cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 4 of Circulatory trajectories after out-of-hospital cardiac arrest: a prospective cohort study
Creators: name: Langeland, Halvor
name: Bergum, Daniel
name: Nordseth, Trond
name: Løberg, Magnus
name: Skaug, Thomas
name: Bjørnstad, Knut
name: Gundersen, Ørjan
name: Skjærvold, Nils-Kristian
name: Klepstad, Pål
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 4: Supplementary Table 1. Demographic and mortality for cluster 1 to 4. * Systolic blood pressure <90 mmHg or in need of fluids and/or vasopressors to maintain systolic blood pressure >90 mmHg. † Comatose were patients that were intubated and gave no contact (GCS <8). ER: Emergency room. GCS: Glasgow coma scale. ROSC: Return of spontaneous circulation. SD: Standard deviation. SAPS: Simplified Acute Physiology Score.
Cooperation and its evolution in growing systems with cultural reproduction
Creators: name: Portillo, Ignacio Gomez
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We explore the evolution of cooperation in the framework of the evolutionary game theory using the prisoner's dilemma as metaphor of the problem. We present a minimal model taking into account the growing process of the systems and individuals with imitation capacity. We consider the topological structure and the evolution of strategies decoupled instead of a coevolutionary dynamic. We show conditions to build up a cooperative system with real topological structures for any natural selection intensity. When the system starts to grow, cooperation is unstable but becomes stable as soon as the system reaches a small core of cooperators whose size increase when the intensity of natural selection decreases. Thus, we reduce the emergence of cooperative systems with cultural reproduction to justify a small initial cooperative structure that we call cooperative seed. Otherwise, given that the system grows principally as cooperator whose cooperators inhabit the most linked parts of the system, the benefit-cost ratio required for cooperation evolve is drastically reduced compared to the found in static networks. In this way, we show that in systems whose individuals have imitation capacity the growing process is essential for the evolution of cooperation.
description: 16 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1111.2470
The Structural, Behavioral, and Pharmacokinetic Effects of Different Patterns of Cannabis Use on Adolescent Neurodevelopment
Creators: name: Scheufen, Jessica
Publisher: name: Graduate Studies
Year: 2024
Subjects: subject: Cannabis
subject: Neuroscience

description: Background: Roughly one third of Canadian adolescents are using cannabis, without sufficient education on how it may affect neurodevelopment. Of those who use cannabis, some are using infrequently, some are using weekly, some are using daily, and some are using daily with escalating use. Most current literature does not distinguish between these usage patterns, and it often employs vastly different methodologies which can lead to heterogeneous results. This study aims to incorporate four representative patterns of adolescent cannabis use (Controls, Weekly users, Daily users, and High Frequency users) into a translationally relevant pre-clinical model. We aim to determine the pharmacokinetic (PK), structural, and behavioural effects of each pattern of cannabis use. Methods: Rats from all four frequency groups were assigned to either a PK, structural, or behavioural cohort. Adolescent rats were exposed to cannabis or vehicle vapour over a three-week adolescent period. Following this, blood and brain samples were collected from the PK cohort both at an immediate and residual timepoint after the last vapour exposure, and the levels of cannabis constituents in each sample were analysed. Each rat in the structural cohort had two magnetic resonance imaging (MRI) scans taken, one before and one after three weeks of vapour exposure, to measure volumetric growth over adolescence. The behavioral cohort was examined for cognitive-emotional effects after three weeks of vapour exposure, using light-dark box, fear conditioning, and novel-object-context-mismatch (NOCM) paradigms. Results: PK: The blood-THC levels were higher at the immediate timepoint than at the residual timepoint. There were no significant differences between frequency groups or sexes, in any cannabis constituent levels, at either timepoint. MRI: Select regions of interest (ROIs) had opposite volumetric growth effects, which were correlated with different frequencies of cannabis exposure. Behaviour: Daily and Weekly exposed rats showed significantly less anxiety-like behaviour, but significantly more fear behaviour, than controls. There were no observed cognitive impairments during NOCM. Conclusion: Frequency of cannabis consumption was heterogeneously associated with biphasic neurodevelopmental effects, where Daily and Weekly users had opposite effects to HF. Future studies should incorporate representative patterns of cannabis exposure, to fully elucidate the associated mechanisms of these effects.
Additional file 1 of How the seed coat affects the mother’s oviposition preference and larval performance in the bean beetle (Acanthoscelides obtectus, Coleoptera: Chrysomelidae, Bruchinae) in leguminous species
Creators: name: Szentesi, Árpád
Publisher: name: figshare
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Additional file 1. Additional tables.
title: Trophic niche differentiation and microhabitat utilization revealed by stable isotope analyses in a dry-forest bat assemblage at Ankarana, northern Madagascar
Creators: name: Dammhahn, Melanie
name: Goodman, Steven M.
Publisher: name: Universität Potsdam
Year: 2019
Subjects: subject: 570 Biowissenschaften; Biologie

