cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modelling of the Thermal History During Submerged Arc Welding and Wire and Arc Additive Manufacturing
Creators: Shao, Anqi
Publisher: name: University of Alberta Library
Year: 2023

The finite element method (FEM) and finite element analysis (FEA) are numerical techniques to solve partial differential and ordinary differential equations. They are widely used in engineering, physics, and other fields. The development of these FEM and FEA makes it possible to accurately simulate the temperature history of many processes, such as welding and additive manufacturing process.

In this work, a general-purpose finite element analysis (FEA) software, ABAQUS, was used to predict the temperature profile on the welding line for submerged arc welding (SAW) and wire and arc additive manufacturing (WAAM) processes. A new technology called Additive Manufacturing Modeler was utilized within ABAQUS to enhance the accuracy of the simulation. The peak temperature and cooling rates can be determined with the temperature profile, which is crucial for understanding and optimizing the welding and additive manufacturing processes. Using the 3D model in ABAQUS also makes it possible to know the temperatures at any time and at any point on the plate. This allows for a more comprehensive process analysis. Additionally, the bead widths and depths during the processes can therefore be predicted, which can be used to control the final geometry of the product.

Finally, the predicted results from the ABAQUS model were compared with experimental data taken under similar conditions. For the SAW process, the results were compared with the research done by Lecoanet [1], who made measurements using thermocouples. The thermal history on the welding line and also in the heat-affected zone are analyzed and compared. As for the WAAM process, the results are compared with McDonald's [2] work, where the temperature profile on the welding line and also the solidification cooling rates were analyzed and compared. The penetration of the bead is also compared. The results from the model showed good agreement with the experimental data, validating the simulation's accuracy. The work demonstrates the applicability of using the Additive Manufacturing Modeler technology within ABAQUS for predicting temperature profiles and other process parameters in welding and additive manufacturing.
The effect of surfactant phospholipids on mucus hypersecretion in stimulated lung epithelial cells
Creators: name: Caillon, Fabienne
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Applied immunology (incl. antibody engineering, xenotransplantation and t-cell therapies)

description: Mucin hypersecretion in the airways is a hallmark of Chronic Obstructive Pulmonary Diseases (COPD) and in particular of chronic bronchitis. This study investigates how bacterial products such as LPS affect mucin production (the main constituent of mucus) and how surfactant phospholipids may modulate this effect. In two human bronchoepithelial cell lines, NCI-H292 and Calu-3, both of which express mucin gene and secrete mucins, LPS treatment resulted in an increase in secretion, production and of gene expression of MUC5AC, one of the main mucins present in airways secretion, and of MUCI, a membrane anchored mucin. LPS treatment also increased the presence of fucose, sialic acid and N-acetylgalactosamine, the main elements involved in mucin glycosylation. Using fluorescent microscopy, TLR4, part of the complex receptor for LPS, was detected on the surface of these cells and CD74, a co receptor for LPS, detected internally. Following LPS exposure, CD14 was released from cells and was detected colocalised with TLR4. LPS induced NFÐºB activity and the utilisation of a NFÐºB inhibitor abolished the effect of LPS on mucin gene expression. The main surfactant phospholipid, dipalmitoylphosphatidylcholine (DPPC), inhibited the effect of LPS on mucin production and glycosylations. It reduced NFÐºB activity induced by LPS but had no effect on CD14 release. It also inhibited mucin gene expression induced by IL-lÎ² and by TNF-Î±. Other surfactant phospholipids were tested: palmitoyl-linoleoyl-phosphatidylcholine (PLPC) had a similar modulatory effect to that seen with DPPC, palmitoyl-arachidonoylphosphatidylcholine (PAPC) showed no effect whereas palmitoyl-oxovaleroylphosphorylcholine (POVPC), a product of oxidised PAPC, also inhibited the activity of LPS. These results suggest that bacterial products in the airways are capable of inducing mucin secretion and that surfactant phospholipids modulate this effect. These findings indicate a therapeutic role for surfactant supplementation in chronic respiratory diseases.
Engaging Community Organizations in the Design, Implementation, and Assessment of The University of Alberta Residence Services' Alternative Reading Week Community Service-Learning Program
Creators: Peterson, Caitlin
Publisher: name: University of Alberta Library
Year: 2023

