Abstract: A human T cell line, designated AG-F, the cells of which: a) are capable of adherent growth as well as growth in suspension; b) have a short doubling time of approximately eight to nine hours; c) are near tetraploid, containing eighty-five to eighty-seven chromosomes instead of the usual forty-six; d) exhibit properties similar to those exhibited by T cells in very early stages of development; e) secrete a great variety of interleukins; and f) exhibit high CD4 antigen production, and the utilization of the AG-F cell line in hybridoma technology, including but not limited to lymphokine secretion studies, T cell lymphotropic virus studies, augmentation of antibody secretion in hybridomas and augmentation of cell growth and mitotic index by AG-F conditioned medium studies.

Abstract: An apparatus for treating cellulosic fiber containing fabrics to improve durable press and shrinkage resistance includes using steam as a vehicle to supply vaporized liquid cellulosic cross-linking agent and vaporized liquid catalyst to a reaction chamber in which the fabric articles are treated by cross-linking the cellulose. Normally liquid cross-linking agent and liquid catalysts are directly injected into a stream of treating steam to cause vaporization of the cross-linking agent and catalyst. Alternatively, a steam driven ejector type pump is utilized to entrain and vaporize liquid cross-linking agent and liquid catalyst in a flowing stream of steam supplied to the reaction chamber. Gaseous ammonia may also be supplied to the reaction chamber to condition the cellulosic material containing fabric before cross-linking.

Abstract: The present invention is concerned with antiretroviral (e.g. anti HIV-1) compounds having the formula ##STR1## Pharmaceutical compositions containing said compounds of formula (I-a) or (I-b), and processes of preparing said compounds and compositions.

Abstract: A stamper for use in producing high-density recording disks of the type in which an information signal pattern is formed as successive minute pits in a recording surface, is formed of glass and is manufactured by an image reversal photolithography process in which a film of a positive type of photoresist is scanned by a modulated light beam, baking is then executed to produce cross-linking of molecular chains within the portions of the photoresist which have been exposed to the scanning beam, and the photoresist is then subjected to overall flood exposure to light, whereby the photoresist portions which were not exposed to the scanning light beam can be removed by applying an alkaline solution. A photoresist pattern is thereby formed, to be used as an etching mask which can be patterned to a higher degree of resolution than has been possible hitherto, whereby a glass stamper for producing very high-capacity recording disks can be manufactured.

Abstract: The biaxially stretch-oriented multi-layer tubular packaging casing for packaging pasty products, in particular the artificial sausage casing, includes a barrier layer having a reduced permeability to oxygen, an outer layer and an inner layer. The barrier layer comprises a partially aromatic polyamide and/or copolyamide, the outer and inner layers an aliphatic polyamide or copolyamide or a polymer mixture of at least one of the two compounds.

Abstract: The invention is a take-off apparatus for removing sheets of stock from the bed of a screen printing press where the apparatus accommodates variations in the shape, position and size of the stock and includes a carriage member slidably mounted to a take-off frame which travels from a pick-up point through a drop-off point, and adjustable gripper bars mounted to the carriage member for gripping the stock at the pick-up point and for releasing the stock at the drop-off point. To accommodate variable arrangements of the forward edge, each gripper bar of the invention is adjustable on the carriage member laterally for selective positioning of the gripper bars along and longitudinally for selective positioning of the gripper bars at a forward edge of the stock.

Abstract: A process for synthesizing amorphous silica microspheres having fluorescence behavior includes the steps of placing into a container an organosilicon precursorand with a highly acidic solution and rinsing with a solvate to remove excess of the organosilicon precursor from the amorphous silica microspheres. The organosilicon precursor and the highly acidic solution are immiscible. The process for synthesizing amorphous silica microspheres also includes the steps adding a dopant from a group consisting of rhodamine-6G, rhodamine-B, europium 3.sup.+, fluorescein, coumarin-120, coumarin-314T, thionine, uranium and uranium-sensitized europium, stirring the organosilicon precursor and the highly acidic solution to form droplets of the organosilicon precursor in the highly acidic solution whereby water in the highly acidic solution hydrolizes the droplets of the organosilicon precursor to form amorphous silica microspheres and rinsing with a solvant to remove excess of the organosilicon precursor therefrom.

Abstract: A curable composition which comprises:(a) an anhydride-functional polymer obtained by polymerizing under free radical addition polymerization conditions, a monomer mixture comprising:(i) 20 to 75 weight percent of an alkenyl succinic anhydride having the structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen or alkyl or substituted alkyl of 1 to about 30 carbons; and(ii) 25 to 80 weight percent of at least one (meth)acrylic monomer copolymerizable with the alkenyl succinic anhydride; and, optionally,(iii) 0 to 75 weight percent of at least one unsaturated monomer, other than a (meth)acrylic-monomer, which is copolymerizable with the anhydride and the (meth)acrylic monomer; and(b) a compound having an average of at least two functional groups per molecule which are reactive with anhydride groups.

Abstract: A messaging arrangement (10) allows an originator of a message to cancel a sent message that has not been retrieved by the recipient, if permission for such cancellation has been given by the recipient. The message originator tags (258, 378) the message with a code (51 ) when he or she creates the message. Subsequently, the originator may access (301) the message recipient's mailbox (23) and cancel (330) the message by giving the message's tag code.

