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    Wyświetlanie 1-11 z 11
    Tytuł:
    Comparative yield efficiencies of methyl bromide substitute fumigants and mulching systems for pepper production in the Southeast
    Efekt substytucji bromku metylu (mb) w fumigacji w siewie bezpośrednim w uprawie pieprzu na południowym wschodzie
    Autorzy:
    Fonsah, E.
    Yu, Y.
    Escalante, C.
    Culpepper, S.
    Deng, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/43546.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
    Opis:
    Methyl Bromide (MB) is one of the most effective and widely used commercial chemicals in agriculture and non-agricultural sectors respectively. The decision to phaseout MB by 2005 set the stage for scientists to come up with a non-less-toxic replacement alternative or combinations thereof. This study focused on comparing yield efficiencies of different MB substitute fumigants and mulching systems for pepper production in the Southeast. Results of this study depicted that pepper production is potentially maximized under the tel-pic-vap treatment which is the only fumigation method that yielded significant differences relative to at least one other alternative approach.
    Bromek metylu (MB) jest jedną z najbardziej skutecznych i powszechnie stosowanych substancji chemicznych w rolnictwie i niektórych sektorach pozarolniczych. Decyzja w sprawie wycofania MB do 2005 roku zainspirowała naukowców do wynalezienia mniej toksycznych alternatyw dla tej substancji. Niniejsze opracowanie koncentruje się na porównywaniu efektywności fumigantów różnych alternatyw MB.
    Źródło:
    Journal of Agribusiness and Rural Development; 2010, 15, 1
    1899-5241
    Pojawia się w:
    Journal of Agribusiness and Rural Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification, evaluation, and application of the genomic-SSR loci in ramie
    Autorzy:
    Luan, M.-B.
    Yang, Z.-M.
    Zhu, J.-J.
    Deng, X.
    Liu, C.-C.
    Wang, X.-F.
    Xu, Y.
    Sun, Z.-M.
    Chen, J.-H.
    Powiązania:
    https://bibliotekanauki.pl/articles/57981.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    To provide a theoretical and practical foundation for ramie genetic analysis, simple sequence repeats (SSRs) were identified in the ramie genome and employed in this study. From the 115 369 sequences of a specific-locus amplified fragment library, a type of reduced representation library obtained by high-throughput sequencing, we identified 4774 sequences containing 5064 SSR motifs. SSRs of ramie included repeat motifs with lengths of 1 to 6 nucleotides, and the abundance of each motif type varied greatly. We found that mononucleotide, dinucleotide, and trinucleotide repeat motifs were the most prevalent (95.91%). A total of 98 distinct motif types were detected in the genomic-SSRs of ramie. Of them, The A/T mononucleotide motif was the most abundant, accounting for 41.45% of motifs, followed by AT/TA, accounting for 20.30%. The number of alleles per locus in 31 polymorphic microsatellite loci ranged from 2 to 7, and observed and expected heterozygosities ranged from 0.04 to 1.00 and 0.04 to 0.83, respectively. Furthermore, molecular identity cards (IDs) of the germplasms were constructed employing the ID Analysis 3.0 software. In the current study, the 26 germplasms of ramie can be distinguished by a combination of five SSR primers including Ibg5-5, Ibg3-210, Ibg1-11, Ibg6-468, and Ibg6-481. The allele polymorphisms produced by all SSR primers were used to analyze genetic relationships among the germplasms. The similarity coefficients ranged from 0.41 to 0.88. We found that these 26 germplasms were clustered into five categories using UPGMA, with poor correlation between germplasm and geographical distribution. Our study is the first large-scale SSR identification from ramie genomic sequences. We have further studied the SSR distribution pattern in the ramie genome, and proposed that it is possible to develop SSR loci from genomic data for population genetics studies, linkage mapping, quantitative trait locus mapping, cultivar fingerprinting, and as genetic diversity studies.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2016, 85, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of luteinizing hormone regulation of maturation and apoptosis, expression of LHR and FSHR in cumulus-oocyte complexes in Lanzhou fat-tailed sheep
    Autorzy:
    Wei, S.C.
    Deng, Y.Y.
    Lai, L.J.
    Liang, H.Q.
    Lin, G.Z.
    Gong, Z.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087862.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    In vitro maturation
    apoptosis
    luteinizing hormone
    cumulus oocyte complexes
    Caspase-3
    receptor
    Źródło:
    Polish Journal of Veterinary Sciences; 2017, 4; 759-768
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synergism of octane phenol polyoxyethylene-10 and oleic acid in apatite flotation
    Autorzy:
    Cheng, R.
    Li, C.
    Liu, X.
