Stick-slip motion such as that observed at Whillans Ice Stream, West Antarctica, is one example of transient forcing significantly affecting longer-term ice-stream dynamics. We develop and present a two-dimensional map-plane viscoelastic model of perturbations to ice-stream dynamics suitable for simulating and analyzing stick-slip behavior. Model results suggest important roles in stick-slip mo...

This paper introduces a novel gesture interface for sketching out rough 3D stick figure animation. This interface can allow users to draw stick figures with the system automatic assistance in figure proportion control. Given a 2D hand-drawn stick figure under a parallel view, there is a challenge to reconstruct a unique 3D pose from a set of candidates. Our system utilizes figure perspective re...

background: nurses are at risk of injuries caused by sharp instruments in hospitals. the objective of this study was to investigate the frequency of injuries due to sharp instruments and its relevant factors among nurses of imam reza hospital, kermanshah, iran. methods: this descriptive-analytic study was conducted on 258 nurses working at imam reza hospital of kermanshah, iran, in 2013. the da...

conclusions the door-to-needle (dtn) time, in a standard setting, is recommended to be less than 30 minutes. according to the results of this study, the dtn time is comparatively two times longer in females and afternoon and night shifts. different variables including emergency staff, physicians, patients’ characteristics, and environmental/physical factors induced this difference. results in t...

conclusion hepatitis b vaccination of all nonimmune healthcare workers and measuring hbsab after vaccination can reduce the risk of nosocomial transmission of hbv to medical staff. furthermore, the risk of blood-borne disease transmission can be reduced by educating medical personnel on effective methods of reducing the risk of nssis as well as taking appropriate measures when nssis occur. resu...

Tomasello and colleagues have offered various arguments to explain why apes find the comprehension of pointing difficult. They have argued that: (i) apes fail to understand communicative intentions; (ii) they fail to understand informative, cooperative communication, and (iii) they fail to track the common ground that pointing comprehension requires. In the course of a review of the literature ...

We motivate and discuss the design of a physically intuitive haptic drumstick. A new musical instrument is physically intuitive if the physics of haptic interaction are similar to those supported by a traditional musical instrument. We suggest that physically intuitive new musical instruments may help performers transfer motor skills from familiar, traditional musical instruments. Both actively...

The present study makes two contributions to the literature on tactile feedback. First, it investigates the effect of tactile feedback in isometric rate control devices. The use of tactile feedback in this type of device has not been systematically investigated. An isometric joystick, such as the IBM TrackpointTM in-keyboard pointing device does not perceptibly move and is operated by force. Ca...

We report two experiments in which participants categorized target words (e.g., BLOOD or CUCUMBER) according to their canonical colour of red or green by pointing to a red square on the left or a green square on the right. Unbeknownst to the participants, the target words were preceded by the prime words ‘‘red’’ or ‘‘green’’. We found that the curvature of participants’ pointing trajectories wa...