cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Zu einer transnationalen Bewegung: Protestantische Mission seit 1800
Creators: name: Stadtland, Helke
Publisher: name: Moving the Social
Year: 2015

description: Artur Bogner/Bernd Holtwick/Hartmann Tyrell (Hg.): Weltmission und religiöse Organisationen. Protestantische Missionsgesellschaften im 19. und 20. Jahrhundert, Würzburg: Ergon-Verlag 2004, 760 Seiten, 54,00 €.
description: Moving the Social, Vol 34 (2005): Forschungen und Forschungsberichte
Abgeschlossene Dissertationen zur Geschichte der Arbeiterbewegung
Creators: name: Thesis, Thesis
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Abgeschlossene Dissertationen zur Geschichte der Arbeiterbewegung" of Moving the Social 6 (1982).
description: Moving the Social, Vol 6 (1982): Forschungen und Forschungsberichte
Arbeitsverhältnisse in der Hüttenindustrie im 19. Jahrhundert
Creators: name: Zumdick, Ulrich
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Arbeitsverhältnisse in der Hüttenindustrie im 19. Jahrhundert" of MTS 8 (1987).
description: Moving the Social, Vol 8 (1987): Forschungen und Forschungsberichte
Resonance fluorescence from a coherently driven semiconductor quantum dot in a cavity
Creators: name: Muller, Andreas
name: Flagg, Edward B.
name: Bianucci, Pablo
name: Wang, Xiaoyong
name: Deppe, Dennis G.
name: Ma, Wenquan
name: Zhang, Jiayu
name: Xiao, Min
name: Salamo, Gregory J.
name: Shih, Chih-Kang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We show that resonance fluorescence, i.e. the resonant emission of a coherently driven two-level system, can be realized with a semiconductor quantum dot. The dot is embedded in a planar optical micro-cavity and excited in a wave-guide mode so as to discriminate its emission from residual laser scattering. The transition from the weak to the strong excitation regime is characterized by the emergence of oscillations in the first-order correlation function of the fluorescence, g(t), as measured by interferometry. The measurements correspond to a Mollow triplet with a Rabi splitting of up to 13.3 micro eV. Second-order-correlation measurements further confirm non-classical light emission.
description: 5 pages, 4 figures
การพัฒนาบุคลากรด้านการผลิตและใช้สื่อคอมพิวเตอร์มัลติมีเดียโรงเรียนดอนสวรรค์หนองกุงใต้วิทยา อำเภอชื่นชม จังหวัดมหาสารคาม
Creators: name: พยับ  ไชยสง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: การพัฒนาบุคลากรด้านการผลิตและใช้สื่อคอมพิวเตอร์มัลติมีเดีย

description: 5, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
การเปรียบเทียบสภาพแวดล้อมภายนอกที่มีต่อความเครียดเชิงบทบาทของนักบัญชีธุรกิจ  SMEs  ในเขตภาคตะวันออกเฉียงเหนือ
Creators: name: รัชนี  อัศวจุฬามณี
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: สภาพแวดล้อมภายนอก, ความเครียดเชิงบทบาท, นักบัญชีธุรกิจ, SMEs

description: 5, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Mining in the settler dominions : a comparative study of the industry in three communities from the 1880s to the First World War
Creators: name: Mouat, Jeremy
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation examines the evolution of the mining industry in three British dominions during the late nineteenth and early twentieth centuries. Adopting a case study approach, it describes the establishment and growth of mining in Rossland, British Columbia; Broken Hill, New South Wales; and Waihi, New Zealand. Separate chapters trace developments in each area, focussing on the emergence of organised labour, the growth of mining companies and the sophistication of mining operations. These underline the need to consider diverse themes, maintaining that the mining industry's pattern of growth can be understood only by adopting such a broad approach. Following the three case studies, the final chapters of the dissertation offer a comparative analysis of Rossland, Waihi and Broken Hill. The study emphasises the similarities of these three communities, especially the cycle of growth, and identifies a crucial common denominator. Despite differences in climate, in the type and nature of the ore deposit and in the scale of mining activity, all three areas experienced a common trajectory of initial boom followed by subsequent retrenchment. The changing character of the resource base forced this fundamental alteration of productive relations. In each region, the mineral content of the ore declined as the mines went deeper. In addition, with depth the ore tended to become more difficult to treat. Faced with a decline in the value of the product of their mines, companies had to adopt sweeping changes in order to maintain profitable operations. This re-structuring was accomplished in a variety of ways, but the most significant factors, common to Rossland, Broken Hill and Waihi, were the heightened importance of applied science and economies of scale. Both developments underlined the growing importance of the mining engineer and technological innovations, principally in milling and smelting operations. In addition, new non-selective extractive techniques reduced the significance of skilled underground labour. The re-structuring of the industry not only had similar causes but also had a similar effect. The comparative chapter on labour relations, for example, argues that these managerial initiatives were closely associated with militant episodes in each community. While the leading companies in Rossland, Waihi and Broken Hill successfully reduced their working costs, they all faced the same ultimate end. Their long-term success or failure reflected the skill with which they coped with the inevitable depletion of their ore body. The common experience of Rossland, Waihi and Broken Hill demonstrates the importance of placing colonial development within a larger context. Regional historians should make greater use of the comparative approach, rather than continuing to focus on the unique and the particular.
