cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Improving Synthetically Generated Image Detection in Cross-Concept Settings
Creators: name: Dogoulis, Pantelis
name: Kordopatis-Zilos, Giorgos
name: Kompatsiaris, Ioannis
name: Papadopoulos, Symeon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: New advancements for the detection of synthetic images are critical for fighting disinformation, as the capabilities of generative AI models continuously evolve and can lead to hyper-realistic synthetic imagery at unprecedented scale and speed. In this paper, we focus on the challenge of generalizing across different concept classes, e.g., when training a detector on human faces and testing on synthetic animal images - highlighting the ineffectiveness of existing approaches that randomly sample generated images to train their models. By contrast, we propose an approach based on the premise that the robustness of the detector can be enhanced by training it on realistic synthetic images that are selected based on their quality scores according to a probabilistic quality estimation model. We demonstrate the effectiveness of the proposed approach by conducting experiments with generated images from two seminal architectures, StyleGAN2 and Latent Diffusion, and using three different concepts for each, so as to measure the cross-concept generalization ability. Our results show that our quality-based sampling method leads to higher detection performance for nearly all concepts, improving the overall effectiveness of the synthetic image detectors.
A Narrative Inquiry Exploring All-Terrain Vehicle Injury Survivors' Experiences
Creators: name: Grossi, Marissa
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: nursing
subject: narrative inquiry
subject: all-terrain vehicle
subject: Nursing
subject: FOS: Health sciences

description: All-terrain vehicle (ATV) use in Canada, has led to significant morbidity and mortality. Children under 18 years old are more prone to ATV injuries. Despite the increasing number of ATV-related injuries and fatalities, there has been limited research about ATV use conducted in Alberta. There is limited academic knowledge about ATV riding behavior. There have been no known qualitative studies that have researched the experiences of ATV injury survivors. Given the unique nature of ATVs as a recreation vehicle and as farming equipment, the increasing rate and severity of injuries, and the perceived lack of protective equipment used while operating an ATV, it is important to research and understand the experiences of people who have sustained ATV injuries during childhood. The purpose of this narrative inquiry was to understand the experiences of emerging adult ATV injury survivors (ages 18 to 29 years old), who sustained childhood ATV-related injuries, and how their experiences with injury survival shaped their self-identity. Clandinin and Connelly’s (2000) form of narrative inquiry methodology was used to explore the experiences of two emerging adults who had childhood ATV-related injuries. Data was generated through field texts which included in-depth conversational interviews with each participant and field journal writing. This study yielded in-depth narratives which described ATV experience as being strongly anchored within the social spaces of family and community. Two narrative threads that resonated across narrative accounts include: ATV use as a shared experience, and stories to live by (narrative forms of identity) - how ATV-related injury shapes emerging adults over time. This thesis concludes with a discussion of the personal, social, and practical significance of this work, with implications for nursing practice, social policy, health education, and future research.
Stable self-similar blow up for energy subcritical wave equations
Creators: name: Donninger, Roland
name: Schörkhuber, Birgit
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider the semilinear wave equation \[ \partial_t^2 ψ-Δψ=|ψ|^{p-1}ψ\] for $10$ and $κ_p$ is a $p$-dependent constant. We prove that the blow up described by $ψ^T$ is stable against small perturbations in the energy topology. This complements previous results by Merle and Zaag. The method of proof is quite robust and can be applied to other self-similar blow up problems as well, even in the energy supercritical case.
description: some typos fixed
A Mesocosm Study of Bioretention Functionality Under Frozen Conditions
Creators: name: Elliot, Sean
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Hydrogeology
subject: Bioretention
subject: Low Impact Development
subject: Stormwater
subject: Frozen Soil
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Hydrology

description: Urbanization interrupts the natural hydrologic cycle through the development of large impervious areas that prevent infiltration and introduce contaminants to stormwater. Bioretention is a green stormwater management strategy designed to restore natural hydrologic conditions in urban areas by promoting infiltration and removing contaminants at the source. Bioretention technology has proven to be effective in warm climates, but questions remain regarding how the systems perform in cold climates. This study investigated how bioretention systems function under frozen conditions using 24 mesocosm cells in Okotoks, Alberta. The mesocosm cells were lined and had three types of media, three types of vegetation, and two different impervious to pervious ratios. Media types included two typical bioretention media as well as an experimental mixture of clay loam and woodchips. Simulated spring melt events were conducted at the end of March 2021 and March 2022, with an additional event included at the beginning of March 2022 to observe the influence of midwinter melts on bioretention performance. Datasets were analyzed to compare frozen performance among the different design parameters and simulated events, and were also compared to unfrozen conditions using existing datasets from a separate study conducted at the site. The results of this study showed an average 80% decrease in infiltration rate under frozen conditions relative to unfrozen, with significant difference in infiltration rate depending on media type. The findings show that hydrologic performance is largely based on media type, and more specifically, the ability of the media to support preferential flow under frozen conditions. Preferential flow also limited the effects of refreezing midwinter meltwater, as no significant difference in infiltration rate was seen following the midwinter melt event. Nutrient performance was comparable between frozen and unfrozen conditions, with most cells leaching relatively low concentrations of nutrients. Nutrient removal was largely dependent on media type, but plant nutrient uptake also appeared to play an important role. Overall, the results of this study showed that bioretention systems function well under frozen conditions, but the reduced infiltration rates and effects of preferential flow must be taken into consideration when designing the systems.
An Examination of Policies and Practices within Western Canadian Research-Intensive Universities that Support Students with Family Responsibilities
Creators: name: Usick, Brandy L.
Publisher: name: Werklund School of Education
Year: 2023
Subjects: subject: student parents
subject: student caregivers
subject: family responsibilities
subject: research-intensive
subject: qualitative research
subject: policy
subject: student supports
subject: COVID-19
subject: post-secondary
subject: higher education
subject: university
subject: Canada
subject: Education--Higher
subject: Education--Administration

