Results 1 to 10 of about 22,637 (304)

Reversible femtosecond laser-assisted myopia correction: a non-human primate study of lenticule re-implantation after refractive lenticule extraction. [PDF]

PLoS ONE, 2013
LASIK (laser-assisted in situ keratomileusis) is a common laser refractive procedure for myopia and astigmatism, involving permanent removal of anterior corneal stromal tissue by excimer ablation beneath a hinged flap.
Andri K Riau, Romesh I Angunawela, Shyam S Chaurasia, Wing S Lee, Donald T Tan, Jodhbir S Mehta   +5 more
doaj   +1 more source

The utility of MRI radiological biomarkers in determining intracranial pressure

Scientific Reports
Intracranial pressure (ICP) is a physiological parameter that conventionally requires invasive monitoring for accurate measurement. Utilising multivariate predictive models, we sought to evaluate the utility of non-invasive, widely accessible MRI ...
Anand S. Pandit, Musa China, Raunak Jain, Arif H. B. Jalal, Maria Jelen, Shivani B. Joshi, Crystallynn Skye, Zakee Abdi, Yousif Aldabbagh, Mohammad Alradhawi, Ptolemy D. W. Banks, Martyna K. Stasiak, Emily B. C. Tan, Fleur C. Yildirim, James K. Ruffle, Linda D’Antona, Hasan Asif, Lewis Thorne, Laurence D. Watkins, Parashkev Nachev, Ahmed K. Toma   +20 more
doaj   +1 more source

Reversible uptake of molecular oxygen by heteroligand Co(II)–l-α-amino acid–imidazole systems: equilibrium models at full mass balance

Chemistry Central Journal, 2017
Background The paper examines Co(II)–amino acid–imidazole systems (where amino acid = l-α-amino acid: alanine, asparagine, histidine) which, when in aqueous solutions, activate and reversibly take up dioxygen, while maintaining the structural scheme of ...
Marek Pająk, Magdalena Woźniczka, Andrzej Vogt, Aleksander Kufelnicki   +3 more
doaj   +1 more source

Errors in the method of line-reversal

Combustion and Flame, 1967
It is shown that with a favourable experimental design the random error in the temperature measurement of hot gases with the method of line-reversal is of the order of 1 deg. K at about 2500°K. A number of Systematic errors, each of the order of 10 deg.K, are considered.
openaire   +2 more sources

Robust Reversible Watermarking Algorithm for Color Images Based on Trinion Exponential Fourier Moments [PDF]

Jisuanji gongcheng
Existing color image watermarking algorithms are applied between channels that are independent of each other, ignoring the intrinsic correlation between the channels.
GAO Jiayue, LIU Xilin, SUN Jingyu
doaj   +1 more source

Texture-aware reversible information embedding in medical images using attention-driven dual-branch deep prediction

Franklin Open
This work proposes a reversible information embedding (RIE) technique for grayscale medical images, aiming to provide secure and fully reversible data concealment without compromising diagnostic integrity.
K. Sai SivaKesava Reddy, Padigela Suraj, Ravi Uyyala, Padmavathi Vurubindi, Neeraj Kumar Sharma, Sriramulu Bojjagani   +5 more
doaj   +1 more source

A reversible and robust hybrid image steganography framework using radon transform and integer lifting wavelet transform

Scientific Reports
This study introduces a reliable and reversible image steganography framework that integrates Radon Transform (RT) and Integer Lifting Wavelet Transform (ILWT) to enhance security, imperceptibility, and robustness.
B. M. El-den, Walid Raslan
doaj   +1 more source

The gradual loss of vision

South African Family Practice, 2013
Gradual loss of vision is a clinical problem that is encountered fairly regularly in most primary healthcare settings. Patients present with chronic, slowly progressive and generally painless visual loss.
N. du Toit
doaj   +1 more source

On reconstruction of signed permutations distorted by reversal errors

Discrete Mathematics, 2008
AbstractThe problem of reconstructing signed permutations on n elements from their erroneous patterns distorted by reversal errors is considered in this paper. A reversal is the operation of taking a segment of the signed permutation, reversing it, and flipping the signs of its elements.
openaire   +1 more source

Reversibility analysis of an experimental heat and mass recovery adsorption cycle with PCM thermal energy storage

Next Energy
This study analyzed a reversibility scenario and state equilibrium of an experimental dual-stage dual-bed adsorption chiller silica gel-water pair with phase change material (PCM) thermal energy storage.
Tagne Takote Brice Clausel, Cosmas Anyanwu, Fidelis Abam, Mkpamdi Eke, Onyekwere Ojike, Charity Mokom, Ozokolie Sampson Chukwunonso   +6 more
doaj   +1 more source