cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Towards a Practical Software Engineering Curriculum: A Data-Centric Study
Creators: name: Afshar, Yalda
Publisher: name: Schulich School of Engineering
Year: 2022
Subjects: subject: Software Engineering
subject: Engineering Education
subject: Curriculum Design
subject: Project-Based-Learning
subject: Education
subject: Computer Science

description: This research explores effective pedagogical approaches to create a practical software engineering (SE) curriculum such that students develop strong fundamental SE knowledge and hands-on skills. This research takes a data-centric approach to carefully study and examine several innovative pedagogical approaches with roots in the literature that can offer a constructive Software Engineering (SE) education. The first approach studied is hybrid-PBL to provide a trade-off between teaching fundamental knowledge and developing the habit of designing with respect to SE best practices in students using contextualized learning and Just-in-time teaching (JIT). The data is collected over two semesters in 2019 and 2020. The results from quantitative and qualitative analyses indicate that hybrid-PBL is a practical pedagogical approach. Moreover, students can ensure that they adhere to optimal design patterns and best practices through JIT lectures. The second approach studied is integrated learning, in which two separate courses, namely software design and architecture and database design, offer one final continuous project. Previously, courses were taught in silos resulting in students’ lack of knowledge of how different topics may integrate. Following the new approach, students implement the object-oriented programming phase in the first course; followed by the implementation of a corresponding database in the second course. The study data is collected from an end-of-term survey and the final projects’ artifacts. Analyzing students’ design diagrams reveals that students faced all impedance mismatches in the project and were satisfied with the overall learning from the joint project. Afterwards, a hackathon is integrated into the software development and architecture course curriculum. This research aims to evaluate the effect of working on a real-world web development project in a hackathon on deepening the students’ knowledge of theoretical concepts learned in lectures. The data is collected through two surveys accessible to students before and after the hackathon, and students’ code commits on GitHub. The results from comparing survey responses against Bloom’s taxonomy and their code quality in two phases show the importance of hackathon participation on students’ performance. Ultimately, a hackathon toolkit was designed to support female participation by facilitating discussion about the biases and barriers reside in hackathon environments.
Pattern formation from consistent dynamical closures of uniaxial nematic liquid crystals
Creators: name: Hijar, Humberto
name: de Hoyos, Diego Marquina
name: Santamaria-Holek, Ivan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Pattern formation in uniaxial polymeric liquid crystals is studied for different dynamic closure approximations. Using the principles of mesoscopic non-equilibrium thermodynamics in a mean-field approach, we derive a Fokker-Planck equation for the single-particle non-homogeneous distribution function of particle orientations and the evolution equations for the second and fourth order orientational tensor parameters. Afterwards, two dynamic closure approximations are discussed, one of them considering the relaxation of the fourth order orientational parameter and leading to a novel expression for the free-energy like function in terms of the scalar order parameter. Considering the evolution equation of the density of the system and values of the interaction parameter for which isotropic and nematic phases coexist, our analysis predicts that patterns and traveling waves can be produced in lyotropic uniaxial nematics even in the absence of external driving.
description: 34 pages, 7 figures
Cities in the modern world
Creators: name: Davies, Peter
name: Parker, G
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 430107
subject: Historical archaeology (incl. industrial archaeology)
classificationCode: 4301
subject: Archaeology

description: The archaeology of modern cities has grown enormously over the past half-century, driven in large part by developer-funded urban renewal. This activity has utilized a diverse array of methodological approaches, research paradigms and scales of analysis — a diversity increasingly reflected in the pages of Post-Medieval Archaeology. In this paper, we review the development of urban archaeology, with a particular focus on material remains from the past two or three centuries. We emphasize the role played by commercial archaeology and the growing importance of community engagement, along with changing theoretical models and the emergence of new analytical technologies.
Plataformas de CTI y los identificadores persistentes (PIDs) en el Perú
Creators: name: Guerrero, Del Carpio
Publisher: name: Zenodo
Year: 2023
Subjects: PIDsLATAM23
Identificadores persistentes
Persistent identifiers
Ciencia Abierta
Open Science
PIDs

