cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The oil production response to Alberta's government-mandated quota
Creators: name: Hallak, Amir
name: Jensen, Adam
name: Lybbert, Gilbert
name: Muehlenbachs, Lucija
Publisher: name: The School of Public Policy Publications
Year: 2021

description: Two years ago, the Alberta government put in place a temporary oil-production quota. However, the quota’s impact could well be felt in the province’s oil production for years to come. The quota applied only to firms producing more than 10,000 barrels of oil per day and was instituted as a response to pipeline constraints that caused Alberta oil prices to be much lower than prices elsewhere. Production from both oilsands mines and oil wells dropped as soon as the government announced the quotas. The media warned that the quotas would force production to transfer to Saskatchewan, but the research for this paper found that this never occurred. The quota policy was announced in December 2018 and a week later, the price of Alberta oil had jumped from $29.09/bbl to $50.08 bbl, a 72 per cent rise. When the quota policy actually took effect the first of January 2019, the price increased again, but by much less. The anticipation of the quota alone was enough to create the desired price increase. The quota, which set limits for the total combined crude oil and bitumen permitted to be produced, was assigned to individual operators and designed to provide an 8.5 per cent reduction in oil production. The total quota was fixed at 3.56 million barrels a day in January 2019, but individual quotas could be traded across eligible operators, minimizing the overall costs of achieving the total goal. However, total production continued falling even when the quota was eventually relaxed; the market and a low world price created a scenario in which production fell below the amount permitted by the quota. All the oil companies reduced their production regardless of whether they fell within the quota’s guidelines or not; however, the firms that were subject to the quota reduced their production more than the others. The quota was lifted in December 2020 when export capacity again became sufficient. While curtailing production had the desired result of raising Alberta oil prices and resolving the differential between local prices and the world benchmark, its ripple effects may well be felt in the longer term. This paper finds that fewer wells are being drilled and more wells are suspending production. Tradition dictates that when a well becomes inactive, it is rarely returned to a productive state. Those firms that resorted to low levels of drilling in order to meet the quota have created a situation that could affect Alberta oil production in the years ahead.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
Full Counting Statistics of the momentum occupation numbers of the Tonks-Girardeau gas
Creators: name: Devillard, Pierre
name: Chevallier, Denis
name: Vignolo, Patrizia
name: Albert, Mathias
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We compute the fluctuations of the number of bosons with a given momentum for the Tonks-Girardeau gas at zero temperature. We show that correlations between opposite momenta, which is an important fingerprint of long range order in weakly interacting Bose systems, are suppressed and that the full distribution of the number of bosons with non zero momentum is exponential. The distribution of the quasi-condensate is however quasi Gaussian. Experimental relevance of our findings for recent cold atoms experiments are discussed.
description: 10 pages, 4 figures
New Concepts in Synagogue Architecture a Comparison of Three Synagogues in the Washington Area
Creators: name: Zohar, Chula
name: Shaffer, Robert
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Environmental Regulation and the COVID-19 Pandemic: A Review of Regulator Response in Canada
Creators: name: Goodday, Victoria
Publisher: name: The School of Public Policy Publications
Year: 2021

description: Governments worldwide weakened environmental protection in response to the COVID-19 pandemic, including federal and provincial government agencies across Canada. In this briefing paper, I review and analyze these actions, comparing the types of rules changed, types of changes, rationale and sectors impacted. Results show that Canadian regulators took one of two approaches: enforcement discretion or pre-emptive rule adjustment. Industry, government and public stakeholders all benefited from relaxed rules. Most of the rules relaxed, however, were specific to certain industrial sectors: the oil, gas and coal; mining; fisheries and water sectors. Regulators’ main reason for adjusting environmental rules was to address capacity constraints faced by regulated entities, with limited detail provided to justify the changes in most cases. Over a third of the changes were indefinite with no set end date. I discuss implications of these actions, including increased risk of harm to the environment and human health, budgetary impacts, noncompliance enforcement and considerations for regulatory design moving forward.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
ПРОФИЛАКТИКА ИНСПЕКТОРИ ТОМОНИДАН ҲАЁТГА ҚАРШИ ЖИНОЯТЛАРНИНГ ОЛДИНИ ОЛИШ ФАОЛИЯТИНИ ТАКОМИЛЛАШТИРИШ
Creators: name: Бабаханов, Ҳамдам
name: Хошимов, Муҳаммадазиз
Publisher: name: Zenodo
Year: 2025

