Mars in situ propellants: Carbon monoxide and oxygen ignition experiments

Carbon monoxide and oxygen were tested in a standard spark-torch igniter to identify the ignition characteristics of this potential Mars in situ propellant combination. The ignition profiles were determined as functions of mixture ratio, amount of hydrogen added to the carbon monoxide, and oxygen inlet temperature. The experiments indicated that the carbon monoxide and oxygen combination must have small amounts of hydrogen present to initiate reaction. Once the reaction was started, the combustion continued without the presence of hydrogen. A mixture ratio range was identified where ignition occurred, and this range varied with the oxygen inlet temperature

Improvements in the preparation of heterologous antilymphocyte globulin with special reference to absorption and diethylaminoethyl cellulose batch production

Antilymphocyte gamma-G globulin (ALGG) was produced from the serum of immunized horses. Modifications of the preliminary absorption techniques permitted the removal of undesirable, extraneous antibodies. With the use of a batch technique, pure gamma-G globulin could then be removed in bulk quantities. The resulting product was first confirmed to have immunosuppressive qualities in dogs and then given a clinical trial. In patients, its administration occasionally caused low-grade fever and thrombocytopenia. Pain at the injection site was not eliminated. Precipitin antibody responses have apparently been prevented in the patients but not a host response to Forssman antigens. © 1969

Renal transplantation at the university of Colorado

From March 1962 to April 1963, 118 patients were treated with renal transplantation, 3 with kidneys from identical twins, 9 with cadaveric homografts, and 106 with homografts from volunteer donors. Sixty-two of the patients are still alive after nine months to almost five years. The only completely satisfactory group was that of the identical twin recipients. The results after homotransplantation have not materially improved during this time despite the acquisition of increased experience, adjustments of timing and dosage of azathioprine and prednisone, and attempts to identify biologically suitable donors in advance of operation by tissue typing. It is suggested that an impasse has been reached, beyond which further reduction in mortality and morbidity will depend primarily upon the effective application of new immunosuppressive techniques. © 1967 by The Williams and Wilkins Co