cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Universal Spinor Bundle and the Einstein-Dirac-Maxwell Equation as a Variational Theory
Creators: name: Müller, Olaf
name: Nowaczyk, Nikolai
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35L03, 53C27, 58J45, 83C22

description: Not only the Dirac operator, but also the spinor bundle of a pseudo-Riemannian manifold depends on the underlying metric. This leads to technical difficulties in the study of problems where many metrics are involved, for instance in variational theory. We construct a natural finite dimensional bundle, from which all the metric spinor bundles can be recovered including their extra structure. In the Lorentzian case, we also give some applications to Einstein-Dirac-Maxwell theory as a variational theory and show how to coherently define a maximal Cauchy development for this theory.
description: 20 pages, presentation simplified, result about universal Dirac-operator added
Large-Scale Integrated Flexible Tactile Sensor Array for Sensitive Smart Robotic Touch
Creators: name: Zhao, Zhenxuan
name: Tang, Jianshi
name: Yuan, Jian
name: Li, Yijun
name: Dai, Yuan
name: Yao, Jian
name: Zhang, Qingtian
name: Ding, Sanchuan
name: Li, Tingyu
name: Zhang, Ruirui
name: Zheng, Yu
name: Zhang, Zhengyou
name: Qiu, Song
name: Li, Qingwen
name: Gao, Bin
name: Deng, Ning
name: Qian, He
name: Xing, Fei
name: You, Zheng
name: Wu, Huaqiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In the long pursuit of smart robotics, it has been envisioned to empower robots with human-like senses, especially vision and touch. While tremendous progress has been made in image sensors and computer vision over the past decades, the tactile sense abilities are lagging behind due to the lack of large-scale flexible tactile sensor array with high sensitivity, high spatial resolution, and fast response. In this work, we have demonstrated a 64x64 flexible tactile sensor array with a record-high spatial resolution of 0.9 mm (equivalently 28.2 pixels per inch), by integrating a high-performance piezoresistive film (PRF) with a large-area active matrix of carbon nanotube thin-film transistors. PRF with self-formed microstructures exhibited high pressure-sensitivity of ~385 kPa-1 for MWCNTs concentration of 6%, while the 14% one exhibited fast response time of ~3 ms, good linearity, broad detection range beyond 1400 kPa, and excellent cyclability over 3000 cycles. Using this fully integrated tactile sensor array, the footprint maps of an artificial honeybee were clearly identified. Furthermore, we hardware-implemented a smart tactile system by integrating the PRF-based sensor array with a memristor-based computing-in-memory chip to record and recognize handwritten digits and Chinese calligraphy, achieving high classification accuracies of 98.8% and 97.3% in hardware, respectively. The integration of sensor networks with deep learning hardware may enable edge or near-sensor computing with significantly reduced power consumption and latency. Our work could pave the road to building large-scale intelligent sensor networks for next-generation smart robotics.
description: Correction in Methods: The weight ratio of TPU:DMF was set to be 1:5
Beratung als Raum reflexiver Professionalisierung
Creators: name: Ohm, Vanessa
name: Shure, Saphira
Publisher: name: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung.
Year: 2022

