cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Berichterstattung unter der Klimarahmenkonvention der Vereinten Nationen und dem Kyoto-Protokoll 2017
title: NIR 2017 (deutsch)
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2017
Subjects: subject: UNFCCC
subject: Entwicklung der Treibhausgasemissionen
subject: Treibhausgasinventar
subject: Klimarahmenkonvention
subject: Treibhausgasemission
subject: Treibhausgasausstoß
subject: Klima | Energie

description: Als Vertragsstaat der Klimarahmenkonvention der Vereinten Nationen (UNFCCC) ist Deutschland seit 1994 dazu verpflichtet, Inventare zu nationalen Treibhausgasemissionen zu erstellen, zu veröffentlichen und regelmäßig fortzuschreiben. Gemäß Entscheidung 24/CP.19 müssen alle im ANNEX I der Klimarahmenkonvention aufgeführten Staaten jährlich einen Nationalen Inventarbericht (NIR) erstellen und übermitteln, der detaillierte und vollständige Angaben über den gesamten Prozess der Erstellung der Treibhausgasinventare bereitstellt. Durch diesen Bericht soll die Transparenz, Konsistenz und Vergleichbarkeit der Inventare sichergestellt und der unabhängige Überprüfungsprozess unterstützt werden. Quelle:http://www.umweltbundesamt.de/
description: Als Vertragsstaat der Klimarahmenkonvention der Vereinten Nationen (⁠UNFCCC⁠) ist Deutschland seit 1994 dazu verpflichtet, Inventare zu nationalen Treibhausgasemissionen zu erstellen, zu veröffentlichen und regelmäßig fortzuschreiben. Gemäß Entscheidung 24/CP.19 müssen alle im ANNEX I der Klimarahmenkonvention aufgeführten Staaten jährlich einen Nationalen Inventarbericht (NIR) erstellen und übermitteln, der detaillierte und vollständige Angaben über den gesamten Prozess der Erstellung der Treibhausgasinventare bereitstellt. Durch diesen Bericht soll die Transparenz, Konsistenz und Vergleichbarkeit der Inventare sichergestellt und der unabhängige Überprüfungsprozess unterstützt werden.
High willingness to use rapid fentanyl test strips among young adults who use drugs
Creators: name: Krieger, Maxwell S.
name: Yedinak, Jesse L.
name: Buxton, Jane A.
name: Lysyshyn, Mark
name: Bernstein, Edward
name: Rich, Josiah D.
name: Green, Traci C.
name: Hadland, Scott E.
name: Marshall, Brandon David Lewis
Publisher: name: BioMed Central
Year: 2018

description: Background: Synthetic opioid overdose mortality among young adults has risen more than 300% in the USA since 2013, primarily due to the contamination of heroin and other drugs with illicitly manufactured fentanyl. Rapid test strips, which can be used to detect the presence of fentanyl in drug samples (before use) or urine (after use), may help inform people about their exposure risk. The purpose of this study was to determine whether young adults who use drugs were willing to use rapid test strips as a harm reduction intervention to prevent overdose. We hypothesized that those who had ever overdosed would be more willing to use the test strips. Methods: We recruited a convenience sample of young adults who use drugs in Rhode Island from May to September 2017. Eligible participants (aged 18 to 35 with past 30-day drug use) completed an interviewer-administered survey. The survey assessed participant’s socio-demographic and behavioral characteristics, overdose risk, as well as suspected fentanyl exposure, and willingness to use take-home rapid test strips to detect fentanyl contamination in drugs or urine. Participants were then trained to use the test strips and were given ten to take home. Results: Among 93 eligible participants, the mean age was 27 years (SD = 4.8), 56% (n = 52) of participants were male, and 56% (n = 52) were white. Over one third (n = 34, 37%) had a prior overdose. The vast majority (n = 86, 92%) of participants wanted to know if there was fentanyl in their drug supply prior to their use. Sixty-five (70%) participants reported concern that their drugs were contaminated with fentanyl. After the brief training, nearly all participants (n = 88, 95%) reported that they planned to use the test strips. Conclusions: More than 90% of participants reported willingness to use rapid test strips regardless of having ever overdosed, suggesting that rapid fentanyl testing is an acceptable harm reduction intervention among young people who use drugs in Rhode Island. Study follow-up is ongoing to determine whether, how, and under what circumstances participants used the rapid test strips and if a positive result contributed to changes in overdose risk behavior.
The footy killed Optus' DVR
Creators: name: Rothnie, Warwick A
Publisher: name: Swinburne
Year: 2024

description: Optus' TV Now service sought to take advantage of the "home taping" or "time shifting" exception to copyright infringement provided by s 111 of the Copyright Act 1968 (Cth). It enabled its mobile phone subscribers to record free to air television programs from their mobile phones, with the ability to play them back at a later time. Once a subscriber selected a program for recording, it was recorded by an automated process on Optus' servers. A Full Court of the Federal Court has overturned the trial judge's finding that this service was legal. This article considers the Full Court's reasoning and the questions it raises for the concept of "making" under the Copyright Act.
Vorticity transport analysis of low reynolds number translating and rotating wings
Creators: name: Paulson, James H
Publisher: name: University of Iowa
Year: 2023
Subjects: public abstract

