cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
DMSO increases efficiency of genome editing at two non-coding loci
Creators: name: Stratigopoulos, George
name: De Rosa, Maria Caterina
name: LeDuc, Charles A.
name: Leibel, Rudolph L.
name: Doege, Claudia A.
Publisher: name: Columbia University
Year: 2018
Subjects: CRISPR (Genetics)
Gene editing
Molecular genetics
Dimethyl sulfoxide

description: Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/CRISPR-associated protein-9 (Cas9) has become the tool of choice for genome editing. Despite the fact that it has evolved as a highly efficient means to edit/replace coding sequence, CRISPR/Cas9 efficiency for “clean” editing of non-coding DNA remains low. We set out to introduce a single base-pair substitution in two intronic SNPs at the FTO locus without altering nearby non-coding sequence. Substitution efficiency increased up to 10-fold by treatment of human embryonic stem cells (ESC) with non-toxic levels of DMSO (1%) before CRISPR/Cas9 delivery. Treatment with DMSO did not result in CRISPR/Cas9 off-target effects or compromise the chromosomal stability of the ESC. Twenty-four hour treatment of human ESC with DMSO before CRISPR/Cas9 delivery may prove a simple means to increase editing efficiency of non-coding DNA without incorporation of undesirable mutations.
title: Integrating Queue Dynamics into the Trip-Based Macroscopic Fundamental Diagram
Creators: name: Hassanin, Omar
Publisher: name: Schulich School of Engineering
Year: 2025
Subjects: subject: Trip-based Macroscopic Fundamental Diagram
subject: MFD
subject: Connected and Automated Vehicles
subject: CAVs
subject: Engineering--Civil

description: Macroscopic traffic models provide a simplified framework for analyzing and controlling traffic at the network level. Among these models, the trip-based macroscopic fundamental diagram (MFD), or generalized bathtub model, effectively captures inflow, accumulation, and outflow while considering trip lengths and travel times, particularly under rapidly changing traffic conditions. This study addresses a gap in the trip-based MFD, which lacks queuing dynamics under downstream restrictions, as its original outflow function assumes unrestricted flow. To resolve this, the research incorporates downstream queuing dynamics, accounting for waiting times and their changes over time. The study also examines the impact of connected and automated vehicles (CAVs) on traffic dynamics through numerical simulations. Assuming that CAVs improve the MFD shape and bottleneck capacity, a sensitivity analysis was conducted for various market penetration rates (MPRs). Key findings include: 1) Average upstream waiting time decreased from 130 seconds to 0 at 60% MPR; 2) Average reservoir travel time reduced by 60% (570 to 230 seconds) at 100% MPR; 3) Average downstream waiting time initially increased by 25% at 70% MPR but fell by 12.5% at 100% MPR; and 4) Average total trip time (TTT) dropped by 61%, from 780 to 300 seconds. The results show earlier commuter exits, shifting the peak time (𝑡𝑝) of TTT. However, as 𝑡𝑝 depends on external factors (e.g., work schedules), the inflow demand pattern was adjusted to maintain 𝑡𝑝 constant, revealing a 26-minute inflow peak shift at 100% MPR. Additionally, congestion duration reduced by 51%, from 96.6 to 46.6 minutes, while maximum travel time decreased by 66% (18.5 to 9.5 minutes). Lastly, previous enhancements in capacities maintained constant free-flow speed (𝑣𝑓) for safety reasons. However, when the MPR reaches 100% and there are no longer any human-driven vehicles, increasing 𝑣𝑓 no longer poses safety risks. Thus, 𝑣𝑓 can reach 21m/s instead of 15 m/s, leading to less congestion. The findings demonstrate that CAVs significantly reduce trip time and congestion but cannot alone eliminate the negative impacts of downstream bottlenecks.
Pulsations in M dwarf stars
Creators: name: Rodríguez-López, C.
name: MacDonald, J.
name: Moya, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of the first theoretical non-radial non-adiabatic pulsational study of M dwarf stellar models with masses in the range 0.1 to 0.5M_solar. We find the fundamental radial mode to be unstable due to an εmechanism caused by deuterium (D-) burning for the young 0.1 and 0.2M_solar models, by non-equilibrium He^3 burning for the 0.2 and 0.25M_solar models of 10^4Myr, and by a flux blocking mechanism for the partially convective 0.4 and 0.5M_solar models once they reach the age of 500Myr. The periods of the overstable modes excited by the D-burning are in the range 4.2 to 5.2h for the 0.1M_solar models and is of order 8.4h for the 0.2M_solar models. The periods of the modes excited by He^3 burning and flux blocking are in the range 23 to 40min. The more massive and oldest models are more promising for the observational detection of pulsations, as their ratio of instability e-folding time to age is more favourable.
description: 5 pages, 4 figures, 2 tables. Accepted for publication in MNRAS Letters on 2011 October 11 Version 2 is the accepted manuscript with changes in boldface
title: Assessing Multi-Coil Deep-learning-based MR Image Reconstruction
Creators: name: Dubljevic, Natalia
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: MRI
subject: Image Reconstruction
subject: Engineering--Biomedical
subject: Artificial Intelligence

