cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Building an artificial-intelligence powered metaphor-based visualizer for human self-understanding
Creators: name: Rakshit, Abhishek
Publisher: name: University of British Columbia
Year: 2025

description: This thesis explores the design and development of Indra’s Net, an Artificial Intelligence (AI) powered metaphor-based visualizer that aims to enhance human self-understanding through dynamic and interactive visual metaphors. The platform translates abstract psychological states and processes such as withdrawal, arousal, openness etc. into immersive visualizations, using the universal metaphor of light. Built on Unreal Engine 5, Indra’s Net combines visual technologies, such as dynamic lighting, advanced material rendering, and particle systems, with AI-driven interactivity to create a novel tool for introspection and emotional regulation. The development process involved iterative prototyping to establish a framework where psychological concepts are systematically mapped to optical phenomena. Key technical innovations include the creation of a dual-surface spherical vessel in Blender, capable of depicting both internal and external cognitive interactions, and the integration of Unreal Engine 5’s particle systems and materials assets to enhance performance and realism. The platform’s modular architecture seamlessly connects an integrated Large Language Model (LLM) with the visualizer, enabling the AI assistant to interpret user inputs and dynamically update visualizations in real time. This conversational interaction supports intuitive onboarding and tailored user experiences. Indra’s Net facilitates exploration of mental states and interpersonal dynamics, promoting self-reflection and creative insight through its metaphor-driven representations. The platform serves as both a standalone tool for personal growth and a potential resource for art therapy and mental health diagnostics. Future enhancements, such as biosensor integration, multi-user capabilities, and sonification, aim to provide a multisensory and collaborative experience. By emphasizing both the technical implementation and the potential applications, this thesis demonstrates how Indra’s Net bridges abstract psychological concepts with potentially actionable visualizations. The project underscores the value of combining advanced visualization technologies and AI to create tools that inspire self-awareness, emotional regulation, and well-being.
Implosion, Contraction and Moore-Tachikawa
Creators: name: Dancer, Andrew
name: Kirwan, Frances
name: Martens, Johan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Symplectic Geometry (math.SG)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We give a survey of the implosion construction, extending some of its aspects relating to hypertoric geometry from type $A$ to a general reductive group, and interpret it in the context of the Moore-Tachikawa category. We use these ideas to discuss how the contraction construction in symplectic geometry can be generalised to the hyperkähler or complex symplectic situation.
description: 23 Pages. To appear in Int. J. Math. (special issue in honour of Oscar Garcia Prada)
DWI and complex brain network analysis predicts vascular cognitive impairment in spontaneous hypertensive rats undergoing executive function tests
Creators: name: López-Gil, Xavier
name: Amat-Roldan, Iván
name: Tudela, Raúl
name: Castañé, Anna
name: Prats-Galino, Alberto
name: Planas, Anna M.
name: Farr, Tracy D.
name: Soria, Guadalupe
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2014
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: The identification of biomarkers of vascular cognitive impairment is urgent for its early diagnosis. The aim of this study was to detect and monitor changes in brain structure and connectivity, and to correlate them with the decline in executive function. We examined the feasibility of early diagnostic magnetic resonance imaging (MRI) to predict cognitive impairment before onset in an animal model of chronic hypertension: Spontaneously Hypertensive Rats. Cognitive performance was tested in an operant conditioning paradigm that evaluated learning, memory, and behavioral flexibility skills. Behavioral tests were coupled with longitudinal diffusion weighted imaging acquired with 126 diffusion gradient directions and 0.3 mm3 isometric resolution at 10, 14, 18, 22, 26, and 40 weeks after birth. Diffusion weighted imaging was analyzed in two different ways, by regional characterization of diffusion tensor imaging (DTI) indices, and by assessing changes in structural brain network organization based on Q-Ball tractography. Already at the first evaluated times, DTI scalar maps revealed significant differences in many regions, suggesting loss of integrity in white and gray matter of spontaneously hypertensive rats when compared to normotensive control rats. In addition, graph theory analysis of the structural brain network demonstrated a significant decrease of hierarchical modularity, global and local efficacy, with predictive value as shown by regional three-fold cross validation study. Moreover, these decreases were significantly correlated with the behavioral performance deficits observed at subsequent time points, suggesting that the diffusion weighted imaging and connectivity studies can unravel neuroimaging alterations even overt signs of cognitive impairment become apparent.
title: Review and Enhancement of New Risk Assessment Concepts under REACH
title: Review and Enhancement of New Risk Assessment Concepts under REACH
titleType: AlternativeTitle
Creators: name: Warnecke, Dietmar
name: Duis, Karen
name: Knacker, Thomas
Publisher: name: Umweltbundeamt
Year: 2014
Subjects: subject: REACH-System
subject: Chemikalien
subject: Chemierisiko
subject: REACH
subject: chemicals
subject: chemical risk
subject: Chemikalien
subject: Chemicals

