cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
M/M/1 queue in two alternating environments and its heavy traffic approximation
Creators: name: Di Crescenzo, Antonio
name: Giorno, Virginia
name: Kumar, Balasubramanian Krishna
name: Nobile, Amelia G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K25, 60K37, 60J60, 60J70

description: We investigate an M/M/1 queue operating in two switching environments, where the switch is governed by a two-state time-homogeneous Markov chain. This model allows to describe a system that is subject to regular operating phases alternating with anomalous working phases or random repairing periods. We first obtain the steady-state distribution of the process in terms of a generalized mixture of two geometric distributions. In the special case when only one kind of switch is allowed, we analyze the transient distribution, and investigate the busy period problem. The analysis is also performed by means of a suitable heavy-traffic approximation which leads to a continuous random process. Its distribution satisfies a partial differential equation with randomly alternating infinitesimal moments. For the approximating process we determine the steady-state distribution, the transient distribution and a first-passage-time density.
description: 31 pages, 18 figures
Renate Schipke, Das Buch in der Spätantike. Herstellung, Form, Ausstattung und Verbreitung in der westlichen Reichshälfte des Imperium Romanum
Creators: name: Lindermann, Jens-Olaf
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Renate Schipke, Das Buch in der Spätantike. Herstellung, Form, Ausstattung und Verbreitung in der westlichen Reichshälfte des Imperium Romanum. Wiesbaden: Reichert 2013, 280 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
Delocalization of quantum information in long-range interacting systems
Creators: name: Wanisch, Darvin
name: Fritzsche, Stephan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the delocalization of quantum information in the nonequilibrium dynamics of the $XY$ spin chain with asymptotically decaying interactions $\sim 1/r^α$. As a figure of merit, we employ the tripartite mutual information (TMI), whose sign indicates if quantum information is predominantly shared globally. Interestingly, the sign of the TMI distinguishes regimes of the exponent $α$ that are known for different behaviour of information propagation. While an effective causal region bounds the propagation of information, if interactions decay sufficiently fast, this information is mainly delocalized, which leads to the necessity of global measurements. Furthermore, the results indicate that mutual information is monogamous for all possible partitionings in this case, implying that quantum entanglement is the dominant correlation. If interactions decay sufficiently slow, though information can propagate (quasi-)instantaneously, it is mainly accessible by local measurements at early times. Furthermore, it takes some finite time until correlations start to become monogamous, which suggests that apart from entanglement, other nonmonogamous correlations are sizeable at early times. Our findings give new insights into the dynamics, and structure of quantum information in many-body systems with long-range interactions, and might get verified on state-of-the-art experimental platforms.
description: 7 pages, 4 figures
AMS :: ATX February 2020 Blog Archive
Creators: name: Department Of American Studies
Publisher: name: American Studies
Year: 2020
Subjects: American Studies
Twitter

description: Contents: Tomorrow (2/4): “Sisters in the Struggle” Film Screening & Conversation -- Thursday, February 6: “What’s Up With Disney and Latinidad?” by Dr. Angharad Valdivia -- Monday, February 10: Public Lecture by Dr. Iván Chaar López, “Automating Control: Race, Technology and Border Making” -- UT AMS Celebrates Dr. Lauren Gutterman’s “Her Neighbor’s Wife” -- This Friday (2/14): Public Lecture by Dr. Erin McElroy, “Property as Technology: Mediating Race, Space, Data, and Displacement” -- Tomorrow (2/14): Feminist Reflections about “El Violador Eres Tú” -- Monday, February 17: Public Lecture by Dr. Maria Cotera, “Haunting the Chicano Photographic: Nancy De Los Santos’s Disruptive Visualities” -- This Friday (2/21): Dr. Julia Mickenberg and Dr. Lauren Gutterman to Present at Humanities Institute Faculty Fellows Symposium -- Wednesday, February 19: Public Lecture by Dr. Albert Laguna, “On the Comedy of Race: Literature, Popular Culture, and the Politics of Retrenchment” -- Thursday, February 20: Public Lecture by Dr. Keeanga-Yamahtta Taylor, “Race for Profit: How Banks and the Real Estate Industry Undermined Black Homeownership” -- Tomorrow (2/21): Public Lecture by Dr. Melanie Walsh, “Networks of Literary Protest: Mapping Mango Street’s Remediated Route” -- Tuesday, February 25: Public Lecture by Dr. Ashanté M. Reese, “The Carceral Life of Sugar: Plantations, Prisons, and the Contemporary Food System” -- Tomorrow (2/26): The Center for the Study of Race and Democracy Presents Sherrilyn Ifill -- Monday, March 2: Public Lecture by Dr. Louis Hyman, “Silicon Valley and the Rise of Insecure Work”
description: @AmStudies is a Twitter feed dedicated to representing the many activities and interests of the department of American Studies at The University of Texas at Austin. Together with the department’s blog, this feed exists to serve the AMS and Austin communities by acting as a hub for up-to-date information on events and opportunities at UT and beyond.
