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Wyszukujesz frazę "Novikov, K." wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Konflikty terytorialne na świecie
Autorzy:
Suchmanski, M.
Parygin, A.
Novikov, K.
Adamova, J.
Urban, K.
Černikov, Igor Fedorovič.
Powiązania:
Forum 2004, nr 1 →
Data publikacji:
2004
Tematy:
Konflikty zbrojne od 1945 r.
Polityka międzynarodowa 9-19 w.
Opis:
Cz. 1:; Oddawać, co moje!; [Europa, Azja]. --- Fot., mapki; nr 1; s. 14-19.
Cz. 2 :; Puszka Pandory 2004; od Arktyki do Afryki. --- Fot.; nr 2; s. 30-35.
Cz. 3:; Puszka Pandory; gorąco na końcu świata; [Ameryka, Australia i Oceania]. --- Fot.; nr 3; s. 14-19.
Tł. art. zamieszcz. w "Kommersant Vlast". --- 2003.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Negative Poissons ratio and percolating structures
Autorzy:
Wojciechowski, K. W.
Novikov, V. V.
Powiązania:
https://bibliotekanauki.pl/articles/1964096.pdf
Data publikacji:
2001
Wydawca:
Politechnika Gdańska
Tematy:
auxetics
polymers
elastic properties
percolation
percolating structures
Poisson ratio
renormalization group
Opis:
Elastic properties of non-uniform, two-component systems are studied in frames of a model of percolation on a simple cubic lattice. It is shown that as the ratio of the bulk moduli of the components tends to zero, kappa =K/sub s//K/sub h/ to 0 (where s,h denote the softer and harder phase, respectively), the Poisson's ratio of the system tends to 0.2 at the percolation threshold of the harder phase, no matter what the values are of the Poisson's ratios of the components. A qualitatively new, collective mechanism leading to negative Poisson's ratio is suggested.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2001, 5, 1; 5-11
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Deformation and Chemical Composition on Elementary Free Volumes in Glassy Polymers
Autorzy:
Shantarovich, V. P.
Novikov, Yu. A.
Suptel, Z. K.
Oleinik, E. F.
Boyce, M. C.
Powiązania:
https://bibliotekanauki.pl/articles/2008185.pdf
Data publikacji:
1999-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Bj
Opis:
A relation between positronium annihilation characteristics and concentration of elementary free volumes is considered for the case of positronium formation before its localization. We estimated the diffusion coefficient of nonlocalized positronium (≈10$\text{}^{-4}$ cm$\text{}^{2}$/s). The positron annihilation lifetime studies of uniaxial compression and annealing of some glassy polymers revealed variations of the shape of elementary free volumes size-distributions.
Źródło:
Acta Physica Polonica A; 1999, 95, 4; 659-662
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A breakthrough in the efficiency of contact DNA insecticides: rapid high mortality rates in the sap-sucking insects Dynaspidiotus britannicus Comstock and Unaspis euonymi Newstead
Autorzy:
Gal`chinsky, N.
Useinov, R.
Yatskova, E.
Laikova, K.
Novikov, I.
Gorlov, M.
Trikoz, N.
Sharmagiy, A.
Plugatar, Y.
Oberemok, V.
Powiązania:
https://bibliotekanauki.pl/articles/2082776.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
antisense oligonucleotides
DNA insecticides
insect pest control
sap-sucking
insects
28S ribosomal RNA
Opis:
In this short communication describing experiments carried out on the larvae of two insects, Unaspis euonymi Comstock (feeding on Euonymus japonicus Thunb.) and Dynaspidiotus britannicus Newstead (feeding on Laurus nobilis L.), we evaluate for the first time the efficiency of using DNA insecticides in the control of sap-sucking insects, including armored scale insects. Over a period of 10 days, high insect mortality was detected in both U. euonymi and D. britannicus, accompanied by a significant decrease in the concentration of target RNAs. At the same time, no visible changes were observed when the leaves of the host plants were subjected to treatment with DNA insecticides for one month. The results show the high efficiency of DNA insecticides used against hemipteran insect pests. It is noteworthy that the high efficiency of DNA insecticides and their low cost in comparison with RNA preparations provides a safe and extremely promising potential vehicle for the control of sap-sucking insects.
Źródło:
Journal of Plant Protection Research; 2020, 60, 2; 220-223
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Insecticidal activity of three 10–12 nucleotides long antisense sequences from 5.8S ribosomal RNA gene of gypsy moth Lymantria dispar L. against its larvae
Autorzy:
Oberemok, V.V.
Laikova, K.V.
Useinov, R.Z.
Gal`chinsky, N.V.
Novikov, I.A.
Yurchenko, K.A.
Volkov, M.E.
Gorlov, M.V.
Brailko, V.A.
Plugatar
Powiązania:
https://bibliotekanauki.pl/articles/2084849.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
antisense oligonucleotides
DNA insecticides
gypsy moth
insect pest control
Lymantria dispar
5.8S ribosomal RNA
Opis:
5.8S ribosomal RNA plays an important role in protein synthesis and eukaryotic ribosome translocation. Contact DNA insecticides based on antisense fragments of 5.8S ribosomal RNA gene of gypsy moth Lymantria dispar L. showed prospective insecticidal activity on its larvae. The most pronounced insecticidal effect was found for antisense fragments 10 and 11 nucleotides long (oligoRIBO-10 and oligoRIBO-11), whereas 12 nucleotides long fragment (oligoRIBO-12) caused the lowest level of insect mortality. This data corresponds to results obtained earlier using rabbit reticulocyte and wheat germ extracts, where maximum inhibition of protein synthesis was observed when a relevant oligomer 10-11 nucleotides long was used, whilst longer chain lengths resulted in reduced inhibition. Using oligoRIBO-11 fragment we have shown penetration of antisense oligonucleotides to insect cells through insects’ exoskeletons. MALDI technique registered the penetration of the oligoRIBO-11 fragment into insect cells after 30 min and a significant response of insect cells to the applied oligonucleotide after 60 min, which indicates not only that the oligonucleotide enters the insect cells, but also the synthesis of new substances in response to the applied DNA fragment. Contact DNA insecticides developed from the L. dispar 5.8S ribosomal RNA gene provide a novel biotechnology for plant protection using unmodified antisense oligonucleotides.
Źródło:
Journal of Plant Protection Research; 2019, 59, 4; 561-564
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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