description: Magnetic resonance (MR) imaging is a valuable non-invasive imaging technology essential for diagnostics and patient health management. However, scan times are often quite long, affecting both patient throughput and comfort. To help accelerate the process, parallel imaging uses an array of receiver coils to reduce the amount of data acquired. Recently deep learning (DL)-based MR image reconstruction has become popular as it allows for further scan acceleration. With its advent, new questions are raised regarding optimal coil design and processing strategies. This work investigates whether traditional geometric coil constraints imposed by parallel imaging can be relaxed when using DL-based reconstruction methods as compared to non-DL approaches. We also explore whether to first combine channels (coil-combined approach) to enhance model generalizability or to keep channel processing separate (all-coil approach) to fully utilize multi-channel information. Two sets of head coil profiles (8-channel and 32-channel geometries) were evaluated across three methods: a DL model, conjugate gradient SENSE (CG-SENSE), and L1-wavelet compressed sensing (CS). These methods were compared using both quantitative metrics and visual assessment as coil overlap increased. Results showed that as coil overlap increased, performance significantly decreased (p<0.001) across all methods, with the largest impact seen in CG-SENSE. DL-based reconstructions consistently outperformed their non-DL counterparts, with minimal changes in performance across coil overlap and signal-to-noise ratio (SNR). While CS demonstrated better robustness to coil overlap than CG-SENSE, it produced inferior reconstructions characterized by blurriness. Additionally, we assessed three popular DL architectures using both coil-combined and all-coil strategies on brain MR images in and out of distribution. All-coil styles slightly improved in-distribution performance, such as when reconstructing data from healthy individuals, while coil-combined designs better generalized to unseen pathological data. These findings suggest that DL-based reconstruction can produce high-quality images that are robust to coil overlap, offering the potential to relax geometric coil design constraints. Additionally, a coil-combined processing approach may be preferable when considering clinical use.
Georynus Noyes 2023
Creators: name: Noyes, John Stuart
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Georynus

description: Key to Costa Rican species of Georynus
 (Females)
 1. Sensory area of clava smaller, extending only about 0.3X along ventral surface (Fig. 417); fore wing (Fig. 419) with linea calva open near posterior wing margin and costal cell with two lines of setae on ventral surface in apical half; ovipositor about 2X as long as mid tibia; gonostylus about 2.5X as long as mid tibial spur......................................................................................................... aitne sp.nov. (p. 165)
 - Sensory area of clava larger, extending at least half way along ventral surface of clava (Fig, 425); fore wing (Fig. 426) with linea calva closed near posterior margin and costal cell with only a single line of setae on ventral surface in apical half; ovipositor about 1.5X as long as mid tibia; gonostylus about 1.5X as long as mid tibial spur...................................................................... dionysus sp.nov. (p. 167)
description: Published as part of Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), pp. 1-921 in Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) (Oxford, England) 2 (11) on page 165, DOI: 10.5281/zenodo.8074943
Quantum Machine Learning Framework for Virtual Screening in Drug Discovery: a Prospective Quantum Advantage
Creators: name: Mensa, Stefano
name: Sahin, Emre
name: Tacchino, Francesco
name: Barkoutsos, Panagiotis Kl.
name: Tavernelli, Ivano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Machine Learning (ML) for Ligand Based Virtual Screening (LB-VS) is an important in-silico tool for discovering new drugs in a faster and cost-effective manner, especially for emerging diseases such as COVID-19. In this paper, we propose a general-purpose framework combining a classical Support Vector Classifier (SVC) algorithm with quantum kernel estimation for LB-VS on real-world databases, and we argue in favor of its prospective quantum advantage. Indeed, we heuristically prove that our quantum integrated workflow can, at least in some relevant instances, provide a tangible advantage compared to state-of-art classical algorithms operating on the same datasets, showing strong dependence on target and features selection method. Finally, we test our algorithm on IBM Quantum processors using ADRB2 and COVID-19 datasets, showing that hardware simulations provide results in line with the predicted performances and can surpass classical equivalents.
description: 16 pages, 7 figures
Butis humeralis
Creators: name: Zainal Abidin, Danial Hariz
name: Lavoué, Sébastien
name: Mohd Abu Hassan Alshari, Norli Fauzani
name: Mohd. Nor, Siti Azizah
name: A. Rahim, Masazurah
name: Mohammed Akib, Noor Adelyna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Eleotridae
Butis
Butis humeralis

