3611. Theory of Discourse and Semiotics : Foucault, Bakhtin, PeirceAleš Vaupotič, 2019, samostojni znanstveni sestavek ali poglavje v monografski publikaciji Opis: The paper begins with an analysis of a news article reporting
on scientific discovery. The scientific methods are considered from
the point of view of Peircean semiotics and the structuralist semiology.
The usefulness of the Peircean approach in literary scholarship is demonstrated
in the case of the realist novel as it is construed by Hans Vilmar
Geppert. By considering Geppert’s alignment of Bakhtin’s theory of the
novel with Peirce’s sign-theory the similarities and differences between
the discourse-theoretical (considering also Foucault’s work) and semiotic
approaches is outlined. In the second part of the text two cases of artistic
research are presented, the first one, the Friedhof Laguna project from
2003, being realised in the discourse-theoretical frameworks, and the
second one, 3-D visualizations of the NEWW Women Writers database
from 2017, being grounded in the Peircean semiotics. Ključne besede: C. S. Peirce, semiotics, F. de Saussure, semiology, M. M. Bakhtin, theory of discourse, H. V. Geppert, realist novel, scientific research, archive, artistic research, information visualization Objavljeno v RUNG: 12.04.2019; Ogledov: 3637; Prenosov: 0 Gradivo ima več datotek! Več... |
3612. Arhiv v umetnostiAleš Vaupotič, 2018, izvirni znanstveni članek Opis: Beseda arhiv vedno bolj zaseda sam center pojmovnega aparata
sodobne humanistike.. Njen pomen se širi tudi na področju umetniške
produkcije. Arhiv je predmet izjavljanja tako na ravni oblike
kot tudi na ravni (zunajumetnostne) snovi, s katero se komunikacijski
artefakt, npr. umetnina, sooča. V nadaljevanju bodo predstavljene
nekatere izmed danes relevantnih arhivskih perspektiv
na dejanskost: »arheologija vednosti« kot teoretski model, primeri
novomedijskih del kot digitalnih arhivov, umetnostnozgodovinski
pogled na »estetiko arhiva« kot pojav 20. stoletja, pahljača sodobnih
rab koncepta arhiva v umetnosti ter rekonceptualizacija dejanskosti
sáme prek modela arhiva na mikro (pravzaprav nano) in
makro ravni. Pred obravnavo teorije alegorije Walterja Benjamina
v drugem delu razprave, ki je vez med teorijo arhiva in teorijo
tehničnih medijev, bosta predstavljena dva značilna primera rabe
izraza realizem na področju fotografije (Allan Sekula) in na področju
novih medijev (Lev Manovič), ki sta povezana z vprašanjem
reprezentacije in arhivskega zbiranja. Ključne besede: sodobna umetnost, arhiv, arhivska umetnost, novi mediji, Walter Benjamin, Srečo Dragan Objavljeno v RUNG: 12.04.2019; Ogledov: 3381; Prenosov: 0 Gradivo ima več datotek! Več... |
3613. Synthesis of a Cu/ZnO Nanocomposite by Electroless Plating for the Catalytic Conversion of CO2 to MethanolMaja Pori, Iztok Arčon, Damjan Lašič Jurković, Marjan Marinšek, Goran Dražić, Blaž Likozar, Zorica Crnjak Orel, 2019, izvirni znanstveni članek Opis: The process of methanol synthesis based on the hydrogenation of CO2
was investigated over binary Cu/ZnO catalyst materials,
prepared by applying a novel electroless plating fabrication method. The activity of the produced catalytic samples
was determined at temperature range between 200 and 300 °C and the feedstock conversion data were supplemented with
a detailed microstructure analysis using high-resolution transmission electron microscopy (HRTEM), X-ray powder diffraction
(XRD) and Cu and Zn K-edge, X-ray absorption near-edge structure (XANES) measurements and extended X-ray
absorption fine-structure (EXAFS) measurements. It was confirmed that the disorder in the Cu crystallites created unique
geometrical situations, which acted as the additional reactive centres for the adsorption of the reactant molecule species.