Hans Peter Obermayer, Deutsche Altertumswissenschaftler im amerikanischen Exil. Eine Rekonstruktion
Creators: name: Dräger, Paul
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Hans Peter Obermayer, Deutsche Altertumswissenschaftler im amerikanischen Exil. Eine Rekonstruktion. Berlin: De Gruyter 2014, XXVI + 750 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
AMS :: ATX March 2020 Blog Archive
Creators: name: Department Of American Studies
Publisher: name: American Studies
Year: 2020
Subjects: American Studies
Twitter

description: Contents: Tuesday, March 3: Public Talk by Dr. Shannon Speed, “Incarcerated Stories: Indigenous Women Migrants and Violence in the Settler-Capitalist State.” -- Book Talk (3/5): “A Black Woman’s History of the United States,” by Daina Ramey Berry and Kali Nicole Gross -- Five Questions with First-Years: The Hartlyn Haynes Edition -- Tomorrow (3/13): Dr. Edmund T. Gordon on “UT’s Raced Geography”
description: @AmStudies is a Twitter feed dedicated to representing the many activities and interests of the department of American Studies at The University of Texas at Austin. Together with the department’s blog, this feed exists to serve the AMS and Austin communities by acting as a hub for up-to-date information on events and opportunities at UT and beyond.
Network-centric indicators for fragility in global financial indices
Creators: name: Samal, Areejit
name: Kumar, Sunil
name: Yadav, Yasharth
name: Chakraborti, Anirban
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: Over the last two decades, financial systems have been studied and analysed from the perspective of complex networks, where the nodes and edges in the network represent the various financial components and the strengths of correlations between them. Here, we adopt a similar network-based approach to analyse the daily closing prices of 69 global financial market indices across 65 countries over a period of 2000-2014. We study the correlations among the indices by constructing threshold networks superimposed over minimum spanning trees at different time frames. We investigate the effect of critical events in financial markets (crashes and bubbles) on the interactions among the indices by performing both static and dynamic analyses of the correlations. We compare and contrast the structures of these networks during periods of crashes and bubbles, with respect to the normal periods in the market. In addition, we study the temporal evolution of traditional market indicators, various global network measures and the recently developed edge-based curvature measures. We show that network-centric measures can be extremely useful in monitoring the fragility in the global financial market indices.
description: 32 pages, 18 figures, including supplementary material
Dressing a naked quasar: star formation and AGN feedback in HE0450-2958
Creators: name: Klamer, Ilana
name: Papadopoulos, Padelis
name: Ekers, Ron
name: Middelberg, Enno
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Australia Telescope Compact Array radio continuum observations of the quasar/galaxy system HE0450-2958. An asymetric triple linear morphology is observed, with the central radio component coincident with the quasar core and a second radio component associated with a companion galaxy at a projected distance of 7kpc from the quasar. The system obeys the far-infrared to radio continuum correlation, implying the radio emission is energetically dominated by star formation activity. However, there is undoubtedly some contribution to the overall radio emission from a low-luminosity AGN core and a pair of radio lobes. Long baseline radio interferometric observations of the quasar core place a 3sigma upper limit of 0.6mJy at 1400MHz on the AGN contribution to the quasar's radio emission; less than 30% of the total. The remaining 70% of the radio emission from the quasar is associated with star formation activity and provides the first direct evidence for the quasar's host galaxy. A re-anlaysis of the VLT spectroscopic data shows extended emission line regions aligned with the radio axis and extended on scales of ~20kpc. This is interpreted as evidence for jet-cloud interactions, similar to those observed in radio galaxies and Seyferts. The emission lines in the companion galaxy are consistent with radiative shocks and its spatial association with the eastern radio lobe implies large-scale jet-induced star formation has played a role in this galaxy's evolution.
description: accepted for publication in ApJ
AMS :: ATX April 2020 Blog Archive
Creators: name: Department Of American Studies
Publisher: name: American Studies
Year: 2020
Subjects: American Studies
Twitter

description: Contents: Tonight (4/15): Virtual Panel on Anti-Asian Racism and COVID-19 -- Tonight (4/17): E3W Review of Books Virtual Launch -- The End of Austin Publishes “Sheltering In a Weird Place: Notes from a Quarantined Austin”
description: @AmStudies is a Twitter feed dedicated to representing the many activities and interests of the department of American Studies at The University of Texas at Austin. Together with the department’s blog, this feed exists to serve the AMS and Austin communities by acting as a hub for up-to-date information on events and opportunities at UT and beyond.
