cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Configuration interaction method for Fock-Darwin states
Creators: name: Wensauer, Andreas
name: Korkusinski, Marek
name: Hawrylak, Pawel
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: A. Nanostructures; D. Electron–electron interactions; D. Electronic states (localized)
subject: 530 Physik

description: We present a configuration interaction method optimized for Fock–Darwin states of two-dimensional quantum dots with an axially symmetric, parabolic confinement potential subject to a perpendicular magnetic field. The optimization explicitly accounts for geometrical and dynamical symmetries of the Fock–Darwin single-particle states and for many-particle symmetries associated with the center-of-mass motion and with the total spin. This results in a basis set of reduced size and improved accuracy. The numerical results compare well with the quantum Monte Carlo and stochastic-variational methods. The method is illustrated by the evolution of a strongly correlated few-electron droplet in a magnetic field in the regime of the fractional quantum Hall effect.
States of a chiral 2d CFT
Creators: name: Balasubramanian, Vijay
name: Parsons, Jamie
name: Ross, Simon F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the dual description of the self-dual orbifold, a locally AdS_3 spacetime which is a circle fibration over AdS_2 and arises as the near-horizon limit of the extreme BTZ black hole. The geometry has two boundaries; we argue that this should correspond to a saddle-point for two copies of a chiral CFT living on these two boundaries in an entangled state. This picture arises naturally in the near-horizon limit, but there is a potential inconsistency with the bulk physics because of causal connections between the boundaries. We discuss a possible resolution of this puzzle. We also construct geometries which asymptotically approach the self-dual orbifold on a single boundary. These geometries (which contain mild singularities) enable us to explore other states of the dual chiral CFT. One of the geometries corresponds to the ground state of this CFT and can be obtained as a particular near-horizon limit of the BTZ M=0 black hole. The self-dual orbifold is a finite temperature version of this geometry.
description: 31 pages, 2 figures
Naturhistorie på 1700-tallet
Creators: name: Ochsner, Simone
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2011

description: Natural history from the 18th century - a global tale? by Simone Ochsnerdiscusses the apparent paradox that a series of scientific works from the 18th century, which mainly seem to focus on the local, can be considered global tales. Ochsner wonders if it is possible to see natural histories as global tales when they at that time, as regards content, change the focus from the encyclopedic to the regional and local. Ochsner has an etymological starting point, as she asks what global, a concept which has been used for some decades, might have meant in the 18th century.
description: Akademisk kvarter | Academic Quarter, Global Tales | Globale fortællinger, Vol. 2
Exchange correlation energy densities for two-dimensional systems from quantum dot ground-states
Creators: name: Wensauer, Andreas
name: Rössler, Ulrich
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: 530 Physik

description: In this paper we present how to extract polarization-dependent exchange-correlation energy densities for two-dimensional systems from reference densities and energies of quantum dots provided by an exact diagonalization. Compared with results from the literature, we find systematic corrections for all polarizations in the regime of high densities.
Tales of Tourism
Creators: name: Smed, Karina M.
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2011

description: Tales of Tourism - Global Changes and tourism discourse by Karina Smedpresents us with what has been the dominant discourse of tourism, i.e. a discourse which has had its roots in the West's economic and cultural hegemony and the problem of the formation of identity from the dichotomy "self" and the "others". The author discusses to which extent tourism discourse is global as the reception of it has been different depending on the context. Moreover, she reflects on the impact upon this global narrative that the new economic world order will have. The new and emergent economies lead to a flow of tourists in the opposite direction: from China, India and Russia to western countries and worldwide and this will probably change the concept of tourism and our idea of identities.
description: Akademisk kvarter | Academic Quarter, Global Tales | Globale fortællinger, Vol. 2
McJingles
Creators: name: Graakjær, Nicolai J.
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2011

description: Nicolai Jørgensgaard Graakjær's contribution, McJingles - On the use of music in the McDonald's-campaign 'i'm lovin' it', is a stylistic and linguistic analysis of a slogan in an advertising campaign from McDonald's. McDonald's is one of the most prominent symbols of global culture and as such has been the focus of discussions about the homogenization of culture at a global level. Based on its analysis of the slogan's musical minimization and variation Graakjær argues that McDonald's does not only adapt itself to a time when the audience are saturated with advertising, but the burger chain, even though it strives for global standards, can still make cultural considerations and be adapted to local conditions. Here we see a different perspective linking well with the considerations that Karina M. Smed makes about the relationship between the global and the local based on tourism discourses.
description: Akademisk kvarter | Academic Quarter, Global Tales | Globale fortællinger, Vol. 2
Crystal structure of η″-Fe3Al7+x  determined by single-crystal synchrotron X-ray diffraction combined with scanning transmission electron microscopy
Creators: name: Okamoto, Norihiko L.
name: Higashi, Masaya
name: Inui, Haruyuki
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Hematology
subject: 60506 Virology
subject: Computational Biology

