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Archibald Reiss Days : International Scientific Conference, Belgrade, 3-4 March 2014 : Thematic Conference Proceedings of International Significance. Vol. 1
Get PDFHealth and safety of athletes in Serbia
No full textSports activities are necessary for personal development and for maintaining good health,
promotion of physical characteristics, greater personal satisfaction, better and more effective use
of leisure time and bonuses quality of life. In recent years, Serbia has made significant progress in
the direction of regulation primarily health, and then the safety of athletes. A new Law on Sports,
Law on the Prevention of Violence and Misbehaviour at Sports Events, Rules on Determining Medical Fitness to Athletes Performing Sports Activities and Participation in Sporting Events, and many other regulations. They brought some novelties in the regulation of health and safety of athletes, but many questions remain unregulated. Perhaps what is needed is to make a uniform law on the safety and health of athletes. It is especially important to bring the law to sports that were once practiced in this region, which is known to exist for several decades, even centuries, include in the register of cultural heritage, and those who cherish such a cultural treasure that somehow be privileged
The influence of different physical education programs on police students' physical abilities
No full textPurpose - The purpose of this paper is to determine the influence of different Specialized Physical Education (SPE) teaching programs on the level of students' physical abilities. Design/methodology/approach - In the Academy of Criminalistic and Police Studies (ACPS), one of the teaching program goals is an improvement of student's physical abilities level. Since the establishment of ACPS, three SPE programs have been implemented differing in number of class hours. Five different tests were used: "Isometric dead lift," "Hand grip," the Long jump (LJ), the Sit-up test and the Cooper test. Findings - Multivariate analysis of variance results indicated a statistically significant difference between the programs in tests LJ, Sit-up and Cooper. The Bonferroni test showed differences between all three programs. The discriminant analysis showed that both discriminant factors are statistically significant. The greatest factor in the first function was the test LJ, while the greatest factor in the second discriminant function was the Sit-up test. Practical implications - The importance of research was the fact that by determining the changes of students' physical abilities level, the authors can evaluate the effectiveness of various SPE programs. Results could be used in planning standards, selection and control of the achieved physical abilities level. Social implications - Changes could contribute to the positive effects of the educational process on improvement of students' physical abilities. Originality/value - This is one of the few studies which examine the influence of quantitatively different teaching programs on the level of physical abilities within a period of 15 years
Ne-etičko ponašanje u sportu
Get PDFThis study analyses various forms of unethical behavior, which are increasingly present in sports. The focus of the research is to identify various forms of punishment, humiliation, mistreatment and abuse in sports clubs, and to approach this issue with determination with the aim of reducing or removing the consequences. The research was conducted in a variety of sports clubs in Serbia, which were chosen at random, and the participants (n=250) responded to a specifically structured questionnaire. The research showed that, depending on the age category, various types of unethical behavior took place: undue threats and punishment (55% men, 50% women, but with a statistically significant gender difference among the lower age categories), forced to compete despite possible health risks (over 80% athletes), and sexual harassment (78% of the female respondents in the category of younger seniors). Abuse and mistreatment were present in the pioneer, cadet and junior categories, and they became more intense in the senior age. Considering that the research results clearly show the existence of certain forms of abuse and mistreatment of athletes, this points to the need for the educational work of coaches to be focused on sport.U ovom istraživanju analizirani su različiti oblici ne-etičkog ponašanja koje je sve češće u sportu. Fokus istraživanja bio je da se identifikuju različiti oblici kažnjavanja, ponižavanja, zlostavljanja i maltretiranja u sportskim klubovima, i da se ovom problemu pristupi sa ciljem da se njegove posledice ublaže ili nestanu. Istraživanje je sprovedeno u različitim sportskim klubovima u Srbiji, koji su nasumice izbrani, a učesnici (n=250) su odgovorili