Search results for " footprint"
showing 10 items of 100 documents
The behavioral responses of the egg parasitoid Ooencyrtus telenomicida to semiochemicals from first and second trophic level
2009
In this study the responses of females of the egg parasitoid Ooencyrtus telenomicida (Vassiliev) (Hymenoptera: Encyrtidae) to volatile and contact chemicals from its host Nezara viridula (L.) (Heteroptera: Pentatomidae) and from host plant Solanum lycopersicum L. were investigated in a Y-tube olfactometer and in open arena. Our results in the Y-tube olfactometer tests showed that: (1) female wasps were attracted to volatiles from adult host virgin male and to volatiles from a host mated female, showing a clear preference for the volatiles emitted from the former; volatiles from host virgin females did not attract O. telenomicida females; (2) only volatiles produced by host-damaged plant com…
Rolling resistance and traffic delay impact on a road pavement life cycle carbon footprint analysis
2017
The application of Life Cycle Assessment (LCA) to road pavements has been continuously evolving and improving over the last years, however there are several limitations and uncertainties in the introduction of some components in the framework, such as road pavement rolling resistance—in terms of pavement surface properties—and traffic delay during maintenance activities. This paper analyses the influence of methodological assumptions and the model used to estimate the increased emissions for traffic delay and road pavement rolling resistance on the results of an LCA. The Greenhouse Gases (GHG) emissions related to these two phases of a pavement LCA will be calculated for a UK case study, us…
Environmental assessment of a new building envelope material derived from urban agriculture wastes : the case of the tomato plants stems
2023
Abstract Purpose Decarbonizing cities is one of today’s biggest challenges. In this regard, particular attention has been paid on improving the environmental performance of buildings. In this framework, this work consists in assessing the environmental impact of an innovative building envelope component derived from urban agriculture (UA) wastes. In fact, rooftop UA seems to be a possible solution to the rising food demand due to increasing urban demographic growth. Consequently, rooftop UA wastes need to be treated in sustainable ways. Methods This study aims to determine the carbon footprint and embodied energy of a new infill wall material, derived from UA wastes produced by a building r…
Assessing the Ecological Footprint of an Urban Transportation System
2003
The ecological footprint methodology is here applied to the urban transport system of the Italian town of Palermo (Sicily). By only using the current running fleet, a synthetic indicator represented by the "equivalent bio-productive" land, corresponding to the actual transport configuration, will be built up. This indicator can be usefully adopted for ranking various options in the urban context referring, for example, to different arrangements of the transportation demand between private and public means. This could allow local administrations to environmentally hierarchizing alternative plans concerning the urban transportation
Combining Membrane and Zero Brine Technologies in Waste Acid Treatment for a Circular Economy in the Hot-Dip Galvanizing Industry: A Life Cycle Persp…
2023
AbstractAn innovative approach of combining membrane and zero brine technologies for a joint treatment of industrial liquid waste is investigated regarding its environmental impacts compared to the existing liquid waste treatment. The object of investigation is the generation of waste acid solution by a hot dip galvanizing plant in Sicily, Italy. The waste acid solution contains hydrochloric acid, iron and zinc, which makes it a hazardous waste according to EU classifications. Environmental impacts are studied for two scenarios in the Tecnozinco hot-dip galvanizing plant in Sicily, Italy: (i) the current process of pickling with linear disposal of waste acid and (ii) the pickling combined w…
Design, synthesis and biological evaluation of new oligopyrrole carboxamides linked with tricyclic DNA-intercalators as potential DNA ligands or topo…
2007
In the context of the design and synthesis of minor groove binding and intercalating DNA ligands some new oligopyrrole carboxamides were synthesized. These hybrid molecules (combilexins) possess a variable and conformatively flexible spacer at the N-terminal end. As intercalating tricyclic systems acridone, acridine, anthraquinones and in a special case iminostilbene terminate the N-terminal end of the pyrrole chain. The cytotoxicity was examined by the NCI antitumor screening, furthermore, biophysical as well as biochemical studies were performed in order to get some information about the DNA binding properties and topoisomerase inhibition effect of this new series of molecules.
Hybrid Energy Storage for Underground Mining EV
2021
One of the main concerns when it comes to contributions to the carbon footprint is the consumption of fuel by vehicles, more specifically that of mining vehicles. One solution to this problem is replacing the combustion engine vehicles with electric vehicles. This also poses the problem of low power density. This paper proposes a solution of using supercapacitors and hybrid capacitors with the aim of investigating how they can affect the performance of electric vehicles. For this purpose, a background of fuel consumption and alternative solutions to the problem are discussed, a prototype was designed and built. It was found that when supercapacitors and hybrid capacitors were used in combin…
Bibliometric analysis and literature review of ecotourism: Toward sustainable development
2021
In recent decades, rising consumer interest in visiting relatively less commercialized natural destinations has facilitated the growth of ecotourism. Yet the research on ecotourism is fragmented, presenting gaps in the current understanding of this topic. This study performs a bibliometric analysis to assimilate the present knowledge from a total of 878 articles published in six reputable outlets between 1990 and 2019. The study analyzed citation chains and coauthorship networks to acknowledge contributions from select authors, organizations, and countries. Next, a cocitation analysis of the prior literature identified four major thematic areas: ecological preservation, residents' interests…
Environmental aspects of the implementation of bioeconomy in the Baltic Sea Region: An input-output approach
2019
Abstract Bioeconomy is one of the main aspects of the Baltic Sea Region (BRS) Programme. However, at the national level, bioeconomy strategies are still under development in several countries. As environmental aspects are particularly important to ensure the sustainability of bioeconomy, the aim of this paper is to analyse changes in consumption- and production-based bio-resource, land and water footprints for the period of 2011–2015 and couple them with economic indicators, to assess the efficiency of bioeconomy in the BSR countries. The results show significant differences in consumption- and production-based bio-resource, land and water footprints among the BSR countries; these differenc…
Ecological footprint decomposition analyses: the case of Latvia
2012
This paper presents results from empirical decomposition analyses of Latvia’s national Ecological Footprint in the housing, transport and food consumption sectors. It draws attention to growth, structural and intensity effects causing changes in the ecological footprint and presents the strategies to be employed by policy makers to overcome these effects.