cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multiple scales analysis of a nonlinear timestepping instability in simulations of solitons
Creators: name: Hyatt, Benjamin A.
name: Lecoanet, Daniel
name: Anders, Evan H.
name: Burns, Keaton J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The susceptibility of timestepping algorithms to numerical instabilities is an important consideration when simulating partial differential equations (PDEs). Here we identify and analyze a pernicious numerical instability arising in pseudospectral simulations of nonlinear wave propagation resulting in finite-time blow-up. The blow-up time scale is independent of the spatial resolution and spectral basis but sensitive to the timestepping scheme and the timestep size. The instability appears in multi-step and multi-stage implicit-explicit (IMEX) timestepping schemes of different orders of accuracy and has been found to manifest in simulations of soliton solutions of the Korteweg-de Vries (KdV) equation and traveling wave solutions of a nonlinear generalized Klein-Gordon equation. Focusing on the case of KdV solitons, we show that modal predictions from linear stability theory are unable to explain the instability because the spurious growth from linear dispersion is small and nonlinear sources of error growth converge too slowly in the limit of small timestep size. We then develop a novel multi-scale asymptotic framework that captures the slow, nonlinear accumulation of timestepping errors. The framework allows the solution to vary with respect to multiple time scales related to the timestep size and thus recovers the instability as a function of a slow time scale dictated by the order of accuracy of the timestepping scheme. We show that this approach correctly describes our simulations of solitons by making accurate predictions of the blow-up time scale and transient features of the instability. Our work demonstrates that studies of long-time simulations of nonlinear waves should exercise caution when validating their timestepping schemes.
description: 28 pages, 13 figures, 3 tables
Impact Evidence - Testimonial Letters
Creators: name: Admin, CardiffMet
Publisher: name: Cardiff Metropolitan University
Year: 2023
Subjects: Research, science and technology policy

description: Testimonial letters from Ministry of Health & Quality of Life, Republic of Mauritius confirming collaboration with Professor Owens for a National Diabetic Care Programme and from Professor Owens confirming Lewis’ role in leading the PAD screening aspect of the diabetic foot service in Mauritius.
Optical spectroscopy of the gamma-ray bright blazars PKS 0447-439 and PMN J0630-24
Creators: name: Landt, Hermine
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The large majority of sources detected by the Fermi Gamma-ray Space Telescope are blazars, belonging in particular to the blazar subclass of BL Lacertae objects (BL Lacs). BL Lacs often have featureless optical spectra, which make it difficult and sometimes impossible to determine their redshifts. This presents a severe impediment for the use of BL Lacs to measure the spectrum of the extragalactic background light through its interaction with high-energy gamma-ray photons. I present here high-quality optical spectroscopy of two of the brightest gamma-ray blazars, namely, PKS 0447-439 and PMN J0630-24. The medium-resolution and high signal-to-noise ratio optical spectra show clear absorption lines, which place these BL Lacs at relatively high redshifts of z>=1.246 for PKS 0447-439 and z>=1.238 for PMN J0630-24.
description: 4 pages, 2 figures, accepted by MNRAS Letters
Experimental approaches for determining in-medium properties of hadrons from photo-nuclear reactions
Creators: name: Metag, Volker
name: Thiel, Michaela
name: Berghäuser, Henning
name: Friedrich, Stefan
name: Lemmer, Boris
name: Mosel, Ulrich
name: Weil, Janus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Properties of hadrons and their modification within strongly interacting matter provide a link between experimental observables and Quantum Chromodynamics (QCD) in the non-perturbative sector. The sensitivity of various observables to in-medium modifications of mesons is discussed. The transparency ratio, comparing the meson yield per nucleon within a nucleus relative to that on a free nucleon, is related to the in-medium width of the meson. While the transparency ratio can be determined for any meson lifetime the meson line shape only contains information on in-medium properties if the meson is so short-lived that it decays in the medium after production in a nuclear reaction. Light vector mesons are thus particularly suited for these investigations. The momentum distribution of mesons produced in a photo-nuclear reaction as well as the excitation function also show some sensitivity to different in-medium modification scenarios. As an example, high statistics data taken at MAMI-C on the photoproduction of ω mesons are presented.
description: 7 pages, 6 figures, talk at International School of Nuclear Physics, 33rd course: From Quarks and Gluons to Hadrons and Nuclei, Erice-Siciliy, Sept 16-24, 2011
Visible Strengths: Older Women’s Resilience in the Context of Age Related Adversity
Creators: name: Gulbrandsen, Carolyn
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Social Work
subject: FOS: Sociology
subject: feminist
subject: intersectionality
subject: aging
subject: women
subject: resilience
subject: adversity

