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Pau, France

The University of Pau and Pays de l'Adour was founded in 1972. It is a multi-site establishment, based in Pau but also in Bayonne, Tarbes and Mont-de-Marsan in the Adour river basin Wikipedia.

Schaumloffel D.,University of Pau and Pays de lAdour
Journal of Trace Elements in Medicine and Biology | Year: 2012

This review gives an overview on the analysis of inorganic nickel species and their toxic effects. Based on the analytical procedure applied inorganic nickel species are usually classified in soluble, sulfidic, metallic and oxidic nickel fractions. Only few works were attempting a chemical characterization of the different nickel compounds in each fraction. This general classification in four nickel species groups is widely used in toxicological studies dealing with nickel particulate matter in workplace air. Compared to the general population, occupationally exposed people have a higher risk of respiratory tract cancer due to inhalation of nickel at their workplace in the nickel-producing or using industries. High cancer risk is related to less soluble oxidic and especially sulfidic nickel species in refinery dust. In contrast, within the general population the most harmful health effect related to nickel exposure is allergic contact dermatitis due to prolonged skin contact with nickel. Absorption processes of nickel species and molecular mechanisms of nickel toxicity are briefly outlined. © 2012 Elsevier GmbH. Source

IR spectral striking points that deserve particular attention for characterization of adsorbed species on cationic alkali-zeolites. © 2012 the Owner Societies. Source

Regnault-Roger C.,University of Pau and Pays de lAdour | Vincent C.,Agriculture and Agri Food Canada | Arnason J.T.,University of Ottawa
Annual Review of Entomology | Year: 2012

In recent years, the use of essential oils (EOs) derived from aromatic plants as low-risk insecticides has increased considerably owing to their popularity with organic growers and environmentally conscious consumers. EOs are easily produced by steam distillation of plant material and contain many volatile, low-molecular-weight terpenes and phenolics. The major plant families from which EOs are extracted include Myrtaceae, Lauraceae, Lamiaceae, and Asteraceae. EOs have repellent, insecticidal, and growth-reducing effects on a variety of insects. They have been used effectively to control preharvest and postharvest phytophagous insects and as insect repellents for biting flies and for home and garden insects. The compounds exert their activities on insects through neurotoxic effects involving several mechanisms, notably through GABA, octopamine synapses, and the inhibition of acetylcholinesterase. With a few exceptions, their mammalian toxicity is low and environmental persistence is short. Registration has been the main bottleneck in putting new products on the market, but more EOs have been approved for use in the United States than elsewhere owing to reduced-risk processes for these materials. © 2012 by Annual Reviews. All rights reserved. Source

Cairon O.,University of Pau and Pays de lAdour
Physical Chemistry Chemical Physics | Year: 2012

We focus on the analysis of N 2 adsorption on NaY faujasite investigated by means of both the FTIR and volumetric measurements. We examine how these two approaches, when combined, can lead to a more advanced quantitative description featuring the understanding of gas adsorption both at the molecular and the macroscopic scales. For this task, we describe hereafter the method used and how we circumvented drawbacks encountered along the way. Finally we share new insight obtained by working step by step towards the construction of the first quantitative molecular isotherms of N 2 on a NaY zeolite. © This journal is the Owner Societies 2012. Source

Cravo-Laureau C.,University of Pau and Pays de lAdour
Research in microbiology | Year: 2011

Little is known about microbial communities involved in hydrocarbon degradation, whether it be their structural and functional diversity or their response to environmental constraints such as oxygen fluctuation. Here, current knowledge of the impact of diversity and redox oscillations upon ecosystem processes is reviewed. In addition, we present the main conclusions of our studies in this field. Oxic/anoxic oscillations had a strong impact upon bacterial community structures, influencing their ability to degrade hydrocarbons and their capacity to reduce hydrocarbon toxicity. Furthermore, a decrease in functional diversity has a strong impact on pollutant degradation. Copyright © 2011 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved. Source

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