Results 31 to 40 of about 2,704,441 (286)

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

open access: yesAdvanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono   +6 more
wiley   +1 more source

Political Parties and Popular Representation in Myanmar’s Democratisation Process

open access: yesJournal of Current Southeast Asian Affairs, 2015
The article examines the role of political parties in Myanmar’s democratisation process. We argue that the substance of democratisation depends on popular representation through political parties but question their capacity to provide such ...
Kristian Stokke   +2 more
doaj  

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

open access: yesAdvanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles   +16 more
wiley   +1 more source

Censoring the Press: A Barometer of Government Tolerance for Anti-regime Dissent under Authoritarian Rule

open access: yesJournal of Politics in Latin America, 2016
This paper proposes that dissident leaders aiming to build mass opposition movements follow the mainstream press to help them gauge government tolerance for anti-government mass actions in repressive authoritarian regimes. Under conditions of censorship,
Elizabeth Ann Stein
doaj  

Growth rates for subclasses of Av(321) [PDF]

open access: yes, 2009
Pattern classes which avoid 321 and other patterns are shown to have the same growth rates as similar (but strictly larger) classes obtained by adding articulation points to any or all of the other patterns.
Albert, M. H.   +5 more
core   +3 more sources

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

open access: yesAdvanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu   +5 more
wiley   +1 more source

Failed Presidencies: Identifying and Explaining a South American Anomaly Presidencias fallidas: identificando y explicando una anomalía sudamericana

open access: yesJournal of Politics in Latin America, 2009
Are presidential democracies inherently unstable and prone to breakdown? Recent work on Latin America suggests that the region has seen the emergence of a new kind of instability, where individual presidents do not manage to stay in office to the end of ...
Kathryn Hochstetler, Margaret E. Edwards
doaj  

Structural and Chemical Engineering of Sub‐Nanochannel Membranes Toward Ion Selectivity

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes recent advances in structural and chemical engineering of sub‐nanochannels for ion selectivity. We first introduce fundamental ion transport mechanisms within sub‐nanochannels, followed by strategies to tune pore size, geometry, and surface functionalities, categorized into charge‐based, ion‐recognition, hydrophilic bonding, and ...
Yuyu Su   +5 more
wiley   +1 more source

Institutional Change in Latin America: External Models and their Unintended Consequences Cambio institucional en América Latina. Modelos externos y sus consequencias involuntarias

open access: yesJournal of Politics in Latin America, 2009
Influential theories claim that institutions shape actor behavior but are sustained by these actors’ behavior. How do scholars escape from this trap of endogeneity? This article highlights a partially exogenous factor: institutional models and blueprints.
Kurt Weyland
doaj  

Dynamic Proton Activity Regulation via Brønsted Bases Enables Durable and High‐Energy‐Density Zn||MnO2 Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Our study demonstrates Brønsted base‐mediated proton transfer for HOAc dissociation regulation in weakly acidic electrolytes, where imidazole achieves optimal dynamic proton equilibrium‐simultaneously stabilizing Zn anodes and enabling efficient Mn2+/MnO2 conversion.
Wenli Xin   +7 more
wiley   +1 more source

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