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Journal articles on the topic 'Powerful owls'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Cooke, Raylene, Rohan Bilney, and John White. "Potential competition between two top-order predators following a dramatic contraction in the diversity of their prey base." Animal Biology 61, no. 1 (2011): 29–47. http://dx.doi.org/10.1163/157075511x554400.

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AbstractTwo sympatric native top-order predators, the sooty owl (Tyto tenebricosa tenebricosa) and powerful owl (Ninox strenua) coexist throughout much of their range in south-eastern Australia. Following European settlement, however, major changes in resource availability for these predators potentially resulted in increased competition, especially for food. This study examined ecological attributes of both species, including intersexual differences in the sooty owl, potential resource partitioning and whether competition may be occurring. Dietary overlap was high between female sooty owls and powerful owls (0.90), compared to overlap between male sooty owls and powerful owls (0.67), with three mammalian species contributing over 74% of their diets. Sooty and powerful owls coexisted throughout the study region, regularly roosting within the same vegetation types, and in similar locations, although microhabitat differences were apparent. Sooty owls displayed aseasonal breeding, although a peak in fledging in spring coincided with powerful owl breeding. Both species exclusively nested in similar size mountain grey gums (Eucalyptus cypellocarpa), however, hollow characteristics differed slightly. Significant divergence along a single niche dimension was not detected between powerful and sooty owls, as they had similar diets, habitat usage and activity times, potentially resulting in competition. Reproductive output was low for both species, however, the degree to which competitive interactions influenced this remains unknown. To minimise potential competition, longterm feral predator control and improved habitat management is recommended to increase the density and diversity of small terrestrial mammals, as this should result in diversification of the sooty owl diet, reducing dietary overlap with powerful owls.

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Bilney, Rohan J., Raylene Cooke, and John White. "Change in the diet of sooty owls (Tyto tenebricosa) since European settlement: from terrestrial to arboreal prey and increased overlap with powerful owls." Wildlife Research 33, no. 1 (2006): 17. http://dx.doi.org/10.1071/wr04128.

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The current diet of the sooty owl (Tyto tenebricosa) was determined by analysing freshly regurgitated pellets collected beneath their roosting sites in East Gippsland, Victoria. Comparisons were then made with: (i) prehistoric and historic diet from bone deposits found in cave roosts, and (ii) diet of a sympatric owl species, the powerful owl (Ninox strenua). Sooty owls consumed a large array of terrestrial mammal species before European settlement, but only three terrestrial species were detected in their current diet, a reduction of at least eight species since European settlement. To compensate, sooty owls have increased their consumption of arboreal prey from 55% to 81% of their diet. Arboreal species are also a major component of the powerful owl diet and this prey shift by sooty owls has increased dietary overlap between these two species. Predation by foxes (Vulpes vulpes) and other feral species is likely to have reduced the amount of terrestrial prey available to sooty owls since European settlement. Investigation of changes in the diet of sooty owls may offer a unique monitoring system for evaluating the ability of fox-control strategies to influence increases in numbers of critical-weight-range mammals.

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Cooke, Raylene, Hannah Grant, Isabel Ebsworth, Anthony R. Rendall, Bronwyn Isaac, and John G. White. "Can owls be used to monitor the impacts of urbanisation? A cautionary tale of variable detection." Wildlife Research 44, no. 7 (2017): 573. http://dx.doi.org/10.1071/wr16185.

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Context Due to their important ecological roles, predators are increasingly being suggested as targets for biodiversity studies investigating how they respond to landscape change and transformation. But there is limited literature investigating our capacity to accurately monitor changes in their occupancy. Aims To test the efficacy of playback surveys for monitoring owls as a basis for investigating change in owl occupancy over time. We ask whether playback is an effective tool, and whether it can be optimised to improve its utility. Methods Using the urban–forest interface of Melbourne, Australia, as a case study, we used playback techniques to survey for the presence of three owl species: the powerful owl (Ninox strenua); southern boobook (Ninox boobook); and eastern barn owl (Tyto javanica). Sites were repeat surveyed at least 16 times throughout the year and occupancy models were developed to establish how season and temperature influence nightly detection probabilities of owls. Key results All three species of owl were detected through playback survey approaches, but the detection probabilities varied greatly between species and across seasons and temperature conditions. Eastern barn owls are poor candidates for playback surveys due to their low detection probabilities. The southern boobook and powerful owl are responsive to playback, but detection probabilities are influenced by season and/or temperature conditions. To optimise survey approaches, southern boobooks should be surveyed during spring and summer and the powerful owl should be surveyed on nights where the minimum temperature is near 20°C. Conclusions Although there is considerable interest in using predators such as owls to monitor biodiversity impacts associated with landscape change, poor detection rates can limit their utility. However, optimising survey approaches that consider shifting detection probabilities under different conditions such as time of year or temperature may improve the utility of predators as surrogates in biodiversity monitoring. Implications Optimising survey approaches for owls considerably reduces the window of opportunity in which to conduct surveys. To counter this, the intensity of survey effort needs to be increased during key periods. The use of highly trained citizen science teams may be one effective way of delivering such an approach.

