© 2015 Journal of ophthalmic and Vision research | published by Wolters KluWer medKnoW There have been significant advances in the field of mobile phone technology in the last decade. Smartphones are increasingly considered as handheld computers instead of simple phones because they have powerful computing capabilities, remarkable onboard memories, high resolution screens and, more importantly,...

The radiofrequency electromagnetic fields (RF-EMFs) produced by widely used mobile phones are classified as possibly carcinogenic to humans by International Agency for Research on Cancer (IARC). Current data on the relationship between exposure to RF-EMFs generated by commercial mobile phones and brain cancer are controversial. Our studies show that this controversy may be caused by several par...

We use survey data conducted in 11 countries in Sub-Saharan Africa in 2011 to analyze how the availability of physical infrastructure influences adoption of mobile phones and usage of mobile services. The availability of physical service infrastructure is approximated by data on nighttime light intensity in the areas in which survey respondents reside. After controlling for a number of individu...

Currently there are many different Identity Management Systems which differ in their architectures as well as use different protocols and serve different purposes and are extensively used by organisations to provide online services. With the remarkable growth of mobile phones in the last few years, both in number and computational power, more and more users are accessing an array of online serv...