Abstract: A computer-implemented method comprising receiving a transaction request from a merchant server. In response to receiving the transaction request, the method includes requesting authentication from a computing device associated with a user payment account and a requesting that a merchant re-submit the transaction request. The method includes receiving an authentication parameter from the computing device, and determining that the authentication parameter matches an authentication parameter of the user payment account. The method includes receiving a re-submission of the transaction request from the merchant server and, based on the determination that the authentication parameter received from the computing device matches the authentication parameter associated with the user payment account, approving the transaction request.

Abstract: A computer-implemented method comprising receiving a transaction request from a merchant server. In response to receiving the transaction request, the method includes requesting authentication from a computing device associated with a user payment account and a requesting that a merchant re-submit the transaction request. The method includes receiving an authentication parameter from the computing device, and determining that the authentication parameter matches an authentication parameter of the user payment account. The method includes receiving a re-submission of the transaction request from the merchant server and, based on the determination that the authentication parameter received from the computing device matches the authentication parameter associated with the user payment account, approving the transaction request.

Abstract: A computer-implemented method comprising receiving a transaction request from a merchant server. In response to receiving the transaction request, the method includes requesting authentication from a computing device associated with a user payment account and a requesting that a merchant re-submit the transaction request. The method includes receiving an authentication parameter from the computing device, and determining that the authentication parameter matches an authentication parameter of the user payment account. The method includes receiving a re-submission of the transaction request from the merchant server and, based on the determination that the authentication parameter received from the computing device matches the authentication parameter associated with the user payment account, approving the transaction request.

Abstract: Increasing the density of barium sulphate from 3.5 g/m3 density to 4.40 g/m3 density transforms it into a product of high qualities due to the reaction process to which it is subjected, additionally this invention helps to recycle elements that are intended for confinement, making the process highly environmentally friendly. Applications and use of barium sulfate include in the oil industry and the pharmaceutical industry. In the paint industry, barium sulfate is used as as a pigment with acid resistance. In the automotive industry, it is used to replace asbestos as frictional product in the manufacture of brake pads and in the glass industry as a flux and brightener. As protection in X-ray rooms due to its high density it can be used to absorb radiation. In the pharmaceutical industry, it is used as a contrast medium in digestive system imaging.