Results 51 to 60 of about 1,194,169 (280)
Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation
Advanced Materials, EarlyView.Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju +7 more
wiley +1 more source
Small State Regional Cooperation, South-South and South-North Migration, and International Trade [PDF]
This paper provides a different basis than previous analyses for regional bloc formation and regional migration. Due to low bargaining power and fixed costs, small states face a severe disadvantage in negotiations with the rest of the world and might ...
Schiff, Maurice
core +3 more sources
Czech Journal of International Relations, 2014 This text deals with the development assistance of the Republic of South Africa after the fall of the apartheid era. The article is framed by the theory of South-South cooperation, which was established in the 1950’s and has risen since the beginning of
Linda Piknerová
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Cooperação internacional em saúde: o caso da Fiocruz
História, Ciências, Saúde: ManguinhosResumo O artigo revisa a trajetória da cooperação internacional considerando os ajustes feitos a partir das principais conferências internacionais sobre o assunto (Buenos Aires, 1978; Roma, 2003; Paris, 2005; Acra, 2008; e Busan, 2011).
José Roberto Ferreira +3 more
doaj +1 more source
Photochemical Fuel Carrier Molecules for Robotic Embodied Energy
Advanced Materials, EarlyView.We designed a novel fuel carrier photoresponsive molecule for on‐demand energy storage and release. Carrier molecules undergo bond scission under UV light to release chemical fuel and locally generate propulsive Marangoni flows. We demonstrate this photochemical embodied energy strategy in small‐scale robots and active matter systems, enabling ...
Chuqi Huang +6 more
wiley +1 more source
Does China’s Aid in Africa Affect Traditional Donors?
International Studies: Interdisciplinary Political and Cultural Journal, 2019 China’s role as an emerging aid provider and the concept of a social plan in Africa has led to polarised responses in the West. Several say that this “productivist” strategy is much less determined by the concepts of citizenship, legal, social rights ...
Kassaye Deyassa
doaj +1 more source
Advanced Materials, EarlyView.ABSTRACT Piezocatalytic hydrogen evolution enables the conversion of mechanical energy into chemical fuels, but its efficiency is constrained by a trade‐off between piezoelectric polarization and electronic conductivity. Strong piezoelectric polarization is essential for sufficient driving force, yet highly polar materials typically suffer from poor ...
Chongyan Hao +13 more
wiley +1 more source
Self‐Regulating Sodium‐Ion Battery Materials: From Phase Reconstruction to Functional Activation
Advanced Materials, EarlyView.Self‐regulating sodium‐ion batteries hinge on programmable phase behavior in layered oxides, interphases that renew without growth, and electrolytes that steer solvation and chemistry. This review distills mechanisms into design rules that span composition, site and entropy tuning, and self‐buffering anodes, linking operando evidence to choices and ...
Hong Gao +10 more
wiley +1 more source
Meridiano 47, 2011 A presente análise tem como foco analisar os possíveis rumos da política exterior brasileira no que tange às relações com a África.
Wolfgang Döpcke
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