A simple histochemical procedure for assessing relative amounts of neutral and acidic sugars in mucin glycoproteins, and its application in the study of cyclical changes ofhuman cervical mucins, is described. This procedure, the saponification/selective periodate oxidation/borohydride reduction/alcian blue pH 2-5/periodic acid Schiff (KOH/PA*/Bh/Ab 2-5/PAS) method, uses a selective oxidation st...

A simple histochemical procedure for assessing relative amounts of neutral and acidic sugars in mucin glycoproteins, and its application in the study of cyclical changes of human cervical mucins, is described. This procedure, the saponification/selective periodate oxidation/borohydride reduction/alcian blue pH 2.5/periodic acid Schiff (KOH/PA*/Bh/Ab 2.5/PAS) method, uses a selective oxidation s...

Microporous carbon compartments (MCCs) were developed via controlled carbonization of wheat flour producing large cavities that allow CO2 gas molecules to access micropores and adsorb effectively. KOH activation of MCCs was conducted at 700 °C with varying mass ratios of KOH/C ranging from 1 to 5, and the effects of activation conditions on the prepared carbon materials in terms of the characte...

In this Magazine and at the recent [1997] IEEE Antennas and Propagation Symposium, Ed Miller has raised some interesting questions about the interpretation for the radiation from simple, filamentary current distributions [l, 21. The length of the filament is h, and the current is time-harmonic with frequency w (freespace wave number ko = w/c = 2z/& ). He shows that for an electrically long fila...

A flexible carbon fiber aerogel with a very high surface area for supercapacitor application is reported by carbonization and chemical activation of low-cost natural cotton with KOH. The carbon fibers in the aerogel present as a twisted and tubular structure. Depending on the amount of KOH used in the activation process, the specific surface area of aerogels ranges from 1536 to 2436 m g−1, whil...

Background: Dermatophytosis is one of the most common cutaneous fungal infections of public health importance. Its prevalence differs from place to place and is influenced by environmental conditions, personal hygiene and habits. Aim: The present study was undertaken to assess the clinical and mycological profile of dermatophytic infection and identify the species of fungi using standard techni...

The authors report on the fabrication of 200 nm period blazed transmission gratings on silicon-on-insulator SOI wafers. These critical angle transmission CAT gratings require 3–5 m tall freestanding grating bars with a very high aspect ratio 100 and smooth sidewalls. In order to meet the challenging geometrical requirements, they modified and improved our previously reported process for the fab...

Surface texturization is well known as one of the major paths to improve the conversion efficiency of silicon solar cells by increasing the short-circuit current through the enhancement in antireflection property and effective photon trapping. Compared to the antireflection coating, it is more lasting and effective process. The anisotropic texturing of a (100) n-type monocrystalline silicon sur...

Sustainable porous carbons have been prepared by chemical activation of hydrothermally carbonized polysaccharides (starch and cellulose) and biomass (sawdust). These materials were investigated as sorbents for CO2 capture. The activation process was carried out under severe (KOH/precursor=4) or mild (KOH/precursor=2) activation conditions at different temperatures in the 600-800oC range. Textur...

A KOH-collagenase or simple KOH digestion method was employed for scanning electron microscope (SEM) studies of elastin components in the rat thoracic aorta, mouse urinary bladder, and human ductus deferens. Immersion of the fixed tissues in 30% KOH solution for 8-10 min at 60 degrees C, with or without subsequent collagenase treatment, successfully removed collagen fibrils and basal laminae wh...