496 research outputs found
Predation domes data and code
No full textData and code for "Predation domes: in-situ field assays to measure predatory behaviours by fish (2023) M. Paula Sgarlatta, Rucha Karkarey, Shannen M. Smith, Iain M. Suthers, Alistair G.B. Poore, Adriana Vergés
New Models for Data Envelopment Analysis. Measuring Efficiency Outwith the VRS Frontier
No full textSome models are presented in this paper which extend the concept of measuring superefficiency to the useful case of variable returns-to-scales (VRS), thus enabling the ranking of efficient as well as inefficient units. Two models, namely the Universal Radial Model and the Universal Additive Model, are presented that also have strong invariance properties (units and translation invariance). For both of these models a method for normalising the efficiency scores on a (0-1+) scale is presented. These models have been implemented in a software package and applied to the ranking of units in an industrial context.Data envelopment analysis (DEA), Superefficiency, Universal models
Tribute for Professor Christopher T. Taggart 1951-2024
No full textN/AThe presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
An investigation of group IV alloys and their applications in bipolar transistors
No full textThis thesis investigates the use of carbon in group IV alloys and their potential uses in bipolar transistors. The first part of the thesis investigates the ability of carbon to suppress transient enhanced diffusion in SiGe heterojunction bipolar transistors, whilst the second part deals with the impact of carbon incorporation on the electrical properties of polycrystalline silicon and silicon-germanium films. A background doping concentration (10"2"0cm"-"3) of C has been introduced into the base of SiGe HBTs with the aim of studying the effects of C on TED of B from the base. An electrical method is used to extract the bandgap narrowing in the base of SiGe and SiGe:C HBTs through measurements of the temperature dependence of I_c at different C/B reverse biases. The method is very sensitive to small amounts of dopant out-diffusion from the base and hence is ideal for determining the effect of C on TED. Extracted BGN values of 115meV and 173meV were obtained for the SiGe and SiGe:C HBTs respectively, for a C/B reverse bias of 0V. Increasing the C/B reverse bias to 1V increased the extracted BGN of the SiGe HBT to 145meV, but left the SiGe:C value unchanged. This demonstrates that no parasitic energy barrier exists in the SiGe:C HBT and that TED has been suppressed. The effect of carbon position and concentration has been studied by introducing a peak C concentration of 10"2"0cm"-"3 in the collector and 1.1x10"1"9cm"-"3 or 1.5x10"1"9cm"-"3 C in the base. From these measurements it has been shown that TED is only suppressed in the device with 1.5x10"1"9cm"-"3 C in the base, indicating that a C concentration of 1.5x10"1"9cm"-"3 is needed to suppress TED and that the C needs to be co-located with the B profile. The effects of carbon on the electrical properties of polycrystalline Si and SiGe films have been investigated. The resistivity, Hall mobility (#mu#_H) and effective carrier concentration (N_E_F_F) of n- and p-type polySi_1_-_yC_y and polySi_0_._8_2_-_yGe_0_._1_8C_y layers have been measured for carbon contents between 0% and 8%. For the n-type polySi_1_-_yC_y and polySi_0_._8_2_-_yGe_0_._1_8C_y layers, the addition of small amounts of C (#<=# 0.9%) was found to severely increase the resistivity of the layers, caused by a drop in N_E_F_F and #mu#_H. In contrast, for the p-type polySi_1_-_yC_y and polySi_0_._8_2_-_yGe_0_._1_8C_y layers, the effect of C on the resistivity was much less dramatic for C concentrations up to 7.8%. Measurements of the grain boundary energy barriers for the n-type polySi_1_-_yC_y and polySi_0_._8_2_-_yGe_0_._1_8C_y layers, extracted from the temperature dependence of the resistivity, showed that there was a square law dependence on carbon content. This is consistent with carbon increasing the grain boundary trap density. In contrast, the grain boundary energy barriers in the p-type polySi_1_-_yC_y layers exhibited a linear dependence on carbon content. This behaviour of C in p-type layers has been attributed to a shift in the dominant trap energy level towards the valence band at high C concentrations. (author)SIGLEAvailable from British Library Document Supply Centre- DSC:DXN039397 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Fully Automated Luxury Gay Space Communism: The Case of Iain M. Banks’ Culture
