Search results for "NBO"
showing 10 items of 266 documents
Sarcosinaemia in a retarded, amaurotic child.
1986
A 9-month-old Turkish girl demonstrated an abnormal qualitative amino acid excretion pattern suggestive of sarcosinaemia. She was blind and had evidence of developmental and motor retardation. No other physical abnormalities were noted. Quantitative amino acid analysis revealed elevated serum and urine sarcosine levels. An oral sarcosine loading test showed an exaggerated response with a delayed conversion to glycine. Sarcosine was undetected in other family members.
Compensatory growth in juvenile rainbow trout, Oncorhynchus mykiss (Walbaum), held individually
2004
Abstract The effect of feed cycling on compensatory growth was examined in juvenile rainbow trout, Oncorhynchus mykiss (Walbaum), held individually at 15 °C. Fish were fasted for 2, 4, 8, or 14 days and then refed until either their relative feed intake differed by less than 10% of fed controls, or the duration of the refeeding period was four times the fasting period. After 80 days, fish fasted for 8 days at a time were smaller than controls, or fish experiencing 2 or 4 days of fasting, while fish fasted for 14 days did not differ from other groups. There were no differences in visceral fat or hepatosomatic indices, but within-treatment variation was high. Fish subjected to fasting display…
Eye fluke-induced cataract formation in fish: quantitative analysis using an ophthalmological microscope
2004
We examined the parasite-induced cataract formation in rainbow trout (Oncorhynchus mykiss) using slit-lamp microscopy to determine the relationship between cataract intensity and number of Diplostomum spathaceum parasites that were established in the lens. Cataract intensity increased significantly with parasite burden, but was also affected by the pattern of exposure to the parasite cercariae. The slit-lamp methodology proved useful in scoring the cataracts since it provides a 3-dimensional view into the lens and gives an actual picture of the location and intensity of the cataracts, which allows detailed investigations of mechanisms underlying cataract formation in various fish species. P…
Androgen metabolism in the skin of the rainbow trout (Oncorhynchus mykiss)
1993
Pieces of skin of male and female rainbow trout (Oncorhynchus mykiss) were incubated with testosterone and 11-ketotestosterone as substrates. In immature fish the conversion rate was low. In non-spawning adult males 11-ketotestosterone was reduced to 5α-11KDHT (up to 5.2%). In the fish in spawning condition the 5α-reduction rate was only about 1 to 2%. In the same specimens incubated with testosterone a high 11β-hydroxylase activity (23.8-25% in the male and 13% in the female skin) was found. Similar sex specific differences were observed for the occurence of 5α-reduced metabolites (about 20% in the male and 13% in the female tissue).
Dažādu mākslīgā intelekta risinājumu pielietojums e-komercijā
2022
Bakalaura darbā “Dažādu mākslīgā intelekta risinājumu pielietojums e-komercijā” tiek apskatīti un analizēti dažādi mākslīgā intelekta risinājumi, kas tiek izmantoti e-komercijas vietņu un sistēmu izstrādē, kā arī tiek veikta to praktiska realizācija ar e-komercijas satvaru palīdzību. Darba mērķis ir noskaidrot, kā mākslīgā intelekta attīstība ietekmē mūsdienu e-komerciju, izpētīt visbiežāk pielietotos mākslīgā intelekta risinājumus e-komercijas vietņu un sistēmu izstrādē, noteikt to priekšrocības un trūkumus un īstenot tos praktiskā veidā. Pēc šo risinājumu realizācijas iegūtie rezultāti tiek apkopoti un salīdzināti ar tiem rezultātiem, kas iegūti bez mākslīgā intelekta risinājumu pielietoš…
A New Pt(II) Complex with Anionic s-Triazine Based NNO-Donor Ligand: Synthesis, X-ray Structure, Hirshfeld Analysis and DFT Studies
2022
The reaction of PtCl2 with s-triazine-type ligand (HTriaz) (1:1) in acetone under heating afforded a new [Pt(Triaz)Cl] complex. Single-crystal X-ray diffraction analysis showed that the ligand (HTriaz) is an NNO tridentate chelate via two N-atoms from the s-triazine and hydrazone moieties and one oxygen from the deprotonated phenolic OH. The coordination environment of the Pt(II) is completed by one Cl−1 ion trans to the Pt-N(hydrazone). Hirshfeld surface analysis showed that the most dominant interactions are the H···H, H···C and O···H intermolecular contacts. These interactions contributed by 60.9, 11.2 and 8.3% from the…
Effects of the microbial mineral plugging in the unbound layers of road construction. A mathematical model of simulation of the fatigue phenomenon in…
2008
A New Development in Online Marketing: Introducing Digital Inbound Marketing
2015
This paper addresses the conceptualization, scale development and scale validation related to the study of consumer engagement in online settings. It first reviews this concept and draws attention to the multidimensionality of the construct, considering the underlying cognitive, emotional, and behavioral dimensions of consumer engagement. Then, it presents the foundation of this concept in relationship marketing and adds support to this proposition. Further, it proposes the construction and psychometric assessment of a 37 scales that examine all three dimensions, based on an international sample of 110 respondents who engage with a brand on a social media network. Based on multiple and succ…
Molecular and supramolecular structures of self-assembled Cu(II) and Co(II) complexes with 4,4’-[6-(3,5-dimethyl-1H-pyrazol-1-yl)-1,3,5-triazine-2,4-…
2020
The molecular and supramolecular structures of [Cu(PTM)Cl2]*0.75MeOH (1), [Co(PTM)Cl2]; (2A) and [Co(PTM)Cl2(EtOH)]; (2B) complexes, where PTM is 4,4’-[6-(3,5-dimethyl-1H-pyrazol-1-yl)-1,3,5-triazine-2,4-diyl]dimorpholine, were presented. In complexes 1 and 2A, the Cu(II) and Co(II) are tetra-coordinated with a distorted tetrahedral coordination environment. In case of complex 2B, an additional ethanol molecule is found coordinated with Co(II) leading to a highly distorted penta-coordinated Co(II) complex. In all cases, the PTM ligand is acting as a bidentate NN-chelate. Hirshfeld surface analysis indicated the importance of H⋯H (49.0–55.1%), Cl⋯H (18.8–20.5%) and O⋯H (8.3–9.9%) contacts in…
Depresijas, trauksmes un stresa rādītāju izmaiņas jauniešiem pēc sarunbota lietošanas
2022
Darba mērķis bija pētīt sarunbota lietošanas ietekmi uz depresijas, trauksmes un stresa rādītājiem. Pētījumā piedalījās neklīniska izlase – 49 sievietes (kontroles grupa n=22, eksperimentālā grupa n=27), no 18 līdz 30 gadiem. Eksperimentālā grupa divas nedēļas lietoja sarunbotu, bet kontrolgrupa ieguva informāciju, lasot pašpalīdzības materiālu. Lai noteiktu rādītājus, pirms un pēc eksperimenta dalībnieces pildīja Depresijas, trauksmes un stresa skalu DASS21 (Lovibond & Lovibond, 1995, adaptācija latviešu valodā Vanags & Raščevska, 2015). Iegūtie rezultāti liecina, ka nav novērojama statistiski nozīmīgas atšķirības starp eksperimentālās un kontrolgrupas pirmajiem un otrajiem depresijas, tr…