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4782. Interface-controlled growth of organic semiconductors on grapheneJinta Mathews, Saim Emin, Egon Pavlica, Matjaž Valant, Gvido Bratina, 2017, izvirni znanstveni članek Opis: We have studied submonolayer coverages of N,N-1H,1H-perfluorobutyl dicyanoperylenecarboxydiimide (PDIF-CN2) on mechanically exfoliated graphene transferred onto SiO2 substrates. Our atomic force microscopy (AFM) data show that PDIF-CN2 forms irregularly-shaped 1.4 nm-high islands. From the selected area diffraction performed with transmission electron microscope (TEM) we conclude that this height corresponds to π−π
stacks of molecules, which are inclined for 43° relative to the graphene surface. AFM also showed complete absence of PDIF-CN2 on single-layer graphene (SLG). Electric force microscopy revealed a marked difference in surface charge density between a single-layer graphene and bilayer graphene, with a higher surface charge on SLG than on the bilayer graphene. We associate this behavior with p−
type doping of graphene due to the electrostatic dipole induced by the molecular water layer present at the graphene/SiO2 interface. The crucial role of the graphene/SiO2 interface in determining growth of PDIF-CN2 was further confirmed by TEM examination of PDIF-CN2 deposited onto unsupported SLG.
Ključne besede: afm, organic semiconductors, graphene
Objavljeno v RUNG: 18.05.2017; Ogledov: 4896; Prenosov: 0
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4786. Avtorice pri srednješolski obravnavi književnosti : Konferenca Spolno zaznamovana neenakost: seksizem, moč in politikaZoran Božič, vabljeno predavanje na konferenci brez natisa Opis: Referat na podlagi članka Avtorice v slovenskih srednješolskih berilih. Razkriva spolno zaznamovano neenakost v srednješolskih učnih načrtih in berilih in kanonizacijske mehnaizme, povezane s spolno identiteto književnika.
Ključne besede: avtorice, slovenska književnost, berila, spolna neenakost, domače branje, matura, Ivan Cankar, Zofka Kveder
Objavljeno v RUNG: 15.05.2017; Ogledov: 4397; Prenosov: 0
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4787. Cortisol fetal fluids and newborn outcome in term pregnancy small-sized purebred dogs.Barbara Bolis, Tanja Peric, Alessandro Rota, Massimo Faustini, Maria Cristina Veronesi, 2016, objavljeni povzetek znanstvenega prispevka na konferenci Opis: In order to provide further information about canine perinatology, and because of the scarce
knowledge about fetal fluids composition in dogs, the present study was aimed to assess the cortisol
concentrations in fetal fluids collected from small-sized purebred newborn puppies born by elective
cesarean section, at term of pregnancy (Meloni et al, 2014). Furthermore we
assessed possible correlations of amniotic and allantoic cortisol concentrations and newborn outcome
at 24 hours of age and with the newborn gender. Fetal fluids cortisol concentrations were also
evaluated for correlation with maternal parity, litter-size, neonatal gender, birth weight and Apgar score
(Veronesi et al, 2009). The study, performed on 50 born alive, normal weighed puppies, without gross
physical malformation, showed that cortisol concentration was higher in allantoic than in amniotic fluid
(p<0.01), even if a strong positive correlation between the two fluids cortisol concentration was found
(p<0.0001; R=0.83). Interestingly, higher amniotic (p<0.05) cortisol concentrations were associated to
puppies not surviving at 24 hours after birth. Therefore it could be suggested that this parameter may
be useful for the recognition, at birth, of puppies needing special surveillance in the first day of age. In
relation to the other evaluated parameters, no correlations with amniotic or allantoic cortisol
concentrations were found. In conclusion, the present results showed that in small-sized purebred
puppies, born at term by elective caesarean section, the evaluation of amniotic cortisol concentration
seems useful for the detection of puppies that need special surveillance during the first 24 hours of age,
and should be coupled to the newborn evaluation by Apgar score.
Ključne besede: cortisol, fetal fluids, pregnancy, dog
Objavljeno v RUNG: 12.05.2017; Ogledov: 4385; Prenosov: 248
 Celotno besedilo (711,48 KB) |
4788. Prospects for Cherenkov Telescope Array Observations of the Young Supernova Remnant RX J1713.7−3946Fabio Acero, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2017, izvirni znanstveni članek Ključne besede: very-high energy gamma-rays, supernova remnants (SNR), SNR RX J1713.7−3946, Cherenkov Telescope Array
Objavljeno v RUNG: 10.05.2017; Ogledov: 4854; Prenosov: 0
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4789. Tantadrujevo iskanje sreče: od didaktike do interpretacijeZoran Božič, 2015, izvirni znanstveni članek Opis: Članek obravnava primer šolske interpretacije srednje dolgega pripovednega besedila, in sicer po načelu učne verige odlomkov z vprašanji za tesno branje. Ta didaktični pristop se je sicer na Slovenskem uveljavljal že pred drugo svetovno vojno, bolj sistematično uresničitev pa je doživel z izidom delovnih zvezkov za domače branje Zlati poljub in Poljub zlata leta 1998. Po skoraj dveh desetletjih šolske rabe je čas za natančnejšo presojo pristopa oz. njegove uporabnosti, tudi s pomočjo primerjave dveh učnih verig, nastalih po znani Kosmačevi noveli Tantadruj. Članek zaključuje interpretativni poskus, ki Tantadrujevo iskanje sreče povezuje s pripovedovalčevim iskanjem ustvarjalnega navdiha.
Ključne besede: Ciril Kosmač, učna veriga, tesno branje, domače branje, didaktika književnosti
Objavljeno v RUNG: 09.05.2017; Ogledov: 4715; Prenosov: 226
Celotno besedilo (842,78 KB) |
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