cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Well-posedness and qualitative behavior of solutions for a two-phase Navier-Stokes-Mullins-Sekerka system
Creators: name: Abels, Helmut
name: Wilke, Mathias
Publisher: name: Universität Regensburg
Year: 2011
Subjects: subject: Two-phase flow, Navier-Stokes system, Free boundary problems, Mullins-Sekerka equation, convergence to equilibria
subject: 510 Mathematik
subject: 35R35
subject: 35Q30
subject: 76D27
subject: 76D45
subject: 76T99

description: We consider a two-phase problem for two incompressible, viscous and immiscible fluids which are separated by a sharp interface. The problem arises as a sharp interface limit of a diffuse interface model. We present results on local existence of strong solutions and on the long-time behavior of solutions which start close to an equilibrium. To be precise, we show that as time tends to infnity, the velocity field converges to zero and the interface converges to a sphere at an exponential rate.
Loop quantum cosmology of a radiation-dominated flat FLRW universe
Creators: name: Pawlowski, Tomasz
name: Pierini, Roberto
name: Wilson-Ewing, Edward
Publisher: name: arXiv
Year: 2014
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: We study the loop quantum cosmology of a flat Friedmann-Lemaitre-Robertson-Walker space-time with a Maxwell field. We show that many of the qualitative properties derived for the case of a massless scalar field also hold for a Maxwell field. In particular, the big-bang singularity is replaced by a quantum bounce, and the operator corresponding to the matter energy density is bounded above by the same critical energy density. We also numerically study the evolution of wave functions that are sharply peaked in the low energy regime, and derive effective equations which very closely approximate the full quantum dynamics of sharply peaked states at all times, including the near-bounce epoch. In the process, the analytical and numerical methods originally used to study the dynamics in LQC for the case of a massless scalar field are substantially improved to handle the difficulties (that generically arise for matter content other than a massless scalar field) related to the presence of a Maxwell field.
description: 29 pages, 6 figures, v2: Clarifications added, notation improved and presentation streamlined; matches the version accepted for publication in PRD
Οικονομοτεχνική ανάλυση και αξιολόγηση για την ίδρυση ξενοδοχείου στα Μάλια
Creators: name: Σαμπροβαλάκης, Εμμανουήλ
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2022
Subjects: subject: Οικονομοτεχνική μελέτη
subject: Κρήτη
subject: Μάλια
subject: Τουρισμός
subject: Ξενοδοχείο
subject: Ανέγερση

description: Η παρούσα εργασία αφορά την οικονομοτεχνική μελέτη ανέγερσης ξενοδοχειακής μονάδας, που θα στοχεύει στον εναλλακτικό τουρισμό με eco – friendly χαρακτηριστικά στη περιφέρεια Κρήτης και πιο συγκεκριμένα στα Μάλια του νομού Ηρακλείου. Η οικονομοτεχνική μελέτη συστάθηκε έπειτα από το ενδιαφέρον των επενδυτών για την ανέγερση ενός ξενοδοχειακού συγκροτήματος στην περιοχή των Μαλίων όπου δραστηριοποιούνται τα τελευταία χρόνια οι επενδυτές.
Supplementary Material from Phylogenomic diversity of archigregarine apicomplexans
Creators: name: Lax, Gordon
name: Park, Eunji
name: Na, Ina
name: Jacko-Reynolds, Victoria
name: Kwong, Waldan K
name: House, Chloe S. E.
name: Trznadel, Morelia
name: Wakeman, Kevin
name: Leander, Brian
name: Keeling, Patrick J
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology

description: Suppl-Fig5_FSR_v1.pdf
Bosonic loop diagrams as perturbative solutions of the classical field equations in 4-theory
Creators: name: Finster, Felix
name: Tolksdorf, Jürgen
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: boundary problem, surface tension, anisotropy, kinetic undercooling, Gibbs–Thomson law, dendritic growth, snow crystal growth, facet breaking.
subject: 510 Mathematik

description: Solutions of the classical �4-theory in Minkowski space-time are analyzed in a perturbation expansion in the nonlinearity. Using the language of Feynman diagrams, the solution of the Cauchy problem is expressed in terms of tree diagrams which involve the retarded Green’s function and have one outgoing leg. In order to obtain general tree diagrams, we set up a “classical measurement process” in which a virtual observer of a scattering experiment modifies the field and detects suitable energy differences. By adding a classical stochastic background field, we even obtain all loop diagrams. The expansions are compared with the standard Feynman diagrams of the corresponding quantum field theory.
Analytic varieties with finite volume amoebas are algebraic
Creators: name: Madani, Farid
name: Nisse, Mounir
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: Analytic varieties, algebraic varieties, amoebas, coamoebas, logarithmic limit sets, phase limit sets, spherical polyhedrons
subject: 510 Mathematik
subject: 14T05
subject: 32A60

description: In this paper, we study the amoeba volume of a given k-dimensional generic analytic variety V of the complex algebraic torus (C�)n. When n � 2k, we show that V is algebraic if and only if the volume of its amoeba is finite. Moreover, in this case, we establish a comparison theorem for the volume of the amoeba and the coamoeba. Examples and applications to the k-linear spaces will be given.
Positively curved GKM-manifolds
Creators: name: Goertsches, Oliver
name: Wiemeler, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 53C20, 55N91, 57S15

