Search results for "Hg"

The difficulty of applying exclusion criteria in ethical portfolios

2018

A main problem for socially responsible investors is deciding which companies should be included in their investment portfolio. Small investors may decide not to invest in companies they know are not behaving responsibly. Therefore, discredited companies will not be included in their portfolios, as they will understand those companies cannot be defined as ethical. To implement this procedure properly and apply it to big portfolios is a complex exercise which requires big amounts of information and the problems faced by investors applying such exclusion criteria to select their portfolio.

The National Income Between Monetary and Fiscal Actions

2013

Andersen and Jordan (1968) and Andersen (1971) argued that fiscal actions have a negligible effect on nominal income and can not sustain a stable and balanced economic growth. Also, they argued, along with other researchers who have embraced monetarism ideas from the Federal Reserve Bank of St. Louis, that the budget deficit presents negative effects in the economy that limit private investment. In this article, we analyzed the empirical relationship that is established between the tax actions and the long and short term national income in the U.S. economy and the economies of Eurozone.

Rapid oxidation of mercury (Hg) at volcanic vents: Insights from high temperature thermodynamic models of Mt Etna's emissions

2011

A major uncertainty regarding the environmental impacts of volcanic Hg is the extent to which Hg is deposited locally or transported globally. An important control on dispersion and deposition is the oxidation state of Hg compounds: Hg(0) is an inert, insoluble gas, while Hg(II) occurs as reactive gases or in particles, which deposit rapidly and proximally, near the volcanic vent. Using a new high temperature thermodynamic model, we show that although Hg in Etna's magmatic gases is almost entirely Hg(0) (i.e., gaseous elemental mercury), significant quantities of Hg(II) are likely formed at Etna's vents as gaseous HgCl2, when magmatic gases are cooled and oxidised by atmospheric gases. Thes…

Real-time simultaneous detection of volcanic Hg and SO2at La Fossa Crater, Vulcano (Aeolian Islands, Sicily)

2007

Measuring Hg/SO2 ratios in volcanic emissions is essential for better apportioning the volcanic contribution to the global Hg atmospheric cycle. Here, we report the first real-time simultaneous measurement of Hg and SO2 in a volcanic plume, based on Lumex and MultiGAS techniques, respectively. We demonstrate that the use of these novel techniques allows the measurements of Hg/SO2 ratios with a far better time resolution than possible with more conventional methods. The Hg/SO2 ratio in the plume of FO fumarole on La Fossa Crater, Vulcano Island spanned an order of magnitude over a 30 minute monitoring period, but was on average in qualitative agreement with the Hg/SO2 ratio directly measured…

Greenhouse gas emissions from membrane bioreactors

2018

Nowadays, it is widely accepted that wastewater treatment plants (WWTPs) are significant sources of greenhouse gas (GHG) emission, significantly contributing to anthropogenic sources of GHG emission. Among the GHG emitted from WWTPs, nitrous oxide (N2O) has been identified as the potentially major component, since its high global warming potential (GWP) is 298 times higher than that of Carbon dioxide (CO2) and also to its capability to react with stratospheric ozone, causing the ozone layer depletion. Up to now, most of the experimental investigations aimed at assessing the key mechanisms of N2O formation, as well as the operational conditions that can enhance its emission, have been carrie…

Investment Modelling at the Euro Area Level

2014

The aim of this research is to model the investment function at the level of the Euro zone. To achieve this main objective, we use and implement the structural equation modeling procedure for empirical analysis. Using this technique, the causal relationships established between investment and influencing factors are estimated and tested. Also, in the process of modeling structural equations, we examine empirical data sets related to the Euro area’s Member States.

FUNCTIONAL ANALYSIS OF THE HEALTH SECTOR IN ROMANIA

2015

This paper comprises an assessment of the Romanian health financing policy and a detailed analysis of income and expenditure trends over the past seven years. The current situation of the health system is evaluated by reviewing the existing health legislation and documents on public health policies from Romania and from abroad, by analyzing the official statistics (the Romanian Yearbook of Health Statistics, Who database) and by performing a healthcare system financial analysis. Although the financial efforts of the Romanian state to support the health system have increased, almost all the incomes and expenditures of the health care system having recorded significant increases, the populati…

A bioinformatic analysis of Lamin-A regulatory network: a perspective on epigenetic involvement in Huychinson-Gilford progeria syndrome

2012

THE CONTEMPORARY APPROACH OF TAXATION, FROM THE POINT OF VIEW OF ITS HISTORICAL EVOLUTION. THEORETICAL FRAMEWORK

2020

The topic of this research focuses on the study of the taxation process, which is one of the oldest activities in human history and has played a key role in civilized societies for thousands of years, developing its roots with the emergence of the state and trade relations between people. The research methodology is mainly based on the method of theoretical research and the method of reading the literature, being mainly a qualitative research, designed to provide a generous substrate in addressing the process of taxation in economic life. Thus, this theoretical research aims to briefly cover the most important historical stages of taxation in order to provide a comprehensive definition of t…

Preceding Host History of Conjugative Resistance Plasmids Affects Intra- and Interspecific Transfer Potential from Biofilm

2023

Conjugative plasmids can confer antimicrobial resistance (AMR) to their host bacterium. The plasmids disperse even between distantly related host species, rescuing the host from otherwise detrimental effects of antibiotics. Little is known about the role of these plasmids in the spread of AMR during antibiotic treatment. One unstudied question is whether the past evolutionary history of a plasmid in a particular species creates host specificity in its rescue potential or if interspecific coevolution can improve interspecific rescues. To study this, we coevolved the plasmid RP4 under three different host settings; solely Escherichia coli or Klebsiella pneumoniae, or alternating between both …