description: In dem Beitrag wird Beratung als ein Raum erkundet, der im Kontext der Bildung von (angehenden) Lehrer*innen einen Platz für die kritische Reflexion von Unbestimmtheit und der Bedeutung gesellschaftlicher Verhältnisse für pädagogisches Handeln eröffnen soll. Beratung wird daher als grundlegende pädagogische Handlungsform betrachtet, die letztlich im Rahmen verschiedener Formate (wie Supervision oder Coaching) unterschiedliche Ausdrucksformen findet. In Anlehnung an (sozial-)pädagogische Perspektiven auf Beratung, den strukturtheoretischen Ansatz der Professionalisierung und die migrationspädagogische Perspektive diskutiert der Beitrag Beratung als Raum, der unter anderem durch die strukturierte Konfrontation und Auseinandersetzung mit Nicht-Wissen, der Krisenhaftigkeit pädagogischen Handelns sowie der Eingebundenheit von Lehrer*innen und Schule in die (migrations-)gesellschaftlichen Verhältnisse Professionalisierungsprozesse ermöglicht. Der Beitrag geht der Frage nach, wie Beratung als Raum entworfen werden kann, der als Element einer kritisch-reflexiven Professionalisierung Lehrer*innen in ihrer professionellen Handlungsfähigkeit stärkt, ohne Unbestimmtheit in Bestimmtheit zu wandeln.
description: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung., Bd. 4 Nr. 3 (2022): Beratung und Supervision in der Bildung von Lehrer*innen
Evaluating Feasibility of Using Wireless Sensor Networks in a Coffee Crop Through Simulation of AODV, AOMDV, DSDV and Their Variants with 802.15.4 Mac Protocol
Creators: name: da Cruz, Ederval Pablo Ferreira
name: Gottardo, Luis Eduardo
name: Rossini, Franciele Pereira
name: Oliveira, Vinicius de Souza
name: Pereira, Lucas Cellim
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: A Wireless Sensor Networks is a network formed with sensors that have characteristics to sensor an area to extract a specific metric, depending of the application. We would like to analyse the feasibility to use sensors in a coffee crop. In this work we are evaluating routing protocols using real dimensions and characteristics of a coffee crop. We evaluate, through simulation, AODV, DSDV and AOMDV and two variants known in this work as AODVMOD and AOMDVMOD with 802.15.4 MAC Protocol. For this comparison, we defined three performance metrics: Packet Delivery Ratio (PDR), End -to-End Delay and Average Energy Consumption. Simulation results show that AOMDVMOD overall, outperforms others routing protocols evaluated, showing that is possible to use WSN in a real coffee crop environment.
Island on codimension-two branes in AdS/dCFT
Creators: name: Hu, Peng-Ju
name: Li, Dongqi
name: Miao, Rong-Xin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The previous studies of the island and double holography mainly focus on codimension-one branes. This paper explores the island on the codimension-two brane in AdS/dCFT. The codimension-two brane is closely related to conical singularity, which is very different from the codimension-one brane. We analyze the mass spectrum of gravitons on the codimension-two brane and find that the larger the brane tension is, the smaller the gravitational mass is. The massless mode is forbidden by either the boundary or normalization conditions. We prove that the first massive gravitational mode is located on the codimension-two brane; the larger the tension, the better the localization. It is similar to the case of codimension-one brane and builds an excellent physical foundation for the study of black hole evolution on codimension-two branes. We find that the Page curve of eternal black holes can be recovered due to the island ending on the codimension-two brane. The new feature is that the extremal surface passing the horizon cannot be defined after some finite time in the no-island phase. Fortunately, this unusual situation does not affect the Page curve since it happens after Page time.
description: 46 pages, 20 figures, reference added, minor revision published in JHEP
Universal Quantum Transducers based on Surface Acoustic Waves
Creators: name: Schuetz, Martin J. A.
name: Kessler, Eric M.
name: Giedke, Geza
name: Vandersypen, Lieven M. K.
name: Lukin, Mikhail D.
name: Cirac, J. Ignacio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a universal, on-chip quantum transducer based on surface acoustic waves in piezo-active materials. Because of the intrinsic piezoelectric (and/or magnetostrictive) properties of the material, our approach provides a universal platform capable of coherently linking a broad array of qubits, including quantum dots, trapped ions, nitrogen-vacancy centers or superconducting qubits. The quantized modes of surface acoustic waves lie in the gigahertz range, can be strongly confined close to the surface in phononic cavities and guided in acoustic waveguides. We show that this type of surface acoustic excitations can be utilized efficiently as a quantum bus, serving as an on-chip, mechanical cavity-QED equivalent of microwave photons and enabling long-range coupling of a wide range of qubits.
description: Manuscript: 8 pages, 3 figures. Appendices: 17 pages, 12 figures. v2: version as published, Journal-Ref added
Praktische Theorie
Creators: name: Beier, Frank
name: Wagner, Elisa
Publisher: name: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung.
Year: 2022