description: Canadian universities have an obligation to provide accommodation based on family status; however, few have services and policies in place, and little direction is provided by provincial and federal human rights legislation. Although students with family responsibilities are an underserved population on university campuses, the global pandemic has helped thrust caregiving into the spotlight. The specific needs and experiences of post-secondary students with family responsibilities are a neglected area within the Canadian literature. Addressing the needs of this student group is an important leadership issue because it touches on many facets of institutional priorities, including student recruitment and retention; success strategies; equity, diversity, inclusion, and decolonization initiatives; and supports for specific populations. There are also implications for policies related to academic concessions or accommodations. The purpose of this qualitative study was to explore how research-intensive universities in western Canada are contemplating students with family responsibilities as a policy issue and as a priority population for services and programs. The research question was, how do research-intensive universities in western Canada support students with family responsibilities through their respective policies, services, and programs? Five secondary questions were related to (1) human rights legislation and accommodation; (2) formal policies, regulations, and governing documents; (3) student services and supports; (4) leaders’ perception of their institutions’ supports; and (5) promising practices. Supporting the research design was the extant literature and policy theory. Four themes were identified from the literature: access and success, students with family responsibilities, human rights, and leadership, all of which served as conceptual lenses. Four policy dimensions: normative, structural, constituentive, and technical (Cooper et al., 2004) served as the theoretical framework. Using a qualitative research design, I investigated how five universities support students with family responsibilities. Data sources included publicly available institutional documents (n=267) and interviews with leaders (n=5) within student affairs. The findings led to the proposal of the flower petal model of supporting students with family responsibilities, from which seven main findings contributed to 18 recommendations. Implications and promising practices in the areas of accommodation policies, student services, and programming are shared.
Perfusion SPECT guided dose escalation in radiation therapy for lung cancer patients
Creators: name: Yin, Lingshu
Publisher: name: University of British Columbia
Year: 2012

description: Radiation therapy (RT) is a standard of care for patients with locally advanced inoperable non-small cell lung cancer (NSCLC). Prognosis for these patients is poor with 2-years survival below 20%. A substantial proportion of the lung cancer patients receiving RT develop symptomatic radiation pneumonitis (RP) as radiationinduced side effects. Thus, sparing of normal lung is one of the important goals for lung cancer patients receiving RT. Currently in clinical practice, the sparing of lung is assessed based on the dosevolume histogram (DVH) assuming homogeneous lung function which is clearly not valid. Lung perfusion scan using Single Photon Emission Computed Tomography (SPECT) with ⁹⁹mTc macroaggregated albumin (⁹⁹mTc-MAA) provides unique functional information (lung perfusion i.e. blood flow) about the lung and holds the potential to improve normal tissue sparing in RT. Incorporating functional information from perfusion SPECT scan into RT treatment planning allows for identifying and sparing the well perfused parts of lung, thus reducing the risk of clinically significant radiation-induced lung complications. From February 2008 to May 2011, 22 lung cancer patients in BC Cancer Agency were recruited into this ethics board approved SPECT study. The goal of this study is to establish a framework for SPECT-guided RT treatment planning and dose escalation trials. In this study, the incorporation of SPECT into RT treatment planning is carried out in a sequential manner including: 1. Reconstruction of SPECT images and investigating the metric of functional sparing for treatment planning 2. Evaluation of SPECT image registration algorithms 3. Developing the methodology of SPECT-guided intensity modulated radiation therapy (IMRT) treatment planning with a Monte Carlo based beamlets dose calculation 4. Evaluation of the effectiveness of SPECT-guided RT through a planning study comparing DVH and SPECT-driven IMRT plans. In conclusion, comparing to conventional DVH driven IMRT plans, we found that SPECT-driven IMRT plans provide better sparing of both lung function and volume. Mean lung dose and SPECT-weighted mean dose can be reduced by 10.8% and 13.1%, respectively. We suggest that the use of SPECT guided IMRT treatment planning improves the sparing of lung functionality and makes possible dose escalations in patients with non-small cell lung cancers.
Absolutely continuous spectrum for multi-type Galton Watson trees
Creators: name: Keller, Matthias
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider multi-type Galton Watson trees that are close to a tree of finite cone type in distribution. Moreover, we impose that each vertex has at least one forward neighbor. Then, we show that the spectrum of the Laplace operator exhibits almost surely a purely absolutely continuous component which is included in the absolutely continuous spectrum of the tree of finite cone type.
description: to appear in Annales Henri Poincar\'e
FOR ALL THE BEAUTIFUL SHADES OF YOU: how race, gender, and embodiment shape the retail beauty work
Creators: name: Borzoo, Sepideh
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Beauty Industry
subject: Racialization
subject: Gender and Embodiment
subject: Work and Organization
subject: Entrepreneurship
subject: Education--Sociology of

