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Journal articles on the topic "Powerful owl"
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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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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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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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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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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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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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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.
Full textDissertations / Theses on the topic "Powerful owl"
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Lavazanian, Elizabeth, and elizabeth lavazanian@deakin edu au. "Diet and habitat of the powerful owl (Ninox strenua) living near Melbourne." Deakin University, 1996. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20071204.153147.
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The diet of Powerful Owls (Ninox strenua) living at Christmas Hills, 35km north-east of Melbourne was examined by analysis of 686 regurgitated pellets collected over two years.
An aid was also developed to help identify potential mammalian prey species based on hair and skeletal characteristics. The following features were found to be most useful in distinguishing between the three species of arboreal marsupials - Common Ringtail Possum (Pseudocheirus peregrinus), Common Brushtail Possum (Trichosurus vulpecula) and Sugar Glider (Petaurus breviceps):
- Cross-sectional width of primary guard hairs.
- The size and shape of the nasal, frontal, parietal and squamosal bones of the skull.
- Dentition. The size and shape of the upper incisor, canine and premolar teeth. The size and shape of the lower incisor and premolar teeth.
- The size of the humerus. The Sugar Glider has a much smaller humerus than that of the Common Ringtail Possum and the Common Brushtail Possum. In the Common Brushtail Possum the entepicondyle ends in a very sharp point but the Common Ringtail Possum this point is not as sharp.
- The Common Ringtail Possums femur has a very prominent trochanter which projects further than that in the Common Brushtail Possum. The femur of the Sugar Glider is distinguished by having a very large depression between the condyle and the trochanter.
- The Common Brushtail Possums scapula has a narrower lower blade (relative to length) than that in the Common Ringtail Possum. The scapula of the Sugar Glider is smaller in size than that of the other two possums.The pelvic girdle Of the Common Brushtail Possum has a much wider ischium than those of the Common Brushtail Possum and the Sugar Glider. The ilium of the Sugar is much narrower and smaller than that of the other two possums
Mammalian prey was found in 89%, insects in 13% 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 occurrence 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.
The habitat of the Powerful Owl was examined by ground surveys and spotlight surveys in sixteen sites within the Warrandyte-Kinglake Nature Conservation Link. Four categories of survey sites were chosen with the following features.
Category A - Sites with a dense understorey of shrubs and small trees, as well as many old trees (>10/ha) which might be suitable for nest hollows.
Category B - Sites which lacked a dense understorey of shrubs and small trees and containing few or no old trees suitable for nest hollows.
Category C - Sites with a dense understorey of shrubs and small trees but containing few or no old trees suitable for nest hollows.
Category D - Sites which lacked a dense understorey of shrubs and small trees but having old trees (>10/ha) which might be suitable for nest hollows.
High prey densities strongly correlated with the presence of hollows at these sites.
In the light of the results, management recommendations were made for the future conservation of the Powerful Owls living at Christmas Hills. The following recommendations were particularly important:
1. Cleared or semi - cleared land within the Warrandyte Kinglake Nature Conservation Link be revegetated using indigenous species of eucalypts and waffles in order to
provide a contiguous native forest corridor for the movement of possums and gliders between the Yarra River Valley and the Kinglake Plateau.
2. Continued planting of Eucalyptus spp. and Acacia spp. in the forested areas of the Warrandyte-Kinglake Nature Conservation Link.
3. Continued protection of healthy living trees to provide a continuous supply of hollow trees.
4. No falling of dead standing trees for firewood collecting as these can provide nest hollows for prey species of the Powerful Owl.
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Alexander, Callan. "Passive acoustic monitoring of Australia’s largest owl: Using automatic species recognition to detect the powerful owl (Ninox strenua)." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/227461/1/Callan_Alexander_Thesis.pdf.
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This thesis utilises passive acoustic monitoring as a framework to study Powerful Owls (Ninox strenua) in south-east Queensland. The study quantitively describes the vocalisations of adult and chick Powerful Owls and utilises open-source machine learning software to create automated species recognition tools for use in citizen science programs. The results indicate that call characteristics historically used to sex adult Powerful Owls are likely unreliable. Testing of the automated call recognisers resulted in highly promising outcomes, which suggests that they are likely to be valuable tools for future study.
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Cooke, Raylene, and mikewood@deakin edu au. "Ecology of powerful owls (Ninox strenua) in contrasting habitats of the Yarra Valley Corridor, Victoria, Australia." Deakin University. School og Ecology and Environment, 2000. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20050825.133845.
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In this research I investigated ecological attributes of Powerful Owls (Ninox strenua) in a continuum of habitats throughout the Yarra Valley corridor of Victoria, Australia. These habitats ranged from a highly urbanized parkland (the Yarra Valley Metropolitan Park) to a relatively undisturbed closed forest (Toolangi State Forest).
Different aspects of the owls' ecology were investigated at six sites to determine whether their behaviour changed when they occupied habitats with different levels of urbanization and disturbance.
The ecological attributes investigated were habitat utilization and habitat requirements (for both roosting and nesting), adult behaviour (through radio-tracking), juvenile behaviour and dispersal (through radio tracking), diet (through analysing regurgitated food pellets) and breeding success rates. A number of methods were used to capture adult Powerful Owls. These are described and their effectiveness discussed. The types of radio-transmitters and colour bands used for identification of owls are also described.
