摘要:
For increasing gene entrapping efficiency, it is preferable that liposome membrane to be formed is positively charged. For this purpose, a lipid with quaternary amine has been employed as one of constitutional lipids, but the such lipid may show toxicity to cells to be transformed with the gene for expression. The invention selects, as constitutional lipids for liposomes, N-(.alpha.-trimethylammonioacetyl)-didodecyl-D-glutamate chloride (TMAG), dilauroylphosphatidylcholine (DLPC), and dioleoylphosphatidylethanolamine (DOPE) with molar ratio of 1:2:2, and vortex treatment for preparing the liposomes with multi-layers to entrap the gene therein.
摘要:
Some of antineoplastic agents, for instance, adriamycin and daunorubicin, have a positive charge at physiological pH. Such drugs possess high affinity for binding to steroidal sulfate by means of electrostatic force. The invention utilizes this property to prepare steroidal sulfate liposomes having a net negative charge and encapsulating the antineoplastic agent.
摘要:
An addition type polyimide resin raw material composition having high heat resistance and high corrosion resistance comprising a tetracarboxylic anhydride and/or tetracarboxylic diester compound, diamine compound and exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride and/or exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic monoester compound; a composition containing a prepreg; a fiber-reinforced polyimide composite prepreg, coating material and paint using them; and a curing method thereof.
摘要:
An image display apparatus is provided for enlarging and projecting a light emitted from a plurality of self-emitting elements on a screen by beam scanning means, which is an image display apparatus having little or no luminance unevenness by solving the conventional problem of causing luminance unevenness in images projected on the screen due to a variance in luminance characteristics of each self-emitting element. It is configured such that a part of the light scanned on the screen from the beam scanning means is provided to a photodetector element that converts the intensity of the light into an electric signal so as to correct a driving signal to be supplied to the self-emitting element by the intensity of the light detected by this photodetector element.
摘要:
Three colors of light beams from a light source travel via a first optical system to strike a reflecting surface of a rotating polygon mirror, or mirrors, at different angles without overlapping. The rotating polygon mirror or mirrors reflect the light beams for scanning. The reflected light beams enter a second optical system at different angles to illuminate an image display panel at different portions. On the image display panel, belt-like regions illuminated by the light beams of individual colors are formed in parallel with each other, and these illuminated regions are moved continuously by scanning. A formed color image is magnified and projected by a projection optical system. With such a projection type image display apparatus, a display having high resolution and light efficiency that is also small, thin and inexpensive is achieved.
摘要:
The invention relates to a liquid crystal display device and a projection TV using same. The liquid crystal display device has microfine conductive bumps formed on terminals of a liquid crystal display panel, and a conductive joint layer formed on each conductive bump. The display panel is connected to wiring leads formed on a substrate provided thereon an IC drive circuit. The projection TV employs a liquid crystal display device in which three liquid crystal display panels corresponding to three colors, red, green, and blue, are mounted on a single substrate. Light beams are made incident on the respective panels, and light beams transmitted through or reflected from specified pixels are projected on a screen to form an image.
摘要:
Belt-like regions illuminated by red, green and blue light beams are formed on an image display panel, and the illuminated regions are moved continuously. Each pixel of the image display panel is driven by a signal corresponding to the color of light entering the pixel. This makes it possible to display a color image with only one image display panel having neither a color filter nor a pixel exclusively for the respective light beams. The adjacent regions illuminated by two colors of light are overlapped partially, and the pixels in the overlapping portions are driven by a brightness signal component. By overlapping the adjacent illuminated regions, a focused area of the light beams can be enlarged, achieving a smaller focusing optical system, making it possible to reduce the size of the entire device.
摘要:
The invention provides a polypeptide of calcitonin analogue and use thereof. The polypeptide has such an amino acid sequence that proline-amide residue (Pro-NH.sub.2) at C-terminal of native eel calcitonin is substituted to a homoserine amide residue (Hse.multidot.NH.sub.2).
摘要:
The modified polypeptide compound of the present invention is represented by the following general formula ((SEQ ID NO: 2)-X):His-Ser-Asp-Ala-Val-Phe-Thr-Gly-Asn-Tyr-Thr-Lys-Leu-Arg-Lys-Gln-Leu-Ala-Ala-Lys-Lys-Tyr-Leu-R.sup.1 -Lys-Ala-Leu-R.sup.2 -Hse-Xwherein R.sup.1 represents an Asn, Lys or Gln residue, R.sup.2 represents a Lys or Arg residue, Hse represents a homoserine residue, and X represents NHR.sup.3 or NR.sup.4 R.sup.5, wherein R.sup.3 represents a hydrocarbon residue having 18 or less carbon atoms or a polyalkylamine having 2 or more amino groups in its molecule, or R.sup.4 and R.sup.5 represent hydrocarbon residues, provided that the total carbon number of R.sup.4 and R.sup.5 is 18 or less. This modified polypeptide compound has a strong activity as a smooth muscle relaxant, and has excellent stability and prolonged duration of action. These characteristics make it suitable as an active ingredient in a drug for preventing and treating bronchial asthma and impotence.
摘要翻译:本发明的修饰多肽化合物由以下通式((SEQ ID NO:2)-X)表示:His-Ser-Asp-Ala-Val-Phe-Thr-Gly-Asn-Tyr-Thr-Lys -Leu-Arg-Lys-Gln-Leu-Ala-Ala-Lys-Lys-Tyr-Leu-R1-Lys-Ala-Leu-R2-Hse-X其中R1表示Asn,Lys或Gln残基,R2表示 Lys或Arg残基,Hse表示高丝氨酸残基,X表示NHR3或NR4R5,其中R3表示碳原子数为18以下的烃残基或其分子中具有2个以上氨基的多烷基胺,或者R4和R5表示烃残基 条件是R4和R5的总碳数为18以下。 这种修饰的多肽化合物作为平滑肌松弛剂具有强烈的活性,并且具有优异的稳定性和延长的作用持续时间。 这些特征使其适合作为预防和治疗支气管哮喘和阳a药物的有效成分。
摘要:
An APL detection unit detects the APL for each unit field time period of an input video signal, and a light source control data production unit produces, depending on the results of the APL detection, a light source control signal at a minimum level which can stably drive a light source when the APL is 0% up to a predetermined value A1, a light source control signal at a maximum level which can stably drive the light source when the APL is a predetermined value A2 up to 100%, and a light source control signal which dynamically varies depending on the APL when the APL is between the predetermined value A1 and the predetermined value A2, to drive the light source on the basis of the light source control signal. As a result, it is possible to mitigate the lack of a contrast feeling and the occurrence of a floating blackness, as well as to improve the reliability of the light source.