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Cooke, R., R. Wallis, F. Hogan, J. White, and A. Webster. "The diet of powerful owls (Ninox strenua) and prey availability in a continuum of habitats from disturbed urban fringe to protected forest environments in south-eastern Australia." Wildlife Research 33, no. 3 (2006): 199. http://dx.doi.org/10.1071/wr05058.

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This study investigates the diet of six breeding pairs of powerful owls in the Yarra Valley Corridor in Victoria, Australia, and compares prey consumption with prey availability. The six sites represent a continuum of habitats, ranging from urban Melbourne, through the urban fringe interface to a more forested landscape. We found that powerful owls in the Yarra Valley Corridor are reliant almost exclusively on arboreal marsupial prey as their preferred diet, with 99% of their overall diet comprising four arboreal marsupial species. These four species (the common ringtail possum, common brushtail possum, sugar glider and greater glider) were also the most abundant species observed while spotlighting; however, their abundance varied along the continuum. There was a strong positive relationship with the presence of these species in the diet and their site-specific availability, indicating that the powerful owl is a generalist hunter, preying on the most available prey at a given site and in a given season. This study suggests that food resources are high in these disturbed urban fringe sites and it is unlikely that food availability in urban environments will limit the potential survival of urban powerful owls.

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Isaac, Bronwyn, John White, Daniel Ierodiaconou, and Raylene Cooke. "Response of a cryptic apex predator to a complete urban to forest gradient." Wildlife Research 40, no. 5 (2013): 427. http://dx.doi.org/10.1071/wr13087.

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Context Urbanisation is one of the most damaging landscape-scale disturbance processes leading to significant and potentially irreversible changes in biodiversity. How apex predators respond to urbanisation is poorly understood, largely because of their low density and low detectability. Given the important functional roles of apex predators in ecosystems, it is critical that research investigates how they respond to urbanisation, and how urban systems can be designed to better support apex predators. Aims The present research aims to examine how an avian apex predator, the powerful owl, responds to a complete urban–forest gradient in southern Victoria, Australia. Specifically, the research aims to understand the environmental attributes that drive habitat suitability for powerful owls across the urban–forest gradient. Methods Using a total of 683 independent field- and atlas-derived records of powerful owls across the study site, the research takes a presence-only modelling approach. The presence points were modelled against a series of geospatial variables that were determined a priori on the basis of the known ecology of powerful owls. Key results Potential powerful owl habitat declined in a dramatic fashion in response to increasing levels of urbanisation, ranging from 76% of the forest landscape to 21% of the urban landscape. Powerful owl habitat availability across the urban–forest gradient is positively influenced by tree cover, productivity (normalised difference vegetation index) and proximity to river systems and riparian vegetation. Conclusions Presence-only modelling has provided a useful way for investigating the response of an apex predator to a gradient of urbanisation. Although powerful owl habitat availability is negatively reduced by urbanisation, there is significant scope to manage urban landscapes to either maintain or improve the availability of habitat across the gradient. Implications High resource-requiring species, such as apex predators, have the capacity to be detrimentally affected by urbanisation processes. Presence-only modelling, however, provides a useful tool for investigating how these difficult-to-detect species are affected by urbanisation, and ultimately inform how landscapes can be managed to maximise habitat availability for apex predators.

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Subach, Aziz. "Training barn owls: a powerful tool in ecological experiments." Israel Journal of Ecology and Evolution 62, no. 3-4 (May 18, 2016): 149–54. http://dx.doi.org/10.1080/15659801.2015.1123851.

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Predators affect prey directly by predation and indirectly by triggering behavioral responses that aim at reducing predation risk. In this paper, I present a method for training an avian predator which can allow separating between its direct and indirect effects on prey in various experimental setups. Barn owls are found to be a valuable tool for empirically testing different hypotheses related to predator-prey interactions, population dynamics, and inter-specific competition, all performed in the field using authentic rodent prey and their natural predators. Barn owls are raised and trained to participate in field experiments using classical conditioning, and are trained either to catch rodents or only to fly above a certain area without making any attempt to attack the prey, simulating solely predation risk. Body mass is a crucial factor in the training procedure, and I thus define five body mass ranges that characterize different behavioral stages in the training of owls. A logistic model is used to calculate and to predict changes in the body mass during the growth and training periods of owls. Finally, I discuss several possible implications of the usage of trained barn owls in empirical studies.

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Knudsen, Eric I. "Fused Binocular Vision is Required for Development of Proper Eye Alignment in Barn Owls." Visual Neuroscience 2, no. 1 (January 1989): 35–40. http://dx.doi.org/10.1017/s0952523800004302.