description: In this project, the guidance documents should be verified using the example of potentially endocrine disrupting (ED) chemicals. Three substances were selected mainly based on in silico (2,4,6-tribromophenol), in vitro (benzanthrone) and in vivo data (benzophenone-2). In order to evaluate the potential for endocrine disruption, several additional in vitro tests and one in vivo test were performed for two of the selected substances. For all three selected substances, an integrated assessment of potential endocrine activity in aquatic vertebrates was performed. Results of this assessment are presented in a non-public annex to this report. Quelle: https://www.umweltbundesamt.de
description: In this project, the guidance documents should be verified using the example of potentially endocrine disrupting (ED) chemicals. Three substances were selected mainly based on in silico (2,4,6-tribromophenol), in vitro (benzanthrone) and in vivo data (benzophenone-2). In order to evaluate the potential for endocrine disruption, several additional in vitro tests and one in vivo test were performed for two of the selected substances. For all three selected substances, an integrated assessment of potential endocrine activity in aquatic vertebrates was performed. Results of this assessment are presented in a non-public annex to this report.
Flavors of entanglement
Creators: name: Jokela, Niko
name: Kastikainen, Jani
name: Penín, José Manuel
name: Ruotsalainen, Helime
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We employ holography to investigate Liu-Mezei renormalization group monotones in conformal field theories influenced by massive flavor degrees of freedom. We examine the entanglement entropy of a spherical subregion in three holographic field theories - $\mathcal{N}=1$ Klebanov-Witten theory, $\mathcal{N}=4$ SYM theory, and ABJM theory - with fundamental flavor. The gravity dual of massive unquenched flavor is described by dynamical D-branes, and we solve their backreaction in the smeared approximation. We compute entanglement entropy using the Ryu-Takayanagi formula in these backreacted geometries. Our findings indicate that the Liu-Mezei A- and F-functions decrease monotonically to leading order in the number of flavors across all examples. Additionally, we calculate the leading flavor contribution to entanglement entropy using an alternative probe brane method that does not require knowledge of backreaction in the bulk geometries. These results consistently match with backreacted calculations in all cases, assuming omission of a specific IR boundary term stemming from a total derivative.
description: 71 pages, 3 figures, 5 appendices, matches the published version
Discovery of Generalizable TBI Phenotypes Using Multivariate Time-Series Clustering
Creators: name: Ghaderi, Hamid
name: Foreman, Brandon
name: Reddy, Chandan K.
name: Subbian, Vignesh
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Quantitative Methods (q-bio.QM)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Traumatic Brain Injury (TBI) presents a broad spectrum of clinical presentations and outcomes due to its inherent heterogeneity, leading to diverse recovery trajectories and varied therapeutic responses. While many studies have delved into TBI phenotyping for distinct patient populations, identifying TBI phenotypes that consistently generalize across various settings and populations remains a critical research gap. Our research addresses this by employing multivariate time-series clustering to unveil TBI's dynamic intricates. Utilizing a self-supervised learning-based approach to clustering multivariate time-Series data with missing values (SLAC-Time), we analyzed both the research-centric TRACK-TBI and the real-world MIMIC-IV datasets. Remarkably, the optimal hyperparameters of SLAC-Time and the ideal number of clusters remained consistent across these datasets, underscoring SLAC-Time's stability across heterogeneous datasets. Our analysis revealed three generalizable TBI phenotypes (α, \b{eta}, and γ), each exhibiting distinct non-temporal features during emergency department visits, and temporal feature profiles throughout ICU stays. Specifically, phenotype α represents mild TBI with a remarkably consistent clinical presentation. In contrast, phenotype \b{eta} signifies severe TBI with diverse clinical manifestations, and phenotype γ represents a moderate TBI profile in terms of severity and clinical diversity. Age is a significant determinant of TBI outcomes, with older cohorts recording higher mortality rates. Importantly, while certain features varied by age, the core characteristics of TBI manifestations tied to each phenotype remain consistent across diverse populations.
description: 25 pages, 10 figures, 4 tables
Airflow Dynamics over a Beach and Foredune System with Large Woody Debris
Creators: name: Grilliot, Michael J.
name: Walker, Ian J.
name: Bauer, Bernard O.
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2019

