Clock synchronization is a service widely used in distributed networks to coordinate data acquisition and actions. As the requirement to achieve tighter synchronization accuracy arose, protocols like the Precision Time Protocol introduced hardware timestamping, shifting the point where the timestamp is drawn from the application layer twards the physical layer. However, the spread of the synchr...

BACKGROUND To investigate the relationship between obesity and health-related quality of life (HRQL) in a randomly selected Chinese sample. METHODS A total of 3600 residents aged 18-80 years were sampled in five cities of China using a randomized stratified multiple-stage sampling method to receive the interview, with a self-completed questionnaire to collect demographic information, and the ...

The New Zealand Disability Strategy (Minister for Disability Issues 2001) distinguishes between disability and impairments. Individuals do not have disabilities. Rather, they may have physical, sensory, neurological, psychiatric, intellectual, or other impairments. According to the Strategy, “Disability is the process which happens when one group of people create barriers by designing a world o...

cognitive impairments describe a state of diminished or impaired mental and/or intellectual function such as alzheimer's disease, huntington's disease and parkinson's disease. as these disorders are more frequent in the elderly and due to the ageing of population, serious attention must be paid to these diseases. exercise has shown to have preventive and therapeutic effects on co...

Gaze-based assistive technology (gaze-based AT) has the potential to provide children affected by severe physical impairments with opportunities for communication and activities. This study aimed to examine changes in eye gaze performance over time (time on task and accuracy) in children with severe physical impairments, without speaking ability, using gaze-based AT. A longitudinal study with a...

abstract—in this paper, the problem of secure transmission in two-hop amplify-and-forward (af) systems with an untrusted relay is investigated. to prevent the untrusted relay from intercepting the source message and to achieve positive secrecy rate, the destination-based cooperative jamming (dbcj) technique is used. in this method the destination sends an intended jamming signal to the relay. t...

objective: medically unexplained symptoms are physical symptoms, which cannot be explained by organic ‎causes. this study aimed to investigate mental health in patients with medically unexplained ‎physical symptoms. ‎ method: one hundred outpatients who were admitted to the electro diagnosis clinic of imam khomeini ‎hospital, ahvaz/iran, participated in this study. data were collected using phy...

BACKGROUND Health-related quality of life measurements are necessary tools for current situation assessment of all populations. They are absolutely beneficial for evaluation of rehabilitation services which are known as major clinical sources for improving quality of life in physically impaired patients.The design and implementation of this study involved determination of the relationship betwe...