Duty.

Selective Catalytic Reduction for Heavy-duty and Light-duty Vehicles

Whereas previous emission limit values could be met by primary engine control measures, the limits for PM and NOx from heavy duty engines in 2008/09 (Euro V) and diesel passenger cars in 2014/15 (Euro 6) represent a challenge for the developers of diesel engines and vehicles. Due to the thermodynamics of the Diesel combustion process, it is difficult to optimise the combustion process for both ...

RECQ1's double duty

Why are cel ls so tense? C ells might be able to rapidly adjust their stiffness by contracting myosin motors, according to a new cytoskeleton model from Daisuke Mizuno, Christoph Schmidt (Georg-August-Universität, Göttingen, Germany), and colleagues. Cells adjust their rigidity when they interact with the extracellular matrix, for example, and when an external force acts on them. To mimic cytos...

It's our duty!

The duty to protect.

Privilege and confidentiality are central to the physician–patient relationship. These concepts are protected by law in almost all jurisdictions (1,2). Breaches of confidentiality have long been considered unethical and, in many situations, actionable. In this regard, physicians have been governed by their standards of practice, by the regulations of their professional colleges, and in many jur...

Separation of Duty administration

Access control administration is a huge task. Administration tools should assist the administrator in ensuring that the access control requirements are met. One example of an access control requirement is Separation of Duty (SoD). SoD requirements specify that no single person may have sufficient authority to complete a business process unilaterally. The SoDA prototype administration tool has b...