„SMART BUILDINGS” HOUSING AND ECONOMY

Expensive imported energy products (liquid fuels and gas) and the need for energy independence, direct us towards a strategy of increased use of renewable energy sources. Energy independence of one country can be read in the percentage of renewable energy sources (geothermal water, wind, water, hydropower, biomass, solar energy), compared to the amount of energy that is imported (liquid fuels and gas). In developed European countries, renewable energy sources make up 10 - 12% of the total energy balance, with us - just 1%. Environmental awareness obliges us to think about living in harmony with nature, using technologies that do not threaten the planet. If you would like to save a life on earth, must change the way of life and the way of construction. Inadequate access to jobs, is one of the most important contributions to global warming of the planet. Neanderthal Man is an intuitive built in harmony with nature. Technical and technological advances of civilization has brought the design and construction of the exhaust of fossil fuels, accumulate un-recyclable materials, improve emissions and alienate man from nature. For designers and investors is to develop, design and build „green”

THE FUNCTIONING OF THE CAPITAL MARKET IN MODERN CONDITIONS

Financial markets are the lifeblood of the global economy where changes in one part of the world quickly and violently, like waves, spread and affect every country, company and individual. This is most clearly manifested in the great world economic crisis that began precisely on the US financial market, that is where the market is most developed, and extended to all other countries. Financial markets in the modern world are associated with the other segments of the world economy. To understand the phenomenon and fluctuations based on this exhibit, today more than ever necessary to monitor the total change, not only in in economy but also in all other segments of society. One of the causes of the financial crisis lie precisely in the fact that innovations in financial markets reached a situation in which they are out of control. The global economic crisis in a relatively short period of time has led, however, a dramatic fall in the stock market, bringing down share prices and companies which are economic parameters resisted the crisis, but could not resist the psychology of mass spreading panic and fear of investors. Institutional investors are the most important creators and participants in financial markets, and will therefore study their role to be given special attention

FUNCTIONING OF FINANCIAL AND CAPITAL MARKETS IN MODERN CONDITIONS

Abstract: Financial markets are the lifeblood of the global economy where changes in one part of the world quickly and violently, like waves, spread and affect every country, company and individual. This is most clearly manifested in the great world economic crisis that began precisely on the US financial market, that is where the market is most developed, and extended to all other countries. Financial markets in the modern world are associated with the other segments of the world economy. To understand the phenomenon and fluctuations based on this exhibit, today more than ever necessary to monitor the total change, not only in in economy but also in all other segments of society. The complexity of the mechanisms of financial markets, the large number of participants, the importance of regulation and supervision, but high profits and high risks, so that the understanding of financial markets today are more complex than ever before

