Fusion excitation function revisited

We report on a comprehensive systematics of fusion-evaporation and/or fusion-fission cross sections for a very large variety of systems over an energy range 4-155 A.MeV. Scaled by the reaction cross sections, fusion cross sections do not show a universal behavior valid for all systems although a high degree of correlation is present when data are ordered by the system mass asymmetry.For the rather light and close to mass-symmetric systems the main characteristics of the complete and incomplete fusion excitation functions can be precisely determined. Despite an evident lack of data above 15A.MeV for all heavy systems the available data suggests that geometrical effects could explain the persistence of incomplete fusion at incident energies as high as 155A.MeV.Comment: 8 pages, 5 figures, contribution to the NN2012 Proceeding

UPOREDNA ANALIZA SEROLOŠKIH METODA U DIJAGNOSTICI BRUCELOZE GOVEDA

Bruceloza je zarazno oboljenje domaćih, divljih životinja i ljudi, rašireno u celomsvetu. Dijagnostika bruceloze putem izolacije uzročnika je veoma teška, dugotrajnai predstavlja rizik od infekcije. Iz tih razloga, serološke metode predstavljaju metodeizbora.Cilj rada je bila uporedna analiza specifi čnosti i osetljivosti testova za dijagnostikubruceloze koji se rutinski koriste na teritoriji Republike Srbije.Ukupno je ispitano 120 uzoraka krvnog seruma goveda na prisustvo specifi čnihantitela protiv Brucella spp. Svi serumi su prvo ispitani primenom Rose Bengal testa.Uzorci koji su pokazali pozitivnu reakciju su zatim ispitivani primenom iELISA i cELISAtesta. Izračunavanje osetljivosti i specifi čnosti seroloških testova je sprovedenona osnovu dobijenih rezultata.Analizom osetljivosti i specifi čnosti zaključeno je da su obe metode (Rose Bengaltest, iELISA test) visoko osetljive (100%, 92%) sa razlikom od 8% u korist iELISA testa,koji se pokazao i kao daleko specifi čnija metoda (91%) u odnosu na Rose Bengaltest (69%).Uporednom analizom rezultata dobijenih u ispitivanju osetljivosti i specifi čnostiRose Bengal testa i indirektne imunoenzimske metode (iELISA) u otkrivanju specifičnih antitela protiv Brucella spp. u krvnim serumima goveda, utvđena je većaosetljivost i specifi čnost metode iELISA u odnosu na Rose Bengal test

Detection and genotyping of classical swine fever virus isolates in Serbia

Classical swine fever (CSF) is a highly contagious disease of pigs leading to significant economic losses worldwide. Classical swine fever virus can be classified into three genogroups, each consisting of three or four subgroups. However, there is a lack of knowledge on the genotypes of CSFV isolates in Republic of Serbia. This study, based on the sequences analysis of partial E2 gene and 5' non coding region (NCR) of 15 CSFV isolated during 2006-2008 from domestic pigs, revealed that all were clustered into genetic group 2.3. Additionally, we showed that the two most often used real time RT-PCR assays were able to detect all local CSF viruses circulated in Serbia in the last years during intensive vaccination campaign against CSF. [Projekat Ministarstva nauke Republike Srbije, br. TR 31075 and TR 31088

