Results 171 to 180 of about 828,009 (393)

DiffUser: Differentiated user access control on smartphones [PDF]

open access: green, 2009
Xudong Ni   +4 more
openalex   +1 more source

Encouraging Privacy-Aware Smartphone App Installation: Finding out what the Technically-Adept Do [PDF]

open access: yes, 2016
Smartphone apps can harvest very personal details from the phone with ease. This is a particular privacy concern. Unthinking installation of untrustworthy apps constitutes risky behaviour.
El Hanafi, Michael   +5 more
core   +1 more source

Breaking the Selectivity Barrier of Single‐Atom Nanozymes Through Out‐of‐Plane Ligand Coordination

open access: yesAdvanced Materials, EarlyView.
Here, Ru SAzyme with out‐of‐plane chlorine ligands is reported as a monofunctional, high‐performance peroxidase‐like nanozyme. Incorporating out‐of‐plane ligand coordination emulates enzyme selectivity and regulates reaction pathways for an identical substrate.
Seonhye Park   +8 more
wiley   +1 more source

Bringing Attomolar Detection to the Point‐of‐Care with Nanopatterned DNA Origami Nanoantennas

open access: yesAdvanced Materials, EarlyView.
Single DNA molecules are captured within the hotspots of DNA origami NanoAntennas arranged on a chip surface. Fluorescence is amplified, enabling direct detection on a point‐of‐care‐compatible imaging setup (visualized as bright signals against a dark background).
Renukka Yaadav   +13 more
wiley   +1 more source

SMARTPHONE USAGE AS A RISK FACTOR OF MYOPIA AMONG ELEMENTARY SCHOOL STUDENTS IN KEDIRI

open access: yesJurnal Berkala Epidemiologi
Background: Myopia is the inability to view distant objects. Most cases of myopia occur in school-age children. Working and studying from home due to the COVID-19 epidemic exacerbates myopia concerns. The Kediri City Health Office reports that school-age
Ladinna Amanda Sari   +3 more
doaj   +1 more source

A High‐Capacity Semiconductor Organic Polymer for Stable Aqueous Ammonium‐Ion Storage

open access: yesAdvanced Materials, EarlyView.
The dual challenges of solubility and low conductivity in aqueous ammonium ions storage using the tetraamino‐p‐benzoquinone material are addressed through an amidation reaction and the conjugation effect. The delocalization of electrons facilitates rapid charge transport and collection.
Zi‐Hang Huang   +8 more
wiley   +1 more source

Recent Advances in Reactive Microdroplets for Clean Water and Energy

open access: yesAdvanced Materials, EarlyView.
Reactive microdroplets enable precise and sustainable chemistry at small scales. This review explores their role as confined reactors and dynamic interfaces for synthesizing functional materials, fuels, and microdevices. It offers a critical perspective on how droplet‐based platforms can drive next‐generation technologies in clean energy, environmental
Qiuyun Lu   +4 more
wiley   +1 more source

A Year Without a Smartphone [PDF]

open access: yes, 2017
Some say there are moderators and abstainers. One post, call or text with “off” energy, unfortunately, would get me down for days, sometimes more, so for the time being, I abstained. Moderation requires more discipline.
Miller, Maryam
core  

Thermochromic Gires‐Tournois Resonators with Tellurium for Battery Thermal Runaway Warning

open access: yesAdvanced Materials, EarlyView.
A thermochromic Gires‐Tournois (GT) resonator with a thin tellurium layer enables rapid, reversible, and untethered detection of battery surface temperature <80 °C. Exploiting tellurium's refractive index change driven by a thermally induced phase transition between solid and quasi‐liquid states, the GT resonator visualizes heat propagation, providing ...
Hyun Min Kim   +7 more
wiley   +1 more source

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