cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fractures, bone mass and geometry in black and white South African children: the birth to twenty cohort
Creators: name: Kebashni Thandrayen
name: Schoenbuchner, Simon
name: Ward, Kate
name: Micklesfield, Lisa
name: Norris, Shane
name: Prentice, Ann
name: Pettifor, John
Publisher: name: F1000Research
Year: 2015

description: The aim of the study was to determine the association between fracture risk and measures of bone size and strength, as determined by DXA and pQCT, at age 15 years in the different ethnic groups.

Conclusions:
• Larger bones were associated with greater fracture risk in white males as indicated by both DXA and pQCT results. Bone strength was also greater in white males with fractures. These findings are counter-intuitive, but probably relate to the greater physical activity reported by those who fractured compared to their non-fracturing peers (Thandrayen et al. 2011, JBMR 26(12):2834-2842).
• In black males, there were no DXA differences in bone size and mass. Site differences were found using pQCT where black boys with a fracture history had less dense bones at the tibial metaphysis, and larger bones at the radial metaphysis (both 4% sites).
• Bone size and geometry as measured by pQCT and DXA are not able to explain the differences in fracture prevalence in black and white females.
Factors such as differences in physical activity, as previously reported in this cohort, and other environmental variables may account for these disparate fracture rates
Homogeneous cosmologies in generalized modified gravity
Creators: name: Cognola, Guido
name: Zerbini, Sergio
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Dynamical system methods are used in the study of the stability of spatially flat homogeneous cosmologies within a large class of generalized modified gravity models in the presence of a relativistic matter-radiation fluid. The present approach can be considered as the generalization of previous works in which only $F(R)$ cases were considered. Models described by an arbitrary function of all possible geometric invariants are investigated and general equations giving all critical points are derived.
description: 13 pages, no figures
title: An Examination of Traumatic Brain Injury and Genes for Neurotrophins and Apolipoprotein E in Predicting Cognitive Function in Older Adults: The Cache County Study
Creators: name: Drewel, Mikaela A.
Publisher: name: Utah State University
Year: 2024

description: Recovery from a traumatic brain injury (TBI) is influenced by a wide array of factors including age at incidence, number, and severity as well as genetic factors, some of which exhibit sex-dependent effects. This study examines how TBI history influences rate of cognitive decline in older adults, exploring the characteristics of TBI (e.g., number, severity, and timing) as predictors and interactions of TBI history with genetic variants suspected to play a role in brain health and late-life cognitive functioning. These genes include the Apolipoprotein E (APOE) as well as brain derived neurotrophic factor (BDNF) and its receptors. This study analyzed extant data from the Cache County Study on Memory in Aging (CCSMA), a longitudinal, population-based study of over 5,000 adults, aged 65 years and older.
A history of two or more TBIs was associated with lower scores on verbal list learning. Unexpectantly, females with a history of severe TBI scored higher on a test of verbal recognition recall compared to males with no history of TBI. Furthermore, females with at least one APOE ε4 allele and two or more TBIs scored lower on global cognitive and verbal learning tasks compared to males lacking a history of TBI and the APOE ε4 allele. BDNF receptor TrkB (rs2289656) moderated the association of TBI severity on recognition tasks such that individuals with a history of severe TBI and at least one minor allele for receptor TrkB (rs2289656) scored lower than individuals lacking a history of TBI and the minor allele. Overall, this study suggests that the course of late-life cognitive decline is associated with history of TBI and the associations examining severity or number of TBI may depend on sex and genotype. Although gene modification is not a viable intervention, one may consider how to enhance BDNF activity to reduce the deleterious effects of TBI on late-life cognition. For example, physical activity and diet are lifestyle factors that promote BDNF activity and may offer a target for intervention. Future research is needed to examine this and other possible interventions to mitigate the effects of TBI on late-life cognitive decline.
Collisionally Regenerated Dark Matter Structures in Galactic Nuclei
Creators: name: Merritt, David
name: Harfst, Stefan
name: Bertone, Gianfranco
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the presence of a rho~1/r^{3/2} dark matter overdensity can be robustly predicted at the center of any galaxy old enough to have grown a power-law density cusp in the stars via the Bahcall-Wolf mechanism. Using both Fokker-Planck and direct N-body integrations, we demonstrate collisional generation of these dark matter "crests" (Collisionally REgenerated STtructures) even in the extreme case that the density of both stars and dark matter were previously lowered by slingshot ejection from a binary supermassive black hole. The time scale for collisional growth of the crest is approximately the two-body relaxation time as defined by the stars, which is < 10 Gyr at the centers of stellar spheroids with luminosities comparable to that of the Milky Way bulge or less. The presence of crests can robustly be predicted in such galaxies, unlike the steeper enhancements, called "spikes," produced by the adiabatic growth of black holes. We discuss special cases where the prospects for detecting dark matter annihilations from the centers of galaxy haloes are significantly affected by the formation of crests.
description: 11 pages, uses revtex4
COMPARISONS IN TOPOGRAPHY AND MORPHOMETRY OF UTERINE TUBES DURING THE FETAL PERIOD
Creators: name: Bakoyeva, Feruza
Publisher: name: Zenodo
Year: 2024

