摘要:
Recombinant papilloma virus-like particles result from the expression of viral structural protein L1 and/or L2 in which one or several sections of the L1 and/or L2 protein are deleted. The ability to form virus-like particles is at least the same as, preferably higher than, that of native reproduction and/or in vitro production processes.
摘要:
A computer system for protecting memory comprising a processor having address outputs and executing a stored program, a memory having a control input, an address-decoder for providing a control signal to the control input of the memory in response to associated address outputs from the processor, and a window circuit. The window circuit comprises a range detector responsive to the address outputs for generating a range-detection signal indicative of an address from the processor being within a protected range, the protected range non-identical to the entirety of the space of addresses within the memory. Access to memory locations within the protected range is permitted only if a request signal is received from the processor. If the request signal is asserted for an unexpectedly long time an error condition is annunciated, for example the processor is reset.
摘要:
The invention describes two immunogenic regions of the E7 protein of human papillomavirus type 16 (HPV 16), one immunoreactive region being located downstream from nucleotide 595 and the other being located downstream from nucleotide 667 of the HPV 16 genome.
摘要:
The hydraulic setting device (10) has a differential cylinder (11) whose pressure spaces (14, 18) can each be acted upon by a pump (17). The pressure conduits (15) and (19) between the pump and the two pressure spaces (14) and (18) are connected to a control valve (31) by means of control conduits (29) and (33). A part pressure can be set in the pressure spaces (14) and (18) by spilling pressure medium by corresponding activation of the control valve.
摘要:
The hydraulic control device for rotating the camshaft of an internal combustion engine has a couple member constructed as a piston (25) connected with the sprocket wheel of the camshaft via a spiral toothing and with the camshaft via a straight toothing. A hydraulic body is mounted on at the camshaft and receives a radial piston pump which delivers the pressure medium required for the displacement of the piston. The pressure space is closed by a controllable pressure limiting valve. An electromagnetic valve controls a pressure medium flow to the piston bores of the radial piston pump and the pressure medium is delivered by an external pump. The sprocket wheel and camshaft are rotated relative to one another by the displacement of the piston.
摘要:
A porphycene having the structure ##STR1## wherein each R.sup.1 is, independently, (a) --(CH.sub.2).sub.n --X, where n=1-4, X is OR.sup.2 and R.sup.2 is C.sub.1-6 alkyl, aralkyl or aryl; CN; OH; OSO.sub.2 R.sup.2 ; NH.sub.2 ; NHR.sup.2 ; NR.sub.2.sup.2 ; SH; SR.sup.2 ; S(O).sub.1-2 R.sup.2 ; COOH; CO.sub.2 R.sup.2 ; C(O)NH.sub.2 ; C(O)NHR.sup.2 ; C(O)NR.sub.2.sup.2 ; halogen; or CHO;(b) --(CH.sub.2).sub.m CH.dbd.CH.sub.2 where m is 0-2; or(c) --(CH.sub.2).sub.n --O--G where G is a mono- or oligosaccharide;(d) --(CH.sub.2).sub.2n --X, where X is an amino acid, oligopeptide covalently bonded by an ether-, ester- or amine-bond or --Y--(CH.sub.2).sub.n -porphycene.sup.2 (porphycene.sup.2 being a compound of the same structure and Y is a direct bond; --O--; or --CH.dbd.CH.sub.2); or(e) where one, two or three of the substituents R.sup.1 are C.sub.1-6 alkyl or aryl and the remaining substituents are as above under (a)-(d), and salts and metal complexes thereof. The porphycene compounds and pharmaceutical compositions containing the compounds are useful in photodynamic therapy treatment of tumors and psoriasis.
摘要:
An electrical machine, particularly a rotary current generator, has a stator, a claw pole rotor, a stator winding having winding heads extending outwardly beyond ends of the surface-cooled stator, a metal housing surrounding the stator and serving for withdrawal of heat from an interior to an exterior of the housing, a zinc die cast alloy in which the winding heads are electrically insulatingly embedded and which conduct heat to the metal housing, and an electrically insulating layer completely coating each of the winding heads and located between each of the winding heads and the zinc die cast alloy.
摘要:
A gas spring must be filled with pressurized gas through an opening. This opening must be closed after the filling operation while maintaining the gas pressure within the gas spring. According to an illustrative example of the invention, the filling opening is bored by a laser beam, while the location of the opening to be bored is confined within a filling chamber. After such laser boring of the opening, pressurized gas is admitted to the filling chamber and flows from the filling chamber into the gas spring. Hereinafter, the opening is closed again by directing the laser beam against an annular zone surrounding the opening.
摘要:
The invention relates to the continuous production of epoxide resins of low, medium and high molecular weight, and also to their purification and to that of the waste water. No raw materials are required in addition to epichlorohydrin, 2,2-bis-(4-hydroxyphenyl)-propane, alkali hydroxide and water. The raw materials are fed at a shear rate of 7.5-50.times.10.sup.4 sec.sup.-1 (at a peripheral speed of the rotor of 15 to 50 m/sec and a distance of the rotor elements from the stator elements of 0.01 to 0.02 cm) continuously into a reactor and mixed in such a way that by the concentration of high kinetic energy in a very limited space the interfaces of the phases of the heterogeneous reaction mixture are increased to an extreme extent and the reagents are caused to react with one another within 5 sec. at the latest.The reaction proceeds very evenly in the reactor. By conversion of the kinetic energy and reaction heat of the chemical reaction the necessary reaction temperature is maintained for the reaction system within the reactor. The resins obtained and also their waste water are extracted in a pulsation unit in a counterflow, by means of water or organic solvents. This process enables epoxide resins of superior quality to be economically produced. The contamination of the waste water can be thus reduced to a minimum.
摘要:
The present invention is concerned with the provision of a method for manufacturing papillomavirus like particles (PV-VLP), comprising the steps of a) culturing a host cell lacking protease activity and comprising an expression vector, wherein said expression vector comprises at least one polynucleotide encoding a PV L1 polypeptide, and b) obtaining VLPs from the host cell. Also proposed is a host cell lacking protease activity and comprising an expression vector, wherein said expression vector comprises a polynucleotide encoding at least one PV L1 polypeptide. Furthermore, a method for the manufacture of a pharmaceutical composition for the treatment or prevention of PV-related disease comprising the steps of manufacturing PV-VLPs and the further step of formulating the VLPs as a pharmaceutical composition is proposed as well as an expression vector comprising at least one polynucleotide encoding a PV L1 polypeptide but lacking a functional gene for a v-cath protease.