2331. Elena Vogman: Dance of Values. Sergei Eisenstein’s Capital ProjectGal Kirn, 2020, recenzija, prikaz knjige, kritika Ključne besede: Sergei Eisenstein, Karl Marx, metamorphosis, (re)valorisation, value form, capital, representation of Capital, ideology critique, dialectic, commodity fetishism, film.
Objavljeno v RUNG: 17.12.2020; Ogledov: 2265; Prenosov: 0
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2337. Short-term physiological and biometrical responses of Lepidium sativum seedlings exposed to PET-made microplastics and acid rainSara Pignattelli, Andrea Broccoli, Manuela Piccardo, Serena Felline, Antonio Terlizzi, Monia Renzi, 2021, izvirni znanstveni članek Opis: Plastics enter in terrestrial natural system primarily by agricultural purposes, while acid rain is the result of
anthropogenic activities. The synergistic effects of microplastics and acid rain on plant growth are not known. In
this study, different sizes of polyethylene terephthalate (PET) and acid rain are tested on Lepidium sativum, in two
separate experimental sets. In the first one we treated plants only with PET, in the second one we used PET and
acid rain together. In both experimentations we analyzed: i) plant biometrical parameters (shoot height, leaf
number, percentage inhibition of seed germination, fresh biomass), and ii) oxidative stress responses (hydrogen
peroxide; ascorbic acid and glutathione). Results carried out from our experiments highlighted that different
sizes of polyethylene terephthalate are able to affect plant growth and physiological responses, with or without
acid rain supplied during acute toxicity (6 days).
Short description: This study showed that different sizes of PET microplastics affect physiological and biometrical
responses of Lepidum sativum seedlings, with or without acid rain; roots and leaves responded differently
Ključne besede: Polyethylene terephthalate
Acid rain
Oxidative stress
Biometrical response
Lepidium sativum
Objavljeno v RUNG: 16.12.2020; Ogledov: 2367; Prenosov: 0
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2338. Sodelovanje umetnosti v inovacijah za prihodnost : okrogla mizaMarko Hren, Dragica Marinič, Miha Ciglar, Darko Šuman, Peter Purg, 2020, druge monografije in druga zaključena dela Opis: Umetnost in druge kreativne discipline bodo odločilno pripomogle k skupni boljši prihodnosti, še posebej, ko dobijo ključno mesto tako v družbenih kot tudi v gospodarskih inovacijah.
Okrogla miza bo soočila poglede na področje interdisciplinarnega inoviranja ter ponudila nekaj primerov dobrih praks. Sogovorniki bodo z različnih vidikov pretresli možnosti vzpostavljanja radikalno odprtega okolja ter globokih povezav za omogočanje in spodbujanje pozitivno disruptivnih inovacij.
Objavljeno v RUNG: 15.12.2020; Ogledov: 2170; Prenosov: 63
 Povezava na celotno besedilo
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2339. Ga2Se3 Nanowires via Au-Assisted Heterovalent Exchange Reaction on GaAsFederico Berto, Niloofar Haghighian, Katja Ferfolja, Sandra Gardonio, Mattia Fanetti, Faustino Martelli, Valentina Mussi, Vladimir G. Dubrovskii, Igor V. Shtrom, Alfonso Franciosi, Silvia Rubini, 2020, izvirni znanstveni članek Ključne besede: nanowires, Gallium arsenide, Gallium Selenide, gold, molecular beam epitaxy
Objavljeno v RUNG: 15.12.2020; Ogledov: 2467; Prenosov: 0
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2340. Polysaccharide-based films and coatings for food packaging: A review.Patricia Cazón, Gonzalo Velazquez, Jose A. Ramirez, Manuel Vazquez, 2017, pregledni znanstveni članek Opis: The accumulation of synthetic plastics, mainly from food packaging, is causing a serious environmental problem. It is driving research efforts to the development of biodegradable films and coatings. The biopolymers used as raw material to prepare biodegradable films should be renewable, abundant and low-cost. In some cases, they can be obtained from wastes. This review summarizes the advances in polysaccharide-based films and coatings for food packaging. Among the materials studied to develop biodegradable packaging films and coatings are polysaccharides such as cellulose, chitosan, starch, pectin and alginate. These polysaccharides are able to form films and coatings with good barrier properties against the transport of gases such as oxygen and carbon dioxide. On the other hand, tensile strength and percentage of elongation are important mechanical properties. Desirable values of them are required to maintain the integrity of the packed food. The tensile strength values showed by polysaccharide-based films vary from each other, but some of them exhibit similar values to those observed in synthetic polymers values. For example, tensile strength values of films based on high amylose starch or chitosan are comparable to those values found in high-density polyethylene films. The values of percentage of elongation are the main concern, which are far from the desirable values found for synthetic polymers. Researchers are studying combinations of polysaccharides with other materials to improve the barrier and mechanical properties in order to obtain biopolymers that could replace synthetic polymers. Functional polymers with antimicrobial properties, as that the case of chitosan, are also being studied.
Ključne besede: Cellulose, Chitosan, Starch, Water vapour permeability, Tensile strength, Percentage of elongation at break
Objavljeno v RUNG: 14.12.2020; Ogledov: 2397; Prenosov: 0
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