description: Мақолада инспекторларнинг томонидан ҳаётга қарши жиноятларнинг олдини олиш фаолиятини такомиллаштиришнинг аҳамияти, долзарб масалалари ва ишлаб чиқилган чоралар таҳлил қилинади. Инспекторларнинг профилактика фаолиятини самарали ташкил этиш, жиноятчиликнинг олдини олишда замонавий усуллар ва технологиялардан фойдаланишнинг аҳамияти акс эттирилган.
Improving STDP-based Visual Feature Learning with Whitening
Creators: name: Falez, Pierre
name: Tirilly, Pierre
name: Bilasco, Ioan Marius
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: In recent years, spiking neural networks (SNNs) emerge as an alternative to deep neural networks (DNNs). SNNs present a higher computational efficiency using low-power neuromorphic hardware and require less labeled data for training using local and unsupervised learning rules such as spike timing-dependent plasticity (STDP). SNN have proven their effectiveness in image classification on simple datasets such as MNIST. However, to process natural images, a pre-processing step is required. Difference-of-Gaussians (DoG) filtering is typically used together with on-center/off-center coding, but it results in a loss of information that is detrimental to the classification performance. In this paper, we propose to use whitening as a pre-processing step before learning features with STDP. Experiments on CIFAR-10 show that whitening allows STDP to learn visual features that are closer to the ones learned with standard neural networks, with a significantly increased classification performance as compared to DoG filtering. We also propose an approximation of whitening as convolution kernels that is computationally cheaper to learn and more suited to be implemented on neuromorphic hardware. Experiments on CIFAR-10 show that it performs similarly to regular whitening. Cross-dataset experiments on CIFAR-10 and STL-10 also show that it is fairly stable across datasets, making it possible to learn a single whitening transformation to process different datasets.
Evidence-Based and Community Engaged Pandemic Responses for Calgary
Creators: name: Kohek, Jessica
name: Edwards, Meaghan
name: Milaney, Katrina
name: Zwicker, Jennifer
Publisher: name: The School of Public Policy Publications
Year: 2021

description: Pandemics unduly burden those who are already economically and socially disadvantaged by poverty, disability, marginalization, and other vulnerabilities. Global pandemics increase disparities experienced by society’s most vulnerable, as inadequacies in systems-level protections make services challenging to access during emergencies. Families are specifically at risk, especially if they experience economic and social disparity concurrently with the pandemic. This study focuses on examining the way COVID-19 has exacerbated challenges to evidence based practice (EBP) implementation for community organizations in Calgary. Here we describe circumstances that make families vulnerable, the community organizations that support these families during the pandemic, and challenges with implementing EBP. To better understand policy barriers and facilitators as they relate to EBP access throughout the pandemic in Calgary, we conducted focus groups using the Nominal Group Technique (NGT) with diverse individuals representing local community organizations. Participants articulated the structural disparities that impede access to community-based EBP during the pandemic, and recognized potential solutions. The major themes uncovered in the research, as they apply to barriers to evidence-based service provision, included reduced revenue streams, access to technology, and lack of collaborative communication within and between ministries, as well as sectors. Proposed solutions to these barriers included person-centred policy and program approaches and reciprocal partnerships.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
Gluon Radiation and Parton Energy Loss
Creators: name: Kovner, Alexander
name: Wiedemann, Urs Achim
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The propagation of hard partons through spatially extended matter leads to medium-modifications of their fragmentation pattern. Here, we review the current status of calculations of the corresponding medium-induced gluon radiation, and how this radiation affects hadronic observables at collider energies.
description: Review for: Quark Gluon Plasma 3, Editors: R.C. Hwa and X.-N. Wang, World Scientific, Singapore. 57 pages, 23 figures
Additional file 6 of DDX5 potentiates HIV-1 transcription as a co-factor of Tat
Creators: name: Nyaradzai Sithole
name: Williams, Claire A.
name: Abbink, Truus E. M.
name: Lever, Andrew M. L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: Additional file 6: Table S1. List of siRNAs.
Subspace arrangements defined by products of linear forms
Creators: name: Björner, Anders
name: Peeva, Irena
name: Sidman, Jessica
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 05E99, 13F20, 13P10, 52B30, 52C35