description: Let T be a torus of dimension at least k and M a T-manifold. M is a GKM_k-manifold if the action is equivariantly formal, has only isolated fixed points, and any k weights of the isotropy representation in the fixed points are linearly independent. In this paper we compute the cohomology rings with real and integer coefficients of GKM_3- and GKM_4-manifolds which admit invariant metrics of positive sectional curvature.
description: 19 pages, 7 figures. Final version, to appear in IMRN
Education-based grant programmes for bottom-up distance learning and project catalysis: Antimicrobial Resistance in Sub-Saharan Africa
Creators: name: Graham, Chris
name: Akligoh, Harry
name: Ori, Joy King
name: Adzaho, Gameli
name: Salekwa, Linda
name: Campbell, Patrick
name: Saba, Courage KS
name: Landrain, Thomas E.
name: Santolini, Marc
Publisher: name: Microbiology Society
Year: 2022
Subjects: Curriculum and pedagogy theory and development
Microbial ecology
Microbiology not elsewhere classified

description: Supporting data for article 'Education-based grant programmes for bottom-up distance learning and project catalysis: Antimicrobial Resistance in Sub-Saharan Africa' in Access Microbiology.
 Review form used to differentiate projects on AMR: AMR Grant Review Form_ Supplementary Materials - Google Forms.pdf
 Microbis location data: AMRlocationdata.gpx
 Form for application to the AMR workshops held July 2021: AMR Workshop Application - Google Forms.pdf
Elektronenfelder in der klinischen Anwendung
Creators: name: Treutwein, Marius
name: Bogner, Ludwig
Publisher: name: Universität Regensburg
Year: 2007
Subjects: subject: Elektronen,Pencil Beam,Monte Carlo, Algorithmus
subject: 610 Medizin

description: BACKGROUND AND PURPOSE: For several years three-dimensional treatment-planning systems have used pencil beam algorithms in the calculation of electron fields. Nowadays, exact Monte Carlo methods are commercially available, showing good correspondence to experimental results. Clinical examples are investigated to find differences in the dose distribution of treatment plans, which are calculated with both pencil beam and Monte Carlo algorithm. MATERIAL AND METHODS: Two different clinical applications are regarded: (1) an irradiation of the chest wall, and (2) an electron field to the vertebral column. The dose distributions are calculated by Oncentra MasterPlan on the one hand, using the Monte Carlo code VMC++, and by Helax TMS on the other hand (both Nucletron B.V., Veenendaal, The Netherlands). Profiles and depth dose curves are evaluated by the Verisoft program of PTW (Freiburg, Germany). RESULTS: In the case of chest wall irradiation, the depth dose curves for the three investigated energies, 9, 15 and 21 MeV, agree rather well, also in lung tissue. The mean value for the lung differs only by 4% related to the dose maximum. In the case of vertebral column irradiation, however, the dose difference is more pronounced and, in the prevertebral region, is 56% lower for the VMC++ plan than in the pencil beam calculation. CONCLUSION: For irradiations of the chest wall, dose distribution calculations by means of pencil beam algorithm may be applied. Calculating electron dose distributions in cases of larger bone inhomogeneities, the more exact Monte Carlo algorithm should be preferred.
Construction, Measurement, Shimming, and Performance of the NIST-4 Magnet System
Creators: name: Seifert, Frank
name: Panna, Alireza
name: Li, Shisong
name: Han, Bing
name: Chao, Leon
name: Cao, Austin
name: Haddad, Darine
name: Choi, Heeju
name: Haley, Lori
name: Schlamminger, Stephan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The magnet system is one of the key elements of a watt balance. For the new watt balance currently under construction at the National Institute of Standards and Technology, a permanent magnet system was chosen. We describe the detailed construction of the magnet system, first measurements of the field profile, and shimming techniques that were used to achieve a flat field profile. The relative change of the radial magnetic flux density is less than $10^{-4}$ over a range of 5 cm. We further characterize the most important aspects of the magnet and give order of magnitude estimates for several systematic effects that originate from the magnet system.
description: v2: changed layout; 13 pages, 15 figures. published in IEEE Trans. Instrum. Meas. 63, 3027-3028 (2014), http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6827217&isnumber=6940066
Linear Response Theory for Shear Modulus $C_{66}$ and Raman Quadrupole Susceptibility: Significant Evidence for Orbital Nematic Fluctuations in Fe-Based Superconductors
Creators: name: Kontani, Hiroshi
name: Yamakawa, Youichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The emergence of the nematic order and fluctuations has been discussed as a central issue in Fe-based superconductors. To clarify the origin of the nematicity, we focus on the shear modulus $C_{66}$ and the Raman quadrupole susceptibility $χ_{x^2-y^2}^{Raman}$. Due to the Aslamazov-Larkin vertex correction, the nematic-type orbital fluctuations are induced, and they enhances both $1/C_{66}$ and $χ_{x^2-y^2}^{Raman}$ strongly. However, $χ_{x^2-y^2}^{Raman}$ remains finite even at the structure transition temperature $T_S$, because of the absence of the band Jahn-Teller effect and the Pauli (=intra-band) contribution, as proved in terms of the linear response theory. The present study clarifies that origin of the nematicity in Fe-based superconductors is the nematic-orbital order/fluctuations.
description: 7 pages, 5 figures, text and figures have been revised, supplemental material was added, to be published in Phys. Rev. Lett
A construction of conformal-harmonic maps
Creators: name: Biquard, Olivier
name: Madani, Farid
Publisher: name: Universität Regensburg
Year: 2012
Subjects: subject: 510 Mathematik