Abstract: An image reading device has a photoelectric transducer for scanning an image to read it line by line and converting the resulting optical data to an electric signal. A driver drives the photoelectric transducer in response to a synchronizing signal. An internal period signal generating circuit generates an internal period signal having a predetermined period. A period setting circuit sets the predetermined period of the internal period signal. A synchronization switching circuit selects and outputs either of the internal period signal or an external period signal sent from the outside of the image reading device as the synchronizing signal. Even when an external period signal from an image recorder including a polygon motor or similar external apparatus is not available or when the external apparatus is not operated, the device can surely read a document.

Abstract: Disclosed herein is an aluminum pigment comprising aluminum flakes, each of the aluminum flake being coated with molybdic acid in an amount of 0.1 to 10% by weight in terms of Mo based on Al. If desired, at least one selected from water-insoluble metal salts of molybdic acid and vanadium pentoxide in an amount of 0.1 to 10% by weight in terms of metal based on Al may be attached on the coatings of molybdic acid.The aluminum pigment of the present invention has good color tone and good water resistance.

Abstract: An open dishrack for a dishwasher has opposite sides formed of spaced apart elongated coated wires. A vertically adjustable shelf extends between the opposite sides. A pair of support plates include snap fittings which engage the wires to mount the plates on the sides in a facing relationship. Each plate includes an upper and a lower hub aligned with the corresponding hub of the other plate. The shelf includes projecting fingers which are received in a selected pair of hubs to rotatably mount the shelf in either an upper or a lower position. Each plate also includes a rib associated with each of its hubs to support the shelf in a generally horizontal orientation when the shelf is mounted in that hub. Each plate also includes a rib positioned to support the shelf in a generally vertical position when the shelf is mounted in the lower hubs.

Abstract: A release mechanism for permitting the operation of a pneumatic valve includes a ring (A) extending about a cylindrical hand held housing for manual manipulation to move a blocking member (B) from beneath a depressible valve operator (D) and is provided with resilient means (C) normally biasing the blocking member (B) towards a blocking position beneath the handle (D) but which may be moved by manual manipulation of the ring against the force of resilient means (C) which automatically returns the blocking member to blocking position after the handle is moved for actuating the pneumatic valve and the like for operating the hand held mechanism.

Abstract: The present invention relates to methods for producing self-supporting ceramic and ceramic composite bodies having a protective surface region on at least a portion of the surface of the formed bodies, and bodies produced thereby. The protective surface region is formed upon reaction of at least two components of the ceramic or ceramic composite body.

Abstract: A diffraction element includes a diffraction grating for dividing a light beam, emitted from a light source along a predetermined path, into a principal light beam and at least two auxiliary light beams, and a hologram for separating the beam, which has been reflected from an optical information recording medium, from the predetermined path. The diffraction grating and the hologram are integrated together by being formed in alignment with each other in opposite portions of a block of glass or plastics. A slide is provided at at least a portion of the diffraction element and includes a peripheral wall in sliding engagement with a cylindrical surface coaxial with an optical axis of the diffraction element to permit the diffraction element to be rotatable about the optical axis.

Abstract: Purified, soluble recombinant bacterial long chain and short chain PHA synthases are described, with methods and materials for overexpression and purification.

Abstract: A utility cart (10) includes a base support member (11) which is supported on wheels (17). Side walls (12, 13) are removably positioned on the base support member (11) by inserting downwardly extending projections (25) into slots (24) formed in the base support member (11). Front and rear end walls (14, 15) have slots (28) therein to engage flanges (30) formed on the side walls (12, 13) to interlock the end walls (14, 15) to the side walls (12, 13). The bottoms of the end walls (14, 15) are also provided with downwardly extending projections (25) which are received in additional slots (24) formed in the base support member (11).

Abstract: The present invention provides 7-deaza-2'-deoxy-guanosine nucleotides of the general formula: ##STR1## wherein R is a --PO.sub.3 H.sub.2, --P.sub.2 O.sub.6 H.sub.3 or --P.sub.3 O.sub.9 H.sub.4 residue or an alkali metal, alkaline earth metal or ammonium salt of the phosphate groups.The present invention also provides processes for the preparation of these nucleotides and is also concerned with the use thereof in the sequencing of DNA.

Abstract: Improved cytology centrifuge apparatus includes single or multiple well cell concentrators for being rotated by a centrifugal spinner. A rotor is removably supported by the spinner for rotation and is adapted to receive two or four cell concentrators. The rotor supports the cell concentrators in an unrestrained manner, thereby enhancing the ease of use and flexibility of the apparatus. Each cell concentrator includes a chamber having a top surface in which at least one fluid receiving aperture is disposed and a front surface in which at least one fluid expulsion aperture is disposed. A backing plate is provided with protruding top and bottom edges to vertically align a microscope slide with the chamber so that the fluid expulsion aperture is adjacent to a central portion of the slide. Retention clips secure the chamber to the backing plate with the slide sandwiched therebetween in horizontal alignment.