description: Aufbauend auf dem aktuellen Stand der Forschung zur Theorie-Praxis Vermittlung in der Lehrer*innenbildung in Deutschland wird das Potenzial autonomer Praxiserfahrungen für die akademische Ausbildung diskutiert. Am Beispiel des Projektes „Stark und fit durch Mathematik“ an der TU Dresden wird erläutert, wie Studierende in sozial stark belasteten Schulen als Unterstützer*innen tätig werden, indem sie spezielle Förderangebote für rechenschwache Kinder anbieten. Damit werden die Studierenden primär nicht als Lernende, sondern als kompetente Unterstützer*innen adressiert. Parallel zu der Förderung absolvieren die Studierenden ein Hochschulseminar, in dessen Rahmen sie in den aktuellen Stand der Forschung eingeführt werden. In der durchgeführten qualitativen Begleitstudie konnte einerseits eine hohe subjektiv wahrgenommene Kohärenz von Theorie und Praxis festgestellt werden, die jedoch einer unterschiedlichen Strukturlogik folgt: Während die Praxis einerseits als Teil der akademischen Ausbildung als kumulativer Lernprozess verstanden wird, empfinden andere Studierende diese als biografisch gewachsene Entwicklungsaufgabe, die es zu bewältigen gilt. Je nach Typus ergibt sich ein unterschiedlicher Unterstützungsbedarf.
description: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung., Bd. 4 Nr. 3 (2022): Beratung und Supervision in der Bildung von Lehrer*innen
Ibogaine treatment outcomes for opioid dependence from a twelve-month follow-up observational study
Creators: name: Noller, Geoffrey E.
name: Frampton, Chris M.
name: Yazar-Klosinski, Berra
Publisher: name: Figshare
Year: 2017
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Background: The psychoactive indole alkaloid ibogaine has been associated with encouraging treatment outcomes for opioid dependence. The legal status of ibogaine in New Zealand provides a unique opportunity to evaluate durability of treatment outcomes. Objective: To examine longitudinal treatment effects over a 12-month period among individuals receiving legal ibogaine treatment for opioid dependence. Method: This observational study measured addiction severity as the primary outcome in 14 participants (50% female) over 12 months post-treatment using the Addiction Severity Index-Lite (ASI-Lite) following a single ibogaine treatment by either of two treatment providers. Secondary effects on depression were assessed via the Beck Depression Inventory-II (BDI-II). The Subjective Opioid Withdrawal Scale (SOWS) was collected before and immediately after treatment to measure opioid withdrawal symptoms. Results: Nonparametric comparisons via Friedman Test between baseline and 12-month follow-up for participants completing all interviews (n = 8) showed a significant reduction for the ASI-Lite drug use (p = 0.002) composite score. Reductions in BDI-II scores from baseline to 12-month follow-up were also significant (p < 0.001). Significant reductions in SOWS scores for all participants (n = 14) were also observed acutely after treatment (p = 0.015). Patients with partial data (n = 4) also showed reductions in ASI-Lite drug use scores and family/social status problems. One patient enrolled in the study died during treatment. Conclusion: A single ibogaine treatment reduced opioid withdrawal symptoms and achieved opioid cessation or sustained reduced use in dependent individuals as measured over 12 months. Ibogaine’s legal availability in New Zealand may offer improved outcomes where legislation supports treatment providers to work closely with other health professionals.
Feasibility of observing Hanbury Brown and Twiss phase
Creators: name: Wentz, Tina
name: Saha, Prasenjit
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The interferometers of Hanbury Brown and collaborators in the 1950s and 60s, and their modern descendants now being developed (intensity interferometers) measure the spatial power spectrum of the source from intensity correlations at two points. The quantum optical theory of the Hanbury Brown and Twiss (HBT) effect shows that more is possible, in particular the phase information can be recovered by correlating intensities at three points (bispectrum). In this paper we argue that such 3 point measurements are possible for bright stars such as Sirius and Betelgeuse using off the shelf single photon counters with collecting areas of the order of 100m2. It seems possible to map individual features on the stellar surface. Simple diameter measurements would be possible with amateur class telescopes.
description: To appear in MNRAS
หนังสือเสียง : สื่อการเรียนรู้พื้นฐานสำหรับเด็กที่มีความบกพร่องทางการเห็น
Creators: name: ณัฐญา นาคะสันต์
Publisher: name: มหาวิทยาลัยนอร์ทกรุงเทพ
Year: 2566
Subjects: เด็กที่มีความบกพร่องทางการเห็น
หนังสือเสียง

description: วารสารวิชาการ มหาวิทยาลัยนอร์ทกรุงเทพ, 12, 1, 1-10
The challenge of ruling out inflation via the primordial graviton background
Creators: name: Vagnozzi, Sunny
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent debates around the testability of the inflationary paradigm raise the question of how to model-independently discriminate it from competing scenarios. We argue that a detection of the Cosmic Graviton Background (CGB), the relic radiation from gravitons decoupling around the Planck time, would rule out the inflationary paradigm, as realistic inflationary models would dilute the CGB to an unobservable level. The CGB contribution to the effective number of relativistic species, $ΔN_{{\rm eff},g} \approx 0.054$, is well within the reach of next-generation cosmological probes. We argue that detecting the high-frequency stochastic gravitational wave background associated to the CGB will be challenging but potentially feasible. We briefly discuss expectations within alternatives to inflation, focusing on bouncing cosmologies and emergent scenarios.
description: 7 pages, 1 figure. v2: added further discussions on underlying assumptions, added references, matches version accepted for publication in ApJ Letters
Analysis of Galactic Rotation from Masers based on a Nonlinear Oort Model
Creators: name: Bobylev, V. V.
name: Bajkova, A. T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Based on data on Galactic masers with measured trigonometric parallaxes, we have tested a nonlinear model of Galactic rotation using generalized Oort formulas. This model is shown to yield pretty good results up to heliocentric distances of 3--4 kpc. The main feature of the method is the possibility of estimating the solar Galactocentric distance Ro. This distance has been found by analyzing approximately 60 masers to be Ro=8.3+/-0.4 kpc. Our study of the three-dimensional kinematics of more than 100 masers based on the Ogorodnikov--Milne model has shown that significant nonlinearities are present only in the xy plane (rotation around the Galactic z axis) due to the peculiarities of the Galactic rotation curve. No significant linear dependences have been found in the xz and yz planes. We show the presence of a wave in the velocities w as a function of coordinate x or distance R with a wavelength of 3 kpc and an amplitude of 10 km/s. The wave is particularly prominent in the Local and Perseus arms.
description: 14 pages, 6 figures. arXiv admin note: text overlap with arXiv:1406.0699
Efficient Probabilistic Computing with Stochastic Perovskite Nickelates
Creators: name: Park, Tae Joon
name: Selcuk, Kemal
name: Zhang, Hai-Tian
name: Manna, Sukriti
name: Batra, Rohit
name: Wang, Qi
name: Yu, Haoming
name: Sankaranarayanan, Subramanian K. R. S.
name: Zhou, Hua
name: Camsari, Kerem Y.
name: Ramanathan, Shriram
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Probabilistic computing has emerged as a viable approach to solve hard optimization problems. Devices with inherent stochasticity can greatly simplify their implementation in electronic hardware. Here, we demonstrate intrinsic stochastic resistance switching controlled via electric fields in perovskite nickelates doped with hydrogen. The ability of hydrogen ions to reside in various metastable configurations in the lattice leads to a distribution of transport gaps. With experimentally characterized p-bits, a shared-synapse p-bit architecture demonstrates highly-parallelized and energy-efficient solutions to optimization problems such as integer factorization and Boolean-satisfiability. The results introduce perovskite nickelates as scalable potential candidates for probabilistic computing and showcase the potential of light-element dopants in next-generation correlated semiconductors.
title: Finite-rate combustion models for Large Eddy Simulation of non-premixed combustion; An a priori DNS analysis
Creators: name: Shamooni Pour Dezfouli, Ali
Publisher: name: UNSPECIFIED
Year: 2020

