2235 research outputs found
Sort by
GIS methods and analysis of archaeological layers in the Toplica district (Serbia)
Get PDFIn this paper, we are explaining a decade long investigation of historical, sacral and archaeological sites in the Toplica District (Serbia) as one of the significant cultural heritage sites in Europe with more than 226 objects with different time of origin. The survey was carried out for the purpose of better recognizing the archaeological potential. In science like archaeology, static objects, if not dynamized, remain unrecognizable to the general public, regardless of their historical and archaeological importance. Historical changes during the period of more than 7,000 years, with many sites of cultural heritage in this district, were recognized. Ordinary kriging was employed through Quantum Geographical Information System (QGIS) and System for Automated Geoscientific Analysis (SAGA). The positions of historical objects are registered, from the Neolithic period to modern times. With the help of GIS and geo-statistical methods, archaeological and historical layers can be rediscovered and better recognized. GIS algorithm ordinary kriging was used to complete the cultural heritage potential and archaeological valorization of the objects with geo-spatial dispersion. As a final product, we have obtained maps with historical and archaeological locations. For the first time, we used a scientific name for contour lines (archlines) with an equal number of archaeological units per density. In the end, archaeological and historical objects and their features were shown with the support of geographical and GIS methods
Duration of the Snow Cover and the Need for Artificial Snow—A Challenge for Management in Ski-Centres of Serbia
No full textThe production and use of artificial snow has become necessary in most ski centres in Europe. The lack of snow creates problems in ski centres that were built without the prior valuation of natural factors. The survey covered winter tourist centres in Serbia, which are facing problems due to the shortening of the tourist season caused by the lack of snow cover on the ski slopes. The duration of the snow cover is the result of several factors. Air temperature changes were analysed in mountain tourist centres in Serbia, as well as at undeveloped destinations with a potential for snow sports. On the basis of the quantitative indicators of the air temperature and the methodology by means of which snowmaking is carried out, the time periods during the year for making artificial snow are presented. Due to the forecast rise in air temperature, the issue of profitability of artificial snow in the ski centres of Serbia remains open
Књажевачки крај (источна Србија) у мрежи античких путева
No full textПотенцијали развоја читаве источне Србије, укључујући и књажевачки крај, пре две хиљаде година били су слични данашњим – планинско-котлински рељеф, ретка насељеност и важан транзитни положај. У римско доба ова територија је била централна област провинције Горње Мезије. Због важности географског положаја и минералних ресурса, плански се развијала путна мрежа и мрежа утврђења различитог ранга, којe су билe окосница просторне организације територије. Ови инфраструктурни системи били су предмет планирања још у античко римско и византијско доба, што се може закључити из сачуваних старих карата и списа, као што су Птолемејева карта из 2. века и Појтингерова карта из 3–4. века нове ере. У средњем веку услед геополитичких промена у приморју и у унутрашњости Балканског полуострва мењала се хијерархија центара моћи и у вези с тим мењала се мрежа путева и градова, али принцип географске инерције је деловао тако да те промене не буду нагле и будућност је увек на неки начин личила на прошлост. Инфраструктурни системи – путна мрежа и градови су модернизовани, прилагођавани потребама новог доба, али је њихов размештај остајао приближно исти. Циљ овога рада је да на основу факсимила старих карата, прикаже историјско-географске ритмове просторне организације територије источне Србије.Уредници: Микица Сибиновић, Владана Стојадиновић, Данијела Поповић Николи
Рецентне промене интензитета ерозије земљишта у сливу Белог Тимока – утицај природних услова и антропогеног фактора