description: Airflow dynamics over beach-foredune systems can be complex. Although a great deal is known about the effects of topographic forcing and vegetation cover on wind-field modification, the role of large woody debris (LWD) as a roughness element and modifier of boundary layer flow is relatively understudied. Individual pieces of LWD are non-porous elements that impose bluff body effects and induce secondary flow circulation that varies with size, density, and arrangement. Large assemblages of LWD are common on beaches near forested watersheds and collectively have a degree of porosity that increases aerodynamic roughness in ways that are not fully understood. A field study on a mesotidal sandy beach with a scarped foredune (Calvert Island, British Columbia, Canada) shows that LWD influences flow patterns and turbulence levels. Overall mean and fluctuating energy decline as flow transitions across LWD, while mean energy is converted to turbulent energy. Such flow alterations have implications for sand transport pathways and resulting sedimentation patterns, primarily by inducing deposition within the LWD matrix.
Security of quantum position-verification limits Hamiltonian simulation via holography
Creators: name: Apel, Harriet
name: Cubitt, Toby
name: Hayden, Patrick
name: Kohler, Tamara
name: Pérez-García, David
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the link between quantum position-verification (QPV) and holography established in [MPS19] using holographic quantum error correcting codes as toy models. By inserting the "temporal" scaling of the AdS metric by hand via the bulk Hamiltonian interaction strength, we recover a toy model with consistent causality structure. This leads to an interesting implication between two topics in quantum information: if position-based verification is secure against attacks with small entanglement then there are new fundamental lower bounds for resources required for one Hamiltonian to simulate another.
description: (v2: updated presentation)
Photochemistry applied in optical lithography Use of spectroscopic and imaging techniques for the characterization of chemical processes in thin polymer films
Creators: name: Ivan, Marius Gabriel
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Chemistry, General.
subject: Chemistry, Polymer.

description: Most of the research presented in this thesis deals with photochemistry applied to optical lithography, a technology used to manufacture computer chips, memories, and integrated circuits in the micro- and nano-regime. Photochemical reactions induced in thin polymer films by laser radiation at 248, 193 and 157 nm were studied extensively, employing spectroscopy and microscopy techniques. Fluorescent dyes that would change their properties upon interaction with a chemical species were used to gain insights about the photoproducts formed during irradiation. Photolysis of photoacid generators (PAGs) leads to formation of acid, which will then catalyze deprotection of polymer pendant groups. The amount of acid formed as a function of incident dose was determined for different PAGs at various wavelengths and in different resist formulations using Coumarin 6, a fluorescent dye that changes its spectroscopic properties upon interaction with the proton. New and more transparent PAGs, obtained in the group, were characterized at different wavelengths. The amount of acid determined by in polymer titration was used in calculation of the catalytic chain length (CCL). This is a novel method which employs two fluorescent sensors embedded in a polymer film. Hydrofluoric acid (HF) was detected in films of fluorinated polymers exposed to laser radiation at 157 nm, using a fluorescent sensor especially designed and synthesized in the group. The influence of laser radiation on the polymer film was studied using pyrene as fluorescent probes sensitive to the environment changes. Formation of excimers was observed in exposed areas; a very interesting finding is that the molecules forming the excimers do not separate after they emit light, remaining in close proximity for days. The influence of temperature on the excimers in thin polymer films was studied, using polymers with different Tg.
title: Ecografía con contraste (CE) en la detección de metástasis hepáticas
Creators: name: Arias Medina, Ana
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012

description: Objetivos
Material y método
Resultados
Conclusiones
description: Objetivos:
La ecografía convencional es menos sensible que la TC o la RM para detectar metástasis hepáticas.
La introducción de los CE ha incrementado la capacidad de detectar metástasis.
Describimos las indicaciones,
recomendaciones e inconvenientes del...
The Prediction and Control of Design Uncertainty in Low Volume Product Development
Creators: name: George, Andrew
Publisher: name: Swinburne
Year: 2024

description: This research identified the differing processes involved in the design of motor vehicles for volume manufacturing in comparison to the development of vehicle modification products. Field research identified that Australian businesses were challenged in achieving acceptable outcomes in new product development in the automotive aftermarket industry. The countermeasure was proposed as a risk-based framework combining risk identification, risk treatment, and a new process of systematic problem solving to guide outcomes aimed at maintaining the safety, reliability, and regulatory compliance of the unmodified vehicle. The HRM was demonstrated through case studies that involved rolling stock and a kit car chassis.
Orientalism in translation: The one thousand and one nights in 18th century France and 19th century England
Creators: name: Bouagada, Habib
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Literature, Comparative.
subject: Literature, Romance.
subject: Literature, English.
subject: Language, General.

