Irritant Exudation from a Millipede

Irritant Gases ( Moderately Highly Water Soluble ) Irritant

mixture of suspended small particles, fumes, and gases. More than 400 toxic compounds have been demonstrated in the smoke of a typical house fire. Polyvinyl chloride, a component of many plastic goods, generates at least 75 different toxic products when burned. Of these toxic substances, carbon monoxide (CO) appears to be the most common fatal substance associated with fire victims. Thermal inh...

IBM's Millipede

Irritant Contact Dermatitis from Jet Fuel

A previously healthy 31-year-old man presented to the emergency department complaining of right foot pain and a non-pruritic rash with swelling for one day. He reported spilling jet fuel on his right lower leg at work the previous evening and had worn the fuel-soaked sock for another 10 hours. Physical examination demonstrated a coalescing erythematous macular rash with mild non-pitting edema i...

Millipede (Diplopoda) distributions: A review

In spite of the basic morphological and ecological monotony, integrity and conservatism expressed through only a small number of morphotypes and life forms in Diplopoda, among which the juloid morphotype and the stratobiont life form are dominant, most of the recent orders constituting this class of terrestrial Arthropoda are in a highly active stage of evolution. This has allowed the colonisat...

A Mathematical Model for Maple Sap Exudation

Physical Background. Sap exudation refers to the process whereby sugar maple trees (Acer saccharum) are capable of generating significant stem pressure in a leafless state, something that occurs to a lesser extent in only a few other related species such as birch and walnut. This exudation pressure is what causes maple sap to flow from a taphole in sufficient quantities to be harvested and proc...