description: An aspect ratio 9.5 rectangular wing is articulated in revolving and translating motions at a 45-degree angle of incidence and Reynolds number $Re = O(300)$. Four initial cases are considered varying two salient aspects of rotational motion. Coriolis and centripetal accelerations are present in the rotating cases and absent in the translating cases, whereas uniform and linearly-varying inflow velocity profiles are imposed on instances of the rotating and translating cases. Each case exhibits distinct leading-edge vortex (LEV) growth and behavior. For the range of displacements studied (180 deg. rotation and corresponding translational displacement) a stably attached LEV is observed when rotational accelerations and/or a linearly-varying inflow velocity profile is present; however, the inflow velocity profile has a stronger effect on stability of the LEV. LEV vorticity magnitude and lift force are significantly augmented when both factors are included (i.e. the full revolving wing case). Vorticity transport analyses are conducted in a planar control region two chords from the axis of rotation, where three-dimensional vorticity transport is shown to be important in mitigating LEV growth, and at an equivalent distance from the wing root in the translating case. The revolving wing exhibits a substantially larger leading-edge shear-layer vorticity flux than the other cases. Inspection of the Coriolis tilting term demonstrates little relevance to LEV stability. In all cases, the surface diffusive flux and shear-layer vorticity flux contributions are found to be negatively correlated. Additionally, a correlation is found between the spanwise convective flux and tilting flux contributions in all cases. Decomposition of the spanwise convective flux reveals that the tilting flux is a constituent of it, demonstrating that the two phenomena are kinematically linked. Based on this result, a significantly simplified vorticity transport equation is developed in which all of the three-dimensional transport fluxes are consolidated into a single term, providing new physical interpretation of these terms. Six additional cases, with contributions from rotational accelerations increased, or the inflow gradient decreased, elucidate the relative impact on LEV stability of both aspects of rotational motion. Exceptional LEV stability was apparent when the rotational accelerations are increased, while LEV strength and stability decreased as the intensity of the inflow gradient decreased. Spatial distributions of out-of-plane vorticity transport mechanisms emphasized the importance of spanwise flow in promoting LEV stability. Finally, the no-slip boundary condition on the suction surface was removed for the fully rotating case, and the presence surface diffusion led to decreased LEV stability, contrasting previous understanding.
Synthesis of naturally occurring phototoxic thiophenes and their derivatives.
Creators: name: Soucy-Breau, Chantal.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1990
Subjects: subject: Chemistry, Organic.

description: Analogues and derivatives of naturally occurring $\alpha$-terthienyl 3 have been synthesized by using the nickel-catalyzed Grignard-Wurtz cross-coupling reaction. This method has proven useful for the introduction of non-polar substituents on 2-bromothiophene which upon subsequent cross-coupling with 5-iodo-$\alpha$-dithienyl 185 led to a successful variety of 5-substituted $\alpha$-terthienyls. Derivatives of $\alpha$-terthienyl bearing polar functional groups were synthesized either by: (1) introduction of electron-withdrawing and electron-donating at C-5 and C-5$\sp{\prime\prime}$; or (2) chain extension from an appropriate substituted derivatives. In order to establish structure/activity relationships, various substituent at C-5 on the aromatic ring were made. Among the derivatives of $\alpha$-terthienyl, compound 165 was synthesized by the palladium-catalyzed coupling reaction with CuI. By adapting this methodology on $\alpha$-dithienyls, the reaction was found to be useful for coupling aryl halides such as 5-iodo-$\alpha$-dithienyl 185 with a variety of substituted 1$\sp\prime$-alkynes derivatives. A series of functional $\alpha$-dithienyl acetylene derivatives were made. The biological activity of $\alpha$-terthienyl and $\alpha$-dithienyl derivatives, as determined by feeding trials with the mosquito larvae (Aedes atropalpus) and brine shrimp, is discussed in light of the relative toxicities of these compounds.
ZFOURGE catalogue of AGN candidates: An enhancement of 160-μm-derived star formation rates in active galaxies to z = 3.2
Creators: name: Cowley, Michael J.
name: Spitler, Lee R.
name: Tran, Kim-Vy H.
name: Rees, Glen A.
name: Labbe, Ivo
name: Allen, Rebecca
name: Brammer, Gabriel B.
name: Glazebrook, Karl
name: Hopkins, Andrew M.
name: Juneau, Stéphanie
name: Kacprzak, Glenn
name: Mullaney, James R.
name: Nanayakkara, Themiya
name: Papovich, Casey
name: Quadri, Ryan F.
name: Straatman, Caroline M. S.
name: Tomczak, Adam R.
name: van Dokkum, Pieter G.
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 510103
subject: Cosmology and extragalactic astronomy

