Women Entrepreneurship in Serbia : Potentials and Constraints

In today’s modern society, entrepreneurship is considered to be the driver of economic and social development and the important source of competitive ad-vantage. With that regard and taking into account the empirically proven positive relationship between the gender equality and the level of sustainable economic and social development, the subject of this paper is the assessment of the position of women entrepreneurs in Serbia. The main objective is to identify business and en-vironmental barriers with which female entrepreneurs are confronted.The results of conducted research suggest that there exists a huge potential for the develop-ment of women entrepreneurship in Serbia. The women entrepreneurs in Serbia are confronted to significant barriers in their everyday business activities especially taking into account the difficulties in accessing the necessary information about potential markets and technology and even the potential sources for their financ-ing. At the same time they are facing with family care activities and other social norms within the community in which they live. The results are useable for creating supportive and encouraging environment for entrepreneurship in Serbia, especially for women-owned enterprises during business development

Histiocytosis x: Recurrent isolated mandibular lesion (case report)

Histiocytosis X usually affects children and adolescents. In our case, a 54-year-old woman was admitted to hospital for evaluating and treatment of an isolated, painless swelling of the left side of the mandible. Orthopanthomogram showed a cystic formation located on the left side of the mandibular body. Radiographs of the scull and body showed no pathologic changes. Laboratory findings did not reveal any abnormality. Surgical enucleation of the mandibular cystic lesion was performed and histopathological analysis confirmed the presence of histiocytosis X. One year after the first operation a relapse formation was found and surgically removed. Resection of the left side of the mandibular body was performed immediately followed by reconstruction of the mandibular defect with free osseos graft taken from the iliac crest. All follow-ups in the period of three years after the second operation showed no sign of relapse

THE INFLUENCE OF CO ON THE AIR QUALITY IN THE SURROUNDING OF THE FACULTY OF OCCUPATIONAL SAFETY IN NIŠ

Air quality in urban environments are determined by the concentrations of pollutants in it. The Air Quality Index (AQI) is used for assessment of air quality. The aim of this paper is to presents the quality of ambient air in the surrounding of the measuring point the Faculty of Occupational Safety in Niš, by using AQI and its comparation with the concentration of CO. Measurements of CO concentrations were performed in the period from April to June, and in the period from September to November by the automated measuring station "Airpointer".Key words: carbon monoxide; Air Quality Index; air quality; measuring station "Airpointer"

The influence of carbon black on curing kinetics and thermal aging of acrylonitrile–butadiene rubber

Elastomers based on a copolymer of butadiene and acrylonitrile (NBR) have excellent oil resistance but are very sensitive for degradation at very high temperatures. The aim of this applicative contribution was to determine the effect of high abrasion furnace carbon black with primary particle size 46 nm on aging properties of elastomeric materials based on NBR as network precursor. The curing kinetics was determined using the rheometer with an oscillating disk, in which the network formation process is registered by the torque variation during time. The vulcanizates were obtained in a hydraulic press at 150 °C. The mechanical properties of elastomeric composites were determined before and after thermal aging in an air circulating oven. The reinforcing effect of the filler particles was assessed according to mechanical properties before and after aging

Karakteristike i oblici prestupničkog ponašanja učenika srednje škole u jugoistočnoj Srbiji

Delinquent behavior of students, both in our country and in the countries in the region and the world, is a very topical and a complex issue, and as such, opens up space for a sociological study. Based on a very complex problem of a deliquent behavior at school, the research emphasis in this paper is on issues and problems relating to the deliquent behavior of secondary school students in Southeast Serbia, as well as on the correlation of features and forms of deliquent behavior and socio-economic and demographic features of students

Efekat suše na vodni režim i rastenje kvinoje (Chenopodium quinoa willd.)

Quinoa (Chenopodium quinoa Willd.) is a highly nutritious Andean seed crop which shows great potential to grow under a range of different stress environments. The objective of this study was to investigate the effect of drought on water regime and the growth of quinoa variety KVL52 in controlled conditions. The results of the present experiment indicate that the reaction of quinoa plants to drought are based on drought avoidance mechanisms: reduced transpiration and sustained water uptake. Transpiration was reduced due to the decrease of stomatal conductance and leaf area development. These results could be of practical importance for testing the possibility of growing quinoa as a new drought resistant crop in Serbia.Kvinoja (Chenopodium quinoa Willd.) je nutritivno visoko vredna kultura poreklom sa Anda, koja se može gajiti u različitim stresnim uslovima spoljašnje sredine. Cilj ovih istraživanja je bio da se ispita efekat suše na vodni režim i rastenje sorte kvinoje KVL52 u kontrolisanim uslovima gajenja. Dobijeni rezultati ukazuju da su reakcije kvinoje na sušu bazirane na mehanizmu izbegavanja suše: redukciji transpiracije i održanju usvajanja vode. Transpiracija je redukovana zahvaljujući opadanju provodljivosti stoma i redukciji lisne površine. Ovi rezultati mogu biti od praktičnog značaja za testiranje mogućnosti gajenja kvinoje kao kulture koja je otporna na sušu i nova za gajenje u Srbiji

Predictive parameters functioning arteriovenous fistula for hemodialysis in the elderly

© 2019, University of Kragujevac, Faculty of Science. All rights reserved. Elderly patients with end stage kidney disease represent a challenge for surgeons to create a vascular access. Determine predictive parameters functionality of the arteriovenous fistulas for hemodialysis in the elderly. The study was organized as a retrospective study at the Center for Dialysis, Clinic for Urology and Nephrology, Clinical Center Kragujevac. The study included patients older than 65 years with arteriovenous fistula thrombosis, in the period of four years, in which there is information on the length of the functioning fistula. The study included 48 patients, mean age 71.3±5.2 years, 29 (60%) men and 19 (40%) women. The data were analyzed according to gender and demographic structure, type of anastomosis, positioning, length of functioning fistulas, and the lumen diameter of the arteries and veins that are used to create a fistula. The median length of functioning arteriovenous fistula, based on Kaplan-Meier model, is 16 months (95% CI 6.9- 25.1). Median functioning for proximaly located fistulas was 24 months (range, 1-259), while median functioning in patient with distally located fistulas was 8 months (range, 1-96). The difference in relation to the positioning of the fistula was statistically significant (p=0.006). In univariate Cox regression model, a statistically significant predictor of the functioning of arteriovenous fistulae is fistula positioning (B=0.700; p=0.022). The predictive parameter of survival of arteriovenous fistulas in elderly is proximally located fistula

THE COMPARATIVE ANALYSIS OF THE RESULTS OF POLLUTANTS MEASUREMENTS IN AMBIENT AIR MEASURED WITH MEASURING STATIONS „AIRPOINTER“

Abstract: Measurements of pollutants in the ambient air are made with different devices and by using different methods. In order to determine the representativeness of the measurements results are performed inter-laboratory comparisons. This paper presents the results of an inter-laboratory test of NO, NO2, NOx, O3 and PM10 concentrations, which are measured by the automated measuring stations “Airpointer” at the measuring point city stadium “Sloboda" in Užice in the period of time: 11th to 17th February 2014. Keywords: pollutants, measuring station "Airpointer", comparative analisys of the result