description: Butis humeralis (Valenciennes, 1873) Figure 3K Material examined. MALAYSIA • 1, 125 mm TL; Kedah State, Kampung Batu Lintang, Pompang Batu Lintang; 05.625°N, 100.394°E; 17 Jul. 2019; Sébastien Lavoué leg.; USMFC (33) 00001. • 5, 87– 117 mm TL; Kedah State, Kampung Batu Lintang, Pompang Batu Lintang; 05.624°N, 100.395°E; 19 Apr. 2019; Danial H. Zainal Abidin, Norli F.M.A.H. Alshari leg.; USMFC (33) 00002. • 2, 109– 112 mm TL; Kedah State, Kampung Batu Lintang, Pompang Batu Lintang; 05.624°N, 100.395°E; 19 Apr. 2019; Danial H. Zainal Abidin, Norli F.M.A.H. Alshari leg.; USMFC (33) 00004.
description: Published as part of Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, pp. 601-631 in Check List 17 (2) on page 617, DOI: 10.15560/17.2.601
South Asian immigrant women’s access to and experiences with breast and cervical cancer screening services in Canada
Creators: name: Habib, Sanzida Zohra
Publisher: name: University of British Columbia
Year: 2012

description: A qualitative feminist study, informed by social constructionist epistemology, antiracist theories and intersectionality perspectives, was conducted in order to understand South Asian immigrant women’s access to and experiences with breast and cervical cancer screening services in Canada. Particular attention was paid to the wider context of their lives and their experiences of migration, resettlement, integration and general access to the Canadian healthcare system. The study also explored how the broader systems, structures and policies in Canadian society shape South Asian immigrant women’s participation in and access to cancer screening services. Thirty one South Asian immigrant women were interviewed in individual, couple and group settings in greater Vancouver. Research findings indicated that women’s age, length of stay since immigration, educational and generational status, not/having a family history or symptoms impact their use or lack of use of cancer screening services; but these factors also intersect in complex ways with various systemic and structural issues including not having a recommendation from physicians, women’s financial instability, access to income, employment, settlement services and community resources, levels of socioeconomic integration and familiarity with the Canadian healthcare system, and gender roles and responsibilities. Women’s narratives also showed that the immigration factor amplify the intersecting forms of inequities and the social determinants of health such as gender, class, poverty, racialization and discrimination, and affect women’s physical and mental health and access to healthcare services, cancer screening being one of them. An intersectional analysis revealed that the gendered and racialized immigration and integration policies, multicultural discourses and neoliberal ideologies and practices intersect to situate South Asian immigrant women into racialized and disadvantaged situations as the ‘other’ wherein access to preventive cancer screening services becomes especially challenging. South Asian women’s access to cancer screening and other healthcare services needs to be understood beyond the attempts to know their cultural health beliefs and practices, and beyond the neoliberal ideas of ‘self-care,’ ‘individual responsibility,’ ‘patient empowerment,’ and ‘culturally sensitive care.’ Also, equitable access to health care cannot be ensured without resisting these women’s racialized position as the ‘other’ and addressing the social, political, historical, material and structural inequities in Canadian society.
Hairy black hole entropy and the role of solitons in three dimensions
Creators: name: Correa, Francisco
name: Martinez, Cristian
name: Troncoso, Ricardo
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Scalar fields minimally coupled to General Relativity in three dimensions are considered. For certain families of self-interaction potentials, new exact solutions describing solitons and hairy black holes are found. It is shown that they fit within a relaxed set of asymptotically AdS boundary conditions, whose asymptotic symmetry group coincides with the one for pure gravity and its canonical realization possesses the standard central extension. Solitons are devoid of integration constants and their (negative) mass, fixed and determined by nontrivial functions of the self-interaction couplings, is shown to be bounded from below by the mass of AdS spacetime. Remarkably, assuming that a soliton corresponds to the ground state of the sector of the theory for which the scalar field is switched on, the semiclassical entropy of the corresponding hairy black hole is exactly reproduced from Cardy formula once nonvanishing lowest eigenvalues of the Virasoro operators are taking into account, being precisely given by the ones associated to the soliton. This provides further evidence about the robustness of previous results, for which the ground state energy instead of the central charge appears to play the leading role in order to reproduce the hairy black hole entropy from a microscopic counting.
description: Version accepted for publication in JHEP
title: Robust Sketch Orchestration in Programmable Networks
Creators: name: Erfanmanesh, Zeinab
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: Network monitoring
subject: Optimization
subject: Dynamic Flow Rates
subject: Computer Science