description: We investigate active galactic nuclei (AGN) candidates within the FourStar Galaxy Evolution Survey (ZFOURGE) to determine the impact they have on star formation in their host galaxies. We first identify a population of radio, X-ray, and infrared-selected AGN by cross-matching the deep Ks-band imaging of ZFOURGE with overlapping multiwavelength data. From this, we construct a mass-complete (log(M∗/M⊙M∗/M⊙) ≥9.75), AGN luminosity limited sample of 235 AGN hosts over z = 0.2–3.2. We compare the rest-frame U − V versus V − J (UVJ) colours and specific star formation rates (sSFRs) of the AGN hosts to a mass-matched control sample of inactive (non-AGN) galaxies. UVJ diagnostics reveal AGN tend to be hosted in a lower fraction of quiescent galaxies and a higher fraction of dusty galaxies than the control sample. Using 160 μm Herschel PACS data, we find the mean specific star formation rate of AGN hosts to be elevated by 0.34 ± 0.07 dex with respect to the control sample across all redshifts. This offset is primarily driven by infrared-selected AGN, where the mean sSFR is found to be elevated by as much as a factor of ∼5. The remaining population, comprised predominantly of X-ray AGN hosts, is found mostly consistent with inactive galaxies, exhibiting only a marginal elevation. We discuss scenarios that may explain these findings and postulate that AGN are less likely to be a dominant mechanism for moderating galaxy growth via quenching than has previously been suggested.
Publication type
The magical Narcissus: A study of the water-gazing motif in the Narcissus myth.
Creators: name: Nelson, Max.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1997
Subjects: subject: Literature, Classical.

description: The originating context of myths (as interpretations of events, phenomena, or customs through narrative) can be discovered through a "structurist" approach in which the combination and function of traditional story elements or "motifs" are carefully examined and compared. By analyzing the motifs of the Narcissus myth in such a manner, the original context of the telling of the myth is to be ascertained. Scholars have interpreted the function of the original water-gazing Narcissus as arising from the superstition that one could lose one's soul in turbulent waters or that one could give oneself the evil-eye, but it makes most sense in terms of revelation. The originating context of the myth could then have been the importation of the rite of hydromancy from Egypt to Greece and Rome around 100 B.C. (perhaps by Bolus of Mendes or through the cult of Isis and Osiris), at which time the divinatory prescriptions were explained not rationally as means of hypnotizing a boy-medium, but as narrative elements in a mythological story. (Abstract shortened by UMI.)
Unsettled identities amid settled classifications? : Toward a sociology of racial appraisals
Creators: name: Roth, Wendy D.
Publisher: name: The University of British Columbia
Year: 2019

description: Individuals are claiming greater scope for choice in their racial identities. But how they are seen and classified by others is not necessarily changing in a similar way. Racial appraisals are the way that people classify the race of others, both particular individuals and larger groups. In this paper, I make a case for the study of racial appraisals as a field of sociological inquiry. I map out the different analytical levels and methodological approaches for this field and discuss how these can be used to understand observed race, norms of racial classification, and societal norms of the racial order. I present an example of how societal norms and logics of racial classification can be analyzed in real time through survey research, using 2015-2016 data on 866 White Americans’ reactions to Rachel Doležal’s racial identity claims. I present an agenda for studying changes in racial boundaries and classification norms through the longitudinal tracking of racial appraisals.
Stochastic analysis of human-machine systems
Creators: name: Satish Shah, Aashish
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Engineering, Mechanical.

description: This study presents a stochastic analysis of three-state device systems subjected to critical human errors and common-cause failures. The systems analysed incorporate elements of commonly used redundant configurations such as parallel, series, k-out-of-n and standby. For the systems that are subjected to constant failure and repair rates, the Markov State Space technique is used to perform the reliability and availability analysis. Generalized and special-case expressions for the system reliability, the mean time to failure, the steady state availability and the time-dependent availability for each of these systems are developed. For the parallel system with non-constant failure and repair rates, the Device of Stages approach is used to formulate a modified Markov model with the addition of dummy states. The impact of human error, common-cause failure, failed system repair policy and elements of redundant configurations on the values of the system reliability, the mean time to failure, the time-dependent availability and the steady state availability is demonstrated by means of plots. (Abstract shortened by UMI.)
Predicting antibiotic resistance using machine learning
Creators: name: Kromer-Edwards, Cory
Publisher: name: University of Iowa
Year: 2023
Subjects: Antibiotic
Genetic Algorithm
MIC
Predict Resistance
Simulation
public abstract
Bacteria

