Mobile Phone System Research Articles

Factors Influencing Purchasing Intention of Smartphone among University Students

Abstract Mobile communication has made an impact towards interaction between people while conducting business either locally or internationally. The expansion of mobile communication technology e.g. wireless internet, mobile phone and Global Positioning System (GPS) are constantly evolving and upgrading as a result of consumers’ changing needs and preferences. Therefore, this paper examines about factors influencing purchasing intention of smartphone among university students. The result shows that three variables that are product features, brand name and social influence have significant relationship except one variable, product sacrifice that has no significant relationship with purchasing intention.

Mobile Phone Based System Opportunities to Home-based Managing of Chemotherapy Side Effects.

Objective:Applying mobile base systems in cancer care especially in chemotherapy management have remarkable growing in recent decades. Because chemotherapy side effects have significant influences on patient’s lives, therefore it is necessary to take ways to control them. This research has studied some experiences of using mobile phone based systems to home-based monitor of chemotherapy side effects in cancer.Methods:In this literature review study, search was conducted with keywords like cancer, chemotherapy, mobile phone, information technology, side effects and self managing, in Science Direct, Google Scholar and Pub Med databases since 2005.Results:Today, because of the growing trend of the cancer, we need methods and innovations such as information technology to manage and control it. Mobile phone based systems are the solutions that help to provide quick access to monitor chemotherapy side effects for cancer patients at home. Investigated studies demonstrate that using of mobile phones in chemotherapy management have positive results and led to patients and clinicians satisfactions.Conclusion:This study shows that the mobile phone system for home-based monitoring chemotherapy side effects works well. In result, knowledge of cancer self-management and the rate of patient’s effective participation in care process improved.

Tracking Cholera through Surveillance of Oral Rehydration Solution Sales at Pharmacies: Insights from Urban Bangladesh.

BackgroundIn Bangladesh, pharmacy-purchased oral rehydration solution (ORS) is often used to treat diarrhea, including cholera. Over-the-counter sales have been used for epidemiologic surveillance in the past, but rarely, if ever, in low-income countries. With few early indicators for cholera outbreaks in endemic areas, diarrhea-related product sales may serve as a useful surveillance tool.Methodology/Principal FindingsWe tracked daily ORS sales at 50 pharmacies and drug-sellers in an urban Bangladesh community of 129,000 for 6-months while simultaneously conducting surveillance for diarrhea hospitalizations among residents. We developed a mobile phone based system to track the sales of ORS and deployed it in parallel with a paper-based system. Our objectives were to determine if the mobile phone system was practical and acceptable to pharmacists and drug sellers, whether data were reported accurately compared to a paper-based system, and whether ORS sales were associated with future incidence of cholera hospitalizations within the community. We recorded 47,215 customers purchasing ORS, and 315 hospitalized diarrhea cases, 22% of which had culture-confirmed cholera. ORS sales and diarrhea incidence were independently associated with the mean daily temperature; therefore both unadjusted and adjusted models were explored. Through unadjusted cross-correlation statistics and generalized linear models, we found increases in ORS sales were significantly associated with increases in hospitalized diarrhea cases up to 9-days later and hospitalized cholera cases up to one day later. After adjusting for mean daily temperature, ORS was significantly associated with hospitalized diarrhea two days later and hospitalized cholera one day later.Conclusions/SignificancePharmacy sales data may serve as a feasible and useful surveillance tool. Given the relatively short lagged correlation between ORS sales and diarrhea, rapid and accurate sales data are key. More work is needed in creating actionable algorithms that make use of this data and in understanding the generalizability of our findings to other settings.

A Development of Black Box for Vehicle using Android Platform

This study researched on the convergence system of Bluetooth 3.0 technology and Android application including image security technology. By using the independent network of Bluetooth, this system is not only capable of storing images in case of occurring events but also capable of transmitting images. A Bluetooth technology for vehicle camera used in ITS or intelligent car is adapted. To memorize and monitor the information of happenings inside or outside of a vehicle, the camera module is designed and performed. A vehicle black box applied Android application for a smart mobile phone and Android system was developed. The system of a vehicle camera test is also setting up.

