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Wyświetlanie 1-15 z 49
Tytuł:
The interaction between PDE and graphs in multiscale modeling
Autorzy:
Morales, F. A.
Alvares, S.N.
Powiązania:
https://bibliotekanauki.pl/articles/254867.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
coupled PDE systems
mixed formulations
porous media
analytic graph theory
complex networks
Opis:
In this article an upscaling model is presented for complex networks with highly clustered regions exchanging/trading quantities of interest at both, microscale and macroscale level. Such an intricate system is approximated by a partitioned open map in R2 or R3. The behavior of the quantities is modeled as flowing in the map constructed and thus it is subject to be described using partial differential equations. We follow this approach using the Darcy Porous Media, saturated fluid flow model in mixed variational formulation.
Źródło:
Opuscula Mathematica; 2017, 37, 2; 327-345
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effectivity of ring-precipitation test with the BIEM antigen in pig trichinellosis
Efektywność testu precypitacji pierścieniowej (RPT) przy użyciu BIEM w rozpoznawaniu włośnicy świń
Ehffektivnost' reakcii kol'ceprecipitacii s antigenom BIEhM pri trikhinelleza svinejj
Autorzy:
Bessonov, A.S.
Garkavi, B.L.
Belozerow, S.N.
Powiązania:
https://bibliotekanauki.pl/articles/2176289.pdf
Data publikacji:
1974
Wydawca:
Polskie Towarzystwo Parazytologiczne
Źródło:
Wiadomości Parazytologiczne; 1974, 20, 1; 95-100
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Australasian muricid gastropod Lepsiella as Pleistocene visitor to southernmost South America
Autorzy:
Gordillo, S.
Nielsen, S.N.
Powiązania:
https://bibliotekanauki.pl/articles/22559.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:
Six shells belonging to a muricid gastropod species were recovered from a Pleistocene marine raised beach located on Navarino Island, in southern South America. None of the living species in the Beagle Channel or in the area is close, and none of the fossil species in the vicinity regions shows the diagnostic characters of the Navarino Pleistocene fossils. Our material resembles Lepsiella baileyana from southern Australia, although some differences in the suture and in the spire outline are recognized. Haustrinae were previously confined geographically to New Zealand and to the temperate coast of Australia, now extending its range of distribution to southern South America. This finding of Lepsiella ukika sp. nov. is best explained on the basis of transoceanic migration from Australasia by means of the Antarctic Circumpolar Current perhaps during a Quaternary glacial period. The presence of this Pleistocene visitor in southern South America is important because it clearly demonstrates that transcontinental traverse of taxa with direct (non−planktonic) development might have happened by rafting on kelp that served as transport platforms.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systemic protection against pearl millet downy mildew disease induced by cell wall glucan elicitors from Trichoderma hamatum UOM 13
Autorzy:
Lavanya, S.N.
Niranjan-Raj, S.
Nayaka, S.C.
Amruthesh, K.N.
Powiązania:
https://bibliotekanauki.pl/articles/65379.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
plant protection
systemic protection
pearl millet
downy mildew
plant disease
cell wall glucan
elicitor
Trichoderma hamatum
defense protein
Opis:
The obligate oomycete Sclerospora graminicola (Sacc.) Schroet, is the incitant of downy mildew disease, which is the main constraint in pearl millet production worldwide. Different elicitors from Trichoderma hamatum UOM 13, e.g. mycelial extract and cell wall glucans, were assessed for their resistance elicitation efficiency and the possible underlying mechanisms. Both mycelial extract and cell wall glucans of T. hamatum UOM 13 positively influenced seed quality parameters of pearl millet, significantly enhanced seed germination and seedling vigor in comparison to the untreated control. Seed priming with cell wall glucan elicitors of T. hamatum UOM 13 suppressed downy mildew on susceptible pearl millet seedlings under greenhouse conditions by induction of systemic host resistance. Of the different elicitor delivery methods tested, transplant root dip was more effective than seed treatment and foliar spray. A combination of transplant root dip + seed treatment + foliar spray was significantly more effective than the single delivery methods. The induced resistance corresponded to up regulation of genes of important defense proteins upon pathogen inoculation. Transcripts of genes of defense enzymes glucanase, phenylalanine ammonia lyase, peroxidase and polyphenoloxidase were significantly increased due to the T. hamatum UOM elicitor effect. Expression of hydroxyproline-rich glycoprotein genes, known to play an important role in cell wall cross-linking, were also up regulated in response to T. hamatum UOM cell wall glucan treatment. This study emphasizes the role of T. hamatum UOM as a potential elicitor of downy mildew resistance in pearl millet and presents novel insights into the involvement of important defense proteins mediating such as resistance trigger.
