UTJECAJ SPOLA NA RAZVOJ ŽDREBADI LIPICANSKE PASMINE

The offspring’s development especially in the first months after foaling is crucial for further development. If favourable conditions of feeding, keeping and fancying as well as other important conditions are ensured, a homogenous growth and development of the offspring is obtained. Research was conducted on 44 male and 42 female Lipizzaner breed foals in the first six months after foaling. The measuring of the withers height, chest girth and cannon bone circumference were done seven days after foaling and at the age of six months. Measuring data were processed by the statistical program SPSS/PC (Nie et al., 1975). The processed data of the obtained measurings indicate homogeneity for both male and female foals. The male foals had a little higher values than the female in both measurings, but the differences between sexes were highly significant only in the cannon bone circumference. Correlations among obtained values were positive and ranged between low and very high, with correlation coefficients between r= 0.379 and r=0.843 for male and r=0.338 and r=0.723 for female foals. The differences between the obtained values were significant and highly significant and a little more marked in male foals.Razvoj podmlatka, naročito u prvim mjesecima nakon ždrijebljenja, odlučujući je i za kasniju razvijenost. Ukoliko se u fazi sisanja osiguraju povoljni uvjeti hranidbe, držanja i njege, kao i ostalih uvjeta bitnih za normalan rast i razvoj, dobiva se ujednačeni rast i razvoj podmlatka. Istraživanja su obavljena na 44 muške i 42 ženske ždrebadi lipicanske pasmine u prvih šest mjeseci nakon ždrijebljenja. Izvršena su mjerenja visine grebena, opsega prsa i opsega cjevanice sedam dana nakon ždrijebljenja i u dobi od šest mjeseci. Podaci mjerenja obrañeni su prema statističkom programu SPSS/PC (Nie i sur., 1975.). Obrañeni podaci dobivenih mjerenja ukazuju na ujednačenost, kako za mušku tako i za žensku ždrebad. Muška ždrebad imala su nešto veće vrijednosti nego ženska u oba mjerenja, no razlike izmeñu spolova bile su visoko signifikantne samo u opsegu cjevanice. Korelacijske povezanosti izmeñu dobivenih vrijednosti bile su pozitivne i kretale su se između slabe i vrlo jake, s korelacijskim koeficijentima izmeñu r=0,379 i r=0,843 za mušku te r=0,338 i r=0,723 za žensku ždrebad. Razlike između dobivenih vrijednosti bile su signifikantne i visoko signifikantne te nešto jače izražene kod muške ždrebadi

INFLUENCE OF SOLVENT TYPE ON THE PHENOLIC CONTENT AND ANTIMICROBIAL AND ANTIOXIDANT PROPERTIES OF ECHIUM VULGARE L. EXTRACTS

The aim of this study was to investigate influence of solvent type on the phenolic content and antimicrobial and antioxidant properties of Echium vulgare L. extracts. The following solvents were used in the study: ethanol, acetone, chloroform, petroleum and ethyl acetate. The content of phenols, flavonoids and tannins was determined by spectrophotometric methods, while the identification and quantification of polyphenolic compounds was performed by chromatographic method. Determination of antimicrobial activity was done by microdilution method, while several methods were used in the evaluation of antioxidant activity of plant extracts. The ethanolic extract had the highest content of phenols and flavonoids, while chloroform extract had the highest content of tannins. The ethanolic extract exhibited the best antioxidant potential compared to other extracts, and ethanolic and chloroform extracts manifested the best antimicrobial activity

Long-term monitoring of the broad-line region properties in a selected sample of AGN

We present the results of the long-term optical monitoring campaign of active galactic nuclei (AGN) coordinated by the Special Astrophysical Observatory of the Russian Academy of Science. This campaign has produced a remarkable set of optical spectra, since we have monitored for several decades different types of broad-line (type 1) AGN, from a Seyfert 1, double-peaked line, radio loud and radio quiet AGN, to a supermassive binary black hole candidate. Our analysis of the properties of the broad line region (BLR) of these objects is based on the variability of the broad emission lines. We hereby give a comparative review of the variability properties of the broad emission lines and the BLR of seven different type 1 AGNs, emphasizing some important results, such as the variability rate, the BLR geometry, and the presence of the intrinsic Baldwin effect. We are discussing the difference and similarity in the continuum and emission line variability, focusing on what is the impact of our results to the supermassive black hole mass determination from the BLR properties.Comment: Published in Frontiers in Astronomy and Space Scienc

