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Showing 1 to 12 of 204 entries
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A posteriori correction of camera characteristics from large image data sets.

Scientific reports

Afanasyev P, Ravelli RB, Matadeen R, De Carlo S, van Duinen G, Alewijnse B, Peters PJ, Abrahams JP, Portugal RV, Schatz M, van Heel M.
PMID: 26068909
Sci Rep. 2015 Jun 11;5:10317. doi: 10.1038/srep10317.

Large datasets are emerging in many fields of image processing including: electron microscopy, light microscopy, medical X-ray imaging, astronomy, etc. Novel computer-controlled instrumentation facilitates the collection of very large datasets containing thousands of individual digital images. In single-particle cryogenic...

Dinuclear cobalt(II) and cobalt(III) complexes of bis-bidentate napthoquinone ligands.

Dalton transactions (Cambridge, England : 2003)

Mulyana Y, Alley KG, Davies KM, Abrahams BF, Moubaraki B, Murray KS, Boskovic C.
PMID: 24306162
Dalton Trans. 2014 Feb 14;43(6):2499-511. doi: 10.1039/c3dt52811a. Epub 2013 Dec 05.

The combination of bridging bis-bidentate redox-active ligands derived from 3,3-bis-2-hydroxy-1,4-naphthoquinone (bhnqH2), ancillary ligands based on tris(2-pyridylmethyl)amine (tpa) and cobalt salts has afforded a new family of dinuclear cobalt complexes. Compounds of the complexes [Co2(bhnq)(tpa)2](2+) (1), [Co2(bhnq)(Metpa)2](2+) (2), [Co2(bhnq)(Me2tpa)2](2+) (3)...

Heterometallic 3d-4f single-molecule magnets: ligand and metal ion influences on the magnetic relaxation.

Inorganic chemistry

Langley SK, Le C, Ungur L, Moubaraki B, Abrahams BF, Chibotaru LF, Murray KS.
PMID: 25796958
Inorg Chem. 2015 Apr 06;54(7):3631-42. doi: 10.1021/acs.inorgchem.5b00219. Epub 2015 Mar 23.

Six tetranuclear 3d–4f single-molecule magnet (SMM) complexes formed using N-n-butyldiethanolamine and N-methyldiethanolamine in conjunction with ortho- and para-substituted benzoic acid and hexafluoroacetoacetone ligands yield two families, both having a butterfly metallic core. The first consists of four complexes of...

Copper tolerance in a population of Silene vulgaris ssp. maritima (A. & D. Love) at Dolfrwynog Bog near Dolgellau, North Wales.

Environmental geochemistry and health

Price CG, Abrahams PW.
PMID: 24198174
Environ Geochem Health. 1994 Mar;16(1):27-30. doi: 10.1007/BF00149590.

Clones of Silene vulgaris ssp. maritima individuals from Dolfrwynog Bog, North Wales and from a coastal control site were propagated under standardised environmental conditions. After five months, cuttings were taken and tested for copper tolerance by means of root...

AgC(CN)3-based coordination polymers.

Inorganic chemistry

Abrahams BF, Batten SR, Hoskins BF, Robson R.
PMID: 12691573
Inorg Chem. 2003 Apr 21;42(8):2654-64. doi: 10.1021/ic026189s.

Reaction of Ag(tcm), tcm = tricyanomethanide, C(CN)(3)(-), with a range of terminal and bridging ligands results in formation of a series of new coordination polymers. Recrystallization of Ag(tcm) from acetonitrile generates Ag(tcm)(MeCN), which is composed of corrugated (6,3) sheets...

On the existence of flexural edge waves on thin orthotropic plates.

The Journal of the Acoustical Society of America

Thompson I, Abrahams ID, Norris AN.
PMID: 12430790
J Acoust Soc Am. 2002 Nov;112(5):1756-65. doi: 10.1121/1.1506686.

This paper is concerned with an investigation into the existence of waves propagating along a free edge of an orthotropic plate, where the edge is inclined at arbitrary angle to a principal direction of the material. After deriving the...