Carola Jäggi, Ravenna. Kunst und Kultur einer spätantiken Residenz. Die Bauten und Mosaiken des 5. und 6. Jahrhunderts
Creators: name: Sonntag, Florian
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Carola Jäggi, Ravenna. Kunst und Kultur einer spätantiken Residenz. Die Bauten und Mosaiken des 5. und 6. Jahrhunderts. Regensburg: Schnell & Steiner Verlag 2013, 333 S., sowie zahlr. Ill., Kt., graph. Darst.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
Fast Computation of Voigt Functions via Fourier Transforms
Creators: name: Mendenhall, Marcus H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Atomic Physics (physics.atom-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: This work presents a method of computing Voigt functions and their derivatives, to high accuracy, on a uniform grid. It is based on an adaptation of Fourier-transform based convolution. The relative error of the result decreases as the fourth power of the computational effort. Because of its use of highly vectorizable operations for its core, it can be implemented very efficiently in scripting language environments which provide fast vector libraries. The availability of the derivatives makes it suitable as a function generator for non-linear fitting procedures.
description: 8 pages, 1 figure
AMS :: ATX May 2020 Blog Archive
Creators: name: Department Of American Studies
Publisher: name: American Studies
Year: 2020
Subjects: American Studies
Twitter

description: Contents: Five Questions with First-Years: An Interview with Cooper Weissman
description: @AmStudies is a Twitter feed dedicated to representing the many activities and interests of the department of American Studies at The University of Texas at Austin. Together with the department’s blog, this feed exists to serve the AMS and Austin communities by acting as a hub for up-to-date information on events and opportunities at UT and beyond.
Saturation of Spin-Polarized Current in Nanometer Scale Aluminum Grains
Creators: name: Wei, Y. G.
name: Malec, C. E.
name: Davidović, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We describe measurements of spin-polarized tunnelling via discrete energy levels of single Aluminum grains. In high resistance samples ($\sim GΩ$), the spin-polarized tunnelling current rapidly saturates as a function of the bias voltage. This indicates that spin-polarized current is carried only via the ground state and the few lowest in energy excited states of the grain. At the saturation voltage, the spin-relaxation rate $T_1^{-1}$ of the highest excited states is comparable to the electron tunnelling rate: $T_1^{-1}\approx 1.5\cdot 10^6 s^{-1}$ and $10^7s^{-1}$ in two samples. The ratio of $T_1^{-1}$ to the electron-phonon relaxation rate is in agreement with the Elliot-Yafet scaling, an evidence that spin-relaxation in Al grains is governed by the spin-orbit interaction.
description: 5 pages, 4 figures
Gerhard Thür (Hg.), Grabrituale. Tod und Jenseits in Frühgeschichte und Altertum
Creators: name: Agelidis, Soi
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Gerhard Thür (Hg.), Grabrituale. Tod und Jenseits in Frühgeschichte und Altertum. Akten der 3. Tagung des Zentrums Archäologie und Altertumswissenschaften an der Österreichischen Akademie der Wissenschaften, 21.-22. Mai 2010. Wien: Verlag der österreichischen Akademie der Wissenschaften 2014, 210 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
AMS :: ATX June 2020 Blog Archive
Creators: name: Department Of American Studies
Publisher: name: American Studies
Year: 2020
Subjects: American Studies
Twitter

description: Contents: New Episode of Dr. Lauren Gutterman’s “Sexing History” Podcast: “Love and Labor” -- UT AMS PhD Student Whitney S. May Published in Children’s Literature -- “Flu in the Arctic”: UT AMS PhD Student Coyote Shook Featured on Blog of the Society for Historians of the Gilded Age and Progressive Era
description: @AmStudies is a Twitter feed dedicated to representing the many activities and interests of the department of American Studies at The University of Texas at Austin. Together with the department’s blog, this feed exists to serve the AMS and Austin communities by acting as a hub for up-to-date information on events and opportunities at UT and beyond.
On the Eikonal Approximation in AdS Space
Creators: name: Brower, Richard C.
name: Strassler, Matthew J.
name: Tan, Chung-I
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore the eikonal approximation to graviton exchange in AdS_5 space, as relevant to scattering in gauge theories. We restrict ourselves to the regime where conformal invariance of the dual gauge theory holds, and to large 't Hooft coupling where the computation involves pure gravity. We give a heuristic argument, a direct loop computation, and a shock wave derivation. The scalar propagator in AdS_3 plays a key role, indicating that even at strong coupling, two-dimensional conformal invariance controls high-energy four-dimensional gauge-theory scattering.
description: 22 pages, 2 figures; published version: updated references and several clarifying remarks added
AMS :: ATX July 2020 Blog Archive
Creators: name: Department Of American Studies
Publisher: name: American Studies
Year: 2020
Subjects: American Studies
Twitter

description: Content: New Episode of Dr. Lauren Gutterman’s “Sexing History” Podcast: “The Pickup Artist”
description: @AmStudies is a Twitter feed dedicated to representing the many activities and interests of the department of American Studies at The University of Texas at Austin. Together with the department’s blog, this feed exists to serve the AMS and Austin communities by acting as a hub for up-to-date information on events and opportunities at UT and beyond.