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AbstractThe eyes of adult barn owls (Tyto alba) are virtually fixed in the head in positions that are highly consistent from one individual to the next. However, early in development the eyes are exodeviated; the eyes achieve their adult positions during the owl's second month of life. Disruption of binocular vision in baby owls leads to permanent, highly abnormal eye positions and interocular alignment. Of three owls raised with both eyelids sutured closed, two developed exotropic strabismus and one developed esotropic strabismus. Two owls reared with monocular vision developed esotropic strabismus, whereas three owls reared with fused, but optically deviated binocular vision developed normal eye positions. Thus, the alignment of the eyes in adults results from an active process that depends on fused binocular vision during early life.Extracellular microelectrode recordings from the optic tecta of strabismic owls reveal that many units retain binocular inputs from corresponding points of the two eyes: the left-eye and right-eye receptive fields of individual units are misaligned by an amount predicted by the direction and magnitude of the strabismus. These results indicate that an innately determined pattern of connections in the brain anticipates the eye positions necessary to achieve binocular fusion. The hypothesis is put forth that the powerful activation of such binocular neurons by strong, synchronous inputs from the two eyes is the signal required by the optimotor system that proper eye alignment has been attained.

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A. McCarthy, Michael, Alan Webster, Richard H. Loyn, and Kim W. Lowe. "Uncertainty in assessing the viability of the Powerful Owl Ninox strenua in Victoria, Australia." Pacific Conservation Biology 5, no. 2 (1999): 144. http://dx.doi.org/10.1071/pc990144.

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A model of the metapopulation dynamics of Powerful Owls Ninox strenua in Victoria, Australia is described, and its parameters were derived from available data. Sensitivity analysis indicates that the survival rate of adult owls is the most important parameter in the model. Because estimates of this parameter are uncertain, the predictions of the model are uncertain and unreliable. Using the best estimates of the parameters, the predicted risk of decline across Victoria is low, and local populations larger than 100 pairs have a low risk of extinction. If the lower estimates of adult and sub-adult survival are used, the abundance of Powerful Owls across Victoria is predicted to decline exponentially and faces extinction from deterministic forces. A prohibitively large field programme involving monitoring of individuallyrecognizable owls would be required to obtain an improved estimate of adult survival, and so further use of population viability analysis to assess the adequacy of particular management strategies is unlikely to be useful for this species. An alternative is to establish a long-term monitoring programme to document changes in abundance of the species in logged and unlogged landscapes.

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Lavazanian, E., R. Wallis, and A. Webster. "Diet of powerful owls (Nixox strenua) living near Melbourne, Victoria." Wildlife Research 21, no. 6 (1994): 643. http://dx.doi.org/10.1071/wr9940643.

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The diet of powerful owls (Ninox strenua) living at Christmas Hills, 35 km north-east of Melboume, was examined by analysis of 686 regurgitated pellets collected over two years. Mammalian prey was found in 89%, insects in 13%, vegetation in 11% and birds in 10% of the pellets. Of the mammals, common ringtail possums occurred most frequently in the pellets over the year. There was no seasonal difference in the frequency of occurrences of common ringtail possums and sugar gliders in pellets. However, common brushtail possums were more likely to be taken in spring than in the other seasons. More adult common ringtail possums were taken as prey than were other age classes over the year, except in summer when high numbers of young were consumed by the owls.

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Therrien, J. F., G. Fitzgerald, G. Gauthier, and J. Bêty. "Diet–tissue discrimination factors of carbon and nitrogen stable isotopes in blood of Snowy Owl (Bubo scandiacus)." Canadian Journal of Zoology 89, no. 4 (April 2011): 343–47. http://dx.doi.org/10.1139/z11-008.

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Analysis of carbon (13C/12C) and nitrogen (15N/14N) stable isotope ratios (hereafter δ13C and δ15N, respectively) in animal tissues is a powerful tool in food-web studies. However, isotopic ratios of prey are not transmitted directly to a consumer, as a diet–tissue discrimination factor (denoted Δ) occurs between sources and consumer’s tissues. An accurate assessment of the diet of a consumer with stable isotopes thus requires that the Δ13C and Δ15N of the studied species are known. Our aim was to establish Δ13C and Δ15N values in the Snowy Owl ( Bubo scandiacus (L., 1758)). Moreover, we assessed the potential effect of ethanol preservation of blood samples on δ13C and δ15N values. We kept four captive adult Snowy Owls on a pure diet of mice for ≥6 weeks. We then collected mouse muscle and blood samples from the owls and analyzed their δ13C and δ15N values. Δ13C and Δ15N values (mean ± SE) for owl blood were +0.3‰ ± 0.2‰ and +1.9‰ ± 0.1‰, respectively. These values are the first discrimination factors ever reported in Strigiformes and are lower, for Δ15N, than those obtained in terrestrial carnivores and other bird species, including falcons. Preservation in ethanol did not significantly affect δ13C and δ15N values.

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Fulton, Graham R., Grace R. Fulton, and Yee Wan Cheung. "A comparison of urban and peri-urban/hinterland nocturnal birds at Brisbane, Australia." Pacific Conservation Biology 26, no. 3 (2020): 239. http://dx.doi.org/10.1071/pc19042.

