2235 research outputs found
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An Overview of Environmental Impact of the Long-Term Mining, Ambient Dose Equivalent Rates in Urban Air and Remediation Proposals
No full textThe long-term operation of formerly the most important mining area in Europe, the “Trepča” facilities (Pb-Zn mine, Pb flotation and smelter, chemical industry, battery factory, Zn metallurgy), led to significant pollution of the urban environment of the nearest town Kosovska Mitrovica. Besides known chemical pollution due to mining processes, there is a radiological impact due to radionuclides present in air, soil and water. Preliminary, it can be established by the measurements of ambient gamma dose rates in air in urban, suburb and industrial parts of study area. About 39 locations were subjected to measurements of ambient dose equivalent rates by Geiger counter Radex model RD1503+, and spatial distribution maps were made based on GIS (Geographic Information System) methodology. The wide range of results (0.07–0.33 μSv/h) was discussed regarding a few aspects including influences of geology, mining and urban features. A long-term mining left serious consequences on environment and negative effects on health. Some solutions for remediation and reuse of abandoned landfills were proposed for a healthier future.Part of the book series: NATO Science for Peace and Security Series C: Environmental Security (NAPSC
Spatial-Functional Transformation of Military Brownfields on the Example of Sites in Sarajevo and East Sarajevo, Bosnia and Herzegovina
No full textIt is fact that almost all urban areas in Bosnia and Herzegovina had barracks and other military facilities or training grounds that over time acquired new functions or were still not valorized. The spatial analysis in the paper focused on the military brownfields of the capital and largest city of this country, which is divided by the entity border. That is precisely why were analyzed four examples of spatial-functional transformation of military brownfields in the area of Sarajevo in the Federation of Bosnia and Herzegovina and East Sarajevo in the Republic of Srpska. With a combination of field research, GIS, satellite and cartographic data sources, we obtained the results of spatial changes, the current state and functions of abandoned military facilities, as well as land. It was found that the largest number of buildings and especially land received a residential function, but also became an area for the construction and organization of university campuses or other public institutions. During the research were also found problems related to the reduction of green areas and the expansion of settlements, the unresolved issue of property-legal relations, the problem of housing refugees who are still using individual buildings for housing, etc. Although military bases are located in urbanized zones, the presence of unused (ruins) facilities was also established. Nevertheless, there are significantly more positive examples of the new purpose of these buildings and land, where we particularly highlight the sports and recreational role that improved and enriched life in both cities.Part of the book series: NATO Science for Peace and Security Series C: Environmental Security (NAPSC
Pupils' perception of the educational role of excursions in geography teaching
No full textObviousness in geography teaching is of great importance for the development of geographical thinking and reasoning. Excursions provide a good opportunity to apply the principle of obviousness by enabling experiential learning, development of critical thinking, social skills, personality, motivation, more engagement and better performance. The purpose of the study is to investigate whether pupils recognize the educational role of excursions. The results were obtained through statistical data analysis collected using a survey technique among pupils in the SPSS 26.0 program. A suitable sample consists of fifth to eighth grade pupils from a school in Niš and an elementary school in a rural settlement near Niš. Pupils perceive the educational role of excursions, but the full benefit that excursions can provide as a type of educational activity has not been realized due to the way they are conducted
Migracije kao faktor neravnomernog regionalnog razvoja pogranične oblasti Srbije
No full textMigracije stanovništva se odvijaju konstantno kako između država, tako i unutar država. U ovom radu dat je prikaz migracionog bilansa pograničnih opština i gradova Srbije. Ovaj rad ima višestruke ciljeve: utvrđivanje regionalnih razlika migracija između opština i gradova, uočavanje demografskih problema i problema regionalnog razvoja kao rezultat izraženih procesa emigracije iz pograničnih oblasti Srbije, izdvajanje uticaja migracionih procesa na promene broja stanovnika pogranične oblasti Srbije. Analiza migracija je od krucijalnog značaja za identifikovanje neravnomernog regionalnog razvoja pograničnih opština i gradova, ukazivanje na demografske promene uzrokovane njima i na predviđanje budućeg razvoja tih opština i gradova.Urednici: Tadija Đukić, Vladislav Marjanovi