description: Bats are important components in tropical mammal assemblages. Unravelling the mechanisms allowing multiple syntopic bat species to coexist can provide insights into community ecology. However, dietary information on component species of these assemblages is often difficult to obtain. Here we measuredstable carbon and nitrogen isotopes in hair samples clipped from the backs of 94 specimens to indirectly examine whether trophic niche differentiation and microhabitat segregation explain the coexistence of 16 bat species at Ankarana, northern Madagascar. The assemblage ranged over 4.4% in delta N-15 and was structured into two trophic levels with phytophagous Pteropodidae as primary consumers (c. 3% enriched over plants) and different insectivorous bats as secondary consumers (c. 4% enriched over primary consumers). Bat species utilizing different microhabitats formed distinct isotopic clusters (metric analyses of delta C-13-delta N-15 bi-plots), but taxa foraging in the same microhabitat did not show more pronounced trophic differentiation than those occupying different microhabitats. As revealed by multivariate analyses, no discernible feeding competition was found in the local assemblage amongst congeneric species as compared with non-congeners. In contrast to ecological niche theory, but in accordance with studies on New and Old World bat assemblages, competitive interactions appear to be relaxed at Ankarana and not a prevailing structuring force.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 595
Quantum diffusion with disorder, noise and interaction
Creators: name: D'Errico, C.
name: Moratti, M.
name: Lucioni, E.
name: Tanzi, L.
name: Deissler, B.
name: Inguscio, M.
name: Modugno, G.
name: Plenio, M. B.
name: Caruso, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Disorder, noise and interaction play a crucial role in the transport properties of real systems, but they are typically hard to control and study both theoretically and experimentally, especially in the quantum case. Here we explore a paradigmatic problem, the diffusion of a wavepacket, by employing ultra-cold atoms in a disordered lattice with controlled noise and tunable interaction. The presence of disorder leads to Anderson localization, while both interaction and noise tend to suppress localization and restore transport, although with completely different mechanisms. When only noise or interaction are present we observe a diffusion dynamics that can be explained by existing microscopic models. When noise and interaction are combined, we observe instead a complex anomalous diffusion. By combining experimental measurements with numerical simulations, we show that such anomalous behavior can be modeled with a generalized diffusion equation, in which the noise- and interaction-induced diffusions enter in an additive manner. Our study reveals also a more complex interplay between the two diffusion mechanisms in regimes of strong interaction or narrowband noise.
description: 11 pages, 10 figures
Assimilating through social networks? The importance of networks in assimilation trajectories
Creators: name: Le, Andrew Nguyen
Publisher: name: University of British Columbia
Year: 2012

description: The assimilation outcomes of second generation youths have been hotly debated amongst scholars (Alba et al. 2011, Haller et al. 2011). While the outcomes are contested, it is undeniable that ethnic organizations play a central role in the second generation’s assimilation trajectory. Zhou and Bankston (1998) suggest that participating in ethnic religious institutions promotes upward assimilation through instilling an ethnic identity onto youths. My research on the greater Seattle area Vietnamese Buddhist youth organizations uncovered similar mechanisms that led to Zhou and Bankston’s overall quantitative findings, but also uncover the importance of resource brokering and networks. Based on 43 in-depth interviews, I find that organization participation promotes upward and downward assimilation, and the friendships formed inside ethnic organizations play a crucial role in assimilation outcomes. My project shows that participation in Buddhist youth groups instills a Vietnamese-American identity on youths and, in turn, this ethnic identity can lead to upward assimilation only if the individual is part of a peer network that promotes normative values. Downward assimilation can be associated with youth group participation if the youths enter peer networks that promote deviant behaviors. These deviant peer networks can supersede the positive effects of the youth organization’s overall influence on the individual.
Detecting Vortex-Induced-Vibrations of Flexible Pipes using Internal Pressure Sensors
Creators: name: Webber, Scott
Publisher: name: Schulich School of Engineering
Year: 2024
Subjects: subject: Internal Flow Pressure Sensing
subject: Vortex-Induced-Vibration
subject: Pipelines
subject: Engineering--Mechanical

description: The internal flow pressure response of a fluid-conveying-pipe undergoing lateral oscillations is investigated experimentally using a new pipe flow loop facility. The facility is capable of actuating 1/2" PVC pipe up to 1 Diameter, 4 Hz. and directly measuring the corresponding internal fluid pressure. The dependence of the internal pressure response on mean internal flow velocity, oscillation frequency and amplitude, oscillating span length, and downstream outlet length is investigated for a limited range of those parameters. Simplified models are developed based on control volume stretching and viscous oscillatory pipe flows and are compared to the experimental data. Both models and experimental data suggest a sinusoidal response pressure gradient ∂P/∂x (t) with frequency 2f_in and amplitude proportional to f^2_inA^2_in/L, with f_in, A_in, and L representing the span oscillation frequency, oscillation amplitude and length, respectively. Further experimentation is required to adjust the models empirically to the data. The generated internal pressure is used as a target signal amidst background pressure noise to investigate the behaviour of a power spectrum sensor used to detect pipe oscillations via internal pressure measurements.
Analysis and modelling of induced seismicity in fluid-driven settings and on laboratory faults
Creators: name: Khajehdehi, Omid
Publisher: name: Graduate Studies
Year: 2024
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Statistics
subject: FOS: Mathematics

