76 research outputs found

    Видавничі функції Науково-консультаційної ради Народного комісаріату земельних справ УСРР

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    У статті висвітлено видавничі функції Науково-консультаційної ради НКЗС УСРР (1927-1930 рр.), а саме, коротко розглянуті наукові видання, де друкувалися матеріали учених та організаторів сільськогосподарської науки того часу.В статье рассмотрены издательские функции Научно-консультационного совета НКНД УССР (1927-1930 гг.), а именно, коротко представлены научные издания, где печатались материалы ученых и организаторов сельскохозяйственного опытного дела того времени.The publishing functions of Scientific consultative council of the Public commissariat of agriculture of USSR in 1927–1930 are considered in the article, namely, briefly presented scientific journals, where printed materials scientists and organizers of agricultural experimental work at the time

    Effect of a congested match schedule on immune-endocrine responses, technical performance, and session-RPE in elite youth soccer players

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    This study investigated the effects of a congested match schedule (7 matches played in 7 days) on steroid hormone concentrations, mucosal immunity, session rating of perceived exertion (S-RPE) and technical performance in 16 elite youth soccer players (14.8 ± 0.4 yr; 170.6 ± 9.4 cm; 64.9 ± 7 kg). No change was observed for salivary cortisol concentration across multiple matches (p=0.33; Effect size [ES]=0.13-0.48). In contrast, there was a decrease in salivary testosterone and IgA concentrations (SIgA) from the 1st compared to the last time-point (p=0.01 and 0.001, ES=0.42 and 0.67, respectively). The SIgA concentration varied across time points (p 0.05). A higher number of tackles and interceptions were observed during the 4th match vs. 1st and 7th matches (p<0.001; ES=2.25 and 1.90, respectively). The present data demonstrate that accumulated fatigue related to participation in a congested match schedule might induce a decrease in testosterone concentration in youth players’ and negatively affect their mucosal immunity and capacity to perform certain technical actions

    Serviços de georreferenciamento e levantamento do uso da terra dos imóveis rurais da Embrapa: especificações técnicas dos produtos esperados.

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    Especificações técnicas para a elaboração do banco de dados espacializados das unidades da Embrapa; Layers do BD espacial; Recomendações na vetorização/edição de feições; Uso e cobertura da terra; Restrições legais de uso; Regras para APPs; Regras para Reserva Legal (RL); Definição de APP e Reserva Legal no SIG.bitstream/item/31788/1/Doc211.pd

    Biodegradation of textile azo dyes by a facultative Staphylococcus arlettae strain VN-11 using a sequential microaerophilic/aerobic process

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    A facultative Staphylococcus arlettae bacterium, isolated from an activated sludge process in a textile industry, was able to successfully decolourize four different azo dyes under microaerophilic conditions (decolourization percentage >97%). Further aeration of the decolourized effluent was performed to promote oxidation of the degradation products. The degradation products were characterized by FT-IR and UV–vis techniques and their toxicity with respect to Daphnia magna was measured. The amine concentrations as well as the total organic carbon (TOC) levels were monitored during the biodegradation process. The presence of aromatic amine in the microaerophilic stage and its absence in the aerobic stage indicated the presence of azoreductase activity and an oxidative biodegradation process, respectively. TOC reduction was ∼15% in the microaerophilic stage and ∼70% in the aerobic stage. The results provided evidence that, using a single Staphylococcus arlettae strain in the same bioreactor, the sequential microaerophilic/aerobic stages were able to form aromatic amines by reductive break-down of the azo bond and to oxidize them into non-toxic metabolites.The authors would like to thank the Portuguese Foundation of Science and Technology (FCT) for providing the grant to Andrea Zille (SFRH/BPD/24238/2005), and the Brazilian Foundation for the Coordination of the Improvement of University Graduates of the Ministry of Education (CAPES) and the National Research Counsel (CNPq) for providing the grants to Elisangela Franciscon
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