description: In my dissertation, I examine various forms of subordination as well as resistance along the multiple axes of identities experienced by marginalized women of colour in the beauty industry. I specifically focus on how employees navigate their positions in the retail division of cosmetic industry, both in large chain stores owned by white men and in small entrepreneurial companies owned by women of colour. Using qualitative methods —in-depth-interviews with 30 women working in the beauty stores, and discourse analysis of the social media content produced by my focal companies, I show how gender and race act as organizing structure of women’s work experiences in the business of beauty in conjunction with sexualities and immigration status. In the big box stores, the gendered and racialized processes in organizations shape and reconfigure the subjectivities of their employees. I underscore that in these stores, women employees’ personhoods, including their embodied and emotional qualities, are governed and reconstructed under, direct and indirect, organizational control. Gender discourses are activated in this feminized occupation through specific organizational policies as well as the intangible organizational culture recreated through customer-employee interactions. Bringing sexuality and class on the same level of analysis as gender, I show how hierarchy, not only between women and (gay) men, but among women with various immigration statuses, is legitimized within the aesthetic economy. Focusing on beauty companies run by Indigenous, Black, white, and immigrant women of colour entrepreneurs, I show how deploying marginal positionalities under conditions of immigration status, gender, and race marginalization serve not only to redefine these women’s identities as empowered, but also to decenter masculinity and whiteness in organizational culture through their leadership style. Located in the Canadian context, my research shows how women’s work within the business of beauty traverses across intersectional experiences of Indigenous, Black, white, and immigrant women of colour.
Investigating the Effect of Inflammation Induced by Bacterial Lipopolysaccharide on Cerebral Blood Flow and Brain Oxygenation
Creators: name: Shafqat, Qandeel
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Neuroscience

description: Brain hypoxia is a pathological feature of various neurodegenerative diseases. Over 40% of people with multiple sclerosis (MS), an inflammatory disease of the central nervous system, experience brain hypoxia. It is proposed that hypoxia and inflammation are linked, where inflammation can cause hypoxia and hypoxia can then further contribute to inflammation, leading to a vicious cycle of damage. Given that hypoxia is present in MS, and in other neurological conditions, further research on putative mechanisms for its cause are needed. To better understand the hypoxia-inflammation cycle, we sought to determine whether systemic inflammation induces brain hypoxia and/or alterations in cerebral hemodynamics using non-invasive magnetic resonance imaging (MRI) techniques. We found that inflammation in a mouse model causes significant reductions in cerebral blood blow and an increase in brain R2* (an MRI marker of increased deoxyhemoglobin) in the cortex and hippocampus. We also discovered that LPS challenge causes significant changes in hippocampal oxygenation, with hypoxia occurring in all animals assessed, and hyperoxia occurring in 57% of the animals. Our findings suggest that inflammation may impair cerebrovascular regulation in the brain and contribute to brain hypoxia.
Additional file 2 of Regulatory T lymphocytes/Th17 lymphocytes imbalance in autism spectrum disorders: evidence from a meta-analysis
Creators: name: Ellul, Pierre
name: Rosenzwajg, Michelle
name: Peyre, Hugo
name: Fourcade, Gwladys
name: Mariotti-Ferrandiz, Encarnita
name: Trebossen, Vincent
name: Klatzmann, David
name: Delorme, Richard
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Characteristics of CD4+ T lymphocytes studies.
Croton echinocarpus Mull. Arg.
Creators: name: Maia, Valéria Cid
name: Mascarenhas, Bernardo
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Croton
Croton echinocarpus