description: Seismicity, whether natural from tectonic plate motion, induced by industrial activities, or observed on laboratory faults, is complex due to nonlinearities and long-range spatiotemporal correlations in the Earth's crust. Previous studies revealed spatiotemporal clustering and aftershocks, reminiscent of tectonic earthquakes, in fluid-induced seismicity and seismicity on laboratory faults. Fluid-induced seismicity arises from industrial activities like hydraulic fracturing (e.g., a 4.6Mw in Alberta, Canada) and enhanced geothermal systems (e.g., a 5.5Mw in Pohang, South Korea), where high-pressure fluids are injected into the Earth's crust to improve hydrocarbon extraction or geothermal reservoir permeability. This seismicity raises concerns for industry, regulators, and residents, highlighting the challenge of identifying underlying processes and estimating fluid-induced seismic hazards. Further, ongoing debate persists on the presence or absence of magnitude clustering in seismicity, with implications for improved short-term earthquake magnitude forecasting. Therefore, to address these challenges, we investigate the underlying causes of field observations from a modelling perspective and utilize laboratory stick-slip experiments to enhance our understanding of seismicity. We introduce a novel model of fluid-induced seismicity combining viscoelasticity with fluid diffusion and invasion percolation to simulate crustal rheology and stress interactions in porous media. This model accurately elucidates the spatial footprint of fluid-induced seismicity and reproduces aftershocks akin to tectonic loading. Moreover, at high injection rates, recovering aftershock statistical properties requires direct access to the internal stress dynamic, potentially explaining the absence of reported aftershock triggering in some studies (e.g., Soultz geothermal sites, France). In a reported case of significant aftershock triggering in the Kiskatinaw area, BC, Canada, we find that smaller magnitude, more frequent triggers primarily drive this triggering, consistent with past instances in fluid-induced settings. Additionally, we observe localized spatiotemporal clustering, characterized by a rapid spatial decay in aftershocks beyond the rupture length, suggesting the dominant influence of fluid migration in this region. Finally, our analysis of seismicity on laboratory faults contributes to the debate over magnitude clustering in seismicity. Our study reveals magnitude clustering occurring exclusively during slip events on laboratory faults, resulting from variations in frequency-magnitude distributions. This thesis offers valuable insights into complex seismicity dynamics and enhances efforts in (fluid-induced) seismic hazard assessments.
Isotropy in the two-point angular correlation function of the CMB
Creators: name: Zhang, Sophie
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the directional dependence of the angular two-point correlation function in maps of the cosmic microwave background (CMB). We propose two new statistics, one which measures the correlation of each point in the sky with a ring of points separated angle theta away, and a second that measures the missing angular correlation above 60 degrees as a function of direction. Using these statistics, we find that most of the low power in cut-sky maps measured by the WMAP experiment comes from unusually low contributions from the directions of the lobes of the quadrupole and the octupole. These findings may aid a future explanation of why the CMB exhibits low power at large angular scales.
description: 9 pages; adjusted format, edited captions, and added references
Hoho hirtipalma Lowry & Fenwick 1983
Creators: name: HUGHES, L. E.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Maeridae
Hoho
Hoho hirtipalma

description: Hoho hirtipalma Lowry & Fenwick, 1983 Mallacoota marilla J.L. Barnard, 1972: 250, figs 146, 147 (in part as PS phenotype). Hoho hirtipalma Lowry & Fenwick, 1983: 228, figs 19–22. Type locality. North-west corner of Hoho Bay, The Snares, New Zealand (48º07'S 166º36'E). Material examined. Tasmania. 1 male, 1 female, SAMA C6477, off O’Hara Bluff, Tasman Penninsula (43°5’17”S 147°57’53”E), 10–15 m, on bryozoans, 2 August 1991, coll. K.L. Gowlett-Holmes & G. Myors. South Australia. 1 male, 1 female, C6476, off Cape D’Estaing Reef, Kangaroo Island (35°34’47”S 137°29’29”S), ~ 20 m, sand, red algae, 28 January 1989, Coll. K.L. Gowlett-Holmes; 1 males, C6472, extreme south end of Pondalowie Bay, Yorke Penninsula (35°13’30”S 136°50’15”S), under rocks at low tide, 7 November 1976, coll. W. Zeidler and I.C. Kowanko. Remarks. Material examined extends the range of H. hirtipalma into Tasmania. Distribution. Tasmania. Tasman Penninsula (current study). South Australia: Kangaroo Island, Yorke Penninsula (J.L. Barnard 1972; current study). Western Australia: Point Peron (J.L. Barnard 1972).
description: Published as part of HUGHES, L. E., 2011, New species of Hoho, Mallacoota and Parelasmopus (Maeridae: Amphipoda) from Australian waters, pp. 1-79 in Zootaxa 2955 (1) on page 11, DOI: 10.11646/zootaxa.2955.1.1
description: {"references": ["Lowry, J. K. & Fenwick, G. D. (1983) The shallow-water gammaridean Amphipoda of the subantarctic islands of New Zealand and Australia: Melitidae, Hadziidae. Journal of the Royal Society of New Zealand, 13, 201 - 260.", "Barnard, J. L. (1972) Gammaridean Amphipoda of Australia, Part I. Smithsonian Contributions to Zoology, 103, 1 - 333."]}
Non-Indigenous Leaders’ Perceptions of their Leadership in K to 12 Nunavut Schools
Creators: name: Sharif, Shamimara
Publisher: name: Werklund School of Education
Year: 2024
Subjects: subject: educational leadership
subject: Indigenous Educational leadership
subject: Indigenous education
subject: Northern schools
subject: Nunavut education
subject: Inuit worldviews
subject: Education

