development and optimisation of fast, efficient, quantitative, economic and environmentally friendly analytical extraction techniques for the extraction clean up, and pre-concentration in the quantification of 16 usepa priority polycyclic aromatic hydrocarbons (pahs) in contaminated soils have been carried out. three different extraction methods (soxhlet, ultra sonication and mechanical shaking...

Biocontrol, or Biological Control, can be defined as the use of natural organisms, or genetically modified, genes or gene products, to reduce the effects of undesirable organisms to favour organisms useful to human, such as crops, trees, animals and beneficial microorganisms. This strategy of control is ecologicaly clean and compatible with different models of agriculture: organic, biological a...

This document contains several corrections and remarks for the Dynamic Cooperative Cleaners problem and for the CLEAN and SWEEP cleaning protocols, which were presented in previous works [1, 2].

We consider ancestry labeling schemes: Given a rooted tree T , assign a binary string (label) to each node, such that given the labels of any two nodes, one can determine whether the first is an ancestor of the second in T . Recently, Fraigniaud and Korman [STOC’10] showed that such labels can be assigned using log n+O(log log n) bits per label, solving a long standing open question and matchin...

1098-4402= Commissioning of two large coherent light facilities (XFELs) at SLAC and DESY should begin in 2008 and 2011, respectively. In this paper we look further into the future, hoping to answer, in a very preliminary way, two questions. First: What will the next generation of XFEL facilities look like? Believing that superconducting technology offers advantages such as high quality beams wi...

The Clean Development Mechanism (CDM) established under the Kyoto Protocol allows industrialized Annex I countries to offset part of their domestic emissions by investing in emissions-reduction projects in developing non-Annex I countries. We present a novel CDM modeling framework which can be used in computable-general-equilibrium (CGE) models to quantify the sector-specific and macroeconomic ...

The European Topic Centre on Air and Climate Change (ETC/ACC) is a consortium of European institutes under contract of the European Environmental Agency DISCLAIMER This ETC/ACC Technical Paper has not been subjected to European Environment Agency (EEA) member country review. It does not represent the formal views of the EEA.

Among the most enduring challenges for scientists and engineers interested in catalysis is the development of clean energy conversion processes. Much of the research reported in the first 100 volumes of Catalysis Today has been devoted to this subject; e.g., synthesis of clean fuels, catalytic combustion, natural gas utilization, and control of emissions from stationary and mobile sources, for ...