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Showing 1 to 12 of 39 entries
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Enhancing ultraviolet spontaneous emission with a designed quantum vacuum: erratum.

Optics express

McArthur D, Hourahine B, Papoff F.
PMID: 29041771
Opt Express. 2017 Aug 21;25(17):20950-20951. doi: 10.1364/OE.25.020950.

We present a correction to parts of Fig. 5, Fig. 6 and Fig. 7, relating to the Purcell factors and Lamb shifts, due to an incorrect renormalization used in our custom Fortran code. The resulting corrections to some of...

Plasmon modes in single gold nanodiscs.

Optics express

Imura K, Ueno K, Misawa H, Okamoto H, McArthur D, Hourahine B, Papoff F.
PMID: 24921339
Opt Express. 2014 May 19;22(10):12189-99. doi: 10.1364/OE.22.012189.

Optical properties of single gold nanodiscs were studied by scanning near-field optical microscopy. Near-field transmission spectra of a single nanodisc exhibited multiple plasmon resonances in the visible to near-infrared region. Near-field transmission images observed at these resonance wavelengths show...

Demand-Driven Control of Root ATP Sulfurylase Activity and SO42- Uptake in Intact Canola (The Role of Phloem-Translocated Glutathione).

Plant physiology

Lappartient AG, Touraine B.
PMID: 12226281
Plant Physiol. 1996 May;111(1):147-157. doi: 10.1104/pp.111.1.147.

The activity of ATP sulfurylase extracted from roots of intact canola (Brassica napus L. cv Drakkar) increased after withdrawal of the S source from the nutrient solution and declined after refeeding SO42- to S-starved plants. The rate of SO42-...

Arabidopsis Growth-Promotion and Root Architecture Responses to the Beneficial Rhizobacterium .

Plants (Basel, Switzerland)

Kechid M, Desbrosses G, Gamet L, Castaings L, Varoquaux F, Djekoun A, Touraine B.
PMID: 35009131
Plants (Basel). 2022 Jan 04;11(1). doi: 10.3390/plants11010128.

No abstract available.

Kikuchi pattern simulations of backscattered and transmitted electrons.

Journal of microscopy

Winkelmann A, Nolze G, Cios G, Tokarski T, Bała P, Hourahine B, Trager-Cowan C.
PMID: 34275156
J Microsc. 2021 Nov;284(2):157-184. doi: 10.1111/jmi.13051. Epub 2021 Aug 09.

We discuss a refined simulation approach which treats Kikuchi diffraction patterns in electron backscatter diffraction (EBSD) and transmission Kikuchi diffraction (TKD). The model considers the result of two combined mechanisms: (a) the dynamical diffraction of electrons emitted coherently from...

Supporting trail-blazing: A systematic review of the factors that facilitate or inhibit the implementation of new nursing roles: the experiences of UK consultant nurses.

JBI library of systematic reviews

Hourahane G, West N, Barnes R, Rees S, Bowyer A, Dundon J, Allen D.
PMID: 27820543
JBI Libr Syst Rev. 2012;10(50):3146-3294. doi: 10.11124/jbisrir-2012-21.

BACKGROUND: If emerging 'trail-blazers', such as the consultant nurse, are to be successful in developing and sustaining new ways of working then factors that support or inhibit new role developments need identification. There is a growing body of evaluative...

Determining GaN Nanowire Polarity and its Influence on Light Emission in the Scanning Electron Microscope.

Nano letters

Naresh-Kumar G, Bruckbauer J, Winkelmann A, Yu X, Hourahine B, Edwards PR, Wang T, Trager-Cowan C, Martin RW.
PMID: 31035764
Nano Lett. 2019 Jun 12;19(6):3863-3870. doi: 10.1021/acs.nanolett.9b01054. Epub 2019 May 13.

The crystal polarity of noncentrosymmetric wurtzite GaN nanowires is determined nondestructively in the scanning electron microscope using electron backscatter diffraction (EBSD). The impact of the nanowire polarity on light emission is then investigated using cathodoluminescence (CL) spectroscopy. EBSD can...

Effect of Phloem-Translocated Malate on NO(3) Uptake by Roots of Intact Soybean Plants.

Plant physiology

Touraine B, Muller B, Grignon C.
PMID: 16668978
Plant Physiol. 1992 Jul;99(3):1118-23. doi: 10.1104/pp.99.3.1118.

In soybean (Glycine max L. Merr. cv Kingsoy), NO(3) (-) assimilation in leaves resulted in production and transport of malate to roots (B Touraine, N Grignon, C Grignon [1988] Plant Physiol 88: 605-612). This paper examines the significance of...

Treatment of collinear and noncollinear electron spin within an approximate density functional based method.

The journal of physical chemistry. A

Köhler C, Frauenheim T, Hourahine B, Seifert G, Sternberg M.
PMID: 17428041
J Phys Chem A. 2007 Jul 05;111(26):5622-9. doi: 10.1021/jp068802p. Epub 2007 Apr 12.

We report benchmark calculations of the density functional based tight-binding method concerning the magnetic properties of small iron clusters (Fe2 to Fe5) and the Fe13 icosahedron. Energetics and stability with respect to changes of cluster geometry of collinear and...

DFTB+, a sparse matrix-based implementation of the DFTB method.

The journal of physical chemistry. A

Aradi B, Hourahine B, Frauenheim T.
PMID: 17567110
J Phys Chem A. 2007 Jul 05;111(26):5678-84. doi: 10.1021/jp070186p. Epub 2007 Jun 14.

A new Fortran 95 implementation of the DFTB (density functional-based tight binding) method has been developed, where the sparsity of the DFTB system of equations has been exploited. Conventional dense algebra is used only to evaluate the eigenproblems of...

PGPR-Arabidopsis interactions is a useful system to study signaling pathways involved in plant developmental control.

Plant signaling & behavior

Desbrosses G, Contesto C, Varoquaux F, Galland M, Touraine B.
PMID: 19794852
Plant Signal Behav. 2009 Apr;4(4):321-3. doi: 10.4161/psb.4.4.8106.

No abstract available.

DFTB+, a software package for efficient approximate density functional theory based atomistic simulations.

The Journal of chemical physics

Hourahine B, Aradi B, Blum V, Bonafé F, Buccheri A, Camacho C, Cevallos C, Deshaye MY, Dumitrică T, Dominguez A, Ehlert S, Elstner M, van der Heide T, Hermann J, Irle S, Kranz JJ, Köhler C, Kowalczyk T, Kubař T, Lee IS, Lutsker V, Maurer RJ, Min SK, Mitchell I, Negre C, Niehaus TA, Niklasson AMN, Page AJ, Pecchia A, Penazzi G, Persson MP, Řezáč J, Sánchez CG, Sternberg M, Stöhr M, Stuckenberg F, Tkatchenko A, Yu VW, Frauenheim T.
PMID: 32241125
J Chem Phys. 2020 Mar 31;152(12):124101. doi: 10.1063/1.5143190.

DFTB+ is a versatile community developed open source software package offering fast and efficient methods for carrying out atomistic quantum mechanical simulations. By implementing various methods approximating density functional theory (DFT), such as the density functional based tight binding...

Showing 1 to 12 of 39 entries