cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The redshift evolution of the binary black hole merger rate: a weighty matter
Creators: name: van Son, L. A. C.
name: de Mink, S. E.
name: Callister, T.
name: Justham, S.
name: Renzo, M.
name: Wagg, T.
name: Broekgaarden, F. S.
name: Kummer, F.
name: Pakmor, R.
name: Mandel, I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational wave detectors are starting to reveal the redshift evolution of the binary black hole (BBH) merger rate, $R_{\mathrm{BBH}}(z)$. We make predictions for $R_{\mathrm{BBH}}(z)$ as a function of black hole mass for systems originating from isolated binaries. To this end, we investigate correlations between the delay time and black hole mass by means of the suite of binary population synthesis simulations, COMPAS. We distinguish two channels: the common envelope (CE), and the stable Roche-lobe overflow (RLOF) channel, characterised by whether the system has experienced a common envelope or not. We find that the CE channel preferentially produces BHs with masses below about $30\rm{M}_{\odot}$ and short delay times ($t_{\rm delay} \lesssim 1$Gyr), while the stable RLOF channel primarily forms systems with BH masses above $30\rm{M}_{\odot}$ and long delay times ($t_{\rm delay} \gtrsim 1$Gyr). We provide a new fit for the metallicity specific star-formation rate density based on the Illustris TNG simulations, and use this to convert the delay time distributions into a prediction of $R_{\mathrm{BBH}}(z)$. This leads to a distinct redshift evolution of $R_{\mathrm{BBH}}(z)$ for high and low primary BH masses. We furthermore find that, at high redshift, $R_{\mathrm{BBH}}(z)$ is dominated by the CE channel, while at low redshift it contains a large contribution ($\sim 40\%$) from the stable RLOF channel. Our results predict that, for increasing redshifts, BBHs with component masses above $30\rm{M}_{\odot}$ will become increasingly scarce relative to less massive BBH systems. Evidence of this distinct evolution of $R_{\mathrm{BBH}}(z)$ for different BH masses can be tested with future detectors.
description: 20 pages + appendices, data is available at https://doi.org/10.5281/zenodo.5544170
Deconstruction of city-owned properties : North American policy for construction and demolition waste
Creators: name: Good, Elizabeth
Publisher: name: The University of British Columbia
Year: 2015

description: Deconstructing infrastructure is recognized as an environmentally sustainable method to take down buildings, mitigate waste, and reduce overall environmental impact. However, the economic benefits of deconstruction continue to be contested, resulting in few municipalities formally implementing deconstruction policy. While this report recognizes that numerous factors influence policy, this report seeks to establish the variance in deconstruction practices across North America. This report has a particular focus on British Columbia in an attempt to determine how Vancouver’s proposed deconstruction policy relates to other municipal policy and how the City of Vancouver’s policy could be improved. This report argues that although Vancouver’s deconstruction policy for city-owned infrastructure has yet to be formally executed, Vancouver does have a standard practice for the deconstruction of City-owned facilities and is one of the few leaders of the burgeoning field of deconstruction. Although few cities have developed and implemented binding deconstruction policy, Vancouver has the potential to benefit and learn from Los Angeles’, CA deconstruction policy, which has various targets for different materials. Additional recommendations for the City of Vancouver include: - As a building-owner, the City of Vancouver should implement a minimum target that necessitates recycling and reuse of a certain percentage of material. However, this target should not replace existing audits, which hold buildings to the highest possible standard of deconstruction. - As a building-owner, the City of Vancouver should Implement separate targets for inert and “other” waste to avoid loopholes in deconstruction requirements. - As a regulator, the City of Vancouver should continue to ban particular materials from landfills while simultaneously developing infrastructure that recycles prohibited goods appropriately. - As a regulator, the City of Vancouver should consider placing governmental incentives on non-profitable demolition and construction materials.
title: Education and Later-life Mortality: Evidence from a School Reform in Japan
Creators: name: Masuda, Kazuya
name: Shigeoka, Hitoshi
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2023
Subjects: subject: Education
subject: Later-life mortality
subject: Japan
subject: Regression discontinuity design
subject: 610
subject: 330