description: The objective of the qualitative study was to describe older women’s resilience according to women’s interpretations of their experiences and their understandings of resilience and adversity. The study combined constructivist grounded theory methodology and feminist PAR to create new knowledge about older women’s resilience. Both qualitative methodologies contributed to the study in unique, yet equally important ways. Constructivist grounded theory involved the use of systematic data collection and analysis methods to construct a theory about older women’s resilience and FPAR provided a framework of ethical principles and bridged the construction of new knowledge with social justice oriented action. Drawing from researcher reflexivity, this study explains how every aspect of the research process, including the implementation of constructivist grounded theory methods, was guided by FPAR principles. The constructivist grounded theory created from the researcher’s interpretations of participants’ experiences and the recommendations women formulated during the interviews and focus groups informed the action component of this study that is essential in FPAR. Constructivist grounded theory methodology guided the collection and analysis of data from interviews with 25 women ages 55-73 and from two focus groups. Intersectionality and critical feminist gerontology served as theoretical frameworks for examining the diversity of women’s experiences. The researcher interpreted women’s reflections on their experiences and identified a core category and a constellation of distinct yet interrelated categories, sub-categories and themes. The core category that described the experiences of the women in the study and their understanding of resilience was learning and cultivating wisdom in response to change. Study findings represented women’s diverse experiences and interpretations of change. Women in the study described how their resilience was related to distinct types of change, including identity related change, crisis, loss and significant experiences, how their learning has transformed into wisdom over the course of their lives, and how their resilience is bolstered by sources of scaffolding. The implications for practice described in the study are informed by participants’ recommendations and include valuing the significance of the meaning older women ascribe to their experiences and developing programs that provide sources of scaffolding identified by women in the study.
PERCEIVED STRESS AND STRESSORS AMONG NURSING STAFF IN BESUT HOSPITAL
Creators: name: Dr Zaidatul-Zarina Binti Mohd Zahidi
name: Dr Hariza Binti Husin
name: Dr Raishan Shafini Binti Bakar
name: Dr Noor Hazzyah Binti Isa
name: Mazuana Binti Ismail
name: Asiah Binti Yakub
name: Hussin, Noor Zuraini Binti
name: Mohamad, Nik Amy Diana Binti Nik
Publisher: name: Zenodo
Year: 2021
Subjects: Nursing; stress; Besut Hospital

description: Introduction: Nursing is a profession that faces high demands in providing services for human being. They are exposed to many stressful demands and pressures which directly and indirectly affecting their quality and productivity of their work. Hence, and attempt has been made with the aim to assess the perceived stress among all nursing staff in Besut Hospital and its stressors. Materials and methods: A cross-sectional study has been carried out among all nursing staff in Besut Hospital from 15th April till 15th June 2020.Perceived stress level was assessed using validated Malay version of Perceived Stress Scale. A 19-item Likert Scale questionnaires was used to assess source of stress among them. Data were analysed using descriptive analysis, and multiple linear regression analysis. Results: Majority of the participant were 31-49 years of age, Malay, female and married. Majority of them were diploma holder, had more than 15 years’ job experience and earn more than RM 3000 per month. The study shows that majority of the nursing staff had moderate perceived stress (62.5%). Among the 5 major sources of stressors contributing to their perceived stress, findings revealed that inconsiderate or inequitable supervisor (80.0%) is the highest source of job stress among nursing staff in this hospital. There is significant linear positive relationship between age group and perceived stress. Nursing staff age 25-49 had 0.187 lower in perceived stress compare with those age 40-59. Conclusion: Based on this study, nursing staff had moderate perceived stress and inconsiderate or inequitable supervisor is the highest source of job stress. The finding in this study may lead for further research involving relationship among superior and staff in nursing so that intervention could be made to improve this problem in improving the nursing quality and productivity in their work.

description: This poster was submitted to the 14th National Conference for Clinical Research (NCCR) on August 18-20 2021. https://nccrconference.com.my/
Circular Stochastic Fluctuations in SIS Epidemics with Heterogeneous Contacts Among Sub-populations
Creators: name: Wang, Jia-Zeng
name: Qian, Min
name: Qian, Hong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The conceptual difference between equilibrium and non-equilibrium steady state (NESS) is well established in physics and chemistry. This distinction, however, is not widely appreciated in dynamical descriptions of biological populations in terms of differential equations in which fixed point, steady state, and equilibrium are all synonymous. We study NESS in a stochastic SIS (susceptible-infectious-susceptible) system with heterogeneous individuals in their contact behavior represented in terms of subgroups. In the infinite population limit, the stochastic dynamics yields a system of deterministic evolution equations for population densities; and for very large but finite system a diffusion process is obtained. We report the emergence of a circular dynamics in the diffusion process, with an intrinsic frequency, near the endemic steady state. The endemic steady state is represented by a stable node in the deterministic dynamics; As a NESS phenomenon, the circular motion is caused by the intrinsic heterogeneity within the subgroups, leading to a broken symmetry and time irreversibility.
description: 29 pages, 5 figures
Prospective Cross-sectional Study on Mother's Knowledge and Attitude on Childhood Immunisation in Sibu Hospital
Creators: name: Kiong, Jude Siong Yip
name: Ying, Tang Shi
name: Zhen, Wong Zhen
name: Ying, Philip Tang Tung
Publisher: name: Zenodo
Year: 2021
Subjects: Childhood immunisation; Cross-sectional Study; Maternal and Child Health (MCH)