Nicholas Horsfall, Virgil, Aeneid 6. A Commentary. Vol. 1: Introduction, Text and Translation, Vol. 2: Commentary and Appendices
Creators: name: Frisch, Magnus
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Nicholas Horsfall, Virgil, Aeneid 6. A Commentary. Vol. 1: Introduction, Text and Translation, Vol. 2: Commentary and Appendices. Berlin/Boston: De Gruyter Verlag 2013, XI + 706 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
Machine Learning Framework for Sensing and Modeling Interference in IoT Frequency Bands
Creators: name: Homssi, Bassel Al
name: Al-Hourani, Akram
name: Krusevac, Zarko
name: Rowe, Wayne S T
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Spectrum scarcity has surfaced as a prominent concern in wireless radio communications with the emergence of new technologies over the past few years. As a result, there is growing need for better understanding of the spectrum occupancy with newly emerging access technologies supporting the Internet of Things. In this paper, we present a framework to capture and model the traffic behavior of short-time spectrum occupancy for IoT applications in the shared bands to determine the existing interference. The proposed capturing method utilizes a software defined radio to monitor the short bursts of IoT transmissions by capturing the time series data which is converted to power spectral density to extract the observed occupancy. Furthermore, we propose the use of an unsupervised machine learning technique to enhance conventionally implemented energy detection methods. Our experimental results show that the temporal and frequency behavior of the spectrum can be well-captured using the combination of two models, namely, semi-Markov chains and a Poisson-distribution arrival rate. We conduct an extensive measurement campaign in different urban environments and incorporate the spatial effect on the IoT shared spectrum.
Light Elements in the Universe
Creators: name: Randich, Sofia
name: Magrini, Laura
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Due to their production sites, as well as to how they are processed and destroyed in stars, the light elements are excellent tools to investigate a number of crucial issues in modern astrophysics: from stellar structure and non-standard processes in stellar interiors to age dating of stars; from pre-main sequence evolution to the star formation histories of young clusters and associations and to multiple populations in globular clusters; from Big Bang nucleosynthesis to the formation and chemical enrichment history of the Milky Way Galaxy, just to cite some relevant examples. In this paper, we focus on lithium, beryllium, and boron and on carbon, nitrogen, and oxygen. LiBeB are rare elements, with negligible abundances with respect to hydrogen; on the contrary, CNO are among the most abundant elements in the Universe. Pioneering observations of light-element surface abundances in stars started almost 70 years ago and huge progress has been achieved since then. Indeed, for different reasons, precise measurements of LiBeB and CNO are difficult, even in our Sun; however, the advent of state-of-the-art ground- and space-based instrumentation has allowed the determination of high-quality abundances in stars of different type, belonging to different Galactic populations. Noticeably, the recent large spectroscopic surveys performed with multifiber spectrographs have yielded detailed and homogeneous information on the abundances of Li and CNO for statistically significant samples of stars; this has allowed us to obtain new results and insights and, at the same time, raise new questions and challenges. A complete understanding of the light-element patterns and evolution in the Universe has not been still achieved. Perspectives for further progress will open up soon thanks to the new generation instrumentation that is under development and will come online in the coming years.
description: Accepted review in Front. Astron. Space Sci., 09 March 2021
AMS :: ATX November 2019 Blog Archive
Creators: name: Department Of American Studies
Publisher: name: American Studies
Year: 2019
Subjects: American Studies
Twitter

description: Contents: ASA 2019: UT Austin Faculty and Graduate Student Presenters -- This Wednesday (11/13): “Indigeneity, the Land, and Storytelling” -- Five Questions with First-Years Continues: An Interview with Kameron Dunn -- This Thursday (11/21): Dr. Sayak Valencia Triana on “Capitalismo Gore” -- Tonight: Free Screening of “Harriet” and Conversation with Producer Debra Martin Chase
description: @AmStudies is a Twitter feed dedicated to representing the many activities and interests of the department of American Studies at The University of Texas at Austin. Together with the department’s blog, this feed exists to serve the AMS and Austin communities by acting as a hub for up-to-date information on events and opportunities at UT and beyond.
LHC Signals from Warped Extra Dimensions
Creators: name: Agashe, Kaustubh
name: Belyaev, Alexander
name: Krupovnickas, Tadas
name: Perez, Gilad
name: Virzi, Joseph
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study production of Kaluza-Klein gluons (KKG) at the Large Hadron Collider (LHC) in the framework of a warped extra dimension with the Standard Model (SM) fields propagating in the bulk. We show that the detection of KK gluon is challenging since its production is suppressed by small couplings to the proton's constituents. Moreover, the KK gluon decays mostly to top pairs due to an enhanced coupling and hence is broad. Nevertheless, we demonstrate that for m_{KKG} \lesssim 4 TeV, 100 fb^{-1} of data at the LHC can provide discovery of the KK gluon. We utilize a sizeable left-right polarization asymmetry from the KK gluon resonance to maximize the signal significance, and we explore the novel feature of extremely highly energetic "top-jets". We briefly discuss how the detection of electroweak gauge KK states (Z/W) faces a similar challenge since their leptonic decays (``golden'' modes) are suppressed. Our analysis suggests that other frameworks, for example little Higgs, which rely on UV completion via strong dynamics might face similar challenges, namely (1) Suppressed production rates for the new particles (such as Z'), due to their ``light-fermion-phobic'' nature, and (2) Difficulties in detection since the new particles are broad and decay predominantly to third generation quarks and longitudinal gauge bosons.