No full textИнтензитет ерозивног процеса детерминисан је природним, али и антропогеним факторима. Промене интензитета ерозије земљишта разматране су са аспекта динамике и транспорта суспендованог наноса, као промена у продукцији наноса. Резултати Методе потенцијала ерозије показали су да је интензитет ерозије земљишта у сливу смањен за 25%. Резултати праћења проноса суспендованог наноса показали су тренд његовог смањења, при чему просечно смењење износи 1.660 t/год., односно 0,77 t/km2/год. Највећи пронос суспендованог наноса је у периоду фебруар–мај када се транспортује 65% сумарног годишњег проноса, при чему само април учествује са 32%. Анализа унутаргодишње расподеле протицаја, концентрација суспендованог наноса и проноса суспендованог наноса указали су на постојање хистерезис петље типа осмице.Уредници: Микица Сибиновић, Владана Стојадиновић, Данијела Поповић Николи
Kulturne atrakcije Beograda u fokusu turističke ponude
Get PDFThe study presents the touristic offer and demand for cultural attractions of Belgrade, on the basis of the results of the questionnaire survey, i.e., attitudes of surveyees. The aim of the study is to establish hierarchical order of cultural attractions of Belgrade, attributes and factors of attractiveness, as well as of other content necessary for comprehensive consideration of touristic offer. Program package for statistical processing and analysys IBM Statistics 20 was used for obtaining results. Results of the research are supposed to demonstrate whether the biggest importance among cultural attractions of Belgrade belongs to art, ambient units, sacral objects, the fortress, museums or events, historical, artistic, esthetic value or authenticity, and also to indicate to the importance of factors and the content of offer, necessary in formation of touristic product.U radu su prikazane turistička ponuda i tražnja kulturnih atrakcija Beograda, na osnovu rezultata anketnog upitnika, tj. stavova ispitanika. Cilj rada je da se utvrdi hijerarhijski redosled kulturnih atrakcija Beograda, atributa i faktora atraktivnosti, kao i ostalih sadržaja neophodnih za celovito sagledavanje turističke ponude. Za dobijanje rezultata korišćen je programski paket za statističku obradu i analizu IBM Statistics 20. Rezultati istraživanja treba da pokažu da li među kulturnim atrakcijama Beograda najveći značaj za posetioce imaju zabava, ambijentalne celine, sakralni objekti, tvrđava, muzeji ili događaji, istorijska, umetnička, estetska vrednost ili autentičnost, a takođe i da ukažu na važnost faktora i sadržaja ponude, neophodnih u formiranju turističkog proizvoda
Starenje u Srbiji - percepcije i iskustva lica u domovima za stare
Get PDFPopulation ageing in Serbia has pervading effect on many societal spheres. Paradigm of active ageing highlights the importance for older to lead healthy and productive life. The aim of this paper is to explore active ageing practices of institutionalised older citizens considering their sociodemographic characteristics and migration background. Semi-structured interview, as a qualitative research method was used to grasp perceptions and experiences of 27 older residents in nursing homes regarding adjustment in later life and daily activities. Additional valuable insight on topic was gained from institutional social workers. According to the results, the routine of daily living of the elders varies depending on individual abilities, preferences, health, marital status and migration history. The findings suggest that institutional setting does not have to represent barrier to active ageing, with implications for further research and practice.Starenje stanovništva u Srbiji je proces sa izraženim uticajima na različite društvene sfere. Paradigma aktivnog starenja naglašava koliko je značajno da stariji stanovnici vode zdrav i produktivan život. Cilj rada je da se istraži praksa aktivnog starenja institucionalizovanih starijih lica, uzimajući u obzir njihove sociodemografske karakteristike i migracionu istoriju. Kao kvalitativna istraživačka metoda korišćen je polustrukturirani intervju, kako bi se otkrila iskustva i stavovi 27 starijih ispitanika smeštenih u staračkim domovima po pitanju njihovih dnevnih aktivnosti i prilagođavanja na proces starenja. Vredne uvide u temu dala su i zapažanja socijalnih radnika zaposlenih u ovim institucijama. Prema rezultatima istraživanja, dnevna rutina starijih zavisi od njihovih ličnih sposobnosti, zdravstvenog i bračnog statusa kao i migracione istorije. Nalazi ukazuju da institucionalni okvir ne mora da predstavlja kočnicu za aktivno starenje, što može biti od značaja za moguće pravce daljih istraživanja ali i odgovarajuće politike i mere
Patient comfort level prediction during transport using artificial neural network