description: We consider the vanishing ideal of an arrangement of linear subspaces in a vector space and investigate when this ideal can be generated by products of linear forms. We introduce a combinatorial construction (blocker duality) which yields such generators in cases with a lot of combinatorial structure, and we present the examples that motivated our work. We give a construction which produces all elements of this type in the vanishing ideal of the arrangement. This leads to an algorithm for deciding if the ideal is generated by products of linear forms. We also consider generic arrangements of points in ${\bf P}^2$ and lines in ${\bf P}^3.$
description: 20 pages; AMSLatex; v.2: proof of Proposition 5.1.3 corrected; proof of Proposition 5.1.6 shortened; references added, v.3: minor corrections; final version; to appear in the Journal of the London Mathematical Society
The impact of hexagonal boron nitride encapsulation on the structural and vibrational properties of few layer black phosphorus
Creators: name: Birowska, Magdalena
name: Urban, Joanna
name: Baranowski, Michał
name: Maude, Duncan K
name: Plochocka, Paulina
name: Szwacki, Nevill Gonzalez
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The encapsulation of two-dimensional layered materials such as black phosphorus is of paramount importance for their stability in air. However, the encapsulation poses several questions, namely, how it affects, via the weak van der Waals forces, the properties of the black phosphorus and whether these properties can be tuned on demand. Prompted by these questions, we have investigated the impact of hexagonal boron nitride encapsulation on the structural and vibrational properties of few layer black phosphorus, using a first-principles method in the framework of density functional theory. We demonstrate that the encapsulation with hexagonal boron nitride imposes biaxial strain on the black phosphorus material, flattening its puckered structure, by decreasing the thickness of the layers via the increase of the puckered angle and the intra-layer P-P bonds. This work exemplifies the evolution of structural parameters in layered materials after the encapsulation process. We find that after encapsulation, phosphorene (single layer black phosphorous) contracts by 1.1% in the armchair direction and stretches by 1.3% in the zigzag direction, whereas few layer black phosphorus mainly expands by up to 3% in the armchair direction. However, these relatively small strains induced by the hexagonal BN, lead to significant changes in the vibrational properties of black phosphorus, with the redshifts of up to 10 cm$^{-1}$ of the high frequency optical mode $A_g^1$. In general, structural changes induced by the encapsulation process open the door to substrate controlled strain engineering in two-dimensional crystals.
description: 8 pages, 5 figures, 1 table
Floquet Topological Phases of Non-Hermitian Systems
Creators: name: Wu, Hong
name: An, Jun-Hong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The non-Hermiticity caused breakdown of the bulk-boundary correspondence (BBC) in topological phase transition was cured by the skin effect for the systems with chiral symmetry and translation invariance. However, periodic driving, as an active tool in engineering exotic topological phases, breaks the chiral symmetry, and the inevitable disorder destroys the translation invariance. Here, we propose a scheme to retrieve the BBC and establish a complete description of the topological phases of the periodically driven non-Hermitian system both with and without the translation invariance. The demonstration of our method in the non-Hermitian Su-Schrieffer-Heeger model shows that exotic non-Hermitian topological phases of widely tunable numbers of edge states and Floquet topological Anderson insulator are induced by the periodic driving and the disorder. Our result supplies a useful way to artificially synthesize exotic phases by periodic driving in the non-Hermitian system.
Healthy & sustainable snacks
Creators: name: Chan, Gwendalen
name: Law, Stephanie
name: Leung, Carol
name: Liu, Tina
name: Singer, Amanda
Publisher: name: The University of British Columbia
Year: 2014

description: Snack foods are frequently associated with an unhealthy and unsustainable image because they are often highly processed and packaged for convenience. The 2013 Healthy and Sustainable Snacks Food System Project of LFS 450 aims to develop an action plan for implementing healthy and sustainable snacks for the community at University of British Columbia (UBC). It was determined that the UBC food outlets considered the most successful in promoting healthy and sustainable snacks include: the Loop Café, Point Grill, and Place Vanier dining hall. The outlets that require the most improvement include: IRC Snack Bar, Neville’s Café and Reboot Café. By doing a first impressions observational survey, we determined what was successful for promoting healthy and sustainable snacks among the chosen outlets. Areas that were identified include: snack availability, pricing, signage visibility, and ambience. Moreover, we gauged the campus community opinion by performing interviews. Using results from the first impressions survey, it was found that successful outlets had clear signage, well displayed healthy options, and an inviting dining environment. The interviews revealed that the UBC community believes healthy and sustainable options are often more expensive. Furthermore, many expressed that food choices from UBC food outlets are expensive and limited in variety. Therefore, many opted to go to other places on campus. Through this project, we discovered that healthy and sustainable snack options are abundant at UBC food outlets, but promotion is lacking. To resolve this issue, we present both short and long term solutions. In the short term, outlets can improve by matching the price of healthy and sustainable snack foods with the mainstream alternatives, and ensure all products have visible signage. Long term suggestions include an outline for the implementation of a yogurt and fresh produce smoothie station as well as a greater variety of fresh fruits. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Simulation of heat transfer and dissipation in targets used in nuclear astrophysics experiments
Creators: name: Bar, Tanmoy
name: Basu, Chinmay
name: Das, Mithun
name: Santra, Apurba Kumar
name: Sen, Swarnendu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: This work presents time-dependent numerical calculations of heat generation and dissipation in targets used in high ion-beam current nuclear astrophysics experiments. The simulation is beneficial for choosing the thickness of targets, maximum ion-beam current and design setup for cooling of such targets. It is found that for the very thin target ($^{27}Al(p,p),^{12}C(p,p)$) heat generation inside target is relatively low and a fair amount of high current (few $μ$A)can be used without any melting issue. But in case of thick targets ($^{27}Al(p,γ),^{12}C(p,γ)$) cooling became essential for the survival of reaction target.
Erica pulchella Houtt.
Creators: name: Wijnands, Dirk Onno
name: Heniger, Johannes
name: Veldkamp, Jan Frederik
name: Fumeaux, Nicolas
name: Callmander, Martin W.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Ericaceae
Erica
Erica pulchella

