Претраживање
Приказ резултата 1641-1650 од 1706
Why should security aspects be more seriously considered in development of Serbian tourism industry? / Zašto bi bezbednosne aspekte trebalo ozbiljnije razmatrati pri razvoju turizma u Srbiji?
(Fakultet za sport Novi Sad, 2016)
Tourism today starts to be a part of everyday life for millions of citizens all over the world. According to the Travel&Tourism Competitiveness Report 2013, security is among the critical factors determining the competitiveness ...
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 ...
Forensics of Features in the Spectra of Biological Signals
(International Society for Bioelectromagnetism, 2010)
Semantics of spectroscopy of biological signals and criteria of semantic stability are the initial issues in this
article. Motivated with some semantic confusion related to our cooperation and elsewhere, we are
investigating ...
Spatiotemporal optical instabilities in nematic solitons
(Optics Express, 2005)
We investigate numerically the propagation of self-trapped optical beams in nematic liquid crystals. Our analysis includes both spatial and temporal behavior. We display the formation of stable solitons in a narrow threshold ...
Light propagation in quasi-periodic Fibonacci waveguide arrays
(Journal of the Optical Society of America B, 2015)
We investigate light propagation along one-dimensional quasi-periodic Fibonacci waveguide array optically induced in Fe:LiNbO3 crystal. Two Fibonacci elements, A and B, are used as a separation between waveguides. We ...
The use of river hopper barges as facilities for aquaculture: The growth characteristics of carp (Cyprinus carpio) depending on stocking density
(Journal of Agricultural Sciences, Belgrade, 2010)
Guided modes in left-handed waveguides
(OPTICS COMMUNICATIONS, 2008)
We investigate basic properties of linear guided modes in a waveguide slab with the core of a material with simultaneously negative effective permittivity and permeability surrounded by a normal dielectric cladding. The ...
Use of sodium oxalate and calcium formate for chemical activation of high volume fly ash (HVFA) binders
(Elsevier Ltd., 2024)
This study investigates hydration mechanism of a high volume fly ash (HVFA) binder, comprising 70 wt.% of fly ash (FA), chemically activated by using sodium oxalate (Na2C2O4) and calcium formate (Ca(HCOO)2). Prior to the ...
Variability of Morpho-Anatomical Characteristics of Different Willow Clones Contaminated with Heavy Metals
(Crojfe, 2024)
In this paper, the variability of morphological (stem height, stem basal diameter, proportion of pith, wood and bark) and wood anatomical characteristics (fiber length, fiber diameter, fiber lumen diamater, double cell-wall ...
PHYTOCHEMICAL INVESTIGATION, ACUTE TOXICITY, ANTIOXIDANT AND ANTIDIABETIC ACTIVITY OF EXTRACTS FROM AERIAL PARTS OF FOUR WILD GROWING ACHILLEA SPECIES
(Romanian society for pharmaceutical sciences, 2023)
Plants from the genus Achillea are rich in biologically active ingredients and are traditionally known for their healing potential.
In this research, the phytochemical profile was investigated, the content of total phenolics ...