Level Crossing Rate of Macrodiversity System in the Presence of Multipath Fading and Shadowing

Macrodiversity system including macrodiversity SC receiver and two microdiversity SC receivers is considered in this paper. Received signal experiences, simultaneously, both, long term fading and short term fading. Microdiversity SC receivers reduces Rayleigh fading effects on system performance and macrodiversity SC receiver mitigate Gamma shadowing effects on system performance. Closed form expressions for level crossing rate of microdiversity SC receivers output signals envelopes are calculated. This expression is used for evaluation of level crossing rate of macrodiversity SC receiver output signal envelope. Numerical expressions are illustrated to show the influence of Gamma shadowing severity on level crossing rate

The Minimum Wiener Connector

The Wiener index of a graph is the sum of all pairwise shortest-path distances between its vertices. In this paper we study the novel problem of finding a minimum Wiener connector: given a connected graph $G=(V,E)$ and a set $Q\subseteq V$ of query vertices, find a subgraph of $G$ that connects all query vertices and has minimum Wiener index. We show that The Minimum Wiener Connector admits a polynomial-time (albeit impractical) exact algorithm for the special case where the number of query vertices is bounded. We show that in general the problem is NP-hard, and has no PTAS unless $\mathbf{P} = \mathbf{NP}$. Our main contribution is a constant-factor approximation algorithm running in time $\widetilde{O}(|Q||E|)$. A thorough experimentation on a large variety of real-world graphs confirms that our method returns smaller and denser solutions than other methods, and does so by adding to the query set $Q$ a small number of important vertices (i.e., vertices with high centrality).Comment: Published in Proceedings of the 2015 ACM SIGMOD International Conference on Management of Dat

The path to Weimar Serbia? Explaining the resurgence of the Serbian far right after the fall of Milosevic

Published online: 10 Sep 2008.A number of European countries are experiencing a rise in the blue-collar and ethnic majority vote for the ultra-nationalist far right. The situation seems particularly ominous in Serbia, where the far right is enjoying a resurgence of electoral support, coming close to capturing the presidency in 2004. This study analyses the results of five post-Milosevic elections and finds support for the argument that the majority’s economic vulnerability and a sense of ‘ethnic threat’ are the major contextual predictors of far right support. In light of the demonstrated ability of the Serbian far right to mobilize economically vulnerable sections of the population, implementation of neo-liberal economic reforms might unintentionally bring them to power. The maintenance and development of the welfare state might counteract the electoral appeal of authoritarian ultra-nationalists.Djordje Stefanovi

Seeing the Albanians through Serbian eyes: The inventors of the tradition of intolerance and their critics, 1804-1939

The rise of the modern national states in the post-Ottoman Balkans was accompanied by coercive assimilation, deportation, and even extermination of ethnic minorities, especially the local Muslims. In the formative periods of the Serbian state and Royal Yugoslavia, ethnic Albanians were repeatedly subjected to most exclusionary and discriminatory policies. While these actions of the Serbian élite were guided by the geopolitical security pressures and the coercive utopia of homogeneous nation-state, Serbian policy makers were also influenced by a strong intellectual tradition of intolerance towards Muslim Albanians. While some members of the Serbian élite were planning and implementing repression and expulsion of Albanians, others were calling for tolerance and inclusion of Albanians in a wider Balkan union. The analysis of Serbian policies towards Albanians in the Balkan context enables us to reformulate and extend Miroslav Hroch’s influential theory of minority nationalisms. Djordje Stefanovi

Performance of Diversity System Output Signal in Mobile Cellular System in the Presence of α-μ Short Term Fading and Gamma Long Term Fading

In this paper, wireless mobile communication system with macrodiversity reception is considered. Macrodiversity system is consisting of macrodiversity selection combining (SC) receiver and three microdiversity SC receivers. Propagation channel suffers α-μ short term fading and Gamma long term fading resulting in system performance degradation. Analytical closed form expression for average level crossing rate (LCR) of macrodiversity SC receiver output signal envelope is obtained. Mathematical results are analyzed, presenting the influence of long term fading parameters and short term fading parameters on average level crossing rate. Obtained results can be used in the process of simulation and design of real-world environments mobile cellular telecommunication systems

Exploring the role of university education in reducing the appeal of right‐wing populism