description: “Identificadores persistentes (PIDs) y ciencia abierta en Latinoamérica” (#PIDsLATAM23) organizado por DataCite, ORCID y ROR es un evento enteramente dedicado a los identificadores persistentes y la ciencia abierta en la región. Dirigido a directores y gestores de investigación, bibliotecarios y personal técnico, en este encuentro hablamos sobre los beneficios de los identificadores persistentes y cómo su adopción contribuye a la ciencia abierta y a un ecosistema de investigación más abierto y robusto. Este evento se realiza en colaboración con la csv,conf,v7. Esta presentación de Abel del Carpio Guerrero ofrece una visión general de la estrategia e implementación de PIDs de CONCYTEC en Perú. -- "Persistent Identifiers (PIDs) and Open Science in Latin America" (#PIDsLATAM23) organized by DataCite, ORCID and ROR is an event entirely dedicated to persistent identifiers and open science in the region. Aimed at research directors and managers, librarians and technical staff, in this meeting we talk about the benefits of persistent identifiers and how their adoption contributes to open science and a more open and robust research ecosystem. This event is held in collaboration with csv,conf,v7. This presentation vy Abel del Carpio Guerrero provides an overview of the PIDs strategy and implementation of CONCYTEC (Peru).
Weak commutation relations of unbounded operators and applications
Creators: name: Bagarello, Fabio
name: Inoue, Atsushi
name: Trapani, Camillo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Four possible definitions of the commutation relation $[S,T]=\Id$ of two closable unbounded operators $S,T$ are compared. The {\em weak} sense of this commutator is given in terms of the inner product of the Hilbert space $\H$ where the operators act. Some consequences on the existence of eigenvectors of two number-like operators are derived and the partial O*-algebra generated by $S,T$ is studied. Some applications are also considered.
description: In press in Journal of Mathematical Physics
Characterizing Perineuronal Nets in the Suprachiasmatic Nucleus and Their Influence on the Circadian System
Creators: name: Blakely, Patricia
Publisher: name: Arts
Year: 2022
Subjects: subject: Chronobiology
subject: Suprachiasmatic nucleus
subject: Perineuronal nets
subject: Circadian rhythms
subject: Extracellular matrix
subject: Neuroscience
subject: Psychology--Behavioral

description: Circadian rhythms describe behavioural and physiological processes that oscillate over the 24-hour day. The suprachiasmatic nucleus (SCN) is the primary pacemaker located in the anterior hypothalamus of mammals and is necessary for driving circadian rhythms. As the SCN receives direct light input from the eye, light can be used to shift the phase of circadian rhythms, such as phase of activity onset. Recently, our lab found extracellular matrix structures called perineuronal nets (PNNs) in the SCN of Syrian hamsters (Mesocricetus auratus), and pilot studies are suggesting that they may play a functional role in the photic response of the circadian system. As there is no known literature describing PNNs in the SCN of any model rodents, the work in this thesis explored the expression of PNNs in the SCN of hamsters, Sprague-Dawley rats (Rattus norvegicus) and C57BL/6 mice (Mus musculus), using staining with Wisteria floribunda agglutinin (WFA). Further investigations were performed on hamsters to determine the cell types that PNNs associated with in the hamster SCN, and to determine if PNN removal would change phase delays and c-Fos expression in response to a light pulse at circadian time 13. We hypothesized that PNN removal would increase the delay response as well as increase the light-induced expression of c-Fos in the SCN. Our findings show that mice do not show WFA staining in the SCN, while rats show light staining in the central SCN core and hamsters show staining through the whole SCN. In the hamsters, PNNs seem to associate most highly with AVP and CalB, with a line analysis in the SCN core showing greater PNN intensity over the CalB region but an ROD analysis showing a nonsignificant difference between CalB, VIP and GRP regions. Finally, PNN removal increased the hamsters’ response to a phase delaying light pulse, but did not increase the c-Fos response. The work from this thesis shows that there are vast species differences in PNN expression in the SCN and helps support the hypothesis that PNNs may help limit the photic response of the circadian system.
Generation of quasi-periodic waves and flows in the solar atmosphere by oscillatory reconnection
Creators: name: McLaughlin, J. A.
name: Verth, G.
name: Fedun, V.
name: Erdélyi, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the long-term evolution of an initially buoyant magnetic flux tube emerging into a gravitationally-stratified coronal hole environment and report on the resulting oscillations and outflows. We perform 2.5D nonlinear numerical simulations, generalizing the models of McLaughlin et al. (2009) and Murray et al. (2009). We find that the physical mechanism of oscillatory reconnection naturally generates quasi-periodic vertical outflows, with a transverse/swaying aspect. The vertical outflows consist of both a periodic aspect and evidence of a positively-directed flow. The speed of the vertical outflow (20-60 km/s) is comparable to those reported in the observational literature. We also perform a parametric study varying the magnetic strength of the buoyant flux tube and find a range of associated periodicities: 1.75-3.5 min. Thus, the mechanism of oscillatory reconnection may provide a physical explanation to some of the high-speed, quasi-periodic, transverse outflows/jets recently reported by a multitude of authors and instruments.
description: 10 pages, 8 figures
Arthur Kill Oil Discharge Study Vol. II: Appendices
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1991