description: We examine the mortality effects of a 1947 school reform in Japan, which extended compulsory schooling from primary to secondary school by as much as 3 years. The abolition of secondary school fees also indicates that those affected by the reform likely came from disadvantaged families who could have benefited the most from schooling. Even in this relatively favorable setting, we fail to find that the reform improved later-life mortality up to the age of 87 years, although it significantly increased years of schooling. This finding suggests limited health returns to schooling at the lower level of educational attainment.
description: CINCH working paper series, vol. 2023, no. 02
Symmetry Classification and Universality in Non-Hermitian Many-Body Quantum Chaos by the Sachdev-Ye-Kitaev Model
Creators: name: García-García, Antonio M.
name: Sá, Lucas
name: Verbaarschot, Jacobus J. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spectral correlations are a powerful tool to study the dynamics of quantum many-body systems. For Hermitian Hamiltonians, quantum chaotic motion is related to random matrix theory spectral correlations. Based on recent progress in the application of spectral analysis to non-Hermitian quantum systems, we show that local level statistics, which probe the dynamics around the Heisenberg time, of a non-Hermitian $q$-body Sachdev-Ye-Kitev (nHSYK) model with $N$ Majorana fermions, and its chiral and complex-fermion extensions, are also well described by random matrix theory for $q > 2$, while for $q = 2$, they are given by the equivalent of Poisson statistics. For that comparison, we combine exact diagonalization numerical techniques with analytical results obtained for some of the random matrix spectral observables. Moreover, depending on $q$ and $N$, we identify $19$ out of the $38$ non-Hermitian universality classes in the nHSYK model, including those corresponding to the tenfold way. In particular, we realize explicitly $14$ out of the $15$ universality classes corresponding to non-pseudo-Hermitian Hamiltonians that involve universal bulk correlations of classes ${\rm AI}^\dagger$ and ${\rm AII}^\dagger$, beyond the Ginibre ensembles. These results provide strong evidence of striking universal features in non-unitary many-body quantum chaos, which in all cases can be captured by nHSYK models with $q > 2$.
description: 38 pages, 14 figures, 8 tables. v2: references added, as published
Climate change & forest fires in British Columbia
Creators: name: Roberson, Jeff
Publisher: name: The University of British Columbia
Year: 2015

description: In wake of past suppression practices in British Columbia, paired with anthropogenic induced climate change, more intensive forest fire fuel management is of growing necessity. Strategies aimed to mitigate the chances of uncontrollable, hazardous fires have been recommended which includes fuel management practices, influencing policy changes, educating the public, and additional collection of fire weather data. Regardless of the numerous studies projecting lengthening of fire seasons and increases in areas burned as well as studies refuting these findings and projections, proactive management of forest fire fuels must occur to avoid hazardous, uncontrollable, severe wildfires that threaten communities.
Lévy-noise versus Gaussian-noise-induced Transitions in the Ghil-Sellers Energy Balance Model
Creators: name: Lucarini, Valerio
name: Serdukova, Larissa
name: Margazoglou, Georgios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We study the impact of applying stochastic forcing to the Ghil-Sellers energy balance climate model in the form of a fluctuating solar irradiance. Through numerical simulations, we explore the noise-induced transitions between the competing warm and snowball climate states. We consider multiplicative stochastic forcing driven by Gaussian and $α$-stable Lévy - $α\in(0,2)$ - noise laws, examine the statistics of transition times, and estimate most probable transition paths. While the Gaussian noise case has been carefully studied in a plethora of investigations on metastable systems, much less is known about the Lévy case, especially in the case of high- and infinite-dimensional systems. In the weak noise limit, the expected residence time in each metastable state scales in a fundamentally different way in the Gaussian vs. Lévy noise case with respect to the intensity of the noise. In the former case, the classical Kramers-like exponential law is recovered. In the latter case, power laws are found, with the exponent equal to $-α$, in apparent agreement with rigorous results obtained for additive noise in a related - yet different - reaction-diffusion equation as well as in simpler models. This can be better understood by treating the Lévy noise as a compound Poisson process. The transition paths are studied in a projection of the state space and remarkable differences are observed between the two different types of noise. The snowball-to-warm and the warm-to-snowball most probable transition path cross at the single unstable edge state on the basin boundary. In the case of Lévy noise, the most probable transition paths in the two directions are wholly separated, as transitions apparently take place via the closest basin boundary region to the outgoing attractor. This property can be better elucidated by considering singular perturbations to the solar irradiance.
description: 36 pages, 8 figures
Ovarian hyperstimulation syndrome in an egg donor
Creators: name: BotÃ­A GonzÃ¡Lez, Carmen
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Genital / Reproductive system female
subject: Ultrasound
subject: Education
subject: Drugs / Reactions