description: As modern networks grow in scale and speed, sketch-based algorithms have become essential for achieving accurate and low-overhead network monitoring. These algorithms enable efficient data summarization, allowing network operators to monitor traffic patterns without placing significant computational or memory demands on network devices. However, existing solutions for sketch-based network monitoring assume that traffic rates are fixed and known in advance. This assumption, while simplifying the monitoring process, fails to reflect the dynamic nature of real-world traffic, leading to degraded monitoring accuracy. In this thesis, we propose a novel approach for coordinated sketch placement on programmable network devices, such as switches and SmartNICs, without relying on the fixed traffic rate assumption. Instead, we consider scenarios where only statistical information about traffic rates, such as their means and variances, is available. To this end, we show that the problem can be formulated as an integer second-order cone program (ISOCP). Given the computational challenges of solving such optimization problems, especially in large-scale networks, we introduce an approximation technique to transform the problem into a linear formulation. This approximation not only reduces computational complexity but also enables efficient solutions for large instances of the problem using standard optimization tools. Our evaluations, conducted with realistic workloads and network configurations, demonstrate that, by accounting for dynamic traffic rates, our approach can increase monitoring accuracy in the network by up to 2× across different workloads compared to the existing solutions that do not explicitly consider these dynamics.
Additional file 13 of Physiological, metabolomic, and transcriptomic reveal metabolic pathway alterations in Gymnocypris przewalskii due to cold exposure
Creators: name: Liu, Sijia
name: Tian, Fei
name: Qi, Delin
name: Qi, Hongfang
name: Wang, Yang
name: Xu, Shixiao
name: Zhao, Kai
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 13.
Quantum many-body systems in thermal equilibrium
Creators: name: Alhambra, Álvaro M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The thermal or equilibrium ensemble is one of the most ubiquitous states of matter. For models comprised of many locally interacting quantum particles, it describes a wide range of physical situations, relevant to condensed matter physics, high energy physics, quantum chemistry and quantum computing, among others. We give a pedagogical overview of some of the most important universal features about the physics and complexity of these states, which have the locality of the Hamiltonian at its core. We focus on mathematically rigorous statements, many of them inspired by ideas and tools from quantum information theory. These include bounds on their correlations, the form of the subsystems, various statistical properties, and the performance of classical and quantum algorithms. We also include a summary of a few of the most important technical tools, as well as some self-contained proofs.
description: 32 Pages 9 Figures. Updated version with updated sections and new proofs. Parts of these notes were the basis for a lecture series within the "Quantum Thermodynamics Summer School 2021" during August 2021 in Les Diablerets, Switzerland
Wave-Driven Mass Loss in the Last Year of Stellar Evolution: Setting the Stage for the Most Luminous Core-Collapse Supernovae
Creators: name: Quataert, Eliot
name: Shiode, Josh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: During the late stages of stellar evolution in massive stars (C fusion and later), the fusion luminosity in the core of the star exceeds the star's Eddington luminosity. This can drive vigorous convective motions which in turn excite internal gravity waves. The local wave energy flux excited by convection is itself well above Eddington during the last few years in the life of the star. We suggest that an interesting fraction of the energy in gravity waves can, in some cases, convert into sound waves as the gravity waves propagate (tunnel) towards the stellar surface. The subsequent dissipation of the sound waves can unbind up to several $M_\odot$ of the stellar envelope. This wave-driven mass loss can explain the existence of extremely large stellar mass loss rates just prior to core-collapse, which are inferred via circumstellar interaction in some core-collapse supernovae (e.g., SNe 2006gy and PTF 09uj, and even Type IIn supernovae more generally). An outstanding question is understanding what stellar parameters (mass, rotation, metallicity, age) are the most susceptible to wave-driven mass loss. This depends on the precise internal structure of massive stars and the power-spectrum of internal gravity waves excited by stellar convection.
description: Version accepted to MNRAS
A mixed-mode phase field fracture model in anisotropic rocks with consistent kinematics
Creators: name: Bryant, Eric
name: Sun, WaiChing
Publisher: name: Columbia University
Year: 2018
Subjects: Geotechnical engineering
Fracture mechanics
Rocks--Fracture
Mechanics, Applied

description: Under a pure tensile loading, cracks in brittle, isotropic, and homogeneous materials often propagate such that pure mode I kinematics are maintained at the crack tip. However, experiments performed on geo-materials, such as sedimentary rock, shale, mudstone, concrete and gypsum, often lead to the conclusion that the mode I and mode II critical fracture energies/surface energy release rates are distinctive. This distinction has great influences on the formation and propagation of wing cracks and secondary cracks from pre-existing flaws under a combination of shear and tensile or shear and compressive loadings. To capture the mixed-mode fracture propagation, a mixed-mode I/II fracture model that employs multiple critical energy release rates based on Shen and Stephansson, IJRMMS, 1993 is reformulated in a regularized phase field fracture framework. We obtain the mixed-mode driving force of the damage phase field by balancing the microforce. Meanwhile, the crack propagation direction and the corresponding kinematics modes are determined via a local fracture dissipation maximization problem. Several numerical examples that demonstrate the mode II and mixed-mode crack propagation in brittle materials are presented. Possible extensions of the model capturing degradation related to shear/compressive damage, as commonly observed in sub-surface applications and triaxial compression tests, are also discussed.
title: Building Better from LEED to Living: An Approach to Net Zero Water Management
Creators: name: Fatima, Kulsum
Publisher: name: Arts
Year: 2024
Subjects: subject: green building practices
subject: water performance gaps,
subject: net-zero water management
subject: higher education institutions (HEI)
subject: UNSDG6
subject: Architecture
subject: FOS: Civil engineering

