Search results for "Laptop"
showing 7 items of 7 documents
Decision Making in Screening Diagnostics E-Medicine
2014
The paper discusses development of the e-medicine system for preventive examinations and screening and its computer implementation. System is based on a mobile telemedicine screening complex (MTSC), which includes a laptop, a questionnaire about the state of organism’s 12 systems and 14 measurement modules for objective measurement acquisition.
Information Ecology as a holistic lens to understand ICTD initiatives
2016
Techno-centric initiatives to bridge the digital divide, such as One Laptop per Child (OLPC), has been criticized for not taking a holistic approach. This has led to limited success in areas such as providing quality education in developing countries. In this paper, we offer a premise for a holistic understanding by borrowing from the field of information ecology. To illustrate our premise, we applied the theoretical lens of information ecology to analyze a case study of Open Learning Exchange (OLE) which has been described as one of the few successes in implementing OLPC. Based on our analysis, we posit that information ecology is a suitable and appropriate lens to interpret and understand…
Experimental Assessment of the Backoff Behavior of Commercial IEEE 802.11b Network Cards
2007
It has been observed that different IEEE 802.11 commercial cards produced by different vendors experience different performance, either when accessing alone the channel, as well as when competing against each other. These differences persist also when thorough measurement methodologies (such as RF shielding, laptop rotation, etc) are applied, and alignment of the environmental factors (same laptop models, traffic generators, etc) is carried out. This paper provides an extensive experimental characterization of the backoff operation of six commercial NIC cards. It suggests a relevant methodological approach, namely a repeatable, well defined, set of experiments, for such a characterization. …
A novel miniature telemetric system for recording EEG activity in freely moving rats
2008
Telemetric recording systems offer the advantage to monitor physiological parameters in freely moving animals without any restrictions in their explorative behaviour. We present a novel, inexpensive, portable and reusable telemetric system to record the electroencephalogram (EEG) from adult freely moving rats under various experimental conditions. Our system consists of an implantable transmitter which communicates at a sampling rate of 500 Hz bi-directional with a receiver via radio transmission (in EU: 868.35 MHz; in USA: 916.5 MHz) over a distance of up to 3 m. The switching time between receiving and transmitting signals is 20s and the data transmission rate amounts to 115.2 kbps. The r…
Acceptance of E-Learning Devices by Dental Students
2013
Background: E-Learning programs and their corresponding devices are increasingly employed to educate dental students during their clinical training. Objective: Recent progress made in the development of e-learning software as well as in hardware (computers, tablet PCs, smartphones) caused us to more closely investigate into the habits of dental students in dealing with these learning techniques. Methods: Dental students during their clinical training attended a survey compiled in cooperation with biostatisticians. The questionnaire probands were asked to complete based on previous surveys of similar subjects, allowing single as well as multiple answers. The data, which were obtained with re…
Low-Cost Sensor Based on SDR Platforms for TETRA Signals Monitoring
2021
The paper presents the design and implementation of an electromagnetic field monitoring sensor for the measurement of the Terrestrial Truncked Radio (TETRA) signals using low-cost software defined radio (SDR) platforms. The sensor includes: an SDR platform, a Global Positioning System (GPS) module and a hardware control module. Several SDR platforms having different resolutions of the analog–digital converters were tested in the first phase. The control module was implemented in two variants: a fixed one, using a laptop, and a mobile one, using a Raspberry Pi. The tests demonstrate the following achieved performances: instantaneous acquisition band of 5.12 MHz
Domestication of a laptop on a wireless university campus: a case study
2010
<span>This study reports how university students domesticate their personal laptops at the beginning of studies on a wireless campus. The aim was to examine how students integrate the laptop into their personal education experience, what sort of processes were experienced to render the laptop useful and meaningful, and how gender and IT proficiency influenced this process. Qualitative interview data with twenty students (identified and selected by quantitative survey) was analysed using the grounded theory approach during which a multi-aspect domestication process was identified. Results highlight the importance of a structured way of organising laptop initiatives in universities. It …