description: This case study explores non-Indigenous leaders’ perceptions of their leadership in kindergarten to grade twelve (K to 12) Nunavut schools. Educational leadership influences student achievements, including graduation, in schools of Indigenous communities (Odulaja & Halseth, 2018; Truth and Reconciliation Commission of Canada, 2015). Understanding the context that includes the social and historical circumstances of K to 12 Nunavut schools, perceptions the non-Indigenous educational leaders bring to the system, and the relationship between the two, is vital for non-Indigenous educational leaders in K to 12 Nunavut schools. Leaders’ perceptions of their leadership are also vital to educational pedagogy in schools as they influence their choices when leading. There is also insufficient research on non-Indigenous leaders’ perceptions of their leadership in K to 12 Nunavut schools. The following questions guided the study: How do non-Indigenous leaders perceive their leadership in K to 12 Nunavut schools? How do the beliefs and values of non-Indigenous leaders inform their leadership in K to 12 Nunavut schools? I approached the study through a qualitative case study methodology in keeping with Merriam’s (1998) interpretation. I gathered data using semi-structured interviews, reflective journals, and public records. The analysis of data reveals four main findings: (a) a necessity for understanding educational leadership from the perspective of Elders and Indigenous Knowledge Keepers, (b) the understanding of the continuity of colonial relations within the K to 12 Nunavut schools, (c) a necessity for Indigenous representation of their language, culture, and knowledge in K to 12 Nunavut schools, and (d) the importance of embedding Inuit Indigenous perspectives within the K to 12 Nunavut schools. The interpretation process highlights how I perceived my leadership, gaps in the K to 12 Nunavut education system, and the importance of Inuit Indigenous involvement in educational leadership in Nunavut to overcome the colonial narrative in Nunavut education.
Banoni, Piva and Papuanization
Creators: name: Lincoln, Peter (Ed.)
Publisher: name: Pacific Linguistics
Year: 1976

description: BANONI, PIVA AND PAPUANIZATION. 77Acknowledgments 77 0.1. Introduction 77 0.2. Definitions 78 0.3. Orthography 78 1.0. LEXICAL COMPARISON OF BASIC VOCABULARY 79 1.1. Shared Words 80 1.2. Extent of Influence 87 2.0. GRAMMATICAL COMPARISON 87 2.1. Sketch of Banoni Aspect 87 2.2. Notes on Aspect in Piva 88 2.3. Rotokas Verb Sketch (from VRPE) 89 2.4. Conclusion 89 2.5. Comparison of Word Order 89 3.0. TEXTUAL COMPARISON OF BANONI AND PIVA 90 3.1. The Text 90 3.2. Textual Comparison of Syntax 94 3.3. Further Lexical Comparison 95 3.4. Glossary of Text with Rotokas Equivalents 95 3.5. Extent of Influence in Narrative Vocabulary 97 3.6. Conclusion 97 4.0. DISCUSSION 97 4.1. A Case of Papuanization 97 4.2. Conclusion 98 4.3. Dual-lingualism and Papuanization 99 5.0. APPENDIX: LEXICOSTATISTICS OF BANONI AND PIVA LISTS 99Notes added in proof, 101Notes 102Bibliography 103
Unexplored Dimensions of Processing Phase Inversion during Polymer Melt Blending
Creators: name: Ramakrishnan, Shashank
Publisher: name: Schulich School of Engineering
Year: 2024
Subjects: subject: Polymer blends
subject: morphology
subject: polypropylene
subject: Visualization
subject: Chemistry--Polymer

