cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A pilot study on the correlation between fat fraction values and glucose uptake values in supraclavicular fat by simultaneous PET/MRI
Creators: name: McCallister, A.
name: Katz, L.
name: Zhang, L.
name: Burant, A.
name: Branca, R.T.
Publisher: name: John Wiley and Sons Inc
Year: 2017

description: Purpose: To assess the spatial correlation between MRI and 18F-fludeoxyglucose positron emission tomography (FDG-PET) maps of human brown adipose tissue (BAT) and to measure differences in fat fraction (FF) between glucose avid and non-avid regions of the supraclavicular fat depot using a hybrid FDG-PET/MR scanner. Methods: In 16 healthy volunteers, mean age of 30 and body mass index of 26, FF, R2*, and FDG uptake maps were acquired simultaneously using a hybrid PET/MR system while employing an individualized cooling protocol to maximally stimulate BAT. Results: Fourteen of the 16 volunteers reported BAT-positive FDG-PET scans. MR FF maps of BAT correlate well with combined FDG-PET/MR maps of BAT only in subjects with intense glucose uptake. The results indicate that the extent of the spatial correlation positively correlates with maximum FDG uptake in the supraclavicular fat depot. No consistent, significant differences were found in FF or R2* between FDG avid and non-avid supraclavicular fat regions. In a few FDG-positive subjects, a small but significant linear decrease in BAT FF was observed during BAT stimulation. Conclusion: MR FF, when used in conjunction with FDG uptake maps, can be seen as a valuable, radiation-free alternative to CT and can be used to measure tissue hydration and lipid consumption in some subjects.
Remarks on the light ring images and the optical appearance of hairy black holes in Einstein-Maxwell-dilaton gravity
Creators: name: Promsiri, Chatchai
name: Horinouchi, Weerawit
name: Hirunsirisawat, Ekapong
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The behaviors of null geodesics in the spherical symmetric black holes in Einstein-Maxwell-dilaton (EMD) theory with coupling function $f(Φ)=e^{-2αΦ}$ are meticulously analyzed. We investigate the effects of coupling constant $α$ on the effective potential of photon trajectories within three ranges, namely $0<α<1$, $α=1$ and $α>1$. We find that the thicknesses of lensing and photon rings are smaller at larger $α$ and fixed electric charge in the unit of mass $q$, whereas they are larger at fixed $α$ and larger $q$. This behavior can be described by using the angular Lyapunov exponent $γ$ in the vicinity of the critical curve. Remarkably, the behaviors of photon trajectories are found to be more interesting when $α>1$. Namely, the radius of the black hole shadow $R_\text{s}$ becomes to be smaller than the photon sphere radius $r_\text{ph}$ when $α> 1$ and $q>q^*$. Moreover, $R_\text{s}$ goes to zero as $q$ saturates the extremal limit, beyond which the photon orbit becomes absent. Furthermore, we construct the optical appearance of black holes surrounded by optically and geometrically thin accretion disk with three cases of Gralla-Lupsasca-Marrone (GLM) emission profile. Our results indicate that the observed flux originating from the lensing and photon rings exhibits suppression as $α$ increases, while it undergoes amplification with the increasing parameter $q$.
description: v3: Accretion disk profile has been changed to the Gralla-Lupsasca-Marrone (GLM) emission profile. Appendix B: Null Energy Condition and Focusing Theorem has been added. The angular Lyapunov exponent is applied to discuss the thickness of the photon ring
(500940) Sarah A. [Wickham]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
OPEUS D9.1 - Common approach with S2R
Creators: name: Partner-UNEW
Publisher: name: Zenodo
Year: 2017

description: This report forms OPEUS project Deliverable 9.1, providing a summary of the agreed actions to align the Modelling and strategies for the assessment and OPtimisation of Energy USage aspects of rail innovation (OPEUS) project (Grant Agreement 730827) with the wider S2R programme including interaction with FINE 1, the project resulting from call identifier S2R-CFM-CCA-02-2015. This document complements all other important documents such as the EC Grant Agreement number 730827 and its Annexes, the Collaboration Agreement between OPEUS project and FINE1 project (Grant Agreement 730818) and the various EC guidelines which, in case of conflict or uncertainty, supersede this document. After introducing the OPEUS project and the objectives of the Deliverable, this report is presented in 3 main sections. The first section explains how the OPEUS aligns with the S2RJU programme as a whole, including its contribution to the S2R Strategic Master Plan and the Multi Annual Action Plan. The second section explains the alignment of the OPEUS project with FINE1, the project resulting from the complementary CFM call topic. It elaborates how the two projects, supported by a Collaboration Agreement, work closely together to ensure the most effective, efficient and economical implementation of their work, including liaison over common Deliverables, as well the reciprocal participation to each other’s technical management expert groups. The final section depicts how OPEUS developed its Advisory Board to maximise project impact, bring the influence of industry stakeholders to the project and highlights the involvement of both S2RJU and FINE1 representatives.
