cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Anisotropy of Thermal Conductivity of Free-Standing Reduced Graphene Oxide Films Annealed at High Temperature
Creators: name: Renteria, J. D.
name: Ramirez, S.
name: Malekpour, H.
name: Alonso, B.
name: Centeno, A.
name: Zurutuza, A.
name: Cocemasov, A. I.
name: Nika, D. L.
name: Balandin, A. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigated thermal conductivity of free-standing reduced graphene oxide films subjected to a high-temperature treatment of up to 1000 C. It was found that the high-temperature annealing dramatically increased the in-plane thermal conductivity, K, of the films from 3 W/mK to 61 W/mK at room temperature. The cross-plane thermal conductivity, Kc, revealed an interesting opposite trend of decreasing to a very small value of 0.09 W/mK in the reduced graphene oxide films annealed at 1000 C. The obtained films demonstrated an exceptionally strong anisotropy of the thermal conductivity, K/Kc ~ 675, which is substantially larger even than in the high-quality graphite. The electrical resistivity of the annealed films reduced to 1 - 19 Ohms/sq. The observed modifications of the in-plane and cross-plane thermal conductivity components resulting in an unusual K/Kc anisotropy were explained theoretically. The theoretical analysis suggests that K can reach as high as ~500 W/mK with the increase in the sp2 domain size and further reduction of the oxygen content. The strongly anisotropic heat conduction properties of these films can be useful for applications in thermal management.
description: 28 pages; 6 figures
Dark Energy and Normalization of the Cosmological Wave Function
Creators: name: Huang, Peng
name: Huang, Yue
name: Li, Miao
name: Li, Nan
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Dark energy is investigated from the perspective of quantum cosmology. It is found that, together with an appropriate normal ordering factor $q$, only when there is dark energy then can the cosmological wave function be normalized. This interesting observation may require further attention.
description: Title changed, match the published version
(102474) Mary Jane Stanley
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
New one-parameter models of dynamical particles in spatially flat FLRW space-times
Creators: name: Cotaescu, Ion I.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: New one-parameter models of non-rotating dynamical particles are derived as isotropic solutions of Einstein's equations with perfect fluid in space-times with FLRW asymptotic behaviour generalizing thus the models proposed recently in [I. I. Cot\u aescu, Eur. Phys. J. C (2022) 82:86]. These particles are produced by central singularities of the fluid density but without changing the pressure of the asymptotic FLRW space-times. The principal features of these models are investigated using a brief graphical analysis for pointing out the role of the new free parameter. The conclusion is that this gives rise to families of models which behave as non-rotating black holes in the physical space domain bordered by the black hole and cosmological horizons.
description: 15 pages, 5 figures
New nanomaterial design principles for biomimics
Creators: name: Georgiou, Panagiotis G.
name: Laezza, Antonio
name: Baker, Alexander N.
name: Richards, Sarah-Jane
name: Kontopoulou, Ioanna
name: Congdon, Thomas R.
name: Walker, Marc
name: Gibson, Matthew I.
Publisher: name: Zenodo
Year: 2020

description: Poster presented at the Macro Group UK's Young Researchers in Macromolecules Meeting 2020, held online on 29th-30th June.
Stretched Exponential Relaxation of Glasses at Low Temperature
Creators: name: Yu, Yingtian
name: Wang, Mengyi
name: Zhang, Dawei
name: Wang, Bu
name: Sant, Gaurav
name: Bauchy, Mathieu
Publisher: name: arXiv
Year: 2015
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The question of whether glass continues to relax at low temperature is of fundamental and practical interest. Here, we report a novel atomistic simulation method allowing us to directly access the long-term dynamics of glass relaxation at room temperature. We find that the potential energy relaxation follows a stretched exponential decay, with a stretching exponent $β= 3/5$, as predicted by Phillips' diffusion-trap model. Interestingly, volume relaxation is also found. However, it is not correlated to the energy relaxation, but is rather a manifestation of the mixed alkali effect.
Characterization of Nano ink printing with XYZ micro plotter
Creators: name: Lin, Liang-Ting
Publisher: name: Washington State University
Year: 2022

