In this paper, we discuss Bitfrost, the security model developed by the One Laptop Per Child project for its XO laptop computers. Bitfrost implements a number of security measures intended primarily to deter theft and malware, but which also introduce severe threats to data security and individual privacy. We describe several of the technical provisions in Bitfrost, outline the risks they enabl...

Long Term Evolution (LTE), is also known as 4G is a rapidly growing common global technology and it becomes attractive for modern mobile devices such as the smart phones, laptop computers a tablet computers. The internal antennas embedded in these modern mobile devices are smaller in size and hence they are usually demanding for practical applications. In this paper review of several promising ...

Background: The qualitative computers (laptop) are as one of the sources of electromagnetic fields (EMF) and these waves are emitted from laptop when you are working with it or connecting to the internet (wireless).The aim of this study is assaying the effects of 2.4GHz waves on the spermatogenesis cycle at the time of connecting to the internet. Materials and Methods: In this study, 36 adult W...

This paper describes the Work Environment Profile (WEP) program and its use in risk identification by computer. It is installed into a hand-held computer or a laptop to be used in risk identification during work site visits. A 5-category system is used to describe the identified risks in 7 groups, i.e., accidents, biological and physical hazards, ergonomic and psychosocial load, chemicals, and ...

Liquid crystals (LCs) are organic molecules which are typically elongated and have a non-uniform distribution of the electrical charges in the molecule, resulting in a dipole. LCs are widely used in displays of computers and other electronic devices. The rapid obsolescence rate of electronics results in large amounts of liquid crystal display (LCDs) entering the environment. Merck Company (Germ...

Laptop Orchestras (LOs) have recently become a very popular mode of musical expression. They engage groups of performers to use ordinary laptop computers as instruments and sound sources in the performance of specially created music software. Perhaps the biggest challenge for LOs is the distribution, management and control of software across heterogeneous collections of networked computers. Sof...

Many universities now require students to use laptop computers in their curriculum. It is important that these institutions evaluate and measure their progress in achieving purported goals. One approach is the assessment of computer self-efficacy at various educational phases. Our study focuses on the initial data analysis gathered from business majors at varying stages of education. Our analys...

A major problems in the operation of laptop computers is overheating since it can affect the performance and stability, sometimes leading to system crash and hardware fatality. The objective of this work was to study the thermal behavior inside a laptop computer and to test the effectiveness of aproposed cooling method to overcome overheating problem. The proposed cooling system contained a the...

OBJECTIVE To compare users' speed, number of entry errors and satisfaction in using two current devices for electronic data collection in clinical research: handheld and laptop computers. DESIGN The authors performed a randomized cross-over trial using 160 different paper-based questionnaires and representing altogether 45,440 variables. Four data coders were instructed to record, according t...