Results 151 to 160 of about 330,051 (318)

Unlocking Exceptional Strengthening in Aluminum Alloys via Interstitial Cottrell Atmosphere Formation

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic unloading‐aging‐reloading micro‐tensile tests under various aging durations and temperatures, combined with comprehensive microstructural characterization reveal that the yield point phenomenon in Aluminum‐Carbon (Al‐C) thin films originates from Cottrell atmosphere formation.
Zion Lee   +10 more
wiley   +1 more source

Unraveling MXene Oxidation Mechanisms Under Realistic Gas Environments by In Situ Gas‐Cell TEM

open access: yesAdvanced Functional Materials, EarlyView.
Real‐time visualization of MXene degradation reveals a fundamental oxidation mechanism under oxygen and moisture environments. Using in situ gas‐cell electron microscopy, this study demonstrates that oxygen degradation drives a thermodynamically controlled high‐temperature transformation into mixed rutile/anatase phases.
Yongfa Cheng   +8 more
wiley   +1 more source

Democracy index 2015: Democracy in an age of anxiety

open access: yes, 2016
"The Economist Intelligence Unit’s Democracy Index provides a snapshot of the state of democracy worldwide for 165 independent states and two territories (micro-states are excluded).
Economist Intelligence Unit
core  

Exploring irisin levels in patients with endometrial atypical hyperplasia and carcinoma: a comparative analysis

open access: yesBMC Cancer
Background Endometrial atypical hyperplasia (EAH) is recognized as the precursor to type I endometrial cancer. Endometrial cancer (EC), strongly associated with disorders in glucose metabolism such as obesity and insulin resistance, is believed to be ...
Tevfik Berk Bildacı   +4 more
doaj   +1 more source

Water‐Compatible SuFEx‐Active Diazonium Linchpin Platform for Rapid Modular Diversification and On‐DNA Functionalization

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur fluoride exchange (SuFEx) is a powerful click platform, yet water‐compatible multifunctional linchpins remain elusive. Here, we report decagram‐scalable diazonium linchpins that enable rapid Pd‐catalyzed diversification and direct, catalyst‐free on‐DNA ligation in aqueous media.
Seok Ju Hong   +5 more
wiley   +1 more source

Democracy index 2012: Democracy is at a standstill

open access: yes, 2013
"The Economist Intelligence Unit’s Democracy Index provides a snapshot of the state of democracy worldwide for 165 independent states and two territories (micro-states are excluded).
Economist Intelligence Unit
core  

Comparing nutritional status, quality of life and physical fitness: aging in place versus nursing home residents

open access: yesBMC Geriatrics
Background Quality of life (QoL) is a key indicator of well-being in older adults (OAs) and several factors, including nutrition, physical fitness, and dwelling place, can influence QoL.
Seda Çiftçi, Mürvet Erdem
doaj   +1 more source

Electro‐Steric Ion Confinement in Polyelectrolyte Networks for Robust Nonvolatile Artificial Synapse

open access: yesAdvanced Functional Materials, EarlyView.
Polyelectrolyte stoichiometry governs ion transport and retention in electrolyte‐gated synaptic transistors. A PSS‐rich network creates electro‐steric ion confinement that suppresses ion back‐diffusion and stabilizes channel doping, enabling robust nonvolatile synaptic memory, linear weight updates, and low‐energy operation.
Donghwa Lee   +9 more
wiley   +1 more source

Unified Analytical Framework for Understanding the Operational Stability of Blue Phosphorescent OLEDs: Quantitative Insights Into Exciton Recycling and Bimolecular Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Blue phosphorescent OLEDs remain limited by poor operational stability. Here, a unified analytical framework integrating transient photoluminescence and magneto‐electroluminescence is developed to correlate intrinsic material photophysics with electrically driven degradation.
Hakjun Lee, Bum June Park, Taekyung Kim
wiley   +1 more source

Democracy & Society, Volume 20: Democracy and Equality

open access: yes, 2023
Chaudhuri, Natalie   +9 more
core  

Home - About - Disclaimer - Privacy