The sensing characteristics of a yttria-stabilized zirconia (YSZ)-based sensor utilizing a NiO sensing-electrode (SE) towards toluene (C(7)H(8)) and interfering gases (C(3)H(6), H(2), CO, NO(2) and C(2)H(5)OH) were evaluated with a view to selective C(7)H(8) monitoring in indoor atmospheres. The fabricated YSZ-based sensor showed preferential responses toward 480 ppb C(2)H(5)OH, rather than the...

BACKGROUND It is possible to measure nitric oxide (NO) levels in exhaled air. The absolute concentrations of exhaled NO obtained by separate workers in similar patient groups and normal subjects with apparently similar techniques have been very different. A study was undertaken to determine whether changes in measurement conditions alter the concentration of exhaled NO. METHOD NO concentratio...

Meat is very rich and convenient source of nutrients including also a large extent of microelements. Contamination with heavy metals is a serious threat because of their toxicity, bioaccumulation and biomagnifications in the food chain. The lead concentrations depend on the environmental conditions and the food production methods. Ingestion of contaminants, especially heavy metals, by animals c...

In the present study, nitrogen doped biochar (N-PPB) and activated (AN-PPB) were prepared used for removing bisphenol A (BPA) in water through activating peroxymonosulfate. It was found from results that N-PPB exhibited superior catalytic performance over pristine since could brought about abundant active sites to structure. The non-radical singlet oxygen (1O2) determined be dominant species re...

The concept of incremental aerosol reactivity is introduced, and the incremental aerosol reactivities of a number of important anthropogenic and biogenic hydrocarbons are investigated for four ambient scenarios. The incremental aerosol reactivity, defined as a change in the secondary organic aerosol mass produced (in μg m-3) per unit change of parent organic reacted (in ppb), is a measure of th...

Human plasma protein binding (PPB) is an important pharmacokinetic property in drug design. Hologram quantitative structure-activity relationships (HQSAR) were conducted on a series of structurally diverse molecules with known PPB. The best statistical model (q = 0.72, r = 0.91) was used to predict the PPB of 62 test set compounds, and the predicted values were in good agreement with the experi...

BACKGROUND One of the complications of total knee arthroplasty (TKA) which has not yet been directly addressed is pseudo-patella baja (PPB). True patella baja (PB) is present when the length of the patellar tendon becomes shorter. PPB is present when the patella tendon is not shortened, but the level of the joint line is elevated. This study was conducted to assess PPB in TKA. MATERIAL/METHOD...