The results showed that Powerful Owls are present and successfully breed in urban and suburban areas and that they can tolerate moderate levels of disturbance. However, Powerful Owls do require sites with high prey densities, roost trees and trees with suitable breeding hollows. In comparison with Powerful Owls living elsewhere in forests, the urban owls displayed higher tolerance levels to disturbance and were less selective in terms of habitat usage and diet. Home range sizes of urban
Powerful Owls also appeared much smaller than those of the forest-dwelling Powerful Owls. This is probably due to the high prey densities in the urban areas.
The ecology of the Powerful Owl is compared with that of two owl species from North America, the Northern Spotted Owl (Strix occidentalis caurind) and the Great Horned Owl (Bubo virginianus). In particular, I compared the similarities and differences in habitat requirements and breeding successes in different habitats for the three species.
Overall, it would appear that urban areas can support Powerful Owls providing some old-growth trees are maintained to provide nest hollows. Implications for the long-term management of Powerful Owls in urban areas are also discussed.
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Stone, Brian Edward. "Species landscape relations at multiple scales: case studies with two owl species, powerful owl (Ninox strenua) and Southern Boobook (Ninox novaeseelandiae)." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/12805.
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Models of complex natural systems often demonstrate significant limitations in addressing issues such as the distribution of animal species, particularly in relation to long recognised “problems of scale”. One of the more important theories of scale is Hierarchy Theory (HT). Not surprisingly this theory provides an important framework for surveying and modelling a range of complex, multi-scale natural systems. In this thesis a range of models are developed that focus on contrasting sized Hawk Owls, the larger Powerful Owl (Ninox strenua) and the smaller Southern Boobook (Ninox novaeseelandiae). The models are used to investigate owl distributions from the micro scale (sampling sites) through the meso scale (250 km2 study area) in forests east of Bathurst NSW, to the macro scale (Bioregion). Two different types of modelling were used. The first is Regression (i.e. Generalised Additive Models (GAMs)). The second type is Spatial Point Process (SPP) modelling. Whilst HT has a valuable role as a conceptual construct for multi scale ecological studies, the results from this study challenge some of the presumptions of HT and its relevance to cost effective, practical management. In this thesis I demonstrate that both regression models and spatial point process models have a role to play in predictive modelling. However, they require an adequate number of data points derived from rigorous spatial sampling design and survey methodology. Furthermore, the results of such models utilised within a specific landscape may lack the capacity to be extrapolated to other landscapes, as well as other locations in a species’ range. Important questions have been addressed relating to the value and role of multi scale spatial species distribution and species environment modelling. For some key species and for some broad scale landscapes, management and species conservation practices may require modelling studies, appropriate spatial sampling design and consequently, costly data requirements.
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Warrener, Haylea. "Exploring the influence of woody vegetation connectivity on the dispersal and occurence of the Powerful Owl (Ninox strenua) within the greater Sydney Region, NSW." Thesis, Warrener, Haylea (2015) Exploring the influence of woody vegetation connectivity on the dispersal and occurence of the Powerful Owl (Ninox strenua) within the greater Sydney Region, NSW. Honours thesis, Murdoch University, 2015. https://researchrepository.murdoch.edu.au/id/eprint/28763/.
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Over half of the world’s human population are living within an urban environment. As a result, urbanisation of the natural landscape has increased, involving extensive land use change, and reducing the ecological resilience of species living within these complex environments. Habitat fragmentation and isolation caused by urbanisation can reduce the landscape connectivity of the ecological network. Landscape connectivity between habitat patches is critical to sustain genetic diversity, migration and sufficient territories for many species within complex landscapes. Therefore to increase ecological resilience for species within an urban system increased effort is required on applying conservation measures to natural areas within an urban environment.
The powerful owl (Ninox strenua) is one of many species affected by increasing urbanisation and land use change. It is the largest owl species in Australia and considered vulnerable within New South Wales. It is a habitat specialist that requires high density woody vegetation cover for both foraging (main prey being arboreal marsupials) and nesting, and has an extensive home-range. Though previous research has acknowledged the effect urbanisation will have on the owl, none have previously gone into its dispersal habitat requirements and the influence landscape connectivity will have on its dispersal and occurrence throughout an urbanised system. Hence this study has investigated the influence woody vegetation connectivity has on the dispersal and occurrence of the powerful owl within the Greater Sydney Region, NSW.
The study is split into two main sections, 1) Mapping woody vegetation and 2) Analysing and evaluating landscape connectivity for the powerful owl. To generate a land cover map of the study area, high resolution aerial photographs and an object oriented analysis in combination with a classification tree was used. The land cover map produced for the study area achieved high overall classification accuracy (>85%) and for the woody vegetation class (>90%). To analyse landscape connectivity the circuit theory was used. The circuit theory takes into account all possible pathways the owl could potentially use for dispersal depending on the permeability and resistance of the landscape. Resistance layers were developed from the woody vegetation land cover map and other environmental or anthropogenic features which may facilitate or prevent dispersal. A novel approach to evaluate the connectivity surfaces with species distribution modelling was developed using presence data of powerful owl observations.
Woody vegetation connectivity was determined to have a critical effect on dispersal between habitat patches for the powerful owl. Sensitivity to disturbance of its dispersal habitat was explored, with the results indicating high sensitivity to disturbance of its dispersal habitat. Therefore increasing land use change within the Sydney area will potentially decrease the available habitat for dispersal and reduce the powerful owl’s ecological resilience to future disturbance.