description: The use of nanomaterials in printing technology has gained attention for the processing of nanomaterials. The dispersion of nanomaterials, nanoinks, is used as building material in the printing process. The printing methods can be classified into contact and non-contact printing. Contact printing shows more stable printing quality while potentially damaging some small patterns. The non-contact printing may have less destructive, but the printing consistency and stability remain a challenge. Here, we present a more efficient non-contact printing method by assembling the XYZ plotter with the fountain pen. We utilize the fountain pen to create a capillary induced liquid bridge on the PET film for non-contacting printing. The nanoinks are prepared by dispersion of single-walled carbon nanotubes (SWCNTs) in 1% SDS with various concentrations. The substrate temperature is also varied from 30 deg C to 80 deg C on a hot plate to study the quality of printed patterns with nanoinks. The line width, electrical resistant, and surface roughness are examined for characterization of printed patterns. The electrical resistance drops with increasing the nanotube concentration, while it increases at a higher feed speed. The line width is getting larger at lower temperature for both single and double layer regardless of the feed speed. The surface roughness has not yet demonstrated clear trend under room temperature. However, it shows higher value under the high temperature for single- and double-layer printing pattern.
(102469) Frank Luker
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Partisan Bias, Altruism, and Universalism: Evidence From a Controlled Experiment
Creators: name: Gilmartin, Raymond
Publisher: name: Stanford Digital Repository
Year: 2022
Subjects: subject: Partisanship
subject: intergroup bias
subject: Altruism
subject: Universalism
subject: affective polarization
subject: American politics
subject: Experimental economics
subject: behavioral economics
subject: Stanford University
subject: Mathematical and Computational Science

description: The effect of partisan bias is not confined to the political arena but extends to consumer markets and labor markets. In order to better understand the relationship between affective polarization and economic behavior, I conduct a controlled experiment using a series of dictator games to measure partisan bias in altruism. I find that participants behave more altruistically toward members of their own party and that participants who report higher levels of partisanship display more partisan bias in altruistic behavior. This implies that self-reporting can be a useful tool for gauging differences in partisan bias. However, even participants who report low levels of partisanship display a significant level of partisan bias in altruistic behavior, perhaps because they are unaware of their partisanship or are unwilling to admit it. Therefore, screening for partisan behavior may be a more accurate gauge of partisanship than self-reporting. Additionally, I find that partisan bias in altruism is distinct from and stronger than bias based on shared home state. Finally, in testing a recently-developed questionnaire designed to measure universalism in altruism, I find discrepancies between the results of the universalism questionnaire and the results of the dictator games, raising questions about the validity of the questionnaire.
Young Tableaux, Gelfand Patterns, and Branching Rules for Classical Groups
Creators: name: Proctor, Robert A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: Young tableaux and Gelfand patterns which combinatorially describe characters of irreducible finite dimensional representations of complex classical Lie groups are presented. Some branching rules and/or character recursions are given explicit combinatorial descriptions. These recursions are derived from manipulations of determinantal character formulas.
title: George Smeaton (1814-1889) and his Novum Organum: Biblical Theology and Reformed Orthodoxy
Creators: name: Longwe, Andrew Gideon Howard
Publisher: name: University of Glasgow in partnership with Edinburgh Theological Seminary
Year: 2020
Subjects: subject: George Smeaton, Free Church of Scotland, Reformed Orthodoxy, Biblical Theology, Nineteenth Century.