Effect of Magnetic Field From Mobile Phone on Brain

Human exposure to electromagnetic field (EMF) comes from many different sources and occurs in various situations in everyday life. Man-made static fields are mainly found in occupational settings, such as close to magnetic resonance imaging (MRI) scanners, although DC high-voltage overhead transmission lines are being constructed, which are expected to expose larger parts of the population to static electric and magnetic fields.Today, for power regulation most modern electrical equipment uses electronics instead of transformers. Examples include the switched power supplies to laptops, drilling tools, chargers of mobile phones and similar devices. As a consequence, the frequency content of the daily magnetic field exposure has changed mainly by adding odd harmonics (150 Hz, 250 Hz, 750 Hz, etc.). In particular, the third harmonic (150 Hz) has become another dominating frequency in our environment.In particular for brain tissues, the mobile phone used at the ear remains the main source of exposure. However, since the first generation of mobile telephony, the technology aimed at reducing the emitted power of mobile handsets. In particular, for Global System for Mobile communication (GSM) already the introduction of dynamic power control reduced the average output power to about 50% of its rated value during calls, whereas the use of discontinuous transmission during voice calls gave a further 30% reduction in average emitted power. Adaptive power control became faster and more effective in the third-generation (3G) of mobile telephony systems leading to a further reduction (by about two orders of magnitude) in the specific absorption Specific energy Absorption Rate (SAR) compared to GSM phones. In addition, hands-free kits reduce the energy absorbed by the head drastically. Digital Enhanced Cordless Telecommunications (DECT) phones are another source of everyday exposure.

Features of equalization in LTE technology with MIMO and SC-FDMA

The Long Term Evolution (LTE) is one of communication standards for next-generation mobile phones, which has evolved the high-speed data communication standard HSDPA for the mainstream 3G (third generation) mobile phone system W-CDMA at present. Data communication volume of mobile phones is rapidly increasing at present due to dissemination of smart phones and mobile communication. Therefore, expansion of communication band (capacity) is a critical issue for communication carriers. Because the LTE that allows high-speed data communication with low delay is superior in terms of the radio wave use efficiency, many of major communication carriers in the world have indicated a policy of adopting the LTE. The rapid dissemination of the LTE in the future is expected. In this report we overview the fundamental techniques of equalization in LTE technology with MIMO and SC-FDMA in channels where the maximum delay exceeds the length of the Guard Interval. The goal of employing narrow band subcarriers is to obtain a channel that is roughly constant over each given sub band, which makes equalization much simpler at the receiver. There are considering advantage and disadvantage three types equalization techniques: time domain, frequency domain and turbo equalization. On base of these compeering are giving practical recommendation for choice method of equalization. To enhance this frequency use efficiency, antenna technologies, including Multi Input Multi Output (MIMO) that allows transmission/reception with multiple antennas and Space Division Multiple Access (SDMA) that allows multiple access between base stations, have been introduced. Furthermore, Orthogonal Frequency Division Multiple Access (OFDMA) and Single Carrier Frequency Division Multiple Access (SC-FDMA) are used as multiplexing systems.

Workshop Synthesis: System Based Passive Data Streams Systems; Smart Cards, Phone Data, GPS

Each day, huge quantities of passive data streams are collected by smart card, GPS, Bluetooth and mobile phone systems all over the world. These data happen to be very useful to transport planners, because of the valuable spatial and temporal information they contain. This paper is a synthesis of a workshop on passive data streams held in Australia in November 2014. Many issues are discussed here: definitions, data collection and processing, privacy, how to use these data for transport planning, how to integrate these data with traditional and more “active” data sources, such as household travel surveys that respondents are explicitly asked to participate in, and how to cope with the absence of socio-demographic attributes in passive data streams.

Measurement of Electromagnetic Field Attenuation by Building Walls in the Mobile Phone and Satellite Navigation Frequency Bands

The electromagnetic (EM) wave attenuation by building walls is experimentally investigated, focusing on the frequency range 700 MHz-5 GHz. The results of this research can be used in the planning of the indoor radio coverage of wireless access networks like 2G, 3G, 4G, WiFi, and future 5G mobile phone systems, in the study of satellite navigation applications, and in the evaluation of the resident population exposure to electromagnetic fields emitted by the radio base stations (RBSs) of the mobile phone radio access network (RAN). Measurements are obtained using a portable vector network analyzer (VNA) connected to two light Vivaldi antennas. Time-domain methods are used to reduce errors caused by multiple paths. Measurements of EM building wall attenuation have been carried out in the city of Rome, Italy, in different buildings topologies: historical buildings from the Roman Empire up to middle 19th-century and modern reinforced concrete buildings. Measurements of EM shielding effectiveness (SE) show values even greater than 80 dB.