This research explores the role community organizations can have in the design, implementation, and assessment of the University of Alberta’s Alternative Reading Week community service-learning program to align the program with a more justice-based approach to service-learning. Specifically, this research aims to identify potential strategies that staff of University of Alberta Residence Services can utilize to highlight community organization voice in all stages of the program. The research question was “What are community organization’s perspectives on how the University of Alberta Residence Services staff can best engage them in the design, implementation, and assessment of the Alternative Reading Week program?” It was explored by surveying and interviewing five representatives from community organizations who have hosted service placements and educational workshops during Alternative Reading Week programming within the past three years (November 2019 - November 2021). A secondary data analysis of program learning outcomes, schedules, and assessment questions was also conducted. Research findings identified key areas where community organizations could be more involved in the design of the Alternative Reading Week program, including early discussions on organizational and institutional learning outcomes, preparing student participants for community organizational involvement, and communication during the planning phase of the program. Findings also highlighted that community organizations perceived their engagement with Alternative Reading Week primarily in the implementation phase of the program and as being the primary facilitators of this portion of the program. Further, organization representatives interviewed suggested an openness for community organizations to be more involved in the assessment of the Alternative Reading Week program through debriefing or contributing to program assessment questions. Particularly, how the individual context of each institutional-community partnership can influence what the engagement of a community organization in Alternative Reading Week entails. Recommendations are included on how Residence Services staff could best engage community organizations in future service-learning programs, highlighting a need for engagement to be facilitated on a case by case basis that was sensitive to each community organization’s needs, objectives, and relationship to the institution. Finally, although the research findings identify potential areas as to where community organizations could be more engaged in the Alternative Reading Week program, the specific strategies and methods of engaging community organizations requires additional research.
title: Paul Walther: Schwäbische Volkskunde. Unveränderter Nachdruck der Ausgabe von 1929, mit einem Vorwort von Leander Petzoldt. Verlag Wolfgang Weidlich. Frankfurt a. M. 1980.
Creators: name: Schöck, Inge
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 10, Nr. 3 (1981), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Towards developing CAD/CAM solutions in the retention of extra-oral facial prosthetics
Creators: name: Daniel, Steffan John Rhys
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Prosthetics and orthotics

description: In the production of removable facial prosthetics, Computer-Aided Design and Manufacture (CAD/CAM)is being increasingly explored. This PhD thesis investigates the application of CAD/CAM in the design and production of components that retain the prostheses to the anatomy. Conventional methods of hand-crafting the retention elements are well established butlittle research has considered producing these elementsusing CAD/CAM. A fully digital prosthetic workflow has not yet been developed, and the efficacy of using CAD/CAM for retention mechanism design and fabrication remains unclear. This study firstly focuses on defining the requirements for designing extra-oral prosthesis retention mechanisms, by mapping the various stages of conventional practiceand obtaining the opinions of practicing clinicians. Secondly, the qualitative findings are applied to develop a fully CAD/CAMprocess using existing technologies. Scanning, reverse engineering, design and fabrication technologies are trialled and samples of bar-clip mechanisms are produced. The final stage focuses on developing objective methods to evaluate aspects of bar-clip design previously limited to subjective evaluation, and to make an initial comparison of conventional and CAD/CAM bar-clip mechanisms.This focuses on measuring surface and dimensional quality, accuracy offit and clip retention forces.This study provides an increased knowledge-base of current prosthetic practice; CAD/CAM prosthesis production and evaluation methods; and insight into the attitudes of clinicians towards the integration & implementation of CAD/CAM. The thesis demonstrates that CAD/CAM can be used to design,produce, and integrate bar-clip retention mechanisms in all aspects of theprosthesis production workflow. Digital measurement methods allow an objective evaluation of the important aspects of bar-clip mechanism design, identifying a number of inaccuracies/design flaws that current evaluation techniques fail to identify.The study concludes that the overall CAD/CAM workflow is not yet appropriate for clinical practice but there is potential in the newly developed processes and this drives future work.
PPN expansion and FRW scalar perturbations in n-DBI gravity
Creators: name: Coelho, Flávio S.
name: Herdeiro, Carlos
name: Hirano, Shinji
name: Sato, Yuki
Publisher: name: arXiv
Year: 2013
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: n-DBI gravity explicitly breaks Lorentz invariance by the introduction of a unit time-like vector field, thereby giving rise to an extra (scalar) degree of freedom. We look for observational consequences of this mode in two setups. Firstly, we compute the parametrized post-Newtonian (PPN) expansion of the metric to first post-Newtonian order. Surprisingly, we find that the PPN parameters are exactly the same as in General Relativity (GR), and no preferred-frame effects are produced. In particular this means that n-DBI gravity is consistent with all GR solar system experimental tests. We discuss the origin of such degeneracy between n-DBI gravity and GR, and suggest it may also hold in higher post-Newtonian order. Secondly, we study gravitational scalar perturbations of a Friedmann-Robertson-Walker space-time with a cosmological constant $Λ\geq 0$. In the case of de Sitter space, we show that the scalar mode grows as the universe expands and, in contrast with a canonical scalar field coupled to GR, it does not freeze on super horizon scales.
description: 19 pages; v3, matches published version
Deep generative models for fast photon shower simulation in ATLAS
Creators: name: ATLAS Collaboration
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: p p: scattering
p p: colliding beams
photon: showers
showers: electromagnetic
showers: spatial distribution
calorimeter: electromagnetic
photon: energy
photon: particle identification
ATLAS
network
variational
GEANT
CERN LHC Coll
central region
numerical calculations: Monte Carlo

