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Showing 1 to 12 of 244 entries
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Maritime undergraduate students: career expectations and choices

Undergraduate training programs

Dragomir C, Ng AKY, Tang YM.
GSID: GLU0_swJuW4J
YY Lau, C Dragomir, YM Tang, AKY Ng - Sustainability, 2021 - mdpi.com

… of this study are useful for maritime education and training (MET) providers during the design and marketing campaign of the educational program to attract students. Additionally, the …

Direct cost for initial management of prostate cancer: a systematic review.

Current oncology (Toronto, Ont.)

Sanyal C, Aprikian AG, Chevalier S, Cury FL, Dragomir A.
PMID: 24311952
Curr Oncol. 2013 Dec;20(6):e522-31. doi: 10.3747/co.20.1630.

BACKGROUND: Prostate cancer (pca) is the most common non-skin cancer among men in Canada and other Western countries. Increased prevalence and higher cost of newer treatments have led to a significant rise in the economic burden of pca. The...

Magnetic hyperbolic optical metamaterials.

Nature communications

Kruk SS, Wong ZJ, Pshenay-Severin E, O'Brien K, Neshev DN, Kivshar YS, Zhang X.
PMID: 27072604
Nat Commun. 2016 Apr 13;7:11329. doi: 10.1038/ncomms11329.

Strongly anisotropic media where the principal components of electric permittivity or magnetic permeability tensors have opposite signs are termed as hyperbolic media. Such media support propagating electromagnetic waves with extremely large wave vectors exhibiting unique optical properties. However, in...

Inscription of fiber Bragg gratings by ultraviolet femtosecond radiation.

Optics letters

Dragomir A, Nikogosyan DN, Zagorulko KA, Kryukov PG, Dianov EM.
PMID: 14649931
Opt Lett. 2003 Nov 15;28(22):2171-3. doi: 10.1364/ol.28.002171.

We report on what is to our knowledge the first fabrication of fiber Bragg gratings by UV femtosecond radiation. The Bragg gratings, with photoinduced refractive-index modulation up to 1.92 x 10(-3) in H2-loaded SMF-28 and up to 1.05 x...

Experimental reconstruction of nonlocal response of thermal nonlinear optical media.

Optics letters

Minovich A, Neshev DN, Dreischuh A, Krolikowski W, Kivshar YS.
PMID: 17572718
Opt Lett. 2007 Jun 15;32(12):1599-601. doi: 10.1364/ol.32.001599.

We study experimentally and theoretically the nonlocal response of a medium with thermal nonlinearity and show that despite its inherently infinite range it can be accurately characterized by a well-defined nonlocal response function. We retrieve the shape of this...

Refractive-index profiling of optical fibers with axial symmetry by use of quantitative phase microscopy.

Optics letters

Roberts A, Ampem-Lassen E, Barty A, Nugent KA, Baxter GW, Dragomir NM, Huntington ST.
PMID: 18033441
Opt Lett. 2002 Dec 02;27(23):2061-3. doi: 10.1364/ol.27.002061.

The application of quantitative phase microscopy to refractive-index profiling of optical fibers is demonstrated. Phase images of axially symmetric optical fibers immersed in index-matching fluid are obtained, and the inverse Abel transform is used to obtain the radial refractive-index...

Som-based class discovery exploring the ICA-reduced features of microarray expression profiles.

Comparative and functional genomics

Dragomir A, Mavroudi S, Bezerianos A.
PMID: 18629176
Comp Funct Genomics. 2004;5(8):596-616. doi: 10.1002/cfg.444.

Gene expression datasets are large and complex, having many variables and unknown internal structure. We apply independent component analysis (ICA) to derive a less redundant representation of the expression data. The decomposition produces components with minimal statistical dependence and...

[Not Available].

Talanta

Ghimicescu C, Stan M, Dragomir B.
PMID: 18961266
Talanta. 1973 Feb;20(2):246-8. doi: 10.1016/0039-9140(73)80278-4.

A microdetermination of iodide in waters and organic materials is based on oxidation with hydrogen peroxide to iodine which gives a blue colour with o-tolidine at pH 3.5-4.5. The sensitivity is 0.02 mug/ml.

Generation of second-harmonic conical waves via nonlinear bragg diffraction.

Physical review letters

Saltiel SM, Neshev DN, Fischer R, Krolikowski W, Arie A, Kivshar YS.
PMID: 18352187
Phys Rev Lett. 2008 Mar 14;100(10):103902. doi: 10.1103/PhysRevLett.100.103902. Epub 2008 Mar 12.

We report on the observation of second-harmonic conical waves generated in a novel geometry of the transverse excitation of an annular periodically poled nonlinear photonic structure by a fundamental Gaussian beam. We show that the conical beams are formed...

Polychromatic nonlinear surface modes generated by supercontinuum light.

Optics express

Sukhorukov AA, Neshev DN, Dreischuh A, Fischer R, Ha S, Krolikowski W, Bolger J, Mitchell A, Eggleton BJ, Kivshar YS.
PMID: 19529541
Opt Express. 2006 Nov 13;14(23):11265-70. doi: 10.1364/oe.14.011265.

We study propagation of polychromatic light near the edge of a nonlinear waveguide array. We describe simultaneous spatial and spectral beam reshaping associated with power and wavelength-dependent tunneling between the waveguides. We present experimental verifications of the effects predicted...

Photoluminescence of atomic gold and silver particles in soda-lime silicate glasses.

Nanotechnology

Eichelbaum M, Rademann K, Hoell A, Tatchev DM, Weigel W, Stößer R, Pacchioni G.
PMID: 19636156
Nanotechnology. 2008 Apr 02;19(13):135701. doi: 10.1088/0957-4484/19/13/135701. Epub 2008 Feb 26.

We report the chemistry and photophysics of atomic gold and silver particles in inorganic glasses. By synchrotron irradiation of gold-doped soda-lime silicate glasses we could create and identify unambiguously the gold dimer as a stable and bright luminescing particle...

Observation of two-dimensional nonlocal gap solitons.

Optics letters

Rasmussen PD, Bennet FH, Neshev DN, Sukhorukov AA, Rosberg CR, Krolikowski W, Bang O, Kivshar YS.
PMID: 19183636
Opt Lett. 2009 Feb 01;34(3):295-7. doi: 10.1364/ol.34.000295.

We demonstrate, both theoretically and experimentally, the existence of nonlocal gap solitons in two-dimensional periodic photonic structures with defocusing thermal nonlinearity. We employ liquid-infiltrated photonic crystal fibers and show how the system geometry can modify the effective response of...

Showing 1 to 12 of 244 entries