description: The objective of this study is to show how translation contributes to the "Orientalist" project and to the past and present knowledge of the Orient as it has been shaped by different disciplines such as anthropology, history and literature. In order to demonstrate this, I have decided to compare the Arabic text Alf Leyla wa Leyla (The One Thousand and One Nights) with the French translation by Antoine Galland (1704-1706) and the English translation by Sir Richard Burton (1885). According to Edward Said, the Orientalist project or Orientalism is mainly a French and British cultural enterprise that has produced a wide-ranging wealth of knowledge about an Orient that has been represented as an undifferenciated entity with despotism, splendour, cruelty, or even sensuality being its main attributes. I have chosen these translations because they come from places with a long Orientalist tradition. In 18th century France, the age of the Belles infideles, Galland is a man of the Enlightenment who appears to be a precursor of Orientalism as embodied in Montesquieu's Lettres persanes and Votaire's zadig. A century later, Burton's The Arabian Nights, backed by a deep knowledge of Islam, is published. Burton is an official in the service of the British Empire---an empire that takes pride in having the highest number of Muslim subjects. The evolution of Alf Leyla wa Leyla and its translations is followed by an analysis of the shifts applied to the representations of Oriental elements found in it (social and religious practices). These shifts as well as the annotations that refer to Arabo-Islamic culture are related to Galland and Burton's intellectual development and to the socio-historical context of their respective translations.
Model based enterprise processes in a service oriented architecture
Creators: name: Liu, Hao
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Computer Science.

description: Software systems are becoming increasingly complex. A single application needs to provide capabilities and functionalities that cut across an entire enterprise scope. At the same time, many different applications may need to interact with each other as part of an overall business process. Traditional approaches for software system development do not provide efficient solutions to address this problem. This thesis explores how to leverage emerging standards, BPEL (Business Process Execution Language for Web Service), XForms, SOA (Service Oriented Architecture) and XML (eXtensible Markup Language), to implement a Model-based SOA software development approach. It also compares Model-based SOA approach with two other traditional software development approaches in the implementation of an example application in the area of health care: an approval process for accessing data in a medical data warehouse.
Tungiasis-related life quality impairment in children living in rural Kenya
Creators: name: Wiese, Susanne
name: Elson, Lynne
name: Feldmeier, Hermann
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2018
Subjects: subject: Tungiasis
subject: Tunga penetrans
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::616 Krankheiten

description: Background: Tungiasis (sand flea disease) is a neglected tropical skin disease caused by female sand fleas (Tunga spp.) embedded in the skin of the host. The disease is common in sub-Saharan Africa and predominantly affects children living in impoverished rural communities. In these settings tungiasis is associated with important morbidity. Whether tungiasis impairs life quality has never been studied. Methods: The study was performed in 50 children with tungiasis, living in resource-poor communities in coastal Kenya. Based on the Dermatology Life Quality Index (DLQI) a tool was developed to determine life quality impairment associated with tungiasis in children, the tungiasis- related Dermatology of Life Quality Index (tungiasis-related-DLQI). Pain and itching were assessed using visual scales ranging from 0–3 points. The intensity of infection and the acute and chronic severity of tungiasis were determined using standard methods. Results: Seventy eight percent of the patients reported a moderate to very large effect of tungiasis on life quality at the time of the diagnosis. The degree of impairment correlated with the number of viable sand fleas present in the skin (rho = 0.64, p < 0.001), the severity score of acute clinical pathology (rho = 0.74, p < 0.001), and the intensity of pain (rho = 0.82, p < 0.001). Disturbance of sleep and concentration difficulties were the most frequent restriction categories (86% and 84%, respectively). Four weeks after curative treatment, life quality had improved significantly. On the individual level the amelioration of life quality correlated closely with the regression of clinical pathology (rho = 0.61, p < 0.001). Conclusion: The parasitic skin disease tungiasis considerably impairs life quality in children in rural Kenya. After effective treatment, life quality improves rapidly.
title: Causas atraumáticas de rotura esplénica.
Creators: name: De Antonio Sanz, Esther
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Abdomen
subject: Spleen