Do in-car devices affect experienced users' driving performance?

Distracted driving is considered to be an important factor in road safety. To investigate how experienced user's driving behaviour is affected by in-vehicle technology, a fixed-base driving simulator was used. 20 participants drove twice in a rich simulated traffic environment while performing secondary, i.e. mobile phone and navigation system tasks. The results show that mean speed was lower in all experimental conditions, compared to baseline driving, while subjective effort increased. Lateral performance deteriorated only during visual–manual tasks, i.e. texting and destination entry, in which the participants glanced off the forward road for a substantial amount of time. Being experienced in manipulating in-car devices does not solve the problem of dual tasking when the primary task is a complex task like driving a moving vehicle. The results and discussion may shed some light on the current debate regarding phone use hazards.

A novel approach to independent taxi scheduling problem based on stable matching

This paper describes a taxi scheduling system, which aims to improve the overall efficiency of the system, both from the perspective of the drivers and the customers. This is of particular relevance to Chinese cities, where hailing a taxi on the street is by far the most common way in which taxis are requested, since the majority of taxi drivers operate independently, rather than working for a company. The mobile phone and Global Positioning System-based taxi scheduling system, which is described in this paper, aims to provide a decision support system for taxi drivers and facilitates direct information exchange between taxi drivers and passengers, while allowing drivers to remain independent. The taxi scheduling problem is considered to be a non-cooperative game between taxi drivers and a description of this problem is given. We adopt an efficient algorithm to discover a Nash equilibrium, such that each taxi driver and passenger cannot benefit from changing their assigned partner. Two computational examples are given to illustrate the effectiveness of the approach.

Simulation of a Characteristics Identification Algorithm

Keystroke rhythm identification, which extracts biometric characteristics through keyboards without additional expensive devices, is a kind of biometric identification technology. The paper proposes a dynamic identity authentication model based on the improved keystroke rhythm algorithm in Rick Joyce model and implement this model in a mobile phone system. The experimental results show that comparing with the original model, the false alarm rate of the improved model decreases a lot in the mobile phone system, and its growth of imposter pass rate is slower than the Rick Joyce models. The improved model is more suitable for small memory systems, and it has better performance in security and dynamic adaptation. This improved model has good application value.

Augmented reality system using lidar point cloud data for displaying dimensional information of objects on mobile phones

Abstract. Mobile augmented reality system is the next generation technology to visualise 3D real world intelligently. The technology is expanding at a fast pace to upgrade the status of a smart phone to an intelligent device. The research problem identified and presented in the current work is to view actual dimensions of various objects that are captured by a smart phone in real time. The methodology proposed first establishes correspondence between LiDAR point cloud, that are stored in a server, and the image t hat is captured by a mobile. This correspondence is established using the exterior and interior orientation parameters of the mobile camera and the coordinates of LiDAR data points which lie in the viewshed of the mobile camera. A pseudo intensity image is generated using LiDAR points and their intensity. Mobile image and pseudo intensity image are then registered using image registration method SIFT thereby generating a pipeline to locate a point in point cloud corresponding to a point (pixel) on the mobile image. The second part of the method uses point cloud data for computing dimensional information corresponding to the pairs of points selected on mobile image and fetch the dimensions on top of the image. This paper describes all steps of the proposed method. The paper uses an experimental setup to mimic the mobile phone and server system and presents some initial but encouraging results

Survival and its determinants of Kaposi sarcoma in Tanzania: Retrospective study.