description: Blending of multiple polymers is a commonly utilized strategy to achieve a balance of a variety of critical properties of polymeric materials, such as strength, toughness, thermal stability, ductility, etc. Although exhaustive studies have helped understand the thermodynamic basis for the phase diagram of multi-component blended polymers, often it is the melt processing methodology adopted that governs the final morphology in the product and, in turn, its material properties. The work presented in this thesis deals with examining the morphological changes in polymer blends during the processing cycle. Specifically, when a binary polymer blend consisting of components with a large difference in their softening temperatures is processed, an inversion in the phase continuity occurs if the higher melting component is present at a larger volume fraction. This inversion in the phase continuity was coined as the processing-phase inversion. Although several studies have shown this type of processing induced inversion, a detailed understanding of the mechanism has not been fully revealed. In this thesis, we looked at understanding the influence of the nature of minor and major components, the occurrence of an in-situ reaction, and the addition of an inorganic nanofiller on the processing-phase inversion. Microscopic techniques, such as SEM or optical imaging, have been primarily used to characterize the different morphologies that occur during the inversion. In this thesis, we analyze the torque monitored during the mixing along with the recorded melt temperature to independently determine the region of inversion, apart from morphological imaging.
The DPOSS II distant compact group survey: the EMMI-NTT spectroscopic sample
Creators: name: Pompei, E.
name: Iovino, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This paper presents the results of the redshift survey of 138 candidate compact groups from the DPOSS II catalog (Iovino et al., 2003; de Carvalho et al. 2005), which extends the available redshift range of spectroscopically confirmed compact groups of galaxies to z~0.2. The aims of the survey are to confirm group membership via spectroscopic redshift information, to measure the characteristic parameters of the confirmed groups, namely mass, radius, luminosity, velocity dispersion and crossing time, and to compare them with those of nearby compact groups. Using available information from the literature, we also studied the surrounding group environment and searched for additional, previously unknown, group members, or larger scale structures to whom the group might be associated. Of the 138 observed groups, 96 had three or more concordant galaxies, i.e. a 70% success rate. Of these 96, 62 are isolated on the sky, while the other 34 are close on the sky to a larger scale structure. The remaining objects turned out to be couple of pairs or chance projection of galaxies on the sky. Group environment and the characteristics parameters (mass, crossing time, velocity dispersion) are evaluated and discussed.
description: Accepted on A&A, version updated to match the printed one. The paper will read well even without printing figures 8 and 9
title: Nachrichten aus der Heimat auf der anderen Seite des Flusses
Creators: name: Zajac, Peter
Publisher: name: Fachinformationsdienst Slavistik
Year: 2009
Subjects: subject: Beňova, Jana Plán odprevádzania. Cafe Hyena
subject: Rezension
subject: 491.8

description: Petržalka ist das größte Wohngebiet der Slowakei, in dem man niemals da ankommt, wo man hin will. Schlafcontainer, Spritzen und Hip-Hop. Petržalka ist die imaginäre Stadt in Jana Beňovas Buch “Plán odprevádzania. Cafe Hyena” (Der Geleitplan. Café Hyäne).
description: novinkigegengelesen
RG flow of Weyl-invariant dilaton gravity
Creators: name: Percacci, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Any theory can be made Weyl invariant by introducing a dilaton. It is shown how to construct renormalization group equations for gravity that maintain this property. Explicit calculations are given only in the simplest approximation, namely for the one loop beta functions of a dilaton conformally coupled to a dynamical metric, but the results have wider validity. This formalism could be used to define the meaning of a theory with a position-dependent cutoff: it is equivalent to a theory with a constant cutoff, but a conformally related metric.
description: To appear in New Journal of Physics. 20 pages
The Unexplored Link between Communication and Trust in Aviation Maintenance Practice
Creators: name: CHATZI, ANNA
name: Martin, Wayne
name: Bates, Paul
name: Murray, Patrick
Publisher: name: University of Limerick
Year: 2023
Subjects: Language, communication and culture

description: Communication and trust are fundamental factors in the operation of complex and highly regulated industries like aviation maintenance. This article reviews two preconditions of human error: communication and trust, as well as the way these are linked as aviation researchers have only recently started to study factors not individually, but rather by combining their effects. Communication is essential in the exchange of information and knowledge in aviation maintenance. The conditions that make communication effective and miscommunication avoidable are explored. Next, ways of communication, like aircraft maintenance documentation, are discussed along with appreciation of how communication is valued in aviation maintenance. Trust within different aspects of maintenance practice (interpersonal trust, trust towards technology, initial levels of trust) is presented and analysed, as well as examined as a prerequisite of effective communication. The characteristics of trust, its forms and results are identified in the literature with limited sources from the aviation bibliography, as it is a domain barely explored. Therefore, a gap has been identified in the study of trust and the exploration of the combined traits of communication and trust in aviation maintenance. Recommendations for additional research in this field are provided.
HoloType- AR-Based Educational Software for Nonspeaking Autistic People
Creators: name: Shahidi, Ali
Publisher: name: Graduate Studies
Year: 2024
Subjects: subject: Autism
subject: Education
subject: Accessibility
subject: AR
subject: HCI
subject: Education
subject: Computer Science

