Search results for " Intermedi"

Can the introduction of Xenopus laevis affect native amphibian populations? Reduction of reproductive occurrence in presence of the invasive species

2010

Biological invasions are regarded as a form of global change and potential cause of biodiversity loss. Xenopus laevis is an anuran amphibian native to sub-Saharan Africa with strong invasive capacity, especially in geographic regions with a Mediterranean climate. In spite of the worldwide diffusion of X. laevis, the effective impact on local ecosystems and native amphibian populations is poorly quantified. A large population of X. laevis occurs in Sicily and our main aim of this work was to assess the consequences of introduction of this alien species on local amphibian populations. In this study we compare the occurrence of reproduction of native amphibians in ponds with and without X. lae…

Anionic Organic Guests Incorporated in Zeolites: Adsorption and Reactivity of a Meisenheimer Complex in Faujasites

2005

Zeolites are suitable microporous hosts for positively charged organic species, but it is believed that they cannot adsorb organic anions. Pure Meisenheimer complex, derived from reduction of 2,4-dinitroaniline with NaBH4, was adsorbed inside faujasite cavities. Evidence for the internal incorporation of this negatively charged reaction intermediate comes from 1) XPS elemental analysis as a function of the depth of penetration into the particle, 2) the remarkable blue shift in lambda(max) of the Meisenheimer complex adsorbed on zeolite (ca. 470 nm) as compared to that in acetonitrile (580 nm) and 3) from the lack of reactivity with size-excluded hydride-acceptor reagents. Evidence is provid…

Photocatalytic oxidation of phenol on TiO2 powders. A Fourier transform infrared study

1994

Abstract In the present paper a detailed investigation of a well known photoreaction, i.e. phenol photodegradation in the presence of TiO2, has been carried out. The Fourier transform infrared (FT-IR) technique has been used to characterize the catalyst surface and to follow the photoprocess by “in situ” measurements in a gas—solid regime, simulating the aqueous liquid—solid regime in which this photodegradation reaction has been usually carried out. The influence on the photoprocess of the surface hydroxylation of the catalyst has been investigated and the presence of some reaction intermediates has been revealed by FT-IR. The experimental results have demonstrated that the chosen gas—soli…

GW190521: A Binary Black Hole Merger with a Total Mass of 150  M⊙

2020

LIGO Scientific Collaboration and Virgo Collaboration: et al.

Financial Intermediation in Modern Europe Time: Evidence from Romania

2018

In a world governed by complex financial and economic systems, knowing the process of financial intermediation becomes a must. We face times when the process of financial intermediation seems to change nearly as a natural phenomenon. Financial intermediation stakeholders find constantly new ways to interact on behalf of obtaining funds they need and returns they expect and manage risks they try to avoid. The article’s aim is to take a snapshot of a financial intermediation process that manifests in Europe Modern Era, specifically in one EU member like Romania, in contrast with other two EU member – Bulgaria and Croatia. In the same time, we also outline the relation between financial develo…

The changing structure of banking firms and industry: an analysis through the European banks' balance sheets

2013

This paper analyzes the changing structure of the Italian and European banking firms and industry. The main aim is to identify the fundamental changes of the underlying economics of banking through the analysis of banks’ balance sheets. In this paper, we provide evidence that commercial banks have progressively moved from traditional banking to new forms of financial intermediation. The paper discusses the implications of this changes in terms of business models of banking firms, business operations of banks, structure of the financial system and banking industry. The research points out that the role of traditional bank is in decline. It is changing the fundamentals of banking business. Ba…

Essays on Risk Disclosure: Evidence from the Banking Industry

2021

Un bastion de la résistance aux IFRS, la macro-couverture

2016

The lingering memory of the opposition within the EU to the endorsement of IAS 39 is still very much alive, and the so - called “carve out” standard is a daily remembrance of this fact . It is most commonly associated with the widespread use, within this standard, of the fair - value. This presentation aims at studying another battlefield, the banking practice of macro - hedging and the way French banks are still accounting for it. To This topic will be dealt with through the economic models at stake and their impact on the financial statements, in order to observe how an entity may, or may not, account for this specific activity.

Corruption in international business: A review and research agenda

2020

Abstract We systematically reviewed the literature on corruption in international business (137 articles) for the last 17 years between 1992 and 2019. Additionally, we identified seven research streams in this growing literature: (1) the legislation against corruption, (2) the determinants of corruption, (3) combating corruption, 4) the effect of corruption on firms, (5) the political environment and corruption, (6) corruption as a challenge to existing theories of management, and (7) the effect of corruption on foreign direct investment and trade. Based on this review, we recommend that strong international laws are needed to minimize the negative impact of corruption on international busi…

Isolation and identification of intermediates from biodegradation of low chlorinated biphenyls (Delor-103).

2004

Abstract Microorganism Pseudomonas species P2 metabolizes polychlorinated biphenyls (PCBs) and biphenyl, producing the whole spectrum of intermediates, among them coloured intermediates, which are suitable for the monitoring of PCBs degradation by optical sensors. Knowledge of chemical structures and conditions of development of colour metabolites is necessary for application of optical analytical methods. The main goal of this work was the isolation and identification of intermediates from the biodegradation of the mixture of low chlorinated biphenyls (Delor-103), which is based on the solid phase extraction (SPE) of the whole mixture using LiChrolut EN cartridges, then silylation of the e…