description: Croton echinocarpus Müll. Arg. (n = 1)
 Gall: on stem, fusiform, brown, with short trichomes, one-chambered (Fig. 8K). Gall-inducer: not determined. Trails: Teresópolis: Primavera (13.IX.2021), Barragem to Cachoeira de Papel entrance (14.IX.2021), Centro de OperaÇÕes (28.III.2022).
First record of gall on this plant species.
 Many authors reported galls on other congeneric species and morphospecies as Almada & Fernandes (2011) in AM, Marinho et al. (2023) in RN, CE and PB, Urso-Guimarães et al. (2017) in MS, Vieira et al. (2018) in BA, Carneiro et al. (2009), Maia & Fernandes (2004), Malves & Frieiro-Costa (2012) in MG, Carvalho-Fernandes et al. (2016) in RJ, Maia & Mascarenhas (2017) in the Parque Nacional do Itatiaia, Ribeiro et al. (2019) and Urso-Guimarães et al. (2003) in SP.
description: Published as part of Maia, Valéria Cid & Mascarenhas, Bernardo, 2023, Insect galls of Parque Nacional da Serra dos Órgãos (Rio de Janeiro State, Southeastern Brazil), pp. 1-56 in Papéis Avulsos de Zoologia 63 on page 19, DOI: 10.11606/1807-0205/2023.63.040, http://zenodo.org/record/10270483
Photothermal Catalytic Hydrogen Production over Hierarchical Porous Calcium Titanate with Plasmonic Gold Nanoparticles
Creators: name: Yu, Xinti
Publisher: name: Schulich School of Engineering
Year: 2023
Subjects: subject: Hydrogen production
subject: Photothermal catalysis
subject: 3DOM CaTiO3
subject: Plasmonic gold nanoparticles
subject: Engineering--Chemical

description: Solar-driven hydrogen production is the promising alternative for addressing the current issues from the fossil fuel depletion and environment pollution. By using the solar energy as the driven force, the photocatalysts could be activated to generate active electrons for the hydrogen production from water while the photogenerated holes could oxide water or substrates to produce oxygen or value-added chemicals. Although photocatalytic water splitting could maximize the utilization of photogenerated electrons and holes, and not bring any byproducts, the extremely low efficiency greatly limits its application. Therefore, the photocatalytic hydrogen production in presence of additives as the electron donors has been extensively developed. The overall efficiency for the hydrogen production could be further improved by coupling photocatalysis with other technologies. The synergistic promotion by photocatalysis and thermocatalysis is a promising approach for sustainable hydrogen (H2) production. Herein, we rationally design a perovskite-based catalyst with three dimensionally ordered macroporous structure (3DOM CaTiO3-Au) for photothermal catalytic H2 production from different substrates. The hierarchical 3DOM structure facilitates light harvesting and mass diffusion of the substrates while the gold nanoparticles (Au NPs) promote the charge separation. The photogenerated and hot electrons are oriented accumulated on the surface of Au NPs. The non-metallic gold species (Au(I)) show more active for H2 evolution. As a result, 3DOM CaTiO3-Au exhibits excellent activity for H2 production from glycerol and other substrates with hydroxyl group. This present work demonstrates a feasible approach to improve the sustainable H2 production by rationally designing and fabricating efficient photothermal catalysts.
Transcoding and Quality Enhancement for Real-time 360° Video Streaming
Creators: name: Keshava Murthy Naik, Sonali
Publisher: name: Science
Year: 2023
Subjects: subject: Video Streaming
subject: DASH
subject: 360-degree video
subject: Kubernetes
subject: Computer Science

description: The demand for 360° video streaming has been growing at a phenomenal rate due to the emergence of virtual and mixed reality (VR/MR). The interactive nature of VR/MR poses real-time challenges for 360° video transcoding and streaming. In this thesis, we tackle two challenges. Firstly, we proposed a novel distributed transcoding scheme to speed up the transcoding time in a resource-efficient manner, by exploring transcoding parallelization and orchestration of Docker containers. The goal is to push for real-time production of 360° videos in higher quality. Real-time transcoding opens the opportunity for dynamically adjusting the transcoding setting for the best visual quality subject to bandwidth limit and client-side status, instead of a fixed set of quality levels throughout a streaming session. Secondly, we exploited this opportunity and proposed a new adaptive streaming algorithm that directs the transcoding to produce the transcoding segment that best suits the current streaming condition. Our analysis and evaluation show that the new adaptive algorithms lead to higher visual quality by balancing the bandwidth requirements across different regions of a segment during a streaming session in comparison to the conventional adaptive streaming algorithm.
2.2  IRISS Milestone_WP2. Technical report 1-Longitudinal inconsistencies in categorical Census data
Creators: name: KUBLER, Matthias
name: Zajac, Tomasz
name: Tomaszewski, Wojtek
Publisher: name: Zenodo
Year: 2022

description: 2.2 IRISS Milestone_WP2. Technical report 1-Longitudinal inconsistencies in categorical Census data
Correlation-driven chiral superconductivity and chiral spin order in doped kagome lattice
Creators: name: Yu, Shun-Li
name: Li, Jian-Xin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the electronic instabilities of the Hubbard model in the 1/6 hole-doped Kagome lattice using the variational cluster approach. The 1/6 hole doping is unique in the sense that the Fermi level is at the von Hove singularity and the Fermi surface has a perfect nesting. In this case, a density wave is usually realized. However, we demonstrate here that the chiral $d_{x^{2}-y^{2}}+id_{xy}$ superconducting state is most favorable when a small Hubbard interaction U(U<3.0t) is introduced, and a scalar chiral spin order is realized at large U(U>5.0t). Between them, a spin-disordered insulating state is proposed.
description: 5 pages, 4 figures
Review of the book The rise of AI: Implications and applications of artificial intelligence in academic libraries, edited by Sandy Hervieux and Amanda Wheatley
Creators: name: Lenart, Bartlomiej Andrzej
Publisher: name: Canadian Association of Professional Academic Librarians
Year: 2023
Subjects: Artificial intelligence
AI
Book Review

