The role that H 2 S plays in the global sulfur cycle has been studied extensively recent years. This paper focuses on influence of released from gas hydrates and establishes a one-dimensional mathematical model to calculate amount dissociation present multiple layers Qiongdongnan Basin China. results show sulfate methane transition zone covers an area about 100 km contains 2.3 × 10 12 g pyrite,...

Quantitative risk management allows for qualitative notions such as optimality and expected returns to be put on a quantitative footing. It complements subjective risk considerations with an objective, statistical perspective. Broadly, quantitative risk management consists of two distinct elements. The first is measurement, which involves quantifying the overall risk of a portfolio. The second ...

Recently, we developed quantitative structure-activity relationships (QSARs) for the toxicity to Folsomia candida of eight chlorobenzenes (CB) and four chloroanilines (CA). These QSARs used freely dissolved soil interstitial water concentrations determined by solid-phase microextraction (SPME), and corresponding with the EC10 and EC50 for effects on reproduction. Chemical concentrations however...

All veterinary biologicals licensed in Canada must be shown to be pure, potent, safe and effective. A risk-based approach is used to evaluate the safety of all biologicals, whether produced by conventional methods or by molecular biological techniques. Traditionally, qualitative risk assessment methods have been used for this purpose. More recently, quantitative risk assessment has become avail...

Background: Market orientation refers to a type of modern marketing that emphasizes the creation of continuous value for customers and buyers. This research was conducted with the aim of presenting a new model of market orientation with an emphasis on moral implications. Method: The present study was applied and part of mixed research (qualitative-quantitative). The statistical population incl...