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Warren, Jenn. "SpeakUP! Young Women Share Powerful Stories From Their Own Lives." Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-22591.
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How can a Digital Storytelling workshop help educate, inspire and mobilise young women engaged in a non-profit organisation, in order to assist their peers? This exploratory study investigates whether Digital Storytelling can foster digital literacy, self-awareness and reflection amongst workshop participants, and how young women may be able to support each other and their peers through the act of creating and sharing personal digital stories. Conducted using qualitative and participatory methods, with the theoretical underpinnings of Albert Bandura’s Social Learning Theory and Social Cognitive Theory, Paulo Freire’s conscientisation and participatory development, this research is conducted in collaboration with female mentors from the sport-based adolescent health organisation, Grassroot Soccer. First, I analyse the women’s interactions and learnings during the Digital Storytelling workshop, where participants create digital stories in a hands-on setting (using the Story Center model). This is done through participant observation and semi-structured interviews with participants following the workshop. Second, I seek to understand how or if young women can re-present themselves in the context of a facilitated Digital Storytelling workshop and challenge gender stereotypes through their own digital stories. This data is collected through a pre-workshop questionnaire, participant observation, semi-structured interviews, and analysis of the digital stories. While this is an exploratory study, I anticipate results in the following areas: (1) cross-pollination of knowledge between workshop participants and facilitators; (2) self-awareness, self-confidence and reflection amongst young women; (3) increase in digital literacy, storytelling and audio/visual skills; and (4) increase in understanding of, or introduction to, digital media and communication, activism and social change.
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Chang, Jing-Rong, and 張景榮. "A Powerful and Dynamic Fuzzy OWA GDSS for Evaluating the Rate of Aggregative Risks in Software Development." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/17784669737116548648.
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碩士國立雲林科技大學
資訊管理系碩士班
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It is difficult to deal with the traditional problems of MCDM (multiple criteria decision making). Yager proposed an OWA aggregation method when facing to find the related weight of these criteria. The OWA operator is a good solution to simulate the thinking of human beings. By repeating the OWA steps to calculate the weights of attributes (criteria), then the users will have the final weights when the value of each weight become steady. By this idea, we solve the MCDM problem perfectly. However, these aggregation operators (include OWA) do not reflect the situation in aggregation process, i.e. these operators and aggregation situation are independent. In order to solve this problem, we propose a new aggrega-tion model so called a powerful OWA based on information entropy model. The greatest difference between the previous operators and this proposed model is that we can refine these related weights ”dynamically” between criteria according to the “aggregation situation”. And, in order to make confidence toward this model, we propose a GDSS for evaluating the risks of software develop, and we compare the result of this GDSS with the method of Chen S. M. in 2001. Finally, we conclude the contribution of this research is： 1.Help the decision maker to get the weight of criteria faster and more reasonable. 2.Get the weights of MCDM based on information dispersion (or entropy). 3.Build a GDSS base on our model for evaluating the risk of software develops. 4.Maintain the criterion to get a more proper reference decision for the project manager. 5.Use the fuzzy linguistic variables, solve the problem that we can only input by value.
Books on the topic "Powerful owl"
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The powerful owl. Chippendale: Picador Australia, 1994.
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Burkhardt, Ross M. Inventing powerful pedagogy: Share, steal, revise, own. Westerville, OH: National Middle School Association, 2009.
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1949-, Allen Linda G., ed. Making words their own: Building foundations for powerful vocabularies. Peterborough, NH: Crystal Springs Books, 2008.
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Crook, William G. Nature's own candida cure: Powerful remedies to combat yeast-related health disorders. Summertown, Tenn: Alive Books, 2007.
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McKinney, Anne. Real-resumes for students: [actual resumes, easy to personalize creating your own powerful, door-opening resume!]. Fayetteville, NC: PREP Pub., 2012.
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McKinney, Anne. Real-resumes for career changers: [actual resumes easy to personalize creating your own powerful, door-opening resume!]. Fayetteville, N.C: Prep Pub., 2012.
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The tyranny of oil: The world's most powerful industry-and what we must do to stop it. New York, NY: HarperCollins Publishers, 2008.
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Olsen, Jerry. Australian High Country Owls. CSIRO Publishing, 2011. http://dx.doi.org/10.1071/9780643104105.
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Australian High Country Owls provides the latest scientific information on Australian owl species, especially Ninox owls. It details studies of Southern Boobooks and Powerful Owls, visits to North America and Europe to learn about owl research, and the resulting publications that overturned some existing beliefs about Australian owls. Ultimately, this led to the discovery of a new owl species in Indonesia, the Little Sumba Hawk-Owl.
Appendices cover the biology, conservation and rehabilitation of Australian owls, including: field recognition, subspecies taxonomy, habitat, behaviour, food, range, migration, breeding, voice and calls, status and myths, questions about each species, and techniques for caring for injured and orphaned owls.
The book includes numerous photographs of different owl species, and will be a handy reference for bird researchers and amateur bird watchers alike.
2012 Whitley Award Commendation for Vertebrate Natural History.
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Hansen, Gregg. CBD Oil for Gingivitis: Powerful Therapy for Gingivitis Using CBD OIL. Independently Published, 2019.
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JOHNSON, Thomas. CBD Oil As a Powerful Relief for Neuropathic Pain. Independently Published, 2019.