description: This document, Volume II, represents several appendices for the following procedures of analysis: A: Catalog of Historical Sampling Programs B: Property Ownership Listing C: Expert Information Systems Report (Preparation of Digital Maps)D: Sediment Coring StationsE: Manomet Bird Observatory Report F: Dr. Joanna Burger ReportG: QA/QC Procedures
The Role of Vesicular Zinc in Modulating Cell Proliferation and Survival in the Developing Hippocampus
Creators: name: Fu, Selena
Publisher: name: Arts
Year: 2022
Subjects: subject: Zinc
subject: ZnT3
subject: Neurogenesis
subject: Hippocampus
subject: Development
subject: Neuroscience

description: In the brain, vesicular zinc, which refers to a subset of zinc that is sequestered into synaptic vesicles by zinc transporter 3 (ZnT3), has extensive effects in neuronal signaling and modulation. Vesicular zinc-focused research has mainly been directed to its role in the hippocampus, particularly in adult neurogenesis. However, whether vesicular zinc is involved in modulating neurogenesis during the early postnatal period has been less studied. To assess whether vesicular zinc plays a role in early developmental hippocampal neurogenesis, we used ZnT3 knockout (KO) mice, which lack ZnT3 and thus vesicular zinc, to evaluate cell proliferation at three different developmental age points, and the survival of these cells into adulthood. Our primary finding was that male ZnT3 KO mice exhibited lower rates of cell proliferation at P14, but higher numbers of these cells were retained to P60. Additionally, male and female ZnT3 KO mice retained a greater number of cells labelled on P6. These findings suggest that loss of vesicular zinc affects normal cell proliferation and cell survival at different age points during postnatal development. Additionally, we found sex-dependent differences whereby male mice showed higher levels of cell proliferation at P28, as well as higher levels of cell retention for P14-labelled cells, compared to female mice. There were also significant effects of age on cell proliferation and survival. Collectively, our findings offer novel insights into a unique role for vesicular zinc in the modulation of neurogenesis and cell survival during early postnatal development and highlight prominent sex- and age-dependent differences.
Using a Single inertial measurement unit to measure the knee flexion angle at touchdown in side cutting movements
Creators: name: Malagalage Don, Ishan Chathuranga
Publisher: name: Kinesiology
Year: 2022
Subjects: subject: ACL
subject: Injury
subject: ACL Injury
subject: Single IMU
subject: side cutting
subject: anterior cruciate ligament
subject: ACL injury prediction
subject: Wearable Technology
subject: electronic textiles
subject: machine learning
subject: knee flexion angle
subject: touchdown
subject: video motion capture
subject: Vicon
subject: Python
subject: inertial measurement unit
subject: Joint Angle
subject: Knee
subject: Mixture of experts
subject: Health Care Management
subject: Occupational Health and Safety
subject: Rehabilitation and Therapy
subject: Chemistry--Analytical
subject: Statistics
subject: FOS: Mathematics
subject: Artificial Intelligence
subject: Engineering--Biomedical
subject: Engineering--Electronics and Electrical
subject: Engineering--Mechanical
subject: Textile Technology
subject: FOS: Materials engineering

description: Joint angles can be an important measure in investigating sport-related injuries as well as in rehabilitation studies. Even though previous researchers have investigated using inertial measurement units to calculate joint angles, only a few studies can be found that were conducted using a single inertial measurement unit (IMU) to measure the joint angles. Furthermore, there have been a few previous studies that used a single IMU sensor to monitor the behavior of the knee joint angle for specific rehabilitation exercises, but not for more complex sports-related movements like side cutting. Hence, this study focused on validating a single IMU sensor and identifying the best placement to position it between the shank and thigh to measure the knee flexion angle at touchdown during side cutting. Fifty subjects were employed for this study and each person was asked to perform 60 leftwards side cuts. The first 20 side cuts were at 90 degrees, the second 20 were at 45 degrees, and the rest were at various angles between the running line and 90 degrees. Data were collected using 12 IMU sensors placed on the right thigh and shank, as well as a Vicon video motion capture system. Random Forest Regression and Gradient Boosting Regression machine learning algorithms were applied to the IMU data. According to the results, the thigh is the best location for a single IMU sensor, and the knee flexion angle at touchdown can be measured with an IMU sensor placed on the thigh, with a mean Coefficient of determination of 0.91 (SD = 0.01), mean absolute error of 1.93 (SD = 0.12), and mean absolute percentage error of 0.08 (SD = 0.06). The results of this study show that a single IMU sensor can be used to successfully measure knee flexion angles at touchdown during side cutting. This finding could aid in the development of more compact and convenient IMU-based joint angle measurement devices in the future.
The effect of Obesity on the Outcome of Total Knee Replacement (TKR).
Creators: name: AlOmran, Abdallah
Publisher: name: figshare
Year: 2022
Subjects: Animal structure and function
Comparative physiology
Orthopaedics