description: The crystal structure of η″-Fe3Al7+x , the low-temperature phase of η-Fe2Al5 with a composition on the Fe-rich side of the solid solubility range, has been determined by synchrotron X-ray single-crystal diffraction combined with scanning transmission electron microscopy. The η″ phase possesses commensurate long-period-ordered superlattice structures (space group Pmcn) based on the parent orthorhombic unit cell of η-Fe2Al5, consisting of twin domains (orientation variants) alternately stacked along the long-periodicity axis. Each of the twin domains possesses a motif structure belonging to the base-centered monoclinic space group C2/m, with a cell volume twice that of the parent orthorhombic unit cell (space group Cmcm). One-fourth of the c-axis chain sites corresponding to Al2- and Al3-sites in the η phase are respectively occupied by both Fe and Al atoms and exclusively by Al atoms in a regular manner. This regularity is disturbed in the twin-boundary region, giving rise to structural/compositional modulation. Because of the different chemical compositions between the motif structure and twin-boundary region, the η″ phase with various compositions can be constructed only by changing the number of the parent orthorhombic unit cells to be stacked along the orthorhombic c-axis, without changing the atomic arrangements for the motif structure or the twin boundary to account for the observed solid solubility range. The chemical formula of the η″ phase can thus be expressed as Fe3Al7+x  under a simple assumption on the occupancies for Al/Fe atoms in the c-axis chain sites.
Flux-cutting and flux-transport effects in type-II superconductor slabs in a parallel rotating magnetic field
Creators: name: Cortés-Maldonado, R.
name: Espinosa-Rosales, J. E.
name: Carballo-Sánchez, A. F.
name: Pérez-Rodríguez, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The magnetic response of irreversible type-II superconductor slabs subjected to in-plane rotating magnetic field is investigated by applying the circular, elliptic, extended-elliptic, and rectangular flux-line-cutting critical-state models. Specifically, the models have been applied to explain experiments on a PbBi rotating disk in a fixed magnetic field ${\bm H}_a$, parallel to the flat surfaces. Here, we have exploited the equivalency of the experimental situation with that of a fixed disk under the action of a parallel magnetic field, rotating in the opposite sense. The effect of both the magnitude $H_a$ of the applied magnetic field and its angle of rotation $α_s $ upon the magnetization of the superconductor sample is analyzed. When $H_a$ is smaller than the penetration field $H_P$, the magnetization components, parallel and perpendicular to ${\bm H_a}$, oscillate with increasing the rotation angle. On the other hand, if the magnitude of the applied field, $H_a$, is larger than $H_P$, both magnetization components become constant functions of $α_s$ at large rotation angles. The evolution of the magnetic induction profiles inside the superconductor is also studied.
description: 12 pages, 29 figures
Starbucks
Creators: name: Christensen, Jørgen Riber
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2011

description: In Starbucks: Value-driven Consumerism as a Global Tale, through an analysis of a Starbucks campaign, Jørgen Riber Christensen uncovers new trends in marketing, i.e. a new type of market campaign characterized by ethical considerations from both the producer's and the consumers' side, at the same time the appeal to purchase goods with an ethical dimension has as agents the consumers through their use of new global fora such as YouTube, Facebook, Twitter and various blogs. "156 Countries Sing Together for the Starbucks Love Project" is an elegant expression of a global story where the global and national are united.
description: Akademisk kvarter | Academic Quarter, Global Tales | Globale fortællinger, Vol. 2
Chaos and commensurability in hole-antidot arrays with non-isotropic Fermi surface
Creators: name: Zitzlsperger, M.
name: Onderka, Roland
name: Suhrke, Michael
name: Rössler, Ulrich
name: Weiss, Dieter
name: Wegscheider, Werner
name: Winkler, R.
name: Hiroyama, Y.
name: Muraki, K.
Publisher: name: Universität Regensburg
Year: 2003
Subjects: subject: 530 Physik

description: Periodic antidot arrays imposed upon two-dimensional hole systems (2DHSs) display a striking dependence of the positive low-field magnetoresistance on the in-plane crystallographic orientation of the superlattice. An enhanced positive magnetoresistance can be ascribed to the 2DHSs non-circular Fermi surface which stabilizes chaotic trajectories for specific crystallographic directions. The effect provides a first example of the role of non-spherical Fermi surfaces on the classical chaotic dynamics of charge carriers. Transport calculations taking into account both the classical chaotic motion of the holes in antidot lattices and the warped Fermi contour confirm this picture.
SDF-1 expression is elevated in chronic human renal allograft rejection
Creators: name: Hoffmann, Ute
name: Banas, Bernhard
name: Krüger, Bernd
name: Banas, Miriam
name: Bergler, Tobias
name: Böger, Carsten
name: Kammerl, Martin
name: Obed, Aiman
name: Rümmele, Petra
name: Segerer, Stephan
name: Riegger, Günter A. J.
name: Krämer, Bernhard K.
Publisher: name: Universität Regensburg
Year: 2006
Subjects: subject: human renal allograft rejection; immunohistochemistry; SDF-1
subject: 610 Medizin