Find full textBook chapters on the topic "Powerful owl"
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Wang, Liang, and Jianxin Zhao. "Introduction." In Architecture of Advanced Numerical Analysis Systems, 1–8. Berkeley, CA: Apress, 2022. http://dx.doi.org/10.1007/978-1-4842-8853-5_1.
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AbstractThis book introduces Owl, a numerical library we have been developing and maintaining for years. We develop Owl for scientific and engineering computing in the OCaml language. It focuses on providing a comprehensive set of high-level numerical functions so that developers can quickly build up any data analytical applications. Over years of intensive development and continuous optimization, Owl has evolved into a powerful software system with competitive performance compared to mainstream numerical libraries. Meanwhile, Owl’s overall architecture remains simple and elegant. Its small codebase can be easily managed by a small group of developers.
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Roudavski, Stanislav, and Dan Parker. "Modelling Workflows for More-than-Human Design: Prosthetic Habitats for the Powerful Owl (Ninox strenua)." In Impact: Design With All Senses, 554–64. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29829-6_43.
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Ruddell, Rick. "Crimes of the Powerful." In Oil, Gas, and Crime, 93–119. New York: Palgrave Macmillan US, 2017. http://dx.doi.org/10.1057/978-1-137-58714-5_5.
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Robert-Murail, Constance. ""Smuggling in Accidental Poetry": Cognitive and Stylistic Strategies of a Stammering Teen in David Mitchell's Black Swan Green." In Powerful Prose, 231–48. Bielefeld, Germany: transcript Verlag, 2021. http://dx.doi.org/10.14361/9783839458808-014.
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In this article, Constance Robert-Murail will explore the poetic »accidents« at work in two extracts of Black Swan Green (2006) by David Mitchell. The novel tells the trials and musings of Jason Taylor, a thoughtful 13-year-old growing up in a backwater town full of strange neighbours and middle-school bullies. Throughout the year 1982, the reader witnesses Jason mediating between the various personae of his fragmented identity: Unborn Twin, his faint-hearted alter ego; Eliot Bolivar, the nom-de-plume he uses to write poems for the local parish newspaper; and, most importantly, Hangman, a malignant personification of his stammer. According to Garan Holcombe, David Mitchell's own experience of stammering has provided the novelist with a particular »sensitivity toward the formal necessity of coherence and structure« (Holcombe, 2013). The extract I have decided to focus on dramatises the onset of Jason's speech impediment and acts as a »high emotional intensity passage« (Toolan, 2012) within the structure of the coming-of-age narrative. A close stylistic reading of this particular text highlights the juxtaposition of Jason's pathological speechlessness and his bustling, bubbling inner monologue. This opposition elicits a physical reaction within the reader, caught between frustration and delectation. I would argue that the multimodal nature of the extract generates what Pierre-Louis Patoine has called a »somesthetic« effect on the reader (Patoine, 2016). Stuttering, according to Professor Mark Onslow, is »an idiosyncratic disorder.« (Onslow, 2017). Word avoidance has led Jason to create his own grammar and lexicon: his youthful voice and palliative strategies allow Mitchell to smuggle in moments of »accidental« poetry. The cognitive exploration of Jason's stammer stands both at the core of the reader's response and at the centre of Mitchell's powerful poetics-and it is, last but not least, devastatingly funny.
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Cooke, Raylene, Fiona Hogan, Bronwyn Isaac, Marian Weaving, and John G. White. "Powerful Owls: Possum Assassins Move into Town." In Urban Raptors, 152–65. Washington, DC: Island Press/Center for Resource Economics, 2018. http://dx.doi.org/10.5822/978-1-61091-841-1_11.
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Besruk, J. A., B. P. Zhukov, E. P. Velikhov, and Y. P. Babakov. "Electric Prospecting for Oil and Gas Fields Using Powerful MHD Generators." In Conversion Concepts for Commercial Applications and Disposal Technologies of Energetic Systems, 85–90. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-1175-3_11.
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Krase, Jerome, and Timothy Shortell. "Story-Making and Photography: The Visual Essay and Migration." In IMISCOE Research Series, 141–59. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67608-7_8.
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AbstractIt can be argued that migrants express their own agency, via spatial practices, to change the meanings of the spaces and places they occupy and use. Although they are not the most powerful agents in our glocalized world, they nevertheless sometimes consciously and more often unconsciously, compete with others to visually define their micro-worlds for themselves and, therefore, for more powerful others as well (Krase & Shortell, 2015). Of course, migrants move, but they also settle and can establish more or less permanent enclaves. As students of mid- to large-scale urban change, we focus on commercial neighborhood vernacular landscapes which we argue have the greatest visual impact on observers. As we argue here, special attention should be paid to the visible products of their settlement which are enacted in local vernacular landscapes. For example, markets, places of worship, and even the patterns of dress of people on the street can serve as powerful semiotics or “markers” of change due to migration. It must be noted at the outset that social scientist, like ordinary observers, must avoid the common tendency to essentialize these visible signs that contribute to the problem of stereotyping social groups.
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Blasi, Luca Di, Manuele Gragnolati, and Christoph F. E. Holzhey. "Introduction." In The Scandal of Self-Contradiction, 7–16. Vienna: Turia + Kant, 2012. http://dx.doi.org/10.37050/ci-06_01.
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Pier Paolo Pasolini’s own phrase ‘the scandal of self-contradiction’ (‘lo scandalo del contraddirmi’) from ‘Le ceneri di Gramsci’ (1957) encapsulates one of his most salient characteristics. Deeply influenced by a religious childhood, he became an atheist without loosing a powerful sense of the sacred; he was a Marxist expelled by the Italian Communist Party, a revolutionist with a great admiration for the past, a deeply anti-bourgeois bourgeois.