description: Approximately one-third of individuals with autism are nonspeaking: They cannot communicate effectively using speech. Some traditional accounts suggest that these individuals cannot talk because they lack the symbolic capacity for language. And yet, recent studies have shown that these individuals' cognitive abilities are vastly underestimated by standardized tests, and that difficulties with motor skills and movement contribute to their difficulty with speech. One consequence of the traditional accounts of nonspeaking autism is that life skills (rather than academic content) tend to be emphasized in schooling. Without access to meaningful academic content, their educational and vocational opportunities are significantly limited. This research addresses feasibility of using educational applications designed for Augmented Reality (AR) head mounted devices (HMDs) for this population. Prior studies suggest that such applications can better accommodate some of the unique characteristics to the target population e.g., their tendency to move constantly as a sensory regulation mechanism and their lack of fine motor skills, than tablet or desktop based applications. However, there is a lack of existing studies that have implemented and evaluated such applications, which is a gap my works seeks to explore.In the first phase of my research, I developed an AR-based educational application called HoloType. The application was developed after extensive consultation with the nonspeaking community (nonspeakers who have learned to communicate by typing, their communication partners, parents, and occupational therapists). The usability of this application was evaluated via a pilot study involving a nonspeaking autistic young adult. Feedback from the user was used to redesign the system to improve its usability. To the best of my knowledge, this is the first study to develop an AR-based educational application in close collaboration with a nonspeaking autistic individual. The next phase involved a more extensive study where the refined version of HoloType was tested on 5 individuals (including the pilot study user). Results show that most participants were able to use the app and their performance on educational tasks such as comprehension and spelling were consistent with their performance doing similar tasks with a human educator. In consultation with a communication partner whose caseload consists of nonspeaking autistic students, I also designed a version of the application that allows both an educator and a student to share a common AR educational experience. Overall, my research suggests good potential for the use of AR HMD-based educational applications for this population. My work also offers best practice design and process recommendations for building and testing AR-based educational apps for this population.
Engaging with Uncertainty: Three Empirical Studies
Creators: name: Ma, Yan
Publisher: name: Graduate Studies
Year: 2024
Subjects: subject: Accounting

description: Engaging with uncertainty is vital in business because it can either generate or destroy wealth. My dissertation, comprising three empirical studies, investigates management decision-making and firm performance under uncertainty. The first study examines how organizational stress represented by resource constraints impacts firm performance. Drawing from the psychology-based Yerkes-Dodson (1908) Law, we propose that, while some amount of stress activated by constraints enhances performance, too much stress hampers performance. Using textual measures to gauge constraints that activate stress at the organizational level, we find an inverted-U relationship between constraints and return on assets. This relationship is more aligned with creativity, reflected by profit margin and innovation activities, than with efficiency in resource usage captured by asset turnover. My second study analyzes the compensation structure of the top leadership team (TLT), a group of executives responsible for navigating the organization through uncertain times. This study recognizes the importance of both the CEO's unique role and the dynamics among team members through: (1) CEO pay slice, reflecting payment for the CEO’s team leadership and management skill, and (2) pay dispersion among the CEO’s top team, capturing the weights on team versus individual based payments. We find that TLTs characterized by a large CEO pay slice and low degree of pay dispersion among the CEO’s top team outperform others in terms of return on assets. These results highlight complementary relations between CEO team leadership and team-based compensation in compensating TLTs. My third study analyzes how a strategic focus on balance sheet strength influences investment decisions and performance among Canadian oil and gas firms that navigate through uncertainties. Based on discussions with industry experts, we identify two groups of firms: those aggressively investing during favorable conditions – “making hay while the sun shines”, and those investing more prudently – “saving for a rainy day”. While investment in downturns declined generally for both types of firms, the decline in investment was significantly less for rainy day companies. These rainy day firms make shrewder acquisitions and achieve greater operational efficiency over time. However, rainy day firms have lower market valuations during upturns compared to making hay firms.
Exclusive $c\to s,d$ semileptonic decays of ground-state spin-1/2 doubly charmed baryons
Creators: name: Albertus, C.
name: Hernández, E.
name: Nieves, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We evaluate exclusive semileptonic decays of ground-state spin-1/2 doubly heavy charmed baryons driven by a $c\to s,d$ transition at the quark level. Our results for the form factors are consistent with heavy quark spin symmetry constraints which are valid in the limit of an infinitely massive charm quark and near zero recoil. Only a few exclusive semileptonic decay channels have been theoretically analyzed before. For those cases we find that our results are in a reasonable agreement with previous calculations.
description: 13 latex pages, 3 figures, 2 tables. A new figure added, corrected misprints
Experimental Investigation on the Shear Strength of Masonry Prisms
Creators: name: Farjad, Sahar
Publisher: name: Schulich School of Engineering
Year: 2024
Subjects: subject: Masonry
subject: Shear strength
subject: Experimental
subject: Engineering--Civil

