Results 71 to 80 of about 1,346,808 (303)

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

open access: yesAdvanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya   +22 more
wiley   +1 more source

Lighting the fire for media freedom

open access: yesPacific Journalism Review, 1999
'In Samoa, the media can be decribed as a tree that has no shadow. It offers neither shelter nor hope. It can be described as a flower that blooms but then quickly withers, as if afraid of the sunlight.
Savea Sano Malifa
doaj   +1 more source

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

open access: yesAdvanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam   +8 more
wiley   +1 more source

China media freedom debate [PDF]

open access: yes, 2007
More than a hundred people came to our BBC Chinese World Service debate last night. I was there but didn’t understand a word as, for obvious reasons, people were speaking Chinese.
Beckett, Charlie
core  

Algorithmic Design of Disordered Networks With Arbitrary Coordination: Application to Biophotonics

open access: yesAdvanced Functional Materials, EarlyView.
Predictive Design of Disordered Networks: Disordered network‐like morphologies are abundant in nature, from cytoskeletal networks to bone structures and chalcogenide glasses. These structures are naturally hard to characterize. A new algorithmic tool extends the established Wooten–Weaire–Winer (WWW) algorithm to valencies above 4.
Florin Hemmann   +3 more
wiley   +1 more source

Institutional Media Freedom in the EU: Implications for Democratic Governance and Social Innovation [PDF]

open access: yesMarketing i Menedžment Innovacij
The study investigates the vital role of press freedom as a cornerstone of democratic societies and highlights its importance as an indicator of human rights and civil liberties in different countries. Press freedom encompasses the media and journalists'
doaj   +1 more source

Factors that Influence Freedom of Speech and Self-censorship in Mass Media in Contemporary Russia

open access: yesŽurnalistikos Tyrimai, 2015
An attempt to define the degree of media freedom in contemporary Russia leads to contradiction between the declaration of the mass media freedom provided by the Constitution of the Russian Federation and the Soviet Union heritage of unequivocal control ...
Oksana Olshevskaya
doaj   +1 more source

Freedom of association + freedom of speech = freedom of the media?

open access: yesGlobal Media Journal African Edition, 2011
The Department of Journalism at Stellenbosch University held a conference in celebration of International Press Freedom Day on 5 May.  Abbey Makoe of the Forum for Black Journalists, Rhoda Kadalie, human rights activist, Khathu Mamaila, editor, City Press, and Henry Jeffreys, editor, Die Burger, debated the pro's and con's of media freedom.
openaire   +2 more sources

Interaction of vector solitons with a nonlinear interface

open access: yes, 2002
We develop the analytical method of field momenta for analyzing the dynamics of optical vector solitons in photorefractive nonlinear media. First, we derive the effective evolution equations for the parameters of multi-component solitons composed of ...
Aceves   +19 more
core   +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

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