Results 51 to 60 of about 2,551 (257)

A Linear‐to‐Linear Cross‐Polarization Conversion q‐BIC Metasurface for Transmission Mode Mid‐Infrared Spectral Filtering

open access: yesLaser &Photonics Reviews, EarlyView.
Manipulating the ultranarrow linewidth spectral features of quasi bound states in the continuum is challenging. A metasurface supporting linear‐to‐linear cross‐polarization coupling efficiency surpassing 25% is proposed to address the issue. Less than 100 nm linewidth is achieved, enabling the device to be applied to wavelength‐selective polarization ...
Shuhao Wu   +5 more
wiley   +1 more source

No App, No Entry: Conceptualizing Digital Technology Captivity in Service Access

open access: yesPsychology &Marketing, EarlyView.
ABSTRACT We introduce Digital Technology Captivity (DTC), a form of consumer vulnerability that arises when digital technologies become the mandatory gateway to essential services. When access is tied to systems that feel unfamiliar, complex, or intimidating—and when preferred alternatives are limited—consumers may experience heightened vulnerability ...
Carolyn Wilson‐Nash   +4 more
wiley   +1 more source

Simplifying coefficients in differential equations associated with higher order Bernoulli numbers of the second kind

open access: yesAIMS Mathematics, 2019
In the paper, by virtue of the Faà di Bruno formula, some properties of the Bell polynomials of the second kind, and an inversion formula for the Stirling numbers of the first and second kinds, the authors establish meaningfully and significantly two ...
Feng Qi, Da-Wei Niu, Bai-Ni Guo
doaj   +1 more source

The r-central factorial numbers with even indices

open access: yesAdvances in Difference Equations, 2020
In this paper, we introduce the r-central factorial numbers with even indices of the first and second kind as extended versions of the central factorial numbers with even indices of both kinds.
F. A. Shiha
doaj   +1 more source

Approximation of Discontinuous Functions by Positive Linear Operators. A Probabilistic Approach

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We obtain approximation results for general positive linear operators satisfying mild conditions, when acting on discontinuous functions and absolutely continuous functions having discontinuous derivatives. The upper bounds, given in terms of a local first modulus of continuity, are best possible, in the sense that we can construct particular ...
J.A. Adell   +2 more
wiley   +1 more source

New type of degenerate Daehee polynomials of the second kind

open access: yesAdvances in Difference Equations, 2020
Recently, Kim and Kim (Russ. J. Math. Phys. 27(2):227–235, 2020) have studied new type degenerate Bernoulli numbers and polynomials by making use of degenerate logarithm. Motivated by (Kim and Kim in Russ. J. Math. Phys. 27(2):227–235, 2020), we consider
Sunil Kumar Sharma   +3 more
doaj   +1 more source

The higher-order type 2 Daehee polynomials associated with p-adic integral on ℤp

open access: yesApplied Mathematics in Science and Engineering, 2022
In this paper, the higher-order type 2 Daehee polynomials are introduced and some of their relations and properties are derived. Then, some p-adic integral representations of not only higher-order type 2 Daehee polynomials and numbers but also type 2 ...
Waseem Ahmad Khan   +3 more
doaj   +1 more source

Culture, Community, and Development: Unpacking the ‘Socio‐Cultural Milieu Dynamics’ of Solomon Islands and Their Influence on Australia's Aid Localisation

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT Using public ethnography anchored in the post‐development theory and interpretivist epistemological paradigm, this study examines what we term the ‘socio‐cultural milieus dynamics’ (SCMD) of the Solomon Islands (SI) and how these shape meaning, discourse, and practice in ways that influence Australia's aid localisation efforts and aid outcomes.
Mark Opoku Amankwa   +5 more
wiley   +1 more source

On degenerate multi-poly-derangement polynomials and numbers

open access: yesApplied Mathematics in Science and Engineering
The problem of counting derangements was begun in 1708 by Pierre R[Formula: see text]mond de Montmort (see [Carlitz. The number of derangements of a sequence with given specification. Fibonacci Quart. 1978;16:255–258], [Clarke and Sved.
Sang Jo Yun, Jin-Woo Park
doaj   +1 more source

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