Mesto i značaj organske proizvodnje u razvoju poljoprivrede Republike Srbije

Agriculture in the Republic of Serbia is a strategic economic sector with a high contribution to GDP and total employment of the population. It is characterized by the extensiveness, variety, a large number of farms primarily family, fragmentation of holdings, low average economic size of the farm. On the other hand these are the advantages and prerequisites for the development of a successful organic farming in this region. Although organic production in the world has a positive trend, it is stagnant in Serbia and there is little participation in the overall development of Serbian agriculture. The increase in the area of crop production should contribute to increasing organic livestock production, which is expected to value added products. Development of other organic agricultural system should provide sufficient health safety and high value products for domestic needs and export to the world market. In this sense, each of the relevant factors has to make its maximum contribution in achieving objectives.Poljoprivreda u Republici Srbiji predstavlja stratešku privrednu granu sa visokim doprinosom BDP-u i ukupnoj zaposlenosti stanovništva. Karakteriše je ekstenzivnost, raznovrsnost, veliki broj poljoprivrednih gazdinstava prvenstveno porodičnih, usitnjenost poseda, niska prosečna ekonomska veličina gazdinstva. S druge strane, ovo su prednosti i preduslov za uspešni razoj ekološke poljoprivrede na ovim prostorima. Iako organska proizvodnja u svetu ima pozitivan trend u Srbiji ona stagnira i ima malo učešće u ukupnom razvoju srpske poljoprivrede. Povećanje u domenu ratarske proizvodnje trebalo bi da doprinese porastu organskog stočarstva, od koga se očekuje dodata vrednost ovih proizvoda. Razvoj ostalih organskih poljoprivrednih sistema bi trebao da obezbedi dovoljno zdravstveno bezbednih i visokovrednih proizvoda za domaće potrebe i izvoz na svetsko tržište. U tom smislu svaki od relevantnih činilaca treba da da svoj maksimalni doprinos u realizaciji postavljenih ciljeva

Ion antiport accelerates photosynthetic acclimation in fluctuating light environments

Many photosynthetic organisms globally, including crops, forests and algae, must grow in environments where the availability of light energy fluctuates dramatically. How photosynthesis maintains high efficiency despite such fluctuations in its energy source remains poorly understood. Here we show that Arabidopsis thaliana ​K+ efflux antiporter (​KEA3) is critical for high photosynthetic efficiency under fluctuating light. On a shift from dark to low light, or high to low light, ​kea3 mutants show prolonged dissipation of absorbed light energy as heat. ​KEA3 localizes to the thylakoid membrane, and allows proton efflux from the thylakoid lumen by proton/potassium antiport. ​KEA3’s activity accelerates the downregulation of pH-dependent energy dissipation after transitions to low light, leading to faster recovery of high photosystem II quantum efficiency and increased ​CO2 assimilation. Our results reveal a mechanism that increases the efficiency of photosynthesis under fluctuating light. [EN]This project was funded by the Carnegie Institution for Science, by ERDF-cofinanced grants from the Ministry of Economy and Competitiveness (BIO2012-33655) and Junta de Andalucia (CVI-7558) to K.V., the Natural Sciences and Engineering Research Council of Canada (NSERC) PGS-D3 scholarship to L.P. and Deutsche Forschungsgemeinschaft grants (JA 665/10-1 and GRK 1525 to P.J.; AR 808/1-1 to U.A.).Peer reviewe

NEW RECOMMENDATIONS FOR APPLYING THE HEPARIN IN ACUTE CORONARY SYNDROMES: A CRITICAL VIEW

The heparin therapy in acute myocardial infarct as well as in unstable anginapectoris is useful though risk-taking. New recommendations presented by competentassociations also included the results of the recent studies; thus, it is expected thatthey would improve the quality of daily work in the coronary unit. The cardiologistare obliged to get to know and to apply adequately the given exact advice as well asthe principles that the recommendations are based upon.Some possible shortcomings of these suggestions are also perceived; theiranalysis can help create an attitude implying that the advice is not to be taken as alaw. We consider it ethically proper to include, as an indispensable part, an explanationof one's own achievements and shortcomings in the recommendations. Thismeans that the doctors dealing with the respective urgent problems will have to takea critical view of the recommendations on the basis of their own knowledge,experience and logic

Cohort profile. the ESC-EORP chronic ischemic cardiovascular disease long-term (CICD LT) registry

The European Society of cardiology (ESC) EURObservational Research Programme (EORP) Chronic Ischemic Cardiovascular Disease registry Long Term (CICD) aims to study the clinical profile, treatment modalities and outcomes of patients diagnosed with CICD in a contemporary environment in order to assess whether these patients at high cardiovascular risk are treated according to ESC guidelines on prevention or on stable coronary disease and to determine mid and long term outcomes and their determinants in this population