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Optimizacija i validacija ICP-OES metode i ciklične voltametrije za određivanje elementnog sastava i antioksidativne aktivnosti odabranih sorti jagodastog voća
(Универзитет у Нишу, Природно-математички факултет, 2022)
Within this doctoral dissertation, the optimization and validation of the ICP-OES method was performed in order to determine the elemental composition of strawberries, blackberries, raspberries and blueberries. The accuracy ...
Ispitivanje interakcije fotoosetljivog nanokompozitnog sistema baziranog na nedopiranim i dopiranim česticama titanijum (IV) oksida s biomolekulima i ćelijama
(Универзитет у Нишу, Природно-математички факултет, 2022)
Nanostructured inorganic compounds such as TiO2 may be used as drug delivery carriers
and photosensitizers (PSs) in light-based therapy – photodynamic therapy (PDT). This
doctoral dissertation explores the implementation ...
Kontaminacija hrane ftalatima usled njihove migracije iz plastične ambalaže
(Универзитет у Нишу, Природно-математички факултет, 30-09-2021)
This dissertation is a part of the research performed within the Grant of the Ministry of Education, Science and Technological Development of the Republic of Serbia TR 31060 “Production of new dietary dairy products for ...
q-Karamatine funkcije i asimptotska svojstva rešenja nelinearnih q-diferencnih jednačina
(Универзитет у Нишу, Природно-математички факултет, 17-12-2021)
The purpose of the doctoral dissertation is to determine the conditions for the existence and to examine in detail the asymptotic properties of solutions of the second order nonlinear q-difference equations, with an ...
Tahionska inflacija u holografskoj kosmologiji
(Универзитет у Нишу, Природно-математички факултет, 16-09-2021)
Theory of inflation is widely accepted as the best approach to the
problems of the Early universe in the standard cosmology. The origin
and nature of the physical field that determines the inflationary
process are not ...
Nastava uvodnog kursa mehanike u srednjoj školi i na fakultetu: iskustva i načini za njeno unapređenje
(Универзитет у Нишу, Природно-математички факултет, 05-02-2021)
Teaching mechanics, in the context of physics education, has its own
particular challenges. The students’ preconceptions, based on their
own experience, are often in conflict with the laws of physics. Considering
students’ ...
Fiksne i najbolje aproksimacije tačke za preslikavanja na metričkim prostorima i uopštenjima
(Универзитет у Нишу, Природно-математички факултет, 21-01-2021)
The theme of this doctoral dissertation are best proximity point and fixed point theorems for operators on metric and generalized metric spaces. From the corresponding best proximity point theorems, it is possible to derive ...
Asymptotic representation of solutions of nonlinear differential and difference equations with regularly varying coefficients
(Универзитет у Нишу, Природно-математички факултет, 19-02-2021)
In this dissertation, differential equations of the fourth order, difference
equation of second order and cyclic systems of difference equations of
second order are considered. In particular, assuming that coefficients ...
Hemijski sastav, antioksidativna i toksična aktivnost odabranih biljnih vrsta roda Artemisia L.
(Универзитет у Нишу, Природно-математички факултет, 2022)
The subject of this research is the analysis of essential oils using GC-MS technique, methanol extracts using HPLC method, as well as multielement composition using ICP OES technique of five species of the genus Artemisia, ...
Mikroplastika u slatkovodnim ekosistemima: in-situ i ex-situ istraživanja na odabranim model organizmima makrobeskičmenjaka
(Универзитет у Нишу, Природно-математички факултет, 2022)
In this doctoral dissertation, the influence of the most common types of microplastic polymers on different levels of biological and ecological organization of benthic macroinvertebrates in freshwater ecosystems is ...