e20607 Background: Kaposi Sarcoma is the most common sarcoma and second most prevalent cancer seen in Tanzania. Its affect all age groups and strongly associated with AIDS. Little is known about disease/patients characteristics and survivorship in our settings, therefore this study expected to determine patients survival and its associated factors in Tanzania. Methods: Retrospective descriptive study using structured questionnaires. Patients with Kaposi Sarcoma diagnosed and treated at Ocean Road Cancer Institute, the only cancer care center in Tanzania were followed-up retrospectively using their hospital records and mobile phone communication system, with 199 patients included in the study. Descriptive, Bi-variate Analysis, Ordinal Regression, Life Tables and Kaplan Meier survival analysis as well as SPSS 16.0 and Log rants validity test were used during data analysis. Results: Mean age at KS diagnosis was 40 ± 12.012 yrs, with male (42.60 ± 12.6 yrs) population older than female ( 35.1 ± 9.7 yrs) . Patients waited 30 ± 120 days after diagnosis before start of treatment. Male : Female ratio was 1.6:1, with radiotherapy (82%) found to be most preferred modality of treatment. Skin (87.3%) was most primary organ affected followed by oral cavity (12.2%). Median and average survival of KS patients were 8 ± 0.613 months and 15.863 ± 1.407 months respectively. Primary organ affected and patient residence found significantly to influence survival while age, sex, treatment modality, hemoglobin level, time taken waiting for treatments found to be insignificant survival predictors. Serum white cell and platelets counts have not shown to influence survival with HIV found to affect 90% of Kaposi Sarcoma patients. Conclusions: Social demographic features, overall and median survival of patients with Kaposi Sarcoma in Tanzania, is closely related to other countries with similar settings but the latter two were significantly low compared to developed countries; This might be caused by differences in disease profile, late presentation, poor diagnostic and treatment resources seen in Tanzania compared with other settings.

Literature based Survey on ECG Based Integrated Mobile Tele-medicine System for Emergency Health Disorders

As health problem are unpredictable in this polluted environment, it is better to keep an eye on our health. If a particular patient of heart or something dangerous disease then one should avail for the patient to monitor his health. It is not always possible to monitor him with at most attention. We should have a better system that always is with patient to monitor clearly and make the record of abnormalities obtained. As mobile phones commonly present in everybody pocket as a phone, player, pager, and so as our life saver, if we are in dangerous or unconscious condition, it alerts the user or alerts doctor or relative by making a call to family doctor or the some relative, who can care about the user by using telemedicine using mobile phone system. In this article, the alert system has a sensor to monitor the body condition like in case of heart. ECG is the best technique for monitoring and knowing the condition of the heart. And this sensor sends the data to the mobile phone through the Bluetooth wireless communication to eliminate the cumbersome cables and enables the absolute mobility. The mobile phone receives the biomedical signal and analyses the received signal with the reference signal and process the signal to get different types of information’s that required to know the condition of the body. If any abnormalities like Tachycardia or Bradycardia (change of heart rate) in case of heart found in patient or users health then it will alert the patient by alarming and it make call to doctor in unconscious situations. The ECG graphical facilities are shown with help of Intel WML language.

Effects of 900 MHz Radiofrequency Radiation on Skin Hydroxyproline Contents

The present study aimed to investigate the possible effect of pulse-modulated radiofrequency radiation (RFR) on rat skin hydroxyproline content, since skin is the first target of external electromagnetic fields. Skin hydroxyproline content was measured using liquid chromatography mass spectrometer method. Two months old male wistar rats were exposed to a 900 MHz pulse-modulated RFR at an average whole body specific absorption rate (SAR) of 1.35 W/kg for 20 min/day for 3 weeks. The radiofrequency (RF) signals were pulse modulated by rectangular pulses with a repetition frequency of 217 Hz and a duty cycle of 1:8 (pulse width 0.576 ms). A skin biopsy was taken at the upper part of the abdominal costa after the exposure. The data indicated that whole body exposure to a pulse-modulated RF radiation that is similar to that emitted by the global system for mobile communications (GSM) mobile phones caused a statistically significant increase in the skin hydroxyproline level (p = 0.049, Mann-Whitney U test). Under our experimental conditions, at a SAR less than the International Commission on Non-Ionizing Radiation Protection safety limit recommendation, there was evidence that GSM signals could alter hydroxyproline concentration in the rat skin.

Violences conjugales : a-t-on progressé ?

