cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Convection in Drying and Freezing Ground
Creators: name: Faizal, Mir
name: Peppin, Stephen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: In this paper we analyse the drying of a soil composed of particles, water and solute impurities, and study the occurrence of convective instabilities during evaporation. We find that the main driving force for instability is the formation of a concentration gradient at the soil surface due to the evaporation of water. A similar phenomenon may occur during the thawing of frozen ground in Arctic regions.
description: 12 pages, 0 figures
Internal Gravity Wave Excitation by Turbulent Convection
Creators: name: Lecoanet, Daniel
name: Quataert, Eliot
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We calculate the flux of internal gravity waves (IGWs) generated by turbulent convection in stars. We solve for the IGW eigenfunctions analytically near the radiative-convective interface in a local, Boussinesq, and cartesian domain. We consider both discontinuous and smooth transitions between the radiative and convective regions and derive Green's functions to solve for the IGWs in the radiative region. We find that if the radiative-convective transition is smooth, the IGW flux depends on the exact form of the buoyancy frequency near the interface. IGW excitation is most efficient for very smooth interfaces, which gives an upper bound on the IGW flux of ~ F_conv (d/H), where F_conv is the flux carried by the convective motions, d is the width of the transition region, and H is the pressure scale height. This can be much larger than the standard result in the literature for a discontinuous radiative-convective transition, which gives a wave flux ~ F_conv M$, where M is the convective Mach number. However, in the smooth transition case, the most efficiently excited perturbations will break in the radiative zone. The flux of IGWs which do not break and are able to propagate in the radiative region is at most F_conv M^(5/8) (d/H)^(3/8), larger than the discontinuous transition result by (MH/d)^(-3/8). The transition region in the Sun is smooth for the energy-bearing waves; as a result, we predict that the IGW flux is a few to five times larger than previous estimates. We discuss the implications of our results for several astrophysical applications, including IGW driven mass loss and the detectability of convectively excited IGWs in main sequence stars.
description: 14 pages, 3 figures, accepted to MNRAS
Understanding structure-property relationship of bulk hetero-junction polymer-fullerene blends
Creators: name: Matrone, Giovanni Maria
Publisher: name: Imperial College London
Year: 2019

description: Progress over the last few years designing new materials for organic bulk heterojunction (BHJ) solar cells has been enormous with efficiencies reaching more than 13%1 . However, a multitude of combinations exist on how to blend donors and acceptors, with a wide variety of processing options, rendering materials selection and testing an intricate task. Indeed, detailed fundamental understanding between phase behaviour and BHJ properties is still lacking, drastically limiting, among many things, device reproducibility and general progress in the field2 . Despite the apparently chaotic scenario, a simple pathway is here presented to predict BHJs microstructure and phase morphology in OPV using PCE11 (i.e. PffBT4T-2O) and poly(2,5-bis(3-tetradecyllth-iophen-2-yl) thieno[3,2,-b]thiophene) (i.e. pBTTT) :fullerene blends as model systems. We confirm that differential scanning calorimetry assist in establishing temperature/composition diagrams. These can be read as solidification road-maps to predict BHJ morphologies, by far analogy with metallurgy3,4. Coexistence of relatively phase-pure fullerene4 domains together with a finely intermixed phase has already been proved via several visualisation techniques and it is regarded as a requirement for high performances5,6 . Exploring a range polymer-to-fullerene combinations, different morphology scenarios have been targeted: complete phase separation, co-crystal and fullerene intercalation, disordered intermix. Thereby the investigative focus is on the role played by the intermixed phases, discerning between ordered and disordered ones. Indeed, considering the results on the prototypical P3HT blends and the presented pBTTT, the proposed approach is extended to the class of high-performance D-A polymers system, such as PCE11: PCBM ([6,6]-Phenyl-C61-butyric acid methyl ester). Undeniably phase diagrams may predict phase separation, though hereby an approach is offered to manipulate the length scale of each component-rich domain and the intermixed matrix surrounding it. In this frame the solidification processes are investigated via in-situ spectroscopy, in order to reveal the -HJ aggregates formation mechanisms. “Rebus sic stantibus”, this work offers a platform to disentangle effects of miscibility, processing and final device performance.
Thermodynamics and phase diagram of anisotropic Chern-Simons deformed gauge theories
Creators: name: Gynther, A.
name: Rebhan, A.
name: Steineder, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider 3+1-dimensional gauge theories at finite temperature and a finite density of charges which couple to a 2+1-dimensional Chern-Simons operator, giving rise to a theta-term with constant spatial gradient of theta. The strong-coupling limit of thermal N=4 super-Yang-Mills theory with this kind of anisotropic deformation has been used in the context of the AdS/CFT correspondence as a model for strongly coupled anisotropic quark-gluon plasma. In this paper we work out the thermodynamics and the (nontrivial) phase diagram in the limit of vanishing gauge coupling and compare with the corresponding strong-coupling results.
description: 23 pages, 7 figures, v2: low temperature expansion corrected, references added, some discussion expanded
Mol2 files libary for natural compounds - prominats candidats as an inhitotors for Receptor Binding Domein in Spike proten
Creators: name: Nedyalkova, Miroslava
Publisher: name: Zenodo
Year: 2021
Subjects: mol2, ligands, Flavonoids, Saponins, Alkaloids, Terpenes, Triterpenes, drug-like features.

