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Приказ резултата 931-939 од 939
Elliptical vortex necklaces in Mathieu lattices
(Physical Review A, 2018)
We demonstrate unusual kinds of discrete vortex beams, elliptical necklaces, realized by Mathieu photonic lattices. Varying the order of the Mathieu lattices and their ellipticity, we can control the shape and size of such ...
Stanje i pravci razvoja materijalno-tehničkih aspekata sredine za učenje/nastavu hemije u beogradskim osnovnim školama
(Beograd : Savez pedagoških društava Jugoslavije, 2013)
Теоријска разматрања и емпиријска истраживања указују да је средина за учење/наставу важан фактор за реализацију наставе високог квалитета. Параметри за уређење средине за учење/наставу хемије у Републици Србији стандардизовани ...
UV-irradiation provokes generation of superoxide on cell wall polygalacturonic acid
(Wiley, Hoboken, 2013)
We examined the redox effects of UV irradiation on cell wall isolates from Pisum sativum leaves, and polygalacturonic and galacturonic acid, in the presence of hydrogen peroxide. For this purpose, electron paramagnetic ...
Optical properties and plasmon – Two different phonons coupling in ZnGeAs2 + Mn
(Journal of Alloys and Compounds, 2013)
Optical properties of p-type Zn1−xMnxGeAs2 for 0 ⩽ x ⩽ 0.078 were investigated by Raman spectroscopy at room temperature. Phonons of ZnGeAs2 are experimentally determined and they are in excellent agreement with those ...
Florističke karakteristike šarplaninskog grebena Kobilica
(Завод за заштиту природе Србије, 2018)
Кобилица је шарпланински гребен на
крајњем југу Србије, преко кога води међународна
граница са Бившом Југословенском Републиком
Македонијом. Централнобалкански положај, рефугијални карактер и разноврсни услови средине
и ...
The possibility of using river hopper barges as aquaculture facilities
(Čačak : Faculty of Agronomy, 2010)
Unravelling migration connectivity reveals unsustainable hunting of the declining ortolan bunting
(American Association for the Advancement of Science [Society Publisher], 2019)
In France, illegal hunting of the endangered ortolan bunting Emberiza hortulana has been defended for the sake
of tradition and gastronomy. Hunters argued that ortolan buntings trapped in southwest France originate ...
Changes in antioxidative enzymes activities during Tacitus bellus direct shoot organogenesis
(Acad Sciences Czech Republic, Inst Experimental Botany, Praha 6, 2012)
Changes in antioxidative enzymes activities during Tacitus bellus direct shoot organogenesis from leaf explants were examined. During the early stages of shoot organogenesis there was a decrease in superoxide dismutase ...
Silene noctiflora L., present in the flora of Kosovo and Metohija (Serbia)
(Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš, Serbia, 2016)
The genus Silene (family Caryophyllaceae) comprises more than 700 species and it is one of the larger genera
of the World’s flora. Studying the flora of the plain part of Kosovo and Metohija, in the village of Gračanica,
on ...