: 2007 |
URL: http://purl.umn.edu/10132 |
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| Markusen, Ann. |
| Export base theory, which posits that overall regional growth is a function of external sales of locally produced goods and services, dominates economic development practice. But the consumption base can also serve as a growth driver, especially in small towns and rural areas. Local investments may induce residents to divert expenditures into local purchases, attract new and footloose residents and tourists, and revitalize aging town centers. A consumption base approach is not reducible to import substitution, but seeks to serve latent demand and alter the broad portfolio of goods and services purchased locally. I present the analytics for a consumption base theory and demonstrate how cultural investments prompt regional growth, emphasizing the role of... |
| Tipo: Journal Article |
Palavras-chave: Economic base; Consumption; Cultural investments; Community/Rural/Urban Development. |
| Ano: 2007 |
URL: http://purl.umn.edu/10164 |
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| Drogue, Sophie; Bartova, Lubica. |
| Applied trade analysis and modeling would not be possible without databases. Over the last few years, a considerable effort has been devoted to put together and harmonize a huge amount of data. This has lead to the construction of large-scale datasets on trade (imports and exports in volume and value terms). In parallel, increasing attention has been devoted to measuring tariffs and other trade barriers. These efforts are still under way. It is only recently that large-scale models, for example, have taken into account the lower tariffs applied under preferential agreements (the former generation of models only considered the "bound" tariffs that act as a ceiling in many countries). The changes resulting from the introduction of better data on tariffs have... |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Relations/Trade. |
| Ano: 2007 |
URL: http://purl.umn.edu/7287 |
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| Elífio-Esposito,S. L.; Hess,P. L.; Moreno,A. N.; Lopes-Ferreira,M.; Ricart,C. A. O.; Souza,M. V.; Hasselman-Zielinski,F.; Becker,J. A.; Pereira,L. F.. |
| Purification of a lectin from Bothrops jararacussu venom (BjcuL) was carried out using agarose-D-galactose affinity gel. MALDI-TOF gave a major signal at m/z 32028, suggesting the presence of a dimmer composed of two identical subunits. Divalent cations were required for the lectin activity, as complete absence of such ions reduced hemagglutination. BjcuL was more effective at neutral pH and showed total loss of activity at pH values below 4.0 and above 9.0. Its agglutinating activity remained stable at 25°C until 60min, but increased when at 35°C for at least 15min. Adhesion assays to extracellular matrix (ECM) glycoproteins showed that the biotinylated lectin (0.039-5.0µg/100µl) was capable of binding to fibronectin and vitronectin in a dose-dependent... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Venoms; Fibronectins; Vitronectin; Snakes; Intravital microscopy; Leukocytes. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000400009 |
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| NAKASU, B. H.; HERTER, F. G.; CAMELATTO, D.; REISSER JUNIOR, C.; FORTES, J. F.; CASTRO, L. A. S. de; RASEIRA, A.; FREIRE, C. J. da S.; BASSO, C.; FAORO, I.; PETRI, J. L.; LEITE, G. B.; PEREIRA, J. F. M.; FLORES CANTILLANO, R. F.; VERÍSSIMO, V.; SIMÕES, F.. |
| Introdução; Clima; Cultivares; Polinização; Solo, Calagem; Adubação; Plantio; Poda e condução; Quebra de dormência; Irrigação; Pragas; Doenças; Colheita; Comercialiação; Anexo. |
| Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E) |
Palavras-chave: Colheita; Comercialização; Doença; Variedade; Plantio. |
| Ano: 2007 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/106076 |
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| Registros recuperados: 16.191 | |
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