Publications by authors named "N Kocic"
Background And Objectives: The aim of the present study was to assess the effect of sociodemographic factors on knowledge, attitudes, motivation and potential barriers of university students towards blood donation in the order to more effective donation promotion.
Design: The cross-sectional study was conducted on 1000 participants (500 non-blood donors-NBD, 276 first time blood donors-FTBD and 224 regular blood donors-RBD) from the 14 faculties of the University of Novi Sad, Serbia. The measurement tool used was a pretested survey questionnaire that included 22 questions focused on the factors influencing blood donation.
Background: The COVID-19 pandemic has major implications on the entire blood supply system worldwide. Seroepidemiological studies are certainly necessary for better understanding the global burden that the COVID-19 pandemic represents.
Objectives: In this study, we analysed the association between demographic factors, COVID-19 severity, vaccination status and the reactivity of anti-SARS-CoV-2 IgG antibodies in Serbian blood donors.
The planar heterocyclic molecules 1,6,7,12-tetraazaperylene on a Ag(111) metal substrate show different charging characteristics depending on their local environment: next to vacancies in self-assembled islands, molecules can be charged by local electric fields, whereas their charge state is fixed otherwise. This enables the activation of selected molecules inside islands by vacancy creation from scanning-probe-based manipulation. This concept allows for combining the precise mutual atomic-scale alignment of molecules by self-assembly, on one hand, and the implementation of specific functionality into otherwise homogeneous monolayers, on the other.
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- The study focused on the activation of specific C-H bonds in two types of dipyridine compounds, 1,3-BPyB and 1,4-BPyB, using various advanced microscopy techniques and theoretical calculations.
- The research found that the arrangement of products differed based on the metal surfaces used, with Cu(111) showing limited configurations due to strong Cu-N bonds.
- Utilizing Fe atoms on Au(111) allowed for the formation of a large-scale network of consistent products, demonstrating potential for controlled synthesis through robust coordination interactions.
The frontier orbital sequence of individual dicyanovinyl-substituted oligothiophene molecules is studied by means of scanning tunneling microscopy. On NaCl/Cu(111), the molecules are neutral, and the two lowest unoccupied molecular states are observed in the expected order of increasing energy. On NaCl/Cu(311), where the molecules are negatively charged, the sequence of two observed molecular orbitals is reversed, such that the one with one more nodal plane appears lower in energy.
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