Copper and zinc structural synergy (spill-over) was also demonstrated as being crucial for the carbon dioxide’s activation.
EXAFS and XANES results provide strong evidence for surface alloying between copper and zinc and thus the present results
demonstrate new approach applicable for explaining metal–support interactions. Ključne besede: EXAFS, CuZn alloy, Spillover mechanism, CO2 valorization, Electroless deposition method, Heterogeneous
catalysis Objavljeno v RUNG: 12.04.2019; Ogledov: 3589; Prenosov: 0 Gradivo ima več datotek! Več... |
3614. Parisina (learning chain)Zoran Božič, George Gordon Byron, Marjanca Prelog, drugo učno gradivo Opis: Didaktična prezentacija znamenite Byronove povesti v verzih. Ključne besede: učna veriga, angleška književnost, romantika, George Gordon Byron, povest v verzih, Ferrara, srednji vek, Italija, Marjanca Prelog Objavljeno v RUNG: 11.04.2019; Ogledov: 2867; Prenosov: 115 Celotno besedilo (680,15 KB) |
3615. Zakaj univerza v Novi Gorici in kje?Zoran Božič, 2019, poljudni članek Opis: Odmev na intervju z dr. Danilom Zavrtanikom, rektorjem Univerze v Novi Gorici, in sicer v sklopu štirih prispevkov pod naslovom Univerza in kampus v solkanskem kamnolomu. Ključne besede: univerza, lokacija, kamnolom, Solkan, geografsko vozlišče, zahodna narodnostna meja, reka Soča Objavljeno v RUNG: 10.04.2019; Ogledov: 3124; Prenosov: 125 Celotno besedilo (616,95 KB) |
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3617. ASSESSMENT OF CORTISOL AND DHEA CONCENTRATIONS IN THE GRIFFON VULTURE (Gyps fulvus) FEATHERS TO EVALUATE ITS HEALTH CONDITIONGian Nicola Frongia, Tanja Peric, Marco Muzzeddu, Fiammetta Berlinguer, Giovanni Leoni, Valentina Satta, Cristina Bergamin, Marcello Franchini, Antonella Comin, Salvatore Naitana, Alberto Prandi, 2018, objavljeni povzetek znanstvenega prispevka na konferenci Opis: During their life, birds face several challenges which can threaten the stability of physiological functions. These situations typically trigger a cascade of endocrine secretions involving the hypothalamic–pituitary–adrenal (HPA) axis, and resulting in the release of both cortisol and corticosterone also in birds. The use of a non-invasive approach to collect samples of biological material derived from natural populations represents a greatly combination for an improvement of knowledge avoiding handling animals. Steroid concentrations in feathers are mainly acquired from the capillary around the follicle during the long period of feather grown reflecting their bloodstream concentrations. Accordingly, a chronic HPA axis activation could be assessed using molted feathers cortisol concentrations. Another hormone, dehydroepiandrosterone (DHEA), is secreted by adrenals and it could be assessed in molted feathers. This study was aimed to evaluate the feasibility of using feathers cortisol and DHEA concentrations to provide a retrospective assessment of the activity of the HPA axis in griffon vulture acquired for health monitoring purposes. For this, we introduced two groups of
animals with a known health condition: one group composed by griffons that have experienced a long-term physiologically compromised period (PC group; n=8) and the other group composed by griffons physiologically not compromised (CTRL group; n=9). The feathers cortisol and DHEA analyses were carried out using RIA [1,2] adapted for feathers. The results revealed different feather hormone concentrations between the two groups of animals. The feathers cortisol had a median value higher in the PC group than in the CTRL group, with cortisol concentrations showing a central value 1.6 times higher in those animals that suffered a long-term physiological impairment. The PC group showed also (Kruskal-
