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The Safety of COVID-19 Vaccinations—We Should Rethink the Policy
Vaccines, 2021 Background: COVID-19 vaccines have had expedited reviews without sufficient safety data. We wanted to compare risks and benefits. Method: We calculated the number needed to vaccinate (NNTV) from a large Israeli field study to prevent one death.
Harald Walach +2 more
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IEEE Access, 2023 This work is concerned with a detailed study of an active antenna, which can serve as a prototype of a phased array antenna element for a future lunar very-low-frequency (VLF) radio telescope operating in the frequency range of 1–30 MHz.
Peter L. Tokarsky +2 more
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Deep learning for terahertz image denoising in nondestructive historical document analysis
Scientific Reports, 2022 Historical documents contain essential information about the past, including places, people, or events. Many of these valuable cultural artifacts cannot be further examined due to aging or external influences, as they are too fragile to be opened or ...
Balaka Dutta +11 more
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Plant Foliar Geometry as a Biomimetic Template for Antenna Design
Biomimetics, 2023 Plant diversity includes over 300,000 species, and leaf structure is one of the main targets of selection, being highly variable in shape and size. On the other hand, the optimization of antenna design has no unique solution to satisfy the current range ...
Jose Ignacio Lozano +5 more
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X-band coaxial monopole antenna with an additional metal screen
Journal of Telecommunications and Information Technology, 2023 The novel coaxial monopole antenna design with an additional metal screen is presented. The radiation char- acteristics of this antenna are investigated depending on a dis- tance between the ground plane and additional metal screens, as well as on a ...
Maksym Khruslov , Vadym Pazynin
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Известия высших учебных заведений России: Радиоэлектроника, 2023 Introduction. Phased antenna arrays (PAA) of large geometric dimensions find wide application in various spacecraft systems. The PAA design assumes the deployment of its sections in outer space to form a plane of the radiating aperture.
M. R. Bibarsov +4 more
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Raman Radiation Patterns of Graphene [PDF]
ACS Nano, 2015 We report the angular distribution of the G and 2D Raman scattering from graphene on glass by detecting back focal plane patterns. The G Raman emission can be described by a superposition of two incoherent orthogonal point dipoles oriented in the graphene plane.
Harald Budde +7 more
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CT&F Ciencia, Tecnología & Futuro, 2022 Full Waveform Inversion (FWI) is an optimization method that retrieves high-quality images of the ground's internal electromagnetic properties, such as permittivity, permeability, or conductivity.
Andrés-Fernando Plata-Galvis +3 more
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Dynamic patterns of adaptive radiation [PDF]
Proceedings of the National Academy of Sciences, 2005 Adaptive radiation is defined as the evolution of ecological and phenotypic diversity within a rapidly multiplying lineage. When it occurs, adaptive radiation typically follows the colonization of a new environment or the establishment of a “key innovation,” which opens new ecological niches and/or new paths for evolution.
Sergey, Gavrilets, Aaron, Vose
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New approach to far field analysis for radiation pattern estimation using FDTD method [PDF]
Serbian Journal of Electrical Engineering, 2014 In this paper an approach to efficient computation of radiation pattern in FDTD simulation environment is presented. A necessary large distance from the radiating object is achieved by multigrid space discretization with unilaterally connected ...
Nikolić Bojana +4 more
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