description: Introduction: The number of vaccine refusal case is in an increasing trend in Malaysia. Since parents are the main decision makers for their children to have immunization, this study was conducted to explore mothers' knowledge and attitude towards childhood immunization in Sibu, Sarawak. Methods: A prospective cross-sectional study was conducted in antenatal, postnatal and 3 pediatric wards in Sibu Hospital. Cluster sampling method was used where data collection was done on 8 randomly selected working days from July to October 2020. All mothers (excluding staffs) in the wards were approached. Self-administered questionnaire (validated3) was given to mother after obtaining written consent. Results are analysed using descriptive statistics. Results: A total of 201 respondents were included in the study, 56% was Iban with mean age of 28 and number of children of 2. Mean score of knowledge was 6.43 (out of 10). About 66% of subjects agreed to the incorrect statement that healthy children do not need immunization. In term of attitude, more than 80% of subjects agree to positive statements. However, only 56% agreed that they are well informed about the possible side effects from vaccination. For vaccines that are not provided under national immunization programme, more than 70% of the subjects are willing to pay to receive influenza and hepatitis-A vaccine for their children.  Conclusion: Knowledge about childhood vaccination is still inadequate among mothers. We suggest healthcare providers to give adequate information about childhood vaccination to mothers during Maternal and Child Health (MCH) follow up. [Disclaimer: Abstract text might vary slightly from what is displayed in the e-poster]
description: This poster was submitted to the 14th National Conference for Clinical Research (NCCR) on August 18-20 2021. https://nccrconference.com.my/
On the Eve of Ivan Kupalo
Creators: name: Pidgorna, Anna
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Music
subject: Theater
subject: folk-song
subject: Folklore
subject: Ukraine
subject: Ukrainian
subject: Kupalo
subject: opera
subject: accordion
subject: Voice
subject: piano
subject: percussion

description: This paper examines the process behind the creation of "On the eve of Ivan Kupalo," a chamber opera in a prologue and four scenes scored for seven singers, accordion, piano, and percussion. Drawing heavily on Ukrainian folklore, the opera explores the particular singing style used in Ukrainian villages and incorporates existing folk repertoire into a musical language, which freely mixes diatonicism, chromaticism, and atonality. The work frames the experience of village dwellers within the ritualized structure of the Kupalo festival, a pagan tradition, which merged with the Christian persona of St. John the Baptist. The analysis of the music and libretto concludes with a discussion of how this opera fits into post-19th century operatic development as a whole, and where it stands in relation to contemporary operatic composition in Ukraine and Canada.
Pitho lherminieri Schramm 1867
Creators: name: Almeida, Alexandre Oliveira De
name: Guerrazzi, Maria Cec Lia
name: Coelho, Petr Ȏ Nio Alves
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Mithracidae
Pitho
Pitho lherminieri

description: Pitho lherminieri (Schramm, 1867)
Material examined (N=5). 1m, 3f, 07/VI/2000, 13°52’37”S / 38°57’11”W (MZUESC #63).
Distribution. Western Atlantic – from North Carolina to Florida, Gulf of Mexico, Antilles, and Brazil (Fernando de Noronha, and from Pará to São Paulo) (Melo 1996).
Ecological notes. On mud, sand, shell, rock, and coral bottoms. From shallow waters to 28 m, exceptionally to 200 m (Melo 1996).
Previous records in Bahia. Rodrigues da Costa (1968), Coelho (1971), Coelho & Ramos (1972), Gomes Corrêa (1972), Gouvêa & Leite (1980), Melo (1985), Barreto et al. (1993).
description: Published as part of Almeida, Alexandre Oliveira De, Guerrazzi, Maria Cec Lia & Coelho, Petr Ȏ Nio Alves, 2007, Stomatopod and decapod crustaceans from Camamu Bay, state of Bahia, Brazil, pp. 1-45 in Zootaxa 1553 on page 29, DOI: 10.5281/zenodo.178168
Spectral Duality Between Heisenberg Chain and Gaudin Model
Creators: name: Mironov, A.
name: Morozov, A.
name: Runov, B.
name: Zenkevich, Y.
name: Zotov, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In our recent paper we described relationships between integrable systems inspired by the AGT conjecture. On the gauge theory side an integrable spin chain naturally emerges while on the conformal field theory side one obtains some special reduced Gaudin model. Two types of integrable systems were shown to be related by the spectral duality. In this paper we extend the spectral duality to the case of higher spin chains. It is proved that the N-site GL(k) Heisenberg chain is dual to the special reduced k+2-points gl(N) Gaudin model. Moreover, we construct an explicit Poisson map between the models at the classical level by performing the Dirac reduction procedure and applying the AHH duality transformation.
description: 36 pages
Dissociable roles for nucleus accumbens core and shell in regulating risk-based decision making
Creators: name: Stopper, Colin Michael
Publisher: name: University of British Columbia
Year: 2010

