Excellence with leadership: the crown indicator of SCImago Institutions Rankings Iber report

Although there are many models for ranking higher education institutions, the SCImago Institutions Rankings  methodology stands out for its ability to present quantitative and qualitative indicators of scientific output. Besides Total number of published papers, several indicators are concerned with quality dimensions of published papers, such as International collaboration, Scientific leadership or High quality publications . However, official rankings are provided solely on the basis of one indicator: Output (total number of published papers ). This paper presents a statistical I-distance method that integrates all the indicators into one value, which therefore represent a rank and show which of the input indicators is the most important for the process of ranking. Our results clearly showed that Excellence with Leadership  occupies the most significant spot

Measuring efficiency of football teams by multi-stage DEA model

Primjenom neparametarskog izlazno orijentiranog varijabilnog DEA modela, u članku je dana analiza tehničke učinkovitosti promatrane nogometne reprezentacije tijekom kvalifikacijskog ciklusa za Svjetsko prvenstvo 2010. Ako metoda obavijanja podataka posjeduje dvostupanjsku strukturu, prvi stupanj koristi ulaze u generiranju izlaza koji su ulazi drugog stupnja. Ranije generirani indeksi učinkovitosti za aspekt napada i obrane naći će se u ulozi novih parametara u drugostupanjskoj DEA analizi koja za cilj ima prikazati nove rezultate kao posljedicu integralnog promatranja oba i suštinski neodvojiva aspekta nogometne igre. Ovaj teorijski prilaz je strukturiran na sljedeći način: nogometni timovi su definirani kao produkcijske jedinice o kojima se odlučuje, zatim je utvrđena metodologija, specifično, opseg promjena i kriteriji, procedura analize i varijable, kao i opis korištene teorijske analize.Using the nonparametric variable output-oriented DEA (Data Envelopment Analysis) model, this paper analyses technical efficiency of the observed national football team in the qualifications for 2010 FIFA World Cup. If DEA model has a two stage structure, the first stage uses inputs to generate outputs that then became the inputs to the second stage. The indexes of efficiency, previously generated for attack and defence, will be implemented as parameters in the second-stage DEA analysis in accordance with the initial aim of this paper, to present new results as the outcome of the comprehensive approach to both inseparable aspects of the football. This theoretical approach is structured as follows: the football teams are defined as DMU (Decision-Making Units), then, the methodology is established, specifically, the stages of range and objectives, analysis of procedure and variables, and the description of the theoretical analysis used

Changes in Soil Erosion Intensity Caused by Land Use and Demographic Changes in the Jablanica River Basin, Serbia

The aim of this research is to determine the change in the spatial distribution of erosion intensity in the territory of the Jablanica River Basin in the period 1971-2016 caused by land use and demographic changes. The Erosion Potential Method (EPM) was used to quantify changes in erosion intensity and to estimate the total annual sediment yield. The research results show that the value of the erosion coefficient decreased from 0.432 in 1971 to 0.360 in 2016. Specific annual gross erosion in the Jablanica River Basin was 654.41 m(3)/km(2)/year in 1971, while in 2016 it was 472.03 m(3)/km(2)/year. The analysis of proportional changes was used to determine demographic changes and land use patterns in the basin area. In terms of the scale and intensity of the erosion process, three types and one sub-type of population dynamics of settlements and land use changes were distinguished, respectively: progressive, stagnant, regressive and dominant regressive. It was concluded that the results show the significance of demographic and land use changes in the control of the intensity of erosion. The Soil Erosion Map may be useful to planners and land use managers to take appropriate decisions for soil conservation in the basin

Statistical analysis of temperature regime change on the example of Sokobanja basin in eastern Serbia

The changes and oscillations in air temperature during the second half of the 20th and in the early 21st century, have become one of the major concerns of almost all scientific disciplines. Such changes are noticeable both at the local and global level. The objective of this paper is to point out that the changes of this climate element can also be detected at the local level. The research underlying this paper is, in terms of territory, limited to the Sokobanja basin in Eastern Serbia. The analysis relies on the data on air temperature for the period 1946-2012 taken from the Meteorological weather station located in Sokobanja. The obtained data were processed in line with the recommendations of the World Meteorological Organization. The evidenced statistically significant changes in air temperature were examined using the following statistical tests: Pettit test, Standard Normal Homogeneity test, Buishand range test, and von Neumann test