Towards a Better Understanding of Social Acceptability
Creators: name: Uhde, Alarith
name: Hassenzahl, Marc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Social contexts play an important role in understanding acceptance and use of technology. However, current approaches used in HCI to describe contextual influence do not capture it appropriately. On the one hand, the often used Technology Acceptance Model and related frameworks are too rigid to account for the nuanced variations of social situations. On the other hand, Goffman's dramaturgical model of social interactions emphasizes interpersonal relations but mostly overlooks the material (e.g., technology) that is central to HCI. As an alternative, we suggest an approach based on Social Practice Theory. We conceptualize social context as interactions between co-located social practices and acceptability as a matter of their (in)compatibilities. Finally, we outline how this approach provides designers with a better understanding of different types of social acceptability problems and helps finding appropriate solutions.
description: 7 pages, 0 figures
Persistent Currents in Superconducting Quantum Interference Devices
Creators: name: Romeo, F.
name: De Luca, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Starting from the reduced dynamical model of a two-junction quantum interference device, a quantum analog of the system has been exhibited, in order to extend the well known properties of this device to the quantum regime. By finding eigenvalues of the corresponding Hamiltonian operator, the persistent currents flowing in the ring have been obtained. The resulting quantum analog of the overdamped two-junction quantum interference device can be seen as a supercurrent qubit operating in the limit of negligible capacitance and finite inductance.
description: 16 pages, 5 figures
Deep Learning Identifies Neuroimaging Signatures of Alzheimer's Disease Using Structural and Synthesized Functional MRI Data
Creators: name: Zhu, Nanyan
name: Liu, Chen
name: Feng, Xinyang
name: Sikka, Dipika
name: Gjerswold-Selleck, Sabrina
name: Small, Scott A.
name: Guo, Jia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Current neuroimaging techniques provide paths to investigate the structure and function of the brain in vivo and have made great advances in understanding Alzheimer's disease (AD). However, the group-level analyses prevalently used for investigation and understanding of the disease are not applicable for diagnosis of individuals. More recently, deep learning, which can efficiently analyze large-scale complex patterns in 3D brain images, has helped pave the way for computer-aided individual diagnosis by providing accurate and automated disease classification. Great progress has been made in classifying AD with deep learning models developed upon increasingly available structural MRI data. The lack of scale-matched functional neuroimaging data prevents such models from being further improved by observing functional changes in pathophysiology. Here we propose a potential solution by first learning a structural-to-functional transformation in brain MRI, and further synthesizing spatially matched functional images from large-scale structural scans. We evaluated our approach by building computational models to discriminate patients with AD from healthy normal subjects and demonstrated a performance boost after combining the structural and synthesized functional brain images into the same model. Furthermore, our regional analyses identified the temporal lobe to be the most predictive structural-region and the parieto-occipital lobe to be the most predictive functional-region of our model, which are both in concordance with previous group-level neuroimaging findings. Together, we demonstrate the potential of deep learning with large-scale structural and synthesized functional MRI to impact AD classification and to identify AD's neuroimaging signatures.
description: Published in IEEE ISBI 2021. Available at https://ieeexplore.ieee.org/document/9433808
Neutrinos and Non-proliferation in Europe
Creators: name: Cribier, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Triggered by the demand of the IAEA, neutrino physicists in Europe involved with the Double Chooz experiment are studying the potential of neutrino detection to monitor nuclear reactors. In particular a new set of experiments at the ILL is planned to improve the knowledge of the neutrino spectrum emitted in the fission of 235U and 239Pu.
Quantum Phase Transitions on Percolating Lattices
Creators: name: Vojta, Thomas
name: Hoyos, J. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: When a quantum many-particle system exists on a randomly diluted lattice, its intrinsic thermal and quantum fluctuations coexist with geometric fluctuations due to percolation. In this paper, we explore how the interplay of these fluctuations influences the phase transition at the percolation threshold. While it is well known that thermal fluctuations generically destroy long-range order on the critical percolation cluster, the effects of quantum fluctuations are more subtle. In diluted quantum magnets with and without dissipation, this leads to novel universality classes for the zero-temperature percolation quantum phase transition. Observables involving dynamical correlations display nonclassical scaling behavior that can nonetheless be determined exactly in two dimensions.
