A multidisciplinary approach has been adopted in order to investigate the bioaccumulation of metals and organometals in macrobenthic populations. A complete method coupling a sampling strategy and classification of benthic organisms with a performant analytical procedure for the analysis of both metals and organometals has been developed. A single sample preparation method using a TMAH extracti...

Abstract A multi-analytical study was designed to characterise historical coated plaster surfaces. The method applied investigate the surface coatings of nineteenth-century cast tombstone Presbyter Bruno that belongs Victoria and Albert Museum collection. At first, selected samples object were examined with Visible Light Reflectance Ultra-Violet Fluorescence Optical Microscopy (VLR- UV f -OM re...

Biomarkers are biologically produced organic compounds that can be used to identify sources of organic matter in geologic materials (soils, sediments, rocks). This information allows scientists to track important environmental and ecological changes over time and space. Some of the most commonly used biomarkers are a class of lipids called fatty acids. These compounds resist degradation and are...

Paper and paperboard products accounted for twenty eight percent of the total municipal solid waste generated in the United States in 2009. And while the recovery rate of these products is sixty two percent, the remaining twenty six million tons (38%) represent a potentially useful carbon sink that can be exploited to mitigate the release of greenhouse gases from these landfills. However, to da...

Sedimentary organic matter is formed by diagenesis (reactions in sediments up to 60°C, Tegelaar et al., 1989) and catagenesis (those >100°C induced by thermal cracking, Tissot and Welte, 1984) of biological material introduced during deposition from primary producers. Over 90% of this sedimentary organic matter is a non-hydrolyzable (i.e., immune to acid–base hydrolysis) macropolymer called ker...

Figure 2: n-GaSb/Al2O3 MOSCaps without (a) and with (b) InAs showing improvement in C-V characteristics with the InAs interface layer. Figure 1: TEM image showing the GaSb/InAs/Al2O3 gate stack with EDS scan to confirm the InAs interface layer. A highly reactive GaSb surface was passivated by growing a thin epitaxial InAs capping layer to improve the GaSb/high-k oxide interface. MOSCap structur...

The low-dimensional electron confinement effects in nanostructures is one of motivation for development of new research areas in growth technologies and materials engineering. To test this fundamental concept, one-dimentional nanostructures, such as nanotubes and nanowires stay good candidates. Thus nanoelectronics is certainly now the branch with the most significant commercial impact as predi...

This work is an extension of that performed by Alan, et al. [1, 2], investigating the effect of surface characteristics on the strength of nanoscale silicon (Si) structures. Progress, utilizing CNF, during the 2011/2012 year has been focused in two main areas. We have replicated the process of Alan, et al., to fabricate nanoscale Si beams with current equipment and techniques, and have made pro...