description: Review of the book The rise of AI: Implications and applications of artificial intelligence in academic libraries, edited by Sandy Hervieux and Amanda Wheatley.
Geometric Heat Flux for Classical Thermal Transport in Interacting Open Systems
Creators: name: Ren, Jie
name: Liu, Sha
name: Li, Baowen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study classical heat conduction in a dissipative open system composed of interacting oscillators. By exactly solving a twisted Fokker-Planck equation which describes the full counting statistics of heat flux flowing through the system, we identify the geometric-phase-like effect and examine its impact on the classical heat transport. Particularly, we find that the nonlinear interaction as well as the closely related temperature-dependence of system-parameters are crucial in manifesting the geometric-phase contribution of heat flux. Finally, we propose an electronic experiment based on RC circuits to verify our theoretical predictions.
description: 4+ pages, 3 figures, supplement included, accepted by PRL
Design evolution of engineering systems using bond graphs and genetic programming
Creators: name: Samarakoon Mudiyanselage, Buddhika
Publisher: name: University of British Columbia
Year: 2012

description: Engineering design is a complex task, which typically involves multiple physical domains. It can benefit from a modeling tool that can represent different domains in a unified manner. For complex designs, optimization by traditional techniques (such as gradient-based methods) may not be appropriate. Evolutionary methodologies may be used in design optimization of complex engineering systems. This research is based on a framework for evolutionary design system consisting of a machine health monitoring system, model-based evolutionary design optimization system, and a design expert system. The design weaknesses and faults of an existing engineering system are identified using a machine health monitoring system. Then under supervision of the design expert system, an optimal design is evolved using genetic programming. This thesis primarily addresses the modeling and evolutionary aspects and their integration. The thesis develops the integrated system consisting of bond-graph modeling and genetic programming. The performance of the developed system is studied using both experimentation and simulation. The drawbacks of the fitness calculation methodologies that are presented in literature are identified and improved fitness functions are developed in the present work. A methodology to automatically obtain the state-space model of a system represented using bond graphs is also developed. While previous researchers have investigated the integration of bond graphs and genetic programming in design, they have not applied the method in a real engineering system. The present work specifically addresses the application of the developed method for design improvement for an industrial machine. For this purpose a linear bond graph model of the industrial fish processing machine is developed and the parameter values are identified using genetic programming. The design of the actual system is modified according to the evolved bond graph model and the results are validated using the data from the actual engineering system. The proposed method is applicable particularly to actual systems, first because the initial model can be tested by comparing its simulated results with the corresponding results from the actual system, and second because the design improvements as suggested by the evolutionary design framework may be implemented and tested against the behaviour of the corresponding model.
Condensation of Excitons in Cu2O at Ultracold Temperatures: Experiment and Theory
Creators: name: Stolz, Heinrich
name: Schwartz, Rico
name: Kieseling, Frank
name: Som, Sunipa
name: Kaupsch, Maria
name: Sobkowiak, Siegfried
name: Semkat, Dirk
name: Naka, Nobuko
name: Koch, Thomas
name: Fehske, Holger
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present experiments on the luminescence of excitons confined in a potential trap at milli-Kelvin bath temperatures under cw-excitation. They reveal several distinct features like a kink in the dependence of the total integrated luminescence intensity on excitation laser power and a bimodal distribution of the spatially resolved luminescence. Furthermore, we discuss the present state of the theoretical description of Bose-Einstein condensation of excitons with respect to signatures of a condensate in the luminescence. The comparison of the experimental data with theoretical results with respect to the spatially resolved as well as the integrated luminescence intensity shows the necessity of taking into account a Bose-Einstein condensed excitonic phase in order to understand the behaviour of the trapped excitons.
description: 41 pages, 23 figures
Copaifera trapezifolia Hayne
Creators: name: Maia, Valéria Cid
name: Mascarenhas, Bernardo
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Copaifera
Copaifera trapezifolia

