Abstract Though riparian areas generally have a shallow water table and higher soil moisture compared to upslope areas, climatic seasonality may trigger repellency in tropical forests, which, if persistent, could negatively affect essential ecosystem functions related resources protection such as reduced overland-flow, sediment transport, nutrient filtration. The objective of this study was ans...

BACKGROUND Temperature, humidity, vision, and particularly odor, are external cues that play essential roles to mosquito blood feeding and oviposition. Entomological and behavioral studies employ well-established methods to evaluate mosquito attraction or repellency and to identify the source of the blood meal. Despite the efficacy of such methods, the costs involved in the production or acquis...

as certain surfactants in cleaning products. Of course, fragrance is also used to mask biological malodors such as those produced in the scalp and underarm area. Fragrance materials themselves have benefits outside their use in fragrance. For example, extensive research suggests that some fragrance chemicals, particularly monoterpenes, have effective anticancer and other pharmacological propert...

Nanometric titanium dioxide (TiO2) powder has been treated on the surface with octyltriethoxysilane in a supercritical carbon dioxide (scCO2) medium. The surface silanization conferred water repellency to the TiO2 powder. The effect of operating variables of the supercritical silanization process (pressure, temperature) on the surface characteristics of the material was analyzed. Finally, the e...

Superhydrophobic surfaces have received increasing attention due to their excellent water repellency, but the fragile stability of superhydrophobic coatings has been a huge hindrance applications. In this work, we constructed layer mullite fibers on surface ceramic substrate using high-temperature molten salt. Then, obtained with contact angle greater than 150° via soaking sample an alcoholic s...

Silviculturists use a variety of techniques, including repellents, to reduce browse damage by white-tailed deer (Odocoileus virginianus) to valuable eastern hardwood seedlings. Systemic selenium, sodium selenite, was evaluated with captive whitetailed deer for its repellency in white ash (Fraxinus americana) and black cherry (Prunus serotina) seedlings. Selenium had no effect in reducing browsi...

Contact: Dr. Charles F. Palmer Ethox Chemicals [email protected] T +1 864 277 1620 They are used in many industrial and architectural applications. The hydrophobic nature of the alkyd polymer makes them good choices when water repellency is important. However, formulating alkyds into low VOC (volatile organic compound) waterborne coatings results in a number of problems, which can be minimised ...