scholarly journals Transtelephonic Electrocardiographic Transmission in the Preparticipation Screening of Athletes

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
Theodoros Samaras ◽  
Savvato Karavasiliadou ◽  
Evangelia Kouidi ◽  
John N. Sahalos ◽  
Asterios Deligiannis
Keyword(s):  
Mobile Phone ◽  
Mobile Networks ◽  
Mobile Communications ◽  
Telephone Line ◽  
Young Athletes ◽  
Global System ◽  
Preparticipation Screening ◽  
Remote Areas ◽  
Gsm Network ◽  
The Mean

Transtelephonic electrocardiographic transmission (TET) is the most widespread form of telecardiology since it enables clinicians to assess patients at a distance. The purpose of this study was to assess the efficacy and effectiveness of TET either by fixed telephone line (POTS) or by mobile phone in the preparticipation screening of young athletes. A total of 506 players, aged 20.5 6.2 years, from 23 soccer clubs in the prefecture of Thessaloniki, Greece, were physically examined in their playfields by a general practitioner (GP) and had their ECG recorded. In 142 cases, and on the judgment of the GP, the ECG was transmitted via POTS and/or global system for mobile communications (GSM) to a specialised medical centre where it was evaluated by a cardiologist. The mean total time for recording, storing, and transmitting the ECG was four minutes per subject. It was found that the success rate for transmission at first attempt was similar for both fixed and mobile networks, that is, 93% and 91%, respectively. The failure rate in the GSM network was correlated to the reception level at the site of transmission. Only in about half ( = 74) of the transmitted ECGs did the cardiologist confirm “abnormal” findings, although in 16, they were considered to be clinically insignificant. Consequently, 58 athletes were referred for further medical examination. Our results indicate that TET (either by fixed telephone line or by mobile phone) can ensure valid, reliable, and objective measurements, and significantly contribute to the application of medical screening in a great number of athletes. Therefore, it is recommended as an alternative diagnostic tool for the preparticipation screening of athletes living in remote areas.

scholarly journals Protocol SS7 and the Security of Mobile Networks

2019 ◽  
pp. 6-11
Author(s):  
Kristina Guzhakovskaya ◽  
Yuriy Umnitsyn
Keyword(s):  
Cellular Networks ◽  
Mobile Networks ◽  
Mobile Communications ◽  
Modern World ◽  
Contemporary Society ◽  
Communication Tools ◽  
Global System ◽  
Telephone Exchange ◽  
Confidential Data ◽  
The World

The paper considers Global System for Mobile Communications, which plays the important role in contemporary society and carries new forms of dialog in the modern world. It is shown, that GSM-nets play two roles: firstly, they serve as communication tools for people who are in any point of world, and secondly, they can be used as tools for confidential data theft due to the old technology for telephone exchange setting, created as early as in the 1970s. Attacks using SS7 are often executed by hackers. After all, the attacker does not have to be close to the subscriber, and the attack can be made from anywhere on the planet. Therefore, to calculate the attacker is almost impossible, through this vulnerability can be hacked through almost any phone in the world. It will not be difficult to eavesdrop on conversations, intercept SMS, get access to the mobile Bank, social networks because of the vulnerability in the SS7 telephone infrastructure, through which service commands of cellular networks are transmitted. Due to the fact that the vulnerability with the Protocol SS7 is on the side of the operator, protection from such an attack is impossible. Until mobile operators are able to abandon this technology, this threat in the field of information security will remain relevant.

scholarly journals RANCANG BANGUN RUNNING TEXT P10 16x32 BERBASIS ARDUINO UNO DENGAN KOMUNIKASI SMS (SHORT MESSAGE SERVICE)

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Imelda U.V Simanjuntak ◽  
Asep Suhendar
Keyword(s):  
Mobile Phone ◽  
Mobile Communications ◽  
Short Message Service ◽  
Short Message ◽  
Global System ◽  
Text Display ◽  
Message Service ◽  
Information Media ◽  
Arduino Uno ◽  
X 32

