139 research outputs found
Mercado nacional de informação digital agroeconômica
O estudo analisa o mercado nacional de informação digital agroeconômica. No lado da oferta, o referencial teórico utilizado é o da Economia da Informação, enquanto o da demanda é baseado em um modelo de maximização de lucro que considera a informação um insumo. Empiricamente, avaliaram-se os sites com conteúdo agroeconômico brasileiro, e a estimativa da função de consumo foi feita com dados obtidos de questionários aplicados aos agentes do agronegócio entre outubro de 2002 a janeiro de 2003. A conclusão geral foi que as empresas de informação, para se manterem viáveis na internet, precisam ampliar a receita e o número de assinantes. Elas pouco aproveitam a tecnologia da internet para praticar arranjos mais criativos de discriminação de preços. Os resultados das estimativas de demanda indicam que os agentes ligados ao agribusiness consomem mais informação digital que os produtores. Além disso, a escolaridade apresenta-se como uma barreira para o acesso a esta tecnologia.The objective is to analyze the market for Brazilian digital agricultural economic information. The theoretical analysis of the supply is through the Economics of Information and the demand is through a model that the information is considered an input to maximization the profit. Data were collected through the list of sites of Brazilian internet service providers to analyze the supply side. On the demand side, data were collected through the application of a questionnaire with the endusers of internet between October of 2002 and January of 2003. The general conclusion is that the private companies to remain in the internet need to increase receipts and the number of subscribers. They take little advantages of this technology to practice creative arrangements of price discrimination. Estimates of the consumption functions indicate that the nonfarm agribusiness consumes more digital information than the farmers. The level of education presents a restriction to access to this technology
Integrative Review of Non-Financial Indicators Resulting from Social Innovation in Productive Chains
In the literature there is no consensus on the definition of social innovation, its dimensions and causal relationships. The development of indicators becomes complex because the empirical research activity confronts concepts that differ paradoxically from metrics. This work contributes to discussion by offering an integrative review of non-financial indicators applied to productive chains with the objective of measuring social innovation activities, at the level of their links. The method used in the research was the integrative review in the periodicals Web of Science and Crossref databases, from June 2017 to June 2018. The main findings are that the models analyzed promote the organizational level as the appropriate level to measure social innovation activities. Despite these limitations, this work contributes to the field of measuring social innovation in three areas: (a) modeling a system (b) offering a mapping of organizational competencies and (c) based on this mapping, the model contributes to the Conception of specific incentives for the development of organizational competencies for the promotion of social innovations. The need to conceptually and empirically test the model in different socioeconomic environments to stabilize a social innovation monitor was observed
Public Research Institutions and Their Connections with Patents of Companies in Technological and Regional Development
The interaction between companies and universities is a central theme in discussions on technology transfer. In Brazil, there is an urgent need to raise awareness of the importance of this cooperative relationship for local and regional development. In this sense, it is observed that the innovation process is strategic so that an institution is strengthened and can fulfill its social mission in economic and regional development. Piauí, according to the IBGE census, has a population estimate of 3,273,227 in 2019. Piaui\u27s per capita income is R$ 817.00 and ranks 24th in Brazil in this regard. With these data, the need arises to intervene scientifically in this reality. The objective of this study is to investigate the partnership relationships between companies and public research institutions in Piauí, in the development and transfer of technologies. Research Institutions are the main promoters of technological development in the state, however, for these technologies to reach productive arrangements, strategic alignment in the management of these technologies is necessary. Documentary research was used, with a quantitative approach. In the exploratory search, INPI\u27s databases (National Institute of Industrial Property) and of Espacenet ( European Patent Office ) was used. We sought to select the companies with relevant economic representativeness in the state scenario and investigated the patent information. In the analysis of the data obtained, the Competitiveness Ranking of the CLP States (Public Leadership) was used to compare Piauí with well positioned states. According to the results found, it is observed that the transfer of technology between research institutions and companies is not evident. However, we can see that there are partnership initiatives with small companies in conducting research that can project a change in this scenario. The low number of patents and public/private partnerships in driving innovation in the state of Piauí, may be related to the low index evidenced by the Competitiveness Ranking of States - CLP
Effects of Resistance Training on Oxidative Stress Markers and Muscle Damage in Spinal Cord Injured Rats
Background: Spinal cord injury (SCI) is a condition that affects the central nervous system, is characterized by motor and sensory impairments, and impacts individuals’ lives. The objective of this study was to evaluate the effects of resistance training on oxidative stress and muscle damage in spinal cord injured rats. Methodology: Forty Wistar rats were selected and divided equally into five groups: Healthy Control (CON), Sham (SHAM) SCI Untrained group (SCI-U), SCI Trained group (SCI- T), SCI Active Trained group (SCI- AT). Animals in the trained groups were submitted to an incomplete SCI at T9. Thereafter, they performed a protocol of resistance training for four weeks. Results: Significant differences in muscle damage markers and oxidative stress in the trained groups, mainly in SCI- AT, were found. On the other hand, SCI- U group presented higher levels of oxidative stress and biomarkers of LDH and AST. Conclusion: The results highlight that resistance training promoted a decrease in oxidative stress and a significative response in muscle damage markers.