No full textSince patient comfort during transport is a matter of paramount importance, this paper aims to determine the possibilities of applying neural networks for its prediction and monitoring. Specific objectives of the research include monitoring and predicting patient transport comfort, with subjective assessment of comfort by medical personnel. An original Android application that collects signals from an accelerometer and a GPS sensor was used with the aim of achieving the research goals. The collected signals were processed and a total of twelve parameters were calculated. A multilayer perceptron was created in the proposed research. The evaluation results indicate acceptable accuracy and give the possibility to apply the same model to the next patient transport. The root mean square error was 0.0215 and the overall confusion matrix prediction accuracy was 90.07%. Moreover, the results were validated in real usage. The limitations and future work are highlighted
Assessment of the impact of depopulation on soil erosion: case study - Republika Srpska (Bosnia and Herzegovina)
Get PDFSoil erosion is one of the most significant environmental problems in the Republika Srpska / Bosnia and Herzegovina. The 1992-1995 civil war left serious consequences, and together with the depopulation process in the last few decades, it had a significant impact on the intensity of erosion. Depopulation of the Republika Srpska (RS) is evident from the 2013 B&H population and housing census. The results showed that there are 400,846 fewer inhabitants in the RS, and of the total number of settlements, 88.01% are depopulated. The Erosion Potential Method (EPM) was used to map soil erosion and calculate annual gross erosion in the RS. This showed an evident decrease in erosion intensity throughout most of the Entity. This research is an attempt to assess the depopulation impact on soil erosion intensity and gross erosion in the RS using the Erosion Potential Method and statistical analysis. Statistical analysis of 44 municipalities in the RS revealed a significant regression relationship between a decrease in sediment production and a decrease in population. The linear regression coefficient in these municipalities ranged from 0.72 to 0.95, and the coefficient of determination ranged from 0.52 to 0.91. The regression analysis included 1,248 settlements in the RS where there was a change in sediment production and in the population. The Pearson Correlation Coefficient for these settlements is 0.79, while the coefficient of determination for the observed variables is 0.63. This methodological approach represents a good basis for future research, and for all integrated water management projects, soil protection, forest ecosystems and environmental protection, spatial planning, agriculture and other human activities
Capacities and energy potential of thermal-mineral springs in the area of the Kopaonik tourist region (Serbia)
No full textIn the Kopaonik tourist region of Serbia, there are numerous thermal-mineral (TM) springs with an outlet temperature which ranges from 21 to 78.7 degrees C. The main objective of the study is to determine the capacities, thermal power and energy potential of 19 TM springs in 4 spas of this region. This study supports the hypothesis that in the Kopaonik tourist region, TM springs have considerable capacity, as well as heat power and energy potential. The modern method for determining the energy potential and heat power, based on the flow rate, the inlet and outlet temperatures of the TM springs, was applied in the region with rich geothermal sources, and the obtained results were converted to the fossil fuel energy. The research of the given region, using the above method, is more detailed than the previous research carried out at the national level, so the results are more reliable and suggest that similar research should be carried out at the regional and local level. The estimated total heat energy is 758.51 TJ/year, and heat power (capacity) is 24.1 MWt. The TM springs of this region make up 9.06% of the estimated geothermal energy of Serbia and 7.53% of the estimated heat power. The total energy of this region is equivalent to 210697222.3 kW/h (210.7 GWh) or 18116.7 toe and represent significant energy saving potential. The results indicate the possibility of direct use of energy from TM spring and replacement of fossil fuels, which reduces CO2 emissions and positively affects the quality of the environment. The use of geothermal energy will reduce heating costs and ensure electricity supply due to the growing need for it