Results 221 to 230 of about 21,223,372 (296)

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced 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, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Correction: Higher-order brain processes, rather than early processing, underlie sensory problems in ME/CFS: evidence from ERPs. [PDF]

Front Med (Lausanne)
Kumar S, Veldhuis A, Yazdani F.
europepmc   +1 more source

Electrically Reconfigurable Optical Initialization of Spin Valley Polarization in Monolayer WS2 Enabled by Switchable Dual‐Mode Liquid Crystal Lasers

Advanced Optical Materials, EarlyView.
This work presents an electrically controllable approach to spin–valley polarization in monolayer WS2 by integrating it with a dual‐mode liquid crystal laser. Applying an external field triggers phase transitions that switch the laser emission between helicity‐defined band‐edge lasing and unpolarized random lasing.
Yu‐Chuan Tsao, Ya‐Ping Hsieh, Yang‐Fang Chen, Hui‐Yu Chen   +3 more
wiley   +1 more source

Wavelength‐Multiplexed 2D Beam Steering via a Passive Diffractive Network

Advanced Optical Materials, EarlyView.
Illustration of a wavelength‐multiplexed diffractive beam steering system, which is composed of K cascaded diffractive layers, each containing phase‐modulating elements that are jointly optimized using deep learning–based optimization. When illuminated with a set of wavelengths {λ1,λ2,…,λNw}$\{ {{{\lambda }_1},{{\lambda }_2},\ldots ,{{\lambda }_{{{N}_w}
Che‐Yung Shen, Yuhang Li, Çağatay Işıl, Tianyi Gan, Mona Jarrahi, Aydogan Ozcan   +5 more
wiley   +1 more source

Helicity‐Dependent All‐Optical Switching in Bi,Ga‐Substituted Rare‐Earth Iron Garnet Films Driven by Orbital Magnetic Moment

Advanced Optical Materials, EarlyView.
Helicity‐dependent all‐optical magnetization switching was demonstrated for the Bi‐ and Ga‐substituted rare‐earth (R) iron garnet crystal thin films (Bi,Ga:RIG; R = Eu3+, Nd3+, and Y3+). The efficiency followed the order EIG > NIG > YIG. These results show the correlation between 4f orbital moment (4f〈L〉) of R3+ and helicity‐dependent optical ...
Ayumu Hata, Ryuichiro Asatani, Saiki Suzuki, Md Abdullah Al Masud, Hotaka Sakaguchi, Jun Okabayashi, Shinji Isogami, Takayuki Ishibashi   +7 more
wiley   +1 more source

Mapping the Public Health Landscape in Greece: Governance, Stakeholders, Data Systems, and Policy Frameworks. [PDF]

Int J Environ Res Public Health
Triantafyllou C, Ntikoudi A, Papachristou A, Psiakis V, Fonseca VR, Breda J.   +5 more
europepmc   +1 more source

Indirect technique to estimate neonatal, infant, and under-five mortality rates for India and its states: A population-based cross-sectional study. [PDF]

PLoS One
Singh M, Singh A, Tiwari AK.
europepmc   +1 more source

Non-complicity as a principle of public health ethics. [PDF]

Public Health Ethics
Snyder J.
europepmc   +1 more source

ORDER-DR: external validation of severity grading and referable-risk stratification from fundus images. [PDF]

Front Endocrinol (Lausanne)
Sheng Q, Dong Q, Wu S, Liang W.
europepmc   +1 more source

Adaptive Fourier decomposition-based time-frequency analysis of COVID-19 epidemic trends and policy interventions in Washington D.C., with comparative validation in London. [PDF]

J Thorac Dis
Cen K, Li X, Lu G, Li Y, Wang Y, Zeng Z, Yang Z, Deng X, Hon C.   +8 more
europepmc   +1 more source