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St-Pierre, Emile. "Contested Energy Futures in Hokkaido: Speculating with European Renewable Energy Models." In Digitisation and Low-Carbon Energy Transitions, 53–72. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-16708-9_4.
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AbstractThe Japanese government has been drawing on the experiences and technologies of European countries to plan out its own development of a more interconnected, digitised society based on renewable energy. However, on the northern island of Hokkaido, local producers and proponents of renewable energy have been using the European models to argue for their own version of local ownership and independence, a trend accelerated by a powerful earthquake that caused a wide blackout in 2018. Biogas producers are notable for creating new digital and multispecies arrangements of sharing excess heat from the production process. These material experiments offer the possibility of speculating about a different energy future that includes the digital while mitigating the abstractions of modern infrastructure.
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Chiari, Michele, Dino Mandrioli, and Matteo Pradella. "Model-Checking Structured Context-Free Languages." In Computer Aided Verification, 387–410. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-81688-9_18.
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AbstractThe problem of model checking procedural programs has fostered much research towards the definition of temporal logics for reasoning on context-free structures. The most notable of such results are temporal logics on Nested Words, such as CaRet and NWTL. Recently, the logic OPTL was introduced, based on the class of Operator Precedence Languages (OPL), more powerful than Nested Words. We define the new OPL-based logic POTL, and provide a model checking procedure for it. POTL improves on NWTL by enabling the formulation of requirements involving pre/post-conditions, stack inspection, and others in the presence of exception-like constructs. It improves on OPTL by being FO-complete, and by expressing more easily stack inspection and function-local properties. We developed a model checking tool for POTL, which we experimentally evaluate on some interesting use-cases.
Conference papers on the topic "Powerful owl"
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Kang, SungKu, Lalit Patil, Arvind Rangarajan, Abha Moitra, Tao Jia, Dean Robinson, and Debasish Dutta. "Extraction of Manufacturing Rules From Unstructured Text Using a Semantic Framework." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47556.
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Formal ontology and rule-based approaches founded on semantic technologies have been proposed as powerful mechanisms to enable early manufacturability feedback. A fundamental unresolved problem in this context is that all manufacturing knowledge is encoded in unstructured text and there are no reliable methods to automatically convert it to formal ontologies and rules. It is impractical for engineers to write accurate domain rules in a structured semantic languages such as Web Ontology Language (OWL) or Semantic Application Design Language (SADL). Previous efforts in manufacturing research that have targeted extraction of OWL ontologies from text have focused on basic concept names and hierarchies. This paper presents a semantics-based framework for acquiring more complex manufacturing knowledge, primarily rules, in a semantically-usable form from unstructured English text such as those written in manufacturing handbooks. The approach starts with existing domain knowledge in the form of OWL ontologies and applies natural language processing techniques to extract dependencies between different words in the text that contains the rule. Domain-specific triples capturing each rule are then extracted from each dependency graph. Finally, new computer-interpretable rules are composed from the triples. The feasibility of the framework has been evaluated by automatically and accurately generating rules for manufacturability from a manufacturing handbook. The paper also documents the cases that result in ambiguous results. Analysis of the results shows that the proposed framework can be extended to extract domain ontologies which forms part of the ongoing work that also focuses on addressing challenges to automate different steps and improve the reliability of the system.
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Nicolle, G., C. Boibien, H. L. Ten-Haven, E. Tegelaar, and Ph Chavagnac. "Geochemistry: A Powerful tool for Reservoir Monitoring." In Middle East Oil Show and Conference. Society of Petroleum Engineers, 1997. http://dx.doi.org/10.2118/37804-ms.
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Bloch, Gerard, Maged El Deeb, Hussein Badaam, Frederic Cailly, Gael lecante, and Antoine Meunier. "Seismic Facies Analysis for Fracture Detection : a Powerful Technique." In Middle East Oil Show. Society of Petroleum Engineers, 2003. http://dx.doi.org/10.2118/81526-ms.
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Vucinic, Dean, Marina Pesut, Franjo Jovic, and Chris Lacor. "Exploring Ontology-Based Approach to Facilitate Integration of Multi-Physics and Visualization for Numerical Models." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86477.
