Results 31 to 40 of about 286,949 (242)

O Degelo do Ártico no Século XXI:Fim do Isolamento Russo?

open access: yesCarta Internacional, 2016
Este artigo tem como objetivo analisar as consequências do degelo do Ártico na geopolítica russa. A partir de uma análise histórica do isolamento geográfico da Rússia, assim como de seu isolamento político imposto pelos Estados Unidos e pela OTAN, busca ...
Erico Duarte, Lucas Sudbrack
doaj   +1 more source

GeS as an Emerging OTS Material: Atomic Structure and Modeling of ON/OFF Switching

open access: yesAdvanced Functional Materials, EarlyView.
The structural puzzle of glassy GeS, an advanced memory‐selector material, has finally been disentangled, revealing a patchwork of mixed tetrahedral and trigonal species. Under a high electric field, over‐ and under‐coordinated Ge and S defects, together with three‐membered rings, form an interconnected network associated with localized and extended ...
Andrey Tverjanovich   +13 more
wiley   +1 more source

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

open access: yesAdvanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang   +6 more
wiley   +1 more source

RELAÇÕES UCRÂNA E RÚSSIA PÓS URSS: identidade e energia [PDF]

open access: yes, 2015
TCC (graduação) - Universidade Federal de Santa Catarina. Centro Sócio-Econômico. Relações Internacionais.O ano de 2014 trouxe à tona os conflitos políticos, econômicos e ideológicos entre Ucrânia e Rússia que vêm acontecendo desde a dissolução da URSS ...
França, Alana Benini Luiz de
core  

A Rússia um pais igualitário?

open access: yes, 2023
  (ver https://twitter.com/MavkaSlavka/status/1676195964737191937) A Rússia segundo a propaganda nacional é um país igualitário, no qual as elites, e especialmente o presidente Putin, trabalham para o bem de todos.
Marc Jacquinet
core   +1 more source

Microglial Deubiquitinase OTUD7B Stabilizes STAT3 to Promote Neuroinflammation and Cognitive Decline in Alzheimer's Disease

open access: yesAdvanced Science, EarlyView.
. ABSTRACT Neuroinflammation driven by microglial activation is a defining feature of Alzheimer's disease (AD), yet the molecular mechanisms sustaining this proinflammatory state remain unclear. Here, we identify the deubiquitinase OTUD7B as a critical regulator of microglial activation and AD pathology.
Luyao Li   +15 more
wiley   +1 more source

Características Gerais do Sistema Nacional de Inovação Brasileiro: uma comparação com Rússia, Índia e China (BRIC’s) [PDF]

open access: yes, 2008
TCC (graduação) - Universidade Federal de Santa Catarina. Centro Sócio-Econômico. Economia.O presente estudo procura apresentar, uma revisão de literatura sobre os conceitos de Sistema Nacional de Inovação, destacando a inovação, conhecimento e ...
Paiva, Amanda Rosa de
core  

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

open access: yesAdvanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

open access: yesAdvanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais   +32 more
wiley   +1 more source

Nova doutrina militar da Rússia [PDF]

open access: yes, 2010
Este artigo visa esclarecer alguns pontos-chave constantes na nova doutrina militar da Federação da Rússia, aprovada por Decreto-Lei de 5 de Fevereiro de 2010, do Presidente da Rússia, Dmitriy ...
Petrovsky, Pavel
core   +1 more source

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