Results 141 to 150 of about 1,118,648 (308)

Соціокультурні особливості російського соціал-демократичного руху і проблема ідентичності російсько-єврейської інтелігенції в Російській імперії / Social and cultural peculiarities of Russian socio-democratic movement and the problem of identity of Russian-Jewish intelligentsia in the Russian Empire

open access: yesАктуальні питання суспільних наук та історії медицини, 2015
Безаров Олександр. Соціокультурні особливості російського соціал-демократичного руху і проблема ідентичності російсько-єврейської інтелігенції в Російській імперії.
Безаров Олександр
doaj  

Polymer Network Modified Perovskite for High‐Performance Pure Blue Light‐Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
A polymer network of poly(4‐vinylphenol) (PVPh) is introduced to improve pure blue perovskite light‐emitting diodes. PVPh effectively passivates defects, enhances film morphology, reduces lattice strain, and suppresses ion migration. These effects lead to record device performance, achieving 9.82% external quantum efficiency and stable blue emission at
Zhongkai Yu   +11 more
wiley   +1 more source

Electronic governance, premise for implementation of electronic democracy [PDF]

open access: yes
Living in a rapidly changing society, where information travels with great speed and its upgrade is essential, we decided to approach certain aspects of e-democracy, as a dynamic way of citizen participation, using new Information and Communications ...
Grigorovici, Iulia, Matei, Ani
core   +1 more source

Regionally Localized Electrolyte Engineering via UV Crosslinking for Stable Ether–Carbonate Lithium Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a regionally localized electrolyte (RLE) that spatially separates ether‐ and carbonate‐based functions to stabilize both Li metal and high‐voltage cathodes. An immobilized ether‐rich layer directs Li+ transport, activates LiNO3 locally, and forms a uniform LiF‐rich SEI, enabling lower overpotential, uniform deposition, and long ...
Eunbin Lim   +4 more
wiley   +1 more source

Highly Conductive and Stretchable Photothermal CuSe Fiber for Wearable Electronics and Implantable Drug Release Systems

open access: yesAdvanced Functional Materials, EarlyView.
The conductive and stretchable photothermal CuSe fiber is fabricated for versatile biomedical applications. This CuSe fiber functions as a reliable wearable strain sensor and heater due to its high conductivity, stretchability and photothermal efficiency.
Kukro Yoon   +9 more
wiley   +1 more source

Communication perspectives on social networking and citizen journalism challenges to traditional newspapers [PDF]

open access: yes
Communication perspectives are presented on the challenges posed to traditional newspapers by social media and citizen journalism, with special reference to the United States.
Katz, James E.
core  

Built‐In Interfacial Electric Field in Hydroxyl‐Terminated MXene/COF Heterostructures for Enhanced Solid‐State Supercapacitors

open access: yesAdvanced Functional Materials, EarlyView.
Hydroxyl‐terminated MXene is integrated with a redox‐active covalent organic framework through electrostatic self‐assembly followed by hydrothermal treatment to construct MXene/COF heterostructures with a built‐in interfacial electric field. Termination‐controlled interfacial electronic modulation induces charge redistribution and favorable band ...
Cheru Fekadu Molla   +4 more
wiley   +1 more source

Assembly of Cell‐Seeded 3D Printed Hydrogel Modules with Perfusable Channel Networks

open access: yesAdvanced Functional Materials, EarlyView.
Macroscale assembly was utilized to prepare perfusable tissue constructs from individually 3D printed hydrogel modules with embedded branched channel networks and port arrays for cell seeding. Novel multi‐material bioreactors were fabricated to facilitate the gluing of individual modules and the perfusion culture of assembled modular constructs seeded ...
Zachary J. Geffert   +10 more
wiley   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

Ostrava, spirituelle und religiöse Zentrum der Tschechoslowakischen Republik?

open access: yesStudia Historica Brunensia, 2016
The long-standing significance of Ostrava as an economic and industrial centre of the Czech lands (from around 1850 to 1989) continues to thematically determine Ostrava's position in Czech, Czechoslovakian and Central European historiography.
Martin Jemelka
doaj  

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