Anticancer effects of selenium compounds on human colonic carcinoma cells

Studies performed so far on different human carcinoma cell lines, as well as numerous case-control and epidemiological studies have given proof to the protective effects of selenium against cancer. However, the anticancer properties of selenium are site-specific. The aim of this work was to evaluate the cytotoxic effect of selenium against CaCo2 human colon carcinoma cells, and SW620 lymph node metastasis of colon carcinoma cell line. Three selenium compounds, seleno-DL-cystine (SeC), seleno-L-methionine (SeM) and sodium selenite were used. Initial number of cells was 210 4 and the cells were incubated for 72 h with the aforementioned Se compounds at 10, 100 and 1000 µmol Se concentrations. Cytotoxicity was measured by the MTT cell survival assay. In the present study, decreased viabilities of both CaCo2 and SW620 cells were established following the treatment with selenite, SeC, and SeM. At 10 µmol Se levels all three chemical forms exerted a more or less anticipated cytotoxic effect with viability decreases ranging from 22 to 37%. However, the other two levels of 100 and 1000 µmol Se did not exhibit an expected proportional rise in cytotoxic effect compared to 10 µmol, which warrants further research on the reasons for increased resistance of these cells. Cell morphology also indicates that investigated Se forms induced apoptotic cell death in both cell lines. The results confirm the applicability of Se in the prevention and treatment of the investigated cancer sites

Etiopathogenesis of abomasal displacement in cattle

Abomasal displacement presents topographic gastropathy, where this organ has changed its position, and there is simultaneous dilatation which can vary in intensity. The incidence of this disorder in herds of high-yield dairy cows varies to a great degree (1 to 18 %). Abomasal displacement was established in herds of East-Frisian cows in 1 to 3% animals, and in Holstein cow herds in 5 to 18 % animals. The most frequent abomasal displacement is to the left (88%). There is significant seasonal variation in the incidence of abomasal displacement. About two-thirds of cases of abomasal displacement are diagnosed from October until April. The disorder appears more frequently in cows with repeated lactations. It has been established that it appears after the first calving in 27.8% cases, after the second to fifth calving in 66.7% cases, and after the sixth and seventh calving in 5.5% of the cows. The response of endocrine pancreas B-cells for insulin secretion to hyperglycaemia caused by applying an excess-glucose test is reduced in cows with left abomasal displacement, and there is constant hyperglycaemia in cows with right abomasal displacement. The excess-glucose test indicates a disrupted function of the endocrine pancreas in diseased animals. It has been determined through examinations of Aml genotypes in Holstein cow herds in connection with the appearance of abomasal displacement, that the occurrence of this disorder cannot be attributed to a genetic predisposition

HERITABILITÄT UND KORRELATIONSVERBUNDENHEIT DER KÖRPERMASSE BEI LIPIZANERPFERDEN

The researches of heritability and correlation among the withers height chest volume, and cannons volume have been done on 368 horses of the Lipizzaner breed in different phases in the Horse Selection Centre in Đakovo (Croatia). The data processing have been done by the method of the least squares. The largest value of heritability (h²) for the withers height has been established in the age of 6 months (0.80) and the smallest in the age of 12 months (0.49). The heritability values for the chest volume range between 0.31 and 0.68, and for the cannons volume between 0.25 and 0.58. The phenotypic correlations between properties were positive, except for the chest volume in the age of 6 months and cannons volume at birth being slightly negative (r = -0.096). The correlations between properties are more expressed with horses of the same age then for the different one.Die Untersuchungen der Heritabilität und Korelationsverbundenheit der Widerristhöhe, des Brust-und Schienbeinsumfangs wurden an 368 Lipizanerpferden in verschiedenen Entwicktungsphasen im Zentrum für Pferdezucht in Đakovo (Croatien) durchqeführt. Die Datenvererbeitung wurde mit Hilfe der Methode der kleinsten Quadrate gemacht (Harvey 1977). Der grösste Heritabilitätswert (h²) der Widerristhöhe war im Alter von 6 Monaten (0,80) und der kleinste im Alter von 12 Monaten (0,49). Der Heritabilitätswert des Brustumfangs war zwischen 0,31 und 0,68, und des Schienbeinsumfangs zwischen 0,25, und 0,58. Die Fenotypskorelationen waren zwischen den genannten Eigensehatften positiv, ausser bei der Geburt, wo sie ein weing negativ waren (r = 0,096). Die Korrelationsverbundenheit der geprüften Eigenschaften ist bei den Pferden im gleichen Alter deutlicher als bei den Pferden im verschieilenen Alter

Hplc analysis of phenolic acids in mountain germander (Teucrium montanum L) extracts