description: 10 pages, invited talk at "Recent Progress in Many-Body Theories 14"
ทัศนคติต่อการบังคับใช้พระราชบัญญัติจราจรทางบกในจังหวัดมหาสารคาม: กรณีศึกษานิสิตมหาวิทยาลัยมหาสารคาม
Creators: name: ชาคริต ขันนาโพธิ์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: ทัศนคติ, พระราชบัญญัติจราจรทางบก, จังหวัดมหาสารคาม

description: 5, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
ผลกระทบของมาตรฐานการปฏิบัติงานการสอบบัญชีที่มีต่อความสำเร็จในการสอบบัญชีของผู้สอบบัญชีรับอนุญาตในประเทศไทย
Creators: name: บุหลัน  ศรีมูล
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: มาตรฐานการปฏิบัติงานการสอบบัญชี, ความสำเร็จในการสอบบัญชี, ผู้สอบบัญชีรับอนุญาต

description: 5, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
A Bibliometric Exploration of LIS Scholarship
Creators: name: Trost, Amy
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: data visualization
library services
bibliometrics

description: A poster presented at the Special Libraries Association Annual Conference, June 2019
description: Librarians who practice bibliometrics are often asked to compare the research output of an academic department or research group to a larger body of scholarship. Here I explore techniques to address these requests with a case study examining the field of Library and Information Science (LIS). Scholarship around academic libraries is evaluated in two ways: broadly, and as produced by librarians within the University System of Maryland (USM). This analysis relies on bibliographic data from EBSCO's Library and Information Science Source (LISS) database for the time period of 2008-2019. 16,248 records related to the exploded “academic libraries” subject heading were retrieved via bulk export. The analysis below explores the controlled vocabulary associated with these articles and endeavors to answer three questions: 1. Can the co-occurrence of thesaurus terms be used to map the research landscape around academic librarianship? 2. Are there trends in keyword usage over time? 3. How is the research focus of 140 published librarians in the University System of Maryland and Affiliated Institutions (USMAI) consortium different from the focus of the broader collection?
ผลกระทบของการเปิดเผยข้อมูลในรายงานทางการเงินที่มีต่อประโยชน์ของรายงานทางการเงินของธุรกิจอาหารและเครื่องดื่มในประเทศไทย
Creators: name: ปวีณา เรือจันทึก
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: การเปิดเผยข้อมูล, ประโยชน์ของรายงานทางการเงิน, ธุรกิจอาหารและเครื่องดื่ม

description: 6, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Intrinsic motivational effects and cognitive learning outcomes of an instructional microcomputer game
Creators: name: Shaban, Abdullah
Publisher: name: University of British Columbia
Year: 2010

description: The current study addresses the questions of what determines intrinsic motivation, how do the factors that determine it work, and what kinds of cognitive learning may be achieved in an intrinsically motivating environment? A microcomputer game environment, involving one instructional and one noninstructional game, was selected for the study. Two game-specific parallel tests of motivation involving the factors of Challenge, Curiosity, Control, and Fantasy were constructed. An achievement test of algebra relating to the content of the instructional game and involving the learning of Concepts, Rules, and Procedures was also constructed. In an experiment involving 134 10th-grade students, a test of divergent feeling, measuring how creative the students feel about themselves, was administered. The subjects were then randomly assigned by gender and class to either an experimental or a control group. Following a practice session, the experimental group played each game twice and answered a test of motivation each time, while the control group played the noninstructional game twice and used worksheets twice to practice the mathematical content of the instructional game. The test of algebra was administered to all subjects after the last playing session and in the fifth week following that. The results revealed that each of the four factors of Challenge, Curiosity, Control, and Fantasy played a role in determining the intrinsic motivational effects of the games. The games did not differentiate in motivation between boys and girls or among students with different levels of perceived creativity. There were no significant differences in achievement or retention between the experimental and control groups: the worksheets were just as effective as the game in enabling the learning of Concepts, Rules, and Procedure on both the post-test and retention test. Gender differences in mathematics achievement, favouring boys over girls, were accounted for, in part, by the level of perceived creativity. Challenge, Control, and Fantasy correlated positively with cognitive learning. For the instructional game, there was no significant change for the factors of Challenge, Curiosity, and Fantasy; but student motivation attributed to Control increased significantly.
คุณภาพการบริโภคในข้าวโพดรับประทานฝักสด
Creators: name: สกุลกานต์ สิมลา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: ข้าวโพดข้าวเหนียวหรือข้าวโพดเทียน, ข้าวโพดหวาน, ข้าวโพดหวานพิเศษ, คุณภาพการบริโภค

description: 3, 32, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
แบบจำลองทางคณิตศาสตร์ของแผงเซลล์แสงอาทิตย์แบบทันเวลา
Creators: name: เดชนิติธร อิ่มปรีดา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: แผงเซลล์แสงอาทิตย์, ความเข้มแสง, อุณหภูมิ

description: 4, 32, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Low-momentum interactions for ultracold Fermi gases
Creators: name: Urban, M.
