摘要:
A non-invasive tool for skin disease diagnosis would be a useful clinical adjunct. The purpose of this study was to determine whether visible/near-infrared spectroscopy can be used to non-invasively characterize skin diseases. In-vivo visible- and near-infrared spectra (400-2500 nm) of skin neoplasms (actinic keratoses, basal cell carcinomata, banal common acquired melanocytic nevi, dysplastic melanocytic nevi, actinic lentigines and seborrheic keratoses) were collected by placing a fiber optic probe on the skin. Paired t-tests, repeated measures analysis of variance and linear discriminant analysis were used to determine whether significant spectral differences existed and whether spectra could be classified according to lesion type. Paired t-tests showed significant differences (p
摘要:
The present invention provides a composition comprising one or more than one isotactic, modified polypropylene (MPP) or polypropylene-α-olefin copolymer (MPP copolymer) and one or more than one polymer or resin, wherein said MPP or MPP copolymer is modified with one or more than one carboxyl or anhydride, preferably maleic acid or anhydride, or with one or more than one epoxy or hydroxyl group. Alternatively, the present invention provides a composition comprising an adduct which is the reaction product of one or more than one isotactic, modified polypropylene (MPP) or isotactic, modified polypropylene-α-olefin copolymer (MPP copolymer) with one or more than one carboxyl, anhydride, epoxy or hydroxyl functional reactant, polymer or resin. The composition may be used to make aqueous or solvent borne compositions for making primers, coatings, powder coatings, films, laminates, moldings and shaped-articles having good adhesion to thermoplastic polyolefins (TPO) or polyolefin, while partly or wholly avoiding use of environmentally harmful chlorinated polyolefin (CPO) additives. The isotactic MPP or MPP copolymer preferably has one or two terminal carboxyl, anhydride, epoxy or hydroxyl group. More preferably, the isotactic MPP or MPP copolymer has a low molecular weight and a melting point of from 70 to 145° C., preferably 80 to 105° C. for MPP copolymer and preferably 105 to 120° C. for an MPP homopolymer, and provides excellent penetration into TPO or polyolefin substrates.
摘要:
An article comprising a frame having an outer periphery with a multilayered, substantially planar skin secured thereto that is exposed to various environmental conditions is disclosed. The skin comprises a first layer exposed to the environmental conditions and a second layer shielded from the environmental conditions by the first layer. The first layer is substantially free of organic and/or inorganic fillers and comprises a copolymer of at least one ethylenically unsaturated monomer, at least one aromatic vinyl compound, and at least one acrylic ester elastomer. The second layer comprises a terpolymer of at least one ethylenically unsaturated monomer, at least one butadiene, and at least one aromatic vinyl compound and has at least one filler is dispersed therein in an amount of from about 5 to about 35 percent based on a total weight of the second layer.
摘要:
A method for performing performance prediction with respect to a vertical flight plan. A system performs performance prediction with respect to a vertical flight plan of an aircraft that includes determining which vertical flight plan rules of a plurality of vertical flight rules that have been loaded in a predictions processor are active by monitoring for criteria that are used to initiate or terminate one or more of the vertical flight plan rules. Aircraft state is predicted at waypoints along a lateral flight path in view of active vertical flight plan rules, and the predicted aircraft state is updated within an integrated flight plan database that stores prediction performance data associated with the aircraft's flight.
摘要:
The present invention provides aqueous dispersion compositions comprising one or more than one of each of aqueous dispersions of water-dispersible polymers and aqueous nanocomposite dispersions of at least partially exfoliated layered silicates and water-insoluble polymers to enhance the thermal shock resistance of a waterborne coating, film, or article comprising the composition. Only 2 to 10 phr of the layered silicate, e.g. sodium montmorillonite surprisingly enhances thermal shock resistance. Optional fillers, such as nepheline syenite, may be added. Such compositions may be coated on automotive plastic, TPO or resinous substrates, and provide coatings having a 19 or greater thermal shock resistance according to Ford laboratory test method BI 107-05 when coated on TPO and baked for 15 minutes at from 74 to 90° C. Further, the present invention provides methods of making aqueous nanocomposite dispersions comprising mixing unmodified layered silicate and water insoluble neat resin in water to at least partially exfoliate the clay and subjecting the resulting mixture to high shear.
摘要:
The present invention relates to synthetic antigen-presenting matrices, their methods of making and their methods of use. One such matrix is cells that have been transfected to produce MHC antigen-presenting molecules with one or more accessory molecules. The matrices are used to activate naive CD4+ T cells as well as shift the ongoing activation state into a preferred differentiated population of either Th1 or Th2 cells.