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Abstract security patterns and the design of secure systems

Cybersecurity 2022年第3期5卷 1-17页

作者： Eduardo B.Fernandez Nobukazu Yoshioka Hironori Washizaki joseph yoder Department of Electrical Engineering and Computer Science Florida Atlantic UniversityBoca RatonFLUSA GRACE Center National lnstitute of lnformaticsTokyoJapan Waseda University TokyoJapan The Refactory IncUrbanaILUSA

During the initial stages of software development,the primary goal is to define precise and detailed requirements without concern for software *** constraints should be introduced then and must be based on the semantic aspects of applications,not on their software architectures,as it is the case in most secure development *** these stages,we need to identify threats as attacker goals and indicate what conceptual security defenses are needed to thwart these goals,without consideration of implementation *** can consider the effects of threats on the application assets and try to find ways to stop *** threats should be controlled with abstract security mechanisms that can be realized by abstract security patterns(ASPs),that include only the core functions of these mechanisms,which must be present in every implementation of *** abstract security pattern describes a conceptual security mechanism that includes functions able to stop or mitigate a threat or comply with a regulation or institutional *** describe here the properties of ASPs and present a detailed *** relate ASPs to each other and to Security Solution Frames,which describe families of related *** show how to include ASPs to secure an application,as well as how to derive concrete patterns from ***,we discuss their practical value,including their use in“security by design”and IoT systems design.

关键词： Security patterns Secure software development Security requirements Secure software architecture loT systems design

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Occupational Eye Lens Radiation Dose While Performing Interventional Procedures over 18 Months Using a Face-Shield Equipped Suspended Radiation Protection System

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Open Journal of Radiology 2020年第2期10卷 101-114页

作者： Thomas J. Kwarcinski Andrew Lichliter joseph Oros Niraj KC Bryan yoder Chet R. Rees Department of Radiology Baylor University Medical Center Dallas TX USA

Background: Numerous studies have demonstrated increasing evidence for cataractogenesis at lower levels of ionizing radiation than previously believed, with some suggesting possible absence of a threshold. Genetic differences between individuals also result in increased susceptibility in some operators, who might not be aware. European occupational exposure limits have been reduced and operators are seeking protective measures. Objective: To evaluate the protective effect of a face-shield equipped suspended protection system (Zero-Gravity®, TIDI Products, Neenah, WI) along with adherence to safety practices against radiation dose to the eye lens for an interventional radiologist performing a wide variety of procedures. Materials and Methods: In this institutional review board-approved single-institution study, one interventional radiologist wore a highly sensitive personnel monitoring dosimeter badge on the cap near the left eye while performing 299 procedures (3690 fluoroscopy minutes) over 18 consecutive months while utilizing the suspended protection system along with adherence to other generally recommended safety practices and movement away from the field during angiographic power injections. Dosimetry reports and procedural information were retrospectively reviewed. Results: Total lens dose equivalent to the left eye over 18 months was 0.11 mSv (annualized dose = 0.073 mSv, or 7.3 mRem). The patient-dose-area product standardized dose of 0.00576 μSv/Gy⋅cm2 is well below reports of conventional lead aprons, shields, and protective eyewear. Conclusion: Eye exposur

关键词： Lens Dose Reduction Radiation Safety Radiation-Induced Cataractogenesis Suspended Protection System

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