na posebno strukturisan upitnik. Istraživanje je pokazalo da, u zavisnosti od starosne kategorije, različiti oblici ne-etičkog ponašanja se javljaju u vidu: nepotrebne pretnje i kazne (55% muškaraca, 50% žena, ali sa statistički značajnim razlikama među polovima nižih starosnih kategorija), prisiljavanja na takmičenje uprkos opasnosti po zdravlje (preko80% sportista), i seksualnog uznemiravanja(78% ženskih učesnika u kategoriji mlađih seniora). Zlostavljanje i maltretiranje mogu se uočiti i među pionirima, kadetima i juniorskim kategorijama, i postaju ozbiljniji problemi u seniorskim kategorijama. S obzirom na to da rezultati istraživanja jasno ukazuju na to da postoji zloupotreba i maltretiranje sportista, ovo istraživanje ukazuje na potrebu da se treneri obrazuju tako da se tokom rada više fokusiraju na sportske aktivnosti
Uloga privatnih oružanih snaga u tradicionalnim konceptima bezbednosti
Get PDFSeen from a historical point of view, security and defense have always been tasks mostly dealt with by state institutions (police, armed forces and intelligence services). The state's monopoly over the instruments of force has visibly 'weakened' in the past two decades, largely as a result of the privatization trend permeating all areas of modern society. After the end of the Cold War, private military companies have started to extensively provide professional military services, both to developing countries and industrialized countries. These services range from strategic, tactical and technological advice, training and logistical support, to providing exclusively military (combat) services to governments of various countries, multinational corporations, international organizations, non-government agencies and other non-state actors. Private military companies are certainly not a transient phenomenon or occurrence; on the contrary, they will be very important providers of private military services in the future. In this regard, the paper generally and systematically examines the role of private military companies and armed forces, in the traditional concepts of both national and international security, with special overview of their historical development.Posmatrano sa istorijskog aspekta, bezbednost i odbrana odu- vek su bili zadaci kojima su se, uglavnom, bavile državne institucije (policija, vojska i obaveštajne službe). Monopol države nad instrumentima sile vidno je 'oslabio' u protekle dve decenije, najviše kao rezultat trenda privatizacije koji je zahvatio sve oblasti modernog društva. Nakon završetka hladnog rata privatne vojne kompanije u velikoj meri počele su da pružaju profesionalne vojne usluge, kako zemljama u razvoju, tako i industrijski razvijenim zemljama. Te usluge variraju od strateških, taktičkih i tehnoloških saveta, obuke i logističke podrške, kao i pružanja isključivo vojnih (borbenih) usluga vladama raznih država, multinacionalnim korporacijama, međunarodnim organizacijama, nevladinim agencijama i ostalim nedržavnim subjektima. Privatne vojne kompanije svakako nisu neki prolazni fenomen ili pojava; naprotiv, one će predstavljati veoma važnog snabdevača privatnih vojnih usluga u budućnosti. U vezi s tim, u radu se na jedan generalni i sistematski način sagledava uloga privatnih vojnih kompanija i oružanih snaga, kako u tradicionalnim konceptima nacionalne, tako i međunarodne bezbednosti sa posebnim osvrtom na njihov istorijski razvoj
Specific quantum mechanical solution of difference equation of hyperbolic type
No full textDifficulties connected to solving difference equations of hyperbolic type were analyzed in this work and discussed in detail. The results are compared to those of the standard wave equation and certain similarities were established. The method of solving the equation is generalized by means of kernel expanded into separable polynomials. The analysis was inspired by some new ideas concerning quantization of time. Two examples are given: excitons and phonons in thin crystalline films. The advanced methodology of Green's function method and the application of this new methodology resulted in a set of interesting conclusions concerning thin film properties. The significance of the obtained spatial dependence of exciton concentration was discussed and it was concluded, on the basis of the found spatial dependence of exciton concentration, that such boundary conditions of a thin molecular film which lead to high exciton concentrations can be determined. It was also concluded that thin films possess high superconductive properties, that physical characteristics of thin films are spatially dependent and that the spatial dependence can be the basis for widening the field of application of nanostructures
Praktična primena softverskih alata otvorenog koda u kriptografiji
