Study of the Reaction Mechanism of Triazines and Associated Species for HS Scavenging.

Natural gas produced worldwide contains, among other compounds, HS and CO. Both gases in the presence of free water can generate problems of corrosion in pipes and subtract calorific value to this gaseous hydrocarbon. Natural gas containing HS and CO above the permissible limits should be treated to remove these components.

The dengue virus non-structural protein 1 (NS1) is secreted from infected mosquito cells via a non-classical caveolin-1-dependent pathway.

Dengue virus NS1 is a glycoprotein of 46-50 kDa that is conserved among flaviviruses, associates as a dimer to cell membranes and is secreted as a hexamer to the extracellular milieu. Recent evidence showed that NS1 is secreted efficiently from infected mosquito cells. To explore the secretory route of NS1 in mosquito cells, infected cells were treated with brefeldin A (BFA) and methyl-beta-cyclodextrin (MβCD).

Synthesis and characterization of rhodium complexes with phosphine-stabilized germylenes.

The reaction of phosphine-stabilized germylenes (1a,b) with dimer complex [Rh(2)(μ-Cl)(2)(COD)(2)] leads to the corresponding phosphine-germylene-Rh(I) complexes (2a,b). Interestingly, the stability of these complexes depends strongly on the nature of the substituent of the germylene fragment. Indeed, the complex (2a) with the chloro-germylene ligand isomerizes into a metallacycle rhodium complex (3a) via germylene insertion into the Rh-Cl bond, while the complex with the phenyl-substituted germylene (2b) was isolated and represents the first stable Rh(I)-germylene complex with a Rh-Cl bond.

Exploring the structure-solubility relationship of asphaltene models in toluene, heptane, and amphiphiles using a molecular dynamic atomistic methodology.

The solubility parameters, δ, of several asphaltene models were calculated by mean of an atomistic NPT ensemble. Continental and archipelago models were explored. A relationship between the solubility parameter and the molecule structure was determined.

The effects on boar sperm quality of dietary supplementation with omega-3 polyunsaturated fatty acids differ among porcine breeds.

The present study was undertaken to shed light on the relationship between boar sperm quality and dietary supplementation with omega-3 polyunsaturated fatty acids, which has been reported inconsistently in the literature. With this aim, such effects were evaluated and compared among three different porcine breeds: Duroc, Large-White, and Pietrain. Animals were randomly separated into two groups and fed either with a control diet or with a diet supplemented with omega-3.

Stability of intermediates in the glycerol hydrogenolysis on transition metal catalysts from first principles.

The hydrogenolysis reaction catalyzed by a transition metal solid catalyst is a potential way to transform glycerol to 1,2-propylene glycol or 1,3-propylene glycol, two important chemicals. We explore the thermodynamic profile of this reaction from first principle simulation, comparing Ni, Rh and Pd catalysts modeled by (111) surfaces. The stability of adsorbed reactants, dehydrated intermediates, and hydrogenated propylene glycol is compared, with a special focus on the factors controlling the selectivity of the reaction.

Young athletes' motivational profiles.

The aim of this study was to examine the relationship between motivational characteristics and dispositional flow. In order to accomplish this goal, motivational profiles emerging from key constructs within Achievement Goal Theory and Self-Determination Theory were related to the dispositional flow measures. A sample of 413 young athletes (Age range 12 to 16 years) completed the PMCSQ-2, POSQ, SMS and DFS measures.

The effects of knowledge management on surgeon behavior.

Knowledge management is an important process for health care researchers and administrators. The way we manage and transfer knowledge in an organization can have a substantial impact on behavior and performance. In this article, we examine the behavioral effects of transferring performance-efficiency knowledge to a group of hospital-based surgeons.