description: Turbulence and chemistry interaction (TCI) is still an open problem in the combustion science. Models are needed to account for the unclosed chemistry source terms when the averaged or filtered Navier-Stokes governing equations are solved for chemical species in reactive flows. Finite-rate (FR) combustion models attempting to model the low-pass filtered production/consumption rates (in the case of Large Eddy Simulation or LES) directly. The Eddy Dissipation Concept (EDC) and Scale Similarity (SS) models are two types of FR combustion models for LES. The aim of the study is to assess and improve the performance of the two mentioned models using Direct Numerical Simulation (DNS) databases. In DNS all flow and chemistry scales are resolved and no TCI modeling is required. The DNS databases of reactive flows with relatively detailed chemistry, which are now available thanks to massively large parallel computational tools and codes, can be utilized to both gain fundamental insights on the turbulent reactive flows and directly assess TCI models. The assessment can be through a priori and a posterior DNS analyses. In the current work, fundamental analyses are carried out, using DNS databases of non-premixed jet flames, on the spectral behavior (velocity and dissipation of kinetic energy spectra) and the internal intermittency phenomenon in this type of flames. The physical findings are applied to develop new FR combustion models for LES. In particular, Eddy Dissipation Concept (EDC) is improved by the modifications on the coefficients and the intermittency factor of the model. The modification on the coefficients follows a theoretical basis in which the new findings on spectral behavior have been applied to reduce the degree of freedom of the model by relating the two free coefficients of the model. On the other hand, the modification in the intermittency factor of EDC is the direct application of the observations in the scaling of dissipation fluctuations. The new EDC models are then a priori assessed using the DNS databases. Besides, the existing Scale Similarity (SS) models for LES are a priori assessed using the DNS databases and new dynamic SS models are developed based on Germano's identity for LES and further assessed using the a priori DNS analysis.
Phytochemical components, total phenol and mineral contents and antioxidant activity of six major medicinal plants from Rayen, Iran
Creators: name: Boroomand, Naser
name: Sadat-Hosseini, Mohammad
name: Moghbeli, Mojtaba
name: Farajpour, Mostafa
Publisher: name: Figshare
Year: 2017
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: The aim of this work was to evaluate the phytochemical components, minerals, the antioxidant activity and total phenol contents of the essential oil from aerial parts of six major medicinal plants in Rayen, Iran. The plants included Ranunculus arvensis, Teucrium polium, Dracocephalum polychaetum, Kelussia odoratissima, Artemisia sieberi and Thymus kotschyanus. Total phenol content ranged from 0.03 to 0.158 mg/mL. A. sieberi showed the highest radical scavenging ability (IC50 = 94 μg/mL). The amount of minerals ranged as follows: P (0.23–29%), K (1.08–4.76%), Ca (0.78–2.35%), Mg (0.24–0.94%), Cu (8.3–15 mg/kg), Cd (0.7–1.1 mg/kg), Pb (2–11.7 mg/kg) and Fe (250–1280 mg/kg). A total of 79 compounds were identified across all plants. The main components studied in the plants were l-perillaldehyde, biosol, carvacrol, 1,8-cineol, terpinyl acetate and 1,2,3,6,7,7 a-hexahydro-5 h-inden 5-one.
เทคนิคการเลือกตัวอย่างและการกำหนดขนาดกลุ่มตัวอย่างในการวิจัย
Creators: name: ไพฑูรย์ โพธิสาร
Publisher: name: มหาวิทยาลัยนอร์ทกรุงเทพ
Year: 2566
Subjects: ความเที่ยงตรงภายนอก
ประชากรและตัวอย่าง
เทคนิคการเลือกตัวอย่าง
ขนาดกลุ่มตัวอย่าง

description: วารสารวิชาการ มหาวิทยาลัยนอร์ทกรุงเทพ, 12, 1, 11-20
Katalog.plus! Die integrierte Suchumgebung der Universitätsbibliothek Bielefeld
Creators: name: Pieper, Dirk
name: Pietsch, Christian
name: Summann, Friedrich
Publisher: name: Kolloquium Wissensinfrastruktur
Year: 2014