    Deng, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/110793.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    octane phenol polyoxyethylene-10
    synergistic effect
    flotation
    apatite
    Opis:
    The addition of octane phenol polyoxyethylene-10 (OP-10) to oleic acid via a reagent-combination technology was carried out and it was shown that OP-10 exhibited synergistic effects in the flotation performance of oleic acid. Single-mineral flotation tests, zeta-potential measurements, total-organic-carbon determination, and scale-up of continuous tests using raw ore were also carried out. Single-mineral flotation tests showed that OP-10 exhibited virtually no collecting performance for apatite, but it improved the flotation performance of oleic acid following its addition to oleic acid in small amounts at low temperature. Zeta-potential measurements and total-organic-carbon determination results indicated that the addition of 2.5% OP-10 to oleic acid increased the absolute value of the apatite surface potential and improved adsorption of oleic acid on the apatite surface at low temperature. A scale-up of the continuous test showed that application of OP-10 with industrial fatty acids led to good synergistic effects and contributed to effective separation of phosphate ore.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2017, 53, 2; 1214-1227
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ag+/S2O8 2– system for the degradation of aqueous flutriafol
    Autorzy:
    Yang, H.
    Zhou, W.
    Yang, L.
    Deng, J.
    Hu, Q.
    Wei, H.
    Au, C.
    Yi, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/207760.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    chemical analysis
    degradation
    free radicals
    metal ions
    molecular orbital
    transition metals
    analiza chemiczna
    degradacja
    wolne rodniki
    jony metali
    orbital molekularny
    metale przejściowe
    Opis:
    The degradation of flutriafol in aqueous persulfate (S2O82–) system in the presence of selected transition metal ions was investigated. In the presence of Ag+ or Fe2+, flutriafol degradation occurs, whereas in the presence of Mn2+, Co2+, Ni2+, Cu2+, Zn2+ and Bi3+ ions, the degradation is less than 15%. The Ag+/ S2O82– aqueous system being the most effective was adopted for experimental and theoretical investigations. It was confirmed that pH of 3.0 is the most suitable, and that both · SO4–and ·OH– radicals are the main active species to afford flutriafol degradation, with the former contributes more than the latter. To elucidate degradation mechanism, molecular orbital calculations were performed and reaction intermediates identified by GC/MS and HPLC/MS/MS analyses. Three degradation pathways are proposed that involve the cleavage of C–N and C–C bonds as a result of ·SO4– attack, as well as the formation of hydroxylated products due to · OH radicals.
    Źródło:
    Environment Protection Engineering; 2018, 44, 2; 57-72
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Different Ignition Responses of Powdery and Bulky 1,3,5-Triamino-2,4,6-trinitrobenzene (TATB) Based Polymer-bonded Explosives under Ultra-high Voltage Electrostatic Discharge
    Autorzy:
    Lyu, Z.
    Long, X.
    Li, Z.
    Dai, X.
    Deng, C.
    He, S.
    Li, M.
    Yao, K.
    Wen, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/358240.pdf
    Data publikacji:
    2018
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    electrostatic spark sensitivity
    ultra-high voltage electrostatic discharge
    thermal effect
    electric field effect
    Opis:
    The electric spark induced ignition mechanism for explosives needs further study. The ignition of powdery and bulky TATB by electrostatic discharge (ESD) was investigated. Up to 200 kV ultra-high voltage ESD was applied to powdery and bulky explosives of two TATB-based polymer-bonded explosives (named PBX-1 and PBX-2). The results showed that the spark sensitivities of powdery and bulky explosives are extremely different for the same formulation. The 50% ignition voltages of powdery PBX-1 and PBX-2 were 10.8 kV and 8.5 kV, respectively, while the values for the bulky samples (tablets) were not less than 200 kV. Both heat and the electric field can be transmitted into the powdery samples, on the other hand only the electric field can be transmitted into the bulk samples. The electric field has a smaller contribution while the heat has a larger contribution to the ignition during an ESD, i.e., the thermal effect plays a main role in the ignition process. Our experimental results are in good agreement with recent results calculated by density functional theory.
    Źródło:
    Central European Journal of Energetic Materials; 2018, 15, 2; 283-298
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification of three species commonly known as“daqingye” by internal leaf anatomy and high-performance liquid chromatography analyses
    Autorzy:
    Zhang, Y.
    Zhu, Y.
    Chen, J.
    Xia, C.
    Deng, J.
    Li, H.
    Li, Y.
    Li, J.
    Liu, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/59301.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    The macroscopic and microscopic morphologies and indigo and indirubin concentration of the traditional Chinese medicine herbs Isatis indigotica Fort., Polygonum tinctorium Ait., and Baphicacanthus cusia (Nees) Bremek, all commonly known as “daqingye”, were determined and compared. The morphological analyses indicated that I. indigotica has leaves with winged petioles and no glandular hairs or crystals, P. tinctorium has leaves with membranous ocrea and clusters of calcium oxalate, and B. cusia has palisade cells in the mesophyll running over the main vein and single cells containing calcium carbonate crystals. Indigo and indirubin are chemical constituents that have been previously isolated from daqingye and were selected in this study as identification markers for high-performance liquid chromatography analysis due to their pharmacological activities. The chromatographic results showed that indigo and indirubin concentration varied significantly among the three species: high concentration of both indigo and indirubin were observed in I. indigotica, the highest concentration among the three daqingye plants was found in P. tinctorium but with low levels of indirubin, and the concentration of indigo and indirubin was quite low in B. cusia. In summary, three different species commonly known as daqingye were accurately distinguished by morphological observation, internal leaf anatomy analysis, and chromatographic analysis.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2018, 87, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Teaching Machines on Snoring : A Benchmark on Computer Audition for Snore Sound Excitation Localisation
    Autorzy:
    Qian, K.