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 25 years
description: Clinical History: A 25 years old female suffering from abdominal pain and distension, nausea and vomiting after ovarian induction in order to donate eggs the day before, with no other relevant physical signs or symptoms or analitic alterations. Final Diagnosis: Ovarian hyperstimulation syndrome.
Closure properties of $\varinjlim\mathcal C$
Creators: name: Positselski, Leonid
name: Prihoda, Pavel
name: Trlifaj, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Rings and Algebras (math.RA)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: Let $\mathcal C$ be a class of modules and $\mathcal L = \varinjlim \mathcal C$ the class of all direct limits of modules from $\mathcal C$. The class $\mathcal L$ is well understood when $\mathcal C$ consists of finitely presented modules: $\mathcal L$ then enjoys various closure properties. We study the closure properties of $\mathcal L$ in the general case when $\mathcal C \subseteq \mathrm{Mod-}R$ is arbitrary. Then we concentrate on two important particular cases, when $\mathcal C = \operatorname{add} M$ and $\mathcal C = \operatorname{Add} M$, for an arbitrary module $M$. In the first case, we prove that $\varinjlim \operatorname{add} M = \{ N \in \mathrm{Mod-} R \mid \exists F \in \mathcal F_S: N \cong F \otimes_S M \}$ where $S = \operatorname{End} M$, and $\mathcal F_S$ is the class of all flat right $S$-modules. In the second case, $\varinjlim \operatorname{Add} M = \{ \mathfrak F \odot _{\mathfrak S} M \mid \mathfrak F \in \mathcal F_{\mathfrak S} \}$ where $\mathfrak S$ is the endomorphism ring of $M$ endowed with the finite topology, $\mathcal F_{\mathfrak S}$ is the class of all right $\mathfrak S$-contramodules that are direct limits of direct systems of projective right $\mathfrak S$-contramodules, and $\odot_{\mathfrak S}$ denotes the contratensor product. For various classes of modules $\mathcal D$, we show that if $M \in \mathcal D$ then $\varinjlim \operatorname{add} M = \varinjlim \operatorname{Add} M$ (e.g., when $\mathcal D$ consists of pure projective modules), but the equality for an arbitrary module $M$ remains open. Finally, we deal with the question of whether $\varinjlim \operatorname{Add} M = \widetilde{\operatorname{Add} M}$ where $\widetilde{\operatorname{Add} M}$ is the class of all pure epimorphic images of direct sums of copies of a module $M$. We show that the answer is positive in several particular cases, but it is negative in general.
description: 59 pages; v.2: a new author joined, major improvements and additions in Sections 5 and 6, new Section 8 inserted, related changes in the final section; v.3: small improvements, misprints corrected
title: Die Bedeutung von Eisen und Stahl für die Circular Economy
Creators: name: Deike, Rüdiger
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2023
Subjects: subject: Circular Economy
subject: 620

description: Im Rahmen der nationalen Strategie zur nachhaltigen Entwicklung in Deutschland [1] wurden die 17 Nachhaltigkeitsziele (SDG:Sustainable Development Goals) der UN von der Bundesregierung übernommen, zu denen unter anderem ein verantwortungsvoller Verbrauch von Rohstoﬀen und entsprechend verantwortungsvolle sowie nachhaltige Produktionsmodelle (Ziel Nr. 12) gehören, die es ermöglichen die natürlichen Ressourcen heute und für die Zukun zu schützen. Mit dem Circular Economy Action Plan [2] der EU kommt die Bedeutung der Nachhaltigkeit und die Entwicklung nachhaltiger Prozesse in den Fokus der europäischen Politik. [1] https://www.bundesregierung.de/breg-de/themen/nachhaltigkeitspolitik/die-deutsche nachhaltigkeitsstrategie-318846 [2] https://environment.ec.europa.eu/strategy/circular-economy-action-plan_en
title: Die Bedeutung der Metalle in einer Circular Economy
Creators: name: Deike, Rüdiger
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2022
Subjects: subject: Circular Economy
subject: 620

description: Als die 17 Ziele für nachhaltige Entwicklung 2015 auf der UN-Vollversammlung verabschiedet wurden, waren sie noch als Vision formuliert, wie eine bessere Welt mit mehr Wohlstand und weniger Ressourcenverbrauch erreicht werden kann, jetzt hat eine Zeit begonnen, in der Teile dieser Vision beginnen, in der EU Gesetz zu werden. So wichtig die Betonung der Nachhaltigkeit und die Förde-rung geeigneter Wege zu ihrer Verwirklichung auch sind,es bestehen gewisse Bedenken, ob das, was in den Verwaltungen politischer Institutionen und Unternehmen der Finanzindustrie relativ einfach beschrieben, rechtlich deﬁniert und dann beschlossen wird, auch immer technisch machbar ist. Denn auch eine Kreislaufwirtschaft hat wissenschaftlich-technische Grenzen, die im Sinne der Wirtschaftichkeit akzeptiert werden müssen. Die Entwicklungen im Bereich der Metalle zeigen, dass in den traditionellen Industriegesellschaften in Europa und Japan zu Beginn der 1970er Jahre ein Strukturwandel von der Industrie- zur Dienstleistungsgesellschaff stattgefunden hat, in dessen Folge eine Entmaterialisierung des globalen Wirtschaftswachstums in der Vergangenheit in ausgewählten Bereichen temporär schon einmal zu beobachten war. Mit der Industrialisierung in China endete diese Entwicklung und es hat wieder ein exponentielles Wachstum mit extremen Rohstoﬀverbräuchen und Preissteigerungen in der ersten Dekade dieses Jahrhunderts stattgefunden,wobei davon auszugehen ist, dass diese extrem rasante Entwicklung weitgehend vorüber ist und sehr wahrscheinlich in den nächsten zwei Jahrzehnten ein Strukturwandel der Wirtschaft erfolgen wird. Das Ziel für eine nachhaltige Zukunft ist vor allem, globalen Wohlstand durch Wirtschaftswachstum zu generieren und dabei möglichst wenig energetische und nicht-energetische Rohstoﬀe zu verbrauchen. Es werden neue Geschäftsfelder erschlossen, in denen Produkte mit entsprechenden Qualitätssicherungsgarantien aufgearbeitet und als Refurbished-Produkte wieder auf den Markt gebracht werden. Die künftige Entwicklung auf den globalen Rohstoﬀmärkten wird kurz- bis mittelfristig aber dadurch bestimmt, wie sich die wirtschaftliche Entwicklung in China vollzieht. Es ist davon auszugehen, dass sich China in den nächsten Jahren zu einer Dienstleistungsgesellschaft entwickeln wird. Infolge dieser Entwicklung sind ähnliche Auswirkungen auf den Rohstoﬀverbrauch zu erwarten, wie sie in den traditionellen Industrieländern seit Anfang der 70er Jahre stattgefunden haben, so dass kurz- bis mittelfristig mit einem moderaten Anstieg des Rohstoﬀverbrauchs in der Welt zu rechnen ist.
ZAMONAVIY DARSLIKLAR TA`LIM SIFATINING OLDIGA QO`YILGAN TALABLARI
Creators: name: Nisanbayeva, Akmaral
name: Abdukadirova, Asel
Publisher: name: Zenodo
Year: 2025