description: The exact mechanism of acute and chronic allograft rejection still remains unclear. The chemokine SDF-1 as mediator of allograft rejection has been under intensive investigation in liver, cardiac and bone marrow transplantation, whereas in renal transplantation, there are no reports about SDF-1 to date. This study was performed to evaluate if SDF-1 might also play an important role in human renal graft biopsies. One hundred and ninety formalin-fixed, paraffin-embedded renal allograft biopsies were included in the analysis from patients with normal renal graft morphology (according to Banff 97 classification grade 1, n = 84), with acute interstitial rejection (Banff grade 4 type I, n = 10), with acute vascular rejection (Banff grade 4 type II, n = 21), with chronic allograft nephropathy (CAN, Banff grade 5, n = 23), and without rejection but with various other lesions (Banff grade 6, n = 42). SDF-1 was localized by immunohistochemistry. In biopsies with CAN, SDF-1 expression was significantly elevated in interstitial infiltrates and infiltrating neointimal cells of arteries compared with biopsies with normal renal graft morphology. This is the first study describing a role of SDF-1 in human renal allograft rejection. We were able to demonstrate in a large number of biopsies an upregulation of SDF-1 in patients with CAN. Whether SDF-1 has pro-inflammatory or protective properties in this setting has to be evaluated in further trials.
Superconducting Order Parameter for the Even-denominator Fractional Quantum Hall Effect
Creators: name: Lu, Hantao
name: Sarma, Sankar Das
name: Park, Kwon
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: One of the most intriguing phenomena in nature is the fractional quantum Hall effect (FQHE) observed in the half-filled second Landau level which, arising in even-denominator filling factors, $ν=5/2$ and $7/2$, is completely different from other FQHEs in its origin, all of which, except for those two filling factors, occur in odd-denominator fractions. Usually formulated in terms of a trial wave function called the Moore-Read Pfaffian wave function, current leading theories attribute the origin of the 5/2 FQHE to the formation of Cooper pairs, not of electron, but of the true quasi-particle of the system known as composite fermion. The nature of superconductivity resulting from such Cooper pairing is particularly puzzling in the sense that it apparently coexists with strong magnetic fields, which poses an interesting dilemma since the Meissner effect is {\it the} most important defining property of superconductivity. This apparent dilemma is resolved by the fact that composite fermions do not respond to external magnetic field at even-denominator filling factors. To provide direct evidence that it is composite fermions that actually form the superconducting condensate, here, we develop a numerically exact method of creating a Cooper pair of composite fermions and explicitly compute the superconducting order parameter as a function of real space coordinates. As results, in addition to direct evidence for superconductivity, we obtain quantitative predictions for superconducting coherence length. Obtaining such theoretical predictions can serve as an important step toward fault-tolerant topological quantum computation.
Surviving State-Led Disaster: The Legacies of Hillsborough
Creators: name: Day, Sally
name: Stanley, Elizabeth
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2022
Subjects: subject: 160699 Political Science not elsewhere classified
subject: FOS: Political science
subject: 160299 Criminology not elsewhere classified
subject: FOS: Law
subject: Law