description: Decision making under conditions of risk and uncertainty constitutes a fundamental aspect of society. Few routine cost/benefit decisions are independent of any consideration of risk and uncertainty, from investing and financial matters to simple assessments of time management and resource allocation. Neuropsychological studies with brain-damaged patients gave initial insights into the cortical contributions to risk-based decision making. Subsequent imaging work has allowed for an understanding of the neural functioning of patients afflicted by disorders which impair risk-based decision making and has also implicated various subcortical structures, including the nucleus accumbens, in these types of decisions. Recent research in humans has shown that nucleus accumbens activation precedes risk-taking or risk-seeking on a financial decision making task. Additionally, animal research has determined that lesions of the nucleus accumbens bias choice away from larger but riskier rewards. The current experiments expand upon these findings by demonstrating that inactivation of a subregion of the accumbens, the shell, is responsible for this bias while the other subregion, the core, mediates the speed at which these decision are made. The effects of accumbens inactivation on risky choice appeared to be due to a reduced tendency to choose the riskier option following trials where rats chose risky and received reward (i.e., reduced win-stay performance), suggesting reduced reward sensitivity. Additionally, this set of experiments demonstrates that instead of inducing risk-aversive tendencies, inactivation of the nucleus accumbens interferes with general value judgments. Specifically, accumbens inactivation induces a slight reduction in preference for the larger reward when the risk/uncertainty component is eliminated. Additionally, inactivation only shifts choice preference away from the more valuable option when it is larger and probabilistic. These data suggest that in addition to effort- and delay-based decision making, the nucleus accumbens also mediates risk-based decision making. In addition to decisions under risk, the nucleus accumbens also seems to play a smaller, yet significant role in judgments of overall value and utility.
Shadow analysis of an approximate rotating black hole solution with weakly coupled global monopole charge
Creators: name: Fathi, Mohsen
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the shadow properties of a rotating black hole with a weakly coupled global monopole charge, using a modified Newman-Janis algorithm. This study explores how this charge and rotational effects shape the black hole's shadow, causal structure, and ergoregions, with implications for distinguishing it from Kerr-like solutions. Analysis of null geodesics reveals observable features that may constrain the global monopole charge and weak coupling parameters within nonminimal gravity frameworks. Observational data from M87* and Sgr A* constrain the global monopole charge and coupling constant to $0 \leq γ\lesssim 0.036$ and $-0.2 \lesssim α\leq 0$, respectively.
description: 25 pages, 15 figures
Long-Distance Contribution to ΔΓs/Γs of the $B_s-\bar{B}_s$ System
Creators: name: Chua, Chun-Khiang
name: Hou, Wei-Shu
name: Shen, Chia-Hsien
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We estimate the long-distance contribution to the ΔΓs of B_s system, based mainly on two-body D^(*)_s\Dbar^(*)_s modes and three-body D^(*)_s\Dbar^(*)\Kbar^(*) modes (and their CP conjugates). Some higher c\bar{s} resonances are also considered. The contribution to ΔΓs/Γs by two-body modes is 10.2+-3.0%, slightly smaller than the short-distance result of 13.3+-3.2%. The contribution to width difference by D*_s0(2317), D_s1(2460), and D_s1(2536) resonances is negligible. For the three-body modes, we adopt the factorization formalism and model the form factors with off-shell D^(*)_s poles, the D_{sJ}(2700) resonance, and non-resonant (NR) contributions. These three-body modes can arise through current-produced or transition diagrams, but only SU(3)-related D^(*)_{u,d} \Dbar^(*)\Kbar modes from current diagram have been measured so far. The pole model results for D^*_{u,d} \Dbar^(*)\Kbar agree well with data, while D_{u,d} \Dbar^(*)\Kbar rates agree with data only within a factor of 2 to 3. All measured three-body rates can be reproduced by including NR contribution. The total ΔΓs/Γs obtained is 16.7+-8.5%, which agrees with the short-distance result within uncertainties. For illustration, we also demonstrate the effect of D_{sJ}(2700) in modes with D^(*)K^*. In all scenarios, the total width difference remain consistence to the short-distance result. Our result indicates that (a) the operator product expansion (OPE) in short-distance picture is a valid assumption, (b) approximating the two-body decays to saturate width difference has a large correction, (c) the effect of three-body modes cannot be neglected, and (d) in addition to D^(*)_s poles, the D_{sJ}(2700) resonance also plays an important role in three-body modes. Future experiments are necessary to improve the estimation of ΔΓs from long-distance picture.
description: 27 pages, 4 figures
“I Do”: A Qualitative Study of Gay Men in Same-Sex Marriages
Creators: name: Morales, Edwin Estuardo
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Canadian Studies
subject: Gender Studies
subject: Social Work
subject: FOS: Sociology
subject: gay
subject: Men
subject: same-sex
subject: marriage
subject: Social
subject: support
subject: Recognition
subject: service
subject: Access
subject: managing
subject: risk
subject: work
subject: qualitative
subject: study
subject: Canadian
subject: Practice
subject: implications
subject: Legal
subject: Rights
subject: Friends
subject: relatives
subject: co-workers
subject: families
subject: choice
subject: origin
subject: Process
subject: entering
subject: being

