Nuclear hyperfine interactions in W^(182), W^(183), and Pt^(195) as studies by the Mossbauer effect

The Mössbauer technique has been used to study the nuclear hyperfine interactions and lifetimes in W¹⁸² (2⁺ state) and W¹⁸³ (3/2^- and 5/2^- states) with the following results: g(5/2^-)/g(2⁺) = 1.40 ± 0.04; g(3/2^- = -0.07 ± 0.07; Q(5/2^-)/Q(2⁺) = 0.94 ± 0.04; T_1/2(3/2^-) = 0.184 ± 0.005 nsec; T_1/2(5/2^-) >̰ 0.7 nsec. These quantities are discussed in terms of a rotation-particle interaction in W¹⁸³ due to Coriolis coupling. From the measured quantities and additional information on γ-ray transition intensities magnetic single-particle matrix elements are derived. It is inferred from these that the two effective g-factors, resulting from the Nilsson-model calculation of the single-particle matrix elements for the spin operators ŝ_z and ŝ₊, are not equal, consistent with a proposal of Bochnacki and Ogaza.

The internal magnetic fields at the tungsten nucleus were determined for substitutional solid solutions of tungsten in iron, cobalt, and nickel. With g(2⁺) = 0.24 the results are: |H_eff(W-Fe)| = 715 ± 10 kG; |H_eff(W-Co)| = 360 ± 10 kG; |H_eff(W-Ni)| = 90 ± 25 kG. The electric field gradients at the tungsten nucleus were determined for WS₂ and WO₃. With Q(2⁺) = -1.81b the results are: for WS₂, eq = -(1.86 ± 0.05) 10¹⁸ V/cm²; for WO₃, eq = (1.54 ± 0.04) 10¹⁸ V/cm² and ƞ = 0.63 ± 0.02.

The 5/2^- state of Pt¹⁹⁵ has also been studied with the Mössbauer technique, and the g-factor of this state has been determined to be -0.41 ± 0.03. The following magnetic fields at the Pt nucleus were found: in an Fe lattice, 1.19 ± 0.04 MG; in a Co lattice, 0.86 ± 0.03 MG; and in a Ni lattice, 0.36 ± 0.04 MG. Isomeric shifts have been detected in a number of compounds and alloys and have been interpreted to imply that the mean square radius of the Pt¹⁹⁵ nucleus in the first-excited state is smaller than in the ground state.

The ancient East,

The term "The East" refers to Western Asia, cf. Pref.

Authority and archaeology, sacred and profane; essays on the relation of monuments to Biblical and classical literature ... With an introductory chapter on the nature of archaeology,

pt.1. Hebrew authority, by S. R. Driver.--pt.2. Classical authority: Egypt and Assyria, by F. L. Griffith. Prehistoric Greece, by D. G. Hogarth. Historic Greece, by E. A. Gardner. The Romand world, by F. Haverfield.--pt.3. Christian authority, by A. C. Headlam.

Early letters of Jane Welsh Carlyle,

Mode of access: Internet.

Studies in political and social ethics,

Social evolution [International journal of ethics, January, 1896]--Equality [Contemporary review, October, 1892]--Law and liberty: the question of state interference [Society for the study of social ethics, Oxford. Journal, October, 1891]--Civic duties and party politics [Co-operative wholesale societies' annual for 1898]--1792--Year I [International journal of ethics, October, 1892]--War and peace [International journal of ethics, January, 1901]--The ultimate value of social effort.--Free will and responsibility [International journal of ethics, July, 1895]

Natural rights : a criticism of some political and ethical conceptions /

Includes some text in French.

Natural Rights.

Mode of access: Internet.

Grève de cheminots anglais, M. [le ministre du Travail George Henry] Roberts et sir David Shackleton [secrétaire permanent du ministère du Travail] quittant Downing Street : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 56199

Indenture of Land Sold by David Secord to George Shaw, Richard Woodruff, Timothy Street, Josiah Brown, Henry Pope

Indenture regarding land sold by David Secord of St. Davids to George Shaw, Richard Woodruff, Timothy Street and Josiah Brown, all of Niagara Township and Reverend Henry Pope of York. The land includes part of Lot no. 90 in the Township of Niagara. September 5, 1820.

Professor Dr. David Kaufmann und George Eliot

N.

Die hebräische und chaldäische Grammatik des berühmten D. Johann Andreas Danzens, ins Deutsche übersetzt und mit häufigen Anmerkungen erläutert, von George David Kypken, der morgenländ. Sprachen Prof. Extr. in Königsberg

D.Johann Andreas Danzens

David Tovey, Thomas Britanyak, George Young, Leif Bjaland & Director Leonard Johnson

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