The role of a pharmacist in pharmacovigilance system

Introduction: Although they represent an important mediator between patients and National Pharmacovigilance Centre, pharmacists still don't participate enough in system of reporting adverse drug reactions (ADR). By reporting ADR both quality of therapy and quality of patient's life are improving, and pharmaceutical industry is also encouraged to invent and produce new formulations which will be better beared and whose use will significantly improve risk-benefi t ratio. Aim: The aim of this work is that by collecting information about ADRs, based on direct contact of a pharmacist and patients, explain and improve the role of a pharmacist in pharmacovigilance system. Subjects and Methods: Information about adverse reactions were being collected in three private pharmacies in Inđija and in one private pharmacy in Sombor. In period from 20.12.2017.-10.01.2018. pharmacists collected data about adverse reactions of medicines. In period from 11.01.-01.02.2018. patients were additionally informed about unexpected and adverse drug reactions. The standard form for reporting an adverse reaction, which was taken from the site of Medicines and Medical Devices Agency of Serbia (ALIMS), was fi lled for each reported case and sent to National Pharmacovigilance Center (NPC). Suspect drugs were classified in categories according to Anatomical-Therapeutic-Chemical classification (ATC). Results: In first period, there were 19 reported reactions. After additional information given to patients, there were 33 reported adverse reactions. The most numerous adverse drug reactions were reported for the group of cardiovascular drugs (32.7%), the group of anti-infective drugs with systemic effects (15.4%) and for group of drugs which affect nervous system (13.5%). After analyzing reported reactions, according to NPC all of reactions were expected (52), but 3 of them fulfilled criteria of seriousness. Conclusions: Thanks to additional information and direct communication between a pharmacist and patients, reporting unexpected and adverse drug reactions is significantly improving

ROOT CAUSE IDENTIFICATION OF TENSILE TEST

Every organization faces continuous quality improvement and needs to use an appropriate tools and techniques to achieve that. The basic requirements for success and solving the problems are use of quality tools which will guide you step by step to solve them. Contents of this paper try to use well known root cause identification tool with implementation at laboratory tensile test of reinforced steel, providing mechanical properties of metal specimen. Cause analysis tool are used when you want to discover the cause of a problem or situation or to gain desired results

Three-stage entry game: The strategic effects of advertising

This paper analyzes the effects of investment in advertising in the three-stage entry game model with one incumbent and one potential entrant firm. It is shown that if a game theory is applied, under particular conditions, advertising can be used as a strategic weapon in the market entry game. Depending on the level of the advertising interaction factor, conditions for over-investment in advertising for strategic purposes are given. Furthermore, three specific cases are analyzed: strictly predatory advertising, informative advertising and the case when one firm’s advertising cannot directly influence the other firm's profit. For each of them, depending on the costs of advertising and marginal costs, equilibrium is determined, and conditions under which it is possible to deter the entry are given. It is shown that if the value of the advertising interaction factor increases, power of using advertising as a weapon to deter entry into the market decreases. Thus, in the case of informative advertising, advertising cannot be used as a tool for deterring entry into the market, while in the case of predatory advertising, it can. Also, we have proved that in the case of strictly informative advertising an over-investment never occurs, while in the two other cases, there is always over-investment either to deter or to accommodate the entry

Analiza paketa podatkov

Data Envelopment Analysis (DEA) is a decision making tool based on linear programming for measuring the relative efficiency of a set of comparable units. Besides the identification of relatively efficient and inefficient units, DEA identifies the sources and level of inefficiency for each of the inputs and outputs. This paper is a survey of the basic DEA models. A comparison of DEA models is given. The effect of model orientation (input or output) on the efficiency frontier and the effect of the convexity requirements on returns to scale are examined. The paper also explains how DEA models can be used to assess efficiency.Analiza paketa podatkov (DEA) je orodje za odločanje, ki za merjenje relativne učinkovitosti niza med seboj primerljivih enot uporablja linearno programiranje. Poleg iskanja relativno učinkovitih in neučinkovitih enot, DEA določa vzroke in nivo neučinkovitosti za vsak vhod in izhod. V prispevku je podan pregled osnovnih DEA modelov. Prikazana je primerjava DEA modelov. Preučili smo vpliv orientacije modela (vhod ali izhod) na mejo učinkovitosti in vpliv zahtev na skalo. Prispevek podaja tudi način, kako lahko DEA modele uporabimo za doseganje učinkovitosti

DATA WAREHOUSING AND DATA MINING- A CASE STUDY

Abstract: This paper shows design and implementation of data warehouse as well as the use of data mining algorithms for the purpose of knowledge discovery as the basic resource of adequate business decision making process. The project is realized for the needs of Student's Service Department of the Faculty of Organizational Sciences (FOS), University of Belgrade, Serbia and Montenegro. This system represents a good base for analysis and predictions in the following time period for the purpose of quality business decision-making by top management. Thus, the first part of the paper shows the steps in designing and development of data warehouse of the mentioned business system. The second part of the paper shows the implementation of data mining algorithms for the purpose of deducting rules, patterns and knowledge as a resource for support in the process of decision making

The optimization of the higher education organizations promotion plan

In this paper we discuss the methodology of planning the promotions of the higher education organizations, which are aimed at target group of potential users of the high education services. Intention is to stress the necessity of planning communication activities in higher education institutions, with the main goal of building positive corporate image and reputation in order to gain leading position on the educational services market. The research problem is to determine the precise timetabling of visiting the secondary schools in order to promote higher education organizations which have equal aims, contents and expected results, but different places of promotion. The original Goal Programming model of deciding process of organizing the visits to the secondary schools is developed. Scheduling the promotion participants in the secondary schools, as the target destination, is done by the model, and the basic criteria were uniformity of their workload. In the case study of organizing the promotions, the suggested model was applied on target group of students in secondary schools as the potential users in The Faculty of Organizational Sciences, University of Belgrade. In addition, we developed and implemented an original algorithm for solving the promotion participants scheduling problems of large dimensions