Keywords:
spinal cord injury; resistance training; oxidative stress; muscle damag
Sporulation of Pyrenochaeta terrestris (Hansen) Gorenz, Walker e Larson its pathogenicity to onion (Allium cepa L.) in association with F. oxysporum F. SP. Cepae (Hanazawa) Snyder and Hansen and the effect of soil solarization against both pathogens
Os fungos Pyrenochaeta terrestris (Hansen) Gorenz, Walker e Fusarium oxysporum F. SP. Cepae (Hanazawa) Snyder e Hansen são responsáveis respectivamente, pelas doenças raiz rosada e podridão basal em cebola (Allium cepa L.). Neste trabalho foi feita uma caracterização morto-fisiológica de P. terrestris ressaltando-se aspectos ligados a capacidade de esporulação que geralmente é alterada ou perdida após algumas repicagens. Foram ainda realizados testes de patogenicidade com os dois fungos verificada a possibilidade de uso de solarização do solo para controle dos mesmos. Não foi verificada interação estatisticamente significativa entre isolados de P. terrestris e os cultivares Baia Periforme e Texas Grano 502 de cebola. O isolado PC7 testado em seis cultivares provocou uma taxa de sanidade mais reduzida no cultivar Norte 14, embora a maior redução de peso de plantas e raízes tenha ocorrido no cultivar Texas Grano 502. Os cultivares Baia Periforme, Texas Grano 502. Creoule, Norte 14, Jubileu e Pira Ouro não mostraram diferenças entre si, quando inoculados com F. oxysporum F. SP. Cepae em relação a peso fresco de plantas e de raízes. Em relação a inoculação com os dois fungos em conjunto ou, separadamente, nos cultivares Texas Grano 502 e Jubileu, não se verificou diferenças entre as médias de tratamento quando considerados peso fresco de plantas e de raízes e alturaPyrenochaeta terrestris (Hansen) Gorenz, Walker and Larson, and Fusarium oxysporum F. SP. Cepae (Hanazawa) Snyder and Hansen are the causal agents of pink root disease and basal root of onion (Allium cepa L.), respectively. Morphological and physiological characterization of P. terrestris was performed, with emphasis to its sporulation capacity, which is generally altered or lost after some transfers. Pathogenicity tests were carried out for both fungi, as well as the use of soil solarization for their control. There was no statistically significant interaction between P. terrestris isolates and the onion cultivars Bia Periforme and Texas Grano, with respect to pathogenicity. Isolate PC7 tested against 6 cultivars provoked the lowest sanity rate in cultivar Norte 14, although the greatest plant and root weight reduction occurred in cultivar Texas Grano 502. Cultivars Bia Periforme, Texas Grano 502, Creoule, Norte 14, Jubileu and Pira Ouro did not show differences among themselves when they were inoculated with F. oxysporum F. SP. Cepae, with respect to be an robot freshweights. There were no differences in plant and root fresh weights and height, for cultivars Texas Grano and Jubileu, inoculated with both fungi together or separatel
Sporulation of Pyrenochaeta terrestris (Hansen) Gorenz, Walker e Larson its pathogenicity to onion (Allium cepa L.) in association with F. oxysporum F. SP. Cepae (Hanazawa) Snyder and Hansen and the effect of soil solarization against both pathogens
Os fungos Pyrenochaeta terrestris (Hansen) Gorenz, Walker e Fusarium oxysporum F. SP. Cepae (Hanazawa) Snyder e Hansen são responsáveis respectivamente, pelas doenças raiz rosada e podridão basal em cebola (Allium cepa L.). Neste trabalho foi feita uma caracterização morto-fisiológica de P. terrestris ressaltando-se aspectos ligados a capacidade de esporulação que geralmente é alterada ou perdida após algumas repicagens. Foram ainda realizados testes de patogenicidade com os dois fungos verificada a possibilidade de uso de solarização do solo para controle dos mesmos. Não foi verificada interação estatisticamente significativa entre isolados de P. terrestris e os cultivares Baia Periforme e Texas Grano 502 de cebola. O isolado PC7 testado em seis cultivares provocou uma taxa de sanidade mais reduzida no cultivar Norte 14, embora a maior redução de peso de plantas e raízes tenha ocorrido no cultivar Texas Grano 502. Os cultivares Baia Periforme, Texas Grano 502. Creoule, Norte 14, Jubileu e Pira Ouro não mostraram diferenças entre si, quando inoculados com F. oxysporum F. SP. Cepae em relação a peso fresco de plantas e de raízes. Em relação a inoculação com os dois fungos em conjunto ou, separadamente, nos cultivares Texas Grano 502 e Jubileu, não se verificou diferenças entre as médias de tratamento quando considerados peso fresco de plantas e de raízes e alturaPyrenochaeta terrestris (Hansen) Gorenz, Walker and Larson, and Fusarium oxysporum F. SP. Cepae (Hanazawa) Snyder and Hansen are the causal agents of pink root disease and basal