description: No description supplied
Statistical inference of transmission fidelity of DNA methylation patterns over somatic cell divisions in mammals
Creators: name: Fu, Audrey Qiuyan
name: Genereux, Diane P.
name: Stöger, Reinhard
name: Laird, Charles D.
name: Stephens, Matthew
Publisher: name: arXiv
Year: 2010
Subjects: subject: Applications (stat.AP)
subject: Genomics (q-bio.GN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: We develop Bayesian inference methods for a recently-emerging type of epigenetic data to study the transmission fidelity of DNA methylation patterns over cell divisions. The data consist of parent-daughter double-stranded DNA methylation patterns with each pattern coming from a single cell and represented as an unordered pair of binary strings. The data are technically difficult and time-consuming to collect, putting a premium on an efficient inference method. Our aim is to estimate rates for the maintenance and de novo methylation events that gave rise to the observed patterns, while accounting for measurement error. We model data at multiple sites jointly, thus using whole-strand information, and considerably reduce confounding between parameters. We also adopt a hierarchical structure that allows for variation in rates across sites without an explosion in the effective number of parameters. Our context-specific priors capture the expected stationarity, or near-stationarity, of the stochastic process that generated the data analyzed here. This expected stationarity is shown to greatly increase the precision of the estimation. Applying our model to a data set collected at the human FMR1 locus, we find that measurement errors, generally ignored in similar studies, occur at a nontrivial rate (inappropriate bisulfite conversion error: 1.6$%$ with 80$%$ CI: 0.9--2.3$%$). Accounting for these errors has a substantial impact on estimates of key biological parameters. The estimated average failure of maintenance rate and daughter de novo rate decline from 0.04 to 0.024 and from 0.14 to 0.07, respectively, when errors are accounted for. Our results also provide evidence that de novo events may occur on both parent and daughter strands: the median parent and daughter de novo rates are 0.08 (80$%$ CI: 0.04--0.13) and 0.07 (80$%$ CI: 0.04--0.11), respectively.
description: Published in at http://dx.doi.org/10.1214/09-AOAS297 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Gap solitons under competing local and nonlocal nonlinearities
Creators: name: Kuo, Kuan-Hsien
name: Lin, YuanYao
name: Lee, Ray-Kuang
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We analyze the existence, bifurcations, and shape transformations of one-dimensional gap solitons (GSs) in the first finite bandgap induced by a periodic potential built into materials with local self-focusing and nonlocal self-defocusing nonlinearities. Originally stable on-site GS modes become unstable near the upper edge of the bandgap with the introduction of the nonlocal self-defocusing nonlinearity with a small nonlocality radius. Unstable off-site GSs bifurcate into a new branch featuring single-humped, double-humped, and flat-top modes due to the competition between local and nonlocal nonlinearities. The mechanism underlying the complex bifurcation pattern and cutoff effects (termination of some bifurcation branches) is illustrated in terms of the shape transformation under the action of the varying degree of the nonlocality. The results of this work suggest a possibility of optical-signal processing by means of the competing nonlocal and local nonlinearities.
description: 8 pages, 9 figures; to be appeared in Phys. Rev. A
A Table-top Blast Driven Shock Tube
Creators: name: Courtney, Michael
name: Courtney, Amy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Medical Physics (physics.med-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The prevalence of blast-induced traumatic brain injury in conflicts in Iraq and Afghanistan has motivated laboratory scale experiments on biomedical effects of blast waves and studies of blast wave transmission properties of various materials in hopes of improving armor design to mitigate these injuries. This paper describes the design and performance of a table-top shock tube that is more convenient and widely accessible than traditional compression driven and blast driven shock tubes. The design is simple: it is an explosive driven shock tube employing a rifle primer which explodes when impacted by the firing pin. The firearm barrel acts as the shock tube, and the shock wave emerges from the muzzle. The small size of this shock tube can facilitate localized application of a blast wave to a subject, tissue, or material under test.
Hamid Rezaei Yazdi, Arshavez Mozafari (eds.). Persian Literature and Modernity
Creators: name: Fomeshi, Behnam
Publisher: name: figshare
Year: 2022
Subjects: subject: 200523 Middle Eastern Literature
subject: FOS: Languages and literature

description: The volume considers the relation between modernity and tradition in Persian literature as one of continuity, rather than as a break. “Assuming the logic of alternative modernities, this volume prioritises the particularity of Iranian modernity” (4). “Covering literary experiments from the twelfth to the twentieth centuries” (i), it places “the introduction of European works” “alongside a whole series of other determinants that shaped the modern literary imaginary” (5). It consists of an introductory chapter, followed by seven chapters and an index.
Expression of cyclooxygenase-1 and cyclooxygenase-2 in human renal allograft rejection-- a prospective study
Creators: name: Hoffmann, Ute
name: Banas, Bernhard
name: Krüger, Bernd
name: Pietrzyk, Miriam
name: Obed, Aiman
name: Segerer, Stephan
name: Kammerl, Martin
name: Rümmele, Petra
name: Riegger, Günter A. J.
name: Krämer, Bernhard K.
Publisher: name: Universität Regensburg
Year: 2006
Subjects: subject: cyclooxygenases-1; cyclooxygenases-2; human renal allograft rejection; immunohistochemistry
subject: 610 Medizin

description: Cyclooxygenases (COX) are known to be involved in inflammatory kidney diseases. However, there are no data available about the expression of COX-1 and only preliminary reports about the expression of COX-2 in biopsies of patients undergoing acute renal allograft rejection. We conducted this prospective study to analyze the expression, distribution, and cellular localization of COX-1 and -2 and thus to elucidate the role of COX in human kidney transplantation. One hundred forty-four biopsies were included from patients without rejection and unaltered morphology (n = 60), with acute interstitial rejection (n = 7), with acute vascular rejection (n = 21), with chronic allograft nephropathy (n = 16), without rejection but with various other lesions (n = 40). COX-1 and -2 expression was localized in each biopsy by immunohistochemistry. We found a highly significant up-regulation of COX-1 in vessels and in infiltrating interstitial cells of patients with acute allograft rejection compared with biopsies with well-preserved tissue. Also, COX-2 expression was significantly elevated in infiltrating interstitial cells of biopsies with acute rejection. This is the first prospective study demonstrating a significant induction of both COX-1 and -2 in human allograft biopsies with acute rejection after renal transplantation.
Parametric amplification of matter waves in dipolar spinor Bose-Einstein condensates
Creators: name: Deuretzbacher, F.
name: Gebreyesus, G.
name: Topic, O.
name: Scherer, M.
name: Lücke, B.
name: Ertmer, W.
name: Arlt, J.
name: Klempt, C.
name: Santos, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Spin-changing collisions may lead under proper conditions to the parametric amplification of matter waves in spinor Bose-Einstein condensates. Magnetic dipole-dipole interactions, although typically very weak in alkaline atoms, are shown to play a very relevant role in the amplification process. We show that these interactions may lead to a strong dependence of the amplification dynamics on the angle between the trap axis and the magnetic-field orientation. We analyze as well the important role played by magnetic-field gradients, which modify also strongly the amplification process. Magnetic-field gradients must be hence carefully controlled in future experiments, in order to observe clearly the effects of the dipolar interactions in the amplification dynamics.
Discussing "The tale of the Heike" in the Edo period : didactic commentaries as guides to wise rule for warrior-officials
Creators: name: Lushchenko, Alexey
Publisher: name: University of British Columbia
Year: 2018