description: The importance of studies dealing with spatial-temporal dynamics of  transformations of  the  human  organ  systems during  antenatal  period of  development  is difficult  to  be overestimated for modern morphological science. A number of scientific works published in modern scientific periodical editions  deal  with  investigation  of these processes.  The priority and importance of investigations of different organs and/or systems is not possible to  determine.
title: Experimental and CFD analyses of cuttings transport in horizontal annuli and a study on isotropic rocks for strength correlations
Creators: name: Rasul, Golam
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: The research activities performed in this study focused on the cuttings transport process in horizontal annuli that represents the horizontal drilling phenomenon. Both experimental and numerical approaches have been adopted to investigate the efficient hole cleaning process. Numerous flow conditions were examined in laboratory conditions and the subsequent visualization was performed with the help of a high-speed camera. The effects of drilling parameters such as drill pipe’s rotational speed (RPM), eccentricity and flow rate were scrutinized throughout the experimental and computational fluid dynamics (CFD) analyses. The common findings indicate enhanced hole cleaning ability at increased RPM and eccentricity. On the other hand, an increasing trend for pressure drop across the annulus section is identified with the enhanced drill pipe’s rotation (RPM), eccentricity and flow rate. The last part of this study examined tensile and shear fracture examination to find out different strengths of isotropic rock samples and establish strength correlations among them. This study will contribute to an ongoing investigation to predict cuttings size distribution from rock formation properties and drilling parameters. Unconfined compressive strength and indirect tensile strength (UCS-ITS) and unconfined compressive strength and point load strength index (UCS-PLSI) correlations were developed. Additionally, the ultrasonic pulse wave measurement was performed to establish the unconfined compressive strength and primary wave velocity (UCS-VP) relationships for sandstone and medium strength rock like material (RLM). Ultimately, all fitted relationships were analyzed through a comparative study with published correlations. This study on isotropic rocks is a part of an investigation to predict cuttings size distribution and future research will take the lead from this current thesis.
Measurement of masses of the $Ξ_c(2645)$ and $Ξ_c(2815)$ baryons and observation of $Ξ_c(2980)\toΞ_c(2645)π$ %and observation of the $Ξ_c(2980)$ and observation of $Ξ_c(2980)\to Ξ_c(2645)π$
Creators: name: Belle Collaboration
name: Lesiak, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report a precise measurement of the masses of the $Ξ_c(2645)$ and $Ξ_c(2815)$ baryons using a data sample of 414 fb$^{-1}$ collected by the Belle collaboration at the KEKB $e^+ e^-$ collider. The states $Ξ_c(2645)^{0,+}$ are observed in the $Ξ_c^{+,0}π^{-,+}$ decay modes, while the $Ξ_c(2815)^{0,+}$ are reconstructed in the $Ξ_c(2645)^{+,0}π^{-,+}$ decay modes. The following mass splittings are determined: $m_{Ξ_c(2645)^+} - m_{Ξ_c(2645)^0} = (-0.1 \pm 0.3 ({\rm stat}) \pm 0.6 {(\rm syst})) {\rm MeV}/{\rm c}^2$ and $m_{Ξ_c(2815)^+} - m_{Ξ_c(2815)^0} = (-3.4 \pm 1.9 ({\rm stat}) \pm 0.9 {(\rm syst})) {\rm MeV}/{\rm c}^2$ with a much better precision than the current world averages. We also observe a new decay mode, $Ξ_c(2980)^{0,+} \to Ξ_c(2645)^{+,0}π^{-,+}$.
description: 13 pages, 4 figures, submitted to Phys. Lett. B
A 24-h forecast of ozone peaks and exceedance levels using neural classifiers and weather predictions
Creators: name: Dutot, A.
name: Rynkiewicz, Joseph
name: Steiner, F.
name: Rude, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: A neural network combined to a neural classifier is used in a real time forecasting of hourly maximum ozone in the centre of France, in an urban atmosphere. This neural model is based on the MultiLayer Perceptron (MLP) structure. The inputs of the statistical network are model output statistics of the weather predictions from the French National Weather Service. With this neural classifier, the Success Index of forecasting is 78% whereas it is from 65% to 72% with the classical MLPs. During the validation phase, in the Summer of 2003, six ozone peaks above the threshold were detected. They actually were seven.
The non-fundamental: explanation
Creators: name: Wilhelm, Isaac
Publisher: name: No Publisher Supplied
Year: 2021

