188,201 research outputs found
Urban rural water exchange : PRW in the Lockyer Valley
No full textA significant amount (ca. 15-25 GL/a) of PRW (Purified Recycled Water) from urban areas is foreseen as augmentation of the depleted groundwater resources of the Lockyer Valley (approx. 80 km west of Brisbane). Theresearch project uses field investigations, lab trials and modelling techniques to address the key challenges:\ud
(i) how to determine benefits of individual users from the augmentation of a natural common pool resource;\ud
(ii) how to minimise impacts of applying different quality water on the Lockyer soils, to creeks and on aquifier materials;\ud
(iii) how to minimuse mobilisation of salts in the unsaturated and saturated zones as a result of increased deep drainage;\ud
(iv) determination of potential for direct aquifer recharge using injection wells
Donegal quiz team
No full textBlack and white group portrait photograph of a group of five men and a woman, standing behind a display of trophies on a small table. They are identified from a handwritten note on the back as 'Jack; McGuire; P Hegarty; Rita McGinley; P; Paul McGinley'. Photograph by B C Lockyer, copyright B C Lockyer
Cloning, expression and inhibitor studies of organellar Ca2-ATPases
No full textA complementary DNA for the Tobacco Budworm, Heliothis virescens, sarco (endo)plasmic reticulum-type Ca2+-ATPase (HVSERCA) has been cloned and sequenced. The cDNA was cloned from a random-primed cDNA library made from 4th and 5th instar larvae polyA+ RNA. cDNA fragments of adult rabbit fast-twitch muscle CVa2+-ATPase (SERCA1a) were used as heterologous probes to isolate a partial cDNA clone which coded for a protein with high amino acid homology to the Ca2+-ATPase of Drosophila melanogaster (DRSERCA) and vertebrate ER/SR calcium pumps. Fragments of this Heliothis clone were utilised as probes to 'walk' upstream. The extreme 5' end of the insect Ca2+-ATPase cDNA sequence was isolated by PCR. The entire cDNA clone contains an open reading frame of 1000 codons and shares the characteristic motifs of P-type ATPases. The five nucleotides upstream of the start codon (CCACCAUGG) share the same sequence as the consensus Kozak transitional start sequence. It is the third arthropod ER/SR CA2+-ATPase to be cloned and has high amino acid identity with DRSERCA and about 70% identity with mammalian SERCAs.Two novel inhibitors of rabbit SERCA1a enzyme have been identified, ellagic acid and curcumin. ATPase activity of purified rabbit skeletal SR is inhibited by ellagic acid and curcumin at an IC50 of 10 μM and 4 μM, respectively. Ellagic acid raises [Ca2+]i in Quail fibroblasts imaged by confocal microscopy with the Ca2+ dye Indo-1. In contrast, curcumin does not raise [Ca2+]i, which would be expected for a Ca2+-ATPase inhibitor, and prevents an elevation of [Ca2+]i by the potent Ca2+ pump inhibitors, 2,5-di(tert-butyl)-1,4-benzohydroquinone (BHQ) and trilobilide. This effect may provide a mechanism for the role of curcumin as an anti-cancer agent.</p
Carlow Association with the John Vaughan cup
No full textColour group portrait photograph of seven people. The two young boys at the front are holding up the cup. Mounted in a 'Barkers of Kensington' card folder. A handwritten note on the mount reads 'Carlow Ass 1980 with John Vaughan cup' and identifies the group as 'C Monaghan, J Monaghan, P Shaw, B Shaw, A Fennell (T Fennell, Fergal Shaw front)'. Photograph by B C Lockyer, copyright B C Lockyer.
Note: the photograph is not reproduced here for data protection reasons
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Literate life
No full textHost: F. MacDonaldExecutive producer: P. FlemingtonSeries produced by: L. RampenLiterate life produced by P. Lockyer for B.I.U.; Narrator: F. McDonaldSeries produced by Métavidea for Vision TVVideo presents a biography of Robert McClure
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
A real-time flood monitoring index based on daily effective precipitation and its application to Brisbane and Lockyer Valley flood events
No full textAn objective index for flood monitoring is pragmatic tool for flood early warning systems. This study investigates a novel Flood Index (I F ) based on Effective Precipitation (PE) for quantifying floods in Brisbane and Lockyer Valley. Using daily precipitation (P) data as an input, the IF was determined by calculating PE using exponentially-decaying time-reduction function considering gradual depletion of water resources over the passage of time and comparing and normalizing the PE per day with the means and standard deviations of yearly maximums in the hydrological period. Start of flood was identified for IF ≥0, severity (IF acc ) assessed by running-sum on consecutively positive IF , duration (DF) as number of days with positive IF and peak danger (IF max ) as maximum I F . The ability of IF for flood warning was verified with river height and discharge rates. The most severe flood was recoded in January 1974 in Brisbane (IF acc =118, IF max =4.4, DF = 104 days) with return period (T) =106.2 years. Next was the December 2010–January 2011 event (I F acc =61.8, IF max =2.6, DF = 89 days) with T = 53 years. For Lockyer Valley, December 2010–January 2011 was the most severe (T = 104.4 years). Consequently, we advocate the practicality of the daily IF for flood risk assessments where severity, peak danger, duration or return periods are to be considere
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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