Results 131 to 140 of about 286,662 (293)

SMARTPHONE ADDICTION: PREVALENCE AND ASSOCIATED FACTORS AMONG UNDERGRADUATE STUDENTS OF A MEDICAL COLLEGE IN TAMIL NADU, INDIA – A CROSS-SECTIONAL STUDY

open access: yesJournal of Community Mental Health and Public Policy
Background: Smartphone proliferation has raised concerns over smartphone addiction among medical students under academic pressure. Excessive use has been linked to detrimental physical and psychological effects, impacting academic performance and well ...
Jeevapriya Ravi, Devika Devendran
doaj   +1 more source

Cavity‐Enhanced Eye‐Readable Detection of 0.1% H2 via Active Modulation of Charge‐Transfer Plasmons

open access: yesAdvanced Science, EarlyView.
A cavity‐structured nanoparticle sensor is developed for highly sensitive, eye‐readable hydrogen detection. Its excellent colorimetric response arises from a hydrogen‐induced charge‐transfer mechanism: reduction of the dielectric oxide shell in H2 triggers a transition from the plasmonic gap mode to the charge‐transfer plasmon mode.
Xuemin Zhang   +9 more
wiley   +1 more source

Smartphone use and cognitive performance in middle-aged and older adults: a cross-sectional study in China

open access: yesBMC Public Health
Background Although increasing use of smartphones has been observed among middle-aged and older adults, its relationship with cognitive performance remains understudied in this population.
Dongrui Li   +8 more
doaj   +1 more source

THE PERCEIVED ROLE OF PARENTING ON PROBLEMATIC SMARTPHONE USE DURING ADOLESCENCE: A CROSS-SECTIONAL STUDY [PDF]

open access: yes
openL’elaborato esaminerà il ruolo percepito del parenting sull’uso problematico dello smartphone durante l’adolescenza. Verranno quindi indagati i costrutti teorici che influenzano questo processo.
CESCUTTI, LISA
core  

Isosorbide‐Based Optically Clear Adhesives With Ultrahigh Transparency and Rapid Strain Recovery for Flexible Displays

open access: yesAdvanced Science, EarlyView.
Biomass‐derived isosorbide‐based PUDA crosslinker enables optically clear adhesives with ultrahigh transparency (99.8%), rapid strain recovery, and stable adhesion for flexible displays. ABSTRACT Flexible and foldable displays require optically clear adhesives (OCAs) that combine ultrahigh optical transparency with mechanical resilience under repeated ...
Yoonji Choi   +8 more
wiley   +1 more source

A Magnetic‐Driven Self‐Rotation‐Stabilized Miniature Swimming Robot

open access: yesAdvanced Science, EarlyView.
Inspired by the stable rotational descent of seeds in nature, this study designs a magnetic‐driven self‐rotation‐stabilized miniature swimming robot (MSMSR). Based on a resonance‐driven strategy, the robot exhibits high swimming performance, offering enhanced directional swimming and improved resistance to water flow disturbances compared to existing ...
Fujun Wang   +4 more
wiley   +1 more source

Smartphone Sensor vs Photogrammetry for Gait Analysis

open access: yes, 2019
Research has shown a remarkable growth in the use of smartphone and apps in the human movements. Accelerometer sensor within smartphone can be used to detect human movements and gait characteristics.
Albert K. Chong   +5 more
core   +1 more source

Electronics‐Free Visual Monitoring of Dry Eye Disease‐Related Tear Biomarkers Using Smart Scleral Lenses

open access: yesAdvanced Science, EarlyView.
An electronics‐free smart scleral lens passively monitors dry eye disease‐related tear biomarkers through colorimetric sensing of chloride, pH, and ocular surface temperature. Smartphone‐assisted image analysis enables quantitative interpretation, providing a simple, non‐invasive strategy for ocular health monitoring without integrated electronics ...
Ziheng Wang   +15 more
wiley   +1 more source

Objective vs. perceived maternal smartphone use and observed mother-infant interaction quality

open access: yesFrontiers in Developmental Psychology
IntroductionPrior research links maternal smartphone use to reduced sensitivity and responsiveness to infant cues, but emerging evidence suggests that mothers' perceptions of their smartphone use - such as feelings of empowerment or distress - may also ...
Alison K. Ventura   +9 more
doaj   +1 more source

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