name: Ramanan, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider a two-component Fermi gas with a contact interaction from the BCS regime to the unitary limit. Starting from the idea that many-body effects should not depend on short-distance or high-momentum physics which is encoded in the s-wave scattering length, but only on momentum scales of the order of the Fermi momentum, we build effective low-momentum interactions that reproduce the scattering phase shifts of the contact interaction below some momentum cutoff. Inspired from recent successes of this method in nuclear structure theory, we use these interactions to describe the equation of state of the Fermi gas in the framework of Hartree-Fock-Bogliubov theory with perturbative corrections. In the BCS regime, there is a range of cutoffs where we obtain fully converged results. Near unitarity, convergence is not yet reached, but we obtain promising results for the ground-state energies close to the experimental ones. Limitations and possible extensions of the approach are discussed.
description: 11 pages, 4 figures; v2: minor changes
การอบแห้งเนื้อหมูแดดเดียวด้วยเครื่องอบแห้งพลังงานแสงอาทิตย์แบบอุโมงค์ชนิดที่มีวัสดุสะสมความร้อน
Creators: name: ถาวร อู่ทรัพย์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: หมูแดดเดียว, เครื่องอบแห้งพลังงานแสงอาทิตย์, วัสดุสะสมความร้อน

description: 4, 32, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
ผลของอุณหภูมินํ้าหล่อเย็นต่อปริมาณและสมบัติของไบโอออยล์ที่ได้จากการไพโรไลซีสแบบเร็วของลำต้นและเหง้ามันสำปะหลังในเครื่องปฏิกรณ์แบบตกอิสระ
Creators: name: นิวัตน์ ประทุมไชย
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: ไพโรไลซิสแบบเร็ว, น้ำหล่อเย็น, เครื่องปฏิกรณ์แบบตกอิสระ, ลำตันและเหง้ามันสำปะหลัง

description: 4, 32, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Joint European Project to Enhance Collaboration: Promoting research data management and open science within technical fields
Creators: name: Fält, Katja
name: Nykyri, Susanna
name: Strötgen, Robert
Publisher: name: Zenodo
Year: 2019
Subjects: Research data management, technical fields,

description: This is a duplicate of doi.org/10.5281/zenodo.3258178. A presentation held at the 48th LIBER Conference - Research Libraries for Society in Dublin, 27th June 2018. The presentation describes the outcomes of a seed funded TUT&TUBS data management services project (2018-2019). * TUT= Tampere University of Technology. (Tampere University (TAU) is created in January 2019 by the merger of the University of Tampere and Tampere University of Technology, which are joining forces to create a new foundation-based university.)
Additional file 1 of Assessing changes in incubation period, serial interval, and generation time of SARS-CoV-2 variants of concern: a systematic review and meta-analysis
Creators: name: Xu, Xiangyanyu
name: Wu, Yanpeng
name: Kummer, Allisandra G.
name: Zhao, Yuchen
name: Hu, Zexin
name: Wang, Yan
name: Liu, Hengcong
name: Ajelli, Marco
name: Yu, Hongjie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. Search strategy and search results. Table S2. Quality assessment scale. Table S3. Excluded studies and reason for exclusion. Table S4. Quality assessment of the studies used in the meta-analysis. Figure S1. Forest plot for studies of reporting estimates of the incubation period for different SARS-CoV-2 lineages. Figure S2. Funnel plot for the incubation period with a 95% CI for studies included in the meta-analysis. Figure S3. Forest plot for studies of reporting estimates of the serial interval for different SARS-CoV-2 lineages. Figure S4. Funnel plot for the serial interval with a 95% CI for studies included in the meta-analysis. Figure S5. Forest plot for studies of reporting estimates of the realized generation time for different SARS-CoV-2 lineages. Figure S6. Funnel plot for the realized generation time with a 95% CI for studies included in the meta-analysis. Figure S7. Forest plot for studies of reporting estimates of the intrinsic generation time for different SARS-CoV-2 lineages. Table S5. Characteristics of previous meta-analyses of the incubation period and/or serial interval of SARS-CoV-2 VOCs.
Heisenberg scaling precision in the estimation of functions of parameters
Creators: name: Triggiani, Danilo
name: Facchi, Paolo
name: Tamma, Vincenzo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a metrological strategy reaching Heisenberg scaling precision in the estimation of functions of any number $l$ of arbitrary parameters encoded in a generic $M$-channel linear network. This scheme is experimentally feasible since it only employs a single-mode squeezed vacuum and homodyne detection on a single output channel. Two auxiliary linear network are required and their role is twofold: to refocus the signal into a single channel after the interaction with the interferometer, and to fix the function of the parameters to be estimated according to the linear network analysed. Although the refocusing requires some knowledge on the parameters, we show that the required precision on the prior measurement is shot-noise, and thus achievable with a classic measurement. We conclude by discussing two paradigmatic schemes in which the choice of the auxiliary stages allows to change the function of the unknown parameter to estimate.
description: 10 pages, 3 figures
Nature of the ferromagnetic-antiferromagnetic transition in Y$_{1-x}$La$_{x}$TiO$_{3}$
Creators: name: Hameed, S.