Wallis test) higher feather concentrations of DHEA (P=0.01) than the CTRL group. Pearson’s correlation coefficients were used to examine the associations between cortisol and DHEA, showing no correlation between cortisol and DHEA feather concentrations in the PC group (r=0.18, P=0.34) and a moderate positive correlation in the CTRL group (r=0.51, P=0.011). In conclusion, our study reveals that molted feathers can be an interesting way to evaluate the physiological status of wild animals by using a non-invasive approach. Our analyses reveal that in addition to cortisol also DHEA could be evaluated to better understand the relationships between these hormones and to determine the resilience condition of wild species. Ključne besede: CORTISOL, DHEA, GRIFFON VULTURE, Gyps fulvus, FEATHER Objavljeno v RUNG: 09.04.2019; Ogledov: 3120; Prenosov: 0 Gradivo ima več datotek! Več... |
3618. A NEW TOOL TO EVALUATE CORTISOL CONCENTRATIONS IN ANIMAL HAIRAntonella Comin, Tanja Peric, Mara Colzani, Francesco De Vecchi, Cristina Bergamin, Alberto Prandi, 2018, objavljeni povzetek znanstvenega prispevka na konferenci Opis: The study of cortisol in hair requires the use of a highly sensitive assay. To date, hair cortisol concentrations (HCC) have been evaluated with different analytical methods as Radio Immune Assay (RIA), Enzyme Immunossay (EIA), Enzyme Linked Immunosorbent Assay (ELISA), ChemiLuminescent Immunoassay (CLIA) and High Performance Liquid
Chromatography with Mass Spectrometry (HPLC/MS) or Liquid Chromatography with Tandem Mass Spectrometry (LC-MS/MS). Amplified luminescent proximity homogeneous assay (AlphaLISA) is an ELISA-like, nonradioactive technology first reported in 1994 [1]. This technology allows the quantitative detection of molecules of interest in a light-induced chemiluminescence immunoassay using a microplate without wash step. The aim of the study was to compare RIA with AlphaLISA method and examine the sensitivity in evaluating cortisol concentrations in animal hair of the Cortisol AlphaLISA kit (PerkinElmer, USA),
originally suggested for the analysis of buffer and serum samples. The study has been carried out on 4 samples of calf, 4 samples of foal and 8 samples of sheep hair. After washing with isopropanol, two extracts were obtained from each hair sample. One extract has been evaluated for HCC by RIA as previously described [2,3]. The second extract has been reconstituted with the buffer provided by the Cortisol AlphaLISA Kit and HCC evaluated by the use of this commercially available kit. The preliminary results indicate that the Cortisol AlphaLISA Kit is capable to detect cortisol also in hair samples with high sensitivity, with a detection limit of 17 pg/ml. Intra- and inter-assay coefficients of variation (CVs) were 4.0% and 9.0%, respectively. Cortisol concentrations ranged between 1.31 and 16.94 pg/mg, 6.30 and 57.65 pg/mg, and 2.16 and 45.08 in calf, foal and sheep hair, respectively. The HCC obtained by Cortisol AlphaLISA Kit and RIA showed a good correlation (r=0.79, p<0.01).
Considering the possibility to use a low amount of extracted sample, its no-washing procedure and the performances showed, we can conclude that the Cortisol AlphaLISA Kit can be considered an excellent tool to evaluate cortisol concentrations also in hair derived from animal species. Ključne besede: hair, cortisol, analyses, method, AlphaLISA, Amplified luminescent proximity homogeneous assay Objavljeno v RUNG: 09.04.2019; Ogledov: 3402; Prenosov: 0 Gradivo ima več datotek! Več... |
3619. 17-ß-Estradiol and Testosterone concentrations in claws of puppies up to 60 days of age.Jasmine Fusi, Tanja Peric, Cristina Bergamin, Maria Cristina Veronesi, 2018, objavljeni povzetek znanstvenega prispevka na konferenci Opis: The current 30% of canine perinatal mortality (Tonnessen et al., 2012) claims the need to deepen the knowledge about this phase, characterized by long-term hormonal and metabolic changes, that could benefit of long time-frame methods of investigation, reducing the quantity of samplings and thus respecting animal welfare (Veronesi et al., 2015). Indeed, apart from the well-known invasiveness of blood samplings, the necessary repeated collection of feces, urine and saliva, providing punctual information, could be stressful for the newborns and their mothers with negative effects on health status and maternal behavior.
