Abstract: Disclosed is a method and system (102) for establishing communication between users. The method comprises receiving, from a first user operating on a social networking platform, a unique identifier associated with a second user to whom the first user wishes to send an anonymous notification, for communicating over a social networking platform. A tag is stored over a server for establishing communication between the first user and the second user, on said social networking platform. The tag expires after a predefined time period. The anonymous notification is delivered to the second user, indicating a known person's interest to communicate with the second user. Communication is established between the first user and the second user, over said social networking platform, after the second user correctly predicts the first user to be the sender associated with the anonymous notification, before expiry of the predefined time period associated with the tag.

Abstract: Disclosed is a method and system (102) for establishing communication between users. The method comprises receiving, from a first user operating on a social networking platform, a unique identifier associated with a second user to whom the first user wishes to send an anonymous notification, for communicating over a social networking platform. A tag is stored over a server for establishing communication between the first user and the second user, on said social networking platform. The tag expires after a predefined time period. The anonymous notification is delivered to the second user, indicating a known person's interest to communicate with the second user. Communication is established between the first user and the second user, over said social networking platform, after the second user correctly predicts the first user to be the sender associated with the anonymous notification, before expiry of the predefined time period associated with the tag.

Abstract: The present invention relates to vaccine conjugates composed of a hapten linked to a carrier compound, which are used for active or passive immunization in order to elicit antibodies against the hapten. The carrier compound used in the present invention is composed of a multitude of typically dozens of similar elements. Assuming each species of elements has at least one binding site for the hapten, this allows a) to maximize the degree of substitution of hapten molecules per carrier compound which may enhance the yield and avidity of elicited antibodies b) to use carrier compounds which are particularly easy to produce such as a polypeptide carrier leading to the manufacturing of cheap vaccines c) the production of particularly well defined conjugates, suited for rapid regulatory approval and well standardized immune responses.