description: In Canada, the right to marry someone of the same sex has been available to sexual minorities since 2005. However, while the right is available on paper, little is known about how entry into this institution is socially negotiated by those who choose to marry. This qualitative study explored the process of entering and being in a same-sex marriage through 11 one-on-one interviews with gay men who had been legally same-sex married for at least six months and were currently living in Calgary, Alberta, Canada. The final product is an exploration of same-sex marriage entry that focuses on social support, recognition, and service access perceived by these men. Practice implications are discussed to prepare professionals to support the unique psychosocial context faced by these men. In addition, this social justice inspired work aims to increase awareness that legal rights do not guarantee universal social acceptance.
Maritime Security in the 21st Century
Creators: name: Huseynov, Rahman
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 440804
subject: Defence studies
classificationCode: 440808
subject: International relations

description: Piracy is usually defined in one of two ways. The first, which is utilised by the International Maritime Organisation (IMO) is derived from the United Nations Convention on the Law of the Sea (UNCLOS). Piracy is defined as illegal acts of violence or detention or looting committed by the crew regardless of their nationality, or passengers of a chartered ship or aircraft for private purposes and directed: on the sea, against another ship or aircraft, or person or property on board such a ship or aircraft; for ships, people, property located outside the authority of the state. Another definition of piracy offered by the International Maritime Bureau (IMB) is “the act of boarding or attempting to board any ship with the evident intent to conduct theft or any other offense and the apparent intent or capability to use force in the promotion of that act.” Any attack or attempted attack on a ship, whether anchored, berthed, or at sea, is covered by the IMB definition.
Developing HEAT Scores with H-Res Thermal Imagery to Support Urban Energy Efficiency
Creators: name: Hemachandran, Bharanidharan
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Geography
subject: Remote Sensing
subject: Energy
subject: HEAT Scores
subject: Urban Energy Efficiency
subject: Thermal Remote Sensing
subject: Geoweb
subject: Feedback

description: As part of The Calgary Community GHG Reduction Plan (2009) The City is seeking an implementation strategy to reduce GHGs and promote low-carbon living, with a focus on improving urban energy efficiency. The most cited obstacle to energy efficiency improvements is the lack of interest from consumers (CUI, 2008). However, Darby (2006) has shown that effective feedback significantly reduces energy consumption. To exploit these findings, the HEAT (Heat Energy Assessment Technologies) Geoweb project integrates high-resolution (H-Res) airborne thermal imagery (TABI 1800) to provide unique energy efficiency feedback to Calgary homeowners in the form of interactive HEAT Maps and Hot Spots (Hay et al., 2011). As a part of the HEAT Phase II program, the goal of this research is to provide enhanced feedback support for urban energy efficiency by meeting two key objectives: (i) develop an appropriate method to define HEAT Scores using TABI 1800 imagery that allows for the comparison of waste heat of one or more houses with all other mapped houses in the community and city, and (ii) develop a multi-scale interactive Geoweb interface that displays the HEAT Scores at City, Community and Residential scales. To achieve these goals, we describe the evolution of three novel HEAT Score techniques based on: (i) a Standardized Score, (ii) the WUFI® model and Logistic Regression and (iii) a novel criteria weighted method that considers: (a) heat transfer through different roofing materials, (b) local climatic conditions and (c) house age and living area attributes. Furthermore, (d) removing or adding houses to analysis based on this 3rd technique, does not affect the HEAT Score of other houses and (e) HEAT Scores can be compared within and across different cities. We also describe how HEAT Scores are incorporated within the HEAT Geoweb architecture. It is envisioned that HEAT Scores will promote energy efficiency among homeowners and urban city planners, as they will quantify and visualize invisible waste heat, and provide a public comparison of urban energy efficiency at the scale of homes, communities and cities. Analysis is conducted on 9279 houses in 12 communities over the SW quadrant of The City of Calgary and their results are publically available for comparison at www.saveheat.co.
Effects of Acute and Chronic Hypoxia Exposure on the Contractile Properties of Isolated Compact and Spongy Ventricular Myocardium From Rainbow Trout (Oncorhynchus mykiss)
Creators: name: Roberts, Jordan Cyril
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Animal Physiology
subject: Physiology
subject: FOS: Biological sciences
subject: Zoology
subject: Rainbow trout
subject: hypoxia
subject: Cardiac function
subject: Myocardium
subject: Environmental Stress