description: Bacteria gain resistance mechanisms to antimicrobial agents over time. These resistance mechanisms lead to increasing Antimicrobial Resistance (AMR). Increasing AMR leads to higher morbidity and mortality over time. Because of this, AMR will become the leading cause of death in the world by 2050. The increase in morbidity and mortality is due to the time to determine Minimum Inhibitory Concentration (MIC) values. An MIC is a minimum concentration of an antimicrobial agent required to inhibit the visible growth of bacteria. MICs, along with clinical breakpoints or epidemiological breakpoints, determine if a bacterial isolate is susceptible or resistant to a given antimicrobial agent. Determining MICs is a time-consuming process that takes anywhere from 24 to 72 hours. During this time, a physician prescribes an empirical antimicrobial therapy to the patient to help stave off the bacterial infection. As AMR increases, these empirical therapies become less effective, leading to less time available to determine MICs.
description: Lowering the time to determine MICs is of key importance. One approach is to use Machine Learning (ML) to predict MICs. In this thesis, many avenues for ML are examined to find the most effective algorithm, input dataset, and processing of the dataset to create a generalizable ML model to predict MICs. A simulation can then use this generalizable model to determine future antimicrobial agents and future resistance mechanisms before they appear. This simulation utilizes two Genetic Algorithms to perform this task. With this simulation, physicians could know future AMR, and know how to counteract that AMR before a patient enters a hospital. Physicians being able to predict future AMR would lead to few MICs needing to be predicted for/determined and quicker response times rather than predicting MICs alone.
description: All the following algorithms are discussed including; Decision Trees, Random Forests, K-Nearest Neighbors, XGBoost, Dense Neural Networks, Convolutional Neural Networks, and Recurrent Neural Networks. Out of these algorithms, a Recurrent Neural Network is what was able to create a generalizable model using a bacterial isolate's assembled DNA sequence (in the form of contigs) and an antimicrobial agent's Simplified Molecular Input Line Entry System (SMILES) string. The combination of these two datasets was what gave the highest accuracy from all datasets tested, including; gene acquisition data, contigs alone, demographic data, K-Mer counts, and Single Nucleotide Polymorphisms (SNP).
Herpes simplex virus cytoplasmic assembly center as a tool for viral egress research and therapeutic development
Creators: name: White, Shaowen
Publisher: name: University of Iowa
Year: 2022
Subjects: cytoplasmic assembly
HCMV
HSV
peptide inhibitor
viral assembly center
public abstract

description: Herpes simplex virus (HSV) is a neuroinvasive virus that has been used as a model organism for studying common properties of all herpesviruses. HSV induces host organelle rearrangement and forms multiple, dispersed assembly compartments in epithelial cells, of which identity is controversial, with evidence supporting either Golgi- or recycling endosome-derived membranes. My works showed that HSV forms a visually distinct unitary cytoplasmic viral assembly center (cVAC) in both cancerous and primary neuronal cells that concentrates viral structural proteins and is a major site of capsid envelopment. The HSV cVAC also concentrates host membranes that are important for viral assembly, including Golgi- and recycling endosome-derived membranes. The formation and/or maintenance of HSV cVAC depends on intact microtubule network, microtubule associated motor dynein, and a viral tegument protein, pUL51.Further studies discovered that HSV cVAC has two layers of organization: (i) tethering of Golgi- and recycling endosome-derived membranes in a nocodazole-resistant manner, and (ii) concentration of these tethered structures around the centrosome. This vesicle tethering event was not observed in uninfected cells, and depends on viral protein pUL51, suggesting that organelle trafficking in infected cells is distinct from uninfected cells.
description: Lastly, we identified an interaction between pUL51 and host dynein cargo adaptor dynactin. The interaction sequence was mapped to a.a. 90-125 in pUL51. The viral mutant with a.a 90-125 deleted in pUL51 had small growth defect but significant spread defect. Based on these, we designed pUL51 a.a. 90-125-containing peptides that inhibited HSV spread in cell culture in pUL51-dependent manner.
Don't shoot the messenger: Wikileaks and the future of the Internet
Creators: name: De Zwart, Melissa
Publisher: name: Swinburne
Year: 2024

description: This article identifies some of the motivations behind, and the activities of, WikiLeaks. It then analyses the broader implications of the actions taken to withdraw funding support from WikiLeaks through the so-called 'Banking Blockade'. This article then considers the impact of the Banking Blockade which effectively dried up donations to WikiLeaks in 2010. It assesses what this means for the future of the Internet itself as an increasingly privatised domain, where the power of contract can overcome protections offered by the general law.
Exploring the temporal relationship among psychological stress, physical activity, and pain in adults
Creators: name: Brennaman, Courtney
Publisher: name: University of Iowa
Year: 2022
Subjects: ecological momentary assessment
physical activity
psychological stress
public abstract
Pain

description: Background: Literature has supported the complex relationship among psychological stress, physical activity, and pain; however, most studies rely on retrospective self-report, which can obtain recall errors. Ecological momentary assessment (EMA) is an assessment tool that provides the ability to gather information about individuals’ behaviors in their contexts, in real-time. EMA allows for continuous monitoring of variables over time, which can help shed light on temporal relationships between variables over time, such as stress, pain, and activity levels. Purpose: The purpose of the present study was to fill a gap in the literature moving from retrospective report to using EMA to explore the relationships among psychological stress and physical activity on subsequent pain levels in an adult sample. Informed by the transactional model of stress and coping, we proposed that prior levels of stress would be positively related to subsequent pain levels; and conversely, that prior levels of physical activity would be negatively related to subsequent pain. Methods: This study consisted of 100 participants recruited from a national database and large midwestern university. Participants were sent a wearable device (Fitbit Inspire) to capture their physical activity levels over a two-week period. Participants also responded to ping requests four-times daily to assess stress levels and pain levels on a 0-10 scale (0 meaning no symptoms of stress or pain and 10 meaning the most severe symptoms of stress or pain). Results: Univariate and multivariate linear mixed effects regression models were used to test our hypotheses. Contrary to our hypotheses, prior stress and physical activity were not significantly related to subsequent pain levels; however, significant correlational relationships were found between our variables when measured cross-sectionally. Conclusions: Informed by the transactional model of stress and coping, psychological stress and physical activity did not significantly impact the outcome of subsequent pain; however, correlational relationships did exist among our study variables. Future research could benefit from exploring the temporal relationship among psychological stress, physical activity, and pain. Additionally, the present study provides support for further exploration of EMA for pain research.
title: Salón de Clase
title: Intermediate Spanish for Education Professionals
titleType: Subtitle
Creators: name: Castro Ortiz, Fernando
name: Zimotti, Giovanni
Publisher: name: University of Iowa
Year: 2021
Subjects: OpenHawks
intermediate Spanish
language instruction
open educational resource
Spanish textbook
Education