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This study identified and compared the abundance and detectability of owls and other nocturnal birds, over 1 year, in an urban parkland of a Brisbane suburb to a peri-urban/hinterland/rainforest site 27km away. Five owl species were detected, but only at the peri-urban/hinterland/rainforest site, they were powerful owl Ninox strenua, southern boobook Ninox boobook, sooty owl, Tyto tenebricosa, masked owl Tyto novaehollandiae and barn owl Tyto alba. A single southern boobook was detected outside the study, at the urban site. The tawny frogmouth Podargus strigoides was only detected at the urban site whereas the plumed frogmouth Podargus ocellatus plumiferus was only detected at the rainforest site. The bush stone-curlew Burhinus grallarius was the most frequently detected nocturnal species, yet we discuss its recent decline in Brisbane. Incidentally recorded mammals, reptiles, frogs and diurnal birds are given. The rainforest site had more scansorial mammals whereas the urban site had more possums, dogs and cats.

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PAVEY, CHRIS R., and ANITA K. SMYTH. "Effects of avian mobbing on roost use and diet of powerful owls,Ninox strenua." Animal Behaviour 55, no. 2 (February 1998): 313–18. http://dx.doi.org/10.1006/anbe.1997.0633.

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Isaac, Bronwyn, Raylene Cooke, Daniel Ierodiaconou, and John White. "Does urbanization have the potential to create an ecological trap for powerful owls (Ninox strenua)?" Biological Conservation 176 (August 2014): 1–11. http://dx.doi.org/10.1016/j.biocon.2014.04.013.

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Gutfreund, Yoram, and Eric I. Knudsen. "Adaptation in the Auditory Space Map of the Barn Owl." Journal of Neurophysiology 96, no. 2 (August 2006): 813–25. http://dx.doi.org/10.1152/jn.01144.2005.

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Auditory neurons in the owl’s external nucleus of the inferior colliculus (ICX) integrate information across frequency channels to create a map of auditory space. This study describes a powerful, sound-driven adaptation of unit responsiveness in the ICX and explores the implications of this adaptation for sensory processing. Adaptation in the ICX was analyzed by presenting lightly anesthetized owls with sequential pairs of dichotic noise bursts. Adaptation occurred in response even to weak, threshold-level sounds and remained strong for more than 100 ms after stimulus offset. Stimulation by one range of sound frequencies caused adaptation that generalized across the entire broad range of frequencies to which these units responded. Identical stimuli were used to test adaptation in the lateral shell of the central nucleus of the inferior colliculus (ICCls), which provides input directly to the ICX. Compared with ICX adaptation, adaptation in the ICCls was substantially weaker, shorter lasting, and far more frequency specific, suggesting that part of the adaptation observed in the ICX was attributable to processes resident to the ICX. The sharp tuning of ICX neurons to space, along with their broad tuning to frequency, allows ICX adaptation to preserve a representation of stimulus location, regardless of the frequency content of the sound. The ICX is known to be a site of visually guided auditory map plasticity. ICX adaptation could play a role in this cross-modal plasticity by providing a short-term memory of the representation of auditory localization cues that could be compared with later-arriving, visual–spatial information from bimodal stimuli.

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Webster, Alan, Raylene Cooke, Glen Jameson, and Robert Wallis. "Diet, Roosts and Breeding of Powerful Owls Ninox strenua in a Disturbed, Urban Environment: A Case for Cannibalism? Or a Case of Infanticide?" Emu - Austral Ornithology 99, no. 1 (March 1999): 80–83. http://dx.doi.org/10.1071/mu99009d.

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Mo, Matthew, Peter Hayler, and Antonia Hayler. "Fish-catching by a juvenile Powerful Owl Ninox strenua." Australian Field Ornithology 33 (2016): 112–15. http://dx.doi.org/10.20938/afo33112115.

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Bilney, Rohan J. "Geographic variation in the diet of the powerful owl (Ninox strenua) at a local scale." Australian Journal of Zoology 61, no. 5 (2013): 372. http://dx.doi.org/10.1071/zo13048.

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This study reports the diet of the powerful owl (Ninox strenua) in East Gippsland, from a dataset of 2009 vertebrate prey items collected from 53 sites. Mammals dominated the diet at all sites, but birds were also consumed regularly. The greater glider (Petauroides volans) was the dominant dietary item across the region in terms of both frequency of consumption and biomass contribution. There was geographical dietary variation between coastal and foothill forest sites, with the sugar glider (Petaurus breviceps) and birds consumed more frequently in foothill forests, whereas the common ringtail possum (Pseudocheirus peregrinus) was frequently consumed only in coastal forests. Typically, a higher percentage of powerful owl diet comprised birds closer to cleared land. The dietary reliance upon hollow-dependent mammals in foothill forests (averaging >70%) is of conservation concern, especially when non-hollow-dependent prey are rare. Forest management activities, especially logging, that reduce densities of hollow-bearing trees in the landscape are therefore likely to decrease the long-term carrying capacity of the landscape for the powerful owl.

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Jiang, Li Ping. "Designing Family Ontology with the Protégé OWL Plugin." Advanced Materials Research 532-533 (June 2012): 836–40. http://dx.doi.org/10.4028/www.scientific.net/amr.532-533.836.

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The growing interest in the Semantic Web and the Web Ontology Language (OWL) will reveal the potential of Description Logics in industrial projects. The rich semantics of OWL provide powerful reasoning capabilities that help build, maintain and query domain models for many purposes. However, before OWL can unfold its full potential, user-friendly tools with a scalable architecture are required. In this paper, we design and edit the family ontology using Protégé OWL Plugin, which is developed by Stanford University.

