Abstract: A method of using a catheter assembly for inserting in a fluid filled space in a body includes providing a main body having a first end portion and a second end portion. The first end portion is positioned within the fluid filled space. The second end portion is adjusted to extend outwardly from the fluid filled space when the first end portion is positioned within the fluid filled space. A catheter tip is connected to the second end portion of the main body. The catheter tip includes a housing having a cavity defined therein and a rotating element positioned within the fluid filled space. The rotating element is rotated within the cavity of the housing to impart movement of the first end portion of the main body within the fluid filled space.

Abstract: The invention relates to the stabilization of poly-ene macrolides and to a particular macrolide obtained in crystalline form.

Abstract: The invention relates to the stabilization of poly-ene macrolides and to a particular macrolide obtained in crystalline form.

Abstract: A mixture comprising a poly-ene macrolide and an antioxidant. Preferably, the poly-ene macrolide is rapamycin and the antioxidant is 2,6-di-tert.-butyl-4-methylphenol. The presence of the antioxidant improves the stability of the poly-ene macrolide to oxidation.

Abstract: A mixture comprising a poly-ene macrolide and an antioxidant. Preferably, the poly-ene macrolide is rapamycin and the antioxidant is 2,6-di-tert.-butyl-4-methylphenol. The presence of the antioxidant improves the stability of the poly-ene macrolide to oxidation.

Abstract: A mixture comprising a poly-ene macrolide and an antioxidant. Preferably, the poly-ene macrolide is rapamycin and the antioxidant is 2, 6-di-tert.-butyl-4-methylphenol. The presence of the antioxidant improves the stability of the poly-ene macrolide to oxidation.

Abstract: This invention allows users to chat online while displaying live webcam images of multiple selected users within an Internet chatroom environment. This technology is unique to the field because: 1) Java Programming Language is used, enabling the program to work across all platforms; 2) the number of users that are allowed to participate in the chatroom is not limited; 3) well-defined Internet standards are used to transfer and display files; 4) webcam images are automatically uniformly sized; 5) users can select the webcam images they want to view from a list of chatters. This invention also discloses a method of providing customer service and the corresponding system utilizing the above-mentioned technology, enabling a customer and representative to interact visually, orally, and/or textually via live webcam images, Voice over Internet Protocol, Instant Messaging System, and/or e-mail.

Abstract: A mixture comprising a poly-ene macrolide and an antioxidant. Preferably, the poly-ene macrolide is rapamycin and the antioxidant is 2, 6-di-tert.-butyl-4-methylphenol. The presence of the antioxidant improves the stability of the poly-ene macrolide to oxidation.

Abstract: A mixture comprising a poly-ene macrolide and an antioxidant. Preferably, the poly-ene macrolide is rapamycin and the antioxidant is 2, 6-di-tert.-butyl-4-methylphenol. The presence of the antioxidant improves the stability of the poly-ene macrolide to oxidation.

Abstract: A mixture comprising a poly-ene macrolide and an antioxidant. Preferably, the poly-ene macrolide is rapamycin and the antioxidant is 2, 6-di-tert.-butyl-4-methylphenol. The presence of the antioxidant improves the stability of the poly-ene macrolide to oxidation.

Abstract: A mixture comprising a poly-ene macrolide and an antioxidant. Preferably, the poly-ene macrolide is rapamycin and the antioxidant is 2,6-di-tert.-butyl-4-methylphenol. The presence of the antioxidant improves the stability of the poly-ene macrolide to oxidation.

Abstract: A mixture comprising a poly-ene macrolide and an antioxidant. Preferably, the poly-ene macrolide is rapamycin and the antioxidant is 2,6-di-tert.-butyl-4-methylphenol. The presence of the antioxidant improves the stability of the poly-ene macrolide to oxidation.

Abstract: Process for the stereospecific synthesis of leukotriene B.sub.4 (LTB.sub.4) of 6Z, 8E, 10E configuration of formula ##STR1## in which a dibenzoate triether is prepared which is subjected to a reductive elimination according to the diagram ##STR2## so as to obtain a triether which is converted in order to obtain the leukotriene B.sub.4.

Abstract: The invention relates to a process for the manufacture of 6-trans-leukotriene B.sub.4 (LTB.sub.4) of formula ##STR1## in which a butadienediol is prepared; the hydroxyl groups are esterified to produce a diester and this diester is subjected to a stereospecific reductive elimination using low valency titanium [Ti(0)] to produce a 6-trans triether of formula: ##STR2## the groups --OA in positions 5 and 12 of which are then converted to --OH groups and the group --CH.sub.2 OA in position of which is then converted to a --COOH group, to produce 6-trans-LTB.sub.4.The invention also relates to intermediates obtained in the said manufacturing process.