description: Copaifera trapezifolia Hayne (n = 2)
 Gall: on leaf, lenticular, brown, glabrous, multichambered (Fig. 9C). Gall-inducer: not determined. Trail: Guapimirim: Mãe d′Água (29.III.2022).
 Gall: on bud, conical, green, glabrous, one-chambered (Fig.9D). Gall-inducer: Cecidomyiidae. Trail: Guapimirim: Mãe d′Água (29.III.2022).
First record of gall on this plant species.
description: Published as part of Maia, Valéria Cid & Mascarenhas, Bernardo, 2023, Insect galls of Parque Nacional da Serra dos Órgãos (Rio de Janeiro State, Southeastern Brazil), pp. 1-56 in Papéis Avulsos de Zoologia 63 on page 21, DOI: 10.11606/1807-0205/2023.63.040, http://zenodo.org/record/10270483
Quality-Diversity Optimisation on a Physical Robot Through Dynamics-Aware and Reset-Free Learning
Creators: name: Smith, Simón C.
name: Lim, Bryan
name: Janmohamed, Hannah
name: Cully, Antoine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Learning algorithms, like Quality-Diversity (QD), can be used to acquire repertoires of diverse robotics skills. This learning is commonly done via computer simulation due to the large number of evaluations required. However, training in a virtual environment generates a gap between simulation and reality. Here, we build upon the Reset-Free QD (RF-QD) algorithm to learn controllers directly on a physical robot. This method uses a dynamics model, learned from interactions between the robot and the environment, to predict the robot's behaviour and improve sample efficiency. A behaviour selection policy filters out uninteresting or unsafe policies predicted by the model. RF-QD also includes a recovery policy that returns the robot to a safe zone when it has walked outside of it, allowing continuous learning. We demonstrate that our method enables a physical quadruped robot to learn a repertoire of behaviours in two hours without human supervision. We successfully test the solution repertoire using a maze navigation task. Finally, we compare our approach to the MAP-Elites algorithm. We show that dynamics awareness and a recovery policy are required for training on a physical robot for optimal archive generation. Video available at https://youtu.be/BgGNvIsRh7Q
description: 5 pages, 2 figures, 1 linked video, to be presented as a poster at the Genetic and Evolutionary Computation Conference Companion (GECCO 2023 Companion), July, 2023, Lisbon, Portugal
Molecular Mechanisms of Muscle Contraction: A Historical Perspective
Creators: name: Herzog, Walter
name: Schappacher-Tilp, Gudrun
Publisher: name: Elsevier
Year: 2023
Subjects: Skeletal muscle
titin
actin
myosin
residual force enhancement
passive force enhancement
residual 7 force depression
theories of contraction
mathematical models of contraction

description: Studies of muscle structure and function can be traced to at least 2,000 years ago. However, the modern era of muscle contraction mechanisms started in the 1950s with the classic works by AF Huxley and HE Huxley, both born in the United Kingdom, but not related and working independently. HE Huxley was the first to suggest that muscle contraction occurred through the sliding of two sets of filamentous structures (actin or thin filaments and myosin or thick filaments). AF Huxley then developed a biologically inspired mathematical model suggesting a possible molecular mechanism of how this sliding of actin and myosin might take place. This model then evolved from a two-state to a multi-state model of myosin-actin interactions, and from one that suggested a linear motor causing the sliding to a rotating motor. This model, the cross-bridge model of muscle contraction, is still widely used in biomechanics, and even the more sophisticated cross-bridge models of today still contain many of the features originally proposed by AF Huxley. In 2002, we discovered a hitherto unknown property of muscle contraction that suggested the involvement of passive structures in active force production, the so-called passive force enhancement. It was quickly revealed that this passive force enhancement was caused by the filamentous protein titin, and the three-filament (actin, myosin, and titin) sarcomere model of muscle contraction evolved. There are many suggestions of how these three proteins interact to cause contraction and produce active force, and one such suggestion is described here, but the molecular details of this proposed mechanism still need careful evaluation.
Time scales in the dynamics of an interacting quantum dot
Creators: name: Contreras-Pulido, L. Debora
name: Splettstoesser, Janine
name: Governale, Michele
name: König, Jürgen
name: Büttiker, Markus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the dynamics of a single-level quantum dot with Coulomb interaction, weakly tunnel coupled to an electronic reservoir, after it has been brought out of equilibrium, e.g. by a step-pulse potential. We investigate the exponential decay towards the equilibrium state, which is governed by three time scales. In addition to the charge and spin relaxation time there is a third time scale which is independent of the level position and the Coulomb interaction. This time scale emerges in the time evolution of physical quantities sensitive to two-particle processes.
description: Version accpeted in PRB
CHARACTERISTICS OF A NOVEL ALKALI FLAME IONIZATION DETECTOR AS AN AIR SENSOR FOR VOLATILE ORGANO-NITROGEN COMPOUNDS
Creators: name: Mogenson, Cole
name: Thurbide, Kevin
Publisher: name: Canadian Journal of Chemistry
Year: 2024