description: Effect of obesity on Total Knee arthroplasty Background and Objective: The objective of this study was to look for the outcome of TKR in obese individuals. Methods: The data of all patients who had undergone primary TKR between 2005 and 2015 were collected from the QuadruMed Patient Care System and crosschecked with the operating room. The biometric data of age, gender, weight and postoperative follow up, any complications were collected from the medical charts. Patients were classified as per the BMI (Body Mass Index). BMI is classified as per the WHO classification of 2000 Results Two hundred and four patients fulfilled the criteria for inclusion. The demographic data is given in Table II. The average age 59.8±9.3 years. Right side was operated in 103 and left in 101 patients. The average BMI was 35.88±7.47 (Range 21.95-54.78); mean duration of surgery was 163.37±29.9 (Range 88-250) minutes. The range of follow up was 5-14 years with the average of 7.49±2.56 years. There were 18 (8.8%) complications. One hundred and three (50.5%) of the patients belonged to Class II Obesity (BMI ≥36Kg/M2). Between class II obesity and Class III obesity (BMI ≥41Kg/M2, the later had 94.4% of the complications. The level of satisfaction was similar in all the groups at 80%. High BMI and longer duration of surgery were important and statistically significant risk factors (p <0.0001 and <0.009) for complications during TKA. Post operative data on VAS, Modified Knee Scoring Score and WOMAC grading, showing low scores of all the assessment in the patients with higher BMI. Conclusions: Our analysis shows that our patients with Class III obesity had over 90% of the complications and we believe that patients in this BMI range should seek ways to reduce their body weight to avoid complications and long-term morbidity.
Additional file 1: of N6-methyldeoxyadenosine directs nucleosome positioning in Tetrahymena DNA
Creators: name: Luo, Guan-Zheng
name: Hao, Ziyang
name: Luo, Liangzhi
name: Shen, Mingren
name: Sparvoli, Daniela
name: Zheng, Yuqing
name: Zhang, Zijie
name: Weng, Xiaocheng
name: Chen, Kai
name: Cui, Qiang
name: Turkewitz, Aaron
name: He, Chuan
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Figure S1. Preferred sequence motifs for Tetrahymena 6mA sites. Figure S2. Agarose gel of MNase digested nuclei. Figure S3. Nucleosome assembly favors 6mA-free regions in vitro. Figure S4. Changes of mean value after 6mA modification in the intra-base pair (A-F) and inter-base pair (G-L) parameters as a function of distance from the center of the modification site. Figure S5. Changes of standard deviation (s.d.) after 6mA modification in the intra-base pair (A-F) and inter-base pair (G-L) parameters as a function of distance from the center of AT. Figure S6. Multiple sequence alignment and phylogenetic distribution analysis of MTA70 family. Figure S7. Knockout of two methyltransferases in Tarahymena and in vitro methylation activity characterization of methytransferaseTAMT-1. Figure S8. Effects of tamt-1 knockout. (DOC 11096 kb)
Single wall carbon nanotubes as coherent plasmon generators
Creators: name: Bondarev, I. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The possibility of low-energy surface plasmon amplification by optically excited excitons in small-diameter single wall carbon nanotubes is theoretically demonstrated. The nonradiative exciton-plasmon energy transfer causes the buildup of the macroscopic population numbers of coherent localized surface plasmons associated with high-intensity coherent local fields formed at nanoscale throughout the nanotube surface. These strong local fields can be used in a variety of new optoelectronic applications of carbon nanotubes, including near-field nonlinear-optical probing and sensing, optical switching, enhanced electromagnetic absorption, and materials nanoscale modification.
description: 2nd version: 7 pages, 4 figures; 1 appendix & 3 refs. added; 1 typo corrected
The Wasteland of Random Supergravities
Creators: name: Marsh, David
name: McAllister, Liam
name: Wrase, Timm
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that in a general \cal{N} = 1 supergravity with N \gg 1 scalar fields, an exponentially small fraction of the de Sitter critical points are metastable vacua. Taking the superpotential and Kahler potential to be random functions, we construct a random matrix model for the Hessian matrix, which is well-approximated by the sum of a Wigner matrix and two Wishart matrices. We compute the eigenvalue spectrum analytically from the free convolution of the constituent spectra and find that in typical configurations, a significant fraction of the eigenvalues are negative. Building on the Tracy-Widom law governing fluctuations of extreme eigenvalues, we determine the probability P of a large fluctuation in which all the eigenvalues become positive. Strong eigenvalue repulsion makes this extremely unlikely: we find P \propto exp(-c N^p), with c, p being constants. For generic critical points we find p \approx 1.5, while for approximately-supersymmetric critical points, p \approx 1.3. Our results have significant implications for the counting of de Sitter vacua in string theory, but the number of vacua remains vast.
description: 39 pages, 9 figures; v2: fixed typos, added refs and clarifications
Causal Inference With Non-probability Sample and Misclassified Covariate
Creators: name: Sevinc, Emir
Publisher: name: Science
Year: 2022
Subjects: subject: Statistics
subject: FOS: Mathematics

