Location of pattern-disturbing structures in the vicinity of an antenna Final report, Jun. 5, 1963 - Sep. 15, 1966

Location of radiation pattern disturbing structures in vicinity of satellite antenn

Reflections on the 1976 Swine Flu Vaccination Program

The swine flu vaccination program has implications for the current pandemic preparedness

The metabolism of glycine in experimental porphyria

No Abstrac

Books

Medical audit Audit in Action. Ed. by Richard Smith. Pp. xiv + 245. Illustrated. £10,95. London: British Medical Journal. 1992. Available from Libriger Book Distributors, Bloemfontein.Rheumatology Bailliere's Clinical Rheumatology: Giant Cell Arteritis and Polymyalgia RheuIDatica. Guest eds B. L. Hazleman and B.-A. Bengtsson. Pp. xi + 507. illustrated. £27,50. London: Bailliere Tindall. 1991.AIDS, drugs and sexual risk AIDS, Drugs and Sexual Risk. By N. McKeganey and M. Bamard. Johannesburg: Random Century. 1992.Radiation When is a Dose Not a Dose? By Victor P. Bond. Pp. 39. Illustrated. Bethesda: National Council on Radiation Protection and Measurements. 1992.Autoimmune disease Clinical and Molecular Aspects of Autoimmune Diseases. Vol. 8. Ed. by J. M. Cruse and R. E. Lewis. Pp. x + 258. Illustrated. SFr. 248. Basel: Karger. 1992.Biochemical toxicology Principles of Biochemical Toxicology. 2nd ed. By J. A. Timbrel!. Illustrated. Pp. 415. RI53,73. London: Taylor & Frands. 1991.Advances in pineal research Advances in Pineal Research. Vol. 6. Ed. by Andrew Foldes and R. J. Reiter. pp. viii + 286. illustrated. £32,50. London: John Libbey. 1991.Health care for the future The Future of Health Care. Pp. 83. Illustrated. London: British Medical Journal. 1992.STDs and AIDS School Health Education to Prevent AIDS and Sexually Transmitted Disease. Pp. 79. SFr. 18. Geneva: World Health Organisation. 1992

Diamphotoxin: the arrow poison of the Kung bushmen

Purification de la diamphotoxine et étude de ses caractéristiques pharmacologiques et biochimiques

Preliminary Solar Sail Design and Fabrication Assessment: Spinning Sail Blade, Square Sail Sheet

Blade design aspects most affecting producibility and means of measurement and control of length, scallop, fullness and straightness requirements and tolerances were extensively considered. Alternate designs of the panel seams and edge reinforcing members are believed to offer advantages of seam integrity, producibility, reliability, cost and weight. Approaches to and requirements for highly specialized metalizing methods, processes and equipment were studied and identified. Alternate methods of sail blade fabrication and related special machinery, tooling, fixtures and trade offs were examined. A preferred and recommended approach is also described. Quality control plans, inspection procedures, flow charts and special test equipment associated with the preferred manufacturing method were analyzed and are discussed

Pap Smear Readability on Google: An Analysis of Online Articles Regarding One of the Most Routine Medical Screening Tests

Background: The Papanicolaou smear (Pap smear, Pap test) is one of the most routine screening tests performed in medicine. The development and widespread use of this test has brought a considerable decrease in the incidence of cervical cancer. Unfortunately, this disease process continues to convey significant morbidity and mortality. These persistent phenomena may be the result of inadequate compliance with routine Pap smear screening, in which limited education is thought to play a role, particularly among ethnic minority groups. Methods: A Google search using the phrase “pap smear” was performed and the first fourteen web addresses were analyzed using four standardized readability indices: the Flesh-Kinkaid Grade Level, the Simple Measure of Gobbledygook, the Gunning Fog Index and the Automated Readability Index. The average grade level readability was then compared to the American Medical Association recommendation that health care information should be written at a 5th or 6th-grade reading level (i.e., ages 10-12 years). Results: The average grade-level readability values of the fourteen analyzed sites using the four aforementioned indices were 8.9, 8.8, 11.9, and 8.4, respectively. The mean readability of all four indices was 9.5. Conclusion: The grade-level readability of commonly accessed internet information regarding Pap smears is above the recommendation of the American Medical Association. Health care providers and website authors should be cognizant of this, as it may impact compliance. This is particularly important given that this routine healthcare test is recommended for nearly fifty percent of the world’s population at various points throughout their lifetime

Feasibility of Electrified Propulsion for Ultra-Efficient Commercial Aircraft Final Report

MIT, Aurora Flight Sciences, and USC have collaborated to assess the feasibility of electric, hybridelectric, and turbo-electric propulsion for ultra-efficient commercial transportation. The work has drawn on the team expertise in disciplines related to aircraft design, propulsion-airframe integration, electric machines and systems, engineering system design, and optimization. A parametric trade space analysis has been carried out to assess vehicle performance across a range of transport missions and propulsion architectures to establish how electrified propulsion systems scale. An optimization approach to vehicle conceptual design modeling was taken to enable rapid multidisciplinary design space exploration and sensitivity analysis. The results of the analysis indicate vehicle aero-propulsive integration benefits enabled by electrification are required to offset the increased weight and loss associated with the electric system and achieve enhanced performance; the report describes the conceptual configurations than can offer such enhancements. The main contribution of the present work is the definition of electric vehicle design attributes for potential efficiency improvements at different scales. Based on these results, key areas for future research are identified, and extensions to the trade space analysis suitable for higher fidelity electrified commercial aircraft design and analysis have been developed