INVESTIGATION OF SOLAR INFLUENCE ON THE TERRESTRIAL PROCESSES: ACTIVITIES IN SERBIA

In this contribution, we have summarized the current stage and perspective of cooperation between different scientific institutions in Serbia in the field of the investigation of the solar influences and effects on our planet. These activities involved 14 researchers from 7 institutions. The investigations are based on experimental, theoretical and numerical work and results are published in numerous papers in respected international journals. In order to make better connection and coordination of relevant activities in Serbia with international tendencies in this research field researchers participate in several international projects and programs. Bearing in mind the importance of the Sun's impact on our planet, the lives of people as well on modern technologies the general impression is that it is necessary to improve the existing infrastructure and increase the number of involved scientists. This study aims to present the current tendency of integrating contemporary research, people and technology in our country, in order to establish cooperation with other relevant groups and individuals

A contribution to the study of the influence of the energy of solar wind upon the atmospheric processes

According to the satellite observing of solar wind, and as well according the development of certain weather conditions it is realized that their interactive connections could have important role on the development of atmospheric processes. In this paper is given several of such situations. We have tried to point to a very important significance of new methodological approach in understanding development of meteorological conditions. Researching the influence of the solar wind on the changes of conditions in the atmosphere could develop in several ways but in any case for the further steps a multidiscipline approach is needed. Karen Labitske in Germany has done a lot of research in this area. "The physics is still highly speculative at this point though"

Successful treatment of polymedicamentous poisoning with metoprolol, diltiazem and cilazapril

Introduction. Poisoning caused by drugs with cardiodepressive effects is an urgent condition in medicine which is associated with high mortality rate regardless of modern therapeutic methods. Accidental or intentional poisoning whit these drugs produces heart activity depression and cardiovascular collapse as consequences. Current therapy for severe poisoning caused by beta-blockers and calcium channel blockers includes both unspecific and specific antidote therapy whit glucagon, as well as application of adrenergic drugs, calcium, phosphodiesterase inhibitors and hyperinsulinemia/euglycemia therapy. However, even whit the application of these drugs, prompt measures of unspecific detoxication therapy and cardiopulmonary reanimation are crucial for survival of patients with severe poisoning. Case report. A 28-year-old female patient was hospitalized for cardiogenic shock and altered state of conscioussnes (Glasgow coma score = 4), caused by acute poisoning with 2 g of metoprolol (Presolol®), 1.8 g of diltiazem (Cortiazem®) and 50 mg of cilazapril (Zobox®). Prolonged cardiopulmonary resuscitation was applied during the first 16 hours of hospitalization, including administration of crystaline solutions (8 L), 17 mg of adrenaline, 4 mg of atropine, 4 mg of glucagone and 1.6 g of dopamine, with electro-stimulation by temporary pacemaker and mechanical ventilation. In a defined time period, normalized state of consciousness was registered, mechanical ventilation was stopped and normal heart activity and hemodynamic stability were accomplished. During hospitalization the patient was treated for mild pneumonia and after ten days, completely recovered, was released and sent to home treatment. Conclusion. Prompt measures of cardiopulmonary resuscitation and multidisciplinary treatment in intensive care units significantly increase the chances of complete recovery of a patient with severe poisoning caused by drugs with cardiodepressive efects

Climate changes instead of global warming

Air temperature changes on Earth in recent years are the subject of numerous and increasingly interdisciplinary research. In contrast to, conditionally speaking, generally accepted views that these changes are conditioned primarily by anthropogenic activity, more results appear to suggest that it is dominant natural processes about. Whether because of the proven existence of areas in which downtrends are registered or the stagnation of air temperature, as opposed to areas where the increase is determined, in scientific papers, as well as the media, the increasingly present is the use of the term climate changes instead of the global warming. In this paper, we shall try to present arguments for the debate relating to the official view of the IPCC, as well as research indicating the opposite view

Modelling of Carrying Capacity in National Park – Fruška Gora (Serbia) case study

Negative effects of tourism development in a destination are usually the consequence of the high concentration of tourists, accommodation facilities and the activities that are practiced in a relatively restricted area. One of the most important measures to protect the areas is to calculate the maximum number of tourists that can simultaneously reside in a region, i.e. the determination of the carrying capacity. This paper outlines a method for determining carrying capacity based on zoning of environmental resources and zoning within a region. The paper argues for a return to the idea of identifying maximum appropriate number of users. The main hypothesis of the paper is based on the statement that the development of tourism in Fruška Gora (Mountain) National Park in Northern Serbia must be in accordance with the basic principles of sustainability, including the determination of carrying capacity. The main research goal was to show the opinion of local residents about the uncontrolled development of tourism, and to determine the carrying capacity in four sports and recreational zones of the mountain. The carrying capacity of the area is calculated by Lavery and Stanev formulas