description: A novel alkali flame ionization detector (AFID) is introduced and characterized for use as an air sensor (i.e. without chromatographic separation) for organo-nitrogen compounds. Using a planar channeled quartz design, a simple, lightweight architecture for the portable device is presented, which yields sensitive and selective response toward nitrogen-containing analytes. For instance, the AFID sensor offers a detection limit of 30 pg N/s and a selectivity for nitrogen response over carbon of nearly 2 orders of magnitude. Further, nitrogen response is linear over the 1000-fold range of concentrations investigated. Relative to a flame photometric detector (FPD) device also used in a sensor mode, the AFID is observed to provide 100 times greater S/N values for nitrogen analytes with a nitrogen to carbon selectivity that is about 15 times larger. When using the AFID and FPD sensors in tandem, it is found that the response ratio of the simultaneous signals generated by each, produces characteristic values that more clearly identify the presence or absence of nitrogen in unknown analytes. The AFID sensor was used to detect organo-nitrogen analytes in several samples, and results indicate that it could be a useful approach for portable air sensing of nitrogen compounds.
Dahlstedtia pinnata Malme
Creators: name: Maia, Valéria Cid
name: Mascarenhas, Bernardo
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Dahlstedtia
Dahlstedtia pinnata

description: Dahlstedtia pinnata (Benth.) Malme (n = 1)
 Gall: on stem, fusiform, green, glabrous (Fig. 9F). Gall-inducer: not determined. Trail: Guapimirim: Ponte Velha (29.III.2022).
Maia & Mascarenhas (2017) reported this same gall in the Parque Nacional do Itatiaia.
description: Published as part of Maia, Valéria Cid & Mascarenhas, Bernardo, 2023, Insect galls of Parque Nacional da Serra dos Órgãos (Rio de Janeiro State, Southeastern Brazil), pp. 1-56 in Papéis Avulsos de Zoologia 63 on page 21, DOI: 10.11606/1807-0205/2023.63.040, http://zenodo.org/record/10270483
No shortcuts to credibility evaluation: The importance of expertise and information literacy
Creators: name: Kavanaugh, Jill
name: Lenart, Bartlomiej
Publisher: name: IGI Global
Year: 2017
Subjects: CRAAP Test
information literacy
source credibility evaluation

description: Chapter in Establishing and Evaluating Digital Ethos and Online Credibility, https://doi.org/10.4018/978-1-5225-1072-7
description: This chapter argues that as the online informational landscape continues to expand, shortcuts to source credibility evaluation, in particular the revered checklist approach, falls short of its intended goal, and this method cannot replace the acquisition of a more formally acquired and comprehensive information literacy skill set. By examining the current standard of checklist criteria, the authors identify problems with this approach. Such shortcuts are not necessarily effective for online source credibility assessment, and the authors contend that in cases of high-stakes informational needs, they cannot adequately replace the expertise of information professionals, nor displace the need for proper and continuous information literacy education.
Noise Correlation Scalings: Revisiting the Quantum Phase Transition in Incommensurate Lattices with Hard-Core Bosons
Creators: name: He, Kai
name: Satija, Indubala I.
name: Clark, Charles W.
name: Rey, Ana Maria
name: Rigol, Marcos
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Finite size scalings of the momentum distribution and noise correlations are performed to study Mott insulator, Bose glass, and superfluid quantum phases in hard-core bosons (HCBs) subjected to quasi-periodic disorder. The exponents of the correlation functions at the Superfluid to Bose glass (SF-BG) transition are found to be approximately one half of the ones that characterizes the superfluid phase. The derivatives of the peak intensities of the correlation functions with respect to quasiperiodic disorder are shown to diverge at the SF-BG critical point. This behavior does not occur in the corresponding free fermion system, which also exhibits an Anderson-like transition at the same critical point, and thus provides a unique experimental tool to locate the phase transition in interacting bosonic systems. We also report on the absence of primary sublattice peaks in the momentum distribution of the superfluid phase for special fillings.
description: 9 pages, 9 figures, as published
Dust and Ionized Gas Association in E/S0 Galaxies with Dust Lanes: Clues to their Origin
Creators: name: Finkelman, Ido
name: Brosch, Noah
name: Funes, S. J. Jose G.
name: Barway, Sudhanshu
name: Kniazev, Alexei
name: Vaisanen, Petri
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results from an on-going programme to study the dust and ionized gas in E/S0 galaxies with dust lanes. Our data, together with results from previous studies of E/S0 galaxies, are used to demonstrate the tight relationship between these two components. This relationship is discussed in light of our current understanding of the nature and origin of the interstellar medium (ISM), and in particular in the context of the interplay between the different multi-temperature components. We show that focusing on dust obscured regions as tracers of the ISM, and on their properties, serves as independent evidence for the external origin of the dust and ionized gas.
description: 11 pages, 5 figures, 3 tables. MNRAS in press
Dalbergia foliolosa Benth.
Creators: name: Maia, Valéria Cid
name: Mascarenhas, Bernardo
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Dalbergia
Dalbergia foliolosa