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Pavey, C. R. "Food of the Powerful Owl Ninox strenua in Suburban Brisbane, Queensland." Emu - Austral Ornithology 95, no. 3 (September 1995): 231–32. http://dx.doi.org/10.1071/mu9950231.

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McLean, Stacey. "Remote camera capture of a Powerful Owl Ninox strenua bathing and drinking." Australian Field Ornithology 35 (2018): 117–18. http://dx.doi.org/10.20938/afo35117118.

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Soderquist, Todd, and Dale Gibbons. "Home-range of the Powerful Owl (Ninox strenua) in dry sclerophyll forest." Emu - Austral Ornithology 107, no. 3 (September 2007): 177–84. http://dx.doi.org/10.1071/mu06055.

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Schulz, Martin. "The Diet of the Powerful Owl Ninox strenua in the Rockhampton Area." Emu - Austral Ornithology 97, no. 4 (December 1997): 326–29. http://dx.doi.org/10.1071/mu97049.

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Sarker, Subir, Shubhagata Das, Jade Forwood, Karla Helbig, and Shane R. Raidal. "The complete mitochondrial genome sequence of an Endangered powerful owl (Ninox strenua)." Mitochondrial DNA Part B 1, no. 1 (January 1, 2016): 722–23. http://dx.doi.org/10.1080/23802359.2016.1229588.

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Mo, Matthew, David R. Waterhouse, Peter Hayler, and Antonia Hayler. "Observations of mobbing and other agonistic responses to the Powerful Owl Ninox strenua." Australian Zoologist 38, no. 1 (January 2016): 43–51. http://dx.doi.org/10.7882/az.2015.033.

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Sladakovic, Izidora, Cheryl R. Sangster, Graeme S. Allan, Timothy J. Portas, Cameron R. Howlett, and Uriel Blas-Machado. "CALVARIAL OSTEOSARCOMA WITH CEREBRAL COMPRESSION IN A FREE-RANGING POWERFUL OWL (NINOX STRENUA)." Journal of Zoo and Wildlife Medicine 48, no. 1 (March 2017): 208–12. http://dx.doi.org/10.1638/2013-0285.1.

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Hollingsworth, Julie, and Rohan Bilney. "A possible case of infanticide and cannibalism in the Powerful Owl Ninox strenua." Australian Field Ornithology 34 (2017): 129–30. http://dx.doi.org/10.20938/afo34129130.

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Pavey, C. R., A. K. Smyth, and M. T. Mathieson. "The Breeding Season Diet of the Powerful Owl Ninox strenua at Brisbane, Queensland." Emu - Austral Ornithology 94, no. 4 (December 1994): 278–84. http://dx.doi.org/10.1071/mu9940278.

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Zhang, Ping, and Zuo Cheng Xing. "Design and Implementation of Debugging Structure in Full-Custom CPU." Advanced Materials Research 211-212 (February 2011): 861–65. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.861.

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With the development of integrated circuit technology, it is more and more difficult for debugging circuits. Generally, to achieve a powerful debugging capability of circuits is often at the expense of larger cost of hardware overhead .This paper propose a method of debugging structure designed in full-custom CPU based on scan-set testability methods and combed with the boundary-scan technology. This debugging structure can reduces much scan chains hardware overheads and is applicable to all general-purpose CPU chips. Moreover, it owns a powerful debugging capability which is observing and controlling the internal registers of circuits from JTAG port. This structure only increases the difficulty of the circuit logic design, but greatly decreases the cost of hardware.

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HOGAN, FIONA, CHRISTOPHER BURRIDGE, RAYLENE COOKE, and JANETTE NORMAN. "Isolation and characterization of microsatellite loci to DNA fingerprint the Powerful Owl (Ninox strenua)." Molecular Ecology Notes 7, no. 6 (November 2007): 1305–7. http://dx.doi.org/10.1111/j.1471-8286.2007.01864.x.

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Albin, Jaclyn Lewis. "Eat to live: A physician’s perspective on the powerful role of food in a faithful life." Review & Expositor 117, no. 4 (November 2020): 516–25. http://dx.doi.org/10.1177/0034637320969212.

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Desperately seeking greater health of mind, body, and spirit, communities face confusing and conflicting narratives. The Church owns an opportunity to serve as a guide, revealing the intimate linkage between physical health and spiritual health. An oft-neglected topic, food is a powerful reminder of the mercy of sustenance, but our collective broken relationship with food begs for intervention. The very food we eat has the ability to promote recovery and prevent disease. Sadly, much of the modern diet does the opposite, increasing the risk for early death and disabling believers from investment in their callings. God’s redemptive message and the fruits of modern science promote clarity as we eat to heal, eat to serve, eat to celebrate, and eat to change. The Church can invest in supporting communities as they experience God’s best through nourishing daily bread and, ultimately, through the Bread of Life.