description: Causal inference refers to the study of analyzing data that is explicitly defined on a question of causality. The problems motivating many, if not most studies in social and biological sciences, tend to be causative and not associative. A well defined and systematically representative sample tends to be the base in such studies. However, sometimes a sample may result from a non-probability process. This often provides a unique challenge in estimating the probability of an individual being in the sample, and generalizing the causality conclusions made off of the non-probability samples to the target population. Additionally, due to issues such as difficulty of precise measurements and human error, certain variables may be classified incorrectly. In this thesis, we address both challenges by implementing causal inferential methods in a case where we have a main non-probability sample with response available, and a probability sample with auxiliary information only. We deal with the presence of incorrectly classified confounder in the non-probability sample only, or both samples. We examine the consequences of naively ignoring misclassification, and develop a latent-variable based method via an Expectation-Maximization algorithm to correct for the misclassified confounder. We incorporate this method with a double-robust mean estimator requiring only the correct specification of either the regression model or the non-probability sample selection model to estimate the average treatment effect. We demonstrate the effectiveness of our methodology via simulation studies, and implement it on smoking data from the Centre of Disease Control and Prevention (CDC).
Classical BV theories on manifolds with boundary
Creators: name: Cattaneo, Aberto S.
name: Mnev, Pavel
name: Reshetikhin, Nicolai
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we extend the classical BV framework to gauge theories on spacetime manifolds with boundary. In particular, we connect the BV construction in the bulk with the BFV construction on the boundary and we develop its extension to strata of higher codimension in the case of manifolds with corners. We present several examples including electrodynamics, Yang-Mills theory and topological field theories coming from the AKSZ construction, in particular, the Chern-Simons theory, the $BF$ theory, and the Poisson sigma model. This paper is the first step towards developing the perturbative quantization of such theories on manifolds with boundary in a way consistent with gluing.
description: The second version has many typos corrected, references added. Some typos are probably still there, in particular, signs in examples. In the third version more typoes are corrected and the exposition is slightly changed
Quantum discord as a resource in quantum communication
Creators: name: Madhok, Vaibhav
name: Datta, Animesh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As quantum technologies move from the issues of principle to those of practice, it is important to understand the limitations on attaining tangible quantum advantages. In the realm of quantum communication, quantum discord captures the damaging effects of a decoherent environment. This is a consequence of quantum discord quantifying the advantage of quantum coherence in quantum communication. This establishes quantum discord as a resource for quantum communication processes. We discuss this progress, which derives a quantitative relation between the yield of the fully quantum Slepian-Wolf protocol in the presence of noise and the quantum discord of the state involved. The significance of quantum discord in noisy versions of teleportation, super-dense coding, entanglement distillation and quantum state merging are discussed. These results lead to open questions regarding the tradeoff between quantum entanglement and discord in choosing the optimal quantum states for attaining palpable quantum advantages in noisy quantum protocols.
description: 9 pages, no figures. Published version
Career Decision-Making Processes and Cultural Perspectives from East-Asian Counselling Psychologists in Canada
Creators: name: Maria, Kim
Publisher: name: Werklund School of Education
Year: 2022
Subjects: subject: Equity, diversity, and inclusion
subject: East Asian
subject: Career development
subject: Cultural influences
subject: Intersectionality research
subject: Qualitative research
subject: Educational Psychology

description: This study explores the career decision-making processes of East Asian psychologists in Canada, documents their perspective on cultural competency education at the graduate level, and discuss implications for recruiting and training future counselling psychologists to better meet the mental health needs of East Asian communities and individuals. This study is a qualitative research based on semi-structured interviews with 10 participants in Canada: five practicing counselling psychologists and five counselling psychology graduate students, all from East Asian backgrounds. Through a qualitative thematic analysis, salient themes revolving around participants’ career decision-making experiences, their experiences in graduate training programs, as well as their professional experiences were identified. These themes point to gaps between existing mental health practices in counselling psychology and the cultural experiences of East Asian individuals. They highlight the need for promoting diverse representation in the field of professional psychology, as well as addressing deficits in cultural competency training in counselling psychology programs in Canada. This research provides a unique perspective from a group of minority psychologists regarding ways to enhance the recruiting and training psychologists from more diverse cultural backgrounds to promote equity, diversity, and inclusiveness in the field of counselling psychology.
A Comparison of Online Gamblers, Offline Gamblers, and Mixed Mode Gamblers on Gambling and Substance Use
Creators: name: Slack, Braydon
Publisher: name: Arts
Year: 2022
Subjects: subject: gambling
subject: substance use
subject: Education--Social Sciences
subject: Psychology--Behavioral
subject: Psychology--Cognitive
subject: Psychology--Experimental