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
El objetivo del presente estudio es conocer las distintas causas (así como su imagen radiológica) que pueden desencadenar una rotura esplénica,
desechando la etiología...
Entangled biphoton generation in myelin sheath
Creators: name: Liu, Zefei
name: Chen, Yong-Cong
name: Ao, Ping
Publisher: name: arXiv
Year: 2024
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Consciousness within the brain hinges on the synchronized activities of millions of neurons, but the mechanism responsible for orchestrating such synchronization remains elusive. In this study, we employ cavity quantum electrodynamics (cQED) to explore entangled biphoton generation through cascade emission in the vibration spectrum of C-H bonds within the lipid molecules' tails. The results indicate that the cylindrical cavity formed by a myelin sheath can facilitate spontaneous photon emission from the vibrational modes and generate a significant number of entangled photon pairs. The abundance of C-H bond vibration units in neurons can therefore serve as a source of quantum entanglement resources for the nervous system. The finding may offer insight into the brain's ability to leverage these resources for quantum information transfer, thereby elucidating a potential source for the synchronized activity of neurons.
Depositional architecture and evolution of deep-water base-of-slope and slope channel complexes in a passive-margin setting: Isaac Formation, Windermere Supergroup (Neoproterozoic), southern Canadian Cordillera
Creators: name: Ugueto, Lilian L. Navarro
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Geology.

description: The Isaac Formation in the Neoproterozoic Windermere Supergroup crops out in the Castle Creek South area (southwestern Canadian Cordillera) and consists of a more than 1.2 km-thick, laterally continuous slope deposit formed along the ancestral passive margin of western North America. Within the study area, six channel complex sets have been recognized, of which two, named informally Channels 1 and 3, are the focus of this study. Channel 1 exposes an oblique section of base-of-slope channel deposits, whereas Channel 3, at least in its lower part, is a flow-transverse section. Channels 1 and 3 are 200-300 m thick and laterally extend over 1.1 km, and were initiated following two major falls of relative sea level. Detailed relationships between the intrachannel facies, architecture and geometry within both complex sets indicates that each comprises several vertically-stacked channel complexes that locally are separated by thin-bedded, mudstone-dominated turbidites interpreted to represent channel-abandonment deposits. Each channel complex consists of several channel units, which, in turn, are composed of multiple channel fills. Channel fills are up to 30 m thick and show different infill geometries (amalgamated, semi-amalgamated or layered, non-amalgamated and accretionary), exhibiting systematic lateral changes in fill from channel axis to channel margin. Multistory and multilateral fills in Channels 1 and 3 record a complex repetitive history of channel incision/bypass, aggradation, deactivation, migration and reincision. These erosional and depositional episodes are the result of changes in the equilibrium channel profile, flow parameters, and/or eustatic fluctuations.
title: Sordera en adulto joven: Otoesclerosis, manifestaciones radiológicas y recuerdo anatómico del oido medio.
Creators: name:  Martínez Gómez, Carlos
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Head and neck
subject: Ear / Nose / Throat
subject: CT
subject: MR

description: Objetivos
Material y método
Resultados
Conclusiones
description: Objetivos:
La otoesclerosis es una patología que afecta al 10% de la población,
asociando manifestación clínica en sólo el 10% de los afectados (1% de la población),
siendo la primera causa de sordera en adultos jóvenes (especialmente en mujeres). El...
The End of Medicare or Did Anything Even Change? Examining Discourses in the wake of Chaoulli v Quebec
Creators: name: Swanson, Drew J
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: subject: Political Science, General.
subject: Health Sciences, Health Care Management.

description: In the immediate aftermath of Chaoulli vs. Quebec (Attorney General), it seemed that this decision would constitute a turning point in the way public health care is delivered in Canada. However, the lack of change in the following years has left this theory largely suspect. This thesis sets out to establish how two separate, yet equally powerful reactions to this case, proliferated in the wake of this decision. It aims to validate an original hypothesis that suggests that the treatment of the case from academia and from the print media (Canadian daily newspapers) constituted the most dominant discourses in the wake of the Chaoulli case. Furthermore it examines whether these two sectors were predominantly homogenous in their views of the case. However, this thesis concludes that, while these were two of the most dominant reactions to the Chaoulli case, the boundaries of these discourses and their respective supporters were not relegated exclusively to any given sector.
title: TC coronario: Algo más que la arteriosclerosis coronaria.
Creators: name: Aragonés García, Maria
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Observer performance
subject: CT
subject: Cardiac

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
- Mostrar la utilidad en la práctica clínica del TC cardiaco para valorar patologías cardiacas diferentes a la ateroesclerosis coronaria. - Presentar otros hallazgos coronarios y cardiacos extracoronarios que podemos encontrar en estos...
title: Diagnóstico por Colonografia por TC (CTC) de las lesiones polipoides del cólon : impacto de los hallazgos en el manejo terapéutico
Creators: name:  Álvarez Devesa, Lucía
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Colon
subject: CT
subject: Colonography CT

