195,405 research outputs found

    Characterization of two, desiccation linked, Group 1 LEA proteins from the resurrection plant Xerophyta humilis

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    Studies on resurrection plants and other anhydrobiotic organisms show expression of Late Embryogenesis Abundant (LEA) proteins associated with desiccation tolerance. However, the precise role of these proteins has not been described. This study was undertaken to investigate expression, structure and function of XhLEA1-4S1 and XhLEA1-1S2, Group 1 LEA proteins from Xerophyta humilis, in order to shed light on their role in desiccation tolerance. Complementary DNA (cDNA) of these XhLEAs were cloned into bacterial expression vectors and the recombinant proteins expressed in E. coli. Antibodies were generated and used in determination of expression conditions and immunolocalization studies

    Lea, R, NX28385

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.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/398709Surname: LEA. Given Name(s) or Initials: R. Military Service Number or Last Known Location: NX28385. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 18997.215978 Item: [2016.0049.31002] "Lea, R, NX28385

    Lea, R F, VX7203

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.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/398711Surname: LEA. Given Name(s) or Initials: R F. Military Service Number or Last Known Location: VX7203. Missing, Wounded and Prisoner of War Enquiry Card Index Number: C8632.215980 Item: [2016.0049.31004] "Lea, R F, VX7203

    Lea, R S, QX16410

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.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/398710Surname: LEA. Given Name(s) or Initials: R S. Military Service Number or Last Known Location: QX16410. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 32752.215979 Item: [2016.0049.31003] "Lea, R S, QX16410

    Nuclear modification of light flavour and strangeness at LHC energies with ALICE

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    Thanks to its unique particle identification capabilities the ALICE detector is able to identify light-flavour, strange and multi-strange hadrons, including π, K, p, KS0{\rm{K}}_{{\rm{S}}}^{0}, Λ, Ξ and Ω, over a wide range of transverse momentum, from pp and p–Pb interactions up to central Pb–Pb collisions. The latest results on the nuclear modification factor, R (AA), as a function of the Pb–Pb collision centrality, is shown for various particle specie at sNN=2.76 TeV\sqrt{{s}_{{\rm{N}}{\rm{N}}}}=2.76\ \mathrm{TeV} centre-of-mass energy. For each particle specie, the R (AA) is compared with the nuclear modification factors R (pA) in p-Pb collisions to asses the presence of hot nuclear matter effects affecting the high-p (Τ) particle production in Pb–Pb collisions. The results on the R (AA) of charged hadrons at sNN=5.02 TeV\sqrt{{s}_{{\rm{N}}{\rm{N}}}}=5.02\ \mathrm{TeV}, the highest energy ever reached in the laboratory for heavy-ion collisions, is also shown

    The River Lea 1571-1767: a river navigation prior to canalisation

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    PhDIn pre-industrial England river navigations were subject to improvement by canalisation, the introduction of artificial navigation cuts and pound locks. Along the Lea this did not happen until 1767. Before that the navigation, except for one short period, relied upon a less efficient technology, the provision of flashes from fishing weirs, turnpikes and mills. Yet the river was still an important transport route, particularly for the supply of grain, meal and malt to London. It had been this during the mediaeval period, but not by the middle of the sixteenth century. Then in 1571 the City of London sponsored legislation to construct a canal from the Lea to London. Parliamentary opposition thwarted the original ambitious scheme, so two cheaper, shorter canals were considered, but never built. Instead an ambitious and unique river improvement scheme was successfully implemented. This experimental navigation (reducing reliance on flashes to a minimum) survived 20 years, before persistent and violent opposition from land carriers closed it. A Star Chamber case upheld the rights of the bargemen, but the experimental navigation was not restored. Instead the traditional flash-lock navigation re-appeared, and was to last, with only minor improvementg until 1767. In the intervening years the navigation continued to expand and prosper., This despite the admitted problems of relying on flashes and tides, and despite a series of major disputes with the New River Companyq the millers, fishermen and riparian land-owners. Conflict there certainly was, but also compromise. Ultimately all parties were prepared to accept the conflicting rights of other users, provided they could defend their own. commissions of Sewers provided an effective administrative forum to effect and authorise such compromise, even after the appointment of a body of Trustees in 1739. That the Lea was an adequate navigation before canalisation, despite a 'second-best' technology and an unpaid part-time administrative structure means' that a valid comparison with the concept of Appropiate Technology, discussed in modern-day development theory, is possible

