Search Results - "Johnson, M N"
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Mycotoxins in a changing global environment – A review
Published in Food and chemical toxicology (01-07-2014)“…•Mycotoxins in food are unavoidable and global environmental conditions may increase mycotoxin presence in foods.•Infants and other susceptible populations…”
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2
A Multiwavelength Study to Decipher the 2017 Flare of the Blazar OJ 287
Published in The Astrophysical journal (01-10-2024)“…In 2017 February, the blazar OJ 287 underwent a period of intense multiwavelength activity. It reached a new historic peak in the soft X-ray (0.3–10 keV) band,…”
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Highly radiative nature of ultra-thin c-plane Al-rich AlGaN/AlN quantum wells for deep ultraviolet emitters
Published in Applied physics letters (11-03-2019)“…Temperature-dependent photoluminescence (PL) lifetimes were measured for a series of ultra-thin c-plane Al0.61Ga0.39N/AlN multiple quantum wells (QWs) on bulk…”
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4
High Proton Conductivity of Water Channels in a Highly Ordered Nanowire
Published in Angewandte Chemie International Edition (23-12-2011)“…A proton‐conductive material based on a crystalline assembly of trimesic acid and melamine (TMA⋅M, see picture) is reported. Because of the ordered structure…”
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Unidirectional lasing from InGaN multiple-quantum-well spiral-shaped micropillars
Published in Applied physics letters (01-09-2003)“…We report unidirectional emission from lasing in In0.09Ga0.91N/In0.01Ga0.99N multiple-quantum-well spiral micropillars. Our imaging technique shows that the…”
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Characterization and safety of uniform particle size NovaSil clay as a potential aflatoxin enterosorbent
Published in Applied clay science (01-12-2011)“…NovaSil (NS) clay, a common anti-caking agent in animal feeds, has been shown to adsorb aflatoxins and diminish their bioavailability in multiple animal…”
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Calcium montmorillonite clay reduces urinary biomarkers of fumonisin B1 exposure in rats and humans
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (2012)“…Fumonisin B 1 (FB 1 ) is often a co-contaminant with aflatoxin (AF) in grains and may enhance AF's carcinogenicity by acting as a cancer promoter. Calcium…”
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In vitro and in vivo characterization of mycotoxin-binding additives used for animal feeds in Mexico
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (01-05-2009)“…The study was conducted to characterize and compare twelve different additives distributed in Mexico as mycotoxin binders utilizing: (1) equilibrium isothermal…”
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NovaSil clay intervention in Ghanaians at high risk for aflatoxicosis: II. Reduction in biomarkers of aflatoxin exposure in blood and urine
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (01-05-2008)“…The efficacy of NovaSil clay (NS) to reduce aflatoxin (AF) biomarkers of exposure was evaluated in 656 blood samples and 624 urine samples collected from study…”
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Fabrication of thin-film InGaN light-emitting diode membranes by laser lift-off
Published in Applied physics letters (06-09-1999)“…Indium–gallium nitride (InGaN) multiple-quantum-well (MQW) light-emitting diode (LED) membranes, prefabricated on sapphire growth substrates, were created…”
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11
Resolving pm wavelength shifts in optical sensing
Published in Applied physics. B, Lasers and optics (01-03-2007)“…The reflection or transmission properties of one and two-dimensional photonic crystals are widely used for optical sensing applications. A variety of optical…”
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SN 2023ixf in Messier 101: Photo-ionization of Dense, Close-in Circumstellar Material in a Nearby Type II Supernova
Published in Astrophysical journal. Letters (01-09-2023)“…We present UV and/or optical observations and models of SN 2023ixf, a type II supernova (SN) located in Messier 101 at 6.9 Mpc. Early time ( flash )…”
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13
Shock-induced band-gap shift in GaN : Anisotropy of the deformation potentials
Published in Physical review. B, Condensed matter and materials physics (01-03-2005)Get full text
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Effect of strain and barrier composition on the polarization of light emission from AlGaN/AlN quantum wells
Published in Applied physics letters (09-01-2012)“…For AlGaN-based multi-quantum-well light emitters grown on c-plane substrates there is a tendency for the polarization of the emitted light to switch from…”
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15
Activation energies of Si donors in GaN
Published in Applied physics letters (27-05-1996)“…The electronic properties of Si donors in heteroepitaxial layers of GaN were investigated. The n-type GaN layers were grown by metalorganic chemical vapor…”
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Activation of acceptors in Mg-doped GaN grown by metalorganic chemical vapor deposition
Published in Applied physics letters (29-01-1996)“…The activation kinetics of acceptors was investigated for heteroepitaxial layers of GaN, doped with Mg. After growth, the samples were exposed to isochronal…”
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Near-bandedge cathodoluminescence of an AlN homoepitaxial film
Published in Applied physics letters (03-05-2004)“…Cathodoluminescence experiments were performed on a high-quality AlN epitaxial film grown by organometallic vapor phase epitaxy on a large single crystal AlN…”
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Large band gap bowing of InxGa1−xN alloys
Published in Applied physics letters (25-05-1998)“…Band gap measurements have been performed on strained InxGa1−xN epilayers with x⩽0.12. The experimental data indicate that the bowing of the band gap is much…”
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Phase separation in InGaN/GaN multiple quantum wells
Published in Applied physics letters (06-04-1998)“…Evidence is presented for phase separation in In0.27Ga0.73N/GaN multiple quantum wells. After annealing for 40 h at a temperature of 950 °C, the absorption…”
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NovaSil clay intervention in Ghanaians at high risk for aflatoxicosis. I. Study design and clinical outcomes
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (01-01-2008)“…A 3-month double-blind and placebo-controlled, phase IIa clinical trial was conducted in Ghana to investigate the safety, tolerance and aflatoxin-sorption…”
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