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Now showing items 241-250 of 259
Constraint-enhanced role engineering via answer set programming
(
Association for Computing Machinery
, 2012 , Conference Paper)
Role engineering (RE) aims to develop and maintain appropriate role-based access control (RBAC) configurations. However, RE with constraints in place is not well-studied. Constraints usually describe organizations' security ...
Compliance checking for usage-constrained credentials in trust negotiation systems
(
Springer Berlin Heidelberg
, 2012 , Conference Paper)
We propose an approach to placing usage-constraints on RT credentials; issuers specify constraints by designing non-deterministic finite automata. We show by examples that this approach can express constraints of practical ...
Tracking and constraining authorization provenance
(
Springer Berlin Heidelberg
, 2012 , Conference Paper)
Authorization provenance concerns how an authorization is derived. It appears important to define authorization provenance to (1) analyze policy bases, (2) defend against a class of attacks, and (3) audit authorizations. ...
A novel technique for extraction of geothermal energy from abandoned oil wells
(2012 , Conference Paper)
This paper investigates the possibility of design and construction of a geothermal heat exchanger suitable for installation in abandoned oil wells. Based on the in-situ data collected, an amenable heat transfer numerical ...
Extracellular matrix (ECM)
(
Springer Netherlands
, 2012 , Book chapter)
Summary: The region of space at the periphery of cyanobacterial cells is the interface between the environment and intracellular processes. This metaspace may include a structure appressed to the outer wall and membrane, ...
Isolation of entomopathogenic Bacillus from a biodynamic olive farm and their pathogenicity to lepidopteran and coleopteran insect pests
(
Elsevier Ltd
, 2012 , Article)
The occurrence of Bacillus entomopathogenic bacteria on a Tunisian biodynamic farm was determined by examining 75 samples from olive tree (Olea europaea L.) habitats. A total of 40 Bacillus isolates were characterized ...
All that glitters is not gold: Challenges of teacher and school leader licensure licensing system in Qatar
(
Elsevier Ltd
, 2012 , Article)
In 2001, the Government of Qatar began a comprehensive education reform (Education for a New Era)
based on RAND’s recommendations and options for building an educational system that would meet the
country’s changing ...
On critical point avoidance among mobile terminals in healthcare monitoring applications: Saving lives through reliable communication software
(
IEEE
, 2012 , Conference Paper)
The advances in Microelectromechanical systems (MEMS), battery life, low powered communication standards, more capable processing units, and hybrid communication have cemented the use of mobile Wireless Body Area Networks ...
Embedded system design with filter bank and fuzzy classification approach to critical cardiac abnormalities detection
(
IEEE
, 2012 , Conference Paper)
Embedded Electrocardiogram (E-ECG) based health diagnosis of cardiac diseases has been a saturated area of research and almost any known heart-condition can be detected and diagnosed by doctors in the hospital setting. ...
Power and task management in wireless body area network based medical monitoring systems
(
Springer Nature
, 2012 , Conference Paper)
Intelligent healthcare systems incorporating wireless sensors in a ubiquitous computing environment have the potential to revolutionize outpatient care. Such systems must balance effective and timely reporting of results ...