The rapid development of X-ray micro-computed tomography (micro-CT) opens new opportunities for 3D analysis particle and grain-size characterisation, determination densities shape factors, estimation mineral associations liberation locking. Current practices in are based on 2D representations leading to systematic errors the extrapolation volumetric properties. New quantitative methods tomograp...

the aim of this cross-sectional study was to explore the association of crystalline silica aerosols exposure with malondialdehyde in blood serum and urinary neopterin and explore their potential as biomarkers of their external exposure. nonsmoking and healthy male glass sandblasters and control population were randomly selected for this study. all groups were monitored for their personal exposu...

Numerous living organisms form minerals. These biogenic minerals, or biominerals, are composite materials containing an organic matrix and nanoor micro-scale amorphous or crystalline minerals. In this chapter we will review the molecular aspects of biomineralization and describe as completely as is currently possible the organic-mineral interface, the location in which organic-mineral interacti...

HeLa cells in tissue cultures infected with types 3, 4, or 7 of adenovirus (RI-APC virus) were studied in order to correlate certain histochemical and electron microscopic findings. Adjacent thin (ca. 0.05 micro) and thick (2-4 micro) sections of osmium-fixed, methacrylate-embedded cells were cut; by mapping the sections the same cells could be identified with both the electron and the light mi...

Dielectric resonators are key elements in many applications in micro to millimeter wave circuits, including ultra-narrow band filters and frequency-determining components for precision frequency synthesis. Distributed-layered and bulk low-loss crystalline and polycrystalline dielectric structures have become very important for building these devices. Proper design requires careful electromagnet...

As silicon photovoltaics evolve towards thin-wafer technologies, efficient optical absorption for the near-infrared wavelengths has become particularly challenging. In this work, we present a solution that employs combined micro- and nano-scale surface textures to increase light harvesting in the near-infrared for crystalline silicon photovoltaics, and discuss the associated antireflection and ...

Rabbit antisera were prepared against crystalline chicken lysozyme and characterized by immunodiffusion, immunoelectrophoresis, inhibition of enzyme activity, and quantitative micro-complement fixation. Lysozyme was purified by Sephadex G-75 chromatography from the egg whites of 17 species of birds in the order Galliformes and was tested for reactivity with anti-chicken lysozyme. The chicken an...

We investigated the autonomous bottom-up fabrication of three-dimensional honeycomb cellulose structures, using Gluconacetobacter xylinus as a bacterial nanoengine, on cellulose honeycomb templates prepared by casting water-in-oil emulsions on glass substrates (Kasai and Kondo, Macromol. Biosci., 4, 17-21, 2004). The template film had a unique molecular orientation state along the honeycomb fra...