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Today, within the engineering design process, we have interactions between different design teams, where each team has its own design objective and continuous need to present and share results with other groups. Common engineering environments are equipped with advanced modeling and simulation tools, specially designed to improve engineer’s productivity. In this paper we propose the use of ontologies, the semantic metadata descriptors, to facilitate the software development process in building such multidisciplinary engineering environments. The important development task is to perform integration of several numerical simulation components (models of data and processes) together with the interactive visualization of the engineering models in a unified 3D scene. In addition, we explore the possibilities on how the prototyped ontologies can become standard components in such software systems, where the presence of the inference engine grants and enables continuous semantic integration of the involved data and processes. The semantic integration is based on: 1) mapping discovery between two or more ontologies, 2) declarative formal representation of mappings to enable 3) reasoning with mappings and find what types of reasoning are involved; and we have explored these three dimensions. The proposed solution involves two web based software standards: Semantic Web and X3D. The developed prototype make use of the “latest” available XML-based software technologies, such X3D (eXtensible 3D) and OWL (Web Ontology Language), and demonstrates the modeling approach to integrate heterogeneous data sources, their interoperability and 3D visual representations to enhance the end-users interactions with the engineering content. We demonstrate that our ontology-based approach is appropriate for the reuse, share and exchange of software constructs, which implements differential-geometric algorithms used in multidisciplinary numerical simulations, by applying adopted ontologies that are used in the knowledge-based systems. The selected engineering test case represents a complex multi-physics problem FSI (Fluid Structure Interaction). It involves numerical simulations of a multi-component box structure used for the drop test in a still water. The numerical simulations of the drop test are performed through combined used of the FEM (Finite Element Method) and CFD (Computational Fluid Dynamics) solvers. The important aspect is the design of a common graphics X3D model, which combines the FEM data model, which is coupled with the CFD data model in order to preserve all the relationships between CFD and FEM data. Our ultimate vision is to build intelligent and powerful mechanical engineering software by developing infrastructure that may enable efficient data sharing and process integration mechanisms. We see our current work in exploring the ontology-based approach as a first step towards semantic interoperability of numerical simulations and visualization components for designing complex multi-physics solutions.
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Sutoyo, H. R., T. Ariadji, P. A. Aziz, and M. L. Mahendra. "How Powerful Material Balance Analysis Method for Predicting Gas Flooding Performance." In SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/176253-ms.
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Sharma, Abhishek, Prince Samuel, Debashis Gupta, Craig Whatley, Shubham Agarwal, and Gian-Marcio Gey. "Edge Computing: A Powerful and Agile Platform for Digital Transformation in Oilfield Management." In SPE Asia Pacific Oil & Gas Conference and Exhibition. Society of Petroleum Engineers, 2020. http://dx.doi.org/10.2118/202252-ms.
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Ajoku, C. O. "Community Health Assistance Programme During Seismic Exploration - A Powerful Communication." In SPE International Conference on Health, Safety, and Environment in Oil and Gas Exploration and Production. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/46875-ms.
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Dobbyn, Abigail, and Marcus Marsh. "Material Balance: A Powerful Tool for Understanding The Early Performance of The Schiehallion Field." In SPE Offshore Europe Oil and Gas Exhibition and Conference. Society of Petroleum Engineers, 2001. http://dx.doi.org/10.2118/71819-ms.
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Du Bernard, Xavier, Jonathan Gallon, and Jérôme Massot. "The Gaia Explorer, a Powerful Search Platform." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/207837-ms.
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Abstract After two years of development, the GAIA Explorer is now ready to assist Geoscientists at Total! This knowledge platform works like a little Google, but with a focus solely on Geosciences - for the time being. The main goal of the GAIA Explorer is to save time finding the right information. Therefore, it is particularly useful for datarooms or after business acquisitions to quickly digest the knowledge, but also for feeding databases, exploration syntheses, reservoir studies, or even staff onboarding specially when remote working. With this additional time, Geoscientists can focus on tasks with added value, such as to synthesize, find analogies or propose alternative scenarios. This new companion automatically organizes and extracts knowledge from a large number of unstructured technical documents by using Machine Learning (ML). All the models relie on Google Cloud Platform (GCP) and have been trained on our own datasets, which cover main petroleum domains such as geosciences and operations. First, the layout of more than 75,000 document pages were analyzed for training a segmentation model, which extracts three types of content (text, images and tables). Secondly, the text content extracted from about 6,500 documents labelled amongst 30 classes was used to train a model for document classification. Thirdly, more than 55,000 images were categorized amongst 45 classes to customize a model of image classification covering a large panel of figures such as maps, logs, seismic sections, or core pictures. Finally, all the terms (n-grams) extracted from objects are compared with an inhouse thesaurus to automatically tag related topics such as basin, field, geological formation, acquisition, measure. All these elementary bricks are connected and used for feeding a knowledge database that can be quickly and exhaustively searched. Today, the GAIA Explorer searches within texts, images and tables from a corpus (document collection), which can be made up of both technical and operational reports, meeting presentations and academic publications. By combining queries (keywords or natural language) with a large array of filters (by classes and topics), the outcomes are easily refined and exploitable. Since the release of a production version in February 2021 at Total, about 180 users for 30 projects regularly use the tool for exploration and development purposes. This first version is following a continuous training cycle including active learning and, preliminary user feedback is good and admits that some information would have been difficult to locate without the GAIA Explorer. In the future, the GAIA Explorer could be significantly improved by implementing knowledge graph based on an ontology dedicated specific to petroleum domains. Along with the help of Specialists in related activities such as drilling, project or contract, the tool could cover the complete range of upstream topics and be useful for other business with time.
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Baroek, Maria Patricia, Tom L. Heidrick, and Ken D. Kelsch. "Linked Tectonics, A Powerful New Paradigm For Deciphering The Structural Evolution Of The Menggala North Oil Field." In SPE Asia Pacific Oil and Gas Conference and Exhibition. Society of Petroleum Engineers, 1999. http://dx.doi.org/10.2118/54385-ms.
Full textReports on the topic "Powerful owl"
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Batyr, A. V., Володимир Миколайович Соловйов, and E. P. Sedov. The Cyclic Surgings as One of the Reasons of the Modern Economical Crisis. Information Systems Management Institute, April 2009. http://dx.doi.org/10.31812/0564/1130.
