Background: In every job and profession, following ethical norms is a necessity. But in all professions, there is a possibility that the owners of words will do their work in a wrong way by deviating from the ethical norms. Meanwhile, some legal professions are among high-risk professions in terms of the possibility of moral harm. One of these groups are judges. This issue makes the need for mo...

The stock selection problem is one of the major issues in the investment industry, which is mainly solved by analyzing financial ratios. However, considering the complexity and imprecise patterns of the stock market, obvious and easy-to-understand investment rules, based on fundamental analysis, are difficult to obtain. Fundamental and technical analyses are two common methods for predicting th...

A ring R is called right א0-injective if every right homomorphism from a countably generated right ideal of R to RR can be extended to a homomorphism from RR to RR. In this note, some characterizations of א0-injective rings are given. It is proved that if R is semiperfect, then R is right א0injective if and only if every homomorphism from a countably generated small right ideal of R to RR can b...