There is growing operational awareness of the challenges in securely operating IPv6 networks. Through a measurement study of 520,000 dual-stack servers and 25,000 dual-stack routers, we examine the extent to which security policy codified in IPv4 has also been deployed in IPv6. We find several high-value target applications with a comparatively open security policy in IPv6 including: (i) SSH, T...

The UK National Health Service has a long history of recruiting overseas nurses to meet nursing shortages in the UK. However, recruitment patterns regularly fluctuate in response to political and economic changes. Typically, the UK government gives little consideration of how these unstable recruitment practices affect overseas nurses. In this article, we present findings from two independent r...

Using the results of the assessment of desirability from the viewpoint of employees and the computer analysis of space syntax, the desirability factors of work desk arrangement in office space have been analyzed in the present study. Firstly a pictorial questionnaire was distributed among 113 employees in two offices of Tabriz city to obtain the desirable sitting places in the room (considering...

Until recently, it was considered necessary for features in the two eyes to be matched before the evaluation of differences in their locations (binocular disparities) could reveal depth information. Motion in depth can also be perceived binocularly from related changes in the locations of matched binocular features. However, unmatched features can arise when a binocular object occludes more dis...

In this work a Cartesian impedance controller for flexible joint robots is applied in a mobile manipulation setup for opening a door. The considered mobile manipulation system is a combination of the DLR-Lightweight-Robot-II and the DLR-Hand-II with a mobile platform. The presentation focuses on the Cartesian impedance control of the arm with special emphasis on the treatment of the joint elast...

OBJECTIVES The purpose of this study was to analyze recent trends in door-to-reperfusion time and to identify hospital characteristics associated with improved performance. BACKGROUND Rapid reperfusion improves survival for patients with acute ST-segment elevation myocardial infarction (STEMI). METHODS In this retrospective observational study from the National Registry of Myocardial Infarc...

AIM. To study social, demographic, clinical, and forensic profiles of frequently re-hospitalized (revolving-door) psychiatric patients. METHODS. The study included all patients (n=183) who were admitted to our hospital 3 or more times during a 2-year period from 1999 through 2000. We compared these patients to 2 control groups of patients who were admitted to our hospital in the same period. Fo...