description: Salón de clase, Intermediate Spanish for Education Professionals is a comprehensive intermediate Spanish open access textbook with reading, listening, speaking, and writing practice for students who have an interest and/or intend to pursue a career in the field of Education (teachers, administrators, counselors, psychologists, social workers, support staff members, paraprofessionals, among others). This Open Education Resource (OER) aims to explore the role of Spanish language and Spanish speakers in the American education system, as well as to improve student communicative abilities in Spanish. Salón de clase integrates interactive activities (h5p), video interviews with Spanish speakers to present authentic materials, and topics related to education. Grammar is not presented as a standalone topic, but it is seemly integrated into all parts of this book. For more details go to: https://salondeclase.sites.uiowa.edu/
Protecting natural resources by creating material cycles in the construction sector
Creators: name: Asam, Claus
name: Keilhacker, Theresa
name: Müller, Anette
Publisher: name: My University
Year: 2019
Subjects: subject: Ressourcenschonung
subject: Stoffkreislauf
subject: Sekundärrohstoff
subject: Baustoffrecycling
subject: resource conservation
subject: material cycles
subject: secondary raw materials
subject: Recycling
subject: sustainable construction
subject: Abfall | Ressourcen
subject: Waste | Resources

description: In its brochure "Protecting natural resources by creating material cycles in the construction sector ", the Commission for Sustainable Construction Agency (KNBau) explains how material cycles in the construction sector can be better implemented. The KNBau identifies two fields of action: the recovery of secondary raw materials from existing structures and the planning of resource-conserving structures recyclable in the future. Among other things, it recommends to the public sector how to achieve high recycling rates for construction and demolition waste - by supporting innovative technologies and by promoting the acceptance among construction specialists, e.g. through further training courses. Quelle: http://www.umweltbundesamt.de/
description: In its brochure "Protecting natural resources by creating material cycles  in the construction sector ", the Commission for Sustainable Construction Agency (KNBau) explains how material cycles in the construction sector can be better implemented. The KNBau identifies two fields of action: the recovery of secondary raw materials from existing structures and the planning of resource-conserving structures recyclable in the future. Among other things, it recommends to the public sector how to achieve high recycling rates for construction and demolition waste -  by supporting innovative technologies and by promoting the acceptance among construction specialists, e.g. through further training courses.
A cell autonomous requirement for the cell cycle regulatory RbE2F pathway in neuronal migration
Creators: name: McClellan, Kelly Anne
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2008
Subjects: subject: Biology, Neuroscience.

description: While the role of the cell cycle regulatory Rb/E2F pathway is well appreciated as a key regulator of neural precursor proliferation, here a novel role for the Rb pathway in neuronal migration is described. Using cortical slice co-culture assays a cell autonomous requirement was identified for Rb in regulating migration of ventrally derived interneurons in the developing telencephalon. Next, we sought to determine the mechanism by which Rb mediates proliferation and migration in neurogenesis. Members of the E2F transcription factor family are key Rb interacting factors, well known for mediating cell cycle regulation, whose activity is deregulated in the absence of Rb. Using mice with compound null mutations of Rb and E2F1 or E2F3, we asked to which extent either E2F interacts with Rb in neurogenesis. Here, it is reported that E2F1 and E2F3 are both functionally relevant targets in neural precursor proliferation, cell cycle exit, and laminar patterning. Neuronal migration, however, is specifically mediated through E2F3, beyond its role in cell cycle regulation. Through microarray based screening methods neogenin, a member of the neogenin-netrin pathway, was identified as a candidate E2F responsive gene, and through in vitro explant cultures a disrupted netrin mediated migration response was observed in Rb deficient interneurons. Together, these results are the first to establish a requirement for the Rb/E2F pathway beyond cell cycle regulation in nervous system development in vivo.
The SLUGGS survey: Stellar kinematics, kinemetry and trends at large radii in 25 early-type galaxies
Creators: name: Foster, Caroline
name: Pastorello, Nicola
name: Roediger, Joel
name: Brodie, Jean
name: Forbes, Duncan
name: Kartha, Sreeja S.
name: Pota, Vincenzo
name: Romanowsky, Aaron J.
name: Spitler, Lee R.
name: Strader, Jay
name: Usher, Christopher
name: Arnold, Jacob A.
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 510103
subject: Cosmology and extragalactic astronomy