description: This thesis seeks to retrieve the invaluable and erudite contribution made by Professor George Smeaton (1814-1889) in his much-overlooked magnum opus, The Doctrine of the Atonement, As Taught by Christ Himself (1868). In previous assessments of Smeaton’s theology, it has been claimed that it was a ‘ground-breaking work’ and a ‘novum organum of theology’ because of the new method he applied to the study of the atonement. This thesis wants to ask the following questions: what was Smeaton’s new method? Was it a ‘novum organum of theology’? Was it a ‘ground-breaking’ contribution to the study of the atonement in Scotland? Did his application of this new method to the study of the atonement contradict or cohere with his classical Reformed orthodoxy? The thesis is divided into five chapters. Chapter one presents a biographical sketch of Smeaton’s life; highlighting the various aspects which led him to become a Reformed orthodox Biblical scholar. Chapter two presents an overview of the relevant developments which took place within Smeaton’s ecclesiastical and theological milieu; highlighting the various factors which shaped his interest in the atonement and Biblical studies. It also gives an overview of the leading theological methods applied to the doctrine of the atonement in Scotland prior to 1868. The evidence will enable us to establish whether or not his method was ground-breaking. Chapter three examines Smeaton’s Biblical theological method and how he applied it to his study of Christ’s Doctrine of the Atonement. Chapter four examines his key theological postulates which ultimately shaped and informed his Biblical theological study of the atonement. The evidence will enable us to establish whether or not his application of the method contradicts or coheres with Reformed orthodoxy. The final chapter will summarise the various conclusions which have arisen from our discussion. In short it will argue that in Scotland Smeaton pioneered a ‘novum organum of theology’ by applying the Biblical theological method to the study of the atonement. Although it was both a bold and ironic innovation in his context; his application of this new method cohered with his loyalty to the classical Reformed orthodox tradition.
Locally Adaptive Dynamic Networks
Creators: name: Durante, Daniele
name: Dunson, David B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Applications (stat.AP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Our focus is on realistically modeling and forecasting dynamic networks of face-to-face contacts among individuals. Important aspects of such data that lead to problems with current methods include the tendency of the contacts to move between periods of slow and rapid changes, and the dynamic heterogeneity in the actors' connectivity behaviors. Motivated by this application, we develop a novel method for Locally Adaptive DYnamic (LADY) network inference. The proposed model relies on a dynamic latent space representation in which each actor's position evolves in time via stochastic differential equations. Using a state space representation for these stochastic processes and Pólya-gamma data augmentation, we develop an efficient MCMC algorithm for posterior inference along with tractable procedures for online updating and forecasting of future networks. We evaluate performance in simulation studies, and consider an application to face-to-face contacts among individuals in a primary school.
Mathematical structures behind supersymmetric dualities
Creators: name: Gahramanov, Ilmar
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81T60, 33D60, 33E20, 33D90, 39A13

description: The purpose of these notes is to give a short survey of an interesting connection between partition functions of supersymmetric gauge theories and hypergeometric functions and to present the recent progress in this direction.
description: 10 pages, v2: minor corrections, comments and refs. added
On the Merging Cluster Abell 578 and Its Central Radio Galaxy 4C +67.13
Creators: name: Hagino, K.
name: Stawarz, L.
name: Siemiginowska, A.
name: Cheung, C. C.
name: Koziel-Wierzbowska, D.
name: Szostek, A.
name: Madejski, G.
name: Harris, D. E.
name: Simionescu, A.
name: Takahashi, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Here we analyze radio, optical, and X-ray data for a peculiar cluster Abell 578. This cluster is not fully relaxed and consists of two merging sub-systems. The brightest cluster galaxy, CGPG 0719.8+6704, is a pair of interacting ellipticals with projected separation $\sim$10 kpc, the brighter of which hosts the radio source 4C +67.13. The Fanaroff-Riley type-II radio morphology of 4C +67.13 is unusual for central radio galaxies in local Abell clusters. Our new optical spectroscopy revealed that both nuclei of the CGPG 0719.8+6704 pair are active, albeit at low accretion rates corresponding to the Eddington ratio $\sim10^{-4}$ (for the estimated black hole masses of $\sim 3 \times 10^8\,M_\odot$ and $\sim 10^9 \, M_\odot$). The gathered X-ray ({\it Chandra}) data allowed us to confirm and to quantify robustly the previously noted elongation of the gaseous atmosphere in the dominant sub-cluster, as well as a large spatial offset ($\sim 60$\,kpc projected) between the position of the brightest cluster galaxy and the cluster center inferred from the modeling of the X-ray surface brightness distribution. Detailed analysis of the brightness profiles and temperature revealed also that the cluster gas in the vicinity of 4C\,+67.13 is compressed (by a factor of about $\sim 1.4$) and heated (from $\simeq 2.0$\,keV up to 2.7\,keV), consistent with the presence of a weak shock (Mach number $\sim 1.3$) driven by the expanding jet cocoon. This would then require the jet kinetic power of the order of $\sim 10^{45}$\,erg\,s$^{-1}$, implying either a very high efficiency of the jet production for the current accretion rate, or a highly modulated jet/accretion activity in the system.
description: 12 pages, 11 figures, accepted for publication in ApJ
Minuscule Elements of Weyl Groups, the Numbers Game, andd-Complete Posets
Creators: name: Proctor, Robert A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999

description: Certain posets associated to a restricted version of the numbers game of Mozes are shown to be distributive lattices. The posets of join irreducibles of these distributive lattices are characterized by a collection of local structural properties, which form the definition ofd-complete poset. In representation theoretic language, the top “minuscule portions” of weight diagrams for integrable representations of simply laced Kac–Moody algebras are shown to be distributive lattices. These lattices form a certain family of intervals of weak Bruhat orders. These Bruhat lattices are useful in studying reduced decompositions of λ-minuscule elements of Weyl groups and their associated Schubert varieties. Thed-complete posets have recently been proven to possess both the hook length and the jeu de taquin properties.
The Calabi-Yau Theorem and Kähler currents
Creators: name: Tosatti, Valentino
Publisher: name: arXiv
Year: 2015
Subjects: subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 32Q15, 53C55, 32U05, 32W20, 32U25