description: 11 pages and 6 figures
Tevatron constraint on the Kaluza-Klein gluon of the Bulk Randall-Sundrum model
Creators: name: Guchait, M.
name: Mahmoudi, F.
name: Sridhar, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Bulk Randall-Sundrum model, where all Standard Model particles except the Higgs are free to propagate in the bulk, predicts the existence of Kaluza-Klein (KK) modes of the gluon with a large branching into top-antitop pairs. We study the production of the lowest KK gluon mode at the Tevatron energy and use the data on the top cross-section from the Run II of Tevatron to put a bound on the mass of the KK gluon. The resulting bound of 800 GeV, while being much smaller than the constraints obtained on the KK gluon mass from flavour-changing neutral currents, is the first, direct collider bound which is independent of the specificities of the model.
description: 8 pages LaTeX, including 1 figure as a ps file
D2.3 Report on TSLs and WSLs in Cancer Biosensing Diagnostics
Creators: name: Knežević, Nikola
name: Radonic, Vasa
name: Peter, Ertl
Publisher: name: Zenodo
Year: 2024

description: The purpose of this document is to provide an overview of lectures and workshops that occurred during the training school event in topics related to cancer biosensing diagnostics, organized within the NANOFACTS project.
Bayesian Forecasts for Dark Matter Substructure Searches with Mock Pulsar Timing Data
Creators: name: Lee, Vincent S. H.
name: Taylor, Stephen R.
name: Trickle, Tanner
name: Zurek, Kathryn M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark matter substructure, such as primordial black holes (PBHs) and axion miniclusters, can induce phase shifts in pulsar timing arrays (PTAs) measurements due to gravitational effects. In order to gain a more realistic forecast for the detectability of such models of dark matter with PTAs, we propose a Bayesian inference framework to search for phase shifts generated by PBHs and perform the analysis on mock PTA data. For most PBH masses the constraints on the dark matter abundance agree with previous (frequentist) analyses (without mock data) to $\mathcal{O}(1)$ factors. This further motivates a dedicated search for PBHs (and dense small scale structures) in the mass range from $10^{-8}\,M_{\odot}$ to well above $10^2\,M_{\odot}$ with the Square Kilometer Array. Moreover, with a more optimistic set of timing parameters, future PTAs are predicted to constrain PBHs down to $10^{-11}\,M_{\odot}$. Lastly, we discuss the impact of backgrounds, such as Supermassive Black Hole Mergers, on detection prospects, suggesting a future program to separate a dark matter signal from other astrophysical sources.
description: 22 pages, 7 figures; v2: arguments revised, results and figures unchanged, matches journal version
Inverse cubic law of index fluctuation distribution in Indian markets
Creators: name: Pan, Raj Kumar
name: Sinha, Sitabhra
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: One of the principal statistical features characterizing the activity in financial markets is the distribution of fluctuations in market indicators such as the index. While the developed stock markets, e.g., the New York Stock Exchange (NYSE) have been found to show heavy-tailed return distribution with a characteristic power-law exponent, the universality of such behavior has been debated, particularly in regard to emerging markets. Here we investigate the distribution of several indices from the Indian financial market, one of the largest emerging markets in the world. We have used tick-by-tick data from the National Stock Exchange (NSE), as well as, daily closing data from both NSE and Bombay Stock Exchange (BSE). We find that the cumulative distributions of index returns have long tails consistent with a power-law having exponent α\approx 3, at time-scales of both 1 min and 1 day. This ``inverse cubic law'' is quantitatively similar to what has been observed in developed markets, thereby providing strong evidence of universality in the behavior of market fluctuations.