root of onion (Allium cepa L.), respectively. Morphological and physiological characterization of P. terrestris was performed, with emphasis to its sporulation capacity, which is generally altered or lost after some transfers. Pathogenicity tests were carried out for both fungi, as well as the use of soil solarization for their control. There was no statistically significant interaction between P. terrestris isolates and the onion cultivars Bia Periforme and Texas Grano, with respect to pathogenicity. Isolate PC7 tested against 6 cultivars provoked the lowest sanity rate in cultivar Norte 14, although the greatest plant and root weight reduction occurred in cultivar Texas Grano 502. Cultivars Bia Periforme, Texas Grano 502, Creoule, Norte 14, Jubileu and Pira Ouro did not show differences among themselves when they were inoculated with F. oxysporum F. SP. Cepae, with respect to be an robot freshweights. There were no differences in plant and root fresh weights and height, for cultivars Texas Grano and Jubileu, inoculated with both fungi together or separatel
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Utilizando-se uma linhagem do fungo entomopatogênico Nomuraea rileyi (Farlow) Samson, isolado de Anticarsia gemmatalis Huebner obtida no Município de Londrina, Estado do Paraná, foi desenvolvida uma técnica eficiente para obtenção de conídios do mesmo. A técnica consta na colocação de fragmentos de micélio em tubo com meio líquido e após sete dias transferir todo o conteúdo do tubo para meio solido o que produz uma esporulação abundante e rápida. Foi também ensaiado o desenvolvimento do fungo em diferentes meios sólidos constatando-se que o melhor meio foi o Sabouraud-Maltose-Ágar mesmo sem adição de extrato de levedura. A germinação de conídios em diferentes meios líquidos mostrou que o meio completo foi o mais eficiente e verificou-se também que a germinação de conídios e desenvolvimento de colônias em meio sólido são influenciadas por pré-tratamento em meio líquido com diferentes concentrações salinas. Uma melhor caracterização dos conídios da linhagem estudada revelou que os mesmos tem diâmetro maior que variam de 3,04 a 5,04 µm e diâmetro menor variando de 1,89 a 3,15 µm. Uma grande maioria deles (98,8%) é uninucleada e os núcleos tem diâmetros que variam de 1,16 a 1,78 µm. Estes dados aliados ao fato de que a linhagem cresce em meio mínimo e é bastante sensível á luz ultravioleta tornam-na favorável para futuros estudos genéticos na espécie.A strain of the entomopathogenic fungus Nomuraea rileyi (Farlow) Samson isolated from Anticarsia gemmatalis Huebner in Londrina, State of Paraná, Brazi l ,was used in order to develop a technique for the production of conidia. The Technique consists in the development of mycelium fragments in test tubes containing liquid medium. After seven days incubation the test tube contents were transferred to solid medium. A rapid and abundant sporulation was obtained in this way. From different solid media tested the one which produced best results was Sabouraud-Maltose-Ágar even with no yeast extract added. The best liquid media for germination of spores was complete medium. Also, conidia germination and development of the colony on solid medium were influenced by pretreatmentin diferente salt concentrations. The conidia of the strain used have a size variable from 3.04 to 5.04 µm in lenght and 1.89 to 3.15 µm in width. 98.8% of the conidia were unicleated and presented nuclei which diameter varied from 1.16 to 1.78 µm. These data and the fact that the studied strain can grow on minimal medium and its conidia are quite sensitive to ultraviolet light make it very useful for future genetic studies
TRABALHO E INOVAÇÃO: OFICINA DE GERAÇÃO DE RENDA / Work and innovation: workshop for income generation
Este estudo apresenta uma contextualização do trabalho e aborda as experiências de inovação, junto a um empreendimento de economia solidária denominado de Oficina de Geração de Renda (OGR), que atende a trabalhadores usuários do Departamento de Saúde Mental e dos Centros de Atenção Psicossocial (CAPS) da Fundação de Saúde Pública de Novo Hamburgo. Considerando as oscilações acirradas no mercado econômico, o desafio é mostrar como as redes de cooperação de incubadoras promovem o resgate social. Metodologicamente a pesquisa desenvolveu-se com uma análise qualitativa, sendo que os delineamentos descritivos são resultados de ferramentas estratégicas e transformadoras que representam soluções para a inclusão social. Assim, pode-se afirmar que a busca do real sentido do trabalho e da inclusão, junto aos pacientes com transtornos mentais, reconstrói e reformula fronteiras revelando novos saberes aos trabalhadores
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