description: In this note we give an overview of some applications of the Calabi-Yau theorem to the construction of singular positive (1,1) currents on compact complex manifolds. We show how recent developments allow us to give streamlined proofs of existing results, as well as new ones.
description: 19 pages; submitted to the proceedings of the conference "60 years of Calabi Conjecture"
THE SKELETAL PHENOTYPE OF THE KK/AY MURINE MODEL OF TYPE 2 DIABETES
Creators: name: Chowdhury, Nusaiba Nahola
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Biomedical engineering not elsewhere classified

description: Type-2-diabetes (T2D) is a progressive metabolic disease characterized by insulin resistance and β-cell dysfunction leading to persistent hyperglycemia. It is a multisystem disease that causes deterioration of multiple organ systems and obesity. Of interest, T2D affects the urinary system and is the leading cause of kidney disease. Both T2D and chronic kidney negatively impacts the skeletal system and increases fracture incidence in patients. Therefore, it is important to establish an animal model that captures the complex multiorgan effects that is common in T2D. In this study, we characterized the metabolic phenotype of the KK/Ay mouse model, a polygenic mutation model of T2D. We concluded that KK/Ay mice closely mimic T2D and are hyperglycemic, hyperinsulinemic and insulin resistant. KK/Ay mice have also had worsened kidney function as supported by elevated levels of blood urea nitrogen, phosphorous, creatinine, and calcium in plasma exhibiting the kidney’s inefficiency in clearing waste from the body. Even though we were able to confirm a metabolic phenotype for T2D and diabetic nephropathy, the skeletal effects of the disease were minimal and major differences in bone physiology were driven by sex differences. This study offered valuable insight into preliminary endpoints for the KK/Ay mouse mode that will decide the direction for future use of this model. We plan to use older mice in future studies to allow a longer time for skeletal effects to more prominently manifest.
- Madanpur temple pillar inscription
Creators: name: Unedited
Publisher: name: Zenodo
Year: 2020

description: [caption id="attachment_5779" align="alignnone" width="643"] Madanpur (Lalitpur, UP). Inscription on a maṇḍapa pillar in praise of Śiva with Alexander Cunningham's hand copy (ASIR 10, no. 11, see CONCORDANCE).[/caption]
Modifications to Swisdak (2013)'s rejection sampling algorithm for a Maxwell-Jüttner distribution in particle simulations
Creators: name: Zenitani, Seiji
Publisher: name: arXiv
Year: 2024
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Modifications to Swisdak [Phys. Plasmas 20, 062110 (2013)]'s rejection sampling algorithm for drawing a Maxwell-Jüttner distribution in particle simulations are presented. Handy approximations for $e$-folding points and a linear slope in the envelope function are proposed, to make the algorithm self-contained and more efficient.
description: To appear in Physics of Plasmas
(102464) Philip Eric Richards
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Energy Pooling Upconversion in Organic Molecular Systems
Creators: name: LaCount, M.
name: Weingarten, D.
name: Hu, N.
name: Shaheen, S.
name: van de Lagemaat, J.
name: Rumbles, G.
name: Walba, D.
name: Lusk, M. T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A combination of molecular quantum electrodynamics, perturbation theory, and ab initio calculations was used to create a computational methodology capable of estimating the rate of 3-body singlet upconversion in organic molecular assemblies. The approach was applied to quantify the conditions under which such relaxation rates, known as energy pooling, become meaningful for two test systems: stilbene-fluorescein and hexabenzocoronene-oligothiophene. Both exhibit low intra-molecular conversion but inter-molecular configurations exist in which pooling efficiency is at least 90\% when placed in competition with more conventional relaxation pathways. For stilbene-fluorescein, the results are consistent with data generated in an earlier experimental investigation. Exercising these model systems facilitated the development of a set of design rules for the optimization of energy pooling.
(102468) Trevor Hicks Dean
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Counting permutations by runs
Creators: name: Zhuang, Yan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A15, 05A05, 05E05

