557 research outputs found
Amalgamated Shearers' Union of Australasia - Delegates to 5th annual conference
No full textBack Row (L-R): J. Kemp, S.J. Treloar, J. M Toomey, J.J. McCarthy, T. White, W.H. Downey. Middle Row (L-R): A. Rae, W.W. Head, W. Craven, H. McDonald, W.D. Smith, G.F. Grill, J. Slattery, S.Potter, G.A. Andrew (Editor 'Record'). Front Row (L-R): J. Mooney, H. Langwell, G. Cartwright, J. Cumming, A. Murphy, A. Poynton (Treasurer), J.A.Cook (Vice-President), W.G. Spence (President), C. Poynton (Vice-President), D. Temple (Secretary), R. Stevenson, T. Williams, B.H. Stanley, J.R. McDonald, J. Nulty
Solution Structures of TOAC Labeled Trichogin GA IV Peptides from Allowed (g≈2) and Half-Field Electron Spin Resonance
No full textThe recently isolated trichogin GA IV is a 10 amino acid, Aib-rich peptide with potent membrane-modifying properties. The peptide is too short to span lipid bilayers, so the mechanism by which trichogin GA IV interacts with biological membranes is unknown. The crystal structure has been solved, but there is much less information on the peptide's conformation in solution. This problem is addressed by examining the electron spin resonance (ESR) of single and double TOAC-labeled trichogin GA IV analogues, where TOAC is a rigid nitroxide amino acid and serves as an Aib analogue. The doubly labeled peptides, trich-1,4, -4,8 and -1,8, represent all possible trichogin GA IV analogues containing two Aib --> TOAC substitutions. ESR in MeOH at 200 K of the g approximate to 2 spectral region suggests that the N-terminus from residues one through four adopts a helical structure similar to that observed in the crystal. However, the central and C-terminal regions appear to be structurally heterogeneous. To further resolve the solution structure, we performed half-field ESR measurements in a MeOH/EtOH glass at 120 K and referenced them against similar measurements from a series of double TOAC-labeled peptides of known structure. Half-field intensities depend on electron spin dipolar coupling and scale as 1/r(6) where r is the internitroxide distance. The combination of allowed (g approximate to 2) and half-field ESR indicates that the trichogin GA IV C-terminal region is partially alpha-helical, as in the crystal structure, but is in equilibrium with unfolded conformers. It is suggested that the Gly-Gly stretch creates a hinge point between two short but stable helical regions. The combined ESR methods used here represent a new approach for determining the solution structures of partially folded peptides
Collagen supplementation augments strength training-induced gains in tendon size and rate of force development in elite female Master field hockey athletes
No full textWe investigated the effect of 8-weeks’ eccentric resistance exercise (RE) with hydrolysed collagen (HC) supplementation on patellar tendon (PT) cross sectional area (CSA), vastus lateralis (VL) muscle size, maximum voluntary force (MVF) and peak rate of force development (pRFD) in international female field hockey Master athletes. Twenty-two premenopausal women (37±2 years, 68.9±8.0 kg; 1.68±0.04 m) were randomly assigned to collagen (COL, n=10) and placebo (PLA, n=12) cohorts in a triple-blind design. They completed three eccentric RE sessions per week for eight weeks in addition to their regular hockey training. Before each RE session, participants ingested 30g HC (COL) or 30g maltodextrin (PLA), together with 500 mg vitamin C. Pre- and post-intervention, we assessed MVF and pRFD during a voluntary multi-joint isometric muscle contraction, and countermovement jump (CMJ) height, while VL thickness and PT CSA were measured with ultrasonography. MVF increased from 892±366 to 1,011±420 N (P=0.020) and VL thickness from 21±3 to 22±3 mm (P=0.015), with no group×time interactions (P>0.05), while CMJ height did not change (P=0.238). PT CSA increased in both groups (P<0.001) but more in COL (116±12 to 121±13 mm2) than PLA (109±22 to 111±22 mm2, P=0.014). Similarly, pRFD increased in both groups (P=0.002) but more in COL (7.9±1.3 to 10.1±2.4 kN∙s-1) than PLA 8.2 ± 2.4 to 9.6 ± 2.9 kN∙s-1, P=0.039). Therefore, HC supplementation enhanced gains in PT CSA and pRFD following eight weeks’ eccentric RE in elite female field hockey Master athletes, thus providing an effective strategy to improve physical performance in this under-researched population