Transformation of Abandoned Railways into Tourist Itineraries/Routes: Model of Revitalization of Marginal Rural Areas
Get PDFRailways that were once utilized by conventional speed trains but now lay technologically outdated and neglected are scarcely in use today, with many lying abandoned. These rail networks sprawl across vast areas, posing a substantial impediment to sustainable land use and management. Our research advocates for the adoption of tourist itinerary/route as a viable model for the transformation of abandoned railways into sustainable and functional systems. This innovative concept involves repurposing abandoned railways into tourist itineraries with the aim of utilizing them for tourism and commercial ventures. Recognizing a knowledge gap, particularly the absence of scientifically grounded models, on a selected case study (abandoned regional railway number 223 in the Toplica District, Serbia), we develop and present a model for the identification and Tourist Evaluation of Abandoned Railways (TEAR model). The defined model comprises a total of 27 sub-indicators categorized into four groups of indicators: natural tourist values (NV), anthropogenic tourist values (AV), tourist attractiveness of the railway (TA), and functional values (FV). The findings from the TEAR model suggest that the abandoned railway holds significant tourism value, with a rating of ≥0.7. Specifically, three sets of indicators—NV, AV, and TA—indicate a high level of tourist values (≥0.7), while FV falls within a moderate range of tourist values (0.4 ≤ V < 0.7). This endeavor not only supports sustainable local and regional development but also contributes to the enhancement of rural landscapes and the revitalization of rural areas. Importantly, this initiative aligns directly and indirectly with several Sustainable Development Goals (SDGs), thus fostering progress towards broader economic, societal, and environmental objectives
Spatial-temporal and trend analysis of traffic accidents in AP Vojvodina (North Serbia)
Get PDFThe objective of this study is to analyse the spatial-temporal patterns of traffic accidents using data from 2011 to 2020 for the AP Vojvodina. The spatial-temporal patterns of traffic accident hotspots were identified at the municipality level using the Getis–Ord Gi⁎ statistic in ArcGISPro software. Trends in traffic accidents were analysed using the Mann-Kendall (MK) statistic. A certain trend in the number of traffic accidents, fatalities, and injuries was detected in 15 out of 45 municipalities. In two municipalities, the trend in the number of traffic accidents is decreasing, while in seven, it is increasing. In three municipalities, a decreasing trend in the number of traffic fatalities was observed. A decreasing trend in traffic injuries was identi fied in five municipalities. Hotspot analysis on the number of traffic accidents and traffic injuries revealed hotspots in seven municipalities, while no hotspots were detected in the number of traffic fatalities. In the traffic casualties weighted number, persons in tractors, hotspots were identified in two municipalities. This research has the potential to enhance traffic safety by directing targeted safety measures towards identified hotspots. Such measures could ultimately lead to a reduction in traffic accidents, consequently curbing the number of both fatalities and injuries
Kritične mineralne sirovine i savremeni tehnološki razvoj: izazov za zelenu energetsku tranziciju
No full textPotražnja za kritičnim mineralima eksponencijalno raste kako se svet ubrzano tehnološki razvija i usmerava ka korišćenju i proizvodnji obnovljive i čiste energije. Za potrebe ublažavanja posledica klimatskih promena i udaljavanja od konvencionalnih fosilnih goriva, od suštinskog značaja je sve veće snabdevanje kritičnim mineralima koji imaju veliki ekonomski značaj, retki su, i u velikoj meri zavisni od uvoznog sektora. Ove mineralne sirovine predstavljaju ključne komponente za održivu budućnost sa niskom emisijom CO2 i neizostavan su resurs za razvoj širokog spektra savremenih tehnologija, kao što su npr. električna vozila, solarni paneli, vetroturbine, baterije, dronovi, vojna tehnika, i dr. Dugi niz godina, prerada mineralnih resursa bila je ključna za zadovoljenje industrijskih i društvenih potreba za energijom i metalima. U zelenoj energetskoj tranziciji koja se razvija, prioritet je ispunjavanje ne samo rastućih svetskih energetskih potreba, već i društvenih očekivanja nulte emisije CO2 do 2050. godine, ili ranije. Obnovljiva energija će igrati ključnu ulogu u postizanju zelene tranzicije, ali će za to biti potrebni kritični minerali.Urednici: Bogdan Lukić, Velimir Šećerov, Dejan S. Đorđević, Zoran Radosavljevi
