Most wireless systems receive a license that gives them exclusive access to a block of spectrum. Exclusivity guarantees adequate quality of service, but it also leads to inefficient use of spectrum. Even when the license holder is idle, no other device can use the spectrum. This paper explores an alternative paradigm for secondary access to spectrum, where a secondary device can transmit when a...

Most wireless systems receive a license ~hat gives them exclusive access to a block of spectrum. Exclusivity guarantees adequate quality of service, but it also leads to inefficient use of spectrum. Even when the license holder is idle, no other device can use the spectrum. This paper explores an alternative paradigm for secondary access to spectrum, where a secondary device can transmit when a...

background: despite significant reduction in global disease prevalence, leprosy still has a high rate of disability while its determinants are unfair and many of them are amendable. the objective of this study was to measure inequality of disability in leprosy in iran. methods: this was a cross‑sectional study (2006‑2007) on all living people affected by leprosy registered in w. azerbaijan prov...

background: infant mortality rate is a useful indicator of health conditions in the society, the racial and socioeconomic inequality of which is from the most important measures of social inequality. objectives: the aim of this study was to determine the socioeconomic inequality and its determinants regarding infant mortality in an iranian population. patients and methods: this cross-sectional ...

[Purpose] The aim of this study was to develop a new handle holder by modifying the inclination of the existing handle holder to reduce load on the wrist joints. [Subjects and Methods] The subjects of this study consisted of 25 elderly people aged 65 years or older accustomed to a walker-assisted gait. Two types of handle holders ((1) standard handle holder (2) inclination handle holder) were a...

MEMS and other lab-on-a-chip systems are emerging as attractive alternatives to carry out experiments in situ the electron microscope. However, several electrical connections are usually required for operating these setups. Such connectivity is challenging inside the limited space of the TEM side-entry holder. Here, we design, implement and demonstrate a double-tilt TEM holder with capabilities...

Background & objectives: Women's health is an important indicator for development of countries, because women are more vulnerable than men. Health is not just a biological issue and socioeconomic inequality plays an important role in health outcomes. Therefore, the purpose of this research was to determine the relationship between social and economic inequality and the health status of women. ...

Electric vehicle cell industry is an emerging area with fierce competition on technical innovation, in which the patent holder can choose different innovation diffusion options to maximize return; however, strategy unclear certain scenarios. We tried explain question of how holder’s return by appropriate license promote EV diffusion, when and licensing relationship exist supply chain. A multist...