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Publikacije (45708)

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R. Pavlović, Javier Lamoneda Prieti, Emilija Petković, Fakultet sporta i fizičkog vaspitanja Srbija Univerzitet u Nišu

Bacanje kladiva je motorički vrlo kompleksna bacačka disciplina sa manifestacijom više različitih sila koje nastoje da onemoguće rotaciono kretanje sprave i bacača u projektovanoj sagtalnoj ravni. Kinematički parametri su jedan od segmenata u analizi atletskih disciplina, uključujući i bacanje kladiva. Cilj studije bio je da se utvrde prostorne i vremenske razlike kinematičkih parametara između muških i ženskih finalista, bacača kladiva Svjetskog prvenstva u Londonu. Studija je sprovedena na uzorku 24 finalista Svjetskog prvenstva u Londonu, 2017, sa ciljem analize razlika kinematičkih parametara između muških i ženskih bacača kladiva. Da bi se dobili potrebni rezultati primenjen je t-test za male nezavisne uzorke. Rezultati su potvrdili razlike u većini mjerenih parametara ali statistički značajne razlike između muških i ženskih finalista su potvrđene samo u visini izbačaja (T=2,992; p<0,009). Muški finalisti su bacali kladivo u prosjeku sa visine 1,74±0,13m, a žene sa 1,54±0,17m. Na osnovu dobijenih rezultata kinematičkih parametara može se zaključiti da su evidentne kvantitativne i kvalitativne razlike u mjerenim kinematičkim parametrima finalista u Londonu, ali da su statistički značajne razlike evidentrane samo u visini izbačaja sprave.

R. Pavlović, Herzegovina, Javier Lamoneda Prieti, Emilija Petković

Hammer throw is motor-wise an extremely complex throwing discipline with the manifestation of several different forces that impede the rotational movement of the device and the thrower in the projected sagittal plane. Kinematic parameters are one of the segments when analyzing athletic disciplines, including hammer throw. This study aims to determine spatial and time differences of kinematic parameters between male and female hammer throw finalists at the 2017 Athletics World Cup in London. The study was conducted on a sample of 24 finalists of the 2017 Athletics World Cup in London, with the aim to analyze the differences in kinematic parameters between male and female hammer throwers. The results were acquired by applying the Independent Sample t-Test. It has confirmed the differences in most of the parameters, except those regarding ejection height (T=2,992; p<0,009), where it established statistically significant discrepancies between male and female finalists. On average, the male finalists threw a hammer from a height of 1,74±0,13m, and the female finalists from 1,54±0,17m. Based on the obtained results of kinematic parameters, it can be concluded that quantitative and qualitative differences in the measured kinematic parameters of the finalists in London are evident, but that statistically significant differences are recorded only in the ejection hight of the device.

T. Namas, Šejla Džakmić, I. Džafić

Fault location is one of the most common aspects of power system analysis and protection. In order to maintain system's stability and avoid long lasting blackouts, it is important to localize a fault in shortest possible time. This paper analyzes already published impedance-based fault location methods and suggests new algorithm based on orthogonal components. Proposed method is applied on Simulink created three phase model, considering various system specifications including different fault resistance values, having more than one fault on a line at different locations, grounded and ungrounded generators effects, sampling rate changes, line length effects, etc. The results are indicating good accuracy of the algorithm itself.

Tarik Hrnjić, I. Džafić, T. Namas

This paper focuses on closed loop operational mode of Volt-VAr control (VVC) algorithm, as well as the power flow (PF) methods that can successfully be used to implement VVC. Two methods to implement efficient PF are Newton-Raphson approach and current iteration approach. The paper compares both approaches to find the one most suitable for the implementation of closed loop VVC algorithm.

Borko Katanić, Univerzitet u Nišu Srbija Fakultet sporta i fizičkog vaspitanja, P. Ilić, Aleksandar Stojmenović, Mima Stanković, Manja Vitasović, Srbija Beograd

Cilj ove pregledne studije bio je da ukaže na primenu elektromiografa u fudbalu. Za pretraživanje literature korišćene su sledeće elektronske baze podataka: Google Scholar, PubMed, Medline, Mendeley u periodu od 2005. do 2019. godine. Nakon procedure selekcije radova u odnosu na odgovarajuće kriterijume, odabrano je 20 studija koje odgovaraju potrebama ovog sistematskog preglednog istraživanja. Mišići koji su najviše bili ispitivani su: m.musculus quadriceps, m.biceps femoris, m.gastrocnemius, m.tibalis anterior i m. gluteus maximus. Pregledom je uočen prilično heterogen izbor tema kada je u pitanju uloga EMG u fudbalu, pa su i njihovi ostvareni rezultati grupisani prema određenim karakteristikama. S tim u vezi rezultati su razvrstani prema sledećim temama: akutni efekti specifične fudbalske aktivnosti, uticaj fudbalskog treninga snage, trening udaraca po lopti nogom, rezultati u odnosu na polne razlike i ostale teme koje nije bilo moguće razvrstati u pomenute grupe. Sumiranjem dosadašnjih rezultata stiče se uvid u višestruku primenu EMG u fudbalu sa ciljem što kvalitetnije analize neuro-mišićne aktivacije.