Get PDFSecurity of computer systems is becoming more important, because more users in more ways use more information in the computer world. With the development of information technologies and telecommunication systems and a greater diffusion in the geographical sense growing is also the possibility of misuse of data which are transferred through open and insecure communication paths which requires a more efficient protection. In the system of data transfer attackers can easily destroy data, modify them or the information can come into possession of unauthorized persons or organizations which can often have very heavy consequences. The problem is especially expressed in some organizations such as state administrations, banking, judicial, military, medical and other administrations. In this paper explained are basic terms related to crypts and algorithms which were used and which are used, as well as methods of data protection in computer networks based on cryptography in order to protect privacy inside a network of computers. Explained are symmetrical and asymmetrical cryptosystems and the technique of digital signature. Also, the subject of this paper is the presentation of the program CrypTool and CryptoWork flow, which belong to the most famous free ie. shareware software in the field of cryptography, with special emphasis on the possibility of applying different algorithms and comparative analysis of their work and are given concrete examples of their use.Sigurnost računarskih sistema oduvek je bitna, a danas postaje još važnija, jer sve više korisnika na sve više načina koristi sve više informacija u sadašnjem informatičkom svetu. Sa razvojem informacionih tehnologija i telekomunikacionih sistema i sve većom rasprostranjenošću ljudskog društva u geografskom smislu raste i mogućnost zloupotreba podataka koji se prenose otvorenim komunikacijskim putevima, što zahteva efikasniju zaštitu. U sistemu prenosa podataka napadači mogu lako da unište podatke, da ih modifikuju ili da informacije dođu u posed neovlašćenim osobama ili organizacijama, što može imati vrlo teške posledice. Problem je posebno izražen kod nekih organizacija kao što su državne administracije, pravosudne, vojne, medicinske, bankarske ali i druge. U ovom radu su objašnjeni osnovni pojmovi vezani za kriptovanje i algoritmi koji su se koristili i koji se koriste, kao i metode zaštite podataka u računarskim mrežama bazirane na kriptografiji kako bi se zaštitila takozvano sveto trojstvo sigurnosti CIA (od početnih slova engleskih reči: poverljivost - confidentiality, integritet - integrity, dostupnost - availability) unutar mreže računara. U radu su objašnjeni simetrični i asimetrični kriptosistemi i tehnika digitalnog potpisa. Takođe, predmet rada je predstavljanje programa CrypTool i CryptoWork flow, koji spadaju u najpoznatije slobodne, tj. shareware softvere u oblasti kriptografije, sa posebnim naglaskom na mogućnosti primene različitih algoritama, kao i komparativna analiza njihovog rada, a dati su i konkretni primeri njihovog korišćenja
Analiza geoprostorne i vremenske distribucije zemljotresa kao prirodnih katastrofa
Get PDFNatural disasters of all types (meteorological, hydrological, geophysical, climatic and biological) are increasingly becoming a part of everyday life of the modern man. The consequences are often devastating to life, health and property of people, but also to the security of the country and the entire international community. Earthquakes belong to a group of geophysical disasters and occur very often, with the highest number of them being of lower intensity. Stronger earthquakes may cause extensive property damage and serious consequences to human life by forming cracks in the earth's crust, ground shaking, flooding, release of hazardous substances, and the like. In this sense, for effective and efficient protection and response to emergencies caused by deleterious effect of seismic waves, it is necessary, among other things, to comprehensively investigate this natural phenomenon, and therefore, the subject of this paper is a form, consequences, and temporal and geospatial arrangement of earthquake manifestations. Using an international database on natural disasters of the Centre for Research on the Epidemiology of Disasters (CRED), headquartered in Brussels, with the support of statistical analysis software (SPSS) and the method of thematic cartography, we have tried to point to the number, trends, consequences, and temporal and geospatial distribution of earthquakes in the period from 1900 till 2013, as well as to the need for an adequate response of the society to this type of a natural disaster.Prirodne katastrofe svih vrsta (meteorološke, hidrološke, geofizičke, klimatske i biološke) sve više postaju deo svakodnevnog života savremenog čoveka. Posledice su veoma često razorne po život, zdravlje i imovinu ljudi, ali takođe i po bezbednost države i čitave međunarodne zajednice. Zemljotresi (trusovi) pripadaju