name: El-Khatib, S.
name: Olson, K. P.
name: Yu, B.
name: Williams, T. J.
name: Hong, T.
name: Sheng, Q.
name: Yamakawa, K.
name: Zang, J.
name: Uemura, Y. J.
name: Zhao, G. Q.
name: Jin, C. Q.
name: Fu, L.
name: Gu, Y.
name: Ning, F.
name: Cai, Y.
name: Kojima, K. M.
name: Freeland, J. W.
name: Matsuda, M.
name: Leighton, C.
name: Greven, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We explore the magnetically-ordered ground state of the isovalently-substituted Mott-insulator Y$_{1-x}$La$_{x}$TiO$_{3}$ for $x$ $\leq$ 0.3 via single crystal growth, magnetometry, neutron diffraction, x-ray magnetic circular dichroism (XMCD), muon spin rotation ($μ$SR) and small-angle neutron scattering (SANS). We find that the decrease in the magnetic transition temperature on approaching the ferromagnetic (FM) - antiferromagnetic (AFM) phase boundary at the La concentration $x_c$ $\approx$ 0.3 is accompanied by a strong suppression of both bulk and local ordered magnetic moments, along with a volume-wise separation into magnetically-ordered and paramagnetic regions. The thermal phase transition does not show conventional second-order behavior, since neither a clear signature of dynamic critical behavior nor a power-law divergence of the magnetic correlation length is found for the studied substitution range; this finding becomes increasingly obvious with substitution. Finally, from SANS and magnetometry measurements, we discern a crossover from easy-axis to easy-plane magneto-crystalline anisotropy with increasing La substitution. These results indicate complex changes in magnetic structure upon approaching the phase boundary.
description: 16 pages, 16 figures
Two-component electronic phase separation in the doped Mott insulator Y$_{1-x}$Ca$_{x}$TiO$_{3}$
Creators: name: Hameed, S.
name: Joe, J.
name: Gautreau, D. M.
name: Freeland, J. W.
name: Birol, T.
name: Greven, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: One of the major puzzles in condensed matter physics has been the observation of a Mott-insulating state away from half-filling. The filling-controlled Mott insulator-metal transition, induced via charge-carrier doping, has been extensively researched, but its governing mechanisms have yet to be fully understood. Several theoretical proposals aimed to elucidate the nature of the transition have been put forth, a notable one being phase separation and an associated percolation-induced transition. In the present work, we study the prototypical doped Mott-insulating rare-earth titanate YTiO$_3$, in which the insulating state survives up to a large hole concentration of 35%. Single crystals of Y$_{1-x}$Ca$_x$TiO$_3$ with $0 \leq x \leq 0.5$, spanning the insulator-metal transition, are grown and investigated. Using x-ray absorption spectroscopy, a powerful technique capable of probing element-specific electronic states, we find that the primary effect of hole doping is to induce electronic phase separation into hole-rich and hole-poor regions. The data reveal the formation of electronic states within the Mott-Hubbard gap, near the Fermi level, which increase in spectral weight with increasing doping. From a comparison with DFT+$U$ calculations, we infer that the hole-poor and hole-rich components have charge densities that correspond to the Mott-insulating $x = 0$ and metallic $x \sim 0.5$ states, respectively, and that the new electronic states arise from the metallic component. Our results indicate that the hole-doping-induced insulator-metal transition in Y$_{1-x}$Ca$_x$TiO$_3$ is indeed percolative in nature, and thus of inherent first-order character.
description: 15 pages, supplementary material included
The old open clusters Berkeley 32 and King 11
Creators: name: Tosi, Monica
name: Bragaglia, Angela
name: Cignoni, Michele
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have obtained CCD BVI imaging of the old open clusters Berkeley 32 and King 11. Using the synthetic colour-magnitude diagram method with three different sets of stellar evolution models of various metallicities, with and without overshooting, we have determined their age, distance, reddening, and indicative metallicity, as well as distance from the Galactic centre and height from the Galactic plane. The best parameters derived for Berkeley 32 are: subsolar metallicity (Z=0.008 represents the best choice, Z=0.006 or 0.01 are more marginally acceptable), age = 5.0-5.5 Gyr (models with overshooting; without overshooting the age is 4.2-4.4 Gyr with poorer agreement), (m-M)_0=12.4-12.6, E(B-V)=0.12-0.18 (with the lower value being more probable because it corresponds to the best metallicity), Rgc ~ 10.7-11 kpc, and |Z| ~ 231-254 pc. The best parameters for King 11 are: Z=0.01, age=3.5-4.75 Gyr, (m-M)_0=11.67-11.75, E(B-V)=1.03-1.06, Rgc ~ 9.2-10 kpc, and |Z| ~ 253-387 pc.