Given that sexual steroid hormones were reported to have an influence on health outcomes and development already from the perinatal period (Frey et al., 2017), in this work 17-β-Estradiol (E2) and Testosterone (T) concentrations were assessed from the claws of dogs up to 60 days of age, to identify possible endogenous biomarkers.
Ten male and 10 female puppies, viable and healthy, born by elective cesarean section, were enrolled. Samplings were performed by trimming claws at birth, and the regrowth at 30 and 60 days of age after the breeder or the owner signed an informed consent. Then, E2 and T concentrations were analyzed by RIA (Veronesi et al., 2015) and a possible effect of gender evaluated by ANOVA.
All the hormonal claws concentrations showed a significant (p<0.001) drop from birth to 30 and 60 days of age, while no significant changes were observed between 30 and at 60 days of age (Table 1). No influence of the newborns’ gender was found.
Because of the higher levels of E2 and T observed at birth and at 30 days of age, it could be supposed that a source of production could be the placental and maternal compartments. However, the direct involvement of the fetus itself could not be excluded, given the reported accumulation from the nail capillary bed of those hormones (de Berker et al., 2007) and the production of sexual steroid hormones by feline fetal gonads (Braun and Jewgenow, 2017). Ključne besede: Dog, Puppy, Claws, 17-ß-Estradiol, Testosterone. Objavljeno v RUNG: 09.04.2019; Ogledov: 3199; Prenosov: 0 Gradivo ima več datotek! Več... |
3620. Hair dehydroepiandrosterone in newborn beef calves from birth up to 10 months of ageMonica Probo, Tanja Peric, Massimo Faustini, Alberto Prandi, Antonella Comin, 2018, objavljeni povzetek znanstvenega prispevka na konferenci Opis: Although steroidogenesis in maternal, placental and fetal compartments is interdependent, the maternal and fetal hypothalamic-pituitary-adrenal (HPA) axes represent separate biological systems, with dehydroepiandrosterone (DHEA) recognized as the main fetal steroid. Fetal steroids are likely to influence development and have long-term effects on HPA function. Hair analysis represents a promising methodological approach for the non-invasive measurement of steroids, allowing for a retrospective analysis of the total exposure to steroids over time, and avoiding the influence of acute events or circadian fluctuations (Schury et al. 2017, BMC Psychiatry 17:213). Hair coat DHEA (hcD) concentrations have been investigated in cows (Peric et al. 2017, Livestock Sci 202:39–43), but no studies
have been performed on newborn calves. Hair samples of 12 beef
calves (7 males, 5 females) were collected by shaving at calving (T0) and monthly up to 10 months of age (T1-T10), only on the re-growth area. Hair DHEA was analyzed by RIA2. Statistical analysis revealed that hcD concentrations in calves were influenced by age, with higher levels at T1 and T2 compared to the other samples (p < 0.05). HcD levels were not influenced by newborn gender, birth weight and Apgar score. These data demonstrate that DHEA is quantifiable in the hair coat of newborn calves, and that hcD levels are influenced by the age of calves. The higher accumulation of DHEA was detected from birth to 2 months of age, suggesting that DHEA continues to be secreted by the newborn calf also beyond birth and could be involved in the events occurring during the first months of age. Ključne besede: hair, dehydroepiandrosterone, cattle, calf Objavljeno v RUNG: 09.04.2019; Ogledov: 3162; Prenosov: 0 Gradivo ima več datotek! Več... |