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Wyszukujesz frazę "Cunha, M." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Definition of main pollen season using logistic model
    Autorzy:
    Ribeiro, H
    Cunha, M.
    Abreu, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/50716.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    Portugal
    statistical analysis
    pollen concentration
    pollen season
    airborne pollen
    logistic regression
    Porto Region
    pollen emission model
    main pollen season
    Opis:
    This paper proposes a method to unify the defi nition of the main pollen season based on statistical analysis. For this, an aerobiological study was carried out in Porto region (Portugal), from 2003-2005 using a 7-day Hirst-type volumetric spore trap. To defi ne the main pollen season, a non-linear logistic regression model was fi tted to the values of the accumulated sum of the daily airborne pollen concentration from several allergological species. An important feature of this method is that the main pollen season will be characterized by the model parameters calculated. These parameters are identifi able aspects of the fl owering phenology, and determine not only the beginning and end of the main pollen season, but are also infl uenced by the meteorological conditions. The results obtained with the proposed methodology were also compared with two of the most used percentage methods. The logistic model fi tted well with the sum of accumulated pollen. The explained variance was always higher than 97%, and the exponential part of the predicted curve was well adjusted to the time when higher atmospheric pollen concentration was sampled. The comparison between the different methods tested showed large divergence in the duration and end dates of the main pollen season of the studied species.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2007, 14, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of Insect-Based Food Acceptance by Representatives of Polish Consumers in the Context of Natural Resources Processing Retardation
    Autorzy:
    Kostecka, J.
    Konieczna, K.
    Cunha, L. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/123115.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    insect-based food
    acceptance
    survey
    retardation
    Opis:
    Food production, based on intensive farming, contributes to high and constantly increasing pollution of soils and other environmental resources. Given this, search for non-conventional sources of animal protein seems justified. The present study was designed to examine opinions of selected Polish consumers related to their acceptance of insect-based food as an alternative source of nutrients. The assessment of attitudes towards alternative sources of nutrients was based on the survey developed at the Faculty of Science, University of Porto in Portugal. Representatives of Polish consumers in the region of Podkarpackie generally did not show open-mindedness towards incorporating insect-based food into their diet. Majority of the respondents, however, recognized the importance of food sector operation based on respect for natural resources. Therefore, it seems important that consumers be informed about the advantages of production or use of insect biomass originating from natural ecosystems. This may contribute to increased acceptance for alternative sources of protein, which consequently may lead to reduced environmental pressure of traditional livestock farming and to retardation of ecosystems transformation and loss of biological diversity.
    Źródło:
    Journal of Ecological Engineering; 2017, 18, 2; 166-174
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Muscle torque of healthy individuals and individuals with spastic hemiparesis after passive static streching
    Autorzy:
    Freitas, S. T. T.
    Abreu, E. M. C.
    Reis, M. C.
    Cunha, B. S.
    Prianti, T. S. M.
    Lima, F. P.
    Lima, M. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/306898.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    mięśnie
    siła mięśni
    rozciąganie
    muscle hypertonia
    muscle strength
    passive stretching
    Opis:
    Spasticity is one of the main causes of contracture, muscle weakness and subsequent functional incapacity. The passive static stretching can be included as having the purpose of increasing musculoskeletal flexibility, however, it also can influence the muscle torque. The objective is to verify the immediate effect of passive static stretching in the muscle strength of healthy and those who present spastic hemiparesis. There were assessed 20 subjects, 10 spastic hemiparetic (EG) and 10 healthy individuals (CG), including both sexes, aged between 22 and 78 years. The torque of extensor muscles of the knee was analyzed using isokinetic dynamometer. Results have shown that EG has less muscle torque compared to CG ( p < 0.01). In addition, EG presented a decrease in significance of muscle torque after stretching ( p < 0.05), however, it has not shown significant alteration in muscle torque of CG after performing the program that was prescribed. Immediately after the passive stretch, a significant torque decrease can be seen in hypertonic muscle; it is believed that this reduction may be associated with the physiological overlap between actin and myosin filaments and so preventing the muscle to develop a maximum contraction.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2016, 18, 1; 35-39
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selectivity of diphenyl-ether herbicide with postemergence applications in chickpea
    Autorzy:
    Silva, L.G.B.
    Da Silva Araujo, L.
    Goncalves, D.J.
    Souza Valente, M.
    Da Silva, A.R.
    Nascimento, W.M.
    Ribeiro da Cunha, P.C.
    Powiązania:
    https://bibliotekanauki.pl/articles/2084719.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Cicer arietinum
    diphenyl-ether herbicides
    weeds
    Opis:
    There are few reports in literature about the selectivity of postemergence application of herbicides for the control of eudicotyledon weeds (broadleaf) in chickpea. For this reason, the aim of this study was to investigate the selectivity of diphenyl-ether herbicides in chickpea influenced by the herbicides and application rates. A field experiment was conducted from February to June 2017 in Urutaí, state of Goiás, Brazil. Cultivar BRS Aleppo was used in the experiment. The experiment was set up in a randomized block design with 2 × 3 + 1 factorial arrangement and three replications. The first factor was herbicides (fomesafen and lactofen) with the second factor being herbicide rate (50, 75, and 100% of referenced rate) plus an untreated check as a comparison. The applied rates of herbicides were 250 and 180 g ⋅ ha–1 of fomesafen and lactofen, respectively. The selectivity of herbicides was evaluated according to agronomic characteristics (plant population, height, dry matter, number of pods per plant and 100-grain weight) and yields. Both herbicides, regardless of dosage, were selective in chickpea cultivation, even exhibiting leaf necrosis symptoms with visible injuries below 20% with no effect on yield.
    Źródło:
    Journal of Plant Protection Research; 2019, 59, 3; 350-354
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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