description: Conformal harmonic maps from a 4-dimensional conformal manifold to a Riemannian manifold are maps satisfying a certain conformally invariant fourth order equation. We prove a general existence result for conformal harmonic maps, analogous to the Eells-Sampson theorem for harmonic maps. The proof uses a geometric flow and relies on results of Gursky-Viaclovsky and Lamm.
Spin conservation in high-order-harmonic generation using bicircular fields
Creators: name: Pisanty, Emilio
name: Ivanov, Misha
name: Sukiasyan, Suren
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an alternative theoretical model for a recent experiment [A.Fleischer et al., Nature Photon. 8, 543 (2014)] which used bichromatic, counter-rotating high intensity laser pulses to probe the conservation of spin angular momentum in high harmonic generation. We separate elliptical polarizations into independent circular fields with definite angular momentum, instead of using the expectation value of spin for each photon in the conservation equation, and we find good agreement with the experimental results. In our description the generation of each individual harmonic conserves spin angular momentum, in contrast to the model proposed by Fleischer et al. Our model also correctly describes analogous processes in standard perturbative optics.
description: Final changes from published version. Updated license to CC-BY-NC-SA
Test of gas phase chemistry mechanisms for a LES model with online coupled chemistry
Creators: name: Renate Forkel, Basit Khan, Sabine Banzhaf, Emmanuele Russo, Farah Kanani-Sühring, Klaus Ketelsen, Mona Kurppa, Björn Maronga,
name: Matthias Mauder,
Publisher: name: Karlsruhe
Year: 2018
Subjects: Urban air Quality
PALM-4U
mechanism

description: To accurately simulate dispersion, chemical transformation and removal of air pollutants in the urban canopy layer, fine-scale turbulence-resolving simulations are required that can explicitly resolve building structures and street canyons. Large-Eddy Simulation (LES) models explicitly resolve the dominant scales of turbulence in the atmospheric boundary layer and therefore, have the potential to capture the turbulent motion within street canyons
as well as the observed short term fluctuations of pollutant concentrations. LES models including chemical transformation
of pollutants are so far barely applied for urban air quality studies. Within the joint project MOSAIK (Model-based city planning and application in climate change) a new urban microscale model including gas Phase chemistry and aerosols, PALM-4U, has been developed. The state-of-the-art LES model PALM (Maronga et al,
2015, Geosci. Model Dev., 8, doi:10.5194/gmd-8-2515-2015) is used as core model for PALM-4U. In order to obtain the necessary flexibility in the choice of the chemistry mechanisms the gas-phase chemistry was implemented using the Kinetic PreProcessor KPP. Due to the very high computational demands of an LES-based model, compromises are required with respect to the degree of detail of the gas-phase chemistry mechanisms. A number of chemical mechanisms with varying complexity and detail that ranges from a strongly reduced mechanism which includes only a simple O3-NO2-NO-VOC-HOx chemistry and a small number of products to large mechanisms which are typically used in regional air quality models were implemented into PALM-4U. The performance of different gas-phase chemistry schemes of different complexity within the LES model PALM-4U is tested and
compared.
Modelling infectious disease in threatened wildlife to inform conservation management
Creators: name: Smallwood, Thomas Robert Charles
Publisher: name: Imperial College London
Year: 2020

description: Infectious disease can pose a substantial threat to wildlife populations. While pathogens are generally not thought to drive population extinctions, several factors may increase the risks of pathogen-driven extinction. The African wild dog is an endangered species, living primarily in small populations, potentially making them sensitive to pathogen-driven extinction. African wild dogs are a highly social group-living species, meaning pathogens can spread quickly to entire packs. Rabies and canine distemper virus (CDV) pose particular threats to African wild dogs, each having been implicated in the extinction of important populations. The species' complex population dynamics means responses to pathogens are di cult to predict and are not adequately covered by existing population models. A demographic model can therefore be a useful tool for both understanding African wild dog populations and informing conservation. This thesis describes an individual-based model (IBM) of African wild dog population dynamics, and how it can be used to assess the probability of African wild dog populations persisting under di erent conservation management interventions. This IBM was extended to incorporate rabies epidemiology, including spillover from domestic dogs. The coupled African wild dog and domestic dog models show that, while African wild dogs may be protected effectively through vaccination, vaccinating the local domestic dog population is indicated to be a more effective strategy. The IBM was also used to assess the impact of CDV on African wild dog populations, incorporating the uncertainty surrounding CDV epidemiology. The model highlights important knowledge gaps which constrain assessment of the threat posed by CDV and the potential for managing this threat. This thesis demonstrates the value of combining modelling infectious disease with demographic models to inform conservation, in particular in addressing threats posed by rabies and CDV to African wild dog populations. These insights may also be useful in the context of other threatened wildlife host species.
Supplementary Material from Phylogenomic diversity of archigregarine apicomplexans
Creators: name: Lax, Gordon
name: Park, Eunji
name: Na, Ina
name: Jacko-Reynolds, Victoria
name: Kwong, Waldan K
name: House, Chloe S. E.
name: Trznadel, Morelia
name: Wakeman, Kevin
name: Leander, Brian
name: Keeling, Patrick J
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology

description: Suppl-Fig1-129gene_v1-2.pdf
Supplemental Tables from Helpers or halos: examining the evaluative mechanisms underlying selective prosociality
Creators: name: Dunfield, Kristen A.
name: Isler, Laina
name: Chang, Xiao Min
name: Terrizzi, Brandon
name: Beier, Jonathan
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified

description: This research examines the proximate evaluative mechanisms underlying prosocial partner choice-based reciprocity. Across four studies we presented 855 university undergraduates (online for course credit) and 76 4- to 6-year-olds (offline at a university laboratory) with vignettes describing prosocial, social and non-social characters, and asked participants about their person preferences in prosocial, social and general contexts. Adults demonstrated sophisticated appraisals, coordinating between relevant trait and contextual cues to make selections. Adults were particularly attentive to prosocial cues in costly conditions, suggesting that they were using dispositional attributions to make their selections. By contrast, children were largely unable to integrate trait and contextual cues in determining their partner preferences, instead displaying valenced preferences for non-social cues, suggesting the use of affective tagging. Together, these studies demonstrate that the mechanisms underlying prosocial, partner choice-based reciprocity are not early emerging and stable but show considerable development over the lifespan.
Two-loop QCD corrections to $\mathrm{b + \bar{b} \rightarrow H+H}$ amplitude
Creators: name: H, Ajjath A.
name: Banerjee, Pulak
name: Chakraborty, Amlan
name: Dhani, Prasanna K.
name: Mukherjee, Pooja
name: Rana, Narayan
name: Ravindran, V.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2018
Subjects: quantum chromodynamics: correction
quantum chromodynamics: massless
Higgs particle: coupling
flavor: 5
higher-order: 2
CERN LHC Coll
bottom anti-bottom --> Higgs particle Higgs particle
numerical calculations
Higgs particle: pair production

description: We present the first results on the two-loop massless QCD corrections to the four-point amplitude $b+\overline{b} \rightarrow H+H$ in the five flavour scheme, treating bottom quarks as massless. This amplitude is sensitive to the trilinear Higgs boson coupling. Our two-loop result for this amplitude constitutes of purely virtual contributions to the next-to-next-to-leading order QCD predictions for the production of a pair of Higgs bosons at the Large Hadron Collider. We have implemented our two-loop results in a numerical code that can be used for further studies.
On a class of quantum channels, open random walks and recurrence
Creators: name: Lardizabal, Carlos F.
name: Souza, Rafael R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study a particular class of trace-preserving completely positive maps, called PQ-channels, for which classical and quantum evolutions are isolated in a certain sense. By combining open quantum random walks with a notion of recurrence, we are able to describe criteria for recurrence of the walk related to this class of channels. Positive recurrence for open walks is also discussed in this context.
description: 18 pages, revised version
Supplementary Material from Phylogenomic diversity of archigregarine apicomplexans
Creators: name: Lax, Gordon
name: Park, Eunji
name: Na, Ina
name: Jacko-Reynolds, Victoria
name: Kwong, Waldan K
name: House, Chloe S. E.
name: Trznadel, Morelia
name: Wakeman, Kevin
name: Leander, Brian
name: Keeling, Patrick J
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology

description: Suppl-Fig3_SR4-recode_v1-2.pdf
Archaehieraxinae, subfam. nov
Creators: name: Mather, Ellen K.
name: Lee, Michael S. Y.
name: Camens, Aaron B.
name: Worthy, Trevor H.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Accipitriformes
Accipitridae

