Zobrazeno 1 - 10
of 187
pro vyhledávání: '"S. Petkova"'
Publikováno v:
Biologia Plantarum, Vol 55, Iss 3, Pp 581-585 (2011)
Desiccation of Xerophyta scabrida caused considerable damage of chloroplast ultrastructure together with a complete loss of chlorophyll. Upon rehydration, the relative water content of the pale-green leaves almost reached that of the dark-green ones,
Externí odkaz:
https://doaj.org/article/c957d9059be54925b085279ba36e486c
Autor:
A. Simeonova, S. Petkova
Publikováno v:
Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, Vol 15, Iss 1, Pp 224-230 (2007)
Adsorption properties of three different marine algae (Ulva rigida (green algae); Cystoseira barbata (brown algae) and Cystoseira crinita (brown algae)) were investigated. They were collected from the Black Sea coastal area in Varna region, Bulgaria.
Externí odkaz:
https://doaj.org/article/f396b7b0e2fd4ea1a71e17c37189fcdc
Publikováno v:
Plant, Soil and Environment, Vol 51, Iss 2, Pp 87-93 (2005)
Investigations were carried out with maize (Zea mays L.) seedlings. The effect of chlorsulfuron (CHF) on the electrophoretic profiles of the total and thermostable proteins, polypeptides and some antioxidant enzymes was compared to the effect of absc
Externí odkaz:
https://doaj.org/article/c2c061fc1ae6404c828faa6457a0dc48
Autor:
Assena H. Stoimenova, Bogdan J. Kirilov, Stanislav R. Gueorguiev, Elina S. Petkova-Gueorguieva, Sava G. Ognianov
Publikováno v:
Folia Medica, Vol 62, Iss 1, Pp 165-171 (2020)
Background: The manufacture of medicinal products for human use in the European Economic Area is governed by European Directives and Regulations stipulating the relevant principles and guidelines of Good Manufacturing Practice, describing the minimum
Externí odkaz:
https://doaj.org/article/753dd7d206c64685a098428b8ed0b482
Autor:
Borislav D. Kitov, Hristo B. Jelyazkov, Aneta S. Petkova, Ivo Kehayov, Atanas Davarski, Borislav Kalnev, Tanya Kitova
Publikováno v:
Хирургия позвоночника, Vol 14, Iss 4, Pp 103-109 (2017)
Objective. To present the clinical course and outcomes of surgical treatment in patients with spinal epidural abscesses. Material and Methods. Sixteen patients (7 males and 9 females) with clinical, neuroimaging and/or histological evidence of spina
Externí odkaz:
https://doaj.org/article/792978cdfef24fc39524b64db13e05e3
Publikováno v:
Helminthologia. 59:217-225
Summary The Nurse cell of the parasitic nematode Trichinella spiralis is a unique structure established after genetic, morphological and functional modification of a small portion of invaded skeletal muscle fiber. Even if the newly developed cytoplas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::843817667e998d67990fcdd6891c3d2c
https://doi.org/10.2478/helm-2022-0027
https://doi.org/10.2478/helm-2022-0027
Akademický článek
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Autor:
Stanislava E. Todorova, Rusi I. Rusew, Zhanina S. Petkova, Boris L. Shivachev, Rositsa P. Nikolova, Vanya B. Kurteva
Publikováno v:
New Journal of Chemistry. 46:1080-1086
A series of acylpyrazolones possessing a methylene bridged heterocyclic unit in the acyl fragment are synthesized and characterized in solution and the solid state.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93455c38ce60ee55c6e802017e9a88da
https://doi.org/10.1039/d1nj05458a
https://doi.org/10.1039/d1nj05458a
Autor:
Magdelena S. Petkova, Zuberu B. Elabor, Trayana Djarova-Daniels, Emilia G. Pavlova, Olufemi B. Omole
Publikováno v:
South African Journal of Science, Vol 114, Iss 7/8 (2018)
The female condom is the only current method for female partners to simultaneously prevent both pregnancy and sexually transmitted infections. Studies of various contraceptive methods suggest that providers’ acceptance and endorsement may be a key
Externí odkaz:
https://doaj.org/article/42097bc9a68a4dbfb975894fdfb57dd2
Publikováno v:
Ecologia Balkanica, Vol 12, Iss 2, Pp 65-75 (2020)
During the period 2011-2013, the impact of some factors on the productivity of natural grassland under the conditions of mineral and organic foliar fertilization was studied in the Central Balkan Mountain region. The summarized multifactor analysis s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::3c0e451e527358f57e7e98d48804f99b
http://web.uni-plovdiv.bg/mollov/EB/2020_vol12_iss2/065-075_eb.20138.pdf
http://web.uni-plovdiv.bg/mollov/EB/2020_vol12_iss2/065-075_eb.20138.pdf