Results 71 to 80 of about 207,153 (261)

GOVERNANÇA DEMOCRÁTICA E TERCEIRO SETOR: possibilidades e dificuldades em duas ONGs na cidade de Porto Alegre

open access: yesRevista de Políticas Públicas, 2015
The purpose of this study was to investigate the extent to which NGOs are helping to establish a system of democratic governance, particularly in actions developed by two NGOs located in Porto Alegre-RS.
Fabiano Santana dos Santos   +2 more
doaj  

Mudança social: uma arte? Empreendimentos sociais que utilizam a arte como forma de mudança Social change: an art? Social enterprises that use art as a form of change

open access: yesRevista de Administração Pública, 2007
Este artigo se propõe a conhecer, analisar e sistematizar, crítica e estrategicamente, o que diferencia os empreendimentos sociais que atuam por meio da arte para obter mudança social, a partir de um estudo qualitativo.
Marcelo Tyszler
doaj   +1 more source

Recent Advances on Thermochromic Inks for Security Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira   +5 more
wiley   +1 more source

Design and Fabrication of High Dielectric GRIN Lens for a Directive Antenna Using a Hybrid Filled Voxel Additive Manufacturing Technique

open access: yesAdvanced Materials Technologies, EarlyView.
Hybrid‐filled voxel AM enables integration of high‐permittivity materials into additively manufactured devices. Using this approach, a graded refractive index (GRIN) lens is demonstrated, achieving a 50% antenna size reduction with enhanced directivity.
Qianfang Zheng   +4 more
wiley   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Overcoming Printing and Interfacial Challenges in Liquid Metal Direct Writing for Integrated Stretchable Electronics

open access: yesAdvanced Materials Technologies, EarlyView.
Liquid metal direct writing is advanced from a technological and fundamental point. Utilizing a kinematic bed, printing on large surfaces with irregularities is enabled. Furthermore, a pressure‐driven flow during printing is discovered that affects the thickness of traces.
Maximilian Krack   +15 more
wiley   +1 more source

THE (UN)BEARABLE NEGATIVENESS OF MARKETING IN THE THIRD SECTOR. THE CASE STUDY OF TWO PORTUGUESE MUSEUMS

open access: yesPerspectivas Contemporâneas, 2006
In general the Third Sector appears associated to "noble" missions, absent from "more materialistic" interests. Thus, issues related to marketing strategies seem to make no sense in such context. In this case study we undertake a detailed analysis of the
Aurora Amélia Castro Teixeira   +2 more
doaj  

Advances in Solid‐Phase Processing Techniques: Innovations, Applications, and Future Perspectives

open access: yesAdvanced Materials Technologies, EarlyView.
Based on practical manufacturing challenges, this review examines advanced solid‐phase processing techniques that overcome the inherent limitations of conventional melting‐based and traditional solid‐phase manufacturing, enabling the production of higher‐performance components at reduced cost through process innovation and improved supply‐chain ...
Tianhao Wang
wiley   +1 more source

Third Way, Third Sector and the partnership IAS/public education system in Brazil

open access: yesEducação: Teoria e Prática, 2009
This paper aims to debate on the public-private partnerships in education and to bring elements from the third way and third sector as an important part of this topic.
Vera Maria Vidal Peroni   +4 more
doaj  

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

open access: yesAdvanced Materials Technologies, EarlyView.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi   +4 more
wiley   +1 more source

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