Results 201 to 210 of about 42,363,074 (398)

Botulinum Toxin for Essential Tremor of the Voice With Multiple Anatomical Sites of Tremor: A Crossover Design Study of Unilateral Versus Bilateral Injection [PDF]

open access: bronze, 2000
Paul Warrick   +5 more
openalex   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

open access: yesAdvanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim   +4 more
wiley   +1 more source

Antiemetic efficacy of cimetidine randomized, double-blind, crossover study with dexamethasone in cancer patients receiving emetogenic chemotherapy

open access: bronze, 1991
Mastour S. Al‐Ghamdi   +4 more
openalex   +1 more source

Polar Indirect Valley as a Limiting Factor for Radiative Efficiency in Gold‐Based Mixed‐Valence Double Perovskites

open access: yesAdvanced Optical Materials, EarlyView.
This work addresses a common issue in many double perovskites: their weak luminescence. Using the example of promising infrared‐bandgap mixed‐valence gold halide double perovskites, it demonstrates strong polar electron‐phonon coupling. Temperature‐dependent spectroscopy reveals that bright polarons are favored at low temperature, while a dark low ...
Ange B. Chambissie Kameni   +8 more
wiley   +1 more source

Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy

open access: yesAdvanced Optical Materials, EarlyView.
Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou   +4 more
wiley   +1 more source

The Fish Collagen Supplementation and Proteomic Features in Healthy Women-A Crossover Study. [PDF]

open access: yesNutrients
Stelmach-Mardas M   +7 more
europepmc   +1 more source

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