description: The need for large-scale production of highly accurate simulated event samples for the extensive physics programme of the ATLAS experiment at the Large Hadron Collider motivates the development of new simulation techniques. Building on the recent success of deep learning algorithms, variational autoencoders and generative adversarial networks are investigated for modelling the response of the central region of the ATLAS electromagnetic calorimeter to photons of various energies. The properties of synthesised showers are compared with showers from a full detector simulation using GEANT4. Both variational autoencoders and generative adversarial networks are capable of quickly simulating electromagnetic showers with correct total energies and stochasticity, though the modelling of some shower shape distributions requires more refinement. This feasibility study demonstrates the potential of using such algorithms for ATLAS fast calorimeter simulation in the future and shows a possible way to complement current simulation techniques.
How Many of the Observed Neutrino Events Can Be Described by Cosmic Ray Interactions in the Milky Way?
Creators: name: Joshi, Jagdish C.
name: Winter, Walter
name: Gupta, Nayantara
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cosmic rays diffuse through the interstellar medium and interact with matter and radiations as long as they are trapped in the Galactic magnetic field. The IceCube experiment has detected some TeV-PeV neutrino events whose origin is yet unknown. We study if all or a fraction of these events can be described by the interactions of cosmic rays with matter. We consider the average target density needed to explain them for different halo sizes and shapes, the effect of the chemical composition of the cosmic rays, the impact of the directional information of the neutrino events, and the constraints from gamma ray bounds and their direction. We do not require knowledge of the cosmic ray escape time or injection for our approach. We find that, given all constraints, at most 0.1 of the observed neutrino events in Ice-Cube can be described by cosmic ray interactions with matter. In addition, we demonstrate that the currently established chemical composition of the cosmic rays contradicts a peak of the neutrino spectrum at PeV energies.
description: Table 2 corrected + comments in main text
Trion magnetic polarons in (Cd,Mn)Te/(Cd,Mn,Mg)Te quantum wells
Creators: name: Godejohann, F.
name: Akhmadullin, R. R.
name: Kavokin, K. V.
name: Yakovlev, D. R.
name: Akimov, I. A.
name: Namozov, B. R.
name: Kusrayev, Yu. G.
name: Karczewski, G.
name: Wojtowicz, T.
name: Bayer, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A trion magnetic polaron formed by the exchange interaction of a positively charged exciton (trion) with localized spins of Mn$^{2+}$ ions is found experimentally in a 4\,nm wide Cd$_{0.98}$Mn$_{0.02}$Te/Cd$_{0.78}$Mn$_{0.02}$Mg$_{0.2}$Te quantum well containing resident holes. The experiment is performed at a temperature of 1.6 K using resonant excitation of the trion with circularly polarized light. The trion is formed from a resident hole, which is in a hole magnetic polaron state, and a photogenerated electron-hole pair. The dynamical evolution from the hole magnetic polaron to the trion magnetic polaron is accompanied by a spin-flip of the electron, which results in negative circular polarization of the photoluminescence. The degree of circular polarization reaches $-8\%$ at zero magnetic field and strongly decreases in transverse magnetic fields exceeding 0.2 T. Our model considerations show that different localization sizes of the resident and photogenerated holes and the resulting difference in their exchange interaction with the Mn$^{2+}$ spins maintains Mn spin polarization. The resulting exchange field of Mn acting on the electron provides a robust spin polarization of the trion magnetic polaron. We evaluate the electron exchange energy in the T$^+$MP to be 0.19~meV, and the T$^+$MP binding energy to be about 0.5 - 1 meV.
The role of quantum recurrence in superconductivity, carbon nanotubes and related gauge symmetry breaking
Creators: name: Dolce, Donatello
name: Perali, Andrea
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Physics (physics.gen-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Pure quantum phenomena are characterized by intrinsic recurrences in space and time. We use such an intrinsic periodicity as a quantization condition to derive the essential phenomenology of superconductivity. The resulting description is based on fundamental quantum dynamics and geometrical considerations, rather than on microscopical characteristics of the superconducting materials. This allows for the interpretation of the related gauge symmetry breaking by means of the competition between quantum recurrence and thermal noise. We also test the validity of this approach to describe the case of carbon nanotubes.
description: Published version. Comments welcome
Stability of the non-perturbative $O(D,D)$ de-Sitter spacetime. The isotropic case
Creators: name: Bieniek, Przemysław
name: Chojnacki, Jan
name: Kwapisz, Jan H.
name: Meissner, Krzysztof A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The existence of de-Sitter solutions and their stability within string theory became, in recent years, one of the central research questions within the string theory community. The so-called de-Sitter conjecture states that the de-Sitter vacua are unstable within string theory. Here, we study the de-Sitter solutions in string theory and their stability in the time direction using the $O(d,d)$ symmetry approach allowing for the calculation of the generic form of the string theory effective action. We study the undiscussed case of the constant generalized dilaton as well as the general form of dilaton couplings. Our findings suggest that de-Sitter solutions are unstable for the constant generalized dilaton both with and without matter. Furthermore, we found that in order for the theory to be weakly coupled the general form of dilaton coupling is in the form of a cosmological constant.
description: 8 pages, 3 figures
Next-to-leading-power kinematic corrections to DVCS: a scalar target
Creators: name: Braun, V. M.
name: Ji, Yao
name: Manashov, A. N.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: target, mass, correction
operator, twist
deeply virtual Compton scattering, coherence
mass, correction
target, mass
helicity, amplitude analysis
higher-order, 0
kinematics
operator product expansion
electromagnetic
factorization
nucleus
perturbation theory