description: Accepted for publication on MNRAS (figs. 6 and 10 shown at degraded resolution)
We Know What You Want: An Advertising Strategy Recommender System for Online Advertising
Creators: name: Guo, Liyi
name: Jin, Junqi
name: Zhang, Haoqi
name: Zheng, Zhenzhe
name: Yang, Zhiye
name: Xing, Zhizhuang
name: Pan, Fei
name: Niu, Lvyin
name: Wu, Fan
name: Xu, Haiyang
name: Yu, Chuan
name: Jiang, Yuning
name: Zhu, Xiaoqiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Advertising expenditures have become the major source of revenue for e-commerce platforms. Providing good advertising experiences for advertisers by reducing their costs of trial and error in discovering the optimal advertising strategies is crucial for the long-term prosperity of online advertising. To achieve this goal, the advertising platform needs to identify the advertiser's optimization objectives, and then recommend the corresponding strategies to fulfill the objectives. In this work, we first deploy a prototype of strategy recommender system on Taobao display advertising platform, which indeed increases the advertisers' performance and the platform's revenue, indicating the effectiveness of strategy recommendation for online advertising. We further augment this prototype system by explicitly learning the advertisers' preferences over various advertising performance indicators and then optimization objectives through their adoptions of different recommending advertising strategies. We use contextual bandit algorithms to efficiently learn the advertisers' preferences and maximize the recommendation adoption, simultaneously. Simulation experiments based on Taobao online bidding data show that the designed algorithms can effectively optimize the strategy adoption rate of advertisers.
Time variation of the fine structure constant in the early universe and the Bekenstein model
Creators: name: Mosquera, Mercedes E.
name: Scoccola, Claudia G.
name: Landau, Susana J.
name: Vucetich, Hector
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We calculate bounds on the variation of the fine structure constant at the time of primordial nucleosynthesis and at the time of neutral hydrogen formation. We use these bounds and other bounds from the late universe to test Bekenstein model. We modify the Kawano code, CAMB and CosmoMC in order to include the possible variation of the fine structure constant. We use observational primordial abundances of $\De$, $\He$ and $\Li$, recent data from the Cosmic Microwave Background and the 2dFGRS power spectrum, to obtain bounds on the variation of $α$. We calculate a piecewise solution to the scalar field equation of Bekenstein model in two different regimes; i) matter and radiation, ii) matter and cosmological constant. We match both solutions with appropriate boundary conditions. We perform a statistical analysis using the bounds obtained from the early universe and other bounds from the late universe to constrain the free parameters of the model. Results are consistent with no variation of $α$ in the early universe. Limits on $α$ are inconsistent with the scale length of the theory $l$ being larger than Planck scale. In order to fit all observational and experimental data, the assumption $l>L_p$ implied in Bekenstein's model has to be relaxed.
description: 13 pages, 8 figures,version accepted to be published in Astronomy and Astrophysics
MPEC 2024-T37 : 2016 GB221
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
New Topological Gauss-Bonnet Black Holes in Five Dimensions
Creators: name: Peng, Yuxuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate vacuum static black hole solutions of Einstein-Gauss-Bonnet gravity with a negative cosmological constant in five dimensions. These are solutions with horizons of nontrivial topologies. The first one possesses a horizon with the topology $S^1 \times H^2$, and a varying Gauss-Bonnet coupling constant $α$. By looking into its thermodynamic properties, we find that its specific heat capacity with fixed volume is negative, therefore it is thermodynamically unstable. The second one is equipped with a so-called "Sol-manifold" as its horizon, and interestingly, the product of the Gauss-Bonnet coupling constant $α$ and the cosmological constant $Λ$ is fixed. For the second solution, the total energy and entropy vanish. These results enlarge our knowledge of both topological black holes in higher dimensions and the property of higher curvature corrections of gravitational theories.
description: 6pages, no figures, some references added in the 2nd version
Assessing the environmental impacts of invasive alien species for prioritization using insects as a model taxon
Creators: name: CLARKE, DAVID ANTHONY
Publisher: name: Monash University
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Prioritizing resource allocation for mitigating the environmental impacts of invasive alien species is necessary given continued species introductions. Focusing on environmental impacts, this thesis used bottom-up and top-down perspectives for improving invasive alien insect species prioritization. Uncertainty in environmental impact assessment outcomes was identified, classified, and subsequently distilled into a set of recommendations. Environmental impacts of invasive alien insects varied both geographically and taxonomically. Furthermore, many high-priority sites in Australia were identified as at risk from invasive alien insect species. This work provides information, and demonstrates a site identification approach, for implementing effective prioritization and management of biological invasions.