Predatori i parazitoidi Cacopsylla pyri (L.) (Hemiptera: Psyllidae) u Srbiji

The presence of C. pyri and its natural enemies was studied in both treated and untreated pear orchards in Serbia from 2005 to 2009. Five parasitoid and 21 predator species were identified as present on a considerable number of sites. The following parasitoid species were found: Prionomitus mitratus (Dalman), Psyllaephagus procerus Marcet, Syrphophagus ariantes (Walker), Syrphophagus taeniatus (Förster) and Tamarixia sp. In the study, the species Psyllaephagus procerus, Syrphophagus ariantes and Tamarixia sp. were for the first time identified as parasitoids of C. pyri and as new species in the Serbian fauna. Among the parasitoids determined, Prionomitus mitratus predominated. Of the predators, the following species in four orders were registered: Dermaptera [Forficula auricularia Linnaeus (Forficulidae)], Heteroptera [Anthocoris nemoralis (Fabricius), Anthocoris nemorum (Linnaeus), Orius (Heterorius) minutus (Linnaeus), Orius (Heterorius) niger Wolff (Anthocoridae), Campylomma verbasci (Mayer-Dür), Deraeocoris (Deraeocoris) ruber (Linnaeus) and Deraeocoris (Knightocarsus) lutescens (Schilling) (Miridae)], Neuroptera [Chrysopa pallens Rambur, Chrysoperla carnea (Stephens), Chrysopa sp. (Chrysopidae)], and Coleoptera [Coccinella septempunctata Linnaeus, Adalia bipunctata Linnaeus, Adalia decempunctata (Linnaeus), Hippodamia tredecimpunctata (Linnaeus), Hippodamia variegata (Goeze), Propylea quatuordecimpunctata (Linnaeus), Calvia (Anisocalvia) quatuordecimguttata (Linnaeus) (Coccinellidae), Cantharis rustica Fallén, Rhagonycha fulva (Scopoli) and Rh. testacea (Linnaeus) (Cantharidae)]. Of the predators determined, 12 species were registered for the first time as predators of C. pyri in Serbia, while C. rustica, Rhagonycha fulva and Rh. testacea have so far been known neither in Serbia nor in the world as predators of pear suckers.U periodu od 2005. do 2009. godine u tretiranim i netretiranim zasadima kruške u Srbiji proučavano je prisustvo C. pyri i njenih prirodnih neprijatelja. Na većem broja lokaliteta je utvrđeno prisustvo pet vrsta parazitoida i 21 vrsta predatora. Od parazitoida, utvrđene su vrste Prionomitus mitratus (Dalman), Psyllaephagus procerus Marcet, Syrphophagus ariantes (Walker), Syrphophagus taeniatus (Förster) i Tamarixia sp. Vrste Psyllaephagus procerus, Syrphophagus ariantes i Tamarixia sp. su ovim istraživanjima prvi put utvrđene kao parazitoidi C. pyri, i kao nove vrste u fauni Srbije. P. mitratus je u Srbiji prvi put utvrđen kao parazitoid C. pyri i najčešće nalažena vrsta. Od predatora, registrovane su vrste iz četiri reda: Dermaptera [Forficula auricularia Linnaeus (Forficulidae)], Heteroptera [Anthocoris nemoralis (Fabricius), Anthocoris nemorum (Linnaeus), Orius (Heterorius) minutus (Linnaeus), Orius (Heterorius) niger Wolff (Anthocoridae), Campylomma verbasci (Mayer – Dür), Deraeocoris (Deraeocoris) ruber (Linnaeus), Deraeocoris (Knightocarsus) lutescens (Schilling) (Miridae)], Neuroptera [Chrysopa pallens Rambur, Chrysoperla carnea (Stephens), Chrysopa sp. (Chrysopidae)], Coleoptera [Coccinella septempunctata Linnaeus, Adalia bipunctata Linnaeus, Adalia decempunctata (Linnaeus), Hippodamia tredecimpunctata (Linnaeus), Hippodamia variegata (Goeze), Propylea quatuordecimpunctata (Linnaeus), Calvia (Anisocalvia) quatuordecimguttata (Linnaeus) (Coccinellidae), Cantharis rustica Fallén, Rhagonycha fulva (Scopoli) i Rh. testacea (Linnaeus) (Cantharidae)]. Među utvrđenim predatorima, 12 vrsta su prvi put registrovane kao predatori C. pyri u Srbiji, dok Cantharis rustica, Rhagonycha fulva i Rh. testacea do sada nisu bile poznate kao predatori kruškine lisne buve ni kod nas ni u svetu

ACCIDENT PREVENTION IN SEVESO FACILITIES: EXAMPLE OF THE COPPER FLOTATION PLANT IN BOR

In the near future, sustainable development of mining will inevitably be included in the raising of ecological awareness. When Serbia joins the EU, the mining industry will have to abide by European ecological standards and legislation, with which it is currently in the process of harmonization. This will primarily protect the population living in mining areas from large-scale accidents, as well as from the existing pollution sources. Pollution of the town of Bor began more than a century ago when industrialist Đorđe Vajfert was granted the excavation concession, as he hoped he would find gold there. Instead, he found copper, which was first extracted by the French. Since then, the development and survival of the town have depended on copper mining, which necessarily degraded the environment. For the purpose of harmonizing the environmental legal regulation of current copper production and, above all, reducing the risk of large-scale accidents, the Centre for Occupational and Environmental Risk Management of the Faculty of Occupational Safety in Niš has prepared the Report on the Safety of Flotation Plant Bor at the request of Copper Mine Bor, a subsidy of RTB Bor (Mining and Smelting Complex Bor). The Report is essentially a study defining the operation objectives and principles of Seveso facility operators for risk control against chemical accidents. The purpose of this study was to improve the implementation of accident prevention principles at the Flotation Plant Bor. This paper presents the parts of the study that pertain to prescribed preventive procedures and measures against accidents due to hazardous materials that are present during flotation. It covers the following aspects: facilities; equipment; piping; machinery; tools; repositories; flotation tailings pond; analysis and assessment of the effectiveness of the system of occupational safety and fire and explosion safety; assessment of impact on employees, the surrounding population, and buildings, and the possible harmful environmental impact; assessment of unwanted event incidence; and calculations of vulnerable zones

Use of the sulfide minerals pyrite and chalcopyrite as electrochemical sensors in non-aqueous solutions. The potentiometric titration of weak acids in alcohols

Natural monocrystalline pyrite and chalcopyrite were examined as new indicator electrodes for the potentiometric titration of weak acids in tert-butanol and iso-propanol. The electrodes investigated demonstrated a linear dynamic response for p-toluenesulfonic acid concentrations in the range from 0.1 to 0.001 M, with a Nernstian slope of 48 mV per decade for pyrite in tert-butanol. Sodium methylate, potassium hydroxide and tetrabutylammonium hydroxide (TBAH) proved to be suitable titrating agents. The response time was less than 12 s and the lifetime of the electrodes was higher than 1 year. The advantages of the electrodes are long-term stability, rapid response, reproducibility, easy preparation and low cost