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FIORENTINO, ALESSIO, JESSICA ZANGARI, and MARCO MANNA. "DaRLing: A Datalog rewriter for OWL 2 RL ontological reasoning under SPARQL queries." Theory and Practice of Logic Programming 20, no. 6 (September 22, 2020): 958–73. http://dx.doi.org/10.1017/s1471068420000204.

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AbstractThe W3C Web Ontology Language (OWL) is a powerful knowledge representation formalism at the basis of many semantic-centric applications. Since its unrestricted usage makes reasoning undecidable already in case of very simple tasks, expressive yet decidable fragments have been identified. Among them, we focus on OWL 2 RL, which offers a rich variety of semantic constructors, apart from supporting all RDFS datatypes. Although popular Web resources - such as DBpedia - fall in OWL 2 RL, only a few systems have been designed and implemented for this fragment. None of them, however, fully satisfy all the following desiderata: (i) being freely available and regularly maintained; (ii) supporting query answering and SPARQL queries; (iii) properly applying the sameAs property without adopting the unique name assumption; (iv) dealing with concrete datatypes. To fill the gap, we present DaRLing, a freely available Datalog rewriter for OWL 2 RL ontological reasoning under SPARQL queries. In particular, we describe its architecture, the rewriting strategies it implements, and the result of an experimental evaluation that demonstrates its practical applicability.

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Lukovic, Vanja, Danijela Milosevic, Goran Devedzic, and Sasa Cukovic. "Converting OBR-scolio ontology in OWL DL." Computer Science and Information Systems 10, no. 3 (2013): 1359–85. http://dx.doi.org/10.2298/csis120611053l.

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We developed the OBR-Scolio ontology that models scoliosis as pathological state of spine using the method of extracting from the FMA reference ontology in anatomical domain and the principal ontology framework of the OBR reference ontology, which is spread over anatomy, physiology and pathology domains. Following the FMA modeling framework, OBR-Scolio ontology initially is created in Protege using its frame based representation. In order to enable more powerful reasoning support, ontology visualization, and more precise concepts? definition and description, we converted OBR-Scolio in OWL DL language, due to its higher expressiveness. The paper addresses and discusses the key conversion principles, as well as our experience in such conversion, and the results obtained from Racer reasoner.

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Sarker, Subir, Chris Lloyd, Jade Forwood, and Shane R. Raidal. "Forensic genetic evidence of beak and feather disease virus infection in a Powerful Owl, Ninox strenua." Emu - Austral Ornithology 116, no. 1 (March 1, 2016): 71–74. http://dx.doi.org/10.1071/mu15063.

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Balteiro, Isabel. "When Spanish owns English words." English Today 28, no. 1 (March 2012): 9–14. http://dx.doi.org/10.1017/s0266078411000605.

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The English language and the Internet, both separately and taken together, are nowadays well-acknowledged as powerful forces which influence and affect the lexico-grammatical characteristics of other languages world-wide. In fact, many authors like Crystal (2004) have pointed out the emergence of the so-called Netspeak, that is, the language used in the Net or World Wide Web; as Crystal himself (2004: 19) puts it, ‘a type of language displaying features that are unique to the Internet […] arising out of its character as a medium which is electronic, global and interactive’. This ‘language’, however, may be differently understood: either as an adaptation of the English language proper to internet requirements and purposes, or as a new and rapidly-changing and developing language as a result of a rapid evolution or adaptation to Internet requirements of almost all world languages, for whom English is a trendsetter. If the second and probably most plausible interpretation is adopted, there are three salient features of ‘Netspeak’: (a) the rapid expansion of all its new linguistic developments thanks to the Internet itself, which may lead to the generalization and widespread acceptance of new words, coinages, or meanings, hundreds of times faster than was the case with the printed media. As said above, (b) the visible influence of English, the most prevalent language on the Internet. Consequently, (c) this new language tends to reduce the ‘distance’ between English and other languages as well as the ignorance of the former by speakers of other languages, since the ‘Netspeak’ version of the latter adopts grammatical, syntactic and lexical features of English. Thus, linguistic differences may even disappear when code-switching and/or borrowing occurs, as whole fragments of English appear in other language contexts. As a consequence of the new situation, an ideal context appears for interlanguage or multilingual word formation to thrive: puns, blends, compounds and word creativity in general find in the web the ideal place to gain rapid acceptance world-wide, as a result of fashion, coincidence, or sheer merit of the new linguistic proposals.

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Parpart, Jane. "Rethinking silence, gender, and power in insecure sites: Implications for feminist security studies in a postcolonial world." Review of International Studies 46, no. 3 (December 10, 2019): 315–24. http://dx.doi.org/10.1017/s026021051900041x.

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AbstractMy current interest in silence, gender, and power owes much to discussions with Marysia Zalewski over the years. Much of my work has focused on masculinity, gender relations, and gender hierarchies with a focus on security and development in conflict zones. More recently, I have begun to explore silence not as a sign of disempowerment, but as a powerful force that can be used in many ways. This approach enables a more multi-levelled understanding of silence and voice and their many interactions. It has much to tell the Global North, where we prize voice and often underestimate the power of silence.