description: In the premodern period, the Tale of the Heike (thirteenth century CE) was regarded either as a source for popular entertainment, such as musical and performing arts, or a historical text used for scholarly purposes. Most studies on the Tale of the Heike’s reception have focused on the work’s literary and artistic side, while scholarly reception has remained neglected. This dissertation explores the use of the Tale of the Heike by seventeenth-century scholars of “military studies” (heigaku or hyōgaku), who compiled treatises and commentaries (gunsho) on leadership, statecraft, history, and ethics aimed at domain lords and warrior-officials of different levels. This study focuses on the category of evaluative commentaries (hyōban) on medieval texts that combined critical discussion, admonition of rulers, and plausible “secrets” in order to caution against mistakes and explain proper leadership. I argue that the commentary Heike monogatari hyōban hidenshō (1650) reinterpreted the courtly and Buddhist content of the Tale of the Heike in terms of pragmatic leadership and ethics relevant to warrior-officials of the Edo period (1603-1868), and that this commentarial appropriation brought the Tale of the Heike into the sphere of warrior-officials’ scholarship and cultivation. The dissertation begins with a detailed overview of the understudied field of military studies in premodern East Asia and Japan. Based on an analysis of primary sources, I then discuss the content and commentarial approaches of evaluative commentary on the Tale of the Heike, its readership and circulation, as well as related texts. The study concludes with a comparative analysis which situates the commentary within the Japanese discourse of historical discussion and admonition, and also places it in the category of didactic guides to statecraft that are found in different cultures and are known as “mirrors for princes.” This study reveals a new facet of the Tale of the Heike’s reception centered on didactic commentarial works influenced by military studies, which constituted an important current in premodern Japanese intellectual history that shaped perceptions of state, society, leadership, and identity of warrior-officials throughout the Edo period.
The Nature of Starbursts: I. The Star Formation Histories of Eighteen Nearby Starburst Dwarf Galaxies
Creators: name: McQuinn, Kristen B. W.
name: Skillman, Evan D.
name: Cannon, John M.
name: Dalcanton, Julianne
name: Dolphin, Andrew
name: Hidalgo-Rodríguez, Sebastian
name: Holtzman, Jon
name: Stark, David
name: Weisz, Daniel
name: Williams, Benjamin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use archival HST observations of resolved stellar populations to derive the star formation histories (SFHs) of 18 nearby starburst dwarf galaxies. In this first paper we present the observations, color-magnitude diagrams, and the SFHs of the 18 starburst galaxies, based on a homogeneous approach to the data reduction, differential extinction, and treatment of photometric completeness. We adopt a star formation rate (SFR) threshold normalized to the average SFR of the individual system as a metric for classifying starbursts in SFHs derived from resolved stellar populations. This choice facilitates finding not only currently bursting galaxies but also "fossil" bursts increasing the sample size of starburst galaxies in the nearby (D<8 Mpc) universe. Thirteen of the eighteen galaxies are experiencing ongoing bursts and five galaxies show fossil bursts. From our reconstructed SFHs, it is evident that the elevated SFRs of a burst are sustained for hundreds of Myr with variations on small timescales. A long >100 Myr temporal baseline is thus fundamental to any starburst definition or identification method. The longer lived bursts rule out rapid "self-quenching" of starbursts on global scales. The bursting galaxies' gas consumption timescales are shorter than the Hubble time for all but one galaxy confirming the short-lived nature of starbursts based on fuel limitations. Additionally, we find the strength of the Hα emission usually correlates with the CMD based SFR during the last 4-10 Myr. However, in four cases, the Hα emission is significantly less than what is expected for models of starbursts; the discrepancy is due to the SFR changing on timescales of a few Myr. The inherently short timescale of the Hα emission limits identifying galaxies as starbursts based on the current characteristics which may or may not be representative of the recent SFH of a galaxy.
description: 53 pages, 11 figures
Cyberoception: Finding a Painlessly-Measurable New Sense in the Cyberworld Towards Emotion-Awareness in Computing
Creators: name: Okoshi, Tadashi
name: Gao, Zexiong
name: Zhen, Tan Yi
name: Karasawa, Takumi
name: Miki, Takeshi
name: Sasaki, Wataru
name: Balan, Rajesh K.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In Affective computing, recognizing users' emotions accurately is the basis of affective human-computer interaction. Understanding users' interoception contributes to a better understanding of individually different emotional abilities, which is essential for achieving inter-individually accurate emotion estimation. However, existing interoception measurement methods, such as the heart rate discrimination task, have several limitations, including their dependence on a well-controlled laboratory environment and precision apparatus, making monitoring users' interoception challenging. This study aims to determine other forms of data that can explain users' interoceptive or similar states in their real-world lives and propose a novel hypothetical concept "cyberoception," a new sense (1) which has properties similar to interoception in terms of the correlation with other emotion-related abilities, and (2) which can be measured only by the sensors embedded inside commodity smartphone devices in users' daily lives. Results from a 10-day-long in-lab/in-the-wild hybrid experiment reveal a specific cyberoception type "Turn On" (users' subjective sensory perception about the frequency of turning-on behavior on their smartphones), significantly related to participants' emotional valence. We anticipate that cyberoception to serve as a fundamental building block for developing more "emotion-aware", user-friendly applications and services.
description: Accepted by ACM CHI2025
Six years of XMM-Newton observations of NGC 1313 X-1 and X-2
Creators: name: Pintore, Fabio
name: Zampieri, Luca
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a systematic analysis of the X-ray spectra of NGC 1313 X-1 and NGC 1313 X-2, using six years of XMM-Newton observations (17 observations). We fitted the continuum with a Comptonization model plus a multicolor blackbody disc, that describes the effects of an accretion disc plus an optically thick corona. We checked the consistency of this spectral model on the basis of the variability patterns of its spectral parameters. We found that the two sources show different spectral states. We tentatively interpret the observed behaviour of NGC 1313 X-1 within the framework of super-Eddington accretion and that of NGC 1313 X-2 within the framework of near Eddington accretion. We also attempted to determine the chemical abundances in the local environment of NGC 1313 X-1 and X-2, analyzing the RGS spectra of the longest observation available (122 ksec). The results appear to indicate solar metallicity for the local environment of NGC 1313 X-1 and sub-solar metallicity for NGC 1313 X-2.
description: 5 pages, 6 figures. Accepted for publication in the Astronomische Nachrichten (Astronomical Notes), to appear in the proceedings of the conference "Ultra-Luminous X-ray sources and Middle Weight Black Holes" (Madrid, May 24-26, 2010)
Some integral inequalities on time scales
Creators: name: Yin, Li
name: Qi, Feng
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 26D15, 26E70, Secondary 93C70