Industry structure and regulation
No full textAs private firms become increasingly involved in the development of key infrastructure, redefining the role of government from that of serviceprovider to regulator presents both challenges and opportunities. The factors that give rise to sector reforms color how much policymakers invest in regulatory design during the reform process. Nevertheless, two factors are essential to sustainable sector and regulatory reform. First, the right structure must be established for the industry concerned, a structure that allows competition appropriate for that industry. Second, the objectives of regulation must be well defined, with a clear distinction between policymaking, policy implementation, and operations. The extent to which competition can be harnessed to help make regulation efficient, effective, and sustainable depends on the intrinsic technical characteristics of the sector. Each decision affects the sustainability of the regulatory regime in the face of the threat of regulatory capture (both political and commercial). Careful regulatory design is crucial not only for successful sectoral reform but also to balance the interests of various actors (government, consumers, developers, investors, and financiers). One model that has been relatively successful combines new entry, unbundled services, and the unambiguous spelling out of the legal rights and duties for both public and private service providers, administered by an autonomous regulatory authority. Problems with regulation often result as much from inadequate attention to sector structure and fostering competition as from weaknesses in the regulatory authority's institutional capacity. As for the tools of regulation, despite differences in some details between licenses and concessions (and their many contractual variations), these are basically instruments that establish the rights and obligations of contracting parties. Choices about where these rights and obligations are located in the legal hierarchy are shaped by a country's institutional capacity and legal traditions. But the existence of instruments to establish those rights and obligations does not eliminate the need for institutionsto administer them, and thus carry out the regulatory function. Establishing effective sectorwide regulation can be difficult in a developing country, but it is necessary. Policymakers will be able to create effective regulatory regimes where adequate attention is given to sector structure, competition, and institution-building.Environmental Economics&Policies,Trade Finance and Investment,Knowledge Economy,ICT Policy and Strategies,Decentralization,Environmental Economics&Policies,Administrative&Regulatory Law,ICT Policy and Strategies,Water and Industry,Knowledge Economy
Search for supersymmetry with R-parity violating L L anti-E couplings at S**(1/2) = 183-GeV
No full textSearches for pair production of supersymmetric particles in ee collisions at centre-of-mass energy of 183~GeV have been performed on DELPHI data under the assumption that -parity is not conserved. Only one -parity violating coupling of type, which couples the sleptons to the leptons ( term), is considered to be dominant at a time. Since in models with -parity violation any supersymmetric particle can be the lightest one, searches for charginos, neutralinos, sleptons and squarks have been performed both for direct -parity violating decays and for indirect cascade decays. Morever, it is assumed that the strength of the -parity violating couplings is such that the lifetimes can be neglected. The present study?base=pre
Search for SUSY with R-parity violating LL anti-E couplings at s**(1/2) = 189-GeV
No full textSearches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e+e- collisions at a centre-of-mass energy of 189 GeV. Only one R-parity violating LLĒ term (i.e. one l coupling), which couples scalar leptons to leptons, is considered to be dominant at a time. Moreover, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The search for pair production of neutralinos, charginos and sleptons has been performed for both direct R-parity violating decays and indirect cascade decays. The results are in agreement with Standard Model expectations, and are used to update the constraints on the MSSM parameter values and the mass limits previously derived at √s =183 GeV. The present 95% C.L. limits on supersymmetric particle masses are: mx∼0 > 30GeV/c2 and mx∼± > 94 GeV/c2; mv∼ > 76.5GeV/c2 (direct and indirect decays); ml∼R > 83GeV/c2 (indirect decay only).0info:eu-repo/semantics/publishe
