Results 81 to 90 of about 771,659 (382)

Unlearning and Deradicalizing From White Christian Nationalism: Implications for Adult Learning and Education

New Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Since the January 2021 attack on the US Capitol, the influence of White Christian nationalism (WCN) has become even more pronounced and concerning. Adult educators and the public need a better understanding of whether and how WCN can be unlearned, and the roles ordinary citizens and adult educators can play in this process.
Esther Prins
wiley   +1 more source

What Fraction of Gravitational Lens Galaxies Lie in Groups?

, 2000
We predict how the observed variations in galaxy populations with environment affect the number and properties of gravitational lenses in different environments. Two trends dominate: lensing strongly favors early-type galaxies, which tend to lie in dense
Ann I. Zabludoff, Browne I. W. A., Charles R. Keeton, Daniel Christlein, Fukugita M., Jaunsen A. O., Kochanek C. S., Mao S., Quast R., Rix H.-W., van Dokkum P. G., Wang Y.   +11 more
core   +1 more source

Stereotactic radiotherapy for metastatic brain tumors: A comparative analysis of dose distributions among VMAT, Helical TomoTherapy, CyberKnife, Gamma Knife, and ZAP‐X

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki, Masahide Saito, Ryutaro Nomura, Hikaru Nemoto, Naoto Yanagisawa, Ryuma Sawada, Zennosuke Mochizuki, Naoki Sano, Hiroshi Onishi, Hiroshi Takahashi   +9 more
wiley   +1 more source

Weak Gravitational Lensing of the CMB [PDF]

Phys.Rept. 429 (2006) 1-65, 2006
Weak gravitational lensing has several important effects on the cosmic microwave background (CMB): it changes the CMB power spectra, induces non-Gaussianities, and generates a B-mode polarization signal that is an important source of confusion for the signal from primordial gravitational waves.
arxiv   +1 more source

Research on the Influence of Cleaning Products on the Quality of Optical Lens Surfaces

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science
The paper presents research on the evaluation of the influence of maintenance products, such as cleaning solutions, on the quality of lenses. The research analysed the effects of these products on scratch resistance and image clarity. The eyeglass lenses
Beatrice Daniela TUDOR, Iustina BĂBUȘANU   +1 more
doaj   +1 more source

LED-based indoor positioning system using novel optical pixelation technique

Healthcare Technology Letters, 2019
At present, about 47 million people worldwide have Alzheimer's disease (AD), and because there is no treatment currently available to cure AD, people with AD (PWAD) are cared for.
Olaoluwa R. Popoola, Sinan Sinanović, Sinan Sinanović, Roberto Ramirez-Iniguez, Wasiu O. Popoola   +4 more
doaj   +1 more source

Semi‐automated hippocampal avoidance whole‐brain radiotherapy planning

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Hippocampal avoidance whole‐brain radiotherapy (HA‐WBRT) is designed to spare cognitive function by reducing radiation dose to the hippocampus during the treatment of brain metastases. Current manual planning methods can be time‐consuming and may vary in quality, necessitating the development of automated approaches to streamline ...
Dong Joo Rhee, Subha Perni, Kelly J. Perrin, Kevin E. Casey, Alexandra O. Leone, Callistus M. Nguyen, Laurence E. Court, He Wang, Xin Wang, Eun Young Han   +9 more
wiley   +1 more source

A search for edge-on galaxy lenses in the CFHT Legacy Survey

, 2010
[ABRIDGED] The new generation of wide field optical imaging like the Canada France Hawaii Telescope Legacy Survey (CFHTLS) enables discoveries of all types of gravitational lenses present in the sky.
Auger, B. Fort, Bartelmann, Bartelmann, Bertin, Bolton, Bolton, Bolton, Bolzonella, Browne, Cabanac, Castander, Chae, Chieregato, Coleman, Coupon, Covone, de Blok, de Blok, Donato, Dutton, Faure, Féron, Gavazzi, H. Tu, Ibata, J. F. Sygnet, Jaunsen, Keeton, Keeton, Koopmans, Kranz, Kubo, Leauthaud, Maller, Marshall, Marshall, McGaugh, Moustakas, Newton, Oguri, Park, Persic, Pizagno, R. Gavazzi, Refregier, Rubin, Shin, Trott, Trott, Tully, Turner, van Albada, Willis, Willis, Winn   +55 more
core   +2 more sources

A millimeter-wave antireflection coating for cryogenic silicon lenses [PDF]

, 2007
We have developed and tested an antireflection (AR) coating method for silicon lenses at cryogenic temperatures and millimeter wavelengths. Our particular application is a measurement of the cosmic microwave background.
Fowler, J. W., Halpern, M., Henry, R., Lau, J. M., Leong, J., Marriage, T. A., Marsden, D., Marsden, G., Page, L., Wishnow, E., Wollck, E.   +10 more
core   +2 more sources

Devil’s lenses

Optics Express, 2007
In this paper we present a new kind of kinoform lenses in which the phase distribution is characterized by the "devil's staircase" function. The focusing properties of these fractal DOEs coined devil's lenses (DLs) are analytically studied and compared with conventional Fresnel kinoform lenses.
Fernando Giménez, Walter D. Furlan, Juan A. Monsoriu, Genaro Saavedra   +3 more
openaire   +3 more sources