description: What is non-fundamental reality like? What sorts of connections stretch from the fundamental up through the non-fundamental? In this dissertation, I take some preliminary steps towards developing a complete, unified theory of non-fundamentalia. I focus, in particular, on theories of explanation for non-fundamental phenomena. In the first chapter, I argue that there is a single `explanatory determination' relation which (i) backs all cases of explanation among fundamentalia and non-fundamentalia alike, and (ii) explains why all other explanation-backing relations are explanatory. In the second chapter, I argue that typicality facts---for instance, the non-fundamental fact that gases typically evolve to equilibrium---can be explanatory. In the third chapter, I propose an account of what it takes for one mathematical proof to be at least as explanatory as another.
Comet 29P/Schwassmann-Wachmann 1 dust environment from photometric observation at the SOAR Telescope
Creators: name: Picazzio, E.
name: Luk'yanyk, I. V.
name: Ivanova, O. V.
name: Zubko, E.
name: Cavichia, O.
name: Videen, G.
name: Andrievsky, S. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report photometric observations of comet 29P/Schwassmann-Wachmann 1 made on August 12, 2016 with the broadband B, V, R and I filters and the SOAR 4.1-meter telescope (Chile). We find the comet active at that time. Enhanced images obtained in all filters reveal three radial features in the 29P/ Schwassmann-Wachmann 1 coma, regardless of the image-processing algorithm. Using a high-resolution spectrum of comet 29P/Schwassmann-Wachmann 1 reported by Ivanova et al. (2018) on the same date, we estimate the relative contribution of the gaseous emission and the continuum to the total response measured with our broadband B and V filters. The gaseous-emission contribution appears to be very small 2.5%. We compute the dust production Af\r{ho} in 29P/ Schwassmann-Wachmann 1 for the four filters and find its growth with the wavelength, from 3,393 cm in the B filter to 8,561 cm in the I filter. We model the color slope of dust in Comet 29P/Schwassmann-Wachmann 1 using agglomerated debris particles. Simultaneous analysis of the color slope in the B-R and R-I pairs suggests a single dominant chemical species of 29P/Schwassmann-Wachmann 1 dust particles consisting of Fe-Mg silicates and obeying a power-law size distribution with index n=2.55. This conclusion is consistent with the previous thermal-emission study of 29P/Schwassmann-Wachmann 1.
description: 10 pages, 7 figures
title: Utilizing Recombinant Hagfish Intermediate Filament Proteins to Create a Three-Dimensional Biomimetic Model of the Myocardium
Creators: name: Rickabaugh, Emilee M.
Publisher: name: Utah State University
Year: 2024

description: While cardiovascular diseases are some of the most common ailments throughout the world, there is much that is still poorly understood about how these diseases function on a cellular level. One common way of studying these diseases is by using animal models or clinical trials. However, this testing is often expensive and ethically complex. A cheaper, faster, and more ethically straightforward way to study these diseases on a cellular level prior to animal or human studies is by using an imitation model of the tissue, called an in vitro model. Many researchers have made in vitro models of the heart muscle; however, these models often fail to successfully represent one or more important aspects of heart muscle in the body. Often, these limitations are a result of the material used, as very few materials can successfully capture the properties of heart muscle.
This project uses a unique material, called recombinant hagfish intermediate proteins, to create an improved in vitro model of the heart muscle. This protein is derived from the slime of a hagfish, a deep-sea creature, which shows distinctive properties that make this material uniquely suited for in vitro modeling projects. This protein is used to form threads that can mimic the properties of the heart muscle, which are then used to support the growth of muscle cells. The protein threads and cells together create an imitation tissue that can be used to gather information on how the heart muscle works, which will help researchers progress toward developing successful treatments for many cardiovascular diseases.
title: Optimal multilateral well placement
Creators: name: Farmer, CL
name: Fowkes, JM
name: Gould, N I M
Publisher: name: Science and Technology Facilities Council
Year: 2010

