Results 51 to 60 of about 1,206,916 (256)

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

The motivation of university students to participate in tai chi exercise

open access: yes, 2008
This study applied expectancy-value model (Eccles et al., 1983; Wigfield & Eccles, 2000) to Tai Chi among university students in Hong Kong. A total of 117 college students participated in the study assessing their expectancy-related beliefs, task values,
Linxuan, Guo, Keppell, Michael J.
core   +1 more source

Semiconducting Polymers Post‐Functionalized With Ureido‐Pyrimidinone for Robust Stretchable Transistors

open access: yesAdvanced Functional Materials, EarlyView.
The design of intrinsically robust stretchable semiconducting polymers was achieved through OTBS‐mediated post‐functionalization of PDPP2T side chains with UPy units, generating dual hydrogen‐bonding motifs comprising weaker urethane linkages and strong quadruple UPy interactions along the long alkyl side chain, which is crucial for achieving desirable
Dinda Bazliah   +7 more
wiley   +1 more source

Tai Chi and Pulmonary Conditions

open access: yes, 2021
Introduction: Tai Chi, a low-intensity exercise, has been found to have numerous health benefits throughout all systems of the body. Due to Tai Chi's focus on controlled breath and diaphragmatic breathing, Tai Chi has been shown to improve pulmonary
Liu, Howe   +4 more
core  

Ultrathin Amphipathic Dual‐Polymer Networks: Unlocking Hyper‐Permeable CO2 Capture via Solvent‐Mediated Poly(Ethylene Oxide) Amorphization

open access: yesAdvanced Functional Materials, EarlyView.
Hydrophilic PEO‐copolymers and hydrophobic PDMS are physically integrated via a compatibilizing solvent into an amphipathic dual‐polymer network with versatile interfacial affinity and completely amorphized PEO segments for hyper‐permeable CO2 transport.
Ji Wu   +9 more
wiley   +1 more source

Trends in Yoga, Tai Chi, and Qigong use: differentiations between practices and the need for dialogue and diffusion

open access: yes, 2019
Yoga, tai chi, and qigong (YTQ) are holistic movement practices that are commonly treated as complementary and alternative medicine (CAM) modalities.
Vergeer, Ineke
core   +1 more source

Transformations with Tai Chi: The Experience of Community-Dwelling Tai Chi Practitioners [PDF]

open access: yes, 2008
While Tai Chi practice has dramatically increased across the U.S., its mechanism is unknown, and overall understanding of the phenomenon is lacking.
Yim Alperson, Sunny, PhD
core   +1 more source

In Situ Two‐Dimensional Residual Stress Characterization of Thin Films

open access: yesAdvanced Materials Technologies, EarlyView.
An integrated in situ curvature metrology platform combining speckle‐based curvature optical metrology (SCOM) with multi‐beam optical sensors (MOS) enables spatially resolved two‐dimensional curvature mapping of thick sputtered coatings. The SCOM technique provides excellent agreement with MOS while providing an extended measurable curvature range ...
Wai Jue Tan   +6 more
wiley   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

open access: yesAdvanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco   +4 more
wiley   +1 more source

Boxer Zhang Songxi and the Origins of the Internal-External School Concept

open access: yesRevista de Artes Marciales Asiáticas, 2012
Zhang Songxi was so highly respected for his boxing skills that the emperor’s grand secretary, Shen Yiguan (1531–1616), was inspired to write the Biography of Boxer Zhang Songxi.
Marnix Wells, Stanley E. Henning
doaj  

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