description: The ventricle of salmonids is composed of an outer compact layer, routinely supplied with well-oxygenated arterial blood, and inner spongy myocardium receiving low oxygen venous blood. During hypoxia oxygen exposures for both these tissue layers declines. As well, hypoxia results in an increase to circulating epinephrine for trout, which may affect the contractile response during hypoxia. This thesis presents an investigation into effects of high epinephrine, as well, acute and chronic hypoxia exposure on the contractile performance of these ventricular tissues from rainbow trout (Oncorhynchus mykiss). Acute hypoxia resulted in a similar decline to work output in compact and spongy myocardium. High epinephrine however, improved contractile performance of spongy myocardium during hypoxia. Hypoxia acclimation resulted in a decline to work output from spongy myocardium across all oxygen exposures. It appears hypoxia causes a decline in ventricular performance; however, elevated epinephrine exposure may be important to maintain higher performance during hypoxia.
Amurodytes belovi Fery & P.N & S 2013, nov.sp.
Creators: name: Fery, H.
name: P. N
name: S, East
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Amurodytes
Amurodytes belovi

description: Amurodytes belovi nov.sp. T y p e l o c a l i t y: Russia, Far East, Amur Oblast, Zeya Nature Reserve; exact coordinates not known, but approximately around 54.08N, 126.90E. The guard point named "52nd km" is within 1 km east of the road joining Zeya town and Zolotaya Gora village, 52 km from Zeya by this road; the type specimens were collected east of the road, probably in the Bolshaya Erakingra River, which belongs to the Zeya part of the Amur basin (V. Belov, pers. comm.). T y p e m a t e r i a l:H o l o t y p e:, "Zeyskiy [= Zeya, from Zeya River] zapov. [zapovednik = nature reserve] / kordon 52-y km [= "52nd km" guard point] / 14.VII.1978 / Belov" [printed photographically except "14" (hw Vassili Belov)], "Oreodytes / rivalis Gyll. / det. E. Berlov, 1983" [hw Eduard Berlov, Irkutsk], " Holotype / Amurodytes belovi sp.n. / H. Fery & P.N. Petrov det. 2013" [red, printed] (ZMUM). P a r a t y p e s:1, provided with a handwritten label, text same as in holotype (hw Pyotr Petrov); specimen originally on glue card mounted on same pin as that of holotype (ZMUM). 1, 1, labelled as holotype, but without Berlov’s determination label (CHF). 1, "Zeyskiy zapov. / kordon 52-y km / 15.VII.1978 / Belov" [printed photographically except "15" (hw Vassili Belov)]; behind "Belov" also name "Kurbatov", this, however, crossed out] (DEUM). 1, "Sev. Buryatiya [severnaya Buryatiya = northern Buryatia] / r. B. Amalat [reka Bol'shoy Amalat = Bolshoy Amalat River], verkh. [verkhov'ya = upper reaches] / 22.6.1967 Kabakov" [hw Oleg Kabakov], "Oreodytes septemtrionalis [sic!] / (Gyll.) / det. O.N. Kabakov " [hw Kabakov except for last line (printed)], "Zoological Institute / St. Petersburg / coll. Kabakov " [printed], "Oreodytes /? belovi / sp.n.?, / P. Petrov det. 2006" [hw Petrov except for last line (printed); co-ordinates estimated to ca. 54.10N 113.35E, locality situated ca. 900 km W of locus typicus] (ZISP). N o t e s: All paratypes are provided with our red printed labels. Locality labels are transcribed here from the Russian Cyrillic text, with explanations of abbreviations, comments, and English translations given in square brackets; slashes indicate line breaks.
description: Published as part of Fery, H., P. N & S, East, 2013, Amurodytes belovi nov. gen. et nov. sp. from eastern Russia (Coleoptera, Dytiscidae, Hydroporinae), pp. 1821-1838 in Linzer biologische Beiträge 45 (2) on page 1824, DOI: 10.5281/zenodo.5346195
The HI Mass Function of the Local Universe: Combining Measurements from HIPASS, ALFALFA and FASHI
Creators: name: Ma, Wenlin
name: Guo, Hong
name: Xu, Haojie
name: Jones, Michael G.
name: Zhang, Chuan-Peng
name: Zhu, Ming
name: Wang, Jing
name: Wang, Jie
name: Jiang, Peng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first HI mass function (HIMF) measurement for the recent FAST All Sky HI (FASHI) survey and the most complete measurements of HIMF in the local universe thus far. We obtained these results by combining the HI catalogues from HI Parkes All Sky Survey (HIPASS), Arecibo Legacy Fast ALFA (ALFALFA) and FASHI surveys at redshift 0 < z < 0.05, covering 76% of the entire sky. We adopted the same methods to estimate the distances, calculate the sample completeness, and determine the HIMF for all three surveys. The best-fit Schechter function for the total HIMF shows a low-mass slope parameter of alpha = -1.30 and a knee mass log(Ms) = 9.86, along with a normalisation of phi_s = 0.00658. This gives us the cosmic HI abundance: omega_HI= 0.000454. We find that a double Schechter function with the same slope alpha better describes our HIMF, where the two different knee masses are log(Ms1) = 9.96 and log(Ms2) = 9.65. We verify that the measured HIMF is marginally affected by the choice of distance estimates. The effect of cosmic variance is significantly suppressed by combining the three surveys and this provides a unique opportunity to obtain an unbiased estimate of the HIMF in the Local Universe.
description: 10 pages, 7 figures, published in A&A
In Vivo Assessment of Bone Microarchitecture and Estimated Bone Strength
Creators: name: Nishiyama, Kyle Kenji Stephen
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Medicine and Surgery
subject: Radiology
subject: Engineering--Biomedical
subject: medical imaging
subject: osteoporosis
subject: bone mechanics

