Results 111 to 120 of about 776,021 (358)

War and endogenous democracy [PDF]

open access: yes, 2008
Many episodes of extension of franchise in the 19th and especially in the 20th century occurred during or in the aftermath of major wars. Motivated by this fact, we offer a theory of political transitions which focuses on the impact of international ...
Ticchi, Davide, Vindigni, Andrea
core  

4D Printing of Magnetically Responsive Shape Memory Polymers: Toward Sustainable Solutions in Soft Robotics, Wearables, and Biomedical Devices

open access: yesAdvanced Science, EarlyView.
Merging 4D printing with magneto‐responsive shape memory polymers opens new avenues for intelligent, reconfigurable systems. This review navigates cutting‐edge fabrication techniques, magnetic fillers, and smart polymer matrices, unveiling their potential in soft robotics, biomedical devices, and wearable tech.
Kiandokht Mirasadi   +7 more
wiley   +1 more source

Oil Price Shocks and Stock Return Predictability [PDF]

open access: yes
Recent research has documented that oil price changes lead the aggregate market in most industrialized countries, and has argued that it represents an anomaly - an underreaction to information that investors can profit from.
Sørensen, Lars Qvigstad
core  

American Grand Strategy in the Mediterranean during World War II (Book Review) by Andrew Buchanan [PDF]

open access: yes, 2018
Review of American Grand Strategy in the Mediterranean during World War II by Andrew ...
Salt, Alexander
core   +1 more source

AI‐Optimized Vanadium Oxide Multilayers for More Than 20‐fold Enhancement in Bolometric Performance

open access: yesAdvanced Science, EarlyView.
Machine‐learning‐optimized WxV1‐xOy multilayer thin films with graded doping achieve a high TCR (7.3 % K−1), reduced hysteresis, and low noise under CMOS‐compatible growth conditions. This approach overcomes the long‐standing trade‐off in microbolometers between linear response and performance, offering a universal bolometric parameter greatly enhanced
Jin‐Hyun Choi   +8 more
wiley   +1 more source

Design and Characterization of DX‐Tile DNA Nanostar‐Based Hydrogels

open access: yesAdvanced Science, EarlyView.
In this study, the authors demonstrated that DNA DX‐tile‐based multi‐arm motifs can be used to assemble pure DNA hydrogels, offering greater design flexibility and enhanced control over their mechanical properties and functionalization capabilities compared to single duplex‐based DNA hydrogels.
Dylan V. Scarton   +13 more
wiley   +1 more source

On the New US Military Strategy in the Arctic

open access: yesАрктика и Север
The article discusses the new US military strategy in the Arctic, announced by the administration of J. Biden in July 2024. It replaced a similar document issued under D. Trump in 2019. The authors raise the question of what has changed in the approaches
Valeriy N. Konyshev   +1 more
doaj   +1 more source

Full spectrum defence: re-thinking the fundamentals of Australian defence strategy [PDF]

open access: yes
This report argues that successive Australian governments have failed to define an effective national defence strategy. Executive summary Australia’s inability to clearly and succinctly define its defence strategy is a perennial failing that will have ...
Alan Dupont
core  

Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion

open access: yesAdvanced Science, EarlyView.
In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi   +6 more
wiley   +1 more source

Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics

open access: yesAdvanced Science, EarlyView.
The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet   +8 more
wiley   +1 more source

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