Results 251 to 260 of about 3,762,891 (330)
Probiotics and gastrointestinal disorders: an umbrella meta-analysis of therapeutic efficacy. [PDF]
Zeng Q+8 more
europepmc +1 more source
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang+7 more
wiley +1 more source
From meta‐analysis to Cochrane reviews
Nicole Ebner+3 more
doaj +1 more source
Switchable Terahertz Beam Steering with Near‐Perfect Ordinary Transmission
This study introduces a reconfigurable metasurface that enables switchable terahertz beam steering upon actuation by a global temperature change. At room temperature, it achieves a true “OFF” state with nearly 100% transmission, behaving as if the metasurface is not present, thereby not distorting incoming light.
Zhixiang Huang+11 more
wiley +1 more source
All‐Dielectric Metasurface‐Based Gap Waveguides
Dielectric metasurface‐based waveguides (metawavegides) offer several advantages over conventional waveguides, making them ideal for integrated photonics. A design of a metawaveguide composed of a pair of dielectric metasurfaces is proposed, where each metasurface behaves as a wall of either a perfect electric conductor or a perfect magnetic conductor,
Vladimir R. Tuz+4 more
wiley +1 more source
Cryoanalgesia in Lung Transplantation - A Systematic Review and Meta-analysis. [PDF]
Passos FS+9 more
europepmc +1 more source
Abstract Photochemical C−C coupling reactions can be tailored to industrial chemical processes and preparations of pharmaceuticals. Recent approaches in this area are limited to using precious transition metal coordination complexes that facilitate light absorption and redox processes with benchtop chemicals. Herein, we propose a paradigm that involves
Samjhana Maharjan+9 more
wiley +1 more source
Correlates of preparedness for caregiving of poststroke patients: a meta-analysis. [PDF]
Li C+7 more
europepmc +1 more source
Abstract While arylazo sulfones have been widely applied as arylating agents, their exploitation for diazenylation reactions has been previously limited to electron‐rich alkenes such as styrenes and silyl enol ethers. Herein we optimized a synthetic one‐pot protocol to access oxazolyl azo compounds via a selective domino ring‐closing/aryldiazenylation ...
Enzo Delalande+5 more
wiley +1 more source