54results about How to "Reduce virus" patented technology

A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.

The invention relates to a process blacklist and whitelist control method based on a Windows system. A PsSetCreateProcessNotifyRoutine registered process notification callback function is used and NtCreateSection, NtClose, NtCreateProcess functions are linked up for intercepting and monitoring a process creation process; at the same time, NtCreateProcess and NtCreateProcessEx functions which are executed during process creation are needed to be intercepted for judging whether a created process is allowed to run or not, so as to intercept illegal process creation; and when a system calls the process notification callback function, the process under creation is judged again to guarantee to accurately obtain a username corresponding to the process, so as to realize the goal of controlling the process to run or not according to users. The process blacklist and whitelist control method provided by the invention is high-efficiency.

The present relation relates to recombinant vesicular stomatitis virus for use as prophylactic and therapeutic vaccines for infectious diseases of AIDS. The present invention encompasses the preparation and purification of immunogenic compositions which are formulated into the vaccines of the present invention.

The invention relates to a method for reducing the viral and microbial content of biological extracts which contain solids. It is provided that the method comprises the steps

• (a) provision of the biological extract which contains solids, comprising a biologically active substance, selected from enzymes, proteins and peptides, or a mixture of such substances; and
• (b) subjecting the biological extract provided in step (a) to a high-pressure treatment;

wherein the biological activity of the biological extract which contains solids after the high-pressure treatment is at least 50% of the biological activity of the biological extract which contains solids before the high-pressure treatment.

A single-use length adjustable disposable sanitary cover temporarily houses a handle of a shopping device or hospital cart. The disposable sanitary cover includes a flexible cylindrical sleeve having an elongated slit and at least one length adjustment means integrated within the cylindrical sleeve adapted for adjusting the length of the sleeve to correspond to the length of the shopping device or hospital cart. Length adjustment means may comprise at least one accordion section, perforated section, telescoping section or folded section. Stabilizing means to mitigate movement of the cylindrical sleeve along the cart handle may be provided. The handle of the shopping device or hospital cart is received through the elongated slit, lengthwise adjustment is imparted, and the handle is effectively housed within the cylindrical sleeve, thereby mitigating viral and germ contact between the handle of the device or cart and the shopper's or hospital worker's hands. Preferably, the lengthwise adjustable disposable cover includes a tab member for removal from the handle of the shopping cart.

The invention relates to the technical field of quick reproduction of plants, and aims to provide a method for establishing a lily embryogenic callus regeneration system by using stamens as explants. The method comprises the following steps: material acquisition, callus-induced culture medium preparation, explant inoculation and callus induction, small plant regeneration, successive transfer culture of small plants, and transplanting of small plants. The method has the characteristics of low pollution rate, high callus inductivity, large callus conglomeration, favorable callus embryogenic property, high regeneration capacity and high reproducibility; especially, as antheral filaments in the young bud are used as the explants, the pollution rate can be lowered to 0, the embryogenic callus inductivity of up to 15% can be obtained, the callus conglomeration reproducibility is 100%, the embryogenic property is high, and 6 stamens contained in each bud can obtain 60-120 small plants on the whole.

A single-use disposable sanitary cover temporarily houses a handle of a shopping device or hospital cart. The disposable sanitary cover includes a flexible cylindrical sleeve having an elongated slit, and stabilizing means integrally associated therewith. The stabilizing means mitigates movement of cylindrical sleeve along the hospital cart's or shopping device's handle. The handle of the shopping device or hospital cart is received through the elongated slit and is housed within the cylindrical sleeve in order to mitigate the viral and germ contact between the handle of the shopping device or hospital cart and the shopper's or hospital worker's hands. Preferably, the disposable sanitary cover includes a tab member for removing the disposable sanitary cover from the handle of the shopping cart.

The invention discloses a Chrysanthemum morifolium tissue culturing and breeding method. The method enables a large amount of high-quality Chrysanthemum morifolium seedlings to be obtained within a short period to be obtained in order to meet the needs of the market. The method comprises the steps of aseptic material obtaining, inductive culturing bud propagation and rooting, strong seedling culturing, and rooted seedling transplanting. Axillalry buds are used as an explants, and the tissue culturing method is used to rapidly breed, so the disadvantages of long period, low breeding coefficient, easy infection and propagation of viruses, and the like of routine cutting and division breeding of Chrysanthemum morifolium are overcome; and tissue culture seedlings produced by using the method have the advantages of few viruses, stable heredity and the like.

The invention relates to the bone grafting technical field, and discloses a cervical vertebral fusion cage and a fabrication method of the cervical vertebral fusion cage. In the invention, the cervical vertebral fusion cage is a quadrate or board-shaped bone graft made by processing an allogenic cortical cone, wherein the bone graft is provided with an instrument clamping part and a hollowed chamber having a filling port; the instrument clamping part is arranged at one end of the bone graft; and two groups of opposite sides of the bone graft respectively form certain included angles. The cervical vertebral fusion cage is the quadrate or board-shaped bone graft which meets the requirement of clinical bone grafting; moreover, the bone graft is provided with the hollowed chamber to fill autogenous bone, therefore the cervical vertebral fusion cage is easy to be degraded by human body with good fusion effect, and the rejection can be greatly reduced. Furthermore, disinfection process is carried out to the cervical vertebral fusion cage to reduce the risk caused by viruses or microorganisms which spread disease to the cortical bone, as well as various immunological rejection risks.