grupi geofizičkih prirodnih katastrofa i dešavaju se vrlo često, s tim što je najveći broj slabijeg intenziteta. Snažniji zemljotresi mogu da prouzrokuju veliku materijalnu štetu i ozbiljne posledice po život ljudi, nastajanjem pukotina u Zemljinoj kori, potresom tla, poplavama, oslobađanjem opasnih materija i sl. U tom smislu, radi efektivnije i efikasnije zaštite i reagovanja u vanrednim situacijama izazvanim štetnim dejstvom seizmičkih talasa, potrebno je, između ostalog, sveobuhvatno istražiti ovaj prirodni fenomen, tako da će predmet ovog rada biti forma, posledice, vremenski i geoprostorni raspored ispoljavanja zemljotresa. Koristeći međunarodnu bazu podataka o prirodnim katastrofama Centra za istraživanje epidemiologije katastrofa (CRED) sa sedištem u Briselu, uz podršku programa za statističku analizu (SPSS) i metoda tematske kartografije, pokušali smo da ukažemo na broj, trendove, posledice, vremensku i geoprostornu distribuciju zemljotresa u periodu od 1900. do 2013. godine, kao i na potrebu adekvatnog odgovora društva na tu vrstu prirodne katastrofe
Erektilna disfunkcija, zavisnost od droge i osobine ličnosti
Get PDFIntroduction Drug addiction is a relatively frequent cause of erectile dysfunction. It is believed that this substance induced disorder is a consequence of direct physiological effects of toxic substances. Objective The subject of this paper is to analyze the impact of variables of dependency and variables of personality on the differences between groups of drug users with and without diagnosed erectile dysfunction. The objective is to determine the possibility of predicting these differences using variables of dependency and analysis of the role of personality in that process. Method A sample of addicts comprises 252 males, aged between 19 and 25 years (average 23.3), with the length of dependency from 1 to 5 years. All subjects were convicted for robbery in the period 2007- 2010. year. Dependence and sexual dysfunction were determined using the forensic examination of psychiatrists, and evidence of personality traits using the psychologists expertise (based on the MMPI). Data collection was performed by analyzing of court cases in 2011 year. Testing the difference between groups was done by canonical discriminant analysis. Group of addicts with erectile dysfunction consists of 54 subjects (21.4%), and group of addicts without that dysfunction consists of 198 subjects (78.6%). Results The results obtained by analyzing the difference found out one canonical function, significant at the level of 0.001. Its canonical correlation is .430. This function is defined by four variables of dependency and two variables of personality traits. Conclusion Canonical function explains 18.5% of the variance of differences between analyzed groups. The direct impact and the ability to predict differences have: early onset of drug use, lack of addiction treatment, short periods of abstinence, taking of heroin and synthetic drugs and high hysteria. All of these variables affect in the direction of the occurrence of disorder. In the opposite direction operate the using of cocaine and paranoia.Uvod Zavisnost od droge je relativno čest razlog erektilne disfunkcije. Smatra se da je ovaj supstancama indukovani poremećaj posledica direktnih fizioloških efekata toksičnih supstanci. Cilj Predmet ovog rada je analiza uticaja varijabli zavisnosti i osobina ličnosti na razlike između grupa zavisnika sa i bez dijagnostifikovane erektilne disfunkcije. Cilj rada je utvrđivanje mogućnosti prognoziranja ovih razlika varijablama zavisnosti i analiza uloge osobina ličnosti u tom procesu. Metod Uzorak zavisnika čini 252 subjekta muškog pola, starih između 19 i 25 godina (prosek 23,3), sa stažom zavisnosti od 1 do 5 godina. Svi subjekti su osuđeni za razbojništva u periodu 2007-2010. godine. Zavisnost i seksualna disfunkcija utvrđeni su sudskim veštačenjem psihijatara, a osobine ličnosti veštačenjem psihologa (na osnovu testa MMPI). Prikupljanje podataka obavljeno je analizom sudskih predmeta 2011. godine. Testiranje razlika između grupa učinjeno je kanoničkom diskriminativnom analizom. Grupa zavisnika sa erektilnom disfunkcijom broji 54 (21,4%) ispitanika, a grupa bez te disfunkcije 198 (78,6%). Rezultati Analizom razlika dobijena je jedna kanonička funkcija značajna na nivou 0.001. Njena kanonička korelacija je reda veličine .430. Ovu funkciju definišu četiri varijable zavisnosti i dve osobine ličnosti. Zaključak Kanonička funkcija objašnjava 18,5% varijanse razlika između grupa koje su analizirane. Neposredan uticaj i mogućnost predviđanja razlika imaju: rani početak korišćenja droge, izostanak lečenja zavisnosti, kratki periodi apstinencije, unos heroina i sintetičkih droga i visoka histeričnost. Sve te varijable deluju u pravcu javljanja poremećaja. U suprotnom smeru deluju korišćenje kokaina i paranoidnost