Neolitik kontinentalne Hrvatske intenzivno se istražuje od druge polovice 19. stoljeća, no, u usporedbi sa susjednim zemljama, relativno malo se zna o prehrambenoj ekonomiji stanovništva koje u to ...doba nastanjuje međuriječje Save, Drave i Dunava. Takvo stanje istraženosti onemogućava bilo kakve pokušaje da se odgovori na pitanja o kronološkim promjenama u taksonomskom sastavu životinjskih vrsta, o mogućim varijacijama u načinu na koji su životinje korištene na različitim mjestima i u različito vrijeme, o morfološkim i drugim promjenama unutar samih vrsta, itd. Stoga bi analiza kostiju i zuba sisavaca iz kasnoneolitičkih skupova nalaza u Osječko-baranjskoj županiji mogla poslužiti kao temelj za rekonstrukciju modela prapovijesnih strategija preživljavanja i prehrane u istočnoj Slavoniji. Cilj ovog rada je pružiti više informacija o iskorištavanju životinja na neolitičkim nalazištima u istočnoj Hrvatskoj, o složenosti stočarstva i razlikama u važnosti domaćih i divljih životinja za prehranu lokalnog stanovništva, te o strategijama preživljavanja zajednica s analiziranih nalazišta kao dijelova mreže naselja na prostoru sjevernog Balkana i južne Panonske nizine.
The Croatian Hiking Tour e-Log Goran Tomac; Dragan Špoljarić
Kartografija i geoinformacije,
12/2016, Letnik:
15, Številka:
26
Journal Article
Odprti dostop
The new HPO digital log that is easy to use and completely user-friendly, independent of the user’s device platform is developed. Its model (structure) can be adjusted easily to any other national, ...regional or local hiking tour.
The paper describes the Croatian web page Online ephemerides with its applications for calculating and visualising the equation of time and the analemma, converting zone time (zone or civil time) ...into true solar time (the time shown by sundials) and calculating the time of sunrise and sunset and the corresponding azimuths. The calculated values for the equation of time, ephemeris transit and the true solar time of ±4 seconds, sunrise and sunset times of ±30 seconds and the azimuth of ±30” must meet the accuracy needed by both amateur and professional astronomers. The web applications described are also adapted for smart phones.
U radu su opisane web stranice Online efemeride s aplikacijama za izracun i vizualizaciju jednadžbe vremena i analeme, preracunavanje pojasnog (zonskog ili grapanskog) vremena u pravo Suncevo vrijeme ...(vrijeme koje pokazuju suncane ure) te izracun vremena izlaska i zalaska Sunca i pripadajucih azimuta. Tocnost izracunanih vrijednosti jednadžbe vremena, efemeridnog prolaza i pravog Sunceva vremena je ± 4 sekunde, vremena izlazaka i zalazaka Sunca ± 30 sekundi i azimuta ± 30“ i zadovoljava tocnost potrebnu ne samo amaterima astronomima, vec i profesionalnim astronomima. Opisane su web aplikacije prilagopene i pametnim telefonima.
Svrha ovog rada je prikazati mogućnosti današnjih navigacijskih tehnologija. To uključuje tehnologije koje omogućuju
navigaciju u otvorenim i zatvorenim prostorima. Tehnologije i realizacije metoda ...za navigaciju u otvorenim prostorima
su više-manje općepoznate, a to uključuje globalne navigacijske satelitske sustave, mikroelektromehaničke sklopove,
inercijalne sustave, svjetlosno zamjećivanje i klasifikaciju te slične sustave. Tehnologije koje omogućuju navigaciju u zatvorenim
prostorima su relativna nepoznanica i ostvaruju se najviše pomoću pametnih telefona. To uključuje primjenu RSS-a, Cell
ID-a, kuta i vremena prijema signala itd. Dostupnost navedenih tehnologija i aplikacija na pametnim telefonima koje omogućuju
svugdje moguću navigaciju raste iz dane u dan, no treba uzeti u obzir i njihov utjecaj na suvremeno društvo. Pritom
je najvažniji utjecaj na privatnost korisnika, što je u radu detaljno istraženo.
