Abstract: An electronic catalog system includes automated processes for detecting and handling specific types of browsing events, such as non-conversion events in which users browse but fail to purchase specific items. In one embodiment, when a user engages in a threshold level of browsing activity with respect to an item without making a purchase of that item or a substitute item, and a favorable change in the item's state thereafter occurs (e.g., the price is reduced or the item becomes available), the user is automatically notified of the state change. In another embodiment, when a user transitions away from an item or item category after engaging in a threshold level of browsing activity, a determination is made whether to present to the user a time-limited purchase incentive that is tied to that item or item category.

Abstract: A method and system facilitates the exchange of goods and services at a local level. For each party, information is received including an indication of one or more items desired to be exchanged and an indication of one or more exchange locations acceptable to the party. Potential matches are identified by identifying exchange locations that are mutually agreeable to respective ones of the parties involved in a given exchange.

Abstract: An electronic catalog system includes automated processes for detecting and handling specific types of browsing events, such as non-conversion events in which users browse but fail to purchase specific items. In one embodiment, when a user engages in a threshold level of browsing activity with respect to an item without making a purchase of that item or a substitute item, and a favorable change in the item's state thereafter occurs (e.g., the price is reduced or the item becomes available), the user is automatically notified of the state change. In another embodiment, when a user transitions away from an item or item category after engaging in a threshold level of browsing activity, a determination is made whether to present to the user a time-limited purchase incentive that is tied to that item or item category.

Abstract: The invention provides methods, compositions, apparatus, and a computer data retrieval system for conducting proteomics.

Abstract: The present invention provides a method for protein sequencing using mass spectrometry. Also provided are protein labeling agents and labeled proteins for use in conjunction with the present method.

Abstract: The present invention provides a method for protein sequencing using mass spectrometry. Also provided are protein labeling agents and labeled proteins for use in conjunction with the present method.

Abstract: The invention provides methods, compositions, apparatus, and a computer data retrieval system for conducting proteomics.

Abstract: Provided are methods of labeling multiple proteins in protein mixtures to prepare the samples for identification and analysis, and useful in developing a proteomics database.

Abstract: The present invention provides a method for protein sequencing using mass spectrometry. Also provided are protein labeling agents and labeled proteins for use in conjunction with the present method.

Abstract: The present invention provides a method for protein sequencing using mass spectrometry. Also provided are protein labeling agents and labeled proteins for use in conjunction with the present method.

Abstract: Dense, homogeneous tubular metal products such as pipe is cast in long lengths continuously by introducing liquid metal into the lower portion of an annular-shaped casting vessel. The liquid metal is withdrawn in the presence of an outer elongated upwardly travelling alternating electromagnetic levitation field and a second inner electromagnetic levitation field for maintaining the tubular liquid metal column in a substantially weightless and pressureless contact condition while solidifying. The resulting solidified tubular metal product is withdrawn from the upper portion of the field, cooled and further processed to result in a desired and product/and has a homogeneous, fully dense, fine grain structure due to continuous eddy current stirring by the levitating electromagnetic fields and a ripply, shiny exterior surface.