description: 42. Erica pulchella Houtt.,
Nat. Hist. II(4): Aanwyz. Plaat. [4], 504, tab. 23, fig. 1. 1775.
Lectotypus (designated here by Callmander): SOUTH AFRICA: Cape, Auge s.n. [?] (G-PREL [G00818128]!).
Notes. – Original material is in the Cape herbarium in G-PREL. The only collection there is a good match for the plate and is therefore designated here as the lectotype.
description: Published as part of Wijnands, Dirk Onno, Heniger, Johannes, Veldkamp, Jan Frederik, Fumeaux, Nicolas & Callmander, Martin W., 2017, The botanical legacy of Martinus Houttuyn (1720 - 1798) in Geneva, pp. 155-198 in Candollea 72 (1) on page 174, DOI: 10.15553/c2017v721a11, http://zenodo.org/record/5721887
Beaming as an explanation of the repetition/width relation in FRBs
Creators: name: Connor, L.
name: Miller, M. C.
name: Gardenier, D. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It is currently not known if repeating fast radio bursts (FRBs) are fundamentally different from those that have not been seen to repeat. One striking difference between repeaters and apparent non-repeaters in the CHIME sample is that the once-off events are typically shorter in duration than sources that have been detected two or more times. We offer a simple explanation for this discrepancy based on a selection effect due to beamed emission, in which highly-beamed FRBs are less easily observed to repeat, but are abundant enough to detect often as once-off events. The explanation predicts that there is a continuous distribution of burst duration---not a static bimodal one---with a correlation between repetition rate and width. Pulse width and opening angle may be related by relativistic effects in shocks, where short-duration bursts have small solid angles due to a large common Lorentz factor. Alternatively, the relationship could be a geometric effect where narrow beams sweep past the observer more quickly, as with pulsars. Our model has implications for the FRB emission mechanism and energy scale, volumetric event rates, and the application of FRBs to cosmology.
Additional file 2 of A systematic review of the factors – enablers and barriers – affecting e-learning in health sciences education
Creators: name: Regmi, Krishna
name: Jones, Linda
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 60506 Virology
subject: FOS: Biological sciences

description: Additional file 2. Critical appraisal of included studies (QualSyst tools).
Care and Management of Newborn Calf
Creators: name: *Dhaval Rajgor, Panchabhai Chaudhary, Ravindra Jadav and Birth Patel
Publisher: name: The Science world a Monthly e magazine
Year: 2024

description: Calves play an important role in the development of the dairy sector of the country, as the future of the dairy herd solely depends upon the successful raising of young calves. Management of young calves in these days gaining a lot of importance as there is scarcity in availability of good quality future stock for either a dairy cow farm. Calf-care is not only essential for sustenance of the dairy industry but is also essential for preserving and maintaining our good quality germplasm. Important aspects in calf rearing are health management and proper nutrition. In India majority of the ruminants are reared by small, marginal and landless farmers and most of them do not follow general management practices (Tiwari, 2009). There is a need to make the farmers aware about importance of scientific management practices. The neglected and poor care of calves in these dairies is creating a great damage to the nation in terms of loss of good quality germplasm. Hence there is an immediate and persistent attention is needed especially in large commercial dairy farms about the significance of rearing calves for profitable and high economic returns in any dairy enterprise.
The quantum dynamics of atomic magnets, co-tunneling and dipolar-biased tunneling
Creators: name: Giraud, R.
name: Tkachuk, A. M.
name: Barbara, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Multi-spins tunneling cross-relaxations in an ensemble of weakly-coupled Ho$^{3+}$ ions, mediated by weak anisotropic dipolar interactions, can be evidenced by ac-susceptibility measurements in a high temperature regime. Based on a four-body representation, including the rare-earth nuclear spin, two-ions tunneling mechanisms can be attributed to both dipolar-biased tunneling and co-tunneling processes. The co-reversal involving entangled pairs of magnetic moments is discussed with a particular emphasis, giving new evidences to elucidate the many-body quantum dynamics.
description: 4 figures
Automatic extraction of paraphrastic phrases from medium size corpora
Creators: name: Poibeau, Thierry
Publisher: name: arXiv
Year: 2005
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper presents a versatile system intended to acquire paraphrastic phrases from a representative corpus. In order to decrease the time spent on the elaboration of resources for NLP system (for example Information Extraction, IE hereafter), we suggest to use a machine learning system that helps defining new templates and associated resources. This knowledge is automatically derived from the text collection, in interaction with a large semantic network.
Logistics of using fish from UBC Farm integrated aquaculture on campus
Creators: name: Millar, Michael
name: Kavuma, Edgar Aldwin
name: Chan, Victor
name: Tang, April
name: Lau, Geoffrey
Publisher: name: The University of British Columbia
Year: 2014