No full textThe Culture series created by Scottish author Iain (M.) Banks consists of nine novels, one novella and a couple of short stories situated in the same fictional universe. The eponymous Culture is a space-faring (and spacedwelling) civilization, a conglomeration of several humanoid species and sentient machines, most intellectually powerful beings called The Minds. Technological advances made the Culture a post-scarcity society focused on the maximization of personal freedom. The character of its socio-political structure, however, is somewhat unclear. Based on the differences between its internal and external politics, scholars have mostly placed the Culture within the categories of Utopia and Empire. This is, as the present paper argues, a false dilemma since the Culture is simultaneously both and neither of those. The main argument is that the truly adequate label for the political complexities of the Culture civilization was coined only after the untimely death of the author himself – around 2015, when the far (or, some would say, radical) left activists on the Internet coined the phrase Fully Automated Luxury Gay Space Communism. Using both writings of Marx and Engels on the features of communism and Ollman’s systematization of these features, I will try to show that this is indeed the case.The Culture series created by Scottish author Iain (M.) Banks consists of nine novels, one novella and a couple of short stories situated in the same fictional universe. The eponymous Culture is a space-faring (and spacedwelling) civilization, a conglomeration of several humanoid species and sentient machines, most intellectually powerful beings called The Minds. Technological advances made the Culture a post-scarcity society focused on the maximization of personal freedom. The character of its socio-political structure, however, is somewhat unclear. Based on the differences between its internal and external politics, scholars have mostly placed the Culture within the categories of Utopia and Empire. This is, as the present paper argues, a false dilemma since the Culture is simultaneously both and neither of those. The main argument is that the truly adequate label for the political complexities of the Culture civilization was coined only after the untimely death of the author himself – around 2015, when the far (or, some would say, radical) left activists on the Internet coined the phrase Fully Automated Luxury Gay Space Communism. Using both writings of Marx and Engels on the features of communism and Ollman’s systematization of these features, I will try to show that this is indeed the case
Cryptosporidiosis decline after regulation, England and Wales, 1989-2005
No full textSince new drinking water regulations were implemented in England and Wales in 2000, cryptosporidiosis has been significantly reduced in the first half of the year but not in the second. We estimate an annual reduction in disease of 905 reported cases and ≈6,700 total cases
Demokrasi dalam Pandangan M. Quraish Shihab
No full textThis research discusses democracy in the pandagan M. Quraysh Shihab. The reason behind this writing is that the author wants to spread democracy from a different point of view, namely from the Indonesian interpreter, namely M. Quraysh Shihab through his interpretation of the verses of the Qur'an. The formulation of this research problem is M. Quraysh Shihab's view of democracy. The purpose of this study was to find out what M. Quraysh Shihab said about democracy. Research is the study of figures, research methods used literature. The primary data of the work was written by M. Quraysh Shihab and secondary data in the form of writings of others about the thought of M. Quraysh Shihab. The results of M. Quraysh Shihab's research do not give a sense of democracy. But say joint decisions or so-called shura are a common feature of democracy. He argued that the implementation of democratic principles in Islam is different from that understood and practiced in Western countries. interpret the verses on shura namely: al-Baqarah verse 233, Āli 'Imrān verse 159, asy-Syūrā verse 38. The result of his interpretation is: First deliberation begins from the family. God is All-forgiving, All-merciful. Third, the problem that can be dimusyawarakan is a problem that has no provisions in the Qur'an and Sunnah
Entrainment and advection of larval sardine, Sardinops sagax, by the East Australian Current and retention in the western Tasman Front
