It is proven that a certain class of positive maps in the matrix algebra $M_n$ consists optimal maps, i.e. from which one cannot subtract any completely map without loosing positivity. This provides generalization seminal Choi $M_3$.

This study examined the specificity of disgust in predicting avoidance in blood/injury (BI) phobia. Participants high (n=38) and low (n=46) in BI fear completed measures of disgust across multiple domains and severity of BI-related fear. They then completed three randomly presented behavioral avoidance tasks (BATs) that consisted of exposure to a 15'' severed deer leg (BI task), a live spider (...

This study determined the value relevance of assets and liabilities after the adoption of IFRS among listed Nigerian firms. Ohlson Model (1995) model of stock price regressions tested the relationship between assets and liabilities with the stock price, which has been widely adopted by accounting researchers. A sample of 126 firms listed in Nigeria stock market is used for the study. Data is co...

Container transport requires real-time control and a high degree of cooperation to alleviate disturbances perform smoothly without unnecessary environmental impact monetary losses. The involved operators are, however, often reluctant cooperate as they fear loosing valuable information autonomy, eventually leading their clients choose another (cooperating) operator. In this paper we propose co-p...

Following treatment of fear-related disorders, return of fear remains a common occurrence. Currently, the presence of safety signals during treatment procedures is considered harmful, yet recent findings have demonstrated that certain safety signals (social-support figures) lead to enhanced fear extinction and thus might reduce return of fear. Here, we tested the effect of social-support-figure...