Accurate MR thermometry by hyperpolarized 129Xe
Creators: name: McCallister, A.
name: Koshlap, K.M.
name: Zhang, L.
name: Degan, S.
name: Burant, A.
name: Antonacci, M.
name: Zhao, V.
name: Branca, R.T.
Publisher: name: John Wiley and Sons Inc
Year: 2017

description: Purpose: To investigate the temperature dependence of the resonance frequency of lipid-dissolved xenon (LDX) and to assess the accuracy of LDX-based MR thermometry. Methods: The chemical shift temperature dependence of water protons, methylene protons, and LDX was measured from samples containing tissues with varying fat contents using a high-resolution NMR spectrometer. LDX results were then used to acquire relative and absolute temperature maps in vivo and the results were compared with PRF-based MR thermometry. Results: The temperature dependence of proton resonance frequency (PRF) is strongly affected by the specific distribution of water and fat. A redistribution of water and fat compartments can reduce the apparent temperature dependence of the water chemical shift from −0.01 ppm/°C to −0.006 ppm, whereas the LDX chemical shift shows a consistent temperature dependence of −0.21 ppm/°C. The use of the methylene protons resonance frequency as internal reference improves the accuracy of LDX-based MR thermometry, but degrades that of PRF-based MR thermometry, as microscopic susceptibility gradients affected lipid and water spins differently. Conclusion: The LDX resonance frequency, with its higher temperature dependence, provides more accurate and precise temperature measurements, both in vitro and in vivo. More importantly, the resonance frequency of nearby methylene protons can be used to extract absolute temperature information.
(500939) Kate Southgate
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Phase space of electron- and muon-neutrino and antineutrino scattering off nuclei
Creators: name: Martini, M.
name: Ericson, M.
name: Chanfray, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the electron and muon neutrino and antineutrino double differential cross sections on carbon in the quasielastic as well as in the multinucleon and one pion production channels. By projecting them in the transferred momentum - transferred energy plane and in the neutrino energy - lepton scattering angle plane, as well as by performing simple considerations on the position of the quasielastic and Delta peaks and on their broadening, we explain the surprising dominance of the muon neutrino and antineutrino cross sections over the electron ones in particular kinematical conditions.
(500938) Minnie M. [Evelyn] Buckle
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Probing Bino-Gluino Coannihilation at the LHC
Creators: name: Nagata, Natsumi
name: Otono, Hidetoshi
name: Shirai, Satoshi
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It has been widely known that bino-like dark matter in the supersymmetric (SUSY) theories in general suffers from over-production. The situation can be drastically improved if gluinos have a mass slightly heavier than the bino dark matter as they reduce the dark matter abundance through coannihilation. In this work, we consider such a bino-gluino coannihilation scenario in high-scale SUSY models, which can be actually realized when the squark-mass scale is less than 100-1000 TeV. We study the prospects for exploring this bino-gluino coannihilation scenario at the LHC. We show that the searches for long-lived colored particles with displaced vertices offer a strong tool to test this scenario in collider experiments.
description: 15 pages, 4 figures
(500937) Eliza [Joachim]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(500936) Richard Joachim
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Why Do Markets Crash? Bitcoin Data Offers Unprecedented Insights
Creators: name: Donier, Jonathan
name: Bouchaud, Jean-Philippe
Publisher: name: arXiv
Year: 2015
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Economics and business

description: Crashes have fascinated and baffled many canny observers of financial markets. In the strict orthodoxy of the efficient market theory, crashes must be due to sudden changes of the fundamental valuation of assets. However, detailed empirical studies suggest that large price jumps cannot be explained by news and are the result of endogenous feedback loops. Although plausible, a clear-cut empirical evidence for such a scenario is still lacking. Here we show how crashes are conditioned by the market liquidity, for which we propose a new measure inspired by recent theories of market impact and based on readily available, public information. Our results open the possibility of a dynamical evaluation of liquidity risk and early warning signs of market instabilities, and could lead to a quantitative description of the mechanisms leading to market crashes.