description: One is often faced with the problem of finding the optimal location and trajectory for an oil well. Increasingly this includes the additional complication of optimising the design of a multilateral well. We present a new approach based on the theory of expensive function optimisation. The key idea is to replace the underlying expensive function (i.e. the simulator response) by a cheap approximation (i.e. an emulator). This enables one to apply existing optimisation techniques to the emulator. Our approach uses a radial basis function interpolant to the simulator response as the emulator. Note that the case of a Gaussian radial basis function is equivalent to the geostatistical method of Kriging and radial basis functions can be interpreted as a single-layer neural network. We use a stochastic model of the simulator response to adaptively refine the emulator and optimise it using a branch and bound global optimisation algorithm. To illustrate our approach we apply it numerically to finding the optimal location and trajectory of a single multilateral well in a reservoir simulation model using the industry standard ECLIPSE simulator. We compare our results to existing approaches and show that our technique is comparable, if not superior, in performance to these approaches.
Superconductivity of bulk MgB2 + nano(n)-SiC composite system: A high field magnetization study
Creators: name: Vajpayee, Arpita
name: Awana, V. P. S.
name: Kishan, H.
name: Bhalla, G. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the effect of nano(n)-SiC addition on the crystal structure, critical temperature (Tc), critical current density (Jc) and flux pinning in MgB2 superconductor. X-ray diffraction patterns show that all the samples have MgB2 as the main phase with very small amount of MgO, further with n-SiC addition the presence of Mg2Si is also noted and confirmed by SEM & EDS. The Tc value for the pure MgB2 is 18.9K under 8 Tesla applied field, while is 20.8K for the 10-wt % n-SiC doped sample under the same field. This points towards the increment in upper-critical field value with n-SiC addition. The irreversibility field (Hirr) for the 5% n-SiC added sample reached 11.3, 10 and 5.8 Tesla, compared to 7.5, 6.5, and 4.2 Tesla for the pure MgB2 at 5, 10 and 20K respectively. The critical current density (Jc) for the 5-wt % n-SiC added sample is increased by a factor of 35 at 10K and 6.5 Tesla field and by a factor 20 at 20K and 4.2 Tesla field. These results are understood on the basis of superconducting condensate (sigma band) disorder and ensuing intrinsic pining due to B site C substitution clubbed with further external pinning due to available n-SiC/Mg2Si pins in the composite system.
description: 19 pages of Text + Figs. comments/suggestions are welcome (awana@mail.nplindia.ernet.in)
Symmetric Monoidal Categories with Attributes
Creators: name: Breiner, Spencer
name: Nolan, John S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Category Theory (math.CT)
subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: When designing plans in engineering, it is often necessary to consider attributes associated to objects, e.g. the location of a robot. Our aim in this paper is to incorporate attributes into existing categorical formalisms for planning, namely those based on symmetric monoidal categories and string diagrams. To accomplish this, we define a notion of a "symmetric monoidal category with attributes." This is a symmetric monoidal category in which objects are equipped with retrievable information and where the interactions between objects and information are governed by an "attribute structure." We discuss examples and semantics of such categories in the context of robotics to illustrate our definition.
description: In Proceedings ACT 2020, arXiv:2101.07888
title: Resource efficient computer vision - and deep learning acceleration on a system-on-chip
Creators: name: Bayr, Rainer Johann
Publisher: name: TU Wien
Year: 2025
Subjects: subject: Deep neural network
subject: embedded system
subject: Deep neural network
subject: embedded system

description: Arbeit an der Bibliothek noch nicht eingelangt - Daten nicht geprueft - gesperrte Arbeit (bis 2027-03-10+01:00)
description: Abweichender Titel nach Übersetzung der Verfasserin/des Verfassers
Abkürzungsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Würzburger Jahrbücher für die Altertumswissenschaft
Year: 2024

description: Würzburger Jahrbücher für die Altertumswissenschaft, [N.F.] Bd. 42 (2018): Würzburger Jahrbücher für die Altertumswissenschaft
‚Eminent neugieriges Wagnis‘
Creators: name: Nebrig, Alexander
Publisher: name: Humboldt-Universität zu Berlin
Year: 2016
Subjects: subject: 830 Literaturen germanischer Sprachen; Deutsche Literatur
subject: 800 Literatur und Rhetorik

description: After presenting academic studies on contemporary literature between 1910 and 1930 in general and in particular on Rilke, I discuss the author’s perception of the criticism on his own poetry in order to explore the implications for The Sonnets to Orpheus (1923). Letters to R. H. Heygrodt demonstrate that Rilke harboured anxiety in relation to biographical and hermeneutical forms of criticism. Though he acknowledges that he is considered to be a “Plastiker” since the Neue Gedichte (1907/08), he attempts to overcome this critical framework of “plasticity” in the Sonnets to Orpheus.
Verwandtschaftsbezeichnungen als Mittel der Leserlenkung und der politischen Analyse in den Annalen des Tacitus
Creators: name: Suerbaum, Werner
Publisher: name: Würzburger Jahrbücher für die Altertumswissenschaft
Year: 2024

description: Würzburger Jahrbücher für die Altertumswissenschaft, [N.F.] Bd. 42 (2018): Würzburger Jahrbücher für die Altertumswissenschaft
Transcription of a story about what happened when a dog spoke
Creators: name: Parker, Verdena
name: Begay, Kayla
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-150711-04: Transcription of a story about what happened when a dog spoke (file VP-060909-06), from 1:00 to the end of the story at 3:30. The microphone was turned off for the first 2:00 of the session and no sound was recorded.
Dynamical behavior of generic quintessence potentials: constraints on key dark energy observables
Creators: name: Huterer, Dragan
name: Peiris, Hiranya V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform a comprehensive study of a class of dark energy models - scalar field models where the effective potential can be described by a polynomial series - exploring their dynamical behavior using the method of flow equations that has previously been applied to inflationary models. Using supernova, baryon oscillation, CMB and Hubble constant data, and an implicit theoretical prior imposed by the scalar field dynamics, we find that the LCDM model provides an excellent fit to the data. Constraints on the generic scalar field potential parameters are presented, along with the reconstructed w(z) histories consistent with the data and the theoretical prior. We propose and pursue computationally feasible algorithms to obtain estimates of the principal components of the equation of state, as well as parameters w_0 and w_a. Further, we use the Monte Carlo Markov Chain machinery to simulate future data based on the Joint Dark Energy Mission, Planck and baryon acoustic oscillation surveys and find that the inverse area figure of merit improves nearly by an order of magnitude. Therefore, most scalar field models that are currently consistent with data can be potentially ruled out by future experiments. We also comment on the classification of dark energy models into "thawing'" and "freezing" in light of the more diverse evolution histories allowed by this general class of potentials.
description: 22 pages and 12 figures, minor clarifications and a new Figure (#9) added in v3, matches the published PRD version. Chains and high-res figures are available at http://kicp.uchicago.edu/~dhuterer/DE_FLOWROLL/de_flowroll.html
BCATTS: Biostatistical Collaborations and Time Tracking System
Creators: name: Aaby, David
name: Welty, Leah
name: Gray, Elizabeth
name: Palac, Hannah
Publisher: name: Prism. Galter Health Sciences Library. Northwestern University
Year: 2025
Subjects: subject: REDCap
subject: Project management
subject: Surveys and Questionnaires