description: A rise in global of seafood demand has elicited intensive fishing practices of marine wildlife. Intensive fishing of marine wildlife threatens the ecological sustainability of our aquatic ecosystems. In aspiring to sustain the ecological integrity of our marine ecosystems, we are encouraged to consider alternative methods of fish production. Aquaponics is a land-based, closed fish production system, which is widely regarded as sustainable. Harvesting fish through the use of an aquaponics system is deemed sustainable as the outputs of one biological entity become the inputs of another. This project’s objective was to qualitatively assess the fish demand by UBC food outlets and to determine as whether the fish demanded of UBC food outlets could be met by the UBC Farm’s aquaponics system. Gathering the demand of UBC food outlets considered seafood purchasing patterns, the type of seafood purchased, as well as the logistical aspects of processing fish. To complete these goals, our team organized interviews with key informants, including purchasing managers at UBC, chefs, licensing officers, and other aquaculture producers. Gathering the demand of UBC food outlets facilitated in qualitatively assessing whether the demand for fish existed. Literature reviews were conducted to determine the requirements of a fish processing facility. The correspondence with chefs and purchasing managers at UBC indicated that there is a demand for local and farm-raised fish. Chefs and purchasing mangers at UBC prioritized food safety and Ocean Wise licensing as their major concerns of fish from the UBC Farm. Scenarios for selling seafood products to UBC food outlets and processing fish were discussed to provide feasible options that the UBC Farm could consider for their future operations. This project aimed to provide a framework that the UBC Farm could reference, in furthering their endeavours of an aquaponics initiative. The UBC Farm does have a fish market among UBC food outlets, which we have determined are logistically feasible. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Thermodynamic gauge-theory cascade
Creators: name: Hofmann, Ralf
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is proposed that the cooling of a thermalized SU($N$) gauge theory can be formulated in terms of a cascade involving three effective theories with successively reduced (and spontaneously broken) gauge symmetries, SU($N$) $\to$ U(1)$^{N-1}$ $\to$ Z$_N$. The approach is based on the assumption that away from a phase transition the bulk of the quantum interaction inherent to the system is implicitly encoded in the (incomplete) classical dynamics of a collective part made of low-energy condensed degrees of freedom. The properties of (some of the) statistically fluctuating fields are determined by these condensate(s). This leads to a quasi-particle description at tree-level. It appears that radiative corrections, which are sizable at large gauge coupling, do not change the tree-level picture qualitatively. The thermodynamic self-consistency of the quasi-particle approach implies nonperturbative evolution equations for the associated masses. The temperature dependence of these masses, in turn, determine the evolution of the gauge coupling(s). The hot gauge system approaches the behavior of an ideal gas of massless gluons at asymptotically large temperature. A negative equation of state is possible at a stage where the system is about to settle into the phase of the (spontaneously broken) Z$_N$ symmetry.
description: 25 pages, 6 figures, 1 reference added, minor corrections in text, errors in Sec. 3.2 corrected, PRD version
The Influence of Art Nouveau on Pablo Picasso 1898-1907
Creators: name: Christensen, Judith A.
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Robust excitation and Raman conversion of guided vortices in chiral gas-filled photonic crystal fiber
Creators: name: Davtyan, S.
name: Chen, Y.
name: Frosz, M. H.
name: Russell, P. ST. J.
name: Novoa, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The unique ring-shaped intensity patterns and helical phase fronts of optical vortices make them useful in many applications. Here we report for the first time efficient Raman frequency conversion between vortex modes in twisted hydrogen-filled single-ring hollow core photonic crystal fiber (SR-PCF). High fidelity transmission of optical vortices in untwisted SR-PCF becomes more and more difficult as the orbital angular momentum (OAM) order increases, due to scattering at structural imperfections in the fiber microstructure. In helically twisted SR-PCF, however, the degeneracy between left- and right-handed versions of the same mode is lifted, with the result that they are topologically protected from such scattering. With launch efficiencies of ~75%, a high damage threshold and broadband guidance, these fibers are ideal for performing nonlinear experiments that require the polarization state and azimuthal order of the interacting modes to be preserved over long distances. Vortex coherence waves (VCW) of internal molecular motion, carrying angular momentum, are excited in the gas, permitting the polarization and orbital angular momentum of the Raman bands to be tailored, even in spectral regions where conventional solid-core waveguides are opaque or susceptible to optical damage.
Heat capacity studies of Ce and Rh site substitution in the heavy fermion antiferromagnet CeRhIn_5;: Short-range magnetic interactions and non-Fermi-liquid behavior
Creators: name: Light, B. E.
name: Kumar, Ravhi S.
name: Cornelius, A. L.
name: Pagliuso, P. G.
name: Sarrao, J. L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In heavy fermion materials superconductivity tends to appear when long range magnetic order is suppressed by chemical doping or applying pressure. Here we report heat capacity measurements on diluted alloyes of the heavy fermion superconductor CeRhIn_5;. Heat capacity measurements have been performed on CeRh_{1-y}Ir_{y}In_5; (y <= 0.10) and Ce_{1-x}La_{x}Rh_{1-y}Ir_{y}In_5; (x <= 0.50) in applied fields up to 90 kOe to study the affect of doping and magnetic field on the magnetic ground state. The magnetic phase diagram of CeRh_{0.9}Ir_{0.1}In_5; is consistent with the magnetic structure of CeRhIn_5; being unchanged by Ir doping. Doping of Ir in small concentrations is shown to slightly increase the antiferromagnetic transition temperature T_{N} (T_{N}=3.8 K in the undoped sample). La doping which causes disorder on the Ce sublattice is shown to lower T_{N} with no long range order observed above 0.34 K for Ce_{0.50}La_{0.50}RhIn_5;. Measurements on Ce_{0.50}La_{0.50}RhIn_5; show a coexistence of short range magnetic order and non-Fermi-liquid behavior. This dual nature of the Ce 4f-electrons is very similar to the observed results on CeRhIn_5; when long range magnetic order is suppressed at high pressure.
description: 8 pages, 9 figures
Slavic Art Before Byzantium
Creators: name: Hodzic, Vukosava
name: Turak, Theodore
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Integrable Matrix Models in Discrete Space-Time
Creators: name: Krajnik, Žiga
name: Ilievski, Enej
name: Prosen, Tomaž
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We introduce a class of integrable dynamical systems of interacting classical matrix-valued fields propagating on a discrete space-time lattice, realized as many-body circuits built from elementary symplectic two-body maps. The models provide an efficient integrable Trotterization of non-relativistic $σ$-models with complex Grassmannian manifolds as target spaces, including, as special cases, the higher-rank analogues of the Landau-Lifshitz field theory on complex projective spaces. As an application, we study transport of Noether charges in canonical local equilibrium states. We find a clear signature of superdiffusive behavior in the Kardar-Parisi-Zhang universality class, irrespectively of the chosen underlying global unitary symmetry group and the quotient structure of the compact phase space, providing a strong indication of superuniversal physics.
description: v2, 60 pages, 10 figures, 1 table
Erica splendida Houtt.
Creators: name: Wijnands, Dirk Onno
name: Heniger, Johannes
name: Veldkamp, Jan Frederik
name: Fumeaux, Nicolas
name: Callmander, Martin W.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Ericaceae
Erica
Erica splendida