(500935) William Henry Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Left-Right Symmetric Models at the High-Intensity Frontier
Creators: name: Castillo-Felisola, Oscar
name: Dib, Claudio O.
name: Helo, Juan C.
name: Kovalenko, Sergey G.
name: Ortiz, Sebastian E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study constraints on Left-Right Symmetric models from searches of semileptonic decays of $D$, $D_{s}$, $B$ mesons, mediated by heavy neutrinos $N$ with masses $m_N\sim $ GeV that go on their mass shell leading to a resonant enhancement of the rates. Using these processes we examine, as a function of $m_N$ and $M_{W_R}$, the physics reach of the recently proposed high-intensity beam dump experiment SHiP, which is expected to produce a large sample of $D_s$ mesons. We compare these results with the corresponding reach of neutrinoless double beta decay experiments, as well as like-sign dilepton searches with displaced vertices at the LHC. We conclude that the SHiP experiment has clear advantages in probing the Left-Right Symmetric models for heavy neutrinos in the GeV mass range.
description: 5 pages, 5 figures. RevTeX format. V2: Some figures and explanations improved, references added. Conclusions unchanged. V3: Minor grammatical improvements, version accepted for publication in PRD
(500934) Richard Joachim Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
OPEUS D9.2 - Project Management and Exploitation Plan
Creators: name: Partner-UNEW
Publisher: name: Zenodo
Year: 2017

description: This report forms OPEUS project Deliverable 9.2, describing the project management within the project and provides information on the tools to be used. It has been created as a support to the consortium with the main goal of facilitating the collaboration between partners and ensuring that European Commission (EC) and Shift2Rail (S2R) requirements are respected. In this sense, this document complements all other important documents such as the EC Grant Agreement, its Annexes and the various EC guidelines which, in case of conflict or uncertainty, supersede this document. After introducing the OPEUS project and the objectives of the Deliverable, this document presents guidelines and procedures to assist proficient project management. This includes the project management structure, the management of risk and handling conflict and quality assurance. Also, all project partners have responsibility for delivering project activities, in turn lead to production of formal Deliverables. A review process is in place to support the quality assurance of the deliverable reports being produced, including the use of a template document. Progress of OPEUS against expected delivery is monitored and managed by the Project Coordinator, using traditional project management tools including Gantt chart review of tasks to be delivered, deliverables produced, milestones achieved and project results obtained. The OPEUS project uses two main means of reporting – interim reporting and the formal Periodic Reporting. Additionally, continuous reporting in the form of Deliverables and Milestones completion is undertaken. All project partners have reporting responsibilities to assist the Project Coordinator fulfil project reporting requirements, and are supported by the Project Coordinator in doing so. Clear communication channels are maintained using a ‘cascade’ process, such that the Project Coordinator, UNEW, is the only official interface to the EC and S2R. Communication between partners is encouraged across all WPs and Tasks and communication with any Linked Third Parties is through their respective ‘host’ partner. In addition to the internal procedures concerning the management of the OPEUS consortium, the document outlines the main principles and the framework of the collaboration with the complementary S2R CFM project FINE1. Finally, it is of note that this document should not be seen in isolation. It works along with the Technical Annex 1 (the DoA) of the Grant Agreement which has been issued to all project Partners (copies are also available for download from the OPEUS project’s Extranet and in the EC’s Participant Portal).
