Results 91 to 100 of about 210,731 (289)

A two-dimensional singular integral equation of diffraction theory

open access: yes, 1964
(2) k(x) = (47TT)exp(-i/3r) with r = + ( x ? + 4 ) 1 / 2 and 0 complex [Im(j8) < 0 ] . In earlier physical investigations, we had encountered variants of (1) in which the domains of integration and validity were (a) two contiguous quadrants (see [4]) or (
J. Radlow
semanticscholar   +1 more source

Making teaching an attractive profession: What are the challenges and opportunities for minority ethnic teachers in England?

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This paper explores the challenges and opportunities surrounding the recruitment and retention of minority ethnic teachers in England. Drawing on interview data from 33 teachers and school leaders of diverse ethnic backgrounds, it investigates whether racialised barriers identified in earlier research have shifted in the current context of ...
Antonina Tereshchenko   +5 more
wiley   +1 more source

Electrodynamics of Carbon Nanotubes with Non-Local Surface Conductivity

open access: yesApplied Sciences
A new framework that can be utilized for the electrodynamics of carbon nanotubes (CNTs) with non-local surface conductivity (spatial dispersion) is presented.
Tomer Berghaus   +3 more
doaj   +1 more source

Civilising pedagogies: An ethnography of instructional and regulative discourses in government schools in Delhi, India

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Over the years, surveys and data on learning outcomes have consistently shown inadequate levels of learning in schools in India, witnessing a further decline in recent years. Studies within the sociology of education have consistently highlighted the overarching role of class and caste on learning outcomes in schools. Neoliberal policy reforms
Akshita Rawat
wiley   +1 more source

A Periodic Extension to the Fokas Method for Acoustic Scattering by an Infinite Grating

open access: yesAcoustics
The Fokas method (also known as the unified transform method) is used to investigate acoustic scattering by thin, infinite grating by extending the methodology to apply to spatially periodic domains. Infinite grating is used to model a perforated screen,
Shiza B. Naqvi, Lorna J. Ayton
doaj   +1 more source

‘It's all very well having a diverse curriculum, but if there is no curriculum, it can be as diverse as you like’: Precarity and decolonising in the neoliberal UK higher education system

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Drawing upon interview research across two academic departments as part of the early stages of a ‘decolonise the curriculum’ initiative at a Southern UK university, this study highlights a growing gulf between policy and practice in efforts to address systemic racial inequalities in UK universities. A reliance upon precarious labour, a culture
Triona Fitton   +4 more
wiley   +1 more source

Elimination of distortions of weak images of astronomical objects on the example of Saturn, Jupiter and their satellites

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
Methods and algorithms for restoring smeared and noisy images by numerically solving integral equations (IE) are considered. The algorithms are illustrated by the restoration of distorted images of celestial bodies using the example of images of Saturn ...
V. S. Sizikov, N. G. Rushchenko
doaj   +1 more source

On the probabilistic solution of the Cauchy problem for parabolic equations

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2017
The questions about finding (conditional) mathematical expectations, the joint and marginal distribution of different functionals from the trajectories of random processes, expressed through the process itself, the ordinary stochastic integral and the ...
N. Akanbay, Z. Suleimenova
doaj  

The myth of the metabolic baseline: sleep–wake cycles undermine a foundational assumption in organismal biology

open access: yesBiological Reviews, EarlyView.
ABSTRACT Basal and standard metabolic rate (BMR and SMR) are cornerstones of physiological ecology and are assumed to be relatively fixed intrinsic properties of organisms that represent the minimum energy required to sustain life. However, this assumption is conceptually flawed. Many core maintenance processes underlying SMR are temporally partitioned
Helena Norman   +4 more
wiley   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

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