Results 81 to 90 of about 502,510 (328)

Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks   +2 more
wiley   +1 more source

Tiempos nihilistas. Pensando con Max Weber.

open access: yesEstudios Sociológicos
El texto presenta una reseña del ensayo Tiempos nihilistas. Pensando con Max Weber (2023) de la filósofa política y feminista Wendy Brown. Este ensayo constituye una revisión contemporánea de los textos “La ciencia como vocación” y “La política como ...
Olga Sabido Ramos
doaj   +1 more source

A sociologia de Max Weber: sua importância para a teoria e a prática da administração [PDF]

open access: yes, 2006
A tradução integral da obra de Max Weber – Wirtschaft und Gesellschaft – empreendida pela editora mexicana – Fondo de Cultura Económica, sob a esclarecida direção de José Medina Echavarría, é um acontecimento a cuja magnitude esta Revista não pode ...
Ramos, Guerreiro
core   +1 more source

Influence of Outcoupling Layers on Top‐Emitting Perovskite Light‐Emitting Diodes

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Top‐emitting perovskite LEDs offer benefits over typical bottom‐emitting architectures, toward lasing, improved thermal management, and on‐chip fabrication compatibility. Outcoupling layers offer a strategy uniquely applicable to top‐emitting LEDs to optimize EQE by improving optical outcoupling.
James C. Loy   +5 more
wiley   +1 more source

O Acorde-Weber: uma análise sobre a identidade teórica de Max Weber

open access: yesSemina: Ciências Sociais e Humanas, 2011
Este artigo tem por objetivo desenvolver algumas considerações acerca das relações entre Objetividade e Subjetividade na Sociologia de Max Weber e em seu pensamento historiográfico.
José D’Assunção Barros
doaj   +1 more source

Ortega and Kuhn: parallel philosophies on their sources [PDF]

open access: yes, 2016
El presente estudio trata de mostrar los profundos paralelismos que existen entre las obras de Ortega y las de Kuhn, con especial énfasis en el ámbito de la historia y la historia de la ciencia.
Gutiérrez Simón, Rodolfo
core   +2 more sources

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

open access: yesAdvanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello   +7 more
wiley   +1 more source

The impact of obesity on health-related quality of life in Spain

open access: yesHealth and Quality of Life Outcomes, 2017
Background It is well documented that obesity is strongly associated with mortality and morbidity, but less is known about its impact on functional status and health-related quality of life (HRQOL).
Rafael Busutil   +5 more
doaj   +1 more source

Challenges and Future Directions in Assessing the Quality and Completeness of Advanced Materials Safety Data for Re‐Usability: A Position Paper From the Nanosafety Community

open access: yesAdvanced Sustainable Systems, EarlyView.
Nanosafety data provide a guiding example for establishing best practices in data management, aligning with FAIR principles and quality criteria. This review explores existing quality assessment approaches for reliability, relevance, and completeness, emphasizing the need for harmonization and adaptation to nanomaterials and advanced materials. The aim
Verónica I. Dumit   +43 more
wiley   +1 more source

Another Fateful Triangle: Jews, Muslims, Europe

open access: yesReligions
This paper argues that Jews–Muslims–Europe is a fateful triangle, in which identities and identifications both inform and form one another. It draws on interview-based research at the Jewish Museum Berlin to showcase how Jewish and Muslim positionalities
Elisabeth Jane Becker
doaj   +1 more source

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