Results 51 to 60 of about 153,542 (277)

Summit "Rio + 20" and Sustainable Development of Russia

open access: yesVestnik MGIMO-Universiteta, 2012
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A. L. Chechevishnikov
doaj   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

The Rio+20 Process: Forward Movement for the Environment? [PDF]

open access: yes, 2012
This commentary summarizes the events at the recent UN Conference on Sustainable Development, commonly referred to as Rio+20, noting both the role of official national delegations and the diversity of non-state parties that were involved in a variety of ...
Powers, Ann
core   +1 more source

A Non‐Reciprocal Architected Porous Medium

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies   +2 more
wiley   +1 more source

Da Rio+20 a Rio-2016:

open access: yesSustentabilidade em Debate, 2013
Este artigo busca analisar a maneira como os Jogos Olímpicos têm incorporado os principais compromissos da sustentabilidade acordados nas Conferencias Rio 92, Rio+10 e Rio+20 nos seus processos de planejamento e operação, influenciando as cidades ...
Maureen Flores   +1 more
doaj  

Developing a Global Soil Regime [PDF]

open access: yes, 2015
From the 1960s onwards, the global community became more aware of the phenomena of air and water pollution. More recently, the issues of climate change, loss of biodiversity, desertification, drought, and land degradation have become more prominent ...
Boer, Ben, Hannam, Ian
core   +3 more sources

Copper–Collagen Interactions Regulate the Mechanical and Invasive Properties of Tumor Spheroids

open access: yesAdvanced Healthcare Materials, EarlyView.
Ionic copper is investigated as a modulator of tumor spheroid growth and invasiveness in a 3D microfluidic glioblastoma model. Copper exposure alters metabolic activity, cytoskeletal organization, protrusion dynamics, and EMT‐related phenotypes in a dose‐ and timing‐dependent manner, revealing how copper bioavailability shapes tumor aggressiveness ...
Paula Guerrero‐López   +5 more
wiley   +1 more source

Economia Verde e Rio + 20 : recortando o desenvolvimento sustentável [PDF]

open access: yes, 2012
O presente trabalho traz a questão da Economia Verde, investigando seu contexto histórico, econômico e político que a gestou alguns determinantes de sua consistência e contradições ...
Amazonas, Maurício
core  

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

open access: yesAdvanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa   +3 more
wiley   +1 more source

PERU-BOLÍVIA-BRASIL: garimpeiros e ideia de região transfronteiriça

open access: yesRevista da ANPEGE, 2017
O presente trabalho analisa a pequena mineração informal e ilegal de ouro (pequenos em volume de produção, em venda e em aporte de capital) na contradição com os ordenamentos espaciais e as ações regulatórias relacionadas à criação de áreas ...
Maria Célia Nunes Coelho   +1 more
doaj   +1 more source

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