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Mourik, Vincent, and Allan Richards. "Predation of a Grey Goshawk Accipiter novaehollandiae with a Powerful Owl Ninox strenua as the likely predator." Australian Field Ornithology 36 (2019): 5–10. http://dx.doi.org/10.20938/afo36005010.

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PAVEY, C. R. "Impact of powerful owl predation on a population of the greater glider: A response to Kavanagh (1988)." Austral Ecology 17, no. 4 (December 1992): 463–67. http://dx.doi.org/10.1111/j.1442-9993.1992.tb00829.x.

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Tang, Ai Tao, Zhi Qiang Yuan, Fu Sheng Pan, and Hai Ding Liu. "A Database Prototype of Magnesium Alloy Based on Internet." Materials Science Forum 546-549 (May 2007): 451–54. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.451.

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In order to make full use of magnesium alloy resources under the environment of the network, an integrated magnesium alloy database system prototype has been developed, which consists of five modules, including database utilizing, files management, report printing, data inquiry and system utilities. This system gives more conveniences to user’s work by adopting three-tier architecture and using advanced technologies such as ASP (Active Server Pages). The user who only owns a global browser can conveniently use this database system without pre-installing any other application softwares. This database system prototype is a powerful tool to cut down the cost and time for developing new magnesium alloys.

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Mo, Matthew, Peter Hayler, David R. Waterhouse, and Antonia Hayler. "Observations of hunting attacks by the Powerful Owl Ninox strenua and an examination of search and attack techniques." Australian Zoologist 38, no. 1 (January 2016): 52–58. http://dx.doi.org/10.7882/az.2015.028.

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Isaac, Bronwyn, Raylene Cooke, Dianne Simmons, and Fiona Hogan. "Predictive mapping of powerful owl (Ninox strenua) breeding sites using Geographical Information Systems (GIS) in urban Melbourne, Australia." Landscape and Urban Planning 84, no. 3-4 (March 2008): 212–18. http://dx.doi.org/10.1016/j.landurbplan.2007.08.002.

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Hogan, Fiona E., and Raylene Cooke. "Insights into the breeding behaviour and dispersal of the Powerful Owl (Ninox strenua) through the collection of shed feathers." Emu - Austral Ornithology 110, no. 2 (June 2010): 178–84. http://dx.doi.org/10.1071/mu09116.

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KAVANAGH, RODNEY P. "The impact of predation by the powerful owl, Ninox strenua, on a population of the greater glider, Petauroides volans." Austral Ecology 13, no. 4 (December 1988): 445–50. http://dx.doi.org/10.1111/j.1442-9993.1988.tb00992.x.

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KAVANAGH, R. P. "The impact of predation by the powerful owl Ninox strenua on a population of the greater glider Petauroides volans." Austral Ecology 17, no. 4 (December 1992): 469–72. http://dx.doi.org/10.1111/j.1442-9993.1992.tb00830.x.

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Cooke, Raylene, Anthony R. Rendall, Michael A. Weston, Nick Porch, Nick Bradsworth, and John G. White. "Photography can determine the sex of a predator with limited sexual dimorphism: A case study of the powerful owl." Global Ecology and Conservation 22 (June 2020): e00959. http://dx.doi.org/10.1016/j.gecco.2020.e00959.

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Zhang, Deng Pan, Xu Han, and Zhi Qiang Gao. "Research on Hydraulic Pressure Detection System for Mine." Applied Mechanics and Materials 321-324 (June 2013): 1477–81. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.1477.

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According to mine hydraulic testing requirement, the article puts forward an online hydraulic testing method, which is used in mine hydraulic cylinder,three-way valve and so on. It makes real-time, multi-channel hydraulic pressure signal gathering and processing procedure come true, thus completes the online assessment for mine hydraulic testing. The method uses a multi-thread, multi-channel, multi-buffer synchronous detection mode by combining soft and hardware hydraulic test features and establishes data collecting and interactive model as well as data display and storage model, which owns a powerful interactive interface. It can display real-time multi-channel pressure histogram and waveform graph, which also has function of personalized settings, real-time detection, permanent preservation, history record inquiry and report print. Furthermore, this mechod reflects the real-timing and reliability of system in practical application.

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CESARSKY, CATHERINE, and RICHARD WEST. "Optical and infrared astronomy in the 21st century – the continuing revolution." European Review 10, no. 2 (May 2002): 263–83. http://dx.doi.org/10.1017/s1062798702000194.

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For some decades, astronomy and astrophysics have undergone a technological and conceptual revolution. Supported by ever more powerful telescopes and instruments on the ground and in space, the volume and quality of new insights is incredible, both in terms of physical understanding of individual celestial objects and the grand evolutionary scheme. New and powerful observational facilities such as the ESO Very Large Telescope (VLT) are opening new horizons, from the nearby solar system to the corners of the Milky Way galaxy in which we live and, not least, towards the vast expanses in time and space of the remote and early Universe. The next generation of ultra-sensitive optical-infrared telescopes such as Herschel and ALMA will be ready within this decade and concepts are being elaborated for the construction of super-giant telescopes like the 100 m optical/IR OWL, the ‘Overwhelmingly Large telescope’. With these impressive developments, and in a true spirit of exploration, astronomers can now look forward to great research opportunities, in a resounding manifestation of the continuous drive towards a better understanding of our cosmic surroundings and of our own origins, so characteristic for enlightened humankind of every age.