description: The presented mol2 files are based on a literature search for the prominent natural compounds that can be used and tested as inhibitors towards the RBD region from Spike protein. The listed structural files for 135 natural compounds are members of the following Classe: Flavonoids, Saponins, Alkaloids, Terpenes, and Triterpenes with drug-like features. The knowledge about the applicability of natural products as a unique source for developing new candidates towards deadly infectious diseases is a contemporary challenge for drug discovery. The listed files can be used as a ligand in a docking study or other type to in silico simulation according to the users' interest.
Differentiable mappings on products with different degrees of differentiability in the two factors
Creators: name: Alzaareer, Hamza
name: Schmeding, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 26E15 (Primary) 26E20, 46E25, 34A12, 22E65, 46T20 (Secondary)

description: We develop differential calculus of $C^{r,s}$-mappings on products of locally convex spaces and prove exponential laws for such mappings. As an application, we consider differential equations in Banach spaces depending on a parameter in a locally convex space. Under suitable assumptions, the associated flows are mappings of class $C^{r,s}$.
description: 42 Pages, Latex, v2: Corrected several misprints and typos. The results remain unchanged
Three-form inflation and non-Gaussianity
Creators: name: Mulryne, David J.
name: Noller, Johannes
name: Nunes, Nelson J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We calculate the perturbed action, at second and third order, for a massive three-form field minimally coupled to gravity, and use it to explore the observational predictions of three-form inflation. One intriguing result is that the value of the spectral index is nearly independent of the three-form potential, being fixed solely by the number of e-folds of inflation, with n_s=0.97 for the canonical number of 60. Considering the bispectrum, we employ standard techniques to give explicit results for two models, one of which produces a large non-Gaussianity. Finally, we confirm our results by employing a duality relating the three-form theory to a non-canonical scalar field theory and explicitly re-computing results in this dual picture.
description: 23 pages, 6 figures. Typos corrected and addition of one appendix. Accepted in JCAP
Renormalization effects in interacting quantum dots coupled to superconducting leads
Creators: name: Futterer, David
name: Swiebodzinski, Jacek
name: Governale, Michele
name: König, Jürgen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study subgap transport through an interacting quantum dot tunnel coupled to one normal and two superconducting leads. To check the reliability of an approximation of an infinitely-large gap $Δ$ in the superconducting leads and weak tunnel coupling to the normal lead, we perform a $1/Δ$ expansion, and we analyze next-to-leading order corrections in the tunnel coupling to the normal lead. Furthermore, we propose a resummation approach to calculate the Andreev bound states for finite $Δ$. The results are substantially more accurate than those obtained by mean-field treatments and favorably compare with numerical exact results.
description: 11 pages, 10 figures
Thermally Induced Clamping Force Deviations in a Sensory Chuck for Thin-Walled Workpieces
Creators: name: Denkena, Berend
name: Klemme, Heinrich
name: Wnendt, Eike
name: Meier, Matthias
Publisher: name: Cham : Springer International Publishing
Year: 2023
Subjects: subject: Clamping force
subject: Power chucks
subject: Sensory machine components
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Deviations between nominal and actual tolerances are a challenging problem during turning processes of thin-walled workpieces. One main cause of these deviations is the clamping force applied by the turning chuck to hold the workpiece. Due to the low stiffness of thin-walled workpieces, large workpiece deformations can occur even when clamping forces are low. For this reason, the clamping force needs to be precisely adjusted. A possible approach are chucks with integrated actuators. As a result of the more direct power transmission, these chucks have a potentially higher clamping force accuracy compared to conventional external actuation. However, integrated actuators are additional heart sources resulting in thermal loads and thermally induced deformations of the chuck components. Due to the resulting mechanical distortion of the chuck system, the precise adjustment of clamping forces is not possible. Thus, this paper evaluates the thermally induced clamping force deviations on a novel turning chuck with four integrated electric drives. A test bench is used to analyse both a single drive and the combination of all four drives regarding the temperature effect on the clamping force adjustability. A clamping force deviation of up to 26% is observed. Based on the measured chuck temperature, a compensation method is introduced leading to a clamping force accuracy of 96.9%.
Titel
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 35 (2003): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Reading in Uncertain Times: Shared Reading for Eudaimonic Wellbeing
Creators: name: Roemhild, Juliane
name: Turner, Melinda
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 4701
subject: Communication and media studies
classificationCode: 3605
subject: Screen and digital media
classificationCode: 4702
subject: Cultural studies

description: We are living in uncertain times. Recent and ongoing crises, such as the COVID-19 pandemic, climate change and natural disasters, and increasing geopolitical and economic instability, have arguably led to a growing awareness of our existential precarity. Recent studies suggest that mental health is poor: among the general population, 24.4% experience anxiety and 22.9% suffer from symptoms of depression. These figures rise to an alarming 41.1% and 32.5% respectively in vulnerable populations (Bower et al.). As Maree Teesson, Director of the University of Sydney’s Matilda Centre for Research in Mental Health and Substance Use, points out, “what worries me is that rather than having an intense recovery phase [after the pandemic] in Australia we’ve had further crises, including marked increases in costs of living and natural disasters, all of which we know exacerbate mental health problems” (anon.).
U(1) symmetries in F-theory GUTs with multiple sections
Creators: name: Mayrhofer, Christoph
name: Palti, Eran
name: Weigand, Timo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a systematic construction of F-theory compactifications with Abelian gauge symmetries in addition to a non-Abelian gauge group G. The formalism is generally applicable to models in global Tate form but we focus on the phenomenologically interesting case of G=SU(5). The Abelian gauge factors arise due to extra global sections resulting from a specific factorisation of the Tate polynomial which describes the elliptic fibration. These constructions, which accommodate up to four different U(1) factors, are worked out in detail for the two possible embeddings of a single U(1) factor into E8, usually denoted SU(5) x U(1)_X and SU(5) x U(1)_PQ. The resolved models can be understood either patchwise via a small resolution or in terms of a P_{1,1,2}[4] description of the elliptic fibration. We derive the U(1) charges of the fields from the geometry, construct the U(1) gauge fluxes and exemplify the structure of the Yukawa interaction points. A particularly interesting result is that the global SU(5) x U(1)_PQ model exhibits extra SU(5)-singlet states which are incompatible with a single global decomposition of the 248 of E8. The states in turn lead to new Yukawa type couplings which have not been considered in local model building.
description: 46 pages, 3 figures; v2 typos corrected, citations added
Superconductivity of doped Weyl semimetals: finite-momentum pairing and electronic analogues of the 3He-A phase
Creators: name: Cho, Gil Young
name: Bardarson, Jens H.
name: Lu, Yuan-Ming
name: Moore, Joel E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study superconducting states of doped inversion-symmetric Weyl semimetals. Specifically, we consider a lattice model realizing a Weyl semimetal with an inversion symmetry and study the superconducting instability in the presence of a short-ranged attractive interaction. With a phonon-mediated attractive interaction, we find two competing states: a fully gapped finite-momentum (FFLO) pairing state and a nodal even-parity pairing state. We show that, in a BCS-type approximation, the finite-momentum pairing state is energetically favored over the usual even-parity paired state and is robust against weak disorder. Though energetically unfavorable, the even-parity pairing state provides an electronic analogue of the 3He-A phase in that the nodes of the even-parity state carry non-trivial winding numbers and therefore support a surface flat band. We briefly discuss other possible superconducting states that may be realized in Weyl semimetals.
description: 9 pages, 2 tables, 2 figures. references are updated and the discussion on the half-qauntum and full-quantum vortices is added
Self-Dual Soliton Solution in a Generalized Jackiw-Pi Model
Creators: name: Sourrouille, Lucas
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a generalization of Jackiw-Pi model by introducing a nonstandard kinetic term. We present a Bogomolnyi framework for this theory and as a particular case we show that the Bogomolnyi equations of Chern-Simons Higgs theory can be obtained. Finally, the dimensionally reduced theory is analyzed and novel solitonic equations emerge.
description: 11 pages, additional comments and references
Bohr Density of Simple Linear Group Orbits
Creators: name: Howe, Roger
name: Ziegler, Francois
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 22D40 (Primary) 22E46, 43A60, 57S20 (Secondary)

description: We show that any nonzero orbit under a noncompact, simple, irreducible linear group is dense in the Bohr compactification of the ambient space.
description: 5 Pages. Final preprint version, to appear in Ergodic Theory and Dynamical Systems
AVTVMNVS : Römische Herbstpersonifikationen aus Trier
Creators: name: Faust, Sabine
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 38 (2006): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
The Lives of the Ninth-Century Popes (Liber Pontificalis). The Ancient Biographies of Ten Popes from A.D. 817–891. Translated with an introduction and commentary by R. Davis, 1995
Creators: name: Bougard, F.
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 26 Nr. 1 (1999)
The Effective Field Theory of Dark Matter and Structure Formation: Semi-Analytical Results
Creators: name: Hertzberg, Mark P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Complimenting recent work on the effective field theory of cosmological large scale structures, here we present detailed approximate analytical results and further pedagogical understanding of the method. We start from the collisionless Boltzmann equation and integrate out short modes of a dark matter/dark energy dominated universe (LambdaCDM) whose matter is comprised of massive particles as used in cosmological simulations. This establishes a long distance effective fluid, valid for length scales larger than the non-linear scale ~ 10 Mpc, and provides the complete description of large scale structure formation. Extracting the time dependence, we derive recursion relations that encode the perturbative solution. This is exact for the matter dominated era and quite accurate in LambdaCDM also. The effective fluid is characterized by physical parameters, including sound speed and viscosity. These two fluid parameters play a degenerate role with each other and lead to a relative correction from standard perturbation theory of the form ~ 10^{-6}c^2k^2/H^2. Starting from the linear theory, we calculate corrections to cosmological observables, such as the baryon-acoustic-oscillation peak, which we compute semi-analytically at one-loop order. Due to the non-zero fluid parameters, the predictions of the effective field theory agree with observation much more accurately than standard perturbation theory and we explain why. We also discuss corrections from treating dark matter as interacting or wave-like and other issues.
description: v1: 51 pages, 8 figures; v2: 53 pages, 9 figures, several minor improvements, added references; v3: Updated to resemble version published in PRD
Supernovae and AGN driven galactic outflows
Creators: name: Sharma, Mahavir
name: Nath, Biman B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present analytical solutions for winds from galaxies with NFW dark matter halo. We consider winds driven by energy and mass injection from multiple supernovae, as well as momentum injection due to radiation from a central black hole. We find that the wind dynamics depends on three velocity scales: (a) v_star \sim (\dot{E} / 2 \dot{M})^{1/2} describes the effect of starburst activity, with \dot{E}, \dot{M} as energy and mass injection rate in a central region of radius R; (b) \vbh ~ (G\mbh / 2 R)^{1/2} for the effect of a central black hole of mass \mbh on gas at distance R and (c) v_{s} =(GM_h/ 2Cr_s)^{1/2} which is closely related to the galaxy circular velocity, with C as a function of halo concentration parameter. We find the wind terminal speed to be 2 (v_star^2 +1.5(Γ-1) \vbh^2 -v_s^2)^{1/2}, where Γis the ratio of force due to radiation pressure to gravity of the central black hole. We also find that: (a) winds from quiescent star forming galaxies cannot escape from 10^{11.5} \le M_h \le 10^{12.5}Msun galaxies, (b) circumgalactic gas at large distances should be present for galaxies in this mass range, (c) for an escaping wind, the wind speed in low to intermediate mass galaxies is ~ 400--1000 km/s, consistent with observed X-ray temperatures; (d) winds from massive galaxies with AGN have speeds \gtrsim 1000 km/s. We also find that the ratio [2 v_star ^2 -(1 -Γ) \vbh^2]/ v_c^2 dictates the amount of gas lost. Used in conjunction with an appropriate relation between \mbh and M_h, and an appropriate opacity of dust grains in IR (K band), this ratio becomes minimum at a certain halo mass scale (M_h ~ 10^{12--12.5} Msun) that signifies the cross-over of AGN domination in outflow properties from starburst activity at lower masses. We find that stellar mass for massive galaxies scales as M_star \propto M_h^{0.26},and for low mass galaxies, M_star \propto M_h^{5/3}.
description: 20 pages, 6 figures, Accepted in ApJ, Comments Welcome
title: Επαναπροσδιορίζοντας το δυναμικό του τεχνητού τοπίου : το παράδειγμα των εργατικών κατοικιών του Νέου Κόσμου
title: Redefining the potential of the man-made landscape: the case of social housing in Neos Cosmos, Athens
Creators: name: Κυριακη-Μπιτζαρου Αναστασια
Publisher: name: Technical University of Crete
Year: 2023

description: Μελετώντας την σύγχρονη δομή της Αθήνας, παρατηρείται η εκτενής κάλυψη της πόλης κυρίως από τα μέσα του 19ου αιώνα. Μέσω της ανάλυσης των συλλογικών κατοικιών στην Ελλάδα, διαπιστώνουμε τη σταθερότητα των δομών στο πέρασμα του χρόνου και εντοπίζουμε διαφορετικές τυπολογίες. Στη συγκεκριμένη μελέτη, έναντι της καθαίρεσης των εργατικών κατοικιών, που συνηθίζεται, προτείνεται η επανάχρηση, με βασική πρόθεση την λειτουργία της περιοχής αυτόνομα. Στόχος είναι η δημιουργία ενός συστήματος που παράγει ό,τι χρειάζεται για να τροφοδοτηθεί, διαχειρίζεται τα απόβλητα, επαναχρησιμοποιεί υλικά και σέβεται το φυσικό οικοσύστημα. Βασικό ρόλο διαχείρισης έχουν οι μόνιμοι κάτοικοι και συμπληρώνονται οι λειτουργίες από τους επισκέπτες. Απομονώνοντας τον σκελετό των κτιρίων και μελετώντας τα χαρακτηριστικά του, δημιουργείται μια νέα εργαλειοθήκη που αλλάζει τα υφιστάμενα κτίρια.
Στόχος είναι μετά την επέμβαση τα κτίρια να λειτουργούν με βάση τις σύγχρονες ανάγκες και σε επίπεδο πόλης να διαλυθεί το υφιστάμενο όριο, ώστε οι νέοι δημόσιοι χώροι να συνδεθούν με τα υφιστάμενα δίκτυα.
Índice Compuesto Coincidente de Actividad Económica para la provincia de Santa Fe (Argentina): Indicador mensual de alcance sub-nacional
Creators: name: Cohan, Pablo Pedro
name: D´Jorge, María Lucrecia
Publisher: name: XVIII Encuentro de Economía Aplicada (ALDE)
Year: 2025
Subjects: subject: (4-(m-Chlorophenylcarbamoyloxy)-2-butynyl)trimethylammonium Chloride/economics

description: El documento expone la metodología utilizada para calcular el Indicador Compuesto Coincidente Mensual de Actividad Económica de la Provincia de Santa Fe (ICASFe) y presenta los principales resultados obtenidos durante el período 1994-2014. Las fases expansivas y contractivas datadas se caracterizan desde un punto de vista clásico y considerando el enfoque de ciclos de crecimiento.
The n-level densities of low-lying zeros of quadratic Dirichlet L-functions
Creators: name: Levinson, Jake
name: Miller, Steven J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M26, 15B52 (primary), 11M50 (secondary)

description: Previous work by Rubinstein and Gao computed the n-level densities for families of quadratic Dirichlet L-functions for test functions where the sum of the supports of the Fourier transforms is at most 2, and showed agreement with random matrix theory predictions in this range for n < 4 but only in a restricted range for larger n. We extend these results and show agreement for n < 8, and reduce higher n to a Fourier transform identity. The proof involves adopting a new combinatorial perspective to convert all terms to a canonical form, which facilitates the comparison of the two sides.
description: Note: the paper ends with a reduction of the case of general n to a combinatorial Fourier transform identity; we welcome any correspondence on how to attack this remaining step. 33 pages, first draft
Infrared spectroscopy of diatomic molecules - a fractional calculus approach
Creators: name: Herrmann, Richard
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The eigenvalue spectrum of the fractional quantum harmonic oscillator is calculated numerically solving the fractional Schrödinger equation based on the Riemann and Caputo definition of a fractional derivative. The fractional approach allows a smooth transition between vibrational and rotational type spectra, which is shown to be an appropriate tool to analyze IR spectra of diatomic molecules.
description: revised + extended version, 9 pages, 6 figures
Zigzag chain structure transition and orbital fluctuations in Ni-based superconductors
Creators: name: Yamakawa, Youichi
name: Onari, Seiichiro
name: Kontani, Hiroshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the electronic state and structure transition of BaNi2As2, which shows a similar superconducting phase diagram as Fe-based superconductors. We construct the ten-orbital tight-binding model for BaNi2As2 by using the maximally localized Wannier function method. The Coulomb and quadrupole-quadrupole interactions are treated within the random-phase approximation. We obtain the strong developments of charge quadrupole susceptibilities driven by the in-plane and out-of-plane oscillations of Ni ions. The largest susceptibility is either O_{X^2-Y^2}-quadrupole susceptibility at q = (pi, 0, pi) or O_{XZ(YZ)}-quadrupole susceptibility at q = (pi, pi, pi), depending on the level splitting between d_{X^2-Y^2} and d_{XZ(YZ)}. These antiferro-quadrupole fluctuations would then be the origin of the strong coupling superconductivity in Ni-based superconductors. Also, we propose that the antiferro-quadrupole O_{X^2-Y^2} order with q = (pi, 0, pi) is the origin of the zigzag chain structure reported in experiments. We identify similarities and differences between Ni- and Fe-based superconductors.
description: 7 pages, 5 figures
Values, decision-making and empirical bioethics: a conceptual model for empirically identifying and analyzing value judgements
Creators: name: Mertz, Marcel
name: Prince, Ilvie
name: Pietschmann, Ines
Publisher: name: Dordrecht [u.a.] : Springer Science + Business Media B.V
Year: 2023
Subjects: subject: Animal research ethics
subject: Decision-making
subject: Empirical bioethics
subject: Ethical theory
subject: Value judgement
subject: Values
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: It can be assumed that value judgements, which are needed to judge what is ‘good’ or ‘better’ and what is ‘bad’ or ‘worse’, are involved in every decision-making process. The theoretical understanding and analysis of value judgements is, therefore, important in the context of bioethics, for example, to be able to ethically assess real decision-making processes in biomedical practice and make recommendations for improvements. However, real decision-making processes and the value judgements inherent in them must first be investigated empirically (‘empirical bioethics’). For this to succeed, what exactly a ‘value judgement’ is and of what components it might consist must initially be theoretically clarified. A corresponding conceptual model can then support or even enable empirical data collection and analysis and, above all, subsequent ethical analysis and evaluation. This paper, therefore, presents a value judgement model with its theoretical derivation. It also illustrates its application in an interview study of decision-making between animal experimentation and alternative methods in the context of biomedical research. Though the model itself can be theoretically deepened and extended, the application of the model works in general and helps to uncover what value judgements can enter into decision-making. However, the empirical methods, for example, qualitative interviews, can also be better oriented towards eliciting value judgements (as understood according to the model). Further applications of the model to other topics or by means of other empirical methods are conceivable.
Neutrino masses and proton decay in SO(10)
Creators: name: Abud, M.
name: Buccella, F.
name: Falcone, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the constraints on SO(10) unified models coming from the lower limits on proton lifetime and on the scale of B-L symmetry breaking within the framework of the seesaw model for neutrino masses. By upgrading a triangular relationship for the inverse of Majorana masses to the experimental situation with non maximal 2-3 mixing and non vanishing 1-3 mixing, we get for the sum of neutrino masses the upper limit 0.16 eV.
description: 11 pages, 10 figures. Corrected eqn (2) and revised, references added
U mobilization and associated U isotope fractionation by sulfur-oxidizing bacteria
Creators: name: Rosendahl, C.D.
name: Roebbert, Y.
name: Schippers, A.
name: Weyer, S.
Publisher: name: Lausanne : Frontiers Media
Year: 2023
Subjects: subject: Acidithiobacillus ferrooxidans
subject: isotope fractionation
subject: laboratory batch experiments
subject: remobilization
subject: Thiobacillus denitrificans
subject: uranium
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Uranium (U) contamination of the environment causes high risk to health, demanding for effective and sustainable remediation. Bioremediation via microbial reduction of soluble U(VI) is generating high fractions (>50%) of insoluble non-crystalline U(IV) which, however, might be remobilized by sulfur-oxidizing bacteria. In this study, the efficacy of Acidithiobacillus (At.) ferrooxidans and Thiobacillus (T.) denitrificans to mobilize non-crystalline U(IV) and associated U isotope fractionation were investigated. At. ferrooxidans mobilized between 74 and 91% U after 1 week, and U mobilization was observed for both, living and inactive cells. Contrary to previous observations, no mobilization by T. denitrificans could be observed. Uranium mobilization by At. ferrooxidans did not cause U isotope fractionation suggesting that U isotope ratio determination is unsuitable as a direct proxy for bacterial U remobilization. The similar mobilization capability of active and inactive At. ferrooxidans cells suggests that the mobilization is based on the reaction with the cell biomass. This study raises doubts about the long-term sustainability of in-situ bioremediation measures at U-contaminated sites, especially with regard to non-crystalline U(IV) being the main component of U bioremediation.
Space-Time Mixed System Formulation of Phase-Field Fracture Optimal Control Problems
Creators: name: Khimin, Denis
name: Steinbach, Marc Christian
name: Wick, Thomas
Publisher: name: Dordrecht [u.a.] : Springer Science + Business Media
Year: 2023
Subjects: subject: Mixed-in-time system
subject: Optimal control
subject: Penalization
subject: Phase-field fracture propagation
subject: Reduced optimization approach
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::000 | Informatik, Informationswissenschaft, allgemeine Werke

description: In this work, space-time formulations and Galerkin discretizations for phase-field fracture optimal control problems are considered. The fracture irreversibility constraint is formulated on the time-continuous level and is regularized by means of penalization. The optimization scheme is formulated in terms of the reduced approach and then solved with a Newton method. To this end, the state, adjoint, tangent, and adjoint Hessian equations are derived. The key focus is on the design of appropriate function spaces and the rigorous justification of all Fréchet derivatives that require fourth-order regularizations. Therein, a second-order time derivative on the phase-field variable appears, which is reformulated as a mixed first-order-in-time system. These derivations are carefully established for all four equations. Finally, the corresponding time-stepping schemes are derived by employing a dG(r) discretization in time.
Updated predictions for graviton and photon associated production at the LHC
Creators: name: Wang, Jian
name: Li, Chong Sheng
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present updated predictions on the inclusive total cross sections, including the complete next-to-leading order QCD corrections, for the graviton and photon associated production process in the large extra dimensions model at the LHC with a center-of-mass energy of 7 and 8 TeV, using the parameters according to the requirements of the ATLAS and CMS Collaborations. Moreover, we also discuss in detail the dependence on the transverse momentum cut and uncertainties due to the choices of scales and parton distribution functions.
description: 5 pages, 3 figures, 2 tables, version published in PRD
H. Nagel, Karl der Große und die theologischen Herausforderungen seiner Zeit. Zur Wechselwirkung zwischen Theologie und Politik im Zeitalter des großen Frankenherrschers, 1998
Creators: name: Savigni, R.
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 28 Nr. 1 (2001)
Cosmology with Photometrically-Classified Type Ia Supernovae from the SDSS-II Supernova Survey
Creators: name: Campbell, Heather
name: D'Andrea, Chris B.
name: Nichol, Robert C.
name: Sako, Masao
name: Smith, Mathew
name: Lampeitl, Hubert
name: Olmstead, Matthew D.
name: Bassett, Bruce
name: Biswas, Rahul
name: Brown, Peter
name: Cinabro, David
name: Dawson, Kyle S.
name: Dilday, Ben
name: Foley, Ryan J.
name: Frieman, Joshua A.
name: Garnavich, Peter
name: Hlozek, Renee
name: Jha, Saurabh W.
name: Kuhlmann, Steve
name: Kunz, Martin
name: Marriner, John
name: Miquel, Ramon
name: Richmond, Michael
name: Riess, Adam
name: Schneider, Donald P.
name: Sollerman, Jesper
name: Taylor, Matt
name: Zhao, Gong-Bo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the cosmological analysis of 752 photometrically-classified Type Ia Supernovae (SNe Ia) obtained from the full Sloan Digital Sky Survey II (SDSS-II) Supernova (SN) Survey, supplemented with host-galaxy spectroscopy from the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS). Our photometric-classification method is based on the SN typing technique of Sako et al. (2011), aided by host galaxy redshifts (0.05
description: Accepted for publication in The Astrophysical Journal. 33 pages, 29 figures. Data available at http://www.icg.port.ac.uk/stable/campbelh/SDSS_Photometric_SNe_Ia.fits. Table has been corrected and updated
Gender-Kompetenz – Vermittlung im Kontext Schule: Von Widerständen, dem Wunsch nach fertigen Rezepten und von möglichen Lösungen
Creators: name: Nachtsheim, Kathrin
name: Wiedmann, Sybille
Publisher: name: querelles-net
Year: 2009
Subjects: Beruf; Gender Mainstreaming; Schule; Training; Weiterbildung; Geschlecht; Gender

description: Die Autorinnen beschreiben, wie eine Vermittlung von Gender-Kompetenz im Sinne des Gender Mainstreaming an Schulen erfolgen kann und mit welchen Vorbehalten und Widerständen sie es zu tun hat. Schulen als elementare Bildungseinrichtungen sind wichtige gesellschaftliche Institutionen wenn es um Gender Mainstreaming geht und darum, Entwicklungschancen jenseits von geschlechterstereotypen Zuschreibungen zu ermöglichen. Im Bereich Schule zeigen sich ganz aktuell verschiedene genderanalytische Ansatzpunkte: Jungen, die als ‚Verlierer des Bildungssystems’ bezeichnet werden, Mädchen, denen trotz der besseren Schulabschlüsse seltener berufliche Karrieren gelingen und die aus einem sehr kleinen Berufswahlspektrum wählen. Wie sind Jungen für Lesen und Mädchen für Physik zu begeistern? Welche Geschlechterrollenstereotype sind wirksam und wo kann Schule an Veränderungen mitwirken? Welche Kompetenzen benötigen Schulen, Schulleiter/-innen und Lehrer/-innen?
description: querelles-net, Jg. 10, Nr. 1 (2009): Schule
"Bilderbäcker" und ihre Waren : Kleinplastische Tonbildwerke aus Mittelalter und Neuzeit im Rheinischen Landesmuseum Trier
Creators: name: Seewaldt, Peter
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 35 (2003): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
RGE Behaviour of SUSY with a U(2)^3 symmetry
Creators: name: Blankenburg, Gianluca
name: Jones-Perez, Joel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The first LHC results seem to disfavour, from the point of view of naturalness, any constrained MSSM realization with universal conditions at the SUSY-breaking scale. A more motivated scenario is given by split-family SUSY, in which the first two generations of squarks are heavy, compatible with a U(2)^3 flavour symmetry. We consider this flavour symmetry to be broken at a very high scale and study the consequences at low energies through its RGE evolution. Initial conditions compatible with a split scenario are found, and the preservation of correlations from minimal U(2)^3 breaking are checked. The various chiral operators in $ΔF=2$ processes are analyzed, and we show that, due to LHC gluino bounds, the (LL)(RR) operators can not always be neglected. Finally, we also study a possible extension of the U(2)^3 model compatible with the lepton sector.
description: 22 pages, 9 Figures; v2: minor corrections, improved discussion on (LL)(RR) operators, main results unchanged
The hadron resonance gas model: thermodynamics of QCD and Polyakov loop
Creators: name: Megias, E.
name: Arriola, E. Ruiz
name: Salcedo, L. L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the hadron resonance gas model and describe the equation of state of QCD and the vacuum expectation value of the Polyakov loop in the confined phase, in terms of hadronic states with light quarks in the first case, and with exactly one heavy quark in the second case. Comparison with lattice simulations is made.
description: 4 pages, 4 figures. To appear in the proceedings of 16th International Conference in Quantum Chromodynamics (QCD 12), Montpellier, France, 2 - 7 Jul 2012; v2 added references
Münzen machen Wirtschaftsgeschichte : Zum Fund eines Trierer Pfennigs König Ottos III. (983-996) aus Trier
Creators: name: Petry, Klaus
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 37 (2005): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Measurements of the Cerenkov light emitted by a TeO2 crystal
Creators: name: Bellini, F.
name: Casali, N.
name: Dafinei, I.
name: Marafini, M.
name: Morganti, S.
name: Orio, F.
name: Pinci, D.
name: Vignati, M.
name: Voena, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Bolometers have proven to be good instruments to search for rare processes because of their excellent energy resolution and their extremely low intrinsic background. In this kind of detectors, the capability of discriminating alpha particles from electrons represents an important aspect for the background reduction. One possibility for obtaining such a discrimination is provided by the detection of the Cerenkov light which, at the low energies of the natural radioactivity, is only emitted by electrons. In this paper, the results of the analysis of the light emitted by a TeO2 crystal at room temperature when transversed by a cosmic ray are reported. Light is promptly emitted after the particle crossing and a clear evidence of its directionality is also found. These results represent a strong indication that Cerenkov light is the main, if not even the only, component of the light signal in a TeO2 crystal. They open the possibility to make large improvements in the performance of experiments based on this kind of materials
Titel
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 38 (2006): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Minimal energy packings of nearly flexible polymers
Creators: name: Hoy, Robert S.
name: Harwayne-Gidansky, Jared
name: O'Hern, Corey S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We extend recent studies of the minimal energy packings of short flexible polymers with hard-core-like repulsions and short-range attractions to include bond-angle interactions with the aim of describing the collapsed conformations of `colloidal' polymers. We find that flexible tangent sticky-hard-sphere (t-SHS) packings provide a useful perturbative basis for analyzing polymer packings with nonzero bending stiffness only for {\it small} ratios of the stiffnesses for the bond-angle ($k_b$) and pair ($k_c$) interactions, i.e. $k_b^{\rm crit}/k_c \lesssim 0.01$ for $N<10$ monomers, and the critical ratio decreases with $N$. Below $k_b^{crit}$, angular interactions give rise to an exponential (in $N$) increase in the number of distinct angular energies arising from the diversity of covalent backbone paths through t-SHS packings. As $k_b$ increases above $k_b^{crit}$, the low-lying energy landscape changes dramatically as finite bending stiffness alters the structure of the polymer packings. This study lays the groundwork for exact-enumeration studies of the collapsed states of t-SHS-like models with larger bending stiffness.
description: accepted for publication in J. Chem. Phys
Mathematical modeling and numerical simulation of arterial dissection based on a novel surgeon’s view
Creators: name: Soleimani, Meisam
name: Deo, Rohan
name: Hudobivnik, Blaz
name: Poyanmehr, Reza
name: Haverich, Axel
name: Wriggers, Peter
Publisher: name: Berlin ; Heidelberg ; New York, NY : Springer
Year: 2023
Subjects: subject: Atherosclerosis
subject: Dissection
subject: Finite element method
subject: Phase-field modeling
subject: Vasa vasorum
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: This paper presents a mathematical model for arterial dissection based on a novel hypothesis proposed by a surgeon, Axel Haverich, see Haverich (Circulation 135(3):205–207, 2017. https://doi.org/10.1161/circulationaha.116.025407). In an attempt and based on clinical observations, he explained how three different arterial diseases, namely atherosclerosis, aneurysm and dissection have the same root in malfunctioning Vasa Vasorums (VVs) which are micro capillaries responsible for artery wall nourishment. The authors already proposed a mathematical framework for the modeling of atherosclerosis which is the thickening of the artery walls due to an inflammatory response to VVs dysfunction. A multiphysics model based on a phase-field approach coupled with mechanical deformation was proposed for this purpose. The kinematics of mechanical deformation was described using finite strain theory. The entire model is three-dimensional and fully based on a macroscopic continuum description. The objective here is to extend that model by incorporating a damage mechanism in order to capture the tearing (rupture) in the artery wall as a result of micro-injuries in VV. Unlike the existing damage-based model of the dissection in the literature, here the damage is driven by the internal bleeding (hematoma) rather than purely mechanical external loading. The numerical implementation is carried out using finite element method (FEM).
LHC sensitivity to lepton flavour violating Z boson decays
Creators: name: Davidson, Sacha
name: Lacroix, Sylvain
name: Verdier, Patrice
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We estimate that the LHC could set bounds BR(Z -> mu^\pm e^\mp) < 4.1 * 10^{-7} and BR(Z -> tau^\pm mu^\mp)< 3.5 * 10^{-6} (at 95% C.L.) with 20 inverse fb of data at 8 TeV. A similar sensitivity can be anticipated for Z -> tau^\pm e^\mp, because we consider leptonic tau decays such that Z -> tau^+ mu^- gives e^+ μ^- +$ invisibles. These limits can be compared to the LEP1 bounds of order 10^{-5} to 10^{-6}. Such collider searches are sensitive to a flavour-changing effective Z coupling which is energy dependent, so are complementary to bounds obtained from tau to 3mu and mu to 3e.
description: 11 pages, 2 figures, version for publication