The Effects in the Upper Airway of Heat and Exposure to Combustion Byproducts of Burning Materials on Larynx of Firefighters.

Introduction: High exposure to heat and combustion byproducts is associated with health problems and an increased risk of cancer.

Objective: To study the effects of heat and smoke derived from burning on the upper airway of firefighters.

Methods: Thirteen firefighters underwent a 4-week training program in Compartment Fire Behavior Training simulators while working with live fire, heat, and smoke from pallets and oriented-strand board sheet burns.

L-Glutamine Supplementation Improves the Benefits of Combined-Exercise Training on Oral Redox Balance and Inflammatory Status in Elderly Individuals.

Although regular combined aerobic-resistance exercises can ameliorate the inflammatory status and redox balance in elderly population, it is unclear whether protein or specific amino acid supplementation could improve such benefits. Therefore, we aimed to evaluate the inflammatory status and redox indexes through of the saliva of 34 elderly subject nonpractitioners (NP group, 73.3 ± 6.

Liquid mixtures of xenon with fluorinated species: xenon + sulfur hexafluoride.

The vapor-liquid equilibrium of binary mixtures of xenon + SF6 has been measured at nine temperatures from 235.34 to 295.79 K and pressures up to 6.

Deviations from ideality in mixtures of two ionic liquids containing a common ion.

Excess molar volumes of six binary mixtures composed of two ionic liquids of the 1-methyl-3-alkyl-imidazolium bis(trifluoromethylsulfonyl)amide family -- ([C(m)()mim] + [C(n)()mim])[NTf(2)] with n and m ranging from 2 to 10 -- were measured for several compositions at 298 and 333 K. Similarly, three other binary systems containing [C(4)mim](+) (1-methyl-3-butylimidazolium) as a common cation have been studied: [C(4)mim]([NTf(2)] + [PF(6)]), [C(4)mim]([NTf(2)] + [BF(4)]) and [C(4)mim]([BF(4)] + [PF(6)]). Thus, the mixing process of two distinct ions of equal sign embedded in a constant field network of a given counterion was analyzed.