description: 8 pages, 6 figures, final version, to appear in Physica A, 1 figure added, appendix elongated to describe TE statistics
Robert Nawracala, Das Thesmophorion von Rhamnous
Creators: name: Kalogeropoulos, Konstantinos
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Robert Nawracala, Das Thesmophorion von Rhamnous. Antiquitates, Archäologische Forschungsergebnisse Bd. 62. Hamburg: Dr. Kovač Verlag 2014, 301 S., zahlreiche Zeichnungen, 9 Abb. mit Plänen, 11 Taf.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
“IT’S GOING TO TAKE A VILLAGE”: INCLUSIVE EQUITY PAUSES FOR SYSTEM LEADERS
Creators: name: Fernanders, Shareen
Publisher: name: American University
Year: 2023
Subjects: classificationCode: 390104
subject: English and literacy curriculum and pedagogy (excl. LOTE, ESL and TESOL)
classificationCode: 390108
subject: LOTE, ESL and TESOL curriculum and pedagogy
classificationCode: 390302
subject: Early childhood education
classificationCode: 390307
subject: Teacher education and professional development of educators
classificationCode: 390407
subject: Inclusive education
classificationCode: 390411
subject: Special education and disability
classificationCode: 390412
subject: Teacher and student wellbeing
classificationCode: 441012
subject: Sociology of inequalities

description: Literacy is a critical lever for social and political engagement; so critical that its access was oft barred from historically oppressed and marginalized student groups such as Black students, Students with Disabilities and English Language Learners through systemically inequitable policies and practices. Strategic action planning has the potential to either advance equity or be an oppressive force that further gatekeeps access to literacy. Gaps in how system leaders plan for specific groups of students – through the design of resources, procurement of materials, and provision of supports – can surely be counted as a leading factor for reduced effectiveness in instructional implementation. System leaders aiming to increase literacy proficiency and reduce risk for later reading disability for historically oppressed student groups must plan to eliminate instructional opportunity gaps. Equity-focused systemic transformation – with all its complexities and interrelationships – compels that leaders develop inclusive conditions so that diverse experiences and expertise are invited to the planning table. Framed as an intervention, this study examined inclusive equity pauses as a method for improving system leaders’ strategic planning practices and identifying core habits of mind and practices necessary for leaders to be catalysts of equity focused systemic transformation. Implications from the study’s findings suggest leaders engage in deep equity work to revise structures that unintentionally exclude stakeholders and reduce the degree of equity in strategic initiatives. Applying principles of Critical Race Theory can ensure that system leaders are more effective at closing instructional opportunity gaps for every student.
Leibniz seminorms for "Matrix algebras converge to the sphere"
Creators: name: Rieffel, Marc A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Operator Algebras (math.OA)
subject: High Energy Physics - Theory (hep-th)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 46L87 (Primary), 53C23, 58B34, 81R15, 81R30 (Secondary)

description: In an earlier paper of mine relating vector bundles and Gromov-Hausdorff distance for ordinary compact metric spaces, it was crucial that the Lipschitz seminorms from the metrics satisfy a strong Leibniz property. In the present paper, for the now non-commutative situation of matrix algebras converging to the sphere (or to other spaces) for quantum Gromov-Hausdorff distance, we show how to construct suitable seminorms that also satisfy the strong Leibniz property. This is in preparation for making precise certain statements in the literature of high-energy physics concerning "vector bundles" over matrix algebras that "correspond" to monopole bundles over the sphere. We show that a fairly general source of seminorms that satisfy the strong Leibniz property consists of derivations into normed bimodules. For matrix algebras our main technical tools are coherent states and Berezin symbols.
description: 46 pages. Scattered very minor improvements
Additional file 1 of Integrative analysis of TP53 mutations in lung adenocarcinoma for immunotherapies and prognosis
Creators: name: Li, He
name: Yang, Lei
name: Wang, Yuanyuan
name: Wang, Lingchan
name: Chen, Gang
name: Zhang, Li
name: Wang, Dongchang
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. SF1. Workflow. TCGA: The Cancer Genome Atlas; LUAD: Lung Adenocarcinoma; GISTIC: Genomic Identification of Significant Targets in Cancer; CNV: Copy Number Variations; TMB: Tumor Mutation Burden; MSI: Microsatellite Instability; PPI: Protein-Protein Interaction; URA: Univariate Regression Analysis; MRA: Multivariate Regression Analysis KM: Kaplan Meier.
Muscle spindle morphology in the tenuissimus muscle of the golden syrian hamster
Creators: name: Patten, Robert Michael
Publisher: name: University of British Columbia
Year: 2010

description: The tenuissimus is a long, thin hindlimb skeletal muscle which in hamsters contains about 200 extrafusal muscle fibers. Embedded in this richly innervated muscle is a continuous array of 16-20 closely packed muscle spindles suggesting that it may play a role in hindlimb proprioception. This high spindle density also makes the muscle ideal for the isolation and harvesting of these sensory receptors. In this correlative light and electron microscopic study, freshly frozen specimens were first prepared for serial microscopic analysis. Camera lucida reconstruction of spindle distribution showed a close proximity to the main artery and nerve in the central core of the muscle. Oxidative enzyme and myosin ATPase staining profiles were examined in both the intrafusal and extrafusal fiber populations. Type I and type II extrafusal fibers were present in even numbers and were distributed evenly throughout muscle cross-sections. Enzyme staining varied along the lengths of the three intrafusal fiber types. The fine structure of spindles was examined using transmission (TEM), conventional scanning (SEM), and high resolution scanning electron microscopy (HRSEM). For conventional SEM, isolated spindles were first fixed in 2.5% buffered glutaraldehyde, followed by 1% osmication, and mechanical disruption of the outer capsule under the dissecting microscope. Preparation for HRSEM included aldehyde/osmium fixation and freeze-cleavage of entire tenuissimus muscles in liquid N₂. Selective extraction of the cytosol with 0.1% OsO4 permitted the visualization of numerous intracellular structures. In these specimens, the capsular sleeve showed a multilayered pattern of vesicle-laden cells with variant surface topography in certain locations. Punctate sensory nerve endings adhered intimately to the surfaces of underlying intrafusal fibers in the equatorial and juxtaequatorial regions. By TEM and HRSEM these endings appeared crescent-shaped and were enveloped by external laminae. Each profile contained a plethora of mitochondria and cytoskeletal organelles. The methodology used in this study provides, for the first time, a three-dimensional view of the exquisite cytological architecture of this neuromuscular receptor.