Serendipity and design in the generation of new coordination polymers: an extensive series of highly symmetrical guanidinium-templated, carbonate-based networks with the sodalite topology.

Journal of the American Chemical Society

Abrahams BF, Hawley A, Haywood MG, Hudson TA, Robson R, Slizys DA.
PMID: 14995207
J Am Chem Soc. 2004 Mar 10;126(9):2894-904. doi: 10.1021/ja038904i.

The serendipitous discovery of a 3D [Cu(CO(3))(2)(2-)](n) network with the topology of the 4(2)6(4) sodalite net in [Cu(6)(CO(3))(12)(CH(6)N(3))(8)].K(4).8H(2)O paved the way for the deliberate engineering of an extensive series of structurally related guanidinium-templated metal carbonates of composition [M(6)(CO(3))(12)(CH(6)N(3))(8)]Na(3-)[N(CH(3))(4)].xH(2)O, where...

Trianionic organoborate triangles.

Inorganic chemistry

Abrahams BF, Boughton BA, Choy H, Clarke O, Grannas MJ, Price DJ, Robson R.
PMID: 18826210
Inorg Chem. 2008 Nov 03;47(21):9797-803. doi: 10.1021/ic800544j. Epub 2008 Oct 01.

The rigid, angular ligand 3,3,3',3'-tetramethyl-1,1'spirobisindane-5,5',6,6'-tetrol, LH4, in the form of its tetra-anion, L(4-), affords crystalline compounds containing the triangular macrocyclic boron derivative [B3L3](3-) with the counter cations, triethylammonium, imidazolium, tetraethylammonium, and protonated dabco (dabco = 1,4-diazabicyclo[2,2,2]octane). Within a triangular...

Surgical treatment of peptic ulcers.

Nursing mirror and midwives journal

ABRAHAMS AM.
PMID: 15439777
Nurs Mirror Midwives J. 1950 Jul 14;91(2363):275-6.

No abstract available.

A mixed-valence, hexadecamolybdenum cluster with an MoVI cubane "jewel" in a "setting" of five molybdateVI-linked dinuclear MoV nits.

Chemistry (Weinheim an der Bergstrasse, Germany)

Hill LM, Abrahams BF, Young CG.
PMID: 18214881
Chemistry. 2008;14(9):2805-10. doi: 10.1002/chem.200701766.

The hexadecanuclear, mixed-valence cluster [Mo(16)O(42)(OH)(2)(3-iPrC(3)H(3)N(2))(12)].H(2)O (1), has been synthesized and characterized by X-ray crystallography, IR spectroscopy and mass spectrometry. The C(2)-symmetric complex consists of a cubane Mo(VI) (4)O(4) "jewel" held in a 10-point "setting" comprised of five dinuclear Mo(V)...

A novel approximation method of CTF amplitude correction for 3D single particle reconstruction.

Ultramicroscopy

Jiang L, Liu Z, Georgieva D, Kuil ME, Abrahams JP.
PMID: 20163916
Ultramicroscopy. 2010 Mar;110(4):350-8. doi: 10.1016/j.ultramic.2010.01.011. Epub 2010 Feb 01.

The typical resolution of three-dimensional reconstruction by cryo-EM single particle analysis is now being pushed up to and beyond the nanometer scale. Correction of the contrast transfer function (CTF) of electron microscopic images is essential for achieving such a...

Medipix 2 detector applied to low energy electron microscopy.

Ultramicroscopy

van Gastel R, Sikharulidze I, Schramm S, Abrahams JP, Poelsema B, Tromp RM, van der Molen SJ.
PMID: 19822398
Ultramicroscopy. 2009 Dec;110(1):33-5. doi: 10.1016/j.ultramic.2009.09.002. Epub 2009 Sep 17.

Low energy electron microscopy (LEEM) and photo-emission electron microscopy (PEEM) traditionally use microchannel plates (MCPs), a phosphor screen and a CCD-camera to record images and diffraction patterns. In recent years, however, MCPs have become a limiting factor for these...

Showing 1 to 12 of 204 entries