The invention discloses a multifunctional closestool cover. The multifunctional closestool cover mainly comprises a closestool cover main body, ultraviolet sterilization lamps and a water storage tank, a connecting water pipe is arranged inside the closestool cover main body, cleaning nozzles are connected to the front side of the connecting water pipe, water spraying holes are formed in the outersides of the cleaning nozzles, a protective baffle is arranged on the inner sides of the water spraying holes, draft fan is arranged inside the protective baffle, a front filter screen is arranged onthe rear side of the draft fan, an activated carbon adsorption net is arranged on the rear side of the front filter screen, a dried flower layer is arranged on the rear side of the activated carbon adsorption net, and the ultraviolet sterilization lamps are arranged at the lower positions of the inner side of the closestool cover main body. The multifunctional closestool cover has the advantagesthat a toilet seat is regularly cleaned by using the cleaning nozzles, so that the generation of viruses, bacteria and parasites can be reduced; the draft fan, the front filter screen, the activated carbon adsorption net and the dried flower layer are arranged, so that peculiar smell generated by a closestool can be filtered and purified; and the ultraviolet sterilization lamps can sterilize the interior of the closestool, so that people can be prevented from being infected by the bacteria in the using process.

The invention relates to a method for rapidly propagating radix pseudostellariae seedlings. The method comprises the following steps: performing sterile treatment on winter buds of radix pseudostellariae as explants, performing tissue culture such as adventitious bud induction, performing multiple shoot induction and adventitious root induction, and further performing domestication and transplanting. By optimizing specific parameters of different steps and combination of culture medium components, the quality of radix pseudostellariae test tube seedlings can be improved, the survival rate of the radix pseudostellariae test tube seedlings can be further increased after transplanting, plants can grow healthy, underground earthnuts can be enlarged, and the yield of the radix pseudostellariaecan be increased. A reliable method is provided for industrial production of radix pseudostellariae, and long-term stable development of the radix pseudostellariae industry can be promoted.

Disclosed herein are methods and compositions for calicivirus. Methods comprise in vitro cell culture systems used for diagnosis, identification, attenuation and other uses. Compositions comprise in vitro cell culture systems for calicivirus.

The invention discloses a tissue culture and propagation method of clerodendrom bungei. A large number of high-quality clerodendrom bungei seedlings can be obtained in a short period, and the market requirements are met. The method comprises the steps of aseptic material obtaining, bud induction culture, bud propagation, rooting and rooting seedling transplanting. Axillary buds are used as explants; fast propagation is performed by a tissue culture method; the culture medium is improved; the trophic factors such as acid hydrolyzed casein are added; the defects of long conventional cottage anddivision propagation period, low propagation coefficient, easy infection, virus spreading and the like of the clerodendrom bungei are overcome. The tissue culture seedlings produced by the method havethe advantages of few viruses, inheritance stability and the like.

The invention discloses a method for cultivating Flammulina velutipes on two sides in bags. The method comprises the steps of selecting plastic bags, preparing culture materials, bagging, sterilizingand inoculation, culturing and managing Flammulina velutipe yield. According to the method, the Flammulina velutipes grow on the two sides in the bags, the investment is low, the cost is low, and thebenefit is high.

The invention relates to a process for increasing the observed titer of a virus stock for the purpose of increasing the calculated log reduction (LRV) in virus clearance studies. A tissue culture or assay plate is seeded with an indicator cell line and titrated with a virus stock followed, by a centrifugation step for about 5 minutes to about 24 hours at a g-force ranging from about 50×g to about 2400×g, and at a temperature from about 4° C. to about 39° C. The resulting calculated virus titer after undergoing the centrifugation step is 10-fold higher than the virus titer would be if determined in the absence of the centrifuging step.

The invention discloses a novel fresh air ventilator for building ventilation. The novel fresh air ventilator comprises a shell, a fixing groove, a fixing block, a heat exchanger and an air inlet pipe, the fixing block is installed in the shell, two sides above the fixing block are provided with exhaust structures, an installation shell is installed in each exhaust structure, a fan is installed ineach installation shell, turbine blades are arranged on the outer side of each fan, a protection shell is installed on the front side of each installation shell, the periphery of the heat exchanger is connected with an air duct, an air inlet and the exhaust structures through a hose, a housing is installed on the front side of the shell, and a protective plate is arranged on the front side of thehousing. By the arrangement of the heat exchanger, indoor heat is recovered maximumly during ventilation, the problem about falling room temperature in winter is solved, and indoor staff are prevented form catching cold; the novel fresh air ventilator can be disassembly by the arrangement of the protective plate, regular cleaning of a filter element is facilitated, and normal operation of the novel fresh air ventilation is guaranteed.

Herein is described a modified viral vector comprising: a coat protein modified, for example by the addition of a cysteine residue, such that the modified viral vector yields less soluble virus relative to that from an unmodified viral vector upon extraction of plant material infected with the modified viral vector, thereby facilitating purification of a recombinant protein expressed from the modified viral vector. Also described is a method of reducing viral coat protein impurities during purification of a recombinant protein, a method of biocontainment for a recombinant viral vector, and a method of generating virus inoculum for the modified viral vector.

The present disclosure is directed to, in combination, a protective cover in juxtaposition with artificial turf, the protective cover permitting air and water to pass through the protective cover and reduce bacteria growth and viruses in artificial turf while permitting dissipation of heat from artificial turf and to protect artificial turf and markings or indicia thereon from sunlight, frost, snow and ice. The protective cover includes a structure of at least one layer of an open mesh weave of thermoplastic material in which the weave has warp and weft strips forming a thin substantially uniform layer having opposed major surfaces and openings therein to permit moisture and air to pass therethrough, and a layer of lace coating on at least one of the major surfaces, the layer of lace coating only partially covering a portion of at least one major surface.