description: Mazkur maqolada o‘zbekiston respublikasida ta’lim sifatini oshirish borasida “Milliy dastur”ning “Savod o‘rgatish” bo‘limining avvalgi dasturlardan farqi qiyosiylanadi. Bu dastur asosida yaratilgan “Alifbe” darsligi tahlil qilinadi.
Generation of entangled photons with a second-order nonlinear photonic crystal and a beam splitter
Creators: name: Azuma, Hiroo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss the generation of entangled photons using a nonlinear photonic crystal and beam splitter. In our method, the photonic crystal is assumed to be composed of a material with a large second-order nonlinear optical susceptibility $χ^{(2)}$. Our proposal relies on two facts: (1) A nonlinear photonic crystal changes coherent incident light into squeezed light. (2) A beam splitter transforms the squeezed light into entangled light beams flying in two different directions. We estimate the yield efficiency of pairs of entangled photons per pulse of the very weak coherent light for our method at $0.0783$ for a specific concrete example. Our method is more effective because the conversion efficiency (entangled biphotons per incident pump photons) in the spontaneous parametric downconversion is of the order of $4\times 10^{-6}$. The only drawback is that it requires very fine tuning of the frequency of signal photons fed into the photonic crystal; for example, an adjustment is given by $Δν=3.11\times 10^{8}$ Hz for the signal light of $ν=3.23\times 10^{14}$ Hz. We investigate the application of entangled photons produced by our method to the BB84 quantum key distribution protocol, and we explore how to detect an eavesdropper. We suggest that our method is promising for decoy-state quantum key distribution using weak coherent light.
description: 23 pages, 9 eps figures, latex2e; v2: A new section about performances of realstic setups is added
Quantum fields on semi-globally hyperbolic space-times
Creators: name: Janssen, Daan Willem
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We introduce a class of space-times modeling singular events such as evaporating black holes and topology changes, which we dub as semi-globally hyperbolic space-times. On these space-times we aim to study the existence of reasonable quantum field theories. We establish a notion of linear scalar quantum field theories on these space-times, show how such a theory might be constructed and introduce notions of global dynamics on these theories. Applying these constructions to both black hole evaporation and topology changing space-times, we find that existence of algebras can be relatively easily established, while the existence of reasonable states on these algebras remains an unsolved problem.
description: 36 pages, 5 figures; added references in introduction, removed unnecessary assumption from definition 2.4, fixed some typo's
UBC food trucks : UBCFSP final report
Creators: name: Chien, William
name: Liu, Felix
name: Lin, Jenny
name: Lobato, Valeria
name: Waldman, Elliott
Publisher: name: The University of British Columbia
Year: 2015