(500933) George William Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Assessing the direction of climate interactions by means of complex networks and information theoretic tools
Creators: name: Deza, J. Ignacio
name: Masoller, Cristina
name: Barreiro, Marcelo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: An estimate of the net direction of climate interactions in different geographical regions is made by constructing a directed climate network from a regular latitude-longitude grid of nodes, using a directionality index (DI) based on conditional mutual information. Two datasets of surface air temperature anomalies - one monthly-averaged and another daily-averaged - are analyzed and compared. The network links are interpreted in terms of known atmospheric tropical and extratropical variability patterns. Specific and relevant geographical regions are selected, the net direction of propagation of the atmospheric patterns is analyzed and the direction of the inferred links is validated by recovering some well-known climate variability structures. These patterns are found to be acting at various time-scales, such as atmospheric waves in the extra-tropics or longer range events in the tropics. This analysis demonstrates the capability of the DI measure to infer the net direction of climate interactions and may contribute to improve the present understanding of climate phenomena and climate predictability. The work presented here also stands out as an application of advanced tools to the analysis of empirical, real-world data.
description: Accepted in Chaos. AIP
(500932) Mary Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(500931) Eliza Joachim
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Revisiting the mean-field picture of dipolar effects in solution NMR
Creators: name: Warren, W.S.
name: Branca, R.T.
name: Chen, Y.M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: For more than three decades, the classical or mean-field picture describing the distant dipolar field has been almost always simplified to an effective field proportional to the local longitudinal magnetization, differing only by a scale factor of 1.5 for homomolecular (identical resonance frequency) and heteromolecular interactions. We re-examine the underlying assumptions, and show both theoretically and experimentally that the mathematical framework needs to be modified for modern applications such as imaging. We demonstrate new pulse sequences which produce unexpected effects; for example, modulating an arbitrarily small fraction of the magnetization can substantially alter the frequency evolution. Thus, matched gradient pulse pairs (a seemingly innocuous module in thousands of existing pulse sequences) can alter the time evolution in highly unexpected ways, particularly with small flip angle pulses such as those used in hyperpolarized experiments. We also show that specific gradient pulse combinations can retain only dipolar interactions between unlike spins, and the dipolar field can generate a secular Hamiltonian proportional to I x.
(500930) William Cecil Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Introducing a Deep Neural Network-based Model Predictive Control Framework for Rapid Controller Implementation
Creators: name: Gordon, David C.
name: Winkler, Alexander
name: Bedei, Julian
name: Schaber, Patrick
name: Andert, Jakob
name: Koch, Charles R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Model Predictive Control (MPC) provides an optimal control solution based on a cost function while allowing for the implementation of process constraints. As a model-based optimal control technique, the performance of MPC strongly depends on the model used where a trade-off between model computation time and prediction performance exists. One solution is the integration of MPC with a machine learning (ML) based process model which are quick to evaluate online. This work presents the experimental implementation of a deep neural network (DNN) based nonlinear MPC for Homogeneous Charge Compression Ignition (HCCI) combustion control. The DNN model consists of a Long Short-Term Memory (LSTM) network surrounded by fully connected layers which was trained using experimental engine data and showed acceptable prediction performance with under 5% error for all outputs. Using this model, the MPC is designed to track the Indicated Mean Effective Pressure (IMEP) and combustion phasing trajectories, while minimizing several parameters. Using the acados software package to enable the real-time implementation of the MPC on an ARM Cortex A72, the optimization calculations are completed within 1.4 ms. The external A72 processor is integrated with the prototyping engine controller using a UDP connection allowing for rapid experimental deployment of the NMPC. The IMEP trajectory following of the developed controller was excellent, with a root-mean-square error of 0.133 bar, in addition to observing process constraints.
description: Submitted to 2024 American Control Conference (ACC), July 8-12, 2024 in Toronto, Canada. ACC is the annual conference of the American Automatic Control Council (AACC), the U.S. national member organization of the International Federation for Automatic Control (IFAC)
การศึกษาความพึงพอใจที่มีต่อสื่อการเรียนอิเล็กทรอนิกส์ชุด งาน พลังงาน และโมเมนตัม
Creators: name: กาญจนา จันทร์ประเสริฐ
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2008
Subjects: e-Learning Courseware
Efficiency
Satisfaction
ความพึงพอใจ
ประสิทธิภาพ
พลังงาน
สื่อการเรียนอิเล็กทรอนิกส์
เรื่องงาน
โมเมนตัม

description: วารสารพัฒนาการเรียนการสอน, 2, 2, 23-31
The High Time Resolution Universe Survey - XI. Discovery of five recycled pulsars and the optical detectability of survey white dwarf companions
Creators: name: Bates, S. D.
