cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Slides for: Tapestry: A Compressed Sensing Approach to Pooled RT-PCR Testing for COVID-19 Detection
Creators: Dr. Sabyasachi Ghosh
Publisher: name: IEEE
Year: 2022

Slides for: SPS Webinar, September 21, 2022, Dr. Sabyasachi Ghosh
This webinar presents ?Tapestry?, a single-round pooled testing method with application to COVID-19 testing using quantitative Reverse Transcription Polymerase Chain Reaction (RT-PCR) that can result in shorter testing time and conservation of reagents and testing kits, at clinically acceptable false positive or false negative rates. Tapestry combines ideas from compressed sensing and combinatorial group testing to create a new kind of algorithm that is very effective in deconvoluting pooled tests. Unlike Boolean group testing algorithms, the input is a quantitative readout from each test and the output is a list of viral loads for each sample relative to the pool with the highest viral load. We prove that for exact recovery of k infected samples out of n ? k being tested, Tapestry needs only O(k log n) tests with high probability, using random binary matrices. However, we use deterministic binary pooling matrices based on Kirkman Triple Systems, which balance between good reconstruction properties and matrix sparsity for ease of pooling while requiring fewer tests in practice. This enables large savings using Tapestry at low prevalence rates while maintaining viability at prevalence rates as high as 9.5%. Empirically we find that single-round Tapestry pooling improves over two-round Dorfman pooling by almost a factor of 2 in the number of tests required. We evaluate Tapestry in simulations with synthetic data obtained using a novel noise model for RT-PCR, and validate it in wet lab experiments with oligomers in quantitative RT-PCR assays.
The Large Scale Structure in the Universe: From Power-Laws to Acoustic Peaks
Creators: name: Martinez, Vicent J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The most popular tools for analysing the large scale distribution of galaxies are second-order spatial statistics such as the two-point correlation function or its Fourier transform, the power spectrum. In this review, we explain how our knowledge of cosmic structures, encapsulated by these statistical descriptors, has evolved since their first use when applied on the early galaxy catalogues to the present generation of wide and deep redshift surveys, incorporating the most challenging discovery in the study of the galaxy distribution: the detection of Baryon Acoustic Oscillations.
description: 20 pages, 12 figures, to appear in "Data Analysis in Cosmology", Lecture Notes in Physics, 2008, eds. V. J. Martinez, E. Saar, E. Martinez-Gonzalez, and M.J. Pons-Borderia, Springer-Verlag
Slides for: FedLoc: Federated Learning Framework for Data-Driven Cooperative Localization and Location Data Processing
Creators: Dr. Feng Yin
Publisher: name: IEEE
Year: 2022

Slides for: SPS Webinar, September 14, 2022, Dr. Feng Yin
This SPS webinar will introduce a novel data-driven cooperative localization and location data processing framework, called FedLoc, in line with the emerging machine learning and optimization techniques. We first review two widely used learning models, namely the deep neural network model and the Gaussian process model, show their connections, and introduce various distributed model hyper-parameter optimization schemes that can be adopted to implement the federated learning. To give a complete picture, we then introduce some other vital ingredients of the FedLoc, including privacy protection schemes, wireless network infrastructures, etc. Lastly, we demonstrate various popular use cases covering a broad range of location services, including collaborative static localization/fingerprinting, indoor target tracking, outdoor navigation using low-sampling GPS, Spatio-temporal wireless traffic data prediction, etc. All the use cases aim at collaboratively building more accurate location services without sacrificing user privacy, particularly sensitive information related to their geographical trajectories. Future research directions will be discussed at the end of this webinar.
Sequestered Inflation
Creators: name: Kallosh, Renata
name: Linde, Andrei
name: Wrase, Timm
name: Yamada, Yusuke
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct supergravity models allowing to sequester the phenomenology of inflation from the Planckian energy scale physics. The procedure consists of two steps: At Step I we study supergravity models, which might be associated with string theory or M-theory, and have supersymmetric Minkowski vacua with flat directions. At Step II we uplift these flat directions to inflationary plateau potentials. We find certain conditions which ensure that the superheavy fields involved in the stabilization of the Minkowski vacua at Step I are completely decoupled from the inflationary phenomenology.
description: 15 pages, 4 figures, v2: refs added, accepted for publication in Fortschritte der Physik
Da Bergson a Girard: il comico e il sacro
Creators: name: Grazioli, Andrea
Publisher: name: Università degli Studi di Milano
Year: 2014