Źródło:
Journal of Plant Protection Research; 2017, 57, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survey of indoor air pollution and health symptoms at residential buildings
Autorzy:
Sarkar, S.
Nandy, A.
Talapatra, S.N.
Basu, R.
Mukhopadhyay, A.
Powiązania:
https://bibliotekanauki.pl/articles/11531.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
indoor air
air pollution
air pollutant
household product
human health
hazard symptom
residential building
Opis:
This survey work summarizes the generation of indoor air pollutants (IAPs) through household products and activities and also the probable health symptoms of IAPs were discussed through questionnaire in the residential buildings of urban and semi urban area when compared to rural (control) area by door to door survey. The IAPs are categorized as physical, chemical and biological and surveyed as per the product(s) usage in the closed room of buildings. The survey results of IAPs generated from household products and activities, these are asbestos, fine particulate matters and ash as physical pollutants. The chemical pollutants are carbon mono and di oxide gases, phthalates; DDT, chlordane, heptachlor, o-phenylphenol; PBDEs, Formaldehyde, Other Aldehydes, lead, benzene, chloroform, para-dichlorobenzene, methylene chloride, perchloroethylene, styrene, benzene, formaldehyde, terpenes, styrene, phthalate esters, toluene, Propellant, pesticides, PAH, NOx, acrylamide, VOCs, acetone, HCl gas and biological pollutants are bacteria, fungi, viruses, house dust mites, animal dander; cockroaches, microbial spore. In respect to established health impact data, the health symptoms were recorded after survey in two areas viz. urban and semi urban area. The health symptoms were recorded as eye, nose, and throat irritation; allergic reactions, respiratory irritation, aggravated asthma, influenza and other infectious diseases may be the generation of IAPs. The urban and semi urban area are compared with rural (control) area in which no symptoms were found as per discussion. In the present survey it was concluded that the generation of IAPs may from household products and activities in the urban and semi urban area due to less ventilation facilities when compared to rural (control) area. This is a preliminary observation, further researches are needed in relation to measurement of physical, chemical and biological indoor pollutants in closed room of residential buildings and also health hazards study of residents by haematological, biochemical, enzymological and genotoxicological parameters.
Źródło:
International Letters of Natural Sciences; 2014, 08, 1
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some physical properties and cracking energy of conophor nuts at different moisture content
Autorzy:
Asoegwu, S.N.
Powiązania:
https://bibliotekanauki.pl/articles/25016.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
physical property
Tetracarpidium conophorum
conophor nut
nut
physical measurement
moisture content
kernel
cracking energy
Źródło:
International Agrophysics; 1995, 09, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some mechanical properties of plantain fruit
Autorzy:
Asoegwu, S.N.
Nwandikom, G.I.
Nwammuo, O.P.
Powiązania:
https://bibliotekanauki.pl/articles/24410.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
plantain
deformation
Musa paradisiaca
rupture parameter
mechanical property
fruit
Źródło:
International Agrophysics; 1998, 12, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
QSAR modeling for acute toxicity prediction in rat by common painkiller drugs
Autorzy:
Roy, J.S.
Gupta, K.
Talapatra, S.N.
