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Laura Monica Gorghiu

Bio: Laura Monica Gorghiu is an academic researcher. The author has contributed to research in topics: Science education & Responsible Research and Innovation. The author has an hindex of 11, co-authored 90 publications receiving 484 citations.


Papers
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TL;DR: The paper presents the results of the implementation in the classroom of 17 Modules which involve problem-based learning paradigm, with important achievements in students’ understanding of Science concepts, but also in taking ownership of their learning.

93 citations

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TL;DR: In this paper, a chemiluminescence study on thermal degradation of some polyethylenes (LDPE, LLDPE and HDPE) on seven metal trays in the presence of triazines as stabilisers was carried out.

60 citations

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TL;DR: In this article, the authors highlight the effectiveness of Problem-Based Learning (PBL) through presenting some of the best educational practices implemented by the Romanian Science teachers who participated in the “PROFILES - Education through Science” Continuous Professional Development Programme.

26 citations

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TL;DR: In this paper, the stabilization effect of various carbon materials: [C60]fullerene, three adducts with levopimaric acid, two sorts of carbon black and nanocarbon on HDPE, LDPE and LLDPE have been studied by chemiluminescence at 180, 190 and 200 °C.

24 citations

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TL;DR: In this article, the thermal degradation of polyethylenes (one type of high density PE and two of low-density PE) was studied by isothermal chemiluminescence.

22 citations


Cited by
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TL;DR: A review of the state-of-the-art on biodegradable polymers can be found in this paper, where the salient features of the design and properties of these polymers are discussed.
Abstract: Recent trends in biodegradable polymers indicate significant developments in terms of novel design strategies and engineering to provide advanced polymers with comparably good performance. However, there are several inadequacies in terms of either technology or cost of production especially in the case of applications in environmental pollution. So, there is a need to have a fresh perspective on the design, properties and functions of these polymers with a view to developing strategies for future developments. The paper reviews the present state-of-art on biodegradable polymers and discusses the salient features of the design and properties of biodegradable polymers. Special emphasis is given to the problems and prospects of (1) approaches adopted to make non-biodegradable synthetic polymers such as polyethylene biodegradable and (2) biodegradable polymers and copolymers made from renewable resources especially poly(lactic acid) based polymers and copolymers which are emerging as the candidate biodegradable materials for the future.

559 citations

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TL;DR: In this paper, the current scenario of the plastic recycling technology is reviewed in order to provide the reader with an in-depth analysis with respect to the pyrolysis of plastic waste as obtained in the current recycling technology.
Abstract: Due to the depleting fossil fuel sources such as crude oil, natural gas, and coal, the present rate of economic growth is unsustainable. Therefore, many sources of renewable energy have been exploited, but the potentials of some other sources such as plastics waste are yet to be fully developed as full scale economic activity. Development and modernization have brought about a huge increase in the production of all kinds of plastic commodities, which directly or indirectly generate waste due to their wide range of applications coupled with their versatility of types and relatively low cost. The current scenario of the plastic recycling technology is reviewed in this paper. The aim is to provide the reader with an in-depth analysis with respect to the pyrolysis of plastic waste as obtained in the current recycling technology. As the calorific value of the plastics is comparable to that of hydrocarbon fuel, production of fuel from plastic waste would provide a good opportunity to utilize the waste as a better alternative to dumpsites. Different techniques of converting plastics waste into fuel including thermal and catalytic pyrolysis, microwave-assisted pyrolysis and fluid catalytic cracking are discussed in detail. The co-pyrolysis of plastics waste with biomass is also highlighted. Thus, an attempt was made to address the problem of plastic waste disposal as a partial replacement of the depleting fossil fuel with the hope of promoting a sustainable environment.

439 citations

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TL;DR: A review of the latest advances in antioxidant active food packaging, with special emphasis on antioxidant release systems, can be found in this paper, where various methods for incorporating antioxidant compounds in the package, the issues to be considered in packaging design, and various methods employed to evaluate the antioxidant effectiveness of active antioxidant materials are reviewed.
Abstract: Lipid oxidation is, together with microbial growth, the main cause of spoilage of a great variety of foods, such as nuts, fish, meats, whole milk powders, sauces and oils. It causes a loss of both sensorial and nutritional quality of foods and may even lead to the formation of toxic aldehydes. Some strategies that are commonly used to limit the extent of lipid oxidation of packaged foods are direct addition of antioxidants or packaging under modified atmospheres in which oxygen presence is limited. A novel alternative to these methods is antioxidant active packaging, whose main advantage is that it can provide sustained release of antioxidants during storage. This article reviews the latest advances in antioxidant active food packaging, with special emphasis on antioxidant release systems. The various methods for incorporating antioxidant compounds in the package, the issues to be considered in packaging design, and the various methods employed to date to evaluate the antioxidant effectiveness of active antioxidant materials are reviewed.

436 citations

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TL;DR: In this paper, the authors delineate the definition of degradability of polymers used in agriculture and place emphasis on the controversial issues regarding biodegradability issues of some of these polymers.
Abstract: The growing use of plastics in agriculture has enabled farmers to increase their crop production. One major drawback of most polymers used in agriculture is the problem with their disposal, following their useful life-time. Non-degradable polymers, being resistive to degradation (depending on the polymer, additives, conditions etc) tend to accumulate as plastic waste, creating a serious problem of plastic waste management. In cases such plastic waste ends-up in landfills or it is buried in soil, questions are raised about their possible effects on the environment, whether they biodegrade at all, and if they do, what is the rate of (bio?)degradation and what effect the products of (bio?)degradation have on the environment, including the effects of the additives used. Possible degradation of agricultural plastic waste should not result in contamination of the soil and pollution of the environment (including aesthetic pollution or problems with the agricultural products safety). Ideally, a degradable polymer should be fully biodegradable leaving no harmful substances in the environment. Most experts and acceptable standards define a fully biodegradable polymer as a polymer that is completely converted by microorganisms to carbon dioxide, water, mineral and biomass, with no negative environmental impact or ecotoxicity. However, part of the ongoing debate concerns the question of what is an acceptable period of time for the biodegradation to occur and how this is measured. Many polymers that are claimed to be ‘biodegradable’ are in fact ‘bioerodable’, ‘hydrobiodegradable’, ‘photodegradable’, controlled degradable or just partially biodegradable. This review paper attempts to delineate the definition of degradability of polymers used in agriculture. Emphasis is placed on the controversial issues regarding biodegradability of some of these polymers.

356 citations