description: Objective: To investigate possible options with the goal of enhancing the services of food trucks (The Dog House, Hungry Nomad, and Roaming Bowl). The main focus will be emphasized on the necessity of incorporating breakfast option into the current menu and allocating the food trucks to suitable locations on campus. Methods and Results: A survey consisting of 13 questions was created and conducted via online or person-to-person format. Conclusion and Discussion: We found that while most people were aware of the food trucks existence, most had never tried the food from any of the trucks. We found this to be due to observed high-prices and time-constraints.
Character-level HyperNetworks for Hate Speech Detection
Creators: name: Wullach, Tomer
name: Adler, Amir
name: Minkov, Einat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The massive spread of hate speech, hateful content targeted at specific subpopulations, is a problem of critical social importance. Automated methods of hate speech detection typically employ state-of-the-art deep learning (DL)-based text classifiers-large pretrained neural language models of over 100 million parameters, adapting these models to the task of hate speech detection using relevant labeled datasets. Unfortunately, there are only a few public labeled datasets of limited size that are available for this purpose. We make several contributions with high potential for advancing this state of affairs. We present HyperNetworks for hate speech detection, a special class of DL networks whose weights are regulated by a small-scale auxiliary network. These architectures operate at character-level, as opposed to word or subword-level, and are several orders of magnitude smaller compared to the popular DL classifiers. We further show that training hate detection classifiers using additional large amounts of automatically generated examples is beneficial in general, yet this practice especially boosts the performance of the proposed HyperNetworks. We report the results of extensive experiments, assessing the performance of multiple neural architectures on hate detection using five public datasets. The assessed methods include the pretrained language models of BERT, RoBERTa, ALBERT, MobileBERT and CharBERT, a variant of BERT that incorporates character alongside subword embeddings. In addition to the traditional setup of within-dataset evaluation, we perform cross-dataset evaluation experiments, testing the generalization of the various models in conditions of data shift. Our results show that the proposed HyperNetworks achieve performance that is competitive, and better in some cases, than these pretrained language models, while being smaller by orders of magnitude.
title: Der Streit, Episode 16 - Latour & Schultz: Ökologische Klasse
Creators: name: Armbruster, André
name: Seyfert, Robert
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2023
Subjects: subject: Podcast
subject: Soziologie
subject: Review
subject: Besprechungen
subject: 300

description: Der Streit – Podcast über neue soziologische Literatur. Mit Robert Seyfert und André Armbruster. In der Sommeredition von Der Streit besprechen wir das letzte Buch von Bruno Latour, das er zusammen mit Nikolaj Schultz verfasst hat: „Zur Entstehung einer ökologischen Klasse. Ein Memorandum“ (2022, Suhrkamp). Wir streiten uns über die Erwartungen an das Buch, diskutieren, ob Werkimmanenz oder die Eigenständigkeit des Buches vorgeht und was denn nun innovativ an der Ökologischen Klasse von Latour und Schultz ist. + + + „Zur Entstehung einer ökologischen Klasse. Ein Memorandum“ beim Suhrkamp-Verlag: https://www.suhrkamp.de/buch/zur-entstehung-einer-oekologischen-klasse-t-9783518029794
description: Der Streit - Über neue soziologische Literatur: Podcast
Representation and modeling of charged particle distributions in tokamaks
Creators: name: Bierwage, Andreas
name: Fitzgerald, Michael
name: Lauber, Philipp
name: Salewski, Mirko
name: Kazakov, Yevgen
name: Štancar, Žiga
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Experimental diagnostics, analysis tools and simulations represent particle distributions in various forms and coordinates. Algorithms to manage these data are needed on platforms like the ITER Integrated Modelling & Analysis Suite (IMAS), performing tasks such as archiving, modeling, conversion and visualization. A method that accomplishes some of the required tasks for distributions of charged particles with arbitrarily large magnetic drifts in axisymmetric tokamak geometry is described here. Given a magnetic configuration, we first construct a database of guiding center orbits, which serves as a basis for representing particle distributions. The orbit database contains the geometric information needed to perform conversions between arbitrary coordinates, modeling tasks, and resonance analyses. Using that database, an imported or newly modeled distribution is mapped to an exact equilibrium, where the dimensionality is reduced to three constants of motion (CoM). The orbit weight is uniquely given when the input is a true distribution: one that measures the number of physical particles per unit of phase space volume. Less ideal inputs, such as distributions estimated without drifts, or models of particle sources, can also be processed. As an application example, we reconstruct the drift-induced features of a distribution of fusion-born alpha particles in a large tokamak, given only a birth profile, which is not a function of the alpha's CoM. Repeated back-and-forth transformations between CoM space and energy-pitch-cylinder coordinates are performed for verification and as a proof of principle for IMAS.
description: 27 pages, 21 figures
Green College nutritional assessment
Creators: name: Eurchuk, Abbey
name: Norgaard, Amy
name: Wong, Amy
name: Malek, Elmira
name: Sham, Carmen
name: Worden, Julie
Publisher: name: The University of British Columbia
Year: 2015