    This mapp of the sea coast of Europe and ye straits ... /

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    Title from dedication.By R. Morden and P. Lea (c.f. Phillips, 4271)Hand coloured.Relief shown pictorially.Inset: Natolia, or Littel Asia.Phillips

    Professor Peter J. Lea: The man, the scientist - Obituary

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    Editorial Professor Peter John Lea (Figure 1), PhD, Emeritus Professor at Lancaster University, passed away on 16 June 2024. Tributes such as the one by Lancaster University (https://portal.lancaster.ac.uk/intranet/news/article/professor-peter-lea-phd-dsc-liverpool-fibiol), among others, have been paid to him soon after and an announcement was published on the website of Annals of Applied Biology (https://onlinelibrary.wiley.com/journal/17447348). At Rothamsted for 12 years 1973-198

    (Multi-)strange hadron and light (anti-)nuclei production with ALICE at the LHC

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    Thanks to its excellent tracking performance and particle identification capabilities, the ALICE detector allows for the identification of light (anti-)(hyper)nuclei and for the measurement of (multi-)strange particles over a wide range of transverse momentum. Deuterons, 3He and 4He and their corresponding anti-nuclei are identified via their specific energy loss in the Time Projection Chamber and the velocity measurement provided by the Time-Of-Flightdetector. Strange and multi-strange baryons and mesons as well as (anti-)hypertritons are reconstructed via their topological decays.Detailed measurements of (multi-)strange hadron production in pp, p–Pb and Pb–Pb collision and of light (anti-)nuclei and (anti-)hypertritons in Pb–Pb collisions with ALICE at the LHC are presented.The experimental results will be compared with the predictions of both statistical hadronization and coalescence models

    (Anti-)deuteron production and anisotropic flow measured with ALICE at the LHC

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    The high abundance of (anti-)deuterons in the statistics gathered in Run 1 of the LHC and the excellent performance of the ALICE setup allow for the simultaneous measurement of the elliptic flow and the deuteron production rates with a large transverse momentum (pTp_{\rm T}) reach. The (anti-) deuterons are identified using the specific energy loss in the time projection chamber and the velocity information in the time-of-flight detector. The elliptic flow of (anti-)deuterons can provide insight into the production mechanisms of particles in heavy-ion collisions. Quark coalescence is one of the approaches to describe the elliptic flow of hadrons, while the production of light nuclei can be also depicted as a coalescence of nucleons. In these proceedings, the measured v2v_{2} of deuterons produced in Pb--Pb collisions at sNN\sqrt{s_{\mathrm{NN}}}=2.76TeV will be compared to expectations from coalescence and hydrodynamic models.The high abundance of (anti-)deuterons in the statistics gathered in Run 1 of the LHC and the excellent performance of the ALICE setup allow for the simultaneous measurement of the elliptic flow and the deuteron production rates with a large transverse momentum ( p T ) reach. The (anti-) deuterons are identified using the specific energy loss in the time projection chamber and the velocity information in the time-of-flight detector. The elliptic flow of (anti-)deuterons can provide insight into the production mechanisms of particles in heavy-ion collisions. Quark coalescence is one of the approaches to describe the elliptic flow of hadrons, while the production of light nuclei can be also depicted as a coalescence of nucleons. In these proceedings, the measured v 2 of deuterons produced in Pb–Pb collisions at sNN=2.76 TeV will be compared to expectations from coalescence and hydrodynamic models.The high abundance of (anti-)deuterons in the statistics gathered in Run 1 of the LHC and the excellent performance of the ALICE setup allow for the simultaneous measurement of the elliptic flow and the deuteron production rates with a large transverse momentum (pTp_{\rm T}) reach. The (anti-) deuterons are identified using the specific energy loss in the time projection chamber and the velocity information in the time-of-flight detector. The elliptic flow of (anti-)deuterons can provide insight into the production mechanisms of particles in heavy-ion collisions. Quark coalescence is one of the approaches to describe the elliptic flow of hadrons, while the production of light nuclei can be also depicted as a coalescence of nucleons. In these proceedings, the measured v2v_{2} of deuterons produced in Pb--Pb collisions at sNN\sqrt{s_{\mathrm{NN}}}=2.76TeV will be compared to expectations from coalescence and hydrodynamic models
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