description: 43. Erica splendida Houtt.,
Nat. Hist. II(4): Aanwyz. Plaat. [4], 519, tab. 23, fig. 3. 1775.
Lectotypus (designated here by Callmander): SOUTH AFRICA: Cape, Auge s.n. [?] (G-PREL [G00818127]!) (Fig. 6).
Notes. – Original material is in the Cape herbarium in G-PREL. The only collection there is a good match for the plate and is therefore designated here as the lectotype (Fig. 6).
description: Published as part of Wijnands, Dirk Onno, Heniger, Johannes, Veldkamp, Jan Frederik, Fumeaux, Nicolas & Callmander, Martin W., 2017, The botanical legacy of Martinus Houttuyn (1720 - 1798) in Geneva, pp. 155-198 in Candollea 72 (1) on page 174, DOI: 10.15553/c2017v721a11, http://zenodo.org/record/5721887
Dark Energy Search with Supernovae
Creators: name: Wang, Yun
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: To determine the nature of dark energy from observational data, it is important that we use model-independent and optimal methods. We should probe dark energy using its density (allowed to be a free function of cosmic time) instead of its equation of state. We should minimize gravitational lensing effect on supernovae by flux-averaging. We need to include complementary data (for example, from the Cosmic Microwave Background [CMB] and large scale structure [LSS]) in a consistent manner to help break the degeneracy between the dark energy density and the matter density fraction. We should push for ambitious future supernova surveys that can observe a large number of supernovae at the highest possible redshifts. I discuss these and other issues that will be important in our quest to unravel the mystery of the nature of dark energy. Current supernova, CMB, and LSS data already rule out dark energy models with dark energy densities that vary greatly with time; with the cosmological constant model providing an excellent fit to the data. A precise measurement of dark energy density as a free function of cosmic time will have a fundamental impact on particle physics and cosmology.
description: 9 pages, 3 color figures, to appear in proceedings of the 6th UCLA Symposium on "Sources and Detection of Dark Matter and Dark Energy in the Universe"
Additional file 1 of A systematic review of the factors – enablers and barriers – affecting e-learning in health sciences education
Creators: name: Regmi, Krishna
name: Jones, Linda
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 60506 Virology
subject: FOS: Biological sciences

