Abstract: A process is provided for inverting a hydroxy function of a L-trans-hydroxy proline derivative to the corresponding L-cis-hydroxy proline sulfonate by a Modified Mitsunobu reaction process.

Abstract: A method for distinguishing between carcinomatous and/or precarcinomatous colo-rectal disease and histologically similar conditions due to diseases that are not carcinomatous or precarcinomatous comprising contacting colo-rectal tissue with an antibody that binds to blood group substance H and determining the presence of carcinomatous or precarcinomatous disease upon a finding of bound antibody, or the absence of such disease upon the finding of no bound antibody.

Abstract: A fiber optic switch has a fixed member and a movable member mounted for cantilevered movement with respect thereto. Both of the members are fabricated from borosilicate glass.

Abstract: Monoclonal antibodies to angiotensin II and the continuous hybrid monoclonal cell lines for their production are provided. These antibodies are useful in the diagnosis and treatment of angiotensin II-induced hypertension.

Abstract: A photosensitive ceramic coating composition which is fireable in a substantially nonoxidizing atmosphere comprising an admixture of:(a) finely divided particles of ceramic solids having a surface area-to-weight ration of no more than 10 m.sup.2 /g and at least 80 wt. % of the particles having a size of 1-10 .mu.m, and(b) finely divided particles of an inorganic biner having a glass transition temperature in the range from of 550.degree. to 825.degree. C., a surface area-to-weight ration of no more than 10 m.sup.2 /g and at least 90 wt. % of the particles having a size of 1-10 .mu.m, the weight ratio of (b) to (a) being in a range from 0.6 to 2, dispersed in an organic medium comprising(c) an organic polymeric binder, and(d) a photoinitiation system, dissolved in(e) photohardenable monomer, and(f) an organic mediumwherein the improvement comprises an organic polymeric binder containing a copolymer or interpolymer of a C.sub.1 -C.sub.10 alkyl acrylate, C.sub.1 -C.sub.

Abstract: A process is provided for preparing (trans)-4-phenyl-L-proline derivatives with excellent stereospecificity, which are useful in preparing certain ACE inhibitors, which process involves reacting a proline derivative of the structure ##STR1## whereing R is a nitrogen protecting group, R.sub.1 is H, aryl, arylalkyl or lower alkyl, and X is a leaving group such as fluorine, an alkyl sulfonate, arylsulfonate or cycloalkyl sulfonate is reacted with an aromatic nucleophile, such as benzene, in the presence of a Lewis acid such as AlCl.sub.

Abstract: A fixture for measuring the static characteristics of microwave active components has mechanical devices for supporting two dielectric substrates. Two terminals of the components under test are separately connected to electrical circuits constructed on said dielectric substrates. This fixture can be adapted to geometric sizes of component case and allows it to be submitted to thermal tests, without mechanical stresses due to expansion. The electrical circuits constructed on the dielectric substrates ensure circuit stability avoiding spurious oscillations during static characteristic measurement.

Abstract: In a process for increasing the molecular weight of a polyamide, e.g., nylon-6,6, comprising heating the polyamide in the presence of a catalyst to effect a desired molecular weight change, the improvement which comprises employing, as the catalyst,(A) R.sup.1 (CH.sub.2).sub.n PO.sub.3 R.sub.2.sup.2 and R.sup.1 (CH.sub.2).sub.n PO.sub.2 HR.sup.2 where R.sup.1 is 2-pyridyl, NHR.sup.4 or NR.sub.2.sup.4 or NH.sub.2, n is an integer of from 2 to 5 inclusive, R.sup.2, being the same or different, is H or C.sub.x H.sub.2x+1, R.sup.4, being the same or different, is C.sub.x H.sub.2x+1, and x is an interger of from 1 to 10 inclusive; and(B) R.sup.3 X(CH.sub.2).sub.n' PO.sub.3 R.sub.2.sup.2 and R.sup.3 X(CH.sub.2).sub.n' PO.sub.2 HR.sup.2 where X is S or O, n' is an integer of from 2 to 5 inclusive, R.sup.3 is H or C.sub.x H.sub.2x+1, x is an integer of from 0 to 10 inclusive and R.sup.2 is defined as in formula (A).

Abstract: An improved knee prosthesis of the four bar kind employing modified geometry of its links permitting the available degree of flexion to be increased to 143.degree.. A resilient leaf spring provides for extension bias at low angles of flexion, and biases the joint towards its fully flexed position at high angles of flexion. An improved lock for the joint is also provided.