description: Due to longer dynamical time-scales, the outskirts of early-type galaxies retain the footprint of their formation and assembly. Under the popular two-phase galaxy formation scenario, an initial in situ phase of star formation is followed by minor merging and accretion of ex situ stars leading to the expectation of observable transitions in the kinematics and stellar populations on large scales. However, observing the faint galactic outskirts is challenging, often leaving the transition unexplored. The large-scale, spatially resolved stellar kinematic data from the SAGES Legacy Unifying Galaxies and GlobularS (SLUGGS) survey are ideal for detecting kinematic transitions. We present kinematic maps out to 2.6 effective radii on average, kinemetry profiles, measurement of kinematic twists and misalignments, and the average outer intrinsic shape of 25 SLUGGS galaxies. We find good overall agreement in the kinematic maps and kinemetry radial profiles with literature. We are able to confirm significant radial modulations in rotational versus pressure support of galaxies with radius so that the central and outer rotational properties may be quite different. We also test the suggestion that galaxies may be more triaxial in their outskirts and find that while fast rotating galaxies were already shown to be axisymmetric in their inner regions, we are unable to rule out triaxiality in their outskirts.We compare our derived outer kinematic information to model predictions from a two-phase galaxy formation scenario. We find that the theoretical range of local outer angular momentum agrees well with our observations, but that radial modulations are much smaller than predicted.
Optimierung der Operationstechnik bei Cochlea-Implantationen zur Minimierung von intracochleären Druckschwankungen
Creators: name: Mittmann, Philipp
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2020
Subjects: subject: residual hearing
subject: cochlear implantation
subject: intracochlear pressure changes
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Die Indikationen der Cochleaimplantatversorgung in Deutschland haben sich in den letzten Jahren gewandelt. Der Erhalt des Restgehörs zur Nutzung der Elektroakustischen Stimulation ist zunehmend in den Fokus der Forschung geraten. Ziel der Arbeit war es verschiedene Teilaspekte der Cochleaimplantatversorgung unter dem Aspekt der intracochleären Druckveränderung zu untersuchen und die intracochleären Druckveränderungen zu minimieren.
The impact of item parameter drift on the precision of online calibration in computer adaptive test
Creators: name: Ye, Tianpeng
Publisher: name: University of Iowa
Year: 2025
Subjects: CAT
Item Parameter Drift
Online Calibration
public abstract

description: Item parameter drift (IPD) has always been a potential threat to the reliability and validity of educational measurement. Researchers have made continuous efforts to detect drifted items, to examine the impact of drift in the paper-pencil testing and extended the work to the computer adaptive testing. As computer adaptive testing becomes the new trend and online calibration is in increasing demand, the impact of item parameter drift in the operational item pool would not only affect the examinee's ability, but also distort the precision of pretest item parameter estimation.
description: This paper investigated the impact of IPDs with the operational CAT items on the precision of online calibration via a simulation study. Specifically, five independent factors, online calibration method, drift amount, drift size, drift direction, and pool size were fully crossed and examined. Comparisons were made across all levels of factors based on three evaluation criteria. Results showed that the drift amount, drift direction, and online calibration were the three primary studied factors impacting the precision of pretest item parameter estimates when IPDs were present. The D-Tp online calibration method outperformed the random method when IPDs occurred to most difficult operational items whereas the random method is preferred under other levels of drift amount. In other words, the random method can be robust to IPDs under various conditions, even though the D-Tp method performs better when IPD is not present. When incorporating the online calibration into an operational testing program, it is recommended for a testing program to be aware of which types of potential IPDs are with the operational item pool, so that the appropriate online calibration method could be selected and implemented.
Functional studies in Rb regulation of skeletal myogenic program
Creators: name: Huh, Michael S
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Biology, Cell.

description: The molecular orchestration of skeletal muscle differentiation is a concerted process involving muscle specific transcription factors and components of the cell cycle machinery. The functional capacity of the master myogenic transcription factors MyoD and Myf5 are directly coupled to cell cycle regulatory molecules. MyoD activation powerfully induces differentiation and cell cycle withdrawal in G1. Transit through the G1 restriction point is regulated by the retinoblastoma (Rb) protein. Therefore, skeletal muscle differentiation was assessed in the absence of Rb by histology, immunohistochemistry, and molecular techniques. Rb null myoblasts displayed profound deficiencies in their ability to exit the cell cycle, inhibit apoptosis, and fuse into terminally differentiated myotubes. Global expression analysis revealed a much higher number of deregulated genes in fully differentiated Rb- myotubes than in proliferating Rb- myoblasts. Specifically, the loss of Rb in myotubes resulted in upregulation of cell cycle genes and the downregulation of muscle structural genes and glycolytic enzymes. Finally, ChIP-RDA genomic location analysis identified E2F7 and Myf5 as direct targets of Rb complexes. These data present a transcriptional model in which Rb potentiates the activity of MyoD by repressing Myf5, thereby promoting the progression of skeletal muscle differentiation.
H-ATLAS/GAMA: the nature and characteristics of optically red galaxies detected at submillimetre wavelengths
Creators: name: Dariush, A.
name: Dib, S.
name: Hony, S.
name: Smith, D. J. B.
name: Zhukovska, S.
name: Dunne, L.
name: Eales, S.
name: Andrae, E.
name: Baes, M.
name: Baldry, I.
name: Bauer, A.
name: Bland-Hawthorn, J.
name: Brough, S.
name: Bourne, N.
name: Cava, A.
name: Clements, D.
name: Cluver, Michelle
name: Cooray, A.
name: De Zotti, G.
name: Driver, S.
name: Grootes, M. W.
name: Hopkins, A. M.
name: Hopwood, R.
name: Kaviraj, S.
name: Kelvin, L.
name: Lara-Lopez, M. A.
name: Liske, J.
name: Loveday, J.
name: Maddox, S.
name: Madore, B.
name: Michałowski, M. J.
name: Pearson, C.
name: Popescu, C.
name: Robotham, A.
name: Rowlands, K.
name: Seibert, M.
name: Shabani, F.
name: Smith, M. W. L.
name: Taylor, Edward
name: Tuffs, R.
name: Valiante, E.
name: Virdee, J. S.
Publisher: name: Swinburne
Year: 2024

