Abstract: An application switching method includes: obtaining a first touch operation performed by a user on a content display page of a first application; determining whether the first touch operation satisfies a predetermined operation condition; displaying a navigation page in at least a partial area on the content display page if the predetermined operation condition is satisfied, where the navigation page includes at least a first entry icon of an applet of the first application; obtaining a second touch operation performed by the user to select the first entry icon on the navigation page; and switching, based on the second touch operation, to an applet page corresponding to the first entry icon selected by the user.

Abstract: There are provided a touch display panel and a touch display device, the touch display panel includes: a display substrate including a plurality of pixel regions and a spacer region spacing the plurality of pixel regions apart from each other; a black matrix located on a light-exiting side of the display substrate, an orthographic projection of the black matrix on the display substrate being located in the spacer region; and a touch control structure layer including a first touch pattern layer located on the light-exiting side of the display substrate, the first touch pattern layer including a plurality of first metal lines, where an orthographic projection of each first metal line on the display substrate is located in the orthographic projection of the black matrix on the display substrate, and the first metal lines are in contact with the black matrix.

Abstract: Systems and methods for an online donation marketplace are provided. An oiler of a non-cash item from a donor to be sold on an online open market is received. The offer includes a pricing structure and a selected charity. The item can be any of a service, a good, or an experience. The offer is displayed to potential buyers, and when buyer requests to make a purchase, the transaction is facilitated and the donated payment is provided to the selected charity. The buyer and donor receive recognition for their charitable activity. Sometimes the donor is a merchant that offers a deal in exchange for a required donation. In other embodiments, a seeker requests an item to be donated by a donor. The seeker can be a buyer, or may be simply a beneficiary of the transaction.

Abstract: A single photons communication method and system is provided. In an example, an information loading module in a transmitting terminal of the single photons communication system may code to-be-sent target information as a corresponding target modulation frequency according to a pre-saved relationship between information and modulation frequency, and perform frequency modulation on a quantum state of communication light generated by a light source by using the target modulation frequency so that the transmitting terminal may send out modulated target communication light.

Abstract: A single photons communication method and system is provided. In an example, an information loading module in a transmitting terminal of the single photons communication system may code to-be-sent target information as a corresponding target modulation frequency according to a pre-saved relationship between information and modulation frequency, and perform frequency modulation on a quantum state of communication light generated by a light source by using the target modulation frequency so that the transmitting terminal may send out modulated target communication light.

Abstract: The invention relates to a substituted phenylpiperazine aryl alkanol derivative represented by the following general formula and its salt and hydrate, wherein C1 and C2 represent chiral carbon atoms, and the compound is one of the six isomers: (1RS, 2SR), (1RS, 2RS), (1R, 2S), (1S, 2S), (1R, 2R) or (1S, 2R); and R, R1, R2, R3 and Ar are as defined in the specification. The derivative is non-opioid analgesic, has good analgesic effect and relatively small side effects. The invention also relates to a composition comprising the derivative and its use.

Abstract: The invention relates to a substituted phenylpiperazine aryl alkanol derivative represented by the following general formula and its salt and hydrate, wherein C1 and C2 represent chiral carbon atoms, and the compound is one of the six isomers: (1RS, 2SR), (1RS, 2RS), (1R, 2S), (1S, 2S), (1R, 2R) or (1S, 2R); and R, R1, R2, R3 and Ar are as defined in the specification. The derivative is non-opioid analgesic, has good analgesic effect and relatively small side effects. The invention also relates to a composition comprising the derivative and its use.