description: BCATTS: Biostatistical Collaborations and Time Tracking System

BCATTS is a project management and time tracking system developed by the Biostatistics Collaboration Center at Feinberg School of Medicine, Northwestern University. The accompanying Excel file contains a REDCap data dictionary template that can be uploaded into a new REDCap project to create your own system.

BCATTS was originally developed for the BCC by Hannah Palac in consultation with Jody Ciolino and Leah Welty, and has been revised by Elizabeth Gray and David Aaby.

The data dictionary is divided into several forms. Some forms are survey-enabled, designed for external users to input information about the project. Other forms are for internal users of the group, containing information about project assignment and management.

1.      Appointment Request: This is a survey-enabled form, where an external user inputs information for a new project request.

2.      Project Assignment: This form assigns an internal member of the group to a particular project.

3.      Project Followup: This form is used internally to gather more information about the type of project request.

4.      Billing/Grant Proposal Followup: This is a survey-enabled form, requesting additional information about billing from a requestor.

5.      Hours: This is a repeatable instrument, used internally to log hours worked on each project.

6.      Project Closeout. This is used internally to denote the end of a project.
Molliter iuvenem … viriliter puerum. Der Doryphoros und der Diadumenos des Polyklet bei Plinius und ihre Deutung
Creators: name: Steinhart, Matthias
Publisher: name: Würzburger Jahrbücher für die Altertumswissenschaft
Year: 2024

description: Würzburger Jahrbücher für die Altertumswissenschaft, [N.F.] Bd. 42 (2018): Würzburger Jahrbücher für die Altertumswissenschaft
Hero und Leander neu erzählt. Zur Rezeption des Mythos in Mittelalter und Früher Neuzeit
Creators: name: Klein, Dorothea
Publisher: name: Würzburger Jahrbücher für die Altertumswissenschaft
Year: 2024

description: Würzburger Jahrbücher für die Altertumswissenschaft, [N.F.] Bd. 42 (2018): Würzburger Jahrbücher für die Altertumswissenschaft
Elicitation of verbs
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio files VP-150711-03a/c: Elicitation of verbs, focusing on themes from the Element List in Sapir and Golla (2001) that are not in the Hupa Language Dictionary.
A diagrammatic approach to symmetric lenses
Creators: name: Clarke, Bryce
Publisher: name: arXiv
Year: 2021
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: Lenses are a mathematical structure for maintaining consistency between a pair of systems. In their ongoing research program, Johnson and Rosebrugh have sought to unify the treatment of symmetric lenses with spans of asymmetric lenses. This paper presents a diagrammatic approach to symmetric lenses between categories, through representing the propagation operations with Mealy morphisms. The central result of this paper is to demonstrate that the bicategory of symmetric lenses is locally adjoint to the bicategory of spans of asymmetric lenses, through constructing an explicit adjoint triple between the hom-categories.
description: In Proceedings ACT 2020, arXiv:2101.07888
Exotic quantum phase transitions in a Bose-Einstein condensate coupled to an optical cavity
Creators: name: Chen, Gang
name: Wang, Xiaoguang
name: Liang, J. -Q.
name: Wang, Z. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: A new extended Dicke model, which includes atom-atom interactions and a driving classical laser field, is established for a Bose-Einstein condensate inside an ultrahigh-finesse optical cavity. A feasible experimental setup with a strong atom-field coupling is proposed, where most parameters are easily controllable and thus the predicted second-order superradiant-normal phase transition may be detected by measuring the ground-state atomic population. More intriguingly, a novel second-order phase transition from the superradiant phase to the \textquotedblleft Mott" phase is also revealed. In addition, a rich and exotic phase diagram is presented.
description: 4 pages; figures 1 and 3 are modified; topos are corrected
Zu Gestaltung und Funktion der Fischereitechniken bei Claudius Aelianus
Creators: name: Humar, Marcel
Publisher: name: Würzburger Jahrbücher für die Altertumswissenschaft
Year: 2024