description: In this paper, some new integral inequalities on time scales are presented by using elementarily analytic methods in calculus of time scales.
description: 8 pages
The B3-VLA CSS sample. VIII: New optical identifications from the Sloan Digital Sky Survey. The ultraviolet-optical spectral energy distribution of the young radio sources
Creators: name: Fanti, C.
name: Fanti, R.
name: Zanichelli, A.
name: Dallacasa, D.
name: Stanghellini, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Compact steep-spectrum radio sources and giga-hertz peaked spectrum radio sources (CSS/GPS) are generally considered to be mostly young radio sources. In recent years we studied at many wavelengths a sample of these objects selected from the B3-VLA catalog: the B3-VLA CSS sample. Only ~ 60 % of the sources were optically identified. We aim to increase the number of optical identifications and study the properties of the host galaxies of young radio sources. We cross-correlated the CSS B3-VLA sample with the Sloan Digital Sky Survey (SDSS), DR7, and complemented the SDSS photometry with available GALEX (DR 4/5 and 6) and near-IR data from UKIRT and 2MASS. We obtained new identifications and photometric redshifts for eight faint galaxies and for one quasar and two quasar candidates. Overall we have 27 galaxies with SDSS photometry in five bands, for which we derived the ultraviolet-optical spectral energy distribution (UV-O-SED). We extended our investigation to additional CSS/GPS selected from the literature. Most of the galaxies show an excess of ultra-violet (UV) radiation compared with the UV-O-SED of local radio-quiet ellipticals. We found a strong dependence of the UV excess on redshift and analyzed it assuming that it is generated either from the nucleus (hidden quasar) or from a young stellar population (YSP). We also compare the UV-O-SEDs of our CSS/GPS sources with those of a selection of large size (LSO) powerful radio sources from the literature. If the major process of the UV excess is caused by a YSP, our conclusion is that it is the result of the merger process that also triggered the onset of the radio source with some time delay. We do not see evidence for a major contribution from a YSP triggered by the radio sources itself.
description: 38 pages, 21 figures, 6 tables. Accepted for publication on A&A
JERRI Preliminary comparision of RTOs
Creators: name: Joignant, Anne
name: Teufel, Benjamin
Publisher: name: Fraunhofer-Gesellschaft
Year: 2019
Subjects: subject: Responsible Research and Innovation (RRI)
subject: RTO
subject: State of the art RRI practices
subject: DDC::300 Sozialwissenschaften