First published: 02 October 2023. OnlinePublWhy are university‐educated ethnic majority men less likely to support right‐wing populism (RWP) than those without university education? To investigate this under‐researched question, we conducted an exploratory study using semistructured interviews and thematic analysis with white Australian men from different socioeconomic backgrounds. While some with university education supported RWP, their views aligned with a moderate version of the ideology. Student/graduate supporters of RWP were opposed to hiring practices designed to support gender and ethnic equity. Students/graduates who experienced contact with Others were generally more positive about diversity, but this was not always the case for non‐university participants. While students/graduates with RWP leanings tended to see university as a politically biased institution, concerns about political correctness were widespread across the sample. Significantly, numerous students/graduates experienced university education as promoting a pluralist outlook, and this outlook appears fundamentally incompatible with the monist tendencies of RWP ideology. However, findings also suggest that university education is not the only route to a pluralist outlook, nor does it always lead to a rejection of RWP. Hence, developing a pluralist outlook may be more important than university education in reducing the appeal of RWP. The implications of these exploratory findings for future research are discussed.Nathan Manning, Djordje Stefanovi

THE RELEVANCE OF PEER FEEDBACK IN EFL CLASSES FOR TERTIARY LANGUAGE LEARNERS

This paper reports on a study conducted at at the University of Tetovo (UT), Northern Macedonia and USAMVBT “Regele Mihai I al Romaniei ” from Timisoara, Romania, analysing the effect of peer feedback in English as a Foreign Language (EFL) teaching and learning. The authors hypothesized that peer feedback was not percieved as a genuine strategy for learning languages, while it could be put forth as a useful strategy for improving not only language skills but also critical thinking, as well as empathy. Based on the participants ' responses, the students ' perceptions were anlyzed with an aim of encouraging them to become more confident learners, to improve their English language proficiency and to gain feedback skills. The study was conducted throughout the second semester of the academic year 2018-2019. Acknowledging convenience sampling, the 21 (n=21) subjects who participated in this study included 14 (n=14) students from the seventh semester of the UT, English Language and Literature Department and 12 (n=12) students from USAMVB “King Michael I of Romania” from Timisoara, Romania. The effects and perceptions of peer feedback were discussed from the students ' perspective and from our corroborated points of view. Data were collected using student questionnaires in which participants were asked to reflect back on their experience on peer feedback throughout their studies. Student responses were subjected to a modified content analysis to identify the main themes and topics. Semi-structured interviews with 12 students were undertaken to substantiate the essential findings of content analysis

General damages awarded for emotional distress resulting from miscarriage of justice and false imprisonment

Compensation for non-economic damages, the debate over its justification, and the adequacy of compensation awarded for harm to non-economic goods have been contentious issues among domestic legal theorists for decades. The provisions of the 1978 Law on Obligations resolved this debate by introducing the right to monetary compensation for non-economic damages in explicitly enumerated cases. The aim of the authors is to use appropriate scientific methods to demonstrate how failures by state authorities, specifically the police and judicial bodies, can cause non-economic damage to individuals through miscarriages of justice and false imprisonment. Freedom is a fundamental human right, guaranteed by the Constitution, laws, and ratified international documents. This raises the question of how, and to what extent, a wrongful conviction or unlawful deprivation of liberty violates this fundamental right, and what legal remedies are available to the victim. The focus of the paper will be on the legislation of the Republic of Serbia, as well as the views and interpretations in legal theory and in practice regarding the victim’s claim for monetary compensation for harm to non-economic goods, such as reputation and honor

Helicopter Laboratory Model Experiment With Web Access

This paper describes the experiment for learning and investigation of the helicopter laboratory model static and dynamic characteristics. Helicopter model is not the free flying one, as it has the two degrees of freedom â?? up / down movement and rotation with respect to vertical axis of the main propeller. The two basic different kinds of experiments with the helicopter model are possible. In the first group are experiments with the model for measurement of the static and dynamic characteristics that show the basic capabilities and overall performance of the model. Second group of experiments are control experiments for movement of the system to the desired position or for performing some continuous oscillatory movement. All experiments can be performed locally from the lab with the experimental setup and remotely. Remote experiments are performed by using the web user interface for controlling the laboratory equipment and the IP camera for observing the movements of the helicopter model