description: A nutritional assessment was conducted for the meal plan at Green College in UBC. Green College is residents which houses and provides meals for 96 graduate students across a variety of academic fields. We conducted a number of interviews with residents and chefs to gain insight into the types of nutritional concerns and the barriers that prevent change; a survey to measure the nutritional perceptions of residents; and a nutritional analysis of four meals to determine the fat, sodium, iron and caloric content of the meals. The survey response rate was 75%. The major concern among residents was excess fat (44%), sodium (36%) and sugar (32%) in the meals. Minor concerns included inadequate iron (19%) and excess dairy (13%). Portion sizes were reported to be too large; with only 36% of respondents stating that portion size was just right or too small. The nutritional analysis revealed that for the four meals analyzed iron content was within the recommended ranges for both sexes, sodium was over the 2300 mg UL in half of the recipes, and fat content was within the DRI for both sexes, with the exception of the first vegetarian meal for females. Residents’ perception of the meals reflected both the nutritional content of the meals and common Canadian perceptions and concerns of nutrition. Low survey response rates were determined to be a major barrier for implementing change in the recipes. 22% of respondents reported that they never complete the survey, while only 30% of respondents reported completing the survey on a regular basis (3-4 times a month). Motivation to complete the survey included informing the kitchen of likes and dislikes, making requests and a feeling of personal responsibility. Those who reported to respond rarely or never stated that there was either no motivation or they were discouraged as they felt that the feedback was not being implemented or acknowledged. A number of leverage points for change were identified. We have indicated that communication between residents and chefs is key, weekly surveys should be accompanied by some sort of follow up from the chefs to acknowledge concerns. This may included providing residents with written or verbal notification of the concerns that they have addressed. For GC staff we recommended sauce on the side, offering a half portion option, a standardized serving scoop, low fat and low sodium substitutions when possible and simpler meals. For the residents we recommended implementing a Canadian food guide poster in the dining hall for their reference. We also recommend that residents be aware and mindful of portion size and their own nutritional needs. An informational poster (see Appendix B) was provided to the residents so that they could improve their food choices, highlighting ways to increase iron absorption and limit caloric intake. Future project possibilities include collaboration with the UBC dietetics program.
Shifted Brownian Fluctuation Game
Creators: name: Kim, Song-Kyoo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: This article analyzes the behavior of a Brownian fluctuation process under a mixed strategic game setup. A variant of a compound Brownian motion has been newly proposed, which is called the Shifted Brownian Fluctuation Process to predict the turning points of a stochastic process. This compound process evolves until it reaches one step prior to the turning point. The Shifted Brownian Fluctuation Game has been constructed based on this new process to find the optimal moment of actions. Analytically tractable results are obtained by using the fluctuation theory and the mixed strategy game theory. The joint functional of the Shifted Brownian Fluctuation Process is targeted for transformation of the first passage time and its index. These results enable us to predict the moment of a turning point and the moment of actions to obtain the optimal payoffs of a game. This research adapts the theoretical framework to implement an autonomous trader for value assets including stocks and cybercurrencies.
title: AISS - Autonomous Inland and Short Sea Shipping Conference
Creators: name: Shipping, Competence
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2021
Subjects: subject: 620

description: The Autonomous Inland and Short Sea Shipping Conference was established in 2019 as an annual conference. The conference promotes technical and scientific exchange among industry, academia and authorities in the fields of autonomous inland and short sea shipping as well as port logistics, smart waterborne logistics and related subjects.
title: AISS 2021: Autonomous Inland and Short Sea Shipping Conference, 2nd and 3rd November 2021, Duisburg/Germany
Creators: name: Competence Centre For Autonomous Inland And Short Sea Shipping
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2021
Subjects: subject: 620

description: AISS 2021: Book of Abstracts.
description: AISS - Autonomous Inland and Short Sea Shipping Conference, vol. 2021
An Evaluation of Biofield Treatment on Thermal, Physical and Structural Properties of Cadmium Powder
Creators: name: Trivedi, Mahendra
Publisher: name: SMN - The ScienceMedia Network
Year: 2016
Subjects: Natural Sciences
Chemistry

description: Cadmium is widely utilized in nickel-cadmium batteries, stabilizers, and coating applications due to its versatile physico-chemical properties. The aim of present study was to evaluate the impact of biofield treatment on atomic, thermal, and physical properties of cadmium powder. The cadmium powder was divided into two groups, one group as control and another group as treated. The treated group received Mr. Trivedi’s biofield treatment. Control and treated samples were characterized using X-ray diffraction (XRD), differential scanning calorimetry (DSC), particle size analyzer, surface area analyzer, and scanning electron microscopy (SEM). XRD results showed significant alteration in lattice parameter, unit cell volume, densities, nuclear charge per unit volume, and atomic weight in treated cadmium powder as compared to control. Furthermore, crystallite size was significantly reduced upto 66.69% in treated cadmium as compared to control. DSC analysis results showed that the latent heat of fusion of the treated cadmium powder was considerably reduced by 16.45% as compared to control. Particle size data revealed that average particle size (d50) of treated cadmium powder was significantly reduced by 47.79 % as compared to the control. In addition, the surface area of treated cadmium powder was substantially enhanced by 156.36% as compared to control. Surface morphology observed by SEM showed the more facets and fractured surface with satellite boundaries in treated cadmium powder as compared to control. These findings suggest that biofield treatment has significantly altered the atomic, thermal and physical properties of cadmium.
title: AISS 2022: Autonomous Inland and Short Sea Shipping Conference, 19th and 20th September 2022, Duisburg/Germany
Creators: name: Competence Centre For Autonomous Inland And Short Sea Shipping
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2022
Subjects: subject: 620