[Id]Dalam perkembangan saat ini running text dapat menjadi salah satu media informasi yg banyak dipakai berupa berita maupun iklan yang dikemas dengan tampilan yang unik dan menarik. Penulisan teks saat ini kebanyakan mengandalkan unit komputer ataupun remote kontrol yang memiliki keterbatasan dalam hal jarak dan tidak efisien. Pada perancangan ini, Arduino Uno digunakan sebagai perangkat penghubung yang telah di program sehingga user atau operator dapat menggunakan running text sebagai media informasi dengan menggunakan komunikasi melalui SMS (short message service) dari telepon seluler, kemudian pesan diterima oleh modul GSM (global system for mobile communications) Sim800L yang diteruskan ke mikrokontroller Arduino Uno untuk ditampilkan pada display running text yang dapat berupa huruf, angka dan tanda baca.Melalui rancang bangun running text ini diharapkan jarak jangkauan menjadi lebih luas antara running text dan penggunanya, proses perubahan teks nya bisa dilakukan sewaktu ? waktu dan proses pengubahan data running teks menjadi lebih mudah. Running Text yang digunakan type P10 ukuran 16cm x 32cm.Output tampilan berupa huruf atau angka yang terus berjalan sesuai pesan yang dikirim melalui SMS.Kata kunci: Running Text, Arduino Uno, SIM800L, Modul P10 16 x 32[En]Nowadays, running text is the most widely used information media in the form of news and advertisements that are packed with a unique and interesting appearance. Writing text currently mostly relies on computer units or remote controls that have limitations in terms of distance and inefficiency. In this design, Arduino Uno is used as a liaison device that already in at the program. so the user or operator can use running text as a medium of information by using communication via SMS (short message service) from mobile phone. The message received by GSM module (global system for mobile communications) Sim800L on the running text, then is forwarded to Arduino Uno microcontroller to be displayed on the display running text. Display that can be letters, numbers and punctuation marks. Through the design of the running text is expected to be wider range of distance between running text and its users, the process of text changes becomes easier for anytime. Running Text used type P10 size 16cm x 32cm. Output display in the form of letters or numbers are running according to messages via SMS.

Streetlight Monitoring System for Energy Saving Based on GSM Network

2011 ◽  
Vol 135-136 ◽  
pp. 924-929 ◽  
Author(s):  
Yan Ming Pei ◽  
Yun Hong Liu
Keyword(s):  
Monitoring System ◽  
Mobile Communications ◽  
Short Message ◽  
Communications Technology ◽  
Global System ◽  
Monitoring Centre ◽  
Turn On ◽  
Control Centre ◽  
Gsm Network ◽  
Maintenance Personnel

This streetlight monitoring system is aimed at preventing unnecessary energy wastage by applying the GSM (Global System for Mobile Communications) technology. This system consists of two parts: the monitoring centre and the terminal nodes. The Siemens TC35 GSM module is used to send and receive short messages and it is installed in the monitoring centre and each streetlight. ATmega168 is used to determine whether or not it is necessary for the streetlights to be turned on, and then it executes commands from the control centre. When the sky is bright enough for drivers, the streetlights will automatically turn off. Also, if some streetlights are broken down, the TC35 GSM module will send an alarm short message to the monitoring centre and maintenance personnel will repair the lights as soon as possible. Thus, maintenance personnel will no longer have to make time-consuming visits to check up on the function status of every streetlight. All information is presented in the monitoring computer which is programmed in LabVIEW. The workman can easily turn on or off any streetlight by clicking on the screen.

scholarly journals A Novel Way to Automatically Plan Cellular Networks Supported by Linear Programming and Cloud Computing

2020 ◽  
Vol 10 (9) ◽  
pp. 3072 ◽  
Author(s):  
André Godinho ◽  
Daniel Fernandes ◽  
Gabriela Soares ◽  
Paulo Pina ◽  
Pedro Sebastião ◽  
...  
Keyword(s):  
Linear Programming ◽  
Mobile Networks ◽  
Mobile Communications ◽  
Planning Optimization ◽  
Gsm Network ◽  
Network Quality ◽  
Communications Protocol ◽  
Professional Tool ◽  
Cloud Technologies

With the increasing number of mobile subscribers worldwide, there is a need for fast and reliable algorithms for planning/optimization of mobile networks, especially because, in order to maintain a network’s quality of service, an operator might need to deploy more equipment. This paper presents a quick and reliable way to automatically plan a set of frequencies in a cellular network, using both cloud technologies and linear programming. We evaluate our pattern in a realistic scenario of a Global System for Mobile communications protocol (GSM) network and compare the results to another already implemented commercial tool. Results show that even though network quality was similar, our algorithm was twelve times faster and used four times less memory. It was also able to frequency plan seventy cells simultaneously in less than three minutes. This mechanism was successfully integrated in the professional tool Metric, and is currently being used for cellular planning. Its extension for application to 3/4/5G networks is under study.

Evolution of GSM Network Technology

2011 ◽  
pp. 290-294 ◽  
Author(s):  
Phillip Olla
Keyword(s):  
Mobile Phones ◽  
Mobile Communications ◽  
Economies Of Scale ◽  
Network Technology ◽  
Communication Services ◽  
Global System ◽  
Technology Standard ◽  
Short Period ◽  
Gsm Network ◽  
Fixed Line

The explosive growth of Global System for Mobile (GSM) Communication services over the last two decades has changed mobile communications from a niche market to a fundamental constituent of the global telecommunication markets. GSM is a digital wireless technology standard based on the notion that users want to communicate wirelessly without limitations created by network or national borders. In a short period of time, GSM has become a global phenomenon. The explanation for its success is the cooperation and coordination of technical and operational evolution that has created a virtuous circle of growth built on three principles: interoperability based on open platforms, roaming, and economies of scale (GSM Association, 2004a). GSM standards are now adopted by more than 200 countries and territories. It has become the main global standard for mobile communications; 80% of all new mobile customers are on GSM networks. GSM has motivated wireless adoption to the extent that mobile phones now globally outnumber fixed-line telephones. In February 2004, more than 1 billion people, almost one in six of the world’s population, were using GSM mobile phones.