description: Würzburger Jahrbücher für die Altertumswissenschaft, [N.F.] Bd. 42 (2018): Würzburger Jahrbücher für die Altertumswissenschaft
Induced Nested Galactic Bars Inside Assembling Dark Matter Halos
Creators: name: Heller, Clayton
name: Shlosman, Isaac
name: Athanassoula, Lia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the formation and evolution of nested bar systems in disk galaxies in a cosmological setting by following the development of an isolated dark matter (DM) and baryon density perturbation. The disks form within the assembling triaxial DM halos and the feedback from the stellar evolution is accounted for in terms of supernovae and OB stellar winds. Focusing on a representative model, we show the formation of an oval disk and of a first generation of nested bars with characteristic sub-kpc and a few kpc sizes. The system evolves through successive dynamical couplings and decouplings, forcing the gas inwards and settles in a state of resonant coupling. The inflow rate can support a broad range of activity within the central kpc, from quasar- to Seyfert-types, supplemented by a vigorous star formation as a by-product. The initial bar formation is triggered in response to the tidal torques from the triaxial DM halo, which acts as a finite perturbation. This first generation of bars does not survive for more than 4--5 Gyr: by that time the secondary bar has totally dissolved, while the primary one has very substantially weakened, reduced to a fat oval. This evolution is largely due to chaos introduced by the interaction of the multiple non-axisymmetric components.
description: 4 pages, 4 figures, 1 mpeg animation. To be published by the Astrophysical Journal Letters. The animation can be found at http://www.pa.uky.edu/~shlosman/research/galdyn/movies.html Replaced with an updated version (small text corrections)
title: Thermal Management of Roadway-Embedded Power Electronics for Electric Vehicle Dynamic Wireless Charging Systems
Creators: name: Sabin, Conner R.
Publisher: name: Utah State University
Year: 2024

description: Electric vehicles (EVs) are gaining popularity worldwide. However, concerns raised by the public about purchasing EVs include the limited availability of charging infrastructure, high costs, and the inconvenience of current charging methods. Dynamic wireless charging systems enable electric vehicles to charge while driving, thereby extending the range of EVs and reducing the necessity for large, expensive batteries. Moreover, these systems can initiate charging automatically without user interaction, enhancing charging convenience.
The ground assembly of existing dynamic wireless charging systems consists of an electromagnetic assembly, power electronics for the transmitter pad, and power electronics for grid connection. Installation of these systems face challenges due to high costs and the requirement for roadside management units to house the electronics. Embedding the power electronics within the roadway alongside with the transmitter pad would enhance installation ease and reduce costs. Placing the electronics closer to the transmitter pad also improves the overall system efficiency.
As power electronics provide charge between the ground and the vehicle, the electronics in the ground heat up due to losses within the system. This thesis seeks to understand techniques for managing the temperature rise of power electronics embedded in the roadway. The presence of electronics within the roadway restricts the use of conventional cooling methods such as fans or liquid cooling. This means that electronics must be cooled without the use of normal cooling methods. This thesis utilizes thermal simulation tools to model roadway-embedded electronics and identify strategies for mitigating temperature rise. Experimental validation of these techniques is then conducted in sand. The results of this research can help to reduce costs and address installation changes associated with Dynamic Wireless Power Transfer (DWPT) systems, thereby promoting wider adoption of EV dynamic wireless charging technology.
Lasing condition for trapped modes in subwavelength--wired PT--symmetric resonators
Creators: name: Cuevas, Mauro
name: Karimi, Mojtaba
name: Zapata-Ropdriguez, Carlos J
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The ability to control the laser modes within a subwavelength resonator is of key relevance in modern optoelectronics. This work deals with the theoretical research on optical properties of a PT--symmetric nano--scaled dimer formed by two dielectric wires, one is with loss and the other with gain, wrapped with graphene sheets. We show the existence of two non--radiating trapped modes which transform into radiating modes by increasing the gain--loss parameter. Moreover, these modes reach the lasing condition for suitable values of this parameter, a fact that makes these modes to achieve an ultra high quality factor that is manifested on the response of the structure when it is excited by a plane wave. Unlike other mechanism that transform trapped modes into radiating modes, we show that the variation of gain--loss parameter in the balanced loss--gain structure here studied leads to a variation in the phase difference between induced dipole moments on each wires, without appreciable variation in the modulus of these dipole moments. We provide an approximated method that reproduces the main results provided by the rigorous calculation. Our theoretical findings reveal the possibility to develop unconventional optical devices and structures with enhanced functionality.
In memoriam Protopresbyter Professor Vitalij Borovoj (1916-2008)
Creators: name: Schneider, Johann
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 57 Nr. 3 (2008): Ökumenische Rundschau, Band 57, Heft 3
title: On computing inverse entries of a sparse matrix in an out-of-core environment
Creators: name: Amestoy, PR
name: Duff, IS
name: Robert, Y
name: Rouet, F-H
name: Ucar, B
Publisher: name: Science and Technology Facilities Council
Year: 2010
Subjects: graphs and hypergraphs
direct methods for linear systems and matrix inversion
multifrontal method
sparse matrices

