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Showing 25 to 36 of 1003 entries
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Incorporation of short-lived (10)Be in a calcium-aluminum-rich inclusion from the allende meteorite.

Science (New York, N.Y.)

McKeegan KD, Chaussidon M, Robert F.
PMID: 10958776
Science. 2000 Aug 25;289(5483):1334-7. doi: 10.1126/science.289.5483.1334.

Enrichments in boron-10/boron-11 in a calcium-aluminum-rich inclusion from the Allende carbonaceous chondrite are correlated with beryllium/boron in a manner indicative of the in situ decay of short-lived beryllium-10. Because this radionuclide is produced only by nuclear spallation reactions, its...

Quantum metallicity in a two-dimensional insulator.

Nature

Butko VY, Adams PW.
PMID: 11196633
Nature. 2001 Jan 11;409(6817):161-4. doi: 10.1038/35051516.

One of the most far-reaching problems in condensed-matter physics is to understand how interactions between electrons, and the resulting correlations, affect the electronic properties of disordered two-dimensional systems. Extensive experimental and theoretical studies have shown that interaction effects are...

The early evolution of the inner solar system: a meteoritic perspective.

Science (New York, N.Y.)

O'D Alexander CM, Boss AP, Carlson RW.
PMID: 11441173
Science. 2001 Jul 06;293(5527):64-8. doi: 10.1126/science.1052872.

Formation of the solar system may have been triggered by a stellar wind. From then on, the solar system would have followed a conventional evolutionary path, including the formation of a disk and bipolar jets. The now extinct short-lived...

Beryllium Chelation by Dicarboxylic Acids in Aqueous Solution.

Inorganic chemistry

Schmidt M, Bauer A, Schmidbaur H.
PMID: 11669821
Inorg Chem. 1997 May 07;36(10):2040-2043. doi: 10.1021/ic961410k.

Maleic and phthalic acids are found to react with Be(OH)(2), generated in situ from BeSO(4)(aq) and Ba(OH)(2)(aq), in aqueous solution at pH 3.0 or 4.4, respectively (25 degrees C), to give solutions containing the complexes (H(2)O)(2)Be[(OOCCH)(2)] (1) and (H(2)O)(2)Be[(OOC)(2)C(6)H(4)]...

Design and performance of ESRF high-power undulator front-end components.

Journal of synchrotron radiation

Biasci JC, Plan B, Zhang L.
PMID: 11779945
J Synchrotron Radiat. 2002 Jan 01;9:44-6. doi: 10.1107/s0909049501019215. Epub 2001 Dec 24.

A new high-power front-end has been developed and installed at the European Synchrotron Radiation Facility. The new design consists of the replacement of the X-ray absorber and the filtering system. An upstream pre-slit and a compact high-heat-load absorber have...

Population kinetics of lithiumlike and berylliumlike ions in low temperature dense recombining plasma.

Physical review. E, Statistical, nonlinear, and soft matter physics

Kawachi T.
PMID: 12636613
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Jan;67(1):016409. doi: 10.1103/PhysRevE.67.016409. Epub 2003 Jan 29.

A collisional-radiative model for the lithiumlike and berylliumlike ions has been constructed. In this model, virtually all the doubly excited levels of the berylliumlike ions are taken into account. Time-differential coupled rate equations for the level populations of the...

The first organically templated 1D lithioberyllofluoride chain, [LiBe2F7][C4N2H12] [H2O]1.5.

Chemical communications (Cambridge, England)

Gerrard LA, Weller MT.
PMID: 12703788
Chem Commun (Camb). 2003 Mar 21;(6):716-7.

Using a combination of hydrothermal and slow evaporation experimental techniques a 1D lithium-beryllium-fluoride chain has been synthesised. In this material a 3D hydrogen bonded network exists between solvent water, a doubly protonated organic piperazinium template and the inorganic chain.

Selective determination of beryllium(II) ion at picomole per decimeter cubed levels by kinetic differentiation mode reversed-phase high-performance liquid chromatography with fluorometric detection using 2-(2'-hydroxyphenyl)-10-hydroxybenzo[H]quinoline as precolumn chelating reagent.

Analytical chemistry

Matsumiya H, Hoshino H.
PMID: 12585465
Anal Chem. 2003 Feb 01;75(3):413-9. doi: 10.1021/ac0260847.

A highly sensitive and selective method for the determination of the Be(II) ion has been developed by the use of reversed-phase high-performance liquid chromatography (HPLC) with fluorometric detection using 2-(2'-hydroxyphenyl)-10-hydroxybenzo[h]quinoline (HPHBQ) as a precolumn (off-line) chelating reagent. The reagent...

Introduction to the Conference on Beryllium-related Diseases.

Environmental health perspectives

Jameson CW.
PMID: 9512435
Environ Health Perspect. 1996 Oct;104(5):935-6.

No abstract available.

Exchange-correlation potentials for high-electron-density ions in the Be isoelectronic series.

The Journal of chemical physics

Morrison RC, Bartolotti LJ.
PMID: 15606233
J Chem Phys. 2004 Dec 22;121(24):12151-7. doi: 10.1063/1.1824877.

Accurate reference wave functions and their densities have been used to obtain accurate exchange-correlation potentials for the beryllium isoelectronic sequence Be, Ne(+6), Ar(+14), and Kr(+32). The exchange-correlation potentials for the four-electron cations with high Z in this sequence exhibit...

Study on the effects of nitrilotriproprionic acid and 4,5-dihydroxy-1,3-benzene disulphonate on the fractionation of beryllium in human serum using graphite furnace atomic absorption spectrometry.

Chemistry Central journal

Stephan CH, Fournier M, Brousseau P, Sauvé S.
PMID: 18479524
Chem Cent J. 2008 May 14;2:10. doi: 10.1186/1752-153X-2-10.

BACKGROUND: Occupational exposure to beryllium may cause Chronic Beryllium Disease (CBD), a lung disorder initiated by an electrostatic interaction with the MHC class II human leukocyte antigen (HLA). Molecular studies have found a significant correlation between the electrostatic potential...

Hydroxynaphthyridine-derived group III metal chelates: wide band gap and deep blue analogues of green Alq3 (tris(8-hydroxyquinolate)aluminum) and their versatile applications for organic light-emitting diodes.

Journal of the American Chemical Society

Liao SH, Shiu JR, Liu SW, Yeh SJ, Chen YH, Chen CT, Chow TJ, Wu CI.
PMID: 19093863
J Am Chem Soc. 2009 Jan 21;131(2):763-77. doi: 10.1021/ja807284e.

A series of group III metal chelates have been synthesized and characterized for the versatile application of organic light-emitting diodes (OLEDs). These metal chelates are based on 4-hydroxy-1,5-naphthyridine derivates as chelating ligands, and they are the blue version analogues...

Showing 25 to 36 of 1003 entries