Prikazan je novi digitalni dnevnik HPO-a čija je uporaba jednostavna, koji je u potpunosti prilagođen korisniku (eng. user-friendly), neovisan o platformi korisnikova uređaja te čiji se model ...(struktura) vrlo jednostavno može prilagoditi bilo kojoj drugoj nacionalnoj, regionalnoj ili lokalnoj planinarskoj obilaznici.
The aim of this work was to investigate the influence of cold storage at 2 °C for 180 days on water content, total acids, reducing and total sugar, antioxidant activity, polyphenol oxidase activity, ...and polyphenol profile of three Croatian traditional apple cultivars (‘Kanadska Reneta’, ‘Ilzer Rosenapfel’, ‘Wagener’). A significant variation in polyphenol profile of apple cultivars under investigation was noted. The most represented polyphenols in all apple cultivars were procyanidin B2 followed by chlorogenic acid, epigallocatechin, epicatechin, and phloridzin. After storage, the content of procyanidin B2 and chlorogenic acid was higher, while content of epigallocatechin after storage was lower in all investigated apple cultivars. Water content before storage ranged between 79.17 and 80.76 %, and after storage between 75.62 and 78.56 %. Total acids, polyphenol oxidase activity, and flavonoids had decreased during storage, while reducing and total sugar content was higher after storage. Moreover, after storage, cultivar ‘Kanadska Reneta’ had the highest antioxidant activity measured by both ABTS and DPPH methods, 1.65 and 0.70 mmol trolox kg–1, respectively. A significant variation in polyphenol profile of apple cultivars under investigation was noted. The most represented polyphenols in all apple cultivars were procyanidin B2, followed by chlorogenic acid, epigallocatechin, epicatechin, and phloridzin. After storage, the content of procyanidin B2 and chlorogenic acid was higher, while content of epigallocatechin after storage was lower in all investigated apple cultivars. Overall, it can be concluded that investigated apple cultivars, after storage, preserved most of the antioxidants and functional properties.
This research is focused on comparing the compositions of juice produced from old and commercially grown apple cultivars. We examined factors such as pH, total acids, soluble dry matter, polyphenol ...profile, and antioxidant activity, which impact the attributes, safety, shelf life, and nutritional value of the juice. Our analysis revealed differences between these two groups of cultivars. For instance, pH values ranged from 3.04 (in ‘Bobovec’) to 3.69 (in ‘Fuji’). The proportions of acids varied from 0.07 g/100 mL (in ‘Fuji’) to 0.19 g/100 mL (in ‘Wagener’). Soluble dry matter content ranged from 14.10% (in ‘Fuji’) to 18.50% (in ‘Kraljevčica’). We also observed variations in sugar content and composition among cultivars; for example, sucrose levels varied from 16.11 g/L (‘Fuji’) to 39.36 g/L (‘Golden Delicious). Glucose levels ranged from 4.95 g/L (‘Jonagold’) to 19.18 g/L (‘Fuji’), while fructose levels spanned from 50.78 g/L (‘Austrougarka’) to 427.97 g/L (‘Ilzer Rosenapfel’). Furthermore, old apple cultivars exhibited higher concentrations of phenols and flavonoids compared to commercial ones; we also noted significant variations in flavonol levels among different cultivars. The ‘Wagener’ and ‘Božićnica’ apple varieties had levels of myricetin measuring 0.53 and 0.52 µg/mL, respectively. On the other hand, ‘Bobovec’ stood out for its content of procyanidin B2 with a concentration of 422.61 µg/mL. When examining non-flavonoid compounds, it was found that old apple cultivars had higher concentrations of gallic acid, trans-ferulic acid, and chlorogenic acid. However, commercial cultivars showed dominance in caffeic and p-coumaric. Comparisons of antioxidant capacity using DPPH and ABTS assays clearly demonstrated the superiority of old apple cultivars. Overall, this study highlights the importance of utilizing apple cultivars for juice production. Their distinct compositions and higher antioxidant capacities contribute to potential health benefits. Preserving these cultivars for enhanced juice quality and nutritional value is encouraged. Further research could explore cultivation practices’ impact on composition and health benefits.