description: In view of the increased concerns about the United Nations Sustainable Development Goals (UNSDGs), there is a need to minimize water-related challenges and maximize water security and availability through sustainable green building practices. As significant water consumers, university campuses play a crucial role in addressing water-related challenges. By focusing on water-efficient buildings to achieve net-zero water management and exploring the influence of green building practices, universities can contribute to the UNSDGs, particularly in promoting sustainable water management, climate action, and the development of resilient communities. This thesis explores the influence of green building practices on water management by comparing objectives, directives, and applications suggested by the LEED certification system and the Living Building Challenge (LBC) certification system. It aims to understand the advantages and challenges in transitioning UCalgary from LEED-guided water-efficient operations to LBC-compliant net-zero water operations. This research evaluates best practices from three design precedent sites: CIRS at the University of British Columbia, Bullitt Center with the University of Washington, and Kendeda Building at Georgia Institute of Technology. For this purpose, two evaluation frameworks are used: Performance Assessment Framework (PAF) and Water Literacy Assessment Framework (WLF). UCalgary and design precedent sites are evaluated using the PAF and WLF frameworks to identify challenges and barriers to water performance efficiency and improve water management practices. This research hopes to encourage decision-makers and practitioners at higher education institutions (HEIs) to achieve net-zero compliance as per LBC, minimize performance gaps and water-related challenges, motivate water managers to develop an operational net-zero water scenario, and incentivize water users to support this scenario by promoting good water use behaviours on HEI campuses. This research provides insights into the factors influencing the adoption of LEED and LBC at higher education institutions. It also highlights the challenges and barriers project teams involved in LEED and LBC applications face. Additionally, the research identifies problem situations related to selecting and determining water strategies for LBC compliance. The understanding gained from this research is valuable for addressing the complexities of water management and promoting the appreciation and value included in the joy and everyday understanding of water.
Butis koilomatodon
Creators: name: Zainal Abidin, Danial Hariz
name: Lavoué, Sébastien
name: Mohd Abu Hassan Alshari, Norli Fauzani
name: Mohd. Nor, Siti Azizah
name: A. Rahim, Masazurah
name: Mohammed Akib, Noor Adelyna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Eleotridae
Butis
Butis koilomatodon

description: Butis koilomatodon (Bleeker, 1849) Material examined. MALAYSIA • 1, 25 mm TL; Kedah State, Kampung Batu Lintang, Pompang Batu Lintang; 05.625°N, 100.394°E; 17 Jul. 2019; Sébastien Lavoué leg.; USMFC (33) 00013.
description: Published as part of Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, pp. 601-631 in Check List 17 (2) on page 617, DOI: 10.15560/17.2.601
Periodic orbits around areostationary points in the Martian gravity field
Creators: name: Liu, Xiaodong
name: Baoyin, Hexi
name: Ma, Xingrui
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Mathematical Physics (math-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: This study investigates the problem of areostationary orbits around Mars in the three-dimensional space. Areostationary orbits are expected to be used to establish a future telecommunication network for the exploration of Mars. However, no artificial satellites have been placed in these orbits thus far. In this paper, the characteristics of the Martian gravity field are presented, and areostationary points and their linear stability are calculated. By taking linearized solutions in the planar case as the initial guesses and utilizing the Levenberg-Marquardt method, families of periodic orbits around areostationary points are shown to exist. Short-period orbits and long-period orbits are found around linearly stable areostationary points, and only short-period orbits are found around unstable areostationary points. Vertical periodic orbits around both linearly stable and unstable areostationary points are also examined. Satellites in these periodic orbits could depart from areostationary points by a few degrees in longitude, which would facilitate observation of the Martian topography. Based on the eigenvalues of the monodromy matrix, the evolution of the stability index of periodic orbits is determined. Finally, heteroclinic orbits connecting the two unstable areostationary points are found, providing the possibility for orbital transfer with minimal energy consumption.
description: 25 pages, 10 figures, accepted for publication in Research in Astronomy and Astrophysics
title: Associations Between Socioeconomic Position and Mental Health and Mental Health Disorders Among Adults in Canada from 2005 to 2022
Creators: name: Yin, Shelly
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: Socioeconomic position
subject: Inequities
subject: Mental health
subject: Mental health disorders
subject: Trends
subject: Mental Health
subject: Epidemiology
subject: Public Health