description: Masonry structures are used ubiquitisly all over the world from many years ago till today. However, there are still lots of unknowns in terms of their behavior. These ambiguities become even more significant when the structure is exposed to the shear loads. In addition, the Canadian masonry standard has been the focus of numerous studies, and it was shown that this standard might be improved in many aspects regarding the shear strength of masonry. In this study, first the variability of the mortar joint thickness in both brick and concrete block masonry was explored. Then, considering these variation, experimental tests were conducted to investigate the effect of mortar joint thickness on the shear strength of triplet masonry prisms made with concrete blocks. With regard to the conflict that exist in the literature about the effect of mortar type on the shear strength, it was another parameter investigated by a series of experiments. As evidenced by the results of this study, mortar type in fully grouted (FG) and partially grouted (PG) prisms was not an influencing parameter on the shear strength, as well as mortar joint thickness of fully-grouted prisms. It was shown that joint thickness did affect the shear stiffness though. In fact it was argued that mason experience and proficiency affect the shear stiffness and not the shear strength of FG prisms in this study. However, this study showed that mortar joint thickness does have some effect on the shear strength in hollow masonry prisms. According to the results the higher joint thickness showed less shear strength. Although to conclude this as a general rule, more experiments are required.
FSME: Risikogebiete in Deutschland (Stand: Januar 2019) Bewertung des örtlichen Erkrankungsrisikos
Creators: name: Koch-Institut, Robert
Publisher: name: Robert Koch-Institut
Year: 2019
Subjects: subject: FSME
subject: Risikogebiet
subject: Zecken
subject: Impfung
subject: Naturherde
subject: 610 Medizin und Gesundheit

description: Das Robert Koch-Institut hat die aktua­li­sierte Karte der FSME-Risiko­gebiete ver­öffent­licht. Es gibt fünf neue Risiko­gebiete, darunter ist mit dem Land­kreis Ems­land auch erst­mals Nieder­sachsen betroffen. Die anderen vier neuen FSME-Risiko­gebiete - ein Kreis in Sachsen und drei Kreise in Bayern - grenzen an be­stehen­de Risiko­gebiete. Die meisten Risiko­gebiete liegen in Bayern, Baden-Württem­berg, Süd­hessen, Süd­ost­thüringen und Sachsen. Je ein FSME-Risiko­gebiet gibt es seit Jahren in Mittel­hessen, im Saar­land und in Rhein­land-Pfalz. Ein­zelne FSME-Fälle sind in den ver­gan­genen Jahren in fast allen Bundes­ländern re­gis­triert worden, in den 1960er Jahren gab es z.B. in Mecklen­burg-Vor­pommern und in Branden­burg ver­mehrt FSME-Infektionen. Bei Aufenthalt in FSME-Risiko­ge­bieten und mögli­chem Kontakt zu Zecken empfiehlt die Ständige Impf­kommission am Robert Koch-Institut eine Schutz­impfung.
A Mock Data Challenge for the Einstein Gravitational-Wave Telescope
Creators: name: Regimbau, Tania
name: Dent, Thomas
name: Del Pozzo, Walter
name: Giampanis, Stefanos
name: Li, Tjonnie G. F.
name: Robinson, Craig
name: Broeck, Chris Van Den
name: Meacher, Duncan
name: Rodriguez, Carl
name: Sathyaprakash, Bangalore S.
name: Wójcik, Katarzyna
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Einstein Telescope (ET) is conceived to be a third generation gravitational-wave observatory. Its amplitude sensitivity would be a factor ten better than advanced LIGO and Virgo and it could also extend the low-frequency sensitivity down to 1--3 Hz, compared to the 10--20 Hz of advanced detectors. Such an observatory will have the potential to observe a variety of different GW sources, including compact binary systems at cosmological distances. ET's expected reach for binary neutron star (BNS) coalescences is out to redshift $z\simeq 2$ and the rate of detectable BNS coalescences could be as high as one every few tens or hundreds of seconds, each lasting up to several days. %in the sensitive frequency band of ET. With such a signal-rich environment, a key question in data analysis is whether overlapping signals can be discriminated. In this paper we simulate the GW signals from a cosmological population of BNS and ask the following questions: Does this population create a confusion background that limits ET's ability to detect foreground sources? How efficient are current algorithms in discriminating overlapping BNS signals? Is it possible to discern the presence of a population of signals in the data by cross-correlating data from different detectors in the ET observatory? We find that algorithms currently used to analyze LIGO and Virgo data are already powerful enough to detect the sources expected in ET, but new algorithms are required to fully exploit ET data.
description: accepted for publication in Physical Review D -- 18 pages, 8 figures
The Finsler-like geometry of the (t,x)-conformal deformation of the jet Berwald-Moor metric
Creators: name: Neagu, Mircea
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 53C60, 53C80, 83C22

description: The aim of this paper is to develop on the 1-jet space J^1(R, M^n) the Finsler-like geometry (in the sense of distinguished (d-) connection, d-torsions, d-curvatures and some gravitational-like and electromagnetic-like geometrical models) attached to the (t,x)-conformal deformation of the Berwald-Moor metric.
description: 12 pages
Beyond fragmentation : Donald Barthelme and writing as political act
Creators: name: Chaskes, Daniel
Publisher: name: University of British Columbia
Year: 2012