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Since the problem of the world economical crisis is gaming importance nowadays, it becomes necessary to reveal its real nature and reasons, in order to act in the most adequate way. The cycle theory is a possible explanation for the current situation in the economy.We have carried out our own investigation, during which the economies of USA, United Kingdom and France in 1961-2007 were compared. The real GDP and unemployment dynamics were taken into consideration. We also paid attention to historical events of the period and Kondratiev’s empiric truths, in order to explain both the most powerful crises and the modern one.
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Yilmaz, Ihsan, and Nicholas Morieson. Nationalism, Religion, and Archaeology: The Civilizational Populism of Benjamin Netanyahu and Likud. European Center for Populism Studies (ECPS), October 2022. http://dx.doi.org/10.55271/pp0015.
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This paper examines civilizational populism in Israel and focuses on the largest and most powerful party in Israel since the 1980s, National Liberal Movement (Likud), and its most significant leader of the past twenty years, the populist politician Benjamin Netanyahu. We show how Netanyahu incorporates ‘civilizationism’ into his populist discourses by, first, using the notion that Jewish civilization predates all others in the region to establish the legitimacy of the state of Israel, the hegemony of Jewish culture within Israel, and at times his own political decisions. Second, through his portrayal of the Arab-Muslim world as an antisemitic and barbaric bloc that, far from being a civilization, threatens Western civilization through its barbarism. Equally, this paper shows how Netanyahu argues that Israel is akin to protective wall that protects Western Civilization from the Islamist barbarians who wish to destroy it, and therefore on this basis calls for Europeans and North Americans to support Israel in its battle for civilization and against “the forces of barbarism.”
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Pearce, Fred. Common Ground: Securing land rights and safeguarding the earth. Rights and Resources Initiative, March 2016. http://dx.doi.org/10.53892/homt4176.
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Up to 2.5 billion people depend on indigenous and community lands, which make up over 50 percent of the land on the planet; they legally own just one-fifth. The remaining land remains unprotected and vulnerable to land grabs from more powerful entities like governments and corporations. There is growing evidence of the vital role played by full legal ownership of land by indigenous peoples and local communities in preserving cultural diversity and in combating poverty and hunger, political instability and climate change. The importance of protecting and expanding indigenous and community ownership of land has been a key element in the negotiations of the Sustainable Development Goals and the Paris Agreement on climate change, and is central to their successful implementation. This report launches a Global Call to Action on Indigenous and Community Land Rights, backed by more than 300 organizations all over the world. It is a manifesto of solidarity with the ongoing struggles of indigenous peoples and local communities seeking to secure their land rights once and for all.
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Lasko, Kristofer, and Elena Sava. Semi-automated land cover mapping using an ensemble of support vector machines with moderate resolution imagery integrated into a custom decision support tool. Engineer Research and Development Center (U.S.), November 2021. http://dx.doi.org/10.21079/11681/42402.
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Land cover type is a fundamental remote sensing-derived variable for terrain analysis and environmental mapping applications. The currently available products are produced only for a single season or a specific year. Some of these products have a coarse resolution and quickly become outdated, as land cover type can undergo significant change over a short time period. In order to enable on-demand generation of timely and accurate land cover type products, we developed a sensor-agnostic framework leveraging pre-trained machine learning models. We also generated land cover models for Sentinel-2 (20m) and Landsat 8 imagery (30m) using either a single date of imagery or two dates of imagery for mapping land cover type. The two-date model includes 11 land cover type classes, whereas the single-date model contains 6 classes. The models’ overall accuracies were 84% (Sentinel-2 single date), 82% (Sentinel-2 two date), and 86% (Landsat 8 two date) across the continental United States. The three different models were built into an ArcGIS Pro Python toolbox to enable a semi-automated workflow for end users to generate their own land cover type maps on demand. The toolboxes were built using parallel processing and image-splitting techniques to enable faster computation and for use on less-powerful machines.
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Warrick, Arthur W., Gideon Oron, Mary M. Poulton, Rony Wallach, and Alex Furman. Multi-Dimensional Infiltration and Distribution of Water of Different Qualities and Solutes Related Through Artificial Neural Networks. United States Department of Agriculture, January 2009. http://dx.doi.org/10.32747/2009.7695865.bard.
