Abstract: A method for using large chambers, located deep within the earth, for the disposal of processed waste is disclosed. In this context, waste includes solid waste from sewage, and other organic-waste materials from urban, agricultural or industrial sources. These wastes will be processed by mechanical pulverization and hydration to produce a slurry, which will be injected into the well's chamber. The anaerobic condition in the chamber will be conducive to the production of gases, especially methane which will be harvested as a source of industrial fuel. Hydrogen, ammonia and other gases will also be harvested. This system will alleviate the acute problem of disposal of wastes from urban agricultural and industrial sources. It will decrease pollution of the air with greenhouse gases and pollution of the land area water with organic wastes and also release of disease-causing pathogens. The system may be adapted to facilitate the disposal of nuclear wastes.

Abstract: The invention describes compositions and methods for treatment of rheumatoid arthritis and osteoarthritis. The compositions comprise insoluble, native collagen Type II in a particular form in combinations with other active agents, including glucosamine, chondroitin, ascorbate, boron and magnesium. Also described are methods for producing particulated insoluble native collagen Type II.

Abstract: A method for direct serum assay of steroid hormones wherein the competition from binding protein, having an affinity for complexing with the steroid hormones, is significantly eliminated by adding to the serum an artificial compound which has a greater or equal affinity for the binding protein than do the steroid hormones, and which is not immuno-reactive with the steroid hormones. Because the compound is artificial, it is non-contaminating. Levonorgestrel and norethindrone as such compounds are disclosed.

Abstract: An immunoradiometric assay in which an antigen is reacted to its specific antibody, which complex is then separated and further reacted with a second, universal antibody. This second, universal antibody contains a chelating moiety, such as transferrin, capable of binding specifically and strongly short-lived radionuclides. The second complex, once formed is reacted with a radionuclide and the radio-activity is measured, determining thereby the quantity of the unknown antigen originally present.

Abstract: An intracervical contraceptive device (ICD) is provided with an elongated, circular cylindrical stem having a hollow bore which allows the flow of fluids from the uterus. Two opposed long arms and two opposed short arms are formed at one end of the stem and extend into the uterine cavity to prevent inadvertent expulsion of the device. The long arms flair outwardly in the lateral plane of the uterine cavity while the short arms flair outwardly in a plane parallel to the anterior-posterior plane of the uterine cavity. A barrel-shaped sleeve surrounds the stem and initially conforms to the contour of the walls of the cervical canal. The sleeve is composed of a biodegradable binder material impregnated with a pharmaceutical agent which prevents spermatozoa from performing their fertilization function when the pharmaceutical agent is released into fluids passing over the sleeve.