description: Schulungstermin
description: Kolloquium Wissensinfrastruktur, Sommersemester 2014
I'm stuck! How to efficiently debug computational solid mechanics models so you can enjoy the beauty of simulations
Creators: name: Comellas, Ester
name: Pelteret, Jean-Paul
name: Bangerth, Wolfgang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Mathematical Software (cs.MS)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: A substantial fraction of the time that computational modellers dedicate to developing their models is actually spent trouble-shooting and debugging their code. However, how this process unfolds is seldom spoken about, maybe because it is hard to articulate as it relies mostly on the mental catalogues we have built with the experience of past failures. To help newcomers to the field of material modelling, here we attempt to fill this gap and provide a perspective on how to identify and fix mistakes in computational solid mechanics models. To this aim, we describe the components that make up such a model and then identify possible sources of errors. In practice, finding mistakes is often better done by considering the symptoms of what is going wrong. As a consequence, we provide strategies to narrow down where in the model the problem may be, based on observation and a catalogue of frequent causes of observed errors. In a final section, we also discuss how one-time bug-free models can be kept bug-free in view of the fact that computational models are typically under continual development. We hope that this collection of approaches and suggestions serves as a "road map" to find and fix mistakes in computational models, and more importantly, keep the problems solved so that modellers can enjoy the beauty of material modelling and simulation.
description: 13 pages, 2 figures, accepted manuscript to be published in VSI:Joy of Mechanics of the European Journal of Mechanics / A Solids. Replacement of 2209.04198. Main changes w.r.t. preprint version are addition of sec 3.1.3; footnote 3 in sec 3.1.4, sec 3.1.6, final pargraph in sec 4.1.1 and sec 4.1.3
Chiral magnetism, lattice dynamics, and anomalous Hall conductivity in the novel V$_3$AuN antiferromagnetic antiperovskite
Creators: name: Duran-Pinilla, J. M.
name: Romero, Aldo H.
name: Garcia-Castro, A. C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Antiferromagnetic antiperovskites, where magnetically active 3$d$ metal cations are placed in the octahedral corners of a perovskite structure, are in the spotlight due to their intertwined magnetic structure and topological properties. Especially their anomalous Hall conductivity, which can be controlled by applied strain and/or electric field, makes them highly attractive in different electronic applications. Here, we present the study and theoretical understanding of a new antiperovskite compound that can offer enormous opportunities in a broad set of applications. Using first-principles calculations, we investigated the structure, lattice dynamics, noncollinear magnetic ordering, and electronic behavior in the Vanadium-based antiperovskite V$_3$AuN. We found an antiperovskite structure centered on N similar to the Mn$_3A$N family as the structural ground state. In such a phase, a \emph{Pm$\bar{3}$m} ground state was found in contrast to the \emph{Cmcm} post-antiperovskite layered structure, as in the V$_3A$N, $A$ = Ga, Ge, As, and P. We studied the lattice dynamics and electronic properties, demonstrating its vibrational stability in the cubic structure and a chiral antiferromagnetic noncollinear ordering as a magnetic ground state. Finally, we found that the anomalous Hall conductivity, associated with the topological features induced by the magnetic symmetry, is $σ_{xy}$ = $-$291 S$\cdot$cm$^{-1}$ ($σ_{111}$ = $-$504 S$\cdot$cm$^{-1}$). The latter is the largest reported in the antiferromagnetic antiperovskite family of compounds.
Bedarfe und Umsetzung einer Kollegialen Coachingmaßnahme für Schulaufsichtsbeamt*innen als schulische Führungskräfte
Creators: name: Völschau, Yvette
name: Hübner, Catharina
Publisher: name: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung.
Year: 2022

description: Dieser Beitrag befasst sich mit der Professionalisierung von Schulaufsichtsbeamt*innen und fokussiert damit eine bislang wissenschaftlich wenig thematisierte Gruppe von Führungskräften. Schulaufsichtsbeamt*innen übernehmen neben Kontrollaufgaben vor allem Beratungs- und Unterstützungsaufgaben für Schulen und befassen sich mit pädagogischen und organisatorischen Fragen. Eine in Nordrhein-Westfalen auf diese Tätigkeit vorbereitende Qualifizierungsmaßnahme zu zentralen Themen qualifiziert jedoch kaum explizit zu Beratungskompetenzen und Reflexionsformaten für diese Tätigkeit, die in hohem Maße den Anspruch verfolgt, möglichst gemeinsam und auf Augenhöhe mit Schulleitungen etc. die Qualität schulischer Prozesse zu reflektieren, zu begleiten und zu sichern. Seit 2019 wird daher im Rahmen einer Pilotmaßnahme ein Angebot „Kollegiales Coaching für Angehörige der Schulaufsicht“ durchgeführt, dass die kollegiale Unterstützung dieser Leitungskräfte in ihrem alltäglichen Leitungshandeln zum Ziel hat. Der folgende Beitrag beschreibt neben ausführlichen hinführenden Auseinandersetzungen zum Themenrahmen sowohl daraus abgeleitete Bedarfe dieser Zielgruppe als auch das Setting des Verfahrens, das auf den theoretischen Grundannahmen des Forschungsprogramms Subjektive Theorien (vgl. Groeben et al., 1988) fußt. Zudem werden erste interne Evaluationsergebnisse angeführt und mögliche Schlussfolgerungen für die Fort- und Weiterbildung von Schulaufsichtsbeamt*innen gezogen.
description: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung., Bd. 4 Nr. 3 (2022): Beratung und Supervision in der Bildung von Lehrer*innen
Additional file 3: of Posttranslationally modified progesterone receptors direct ligand-specific expression of breast cancer stem cell-associated gene programs
Creators: name: Knutson, Todd
name: Truong, Thu
name: Shihong Ma
name: Brady, Nicholas
name: Sullivan, Megan
name: Raj, Ganesh
name: Schwertfeger, Kathryn
name: Lange, Carol
Publisher: name: Figshare
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology
subject: Computational Biology

