Results 21 to 30 of about 177,501 (262)

De Rerum Natura: How Do Halide Perovskites Self‐Heal From Damage?

open access: yesAdvanced Materials, EarlyView.
How can lead‐halide‐perovskites self‐heal after damage from light, heat, mechanical strain, or radiation? We show that reversible chemical defects underly performance losses and recovery, highlighting the roles of halide and proton migration, redox‐driven reactions, and acid‐base equilibria.
Davide Raffaele Ceratti   +2 more
wiley   +1 more source

Oxygen Evolution Reaction Catalysts for Acidic‐Media CO2 Electrolyzers

open access: yesAdvanced Materials, EarlyView.
Acidic‐media CO2 electroreduction (CO2R) could decarbonize chemical production, despite relying on rare‐earth elements for anodic oxygen evolution reaction (OER). Transferring the learnings from mature sister technologies (water electrolysis) could accelerate technological development.
Mingcheng Huang, Adnan Ozden
wiley   +1 more source

Comparing the Effects of E-Learning and Conventional Training on Learning and Motivation in Continuing Medical Education [PDF]

open access: yesFanāvarī-i āmūzish, 2013
: this study is carried out to investigate the effect of application of computer-assisted concept mapping on high school students’ immediate and long-term geology learning compared to conventional (Paper & pen) method.
H. Mehdizadeh, M. Eslampanah, D. Payab
doaj   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

open access: yesAdvanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik   +7 more
wiley   +1 more source

Divergent Responses of Bacterial Communities to Permafrost Degradation and Their Associations With Carbon Across Vertical Profiles

open access: yesAdvanced Science, EarlyView.
Bacterial α‐diversity decreases, but stochasticity and community stability increase across the 15 m‐depth vertical profiles and along the degraded gradient within the active layer. The abundance and interaction of core taxa mainly control community stability in the active and permafrost layers, respectively.
Shengyun Chen   +13 more
wiley   +1 more source

Current state and sustainable development of mining in Republic of Serbia [PDF]

open access: yesTehnika
The tradition of successful mining is long, while the mineral and raw material potential of the Republic of Serbia is very significant because, on its territory, in addition to the critical ones, there are also a large number of other deposits and ...
Ignjatović Dragan M.   +3 more
doaj   +1 more source

Bioinspired Microreactor for Iodide Adsorption and Photooxidation Recovery

open access: yesAdvanced Science, EarlyView.
A bioinspired micro‐ionic‐reactor based on porous organic polymer (MIR‐POP) integrates rapid iodide capture with in situ photooxidative conversion, achieving record uptake capacity and high uptake efficiencies in simulated mining wastewater and natural brine. This bioinspired microreactor strategy offers a new avenue for sustainable iodine recovery and
Xuewen Cao   +8 more
wiley   +1 more source

2008: Retrospectiva dos 50 Anos da Geologia na UFRJ e Olhar Crítico para o Futuro. [PDF]

open access: yesAnuário do Instituto de Geociências, 2008
The history of 50 years of the Geology undergraduate course of Rio de Janeiro Federal University andthe 40 years of its Graduate Geology Program is part of the scientific knowledge of the Brazilian Geologyduring this period.
Emílio Velloso Barroso   +3 more
doaj  

DC‐magnetometry Analytical Tool Driven by Spin Ordering Phenomena for Sensing Chemical Interactions at the Surface of Nanomaterials

open access: yesAdvanced Science, EarlyView.
The adsorption of AsV on akaganeite nanorods was found to provide a magnetic signature. A change in the surface spin order gave rise to a second peak in the zero‐field cooled curve. AsIII adsorption does not provide any change in the magnetic behavior of the sorbent.
Marco Sanna Angotzi   +11 more
wiley   +1 more source

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