Franz Humer (Hg.), Carnuntum. Wiedergeborene Stadt der Kaiser
Creators: name: Kaszab-Olschewski, Tünde
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Franz Humer (Hg.), Carnuntum. Wiedergeborene Stadt der Kaiser. Zaberns Bildbände zur Archäologie, Sonderbände der Antiken Welt. Darmstadt: Philipp von Zabern Verlag 2014, 168 S., 190 s/w- und Farb-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
Secondary homotopy groups
Creators: name: Baues, Hans-Joachim
name: Muro, Fernando
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D05; 55Q25; 55S45

description: Secondary homotopy groups supplement the structure of classical homotopy groups. They yield a track functor on the track category of pointed spaces compatible with fiber sequences, suspensions and loop spaces. They also yield algebraic models of homotopy types with homotopy groups concentrated in two consecutive dimensions.
description: We added further commets and references to make the paper more easily readable
Query reformulation based on word embeddings: A comparative study
Creators: name: Panagiotou, Panos
name: Kalpakis, George
name: Tsikrika, Theodora
name: Vrochidis, Stefanos
name: Kompatsiaris, Ioannis
Publisher: name: Zenodo
Year: 2020
Subjects: query expansion
word embeddings
terrorism

description: Formulating effective queries for retrieving domain-specific content from the Web and social media is very important for practitioners in several fields, including law enforcement analysts involved in terrorism-related investigations. Query reformulation aims at transforming the original query in such a way, so as to increase the search effectiveness by addressing the vocabulary mismatch problem. This work presents a study comparing the performance of global versus local word embeddings models when applied for query expansion. Two query expansions methods are employed (i.e., CombSum and Centroid) for defining the most similar terms to each query term, based on Glove pre-trained global embeddings and local models trained on four large-scale benchmark and one terrorism-related datasets. We assessed the performance of the global and local models on the benchmark datasets based on commonly used evaluation metrics, and performed a qualitative evaluation of the respective models on the terrorism-related dataset. Our findings indicate that the local models yield promising results on all datasets.
Additional file 3 of Integrative analysis of TP53 mutations in lung adenocarcinoma for immunotherapies and prognosis
Creators: name: Li, He
name: Yang, Lei
name: Wang, Yuanyuan
name: Wang, Lingchan
name: Chen, Gang
name: Zhang, Li
name: Wang, Dongchang
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3. SF4. Immunohistochemical staining of p53 protein was in normal and tumor tissues. In the HPA database. Immunohistochemical staining of p53 protein was lighter in normal tissues than in tumor tissues.
Ampere-class Bright Field Emission Cathode Operated at 100 MV/m
Creators: name: Schneider, Mitchell
name: Jevarjian, Emily
name: Nikhar, Tanvi
name: Posos, Taha Y.
name: Liu, Wanming
name: Shao, Jiahang
name: Baryshev, Sergey V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Applied Physics (physics.app-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: High current bright sources are needed to power the next generation of compact rf and microwave systems. A major requirement is that such a source could be sustainably operated at high frequencies, well above 1 GHz, and high gradients, well above 100 MV/m. Field emission sources offer simplicity and scalability in a high frequency era of the injector design, but the output rf cycle charge and high gradient operation remain a great and largely unaddressed challenge. Here, a field emission cathode based on ultra-nano-crystalline diamond or UNCD, an efficient planar field emission material, was tested at 100 MV/m in an L-band injector. A very high charge of 38 pC per rf cycle (300 nC per rf pulse corresponding to rf pulse current of 120 mA) was demonstrated. This operating condition revealed a space charge dominated emission from the cathode and revealed a condition under which the 1D Child Langmuir limit was surpassed. Finally, a beam brightness of $\sim 10^{14}-10^{15}$ A/m$^2\times$rad$^2$ was estimated.