Abstract: Process which comprises feeding an aromatic amine in the presence of HF to a reaction zone simultaneously with a diazotizing agent so as to effect diazotization of the aromatic amine, thermally decomposing the resulting diazonium salt substantially as it is formed, and removing the resulting fluoroaromatic compound from the reaction zone substantially as it is formed. The amine and the diazotizing agent are fed to the reaction zone in such quantities and proportions that they are consumed substantially as fed so that no substantial concentration of either builds up in the reaction zone.

Abstract: An improved electrostatic master is disclosed that contains a thiourea or thioamide electrostatic decay additive in a photopolymerizable composition of an ethylenically unsaturated monomer, an organic polymeric binder, and a photoinitiator system.

Abstract: A blend of tetrafluoroethylene and a poly(oxy-p-phenyleneisophthaloyl-phenylene/oxy-p-phenyleneterephthaloyl- p-phenylene) (PEKK) results in improved processing of the fluoroelastomer at temperatures below the melting temperature of the PEKK and improves physical properties of cured fluoroelastomer.

Abstract: Nitroaryl carbonyl Formula (IIA) compounds, their nitrodihydroaryl carbonyl Formula (I) intermediates, processes for preparing Formula (II) compounds, and a process for preparing Formula (I) compounds, wherein each process comprises the reaction of a nitroaryl compound with a silane.

Abstract: Highly soluble, optically transparent to clear aromatic polyimides in the visible range are disclosed. The dianhydrides from which the polyimides are prepared are 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl) ethylidene] bis(1,2-benzenedicarboxylic anhydride) which can be partially replaced with either pyromellitic dianhydride or 3,3',4,4'-benzophenone tetracarboxylic dianhydride. The diamines from which the polyimides are prepared are m- or p- phenylene diamines which are substituted ortho to the amino groups with primary or secondary alkyl groups having 1 to 6 carbon atoms preferably methyl or ethyl.

Abstract: Process for the separation of HF, 2,2-dichloro-1,1,1-trifluoroethane (FC-123) and/or 2-chloro-1,1,1,2-tetrafluoroethane (FC-124) mixture by subjecting the mixture to a temperature from about -80.degree. C. to about 40.degree. C. and a pressure from about 0.10 MPa to about 3.55 MPa in a separation zone, whereby an organic phase having less than 15 mole percent of HF is formed as the bottom layer in the separation zone and an acid phase having at least 93 mole percent of HF is formed at the top in the separation zone.

Abstract: An optical fiber material comprising at least one optical fiber and a wrapping material wrapping at least a part of the peripheral surface of the optical fiber in the axial direction of the optical fiber, wherein in its section taken at right angles to the axis of the optical fiber, the wrapping material holds the optical fiber tightly at its inside surface which face the optical fiber in the meridian direction of the optical fiber, or hold it tightly in at least three sites of its inner circumferential surface facing the optical fiber.The present invention provide also processes and devices for preparation thereof.

Abstract: A spray gun including a turbine mechanism for reducing the turbulence of fanning air to more effectively control the shaping of a conical spray pattern. A spiral flow of fanning air is created by the turbine mechanism. The amount of pressurized air flowing through the turbine mechanism is controlled by a valve mechanism to provide a greater or lesser amount of fanning air. The improved spray gun is particularly useful in paint spray systems wherein air having a flow rate in excess of 5 CFM and a delivery pressure of less than 15 psi over atmospheric is communicated to the spray head of the spray gun. In one embodiment, the turbine and valve mechanisms include first and second sets of circumferentially-spaced inclined vanes, respectively, which cooperate to create the spiral flow of air. The valve mechanism includes an annular valve member which supports the second set of vanes. The turbine mechanism includes a turbine member which supports the first set of vanes.

Abstract: A method is provided for inhibiting onset of or treating depression by administering an ACE inhibitor, which is (S)-1-[6-amino-2-[[hydroxy-(4-phenylbutyl)phosphenyl]oxy]-1-oxohexyl]-L-pr oline, fosinopril or zofenopril, alone or in combination with an antidepressant drug such as lithium, over a prolonged period of treatment.

Abstract: A padlock-type security seal including a U-shaped shackle having a pair of reversely bend end portions. A body portion and a brightly colored insert are assembled to form a pair of chambers for receiving and locking the bent end portions. Movable tangs and matching cavities are formed as an integral part of the insert adjacent the chambers. The body portion has a plurality of transparent windows adjacent the cavities. Attempts to open the seal by deforming the shackle to remove the bent end portions from the chambers will result in moving the tangs into locking containment with the cavities thereby visually indicating tampering via the transparent windows.