description: The essay by Claudio Rozzoni Il Riso di Molière. Teatro e impersonalità, which has been published in this magazine, examines the phenomenon of the comedian with particular emphasis on his/her impersonal nature. Starting from Henri Bergson’s ideas, and with particular and frequent reference to Molière’s theatre, Rozzoni takes a first step toward defining the air of impersonality that characterises comedy. The purpose of this work is to further explore the aforementioned idea. This study will start with Rozzoni’s analysis and will subsequently make use of the thoughts of the Franco-American anthropologist René Girard, in order to show the mimetic and undifferentiating character of impersonality. At the end of this study, a religious anthropology of comedy will be outlined: moving from sacrificial rituals to medieval festivals and to the gradual professionalization of the modern era, this work will finally look at the contemporary time, shedding light on the long-existing link between the role of the comedian and that of an expiatory victim.
description: Itinera, No 8 (2014)
Approximation for radiation power of electrons due to inverse-Compton process in the black-body photon field
Creators: name: Petruk, O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An approximation for the inverse-Compton radiation power of electrons in the isotropic black-body photon field is presented. The approximation allows one to calculate inverse-Compton emissivity as integral over the energies of incident electrons rather than over the field photon energies. Such an approach allows for accurate modeling of IC emission of electrons with energy spectra being different from power-law, in situation where the CPU resources are limited. High accuracy of this approximation allows one to use it in a wide range of conditions, from Thomson to extreme Klein-Nishina limits. The approach adopted results also in some new analytic expressions representing known results in the Thomson limit.
description: 8 pages, 4 figures, 2 subsections added
Transmission Planning for the Energy Transition
Creators: J. Conto
E. Vittal
T. Dourado
R. Dai
Publisher: name: IEEE
Year: 2022

Transmission expansion planning is being impacted by several aspects of the energy transition, including electrification of energy end-uses, scaling-up of variable renewables, retirement of fossil-fueled thermal plants and deployment of distributed energy resources. The session will convene representatives from system operators, planning agencies and research centers from North America, Europe and Latin America to discuss how their transmission planning methodologies, procedures and decision-making process are adapting to these impacts.
Transmission expansion planning is being impacted by several aspects of the energy transition, including electrification of energy end-uses, scaling-up of variable renewables, retirement of fossil-fueled thermal plants and deployment of distributed energy resources. The session will convene representatives from system operators, planning agencies and research centers from North America, Europe and Latin America to discuss how their transmission planning methodologies, procedures and decision-making process are adapting to these impacts.
Financial Markets Prediction with Deep Learning
Creators: name: Wang, Jia
name: Sun, Tong
name: Liu, Benyuan
name: Cao, Yu
name: Wang, Degang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Machine Learning (cs.LG)
subject: Computational Finance (q-fin.CP)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Financial markets are difficult to predict due to its complex systems dynamics. Although there have been some recent studies that use machine learning techniques for financial markets prediction, they do not offer satisfactory performance on financial returns. We propose a novel one-dimensional convolutional neural networks (CNN) model to predict financial market movement. The customized one-dimensional convolutional layers scan financial trading data through time, while different types of data, such as prices and volume, share parameters (kernels) with each other. Our model automatically extracts features instead of using traditional technical indicators and thus can avoid biases caused by selection of technical indicators and pre-defined coefficients in technical indicators. We evaluate the performance of our prediction model with strictly backtesting on historical trading data of six futures from January 2010 to October 2017. The experiment results show that our CNN model can effectively extract more generalized and informative features than traditional technical indicators, and achieves more robust and profitable financial performance than previous machine learning approaches.
description: 8 pages, 2018 17th IEEE International Conference on Machine Learning and Applications (ICMLA). IEEE, 2018
Bijectiveness of the Nash Map for Quasi-Ordinary Hypersurface Singularities
Creators: name: Perez, Pedro Daniel Gonzalez
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J17; 32S10, 14M25

description: In this paper we give a positive answer to a question of Nash concerning the arc space of a singularity, for the class of quasi-ordinary hypersurface singularities, extending to this case previous results and techniques of Shihoko Ishii.
description: comments and references added
Resonances and Oscillations in Wind Farms and Solar PVs
Creators: X. Wang
W. Du
C. Li
X. Xie
J. Shair
Z. Milo
L. Fan
Publisher: name: IEEE
Year: 2022