    Janott, C.
    Zhang, Z.
    Deng, J.
    Baird, A.
    Heiser, C.
    Hohenhorst, W.
    Herzog, M.
    Hemmert, W.
    Schuller, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/177964.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    snore sound
    obstructive sleep apnea
    acoustic features
    machine learning
    Opis:
    This paper proposes a comprehensive study on machine listening for localisation of snore sound excitation. Here we investigate the effects of varied frame sizes, and overlap of the analysed audio chunk for extracting low-level descriptors. In addition, we explore the performance of each kind of feature when it is fed into varied classifier models, including support vector machines, k-nearest neighbours, linear discriminant analysis, random forests, extreme learning machines, kernel-based extreme learning machines, multilayer perceptrons, and deep neural networks. Experimental results demonstrate that, wavelet packet transform energy can outperform most other features. A deep neural network trained with subband Energy ratios reaches the highest performance achieving an unweighted average recall of 72.8% from four types for snoring.
    Źródło:
    Archives of Acoustics; 2018, 43, 3; 465-475
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development of a blocking immunoperoxidase monolayer assay for differentiation between pseudorabies virus-infected and vaccinated animals
    Autorzy:
    Wang, Y.B.
    Li, Y.H.
    Li, Q.M.
    Xie, W.T.
    Guo, C.L.
    Guo, J.Q.
    Deng, R.G.
    Zhang, G.P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087396.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    pseudorabies virus variant strains
    anti-pseudorabies virus monoclonal antibody
    blocking immunoperoxidase monolayer assay
    differentiation between pseudorabies virus-infected and vaccinated animals
    Źródło:
    Polish Journal of Veterinary Sciences; 2019, 4; 717-723
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    17 beta-estradiol affects proliferation and apoptosis of canine bone marrow mesenchymal stem cells in vitro
    Autorzy:
    Zhou, Z.-H.
    Gu, C.-W.
    Li, J.
    Huang, X.-Y.
    Deng, J.-Q.
    Shen, L.-H.
    Cao, S.-Z.
    Deng, J.-L.
    Zuo, Z.-C.
    Wang, Y.
    Ma, X.-P.
    Ren, Z.-H.
    Yu, S.-M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087308.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    apoptosis
    bone marrow mesenchymal stem cells (BMSCs)
    canine
    proliferation
    17 beta-estradiol (E2)
    Źródło:
    Polish Journal of Veterinary Sciences; 2020, 23, 2; 235-245
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of the protective efficacy of virus-like particles based on PCV 2b and 2d subtypes against mixed challenge in mice
    Autorzy:
    Yuan, X.M.
    Yuan, Q.C.
    Feng, S.M.
    Deng, Z.B.
    Powiązania:
    https://bibliotekanauki.pl/articles/16539142.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    type 2
    virus-like particles
    vaccine
    mouse
    Opis:
    Porcine circovirus type 2 (PCV2) is an economically important swine pathogen and, although small, it has the highest evolution rate among DNA viruses. Commercial PCV2 commercial vaccines are inactivated PCV2 isolates or a subunit vaccine based on the Cap protein of PCV2. Currently, PCV2 VLPs of individual subtype vaccines are available. Although the main prevalent genotype worldwide is PCV2b, the emerging subtype PCV2d subtype is also increasingly associated with PCV disease. The aim of the study was to evaluate the protective efficacy of VLP based on the PCV2b and 2d subtypes against the mixed challenge of two hypotype PCV2 in mice. Thirty-six female SPV Kunming mice were immunized twice with PCV2b and 2d VLPs, then challenged with PCV2b and PCV2d, to assess the immunogenicity and effectiveness of the VLPs. Vaccination of the mice with PCV2b and 2d VLPs elicited a robust antibody response specific for the PCV2. The virus load detected in the 2b and 2d spleen vaccine group was the lowest compared to other groups. Furthermore, there was no pathological damage in the HE stained sections of the 2b and 2d spleen vaccine, and no virus was detected in the immunohistochemical sections. Our data suggest that the mixed PCV2b and 2d VLP vaccine could protect mice from challenge with the mixed infection of PCV2b and PCV2d.
    Źródło:
    Polish Journal of Veterinary Sciences; 2022, 25, 2; 195-205
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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