The methanol, petroleum ether, chloroform, ethyl acetate, 1-butanol and water extracts were obtained by extraction of mountain germander (Teucrium montanum L). The total phenolic content in extracts was measured by Folin-Ciocalteu method. The 1-butanol extract had the highest phenolic content (296.00 mg/g). High performance liquid chromatography (HPLC) was employed to define qualitative and quantitative content of phenolic acids in mountain germander extracts. The largest number of phenolic acids were determined in ethyl acetate and 1-butanol extracts, while these acids were not present in petroleum ether extract. The highest content of phenolic acids (28.619 mg/g) had ethyl acetate extract and gentisic acid (14.432 mg/g) was its major component. Despite of a large number of phenolic acids in 1-butanol extract their content was only 3.740 mg/g

Comparison of 35 and 50 {\mu}m thin HPK UFSD after neutron irradiation up to 6*10^15 neq/cm^2

We report results from the testing of 35 {\mu}m thick Ultra-Fast Silicon Detectors (UFSD produced by Hamamatsu Photonics (HPK), Japan and the comparison of these new results to data reported before on 50 {\mu}m thick UFSD produced by HPK. The 35 {\mu}m thick sensors were irradiated with neutrons to fluences of 0, 1*10^14, 1*10^15, 3*10^15, 6*10^15 neq/cm^2. The sensors were tested pre-irradiation and post-irradiation with minimum ionizing particles (MIPs) from a 90Sr \b{eta}-source. The leakage current, capacitance, internal gain and the timing resolution were measured as a function of bias voltage at -20C and -27C. The timing resolution was extracted from the time difference with a second calibrated UFSD in coincidence, using the constant fraction method for both. Within the fluence range measured, the advantage of the 35 {\mu}m thick UFSD in timing accuracy, bias voltage and power can be established.Comment: 9 pages, 9 figures, HSTD11 Okinawa. arXiv admin note: text overlap with arXiv:1707.0496

Charge collection properties of irradiated depleted CMOS pixel test structures

Edge-TCT and charge collection measurements with passive test structures made in LFoundry 150 nm CMOS process on p-type substrate with initial resistivity of over 3 k$\Omega$cm are presented. Measurements were made before and after irradiation with reactor neutrons up to 2$\cdot$10$^{15}$ n$_{\mathrm{eq}}$/cm$^2$. Two sets of devices were investigated: unthinned (700 $\mu$m) with substrate biased through the implant on top and thinned (200 $\mu$m) with processed and metallised back plane. Depleted depth was estimated with Edge-TCT and collected charge was measured with $^{90}$Sr source using an external amplifier with 25 ns shaping time. Depleted depth at given bias voltage decreased with increasing neutron fluence but it was still larger than 70 $\mu$m at 250 V after the highest fluence. After irradiation much higher collected charge was measured with thinned detectors with processed back plane although the same depleted depth was observed with Edge-TCT. Most probable value of collected charge of over 5000 electrons was measured also after irradiation to 2$\cdot$10$^{15}$ n$_{\mathrm{eq}}$/cm$^2$. This is sufficient to ensure successful operation of these detectors at the outer layer of the pixel detector in the ATLAS experiment at the upgraded HL-LHC

Gain and time resolution of 45 μ\mum thin Low Gain Avalanche Detectors before and after irradiation up to a fluence of 101510^{15} neq_{eq}/cm2^2

Low Gain Avalanche Detectors (LGADs) are silicon sensors with a built-in charge multiplication layer providing a gain of typically 10 to 50. Due to the combination of high signal-to-noise ratio and short rise time, thin LGADs provide good time resolutions. LGADs with an active thickness of about 45 $\mu$m were produced at CNM Barcelona. Their gains and time resolutions were studied in beam tests for two different multiplication layer implantation doses, as well as before and after irradiation with neutrons up to $10^{15}$ n$_{eq}$/cm$^2$. The gain showed the expected decrease at a fixed voltage for a lower initial implantation dose, as well as for a higher fluence due to effective acceptor removal in the multiplication layer. Time resolutions below 30 ps were obtained at the highest applied voltages for both implantation doses before irradiation. Also after an intermediate fluence of $3\times10^{14}$ n$_{eq}$/cm$^2$, similar values were measured since a higher applicable reverse bias voltage could recover most of the pre-irradiation gain. At $10^{15}$ n$_{eq}$/cm$^2$, the time resolution at the maximum applicable voltage of 620 V during the beam test was measured to be 57 ps since the voltage stability was not good enough to compensate for the gain layer loss. The time resolutions were found to follow approximately a universal function of gain for all implantation doses and fluences.Comment: 17 page