Analiza Legende o 12 petaka provedena je u kontekstu religiozne kulture i srednjovjekovne estetike, s naglaskom na posebnostima teksta i s ciljem ukazivanja na njegovu ljepotu i vrijednost. Istražene ...su prvenstveno stilske i kompozicijske, tematsko - motivske i jezične osobitosti. Posebno se ističe genijalna kompozicija koja je izvanredno usklađena s idejom, odnosno porukom djela, a građena je na važnim srednjovjekovnim simbolima, krugu i križu. Nadalje, ističe se izbor te red riječi i grafema koji otkriva na prvi pogled skrivene slojeve Legende i osobitu simboliku teksta, dakle izraz koji je usklađen sa sadržajem djela. Vrijedno je spomenuti i originalnu karakterizaciju i psihologiju likova; vješto i svrsishodno ispreplitanje žanrova koje pisac koristi kao jedan od načina prikazivanja potpunosti i sveobuhvatnosti; „igru“ slovima, riječima i njihovim značenjima i druge osobitosti koje nisu slučajne, a o tome svjedoče primjeri i usporedbe s prijepisima Legende o 12 petaka iz drugih glagoljskih i ćirilskih izvora. Sve to ukazuje na neupitnu vrijednost proučavanog teksta i piščevu svjesnu težnju da njegovo djelo ne bude samo zapis, prijepis, poučni tekst ili slično, već da bude originalno djelo visoke umjetničke vrijednosti.
Polymer blends of styrene-acrylonitrile (SAN) and ethylene-propylenediene copolymer (EPDM) were prepared by casting films from chloroform solution. Their compositions were 95/5, 90/10 and 80/20, ...respectively. To simulate ageing, SAN/EPDM blends were degraded at 140°C for several different time intervals and the degree of degradation was followed by IR spectroscopy and by determination of molar masses. To recover thermally degraded SAN/EPDM blends,
polymerization by addition of styrene monomer was applied. Characterization of SAN and EPDM, graft copolymer and gel was carried out in order to reveal the polymerization process. Extractions of the polymers were made using solvents in a Soxhlet equipment: SAN in a mixture of acetone/ methanol, EPDM in hexane, graft copolymer in tetrahydrofuran, while the remaining part was considered as gel. Identification of extracted polymers has been conducted by IR spectroscopy. The presence of graft copolymer in the polymerization mixture proved the grafting reaction of polymer radicals. The highest content of graft copolymer was obtained for SAN/EPDM polymer blends that were exposed to thermal treatment for the longest time interval of 90 h.
Mosses, lichens, mushrooms are able to efficiently accumulate different radioactive elements from their environment to a much higher degree than other vegetation. They are sensitive bioindicators of ...radioactive contamination for various ecosystems, particularly in the event of a nuclear accident and uncontrolled emission oh fission products. Results of systematic, long-term measurements of 137Cs activities in mosses and in some edible mushroom species in North Croatia for the post-Chernobyl period (1986-2007) are summarized. The study was conducted in the Radiation Protection Unit of the Institute for Medical Research and Occupational Health in Zagreb, as a part of an extensive monitoring program of the Croatian environment. In the overall observed period the highest activity concentration of 137Cs deposited by fallout has been recorded in 1986, which is the year of Chernobyl accident, causing peak S7Cs activity concentration in moss of 8800 Bq/kg in May 1986. In the same period mean 137Cs activity concentration in grass was 390 Bq/kg. The highest value of 137Cs activity concentration in Cortinarius caperatus mushrooms of 1351 Bq/kg has been recorded in 1989. Fitting the measured 137Cs activity concentrations to the theoretical curve the ecological half-life of 137Cs in moss was found to be around 978 days, in grass around 126 days in the period 1986-1990, in Cortinarius caperatus mushroom around 5865 days (16.1 years). Regarding the risk assessment to Croatian population, due to consumption of mushrooms, the collective effective dose for Croatian population, estimated to be about 35 mSv per year, was found to be quite low. Therefore, it can be concluded that mushroom consumption was not a critical pathway for the transfer of radiocaesium from fallout to humans after the Chernobyl accident.
Mosses, lichens, mushrooms are able to efficiently accumulate different radioactive elements from their environment
to a much higher degree than other vegetation. They are sensitive bioindicators of ...radioactive contamination for various
ecosystems, particularly in the event of a nuclear accident and uncontrolled emission oh fission products. Results of systematic,
long-term measurements of 137Cs activities in mosses and in some edible mushroom species in North Croatia for
the post-Chernobyl period (1986–2007) are summarized. The study was conducted in the Radiation Protection Unit of
the Institute for Medical Research and Occupational Health in Zagreb, as a part of an extensive monitoring program of
the Croatian environment. In the overall observed period the highest activity concentration of 137Cs deposited by fallout
has been recorded in 1986, which is the year of Chernobyl accident, causing peak 137Cs activity concentration in moss of
8800 Bq/kg in May 1986. In the same period mean 137Cs activity concentration in grass was 390 Bq/kg. The highest value
of 137Cs activity concentration in Cortinarius caperatus mushrooms of 1351 Bq/kg has been recorded in 1989. Fitting the
measured 137Cs activity concentrations to the theoretical curve the ecological half-life of 137Cs in moss was found to be
around 978 days, in grass around 126 days in the period 1986–1990, in Cortinarius caperatus mushroom around 5865
days (16.1 years). Regarding the risk assessment to Croatian population, due to consumption of mushrooms, the collective
effective dose for Croatian population, estimated to be about 35 mSv per year, was found to be quite low. Therefore, it
can be concluded that mushroom consumption was not a critical pathway for the transfer of radiocaesium from fallout to
humans after the Chernobyl accident.
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