49 research outputs found
Vulnerability to natural disasters in Serbia: spatial and temporal comparison
The frequency of natural disasters and the extent of their consequences at a
global level are constantly increasing. This trend is partially caused by increased population vulnerability, which implies the degree of population vulnerability due to high magnitude natural processes. This paper presents an analysis of vulnerability to natural disaster in Serbia in the second half of the twentieth and the early twenty-first century. Vulnerability changes were traced on the basis of demographic–economic indicators derived from statistical data for local government units (municipalities) provided by the Statistical Office of the Republic of Serbia. Calculations were performed in the geographical information system environment. The results of the study show that spatial and temporal vulnerability variations are causally correlated with changes in the selected
components. Significant rise of vulnerability is related to urban areas, while lower values are characteristic for other areas of Serbia; this is primarily a consequence of different population density
Obtenção e caracterização de farinha de casca de uva e sua utilização em snack extrusado
A global overview on the diet of the dice snake (Natrix tessellata) from a geographical perspective: foraging in atypical habitats and feeding spectrum widening helps colonisation and survival under suboptimal conditions for a piscivorous snake
Implications of serial measurements of natriuretic peptides in heart failure: insights from BIOSTAT‐CHF
No abstract available
Foregut caustic injuries: results of the world society of emergency surgery consensus conference
Antioxidant and Antimicrobial Activity of Polyphenol Extracts from Wild Berry Fruits Grown in Southeast Serbia
Purpose: To assess the antioxidant and antimicrobial activities of
polyphenolic extracts of three wild red wild berry fruit species from
Southeast Serbia, viz, European cornel ( Cornus mas ), blackthorn (
Prunus spinosa L.) and wild blackberry ( Rubus fruticosus ).
Methods: Polyphenol content was determined using spectrophotometric and
High performance liquid chromatography (HPLC) methods. Antioxidant
activity was estimated by 2,2`- diphenyl - 1 - picrylhydrazyl (DPPH)
test while reliminary antimicrobial tests were carried out by disc
diffusion method in which antibacterial activity was evaluated by
measuring the zone of inhibition against test bacterial strains. Broth
microdilution method was used to determine the minimum inhibitory
concentration (MIC) and minimum bactericidal concentration (MBC).
Results: The highest amount of total phenols was found in European
cornel (8625.89 mg kg-1FW). Galic acid, caffeic acid, p-coumaric acid,
ferulic acid, (+)-catechin, procyanidin B2, (-)-epicatechin, quercetin,
rutin and quercetin-3-glucoside were the main polyphenols in the fruit
extracts. All extracts showed high scavenging effect on DPPH radical
with IC50 values ranging from 22.19 to 31.18 ml g-1, as well as high
antimicrobial activity on almost all the tested bacterial strains.
Conclusion: Extracts of wild berry fruits may be suitable for the
preparation of medicinal and nutritional products
Severe Hepatitis E virus infection in a patient with rheumatoid arthritis treated with baricitinib
On the genus of the intersection graph of ideals of a commutative ring
To each commutative ring R one can associate the graph G(R), called the intersection graph of ideals, whose vertices are nontrivial ideals of R. In this paper, we try to establish some connections between commutative ring theory and graph theory, by study of the genus of the intersection graph of ideals. We classify all graphs of genus 2 that are intersection graphs of ideals of some commutative rings and obtain some lower bounds for the genus of the intersection graph of ideals of a nonlocal commutative ring