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  • Other Sources  (3)
  • 1995-1999  (2)
  • 1985-1989  (1)
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  • 1
    Publication Date: 2019-07-18
    Description: Most surgical instrumentation and implants used in the world today are designed with sophisticated Computer-Aided Design (CAD)/Computer-Aided Manufacturing (CAM) software. This software automates the mechanical development of a product from its conceptual design through manufacturing. CAD software also provides a means of manipulating solid models prior to Finite Element Modeling (FEM). Few surgical products are designed in conjunction with accurate CAD models of human anatomy because of the difficulty with which these models are created. We have developed a novel technique that creates anatomically accurate, patient specific CAD solids from medical images in a matter of minutes.
    Keywords: Computer Programming and Software
    Type: 1999 American Association of Neurological Surgeons Annual Meeting; Apr 24, 1999 - Apr 29, 1999; New Orleans, LA; United States
    Format: text
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  • 2
    Publication Date: 2019-07-12
    Description: Seven human volunteers were subjected to stressful Coriolis stimulation (rotating chair) either during the fasted state or following the ingestion of yogurt (6 oz). Subjects tested after yogurt reached a malaise-III (M-III) endpoint of motion sickness after significantly (p smaller than 0.01) fewer head movements than subjects tested in the fasted state. Surface electrogastrogram (EGG) recordings at M-III were similar for both dietary stats and consisted of a brief period of tachygastria, followed by a period of low-amplitude EGG waves. Ingestion of yogurt enhanced susceptibility to motion sickness but did not affect the associated pattern of EGG.
    Keywords: AEROSPACE MEDICINE
    Type: Aviation, Space, and Environmental Medicine (ISSN 0095-6562); 60; 214-217
    Format: text
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  • 3
    Publication Date: 2019-08-28
    Description: At the request of the President of the United States through the Office of Science and Technology Policy (OSTP), the NASA Administrator tasked the Aerospace Safety Advisory Panel with the responsibility to identify and review issues associated with the safe operation and management of the Space Shuttle program arising from ongoing efforts to improve and streamline operations. These efforts include the consolidation of operations under a single Space Flight Operations Contract (SFOC), downsizing the Space Shuttle workforce and reducing costs of operations and management. The Panel formed five teams to address the potentially significant safety impacts of the seven specific topic areas listed in the study Terms of Reference. These areas were (in the order in which they are presented in this report): Maintenance of independent safety oversight; implementation plan for the transition of Shuttle program management to the Lead Center; communications among NASA Centers and Headquarters; transition plan for downsizing to anticipated workforce levels; implementation of a phased transition to a prime contractor for operations; Shuttle flight rate for Space Station assembly; and planned safety and performance upgrades for Space Station assembly. The study teams collected information through briefings, interviews, telephone conversations and from reviewing applicable documentation. These inputs were distilled by each team into observations and recommendations which were then reviewed by the entire Panel.
    Keywords: Space Transportation
    Type: NASA-TM-111835 , NAS 1.15:111835
    Format: application/pdf
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