description: Using the recent results on the contributions of descendants of the leading twist operators to the operator product expansion of two electromagnetic currents we derive explicit expressions for the kinematic finite-$t$ and target mass corrections to the DVCS helicity amplitudes to the $1/Q^4$ power accuracy. The cancellation of IR divergences for kinematic corrections is demonstrated to all powers in the leading order of perturbation theory. We also argue that target mass corrections in the coherent DVCS from nuclei are small and do not invalidate the factorization theorem.
The antimicrobial activity of Sudanese honeys alone and in combination with plant extracts and ethylenediamineteraacetic acid (edta)
Creators: name: Hashim, Ahmed
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Microbiology not elsewhere classified

description: Honey and plant extracts have a long hitory of medicinal use in Sudan that continues to the present day. The antimicrobial properties of Manuka honey and its use as a topical wound treatment is now widely recognised but of limited availability in developing countries. This study examines the physico-chemical properties and antimicrobial activity of Sudanese honeys and synergistic interactions between selected honeys and plant extracts. A sample of 60 floral honeys from Sudan were collected direct from honey producers and 15 plant extracts were obtained from Sudan National Centre for Research. These were characterised and the antimicrobial activity against Escherchia coli (NCTC 10418) and Staphylococcus aureus (NCTC 6571) determined using bioassay and minimum inhibitory concentration methods. Selected honeys, Ethylenediaminetetractic acid (EDTA) and plant extracts were then studied for synergistic interactions. Although the honeys had similar physico-chemical characteristics as honeys from other published studies, none exhibited the non-peroxidal activity associated with Manuka honey. A number exhibited strong peroxidal activity. The type of hive used, the site of collection and producer (beekeeper) had a statistically significant impact on the antimicrobial activity. Acacia nioltica and Tamarindus indica plant extracts showed marked antimicrobial activity before and after autoclaving and were chosen for synergistic interaction with a selected honey. Synergy was screened using an agar diffusion bioassay using Canvas software to measure the change in area of zone of growth inhibition to determine bacteriostatic synergy. This was then confirmed using the time-kill curve method. Synergistic interaction was noted between honey and EDTA against Staphylococcus aureus and Acacia and EDTA against Escherichia coli. The results are discussed in relation to the medical use of honey and plant extracts in Sudan and concludes that there is a need to further explore the potential for local production of bioactive honeys for use in conjunction with plant extracts. The Sudanese government should conduct further translational research in this area.
The 4d/2d correspondence in twistor space and holomorphic Wilson lines
Creators: name: Bu, Wei
name: Casali, Eduardo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give an explicit realization of the 4d local operator / 2d conformal block correspondence of Costello and Paquette in the case of gauge theories. This is accomplished by lifting the 4d local operators to non-local operators in twistor space using a holomorphic generalization of the Wilson line. This procedure automatically constructs the 2d conformal blocks corresponding to the local operator. We interpret this lifting as effectively integrating out the 2d degrees of freedom living on the defect. We present some 2d chiral CFT representations of the defect algebra whose correlators reproduce the conformal blocks obtained by the lifting procedure.
description: v2, JHEP accepted version
title: Luftbildarchäologie in Baden-Württemberg
Creators: name: Planck, Dieter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 12, Nr. 1 (1983), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Acoustic radiation force and torque on an absorbing compressible particle in an inviscid fluid
