1,173 research outputs found
Fish assemblages associated with natural and anthropogenically-modified habitats in a marine embayment: Comparison of baited videos and opera-house traps
No full textMarine embayments and estuaries play an important role in the ecology and life history of many fish species. Cockburn Sound is one of a relative paucity of marine embayments on the west coast of Australia. Its sheltered waters and close proximity to a capital city have resulted in anthropogenic intrusion and extensive seascape modification. This study aimed to compare the sampling efficiencies of baited videos and fish traps in determining the relative abundance and diversity of temperate demersal fish species associated with naturally occurring (seagrass, limestone outcrops and soft sediment) and modified (rockwall and dredge channel) habitats in Cockburn Sound. Baited videos sampled a greater range of species in higher total and mean abundances than fish traps. This larger amount of data collected by baited videos allowed for greater discrimination of fish assemblages between habitats. The markedly higher diversity and abundances of fish associated with seagrass and limestone outcrops, and the fact that these habitats are very limited within Cockburn Sound, suggests they play an important role in the fish ecology of this embayment. Fish assemblages associated with modified habitats comprised a subset of species in lower abundances when compared to natural habitats with similar physical characteristics. This suggests modified habitats may not have provided the necessary resource requirements (e.g. shelter and/or diet) for some species, resulting in alterations to the natural trophic structure and interspecific interactions. Baited videos provided a more efficient and non-extractive method for comparing fish assemblages and habitat associations of smaller bodied species and juveniles in a turbid environment
Cooperating Intelligent Systems for Electricity Distribution
No full textThis paper concentrates on the project's CIDIM (Cooperating Intelligent Systems for DIstribution Syste
An essay upon the propitious and glorious reign of our gracious sovereign Anne, [electronic resource] : Queen of Great Britain, France and Ireland, Defender of the Faith. To which are subjoined the characters of several eminent ministers of state, and Renowned Generals and Officers of the Army; with a brief Account of the Lords Commissioners of the Admiralty, &c.
No full textDedication signed: Will. Cockburn.'Characters of several ministers of state' has a separate titlepage; pagination and register are continuous.Electronic reproduction.English Short Title Catalog,Reproduction of original from British Library
Erythrocyte complement receptor 1 (CR1) expression level is not associated with polymorphisms in the promoter or 3' untranslated regions of the CR1 gene
No full textComplement receptor 1 (CR1) expression level on erythrocytes is genetically determined and is associated with high (H) and low (L) expression alleles identified by a HindIII restriction fragment-length polymorphism (RFLP) in intron 27 of the CR1 gene. The L allele confers protection against severe malaria in Papua New Guinea, probably because erythrocytes with low CR1 expression, are less able to form pathogenic rosettes with Plasmodium falciparum-infected erythrocytes. Despite the biological importance of erythrocyte CR1, the genetic mutation controlling CR1 expression level remains unknown. We investigated the possibility that mutations in the upstream or 3' untranslated regions of the CR1 gene could control erythrocyte CR1 level. We identified several novel polymorphisms; however, the mutations did not segregate with erythrocyte CR1 expression level or the H and L alleles. Therefore, high and low erythrocyte CR1 levels cannot be explained by polymorphisms in transcriptional control elements in the upstream or 3' untranslated regions of the CR1 gene
Status of the Cockburn Sound Crab Fishery
No full textBlue swimmer crabs (Portunus armatus) (formerly Portunus pelagicus; Lai et al., 2010) in Cockburn Sound, Western Australia, are the basis of an important commercial and recreational fishery close to the Perth metropolitan area with the commercial fishery achieving a peak catch of 362 t in 1997/98 and a recreational catch of about 18 t. Commercial blue swimmer crab catches declined significantly since 2000 due to low stock abundance, resulting in the closure of the fishery in December 2006
Status of the Cockburn Sound Crab Fishery
No full textBlue swimmer crabs (Portunus armatus) (formerly Portunus pelagicus; Lai et al., 2010) in Cockburn Sound, Western Australia, are the basis of an important commercial and recreational fishery close to the Perth metropolitan area with the commercial fishery achieving a peak catch of 362 t in 1997/98 and a recreational catch of about 18 t. Commercial blue swimmer crab catches declined significantly since 2000 due to low stock abundance, resulting in the closure of the fishery in December 2006
Subleading corrections to hadronic cross-sections at high energies
No full textThe Large Hadron Collider (LHC) has provided, and will continue to provide,
data for collisions at the highest energies ever seen in a particle accelerator. A
strong knowledge of the properties of amplitudes for Quantum Chromodynamics
in the High Energy Limit is therefore important to interpret this data. We study
this limit in the context of the High Energy Jets (HEJ) formalism. This formalism
resums terms in the perturbative expansion of the cross-section that behave like
αn/s log (s/-t)ⁿ¯¹, which are enhanced in this limit. Understanding this region is
particularly important in certain key analyses at the LHC: for example, Higgs-boson-
plus-dijet analyses where cuts are applied to pick out events with a large
mjj and in many searches for new physics.
In this thesis, we discuss two directions in which HEJ's accuracy has been
improved. Firstly, we look at adding descriptions of partonic subprocesses which
are formally sub-leading in the jet cross-section but Leading Logarithmic (LL)
in the particular subprocess itself. This required the derivation of new effective
vertices that describe the emission of a quark/anti-quark pair in a way that
is consistent with the resummation procedure. The inclusion of such processes
reduces HEJ's dependence on fixed-order calculations and marks an important
step towards full Next-to-Leading Logarithmic (NLL) accuracy in the inclusive
dijet cross-section.
The second extension was to improve our description of events involving the
emission of a Higgs boson along with jets. Specifically, we derive new effective
vertices which keep the full dependence on the quark mass that appears in the
loops that naturally arise in such amplitudes. The formalism is also simple enough
to allow for any number of extra nal state jets in the process. Therefore, HEJ
is unique in its ability to provide predictions for high-multiplicity Higgs-plus-jets
processes with full nite quark mass e ects. Such a calculation is far beyond the
reach of any xed order approach
'The subject' and voice: Cross-Chapter Discussion
No full textThis is the author accepted manuscript. The final version is available from Routledge via the DOI in this recordThis cross-chapter discussion between Rachel Cockburn and Konstantinos Thomaidis centres around subjectivity formation, performativity and ideology. With a particular focus on voice and drawing primarily on Laclau and Althusser, voice is discussed in its entanglement with such notions as 'the individual', the 'self' and the 'subject'. Voicing is examined as steering away from essentialised understandings of selfhood and as partaking in the political scene of subjectivity-making. In this sense, Thomaidis inclines existing research towards two paradigmatic scenaria of subjectivity-making in/through voice: one that conceptualises voice as announcing an a priori self and a second one embracing the subject as always-already interrelated, porous and constitutively incomplete
Feathers and lime
No full textThe author, Ken Cockburn, is an internationally recognised poet and writer. His first collection of poems was shortlisted for a Saltire award; He established and ran, along with Alec Finlay, pocketbooks which was an award winning series of books of poetry and visual art. This book is a collection of translated poems and features work by Thomas Brasch, Rudolf Bussmann, Christine Marendon, Arne Rautenberg and Tina Stroheker. Other than Brasch, this is the first time work by these poets has appeared in English in book form.</p
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