description: Introduction: Socioeconomic position (SEP) is a fundamental determinant of mental health, often measured by income and education. Poor mental health and mental health disorders are more prevalent among adults with a lower SEP. Examining trends in associations between SEP and mental health outcomes can inform policies to reduce mental health inequities, yet these trends remain understudied. I aimed to examine (1) associations between SEP and mental health outcomes in 2022 and (2) trends in associations from 2005-2022. Methods: I used data from the Canadian Community Health Survey (2005, 2007-2022) to examine associations between SEP (annual household income, educational attainment) and mental health outcomes (fair/poor self-reported mental health (SRMH), mood disorders, anxiety disorders) among adults (≥23 years) in the ten provinces using multivariable logistic regression. I adjusted for sex, age, marital status, immigration status, race/ethnicity, and Indigenous identity and tested for modification by sex. I repeated logistic regression models for each cycle and assessed trends with random-effects meta-analysis and meta-regression. Results: In 2022, the odds of all mental health outcomes were lower with high and middle than low income and education. Associations were stronger with income than education and persisted after mutual adjustment. High income was more protective against poor/fair SRMH and mood disorders among males than females, while high education was more protective against anxiety disorders among females than males. Income and education were associated with all mental health outcomes from 2005-2022. Associations with poor/fair SRMH weakened in 2020-2022 during the COVID-19 pandemic compared to before 2020. Associations with mood disorders remained stable from 2005-2022. Trends with anxiety disorders were mixed. Conclusion: Higher income and education were associated with lower odds of adverse mental health outcomes in 2022. My study was the first to examine trends in associations and found that inequities persisted from 2005-2022. Inequities in poor/fair SRMH weakened in 2020-2022, while most inequities in mood and anxiety disorders remained stable. Policies that increase household incomes and support higher educational attainment may help reduce inequities. Future research may investigate policy responses to the COVID-19 pandemic that may have reduced certain mental health inequities in 2020-2022.
Acentrogobius caninus
Creators: name: Zainal Abidin, Danial Hariz
name: Lavoué, Sébastien
name: Mohd Abu Hassan Alshari, Norli Fauzani
name: Mohd. Nor, Siti Azizah
name: A. Rahim, Masazurah
name: Mohammed Akib, Noor Adelyna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Gobiidae
Acentrogobius
Acentrogobius caninus

description: Acentrogobius caninus (Valenciennes, 1873) Material examined. MALAYSIA • 1, 73 mm TL; Kedah State, Kampung Batu Lintang, Pompang Batu Lintang; 05.624°N, 100.395°E; 19 Apr. 2019; Danial H. Zainal Abidin, Norli F.M.A.H. Alshari leg.; USMFC (34) 00015.
description: Published as part of Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, pp. 601-631 in Check List 17 (2) on page 617, DOI: 10.15560/17.2.601
The effect of fluid resuscitation on the effective circulating volume in patients undergoing liver surgery: a post-hoc analysis of a randomized controlled trial
Creators: name: Vos, Jaap Jan
name: Kalmar, Alain F.
name: Hendriks, Herman G. D.
name: Bakker, Jan
name: Scheeren, Thomas W. L.
Publisher: name: Columbia University
Year: 2018
Subjects: Resuscitation
Hemodynamic monitoring
Critical care medicine
Liver--Surgery

description: To assess the significance of an analogue of the mean systemic filling pressure (Pmsa) and its derived variables, in providing a physiology based discrimination between responders and non-responders to fluid resuscitation during liver surgery. A post-hoc analysis of data from 30 patients undergoing major hepatic surgery was performed. Patients received 15 ml kg(-1) fluid in 30 min. Fluid responsiveness (FR) was defined as an increase of 20% or greater in cardiac index, measured by FloTrac-Vigileo((R)). Dynamic preload variables (pulse pressure variation and stroke volume variation: PPV, SVV) were recorded additionally. Pvr, the driving pressure for venous return (=Pmsa-central venous pressure) and heart performance (EH; Pvr/Pmsa) were calculated according to standard formula. Pmsa increased following fluid administration in responders (n = 18; from 13 +/- 3 to 17 +/- 4 mmHg, p < 0.01) and in non-responders (n = 12; from 14 +/- 4 to 17 +/- 4 mmHg, p < 0.01). Pvr, which was lower in responders before fluid administration (6 +/- 1 vs. 7 +/- 1 mmHg; p = 0.02), increased after fluid administration only in responders (from 6 +/- 1 to 8 +/- 1 mmHg; p < 0.01). EH only decreased in non-responders (from 0.56 +/- 0.17 to 0.45 +/- 0.12; p < 0.05). The area under the receiver operating characteristics curve of Pvr, PPV and SVV for predicting FR was 0.75, 0.73 and 0.72, respectively. Changes in Pmsa, Pvr and EH reflect changes in effective circulating volume and heart performance following fluid resuscitation, providing a physiologic discrimination between responders and non-responders. Also, Pvr predicts FR equivalently compared to PPV and SVV, and might therefore aid in predicting FR in case dynamic preload variables cannot be used.
Additional file 1 of The USP18 cysteine protease promotes HBV production independent of its protease activity
Creators: name: Li, Yujia
name: Yao, Min
name: Duan, Xiaoqiong
name: Ye, Haiyan
name: Li, Shilin
name: Chen, Limin
name: Yang, Chunhui
name: Chen, Yongjun
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 1: Supplemental Figure 1. Transfection efficiency in HepAD38 cells. HepAD38 cells were seeded at 3 × 105/ml, 2 ml per well in 6-well plates in antibiotic-free medium for 24 h before 1μg (A), 2μg (B), 4μg (C) GFP plasmid DNA or 4μg empty vector (D) was transfected into each well. Fluorescent microscopy images were taken 48 h post transfection. Supplemental Figure 2. USP18 knockdown in HepAD38 cells did not affect expression of HBV proteins. HepAD38 cells were transfected with the 20 nM siUSP18, 20 nM negative siRNA or left untreated, respectively. Forty-eight hours later, culture medium was collected to quantify HBsAg (A) and HBeAg (B) expression level by ELISA assay. Intracellular HBcAg was detected by western blot (C). Results are presented as means ± SD(n ≥ 3). Supplemental Figure 3. IFN and ISG expression in HepAD38. HepAD38 cells were grown in the medium with or without tetracycline (1 mg/ml) until confluent for 6 days. Intracellular RNA was then extracted. Expression of IFNα (A), IFNβ (B) and ISGs mRNA including MxA (C) and OAS2 (D) were detected by real-time PCR. Results are presented as means ± SD (n ≥ 3). *p ≤ 0.05; **p ≤ 0.01; ***p ≤ 0.001. Supplemental Figure 4. Detection of mycoplasma in HepAD38 cells. HepAD38 cells were grown in the medium with or without tetracycline (1 mg/ml) until confluent. The supernatant was collected for detecting mycoplasma. NC, negative control; PC, positive control; Tet+, the complete HepAD38 medium with 1 mg/ml tetracycline; Tet-, the complete HepAD38 medium without tetracycline.
title: Oxygen Isotope Dynamics of Lake Water and Dissolved Phosphate in Saline Lakes of the Cariboo Plateau of British Columbia, Canada
Creators: name: Walters, Liam
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: Phosphate
subject: Isotopes of water
subject: Oxygen isotopes of dissolved phosphate
subject: Alkaline and saline lakes
subject: Astrobiology
subject: Origin-of-life
subject: Biogeochemistry
subject: Geochemistry
subject: FOS: Earth and related environmental sciences