description: AISS 2022: Book of Abstracts.
description: AISS - Autonomous Inland and Short Sea Shipping Conference, vol. 2022
Supplementary document for Adaptive Optics Optical Coherence Tomography and Scanning Laser Ophthalmoscopy system for in vivo mouse retina imaging - 6166392.pdf
Creators: name: Zhang, Pengfei
name: Wahl, Daniel
name: Mocci, Jacopo
name: Bonora, Stefano
name: Sarunic, Marinko
name: Zawadzki, Robert
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Vision Science

description: Suplemental Document
Introducing vortices in the continuum using direct and indirect methods
Creators: name: Asmaee, Zahra
name: Deldar, Sedigheh
name: Kiamari, Motahareh
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Inspired by direct and indirect maximal center gauge methods which confirm the existence of vortices in lattice calculations and by using the connection formalism, we show that under some appropriate gauge transformations vortices and chains appear in the QCD vacuum of the continuum limit. In the direct method, by applying center gauge transformation and \textquotedblleft center projection,\textquotedblright QCD is reduced to a gauge theory including vortices, which corresponds to the non-trivial first homotopy group $Π_1\left( \text{SO}(3)\right) =Z_2.$ On the other hand, using the indirect method, in addition to the center gauge transformation and \textquotedblleft center projection,\textquotedblright an initial step called Abelian gauge transformation and then Abelian projection are applied. Therefore, instead of single vortices, chains that contain monopoles and vortices appear in the theory.
description: 16 pages, 8 figures
Heat Kernel, Spectral Functions and Anomalies in Weyl Semimetals
Creators: name: Ivanov, A. V.
name: Kurkov, M. A.
name: Vassilevich, D. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Being motivated by applications to the physics of Weyl semimetals we study spectral geometry of Dirac operator with an abelian gauge field and an axial vector field. We impose chiral bag boundary conditions with variable chiral phase $θ$ on the fermions. We establish main properties of the spectral functions which ensure applicability of the $ζ$ function regularization and of the usual heat kernel formulae for chiral and parity anomalies. We develop computational methods, including a perturbation expansion for the heat kernel. We show that the terms in both anomalies which include electromagnetic potential are independent of $θ$.
description: 19 pages
Effective acetylene length dependence of the elastic properties of different kinds of graphynes
Creators: name: Kanegae, Guilherme B.
name: Fonseca, Alexandre F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Graphyne is a planar network of connected carbon chains, each formed by $n$ acetylene linkages. Uncountable ways to make these connections lead to uncountable structural graphyne families (GFs). As the synthesis of graphynes with $n > 1$ has been reported in literature, it is of interest to find out how their physical properties depend on $n$ for each possible GF. Although literature already present specific models to describe the dependence on $n$ of the elastic properties of specific GFs, there is not yet enough amount of data for the physical properties of different graphynes with different values of $n$. Based on fully atomistic molecular dynamics simulations, the Young's modulus, shear modulus, linear compressibility and Poisson's ratio of 10 graphyne members of 7 different GFs are calculated. A simple elastic model consisting of a serial combination of $n$ springs is proposed to describe the dependence on $n$ of the elastic properties of these 7 GFs. We show that except for the Poisson's ratio, this simple unique elastic model is able to numerically describe, with good precision, the Young's modulus, shear modulus and linear compressibility of all different graphynes, including anisotropy and negative values of linear compressibility of some GFs.
description: 8 figures, 1 table and supplementary material included
Variation in dark-eyed Junco (Junco hyemalis) nest mass and nest size across an elevational gradient in Southeastern British Columbia
Creators: name: Lee, Joanna K.
Publisher: name: The University of British Columbia
Year: 2015