description: This data set contains the results from interviews with researchers from several European Research and Technology Organisations (RTOs). The interviews were conducted within the EU JERRI project and are analyzing existing good RRI practices at several RTOs.
Fluctuations of a long, semiflexible polymer in a narrow channel
Creators: name: Burkhardt, Theodore W.
name: Yang, Yingzi
name: Gompper, Gerhard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider an inextensible, semiflexible polymer or worm-like chain, with persistence length $P$ and contour length $L$, fluctuating in a cylindrical channel of diameter $D$. In the regime $D\ll P\ll L$, corresponding to a long, tightly confined polymer, the average length of the channel $$ occupied by the polymer and the mean square deviation from the average vary as $=[1-α_\circ(D/P)^{2/3}]L$ and $=β_\circ(D^2/P)L$, respectively, where $α_\circ$ and $β_\circ$ are dimensionless amplitudes. In earlier work we determined $α_\circ$ and the analogous amplitude $α_\Box$ for a channel with a rectangular cross section from simulations of very long chains. In this paper we estimate $β_\circ$ and $β_\Box$ from the simulations. The estimates are compared with exact analytical results for a semiflexible polymer confined in the transverse direction by a parabolic potential instead of a channel and with a recent experiment. For the parabolic confining potential we also obtain a simple analytic result for the distribution of $R_\parallel$ or radial distribution function, which is asymptotically exact for large $L$ and has the skewed shape seen experimentally.
description: 21 pages, including 4 figures
Substitutional and interstitial impurity p-type doping of thermoelectric Mg2Si: a theoretical study
Creators: name: Hirayama, Naomi
name: Iida, Tsutomu
name: Sakamoto, Mariko
name: Nishio, Keishi
name: Hamada, Noriaki
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: The narrow-gap magnesium silicide semiconductor Mg2Si is a promising mid-temperature (600–900 K) thermoelectric material. It intrinsically possesses n-type conductivity, and n-type dopants are generally used for improving its thermoelectric performance; however, the synthesis of p-type Mg2Si is relatively difficult. In this work, the hole doping of Mg2Si with various impurity atoms is investigated by performing first principles calculations. It is found that the Ag-doped systems exhibit comparable formation energies ΔE calculated for different impurity sites (Mg, Si, and interstitial 4b ones), which may explain the experimental instability of their p-type conductivity. A similar phenomenon is observed for the systems incorporating alkali metals (Li, Na, and K) since their ΔE values determined for Mg (p-type) and 4b (n-type) sites are very close. Among boron group elements (Ga and B), Ga is found to be favorable for hole doping because it exhibits relatively small ΔE values for Si (p-type) sites. Furthermore, the interstitial insertion of Cl and F atoms into the crystal lattice leads to hole doping because of their high electronegativity.
JERRI state of the art interviews
Creators: name: Teufel, Benjamin
name: Nauta, Joram
Publisher: name: Fraunhofer-Gesellschaft
Year: 2019
Subjects: subject: Responsible Research and Innovation (RRI)
subject: State of the art RRI practices
subject: DDC::300 Sozialwissenschaften

description: The data has been generated by Fraunhofer ISI and TNO by carrying out and recording expert interviews about existing RRI practices and ways to further institutionalize RRI at both organisations.
The fundamental parameters of the roAp star $γ$ Equulei
Creators: name: Perraut, K.
name: Brandão, I.
name: Mourard, D.
name: Cunha, M.
name: Bério, Ph.
name: Bonneau, D.
name: Chesneau, O.
name: Clausse, J. M.
name: Delaa, O.
name: Marcotto, A.
name: Roussel, A.
name: Spang, A.
name: Stee, Ph.
name: Tallon-Bosc, I.
name: McAlister, H.
name: Brummelaar, T. ten
name: Sturmann, J.
name: Sturmann, L.
name: Turner, N.
name: Farrington, C.
name: Goldfinger, P. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Physical processes working in the stellar interiors as well as the evolution of stars depend on some fundamental stellar properties, such as mass, radius, luminosity, and chemical abundances. A classical way to test stellar interior models is to compare the predicted and observed location of a star on theoretical evolutionary tracks in a H-R diagram. This requires the best possible determinations of stellar mass, radius, luminosity and abundances. To derive its fundamental parameters, we observed the well-known rapidly oscillating Ap star, $γ$ Equ, using the visible spectro-interferometer VEGA installed on the optical CHARA array. We computed the calibrated squared visibility and derived the limb-darkened diameter. We used the whole energy flux distribution, the parallax and this angular diameter to determine the luminosity and the effective temperature of the star. We obtained a limb-darkened angular diameter of 0.564~$\pm$~0.017~mas and deduced a radius of $R$~=~2.20~$\pm$~0.12~${\rm R_{\odot}}$. Without considering the multiple nature of the system, we derived a bolometric flux of $(3.12\pm 0.21)\times 10^{-7}$ erg~cm$^{-2}$~s$^{-1}$ and an effective temperature of 7364~$\pm$~235~K, which is below the effective temperature that has been previously determined. Under the same conditions we found a luminosity of $L$~=~12.8~$\pm$~1.4~${\rm L_{\odot}}$. When the contribution of the closest companion to the bolometric flux is considered, we found that the effective temperature and luminosity of the primary star can be, respectively, up to $\sim$~100~K and up to $\sim$~0.8~L$_\odot$ smaller than the values mentioned above.These new values of the radius and effective temperature should bring further constraints on the asteroseismic modelling of the star.
description: Accepted by A&A
Verdensklasse eller blålys
Creators: name: Auken, Sune
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2011