description: “Beyond Fragmentation: Donald Barthelme and Writing as Political Act” extracts Barthelme from recursive debates over postmodernism and considers him, instead, within the intellectual contexts he himself recognized: the avant-garde, the phenomenological, and the transnational. It is these interests which were summoned by Barthelme in order to develop an aesthetic method characterized by collage, pastiche, and irony, and which together yielded a spirited response to political phenomena of the late twentieth century. I argue that Barthelme was an author who believed language had been corrupted by official discourse and who believed, more importantly, that it could be recovered through acts of combination and re-use. Criticism influenced by the cultural theory of Fredric Jameson has frequently labeled Barthelme’s work a mimesis of an age in which meaning had become devalued by rampant production and consumption. I revise this assumption by arguing that Barthelme’s work reacts to what was in fact a stubbornly efficient use of discourse for purposes of propaganda, bureaucracy, and public relations. Drawing on the biographical material available, and integrating that material with original archival work, I uncover the specific sources of Barthelme’s political discontent: Watergate, the war in Vietnam, a growing militarization in the United States, and the ideological rigidity of the 1960s counterculture. In three biographical chapters I connect these concerns to Barthelme’s novels and short stories, which represent attempts to create avant-garde objects that might challenge the specific rationalities (the commonality of violence, for example) political action is premised upon. I show Barthelme inserting political subject matter into texts alongside a formal apparatus that suggests the way such matter had been misconceived and misrepresented, often with horrific consequences. In two chapters of close reading, I first read the short story “Paraguay,” from City Life (1970), as a critique of American neo-imperialism in Latin America. In that piece, Barthelme explores the dual ways--official and cultural--a homogenizing American influence is felt abroad. Next, I compare Barthelme to author and activist Grace Paley, whose story collection Enormous Changes at the Last Minute (1974) provides revealing context for Barthelme’s own political interventions.
Fund von Zecken der Gattung Hyalomma in Deutschland
Creators: name: Hagedorn, Peter
Publisher: name: Robert Koch-Institut
Year: 2019
Subjects: subject: Hyalomma
subject: Zecken
subject: Krim-Kongo-Virus
subject: hämorrhagisches Fieber
subject: enzoonotisch
subject: 610 Medizin und Gesundheit

description: Im Jahr 2018 wurden 19 Hyalomma-Zecken, die Bürger in verschiedenen Bundesländern gefunden hatten, im Robert Koch-Institut molekularbiologisch untersucht. Im Epidemiologischen Bulletin 7/2019 hat das RKI eine Risikoeinschätzung veröffentlicht.
Glasklare Handwerkskunst – ein Schlangen- oder Flügelglas aus Gronau
Creators: name: Jülich, Susanne
Publisher: name: Archäologie in Westfalen-Lippe
Year: 2023

description: .
description: Archäologie in Westfalen-Lippe, ARCHÄOLOGIE IN WESTFALEN 2021 (2022)
A New Exponential Gravity
Creators: name: Xu, Qiang
name: Chen, Bin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a new exponential f(R) gravity model with f(R)=(R-λc)e^{λ(c/R)^n} and n>3, λ\geq 1, c>0 to explain late-time acceleration of the universe. At the high curvature region, the model behaves like the \LambdaCDM model. In the asymptotic future, it reaches a stable de-Sitter spacetime. It is a cosmologically viable model and can evade the local gravity constraints easily. This model share many features with other f(R) dark energy models like Hu-Sawicki model and Exponential gravity model. In it the dark energy equation of state is of an oscillating form and can cross phantom divide line ω_{de}=-1. In particular, in the parameter range 3< n\leq 4, λ\sim 1, the model is most distinguishable from other models. For instance, when n=4, λ=1, the dark energy equation of state will cross -1 in the earlier future and has a stronger oscillating form than the other models, the dark energy density in asymptotical future is smaller than the one in the high curvature region. This new model can evade the local gravity tests easily when n>3 and λ>1.
description: 12 pages, 8 figures
Some Problems on the Dynamics of Positive Characteristic Tori
Creators: name: Gunn, Keira
Publisher: name: Graduate Studies
Year: 2024
Subjects: subject: Number Theory
subject: Tori
subject: Dynamics
subject: Positive Characteristic
subject: Mathematics
subject: FOS: Mathematics

description: The positive characteristic tori T_F are a set of counterparts to the real torus T=R/Z. In positive characteristic we define the ``integers'' as polynomials with coefficients from a finite field F (Z_F:=F[t]) and the ``reals'' as the field of Laurent series with coefficients in F (R_F:=F((t))) so that the positive characteristic torus over F is similarly defined: T_F:=R_F/Z_F. While T and T_F have some structural and operational similarities, they behave fundamentally differently, particularly with regards to dynamics. In this dissertation we seek analogues to known results in R and T. We find that both sets have similar ergodicity results but that orbits of affine maps and other areas of dynamics show significant differences. In particular, we construct an Artin-Mazur zeta function that looks significantly different to its counterpart in T, demonstrate that Furstenberg's orbital density theorem falls apart in positive characteristic, and establish that the intersection of orbits of affine maps rely on sets that depend on powers of the characteristic of F rather than arithmetic progressions. At first glance, the simplicity of working in T_F and its similarities to T suggest that we should be able to find many of the same simple results; however in reality the structure of T_F consists of infinitely defined sub-structures constructed by shifts of Frobenius maps into itself and these sub-structures present themselves frequently in a manner that does not occur in T