description: In his Ph.D. thesis, Ira Gessel proved a reciprocity formula for noncommutative symmetric functions which enables one to count words and permutations with restrictions on the lengths of their increasing runs. We generalize Gessel's theorem to allow for a much wider variety of restrictions on increasing run lengths, and use it to complete the enumeration of permutations with parity restrictions on peaks and valleys, and to give a systematic method for obtaining generating functions for permutation statistics that are expressible in terms of increasing runs. Our methods can also be used to obtain analogous results for alternating runs in permutations.
description: 26 pages
Tailoring the Spectral and Directional Emissivity of Functionalized Laser Processed Surfaces
Creators: name: Butler, Andrew
name: Reicks, Andrew
name: Alexander, Dennis
name: Gogos, George
name: Zuhlke, Craig A.
name: Argyropoulos, Christos
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Development of methods to control the directional and spectral characteristics of thermal radiation from metallic surfaces is a critical factor enabling many important thermal management applications. In this paper, we study the thermal emission properties of functionalized aluminum surfaces produced through femtosecond laser surface processing (FLSP). These types of surfaces have recently been found to exhibit near-unity broadband omnidirectional emissivity. However, their ultrabroadband absorption response includes visible and near-infrared (IR) radiation, in addition to the mid-IR range, which limits their use as daytime passive radiative cooling devices. Here, we present ways to solve this problem by demonstrating a new design that uses a dielectric Bragg visible light reflector to accurately control the thermal emission spectra of the FLSP surface with the goal of achieving high performance daytime radiative cooling operation. In addition, we propose other designs based on dielectric multilayer structures to further tailor and control the spectra and thermal emission angles of the FLSP surfaces leading to narrowband and broadband directional thermal radiation. The presented photonic engineering approach combined with FLSP structures will be beneficial to various emerging applications, such as radiative cooling, thermal sensing, and thermophotovoltaics.
The Milky Way Bulge: Observed properties and a comparison to external galaxies
Creators: name: Gonzalez, Oscar A.
name: Gadotti, Dimitri A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Milky Way bulge offers a unique opportunity to investigate in detail the role that different processes such as dynamical instabilities, hierarchical merging, and dissipational collapse may have played in the history of the Galaxy formation and evolution based on its resolved stellar population properties. Large observation programmes and surveys of the bulge are providing for the first time a look into the global view of the Milky Way bulge that can be compared with the bulges of other galaxies, and be used as a template for detailed comparison with models. The Milky Way has been shown to have a box/peanut (B/P) bulge and recent evidence seems to suggest the presence of an additional spheroidal component. In this review we summarise the global chemical abundances, kinematics and structural properties that allow us to disentangle these multiple components and provide constraints to understand their origin. The investigation of both detailed and global properties of the bulge now provide us with the opportunity to characterise the bulge as observed in models, and to place the mixed component bulge scenario in the general context of external galaxies. When writing this review, we considered the perspectives of researchers working with the Milky Way and researchers working with external galaxies. It is an attempt to approach both communities for a fruitful exchange of ideas.
description: Review article to appear in "Galactic Bulges", Editors: Laurikainen E., Peletier R., Gadotti D., Springer Publishing. 36 pages, 10 figures
SHORT-TERM DECISION-MAKING MODELS FOR ELECTRICITY RETAILERS WITH SELF-PRODUCTION OF RENEWABLE ENERGY IN THE TWO-SETTLEMENT ELECTRICITY MARKET
Creators: name: Hamidivadeghani, Ilahe
Publisher: name: Washington State University
Year: 2022
Subjects: Conditional Value at Risk
Day-Ahead Market
Electricity Retailer
Real-Time Market
Short-Term Decision
Two-Stage Stochastic Optimization
Education

description: This thesis presents short-term decision models for an electricity retailer in the two-settlement electricity market, considering the retailer has self-production of renewable energy. A two-stage stochastic optimization problem with risk management modeled through the Conditional Value at Risk (CVaR) for each model. These models are proposed to help electricity retailers participate more efficiently in pool-based electricity markets with the self-production of renewable energy. The models analyze the uncertainties in the amount of renewable energy available in the Day-Ahead Market (DAM) and Real-Time Market (RTM) and their impact on the retailer's decisions. Case studies have been conducted to verify the effectiveness of the proposed models under different active parameters and risk-aversion levels.
title: Screening Italians - Identity, Memory and Sexuality in Migrant Italian Film and Culture Perspective
Creators: name: Sprio, Margherita
Publisher: name: Goldsmiths, University of London
Year: 2004