description: The rise in online gambling has led to greater research focus being directed toward the relationship between gambling modality and gambling behaviour. Such attention is warranted, given the significant increase in people turning to online gambling. It is currently known that mixed-mode gamblers (i.e., those who gamble online and offline) demonstrate the highest rate of disordered gambling and gambling frequency. Alcohol use has also been shown to be higher in mixed-mode gamblers, which presents a concern given the effects of alcohol on gambling behaviour. Further, mental health concerns have been shown to differ across gambling modalities. While research has begun to investigate gambling modality, more studies are required to better understand the relationship between gambling modality, substance use, and gambling behaviour. The present study explored the relationship between gambling modality, gambling behaviour, and substance use outcomes in greater depth. Specifically, 303 online, mixed-mode, and offline gamblers were surveyed on patterns of substance use, mental health concerns, and gambling severity, behaviour, and motives. Exploratory analyses were also conducted to investigate the role of COVID-19 in self-reported migration to online gambling. It was found that mixed-mode and online gambling are associated with greater gambling severity, frequency, and substance use. Further, scores on a gambling motives questionnaire were found to differ across gambling modality. Finally, results indicate that the COVID-19 pandemic influenced gambling behaviour, such that many participants self-reported migrating to online gambling. Overall, the results of this study suggest that a relationship exists between gambling modality, substance use, and gambling behaviour.
Quantitative and Qualitative Evaluation of a Novel Remote Actuation System versus Traditional Designs
Creators: name: Irwin, Alexander
Publisher: name: Schulich School of Engineering
Year: 2022
Subjects: subject: actuator
subject: comparative testing
subject: Engineering--Mechanical
subject: Robotics

description: Remote actuation systems (RAS) are used in robot design to relocate actuators away from joints. Several such RAS have been investigated by researchers, including pneumatic and hydraulic cylinders, cable-pulley systems, and flexible Bowden cables. However, testing of these systems is often not comparative and is focused on specific metrics without consideration of overall robot performance. The purpose of this research is to compare the performance of a novel RAS called the Fluid-cable transmission (FCT) with traditional RAS consisting of push-pull cables and conventional hydraulic and pneumatic cylinders. The static friction and stiffness of these RAS are compared for a range of bend angles, fluids, and operating pressures. We also perform qualitative testing by developing a hand controller and robot linked by an RAS. The interface is designed so that the RAS is interchangeable, allowing direct comparison of different RAS designs. A human operator uses the interface to complete a task, and the relative accuracy and subjective experience is compared for the RAS tested. The FCT is found to have lower static friction than all other tested RAS, higher stiffness than pneumatic cylinders, and comparable task performance to all tested RAS. Unique characteristics of the FCT, limitations of the testing system, and recommendations for future work are discussed.
MPEC 2025-C123 : 2023 BW7
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Computability and analysis: the legacy of Alan Turing
Creators: name: Avigad, Jeremy
name: Brattka, Vasco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We discuss the legacy of Alan Turing and his impact on computability and analysis.
description: 49 pages
Socio-Economic Equity in Neighbourhood Built Environments and Physical Activity
Creators: name: Christie, Chelsea Desirée
Publisher: name: Cumming School of Medicine
Year: 2022
Subjects: subject: Built Environment
subject: Physical Activity
subject: Socio-economic Status
subject: Epidemiology
subject: Public Health