Occupational exposure to benzene and haematological changes

U ljeto 1984. godine radnice u tvornici "INA-OKI Drnišplast" učestalo su se tužile na glavobolju, mršavljenje i poremećene menstruacijske cikluse. Budući da su inženjeri u tvornici pretpostavili da je tome uzrok promijenjen sastav boja i ljepila koje su se te godine upotrebljavale bez deklaracije, pozvan je Institut za sigurnost iz Zagreba da izmjeri koncentracije organskih otapala u radnoj atmosferi. Analize su potvrdile da su koncentracije benzena i do pet puta više od maksimalno dopuštenih, toluena do tri puta i cikloheksana i do deset puta. Pogon je zatvoren, radni proces je izmijenjen (boje nisu upotrebljavane, za lijepljenje je rabljeno ljepilo koje ne sadržava benzen, primijenjena je odgovarajuća ventilacija) i sve radnice podvrgnute su liječenju. Nakon tri mjeseca pogon je ponovno počeo s radom. Kontrolni pregled obavljen 1989. pokazao je znakove subjektivnog i objektivnog oporavka svih dvadeset radnica. Svi nalazi krvi bili su u normalnim granicama i sve radnice nastavile su raditi, osim jedne, koju je 1988. godine Invalidska komisija uputila u mirovinu zbog profesionalne bolesti - otrovanja benzenom. Ovaj prikaz događaja potvrđuje da je pri radu s benzenom važno dosljedno pridržavanje uputa iz Pravilnika o utvrđivanju radne sposobnosti za obavljanje poslova s posebnim uvjetima rada i Zakona o zaštiti na radu.In the summer of 1984 workers in the "INA-OKI Drnišplast" factory frequently complained about headaches, weight loss and irregular menstrual cycles. According to the factory engineers that might have been due to an altered composition of the paints and glues that were used in the manufacturing process that year. Those had been found to lack specifications of chemical composition. Experts from the Institute for the Safety at Work from Zagreb were called in to perform measurements of organic solvents content in the workroom air. Benzene concentrations were found to be up to five times higher than the maximum permissible levels, those of toluene up to three; times and of cyiclohexane up to ten times higher. The polluted part of the factory was closed down, changes were introduced into the working process (use of paints was stopped, only glues without benzene content were allowed and proper ventilation was installed) and all the workers, twenty in all, received medical treatment. After three months the working process was resumed. In 1989 all the twenty workers underwent a control medical examination. All showed signs of recovery, both objective and subjective. Their blood tests values were within normal range. All the workers continued working, save one who retired in 1988 upon recommendation of a disability commission. The cause of disablement was occupational disease - benzene poisoning. On the basis of this experience emphasis is placed on the importance, in working with benzene, of complying with the legislation on working capacity assessment for jobs requiring special working conditions and with the Safety at work act

ERYTHROCYTE SEDIMENTATION RATE :GUIDELINES

Svakodnevne su kliničke dileme vezane uz interpretaciju povišenih vrijednosti sedimentacije eritrocita (SE). Prikazom recentne literature izabrali smo neke od smjernica za svakodnevnu kliničku praksu. Klinička slika i fizikalni nalaz (nedavni respiratorni infekt, koæne promjene artralgija, glavobolja, mišićni bolovi, mršavljenje, anemija, srčani ¹umovi , multipli mijelom) te dodatna laboratorijska evaluacija (kompletna krvna slika, urea, kreatinin, alkalna fosfataza, elektroforeza proteina, analiza urina, stolica na okultno krvarenje, RTG srca i pluÊa, PPD) osnovna su evaluacija u pacijenta s ubrzanom SE. Iako nespecifična, SE je važan parametar u ranoj dijagnostici i praćenju bolesti, te ga ne bi trebalo podcijeniti, ali niti precijeniti u kliničkoj obradi.Interpretation of elevated erythrocyte sedimentation rate (ESR) is still everyday clinical dilemma. We rewieved recent literature and suggested guidelines for rational use of ESR. Clinical data and physical examination (recent respiratory infection, skin changes, arthralgia, headache, muscular pain, weight loos, anemia, heart murmurs, multiple myeloma) as well as laboratory evaluation (blood analysis, BUN, creatinine, alcaline phosphatase, protein electrophoresis, urianalysis, occult blood in the feces,chest X-ray, PPD) are basic evaluation in patients with elevated ESR. ESR is nonspecific but important parameter in early diagnosis and follow up so it should not be underestimated or overestimated in clinical practice

Microencapsulation of Olive Leaf Extract by Spray Drying

The aim of this research was to obtain a high value powder of olive leaf extract (OLE) rich in polyphenols by spray drying. Since carrier, polyphenols/carrier ratio, and inlet temperature could have an impact on process yield and polyphenol retention, to define the most promising drying conditions for OLE experiment with gallic acid model solutions (GAS) was conducted. Influence of carrier type (maltodextrin, inulin, gum arabic, and their two-component blends), polyphenols/carrier ratio, and temperature on process yield of spray dried GAS was examined, and for each carrier the most promising temperature and ratio were selected. Optimal temperature for all GAS samples was 150°C, and optimal gallic acid/carrier ratio for samples with inulin or gum arabic was 3:1, while for all other combinations it was 5:1. In OLE powder produced under these conditions, polyphenol content and physical properties (rehydration, bulk density) were determined. Mixture of maltodextrin and gum arabic resulted in the highest OLE product yield (54.48%) and the highest polyphenol retention (56.50%) obtaining good physical properties (bulk density =0.31 g ml–1, rehydration time=98 s), while use of inulin resulted in the lowest yield (32.71%), polyphenol retention (28.24%), bulk density (0.25 g ml–1), and the highest rehydration time (140 s)