description: Subfamily: Archaehieraxinae subfam. nov. Type genus: Archaehierax gen. nov. Remarks The fossil is identified as an accipitrid due to the following combination of characters: Skull – Rostrum deep and narrow, with hooked tip and a large, broad nasal aperture; Tibiotarsus – Pons supratendineus ossified, aligned steeply transversely, medially placed, with unbranched canalis tendinosus, and distal condyles much wider than craniocaudally deep; Tarsometatarsus – Robust, with monosulcate hypotarsus, the lateral and medial hypotarsal crests widely separated and trochleae metatarsorum splayed both medially and laterally, and dorsally arched in distal view; Foot – Four digits with raptorial unguals, those of digits 1 and 2 relatively large; Digit IV – phalanges 2 and 3 are very short compared to phalanx 4. Thefossilcanbeexcludedfrom Falconiformes (Falconidae) and the other families of Accipitriformes (Cathartidae, Sagittariidae, Pandionidae) by the morphology of the tarsometatarsal hypotarsus cristae and sulcus. The cristae are fused or partially fused together to enclose thesulcus in Cathartidae, Sagittariidae, and Pandionidae, while in Falconidae the medial crista isconnected to the shaft by a ridge that extends two-thirds of its length, features that are absent in the fossil. Diagnosis Accipitrids in which the following autapomorphic features are found: the pila medialis of the sternum dorsally separates two deep pneumatic fossae, the humerus has the caput humeri only slightly elevated proximally past the tuberculum ventralis, the tip of the processus procoracoideus of the coracoid sharply curves inwards ventrally towards the medial face of the bone, the tibiotarsus has the lateral/distal retinaculum scar in a deep fossa, the tarsometatarsus is relatively elongate with narrow trochleae metatarsorum that are separated by wide incisurae, and the incisura for the m. flexor hallucis brevis tendon is large, distinct, and extends distal to the fossa metatarsi I. In addition to this, the following features occur: the rostral tip of the rostrum is hooked below the tomial margin at a relatively shallow 30–40° angle, the quadrate has a deep, distinct foramen pneumaticum caudomediale, and the sternum has the apex carinae displaced caudally from the base of the spina externa.,
description: Published as part of Mather, Ellen K., Lee, Michael S. Y., Camens, Aaron B. & Worthy, Trevor H., 2021, An exceptional partial skeleton of a new basal raptor (Aves: Accipitridae) from the late Oligocene Namba formation, South Australia, pp. 1175-1207 in Historical Biology 34 (7) on page 6, DOI: 10.1080/08912963.2021.1966777, http://zenodo.org/record/5534487
Visualisations of coherent centre domains in local Polyakov loops
Creators: name: Stokes, Finn M.
name: Kamleh, Waseem
name: Leinweber, Derek B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Quantum Chromodynamics exhibits a hadronic confined phase at low to moderate temperatures and, at a critical temperature $T_C$, undergoes a transition to a deconfined phase known as the quark-gluon plasma. The nature of this deconfinement phase transition is probed through visualizations of the Polyakov loop, a gauge independent order parameter. We produce visualizations that provide novel insights into the structure and evolution of center clusters. Using the HMC algorithm the percolation during the deconfinement transition is observed. Using 3D rendering of the phase and magnitude of the Polyakov loop, the fractal structure and correlations are examined. The evolution of the center clusters as the gauge fields thermalize from below the critical temperature to above it are also exposed. We observe deconfinement proceeding through a competition for the dominance of a particular center phase. We use stout-link smearing to remove small-scale noise in order to observe the large-scale evolution of the center clusters. A correlation between the magnitude of the Polyakov loop and the proximity of its phase to one of the center phases of SU(3) is evident in the visualizations.
description: 28 pages, 21 figures
Supplementary Material from Phylogenomic diversity of archigregarine apicomplexans
Creators: name: Lax, Gordon
name: Park, Eunji
name: Na, Ina
name: Jacko-Reynolds, Victoria
name: Kwong, Waldan K
name: House, Chloe S. E.
name: Trznadel, Morelia
name: Wakeman, Kevin
name: Leander, Brian
name: Keeling, Patrick J
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology

description: Suppl-Fig6_HSR_v1.pdf
The evolution of particulates across the sooting limit in turbulent premixed opposed jet flames
Creators: name: Shariatmadar, Seyedhamed
Publisher: name: Imperial College London
Year: 2020

description: Soot formation in combustors is a complex process comprising highly intermittent interactions between physical and chemical processes across a wide range of time-scales. The influence of turbulence on the molecular pathways initiating particulate formation remains unquantified. Controlling soot emissions to the atmosphere will require overcoming large gaps in the understanding of soot formation/oxidation especially in turbulent combustion. The complexities of soot formation in turbulent flames suggests that the use of a flexible compact burner configuration with well–defined boundary conditions and precise control of flow characteristics is of significant advantage. The novel back–to–burnt opposed jet configuration features fractal grid generated turbulence and provides accurate control of flow parameters. The study includes the analyses of the overall flame structure of turbulent premixed ethylene/air flames, the relative concentrations of PAHs associated with soot inception and particle size distributions. The experiments covered a series of sooting flame conditions with variations in the equivalence ratio (1.7 ≤ \phi_{UN} ≤ 2.2), the total rate of strain (255 ≤ a_{T} [s−1] ≤ 610) and burnt gas temperature (1400 ≤ T_{LN} [K] ≤ 1700). The conditions traverse the soot inception limit, e.g. the transition from lightly to heavily sooting flames, with non- intrusive ELS and PAH–PLIF combined probe sampling to quantify gaseous and PAH species using GC–TCD and GC–MS, respectively. The probe sampling features comprehensive sampling steps used to provide accurate concentrations of major gaseous, PAH species and particles with minimum losses. It is shown that the rate of strain exerts a substantial influence on both PAH concentrations and soot formation. Hence, it is likely that soot formation in turbulent flames becomes dominated by contributions from low strain regions. It is also found that the stoichiometry of the mixture controls the concentrations of PAHs associated with soot inception. The results obtained clearly show that benzo(a)pyrene is prevalent in flame structures and that relatively large amounts are condensed onto soot particles. A transition between bimodal and unimodal shapes of the particle size distributions shows strong competitions between oxidation, aggregation and surface growth processes in the turbulent flames.
Least-Order Torsion-Gravity for Dirac Fields, and their Non-Linearity terms
Creators: name: Fabbri, Luca
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We will consider the most general least-order torsional completion of gravity with electrodynamics for the Dirac matter fields, and we study the effects that the torsion-spin coupling will have in inducing self-interactions among the fermion fields themselves; we will see that such self-interactions of fermions have effects analogous to those of the field-quantization prescription, and we will study the way in which they can give rise to matter distributions that are localized in a compact region and stable under the influence of perturbations.
description: 12 pages. arXiv admin note: text overlap with arXiv:1401.7069
Analysis of Schwarz methods for a hybridizable discontinuous Galerkin discretization
Creators: name: Gander, Martin J.
name: Hajian, Soheil
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N22, 65F10, 65F08, 65N55, 65H10