Creators: name: Silva, Glauber T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Exact formulas of the acoustic radiation force and torque exerted by an arbitrary time-harmonic wave on an absorbing compressible particle that is suspended in an inviscid fluid are presented. It is considered that the particle diameter is much smaller than the incident wavelength, i.e. the so-called Rayleigh scattering limit. Moreover, the particle absorption assumed here is due to the attenuation of compressional waves only. Shear waves inside and outside the particle are neglected, since the inner and outer viscous boundary layer of the particle are supposed to be much smaller than the particle radius. The obtained radiation force formulas are used to establish the trapping conditions of a particle by a single-beam acoustical tweezer based on a spherically focused ultrasound beam. In this case, it is shown that the particle absorption has a pivotal role in single-beam trapping at the transducer focal region. Furthermore, it is found that only the first-order Bessel vortex beam can generate the radiation torque on a small particle. In addition, numerical evaluation of the radiation force and torque exerted on a benzene and an olive oil droplet suspended in water are presented and discussed.
description: 9 pages, 6 figures. Accepted for publication in the Journal of the Acoustical Society of America
title: Mitteilung
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 15, Nr. 3 (1986), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
A First Look into the Nature of JWST/MIRI 7.7 micron Sources from SMACS 0723
Creators: name: Iani, Edoardo
name: Caputi, Karina I.
name: Rinaldi, Pierluigi
name: Kokorev, Vasily
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Until now, our knowledge of the extragalactic Universe at mid-IR wavelengths (> 5 microns) was limited to rare active galactic nuclei (AGN) and the brightest normal galaxies up to z~3. The advent of the JWST with its Mid-Infrared Instrument (MIRI) will revolutionise the ability of the mid-IR regime as a key wavelength domain to probe the high-z Universe. In this work we present a first study of JWST MIRI 7.7 micron sources selected with > 3 sigma significance from the lensing cluster field SMACS J0723.3-7327. We model their spectral energy distribution fitting with 13 JWST and HST broad bands, in order to obtain photometric redshifts and derived physical parameters for all these sources. We find that this 7.7 micron galaxy sample is mainly composed of normal galaxies up to z=4 and has a tail of about 2% of sources at higher redshifts to z~ 9-10. The vast majority of our galaxies have [3.6]-[7.7]<0 colours and very few of them need high dust extinction values (A_V=3 -6 mag) for their SED fitting. The resulting lensing-corrected stellar masses span the range 10^7-10^{11} Msun. Overall, our results clearly show that the first MIRI 7.7 micron observations of deep fields are already useful to probe the high-redshift Universe and suggest that the deeper 7.7 micron observations to be available very soon will open up, for the first time, the epoch of reionisation at mid-IR wavelengths.
description: 13 pages, 9 figures, 2 tables. Accepted for publication at the ApJ. In the current version we make the 7.7 micron source catalogue publicly available
All-Electron, Density Functional-Based Method for Angle-Resolved Tunneling Ionization in the Adiabatic Regime
Creators: name: Wahyutama, Imam S.
name: Jayasinghe, Denawakage D.
name: Mauger, François
name: Lopata, Kenneth
name: Gaarde, Mette B.
name: Schafer, Kenneth J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We develop and test a method that integrates many-electron weak-field asymptotic theory (ME-WFAT) [Phys. Rev. A 89, 013421 (2014)] in the integral representation (IR) into the density functional theory (DFT) framework. In particular, we present modifications of the integral formula in the IR ME-WFAT to incorporate the potential terms unique to DFT. By solving an adiabatic rate equation for the angle-resolved ionization yield in our DFT-based ME-WFAT method, we show that the results are in excellent agreement with those of real-time time-dependent density functional theory (RT-TDDFT) simulations for NO, OCS, CH$_3$Br, and CH$_3$Cl interacting with one- and two- color laser fields with a fundamental wavelength of $800$ nm. This agreement is significant because the WFAT calculations take only a small fraction of the time of full TDDFT calculations. These results suggest that in the wavelength region commonly used in strong-field experiments ($800$ nm and longer), our DFT-based WFAT treatment can be used to rapidly screen for the ionization properties of a large number of molecules as a function of alignment or orientation between the molecule and the strong field.
"Comparative evaluation and co-relation in variation of curve of Spee and curve of Wilson in Class II div. 1, Class II div. 2, and Class III as against Class I malocclusion in central India population- an In Vitro study"
Creators: name: Dr. Ruchika Pandey
name: Dr. Ranjit Kamble
Publisher: name: Zenodo
Year: 2023
Subjects: Curve of Spee, Curve of Wilson, Occlusion, Functional occlusion

