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4102. Hemichrome Determination by Thermal Lensing with Polyethylene Glycols for Signal Enhancement in Aqueous SolutionsViktoriya Galimova, Mladen Franko, Mikhail Proskurnin, Mingqiang Liu, 2018, original scientific article Abstract: The thermal lens technique is proposed for the determination of total hemoglobin in the form of reversible hemichrome. The conditions were optimized (concentration of sodium dodecyl sulfate, 2 mM) to attain the maximum sensitivity with the use of polyethylene glycols as signal enhancers. For polyethylene glycols with molecular weights 1500–35000 Da in a concentration range of 5–15% w/w (5–25 mM), the influence on thermal lens signal enhancement was estimated. It is shown that the use of 5% w/w polyethylene glycol 2000 provides the maximum increase in the thermal lens enhancement factor (by 40%) in comparison with unmodified aqueous solutions. The detection limit of iron(II) tris(1,10-phenanthrolinate) as a model system is 60 nM. Under these conditions, the thermal lens detection limit of hemichrome is 10 nM, which shows a 15-fold enhancement compared to spectro- photometry. Modification of the medium with polyethylene glycols decreases the limit of detection of hemichrome determination by 15% in comparison with unmodified aqueous solutions due to better reproducibility for the range of concentrations from 0.02 to 0.9 μM.
Keywords: Hemoglobin, hemikrom, optotermična spektroskopija, etilenglikol, spektrometrija s toplotnimi lečami
Published in RUNG: 16.04.2018; Views: 4177; Downloads: 0
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4106. NIč ni resnično, vse je dovoljeno : O pasteh internetaBarbara Pregelj, Blažka Müller Pograjc, Miha Poberaj, Boris Veler, Robert Tekavec, Primož Pobevšek, other performed works Abstract: moderiranje okrogle mize v mladinskem klubu Jedro, 2. marca 2018 ob 17h
Keywords: internet, literatura, odvisnost, kazniva dejanja, internetna varnost
Published in RUNG: 10.04.2018; Views: 4198; Downloads: 0
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4107. Predstavitev projekta veSeLOL branjeBarbara Pregelj, Lara Brankovič, Ana Cukjati, Vanesa Vodovnik, Maja Orel, Barbara Zlobec, unpublished conference contribution Abstract: V prispevku predstavljamo teoretski in praktično-izvedbeni okvir ter nekatere rezultate projekta veSeLOL branje, predvsem nekaj novejših didaktizacij slovenskih klasičnih besedil, kot so: Tržačan, Na klancu, Martin Krpan, Matkova Tina, Povodni mož, Tantadruj, Gosenica, Dogodek v mestu Gogi, Tilka in Hiša Marije Pomočnice. Didaktizacije so nastale ob uporabi bralnomotivacijskih strategij M. Sarto. Avtorice didaktizacij so uvodoma pregledale, kako navedena besedila obravnava šolska praksa in učbeniki, dodale svoj predlog z uporabo bralnomotivacijske strategije, to pa še nadgradile z dodatnimi aktivnostmi. Pod mentorstvom Barbare Pregelj so jih priravile študentke Univerze v Novi Gorici Ana Cukjati, Lara Brankovič, Vanesa Vodovnik in Maja Orel ter Osimska štipendistka Barbara Zlobec.
Keywords: motiviranje za branje, slovenski klasiki, M. Sarto, Univerza v Novi Gorici
Published in RUNG: 10.04.2018; Views: 4513; Downloads: 0
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4108. Grapes to wine: the nexus between berry ripening, composition and wine styleKatja Šuklje, Guillaume Antalick, Campbell Meeks, John W. Blackman, Alain Deloire, Leigh Schmidtke, 2017, published scientific conference contribution Keywords: ACOMDIM, metabolomics, terroir, maturation
Published in RUNG: 04.04.2018; Views: 4186; Downloads: 0
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