Results 91 to 100 of about 64,545 (322)

Valence and Site Engineering Enable Efficient Broadband Near‐Infrared Emission at 960 nm in Cr3+‐Activated Forsterite

open access: yesAdvanced Materials, EarlyView.
This study reports a near‐infrared (NIR) luminescent material (Mg2SiO4:1.5%Cr,5%Li) with efficient (EQE = 48%) ultra‐broadband (FWHM ≈ 2413 cm−1 (226 nm)) NIR emission at 960 nm upon blue‐light excitation. This innovation addresses the low efficiency of long‐wavelength (λmax > 900 nm) NIR‐emitting materials due to the radiationless de‐activation and ...
Lei Zhong   +11 more
wiley   +1 more source

Mobile Phone Addiction and Mobile Phone Use in Dangerous Circumstances: Prevalence and Correlates in a Sample of Italian University Students

open access: yesMediterranean Journal of Clinical Psychology, 2021
Background: Beyond unambiguous advantages of mobile phones (MP), growing evidences document its problematic use and association with mental health issues. Unintentional injuries, such as road traffic or pedestrian accidents, result from dangerous use of the MP (DUMP).
Perilli E.   +8 more
openaire   +4 more sources

Mucosa‐Interfacing Capsule for In Situ Sensing the Elasticity of Biological Tissues

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
A fundamental mechanism of palpating soft materials is reported to sense deep tissue elasticity in situ with minimal invasion using the interaction between the robot palpation unit and soft tissues. Both the robot locomotion and elasticity sensing functions are remotely controlled by external magnetic fields, while the sensing data are wirelessly ...
Kiyoung Kim   +10 more
wiley   +1 more source

Addiction-Like Mobile Phone Behavior – Validation and Association With Problem Gambling [PDF]

open access: yesFrontiers in Psychology, 2018
Mobile phone use and its potential addiction has become a point of interest within the research community. The aim of the study was to translate and validate the Test of Mobile Dependence (TMD), and to investigate if there are any associations between mobile phone use and problem gambling.
Andreas Fransson   +3 more
openaire   +3 more sources

Electrical Metamaterial‐Based Interconnects‐Enabled Highly Stretchable Wireless Electrocardiography Circuit

open access: yesAdvanced Materials Technologies, EarlyView.
This article presents a novel strategy for creating highly stretchable wireless circuits using electrical metamaterial‐based interconnects (EMIs). Embedded in soft polymers and filled with liquid metal, EMIs uniquely reduce resistance under strain. A fully integrated ECG circuit demonstrates reliable performance under 100% stretch, offering a highly ...
Anan Zhang   +2 more
wiley   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

The relationship of depression, distress tolerance and difficulty in emotional regulation with addiction to cell-phone use in students of Kashan University [PDF]

open access: yes, 2018
Background: Cell phone plays an essential role in communications throughout the world. This question has been raised whether the over use of the cell-phone could lead to addiction.
Moghbeli Hanzaii, Masumeh   +2 more
core  

Mobile Phone Use,Mobile Phone Addiction and Academic Performance in Primary School Students

open access: yes, 2023
In order to explore the relationship among mobile phone use,mobile phone addiction and academic performance of primary school students, 187 Chinese primary school students were surveyed on mobile phone use, mobile phone addiction and academic performance. The results showed that 38.7% of primary school students had their own mobile phone.
openaire   +2 more sources

Hyperphosphorescent OLEDs: Harnessing the Power of MR‐TADF Terminal Emitters

open access: yesAdvanced Optical Materials, EarlyView.
Hyperphosphorescent organic light‐emitting diodes (HP‐OLEDs) use phosphorescent sensitizers with multiresonant thermally activated delayed fluorescence terminal emitters. HP‐OLEDs show efficient, narrowband electroluminescence and moderate efficiency roll‐off.
Emma V. Puttock   +3 more
wiley   +1 more source

Assessment of mobile phone usage and self-perceived effects among students of a dental college in Chennai. [PDF]

open access: yes, 2020
Mobile phone addiction is a type of technological addiction or non substance addiction. The present study was conducted with the objectives of assessing an existing Mobile Phone Dependence Questionnaire scale among dental students and to assess the ...
BARMA, MANALI DEB   +3 more
core   +1 more source

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