description: Film has played a significant role in shaping the British-Italian community's sense of identity in the context of post war Italian immigration into Britain. This thesis explores how (Southern Italian) cultural identity has been mediated by both historical and contemporary factors and the ways in which this identity has been shaped by the process of immigration. Nostalgia and myth have helped to shift notions of the self within the immigrant community; at the same time they have also acted as tools through which the notion of homeland and belonging could be experienced. How can cultural history be understood in relation to memory and how could this duality be negotiated in terms of understanding the construction of (Italian) cultural identity? The importance of both collective and individual memory has been made visible through ethnographic research that has involved a series of interviews with members of the Italian immigrant communities located both within London and the Home Counties of Britain. Drawing on a series of film readings, together with an historical and theoretical overview of the construction of Italianicity, there has also been an examination of the specific impact that popular film melodramas had on what was to become the British-Italian immigrant community. These films (from the 1950s in Italy) enabled the transmission of a particular version of sexual identity that is still prevalent today in American mainstream film. These ideas have been further investigated in relation to converging authenticities of experience and how this convergence has influenced second generation Italians. An analysis of the distorted forms of continuity, in terms of how home and place are perceived, informs the more theoretical aspects of the overall project. By considering the influence of film in relation to cultural difference, this research should contribute to current debates about cultural translation.
Induction functor in noncommutative equivariant cohomology and Dirac cohomology
Creators: name: Kumar, Shrawan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: The aim of this paper is to put some recent results of Huang and Pandz ic (conjectured by Vogan) and Kostant on Dirac cohomology in a broader perspective. This is achieved by introducing an induction functor in the noncommutative equivariant cohomology. In this context, the results of Huang-Pandz ic and Kostant are interpreted as special cases (corresponding to the manifold being a point) of more general results on noncommutative equivariant cohomology introduced by Alekseev and Meinrenken.
An algebro-geometric realization of equivariant cohomology of some Springer fibers
Creators: name: Kumar, Shrawan
name: Procesi, Claudio
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: We give an explicit affine algebraic variety whose coordinate ring is isomorphic (as a W-algebra) with the equivariant cohomology of some Springer fibers.
Magnetocaloric properties of single-crystalline Eu$_5$In$_2$Sb$_6$
Creators: name: Synoradzki, Karol
name: Toliński, Tomasz
name: Ain, Qurat Ul
name: Matczak, Michał
name: Romanova, Tetiana
name: Kaczorowski, Dariusz
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetocaloric effect (MCE) in single-crystalline Eu$_5$In$_2$Sb$_6$ was studied over broad temperature ranges and magnetic field intervals, with the magnetic field oriented parallel and perpendicular to the crystallographic $\textit{c}$-axis in the orthorhombic Ca$_5$Ga$_2$As$_6$-type unit cell of the crystals. The compound is an antiferromagnetic insulator with two subsequent magnetic phase transitions at $T_{N1} \approx$ 14.0 K and $T_{N2} \approx$ 7.1 K. The compound was found to exhibit both normal and inverse MCE. Furthermore, due to substantial magnetic anisotropy, it also exhibits a rotational MCE. For conventional MCE, the maximum value of the isothermal entropy change $ΔS_m$ is -4.7(1) J kg$^{-1}$ K$^{-1}$ at 15(1) K for a magnetic field change of 5 T, independent of the field direction. The relative cooling power (RCP) is also almost identical for both directions, and equals 81(1) J kg$^{-1}$ for a magnetic field change of 5 T. The most significant rotational MCE was observed at about 11 K, with a maximum $ΔS_R$ value of 2.4(1) J kg$^{-1}$ K$^{-1}$ and RCP = 17.5(6) J kg$^{-1}$ for a magnetic field change of 4 T.
Varianten des 4-Punkt-Schemas
Creators: name: Schmidt, Sebastian
Publisher: name: Karlsruhe
Year: 2015

