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Search Results: 1 - 10 of 149 matches for " Stanojevi? Gorica "
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The classifications of atmospheric circulation
StanojeviGorica
Journal of the Geographical Institute Jovan Cvijic, SASA , 2010, DOI: 10.2298/ijgi1002027s
Abstract: The classifications of atmospheric circulation patterns are a specific research area within synoptic climatology. In general, there are three main groups of classifications: subjective, mixed and objective. In methodological aspect, the recent tendencies are presented in full objectification of classification procedure by mathematical-statistical methods. The classifications of atmospheric circulation are very useful tools in climate change research; for reconstruction of the past climate, analysis of variability of the present climate and in the estimates of future climate. The practical application is to produce weather forecasts in meteorology and for more specific purpose e.g. analysis of air quality, wind atlas, the studies of human health. There are many scientific and operational applications of classifications circulation types, but there is a lack of researches who deal with this issue in scientific literature in Serbia. Only in recent years, there are a few papers that explore the correlation between the climate variability in Serbia and the features of circulation types. .
Analysis of annual sums of precipitation in Serbia
StanojeviGorica
Journal of the Geographical Institute Jovan Cvijic, SASA , 2012, DOI: 10.2298/ijgi1202001s
Abstract: This paper analyses the series of annual sums of precipitation for 27 stations in Serbia for the period 1951-2010. The lowest average perennial precipitation values have been determined for stations in northern Serbia, that is, generally a reduction in precipitation is noticed from west to east of the country. Northeast, east, south and southeast show negative trend values, while a positive precipitation trend is confirmed for the rest of Serbia with the highest values in the west and southwest of Serbia. The advantage of applying the method of cumulative sums and the bootstrapping“ in the analysis of time series in relation to the method of linear trend has been emphasized. Periods when precipitation was below average or above average for the entire analyzed period were defined. Also, a spatial differentiation of change in precipitation for the period of 60 years in Serbia has been noticed. [Projekat Ministarstva nauke Republike Srbije, br. 47007]
Atmospheric circulation and the precipitation variability in Serbia for period 1949-2004
Duci? Vladan,Lukovi? Jelena,StanojeviGorica
Glasnik Srpskog Geografskog Dru?tva , 2010, DOI: 10.2298/gsgd1002085d
Abstract: In this paper we have analyzed the correlation between the atmospheric circulation and annual precipitation in Serbia for period 1949-2004. The data for frequency Hess-Brezowsky circulation forms and types were used as indicators of atmospheric circulation. Statistically significant coefficient of a negative sign is obtained for zonal and half-meridional form and a positive sign for meridional form. The strength of correlation is not uniform in the space. According to the multiple linear regression the contribution of atmospheric circulation in the variability annual precipitation of Serbia is 69%. Also, we analyzed the connection between the atmospheric circulation and the mean annual cloudiness. Comparing the results for this two climate elements we have concluded that they show different time-space development for same macrosynoptic conditions. Also, we can speak about the regional aspects of these processes. .
The changes of precipitation in Podgorica for period 1951-2010
Duci? Vladan,Buri? Dragan,Lukovi? Jelena,StanojeviGorica
Glasnik Srpskog Geografskog Dru?tva , 2011, DOI: 10.2298/gsgd1102051d
Abstract: The global warming and climate change are the actual and challenging topics. Recently there is one question, frequently asked: whether today's climate is changing? The studies of this issues are mainly related to the two the most important climatic elements - air temperature and precipitation amounts. We have done research about temperature variability for Montenegro and the main aim of this paper is analysis precipitation changes for station Podgorica (Montenegro) in the period of sistematic observation - are there changes, to what extent and whether they are significant. According to the results, acumulated precipitation do not show significant changes for annual and seasonal values in the period 1951-2010. The interannual variations of the precipitation (which are characterictic for this climate element) do not show increases in recent times. The component trend shows some changes, but statisticaly insignigficant. The previous results for precipitation conditions in Podgorica are not in accordance with the concept of Intergovermental Panel on Climate Change (IPCC) which predicted a general decerease in precipitation and increase variability on this area.
