The purpose of this study is to measure how much the stock prices decline ofter ex-dividend date in Tehran Stock Exchange.Another parpose of Charger the study is to investigate whether the marginal tax rates of stock holders have any effect on the dividend policy of the companies listed in Tehran Stock Exchange.The results showed that the decline i

In the Polish literature on the subject, prostitution is analyzed from various theoretical perspectives, but, first of all, from the perspective of social pathology.This approach makes the researchers focus mainly on the social maladjustment of women providing sex services and the reasons for their violation of the normative order.In my ethnographi

High-precision maps are widely applied in intelligent-driving vehicles for localization and planning tasks.The vision sensor, especially monocular cameras, has become favoured in mapping approaches due to its high flexibility and low cost.However, monocular visual mapping suffers from great performance degradation in adversarial illumination enviro

In engineering, the fault data unevenly distribute and difficultly share, which causes that the existing fault diagnosis methods cannot recognize the newly added fault types.An intelligent diagnosis method for machine fault is proposed based on federated learning.Firstly, the local fault diagnosis models diagnosing the existing fault data and the n

Background.Despite a significant number of theoretical and experimental studies, the issue of determining the threshold levels of pulsed acoustic exposure, when exceeded, their negative effect on the morphofunctional state of a biological object begins to appear.Traditionally, in laboratory conditions, such estimates are obtained in experiments on