description: SPIRIT Checklist
title: St. Vitus, ein Schmuckstück für Fischbach, Stadt Friedrichshafen
Creators: name: Neff, Leopold
name: Mikusch, Hans
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 15, Nr. 4 (1986), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Search for new phenomena in multi-body invariant masses in events with at least one isolated lepton and two jets using $\sqrt{s} = 13$ TeV proton-proton collision data collected by the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: p p, scattering
width, difference
resonance, decay
lepton
ATLAS
TeV
new physics
branching ratio
cascade decay
quark
mass spectrum
CERN LHC Coll
background

description: A search for resonances in events with at least one isolated lepton ($e$ or $\mu$) and two jets is performed using $139 \, {\text{fb}}^{-1}$ of $\sqrt{s}=13$ TeV proton-proton collision data recorded by the ATLAS detector at the LHC. Deviations from a smoothly falling background hypothesis are tested in three- and four-body invariant mass distributions constructed from leptons and jets, including jets identified as originating from bottom quarks. Model-independent limits on generic resonances characterised by cascade decays of particles leading to multiple jets and leptons in the final state are presented. The limits are calculated using Gaussian shapes with different widths for the invariant masses. The multi-body invariant masses are also used to set 95% confidence level upper limits on the cross-section times branching ratios for the production and subsequent decay of resonances predicted by several new physics scenarios
Enveloping operads and bicoloured noncrossing configurations
Creators: name: Chapoton, Frédéric
name: Giraudo, Samuele
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: An operad structure on certain bicoloured noncrossing configurations in regular polygons is studied. Motivated by this study, a general functorial construction of enveloping operad, with input a coloured operad and output an operad, is presented. The operad of noncrossing configurations is shown to be the enveloping operad of a coloured operad of bubbles. Several suboperads are also investigated, and described by generators and relations.
description: 27 pages
The Decay Rate of Bound Pion to Bound Muon
Creators: Anjum, Nuzhat
Publisher: name: University of Alberta Library
Year: 2023

The decay rate of exotic atoms is of great importance due to their short lifetimes, which presents a challenge when attempting to probe them. The study of pionic atoms can open up a new area of physics, and experiments such as the PiHe collaboration have found a new method of laser spectroscopy for pionic helium. [1].

The first part of this thesis provides a rigorous calculation of the atomic form factor, which involves evaluating an integration of a slowly convergent and oscillatory integrand. The main goal is to transform the integral into a summation which is easy to compute from the computational perspective. Using the plane wave expansion, the integral is separated into two separate integral, which are radial and angular integrals. The integral involving the product of Bessel functions and associated Laguerre polynomials is used to calculate the radial integral. The angular integral is evaluated using the Wigner’s 3−j symbol. An explicit analytical expression for the discrete-discrete transition form factor is presented, exactly in the way they are implemented in the program. Atomic form factor is an important factor in the calculation of decay rate and scattering amplitude.