description: The inverse of an irreducible sparse matrix is structurally full, so that it is impractical to think of computing or storing it. However, there are several applications where a subset of the entries of the inverse is required. Given a factorization of the sparse matrix held in outof- core storage, we show how to compute such a subset efficiently, by accessing only parts of the factors. When there are many inverse entries to compute, we need to guarantee that the overall computation scheme has reasonable memory requirements, while minimizing the cost of loading the factors. This leads to a partitioning problem that we prove is NPcomplete. We also show that we cannot get a close approximation to the optimal solution in polynomial time. We thus need to develop heuristic algorithms, and we propose: (i) a lower bound on the cost of an optimum solution; (ii) an exact algorithm for a particular case; (iii) two other heuristics for a more general case; and (iv) hypergraph partitioning models for the most general setting. We illustrate the performance of our algorithms in practice using the MUMPS software package on a set of real-life problems as well as some standard test matrices. We show that our techniques can improve the execution time by a factor of 50.
Plankton blooms in vortices: The role of biological and hydrodynamic time scales
Creators: name: Sandulescu, M.
name: Lopez, C.
name: Hernandez-Garcia, E.
name: Feudel, U.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the interplay of hydrodynamic mesoscale structures and the growth of plankton in the wake of an island, and its interaction with a coastal upwelling. Our focus is on a mechanism for the emergence of localized plankton blooms in vortices. Using a coupled system of a kinematic flow mimicking the mesoscale structures behind the island and a simple three component model for the marine ecosystem, we show that the long residence times of nutrients and plankton in the vicinity of the island and the confinement of plankton within vortices are key factors for the appearance of localized plankton blooms
description: 29 pages, 9 figures
Letter from James Goldie to Pumps and Power Co., May 23, 1930
Creators: name: Goldie, James
Publisher: name: The University of British Columbia
Year: 2017

description: Letter from James Goldie to Pumps and Power Co., dated May 23, 1930, regarding the interest of the Water Distrcit of Winfield and Okanagan Centre being interestedin a pumping plant to raise water out of a lake and deliver it into the natural channel.
The more legs the merrier: A new composition for symmetric (multi-)lenses
Creators: name: Johnson, Michael
name: Rosebrugh, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: Lenses are a category theoretic construct and are used in a wide variety of applications. Symmetric lenses compose to, of course, form new symmetric lenses. Symmetric lenses are usually represented as spans of asymmetric lenses. In many applications, the fact that a symmetric lens might also be represented as a cospan of asymmetric lenses is important, especially for implementation purposes. However, the composition of symmetric lenses does not preserve the property that the lenses can be represented by cospans -- two such symmetric lenses may (and frequently do) compose to form a symmetric lens which cannot be represented as a cospan of asymmetric lenses. Thus preserving the factorisation to show how cospans of asymmetric lenses might be used in implementations becomes important. In 2018, the first work on multilenses was begun. Multilenses can be represented as multi-spans of asymmetric lenses (often called 'wide spans', these are spans with an arbitrary finite number of legs). In this paper we analyse a small but realistic example of a supply chain in which the cospan representations would be 'composed away' by ordinary symmetric lens composition, and introduce a new kind of composition which we call 'fusion' in which two ordinary symmetric lenses (spans with two legs) fuse to form a multilens with three legs preserving the cospan representations, and more generally, two symmetric multilenses, spans with say m and n legs, fuse to form a symmetric multilens with m+n-1 legs, again preserving cospan representations.
description: In Proceedings ACT 2020, arXiv:2101.07888
title: Exploring Complete Mental Health Screening Using Adolescent Self-Reports
Creators: name: Vinal, Stephanie A.
Publisher: name: Utah State University
Year: 2024

description: This study comprises two separate papers that ultimately aim to create and support the use of a new school screening tool to identify student risk for a variety of school-based problems as well as identify their individual strengths. Complete mental health screening refers to a process by which the entire student body of a school is administered a screening tool in order to cast a wide net and increase the likelihood of identifying any student at risk for behavioral, social, emotional, or academic difficulties. By identifying student strengths as well as their risk for problems, schools are better aimed at leveraging the students' skills and informing their interventions in a way that can lead to better outcomes. Using a collection of pre-existing measures, a new measure was created and tested using a series of statistical analyses. The result of these analyses produced a 16-item complete mental health screening measure named the Total Wellbeing School Screening Tool (TWSST). Further study was conducted to support the use of this measure in a new sample with promising results. The TWSST is a promising research tool to explore further validation studies, and a useful option for schools to use as a school screening tool.
Triangular labyrinth fractals
Creators: name: Cristea, Ligia L.
name: Surer, Paul
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 18A80, 05C38, 28A75, 51M25, 52A38, 05C05

