Results 101 to 110 of about 58,276 (196)

A New Digital Watermarking Algorithm Using Combination of Least Significant Bit (LSB) and Inverse Bit

, 2011
In this paper, we introduce a new digital watermarking algorithm using least significant bit (LSB). LSB is used because of its little effect on the image.
Bamatraf, Abdullah, Ibrahim, Rosziati, Salleh, Mohd. Najib Mohd.   +2 more
core  

Management of retinopathy of prematurity in a tertiary referral neonatal intensive care unit: Treatment rates and the impact of outsourcing laser therapy

Acta Ophthalmologica, EarlyView.
Abstract Purpose To describe the treatment rate for retinopathy of prematurity (ROP) at a tertiary referral neonatal intensive care unit (NICU) in the south‐western region of the Netherlands. In addition, we evaluated the impact of outsourcing laser treatment, implemented in 2018, by comparing treatment characteristics from 3 years prior and 3 years ...
L. A. Derks, H. R. Taal, S. E. Loudon, I. K. M. Reiss, J. R. Vingerling, A. M. Tjiam   +5 more
wiley   +1 more source

Low surface brightness galaxies [PDF]

A program to investigate the properties of low surface brightness (LSB) galaxies involving surface photometry in U, B, V, R, I, and H-alpha, HI imaging with the Westerbork Synthesis Radio Telescope (WSRT) and the very large array (VLA) and ...
Bothun, G. D., Deblok, W. J. G., Mcgaugh, S. S., Vanderhulst, J. M.   +3 more
core   +1 more source

Do low surface brightness galaxies have dense disks?

, 2010
The disk masses of four low surface brightness galaxies (LSB) were estimated using marginal gravitational stability criterion and the stellar velocity dispersion data which were taken from Pizzella et al., 2008 [1].
A. G. Morozov, A. Pizzella, A. S. Saburova, A. V. Khoperskov, A. V. Zasov, B. Fuchs, B. Fuchs, D. Bizyaev, E. F. Bell, F. S. Masset, G. Bothun, H.-c. Lee, J. Binney, J. F. Navarro, K. O’Neil, L. D. Matthews, L. Mattsson, P. Palunas, R. Bottema, R. Bottema, R. Kuzio de Naray, R. R. Rafikov, S. A. Kassin, S. Boissier, W. J. G. Blok de, W. J. G. Blok de   +25 more
core   +1 more source

Using continuous visual stimulus tracking for detecting visual function loss due to acquired brain injury

Acta Ophthalmologica, EarlyView.
Abstract Purpose Acquired brain injury (ABI) may cause homonymous visual field (VF) defects. Standard automated perimetry (SAP) is the gold standard for VF assessment, but it can be challenging in ABI. Continuous visual stimulus tracking (SONDA; Standardised Oculomotor and Neurological Disorders Assessment) simplifies the perimetric task to following a
A. C. L. Vrijling, M. J. de Boer, R. J. Renken, J. B. C. Marsman, J. Heutink, F. W. Cornelissen, N. M. Jansonius   +6 more
wiley   +1 more source

Risk factors for the development of subretinal fluid in the fellow eyes of patients with chronic central serous chorioretinopathy

Acta Ophthalmologica, EarlyView.
Abstract Purpose To assess the risk of subretinal fluid (SRF) development in the fellow eye of chronic central serous chorioretinopathy (cCSC) patients with unilateral SRF at baseline. Methods Medical records of 334 presumed cCSC patients were retrospectively reviewed.
Helena M. A. Feenstra, Tahir Cakar, Joost Brinks, Camiel J. F. Boon, Elon H. C. van Dijk   +4 more
wiley   +1 more source

The Effects of Starburst Activity on Low Surface Brightness Disk Galaxies

, 1998
Although numerous simulations have been done to understand the effects of intense bursts of star formation on high surface brightness galaxies, few attempts have been made to understand how localized starbursts would affect both the color and surface ...
Dalcanton J. J., De Blok W., De Blok W., De Jong R. S., G. D. Bothun, Guiderdoni B., J. Schombert, Karen O'Neil, Mo H. J., Oey M. S., Schaller G., Skillman E. D.   +11 more
core   +1 more source

Long‐term follow‐up of chronic central serous chorioretinopathy patients receiving oral eplerenone and half‐dose photodynamic therapy in the SPECTRA trial: SPECTRA trial report No. 4

Acta Ophthalmologica, EarlyView.
Abstract Purpose Assessing the 24‐month treatment outcome of half‐dose photodynamic therapy (PDT) or oral eplerenone in chronic central serous chorioretinopathy (cCSC). Methods Multicentre randomized clinical trial included cCSC patients from the SPECTRA trial who were randomized to receive half‐dose PDT or oral eplerenone.
Helena M. A. Feenstra, Issam El Mansori, Thomas J. van Rijssen, Roula Tsonaka, Roselie M. H. Diederen, Carel B. Hoyng, Reinier O. Schlingemann, Camiel J. F. Boon, Elon H. C. van Dijk   +8 more
wiley   +1 more source

An improved digital watermarking algorithm using combination of least significant bit (LSB) and inverse bit [PDF]

, 2012
Software watermarking is one of the most important methods for protecting copyrights and authenticating ownership; which can be used to prevent software piracy.
Abdullah Bamatraf, Abdullah Omar
core  

Damped Lyman-alpha absorption from a nearby Low Surface Brightness galaxy

, 2000
Ground-based & HST images of the nearby galaxy SBS 1543+593 (z=0.009) show it to be a Low Surface Brightness (LSB) galaxy with a central surface brightness of mu_B(0)=23.2 mag/arcsec-2 and scale length 0.9 h-1 kpc, values typical for the local LSB galaxy
David V. Bowen, de Blok W. J. G., de Blok W. J. G., Edward B. Jenkins, Le Brun V., Reimers D., Todd M. Tripp, Wakker B. P.   +7 more
core   +1 more source