description: Additional file 1. Systematic review protocol.
When the disc's away, the stars will play: dynamical masses in the nova-like variable KR Aur with a pinch of accretion
Creators: name: Rodríguez-Gil, P.
name: Shahbaz, T.
name: Torres, M. A. P.
name: Gänsicke, B. T.
name: Izquierdo, P.
name: Toloza, O.
name: Álvarez-Hernández, A.
name: Steeghs, D.
name: van Spaandonk, L.
name: Koester, D.
name: Rodríguez, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We obtained time-resolved optical photometry and spectroscopy of the nova-like variable KR Aurigae in the low state. The spectrum reveals a DAB white dwarf and a mid-M dwarf companion. Using the companion star's $i$-band ellipsoidal modulation we refine the binary orbital period to be $P = 3.906519 \pm 0.000001$ h. The light curve and the spectra show flaring activity due to episodic accretion. One of these events produced brightness oscillations at a period of 27.4 min, that we suggest to be related with the rotation period of a possibly magnetic white dwarf at either 27.4 or 54.8 min. Spectral modelling provided a spectral type of M4-5 for the companion star and $T_{1}=27148 \pm 496$ K, $\log g=8.90 \pm 0.07$, and $\log (\mathrm{He/H})= -0.79^{+0.07}_{-0.08}~~$ for the white dwarf. By simultaneously fitting absorption- and emission-line radial velocity curves and the ellipsoidal light curve, we determined the stellar masses to be $M_1 = 0.94^{+0.15}_{-0.11}~$ $M_\odot$ and $M_2 = 0.37^{+0.07}_{-0.07}~$ $M_\odot$ for the white dwarf and the M-dwarf, respectively, and an orbital inclination of $47^{+1^{\rm o}}_{-2^{\rm o}}$. Finally, we analyse time-resolved spectroscopy acquired when the system was at an $i$-band magnitude of 17.1, about 1.3 mag brighter than it was in the low state. In this intermediate state the line profiles contain an emission S-wave delayed by $\simeq 0.2$ orbital cycle relative to the motion of the white dwarf, similar to what is observed in SW Sextantis stars in the high state.
description: 18 pages, 17 figures, 6 tables, accepted for publication in MNRAS (2020 Feb 19)
Chemical Bonding in Metallic Glasses from Machine Learning and Crystal Orbital Hamilton Population
Creators: name: Ferreira, Ary R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The chemistry (composition and bonding information) of metallic glasses (MGs) is at least as important as structural topology for understanding their properties and production/processing peculiarities. This article reports a machine learning (ML)-based approach that brings an unprecedented "big picture" view of chemical bond strengths in MGs of a prototypical alloy system. The connection between electronic structure and chemical bonding is given by crystal orbital Hamilton population (COHP) analysis; within the framework of density functional theory (DFT). The stated comprehensive overview is made possible through a combination of: efficient quantitative estimate of bond strengths supplied by COHP analysis; representative statistics regarding structure in terms of atomic configurations achieved with classical molecular dynamics simulations; and the smooth overlap of atomic positions (SOAP) descriptor. The study is supplemented by an application of that ML model under the scope of mechanical loading; in which the resulting overview of chemical bond strengths revealed a chemical/structural heterogeneity that is in line with the tendency to bond exchange verified for atomic local environments. The encouraging results pave the way towards alternative approaches applicable in plenty of other contexts in which atom categorization (from the perspective of chemical bonds) plays a key role.
description: This update contains a number of enhancements. The manuscript has been updated after an anonymous review process by a journal whose policies discourage posting material from this process online. Few changes have been done in Sections I, II and III-A; however, Section III-B and IV have undergone significant changes
Vacuum creation of quarks at the time scale of QGP thermalization and strangeness enhancement in heavy-ion collisions
Creators: name: Prozorkevich, A. V.
name: Smolyansky, S. A.
name: Skokov, V. V.
name: Zabrodin, E. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The vacuum parton creation in quickly varying external fields is studied at the time scale of order 1 fm/$c$ typical for the quark-gluon plasma formation and thermalization. To describe the pre-equilibrium evolution of the system the transport kinetic equation is employed. It is shown that the dynamics of production process at times comparable with particle inverse masses can deviate considerably from that based on classical Schwinger-like estimates for homogeneous and constant fields. One of the effects caused by non-stationary chromoelectric fields is the enhancement of the yield of $s\bar{s}$ quark pairs. Dependence of this effect on the shape and duration of the field pulse is studied together with the influence of string fusion and reduction of quark masses.
description: REVTEX, 11pp. incl. 4 figures, to be published in Phys. Lett. B
The Influence of the Classical Tradition on the Early Works of Henri Matisse
Creators: name: Marx, Patricia
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Radiative Electroweak Symmetry-Breaking Revisited
Creators: name: Elias, V.
name: Mann, R. B.
name: McKeon, D. G. C.
name: Steele, T. G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the absence of a tree-level scalar-field mass, renormalization-group methods permit the explicit summation of leading-logarithm contributions to all orders of the perturbative series within the effective potential for $SU(2)\times U(1)$ electroweak symmetry. This improvement of the effective potential function is seen to reduce residual dependence on the renormalization mass scale. The all-orders summation of leading logarithm terms involving the dominant three couplings contributing to radiative corrections is suggestive of a potential characterized by a plausible Higgs boson mass of 216 GeV. However, the tree potential's local minimum at $ϕ=0$ is restored if QCD is sufficiently strong.
description: revtex, 4 pages, 1 eps figure embedded in manuscript. Updated version contains additional comments and corrects minor errors
title: Social Support for Family Caretakers of the Chronically Mentally Ill
Creators: name: Bankes, Gina L.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1992