Powiązania:
https://bibliotekanauki.pl/articles/11550.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
Painkiller drugs or analgesics are potent pain reliever chemical agents, which are commonly used in pain therapy. Mathematical modeling by QSAR (quantitative structure activity relationship) methods are well known practices to determine predictive toxicity in biota. Now-adays, an easy screening of chemicals, QSAR can be done by using several recommended softwares. The present study was carried out by using software namely T.E.S.T. (Toxicity estimation software tool) for rat oral LD50 (median lethal dose) predictive toxicity for common painkiller drugs. These painkiller drugs were selected as 35 compounds and tabulated on the basis characteristics of one non-narcotic viz. acetaminophen, twenty non-steroidal anti-inflammatory such as bromofenac, diclofenac, diflunsial, etodolac, fenoprofen, flurbiprofen, ibuprofen, indomethacin, ketoprofen, ketorolac, maclofenamate sodium, mefenamic acid, meloxicam, nabumetone, naproxen, oxaprozin, phenylbutazone, piroxicam, sulindac and tolmetin as well as fourteen narcotic viz. buprenorphine, butorphanol, codeine, hydrocodone, hydromorphone, levorphanol, meperidine, methadone, morphine, nalbuphine, oxycodone, pentazocine, dextropropoxyphene and tapentadol. The data were tabulated on experimental (bioassay) from ChemIDPlus and T.E.S.T. and predictive toxicity of 30 compounds out of 35 compounds by using T.E.S.T. The predictive data were found by T.E.S.T. that 20 and 10 compounds were very toxic and moderately toxic respectively but not extremely, super toxic and non-toxic in rat model after acute oral exposure. It is suggested to evaluate the predicted data further with other available recommended softwares with different test models like daphnia, fish etc. to know aquatic toxicity when these compounds may discharge into waterbodies.
Źródło:
International Letters of Natural Sciences; 2016, 52
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propagation in vitro of Alstroemeria ligtu hybrid through direct organogenesis from leaf base
Autorzy:
Nasri, F.
Mortazavi, S.N.
Ghaderi, N.
Javadi, T.
Powiązania:
https://bibliotekanauki.pl/articles/2135.pdf
Data publikacji:
2013
Wydawca:
Instytut Ogrodnictwa
Tematy:
Alstroemeria
seedling
leaf
direct organogenesis
micropropagation
shoot regeneration
rhizome
growth regulator
propagation
cytokinin
auxin
in vitro propagation
Źródło:
Journal of Horticultural Research; 2013, 21, 2
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obtaining of metallic nanoparticles by plasma-erosion electrical discharges in liquid mediums for biological application
Uzyskiwanie nanocząstek metali poprzez wyładowania elektryczne w zakresie erozji plazmy w środowisku wodnym w zastosowaniach biologicznych
Autorzy:
Lopatko, K.G.
Melnichuk, M.D.
Aftandilyants, Y.G.
Gonchar, E.N.
Boretskij, V.F.
Veklich, A.N.
Zakharchenko, S.N.
Tugay, T.I.
Tugay, A.V.
Trach, V.V.
Powiązania:
https://bibliotekanauki.pl/articles/56253.pdf
Data publikacji:
2013
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
metallic nanoparticle
nanoparticle
biological function
plasma
electrical discharge
liquid medium
biological application
Opis:
Obtaining of metallic nanoparticles by plasma-erosion electrical discharges in liquid mediums for biological application. The process of electrical discharge in the water of the plasma discharge channel was investigated and its diagnostics was performed. The specific features of the energy redistribution were shown, together with the physical model of the dispersed phase. The biological functionality of the metal nanoparticles and the prospects for their use in biotechnology were found.
Uzyskiwanie nanocząstek metali poprzez wyładowania elektryczne w zakresie erozji plazmy w środowisku wodnym w zastosowaniach biologicznych. Przeprowadzono badania wyładowań elektrycznych w środowisku wodnym w celu uzyskania nanocząstek metali. Określono specyficzne cechy redystrybucji energii oraz przedstawiono fizyczny model fazy rozproszonej. Określono funkcjonalność biologiczną nanocząsteczek metali oraz perspektywy ich wykorzystania w biotechnologii.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Agriculture; 2013, 61 Agric.Forest Eng.
0208-5712
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Agriculture
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical Analysis of the Problem of Flow Past a Cylindrical Body Applying the R-Functions Method and The Galerkin Method
Autorzy:
Lamtyugova, S.N.
Sidorov, M. V.
Powiązania:
https://bibliotekanauki.pl/articles/410652.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
viscous incompressible fluid
flow problem
R-functions method
Galerkin method
Opis:
The article considers the stationary problem of viscous incompressible fluid flow past a cylindrical body. For solving the problem it is proposed a numerical method, based on the joint use of R-functions method and the Galerkin method. The computational experiment has been conducted for the task of flow past square cylinder for different Reynolds numbers.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2014, 3, 3; 43-50
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 49

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