474 research outputs found

    Systematic framework and measures of economic policy in function of Serbian agriculture improvement requirements

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    One of the most significant economic activities in Serbia is agriculture, which also represents the base for food industry and some other branches of processing industry. In this field Serbia finds its developmental opportunity in future period. Inclusion of the country in EU, as well as in the World Tourist Organization, implies appropriate preparation and qualification in this field, so there could be more successful deal with rising competitiveness of foreign goods, in conditions of increasing liberalization level of foreign trade. Therefore, domestic regulatory rules must be adjusted to EU regulatory rules, like as concrete measures regarding agriculture and rural development improvement must be adjusted to the measures in the Joint EU Agrarian Policy. Serbian agriculture is in quite bad condition, and financial possibilities of the state, to expedite its development by abundant assets, are still insufficient. In terms of recession, caused by world economic crisis, too, incentive assets reduce, while making business in this field become more and more aggravated. This paper points out, in short, to significance and condition of agriculture in Serbia, on regulatory rules and future plan documents important for this field, as well as on concrete measures, which have to be undertaken in order to improve this activity.agricultural production, legislature in the field of agriculture, developmental documents, rural development, incentive measures.

    THE ROLE OF THE EUROPEAN RESEARCH NETWORKS IN RURAL DEVELOPMENT

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    The present paper intends to present “a short history” of a young research network established a few years ago. The network has already a European cover and impact. Its activity was very intense and the results over expectations. Moreover, the cohesion among members makes possible the development of the activity for the future. By this article we want to give an example of a “good practice” in this field. Could be an example for other networks, institutes, research centres and researcher of how an idea can become reality.Europe, Networks, Rural Development, Experience, Agribusiness, Community/Rural/Urban Development, Labor and Human Capital, Teaching/Communication/Extension/Profession,

    Impacts of ocean albedo alteration on Arctic sea ice restoration and Northern Hemisphere climate

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    The Arctic Ocean is expected to transition into a seasonally ice-free state by mid-century, enhancing Arctic warming and leading to substantial ecological and socio-economic challenges across the Arctic region. It has been proposed that artificially increasing high latitude ocean albedo could restore sea ice, but the climate impacts of such a strategy have not been previously explored. Motivated by this, we investigate the impacts of idealized high latitude ocean albedo changes on Arctic sea ice restoration and climate. In our simulated 4xCO_2 climate, imposing surface albedo alterations over the Arctic Ocean leads to partial sea ice recovery and a modest reduction in Arctic warming. With the most extreme ocean albedo changes, imposed over the area 70°–90°N, September sea ice cover stabilizes at ~40% of its preindustrial value (compared to ~3% without imposed albedo modifications). This is accompanied by an annual mean Arctic surface temperature decrease of ~2 °C but no substantial global mean temperature decrease. Imposed albedo changes and sea ice recovery alter climate outside the Arctic region too, affecting precipitation distribution over parts of the continental United States and Northeastern Pacific. For example, following sea ice recovery, wetter and milder winter conditions are present in the Southwest United States while the East Coast experiences cooling. We conclude that although ocean albedo alteration could lead to some sea ice recovery, it does not appear to be an effective way of offsetting the overall effects of CO_2 induced global warming

    Some mutual funds do business with firms whose shares they own

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    Dragana Cvijanović, Amil Dasgupta and Konstantinos E. Zachariadis discuss how this presents a conflict of interes

    Study of the healing process after transplantation of pasteurized bone grafts in rabbits.

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    Different bone allografts (pasteurized, autoclaved, and frozen) were compared based on their osteoinductive properties. Our primary purpose was to examine the biologic qualities of pasteurized allografts, as pasteurization inactivates most viruses transmitted by transplantation. Frozen, pasteurized, and autoclaved allografts were packed into a standard defect of rabbit ulna. The animals were sacrificed at 2 and 4 weeks after surgery. The parts of bones with experimental defects were explored en bloc, and a roentgenogram was carried out. Ulna bone samples were then embedded in methyl-methacrylate. Roentgenograms showed that after 2 weeks, calluses were well-formed, but irregular in shape in all 3 types of allografts. After 4 weeks, the calluses were regular in shape in all but the autoclaved grafts. After 2 weeks, the healing processes had begun in the frozen and pasteurized grafts, with the reaching approximately the same stage, while in the autoclaved grafts these processes were not seen and the bone particles were surrounded by connective tissue without any changes. After 4 weeks, osteoinductive processes were very strong, with the first signs of complete bone remodeling at the bone edges of the defect in pasteurized and frozen allografts. The osteoinductive values of these 2 types were very high and similar. Autoclaved allografts, on the other hand, had very low osteoinductive values, as they were still at the very beginning of the healing process. Histomorphometric analysis revealed a significant difference in both newly formed osteoid thickness and osteoblast number per microm of bone surface in all experimental groups (P &#60; 0.005). Values of osteoid thickness and osteoblast number were significantly higher in both frozen and pasteurized grafts when compared with the autoclaved ones (P &#60; 0.005). Osteogenic properties of pasteurized bone allografts were preserved, and the allografts have been gradually replaced with newly formed bone. As such, pasteurized bone grafts from a bone bank have approximately the same biologic validity as frozen grafts, while autoclaved grafts impair bone healing.</p

    Uloga ekološkog savetodavstva u razvoju organske proizvodnje u Srbiji

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    Modern business conditionsrequire establishing a network between economic, social and ecological criteria of resources allocation. Using the ecologicalconsulting, which respects a situational approach in the paper, can make a balance between economic efficiency, socially responsible business and organic production standards.Approaching to the EU market imposes stricter business conditions, which reflect in tougher competition and numerous regulations in the field of the environment protection, protection of producers and consumers, etc.Consequentially, this paper had an ambition to point out to the significance of ecological consulting in the organic production affirmation in Serbia.Savremeni uslovi poslovanja zahtevaju uspostavljanje veze između ekonomskih, socijalnihi ekoloških kriterijuma alokacije resursa. Pomoću ekološkog savetodavstva koje uvažava situacioni pristup u radu može se postići balans između ekonomske efikasnosti, društveno odgovornog poslovanja i standarda organske proizvodnje. Pristupanje tržištu EU nameće strožije uslove poslovanja koji se ogledaju u oštrijoj konkurenciji i brojnim propisima iz oblasti zaštite životne okoline, zaštite proizvođača i potrošača i sl. Posledično, ovaj rad je imao ambiciju da ukaže na značaj ekološkog savetodavstva u afirmaciji organske proizvodnje u Srbiji
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