Bilateral renal cell carcinoma was diagnosed simultaneously in 6 patients and sequentially in 4 patients, 3 to 14 years after the first tumor had been removed by nephrectomy. Four patients treated conservatively with incomplete excision of the malignant disease are alive 18 months to 14 years after diagnosis. Oue experience suggests that a radical excision, requiring renal dialysis or transplantation, is seldom warranted.
Army Prolect NumberNight Operations Sub Unit b-00 A723This document has been approved for public release and sale; its distribution is unlimited. BESRL Technical Research Reports and TechnicalResea~rch Notes are intended for sponsors of R&D tasks and other research and militery agencies. Any findings ready for implementation at the time of publication are prcsented in the latter part of the Brief. Upon completion of a major phase of the ta'sk, formal recommendations for official action normally are conveyed to zppropriate military agencies by briefing or Disposition Form. The present publication describes the research methodology and findings from the first of a series of research phases of the BESRL program. These findings provide information on performance with the night vision devices and test technologies for field experimentation as rapidly as the information becomes available and do not represent a complete analysis of the results. The research is aimed at providing information to operational users, training commands, and as an aid to other researchers in the area. Followup reports, analyzing other portions of the data, are in preparation. J. .ýTLýANEDirector zBehavior and Systems Research Laboratory I! SEARCH EFFECTIVENESS WITH PASSIVE NIGHT VISION DEVICES BRIEF Requirement:To assess performance effectiveness with selected passive night vision devices. The first operational objective was to determine which factors affect performance, and to what extent. The second objective was to identify and develop means of improving performance effectiveness. Procedure: Four devices, the Miniscope (MINI), Starlight Scope (SS), Crew Served Weapon Night Vision Sight (CSWS), and the Night Observation Device, Medium Range (NOD), were evaluated simultaneously. One hundred twenty-three operators (players) were tested at the rate of nine per night. Testing was conducted under starlight, half-moon, and full-moon illumination conditions. The 72 targets presented each night were of different types, contrast, and modes, and stationed at distances of 100 to 1200*meters from the players. Operators searched a hetergenecus terrain nearly continuously for a period of six hours. Detection responses and search behavior were recorded on magnetic tape. The data were analyzed to determine how effective performance was, and the effects of critical variables and search behavior on performance effectiveness. Findings:Operators differed greatly in their ability to detect targets during search. Operators showed low reliability in detection of specific targets. About 50 percent of the targets that could actually be seen were not found during search. The primary cause of inefficient performance was faulty search techniques.Operators are capable of almost continuous use of the devices for relatively long ¾ periods (at least six hours) without degradation of performance, in contrast to previous reports of degradation after about 30 minutes.Performance with the NOD was superior to performance with the other devices. Overall level of performance ...
Magnus and pitch plane data at Mf. = 1.5 to 2.5 have been obtained on a small fineness ratio (jf/d = 3) body of revolution. Data nave teer. obtained at angles of attack up to 40 under turbulent boundary layer conditions. The Magnus data are non-linear with spin and with ingle of attack ana the Magnus force at most spin condition.: Is negative in the low angle of attack region.
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