Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Richard Tykva"'
Autor:
Věra Vlasáková, Robert Hanus, Jana Brabcová, Richard Tykva, Bohuslav Černý, Marie Zarevúcka, Zdeněk Wimmer
Publikováno v:
Pesticide Biochemistry and Physiology. 101:103-108
Considering a potential application of selected biochemically activated insect hormonogen substances (juvenogens) against pest termite species, we aimed this study to describe the metabolism of these compounds by termites and soil bacteria and to eva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ce5ff5919a36e177274dce042cc1e32
https://doi.org/10.1016/j.pestbp.2011.08.007
https://doi.org/10.1016/j.pestbp.2011.08.007
Autor:
Richard Tykva, Blanka Bennettová, Bohuslav Černý, Věra Vlasáková, Jan Hlaváček, Jiřina Slaninová, Miloš Buděšínský, Josef Holík
Publikováno v:
Amino Acids. 42:1715-1725
Analogs of the H-Tyr-Asp-Pro-Ala-Pro-OH pentapeptide with D-amino acid residues either in differing or in all of the positions of the sequences were prepared and their oostatic potency was compared with that of the parent pentapeptide. The D-amino ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78e230e6f13a684d950e1f5ce406515b
https://doi.org/10.1007/s00726-011-0882-6
https://doi.org/10.1007/s00726-011-0882-6
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 279:811-816
The present study reports the U(VI) uptake from solution on a Ti-rich Egyptian black sand, showing that the crystal surfaces exhibit a marginal influence to the total process of U(VI) uptake onto Ti-containing micro- and mesoporous silicate materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca136b05fa519792b2b39e998d0376b9
https://doi.org/10.1007/s10967-008-7378-1
https://doi.org/10.1007/s10967-008-7378-1
Publikováno v:
Measurement. 41:1054-1057
A set of partial working procedures has been designed for laboratory modelling and measurement of affecting termite caste differentiation by a juvenogen. The developed measuring system is based on selection of termite individuals by transmission X-ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10f5ad57de575e88b91ce4d1fb1ef72e
https://doi.org/10.1016/j.measurement.2008.02.004
https://doi.org/10.1016/j.measurement.2008.02.004
Autor:
Jaroslav Novák, Richard Tykva, Marie Zarevúcka, Milan Pavlík, Zdenek Wimmer, Klara Hlavsova, Marek Prouza
Publikováno v:
Journal of Agricultural and Food Chemistry. 56:6604-6608
Two bacteria were isolated from sand RQ30, characterized as Bacillus simplex and Bacillus sp. strain 05 (GenBank EU399813 ), and were used as biocatalysts for a hydrolytic assay of stability of the cis or trans isomers of ethyl N-{2-{4-{[2-(butanoyl)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc4adfd88658531a7b885947dac1406b
https://doi.org/10.1021/jf800526a
https://doi.org/10.1021/jf800526a
Publikováno v:
Pest Management Science. 64:654-659
BACKGROUND: Juvenoids and juvenogens have been for many years considered promising candidates for control of pest insect species including termites. Their use as termite pest management agents requires the generation of knowledge concerning their deg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d21a976af92bced75907b41fedb4c73
https://doi.org/10.1002/ps.1532
https://doi.org/10.1002/ps.1532
Publikováno v:
Journal of Environmental Radioactivity. 97:76-82
The uptake of 226Ra from the contaminated soil was compared in three woody species: alder (Alnus glutinosa), birch (Betula pendula) and elder (Sambucus nigra). The 226Ra activities increased during the vegetation periods (in 2003, 2004 and 2005) both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9642f87809e7974ef60d583ab85daf89
https://doi.org/10.1016/j.jenvrad.2007.03.008
https://doi.org/10.1016/j.jenvrad.2007.03.008
Autor:
Petr Soudek, Richard Tykva, Tomáš Vaněk, Martin Vágner, Petr Petřík, Šárka Petrová, Václav Plojhar
Publikováno v:
European Journal of Soil Biology. 43:251-261
A geobotanical study was performed of the wild plants growing in the area of the old uranium mill tailings waste depot of a former uranium ore reprocessing factory in South Bohemia and the distribution of 226 Ra in selected plants was determined. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9dc8b014d57c25c4bcbf83e209b6fde
https://doi.org/10.1016/j.ejsobi.2007.02.008
https://doi.org/10.1016/j.ejsobi.2007.02.008
Publikováno v:
Journal of Microscopy. 226:191-194
Summary A method has been developed for routine laboratory visualisation of small-scale soft tissue by means of transmission X-ray radioscopy and tomography. Using termites as models, imaging quality with a spatial resolution of about 3 μm was achie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f91312a06947e1d77f2e20514feef6c3
https://doi.org/10.1111/j.1365-2818.2007.01778.x
https://doi.org/10.1111/j.1365-2818.2007.01778.x
Autor:
Richard Tykva, Zdenek Vykydal, Carlos Granja, Josef Uher, T. Holy, Jiri Dammer, Jan Jakubek, Stanislav Pospisil, Robert Hanus
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 571:69-72
A tabletop system for digital high resolution and high sensitivity X-ray micro-radiography has been developed for small-animal and soft-tissue imaging. The system is based on a micro-focus X-ray tube and the semiconductor hybrid position sensitive Me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e5bec2e7f88b5d91d1794b9214bb277
https://doi.org/10.1016/j.nima.2006.10.031
https://doi.org/10.1016/j.nima.2006.10.031