description: The present study examined the relation between coping style, social support, family member symptom severity, and negative affect. Fifty-one caretakers of chronically mentally ill family members completed a demographic questionnaire, a general appraisal questionnaire, a family member symptom severity questionnaire, the Coping Strategy Indicator, the Social Support Questionnaire, and the Multiple Affect Anxiety Checklist. Caretakers with family members living at home were different than caretakers with family members living away from home (HOME) in several respects. Controlling for HOME, family member symptom severity was related to negative affect, coping strategies were related to negative affect and the Social Support Questionnaire scales, and the Social Support Questionnaire scales were related to negative affect.
title: Critical Education, Vol. 12 No. 7 (2021): Contemporary Educator Movements: Transforming Unions, Schools and Society in North America
title: Contemporary Educator Movements: Transforming Unions, Schools and Society in North America
titleType: AlternativeTitle
Creators: name: Critical Education
Publisher: name: Critical Education
Year: 2021

description: Contemporary Educator Movements: Transforming Unions, Schools and Society in North America Part 1 — Teacher Learning In/Through Social Movements Section Editors: Rhiannon Maton, Erin Dyke, Lauren Ware Stark
description: Introduction: Contemporary Educator Movements What Came Before: Remembering Movements with Philadelphia’s Teacher-Organizers Book Groups in the Social Justice Unionism Movement Interview with Baltimore Teachers' Union member, Keysha Goodwin Activist Educators and the Production, Circulation, and Impact of Social Movement Knowledge
Erigeron capensis Houtt.
Creators: name: Wijnands, Dirk Onno
name: Heniger, Johannes
name: Veldkamp, Jan Frederik
name: Fumeaux, Nicolas
name: Callmander, Martin W.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Erigeron
Erigeron capensis

description: 44. Erigeron capensis Houtt.,
Nat. Hist. II(10): Aanwyz. Plaat. [4], 629, tab. 69, fig. 2. 1779.
≡ Hilliardiella capensis (Houtt.) H. Rob. et al. in PhytoKeys 60: 87. 2016.
Lectotypus (designated here by Callmander): SOUTH AFRICA: Cape, Auge s.n. [?] (G-PREL [G00818097]!).
Notes. – Original material is in the Cape herbarium in G-PREL. The only collection there is a good match for the plate and is designated here as the lectotype.
description: Published as part of Wijnands, Dirk Onno, Heniger, Johannes, Veldkamp, Jan Frederik, Fumeaux, Nicolas & Callmander, Martin W., 2017, The botanical legacy of Martinus Houttuyn (1720 - 1798) in Geneva, pp. 155-198 in Candollea 72 (1) on page 174, DOI: 10.15553/c2017v721a11, http://zenodo.org/record/5721887