Socioekonomska stratifikacija i urbano stanovanje u postsocijalističkom Beogradu
No full textU istraživanjima koja se bave pitanjima urbanog razvoja postoji snažna veza između socioekonomskog statusa i uslova stanovanja. Stambeni fond Beograda je heterogen i sadrži, osim novijih građevina, zgrade iz perioda od pre Drugog svetskog rata, naselja iz socijalističkog doba i neformalne građevine na periferiji. Postsocijalistički period karakteriše prelazak na tržišne mehanizme, povećanje udela privatnog vlasništva nad stambenim prostorom, a intenzivna stanogradnja, kao i demografski pritisci, značajno su oblikovali stambeni fond i rezidencijalnu segregaciju u Beogradu. Analiza podataka o obrazovanju i zanimanju stanovnika na nivou statističkih krugova iz prve dve decenije ovog perioda otkriva da socioekonomski status ima tendenciju opadanja od centra grada ka periferiji. Fundamentalne promene u stambenom sektoru, koje su nastupile u decenijama nakon kraha socijalizma, nisu dovele do drastičnog povećanja nivoa rezidencijalne segregacije, iako je evidentiran stabilan trend njegovog rasta
Primena GIS-a u analizi letova kompanije Air Serbia iznad teritorije Srbije u funkciji zaštite životne sredine
No full textIako je nebo iznad teritorije Srbije veoma prometno, kada je vazdušni saobraćaj u pitanju i da zbog toga može postojati značajan uticaj na životnu sredinu i zdravlje stanovništva od strane ovog vida saobaćaja, odnosno saobraćajnih sredstava, ovoj problematici se poklanja relativno malo pažnje, kako na nivou Republike Srbije, tako i na nivou lokalnih samouprava. U ovom radu su, primenom Geografskih informacionih sistema, analizirani letovi nacionalne avio-kompanije Air Serbia iznad teritorije Srbije, realizovani tokom septembra 2023. godine, na osnovu podataka preuzetih sa portala Flightradar24.com. Analiza je izvršena na nivou jedinica lokalne samouprave u Srbiji, kao i za polja dimenzija 10 x 10 kilometara na teritoriji Republike Srbije. Za svaku jedinicu lokalne samouprave i polje dobijeni su podaci o broju letova aviona kompanije Air Serbia iznad njihovih teritorija, kao i podaci o prosečnoj visini, brzini letova, zatim ukupnoj i prosečnoj dužini letova iznad teritorija jedinica lokalne samouprave i prosečnoj dužini letova po jedinici površine jedinica lokalne samouprave. Dobijeni podaci, zajedno sa podacima o letovima ostalih avio-kompanija tokom dužeg vremenskog perioda iznad teritorije Srbije, trebali bi da predstavljaju osnovu za sprovođenje odgovarajućih mera zaštite životne sredine, pre svega u cilju smanjena zagađenja vazuha i nivoa buke, kao i negativnih posledica po zdravlje ljudi.Urednici: Bogdan Lukić, Velimir Šećerov, Dejan S. Đorđević, Zoran Radosavljevi
Унапређивање географских курикулума за основне и средње школе – ко ако не ми?
No full textУ области образовања, процес развоја курикулума често укључује кључне заинтересоване стране, односно, наставнике, академске стручњаке и ученике. Ово истраживање је фокусирано на значај јавног учешћа у обликовању географских курикулума прилагођених основним и средњим школама. Ширим укључивањем наставника географије и академских стручњака у процес формирања курикулума може се успоставити свеобухватнији и квалитетнији образовни оквир. Циљ истраживања је сагледавање тренутног стања укључености свих заинтересованих страна и проналажење различитих метода и приступа за добијање повратних информација током развоја географских курикулума. Наглашава се важност сарадње и дијалога међу наставницима, академским стручњацима и ученицима како би се осигурало да курикулум одражава разнолике потребе, перспективе и искуства циљне групе. Резултати истраживања истичу улогу јавног учешћа у развијању осећаја власништва и улагања у образовни процес. Активним укључивањем заинтересованих страна у процесе доношења одлука везаних за развој курикулума, наставници могу да развију подржавајуће окружење за учење које оснажује ученике да активно учествују у савладавању географских знања. Закључно, овај рад заговара п артиципативни приступ развоју курикулума у географском образовању за основне и средње школе. Искоришћавањем колективног знања и увида наставника географије и професора са универзитета, као и поштовање мишљења ученика, можемо створити курикулуме који нису само академски ригорозни, већ и релевантни, занимљиви и одговорни према потребама ученика у данашњем брзо променљивом свету. На крају, у настојању да обликујемо следећу генерацију ученика са вишом географском писменошћу, укључивање и сарадња свих заинтересованих страна је неопходна.Уредници: Велимир Шећеров, Иван Раткај, Даница Шанти