description: Osteoporosis is a disease characterized by loss of bone mass and structural deterioration leading to increased risk of fracture. Currently, osteoporosis is assessed by areal bone mineral density; however, this does not provide structural information, which is a key determinant of bone strength. Recent advances allow for the assessment of bone structure in vivo using quantitative computed tomography (QCT) and high-resolution peripheral QCT (HR-pQCT). The overall objective of this thesis was to improve the assessment of bone structure and strength using three-dimensional imaging technologies. First, measurements of cortical porosity from HR-pQCT were validated against micro-CT (R2 = 0.80) and applied to a population-based sample (N = 280, Ages: 18-99 yrs.) of healthy, osteopenic, and osteoporotic, pre- and postmenopausal women. Cortical porosity was higher in postmenopausal women and those with disease. Measurements of cortical porosity were also applied to another group with high fracture incidence: children and adolescents (N = 398, Ages: 9-22 yrs.). Boys were found to have higher porosity than girls, and those at earlier pubertal stages had higher porosity than those post-pubertal. Bone quality measurements were also combined with finite element estimates of bone strength to determine if the measurements could distinguish women with fracture from fracture-free controls. High accuracy was achieved using both HR-pQCT scans of peripheral sites (83.3%) and QCT scans of the proximal femur (84.3%) when classifying the groups using support vector machines. Together, these results provide insight into the differences in bone microstructure and strength with age and disease. In addition, this work demonstrates the ability of novel 3D technologies and methods to better discriminate individuals with and without fracture.
Truede Rhododendron-arter i Universitetetshagene i Bergen (Threatened Rhododendron species in the Bergen University Gardens)
Creators: name: Pirie, Michael
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 319999
subject: Other biological sciences not elsewhere classified

description: Description of ex situ conservation collections of Rhododendron at the Bergen University Gardens, Norway. Original with figures in Norwegian, English translation.
The interplay of mutations and electronic properties in disease-related genes
Creators: name: Shih, Chi-Tin
name: Wells, Stephen A.
name: Hsu, Ching-Ling
name: Cheng, Yun-Yin
name: Römer, Rudolf A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Electronic properties of DNA are believed to play a crucial role in many phenomena in living organisms, for example the location of DNA lesions by base excision repair (BER) glycosylases and the regulation of tumor-suppressor genes such as p53 by detection of oxidative damage. However, the reproducible measurement and modelling of charge migration through DNA molecules at the nanometer scale remains a challenging and controversial subject even after more than a decade of intense efforts. Here we show, by analysing 162 disease-related genes from a variety of medical databases with a total of almost 20,000 observed pathogenic mutations, a significant difference in the electronic properties of the population of observed mutations compared to the set of all possible mutations. Our results have implications for the role of the electronic properties of DNA in cellular processes, and hint at the possibility of prediction, early diagnosis and detection of mutation hotspots.
Smooth Reverse Subdivision
Creators: name: Sadeghi, Javad
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Computer Science
subject: Multiresolution
subject: Reverse subdivision
subject: Energy minimization

description: Multiresolution (MR) provides a useful framework for hierarchical representation and manipulation of geometric objects. It consists of two main operations: decomposition (finding coarse points and details) and reconstruction (subdivision plus error correction). One way to construct MR is to use a reverse subdivision (RS) approach by minimizing the error between fine points and subdivided coarse points. However, after a few levels of decomposition using current RS techniques, the coarse points are usually high energy and do not preserve the overall structure of the fine points. This limits the reverse subdivision-based editing and synthesis applications to produce accurate results. This thesis introduces a new reverse subdivision framework, entitled "Smooth Reverse Subdivision", that considers the smoothness of the coarse points as a factor in the decomposition. Using a weighted least-squares approach, a trial set of reverse subdivision operations are optimized globally to have a balance between providing a good approximation of the fine points and reducing the energy of the coarse points. Then, by finding a local representation for the resulting operations, the work is extended to subdivision schemes for general topology surfaces. The resulting decomposition and reconstruction operations feature linear processing time. To achieve a compact representation for these operations, a novel fairing operation with local inverse is presented. The new decomposition operations resulting from this new fairing technique can be reversed locally without over-representation. In addition, the new fairing operation provides a well-defined structure for constructing new subdivision and reverse subdivision schemes. Finally, smooth reverse subdivision is used in example MR editing and synthesis applications as well as image compression. Smooth coarse models resulting from this work, preserve the overall structure of the fine models. This improves the results of current MR editing and synthesis applications.
Range Camera Motion Capture: Geometric Parameter Extraction from Human Motion Data in Point Clouds
Creators: name: Steward, Jeremy
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Engineering--Civil
subject: human motion capture
subject: motion capture
subject: time-of-flight
subject: markerless
subject: range camera
subject: Point Cloud
subject: 3D
subject: human motion