Grid integration and operation of wind farms and solar PV farms face many stability challenges. In Europe, high-frequency resonances have been known as a significant challenge for offshore wind farms grid integration. In Australia, 5-20 Hz oscillations have been observed in solar PV farms. Furthermore, very low frequency oscillations in the range of 0.01-1 Hz oscillations associated to power plant level control have been observed. While those IBR related phenomena are new to the power grid industry, we may also draw lessons from the grid’s prior experiences with FACTS devices. For example, weak grid stability issues of SVC and mitigating strategies have been thoroughly studied in the past decades. This panel session will include talks from experts around the world to give insights on the current issues facing the power grid industry, e.g., high-frequency resonances in wind farms, subsynchronous oscillations in solar PVs, and very low frequency var oscillations. The session also includes a presentation on how to detect stability issues at the planning stage using EMT models and a presentation on lessons learned from the prior experience in FACTS operation in weak grids.
Grid integration and operation of wind farms and solar PV farms face many stability challenges. In Europe, high-frequency resonances have been known as a significant challenge for offshore wind farms grid integration. In Australia, 5-20 Hz oscillations have been observed in solar PV farms. Furthermore, very low frequency oscillations in the range of 0.01-1 Hz oscillations associated to power plant level control have been observed. While those IBR related phenomena are new to the power grid industry, we may also draw lessons from the grid’s prior experiences with FACTS devices. For example, weak grid stability issues of SVC and mitigating strategies have been thoroughly studied in the past decades. This panel session will include talks from experts around the world to give insights on the current issues facing the power grid industry, e.g., high-frequency resonances in wind farms, subsynchronous oscillations in solar PVs, and very low frequency var oscillations. The session also includes a presentation on how to detect stability issues at the planning stage using EMT models and a presentation on lessons learned from the prior experience in FACTS operation in weak grids.
Direct-write laser-induced self-organization and metallization beyond the focal volume in tellurite glass
Creators: name: Torun, Gözden
name: Kishi, Tetsuo
name: Bellouard, Yves
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on a self-organized process initiated on a potassium-tungsten-tellurite glass surface under repetitive femtosecond laser irradiation in a regime where cumulative effects lead to a localized melting. Specifically, we show that self-organized periodic patterns consisting of parallel nanoplanes perpendicular to the laser polarization are forming and extending beyond the zone under direct laser exposure. Examination of the modified regions revealed a phase change from a glassy tellurium-oxide to a crystalline elemental tellurium. In addition, we observe that this self-organization process, associated with elemental redistribution and deoxygenation, is triggered by the optical-field strength. We suggest that early self-organized nanostructures formed by a local-field enhancement is subsequently reinforced by a metallization event in an open-air atmosphere.
description: 11 pages, 8 figures
Vision for an Artefact-based Approach to Regulatory Requirements Engineering
Creators: name: Kosenkov, Oleksandr
name: Unterkalmsteiner, Michael
name: Mendez, Daniel
name: Fucci, Davide
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Background: Nowadays, regulatory requirements engineering (regulatory RE) faces challenges of interdisciplinary nature that cannot be tackled due to existing research gaps. Aims: We envision an approach to solve some of the challenges related to the nature and complexity of regulatory requirements, the necessity for domain knowledge, and the involvement of legal experts in regulatory RE. Method: We suggest the qualitative analysis of regulatory texts combined with the further case study to develop an empirical foundation for our research. Results: We outline our vision for the application of extended artefact-based modeling for regulatory RE. Conclusions: Empirical methodology is an essential instrument to address interdisciplinarity and complexity in regulatory RE. Artefact-based modeling supported by empirical results can solve a particular set of problems while not limiting the application of other methods and tools and facilitating the interaction between different fields of practice and research.
Quenching Spin Decoherence in Diamond through Spin Bath Polarization
Creators: name: Takahashi, Susumu
name: Hanson, Ronald
name: van Tol, Johan
name: Sherwin, Mark S.
name: Awschalom, David D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We experimentally demonstrate that the decoherence of a spin by a spin bath can be completely eliminated by fully polarizing the spin bath. We use electron paramagnetic resonance at 240 gigahertz and 8 Tesla to study the spin coherence time $T_2$ of nitrogen-vacancy centers and nitrogen impurities in diamond from room temperature down to 1.3 K. A sharp increase of $T_2$ is observed below the Zeeman energy (11.5 K). The data are well described by a suppression of the flip-flop induced spin bath fluctuations due to thermal spin polarization. $T_2$ saturates at $\sim 250 μs$ below 2 K, where the spin bath polarization is 99.4 %.
description: 5 pages and 3 figures
title: Exploring individual differences in anhedonia using psychometric, behavioural and electrophysiological methods.
Creators: name: Duke, Éilish
Publisher: name: Goldsmiths, University of London
Year: 2022