Konrad Vössing, Das Königreich der Vandalen. Geiserichs Herrschaft und Imperium Romanum
Creators: name: Nicolaye, Carla
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Konrad Vössing, Das Königreich der Vandalen. Geiserichs Herrschaft und Imperium Romanum. Darmstadt: Philipp von Zabern Verlag 2014, 208 S., 10 s/w-Abb. und Kart.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
Top Quark Pairs at High Invariant Mass - A Model-Independent Discriminator of New Physics at the LHC
Creators: name: Barger, Vernon
name: Han, Tao
name: Walker, Devin G. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study top quark pair production to probe new physics at the LHC. We propose reconstruction methods for $t\bar{t}$ semileptonic events and use them to reconstruct the $t\bar{t}$ invariant mass. The angular distribution of top quarks in their c.m. frame can determine the spin and production subprocess for each new physics resonance. Forward-backward asymmetry and CP-odd variables can be constructed to further delineate the nature of new physics. We parametrize the new resonances with a few generic parameters and show high invariant mass top pair production may provide an early indicator for new physics beyond the Standard Model.
description: 5 pages, 4 figures; version to appear in PRL
Strong Anharmonic and Quantum Effects in Pm-3n AlH3 Under High Pressure: A First-Principles Study
Creators: name: Hou, Pugeng
name: Belli, Francesco
name: Bianco, Raffaello
name: Errea, Ion
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by the absence of experimental superconductivity in the metallic Pm-3n phase of AlH3 despite the predictions, we reanalyze its vibrational and superconducting properties at pressures above 99 GPa making use of first-principles techniques. In our calculations based on the self-consistent harmonic approximation method that treats anharmonicity beyond perturbation theory, we predict a strong anharmonic correction to the phonon spectra and demonstrate that the superconducting critical temperatures predicted in previous calculations based on the harmonic approximation are strongly suppressed by anharmonicity. The electron-phonon coupling concentrates on the lowest-energy hydrogen-character optical modes at the X point of the Brillouin zone. As a consequence of the strong anharmonic enhancement of their frequency, the electron-phonon coupling is suppressed by at least a 30%. The suppression in λ makes Tc smaller than 4.2 K above 120 GPa, which is well consistent with the experimental evidence. Our results underline that metal hydrides with hydrogen atoms in interstitial sites are subject to huge anharmonic effects.
Sophie Helas, Selinus II. Die punische Stadt auf der Akropolis
Creators: name: Russenberger, Christian
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Sophie Helas, Selinus II. Die punische Stadt auf der Akropolis. In Zusammenarbeit mit Oliver Hofmeister, Antje Werner, Jürgen Schumann, Gabriel Zuchtriegel und Giuseppina Mammina. Sonderschriften des Deutschen Archäologischen Instituts Rom Bd. 15. Wiesbaden: Reichert Verlag 2011, 370 S., 431 s/w-Abb., 6 farb. Abb., 6 Pläne als Faltbeilage, 75 Pläne in Heftbeilage
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft
Naive Lattice Fermion without Doublers
Creators: name: Guo, Xingyu
name: Ma, Chen-Te
name: Zhang, Hui
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the naive lattice fermion without the issue of doublers. A local lattice massless fermion action with chiral symmetry and hermiticity cannot avoid the doubling problem from the Nielsen-Ninomiya theorem. Here we adopt the forward finite-difference deforming the $γ_5$-hermiticity but preserving the continuum chiral-symmetry. The lattice momentum is not hermitian without the continuum limit now. We demonstrate that there is no doubling issue from an exact solution. The propagator only has one pole in the first-order accuracy. Therefore, it is hard to know the avoiding due to the non-hermiticity. For the second-order, the lattice propagator has two poles as before. This case also does not suffer from the doubling problem. Hence separating the forward derivative from the backward one evades the doublers under the field theory limit. Simultaneously, it is equivalent to breaking the hermiticity. In the end, we discuss the topological charge and also demonstrate the numerical implementation of the Hybrid Monte Carlo.
description: 18 pages, 4 figures, minor changes, reference changed
Stochastic Hard-Sphere Dynamics for Hydrodynamics of Non-Ideal Fluids
Creators: name: Donev, Aleksandar
name: Alder, Berni J.
name: Garcia, Alejandro L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A novel stochastic fluid model is proposed with non-ideal structure factor consistent with compressibility, and adjustable transport coefficients. This Stochastic Hard Sphere Dynamics (SHSD) algorithm is a modification of the Direct Simulation Monte Carlo (DSMC) algorithm and has several computational advantages over event-driven hard-sphere molecular dynamics. Surprisingly, SHSD results in an equation of state and pair correlation function identical to that of a deterministic Hamiltonian system of penetrable spheres interacting with linear core pair potentials. The fluctuating hydrodynamic behavior of the SHSD fluid is verified for the Brownian motion of a nano-particle suspended in a compressible solvent.
description: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 (LLNL-JRNL-401745). To appear in Phys. Rev. Lett. 2008
Boris Dunsch – Arbogast Schmitt – Thomas A. Schmitz (Hgg.), Epos, Lyrik, Drama. Genese und Ausformung der literarischen Gattungen
Creators: name: Bär, Silvio
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Boris Dunsch – Arbogast Schmitt – Thomas A. Schmitz (Hgg.), Epos, Lyrik, Drama. Genese und Ausformung der literarischen Gattungen. Bibliothek der Klassischen Altertumswissenschaften Bd. 2/139. Heidelberg: Universitätsverlag Winter 2013, 421 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 18 (2015): Göttinger Forum für Altertumswissenschaft