description: We combine Herschel/SPIRE submillimetre (submm) observations with existing multiwavelength data to investigate the characteristics of low-redshift, optically red galaxies detected in submm bands. We select a sample of galaxies in the redshift range 0.01 ≤ z ≤ 0.2, having >5σ detections in the SPIRE 250 μm submm waveband. Sources are then divided into two sub-samples of red and blue galaxies, based on their UV-optical colours. Galaxies in the red sample account for ≈4.2 per cent of the total number of sources with stellar masses M* ≳ 1010 M⊙. Following visual classification of the red galaxies, we find that ≳30 per cent of them are early-type galaxies and ≳40 per cent are spirals. The colour of the red-spiral galaxies could be the result of their highly inclined orientation and/or a strong contribution of the old stellar population. It is found that irrespective of their morphological types, red and blue sources occupy environments with more or less similar densities (i.e. the Σ5 parameter). From the analysis of the spectral energy distributions of galaxies in our samples based on MAGPHYS, we find that galaxies in the red sample (of any morphological type) have dust masses similar to those in the blue sample (i.e. normal spiral/star-forming systems). However, in comparison to the red-spirals and in particular blue systems, red-ellipticals have lower mean dust-to-stellar mass ratios. Besides galaxies in the red-elliptical sample have much lower mean star formation/specific star formation rates in contrast to their counterparts in the blue sample. Our results support a scenario where dust in early-type systems is likely to be of an external origin.
L'oeuvre lyrique de Réjean Ducharme et de Michel Tremblay : une étude statistique et stylistique.
Creators: name: Proulx, Robert.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1997
Subjects: subject: Literature, Canadian (French).

description: Parallelement a leur oeuvre romanesque et theatrale, Rejean Ducharme et Michel Tremblay ont ecrit des textes de chansons pour des artistes aussi connus que Robert Charlebois et Pauline Julien. La presente these a pour objet d'eclairer cette partie meconnue de leur oeuvre. Grace a une etude lexicale rigoureuse, inspiree des methodes de la linguistique statistique, nous avons mis en perspective les aspects quantitatifs puis qualitatifs du materiau de base de nos deux auteurs, les mots, dont ils se servent pour creer un univers et le colorer a leur facon. En examinant leur vocabulaire afin d'en determiner les caracteristiques, nous avons aussi ete amene a voir comment ils composent avec un genre qui exige la brievete et la production d'un effet immediat sur l'auditeur. Si l'analyse quantitative a revele quelques differences notoires dans l'emploi de certaines categories grammaticales, elle a surtout servi de base a l'etude stylistique, laquelle tient compte des mots en contexte. L'examen detaille de l'exploitation des vocables juges caracteristiques, y compris l'etude des images et des reseaux semantiques qu'ils dessinent, ainsi que des mots contribuant a l'evocation du cadre et de l'atmosphere des chansons, nous a indique le degre de transformation qu'ils ont subie et, par consequent, l'emploi expressif que font Ducharme et Tremblay de la langue francaise. Cette etude stylistique, qui s'est deployee en plusieurs etapes, a fait ressortir des differences importantes et nombreuses, non seulement entre les univers decrits dans l'oeuvre lyrique de chaque auteur, mais aussi dans les strategies langagieres qu'ils ont adoptees pour creer une atmosphere particuliere et donner le ton voulu a leurs chansons: la description tragi-comique d'un monde urbain, moderne et mouvant dans lequel s'agitent des personnages solitaires et pris dans l'engrenage de la societe de consommation, chez Ducharme; la peinture realiste d'un monde traditionnel transpose en ville, ou les personnages, et en particulier la femme, sont en lutte constante pour ameliorer leur sort, chez Tremblay.
Digital Image Correlation of Strains at Profiled Wood Surfaces Exposed to Wetting and Drying
Creators: name: Mallet, Julian
name: Kalyanasundaram, Shankar
name: Evans, P. D. (Philip D.)
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2019

description: We hypothesize that machining grooves and ridges into the surface of radiata pine deck boards will change the pattern of strains that develop when profiled boards are exposed to wetting and drying. Two wavy profiles were tested, and flat unprofiled boards acted as controls. Full-field surface strain data was collected using digital image correlation. Strains varied across the surface of both flat and profiled boards during wetting and drying. Profiling fundamentally changed surface strain patterns; strain maxima and minima developed in the profile ridges and grooves during wetting, respectively, but this pattern of strains reversed during drying. Such a pronounced reversal of strains was not observed when flat boards were exposed to wetting and drying, although there was a shift towards negative strains when flat boards were dried. We conclude that profiling changes surface strain distribution in deck boards exposed to wetting and drying, and causes high strains to develop in the grooves of profiled boards. These findings help explain why checks in profiled deck boards are mainly confined to profile grooves where they are difficult to see, and the commercial success of profiling at reducing the negative effects of checking on the appearance of wood decking.
Dreamland
Creators: name: Tyler, Sean
Publisher: name: University of Iowa
Year: 2023
Subjects: public abstract