description: Gene set enrichment analysis (GSEA) in T47D breast cancer cells comparing KR + progestin vs. WT + progestin treatment groups. GSEA identified significantly regulated gene sets in the KR + progestin samples when compared to the WT + progestin samples. Five gene sets from the c3 MSigDB collection and one from the c6 collection are shown: (A) genes containing PR DNA binding motifs, (B) genes upregulated after ERBB2 overexpression in MCF-7 cells, (C) genes containing androgen receptor DNA binding motifs, (D) genes containing PAX family DNA binding motifs, (E) genes containing AHR/ARNT DNA binding motifs, and (F) genes containing AML1/RUNX binding motifs. These upregulated gene sets contain (respective) DNA binding motifs (above) near their transcriptional start sites, suggesting that these factors are important co-transcriptional regulators with PR in T47D cells expressing Ser294/SUMO-deficient PR (KR), compared to WT PR. (PDF 257Â kb)
แนวทางการจัดการการให้บริการผู้สูงอายุติดเตียงในประเทศไทย
Creators: name: เกรียงไกร กลิ่นทอง
Publisher: name: มหาวิทยาลัยนอร์ทกรุงเทพ
Year: 2566
Subjects: ผู้สูงอายุ
ผู้สูงอายุติดเตียง
การให้บริการ
ผู้บริหารระดับองค์กรปกครองส่วนท้องถิ่น

description: วารสารวิชาการ มหาวิทยาลัยนอร์ทกรุงเทพ, 12, 1, 21-37
Probing the Physics of Narrow Line Regions in Active Galaxies III: Accretion and Cocoon Shocks in the LINER NGC1052
Creators: name: Dopita, Michael A.
name: Ho, I-Ting
name: Dressell, Linda L.
name: Sutherland, Ralph
name: Kewley, Lisa
name: Davies, Rebecca
name: Hampton, Elise
name: Shastri, Prajval
name: Kharb, Preeti
name: Jose, Jessy
name: Bhatt, Harish
name: Ramya, S.
name: Scharwächter, Julia
name: Jin, Chichuan
name: Banfield, Julie
name: Zaw, Ingyin
name: James, Bethan
name: Juneau, Stéphanie
name: Srivastava, Shweta
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present Wide Field Spectrograph (WiFeS) integral field spectroscopy and HST FOS spectroscopy for the LINER galaxy NGC 1052. We infer the presence of a turbulent accretion flow forming a small-scale accretion disk. We find a large-scale outflow and ionisation cone along the minor axis of the galaxy. Part of this outflow region is photoionised by the AGN, and shares properties with the ENLR of Seyfert galaxies, but the inner ($R \lesssim 1.0$~arcsec) accretion disk and the region around the radio jet appear shock excited. The emission line properties can be modelled by a "double shock" model in which the accretion flow first passes through an accretion shock in the presence of a hard X-ray radiation, and the accretion disk is then processed through a cocoon shock driven by the overpressure of the radio jets. This model explains the observation of two distinct densities ($\sim10^4$ and $\sim10^6$ cm$^{-3}$), and provides a good fit to the observed emission line spectrum. We derive estimates for the velocities of the two shock components and their mixing fractions, the black hole mass, the accretion rate needed to sustain the LINER emission and derive an estimate for the jet power. Our emission line model is remarkably robust against variation of input parameters, and so offers a generic explanation for the excitation of LINER galaxies, including those of spiral type such as NGC 3031 (M81).
description: Accepted for publication in Astrophysical Journal. 16 pages, 12 figures
Supervision in der Lehrer*innenbildung
Creators: name: Rhein, Rüdiger
Publisher: name: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung.
Year: 2022