Since the publication of the French national survey of violence against women in 2000, the fight against domestic violence has made steady progress. Knowledge of the phenomenon has significantly improved. A nationwide study of murders and manslaughters perpetrated by one partner of a couple against the other has been published annually since 2006. In 2012, domestic violence resulted in the deaths of 314 persons: 166 women, 31 men, 25 children, 9 collateral victims, 14 rivals, and two former spouses killed by their ex-fathers in law. In addition, 67 perpetrators committed suicide (51 men and3 women). The number of victims fluctuates from year to year but has remained fairly stable since 2006 (n=168). Legislation has improved significantly: eight new laws have been passed since 2004, all designed to protect women and to ensure that violent men are restrained and treated. New measures to inform and protect women have been implemented and others have been improved, such as the anonymous helpline (phone no 3919, "domestic violence information"). An inter-ministerial committee on the protection of women from violence and the prevention of human trafficking (MIPROF) was created on 3 January 2013. A website entitled "Stop violence against women " (Stop violences faites aux femmes) is now available. The "Imminent Danger" mobile phone system, designed to alert police if a suspected or known perpetrator breaches restraint conditions, will be extended to the entire country from January 2014. Referees charged with coordinating comprehensive long-tern care of women victims have been deployed at the county level. Information centers on the rights of women and families (CIDFF) now form a local nationwide network. Routine interviews with a midwife during the fourth month of pregnancy, focusing on the woman's emotional, economic and social conditions, have been implemented in 21 % of maternity units and should gradually be generalized. The authorities who have enforced the law have modified their behavior, as have the victims, although for a lesser extent. Perpetrators are increasingly subject to restraining orders, with an obligation to undergo treatment and to attend awareness sessions. Victims are also more likely to go to the police. Social workers, self-help groups and, since 2006, psychologists are now available for victim support in police stations. Management of perpetrators has improved. Finally, despite the continuing reluctance of many physicians, an encouraging trend is emerging among younger members of the profession. A recent survey of 1472 French medical students showed that, while 90 % of them said they had received no training in this area, 93 % considered that doctors should play a role and 95 % said they felt highly concerned. Specific university diplomas have been created and domestic violence is now included in the midwifery curriculum. The delicate question of prevention remains to be resolved; a program is currently being tested.

Based on HTTP Protocol Android Phones to Access the Web Server

The rapid development of 3 g mobile internet technology and the extensive use of intelligent mobile phone system make a user access the Internet not only can through a computer which has networking conditions, but also can through the mobile phone whenever and wherever. This paper designed and developed the method of accessing to the Web server based on the Android platform, it provides a quick and convenient way for the developers.

ECG Based Integrated Mobile Telemedicine System for Emergency Health Tribulations

As health problem unpredictable in this polluted environment, it is better to keep an eye on our health. If a particular patient of heart or something dangerous disease then one should avail for the patient to monitor his health. It is not always possible to monitor him with at most attention. We should have a better system that always is with patient to monitor clearly and make the record of abnormalities obtained. As mobile phones commonly present in everybody pocket as a phone, player, pager, and so as our life saver, if we are in dangerous or unconscious condition, it alerts the user or alerts doctor or relative by making a call to family doctor or the some relative, who can care about the user by using telemedicine using mobile phone system. In this article, the alert system has a sensor to monitor the body condition like in case of heart. ECG is the best technique for monitoring and knowing the condition of the heart. And this sensor sends the data to the mobile phone through the Bluetooth wireless communication to eliminate the cumbersome cables and enables the absolute mobility. The mobile phone receives the biomedical signal and analyses the received signal with the reference signal and process the signal to get different types of information’s that required to know the condition of the body. If any abnormalities like Tachycardia or Bradycardia (change of heart rate) in case of heart found in patient or users health then it will alert the patient by alarming and it make call to doctor in unconscious situations. The ECG graphical facilities are shown with help of Intel WML language.

Minimum Utilization of Electromagnetic (2G, 3G, 4G) Spectrum in Seamless Mobility Based on Various Estimation Methods

AbstractWireless Cellular Seamless Mobility is the most important feature of a wireless cellular communication system. Basically cell phones are used for communication purpose and therefore good cell coverage is needed to make and receive calls. Usually, continuous service is achieved by supporting handover from one cell to another. Handover is the process of changing the channel associated with the current connection while a call is in progress. It is often initiated either by crossing a cell boundary or by deterioration in quality of the signal in the current channel. Mobile IP, too, has to support redirection of data to a new foreign agent after the change of network access. In this case the additional delay caused by the redirection. The shorter the interruption of the service is -up to the ideal case of no service interruption. Minimizing the Delay based on some prior estimation methods in handover is better for quality of seamless connectivity anytime; anywhere across communication networks. All mobile phone system supports the seamless handover between base stations. To avoid the additional delay and wastage of Electromagnetic Spectrum, Mobile IP may use Optimizations such as rerouting of the whole packet in the flow of efficiently transmission of data with short interrupted service by Time series based Spectrum Estimation Technique. Due to the utilization of seamless handover mechanism it reduces the unwanted usage of Spectrum.

Simply configured Radio on Fiber link yielding positive gain for mobile phone system

Simply configured Radio on Fiber link yielding positive gain for mobile phone system