80,502 research outputs found
Roberts, G P, 423383
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/413572Surname: ROBERTS. Given Name(s) or Initials: G P. Military Service Number or Last Known Location: 423383. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 55544.232282
Item: [2016.0049.45833] "Roberts, G P, 423383
West view of Chepstow Bridge
No full text'WEST VIEW of CHEPSTOW BRIDGE. P. Sandby R� A� pinxt. J. Roberts sculpt. Published as the Act directs, by G. Kearsly, No. 46, Fleet Street, Novr. 1, 1779.' Above right '37.
Turner (H.A.), Clack (G.) et Roberts (G.) - Labour relations in the Motor Industry.
No full textLhomme Jean. Turner (H.A.), Clack (G.) et Roberts (G.) - Labour relations in the Motor Industry.. In: Revue économique, volume 19, n°6, 1968. p. 1087
Sulphur Oxidation. Enantioselective oxidation of methyl p-tolyl sulphide catalysed by chloroperoxidase
No full textCondover Park, Shropshire
No full text'CONDOVER PARK. SHROPSHIRE. Drawn by J. P. Neale. Engraved by E. I. Roberts. London. Pub. Dec. 1. 1825, by J. P. Neale, 16, Bennett St. Blackfriars Road & Sherwood, Jones & Co. Paternoster Row. Printed by J & G. Bishop.' Accompanied by notes
Integrable maps in 4D and modified Volterra lattices
No full textIn recent work, we presented the construction of a family of difference
equations associated with the Stieltjes continued fraction expansion of a
certain function on a hyperelliptic curve of genus . As well as proving that
each such discrete system is an integrable map in the Liouville sense, we also
showed it to be an algebraic completely integrable system. In the discrete
setting, the latter means that the generic level set of the invariants is an
affine part of an abelian variety, in this case the Jacobian of the
hyperelliptic curve, and each iteration of the map corresponds to a translation
by a fixed vector on the Jacobian. In addition, we demonstrated that, by
combining the discrete integrable dynamics with the flow of one of the
commuting Hamiltonian vector fields, these maps provide genus
algebro-geometric solutions of the infinite Volterra lattice, which justified
naming them Volterra maps, denoted .
The original motivation behind our work was the fact that, in the particular
case , we could recover an example of an integrable symplectic map in four
dimensions found by Gubbiotti, Joshi, Tran and Viallet, who classified
birational maps in 4D admitting two invariants (first integrals) with a
particular degree structure, by considering recurrences of fourth order with a
certain symmetry. Hence, in this particular case, the map yields
genus two solutions of the Volterra lattice. The purpose of this note is to
point out how two of the other 4D integrable maps obtained in the
classification of Gubbiotti et al. correspond to genus two solutions of two
different forms of the modified Volterra lattice, being related via a
Miura-type transformation to the Volterra map .
We dedicate this work to a dear friend and colleague, Decio Levi
Cricetomyinae Roberts 1951
No full text<p>Subfamily Cricetomyinae Roberts, 1951. Mammals S Africa, p. 434.</p> <p>SYNONYMS: Saccostomurinae.</p> <p> COMMENTS: Although initially classified within Murinae (e.g., Ellerman, 1941; Simpson, 1945; Thomas, 1897a), systematists acknowledged a closer affinity of African pouched rats to one another than to other murines, a distinction later formalized by Roberts (1951). Subsequent systematic arrangements have followed Petter (1966a) in allying cricetomyines with cricetids (Reig, 1980; Rosevear, 1969). Anatomy of internal cheek pouches supports the monophyly of the subfamily (see Ryan, 1989b); other morphological traits and phylogenetic interpretations summarized by Carleton and Musser (1984). Roberts (1951) segregated <i>Saccostomus,</i> as the lone member of Saccostomurinae, from other African pouched rats (Cricetomyinae), a division not recognized by later systematists (Petter, 1966a; Ryan, 1989b).</p>Published as part of <i>Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press</i> on page 540, DOI: <a href="http://zenodo.org/record/7353098">10.5281/zenodo.7353098</a>
Spatial and temporal variations in growth rates along active normal fault Systems: an example from the Lazio-Abruzzo Apennines, central Italy
No full textThe geometry, kinematics and rates of active extension in Lazio–Abruzzo, Italian Apennines, have been measured in order to gain a better
understanding of the spatial and temporal variations in fault growth rates and seismic hazards associated with active normal fault systems.
We present fault map traces, throws, throw-rates and slip-directions for 17 parallel, en e ́chelon or end-on active normal faults whose 20–
40 km lengths combine to form a soft-linked fault array ca. 155 km in length and ca. 55 km across strike. Throw-rates derived from
observations of faulted late-glacial features and Holocene soils show that both maximum throw-rates and throw-rate gradients are greater on
centrally-located faults along the strike of the array; total throws and throw gradients show similar spatial variations but with weaker
relationships with distance along strike. When summed across strike, throw-rates are increasingly high towards the centre of the array relative
to summed throws. We interpret the above to suggest that throw-rates have changed in the recent past (ca. 0.7 Ma) from spatially-random
fault growth rates (initiating at 2.5–3.3 Ma) to growth rates that are greater on centrally-located faults. We interpret this as evidence for fault
interaction producing throw-rate variations that drive throw profile readjustment on these crustal scale soft-linked faults. The results are used
to discuss seismic hazards in the region, which are quantified in a second paper in this issue
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