Results 81 to 90 of about 67,587 (268)
Broadband and Enhanced Second‐Harmonic Generation in Metallic 3R‐TaS2
Small, EarlyView.A pronounced and robust SHG response has been observed in metallic 3R‐TaS2. It shows broadband SH conversion from 1020 nm to 1410 nm. Moreover, compared to the sapphire substrate, 3R‐TaS2 flakes with various thicknesses on the gold substrate showed different SHG enhancement; the enhancement factors range from 2.7 to 45.5.
Ruo‐Si Chen +9 more
wiley +1 more source
Nonlinear Stability of the Bardeen–De Sitter Wormhole in f(R) Gravity
GalaxiesThis paper discusses the nonlinear stability of a thin-shell wormhole from a regular black hole in Bardeen–de Sitter spacetime in the f(R) gravity framework.
A. Eid
doaj +1 more source
eScience Symposium Reflections from Christopher Erdmann: Redefining the Librarian’s Role in eScience
Journal of eScience Librarianship, 2016 Christopher Erdmann, Head Librarian, Wolbach Library, Harvard Smithsonian Center for Astrophysics, shares his multiple experiences at the University of Massachusetts and New England Area Librarian eScience Symposium, as well as current challenges he sees
Christopher Erdmann
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Interactive Videos in Multimodal Listening Assessments: Examining Language Learners' Perspectives
TESOL Quarterly, EarlyView.Abstract The academic success of international students who speak English as a second language (L2) hinges on their ability to effectively communicate and comprehend information in English, which requires well‐developed listening skills. Given that real‐world listening mostly involves processing both auditory and visual information, incorporating ...
Shanshan He, Ruslan Suvorov
wiley +1 more source
The diagnostics and laser infrastructure at the Soft X‐ray Port of the European XFEL
Journal of Synchrotron Radiation, EarlyView.The diagnostics and laser infrastructure of the Soft X‐ray Port (SXP) at the European X‐ray Free Electron Laser are presented.The diagnostics and laser infrastructure of the Soft X‐ray Port (SXP) at the European X‐ray Free Electron Laser are presented.
Patrik Grychtol +7 more
wiley +1 more source
Galaxies, 2017 We study the spin current tensor of a Dirac particle at accelerations close to the upper limit introduced by Caianiello. Continual interchange between particle spin and angular momentum is possible only when the acceleration is time-dependent.
Giorgio Papini
doaj +1 more source
The Great Cosmic Silence: What Does the Fermi Paradox Tell About the Future of Humanity?
Global Policy, EarlyView.ABSTRACT This article examines how institutional time horizons shape the long‐term survival prospects of human technological civilisation. While research on global catastrophic and existential risks has expanded, the temporal structures of political‐economic institutions remain underexamined.
Heikki Patomäki
wiley +1 more source
Light, Gravity and Matter (with emphasis on thermo-gravity waves) [PDF]
INCAS BulletinWhat are light, gravity, and regenerating matter? Where do they originate and where do they go? The answers to these questions lie in one of the most powerful equations ever discovered: Euler's formula (i.e., complex analysis).
Horia DUMITRESCU +2 more
doaj +1 more source
Publications of the Astronomical Society of the Pacific, 1993 1992 was an astrophysically exciting year for most of us. E-mail lines buzzed with news of the COBE anistropy, the Gallex solar-neutrino flux, a pulsar with two planets, and the remarkable isotropy of the gamma ray burst sources seen by CGRO. Meanwhile, more routine work continued on problems like star formation that have been around for decades and ...
openaire +3 more sources
ReMoDe – Recursive modality detection in distributions of ordinal data
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract The detection of the number of modes in distributions of ordinal data is relevant for applied researchers across disciplines, from uncovering polarization to detecting incidence groups in clinical symptom scales. Yet, established modality detection methods are either purely descriptive or not developed for ordinal data.
Madlen Hoffstadt +3 more
wiley +1 more source