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
1.-Revisar la semiología de las distintas lesiones polipoides que se presentan en la CTC. 2.-Conocer los algoritmos que nos ayudarán en el posterior manejo de las lesiones : Colonoscopia Óptica,
Cirugía ó seguimiento con...
A pilot project to evaluate patient preferences in osteoporosis.
Creators: name: Cranney, Anne B.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1998
Subjects: subject: Health Sciences, Medicine and Surgery.

description: The study objective was to develop and evaluate the psychometric properties of preference-based measures in osteoporosis. Preference scenarios were constructed for marker health states associated with osteoporosis using the feeling thermometer. The reliability, validity and sensitivity to change of these measures and the standard gamble were evaluated in 42 women from four different patient subgroups. The four subgroups of women included women commencing hormone replacement, and women with recent wrist, vertebral or hip fractures. The reason for looking at different groups of women was to establish the feasibility of eliciting preferences in women with varying degrees of osteoporosis. Also, for cost-effectiveness analyses in osteoporosis, estimates of quality of life are required for the four different subgroups. The validity and sensitivity to change of the feeling thermometer and standard gamble were compared with the Health Utilities Index (HUI) and SF-36. All subgroups were reassessed 2-3 months following their first interview. (Abstract shortened by UMI.)
Environmental assessment and management challenges of the Fildes Peninsula region
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2014

description: Since the inception of the Antarctic Treaty, numerous regulations for environmental protection were adopted by the Treaty parties to minimise negative environmental impacts of human activity. Nevertheless, the concentration of a variety of human activities in some Antarctic regions leads to a conflict of interest. The Fildes Peninsula on King George Island, in the Antarctic Peninsula, represents a unique example of increasing human pressure due to multiple human uses. Scientific research, station operations, transport logistics, tourism, nature conservation and protection of geological and historical values regularly overlap in space and time. A standardised assessment of fauna, flora and impact of human activities on the terrestrial ecosystem was conducted between 2003-2006 and 2008-2011 to provide a comprehensive dataset that documents the environmental state of the Fildes Peninsula. Management measures are suggested to mitigate these impacts, such as the designation of an Antarctic Specially Managed Area. The political debate amongst the Treaty parties about regulatory measures is on-going, but we strongly recommend immediate action.
Quelle: http://www.researchgate.net/
Dynamics of quantum discommensurations in the Frenkel-Kontorova chain
Creators: name: Chelpanova, Oksana
name: Kelly, Shane P.
name: Schmidt-Kaler, Ferdinand
name: Morigi, Giovanna
name: Marino, Jamir
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The ability for real-time control of topological defects can open up prospects for dynamical manipulation of macroscopic properties of solids. A sub-category of these defects, formed by particle dislocations, can be effectively described using the Frenkel-Kontorova chain, which characterizes the dynamics of these particles in a periodic lattice potential. This model is known to host solitons, which are the topological defects of the system and are linked to structural transitions in the chain. This work addresses three key questions: Firstly, we investigate how imperfections present in concrete implementations of the model affect the properties of topological defects. Secondly, we explore how solitons can be injected after the rapid change in lattice potential or nucleated due to quantum fluctuations. Finally, we analyze the propagation and scattering of solitons, examining the role of quantum fluctuations and imperfections in influencing these processes. Furthermore, we address the experimental implementation of the Frenkel-Kontorova model. Focusing on the trapped ion quantum simulator, we set the stage for controllable dynamics of topological excitations and their observation in this platform.
description: 18+1 pages, 15 figures; an extension of our previous work arXiv:2210.14904
Supplementary document for Microwave-to-optical conversion using lithium niobate thin-film acoustic resonators - 4146202.pdf
Creators: name: Shao, Linbo
name: Yu, Mengjie
name: Maity, Smarak
name: Sinclair, Neil
name: Zheng, Lu
name: Chia, Cleaven
name: Shams-Ansari, Amirhassan
name: Wang, Cheng
name: Zhang, Mian
name: LAI, KEJI
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Photonics, Optoelectronics and Optical Communications

description: Supplemental document
Investigating the Impacts of LSTM-Transformer on Classification Performance of Speech Emotion Recognition
Creators: name: Andayani, Felicia
Publisher: name: Swinburne
Year: 2024

description: Speech Emotion Recognition (SER) is a task of recognizing emotions by learning the features extracted from speech signals. This research focuses on designing and developing an LSTM-Transformer hybrid model for the SER system to learn the long-term dependencies in speech signals as well as investigating its impacts on the classification performance of SER. The resulting recognition accuracy showed that the LSTM-Transformer hybrid model could learn the temporal information from the frequency distributions according to the Mel-Frequency Cepstral Coefficients (MFCCs) of each emotion on language-independent and language-dependent datasets.
The role of global trade agreements in global food supply chain and food security
Creators: name: Shaker Ardakani, Elham
Publisher: name: University of British Columbia
Year: 2025