Coulometric generation of H+ ions by the anodic oxidation of esters of gallic acid

The application of esters of gallic acid (propyl, butyl and dodecyl gallate) for the coulometric generation of H+ ions in aqueous media is described. The currentpotential curves recorded for these depolarizers, as well as for tris(hydrosymethyl) aminomethane (THAM) and the employed solvent showed that the investigated depolarizes are oxidized at potentials lower than the oxidation potentials of the other components in the solution. The H+ ions formed by the oxidation of these depolarizers (in 1 mol/L sodium perchlorate in water) were used for the titration of THAM with potentiometric end-point detection using a hydrogen/palladium indicator electrode. The current efficiency was 100 %

Synthetic circuits reveal how mechanisms of gene regulatory networks constrain evolution

Phenotypic variation is the raw material of adaptive Darwinian evolution. The phenotypic variation found in organismal development is biased towards certain phenotypes, but the molecular mechanisms behind such biases are still poorly understood. Gene regulatory networks have been proposed as one cause of constrained phenotypic variation. However, most pertinent evidence is theoretical rather than experimental. Here, we study evolutionary biases in two synthetic gene regulatory circuits expressed in Escherichia coli that produce a gene expression stripe-a pivotal pattern in embryonic development. The two parental circuits produce the same phenotype, but create it through different regulatory mechanisms. We show that mutations cause distinct novel phenotypes in the two networks and use a combination of experimental measurements, mathematical modelling and DNA sequencing to understand why mutations bring forth only some but not other novel gene expression phenotypes. Our results reveal that the regulatory mechanisms of networks restrict the possible phenotypic variation upon mutation. Consequently, seemingly equivalent networks can indeed be distinct in how they constrain the outcome of further evolution.We thank Elke Karaus Wyer for carrying out preliminary experiments and Joshua L. Payne for critical reading. We thank the Sanger Sequencing team from Microsynth for their support. YS, JMD and LM acknowledge support by the Swiss National Science Foundation (PZ00P3‐148235 and 31003A_175608 to YS); AW acknowledges support by Swiss National Science Foundation grant 31003A_146137, by ERC Advanced Grant 739874, by an EpiphysX RTD grant from SystemsX.ch and by the University Priority Research Program in Evolutionary Biology at the University of Zurich. MI is funded by a Wellcome Trust UK New Investigator Award (WT102944) and by the Volkswagen Foundation. AJ and JS acknowledge the Spanish Ministry of Economy, Industry and Competitiveness (MINECO), BFU2010‐16428, the European Union's Horizon 2020 research and innovation program under Grant Agreement No. 670555, the European Union Seventh Framework Program (FP7/2007‐2013) under grant agreement 601062; the Spanish Ministry of Economy, Industry and Competitiveness “Centro de Excelencia Severo Ochoa 2013–2017”, SEV‐2012‐0208 and the Cerca Programme/Generalitat de Catalunya

Recognizing the Frequency of Exposure to Cyberbullying in Children: The Results of the National HBSC Study in Serbia

Nowadays, children are able to enrich their reality via the Internet. Unfortunately, this may increase their risk of becoming victims of cyberbullying. We analyzed the health characteristics and risk behavior of two cohorts of children in Serbia; those who reported being exposed to cyberbullying and those who did not. The statistical differences and logistic regression models were applied to the data on 3267 students collected from 64 schools participating in the 2017 Serbian Study on health behavior in school-age children (HBSC). Children exposed to cyberbullying reported having the following health problems on a daily basis: headache (18.5%), back pain (19.5%), depression (21.6%), irritability or bad mood (17.7%), nervousness (16.0%), sleep problems (16.1%), and dizziness (21.2%). As for the different types of risk behavior, cigarette smoking ranging from six to nine days ever was the most prevalent (26.9%). It was followed closely by getting drunk more than 10 times ever (24.1%). Compared to non-victims, victims were found to be at a higher risk of perceived back pain (OR = 2.27), depression (OR = 1.43), irritability or bad mood (OR = 2.07), nervousness (OR = 2.23), and dizziness (OR = 2.43) as well as being injured once or twice (OR = 1.98) or three or more times (OR = 4.09). Victims were associated with further risk factors: having smoked more than five cigarettes ever in life (OR = 1.73) and having gotten drunk two to three times (OR = 1.71) or four or more times (OR = 1.65). As the number of school-age children using social media continues to rise, we must prioritize educating them about self-help and community resources for addressing related health issues with greater speed and intensity. The findings from Serbia suggest that while children may be aware of their health issues, they may be unaware of their link to cyberbullying, which could hinder their ability to address these issues promptly. The respondents’ attention to the health implications of cyberbullying could be increased by reformulating the survey questions used in the HBSC study