description: Unterteilungsalgorithmen für Kurven werden im Computer Aided Design, der Animation von Objekten und der Computergrafik immer beliebter. Sie sind leicht zu implementieren und meistens effizienter als traditionelle Methoden zur Generierung von Kurven wie zum Beispiel die Spline-Interpolation. In dieser Arbeit wird ein interpolierender und konvexitätserhaltender geometrischer Unterteilungsalgorithmus auf Glattheit untersucht. Der Algorithmus arbeitet auf einem streng konvexen Polygon mit frei wählbaren Tangenten. Zunächst wird anhand eines Gegenbeispiels gezeigt, dass der Algorithmus im allgemeinen keine glatte Kurve erzeugt. Darauf aufbauend wird eine einschränkende Bedingung an die Eingabe festgelegt, die das Gegenbeispiel ausschließt. Mit dieser Bedingung und zwei weiteren Forderungen wird gezeigt, dass der Algorithmus C1-stetige Kurven erzeugt. Es wird gezeigt, dass neue Punkte in einem bestimmten Bereich eingefügt werden und ein Ergebnis von Paluszny et al. angewandt. Die beiden zusätzlichen Forderungen werden experimentell untersucht. Damit wird der Grundstein für die weitere Untersuchung der Forderungen gelegt. Mit dem Ergebnis von Paluszny et al. wird anschließend ein Schema konstruiert, welches ebenfalls interpolierend und konvexitätserhaltend ist, und das per Konstruktion C1-stetige Kurven erzeugt.
Coproduced AMR/antibiotic use awareness posters for rural Uganda
Creators: name: Neema, Stella
name: Fredricks, Kathryn
name: Kesby, Mike
Publisher: name: Zenodo
Year: 2023
Subjects: AMR
Antimicrobial resistance
ABR
antibiotic resistance
PAR
Participatory Action Research
Uganda
Public health
Coproduced
Poster

description: Unpublished PowerPoint document (and pdf copy) - presents a series of public health awareness posters related antibiotic resistance and antibiotic drug use. They emerge from a series of international academic research projects that explore the drivers of antimicrobial resistance in Urinary Tract Infections in East Africa. The posters were co-produced with Ugandan participants in Oct-Nov 2022 to improve their relevance for their intended audience. The presentation also gives an outline of the methodological process involved.
Spacetime and observer space symmetries in the language of Cartan geometry
Creators: name: Hohmann, Manuel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce a definition of symmetry generating vector fields on manifolds which are equipped with a first-order reductive Cartan geometry. We apply this definition to a number of physically motivated examples and show that our newly introduced notion of symmetry agrees with the usual notions of symmetry of affine, Riemann-Cartan, Riemannian and Weizenböck geometries, which are conventionally used as spacetime models. Further, we discuss the case of Cartan geometries which can be used to model observer space instead of spacetime. We show which vector fields on an observer space can be interpreted as symmetry generators of an underlying spacetime manifold, and may hence be called "spatio-temporal". We finally apply this construction to Finsler spacetimes and show that symmetry generating vector fields on a Finsler spacetime are indeed in a one-to-one correspondence with spatio-temporal vector fields on its observer space.
description: 45 pages, no figures; version accepted by J. Math. Phys
Excluding Primordial Black Holes as Dark Matter Based on Solar System Ephemeris
Creators: name: Loeb, Abraham
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Current cosmological constraints allow primordial black holes (PBHs) to constitute dark matter in the mass range of $10^{18}$-$10^{22}$g. We show that a major portion of this logarithmic window can be ruled-out based on the Solar System ephemeris, given that the external mass enclosed within 50 au from the Sun did not change by more than $\sim 5\times 10^{-14}$ solar masses per year in recent decades.
description: Accepted for publication in Research Notes of the American Astronomical Society (August 2024), 4 pages
title: Ползучесть и длительная прочность деталей паровых и газовых турбин. Основные понятия и метод расчета в ANSYS WB
title: учебное пособие
titleType: Subtitle
Creators: name: Суханов, Александр
name: Тарабащук, Дмитрий
name: Королева, Наталья
Publisher: name: Санкт-Петербургский политехнический университет Петра Великого
Year: 2020
Subjects: Металлы
Паровые турбины
Газовые турбины
Турбинные диски
Вычислительные машины электронные персональные