The second part of the thesis investigates the decay rate of the pion bound in a Coulomb potential, which is an exotic atom. The bound pion in a hydrogen atom is formed when an electron of an ordinary hydrogen atom is replaced by a negative pion. We consider the bound pion decaying into a bound muon, producing muonic hydrogen and a muon antineutrino. Using the form factor calculation from the first part, we present the decay rate of the bound pion and the most probable final state of the muon. In the calculation of decay rate, we considered the non-relativistic wave function of the initial and final particles, since the velocity of pion in hydrogen is of the order of αc, where α is the fine structure constant.
$F(R)$ nonlinear massive theories of gravity and their cosmological implications
Creators: name: Cai, Yi-Fu
name: Duplessis, Francis
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a nonlinear massive gravitational theory which includes $F(R)$ modifications. This construction inherits the benefits of the de Rham-Gabadadze-Tolley model and is free of the Boulware-Deser ghost due to the existence of a Hamiltonian constraint accompanied by a nontrivial secondary one. The scalar perturbations in a cosmological background can be stabilized at the linear level for a wide class of the $F(R)$ models. The linear scalar mode arisen from the $F(R)$ sector can absorb the nonlinear longitudinal graviton, and hence, our scenario demonstrates the possibility of a gravitational Goldstone theorem. Finally, due to the combined contribution of the $F(R)$ and graviton-mass sectors, the proposed theory allows for a large class of cosmological evolutions, such as the simultaneous and unified description of inflation and late-time acceleration.
description: 6 pages, 1 figure, version published in Phys. Rev. D
SKYSURF-3: Testing Crowded Object Catalogs in the Hubble eXtreme Deep Field Mosaics to Study Sample Incompleteness from an Extragalactic Background Light Perspective
Creators: name: Kramer, Darby
name: Carleton, Timothy
name: Cohen, Seth H.
name: Grogin, Norman A.
name: Jansen, Rolf A.
name: Koekemoer, Anton M.
name: Mackenty, John W.
name: Pirzkal, Norbert
name: Windhorst, Rogier A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Extragalactic Background Light (EBL) studies have revealed a significant discrepancy between direct measurements -- via instruments measuring "bare" sky from which Zodiacal and Galactic light models are subtracted -- and measurements of the Integrated Galaxy Light (IGL). This discrepancy could lie in either method, whether it be an incomplete Zodiacal model or missed faint galaxies in the IGL calculations. It has been proposed that the discrepancy is due to deep galaxy surveys, such as those with the Hubble Space Telescope (HST), missing up to half of the faint galaxies with $24 \le m_{AB} \le 29$ mag. We address this possibility by simulating higher number densities of galaxies, and so assess incompleteness due to object overlap, with three replications of the Hubble UltraDeep Field (HUDF). SourceExtractor is used to compare the recovered counts and photometry to the original HUDF, allowing us to assess how many galaxies may have been missed due to confusion, i.e., due to blending with neighboring faint galaxies. This exercise reveals that, while up to 50% of faint galaxies with $28 \le m_{AB} \le 29$ mag were missed or blended with neighboring objects in certain filters, not enough were missed to account for the EBL discrepancy alone in any of the replications.
description: 12 pages, 5 figures. This version includes edits made according to the anonymous referee's comments. To be published in the Astrophysical Journal Letters
title: Die Renovierung der Adamssäge, eines technischen Kulturdenkmals des 17./19. Jahrhunderts
Creators: name: Hillenbrand, Peter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 15, Nr. 4 (1986), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
A causality preserving evolution of a pair of strings
Creators: name: Krasnikov, Serguei
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: As shown by Gott, a pair of straight cosmic strings moving in opposite directions, when they have suitable speed and impact parameter, produce closed timelike curves. I argue in this paper that there always is a not-so-frightening alternative: the Universe may prefer to produce a certain (surprisingly simple and absolutely mild) singularity instead.
description: More details
Energetics and efficiency of a molecular motor model
Creators: name: Fogedby, Hans C.
name: Svane, Axel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The energetics and efficiency of a linear molecular motor model proposed by Mogilner et al. (Phys. Lett. 237, 297 (1998)) is analyzed from an analytical point of view. The model which is based on protein friction with a track is described by coupled Langevin equations for the motion in combination with coupled master equations for the ATP hydrolysis. Here the energetics and efficiency of the motor is addressed using a many body scheme with focus on the efficiency at maximum power (EMP). It is found that the EMP is reduced from about 10 pct in a heuristic description of the motor to about 1 per mille when incorporating the full motor dynamics, owing to the strong dissipation associated with the motor action.
description: 23 pages, 6 figures, final version, appeared in J. Stat. Mech. P12001 (2013)
title: Gedanken zur Sanierung der Tragkonstruktion von Altbauten
Creators: name: Eisinger, Robert
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 15, Nr. 4 (1986), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Role of correlations in the two-body-marginal problem
Creators: name: Chen, Lin
name: Gittsovich, Oleg
name: Modi, Kavan
name: Piani, Marco
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum properties of correlations have a key role in disparate fields of physics, from quantum information processing, to quantum foundations, to strongly correlated systems. We tackle a specific aspect of the fundamental quantum marginal problem: we address the issue of deducing the global properties of correlations of tripartite quantum states based on the knowledge of their bipartite reductions, focusing on relating specific properties of bipartite correlations to global correlation properties. We prove that strictly classical bipartite correlations may still require global entanglement and that unentangled---albeit not strictly classical---reductions may require global genuine multipartite entanglement, rather than simple entanglement. On the other hand, for three qubits, the strict classicality of the bipartite reductions rules out the need for genuine multipartite entanglement. Our work sheds new light on the relation between local and global properties of quantum states, and on the interplay between classical and quantum properties of correlations.
description: 10 pages, 1 figure, close to final published version
title: O. Rau und U. Braune: Der Altbau, Renovieren, Restaurieren, Modernisieren. Leinfelden- Echterdingen, 1985.
Creators: name: Hannmann, Eckart
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 15, Nr. 4 (1986), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
An M-Theoretic Derivation of a 5d and 6d AGT Correspondence, and Relativistic and Elliptized Integrable Systems
Creators: name: Tan, Meng-Chwan
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We generalize our analysis in [arXiv:1301.1977], and show that a 5d and 6d AGT correspondence for SU(N) -- which essentially relates the relevant 5d and 6d Nekrasov instanton partition functions to the integrable representations of a q-deformed and elliptic affine W_N-algebra -- can be derived, purely physically, from the principle that the spacetime BPS spectra of string-dual M-theory compactifications ought to be equivalent. Via an appropriate defect, we also derive a "fully-ramified" version of the 5d and 6d AGT correspondence where integrable representations of a quantum and elliptic affine SU(N)-algebra at the critical level appear on the 2d side, and argue that the relevant "fully-ramified" 5d and 6d Nekrasov instanton partition functions are simultaneous eigenfunctions of commuting operators which define relativistic and elliptized integrable systems. As an offshoot, we also obtain various mathematically novel and interesting relations involving the double loop algebra of SU(N), elliptic Macdonald operators, equivariant elliptic genus of instanton moduli space, and more.
description: 53 pages (inclusive of essential review material from arXiv:1301.1977). Minor change in (3.22)
Creating a Sense of Place for Iranian Immigrants in Canada
Creators: Arabzadeh Bahri, Shamim
Publisher: name: University of Alberta Library
Year: 2023