name: Thornton, D.
name: Bailes, M.
name: Barr, E.
name: Bassa, C. G.
name: Bhat, N. D. R.
name: Burgay, M.
name: Burke-Spolaor, S.
name: Champion, D. J.
name: Flynn, C. M. L.
name: Jameson, A.
name: Johnston, S.
name: Keith, M. J.
name: Kramer, M.
name: Levin, L.
name: Lyne, A.
name: Milia, S.
name: Ng, C.
name: Petroff, E.
name: Possenti, A.
name: Stappers, B. W.
name: van Straten, W.
name: Tiburzi, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the discovery of a further five recycled pulsar systems in the mid-Galactic latitude portion of the High Time Resolution Universe (HTRU) Survey. The pulsars have rotational periods ranging from 2 ms to 66 ms, and four are in binary systems with orbital periods between 10.8 hours and 9.0 days. Three of these binary systems are particularly interesting; PSR J1227-6208 has a pulse period of 34.5 ms and the highest mass function of all pulsars with near-circular orbits. The circular orbit suggests that the companion is not another neutron star, so future timing experiments may reveal one of the heaviest white dwarfs ever found ($>$ 1.3 M$_\odot$). Timing observations of PSR J1431$-$4715 indicate that it is eclipsed by its companion which has a mass indicating it belongs to the redback class of eclipsing millisecond pulsars. PSR J1653-2054 has a companion with a minimum mass of only $0.08$ M$_\odot$, placing it among the class of pulsars with low-mass companions. Unlike the majority of such systems, however, no evidence of eclipses is seen at 1.4 GHz.
description: 11 pages, 6 figures, 4 tables
Detecting brown adipose tissue activity with BOLD MRI in mice
Creators: name: Branca, R.T.
name: Khanna, A.
Publisher: name: John Wiley and Sons Inc
Year: 2012

description: The recent discovery of active brown adipose tissue (BAT) in adult humans and the correlation found between the activity of this tissue and resting metabolic rate strongly suggest that this tissue may be implicated in the development of obesity in humans, as it is in rodents. Despite the possible physiological role of this tissue in the onset of human obesity, few noninvasive imaging techniques to detect BAT activity in humans exist. The scope of this work is to investigate the possibility of detecting BAT activity using blood-oxygen-level-dependent MRI. Our results show that the strong increase in oxygen consumption and consequent increase in blood deoxyhemoglobin levels following BAT activation lead to a well-localized signal drop in BAT. This strongly suggests the possibility to use blood-oxygen-level-dependent MRI for the noninvasive detection of BAT activity.
(500929) Harold Charles Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
การสำรวจความคิดเห็นด้านรูปแบบและเทคนิคการสอนวิชา ปฏิบัติการเวชศาสตร์ชันสูตร
Creators: name: อังสนา โยธินารักษ์
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2008
Subjects: Improvement
Instruction Patterns and Techniques
Practicum in Laboratory Diagnosis
การปรับปรุง
รูปแบบการสอน
วิชาปฏิบัติการเวชศาสตร์ชันสูตร
เทคนิคการสอน

description: วารสารพัฒนาการเรียนการสอน, 2, 2, 32-41
Ultracompact horizonless objects in order-reduced semiclassical gravity
Creators: name: Arrechea, Julio
name: Barceló, Carlos
name: Carballo-Rubio, Raúl
name: Garay, Luis J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The backreaction of quantum fields in their vacuum state results in equilibrium structures that surpass the Buchdahl compactness limit. Such backreaction is encapsulated in the vacuum expectation value of the renormalized stress-energy tensor (RSET). In previous works we presented analytic approximations to the RSET, obtained by dimensional reduction, available in spherical symmetry, and showed that the backreaction-generated solutions described ultracompact fluid spheres with a negative mass interior. Here, we derive a novel approximation to the RSET that does not rely on dimensional reduction, but rather on a reduction of the differential order. This approximation also leads to regular stars surpassing the Buchdahl limit. We conclude that this is a consequence of the negative energies associated with the Boulware vacuum which, for sufficiently compact fluid spheres, make the Misner-Sharp mass negative near the centre of spherical symmetry. Our analysis provides further cumulative evidence that quantum vacuum polarization is capable of producing new forms of stellar equilibrium with robust properties accross different analytical approximations to the RSET.