Force unfolding kinetics of RNA using optical tweezers. II. Modeling experiments
Creators: name: Manosas, M.
name: Wen, J. -D.
name: Li, P. T. X.
name: Smith, S. B.
name: Bustamante, C.
name: Tinoco,, I.
name: Ritort, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: By exerting mechanical force it is possible to unfold/refold RNA molecules one at a time. In a small range of forces, an RNA molecule can hop between the folded and the unfolded state with force-dependent kinetic rates. Here, we introduce a mesoscopic model to analyze the hopping kinetics of RNA hairpins in an optical tweezers setup. The model includes different elements of the experimental setup (beads, handles and RNA sequence) and limitations of the instrument (time lag of the force-feedback mechanism and finite bandwidth of data acquisition). We investigated the influence of the instrument on the measured hopping rates. Results from the model are in good agreement with the experiments reported in the companion article (1). The comparison between theory and experiments allowed us to infer the values of the intrinsic molecular rates of the RNA hairpin alone and to search for the optimal experimental conditions to do the measurements. We conclude that long handles and soft laser traps represent the best conditions to extract rate estimates that are closest to the intrinsic molecular rates. The methodology and rationale presented here can be applied to other experimental setups and other molecules.
description: PDF file, 32 pages including 9 figures plus supplementary material
Constraints on the dense matter equation of state and neutron star properties from NICER's mass-radius estimate of PSR J0740+6620 and multimessenger observations
Creators: name: Raaijmakers, G.
name: Greif, S. K.
name: Hebeler, K.
name: Hinderer, T.
name: Nissanke, S.
name: Schwenk, A.
name: Riley, T. E.
name: Watts, A. L.
name: Lattimer, J. M.
name: Ho, W. C. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In recent years our understanding of the dense matter equation of state (EOS) of neutron stars has significantly improved by analyzing multimessenger data from radio/X-ray pulsars, gravitational wave events, and from nuclear physics constraints. Here we study the additional impact on the EOS from the jointly estimated mass and radius of PSR J0740+6620, presented in Riley et al. (2021) by analyzing a combined dataset from X-ray telescopes NICER and XMM-Newton. We employ two different high-density EOS parameterizations: a piecewise-polytropic (PP) model and a model based on the speed of sound in a neutron star (CS). At nuclear densities these are connected to microscopic calculations of neutron matter based on chiral effective field theory interactions. In addition to the new NICER data for this heavy neutron star, we separately study constraints from the radio timing mass measurement of PSR J0740+6620, the gravitational wave events of binary neutron stars GW190425 and GW170817, and for the latter the associated kilonova AT2017gfo. By combining all these, and the NICER mass-radius estimate of PSR J0030+0451 we find the radius of a 1.4 solar mass neutron star to be constrained to the 95% credible ranges 12.33^{+0.76}_{-0.81} km (PP model) and 12.18^{+0.56}_{-0.79} km (CS model). In addition, we explore different chiral effective field theory calculations and show that the new NICER results provide tight constraints for the pressure of neutron star matter at around twice saturation density, which shows the power of these observations to constrain dense matter interactions at intermediate densities.
description: 17 pages, 8 figures; accepted for publication in the Astrophysical Journal Letters
The Expanding Photosphere Method: Progress and Problems
Creators: name: Vinko, J.
name: Takats, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Distances to well-observed Type II-P SNe are determined from an updated version of the Expanding Photosphere Method (EPM), based on recent theoretical models. The new EPM distances show good agreement with other independent distances to the host galaxies without any significant systematic bias, contrary to earlier results in the literature. The accuracy of the method is comparable with that of the distance measurements for Type Ia SNe.
description: 5 pages; to appear in the AIP conference proceedings of "Supernova 1987A: 20 Years After - Supernovae and Gamma-Ray Bursters", February 19-23, 2007, Aspen, Colorado
Spontaneous Lorentz Violation: Non-Abelian Gauge Fields as Pseudo-Goldstone Vector Bosons
Creators: name: Chkareuli, J. L.
name: Jejelava, J. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that non-Abelian gauge fields can be treated as the pseudo-Goldstone vector bosons caused by spontaneous Lorentz invariance violation (SLIV). To this end, the SLIV which evolves in a general Yang-Mills type theory with the nonlinear vector field constraint $Tr(% \boldsymbol{A}_{μ}\boldsymbol{A}^μ)=\pm M^{2}$ ($M$ is a proposed SLIV scale) imposed is considered in detail. With an internal symmetry group $G$ having $D$ generators not only the pure Lorentz symmetry SO(1,3), but the larger accidental symmetry $SO(D,3D)$ of the SLIV constraint in itself appears to be spontaneously broken as well. As a result, while the pure Lorentz violation still generates only one genuine Goldstone vector boson, the accompanying pseudo-Goldstone vector bosons related to the $SO(D,3D)$ breaking also come into play in the final arrangement of the entire Goldstone vector field multiplet. Remarkably, they remain strictly massless, being protected by gauge invariance of the Yang-Mills theory involved. We show that, although this theory contains a plethora of Lorentz and $CPT$ violating couplings, they do not lead to physical SLIV effects which turn out to be strictly cancelled in all the lowest order processes considered. However, the physical Lorentz violation could appear if the internal gauge invariance were slightly broken at very small distances influenced by gravity. For the SLIV scale comparable with the Planck one the Lorentz violation could become directly observable at low energies.