description: Phosphate availability is a critical constraint on prebiotic chemistry, yet natural environments rarely achieve concentrations compatible with origin-of-life experiments. Alkaline and saline lakes have emerged as potential solutions to this "phosphate problem," but the mechanisms controlling phosphate cycling in these extreme environments remain poorly understood. Here, I investigate phosphate dynamics in the alkaline Last Chance and Goodenough Lakes and the magnesium sulfate-rich Basque Lakes of British Columbia's Interior Plateau using oxygen isotope analysis of dissolved phosphate (δ¹⁸OPO₄) and lake waters (δ¹⁸OH₂O). I developed a modified silver phosphate precipitation protocol to enable isotopic analysis of phosphate in these chemically extreme waters. My results show that Last Chance Lake maintains phosphate concentrations up to 12 mmol/L through primarily abiotic processes, evidenced by significant deviations (up to +5.3 ‰) from oxygen isotopic equilibrium (denoted Δδ¹⁸OPO₄). However, neighboring Goodenough Lake's extensive microbial mats drive near-equilibrium signatures (Δδ¹⁸OPO₄ ≈ +2.2 ‰) while limiting phosphate accumulation. In contrast, my analysis of the Basque Lakes demonstrates how extreme brine chemistry can maintain phosphate far from equilibrium (Δδ¹⁸OPO₄ up to +10.7 ‰) through abiotic processes such as adsorption and phosphate mineral precipitation. These findings validate theoretical predictions of phosphate concentration mechanisms in alkaline environments and provide a framework for interpreting potential biosignatures in ancient Earth settings and extraterrestrial environments.
Control of atoms and molecules with shaped broadband pulses
Creators: name: Zhdanovich, Sergey
Publisher: name: University of British Columbia
Year: 2012

