Results 151 to 160 of about 441,092 (345)

Quantum Dots and Perovskites‐Based Physically Unclonable Functions for Binary and Ternary Keys via Optical‐to‐Electrical Conversion

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates optoelectronic PUFs that improve on traditional optical and electrical PUFs. The absorber materials are randomly coated through spray coating, ligand exchange, and dynamic spin coating. Incident light generates wavelength‐dependent binary multikey and enhances security ternary keys, approaching near‐ideal inter‐ and intra ...
Hanseok Seo   +6 more
wiley   +1 more source

Has the U.S. Finance Industry Become Less Efficient? [PDF]

open access: yes, 2011
I use the neoclassical growth model to study financial intermediation in the U.S. over the past 140 years. I measure the cost of intermediation on the one hand, and the production of assets and liquidity services on the other.
Philippon, Thomas
core  

Ultrafast Transient Absorption Studies of the Dynamics of Free and Coulombically Trapped Polarons in Doped Conjugated Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Transient absorption measurements of doped conjugated polymer films show that small dopant ions create both free and Coulomb‐trapped polarons regardless of polymer morphology, but large dodecaborane‐based dopant ions create only free polarons even though the large ions cause the films to be more disordered.
Eric C. Wu   +10 more
wiley   +1 more source

Rethinking Regulation beyond the Normative Threshold: Mechanisms of Control and Access to the Central Market of Kinshasa

open access: yesAfrica Spectrum
The article explores regulation practices governing access to the central market of Kinshasa. It argues that, contrary to conventional ideas, urban trading places do not escape state regulation, nor are they outside the realm of legitimacy.
Héritier Mesa
doaj   +1 more source

Modeling the economic performance of small ruminant pastoralist flocks and financial impact of changes in reproductive performance and mortalities in Kajiado county, Kenya

open access: yesFrontiers in Sustainable Food Systems
This study investigated the economic performance of pastoralist small ruminant flocks in Kajiado county, Kenya, and the financial impact of mortalities and changes in performance indicators.
Jean-Christophe Arnold   +4 more
doaj   +1 more source

Ternary Synergy in Layered Double Hydroxides for Efficient and Stable Nitrate Reduction

open access: yesAdvanced Functional Materials, EarlyView.
Ternary CuZnFe LDH enables efficient electrocatalytic nitrate‐to‐ammonia conversion via controlled in situ reconstruction: zinc leaching creates porous active sites, copper reduced to metallic copper, while iron oxide keeps stable. Synergistic Cu‐Fe redox coupling drives tandem catalysis (nitrate→nitrite→NH3), achieving 95% Faraday efficiency and ...
Jiaqian Kang   +9 more
wiley   +1 more source

Sustainable rural development with emphasis on agriculture and food security within the climate change setting : SARD-climate final report [PDF]

open access: yes, 2009
Sustainable Agricultural and Rural Development (SARD) is considered an essential step toward achieving the first Millenium Development Goal (MDG) of eradicating extreme hunger and poverty. In order to achieve this important goal, first it is important to
Bäckman, Stefan   +3 more
core  

Reconfigurable Nucleic Acid Nanoparticles with Therapeutic RNAi Responses to Intracellular Disease Markers

open access: yesAdvanced Functional Materials, EarlyView.
Many known diseases arise from dysregulated gene expression, and differentially expressed genes can serve as biomarkers to distinguish diseased cells from healthy tissues. In this study, reconfigurable nucleic acid nanoparticles (recNANPs) are introduced that can detect overexpressed cancer biomarkers and subsequently release RNAi inducers to silence ...
Yelixza I. Avila   +7 more
wiley   +1 more source

Stretching‐Orientation Reinforced Double Network Solvent‐Free Eutectic Gels for Ultrarobust, Flexible Human‐Machine Interaction Devices

open access: yesAdvanced Functional Materials, EarlyView.
This work develops an ultrarobust, flexible, and solvent‐free eutectic gel featuring stretch‐induced orientation. Overcoming hydrogel limitations, the gel achieves record toughness (133.86 MJ m−3) while integrating strain/temperature/capacitive sensing.
Tingzhong Li   +5 more
wiley   +1 more source

Artificial Intelligence‐Driven Development in Rechargeable Battery Materials: Progress, Challenges, and Future Perspectives

open access: yesAdvanced Functional Materials, EarlyView.
AI is transforming the research paradigm of battery materials and reshaping the entire landscape of battery technology. This comprehensive review summarizes the cutting‐edge applications of AI in the advancement of battery materials, underscores the critical challenges faced in harnessing the full potential of AI, and proposes strategic guidance for ...
Qingyun Hu   +5 more
wiley   +1 more source

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