We present high-resolution (R ≃ 18, 000), high signal-to-noise 2 μm spectra of two luminous, X-ray flaring Class I protostars in the ρ Ophiuchi cloud acquired with the NIRSPEC spectrograph of the Keck II telescope. We present the first spectrum of a highly veiled, strongly accreting protostar which shows photospheric absorption features and demonstrates the stellar nature of its central core. W...

Beckmann's theory of scattering from rough surfaces is applied to obtain, from the experimental veiling glare functions, a diffuser that when placed at the pupil plane would produce the same scattering halo as the ocular media. This equivalent diffuser is introduced in a schematic eye model, and its influence on the point-spread function and the modulation-transfer function of the eye is analyzed.

In this article I investigate why two shows from different television genres in countries resort to nearly identical costume choices convey villainy. argue that the directors, writers, and designers for US science fiction show Stargate SG1 BBC's Merlin use orientalist tropes of veil as exotic, oppressed or threatening costumes their non-Muslim characters because centuries-long association Weste...

This work describes a new device that enables the photometric evaluation of an observer’s visual field by measuring the luminance distribution. To provide an example of the applications, we have obtained the equivalent veiling luminance for different directions of the observer’s line of vision. The results enable us to compare different luminous environments from direct measurements, without ha...

Oncoming headlights sometimes cause disability glare that may obscure driver’s vision, both foveal and peripheral. The effects of disability glare on foveal vision have been investigated by many researchers for about 70 years and are generally specified by equivalent veiling luminance (e.g. Stiles and Crawford, 1937). However, few researchers have studied how disability glare impairs peripheral...

normal. (iv) Bulbar conjunctiva was quite normal. V the upper fornix a whitish swelling of the size of three-quarter of an inch by half an inch was Been, this swelling became much more marked on everting e upper lid when it was seen extending on the uine spect of the upper lid to about one-quarter of an in? Jove the lid margin and above the limbus. This veiling was cystic in feeling. (vi) Rest ...

Context. Veiling is ubiquitous at different wavelength ranges in classical T Tauri stars. However, the origin of veiling infrared (IR) domain not well understood present. The accretion spot alone enough to explain shallow photospheric IR lines accreting systems, suggesting that another source contributing near-infrared (NIR). inner disk often quoted as additional emitting meant veiling. Aims. I...

Purpose As the vitamin D status of Algerian postmenopausal women was poorly described, this cross-sectional study investigated the prevalence of low vitamin D status in a sample population. Secondarily, predictive factors of this hypovitaminosis D were explored. Methods All the 336 selected women ≥ 45 years from Douera were interviewed to get anthropometric and lifestyle data, reproductive an...