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Mullender, Richard. "The Scattergun and the Owl: Brian Simpson on Herbert Hart." Canadian Journal of Law & Jurisprudence 26, no. 2 (July 2013): 491–513. http://dx.doi.org/10.1017/s0841820900006160.

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While recognizing that H.L.A. Hart’s The Concept of Law has exerted a powerful and continuing influence on general jurisprudence, Brian Simpson finds it wanting. Simpson argues that Hart’s determination to make broad generalizations about the nature of a legal system deflected him from the important task of attending to the particularities of actually-existing law. Moreover, he identifies Hart as a ‘hedgehog’ in Isaiah Berlin’s sense: a thinker whose work gives expression to a ‘single central vision’ (in Hart’s case, law as a system of rules). This critique of Hart leads Simpson to argue for an approach to legal philosophy that is more attentive to the details of existing legal systems. But Simpson fails to present his readers with the theoretical approach for which he argues. This essay seeks to make good this deficiency in his response to The Concept of Law. To this end, it uses the writings of two philosophers on whom Simpson draws (Berlin and Michael Oakeshott) with the aim of enriching Hart’s contribution to general jurisprudence. Moreover, it finds in this Hart-Oakeshott-Berlin-based interdisciplinary theory (HOBBIT) a basis on which to throw much light on Britain as a distinctive form of politico-legal life.

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Özyürek, Esra G. "“Feeling Tells Better Than Language”: Emotional Expression and Gender Hierarchy in the Sermons of Fethullah Gülen Hocaefendİ." New Perspectives on Turkey 16 (1997): 41–51. http://dx.doi.org/10.1017/s0896634600002624.

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Over the past two years, the televised sermons of Fethullah Hocaefendi have thrust him into the public limelight, lending his name celebrity status as a prominent religious-cum-political figure. His long standing influence as the leader of one of the most powerful Islamic communities in contemporary Turkey, Nur Cemaati, is now common public knowledge. Currently, this group owns one of the largest mass circulating newspapers (Zaman), a TV channel (Samanyolu) and a vast network of hundreds of educational institutions extending all the way from Turkey to Central Asia. The teachings of Fethullah Gülen Hoca are widely disseminated through books as well as cassette recordings of his sermons, readily available for sale on counters of commercial bookstores. For the “secularized” public however, Fethullah Hoca's renown extends beyond his religious-cum-political prominence. He is famous for the fact that he weeps ecstatically during his sermons, contrary to what is expected of a man in Turkey today.

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Zakharchenko, Pavel, Anna Kostenko, Tatyana Kungurtseva-Mashchenko, and Illona Gorbachova. "Modeling expectations of resort-tourist market of Ukraine." SHS Web of Conferences 65 (2019): 05001. http://dx.doi.org/10.1051/shsconf/20196505001.

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In modern world economy resort recreations is one of the most high-profitable spheres of managing. Ukraine owns the powerful resort and tourist potential, to which effective development can bring a real economic benefit. For this purpose, it is necessary to form of system concept for the development of such systems, which are integral part of the economic transformations. Transformational processes are displayed in shifts in consumption, requirements and ways of their satisfaction. The market environment needs are in the form of demand and ways to meet them mediated by the market in the form of market expectations. They are important for forecasting the behavior of the market of resort and tourist products. As a result, of research was the model of dynamics of trust of the market to transformational changes of the resort and tourist sphere of Ukraine is constructed. Scenarios of change of level of trust at various values of parameters, which correspond to stages of development of transformational economy are received.

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Loreto, Paola. "Audial and Visual Conversation in Mary Oliver's Dog Songs: Language as a Trans-Species Faculty." Ecozon@: European Journal of Literature, Culture and Environment 12, no. 1 (February 10, 2021): 153–66. http://dx.doi.org/10.37536/ecozona.2021.12.1.3677.

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The essay investigates Mary Oliver’s reflection upon, and questioning of, language as a marker of human/nonhuman divide as it unfolds in her second, 2013 “species collection” on dogs, Dog Songs (her first one being Owls and Other Fantasies, her 2006 similar collection, portraying her ways of communicating with birds). Through an exploration of both the visual and audial modes of Oliver’s conversations with the dogs she owned in her life, and treated as companions, this study demonstrates that the poet held an attitude toward the nonhuman which in contemporary theoretical terms would be defined as an “indistinction approach” to the animal question (Calarco 2015). In Dog Songs, Oliver portrays a proximity between humans and animals that ultimately preserves an unavoidable distance. Her writing exploits both her intuition of animals’ capacity for agency and creativity—which accompanies the de-emphasizing of human uniqueness—and her consciousness that we need tropes from human experience to convey our perception of nonhuman ways of life. Moreover, through her representation of the animal’s gaze, of a powerfully ironic reversal of the aims (and effects) of the pathetic fallacy, and of narrative empathy, she proves that an imaginative use of language makes poetry a distinct space for our efforts to envisage an ecosystem that animals may inhabit as our equals.

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