Results 71 to 80 of about 659,252 (291)

Contact Lens with Moiré Patterns for High‐Precision Eye Tracking

Advanced Functional Materials, EarlyView.
This work presents a passive contact lens for high‐precision eye tracking, integrating a microscopic moiré grating label. The parallax‐induced shift of macroscopic moiré patterns enables angle measurement with 0.28° precision using a standard camera under ambient light.
Ilia M. Fradkin, Roman V. Kirtaev, Mikhail S. Mironov, Dmitriy V. Grudinin, Alexander A. Marchenko, Marina M. Chugunova, Valentin R. Solovei, Alexander V. Syuy, Andrey A. Vyshnevyy, Ilya P. Radko, Aleksey V. Arsenin, Valentyn S. Volkov   +11 more
wiley   +1 more source

Art Markets and Digital Histories

Arts, 2019
This Special Issue of Arts investigates the use of digital methods in the study of art markets and their histories. Digital art history or historical research facilitated by computer-technology in general is omnipresent in academia and increasingly ...
Sandra van Ginhoven, Claartje Rasterhoff
doaj   +1 more source

An Ionic Gelation Powder for Ultrafast Hemostasis and Accelerated Wound Healing

Advanced Functional Materials, EarlyView.
An ultrafast ionic gelation‐activated hemostatic powder (AGCL) forms a hydrogel within ≈1 s upon contact with blood‐derived calcium ions. The AGCL powder enables rapid hemorrhage control, strong tissue adhesion, and enhanced healing. The powder's pre‐crosslinked polymer network ensures high blood uptake and stability, offering effective treatment for ...
Youngju Son, Kyusoon Pak, Taehoon Lee, Monica Celine Prayogo, Jinyoung Choi, Sukkyung Kang, Minjoo Kang, Byungkook Oh, Sang Yu Sun, Sanha Kim, Sung Gap Im, Sangyong Jon, Steve Park   +12 more
wiley   +1 more source

Online tools helped direct market farmers during the COVID-19 pandemic, but resources are needed for equitable adoption

Journal of Agriculture, Food Systems, and Community Development
This paper examines the use by California’s direct market farmers (DMFs) of online sales and market­ing during the early onset of the COVID-19 pan­demic in the United States, from March through December 2020. The pandemic caused market dis­ruptions that
Sasha Pesci, Jennie Durant, Gwyneth Manser, Ryan Galt, Lauren Asprooth, Natalia Pinzón   +5 more
doaj   +1 more source

Theory‐Guided Design of Non‐Precious Single‐Atom Catalyst for Electrocatalytic Chlorine Evolution

Advanced Functional Materials, EarlyView.
To overcome the reliance on noble metals for the chlorine evolution reaction (CER), we designed a non‐precious single‐atom catalyst (SAC), NiN3O–O. It achieves a low overpotential of 75 mV, 95.8% Cl2 selectivity, and outperforms commercial dimensionally stable anodes (DSAs).
Kai Ma, Longfei Yang, Xiaojin Yang, Chang Zhang, Di Zhang, Linda Zhang, Li Wei, Chenliang Ye, Hao Li, Weijie Yang   +9 more
wiley   +1 more source

Media transformation and new practices of citizenship: the example of environmental activism in South Durban [PDF]

, 2002
South African media and telecommunications have been fundamentally restructured in the last decade. Corporate unbundling and black economic empowerment have transformed the ownership of broadcasting, print media, publishing, and telecommunications; new ...
Barnett, Clive
core  

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Mechanical and Electrical Phenotype of hiPSC‐Cardiomyocytes on Fibronectin‐Based Hydrogels

Advanced Healthcare Materials, EarlyView.
We introduce fibronectin‐based PEG hydrogels with controlled rigidity to enable the culture of iPSC‐derived cardiomyocytes. These substrates offer an alternative to the current culture of these cells on fibronectin‐coated glass, providing enhanced structural and functional behavior. The system provides a more physiologically relevant platform to assess
Ana Da Silva Costa, Lineta Stonkute, Sara Trujillo, Mariana Azevedo Gonzalez Oliva, Francis Burton, Matthew J. Dalby, Oana Dobre, Godfrey Smith, Manuel Salmeron‐Sanchez   +8 more
wiley   +1 more source

Meta v Bundeskartellamt: Something Old, Something New

European Papers
(Series Information) European Papers - A Journal on Law and Integration, 2023 8(3), 1077-1103 | European Forum Insight of 8 January 2024 | (Series Information) European Papers (News of dd month yyyy) | (Table of Contents) I. Introduction - II.
Peter J. van de Waerdt
doaj   +1 more source

The Role of Innovation in the Analysis of Abuse of Dominance in Digital Markets: The Analysis of Chosen Practices of Google Search

Market and Competition Law Review, 2019
Competition investigations in digital markets focus increasingly on future markets, and incentives to invest and innovate play here a larger role than in traditional "brick and mortar" industries.
Beata Mäihäniemi
doaj   +1 more source