No full textThe poleward flowing East Australian Current (EAC) drives sporadic upwelling, entrains coastal water and forms the western Tasman Front (wTF), creating a mosaic of water types and larval transport routes along south eastern Australia. The spatial distribution, otolith chemistry and growth rates of larval sardine (Sardinops sagax) were examined to infer spawning location and larval transport. A gradient of increasing larval size from north to south along the shelf was not detected but was evident between the shelf and offshore in the wTF. Here larvae were larger and older. Based on the occurrence of newly hatched larvae, spawning by S. sagax between southern Queensland and mid New South Wales (NSW) was more extensive than previously reported. The otolith chemistry from two wTF larval size classes differed, implying different origins. The otolith chemistry of wTF post-flexion larvae was similar to larvae from northern NSW, whereas wTF flexion larvae were similar to larvae observed nearby from mid-NSW. Two possible larval transport routes, direct and indirect, are inferred from otolith chemistry, current velocities and a previously published particle tracking study. Either larvae from northern NSW were advected south and entrained with younger larvae directly into the wTF, or larvae from a range of shelf regions were advected around the southern edge of an anticyclonic eddy, to join younger larvae directly entrained into the wTF. Based on the co-occurrence of larval ages and sizes in the wTF and their advection routes, the wTF appears to be an important larval retention zone.Thomas J. Mullaney, Bronwyn M. Gillanders, Elizabeth C. Heagney, and Iain M. Suther
Integrated approach to determining stock structure: implications for fisheries management of sardine, Sardinops sagax, in Australian waters
No full textThe stock structure of small pelagic fishes is difficult to determine due to their patchy distribution and complex movement patterns. We integrate genetic, morphological, otolith, growth, reproductive and fishery data collected over 60 years using a Stock Differentiation Index (SDI). The absence of strong separation (SDI > 0.66) of most adjacent sub-groups supports the hypothesis that sardine (Sardinops sagax) in Australian waters is a meta-population, but with effective isolation of at least four stocks: south western coast (off Western Australia); Great Australian Bight and Spencer Gulf; Bass Strait and Port Phillip Bay (off Victoria and Tasmania); and eastern Australia. There is also evidence for sub-division of the stocks off Western Australia and the east coast. We examine age-related and inter-annual patterns of stock structure off South Australia and the east coast through integrated analysis of otolith chemistry and shape data. For the east coast, there were significant differences between northern and southern sub-groups for all three age cohorts examined. Fish were correctly classified to sampling region with a high degree of success (>80%), supporting the sub-division of the east coast stock suggested by the SDI. For South Australia, there were significant differences among two sub-groups for most cohorts examined across two sampling years. However, spatial discriminatory power was poor, with allocation success ranging from 48 to 64%. Results suggest that movements between the two South Australian sub-groups may vary among years, which is consistent with inconclusive SDI (0.5). Integrating historical data using a SDI is suitable for identifying fishery management units. Integrated analysis of otoliths from archival collections is useful for examining temporal variability in stock structure, which is also important for fisheries management. Our findings are relevant to fisheries where sustainability risks are increased by management arrangements based on assumptions that stock structure is absent or stable.Christopher Izzo, Tim M. Ward, Alex R. Ivey, Iain M. Suthers, John Stewart, Stuart C. Sexton, Bronwyn M. Gillander
Fully Automated Luxury Gay Space Communism: The Case of Iain M. Banks’ Culture
No full textThe Culture series created by Scottish author Iain (M.) Banks con-sists of nine novels, one novella and a couple of short stories situated in the same fictional universe. The eponymous Culture is a space-faring (and space-dwelling) civilization, a conglomeration of several humanoid species and sentient machines, most intellectually powerful beings called The Minds. Technological advances made the Culture a post-scarcity society focused on the maximization of personal freedom. The character of its socio-political structure, however, is somewhat unclear. Based on the differences between its internal and external politics, scholars have mostly placed the Culture within the categories of Utopia and Empire. This is, as the present paper argues, a false dilemma since the Culture is simultaneously both and neither of those. The main argument is that the truly adequate label for the political complexities of the Culture civilization was coined only after the untimely death of the author himself – around 2015, when the far (or, some would say, radical) left activists on the Internet coined the phrase Fully Automated Luxury Gay Space Communism. Using both writings of Marx and Engels on the features of communism and Ollman’s systematization of these features, I will try to show that this is indeed the case
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