description: Dalbergia foliolosa Benth. (n = 3)   Gall: on bud, globoid, imbricated, brown, glabrous, one-chambered (Fig. 9G). Gall-inducer: not determined.
 Trails: Teresópolis: Casa do Pesquisador (13.IX.2021), Primavera (15.IX.2021), Suspensa (25.XI.2021).
 Gall: on leaf, conical, yellow, glabrous, one-chambered (Fig. 9H). Gall-inducer: Cecidomyiidae. Trails: Teresópolis: Primavera (15.IX.2021), Suspensa (25. XI.2021); Guapimirim: Alameda Von Spix (25.V. 2022).
 Gall: on stem, fusiform, green, glabrous,one-chambered (Fig.9I). Gall-inducer: not determined. Trails: Teresópolis: Primavera (15.IX.2021), Suspensa (25.XI.2021), Bosque Santa Helena (06.XII.2021).
Maia & Mascarenhas (2017) reported galls on stem and leaf of this plant species in the Parque Nacional do Itatiaia. The stem gall is the same recorded here, the others are different morphotypes.
description: Published as part of Maia, Valéria Cid & Mascarenhas, Bernardo, 2023, Insect galls of Parque Nacional da Serra dos Órgãos (Rio de Janeiro State, Southeastern Brazil), pp. 1-56 in Papéis Avulsos de Zoologia 63 on page 21, DOI: 10.11606/1807-0205/2023.63.040, http://zenodo.org/record/10270483
Dene Sųłiné Non-Segmental Morphology: Implications for Morphological Theory
Creators: name: Tufts, Kody
Publisher: name: Arts
Year: 2023
Subjects: subject: Dene Sųłiné
subject: Morphology
subject: Paradigm Function Morphology
subject: Distributed Morphology
subject: Non-concatenative morphology
subject: Linguistics
subject: FOS: Languages and literature

description: In this thesis, I undertake an analysis of the verbal morphology of Dene Sųłiné (Na-Dene, North-Central Canada) with a specific focus on two inflectional phenomena implementing non-segmental features of tone and nasality to mark distinctions of aspect and agreement. I critique existing accounts of these phenomena, which attempt to reduce both to affixal morphology, and investigate an alternative treatment as processes of non-concatenative morphology. Non-concatenative morphology holds theoretical interest as one of a variety of phenomena provided as evidence for an autonomous Morphology. In light of this interest, I develop and evaluate analyses of Dene Sųłiné’s non-segmental exponents, applying two theoretical frameworks exemplifying a major divide in thinking on morphological theory: Paradigm Function Morphology (PFM) and Distributed Morphology (DM). PFM recognizes an autonomous Morphology, an essential theoretical role for paradigms, and distinctly morphological Rules of Exponence. Conversely, DM posits a basic equivalence of syntax and morphology, recognizes no theoretical status for the paradigm and attempts to restrict morphological exponence to affixation. I test applications of PFM and DM to Dene Sųłiné’s non-segmental exponents, basing analyses on existing data and novel elicitations of Wollaston Lake Dene Sųłiné. Theoretical applications reveal characteristics of these non-segmental exponents challenging accounts in both frameworks. In particular, I identify a noteworthy “look-ahead” problem pertaining to the selection of the tonal exponent. This look-ahead problem seems best characterized as the sensitivity of a less-peripheral exponent to the phonology of a more-peripherally-applying exponent, a situation I argue both frameworks are challenged to address. Novel data from the Wollaston Lake dialect further complicates the account of this exponent’s selection, while also revealing a decreased role for affixation in the verbal morphology, suggesting an increase in the informational load assumed by non-concatenative processes. In addition to the challenges presented to the DM account by the tonal exponent’s formal quality, I present arguments against DM theorists’ claims that Dene surface morphotactics can be reasonably taken to derive from assumed universals of syntactic structure. I ultimately find that the formal and distributional characteristics of these exponents recommend a distinctly morphological account, not a reductionist, “syntacticocentric” one.
Inga marginata Willd.
Creators: name: Maia, Valéria Cid
name: Mascarenhas, Bernardo
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Inga
Inga marginata

description: Inga marginata Willd. (n = 2)
 Gall: on bud, globoid, brown, glabrous, multichambered (Fig. 10F). Gall-inducer: not determined. Trails: Teresópolis: Cachoeira Ceci-Peri (13.IX.2021), Barragem road (from Alojamento to Camping) (25.IV.2022).
 Gall: on leaf, globoid, brown, with trichomes (Fig. 10G). Gall-inducer: Cecidomyiidae. Parasitoids: Hymenoptera. Trails: Teresópolis: Cachoeira Ceci-Peri (13. IX.2021), Mozart-Catão to Primavera (25.X.2021), Mozart-Catão (27.X.2021), Barragem road (from Alojamento to Camping) (25.IV.2022).
 Maia & Mascarenhas (2017) reported the same leaf gall on this plant in the Parque Nacional do Itatiaia.Other galls were recorded by Julião et al. (2014) in AM, Araújo et al. (2015) in GO, and Goetz et al. (2018) in RS.
description: Published as part of Maia, Valéria Cid & Mascarenhas, Bernardo, 2023, Insect galls of Parque Nacional da Serra dos Órgãos (Rio de Janeiro State, Southeastern Brazil), pp. 1-56 in Papéis Avulsos de Zoologia 63 on page 23, DOI: 10.11606/1807-0205/2023.63.040, http://zenodo.org/record/10270483