description: We define and study a class of fractal dendrites called triangular labyrinth fractals. For the construction, we use triangular labyrinth patterns systems that consist of two triangular patterns: a white and a yellow one. Correspondingly, we have two fractals: a white and a yellow one. The fractals studied here are self-similar, and fit into the framework of graph directed constructions. The main results consist in showing how special families of triangular labyrinth patterns systems, defined based on some shape features, can generate exactly three types of dendrites: labyrinth fractals where are all nontrivial arcs have infinite length, fractals where all nontrivial arcs have finite length, and fractals where the only arcs of finite length are line segments parallel to a certain direction. We also study the existence of tangents to arcs. The paper is inspired by research done on labyrinth fractals in the unit square that have been studied during the last decade. In the triangular case, due to the geometry of traingular shapes, some new techniques and ideas are necessary in order to obtain the results.
description: 38 pages, 22 figures
Hamiltonian and physical Hilbert space in polymer quantum mechanics
Creators: name: Corichi, Alejandro
name: Vukasinac, Tatjana
name: Zapata, Jose A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, a version of polymer quantum mechanics, which is inspired by loop quantum gravity, is considered and shown to be equivalent, in a precise sense, to the standard, experimentally tested, Schroedinger quantum mechanics. The kinematical cornerstone of our framework is the so called polymer representation of the Heisenberg-Weyl (H-W) algebra, which is the starting point of the construction. The dynamics is constructed as a continuum limit of effective theories characterized by a scale, and requires a renormalization of the inner product. The result is a physical Hilbert space in which the continuum Hamiltonian can be represented and that is unitarily equivalent to the Schroedinger representation of quantum mechanics. As a concrete implementation of our formalism, the simple harmonic oscillator is fully developed.
description: 19 pages, 2 figures. Comments and references added. Version to be published in CQG
Pompeius als ‚weibischer Fuchs‘ (Iul. Caes. 323b5f.). Zur Bedeutung der Metapher ἑνὶ δακτύλῳ κνᾶται τὴν κεφαλήν in Julians Caesares
Creators: name: Hogenmüller, Boris
Publisher: name: Würzburger Jahrbücher für die Altertumswissenschaft
Year: 2024

description: Würzburger Jahrbücher für die Altertumswissenschaft, [N.F.] Bd. 42 (2018): Würzburger Jahrbücher für die Altertumswissenschaft
Spatial Signal Analysis based on Wave-Spectral Fractal Scaling: A Case of Urban Street Networks
Creators: name: Chen, Yanguang
name: Long, Yuqing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: For a long time, many methods are developed to make temporal signal analyses based on time series. However, for geographical systems, spatial signal analyses are as important as temporal signal analyses. Nonstationary spatial and temporal processes are associated with nonlinearity, and cannot be effectively analyzed by conventional analytical approaches. Fractal theory provides a powerful tool for exploring complexity and is helpful for spatio-temporal signal analysis. This paper is devoted to researching spatial signals of geographical systems by means of wave-spectrum scaling. The traffic networks of 10 Chinese cities are taken as cases for positive studies. Fast Fourier transform and least squares regression analysis are employed to calculate spectral exponents. The results show that the wave-spectral density distribution of all these urban traffic networks follows scaling law, and the spectral scaling exponents can be converted to fractal dimension values. Using the fractal parameters, we can make spatial analyses for the geographical signals. The analytical process can be generalized to temporal signal analyses. The wave-spectrum scaling methods can be applied to both self-similar fractal signals and self-affine fractal signals in the geographical world.
description: 22 pages, 7 figures, 4 tables
Letter from James Goldie to The Canadian Fairbanks Morse Co., May 23, 1930
Creators: name: Goldie, James
Publisher: name: The University of British Columbia
Year: 2017

description: Letter from James Goldie to The Canadian Fairbanks Morse Co., dated May 23, 1930, regarding the Winfield & Okanagan Centre Irrigation District being interested in a pumping plant to raise water out of a lake and into the natural channel.
Die Karthager gegen Hieron bei Polyän, Strategemata 6,16,4: eine Episode aus dem Ersten Punischen Krieg?
Creators: name: Heftner, Herbert
Publisher: name: Würzburger Jahrbücher für die Altertumswissenschaft
Year: 2024

description: Würzburger Jahrbücher für die Altertumswissenschaft, [N.F.] Bd. 42 (2018): Würzburger Jahrbücher für die Altertumswissenschaft
First-principles calculations of the vibrational properties of bulk CdSe and CdSe nanowires
Creators: name: Mohr, M.
name: Thomsen, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present first-principles calculations on bulk CdSe and CdSe nanowires with diameters of up to 22 Å. Density functional linear combination of atomic orbitals and plane wave calculations of the electronic and structural properties are presented and discussed. We use an iterative, symmetry-based method to relax the structures into the ground state. We find that the band gap depends on surface termination. Vibrational properties in the whole Brillouin zone of bulk CdSe and the zone-center vibrations of nanowires are calculated and analyzed. We find strongly size-dependent and nearly constant modes, depending on the displacement directions. A comparison with available experimental Raman data is be given.