Ringtone

2017 ◽  
Author(s):  
Yves Doz ◽  
Keeley Wilson
Keyword(s):  
Mobile Phone ◽  
Mobile Communications ◽  
Research Agenda ◽  
Black Box ◽  
Senior Managers ◽  
The World ◽  
Things Fall Apart ◽  
The Doors

In less than three decades, Nokia emerged from Finland to lead the mobile phone revolution. It grew to have one of the most recognizable and valuable brands in the world and then fell into decline, leading to the sale of its mobile phone business to Microsoft. This book explores and analyzes that journey and distills observations and lessons for anyone keen to understand what drove Nokia’s amazing success and sudden downfall. It is tempting to lay the blame for Nokia’s demise at the doors of Apple, Google, and Samsung, but this would be to ignore one very important fact: Nokia had begun to collapse from within well before any of these companies entered the mobile communications market, and this makes Nokia’s story all the more interesting. Observing from the position of privileged outsiders (with access to Nokia’s senior managers over the last twenty years and a more recent, concerted research agenda), this book describes and analyzes the various stages in Nokia’s journey. This is an inside story: one of leaders making strategic and organizational decisions, of their behavior and interactions, and of how they succeeded and failed to inspire and engage their employees. Perhaps most intriguingly, it is a story that opens the proverbial “black box” of why and how things actually happen at the top of organizations. Why did things fall apart? To what extent were avoidable mistakes made? Did the world around Nokia change too fast for it to adapt? Did Nokia’s success contain the seeds of its failure?

scholarly journals O15 Using a smartphone app to characterise and quantify skin colour changes in Raynaud's attacks

Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_1) ◽  
Author(s):  
Graham Dinsdale ◽  
Joanne Manning ◽  
Ariane Herrick ◽  
Mark Dickinson ◽  
Christopher Taylor
Keyword(s):  
Mobile Phone ◽  
Strong Association ◽  
Colour Change ◽  
Objective Measure ◽  
Skin Colour ◽  
Smartphone App ◽  
Limiting Factor ◽  
Bhattacharyya Distance ◽  
Automated Method ◽  
The Mean

Abstract Background/Aims  The lack of objective outcome measures for Raynaud's phenomenon (RP) has been a major limiting factor in development of effective treatments. At present, the Raynaud's Condition Score (RCS) is the only validated outcome measure, and is highly subjective. Mobile phone technology could provide a way forward. We have developed a smartphone app for RP monitoring that guides the patient through the process of capturing images of their hands during RP episodes, as well as capturing other data through post-attack and daily questionnaires. One of the objectives of our research programme (reported here) was to compare digital image (photographic) parameters to the RCS. Methods  40 patients with RP (8 with primary RP, 32 with RP secondary to systemic sclerosis) were recruited (40 female, median age (range): 57 years (25-74), median (range) duration of RP symptoms: 17 (0-53) years). Patients were given a smartphone handset with a pre-installed Raynaud’s Monitoring app and were trained on how to use it/take usable photographs. They were then asked to take photographs of RP attacks over a 14 day period and also to record the RCS for each episode. The app specifically prompts the patient to take a picture of their hand every minute during an attack, until confirmation is given that the attack is complete. At a 2nd visit, the handsets, images, and data were collected for analysis. The mean colour change during each RP attack was quantified (semi-automated method) by the Bhattacharyya distance (BD) in colour space between a region of interest (e.g. a section of a digit) and a control region (dorsal hand). BD was then compared to the RCS using ANOVA, after controlling for patient variability in the range of RCS values used by each patient. Results  A total of 3,030 images were collected, describing 229 RP attacks. The median RCS reported was 6 (inter-quartile range [IQR]: 4), while the median for BD was 5.6 (IQR 3.2). ANOVA showed that measured values of the mean image BD were significantly different when different values of RCS were recorded by the patient (p < 0.001), i.e. attacks where patients selected different values of RCS had significantly different values of BD. Across all attacks/patients the F-value from ANOVA for RCS was 76.2, suggesting that the variation in BD for different values of RCS is much greater than the variation in BD for any one value of RCS. Conclusion  Patients successfully used a smartphone app to collect photographs and data during episodes of RP. A strong association was found between skin colour change (via BD) and the gold-standard RCS. Mobile phone-documented colour change therefore has potential as an objective measure of RP. Further validation work is now required, as well as studies examining sensitivity to change. Disclosure  G. Dinsdale: None. J. Manning: None. A. Herrick: None. M. Dickinson: None. C. Taylor: None.

Sign in / Sign up

Export Citation Format

Share Document