Climate change and river discharge: case study Kolubara River, Beli brod hydrological gauge
Buri? Dragan,StanojeviGorica,Lukovi? Jelena,Gavrilovi? Ljiljana
Glasnik Srpskog Geografskog Dru?tva , 2012, DOI: 10.2298/gsgd1201123b
Abstract: This paper analyzes climate change and its impact on river discharge. This issue is very well studied worldwide, but in Serbia so far has been poorly studied. The first part of the paper presents the views of two different opinions, those who favored anthropogenic impact on the increasing greenhouse effect, and those who say that this is due to natural factors. Most attention is paid to changes in temperature and precipitation patterns. Classification by the group of those who favor the promotion of natural phenomena is demonstrated through the analysis of river flow fluctuations in the hydrological gauge Beli brod located on Kolubara River.
Livedo Reticularis in a Patient with EBV Mononucleosis  [PDF]
Gorica Svalina, Sean Ochsenbein, J. Kelly Smith
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.52006
Abstract: A 23-year-old woman with serologically confirmed EBV mononucleosis presented with fever, exudative pharyngitis, periorbital and lid edema, cervical lymphadenopathy, and splenomegaly. Two weeks after the onset of symptoms she developed a generalized symmetrical reticular eruption of unbroken hexagons characteristic of livedo reticularis that resolved over several weeks as her condition improved. To our knowledge, this is the first reported case of livedo reticularis to occur in a patient with EBV mononucleosis.
Penalty method for fuzzy linear programming with trapezoidal numbers
Stanojevi? Bogdana,Stanojevi? Milan
Yugoslav Journal of Operations Research , 2009, DOI: 10.2298/yjor0901149s
Abstract: In this paper we shall propose an algorithm for solving fuzzy linear programming problems with trapezoidal numbers using a penalty method. We will transform the problem of maximizing a function having trapezoidal fuzzy number values under some constraints into a deterministic multi-objective programming problem by penalizing the objective function for possible constraint violation. Furthermore, the obtained deterministic problem will have only unavoidable inequalities between trapezoidal fuzzy numbers parameters as constraints.
Media use among young people in Serbia
Stanojevi? Dragan
Sociologija , 2012, DOI: 10.2298/soc1202369s
Abstract: The aim of this paper is to present how the electronic and print media have been used among the youth in Serbia. The analysis aims to show diverse modes of media usage in relation to the demographic and socio-economic characteristics of the youth, on the assumption that age, sex, residence, education, occupation, etc. influence the choice of media, the contents that young people prefer, as well as the amount of time spent on their usage. The issue that prompted our attention most is access to different types of media (print, television and internet) because the media also represent one of the key preconditions of social participation.
From subculture to scene and tribe: Post-Birmingham approaches to the relationship between youth, music and style
Stanojevi? Dragan
Sociologija , 2007, DOI: 10.2298/soc0703263s
Abstract: The paper discusses the so-called "post-Birmingham approaches" to analyzing the relationship between youth, music and style. Three especially pertinent theoretical approaches are presented: Sarah Thornton’s research based on the concept of "subcultural capital", the concept of "scene" developed by Keith Harris and Will Straw, and "neo-tribalism" borrowed from M. Maffesoli and applied to youth studies by Andy Bennett. All these concepts are based on a critique of subcultural theories conceived and elaborated at CCCS in Birmingham. The author stresses theoretical contributions of the new concepts and through critical insight argues that the notion of subculture is no longer capable of explaining contemporary social reality.
Removing Biases from Trainable MT Metrics by Using Self-Training
Milo? Stanojevi
Computer Science , 2015,
Abstract: Most trainable machine translation (MT) metrics train their weights on human judgments of state-of-the-art MT systems outputs. This makes trainable metrics biases in many ways. One of them is preferring longer translations. These biased metrics when used for tuning are evaluating different types of translations -- n-best lists of translations with very diverse quality. Systems tuned with these metrics tend to produce overly long translations that are preferred by the metric but not by humans. This is usually solved by manually tweaking metric's weights to equally value recall and precision. Our solution is more general: (1) it does not address only the recall bias but also all other biases that might be present in the data and (2) it does not require any knowledge of the types of features used which is useful in cases when manual tuning of metric's weights is not possible. This is accomplished by self-training on unlabeled n-best lists by using metric that was initially trained on standard human judgments. One way of looking at this is as domain adaptation from the domain of state-of-the-art MT translations to diverse n-best list translations.
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