Can the Quality of Hospitality Services Play a Role in Sustainable Equestrian Tourism in Slovenia? Mediations, Effects, and Implications

This study investigates the relationship between the quality of hospitality services and sustainable equestrian tourism development in Slovenia. The focus will be on the relations between equestrian tourism motivations, hospitality services quality, overall service quality, equestrian tourists’ satisfaction, and behavioral intentions. The target population was equestrian tourists who stayed in one of 30 tourism farms in Slovenia and used both accommodation and food and beverage services. Face-to-face surveys with convenience sampling were used for the data collection. The results show that equestrian tourism motivations are positively associated with both hospitality services quality and the overall service quality in equestrian tourism. Moreover, the overall service quality in equestrian tourism is positively related to equestrian tourists’ satisfaction, while equestrian tourists’ satisfaction is positively related to behavioral intentions. In addition, accommodation service quality and food and beverage service quality both mediate the association between equestrian tourism motivation and overall satisfaction. The study provides both theoretical and practical implications. For one thing, it fills the research gaps present in the literature. In addition, it gives practical guidelines to farmers and tourism practitioners regarding equestrian tourism development as one of the popular areas of sustainable tourism development in rural settings

Estimation of photovoltaic power generation potential in Serbia based on irradiance, air temperature, and wind speed data

This study is devoted to the research of spatial-temporal variation of electricity generation from the kilowatt-peak photovoltaic system made of crystalline silicon solar cells. The research was conducted in the territory of Serbia using the model for estimation photovoltaic performances as a function of incident irradiance and module temperature. Preparation of input data and calculation of the final results was done within the geographical information system. Some of the required raster data, like solar irradiance and wind speed, were already available, while air temperature raster was created from discrete set of observed data using the regression-kriging model. Obtained results were presented in the form of raster maps that enabled further analysis and discussion about new findings. The analysis of seasonal variations reveals that during spring and summer months photovoltaic systems are producing up to 70% of total annual electricity yield. In terms of the spatial distribution, the most promising areas for electricity generation are located in the south part of Serbia and along main river valleys. In addition, discussion part addresses the issue of data imperfection caused by the accuracy of the selected model, as well as quality and availability of data series

REMOTE SENSING ROLE IN ENVIRONMENTAL STRESS ANALYSIS: ЕАST SERBIA WILDFIRES CASE STUDY (2007–2017)

Wildfire has been one of the most dangerous environmental stressors nowadays. It is an important disturbance where ecosystem biomass is burned and where organisms are damaged or killed by fire. Therefore, the detecting and monitoring of this stressor are of great importance. During last decades, extensive forest fires have spread in Southern Europe, and they are registered in Serbia as well. During year 2007, several significant fires were registered in Stara Planina and Svrljiške Planine Mountains. The aims of this study were to detect land cover changes for the studied site from 2007–2017, to focus on monitoring the area affected by the wildfire, and to analyse the environment response to stressor. The study area is situated in East Serbia, partially covering the Mountains Stara Planina (western part) and Svrljiške planine (eastern part). The remote sensing techniques were used in the analysis and main satellite data were obtained via USGS Earth Explorer application. Six different classes were selected: Water, Forest, Pastures, Artificial area, Agriculture, and Bare soil. Results showed significant changes in two classes, Forest, and Pastures — the forest spread for more than 20% at the expense of pasture, which decreased more than 23%

The influence of solar activities on occurrence of the forest fires in south Europe

In mid-July 2012, hundreds of fires spread over forest stands in the south of Europe. Considering available satellite and meteorological data we have tried to determine a method using analogy, whether these fires were preceded by the intensified solar activity. The justification of this approach lies in the belief that it is impossible by direct or indirect activity of man to set fire at the same time to the sites that are geographically separated. In this paper we have tried to test the hypothesis claiming that charged particles coming to us from the Sun may be responsible for the number of forest fires. Unlike some other situations when the potential explanation could be a sudden influx of the protons of different energy ranges, in our study, there are electrons as carriers of the potential explanation. Many previous studies results have shown that there is statistically significant relationship between the processes on the Sun and certain movements of air masses in the atmosphere our planet. The presented results in this paper of the correlation relationships between the mean hourly flows of electrons and the mean hourly air temperatures in Belgrade and Rome and the analysis of the synoptic situation as a function of the suggested model so far, indicate that the number of fires that were occurring more than a week, from July 15, 2012, in the south of Europe, were caused by electrons coming from the Sun

DEEP Learning LSTM recurrent neural network for consequence forecasting of the solar wind disturbance

This conference was held from 10 to 13 May in Petnica Science Centre, City of Valjevo