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The project exploits the use of Artificial Neural Networks (ANN) to describe infiltration, water, and solute distribution in the soil during irrigation. It provides a method of simulating water and solute movement in the subsurface which, in principle, is different and has some advantages over the more common approach of numerical modeling of flow and transport equations. The five objectives were (i) Numerically develop a database for the prediction of water and solute distribution for irrigation; (ii) Develop predictive models using ANN; (iii) Develop an experimental (laboratory) database of water distribution with time; within a transparent flow cell by high resolution CCD video camera; (iv) Conduct field studies to provide basic data for developing and testing the ANN; and (v) Investigate the inclusion of water quality [salinity and organic matter (OM)] in an ANN model used for predicting infiltration and subsurface water distribution. A major accomplishment was the successful use of Moment Analysis (MA) to characterize “plumes of water” applied by various types of irrigation (including drip and gravity sources). The general idea is to describe the subsurface water patterns statistically in terms of only a few (often 3) parameters which can then be predicted by the ANN. It was shown that ellipses (in two dimensions) or ellipsoids (in three dimensions) can be depicted about the center of the plume. Any fraction of water added can be related to a ‘‘probability’’ curve relating the size of the ellipse (or ellipsoid) that contains that amount of water. The initial test of an ANN to predict the moments (and hence the water plume) was with numerically generated data for infiltration from surface and subsurface drip line and point sources in three contrasting soils. The underlying dataset consisted of 1,684,500 vectors (5 soils×5 discharge rates×3 initial conditions×1,123 nodes×20 print times) where each vector had eleven elements consisting of initial water content, hydraulic properties of the soil, flow rate, time and space coordinates. The output is an estimate of subsurface water distribution for essentially any soil property, initial condition or flow rate from a drip source. Following the formal development of the ANN, we have prepared a “user-friendly” version in a spreadsheet environment (in “Excel”). The input data are selected from appropriate values and the output is instantaneous resulting in a picture of the resulting water plume. The MA has also proven valuable, on its own merit, in the description of the flow in soil under laboratory conditions for both wettable and repellant soils. This includes non-Darcian flow examples and redistribution and well as infiltration. Field experiments were conducted in different agricultural fields and various water qualities in Israel. The obtained results will be the basis for the further ANN models development. Regions of high repellence were identified primarily under the canopy of various orchard crops, including citrus and persimmons. Also, increasing OM in the applied water lead to greater repellency. Major scientific implications are that the ANN offers an alternative to conventional flow and transport modeling and that MA is a powerful technique for describing the subsurface water distributions for normal (wettable) and repellant soil. Implications of the field measurements point to the special role of OM in affecting wettability, both from the irrigation water and from soil accumulation below canopies. Implications for agriculture are that a modified approach for drip system design should be adopted for open area crops and orchards, and taking into account the OM components both in the soil and in the applied waters.
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Lazonick, William. Investing in Innovation: A Policy Framework for Attaining Sustainable Prosperity in the United States. Institute for New Economic Thinking Working Paper Series, March 2022. http://dx.doi.org/10.36687/inetwp182.
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“Sustainable prosperity” denotes an economy that generates stable and equitable growth for a large and growing middle class. From the 1940s into the 1970s, the United States appeared to be on a trajectory of sustainable prosperity, especially for white-male members of the U.S. labor force. Since the 1980s, however, an increasing proportion of the U.S labor force has experienced unstable employment and inequitable income, while growing numbers of the business firms upon which they rely for employment have generated anemic productivity growth. Stable and equitable growth requires innovative enterprise. The essence of innovative enterprise is investment in productive capabilities that can generate higher-quality, lower-cost goods and services than those previously available. The innovative enterprise tends to be a business firm—a unit of strategic control that, by selling products, must make profits over time to survive. In a modern society, however, business firms are not alone in making investments in the productive capabilities required to generate innovative goods and services. Household units and government agencies also make investments in productive capabilities upon which business firms rely for their own investment activities. When they work in a harmonious fashion, these three types of organizations—household units, government agencies, and business firms—constitute “the investment triad.” The Biden administration’s Build Back Better agenda to restore sustainable prosperity in the United States focuses on investment in productive capabilities by two of the three types of organizations in the triad: government agencies, implementing the Infrastructure Investment and Jobs Act, and household units, implementing the yet-to-be-passed American Families Act. Absent, however, is a policy agenda to encourage and enable investment in innovation by business firms. This gaping lacuna is particularly problematic because many of the largest industrial corporations in the United States place a far higher priority on distributing the contents of the corporate treasury to shareholders in the form of cash dividends and stock buybacks for the sake of higher stock yields than on investing in the productive capabilities of their workforces for the sake of innovation. Based on analyzes of the “financialization” of major U.S. business corporations, I argue that, unless Build Back Better includes an effective policy agenda to encourage and enable corporate investment in innovation, the Biden administration’s program for attaining stable and equitable growth will fail. Drawing on the experience of the U.S. economy over the past seven decades, I summarize how the United States moved toward stable and equitable growth from the late 1940s through the 1970s under a “retain-and-reinvest” resource-allocation regime at major U.S. business firms. Companies retained a substantial portion of their profits to reinvest in productive capabilities, including those of career employees. In contrast, since the early 1980s, under a “downsize-and-distribute” corporate resource-allocation regime, unstable employment, inequitable income, and sagging productivity have characterized the U.S. economy. In transition from retain-and-reinvest to downsize-and-distribute, many of the largest, most powerful corporations have adopted a “dominate-and-distribute” resource-allocation regime: Based on the innovative capabilities that they have previously developed, these companies dominate market segments of their industries but prioritize shareholders in corporate resource allocation. The practice of open-market share repurchases—aka stock buybacks—at major U.S. business corporations has been central to the dominate-and-distribute and downsize-and-distribute regimes. Since the mid-1980s, stock buybacks have become the prime mode for the legalized looting of the business corporation. I call this looting process “predatory value extraction” and contend that it is the fundamental cause of the increasing concentration of income among the richest household units and the erosion of middle-class employment opportunities for most other Americans. I conclude the paper by outlining a policy framework that could stop the looting of the business corporation and put in place social institutions that support sustainable prosperity. The agenda includes a ban on stock buybacks done as open-market repurchases, radical changes in incentives for senior corporate executives, representation of workers and taxpayers as directors on corporate boards, reform of the tax system to reward innovation and penalize financialization, and, guided by the investment-triad framework, government programs to support “collective and cumulative careers” of members of the U.S. labor force. Sustained investment in human capabilities by the investment triad, including business firms, would make it possible for an ever-increasing portion of the U.S. labor force to engage in the productive careers that underpin upward socioeconomic mobility, which would be manifested by a growing, robust, and hopeful American middle class.