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.