To examine colloid transport in geochemically heterogeneous porous media at a scale comparable to field experiments, we monitored the migration of silica-coated zirconia colloids in a two-dimensional layered porous media containing sand coated to three different extents by ferric oxyhydroxides. Transport of the colloids was measured over 1.65 m and 95 days. Colloid transport was modeled by an a...

The development of methods for the fabrication of advanced colloid materials is important for both today’s and future technologies. A number of different schemes for obtaining suspensions of colloid particleswith defined size, structure, and properties have been proposed.1-4 One general method of particular interest is the use of colloid-sized substrates and templates for fabricating complex pa...

Figure 1. Intermediate-power microscopy shows the eosinophilic colloid-filled follicles at the periphery. In many follicles in the center, the epithelium has been replaced by the inflammatory reaction and the colloid is reduced or absent. Microabscess formation with foreign-body-type giant cells can be seen. Figure 2. A: The colloid is engulfed by the ring of foreign-body-type giant cells with ...

Milia are small, white, benign keratinous cysts that are frequently encountered. Multiple eruptive milia are rare, and are characterized by the development of milia that are more extensive in number and distribution than would be expected in primary milia. We report a case of a 19-year-old girl with tiny, white papules in her axillae and on her abdomen with a review of the relevant literature.

Milia are benign, superficial keratinaceous cysts that present as fine, small white papules. Milia en plaque is a rare, challenging-to-treat variant most often seen in the posterior auricular region. A total of 9 cases of milia en plaque have been reported in the pediatric literature to date. We report a case of milia en plaque of the nose in a 7-year-old boy, a novel site of involvement in the...

Allozyme variation in the forest grass Milium effusum L. was studied in 21-23 populations within each of two equally sized densely sampled areas in northern and southern Sweden. In addition, 25 populations from other parts of Eurasia were studied for comparison. The structure of variation was analysed with both diversity statistics and measures based on allelic richness at a standardised sample...

A temperature-responsive colloid–polymer system undergoes liquid–liquid phase separation and forms all-aqueous core–shell droplets microcapsules.