description: Schwarz methods are attractive parallel solvers for large scale linear systems obtained when partial differential equations are discretized. For hybridizable discontinuous Galerkin (HDG) methods, this is a relatively new field of research, because HDG methods impose continuity across elements using a Robin condition, while classical Schwarz solvers use Dirichlet transmission conditions. Robin conditions are used in optimized Schwarz methods to get faster convergence compared to classical Schwarz methods, and this even without overlap, when the Robin parameter is well chosen. We present in this paper a rigorous convergence analysis of Schwarz methods for the concrete case of hybridizable interior penalty (IPH) method. We show that the penalization parameter needed for convergence of IPH leads to slow convergence of the classical additive Schwarz method, and propose a modified solver which leads to much faster convergence. Our analysis is entirely at the discrete level, and thus holds for arbitrary interfaces between two subdomains. We then generalize the method to the case of many subdomains, including cross points, and obtain a new class of preconditioners for Krylov subspace methods which exhibit better convergence properties than the classical additive Schwarz preconditioner. We illustrate our results with numerical experiments.
description: 25 pages, 5 figures, 3 tables, accepted for publication in SINUM
Archaehierax Mather, Lee, Camens and Worthy, gen. nov.
Creators: name: Mather, Ellen K.
name: Lee, Michael S. Y.
name: Camens, Aaron B.
name: Worthy, Trevor H.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Falconiformes
Falconidae
Archaehierax

description: Genus Archaehierax Mather, Lee, Camens and Worthygen. nov. Type species: Archaehierax sylvestris sp. nov. http://zoobank.org/urn:lsid:zoobank.org:act: 8C4B01F2-12CE-46F4-A444-C63B18C90BAE Etymology Archaehierax is derived from the Greek words ‘archaios’, meaning ancient, and ‘hierax’, meaning hawk. Gender masculine. Diagnosis An accipitrid distinguished by the combination of the following features; Rostrum. (1) The nares are large and fully open, (2) processus maxillopalatini not fused; Quadrate. (3) the condylus pterygoideus projects less medially than the condylus medialis, (4) a deep, distinct fossa caudomedialis with a small amount of pneumatism; Sternum. (5) The apex carinae is displaced caudally from the base of the spina externa, (6) the medial crista on the carina does not extend to the spina externa; (7) The pila medialis on the dorsal face separates two deep fossae (autapomorphy); Humerus. (8) The caput humeri is only slightly elevated proximally past the tuberculum ventralis (autapomorphy); Os carpale ulnare. (9) Deepened depression on ulnaris face; Tarsometatarsus. (10) The trochleae metatarsorum are splayed and separated by wide incisurae, especially laterally, with the individual trochleae themselves quite narrow in width (autapomorphy); (11) The incisura for the m. flexor hallucis brevis tendon is large, distinct, and extends distal to the fossa metatarsi I (autapomorphy); Phalanx IV.4. (12) The distal articular end that articulates with phalanx IV.5, is considerably wider than the shaft. Type Locality/Stratigraphy/Age 31° 07.499 ʹ S; 140° 12.755 ʹ E. Site 12a, Lake Pinpa, Frome Downs Station, Callabonna Sub-Basin, S.A. Dolomite bed of Namba Formation, Pinpa LF, late Oligocene, 26–24 Ma.
description: Published as part of Mather, Ellen K., Lee, Michael S. Y., Camens, Aaron B. & Worthy, Trevor H., 2021, An exceptional partial skeleton of a new basal raptor (Aves: Accipitridae) from the late Oligocene Namba formation, South Australia, pp. 1175-1207 in Historical Biology 34 (7) on pages 6-7, DOI: 10.1080/08912963.2021.1966777, http://zenodo.org/record/5534487
Faint Submillimeter Galaxies Revealed by Multifield Deep ALMA Observations: Number Counts, Spatial Clustering, and A Dark Submillimeter Line Emitter
Creators: name: Ono, Yoshiaki
name: Ouchi, Masami
name: Kurono, Yasutaka
name: Momose, Rieko
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the statistics of faint submillimeter/millimeter galaxies (SMGs) and serendipitous detections of a submillimeter/millimeter line emitter (SLE) with no multi-wavelength continuum counterpart revealed by the deep ALMA observations. We identify faint SMGs with flux densities of 0.1-1.0 mJy in the deep Band 6 and Band 7 maps of 10 independent fields that reduce cosmic variance effects. The differential number counts at 1.2 mm are found to increase with decreasing flux density down to 0.1 mJy. Our number counts indicate that the faint (0.1-1.0 mJy, or SFR_IR ~ 30-300 Msun/yr) SMGs contribute nearly a half of the extragalactic background light (EBL), while the remaining half of the EBL is mostly contributed by very faint sources with flux densities of <0.1 mJy (SFR_IR 1 mJy) SMGs, but consistent with abundant high-z star-forming populations such as sBzKs, LBGs, and LAEs. Finally, we report the serendipitous detection of SLE-1 with continuum counterparts neither in our 1.2 mm-band nor multi-wavelength images including ultra deep HST/WFC3 and Spitzer data. The SLE has a significant line at 249.9 GHz with a signal-to-noise ratio of 7.1. If the SLE is not a spurious source made by unknown systematic noise of ALMA, the strong upper limits of our multi-wavelength data suggest that the SLE would be a faint galaxy at z >~ 6.
description: 20 pages, 16 figures, accepted for publication in ApJ
Fortschritt in der Strahlentherapie: Dynamische Keilfilter bringen bedeutende Arbeitserleichterung im Bestrahlungsablauf
Creators: name: Treutwein, Marius
Publisher: name: Universität Regensburg
Year: 2001
Subjects: subject: Dynamische Keilfilter, Strahlentherapie
subject: 600 Technik
subject: 610 Medizin

