Wands and other medical devices

WANDs of the Black Ring

Necessary conditions for various algebraic types of the Weyl tensor are determined. These conditions are then used to find Weyl aligned null directions for the black ring solution. It is shown that the black ring solution is algebraically special, of type Ii, while locally on the horizon the type is II. One exceptional subclass – the Myers-Perry solution – is of type D.

Coding System Design for Medicines and Medical Devices in Iran

Background and Aim: The importance of managing medicines and medical devices as vital resources in healthcare industry cannot be ignored. Therefore, the application of coding systems could be of great help in the control of the required processes. This study aims to develop a coding system for medicines and medical devices in Iran. Materials & Methods: This descriptive study was planned to be ...

Effective Dose of Radiation in Diagnostic and Interventional Cardiac Angiography among Pediatrics and Adolescents in Hospitals of Shiraz University of Medical Sciences versus Other Radiology Devices

Background: Cardiac catheterization and angiography are diagnostic and therapeutic imaging modalities that produce the highest X-ray radiation, which might impose lifelong risks to patients. This study aimed to evaluate radiation burden among children and adolescents with congenital heart diseases, who underwent cardiac catheterization and angiography. Then the results were compared with other ...

Wands Are Magic: A Comparison of Devices Used in 3D Pointing Interfaces

In our pilot study with 12 participants, we compared three interfaces, 3D mouse, glove and wand in a 3D naturalistic environment. The latter two were controlled by the same absolute pointing method and so are essentially identical except for the selection mechanism, grasp action versus button. We found that the mouse performed worst in terms of both time and errors which is reasonable for a rel...

Medical Devices Containing DEHP Plasticised PVC; Neonates and Other Groups Possibly at Risk from DEHP Toxicity