Search results for "MEDIATION"
showing 10 items of 783 documents
Compatibility of surfactants with activated-persulfate for the selective oxidation of PAH in groundwater remediation
2017
Abstract Surfactants foam technology can improve the in situ remediation of hydrophobic organic contaminants by enhancing their solubility and the delivery of remediation chemicals. However, the presence of surfactants may impair the effectiveness of the selective oxidation of those contaminants. To tackle the issue, kinetics and selectivity of phenanthrene (PHE) oxidation in aqueous suspensions and its affecting factors including surfactant concentration (CS) and nature, temperature and persulfate (PS) concentration were studied. Significant differences in selectivity were observed between surfactants, reflecting Coulomb interactions with the anionic oxidizers. Lauryl Betaine (LB) stood ou…
Isolation, identification and metabolic characterization of hydrocarbonoclastic bacteria from a polluted harbour in Sicily (Italy)
2014
The petrochemical site of Priolo-Augusta-Melilli (Sicily, Italy), is a Site of National Interest (SIN) due to high levels of environmental contamination of the coastline and a specific "national program of environmental remediation and restoration" was developed in order to allow remediation and restoration of contaminated sites. In order to identify the key hydrocarbon degraders and explore the natural bioremediation potential of the contaminated area, a total of six sediment and sea water cores were collected inside the Priolo Harbour (SR, Italy). After biological (bacterial counts, PCR-DGGE) and chemical-physical characterization (quali-, quantitative measures of hydrocarbons and heavy m…
Interpreting in the Community and Workplace. A Practical Teaching Guide
2011
A handbook for trainers of community, public service and business interpreting with a wide range of classroom exercises and annotated dialogues Literature on the assessment of interpreters has grown rapidly in the emerging field of Community- and Public Service Interpreting, but there is still very little practical training material available. Numerous studies have demonstrated the importance of using trained rather than ad-hoc interpreters. This educational tool for trainers in all fields of dialogue interpreting hopes to fill precisely that gap. Although the focus is on two key areas, the legal and health sectors, the book also includes business interpreting, which is a source of employme…
Physics beyond colliders at CERN: beyond the Standard Model working group report
2019
The Physics Beyond Colliders initiative is an exploratory study aimed at exploiting the full scientific potential of the CERN's accelerator complex and scientific infrastructures through projects complementary to the LHC and other possible future colliders. These projects will target fundamental physics questions in modern particle physics. This document presents the status of the proposals presented in the framework of the Beyond Standard Model physics working group, and explore their physics reach and the impact that CERN could have in the next 10–20 years on the international landscape.
The human side of leadership: exploring the relationship between servant leadership, organisational facilitators and happiness at work
2018
Although human resource management (HRM) research has established a significant relationship between leadership styles and different attitudinal outcomes, few studies have considered the important role of organisational facilitators as a more proximal outcome of servant leadership to explain happiness at work (HAW). This paper explores the relationships between servant leadership, organisational facilitators and HAW, based on the leader-member exchange (LMX) and job-demands resources (JD-R) theories. Individual-level analyses from a sample of 189 machine operators revealed that organisational facilitators fully mediate the relationship between servant leadership and HAW. The discussion revi…
Potential use of grapevine cv Askari for heavy metal phytoremediation purposes at greenhouse scale
2020
Grapevine varieties possess desirable characteristics for phytoremediation purposes. We investigated the potential of grapevine cv Askari in phytoremediation of heavy metal (HM) pollutions. In total 80 grapevine seedlings were exposed to four levels of HM stress (mild, low, moderate, and severe) in greenhouse condition during two growing years (2018 and 2019). The HM concentrations (Zn, Cu, Cd, Cr, and Pb) were subsequently determined in the soils, roots, and grapevine aboveground parts (AGPs), and then phytoextraction and phytostabilization potential assessment indices, i.e., biological absorption coefficient (BAC), bioconcentration factor (BCF), and translocation factor (TF), were calcula…
Characterization of hydrocarbon-degrading and biosurfactant-producing Pseudomonas sp. P-1 strain as a potential tool for bioremediation of petroleum-…
2014
The Pseudomonas sp. P-1 strain, isolated from heavily petroleum hydrocarbon-contaminated soil, was investigated for its capability to degrade hydrocarbons and produce a biosurfactant. The strain degraded crude oil, fractions A5 and P3 of crude oil, and hexadecane (27, 39, 27 and 13 % of hydrocarbons added to culture medium were degraded, respectively) but had no ability to degrade phenanthrene. Additionally, the presence of gene-encoding enzymes responsible for the degradation of alkanes and naphthalene in the genome of the P-1 strain was reported. Positive results of blood agar and methylene blue agar tests, as well as the presence of gene rhl, involved in the biosynthesis of rhamnolipid, …
Terrorist Masculinities: Political Masculinity between Fiction, Facts, and Their Mediation
2018
This essay proposes that terrorism manifests itself in a relation that encompasses masculinity as well as the media. The origin of this relationship is the joint performativity of gender and acts of terror. This makes terrorism an instrument of social and political change. But in order to legitimize themselves, terrorism as well as masculinity require authorization by a phantasmagorical power. Drawing on the dominance of males among terrorists, this essay will look at an early depiction of terrorism in Conrad’s The Secret Agent, a contemporary representation in Sahota’s novel Ours Are the Streets and terrorism’s real manifestation in the Paris carnage of November 2015. It will show that in…
Assessment of Bioremediation Strategies for Explosives-Contaminated Sites
2013
Large amounts of soil and water have been contaminated with energetic compounds as a result of the manufacture, storage, testing, use and disposal of munitions as well as the use of nitroaromatic and nitramines as chemical feedstock for synthesis of pesticides, herbicides, dyes, and pharmaceuticals. Historically, TNT (2 methyl-1,3,5, trinitrobenzene) has been the most widely used military explosive (Nicklin et al. 1999; Kulkarni and Chaudhari 2007b). Since TNT is toxic, mutagenic, and also highly energetic (Rosenblatt et al. 1991), TNT contamination has a serious impact on the environment and also threatens human health (Maeda et al. 2007).
Remediation Practice at a Former Missile Base in Latvia
1998
Severe environmental pollution of soil and groundwater exists in Latvia from activities that took place at former Soviet military bases. Since 1994, the former owners of these territories have retaken possession of their lands and have started to use their properties for agriculture, exploitation of forests and recreation. These activities have increased the exposure of populations to toxic substances, with subsequent effects on human health.