Immigration is a life-changing decision accompanied by new experiences for individuals. Depending on background, this experience can be varied from one to another and can influence the experience of sense of place in the new environment. This thesis contributes to this area of inquiry by applying a case study approach to examine Iranian immigrants’ lived experiences and their sense of place in Toronto, Canada and to find out how Iranian community organizations play a role in the making of a sense of place for these immigrants. The research conducted in-depth interviews with Iranian immigrants who moved to Canada between 2005 and 2015 and found that factors such as age, prior experiences in the home country, personal traits, and family relations are all involved in how one settles in and the inclination to join a community organization. This work also found that these organizations need to perform better to satisfy their community.
Polarization-selective magneto-optical modulation
Creators: name: Nayak, Banoj Kumar
name: Buks, Eyal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study magneto-optical coupling in a ferrimagnetic sphere resonator made of Yttrium iron garnet. We find that the resonator can be operated in the telecom band as a polarization-selective optical modulator. Intermodulation gain can be employed in the nonlinear regime for amplification.
title: Gartenstadt Haslach in Freiburg
Creators: name: Roth, Erik
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 24, Nr. 4 (1995), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Kinetic Density Functional Theory of Freezing
Creators: name: Baskaran, Arvind
name: Baskaran, Aparna
name: Lowengrub, John
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A theory of freezing of a dense hard sphere gas is presented. Starting from a revised Enskog theory, hydrodynamic equations that account for non-local variations in the density but local variations in the flow field are derived using a modified Chapman Enskog procedure. These hydrodynamic equations, which retain structural correlations, are shown to be effectively a time dependent density functional theory. The ability of this theory to capture the solid liquid phase transition is established through analysis and numerical simulations.
title: Idea Store, Médiathèque, Learning Center: Ausgewählte Bibliothekskonzeptionen im Vergleich
Creators: name: Heinrich, Indra
Publisher: name: University Library Heidelberg
Year: 2014

description: Seit etwa Mitte der 1990er Jahre entstanden an verschiedenen Orten neue Bibliothekskonzepte, die unter den Bezeichnungen „Idea Store“, „Médiathèque“ und „Learning Center“ weltweit Aufmerksamkeit erregten. Alle drei Konzepte setzen auf eine verstärkte Interaktion zwischen Bibliothek und ihren Nutzerinnen sowie Nutzern, eine oftmals mit spektakulären Neubauten einhergehende Aufwertung der Bibliothek als Ort, überinstitutionelle Kooperationen und eine radikale Zielgruppenorientierung. Ihre Anregungen wurden in mehreren Ländern mehr oder weniger explizit aufgegriffen und prägen die aktuelle bibliothekarische Diskussion über die Zukunft der Bibliotheken mit. Im vorliegenden Artikel werden die drei Konzepte „Idea Store“, „Médiathèque“ und „Learning Center“ in ihren Grundlinien vorgestellt und in den jeweiligen Entstehungskontext eingebettet. Darüber hinaus werden sie miteinander verglichen, Gemeinsamkeiten und Unterschiede zwischen ihnen herausgearbeitet sowie ein Fazit über die Potentiale und Beschränkungen der Konzepte gezogen. Dadurch geraten auch die Anregungen dieser Konzepte in den Blick, die für das deutsche Bibliothekswesen fruchtbar sind.
description: Perspektive Bibliothek, Bd. 3, Nr. 1 (2014), Beginn und Erscheinungsfrequenz: Nummer: 1, Jahr: 2012, Bände pro Jahr: 1