BACKGROUND The continuing urbanization in China has resulted in a loss of land and rights among farmers. The social security of landless farmers has attracted considerable research attention. However, only few studies measure the health-related quality of life (HRQOL) of landless farmers by employing scientific standardized scales. By using five-dimensional European quality of life (EQ-5D) scal...

People are living increasingly large swaths of their lives through their online accounts. These accounts are brimming with sensitive data, and they are often protected only by a text password. Attackers can break into service providers and steal the hashed password files that store users’ passwords. This lets attackers make a large number of guesses to crack users’ passwords. The stronger a pas...

this article presents the key insights about the environment and security links in the context of the persian gulf region. this research paper focuses on the challenge of finding a balance among development, armed conflicts and environmental degradation in the persian gulf region. environmental security challenges are human security, sustainable development and regional cooperation in the persi...

From the security point of view, one challenge for today's distributed ar-chitectures is to support interoperation between applications relying on diierent possibly inconsistent security policies. This paper proposes a practical approach for dealing with the coexistence of diierent security policies in distributed architectures. We introduce a model for specifying security policies in terms of ...

Enforcement of security properties by Operating Systems is an open problem. To the best of our knowledge, the solution presented in this paper is the first one that enables a wide range of integrity and confidentiality properties to be enforced. A unified formalization is proposed for the major properties of the literature and new ones are defined using a Security Property Language. Complex and...

Received: 8 April 2008 Revised: 15 August 2008 2nd Revision: 18 January 2009 Accepted: 23 February 2009 Abstract Information security has become increasingly important to organizations. Despite the prevalence of technical security measures, individual employees remain the key link – and frequently the weakest link – in corporate defenses. When individuals choose to disregard security policies a...

Language-based information flow methods offer a principled way to enforce strong security properties, but enforcing noninterference is too inflexible for realistic applications. Security-typed languages have therefore introduced declassification mechanisms for relaxing confidentiality policies, and endorsement mechanisms for relaxing integrity policies. However, a continuing challenge has been ...

Language-based information flow methods offer a principled way to enforce strong security properties, but enforcing noninterference is too inflexible for realistic applications. Securitytyped languages have therefore introduced declassification mechanisms for relaxing confidentiality policies, and endorsement mechanisms for relaxing integrity policies. However, a continuing challenge has been t...