Results 131 to 140 of about 56,184 (324)

Generation of Optical Quasiparticles with Spin–Orbit Conversion in a Single Q‐Plate

open access: yesLaser &Photonics Reviews, EarlyView.
Spin‐Orbit conversion approach with a q‐plate for generating optical quasiparticles. ABSTRACT In this work, we detail a novel approach which can be used for the generation of optical quasiparticles. This process leverages both spin‐orbit conversion control with wavelength de‐tuning in a commercially available q‐plate.
Jingni Geng   +3 more
wiley   +1 more source

Observation of Linear and Nonlinear Light Trapping on Topological Dislocations

open access: yesLaser &Photonics Reviews, EarlyView.
Topological dislocations are global lattice defects found in various systems ranging from crystals to photonic lattices. This work reports the first observation at optical frequencies of linear modes with tunable localization bound to edge dislocations and their nonlinear counterparts ‐ dislocation solitons. These results reveal an intriguing interplay
S. K. Ivanov   +13 more
wiley   +1 more source

Free‐Breathing Magnetization Transfer Imaging of the Lung at 0.55 T Using bSTAR

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a clinically applicable method for magnetization transfer (MT) imaging of the lung at 0.55 T. Methods MT imaging of the chest was explored in healthy volunteers at 0.55 T using a self‐gated 3D half‐radial dual‐echo balanced steady‐state free precession sequence (bSTAR), a 2D multi‐slice gradient echo method (GRE) acquired in
Alexandra Braun   +5 more
wiley   +1 more source

Definitions Matter: BIPOC Nonprofits and Racial Disparities in Nonprofit Funding

open access: yesNonprofit Management and Leadership, EarlyView.
ABSTRACT BIPOC (Black, Indigenous, and People of Color) nonprofits have gained increased attention and funding; however, a lack of clear definition and identification persists. This ambiguity hinders our understanding of the BIPOC nonprofits population and racial disparities in nonprofit funding.
Shuyi Deng
wiley   +1 more source

Forbs in Viking lands: the effect of disturbing dominant graminoids on recruitment in tundra grasslands

open access: yesOikos, EarlyView.
Grasslands, by definition, are dominated by graminoids. Nevertheless, forbs also make up a substantial part of vascular plant diversity in grasslands and are important resources of mammalian herbivores. However, forb recruitment is constrained by successful dominant graminoids, limiting access to safe sites for germination.
Gerardo Celis   +5 more
wiley   +1 more source

NP-Ellipsis Patterns in Spanish Binominals: A New Empirical Observation and its Theoretical Implications

open access: yesCatalan Journal of Linguistics
In this contribution, I present new evidence against any attempt to unify pseudo-partitive/quantificational and qualitative binominals (e.g., un grupo/montón de estudiantes ‘a group/lot of students’, una mierda de departamento ‘a shit of an apartment’).
Andrés Saab
doaj   +1 more source

Response of specific leaf area to light: comparative study of a large species set

open access: yesOikos, EarlyView.
Specific leaf area (SLA) is a commonly used proxy for the leaf economy spectrum in plants, separating species with low‐cost leaves (in terms of carbon) with short lifespan and hence fast turnover from species with high‐cost and long‐lived leaves. While SLA is used mainly for interspecific comparisons, it also varies within species both ontogenetically ...
Tomáš Herben   +2 more
wiley   +1 more source

Preposition omission under English pseudogapping

open access: yesGlossa
This paper maps out patterns of preposition omission under English pseudogapping, that is, outside of the usual environment in which they have previously been explored.
Joanna Nykiel
doaj   +2 more sources

Syntactic and semantic contributions of pitch accents during sentence comprehension [PDF]

open access: yes
Syntactic, semantic, and prosodic cues all establish expectations that guide sentence comprehension. In the prosodic domain, pitch accents can assign contrastive focus and resolve a syntactically ambiguous phrase.
Friederici, A.   +3 more
core   +1 more source

Partial recovery of large seed arrival following ecological restoration in fragmented tropical rainforests

open access: yesOikos, EarlyView.
Forest restoration success depends crucially on the reinitiation of ecological processes such as seed arrival that drive natural regeneration. We know little about whether, by increasing and diversifying local seed sources to alleviate seed limitation, and attracting animal frugivores to alleviate dispersal limitation, restoration could shift seed ...
Aparna Krishnan   +6 more
wiley   +1 more source

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