Results 11 to 20 of about 114,205 (258)

Smartphone-based activity measurements in patients with newly diagnosed bipolar disorder, unaffected relatives and control individuals

open access: yesInternational Journal of Bipolar Disorders, 2020
Background In DSM-5 activity is a core criterion for diagnosing hypomania and mania. However, there are no guidelines for quantifying changes in activity.
Sharleny Stanislaus   +7 more
doaj   +1 more source

A 3‐D hand gesture signature based biometric authentication system for smartphones [PDF]

open access: yesSecurity and Communication Networks, 2015
AbstractThe authentication mechanism being equipped in most of the smartphones, by detecting a 4‐digit password or a simple pattern, are easy to be hacked and impersonated. In this paper, a 3‐D hand gesture signature (HGS) based biometric authentication system is designed and implemented by taking advantage of the on‐phone accelerometer to capture the ...
Ziwen Sun   +3 more
openaire   +1 more source

A brief measure of problematic smartphone use among high school students: Psychometric assessment using item response theory

open access: yesComputers in Human Behavior Reports, 2021
The purpose of this study was to use item response theory to assess a brief measure of problematic smartphone use among high school students, using the 2017-18 California Student Tobacco Survey (CSTS) collected from 119,981 students who own a smartphone ...
Scott I. Donaldson   +2 more
doaj   +1 more source

Android Kötücül Yazılım Tespit Sistemleri İncelemesi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2017
Akıllı telefonların hayatımıza girmesiyle birlikte akıllı telefonları kullanan kullanıcı sayısı her geçen gün artarak devam etmektedir. Akıllı telefonların fazla talep görmesindeki neden, insanların bir cihazla istedikleri işleri tek dokunuşla kolaylıkla
Ömer KİRAZ, İbrahim Alper DOĞRU
doaj   +4 more sources

Penentuan Aspek yang Berpengaruh Terhadap Produk Smartphone Berdasarkan Ulasan Berbasis Tekstual

open access: yesJuTISI (Jurnal Teknik Informatika dan Sistem Informasi), 2021
With the rapid development of new technologies in smartphones, understanding market trends has become an increasingly difficult task. In these circumstances, online product reviews that can reflect consumer sentiment about the product has been a concern ...
Hetthroh Sagala, Hapnes Toba
doaj   +1 more source

STUDY CASE CONTROL PENGGUNAAN SMARTPHONE BERDASARKAN KARAKTERISTIK ANAK USIA 3-6 TAHUN DI KECAMATAN PEUSANGAN KABUPATEN BIREUEN

open access: yesAn-Nadaa: Jurnal Kesehatan Masyarakat, 2020
Data Keminfo yang mengelompokkan komposisi usia, persentase pengguna smartphone yang termasuk kategori usia anak-anak  di Indonesia cukup tinggi, yaitu sekitar dari 36 % anak usia 3-10 tahun diproyeksikan menggunakan ponsel pintar pada tahun 2018 ...
Agustina Agustina, Hermansyah Hermansyah
doaj   +1 more source

Temporal Stability of Smartphone Use Data: Determining Fundamental Time Unit and Independent Cycle

open access: yesJMIR mHealth and uHealth, 2019
BackgroundAssessing human behaviors via smartphone for monitoring the pattern of daily behaviors has become a crucial issue in this century. Thus, a more accurate and structured methodology is needed for smartphone use research.
Pan, Yuan-Chien   +4 more
doaj   +1 more source

SEMA3: A Free Smartphone Platform for Daily Life Surveys

open access: yesBehavior Research Methods, 2023
Traditionally, behavioral, social, and health science researchers relied on global/retrospective survey methods administered cross-sectionally (i.e., on a single occasion) or longitudinally (i.e., on several occasions separated by weeks, months, or years).
Sarah T. O’Brien   +10 more
openaire   +5 more sources

Smartphone-based spectroscopy as a tool to estimate soil attributes for the citizen science concept

open access: yesSmart Agricultural Technology, 2023
This study explores the potential of using smartphone cameras to estimate soil attributes as a field-based alternative to traditional sampling and lab analyses that are time-consuming, expensive, and non-friendly to the environment.
Sharad Kumar Gupta   +5 more
doaj   +1 more source

A low-cost 3-D printed smartphone add-on spectrometer for diagnosis of crop diseases in field [PDF]

open access: yesProceedings of the 3rd ACM SIGCAS Conference on Computing and Sustainable Societies, 2020
We present our initial proof of concept study towards the development of a low-cost 3-D printed smartphone add-on spectrometer. The study aimed at developing a cheap technology (less than 5 USD) to be used for detection of crop diseases in the field using spectrometry.
Godliver Owomugisha   +5 more
openaire   +2 more sources

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