The case study presented in this article consists in a mobile aplication created on the

basis of the Cohen questionnaire meant to detect stress level. The study is a novelty because the

mobile app can be used on an undefined number of Android terminals. The test can be performed

several times by the same person, and the data can be used later for various reports due to the

authentication and in-app account creation feature.To design the application were used the follow

instruments: PhoneGap, HTML, CSS, JavaScript, PHP, server web, MYSQL and Adobe

photoshop.The application can be used in any medium that requires rapid detection of stress on

the Cohen test of a large number of respondents. Data obtained through the application can be

used to carry out research studies in universities, psychology offices, recruitment companies, and

so on

A. Dimitrescu

C. Babiş

E. Niculae

G. Iacobescu

L.C. Dascalu

O. Chivu

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Fiabilitate si Durabilitate - Fiability & Durability   No 2/ 2018  Editura “Academica Brâncuşi” , Târgu Jiu, ISSN 1844 – 640X   114 DESIGN AND DEVELOPMENT OF A MOBILE APPLICATION ANDROID FOR THE MEASUREMENT OF STRESS LEVEL L.C. Dascalu1, O. Chivu1, C. Babiş1, G. Iacobescu1, A. Dimitrescu2and E. Niculae2 1Welding and Material Technology Department, Politehnica University of Bucharest, Romania 2Theory of Mechanism and Robots Department, Politehnica Universityof Bucharest,Romania E-mail: dascalu_loredana_cristina@yahoo.com Abstract. The case study presented in this article consists in a mobile aplication created on the basis of the Cohen questionnaire meant to detect stress level. The study is a novelty because the mobile app can be used on an undefined number of Android terminals. The test can be performed several times by the same person, and the data can be used later for various reports due to the authentication and in-app account creation feature.To design the application were used the follow instruments: PhoneGap, HTML, CSS, JavaScript, PHP, server web, MYSQL and Adobe photoshop.The application can be used in any medium that requires rapid detection of stress on the Cohen test of a large number of respondents. Data obtained through the application can be used to carry out research studies in universities, psychology offices, recruitment companies, and so on.  Keywords:stress, Android, mobile application, Cohen, HTML   Introduction The purpose of this paper is to detect the stress level using Cohen Williamson Questionnaire [1] by mobile device. The application impuls users to a questionnaire of 10 questions, and depending on responses, the respondent's level of stress and some recommendations are released to reduce stress.This app provides to the  participants a quick and easy way to answer of questions without the need for physical presence in a room (if we are talking about universities) or at the headquarters of the survey. For psychology clinics, the application could be used by psychologists to obtain preliminary data about new patients or to obtain new data regarding the condition of existing patients. The instruments that are used to design the mobile application are presented below: PhoneGap - the low operating costs of this framework, the ease of use and the extensive capabilities of the framework have led to the choice of this platform for implementing the application in this research work. PhoneGap[2] it is a hybrid application which are using technologies such as Cascading Style Sheets (CSS) [3], JavaScript [4] and Hyper Text Markup Language (HTML) [5] for building cross-platform. The application supports the following mobile device operating system platforms: Google Android[6], Apple Ios [7], Microsoft Windows Phone 7 [8] and so one. HTML – in this project we used HTML to create the general structure of all the pages (screens) that shows the questions, the results of the questionnaire, but also the part of the account creation and login in the application. HTML is a format used to display a web page. The documents  are plain text files with special "tags" or codes that a web browser uses to interpret and display on your computer screen. The most important tags in HTML are tags that define headings, paragraphs and line breaks, such us: <html> Defines an HTML document Fiabilitate si Durabilitate - Fiability & Durability   No 2/ 2018  Editura “Academica Brâncuşi” , Târgu Jiu, ISSN 1844 – 640X   115 <body> Defines the document's body <h1> to <h6> Defines header 1 to header 6 <p> Defines a paragraph <br> Inserts a single line break <hr> Defines a horizontal rule  <p class="user"></p> <div id="screen-start"> Fiabilitate si Durabilitate - Fiability & Durability   No 2/ 2018  Editura “Academica Brâncuşi” , Târgu Jiu, ISSN 1844 – 640X   120 <h1>Questionnairer Cohen </h1> <h3>Measurement of stress level</h3> <button id="registration-start" class="registration-start" >Inregistrare</button> <button id="log-start" class="log-start" >Autentificare</button> </div> <!—endmainscreen display -->  The home screen (Fig.8) of the application for Cohen questionnaire looks like this:   Figure.8. “Cohen” mobile app home screen   The Cohen test can easily be replacedbyanother test after aninitialupdateoftheapplicationforallrespondents. Conclusions The conclusions of the case study are that the mobile aplication it is necesary for research in domains such us: engineering, management, psihology, occupational health, stress management and so one. Implementing this mobile application for Android terminals we have the advantage to Fiabilitate si Durabilitate - Fiability & Durability   No 2/ 2018  Editura “Academica Brâncuşi” , Târgu Jiu, ISSN 1844 – 640X   121 reach many respondents if it is necessary for various reports, scientific research or, even the possibility to be used by psychology and trainers’ specialists to determine the stress level by completing the Cohen test. References Khalili R, Sirati Nir M, Ebadi A, Tavallai A, Habibi M, Validity and reliability of the Cohen 10-item Perceived Stress Scale in patients with chronic headache: Persian version Asian J Psychiatr 2017 Apr;26:136-140 John M.W,PhoneGapEssentials.Building Cross-Platform Mobile Apps. ISBN 0-321-814 29-0. June 2012, Pearson Education. Inc, UnitedStates ***,https://www.tutorialspoint.com/css/css_tutorial.pdf ***, https://www.tutorialspoint.com/javascript/javascript_tutorial.pdf ***, http://www.austincc.edu/hr/profdev/eworkshops/docs/HTML_Basics.pdf ***, http://developer.android.com ***, http://developer.apple.com ***,http://create.msdn.com/en-us/home/getting_started Matt D, Beginning PHP 5.3, Published by Wiley Publishing Inc, ISBN 978-0-470-41396-8, 2010, Indiana, USA *** https://dev.mysql.com/doc/refman/8.0/en/what-is-mysql.html Dascălu L C, Research of the influence of organisational stress levels over the economiv efficciency in integrated management systems Doctoral thesisSeptember 2015 Bucharest Romania

DESIGN AND DEVELOPMENT OF A MOBILE APPLICATION ANDROID FOR THE MEASUREMENT OF STRESS LEVEL

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DESIGN AND DEVELOPMENT OF A MOBILE APPLICATION ANDROID FOR THE MEASUREMENT OF STRESS LEVEL

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