description: В учебном пособии рассматриваются вопросы оценки ресурса элементов конструкции паровых и газовых турбин с учетом ползучести металла. Ползучесть и длительная прочность металлов, используемых в конструкции турбин, является одним из основных факторов, определяющим работоспособность ее элементов при ресурсе более 200 тыс. часов. В учебном пособии на примерах пояснена методика расчета ресурса диска рабочего колеса, а также ресурса рабочей лопатки турбины с помощью современном программы ANSYS WB. В учебном пособии показана необходимость сочетания расчетных и экспериментальных методов изучения прочности элементов конструкции турбин.
(102451) Joan Anita Vigars
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Equivalence of several generalized percolation models on networks
Creators: name: Miller, Joel C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In recent years, many variants of percolation have been used to study network structure and the behavior of processes spreading on networks. These include bond percolation, site percolation, $k$-core percolation, bootstrap percolation, the generalized epidemic process, and the Watts Threshold Model (WTM). We show that --- except for bond percolation --- each of these processes arises as a special case of the WTM and bond percolation arises from a small modification. In fact "heterogeneous $k$-core percolation", a corresponding "heterogeneous bootstrap percolation" model, and the generalized epidemic process are completely equivalent to one another and the WTM. We further show that a natural generalization of the WTM in which individuals "transmit" or "send a message" to their neighbors with some probability less than $1$ can be reformulated in terms of the WTM, and so this apparent generalization is in fact not more general. Finally, we show that in bond percolation, finding the set of nodes in the component containing a given node is equivalent to finding the set of nodes activated if that node is initially activated and the node thresholds are chosen from the appropriate distribution. A consequence of these results is that mathematical techniques developed for the WTM apply to these other models as well, and techniques that were developed for some particular case may in fact apply much more generally.
description: To appear in PRE
CALIBRATION AND VALIDATION OF A HIGH FIDELITY DISCRETE ELEMENT METHOD (DEM) BASED SOIL MODEL USING PHYSICAL TERRAMECHANICAL EXPERIMENTS
Creators: name: Ghike, Omkar Ravindra
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Solid mechanics

description: A procedure for calibrating a discrete element (DE) computational soil model for various moisture contents using a conventional Asperity-Spring friction modeling technique is presented in this thesis. The procedure is based on the outcomes of two physical soil experiments: (1) Compression and (2) unconfined shear strength at various levels of normal stress and normal pre-stress. The Compression test is used to calibrate the DE soil plastic strain and elastic strain as a function of Compressive stress. To calibrate the DE inter-particle friction coefficient and adhesion stress as a function of soil plastic strain, the unconfined shear test is used. This thesis describes the experimental test devices and test procedures used to perform the physical terramechanical experiments. The calibration procedure for the DE soil model is demonstrated in this thesis using two types of soil: sand-silt (2NS Sand) and silt-clay(Fine Grain Soil) over 5 different moisture contents: 0%, 4%, 8%, 12%, and 16%. The DE based models response are then validated by comparing them to experimental pressure-sinkage results for circular disks and cones for those two types of soil over 5 different moisture contents. The Mean Absolute Percentage Error (MAPE) during the compression calibration was 26.9% whereas during the unconfined shear calibration, the MAPE was calculated to be 11.38%. Hence, the overall MAPE was calculated to be 19.34% for the entire calibration phase.
(102463) Edwin Richards
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Multilevel Sequential Monte Carlo Samplers
Creators: name: Beskos, Alexandros
name: Jasra, Ajay
name: Law, Kody
name: Tempone, Raul
name: Zhou, Yan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: In this article we consider the approximation of expectations w.r.t. probability distributions associated to the solution of partial differential equations (PDEs); this scenario appears routinely in Bayesian inverse problems. In practice, one often has to solve the associated PDE numerically, using, for instance finite element methods and leading to a discretisation bias, with the step-size level $h_L$. In addition, the expectation cannot be computed analytically and one often resorts to Monte Carlo methods. In the context of this problem, it is known that the introduction of the multilevel Monte Carlo (MLMC) method can reduce the amount of computational effort to estimate expectations, for a given level of error. This is achieved via a telescoping identity associated to a Monte Carlo approximation of a sequence of probability distributions with discretisation levels $\infty>h_0>h_1\cdots>h_L$. In many practical problems of interest, one cannot achieve an i.i.d. sampling of the associated sequence of probability distributions. A sequential Monte Carlo (SMC) version of the MLMC method is introduced to deal with this problem. It is shown that under appropriate assumptions, the attractive property of a reduction of the amount of computational effort to estimate expectations, for a given level of error, can be maintained within the SMC context.
Using nurses’ natural language entries to build a concept-oriented terminology for patients’ chief complaints in the emergency department
Creators: name: Haas, Stephanie
name: Travers, Debbie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: Information about the chief complaint (CC), also known as the patient's reason for seeking emergency care, is critical for patient prioritization for treatment and determination of patient flow through the emergency department (ED). Triage nurses document the CC at the start of the ED visit, and the data are increasingly available in electronic form. Despite the clinical and operational significance of the CC to the ED, there is no standard CC terminology. We propose the construction of concept-oriented nursing terminologies from the actual language used by experts. We use text analysis to extract CC concepts from triage nurses' natural language entries. Our methodology for building the nursing terminology utilizes natural language processing techniques and the Unified Medical Language System.