description: Invited talk given at Caucasian-German School and Workshop in Hadron Physics (4-7 September 2006, Tbilisi, Georgia)
In-medium effects on particle production in heavy ion collisions
Creators: name: Prassa, V.
name: Ferini, G.
name: Gaitanos, T.
name: Wolter, H. H.
name: Lalazissis, G. A.
name: Di Toro, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The effect of possible in-medium modifications of nucleon-nucleon ($NN$) cross sections on particle production is investigated in heavy ion collisions ($HIC$) at intermediate energies. In particular, using a fully covariant relativistic transport approach, we see that the density dependence of the {\it inelastic} cross sections appreciably affects the pion and kaon yields and their rapidity distributions. However, the $(π^{-}/π^{+})$- and $(K^{0}/K^{+})$-ratios depend only moderately on the in-medium behavior of the inelastic cross sections. This is particularly true for kaon yield ratios, since kaons are more uniformly produced in high density regions. Kaon potentials are also suitably evaluated in two schemes, a chiral perturbative approach and an effective meson-quark coupling method, with consistent results showing a similar repulsive contribution for $K^{+}$ and $K^{0}$. As a consequence we expect rather reduced effects on the yield ratios. We conclude that particle ratios appear to be robust observables for probing the nuclear equation of state ($EoS$) at high baryon density and, particularly, its isovector sector.
description: 29 pages, 15 figures, accepted for publication in Nuclear Physics A
The String Dual to Free ${\cal N}=4$ Super Yang-Mills
Creators: name: Gaberdiel, Matthias R.
name: Gopakumar, Rajesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a worldsheet description for the ${\rm AdS}_5\times {\rm S}^5$ string theory dual to large $N$, free ${\cal N}=4$ super Yang-Mills in four dimensions. The worldsheet theory is a natural generalisation of the recently investigated tensionless string on ${\rm AdS}_3\times {\rm S}^3\times \mathbb{T}^4$. As in the case of ${\rm AdS}_3$ it has a free field description, with spectrally flowed sectors, and is closely related to an (ambi-)twistor string theory. Here, however, we view it as a critical $N=4$ (closed) string background. We argue that the corresponding worldsheet gauge constraints reduce the degrees of freedom to a finite number of oscillators (string bits) in each spectrally flowed sector. Imposing a set of residual gauge constraints on this reduced oscillator Fock space then determines the physical spectrum of the string theory. Quite remarkably, we find compelling evidence that this prescription reproduces precisely the entire planar spectrum - of single trace operators - of the free super Yang-Mills theory.
description: 4 pages + references and supplementary material; v2: references added and small changes in wording
Hospitalisation risk for COVID-19 patients infected with SARS-CoV-2 variant B.1.1.7: cohort analysis
Creators: name: Nyberg, Tommy
name: Twohig, Katherine A.
name: Harris, Ross J.
name: Seaman, Shaun R.
name: Flannagan, Joe
name: Allen, Hester
name: Charlett, Andre
name: De Angelis, Daniela
name: Dabrera, Gavin
name: Presanis, Anne M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Objective: To evaluate the relationship between coronavirus disease 2019 (COVID-19) diagnosis with SARS-CoV-2 variant B.1.1.7 (also known as Variant of Concern 202012/01) and the risk of hospitalisation compared to diagnosis with wildtype SARS-CoV-2 variants. Design: Retrospective cohort, analysed using stratified Cox regression. Setting: Community-based SARS-CoV-2 testing in England, individually linked with hospitalisation data. Participants: 839,278 laboratory-confirmed COVID-19 patients, of whom 36,233 had been hospitalised within 14 days, tested between 23rd November 2020 and 31st January 2021 and analysed at a laboratory with an available TaqPath assay that enables assessment of S-gene target failure (SGTF). SGTF is a proxy test for the B.1.1.7 variant. Patient data were stratified by age, sex, ethnicity, deprivation, region of residence, and date of positive test. Main outcome measures: Hospitalisation between 1 and 14 days after the first positive SARS-CoV-2 test. Results: 27,710 of 592,409 SGTF patients (4.7%) and 8,523 of 246,869 non-SGTF patients (3.5%) had been hospitalised within 1-14 days. The stratum-adjusted hazard ratio (HR) of hospitalisation was 1.52 (95% confidence interval [CI] 1.47 to 1.57) for COVID-19 patients infected with SGTF variants, compared to those infected with non-SGTF variants. The effect was modified by age (P<0.001), with HRs of 0.93-1.21 for SGTF compared to non-SGTF patients below age 20 years, 1.29 in those aged 20-29, and 1.45-1.65 in age groups 30 years or older. Conclusions: The results suggest that the risk of hospitalisation is higher for individuals infected with the B.1.1.7 variant compared to wildtype SARS-CoV-2, likely reflecting a more severe disease. The higher severity may be specific to adults above the age of 30.
description: 29 pages, 9 figures