description: Moderne Linearbeschleuniger bieten die Möglichkeit, die Dosisverteilung statt mit mechanischem Keilfilter mit programmgesteuerter Blendenbewegung zu modulieren. Klinische Anwenungsbeispiele werden vorgestellt. Vorteile (leichtere Handhabung, größere Variabilität des Isodosenneigungswinkels, geringere Streustrahlendosis) und Nachteile (Höherer Messaufwand bei Inbetriebnahme und Konstanzprüfung, fehlende visuelle Kontrolle) werden diskutiert.
Supplementary Material from Phylogenomic diversity of archigregarine apicomplexans
Creators: name: Lax, Gordon
name: Park, Eunji
name: Na, Ina
name: Jacko-Reynolds, Victoria
name: Kwong, Waldan K
name: House, Chloe S. E.
name: Trznadel, Morelia
name: Wakeman, Kevin
name: Leander, Brian
name: Keeling, Patrick J
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology

description: Suppl-Fig2-22gene_v1-2.pdf
Exact equalities and thermodynamic relations for nonequilibrium steady states
Creators: name: Komatsu, Teruhisa S.
name: Nakagawa, Naoko
name: Sasa, Shin-ichi
name: Tasaki, Hal
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study thermodynamic operations which bring a nonequilibrium steady state (NESS) to another NESS in physical systems under nonequilibrium conditions. We model the system by a suitable Markov jump process, and treat thermodynamic operations as protocols according to which the external agent varies parameters of the Markov process. Then we prove, among other relations, a NESS version of the Jarzynski equality and the extended Clausius relation. The latter can be a starting point of thermodynamics for NESS. We also find that the corresponding nonequilibrium entropy has a microscopic representation in terms of symmetrized Shannon entropy in systems where the microscopic description of states involves "momenta". All the results in the present paper are mathematically rigorous.
description: 58 pages, 8 figures; many small improvements have been made in version 2
A systematic study of Brain Tissue microstructure: from composition to biomechanics and modelling of White Matter
Creators: name: Bernardini, Andrea
Publisher: name: Imperial College London
Year: 2020

description: This thesis aims to shed light on the biomechanical knowledge of the brain, in particular of its white matter (WM). An extensive, multidisciplinary and bottom-up research has been carried out to understand its micromechanical response focusing on three areas: Corpus Callosum, Corona Radiata and Fornix. Axons and the surrounding matrix with its accessory cells, the two main components of the tissue, have been analysed via Focused Ion Beam Scanning Electron Microscopy (FIB-SEM). Tissue volumes have been sampled, stained, embedded and imaged to finally be 3D-reconstructed, appearing as unidirectional composite materials. They have been geometrically characterised, creating a location-specific database of: cross-sectional area, diameter, ellipticity and tortuosity of the axons, together with the volume fraction of the volumes. The AFM-enabled nanoindentations investigated the mechanical response of WM. Stress-relaxation experiments have been performed on samples with axons running either parallel or perpendicular to the testing plane. The tissue showed linear viscoelasticity and slight anisotropy at the investigated level. The perpendicular samples showed a higher initial stiffness than parallel samples while the relative change in stiffness after relaxation was higher for the parallel samples than for the perpendicular ones. Finally, micromechanical modelling of the areas was performed. Location-speci c Representative Volume Elements have been created with the geometrical info obtained via FIB-SEM. Via an inverse-modelling approach, using the AFM data, material parameters of the axons and the matrix, the tissue components, have been obtained. The predicted stress-relaxation curves simulated by the finite element analysis showed good agreement with the experimental curves. The acquired knowledge of the microenvironment is fundamental for a comprehensive microscopical characterisation of the white matter. It provides important information to reduce axonal damage during neurosurgery, by predicting the local mechanical response and planning accordingly, and to improve the efficacy and therapeutic reach of Convection Enhanced Delivery, by exploiting the cytoarchitecture, leading to minimal side effects and maximal efficacy of the treatments.
Computational modelling of diffusion magnetic resonance imaging based on cardiac histology
Creators: name: Rose, Jan Niklas
Publisher: name: Imperial College London
Year: 2021

description: The exact relationship between changes in myocardial microstructure as a result of heart disease and the signal measured using diffusion tensor cardiovascular magnetic resonance (DT-CMR) is currently not well understood. Computational modelling of diffusion in combination with realistic numerical phantoms offers the unique opportunity to study effects of pathologies or the efficacy of improvements to acquisition protocols in a controlled in-silico environment. In this work, Monte Carlo random walk (MCRW) methods are used to simulate diffusion in a histology-based 3D model of the myocardium. Sensitivity of typical DT-CMR sequences to changes in tissue properties is assessed. First, myocardial tissue is analysed to identify important geometric features and diffusion parameters. A two-compartment model is considered where intra-cellular compartments with a reduced bulk diffusion coefficient are separated from extra-cellular space by permeable membranes. Secondary structures like groups of cardiomyocyte (sheetlets) must also be included, and different methods are developed to automatically generate realistic histology-based substrates. Next, in-silico simulation of DT-CMR is reviewed and a tool to generate idealised versions of common pulse sequences is discussed. An efficient GPU-based numerical scheme for obtaining a continuum solution to the Bloch--Torrey equations is presented and applied to domains directly extracted from histology images. In order to verify the numerical methods used throughout this work, an analytical solution to the diffusion equation in 1D is described. It relies on spectral analysis of the diffusion operator and requires that all roots of a complex transcendental equation are found. To facilitate a fast and reliable solution, a novel root finding algorithm based on Chebyshev polynomial interpolation is proposed. To simulate realistic 3D geometries MCRW methods are employed. A parallel simulator for both grid-based and surface mesh--based geometries is presented. The presence of permeable membranes requires special treatment. For this, a commonly used transit model is analysed. Finally, the methods above are applied to study the effect of various model and sequence parameters on DT-CMR results. Simulations with impermeable membranes reveal sequence-specific sensitivity to extra-cellular volume fraction and diffusion coefficients. By including membrane permeability, DT-CMR results further approach values expected in vivo.
Effects of topological constraints on globular polymers
Creators: name: Imakaev, Maxim
name: Tchourine, Konstantin
name: Nechaev, Sergei
name: Mirny, Leonid
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Topological constraints can affect both equilibrium and dynamic properties of polymer systems, and can play a role in the organization of chromosomes. Despite many theoretical studies, the effects of topological constraints on the equilibrium state of a single compact polymer have not been systematically studied. Here we use simulations to address this longstanding problem. We find that sufficiently long unknotted polymers differ from knotted ones in the spatial and topological states of their subchains. The unknotted globule has subchains that are mostly unknotted and form asymptotically compact $R_G(s) \sim s^{1/3}$ crumples. However, crumples display high fractal dimension of the surface $d_b = 2.8$, forming excessive contacts and interpenetrating each other. We conclude that this topologically constrained equilibrium state resembles a conjectured crumpled globule [Grosberg et al., Journal de Physique, 1988, 49, 2095], but differs from its idealized hierarchy of self-similar, isolated and compact crumples.
Job satisfaction among college teachers: A study on senior colleges in pune city
Creators: name: ., MGMulla
Publisher: name: figshare
Year: 2023
Subjects: Workplace wellbeing and quality of working life
Occupational and workplace health and safety
Human resources management

description: Well-being of any society depends upon the role played by the teacher college. Teachers are the most important group of professionals for our nation's future. They are the source of guidance in all the crucial steps in academic life of students.
Seismic Waves
Creators: name: Seth, Indra Dayal
Publisher: name: Imperial College London
Year: 2022

description: The thesis consists of two parts. The first part deals with the historical development of the science of seismology and the application of the mathematical theory of elasticity to that subject. In the beginning m brief sketch of the method of determining the velocity of body waves at various depths inside the earth is given and the major discontinuities described. Features of seismic records are described together with their modification with the increase in epicentral distance. The general theories of the propagation of body waves in isotropic media and the two surface waves due to Rayleigh and Love are discussed with special reference to the heterogeneity of the earth and the phenomenon of dispersion. The second part deals with the generation of surface waves first with reference to the depth of focus of earthquakes and later on the possibilities of their generation under certain circumstances of the reflection and refraction of body waves has been dealt with at some length. In one case it has been found that at a free surface a plane wave of SV type, travelling parallel to the surface, la capable of generating surface waves which are identical with the Rayleigh waves under a certain state of attenuation.
Supplementary Material from Phylogenomic diversity of archigregarine apicomplexans
Creators: name: Lax, Gordon
name: Park, Eunji
name: Na, Ina
name: Jacko-Reynolds, Victoria
name: Kwong, Waldan K
name: House, Chloe S. E.
name: Trznadel, Morelia
name: Wakeman, Kevin
name: Leander, Brian
name: Keeling, Patrick J
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology

description: Supplementary Legends_v2.docx