description: 15 pages, 5 figures. Added a new figure, an appendix, and improved the main text. To appear in Phys. Rev. D
(500928) Gilbert Henry Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(500927) Percy Frederic Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Anglo-papal relations, c.1066-c.1135
Creators: name: Armstrong, Daniel Fraser
Publisher: name: The University of St Andrews
Year: 2022
Subjects: subject: Papacy
subject: Medieval
subject: Diplomacy
subject: Church and state
subject: Anglo-papal
subject: Anglo-Norman England
subject: BR747.A8
subject: Catholic Church--Foreign relations--Great Britain
subject: Papacy--History--To 1309
subject: Diplomacy--History--To 1500
subject: Great Britain--Foreign relations--Catholic Church

description: This thesis examines the relationship between the kingdom of England and the papacy during the reigns of William the Conqueror and his sons. It will act as the first comprehensive reconsideration of Anglo-papal relations between 1066 and 1135 since Z.N. Brooke’s 1931 The English Church and the Papacy. Despite being dismantled in the wider field of papal studies, the grand narrative of conflict between Church and State continues to provide the main interpretative framework for Anglo-papal relations. This thesis aims to tear down this anachronistic scaffolding, to bring our understanding of Anglo-papal relations in-line with developments in the wider field. In considering the relationship between England and the curia, this work is part of a recent scholarly trend in studying the papacy’s dynamic relations with specific places. The study is divided into two parts, designed to give an impression of how the relationship worked and how it changed over time. Part I considers the ideals and practice of the relationship. It addresses the various claims of popes, kings, and prelates and how these were negotiated and balanced in practice. It emphasises the very personal nature of these negotiations and how they were shaped by a set of rules of the game: spielregeln. Part II then turns to the jurisdictional relationship, and how negotiations organised the sharing of authority between popes, kings, and prelates. It demonstrates how England was more firmly located in the papacy’s orbit by the end of Henry I’s reign. Our conclusions then point to the possible directions of future study and calls for a more comparative approach.
OPEUS D9.4 - Data Management Implementation
Creators: name: Partner-UNEW
Publisher: name: Zenodo
Year: 2020

description: The aim of OPEUS was to develop a simulation methodology and accompanying modelling tool to evaluate, improve and optimise the energy consumption of rail systems, with a particular focus on in-vehicle innovation. To fulfil its objectives and achieve its aim, OPEUS needed to access, collect, create, process and manage various data types. The OPEUS project chose to participate in the H2020 pilot action on Open Research Data. In this deliverable report, data types and their sources are discussed before providing, for each Work Package, an explanation of where various data has been used and generated throughout the delivery of OPEUS project. This is summarised in a simple ‘high-level’ map depicting the data and WPs against the project’s main activities. Regarding the management of the data sourced, used and generated, the application of FAIR principles, security and preservation of data and GDPR and ethics are highlighted. To assist in reporting of data types used/generated and their sources/origins, Data Description Templates have been completed where relevant (these are included at Annex 1). These have been collated to produce a more detailed descriptor in tabular form, presenting the implementation of data management by all of the project partners across all of the WPs, for various management aspects including data sharing, archiving, dissemination, back-up and accessibility after project end.
In vivo NMR detection of diet-induced changes in adipose tissue composition
Creators: name: Branca, R.T.
name: Warren, W.S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: We introduce an in vivo spectroscopic method to assess the effects of diet on fatty acid composition of the predominant chemical constituent of adipocytes in mice. To do this, we make use of a nonlinear NMR signal that, unlike a standard NMR signal, is intrinsically insensitive to local magnetic field inhomogeneities and which naturally suppresses the large water signal from nonfatty tissues. Our method yields fat composition information from fat depots distributed over large sample volumes in a single experiment, without requiring the use of tedious shimming procedures, voxel selection, or water suppression. Our results suggest that this method can reveal clear differences in adipose tissue composition of mice fed a standard chow diet compared with mice fed a diet rich in polyunsaturated fatty acids. With further developments this method could be used to obtain information on human lipid composition noninvasively and to track changes in lipid composition induced by diet intervention, pharmaceutical drugs, and exercise.