description: Depression affects over 300 million people and is a leading burden of illness worldwide. Despite its prevalence, highly effective treatments for depression are lacking. The absence of efficacious treatment may be due to poor understanding of the symptoms underpinning depression. One important indicator of poor response to treatment is the symptom, anhedonia. Anhedonia presents as impaired reward processing, particularly approach motivation, and is a transdiagnostic symptom common to depression, schizophrenia, Parkinson’s Disease and addiction. Individual differences in anhedonia reveal a trait-like stability for this construct, suggesting clinical utility as a marker of treatment response and psychopathology. However, the putative utility of anhedonia is undermined by inconsistencies and inaccuracies in the measurement of this construct. This thesis aimed to investigate the measurement of motivational processes in anhedonia and sought to develop a new self-report measure, sensitive to the multifaceted nature of individual differences in anhedonia. Two initial studies sought to examine the convergent validity of neural (EEG cerebral asymmetry), behavioural and psychometric measures of approach and withdrawal motivation. These studies suggested that, contrary to much of the literature, these measures are assessing discrete sub-components of approach and withdrawal motivation. Two subsequent studies sought to develop and validate a self-report measure of multidimensional anhedonia. The Goldsmiths Anhedonia Measure (GAME) yields a four-factor structure, sensitive to individual differences in interpersonal, emotional, sensory and novelty-seeking aspects of reward processing. Finally, the putative causal relationship between perceived stress and anhedonia was examined. Reflecting the multi-dimensional nature of anhedonia suggested by prior studies, perceived stress predicted anhedonia only in interpersonal, emotional and anticipatory domains (but not sensory, novelty-seeking or consummatory areas). These findings highlight the need to refine measurement of motivational processes in anhedonia to better characterise individual differences in treatment response and contribute to the theoretical understanding of a multifaceted reward “wanting” process.
Dark matter and the first stars: a new phase of stellar evolution
Creators: name: Spolyar, Douglas
name: Freese, Katherine
name: Gondolo, Paolo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A mechanism is identified whereby dark matter (DM) in protostellar halos dramatically alters the current theoretical framework for the formation of the first stars. Heat from neutralino DM annihilation is shown to overwhelm any cooling mechanism, consequently impeding the star formation process and possibly leading to a new stellar phase. A "dark star'' may result: a giant ($\gtrsim 1$ AU) hydrogen-helium star powered by DM annihilation instead of nuclear fusion. Observational consequences are discussed.
description: 5 pages, 2 figures; replaced with accepted version
นโยบายการกระจายอำนาจกับการเสริมสร้างประชาธิปไตยท้องถิ่น
Creators: name: อดิศักดิ์ จันทไทย
Publisher: name: College of Politics and Governance (COPAG), Mahasarakham University
Year: 2021
Subjects: Decentralization to Areas
Local Democracy
Local Community

description: Journal of Politics and Governance, 11, 2, 73-86
การสร้างเครือข่ายพลเมืองเพื่อเสริมสร้างประชาธิปไตยฐานราก ของโรงเรียนสังกัดเทศบาลเมืองมหาสารคาม จังหวัดมหาสารคาม
Creators: name: จีรศักดิ์ โพกาวิน
Publisher: name: College of Politics and Governance (COPAG), Mahasarakham University
Year: 2021
Subjects: Network
Citizen
Democracy
Foundation

description: Journal of Politics and Governance, 11, 2, 87-97
More Efficient Purifying scheme via Controlled- Controlled NOT Gate
Creators: name: Metwally, Nasser
name: Obada, Abdel-Shafy F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new modified version of the Oxford purification protocol is proposed. This version is based on the controlled-controlled NOT gate instead of controlled NOT in the original one. Comparisons between the results of the new version and the original and an earlier modification are given. It is found that the new version converges faster and consumes fewer initial qubit pairs of low fidelity per final qubit pair of high fidelity.
Dissipative Floquet Dynamics: from Steady State to Measurement Induced Criticality in Trapped-ion Chains
Creators: name: Sierant, Piotr
name: Chiriacò, Giuliano
name: Surace, Federica M.
name: Sharma, Shraddha
name: Turkeshi, Xhek
name: Dalmonte, Marcello
name: Fazio, