cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spatial and temporal scales of force and torque acting on wall-mounted spherical particles in open channel flow
Creators: name: Chan-Braun, Clemens
name: Garcia-Villalba, Manuel
name: Uhlmann, Markus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Data from direct numerical simulation of open channel flow over a geometrically rough wall at a bulk Reynolds number of 2900, generated by Chan-Braun et al. ["Force and torque acting on particles in a transitionally rough open-channel flow", J. Fluid Mech. 684, 441--474 (2011), 10.1017/jfm.2011.311] are further analysed with respect to the time and length scales of force and torque acting on the wall-mounted spheres. For the two sizes of spheres in a square arrangement (11 and 49 wall units in diameter, yielding hydraulically smooth and transitionally rough flow, respectively), the spatial structure of drag, lift and spanwise torque is investigated. The auto-correlation and spectra in time as well as the space-time correlation and convection velocities are presented and discussed. It is found that the statistics of spanwise particle torque are similar to those of shear stress at a smooth wall. Particle drag and lift are shown to differ from spanwise particle torque, exhibiting considerably smaller time and length scales; the convection velocities of drag and lift are somewhat larger than those of spanwise torque. Furthermore, correlations between the flow field and particle-related quantities are presented. The spatial structure of the correlation between streamwise velocity and drag/spanwise torque features elongated shapes reminiscent of buffer-layer streaks. The correlation between the pressure field and the particle drag exhibits two opposite-signed bulges on the upstream and downstream sides of a particle.
description: accepted for publication in Phys. Fluids
Tensor product weight modules over the Virasoro algebra
Creators: name: Chen, Hongjia
name: Guo, Xiangqian
name: Zhao, Kaiming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 17B10, 17B20, 17B65, 17B66, 17B10, 17B20, 17B65, 17B66, 17B68

description: The tensor product of highest weight modules with intermediate series modules over the Virasoro algebra was discussed by Zhang [Z] in 1997. Since then the irreducibility problem for the tensor products has been open. In this paper, we determine the necessary and sufficient conditions for these tensor products to be simple. From non-simple tensor products, we can get other interesting simple Virasoro modules. We also obtain that any two such tensor products are isomorphic if and only if the corresponding highest weight modules and intermediate series modules are isomorphic respectively. Our method is to develop a "shifting technique" and to widely use Feigin-Fuchs' Theorem on singular vectors of Verma modules over the Virasoro algebra.
description: 19 pages, no figures
Reasonable Accommodation of Employees' Parenting and Carer Responsibilities: A Human Rights Perspective
Creators: name: Swannie, Bill
Publisher: name: Monash University
Year: 2022
Subjects: Other law and legal studies not elsewhere classified

description: Positive duties, including a duty to accommodate, are rare in Australian anti-discrimination law. In 2008, the Victorian Parliament enacted a duty on employers to accommodate employees’ parenting or carer responsibilities. This unique duty requires employers to seriously consider how they can accommodate such responsibilities when they determine work arrangements. So far, however, these provisions have been interpreted as requiring all employees to be treated the same, regardless of their circumstances. This article argues that interpretation of the provisions should be guided by the Charter of Human Rights and Responsibilities Act 2006 (Vic). A human rights-focused interpretation would give more weight to the interests of employees with parenting or carer responsibilities and would support the legislative purpose of promoting their full and equal participation in the workforce. This would also assist the cultural change needed to challenge gendered stereotypes regarding the respective roles of men and women in relation to employment and carer work.
The Cross Spectral Time lags evolution along branches in XTE J1701-462
Creators: name: Li, Zhao-sheng
name: Chen, Li
name: Qu, Jin-lu
name: Bu, Qing-cui
name: Wang, De-hua
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the cross spectrum of XTE J1701-462 in various types of Neutron Star-Low Mass X-ray Binary subclasses, during its 2006-2007 outburst. We analyze the relation between the time lags and temporal variabilities. We find that the hard time lags accompany with the horizontal branch oscillations (HBOs) and the soft time lags dominate the noise in the low frequency range 0.1-10 Hz on HB. In the Cyg-like phase, the time lags decrease on the middle normal branch (NB) from HB/NB vertex to NB/FB vertex, whereas the time lags are roughly invariant in the Sco-like source. We discuss that the Compton upscattering by the corona introduces the soft lag in low frequency noise. We interpret that the variation of the Comptonization component from the disk emission lead to the HBOs' time lags evolution along the Z tracks. We also report the rms amplitude spectrum and phase lag spectrum for the NBO. The $\sim$ $160^{\circ}$ phase lag is found. We present that the rms amplitude of both the Cyg-like and the Sco-like NBO linearly increase with the photon energy in low energy bands, and it will drop in the highest energy band.
description: Accepted for publication in The Astrophysical Journal
On the stark difference in satellite distributions around the Milky Way and Andromeda
Creators: name: Yniguez, Basilio
name: Garrison-Kimmel, Shea
name: Boylan-Kolchin, Michael
name: Bullock, James S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We compare spherically-averaged radial number counts of bright (> 10^5 Lsun) dwarf satellite galaxies within 400 kpc of the Milky Way (MW) and M31 and find that the MW satellites are much more centrally concentrated. Remarkably, the two satellite systems are almost identical within the central 100 kpc, while M31 satellites outnumber MW satellites by about a factor of four at deprojected distances spanning 100 - 400 kpc. We compare the observed distributions to those predicted for LCDM suhbalos using a suite of 44 high-resolution ~10^12 halo zoom simulations, 22 of which are in pairs like the MW and M31. We find that the radial distribution of satellites around M31 is fairly typical of those predicted for subhalos, while the Milky Way's distribution is more centrally concentrated that any of our simulated LCDM halos. One possible explanation is that our census is bright (> 10^5 Lsun) MW dwarf galaxies is significantly incomplete beyond ~ 100 kpc of the Sun. If there were ~8 - 20 more bright dwarfs orbiting undetected at 100 - 400 kpc, then the Milky Way's radial distribution would fall within the range expected from subhalo distributions and alos look very much like the known M31 system. We use our simulations to demonstrate that there is enough area left unexplored by the Sloan Digital Sky Survey and its extensions that the discovery of ~10 new bright dwarfs is not implausible given the expected range of angular anisotropy of subhalos in the sky.
description: 10 pages, 8 figures, submitted to MNRAS
Dynamic localization in Glauber-Fock lattices
Creators: name: Longhi, S.
name: Szameit, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Glauber-Fock lattices refer to a special class of semi-infinite tight-binding lattices with inhomogeneous hopping rates which are found in certain simple solid-state, quantum optics and quantum field theoretical models. Here it is shown that dynamic localization, i.e. suppression of quantum diffusion and periodic quantum self-imaging by an external sinusoidal force [D.H. Dunlap and V.M. Kenkre, Phys. Rev. B {\bf 34}, 3625 (1986)], can be exactly realized in Glauber-Fock lattices, in spite of inhomogeneity of hopping rates and lattice truncation.
description: 3 figures
Age-specific contacts and travel patterns in the spatial spread of 2009 H1N1 influenza pandemic
Creators: name: Apolloni, Andrea
name: Poletto, Chiara
name: Colizza, Vittoria
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Confirmed cases during the early stage of the 2009 H1N1 pdm in various countries showed an age shift between importations and local transmission cases, with adults mainly responsible for seeding unaffected regions and children most frequently driving community outbreaks. We introduce a multi-host stochastic metapopulation model with two age classes to analytically address the role of a heterogeneously mixing population and its associated non-homogeneous travel behaviors on the risk of a major epidemic. We inform the model with statistics on demography, mixing and travel behavior for Europe and Mexico, and calibrate it to the 2009 H1N1 pdm early outbreak. We varied model parameters to explore the invasion conditions under different scenarios. We derive the expression for the global invasion potential of the epidemic that depends on disease transmissibility, transportation network and mobility features, demographic profile and mixing pattern. Highly assortative mixing favor the spatial containment of the epidemic, this effect being contrasted by an increase in the social activity of adults vs. children. Heterogeneity of the mobility network topology and traffic flows strongly favor the disease invasion, as also a larger fraction of children traveling. Variations in the demography and mixing habits across countries lead to heterogeneous outbreak situations. Results are compatible with the H1N1 spatial spread observed. The work illustrates the importance of age-dependent mixing profiles and mobility features in the study of the conditions for the spatial invasion of an emerging influenza pandemic. Its results allow the immediate assessment of the risk of a major epidemic for a specific scenario upon availability of data, and the evaluation of the effectiveness of public health interventions targeting specific age groups, their interactions and mobility behaviors.
description: 40 pages, 7 figures
Properties of certain analytic functions associated with two boundary points
Creators: name: Shiraishi, Hitoshi
name: Owa, Shigeyoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C45

description: For analytic functions f(z) in the closed unit disk \bar{U}, two boundary points z_1 and z_2 such that α= (f'(z_1)+f'(z_2))/2 in f'(U) are considered. The object of the present paper is to discuss some interesting conditions for f(z) to be |f'(z)-1|
AGN outflows trigger starbursts in gas-rich galaxies
Creators: name: Zubovas, Kastytis
name: Nayakshin, Sergei
name: King, Andrew
name: Wilkinson, Mark
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent well resolved numerical simulations of AGN feedback have shown that its effects on the host galaxy may be not only negative but also positive. In the late gas poor phase, AGN feedback blows the gas away and terminates star formation. However, in the gas-rich phase(s), AGN outflows trigger star formation by over-compressing cold dense gas and thus provide positive feedback on their hosts. In this paper we study this AGN-triggered starburst effect. We show that star formation rate in the burst increases until the star formation feedback counteracts locally the AGN outflow compression. Globally, this predicts a strong nearly linear statistical correlation between the AGN and starburst bolometric luminosities in disc galaxies, L_* \propto L_{AGN}^{5/6}. The correlation is statistical only because AGN activity may fluctuate on short time scales (as short as tens of years), and because AGN may turn off but its effects on the host may continue to last until the AGN-driven outflow leaves the host, which may be up to 10 times longer than the duration of the AGN activity. The coefficient in front of this relation depends on the clumpiness and morphology of the cold gas in the galaxy. A "maximum starburst" takes place in am azimuthally uniform gas disc, for which we derive an upper limit of L_* \sim 50 times larger than L_{AGN} for typical quasars. For more clumpy and/or compact cold gas distributions, the starburst luminosity decreases. We also suggest that similar AGN-triggerred starbursts are possible in hosts of all geometries, including during galaxy mergers, provided the AGN is activated. Finally, we note that due to the short duration of the AGN activity phase the accelerating influence of AGN on starbursts may be much more common than observations of simultaneous AGN and starbursts would suggest.
description: 14 pages, 6 figures. Accepted for publication in MNRAS
Log-integrability of Rademacher Fourier series, with applications to random analytic functions
Creators: name: Nazarov, Fedor
name: Nishry, Alon
name: Sodin, Mikhail
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We prove that any power of the logarithm of Fourier series with random signs is integrable. This result has applications to the distribution of values of random Taylor series, one of which answers a long-standing question by J.-P. Kahane.
Nurturing Lyman Break Galaxies: Observed link between environment and spectroscopic features
Creators: name: Cooke, Jeff
name: Omori, Yuuki
name: Ryan-Weber, Emma
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the effects of magnitude, colour, and Ly-alpha equivalent width (EW) on the spatial distribution of z~3 Lyman break galaxies (LBGs) and report significant differences in their auto-correlation functions (ACFs). The results are obtained using samples of ~10,000-57,000 LBGs from the Canada-France-Hawaii Telescope Legacy Survey. We find that magnitude has a larger effect on the ACF amplitude on small scales (~1 Mpc). We find the most significant differences between ACFs for LBGs with dominant net Ly-alpha EW in absorption (aLBGs) and dominant net Ly-alpha EW in emission (eLBGs) determined from >~95% pure samples of each population using a photometric technique calibrated from ~1000 spectra. The aLBG ACF one-halo term departs from a power law fit near ~1 Mpc, corresponding to the virial radii of M_DM ~10^13 M_solar haloes, and shows a strong two-halo term amplitude. In contrast, the eLBG ACF one-halo term departs at ~0.12 Mpc, suggesting parent haloes of M_DM ~10^11 M_solar, and a two-halo term that exhibits a `hump' on intermediate scales that we localize to the faintest, bluest members. We find that the `hump' can be well fit with a model in which a significant fraction of eLBGs reside on shells. The auto- and cross-correlation functions indicate that aLBGs are found in massive, group-like haloes and that eLBGs are found largely on group outskirts and in the field. Ly-alpha is a tracer of several intrinsic LBG properties, including morphology, implying that the mechanisms behind the morphology-density relation are in place at z~3 and that Ly-alpha EW may be a key environment diagnostic. Finally, our results show that the mass of LBGs has been underestimated because the LBG ACF amplitude is lower than the true average as a result of the spatial anti-correlation of the spectral sub-types (abridged).
description: 22 pages, 14 figures, 2 tables, submitted to MNRAS
ACH: Away Cluster Heads Scheme for Energy Efficient Clustering Protocols in WSNs
Creators: name: Javaid, N.
name: Waseem, M.
name: Khan, Z. A.
name: Qasim, U.
name: Latif, K.
name: Javaid, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This paper deals with the routing protocols for distributed wireless sensor networks. The conventional protocols for WSNs like Low Energy adaptive Clustering Hierarchy (LEACH), Stable Election Protocol (SEP), Threshold Sensitive Energy Efficient Network (TEEN), Distributed Energy Efficient Clustering Protocol (DEEC) may not be optimal. We propose a scheme called Away Cluster Head (ACH) which effectively increases the efficiency of conventional clustering based protocols in terms of stability period and number of packets sent to base station (BS). We have implemented ACH scheme on LEACH, SEP, TEEN and DEEC. Simulation results show that LEACHACH, SEP-ACH, TEEN-ACH and DEEC-ACH performs better than LEACH, SEP, TEEN and DEEC respectively in terms of stability period and number of packets sent to BS. The stability period of the existing protocols prolongs by implementing ACH on them.
description: 2nd IEEE Saudi International Electronics, Communications and Photonics Conference (SIECPC 13), 2013, Riyadh, Saudi Arabia
title: Integrating Learning Approach in Interactive Assistive Courseware for Young Low Vision (AC4LV) Learners
Creators: name: Nurulnadwan , Aziz
name: Abdul Mutalib, Ariffin
Publisher: name: TEM Journal
Year: 2019

description: This paper proposes an interactive assistive courseware for young low vision learners particularly at primary school level. It was reported in the previous literatures that low vision learners face difficulties in their learning activities since they have to utilize the similar learning materials as general students. As a solution, this study proposes an Interactive Assistive Courseware for Young Low Vision (AC4LV) Learners based on four types of learning approaches. These are: (i) Mastery Learning Approach, (ii) Problem-based Learning (iii) Active Learning (iv) and Self-paced Learning. User Centred Design (UCD) Approach has been applied throughout the development of AC4LV as it is important for this study to ensure the proposed courseware meets the user requirements. Findings of this study report the integrated learning approaches in AC4LV.
Spin polarization via decoherence in spin-orbit active media coupled to an electron reservoir
Creators: name: González-Árraga, Luis A.
name: Berche, Bertrand
name: Medina, Ernesto
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the spin polarization of mixed and entangled electron states in a four probe/beam splitter geometry with local Rashba and Dresselhaus interactions. A pair of maximally entangled electrons collides with the beam splitter and enters into two perpendicular branches of length L, composed of spin-orbit active materials (gate confined 2D electron gas). One of the branches is connected to an electron reservoir that acts as a source of decoherence by either behaving as a voltage probe or as a controlled source or sink of current at fixed voltage. Such decoherence source is used to modify the entropy of an unpolarized incoming state in order to generate electron polarization at one or both output branches. The degree of entanglement of the global state and the spin polarization is computed for the outgoing electrons as a function of the coupling to the electron reservoir. Experimentally available spin-orbit strength at the beam splitter arms, for arm lengths of a few micrometers, is able to modulate spin polarization up to 80% in particular spin axes proportional to the decoherence current. The Dresselhaus and Rashba coefficients play a symmetric role in modulating the polarization. Significantly less polarization is achieved for incoming mixed states due to the local operation of the reservoir.
title: Flipped Learning in Engineering Education
Creators: name: Prevalla, Blerta
name: Uzunboylu, Huseyin
Publisher: name: TEM Journal
Year: 2019

description: Flipped learning is a developing concept in higher education and a new methodology ready for exploration. It is a new educational strategy that changes the traditional lecturing by flipping the classroom in the sense of listening the lectures at home and doing dynamic, group-based problem-solving activities in the classroom. This will engage the students in active learning, critical thinking and developing new studying skills.
This paper will address the current state of knowledge and practice in the flipped learning approach in engineering education by critically evaluating the existing researches and summarizing the findings. The search for empirical articles included electronic databases for engineering education in the Web of Science. Most studies reported high student satisfaction and increased performance in a flipped classroom environment. This paper will also serve as a guide for future studies and reflect the major achievements of flipped learning models over the traditional lecture-exercises model in engineering education to support and advance the student learning process.
A circuit analysis of an in situ tunable radio-frequency quantum point contact
Creators: name: Müller, Thomas
name: Choi, Theodore
name: Hellmüller, Sarah
name: Ensslin, Klaus
name: Ihn, Thomas
name: Schön, Silke
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A detailed analysis of the tunability of a radio-frequency quantum point contact setup using a C-LCR circuit is presented. We calculate how the series capacitance influences resonance frequency and charge-detector resistance for which matching is achieved as well as the voltage and power delivered to the load. Furthermore, we compute the noise contributions in the system and compare our findings with measurements taken with an etched quantum point contact. While our considerations mostly focus on our specific choice of matching circuit, the discussion of the influence of source-to-load power transfer on the signal-to-noise ratio is valid generally.
description: 10 pages, 9 figures
title: Working Papers Contested Order/ eAQUA Working Papers, Vol 10 (2013):
Creators: name: Working Papers Contested Order/ EAQUA Working Papers
Publisher: name: University Library Heidelberg
Year: 2013

description: Das Portal eAQUA – Neue Methoden in der geisteswissenschaftlichen Forschung V
description: Titel
 Impressum
 Content
 Visualisierung und Wissensrepräsentation: Die kleisthenische Phylenreform...1-8
 Visualisierung der Kleisthenischen Phylenreform...11-13
 Visualisierung der Kleisthenischen Phylenreform...14-16
 Visualisierung der Kleisthenischen Phylenreform...17-19
 Visualisierung der Kleisthenischen Phylenreform...20-22
 Visualisierung der Kleisthenischen Phylenreform...23-24
 Visualisierung der Kleisthenischen Phylenreform...27-28
 Visualisierung der Kleisthenischen Phylenreform...29-30
 Visualisierung der Kleisthenischen Phylenreform...31-32
 eAQUA Working Paper Series
 Quellenangabe
 Visualisierung der Kleisthenischen Phylenreform...9-10
 Visualisierung der Kleisthenischen Phylenreform...25-26
 Glossar...33
 AutorInnen...34
Recurrence Plots 25 years later -- gaining confidence in dynamical transitions
Creators: name: Marwan, Norbert
name: Schinkel, Stefan
name: Kurths, Jürgen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Recurrence plot based time series analysis is widely used to study changes and transitions in the dynamics of a system or temporal deviations from its overall dynamical regime. However, most studies do not discuss the significance of the detected variations in the recurrence quantification measures. In this letter we propose a novel method to add a confidence measure to the recurrence quantification analysis. We show how this approach can be used to study significant changes in dynamical systems due to a change in control parameters, chaos-order as well as chaos-chaos transitions. Finally we study and discuss climate transitions by analysing a marine proxy record for past sea surface temperature. This paper is dedicated to the 25th anniversary of the introduction of recurrence plots.
The Origin and Optical Depth of Ionizing Radiation in the "Green Pea" Galaxies
Creators: name: Jaskot, A. E.
name: Oey, M. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Although Lyman continuum (LyC) radiation from star-forming galaxies likely drove the reionization of the Universe, observations of star-forming galaxies at low redshift generally indicate low LyC escape fractions. However, the extreme [O III]/[O II] ratios of the z=0.1-0.3 Green Pea galaxies may be due to high escape fractions of ionizing radiation. To analyze the LyC optical depths and ionizing sources of these rare, compact starbursts, we compare nebular photoionization and stellar population models with observed emission lines in the Peas' SDSS spectra. We focus on the six most extreme Green Peas, the galaxies with the highest [O III]/[O II] ratios and the best candidates for escaping ionizing radiation. The Balmer line equivalent widths and He I λ3819 emission in the extreme Peas support young ages of 3-5 Myr, and He II λ4686 emission in five extreme Peas signals the presence of hard ionizing sources. Ionization by active galactic nuclei or high-mass X-ray binaries is inconsistent with the Peas' line ratios and ages. Although stacked spectra reveal no Wolf-Rayet (WR) features, we tentatively detect WR features in the SDSS spectra of three extreme Peas. Based on the Peas' ages and line ratios, we find that WR stars, chemically homogeneous O stars, or shocks could produce the observed He II emission. If hot stars are responsible, the Peas' optical depths are ambiguous. However, accounting for emission from shocks lowers the inferred optical depth and suggests that the Peas may be optically thin. The Peas' ages likely optimize the escape of Lyman-continuum radiation; they are old enough for supernovae and stellar winds to reshape the interstellar medium, but young enough to possess large numbers of UV-luminous O or WR stars.
description: 27 pages, 14 figures, Submitted to ApJ (revised version after referee report)
The Higgs boson
Creators: name: Pimenta, Jean Jûnio Mendes
name: Belussi, Lucas Francisco Bosso
name: Natti, Érica Regina Takano
name: Natti, Paulo Laerte
Publisher: name: arXiv
Year: 2013
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The Higgs boson was predicted in 1964 by British physicist Peter Higgs. The Higgs is the key to explain the origin of the mass of other elementary particles of Nature. However, only with the coming into operation of the LHC, in 2008, there were technological conditions to search for the Higgs boson. Recently, a major international effort conducted at CERN, by means of ATLAS and CMS experiments, has enabled the observation of a new bosonic particle in the region of 125 GeVs. In this paper, by means of known mechanisms of symmetry breaking that occur in the BCS theory of superconductivity and in the theory of nuclear pairing, we discuss the Higgs mechanism in the Standard Model. Finally, we present the current state of research looking for the Higgs boson and the alternative theories and extensions of the Standard Model for the elementary particle physics. Keywords: Higgs boson, BCS theory, nuclear pairing, Higgs mechanism, Standard Model.
description: Article in Portuguese. The paper will appear in Volume 35 of the Revista Brasileira de Ensino de F\'isica
Anisotropic Halo Model
Creators: name: Sgró, M. A.
name: Paz, D. J.
name: Merchán, M. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the present work, we extend the classic halo model for the large-scale matter distribution including a triaxial model for the halo profiles and their alignments. In particular, we derive general expressions for the halo-matter cross correlation function. In addition, by numerical integration, we obtain instances of the cross-correlation function depending on the directions given by halo shape axes. These functions are called anisotropic cross-correlations. With the aim of comparing our theoretical results with the simulations, we compute averaged anisotropic correlations in cones with their symmetry axis along each shape direction of the centre halo. From these comparisons we characterise and quantify the alignment of dark matter haloes on the $Λ$CDM context by means of the presented anisotropic halo model. As our model requires multidimensional integral computation we implement a Monte Carlo method on GPU hardware which allows us to increase the precision of the results whereas it improves the performance of the computation.
description: 10 pages, 5 figures. Accepted for publication in MNRAS
GROWTH OF GAS DOPED COPPER SULPHIDE – IODATE CRYSTALS IN GEL WITH ITS COMPARATIVE TOPOGRAPHICAL AND MORPHOLOGICAL PARAMETERS
Creators: name: K. P., JOSHI
Publisher: name: Zenodo
Year: 2025

description: The gas doped copper sulphide crystals and copper iodate are grown using single diffusion technique of crystal growth. Effect of    supernatants, concentration programming explained and experimentally studied. This report presents the morphological and topographical characteristics of two types of copper compounds  Copper Sulphide (CuS) and Copper Iodate Cu(IO₃)₂. The study compares grown crystals of both compounds with their respective ideal crystalline
An application of Miller and Mocanu lemma
Creators: name: Shiraishi, Hitoshi
name: Owa, Shigeyoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C45

description: Let H[a_0,n] be the class of functions f(z)=a_0+a_nz^n+...which are analytic in the open unit disk U}. For f(z) in H[a_0,n], S. S. Miller and P. T. Mocanu (J. Math. Anal. Appl. 65(1978), 289-305) have shown Miller and Mocanu lemma which is the generalization of Jack lemma by I. S. Jack (J. London Math. Soc. 3(1971), 469-474). Applying Miller and Mocanu lemma, an interesting property for f(z) in H[a_0,n] and an example are discuss.
title: Fostering Students’ Self-Regulated Learning Through using a Learning Management System to Enhance Academic Outcomes at the University of Bisha
Creators: name: Alkhasawnh, Sani
name: Ayid M Alqahtani, Mohammed
Publisher: name: TEM Journal
Year: 2019

description: This research was designed to investigate the effects of using online undergraduate courses, based on Self-Regulated Learning (SRL) strategies, in order to enhance students’ self-regulation and academic outcomes at the University of Bisha in Saudi Arabia. A quasi-experimental design was applied in this study. Sampling consisted of 70 female students from the Educational Faculty at the University of Bisha. Two types of online courses were used to teach the same concept. A group of students was taught online course supported on SRL strategies and the other group by using an online course not supported on SRL strategies. The result of independent samples t-test and one-way analysis of covariance (ANCOVA) showed that the online course supported on SRL strategies has a significant effect on students’ self-regulation and academic outcomes.
title: Der sogenannte Gallschädel. 100 Jahre medico-historisches Kabinett
Creators: name: Willers, Johannes
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 1 (2004): KulturGut : aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
Quantum simulation of the Riemann-Hurwitz zeta function
Creators: name: Torosov, Boyan T.
name: Della Valle, Giuseppe
name: Longhi, Stefano
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a simple realization of a quantum simulator of the Riemann-Hurwitz (RH) ζ function based on a truncation of its Dirichlet representation. We synthesize a nearest-neighbour-interaction Hamiltonian, satisfying the property that the temporal evolution of the autocorrelation function of an initial bare state of the Hamiltonian reproduces the RH function along the line σ+i ωt of the complex plane, with σ>1. The tight-binding Hamiltonian with engineered hopping rates and site energies can be implemented in a variety of physical systems, including trapped ion systems and optical waveguide arrays. The proposed method is scalable, which means that the simulation can be in principle arbitrarily accurate. Practical limitations of the suggested scheme, arising from a finite number of lattice sites N and from decoherence, are briefly discussed.
description: 6 pages, 3 figures
title: Das Gebetbuch als Garten. Der "Gilgengart" für Kaiser Maximilian I.
Creators: name: Lauterbach, Christiane
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 2 (2004): KulturGut : aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
Some remarks on the Pigola-Rigoli-Setti version of the Omori-Yau maximum principle
Creators: name: Fontenele, Francisco
name: Barreto, Alexandre Paiva
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C21, 35B50

description: We prove that the hypotheses in the version of the Omori-Yau maximum principle that was given by Pigola-Rigoli-Setti are logically equivalent to the assumption that the manifold carries a $C^2$ proper function whose gradient and Hessian (Laplacian) are bounded. In particular, this result extends the scope of the original Omori-Yau principle, formulated in terms of lower bounds for curvature.
title: Kleine Köpfe. Romanische und barocke Bildwerke aus dem Depot
Creators: name: Kammel, Frank Matthias
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 2 (2004): KulturGut : aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
title: Denkmal der schönen Individualität und nationale Ikone. Johann Heinrich Danneckers Hermenbüste Friedrich Schillers und ihre Verbreitung
Creators: name: Peters, Ursula
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 7 (2005): KulturGut : aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
Weak-Value Amplification of light deflection by a dark atomic ensemble
Creators: name: Zhou, Lan
name: Turek, Yusuf
name: Sun, C. P.
name: Nori, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the coherent propagation of light whose dynamics is governed by the effective Schrödinger equation derived in a magneto-optically-manipulated atomic ensemble with a four-level tripod configuration for electromagnetically induced transparency (EIT). The small transverse deflection of an optical beam, which is ultra-sensitive to the EIT effect, could be drastically amplified via a weak measurement with an appropriate preselection and postselection of the polarization state. The physical mechanism is explained as the effect of wavepacket reshaping, which results in an enlarged group velocity in the transverse direction.
title: Inhalt / Aktuelle Ausstellungen / Impressum
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 10 (2006): KulturGut : aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
A minor merger scenario for the ultraluminous X-ray source ESO 243-49 HLX-1 - II. Constraints from photometry
Creators: name: Mapelli, M.
name: Annibali, F.
name: Zampieri, L.
name: Soria, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The point-like X-ray source HLX-1, close to the S0 galaxy ESO 243-49, is the brightest known ultraluminous X-ray source and one the strongest intermediate-mass black hole candidates. We argue that the counterpart of HLX-1 may be the nucleus of a satellite galaxy, undergoing minor merger with the S0 galaxy. We investigate this scenario by running a set of N-body/smoothed particle hydrodynamics simulations of the minor merger between a S0 galaxy and a gas-rich bulgy satellite galaxy, and by comparing the results with the available photometric Hubble Space Telescope (HST) data of ESO 243-49 and of the HLX-1 counterpart. In particular, we derive synthetic surface brightness profiles for the simulated counterpart of HLX-1 in six HST filters, ranging from far ultraviolet (FUV) to infrared wavelengths. Such synthetic profiles include a contribution from the stellar population associated with the simulated disrupted satellite and a contribution from an irradiated disc model. These are in reasonable agreement with the observed surface brightness profiles of the HLX-1 counterpart, provided that the merger is at sufficiently late stage (>~2.5 Gyr since the first pericentre passage). The main difference between models and observations is in the FUV band, where the HST image shows a fuzzy and extended emission. We show that the spectral energy distribution of the bulge of ESO 243-49 cannot be explained with a single old stellar population, but requires the existence of a younger stellar component. This is in good agreement with the star formation history derived from our N-body simulations, and is a further hint for the minor merger scenario.
description: 19 pages, 11 figures, 7 tables, MNRAS, accepted
title: Ein Zimmerdenkmal für den liberalen Bürger
Creators: name: Peters, Ursula
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 11 (2006): KulturGut : aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
title: Die Macht des Silbers Karolingische Schätze im Norden. – Ausstellung des Museums für Vor und Frühgeschichte; Frankfurt im Germanischen Nationalmuseum vom 25. Januar bis 23. April 2006
Creators: name: Springer, Tobias
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 8 (2006): KulturGut : aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
Binary pulsar B1259-63 spectrum evolution: detailed study
Creators: name: Dembska, Marta
name: Kijak, Jarosław
name: Lewandowski, Wojciech
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We studied the radio spectrum of PSR B1259-63 in an unique binary with Be star LS 2883 and showed that the shape of the spectrum depends on the orbital phase. We proposed a qualitative model which explains this evolution. We considered two mechanisms that might influence the observed radio emission: free-free absorption and cyclotron resonance. Recently published results have revealed a new aspect in pulsar radio spectra. There were found objects with turnover at high frequencies in spectra, called gigahertz-peaked spectra (GPS) pulsars. Most of them adjoin such interesting environments as HII regions or compact pulsar wind nebulae (PWN). Thus, it is suggested that the turnover phenomenon is associated with the environment than being related intrinsically to the radio emission mechanism. Having noticed the apparent resemblance between the B1259-63 spectrum and the GPS, we suggest that the same mechanisms should be responsible for both cases. Therefore, the case of B1259-63 can be treated as a key factor to explain the GPS phenomenon observed for the solitary pulsars with interesting environments and also another types of spectra (e.g. with break).
description: Proceedings of IAUS 291 "Neutron Stars and Pulsars: Challenges and Opportunities after 80 years", J. van Leeuwen (ed.); 4 pages, 2 figures
title: Modellschule des NS-Schulsystems. Die Wolfbuschschule in Stuttgart-Weilimdorf
Creators: name: Renz, Kerstin
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 1 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Neuerscheinungen
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 1 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
A robust Bayesian approach to modelling epistemic uncertainty in common-cause failure models
Creators: name: Troffaes, Matthias C. M.
name: Walter, Gero
name: Kelly, Dana
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: G.3
subject: 62F15, 90C26, 62A01

description: In a standard Bayesian approach to the alpha-factor model for common-cause failure, a precise Dirichlet prior distribution models epistemic uncertainty in the alpha-factors. This Dirichlet prior is then updated with observed data to obtain a posterior distribution, which forms the basis for further inferences. In this paper, we adapt the imprecise Dirichlet model of Walley to represent epistemic uncertainty in the alpha-factors. In this approach, epistemic uncertainty is expressed more cautiously via lower and upper expectations for each alpha-factor, along with a learning parameter which determines how quickly the model learns from observed data. For this application, we focus on elicitation of the learning parameter, and find that values in the range of 1 to 10 seem reasonable. The approach is compared with Kelly and Atwood's minimally informative Dirichlet prior for the alpha-factor model, which incorporated precise mean values for the alpha-factors, but which was otherwise quite diffuse. Next, we explore the use of a set of Gamma priors to model epistemic uncertainty in the marginal failure rate, expressed via a lower and upper expectation for this rate, again along with a learning parameter. As zero counts are generally less of an issue here, we find that the choice of this learning parameter is less crucial. Finally, we demonstrate how both epistemic uncertainty models can be combined to arrive at lower and upper expectations for all common-cause failure rates. Thereby, we effectively provide a full sensitivity analysis of common-cause failure rates, properly reflecting epistemic uncertainty of the analyst on all levels of the common-cause failure model.
description: 16 pages
High spin polarization of the anomalous Hall current in Co-based Heusler compounds
Creators: name: Tung, Jen-Chuan
name: Guo, Guang-Yu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on first principles density functional calculations of the intrinsic anomalous and spin Hall conductivities, we predict that the charge Hall current in Co-based full Heusler compounds Co$_2$XZ (X = Cr and Mn; Z = Al, Si, Ga, Ge, In and Sn) except Co$_2$CrGa would be almost fully spin-polarized even although Co$_2$MnAl, Co$_2$MnGa, Co$_2$MnIn and Co$_2$MnSn do not have a half-metallic band structure. Furthermore, the ratio of the associated spin current to the charge Hall current is slightly larger than 1.0. This suggests that these Co-based Heusler compounds, especially Co$_2$MnAl, Co$_2$MnGa and Co$_2$MnIn which are found to have large anomalous and spin Hall conductivities, might be called anomalous Hall half-metals and could have valuable applications in spintronics such as spin valves as well as magnetoresistive and spin-torque driven nanodevices. These interesting findings are discussed in terms of the calculated electronic band structures, magnetic moments and also anomalous and spin Hall conductivities as a function of the Fermi level.
description: Accepted for publication in New Journal of Physics
Analysis of integral Equations of convolution type via Residue Theorem Approach
Creators: name: Gupta, Rohit
Publisher: name: figshare
Year: 2023
Subjects: Mathematical physics not elsewhere classified

description: n this paper, we analyze integral equations of convolution type via the application of Residue Theorem. Generally, these equations arise in the area of stability and control. This paper presents a new technique to demonstrate the use of the residue theorem for analyzing integral equations of convolution type. It reveals that the residue theorem approach is effective and powerful tool for the analysis of integral equations of convolution type.
Millimeter-wave surface impedance of optimally-doped Ba(Fe1-xCox)2As2 single crystals
Creators: name: Barannik, A.
name: Cherpak, N. T.
name: Tanatar, M. A.
name: Vitusevich, S.
name: Skresanov, V.
name: Canfield, P. C.
name: Prozorov, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Precision measurements of active and reactive components of in-plane microwave surface impedance were performed in single crystals of optimally-doped Fe-based superconductor Ba(Fe1-xCox)2As2 (x = 0.074, Tc = 22.8 K). Measurements in a millimeter wavelength range (Ka band, 35-40 GHz) were performed using whispering gallery mode excitations in the ultrahigh quality factor quasioptical sapphire disk resonator with YBa2Cu2O7 superconducting (Tc = 90 K) end plates. The temperature variation of the London penetration depth is best described by a power-law function, delta λ(T) is proportional to T with the exponent n, n = 2.8, in reasonable agreement with radio-frequency measurements on crystals of the same batch. This power-law dependence is characteristic of a nodeless superconducting gap in the extended s-wave pairing scenario with a strong pair-breaking scattering. The quasiparticle conductivity of the samples, σ1(T), gradually increases with the decrease of temperature, showing no peak below or at Tc, in notable contrast with the behavior found in the cuprates. The temperature-dependent quasiparticle scattering rate was analyzed in a two-fluid model, assuming the validity of the Drude description of conductivity and generalized expression for the scattering rate. This analysis allows us to estimate the range of the values of a residual surface resistance from 3 to 6 mOhm.
description: 7 pages, 7 figures