description: I explored the variation in dark-eyed junco (Junco hyemalis) nest mass and nest size across an elevational gradient in Revelstoke, BC. I predicted that mean monthly temperature during the breeding season would be lower at high elevation compared to low elevation. I also predicted that nest mass and external diameter would be greater at higher elevation compared to low elevation, while there would be no elevational difference in internal cup diameter or internal cup depth. Results show that high elevation temperatures were significantly colder than low elevation temperatures throughout the breeding season (P<0.005) but nest mass and external diameter were not different. Nests at one of the two low elevation sites were heavier and wider externally than those at both the single high elevation site and the second low elevation site (P<0.005), suggesting that factors other than temperature may influence nest construction. When comparing nest mass and dimensions in Revelstoke with nests elsewhere in North America, I found no apparent trends in mass, external diameter, internal diameter or internal cup depth, suggesting that as a ground nesting species, dark-eyed juncos may modify nest construction in relation to temperature gradients less than has been observed in other species. An unexpected eight tree nests were discovered at high elevation during the 2014 field season but not during the 2013 field season, indicating that dark-eyed juncos can inter- and intra-seasonally alter their nesting behavior depending on site conditions. Further research on nest composition and placement with relation to a broader suite of environmental factors may provide better models on the drivers of nest construction along elevational and environmental gradients.
High-performance green and blue quantum-dot light-emitting diodes with eliminated charge leakage
Creators: name: Deng, Yunzhou
name: Peng, Feng
name: Lu, Yao
name: Zhu, Xitong
name: Jin, Wangxiao
name: Qiu, Jing
name: Dong, Jiawei
name: Hao, Yanlei
name: Di, Dawei
name: Gao, Yuan
name: Sun, Tulai
name: Wang, Linjun
name: Ying, Lei
name: Huang, Fei
name: Jin, Yizheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Quantum-dot light-emitting diodes (QD-LEDs) promise a new generation of efficient, low-cost, large-area, and flexible electroluminescent devices. However, the inferior performance of green and blue QD-LEDs is hindering the commercialization of QD-LEDs in display and solid-state lighting. Here, we demonstrate best-performing green and blue QD-LEDs with ~100% conversion of the injected charge carriers into emissive excitons. Key to this success is eliminating electron leakage at the organic/inorganic interface by using hole-transport polymers with low electron affinity and reduced energetic disorder. Our devices exhibit record-high peak external quantum efficiencies (28.7% for green, 21.9% for blue), exceptionally high efficiencies in wide ranges of luminance, and unprecedented stability (T95 lifetime: 580,000 h for green, 4,400 h for blue). The overall performance surpasses previously reported solution-processed green and blue LEDs.
title: membra(I)nes: Bericht zur 12. Jahrestagung der Fachgesellschaft Gender Studies vom 15. bis zum 17. Juni 2023 in Halle und Leipzig
Creators: name: Beaufaÿs, Sandra
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2023
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2023, no. 52, p. 63
title: Multidimensionale Geschlechterungleichheiten im akademischen Mittelbau: Bericht zum Workshop am 16. Juni 2023 an der Universität Duisburg-Essen
Creators: name: Basler, Hayley
name: Kahraman, Büşra
name: Klueß, Malina
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2023
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2023, no. 52, p. 68
Topology optimization for the design of porous electrodes
Creators: name: Roy, Thomas
name: de Troya, Miguel A. Salazar
name: Worsley, Marcus A.
name: Beck, Victor A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optimization and Control (math.OC)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: G.1.6; G.1.8; J.6.1
subject: 35Q93, 49M41, 74P15, 35Q92

description: Porous electrodes are an integral part of many electrochemical devices since they have high porosity to maximize electrochemical transport and high surface area to maximize activity. Traditional porous electrode materials are typically homogeneous, stochastic collections of small scale particles and offer few opportunities to engineer higher performance. Fortunately, recent breakthroughs in advanced and additive manufacturing are yielding new methods to structure and pattern porous electrodes across length scales. These architected electrodes are emerging as a promising new technology to continue to drive improvement; however, it is still unclear which structures to employ and few tools are available to guide their design. In this work we address this gap by applying topology optimization to the design of porous electrodes. We demonstrate our framework on two applications: a porous electrode driving a steady Faradaic reaction and a transiently operated electrode in a supercapacitor. We present computationally designed electrodes that minimize energy losses in a half-cell. For low conductivity materials, the optimization algorithm creates electrode designs with a hierarchy of length scales. Further, the designed electrodes are found to outperform undesigned, homogeneous electrodes. Finally, we present three-dimensional porous electrode designs. We thus establish a topology optimization framework for designing porous electrodes.
description: 21 pages, 14 figures
title: Frauen in der Physikgeschichte des 20. Jahrhunderts: der andere Blick Frauen in der Physikgeschichte des 20. Jahrhunderts: Bericht zum Workshop am 6. und 7. Juni 2023 an der Universität Siegen
Creators: name: Reichenberger, Andrea
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2023
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2023, no. 52, p. 70
Biranvand et al. (2024)_supplementary material.xlsx
Creators: name: Biranvand, Amir
name: Fekrat, Lida
name: Vĕtrovec, Jaroslav
name: Ghobari, Hamed
name: Hamidi, Elnaz
name: Khormizi, Mehdi Zare
name: Azadbakht, Nader
name: Nedvĕd, Oldřich
name: Romasi, Fatemeh
name: Ceryngier, Piotr
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310913
subject: Invertebrate biology

description: Checklist of ladybird beetles (Coleoptera: Coccinellidae) of Iran, with reports of occurrence of each species in individual Iranian provinces indicated
title: Eine Frage des Geschlechts? Islamisch-theologische Perspektiven für eine gendergerechte Theologie der Gegenwart: Bericht zur Tagung vom 11. bis zum 13. Mai 2023 an der Universität Münster
Creators: name: Azouaghe, Botaina
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2023
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2023, no. 52, p. 72