Engineered dissipation to mitigate barren plateaus
Creators: name: Sannia, Antonio
name: Tacchino, Francesco
name: Tavernelli, Ivano
name: Giorgi, Gian Luca
name: Zambrini, Roberta
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Variational quantum algorithms represent a powerful approach for solving optimization problems on noisy quantum computers, with a broad spectrum of potential applications ranging from chemistry to machine learning. However, their performances in practical implementations crucially depend on the effectiveness of quantum circuit training, which can be severely limited by phenomena such as barren plateaus. While, in general, dissipation is detrimental for quantum algorithms, and noise itself can actually induce barren plateaus, here we describe how the inclusion of properly engineered Markovian losses after each unitary quantum circuit layer can restore the trainability of quantum models. We identify the required form of the dissipation processes and establish that their optimization is efficient. We benchmark our proposal in both a synthetic and a practical quantum chemistry example, demonstrating its effectiveness and potential impact across different domains.
Galilean symmetry in generalized abelian Schrödinger-Higgs models with and without gauge field interaction
Creators: name: Sourrouille, Lucas
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a generalization of nonrelativistic Schrödinger-Higgs Lagrangian by introducing a nonstandard kinetic term. We show that this model is Galilean invariant, we construct the conserved charges associated to the symmetries and realize the algebra of the Galilean group. In addition, we study the model in the presence of a gauge field. We also show that the gauged model is Galilean invariant. Finally, we explore relations between twin models and their solutions.
description: 13 pages, version to be published in MPLA
(500926) Ethel Mary Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
An Infinite Needle in a Finite Haystack: Finding Infinite Counter-Models in Deductive Verification
Creators: name: Elad, Neta
name: Padon, Oded
name: Shoham, Sharon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: First-order logic, and quantifiers in particular, are widely used in deductive verification. Quantifiers are essential for describing systems with unbounded domains, but prove difficult for automated solvers. Significant effort has been dedicated to finding quantifier instantiations that establish unsatisfiability, thus ensuring validity of a system's verification conditions. However, in many cases the formulas are satisfiable: this is often the case in intermediate steps of the verification process. For such cases, existing tools are limited to finding finite models as counterexamples. Yet, some quantified formulas are satisfiable but only have infinite models. Such infinite counter-models are especially typical when first-order logic is used to approximate inductive definitions such as linked lists or the natural numbers. The inability of solvers to find infinite models makes them diverge in these cases. In this paper, we tackle the problem of finding such infinite models. These models allow the user to identify and fix bugs in the modeling of the system and its properties. Our approach consists of three parts. First, we introduce symbolic structures as a way to represent certain infinite models. Second, we describe an effective model finding procedure that symbolically explores a given family of symbolic structures. Finally, we identify a new decidable fragment of first-order logic that extends and subsumes the many-sorted variant of EPR, where satisfiable formulas always have a model representable by a symbolic structure within a known family. We evaluate our approach on examples from the domains of distributed consensus protocols and of heap-manipulating programs. Our implementation quickly finds infinite counter-models that demonstrate the source of verification failures in a simple way, while SMT solvers and theorem provers such as Z3, cvc5, and Vampire diverge.
In vivo brown adipose tissue detection and characterization using water-lipid intermolecular zero-quantum coherences
Creators: name: Branca, R.T.
name: Warren, W.S.
Publisher: name: John Wiley and Sons Inc
Year: 2011

description: Brown adipose tissue and white adipose tissue depots are noninvasively characterized in vitro and in vivo in healthy and obese mice using intermolecular zero-quantum coherence transitions between lipid and water spins. Intermolecular zero-quantum coherences enable selective detection of spatial correlation between water and lipid spins and thereby the hydration of fatty deposits with subvoxel resolution. At about a 100 mm distance scale, the major observed peaks are between water, methylene protons at 1.3 ppm, and olefinic protons at 5.3 ppm. Our in vitro results show that the methylene-olefinic intermolecular zero-quantum coherence signal is strong both in brown and white adipose tissues, but that the water-methylene intermolecular zero-quantum coherence signal is characteristic only of brown adipose tissue. In vivo, the ratio of these peaks is substantially higher in lean or young mice than in old or obese mice.