description: Der Beitrag entwirft eine theoretische Skizze zur systematischen Verortung von Supervision in der Lehrer*innenbildung. Diese Skizze erfordert allgemeine Maßstabsebenen, von denen ausgehend eine solche Verortung substanziell ausweisbar ist. Damit zeichnet sich zugleich ein konzeptioneller Deutungshorizont für ein empirisch-rekonstruktives Forschungsprogramm über Supervision in der Lehrer*innenbildung ab. Im Konkreten erörtert der Beitrag die Leistung von Supervision in der Lehrer*innenbildung als Begleitung der Reflexion auf pädagogische Praxis und damit als professionsbezogene Theorie-Praxis-Vermittlung.
description: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung., Bd. 4 Nr. 3 (2022): Beratung und Supervision in der Bildung von Lehrer*innen
สมรรถนะผู้บริหารสถานศึกษาขั้นพื้นฐานที่สอดคล้องกับเป้าหมายการศึกษาของนโยบายไทยแลนด์ 4.0 ของโรงเรียนมาตรฐานสากลในกลุ่มร้อยแก่นสารสินธุ์
Creators: name: ขอบฟ้า จันทร์เจริญ
Publisher: name: มหาวิทยาลัยนอร์ทกรุงเทพ
Year: 2566
Subjects: สมรรถนะผู้บริหารสถานศึกษา
ไทยแลนด์ 4.0
บริหารโรงเรียนมาตรฐานสากล
กลุ่มร้อยแก่นสารสินธุ์

description: วารสารวิชาการ มหาวิทยาลัยนอร์ทกรุงเทพ, 12, 1, 38-49
On Detecting Nearby Nano-Hertz Gravitational Wave Sources via Pulsar Timing Arrays
Creators: name: Guo, Xiao
name: Lu, Youjun
name: Yu, Qingjuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Massive binary black holes (MBBHs) in nearby galactic centers, if any, may be nano-Hertz gravitational wave (GW) sources for pulsar timing arrays (PTAs) to detect. Normally the objective GWs for PTA experiments are approximated as plane waves because its sources are presumably located faraway. For nearby GW sources, however, this approximation may be inaccurate due to the curved GW wave front and the GW strength changes along the paths of PTA pulsar pulses. In this paper, we analyze the near-field effect in the PTA detection of nearby sources and find it is important if the source distance is less than a few tens Mpc, and ignoring this effect may lead to a significant signal-to-noise underestimation especially when the source distance is comparable to the pulsar distances. As examples, we assume a nano-Hertz MBBH source located at either the Galactic Center (GC) or the Large Magellanic Cloud (LMC) according to the observational constraints/hints on the MBBH parameter space, and estimate its detectability by current/future PTAs. We find that the GC MBBH may be detectable by the Square Kilometer Array (SKA) PTA. It is challenging for detecting the LMC MBBH; however, if a number ($N\gtrsim10$) of stable millisecond pulsars can be found in the LMC center, the MBBH may be detectable via a PTA formed by these pulsars. We further illustrate the near-field effects on the PTA detection of an isotropic GW background contributed mainly by nearby GW sources, and the resulting angular correlation is similar to the Hellings-Downs curve.
description: 24 pages, 11 figures, accepted for publication in The Astrophysical Journal
Ownership concentration, risk management committee and hedging activity disclosure: A Malaysian case
Creators: name: Abdullah, Azrul
name: Norshamshina Mat Isa
name: Hamdan Mat Isa
name: Triwastuti, Ria
Publisher: name: figshare
Year: 2020
Subjects: subject: 150101 Accounting Theory and Standards
subject: FOS: Economics and business
subject: 150199 Accounting, Auditing and Accountability not elsewhere classified
subject: 150303 Corporate Governance and Stakeholder Engagement
subject: 150103 Financial Accounting