Search for spontaneous R-parity violation at s**(1/2) = 183-GeV and 189-GeV
No full textSearches for spontaneous R-parity-violating signals at roots = 183 GeV and roots = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-parity breaking in the third lepton family. The expected topology for the decay of a pair of charginos into two acoplanar taus plus missing energy was investigated and no evidence for a signal was found. The results were used to derive a limit on the chargino mass and to constrain the allowed domains of the MSSM parameter space
Search for SUSY with R-parity violating LL(E)over-bar couplings at root s=189 GeV
No full textSearches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e(+)e(-) collisions at a centre-of-mass energy of 189 GeV. Only one R-parity violating LL (E) over bar term (i.e. one lambda coupling), which couples scalar leptons to leptons, is considered to be dominant at a time. Moreover, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The search for pair production of neutralinos, charginos and sleptons has been performed for both direct R-parity violating decays and indirect cascade decays. The results are in agreement with Standard Model expectations, and are used to update the constraints on the MSSM parameter values and the mass limits previously derived at root s = 183 GeV. The present 95% C.L. Limits on supersymmetric particle masses are: m(<(chi)over tilde>0) > 30 GeV/c(2) and m(<(chi)over tilde>+/-) > 94 GeV/c(2); m(<(nu)over tilde>) > 76.5 GeV/c(2) (direct and indirect decays); m((l) over tilde R) > 83 GeV/c(2) (indirect decay only). (C) 2000 Elsevier Science B.V. All rights reserved
Search for an LSP gluino at LEP with the DELPHI detector
No full textIn some supersymmetric models, the gluino ((g) over tilde) is predicted to be light and stable. In that case, it would hadronize to form R-hadrons. In these models, the missing energy signature of the lightest supersymmetric particle is no longer valid, even if R-parity is conserved. Therefore, such a gluino is not constrained by hadron collider results, which looked for the decay (g) over tilde → q (q) over bar(χ) over tilde (0)(1). Data collected by the DELPHI detector in 1994 at 91.2 GeV have been analysed to search for q (q) over bar(gg) over tilde events. No deviation from Standard Model predictions is observed and a gluino mass between 2 and 18 GeV/c(2) is excluded at the 95% confidence level in these models. Then, R-hadrons produced in the squark decays were searched for in the data collected by DELPHI at the centre-of- mass energies of 189 to 208 GeV, corresponding to an overall integrated luminosity of 609 pb(-1). The observed number of events is in agreement with the Standard Model predictions. Limits at 95% confidence level are derived on the squark masses from the excluded regions in the plane (m((q) over tilde1),m((g) over bar)): m((t) over tilde1) gt 90 GeV/c(2) and m((b) over tilde1) gt 96 GeV/c(2) for purely left squarks. m((t) over tilde1) gt 87 GeV/c(2) and m((b) over tilde1) gt 82 GeV/c(2) independent of the mixing angle
m(b) at M-Z
No full textThe value of the Lr quark, mass at the M-Z scale defined in the <(MS)over bar> renormalization scheme, m(b)(M-Z), was determined using 2.8 million hadronic Z decays collected during 1992-1994 by the DELPHI detector to be m(b)(M-Z) = 2.67 +/- 0.25 (stat.) +/- 0.34 (frag.) +/- 0.27 (theo.) GeV/c(2). The analysis considers NLO corrections to the three-jet production rate including mass effects, and the result obtained agrees with the QCD prediction of having a running b quark mass at an energy scale equal to M-Z. This is the first time that such a measurement is performed far above the <b(b)over bar> production threshold. The study also verifies the flavour independence of the strong coupling constant for b and light quarks within 1% accuracy. (C) 1998 Elsevier Science B.V
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