description: This work is a celebration of everything that I have abandoned for my own good, professionally, personally, and spiritually. Since it began, the body of work has grown into a conversation with myself on what I want, and how I can live an emotionally and physically sustainable life.
description: After leaving and processing a traumatic situation, survivors speak of a ‘crash’ of pure exhaustion. This reaction to snapping out of hypervigilance was one of the initial motivations of this work. In addition to peaceful sleep in my own home, there is also sleep that is primarily a collapse from exhaustion, stress, or overwork. This series explores both kinds of rest, rejuvenating sleep and desperately needed sleep shoved into the cracks of an overbooked schedule.
description: I grew up fundamentalist Christian in a cosmology that left no room for mystery, experimentation, or joy. Ritual and witchcraft are rebellions, welcoming the unknown beyond and an unknown future. I also celebrate “unproductive” (from a capitalistic view), and often feminine coded, hobbies that have sprung up in the space left for rest. I am treating self-care in the form of therapy, regular rest, and managing my physical health as a part of my research and practice.
Effect of superoxide dismutase mimetic, AEOL 10150 on the regulation of the endothelinergic system in lungs and heart of rats exposed to air pollutants
Creators: name: Ganesh, Devi
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Biology, Animal Physiology.
subject: Chemistry, Biochemistry.

description: Epidemiological studies have associated cardiopulmonary morbidity and mortality with air pollution. Inhalation of pollutants increases plasma levels of the vasoconstrictor peptide endothelin (ET)-1 and its precursor bigET-1 in experimental animals and human subjects, and induces an oxidative stress in the lungs. Changes of circulating ET-1 is attributed to increased de novo synthesis in lung endothelial cells and spillover in the systemic circulation. Clinical studies indicate that excess ET-1 can be detrimental to individuals with cardiovascular and pulmonary diseases. My hypothesis is that oxidative stress pathways in the alveoli mediate the regulation of the endothelinergic system in response to inhalation of air pollutants. I have tested this hypothesis in male Fischer-344 rats by blocking a potential superoxide surge during or after inhalation of pollutants with a superoxide dismutase (SOD) mimetic drug, AEOL 10150. Rats were injected with 2mg/kg of AEOL 10150 two hours prior to inhalation exposure for four hours to pollutants, and sacrificed immediately or 24 hours post exposure. Treatment with the SOD mimetic abrogated the increase in expression of preproET-1 mRNA and ECE-1 mRNA and plasma ET-1 levels caused by the air pollutants. This suggests that oxidative stress pathways contribute to the regulation of endothelinergic system.
A comparison of three college music ensemble professors’ approaches to teaching Brazilian musical styles to non-Brazilian musicians in the United States of America
Creators: name: Vitorino Dias, Rayne
Publisher: name: University of Iowa
Year: 2022
Subjects: public abstract

description: The purpose of this qualitative comparative case study was to better understand the similarities and differences between how select Brazilian-born and U.S.-born college music ensemble directors facilitate learning of three Brazilian music styles: baião, bossa nova, and samba. Additionally, a secondary purpose was to learn about the relationships between how they teach Brazilian popular musical styles and other music styles. With a focus on the professors’ processes, I intended to provide information about pedagogical practices to music teachers who want to facilitate Brazilian music performances.Three participants were selected for this study. Two are Brazilians and one is a U.S.-born college music instructors with ten years or more of experience teaching musical ensembles. The findings indicated that their differences in approach were influenced by their backgrounds, their respective teaching experiences, as well as their careers as performers. The findings also suggested that the participants shared many similar approaches to nine specific topics: listening; percussion instruments; movement; instructional expectations; musical styles; oral traditions; repertoire; melodies and language; feel.
description: The findings from this research can inform practicing music teachers on strategies such instructing all ensemble members to play percussion instruments in their ensembles and dance to Brazilian music. These two examples build their skills in playing Brazilian musical styles that may not be part of their ethnic heritage.
Connection-oriented data service in DQDB metropolitan area network.
Creators: name: Tao, Xiaojing.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1999
Subjects: subject: Engineering, Electronics and Electrical.

description: This thesis examines and suggests solutions to some of the technical problems and performance problems encountered when designing, modeling, and evaluating a Connection-Oriented (CO) data service in Distributed Queue Dual Bus (DQDB) Metropolitan Area Network. The CO data service primarily supports applications with high Quality of Service (QoS) requirements, such as video and audio. These applications usually are time-sensitive so that a guaranteed bandwidth and limited access delay should be warranted. The challenges in designing the CO service will involve issues such as performance, reliability, evaluating of the system, availability, etc. We present and study a CO service in the base of a former proposed theorem. Our research emphasizes on the ability of CO service to support various types of applications and source sharing among CO and other services. The proposed CO service is designed following the standard distributed queue principle of providing a moderate fairness of utilization. It provides scalability while maintaining the requirement of the two most important performance metrics: CO service throughput, and CO service response time.