description: Motion capture systems presently face many problems with soft-tissue artefacts; and the cost of long set up, examination, and turnover times on actionable data. Soft-tissue artefacts are resultant from sensor choice, whenever affixed markers or sensors are required. Moreover, long set up times are driven from the need for subjects to wear specialized markers, and turnover times largely driven by the complex spatial processing of these targets or markers. To work around these limitations, a markerless system is desired. This thesis describes a set of processes to register, segment, and model a full 3D time-series of motion data. This is realized in the development of the RCMOCAP system, which is a markerless system for motion capture. Coordinate registration, body extraction, limb segmentation, and parameter modeling processes developed for complete 3D motion coverage have been evaluated in the context of real-world motion and effects, captured through the RCMOCAP system.
Telemedicine Readiness among Visitors of Government Hospital in Selangor, Malaysia during COVID-19 Pandemic
Creators: name: KAMARUDIN Siti Sabrina
name: Azizah, MOHAMAD Nor
name: MAT GHANI Nurizati
name: EGAR, Rabiahtul Adawiyah
name: Fariza, NGAH Nor
Publisher: name: Zenodo
Year: 2021
Subjects: telemedicine
delivering care
readiness
Cross-sectional

description: Technology such as telemedicine has been instrumental in delivering care, especially during COVID-19 pandemic. Visitors who accompany patients play an integral part in moderating access to patient's care. However, readiness of telemedicine among these family members remains to be explored. Exploration of readiness towards telemedicine among visitors of urban government hospital in Selangor was carried out. Cross-sectional study utilizing questionnaire adapted from Hossain 2019 were conducted from November to December 2020 across 400 respondents. A total of 234 females (48%) and 166 males (35%), with 267(66%) constitutes the age group of 21-30years-old. 322(84%) of respondents had tertiary education with a minimum of diploma holders. 183(38%) had a monthly income less than RM3000, and 112(23%) had an income of RM3000-6000. 369(76.9%) of respondents reported skill readiness for telemedicine, whereas 31(6.5%) reported poor skill readiness for telemedicine. Age, education, and household income were associated with telemedicine readiness skills with p=0.001; p<0.001 and p=0.018, respectively. The majority, 340(70%) of respondents, reported behavioral readiness for telemedicine. 375(93.8%) reported good access to telemedicine with a minimum of at least four accessibility of the following: smartphone, internet, computers, social-media account, file management, and communication. High favorable readiness of telemedicine is reported. However, most respondents were from the age group of 21-30 years old. These visitors who had accompanied their family members for appointments despite belonging to low-middle income-group; showed favorable technological and behavior readiness for the usage of telemedicine. Visitors should be considered as integral elements when providing telemedicine services. Favorable usage of telemedicine among the visitors indicates promising utilization of telemedicine in overcoming barriers for patient's care. Disclaimer: Abstract text might vary slightly from what is displayed in the e-poster.
description: This poster was submitted to the 14th National Conference for Clinical Research (NCCR) in August 18-20, 2021. https://nccrconference.com.my/
Bound states in one-dimensional systems with colored noise
Creators: name: Wei, Xingbo
name: Feng, Kewei
name: Yi, Tian-Cheng
name: Liu, Tong
name: Xianlong, Gao
name: Zhang, Yunbo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate the phase transitions in a one-dimensional system with colored noise. Previous studies indicated that the phase diagram of this system included extended and disorder-induced localized phases. However, by studying the properties of wave functions, we find that this phase diagram can be further refined, revealing the existence of a bound phase for the large potential amplitude $W$ and noise control parameter $α$. In the bound phase, the wave function cannot extend throughout the entire chain, tails decay faster than exponentially and its distribution expands as the system size increases. By adjusting the potential amplitude to induce a transition from the extended phase to the bound phase, we find that bound states coexist with extended states in the spectrum. In contrast, when the system transitions from the Anderson localized phase to the bound phase, we do not observe the obvious coexistence of Anderson localized and bound states. Finally, by performing the time evolution, we find that the dynamic transition point of the bound phase is inconsistent with the static one for large $α$.
description: 10 pages, 12 figures, To be published in Physical Review B
Photoinduced helical metal and magnetization in two-dimensional electron systems with spin-orbit coupling
Creators: name: Ojanen, Teemu
name: Kitagawa, Takuya
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Helical metals realized at the surfaces of topological insulators have recently attracted wide attention due to their potential applications in spintronics. In this paper we propose to realize helical metals through the application of THz light on common two-dimensional semiconductors and discuss their observable properties. We show that the application of circularly polarized light enables coherent manipulation of magnetization. Moreover, for a range of chemical potentials the system behaves as a helical metal, exhibiting a large anomalous Hall conductivity and associated magnetoelectric effect. Proposed dynamical engineering of material properties through light in much-studied materials opens new perspectives for future applications.
description: 4+epsilon pages, 4 figures