description: The aim of this study is to contribute to the growing literature on the quality of accounting information disclosures related to hedging activities. Unlike previous studies, this study examined the influence of ownership concentrations on the relationship between risk management committee (RMC) effectiveness and hedging activities disclosures (HAD). Based on a sample of 166 public listed companies in Malaysia, the regression results indicated that ownership concentration did not have any significant relationship with the RMC's effectiveness in influencing the extent of HAD. However, there was little evidence to suggest that the RMC enhanced the extent of HAD when there was interference from concentrated family owners. The results from this study provided limited support for the hypothesised moderation effect based on agency and resource dependency theories which suggested a new bearing in the current literature on the association between ownership structure and RMC on the financial instrument disclosure employed by companies. Consequently, this study perceived that other researchers expanded their current understanding of accounting and reporting practices for derivatives on the impact of concentrated ownership on the extent of financial instrument disclosure which many previous Malaysian studies had failed to include in their discussion.
Prime Match: A Privacy-Preserving Inventory Matching System
Creators: name: Polychroniadou, Antigoni
name: Asharov, Gilad
name: Diamond, Benjamin
name: Balch, Tucker
name: Buehler, Hans
name: Hua, Richard
name: Gu, Suwen
name: Gimler, Greg
name: Veloso, Manuela
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: General Economics (econ.GN)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Inventory matching is a standard mechanism/auction for trading financial stocks by which buyers and sellers can be paired. In the financial world, banks often undertake the task of finding such matches between their clients. The related stocks can be traded without adversely impacting the market price for either client. If matches between clients are found, the bank can offer the trade at advantageous rates. If no match is found, the parties have to buy or sell the stock in the public market, which introduces additional costs. A problem with the process as it is presently conducted is that the involved parties must share their order to buy or sell a particular stock, along with the intended quantity (number of shares), to the bank. Clients worry that if this information were to leak somehow, then other market participants would become aware of their intentions and thus cause the price to move adversely against them before their transaction finalizes. We provide a solution, Prime Match, that enables clients to match their orders efficiently with reduced market impact while maintaining privacy. In the case where there are no matches, no information is revealed. Our main cryptographic innovation is a two-round secure linear comparison protocol for computing the minimum between two quantities without preprocessing and with malicious security, which can be of independent interest. We report benchmarks of our Prime Match system, which runs in production and is adopted by J.P. Morgan. The system is designed utilizing a star topology network, which provides clients with a centralized node (the bank) as an alternative to the idealized assumption of point-to-point connections, which would be impractical and undesired for the clients to implement in reality. Prime Match is the first secure multiparty computation solution running live in the traditional financial world.
description: 27 pages, 7 figures, USENIX Security 2023
Critical Casimir forces in the presence of random surface fields
Creators: name: Maciolek, A.
name: Vasilyev, O.
name: Dotsenko, V.
name: Dietrich, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study critical Casimir forces (CCF) $f_{\mathrm C}$ for films of thickness $L$ which in the three-dimensional bulk belong to the Ising universality class and which are exposed to random surface fields (RSF) on both surfaces. We consider the case that, in the absence of RSF, the surfaces of the film belong to the surface universality class of the so-called ordinary transition. We carry out a finite-size scaling analysis and show that for weak disorder CCF still exhibit scaling, acquiring a random field scaling variable $w$ which is zero for pure systems. We confirm these analytic predictions by MC simulations. Moreover, our MC data show that $f_{\mathrm C}$ varies as $f_{\mathrm C}(w\to 0)-f_{\mathrm C}(w=0)\sim w^2$. Asymptotically, for large $L$, $w$ scales as $w \sim L^{-0.26} \to 0$ indicating that this type of disorder is an irrelevant perturbation of the ordinary surface universality class. However, for thin films such that $w \simeq 1$, we find that the presence of RSF with vanishing mean value increases significantly the strength of CCF, as compared to systems without them, and shifts the extremum of the scaling function of $f_{\mathrm C}$ towards lower temperatures. But $f_{\mathrm C}$ remains attractive.
description: 20 pages, 3 figures
The Struggle over Adat Forest Rights in Upland Banten, Indonesia
Creators: name: Affandi, Dean Yulindra
Publisher: name: Figshare
Year: 2017
Subjects: subject: 160499 Human Geography not elsewhere classified
subject: FOS: Social and economic geography

description: This study
investigates local institutional arrangements and the regulation of forest
access and control in the wake of the 2013 decision of the Indonesian Constitutional
Court, which recognised indigenous peoples’ rights over forest territory. The
research focuses on the interactions between adat groups and other actors in
that context, with specific attention to the Kasepuhan indigenous communities
of West Java. There has been considerable political ecology scholarship about
state-society-nature relations in Indonesia; this research contributes to this
knowledge base by extending political ecology analysis to the entirely new
situation that is unfolding in the wake of the court decision. As such, this
research interrogates ongoing changes by employing the concept of institutional
bricolage as a tool for understanding just how institutional alterations occur
and how these mediate resource access and entitlements.

   For the greater part of Indonesian history, indigenous
communities in Indonesia have been trying without success to assert their
traditional rights and redefine their place in Indonesian statehood. Adat
rights have, however, been severely undermined for the sake of development or
other ‘national interest’. The political efflorescence popularly known as
Reformasi has, since 1998, opened the channel for many disenfranchised groups,
such as indigenous peoples, to demand social justice. In the case of the Kasepuhan
indigenous group, these demands have concerned their communal rights over land
and forest territories. Nearly two decades after Reformasi, the Court’s 2013
decision has invalidated the notion that the state is the the sole owner and
manager of Indonesia’s forest areas. It has brought new hope for indigenous
communities all over the country, as it potentially acknowledges their
exclusive rights over specific plots of land or forest.

   This study describes and analyses the practical implications
of the Court’s ruling. The study shows that the Kasepuhan people have acted as
innovative bricoleurs who patch together elements of different institutional
logics available to them. This, in turn, leads to novel institutional
arrangements, and to a bylaw that excises parts of the Gunung Halimun-Salak
National Park in their favour. This is an unprecedented development for an adat
entity in the country. The thesis unpacks the dynamics of the institutional
arrangements between the Kasepuhan people and other actors involved in
state-society-nature relations in Indonesia.
Spin-orbit coupling and electronic charge effects in Mott insulators
Creators: name: Zhu, Shan
name: Li, You-Quan
name: Batista, Cristian D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We derive the effective charge- and current-density operators for the strong-coupling limit of a single-band Mott insulator in the presence of spin-orbit coupling and show that the spin-orbit contribution to the effective charge density leads to novel mechanisms for multiferroic behavior. In some sense, these mechanisms are the electronic counterpart of the ionic-based mechanisms, which have been proposed for explaining the electric polarization induced by spiral spin orderings. The new electronic mechanisms are illustrated by considering cycloidal and proper screw magnetic orderings on sawtooth and kagome lattices. As for the isotropic case, geometric frustration is crucial for achieving this purely electronic coupling between spin and charge degrees of freedom.