description: Global trade agreements (GTAs) have transformed global food supply chains (GFSCs) by facilitating the international flow of food products and reducing barriers such as tariffs and quotas. However, uncertainties in GTAs lead to several challenges, including panic buying and fluctuating demand, transportation delays, expiration of perishable food products, and increased operational costs, all of which threaten the stability and resilience of food supply chains (FSCs). For instance, the termination of the North American Free Trade Agreement (NAFTA) can result in tariff increases of up to 150% in some products, leading to significant cost surges in cross-border food trade and disrupting supply continuity (Swanson & Granville, 2017). This study investigates the impact of such disruptions and the subsequent effects of panic buying on GFSCs and food security. To address the uncertainty in demand, this research develops a two-stage stochastic programming model to optimize a global multi-product FSC during disruptions, aiming to enhance profitability and resilience. Various products with different shelf lives and transportation modes are incorporated into the model to meet logistical requirements. The model integrates supply and distribution decision-making and considers multiple disruption scenarios. The Monte Carlo simulation is employed to simulate the demand parameter by generating a large number of scenarios based on historical data. The K-means clustering method is then applied to reduce the number of generated scenarios. Moreover, the sample average approximation method is employed to mitigate the large-scale nature of the problem and reduce the computational time. A real-world case study demonstrates the model’s applicability, particularly highlighting the impact of a potential NAFTA termination on the FSC between Canada and the United States. The results demonstrate that terminating NAFTA can reduce profit by up to 41.67% due to unmet demand, leading to food shortages first in Canada and then in the United States, with some products being less resilient than others. Finally, the numerical experiments confirm the model’s effectiveness across various problem sizes.
Establishing the denominator : The challenges of measuring multiracial, Hispanic, and Native American populations
Creators: name: Roth, Wendy D.
Publisher: name: The University of British Columbia
Year: 2018

description: The norms for how multiracial, Hispanic, and Native American populations self-identify are less well established than for other population groups in the United States. There is considerable variation and fluidity in how these groups identify their race and ethnicity, as well as how they are classified by others. This presents challenges for estimating and analyzing these populations based on their self-identification alone. I argue that self-identification should be treated as a numerator, but the challenge is for researchers to establish the denominator – the population that could identify as members of the group based on their ancestry. Considering how many people who could identify with these groups choose to do so sheds light on assimilation and emerging racial classification processes. Analyses of the larger potential populations further avoid bias stemming from non-random patterns of self-identification with the groups.
Heterocorixa boliviensis Hungerford 1928
Creators: name: Santos, Suzane Evaristo Dos
name: Barbosa, Julianna Freires
name: Moreira, Felipe Ferraz Figueiredo
name: Couceiro, Sheyla Regina Marques
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Corixidae
Heterocorixa
Heterocorixa boliviensis

description: Heterocorixa boliviensis Hungerford, 1928
(Fig. 11A–C)
Heterocorixa boliviensis Hungerford, 1928: 100 (original description)
Distribution. Bolivia (Hungerford 1928). Brazil: Amazonas, Pará. Ecuador. Peru (Hungerford 1948). Distribution in Pará. Belém (Hungerford 1948).
description: Published as part of Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo & Couceiro, Sheyla Regina Marques, 2025, Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state, pp. 275-304 in Zootaxa 5627 (2) on page 277, DOI: 10.11646/zootaxa.5627.2.3, http://zenodo.org/record/15325988
Contributions to the theory of product-limit estimators.
Creators: name: Moher, Michael L.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1989
Subjects: subject: Mathematics.

