Thesis (M.App.Sc.) - Carleton University, 2005. / Includes bibliographical references (p. 99-100). Also available in electronic format on the Internet.

Thesis (M.S.)--West Virginia University, 2005. / Title from document title page. Document formatted into pages; contains xi, 100 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 81-84).

Thesis (M.A.)--The University of North Carolina at Greensboro, 2010. / Directed by Rick Bunch; submitted to the Dept. of Geography. Title from PDF t.p. (viewed Jul. 7, 2010). Includes bibliographical references (p. 85-87).

Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2006. / Andrew, Alfred, Committee Member ; Durgin, Gregory, Committee Member ; Li, Geoffrey, Committee Member ; Ingram, Mary Ann, Committee Member ; Stuber, Gordon, Committee Chair.

Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2006. / Leach, William M., Committee Member ; Sills, James A., Committee Member ; Kenney, J. Stevenson, Committee Chair ; Zhou, G. Tong, Committee Co-Chair ; Fenney, Robert K., Committee Member.

The research problem addressed in this study was to develop a marketing plan consisting of selected elements that would give a cellular company like Vodacom a competitive advantage over competitors and to capture a significant market share when marketing mobile data services like 3G. To achieve this object, a literature study to determine the key components of a marketing plan was undertaken and a theoretical model was selected to develop a marketing plan of selected components In addition to the literature study, an empirical study was conducted to identify core concepts critical to the development of a selected element marketing plan to market 3G and re-launch mobile data services. The results of the literature study were combined with the empirical study and a marketing plan based on McDonald was developed. Michael Porter’s five forces model was used as a reference to discuss the competitor analysis, a marketing strategy was compiled with specific referencing to the four P’s of marketing and marketing controls formed the basis of this research. This study concludes with recommendations applicable for the implementation of the marketing plan and options for further research.

M.Sc. (Information Technology) / A new particle swarm optimisation (PSO) algorithm that produces solutions to the xed spectrum frequency assignment problem (FS-FAP) is presented. Solutions to the FS-FAP are used to allocate frequencies in a mobile telecommunications network and must have low interference. The standard PSO algorithm's velocity method and global selection is ill suited for the frequency assignment problem (FAP). Therefore using the standard PSO algorithm as base, new techniques are developed to allow it to operate on the FAP. The new techniques include two velocity methods and three global selection schemes. This study presents the results of the algorithm operating on the Siemens set of COST 259 problems and shows that it is viable applying the PSO to the FAP.

Cell phone use has become ubiquitous in many settings, including the college classroom. Research has shown many negative impacts of cell phone usage on classroom outcomes. For this reason, professors have implemented polices to reduce in-class cell phone use. An ABAB design was used to evaluate a reinforcement-based policy in an undergraduate course (N = 9). The policy involved allowing the students two 2-minute “technology breaks” throughout the three-hour course. Technology breaks conditions were alternated with baseline conditions in which there were no programmed consequences for cell phone use. Data on cell phone use was collected using the PLACHECK method in which trained observers counted the number of students physically interacting with their phones at 10 second intervals. Results showed that usage decreased during the intervention phase (M = 0.5%) from baseline (M = 0.8%). Researchers also calculated quiz scores for the two conditions. There was no statistically significant difference between intervention (M = 70.3%) and baseline conditions (M = 69.2%), (F(7) = 1.68, p = .24). Overall, the study showed technology breaks as a promising way to incorporate a reinforcement-based procedure to reduce classroom cell phone use, but the policy did not reduce cell phone usage to zero.

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado. / Background: Previous research has reported an association between texting messages sent and De Quervain's tenosynovitis (DQT) symptomatology. However, these studies do not report smartphone dependence and DQT symptomatology. Objective: We aimed to evaluate the association between problematic smartphone use (PSU) and DQT symptomatology among young adults. Design: Analytical cross-sectional study. Methods: We included adults between 18 and 25 years and evaluated DQT symptomatology's presence using the Finkelstein test. We used Experiences Related to Mobile Phone Use Questionnaire to measure the PSU. We carried out a generalized linear model from the Poisson family. We calculated the crude and adjusted prevalence ratios (PR) with their 95% confidence interval (CI). Results: In total, we analyzed 491 subjects, the majority were women (52%), and the median age was 20 years. Of the total study population, 53% had positive results in the Finkelstein test, while 53% of the population had PSU. After adjusting our generalized linear model for confounders variables, we found that there is a higher prevalence of DQT symptomatology in those participants with occasional PSU and frequent PSU compared with participants without PSU, (aPR = 1.73, 95% CI: 1.47–2.05) and (aPR = 1.61; 95% CI: 1.29–2.00); respectively. We also found a higher prevalence of DQT symptomatology related to the number of hours per day in smartphones, pain with smartphones in the last week and using WhatsApp. Conclusion: We found a higher prevalence of De Quervain's tenosynovitis symptomatology in the people with problematic smartphone use. / Revisión por pares

Does the use of a cell phone while driving influence the driver's ability to execute a proper turn? Is there difference between genders pertaining to motor skill while driving in a simulated driving environment? To accomplish this task, three groups of ten participants (5 women and 5 men) each were tested using a scripted test scenario focusing on left and right turns. The participants were made to drive through a test scenario to get used to the driving simulator. The scenario for the experimental group was an inner-city training scenario with the presence of vehicular traffic and the main focus area was on six critical turns (3 left and 3 rights). The apparatus used for this study was the "Patrol Simulator" built by GE Driver Development. A 2 (Gender) x 3 (Cell phone condition) between subjects design was used to assess the differences in mean driving performance between gender (male and female) at 3 cell phone conditions (No Phone, Phone No Conversation, Phone with Conversation). The study verified that cellular phones would adversely affects a driver's ability to perform turns, and showed that gender plays a role in this effect. However, it did confirm that gender does not play any role in a person's overall ability to drive. The results indicated a significant main effect for Cell phone Condition for overall turns , F (2, 24) = 38.83, p > .0005, n[eta]² = .76. Results also indicated a significant interaction between Gender and Cell Phone Conditions, F (2, 24) = 3.97, p=.032, n[eta]² = 0.25.