description: Despite well-established health benefits, most adults in Canada do not engage in sufficient physical activity to meet physical activity recommendations. Neighbourhood built environment characteristics, such as pedestrian connectivity, population density, and land use mix are consistently found to be positively associated with physical activity. However, much of this evidence has been derived from studies with samples of adults with higher socioeconomic status (SES). It remains unclear whether similar associations between neighbourhood built environments and physical activity exist amongst adults with lower SES. Furthermore, there is little evidence regarding the extent to which access to physical activity-supportive neighbourhood built environments is equitable across SES groups. The three studies presented in this thesis address these knowledge gaps. The aim of this research was to increase understanding about socioeconomic equity in the associations between neighbourhood built environments and physical activity. The first study involved a systematic review of Canadian research and found that neighbourhood built environment characteristics, such as greenness, density of destinations, and overall walkability were positively associated with physical activity among adults with low SES. The second study included cross-sectional and longitudinal analyses of Alberta’s Tomorrow Project data and found that associations between neighbourhood built environments and walking were similar across SES groups. The third study included a cross-sectional analysis of national data from the Canadian Active Living Index and the Canadian Census and found that associations between neighbourhood walkability and home values were conditional on city size and the proportion of detached homes within the neighbourhood. For small and medium sized cities, neighbourhood-level home values tended to be approximately the same (or less expensive) across neighbourhood walkability levels. Within larger cities, however, home values were higher in neighbourhoods with higher walkability. Thus, interventions to increase the amount of affordable housing in high walkable neighbourhoods may be needed in larger cities. Findings from this thesis suggest that modifying existing neighbourhood built environments or building new neighbourhoods to be more supportive of physical activity may be effective ways to increase population-level physical activity without exacerbating socioeconomic disparities in physical activity.
The distribution of volatile elements during rocky planet formation
Creators: name: Suer, Terry-Ann
name: Jackson, Colin
name: Grewal, Damanveer S.
name: Dalou, Celia
name: Lichtenberg, Tim
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Core segregation and atmosphere formation are two of the major processes that redistribute the volatile elements-hydrogen (H), carbon (C), nitrogen (N), and sulfur (S)-in and around rocky planets during their formation. The volatile elements by definition accumulate in gaseous reservoirs and form atmospheres. However, under conditions of early planet formation, these elements can also behave as siderophiles (i.e., iron-loving) and become concentrated in core-forming metals. Current models of core formation suggest that metal-silicate reactions occurred over a wide pressure, temperature, and compositional space to ultimately impose the chemistries of the cores and silicate portions of rocky planets. Additionally, the solubilities of volatile elements in magmas determine their transfer between the planetary interiors and atmospheres, which has recently come into sharper focus in the context of highly irradiated, potentially molten exoplanets. Recently, there has been a significant push to experimentally investigate the metal-silicate and magma-gas exchange coefficients for volatile elements over a wide range of conditions relevant to rocky planet formation. Qualitatively, results from the metal-silicate partitioning studies suggest that cores of rocky planets could be major reservoirs of the volatile elements though significant amounts will remain in mantles. Results from solubility studies imply that under oxidizing conditions, most H and S are sequestered in the magma ocean, while most N is outgassed to the atmosphere, and C is nearly equally distributed between the atmosphere and the interior. Under reducing conditions, nearly all N dissolves in the magma ocean, the atmosphere becomes the dominant C reservoir, while H becomes more equally distributed between the interior and the atmosphere, and S remains dominantly in the interior.
POU class 2 homeobox associating factor 1 (POU2AF1) participates in abdominal aortic aneurysm enlargement based on integrated bioinformatics analysis
Creators: name: Meng, Jinze
name: Wen, Hao
name: Li, Xintong
name: Luan, Boyang
name: Gong, Shiqiang
name: Wen, Jie
name: Wang, Yifei
name: Wang, Lei
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified

description: Abdominal aortic aneurysm (AAA) is life-threatening, its natural course is progressively sac expansion and rupture. Elegant studies have been conducted to investigate the molecular markers associated with AAA growth and expansion, this topic however, still needs to be further elucidated. This study aimed to identify potential genes for AAA growth and expansion based on comprehensive bioinformatics approaches. Firstly, 29 up-regulated genes were identified through DEGs analysis between large AAA and small AAA in GSE57691. Secondly, signed WGCNA analysis was conducted based on GSE57691 and the green module was found to exhibit the topmost correlation with large AAA as well as AAA, 133 WGCNA hub genes were further identified. Merged gene set including 29 up-regulated DEGs and 858 green module genes was subjected to constructing a PPI network where 195 PPI hub genes were identified. Subsequently, 4 crucial genes including POU2AF1, FCRLA, CD79B, HLA-DOB were recognized by Venn plot. In addition, by using GSE7084 and GSE98278 for verification, POU2AF1 showed potential diagnostic value between AAA and normal groups, and exhibited a significant higher expression level in large AAA samples compared with small AAA samples. Furthermore, immunohistochemistry results indicated up-regulation of POU2AF1 in large AAA samples than small AAA samples, which implies POU2AF1 may be a key regulator in AAA enlargement and growth. In summary, this study indicates that POU2AF1 has great predictive value for the expansion of AAA, and may contribute to the further exploration of pathogenesis and progression of AAA.
Estimating the sensitivity of wide-parameter-space searches for gravitational-wave pulsars
Creators: name: Wette, Karl
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper presents an in-depth study of how to estimate the sensitivity of searches for gravitational-wave pulsars -- rapidly-rotating neutron stars which emit quasi-sinusoidal gravitational waves. It is particularly concerned with searches over a wide range of possible source parameters, such as searches over the entire sky and broad frequency bands. Traditional approaches to estimating the sensitivity of such searches use either computationally-expensive Monte Carlo simulations, or analytic methods which sacrifice accuracy by making an unphysical assumption about the population of sources being searched for. This paper develops a new, analytic method of estimating search sensitivity which does not rely upon this unphysical assumption. Unlike previous analytic methods, the new method accurately predicts the sensitivity obtained using Monte Carlo simulations, while avoiding their computational expense. The change in estimated sensitivity due to properties of the search template bank, and the geographic configuration of the gravitational wave detector network, are also investigated.
description: 16 figures, 2 tables, REVTeX 4.1; minor typos corrected from v2, updated references
Are Percolation Transitions always Sharpened by Making Networks Interdependent?
Creators: name: Son, Seung-Woo
name: Grassberger, Peter
name: Paczuski, Maya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study a model for coupled networks introduced recently by Buldyrev et al., Nature 464, 1025 (2010), where each node has to be connected to others via two types of links to be viable. Removing a critical fraction of nodes leads to a percolation transition that has been claimed to be more abrupt than that for uncoupled networks. Indeed, it was found to be discontinuous in all cases studied. Using an efficient new algorithm we verify that the transition is discontinuous for coupled Erdos-Renyi networks, but find it to be continuous for fully interdependent diluted lattices. In 2 and 3 dimension, the order parameter exponent $β$ is larger than in ordinary percolation, showing that the transition is less sharp, i.e. further from discontinuity, than for isolated networks. Possible consequences for spatially embedded networks are discussed.
description: 4 pages, including 6 figures; version 3 includes supplementary material (including 9 figures)
Methodological Analysis of an Improved Gluten Quantitation Aptamer-based Biosensor
Creators: name: Kuri Martinez, Juan Carlos
Publisher: name: Schulich School of Engineering
Year: 2022
Subjects: subject: Aptamer
subject: Fluorescence
subject: FRET
subject: Gluten sensor
subject: 33-mer peptide
subject: Aptasensor
subject: Graphene oxide
subject: ELISA
subject: Education--Health
subject: Education--Technology
subject: Food Science and Technology
subject: Biochemistry
subject: Engineering--Biomedical
subject: Engineering--Chemical

description: Fluorescence resonance energy transfer based aptamer are currently being studied in many research groups due to their potential contribution as an alternative gluten standard for gluten- quantitation. The current gold standard withholds critical limitations due to the nature of the system, hence this aptamer-based sensor (or aptasensor for short) application represents one of the alternatives; yet, drawbacks such as low signal-to-noise ratio and reliability are in the scope of research groups aiming to overcome them. In this study, multiple variations of the protocol are assessed based on correctly classifying food samples as their actual concentration of gluten, this is coined as the accuracy of the biosensor. The study also aims to overcome the current limitation of the gold standard in fermented samples by including soy sauce and malt vinegar in the tests. And different additives aiming to help overcoming the limitation were implemented into the protocol and assessed. This approach allowed the biosensor to classify the products with 98.28% of accuracy, and 0% of error in classifying gluten-rich products (false-negatives) within the first 3 days of bioassay preparation; yet, this bioassay needs to be studied further as only 18 different off-the-shelf products were tested (over 800 tests in total). Additionally, after the first week, false-negatives increased to around 5% and remained that way until the end of the first month. The cause of this relies mostly on the decomposition of the conjugate reduced graphene oxide and polyethylene glycol that are implemented in the system. This implies that further research aiming solely at additives or alternative reagents that increase the lifespan or stability of the conjugate would augment the overall performance.
Life's Chirality From Prebiotic Environments
Creators: name: Gleiser, Marcelo
name: Walker, Sara Imari
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biomolecules (q-bio.BM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A key open question in the study of life is the origin of biomolecular homochirality: almost every life-form on Earth has exclusively levorotary amino acids and dextrorotary sugars. Will the same handedness be preferred if life is found elsewhere? We review some of the pertinent literature and discuss recent results suggesting that life's homochirality resulted from sequential chiral symmetry breaking triggered by environmental events. In one scenario, autocatalytic prebiotic reactions undergo stochastic fluctuations due to environmental disturbances. In another, chiral-selective polymerization reaction rates influenced by environmental effects lead to substantial chiral excess even in the absence of autocatalysis. Applying these arguments to other potentially life-bearing platforms has implications to the search for extraterrestrial life: we predict that a statistically representative sampling of extraterrestrial stereochemistry will be racemic (chirally neutral) on average.
description: 12 pages, 7 figures. Plenary talk delivered at the S\~ao Paulo Advanced School of Astrobiology, S\~ao Paulo, December 2011. In press, Int. J. Astrobio. Added small clarification in conclusion section