Abstract: Lipid formulation particularly for preparing stable gas-filled microvesicles, comprising distearoyl-phosphatidylcholine (DSPC), dipalmitoylphosphatidylethanolamine-PEG5000 (DPPE-PEG5000) and palmitic acid in an advantageous relative molar ratio. The formulation is useful in particular for therapeutic application with ultrasounds.

Abstract: Lipid formulation particularly for preparing stable gas-filled microvesicles, comprising distearoyl-phosphatidylcholine (DSPC), dipalmitoylphosphatidylethanolamine-PEG5000 (DPPE-PEG5000) and palmitic acid in an advantageous relative molar ratio. The formulation is useful in particular for therapeutic application with ultrasounds.

Abstract: Formulations of gas-filled microvesicles comprising a ligand, which may advantageously be used in methods for separating cells or biological materials. The formulations comprise a phospholipid and a suitable mixture of a pegylated phospholipid and of a pegylated phospholipid comprising a ligand.

Abstract: In a method of communicating content over a wireless communication link between a base station set-top (BSS) and one or more hosts, where each of the one or more hosts have an interface protocol substantially complying with at least a subset of a copy protection standard, an encrypted signal is at least one of received and stored in the BSS, and the encrypted signal is turned into an encrypted data packet stream. The BSS wirelessly transmits the data packet stream to one or more wireless interface apparatuses (WIAs) which are interfaced with at least one host through the interface protocol. In addition, the WIA forwards the encrypted data packet stream to the one or more hosts through implementation of the interface protocol.

Abstract: The invention is directed to injectable suspensions of gas-filled microvesicles, as well as methods of preparing and using the same, especially as ultrasound contrast agents.

Abstract: The invention is directed to injectable suspensions of gas-filled microvesicles, as well as methods of preparing and using the same, especially as ultrasound contrast agents.

Abstract: In a method of communicating content over a wireless communication link between a base station set-top (BSS) and one or more hosts, where each of the one or more hosts have an interface protocol substantially complying with at least a subset of a copy protection standard, an encrypted signal is at least one of received and stored in the BSS, and the encrypted signal is turned into an encrypted data packet stream. The BSS wirelessly transmits the data packet stream to one or more wireless interface apparatuses (WIAs) which are interfaced with at least one host through the interface protocol. In addition, the WIA forwards the encrypted data packet stream to the one or more hosts through implementation of the interface protocol.

Abstract: The invention is directed to injectable suspensions of gas-filled microvesicles, as well as methods of preparing and using the same, especially as ultrasound contrast agents.

Abstract: A method (10, 20) and apparatus (30) enables a customer (47) to distinguish between a dead or broken Internet Protocol telephone line and an out-of-service Internet Protocol telephone line. The method detects (11) a hook status of a device (46) coupled to the IP network (33) during an out-of-service status of the line. Upon detection of a change in state from an on-hook state to an off-hook state, a message is sent (13) to the device (46) indicating that the IP telephone line is currently out-of-service and not dead or broken. This message can be a voice or text message. Moreover, the message can provide status information for all of the interfaces of the device coupled to the IP telephone line. In addition, the message can include information as to how to obtain service, such as a telephone number to call.

Abstract: Method and apparatus for adjusting payload header suppression (PHS) at the sender by the receiver based on the receiver's inspection of received packets. As the contents of the packets change, and payload header suppression becomes ineffective, the receiver detects this case and coordinates a switch to an effective payload header suppression rule.

Abstract: A core spray sparger assembly for supplying coolant to a nuclear reactor. The nuclear reactor includes fuel assemblies, a top guide, coolant supply pipes and a shroud head. The core spray sparger assembly includes at least one coolant manifold, at least one coolant coupling in fluid communication with the coolant manifold, and at least one mounting device configured to couple the coolant manifold to the nuclear reactor. The core spray sparger assembly further includes a plurality of fluid conductors in a parallel array positioned above the fuel assemblies, the fluid conductors in fluid communication with the coolant manifold, and a plurality of nozzles in fluid communication with the fluid conductors.

Abstract: A core spray sparger assembly for supplying coolant to a nuclear reactor. The nuclear reactor includes fuel assemblies, a top guide, coolant supply pipes and a shroud head. The core spray sparger assembly includes at least one coolant manifold, at least one coolant coupling in fluid communication with the coolant manifold, and at least one mounting device configured to couple the coolant manifold to the nuclear reactor. The core spray sparger assembly further includes a plurality of fluid conductors in a parallel array positioned above the fuel assemblies, the fluid conductors in fluid communication with the coolant manifold, and a plurality of nozzles in fluid communication with the fluid conductors.

Abstract: A Communication Gateway is capable of operating in broadband telephony networks having different Cable Modem Termination System and Call Agent implementations. The Communication Gateway has a set of parameters for use in defining the different implementations. Based on a selected implementation of the different implementations, values for parameters of the set are input into the Communication Gateway. The inputted values are stored. The Communication Gateway operates in the selected implementation using the stored values.

Abstract: High molecular weight linear condensation polyesters are stabilized against deterioration by heat by reacting the polyester in molten form with an epoxy compound having 5 to 25 carbon atoms in the molecule and selected from the group consisting of ##STR1## where R represents the radical remaining after removal of the carboxyl group from a monocarboxylic acid, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent hydrogen or hydrocarbon radicals, and n is an integer that can be 0 to 3.

Abstract: In a process for the preparation of high molecular weight linear polyesters of terephthalic acid which comprises partially esterifying terephthalic acid with an alkylene glycol under direct esterification conditions and then further esterifying and polycondensing the partially esterified product, the molecular weight distribution of the polyester is narrowed by correlating the carboxyl conversion with the reacted glycol to terephthalic acid mol ratio in various steps of a multistep process.

Abstract: The esterification of an aromatic dicarboxylic acid with an alkylene glycol containing 2 to 10 carbon atoms is described under conditions of direct esterification wherein the resultant polyester has low ether content. The dicarboxylic acid is esterified with the alkylene glycol in the presence of a compound of the formula ##STR1## wherein M is H, an alkali metal selected from the group consisting of lithium, sodium and potassium or an alkaline earth metal selected from the group calcium and magnesium.

Abstract: In a continuous process for production of polyester polymers, polymer additives are added to the process stream at a point where the polymer is molten by injecting a stable liquid dispersion formed from a liquid polyisobutene and the requisite polymer additives. The process is particularly useful in production of thermally stabilized polyesters wherein a stabilizing amount of a copper complex compound is incorporated therein.

Abstract: An improved polyamide characterized by resistance to thermal-oxidative degradation consisting essentially of a polyamide having a stabilizing amount of copper II dichloro bis (pyridine) or copper II dichloro bis (quinoline) incorporated therein. In a continuous process, the stabilizing compound is preferably added as a dispersion in an inert carrier liquid.CROSS-REFERENCE TO RELATED APPLICATIONSThis application is related to U.S. application Ser. No. 752,483 filed Dec. 20, 1976.BACKGROUND OF THE INVENTIONThis invention relates to improved polyamides and to methods for their preparation. More particularly, the invention relates to improvement in the preparation of fibers, filaments and yarns from polyamides modified for enhanced resistance to thermal-oxidative degradation.The polyamide synthetic resins have many valuable properties that have resulted in their well known wide-spread use in industry and in the arts.