description: Sune Auken's contribution to this volume, World Class or Will-o'-the-Wisp, discusses a new global narrative about the universities. A narrative that has become more and more worldwide and makes itself prevalent, and whose purpose is to apply the logics of business institutions to the universities in order to measure them better and to make them more useful. Auken questions the value of competition criteria derived from business organizations (competition between organizations) for the universities that have a different and complicated structure and other goals with their work. Moreover, he uncovers the incongruence and weaknesses behind the international university rankings. The article shows that despite the fact that universities today are permeated in management ideology they can still articulate a critique of the problematic aspects behind the process.
description: Akademisk kvarter | Academic Quarter, Global Tales | Globale fortællinger, Vol. 2
Complex-band structure: a method to determine the off-resonant electron transport in oligomers
Creators: name: Fagas, Giorgos
name: Kambili, Agapi
name: Elstner, Marcus
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: 530 Physik

description: We validate that off-resonant electron transport across {\it ultra-short} oligomer molecular junctions is characterised by a conductance which decays exponentially with length, and we discuss a method to determine the damping factor via the energy spectrum of a periodic structure as a function of complex wavevector. An exact mapping to the complex wavevector is demonstrated by first-principle-based calculations of: (a) the conductance of molecular junctions of phenyl- ethynylene wires covalently bonded to graphitic ribbons as a function of the bridge length, and (b) the complex-band structure of poly-phenyl- ethynylene.
A spectral comparison of (379) Huenna and its satellite
Creators: name: DeMeo, Francesca
name: Carry, Benoit
name: Marchis, Franck
name: Birlan, Mirel
name: Binzel, Richard P.
name: Bus, Schelte J.
name: Descamps, Pascal
name: Nedelcu, Alin
name: Busch, Michael
name: Bouy, Herve
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present near-infrared spectral measurements of Themis family asteroid (379) Huenna (D~98 km) and its 6 km satellite using SpeX on the NASA IRTF. The companion was farther than 1.5" from the primary at the time of observations and was approximately 5 magnitudes dimmer. We describe a method for separating and extracting the signal of a companion asteroid when the signal is not entirely resolved from the primary. The spectrum of (379) Huenna has a broad, shallow feature near 1 μm and a low slope, characteristic of C-type asteroids. The secondary's spectrum is consistent with the taxonomic classification of C-complex or X-complex. The quality of the data was not sufficient to identify any subtle feature in the secondary's spectrum.
description: 6 pages, 4 figures, 2 tables - Accepted for publication in Icarus
Energy dependence of hard bremsstrahlung production in proton-proton collisions in the Delta(1232) region
Creators: name: Tsirkov, D.
name: Komarov, V.
name: Azaryan, T.
name: Chiladze, D.
name: Dymov, S.
name: Dzyuba, A.
name: Hartmann, M.
name: Kacharava, A.
name: Khoukaz, A.
name: Kulikov, A.
name: Kurbatov, V.
name: Macharashvili, G.
name: Merzliakov, S.
name: Mielke, M.
name: Mikirtychiants, S.
name: Nekipelov, M.
name: Rathmann, F.
name: Serdyuk, V.
name: Stroeher, H.
name: Uzikov, Yu.
name: Valdau, Yu.
name: Wilkin, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Hard bremsstrahlung production in proton-proton collisions has been studied with the ANKE spectrometer at COSY-Juelich in the energy range of 353-800 MeV by detecting the final proton pair {pp}_s from the pp -> {pp}_s reaction with very low excitation energy. Differential cross sections were measured at small diproton c.m. angles from 0 to 20 degrees and the average over this angular interval reveals a broad peak at a beam energy around 650 MeV with a FWHM of about 220 MeV, suggesting the influence of Delta(1232)N intermediate states. Comparison with deuteron photodisintegration shows that the cross section for diproton production is up to two orders of magnitude smaller, due largely to differences in the selection rules.
description: 14 pages, 5 figures
Microscopic approach to spin dynamics: meaning of spin relaxation times
Creators: name: Lechner, Christian
name: Rössler, Ulrich
Publisher: name: Universität Regensburg
Year: 2005
Subjects: subject: 530 Physik

description: We present an approach to spin dynamics by extending the optical Bloch equation s for the driven two-level system to derive microscopic expressions for the tra nsverse and longitudinal spin relaxation times. This is done for the 6-level sy stem of electron and hole subband states in a semiconductor or a semiconductor quantum structure to account for the degrees-of-freedom of the carrier spin and the polarization of the exciting light and includes the scattering between car riers and lattice vibrations on a microscopic level. For the subsystem of the s pin-split electron subbands we treat the electron-phonon interaction in second order and derive a set of equations of motion for the 2 x 2 spin-density matrix which describes the electron spin dynamics and contains microscopic exp ressions for the longitudinal (T$_{1}$) and the transverse (T$_{2}$) spin relaxatio n times. Their meaning will be discussed in relation to experimental investigat ions of these quantities.