description: The main goal of this PhD work is an experimental study of coherent excitation of atomic and molecular wavepackets, i.e. superpositions of many quantum eigenstates, by shaped femtosecond pulses. Approaches allowing nearly complete population transfer between quantum eigenstates were well studied in the past within the two level approximation. In this work we focus on adiabatic and non-adiabatic methods of population transfer beyond the two-level approximation. Excitation of multi-level target states is possible due to broad spectrum of an ultrashort pulse which contains frequencies needed for multiple transitions to different states in the final superposition. At the same time, the spectrum of an ultrashort pulse can be modified, or ``shaped'', in order to affect the excitation process and control the amplitudes in the final superposition. Both non-adiabatic and quasi-adiabatic methods were first implemented and studied in electronic wavepackets in alkali atoms. The non-adiabatic approach revealed features linked to the strong-field perturbations of the energy level structure of the quantum system. An adiabatic method was implemented for the first time on a femtosecond time scale, and was thoroughly characterized. The control over complex amplitudes in the target superposition was demonstrated as well as completeness of the population transfer. In the second part of this work, we focused on coherent control of rotational wavepackets in diatomic molecules. Rotational excitation by a periodic train of femtosecond pulses was investigated in the context of ``delta-kicked'' rotor - a paradigm system for studying quantum chaos, and the effect of quantum resonance was demonstrated for the first time in a system of true quantum rotors. Control of uni-directional molecular rotation was proposed and demonstrated with a novel ``chiral pulse train'' - a sequence of femtosecond pulses with polarization rotating from pulse to pulse by a predefined angle. All the developed techniques offer new tools in coherent control of atomic and molecular wavepackets on an ultrashort time scale.
Spin correlations and doublon production rate for fermionic atoms in modulated optical lattices
Creators: name: Tokuno, Akiyuki
name: Giamarchi, Thierry
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We compute the integrated doublon production rate in response to a lattice modulation for two component fermions in an optical lattice. We derive a general formula for the integrated intensity, valid in the presence of inhomogeneous potentials such as the trap, which gives the integrated intensity in terms of equal time correlation functions only. Such a formula is thus well suited for direct numerical calculations. We show that, in the limit of large repulsion for commensurate fillings, or for temperature ranges for which the hopping is incoherent, the integrated doublon spectrum is directly related to the nearest neighbor spin-spin correlation function. We compute its temperature dependence in this regime using finite temperature quantum Monte Carlo calculation.
description: 5 pages, 1 figure, final version
Boleopthalmus boddarti
Creators: name: Zainal Abidin, Danial Hariz
name: Lavoué, Sébastien
name: Mohd Abu Hassan Alshari, Norli Fauzani
name: Mohd. Nor, Siti Azizah
name: A. Rahim, Masazurah
name: Mohammed Akib, Noor Adelyna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Gobiidae
Boleopthalmus
Boleopthalmus boddarti

description: Boleopthalmus boddarti (Pallas, 1770) Figure 3L Material examined. MALAYSIA • 1, 127 mm TL; Kedah State, Kampung Batu Lintang, Pompang Batu Lintang; 05.624°N, 100.395°E; 19 Apr. 2019; Danial H. Zainal Abidin, Norli F.M.A.H. Alshari leg.; USMFC (34) 00016.
description: Published as part of Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, pp. 601-631 in Check List 17 (2) on page 617, DOI: 10.15560/17.2.601
title: Research in Teacher Leadership in Canada: Transformative and Contextualized Agency
Creators: name: Smith, Cathryn And Schnellert, Leyton (Editors)
Publisher: name: Canadian Association of Teacher Education
Year: 2025

description: This volume is the product of the collaboration of invited participants and editors at the Twelfth Working Conference of the Canadian Association for Teacher Education that was held at Brandon University from October 12-14, 2023. The focus of the conference was to bring together Canadian scholars engaged in teacher leadership, to engage in professional dialogue, to build a learning community, and to publish quality research. Teacher leaders operate “within and beyond the classroom” (Katzenmeyer & Moller, 2009, p. 5) to provide transformative leadership that fosters change in educational contexts. Localized knowledge, professional competence, and strong lateral relationships equip teacher leaders with the skills, confidence, and agency, to develop equitable learning networks, build capacity in others, and strengthen educational outcomes. The book is organized into four sections: A) Researching Teacher Leadership within K–12 Classrooms and Schools; B) Researching Teacher Leadership within K–12 School Systems; C) Researching Teacher Leadership beyond K–12 School Systems; and D) Researching Teacher Leadership within K–12 School Systems, and E) Researching Post-Secondary Teacher Leadership beyond Teacher Education Programs. This 26-chapter volume offers timely, high quality, context-specific research that makes a distinctively Canadian contribution to scholarship in the field of teacher leadership.
title: From Palestine to Turtle Island: Essays on TransIndigenous Literatures
Creators: name: Ababneh, Mahmoud
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: TransIndigenous
subject: Global Indigenous
subject: Turtle Island
subject: Palestine
subject: Literature--English

description: This manuscript dissertation/thesis explores the relationships between Turtle Island and Palestine, contributing to larger discussions in TransIndigenous studies, global Indigenous studies, and within comparative literary studies fields broadly. From Palestine to Turtle Island: Essays on TransIndigenous Literatures creates a dialogue between Indigenous arts and aesthetics centring Indigenous ways of knowing across nations, specifically on Turtle Island and in Palestine, wherein engaging with narrating history and centring Indigenous voices beyond national and exceptionalist narratives about the U.S., Israel, and Canada as colonial states. While I trace possibilities emancipating from juxtaposing Indigenous histories, I pave the way to question our current moment as an extension of settler colonial structures. This manuscript investigates how writers and artists such as Steven Salaita, Armand Garnet Ruffo, James Welch, Aicha Yassin, Charolette DeClue, and Susan Abulhawa reclaim Indigenous voices and histories, reminding readers that settler colonialism is not a past event. They also present Indigenous stories that are past, present, and futurity, surviving despite settler structures of erasure and silence. Additionally, this dissertation aims to situate Palestinian literary and cultural productions in dialogue with Anishinaabe, Cheyenne, and other productions of Algonquin Indigenous artists of Turtle Island. I examine the productive possibilities of this cross-cultural communication to uncover how Indigenous works challenge dominant narratives and offer pathways for resistance, resilience, and healing.