description: The product-limit estimator is shown to be a strongly uniformly consistent estimator of the distribution function of a renewal process which started long before the commencement of observation. This product-limit estimator is based on the censored data obtained from independent realizations of such a process in one of two scenarios: one observation per renewal process, and multiple observations per renewal process. In the former scenario a lower bound on the rate of convergence is obtained.
German dentists’ websites on periodontitis have low quality of information
Creators: name: Schwendicke, Falk
name: Stange, Jörg
name: Stange, Claudia
name: Graetz, Christian
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2017
Subjects: subject: Decision making
subject: Evidence-based dentistry
subject: Health services research
subject: Internet
subject: Periodontitis
subject: Public health
subject: Shared decision making
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: Background The internet is an increasingly relevant source of health information. We aimed to assess the quality of German dentists’ websites on periodontitis, hypothesizing that it was significantly associated with a number of practice-specific parameters. Methods We searched four electronic search engines and included pages which were freely accessible, posted by a dental practice in Germany, and mentioned periodontal disease/therapy. Websites were assessed for (1) technical and functional aspects, (2) generic quality and risk of bias, (3) disease-specific information. For 1 and 2, validated tools (LIDA/DISCERN) were used for assessment. For 3, we developed a criterion catalogue encompassing items on etiologic and prognostic factors for periodontitis, the diagnostic and treatment process, and the generic chance of tooth retention in periodontitis patients. Inter- and intra-rater reliabilities were largely moderate. Generalized linear modeling was used to assess the association between the information quality (measured as % of maximally available scores) and practice-specific characteristics. Results Seventy-one websites were included. Technical and functional aspects were reported in significantly higher quality (median: 71%, 25/75th percentiles: 67/79%) than all other aspects (p < 0.05). Generic risk of bias and most disease-specific aspects showed significantly lower reporting quality (median range was 0–40%), with poorest reporting for prognostic factors (9;0/27%), diagnostic process (0;0/33%) and chances of tooth retention (0;0/2%). We found none of the practice-specific parameters to have significant impact on the overall quality of the websites. Conclusions Most German dentists’ websites on periodontitis are not fully trustworthy and relevant information are not or insufficiently considered. There is great need to improve the information quality from such websites at least with regards to periodontitis.
Supplementary document for Microwave-to-optical conversion using lithium niobate thin-film acoustic resonators - 4146202.pdf
Creators: name: Shao, Linbo
name: Yu, Mengjie
name: Maity, Smarak
name: Sinclair, Neil
name: Zheng, Lu
name: Chia, Cleaven
name: Shams-Ansari, Amirhassan
name: Wang, Cheng
name: Zhang, Mian
name: LAI, KEJI
Publisher: name: Optica Publishing Group
Year: 2019
Subjects: Photonics, Optoelectronics and Optical Communications

description: Supplemental document
Charged gravastar model in Rastall theory of gravity
Creators: name: Bhattacharjee, Debadri
name: Chattopadhyay, Pradip Kumar
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravastars are considered as one of the prime exotic type compact objects which may be found at the end state of gravitational collapse of massive stars with a view to resolve the complexities that are pertinent in case of a black hole \cite{Mazur}-\cite{Mazur2}. In this paper, we analyse the role of charge on the possible formation of isotropic spherically symmetric gravastar configuration in the framework of Rastall gravity. Gravastar contains three distinct layers {\it viz.} i) Interior region, ii) Thin shell and iii) Exterior region. The interior region is characterised by the equation of state $p=-ρ$ that defines the repulsive outward pressure in radial direction at all points on the thin shell. The thin shell, contains ultra-relativistic stiff fluid which is denoted by the equation of state $p=ρ$ following Zel'dovich's criteria \cite{Zeldovich,Zeldovich1} for cold baryonic universe, can withstand the repulsive pressure exerted by the interior region. The exterior region is the vacuum space-time represented by the Reissner-Nordstr$\ddot{o}$m solution. In view of the above specifications, we construct and analyse a charged gravastar model in Rastall theory of gravity which represents several salient features. The basic physical attributes, {\it viz.} proper length, energy, entropy and equation of state parameter of the shell are investigated. In this model, it is interesting to note that for large value of the radius of hyper-surface (R) the EoS parameter of the thin shell corresponds to dark energy EoS with $\mathcal{W}(R)\rightarrow-1$. However, for small value of $R$ the EoS parameter $\mathcal{W}(R)\rightarrow0$, defines a dust shell. The stability of the model is ensured through the study of gravitational surface redshift and maximisation of shell entropy within the framework of Rastall theory of gravity.
description: 21 pages, 5 figures
Erneuerbare Energien in Deutschland
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2018
Subjects: subject: erneuerbarer Energien
subject: Arbeitsgruppe Erneuerbare Energien-Statistik
subject: AGEE-Stat
subject: Klima | Energie

description: Die Arbeitsgruppe Erneuerbare Energien-Statistik (AGEE-Stat), die im Auftrag des Bundesministeriums für Wirtschaft und Energie regelmäßig die Nutzung der erneuerbaren Energien bilanziert, hat auf der Grundlage verfügbarer, zumeist vorläufiger Daten eine erste Abschätzung zur Entwicklung der erneuerbaren Energien in Deutschland im Jahr 2017 erstellt. Das vorliegende Hintergrundpapier beschreibt die bisherigen Erkenntnisse für die Bereiche Strom, Wärme und Verkehr, ergänzt um Zahlen zur wirtschaftlichen Bedeutung sowie zur Emissionsvermeidung durch erneuerbare Energien.