Borko Katanic, P. Ilić, Aleksandar Stojmenović, Mima Stanković, Manja Vitasović, Serbia Equestrian Club Gorska Team

The aim of this systematic review was to indicate and discuss the use of electromyogram in football. For the literature review, following electronic databases were used: Google School, PubMed, Medline and Mendeley for the period from 2005. to 2019. 20 papers were selected for this systematic review based on the established criteria. These studies focused the most on researching the following muscles: m.musculus quadriceps, m.biceps femoris, m.gastrocnemius, m.tibalis anterior and m. gluteus maximus. The review has determined quite a heterogenic choice of topics when it comes to the use of the electromyogram (herein after referred to as: EMG) in football, so the obtained results were grouped based on the similar characteristics. Therefore, the results were categorized according to the following topics: acute effects of the specific football activity, impact of the football strength training, training of kicking on the ball, results based on the difference in sexes, while the rest of the results were sorted in the joint group. Summarizing of the obtained results provides the insight in the multiple possibility for use of EMG in football in order to develop high quality analysis of the neuro-muscle activation of a certain muscle regions of the football players.

Bojan Ćudić, Matjaž Klemenčič, J. Zupančič

The article deals with the contemporary labor migrations from Bosnia and Herzegovina to Slovenia and the other countries of European Union, specifically during the period of the COVID-19 pandemic On the basis of fieldwork among the participants in these migrations, it seeks to identify the specifics of circumstances and situations that arose suddenly with the closure of political borders and the demands of social di-stancing In these circumstances, we supposed that labor migrants found themselves to be a particularly vulnerable group of population The case study has denied that this is completely true On the other hand, labor migrations from Bosnia and Herzegovina to Central, Western and North European and some non-European countries have been a continuous process for the last century and at least migration flows must be taken as a fact which directions, volumes and character are greatly influenced by labor market regulations in each individual EU member and other states Periodically, specific political and social situations also gain importance The COVID-19 pandemic has exactly such an impact © 2020, University of Ljubljana All rights reserved

Ante Kolak, Ivan Markic

Ovaj rad usmjeren je na proučavanje prijateljskih odnosa unutar razrednog odjela. Odnosi među vršnjacima izuzetno su važni u školskom razdoblju, a nedostatak ili trajne teškoće u prijateljskim odnosima mogu se reflektirati na uspjeh učenika, usvajanje nastavnih sadržaja, sliku učenika o sebi, socijalni status i socijalni uspjeh itd. Cilj empirijskog dijela rada je ispitati kvalitetu prijateljskih odnosa unutar razrednog odjela u kategoriji ‘najbolji prijatelj’. Iz cilja istraživanja proizašla su tri istraživačka pitanja: Kakav je profil prijateljskih odnosa u kategoriji ‘najbolji prijatelj’? Kako izgleda hijerarhijska struktura dimenzija kvalitete prijateljstva u ponuđenim kategorijama? Koje karakteristike opisuju najboljeg prijatelja i idealnog prijatelja? Rezultati istraživanja utvrđuju dva profila: opći te profil blizine i roditeljske uključenosti. Utvrđivanje hijerarhijske strukture ukazalo je na važnost brige i priznanja (dječaci) te pouzdanosti i rješavanja problema (djevojčice). Vrh hijerarhijske ljestvice zauzimaju dimenzije priznanja i pouzdanosti. Kao najznačajnije karakteristike koje opisuju najboljeg prijatelja ističu se razgovor i zajedničko provođenje vremena, povjeravanje i pomoć, a u idealnom prijateljstvu izdvajaju se moralne vrijednosti prijatelja.

This paper investigates how successful B2 level English language learners (ELLs), high school students are in translating a group of most common false friends (FFs) from English to BCS and vice versa and examines whether they are more successful in translating absolute or partial FFs. In line with the classification by Otwinowska-Kasztelanic (2015), false friends are considered to be a class of cognates. They are further sub-classified into absolute FFs, which have the same or similar form and dissimilar meaning in two languages (e.g. eventually, meaning finally in English and eventualno, meaning possibly in BCS) and partial false friends with the same or similar form and one same and another dissimilar meaning. (e.g. argument in English, meaning reason, the same as argument in BSC and disagreement, the meaning for which a different word is used in BCS, rasprava). Due to their deceptive nature, FFs have been researched within different theoretical frameworks - theoretical, contrastive, applied linguistics, semantics, pragmatics and translation studies. By means of a survey and descriptive and inferential statistics, this paper confirms the hypothesis that there is a statistically significant difference between correct translation of FFs from English to BCS and their correct translation from BCS to English. Furthermore, the second hypothesis was also confirmed, namely that the B2 ELLs are more successful in translating partial than in translating absolute FFs. The research results suggest that in teaching FFs as items of deceptive vocabulary both explicit and implicit methods need to be applied

Jelena Nikitović, M. Urošević, D. Drobnjak, Bogoljub Novakovic, Tatjana Krajišnik, S. Stanivuković, M. Antic, H. Vilić

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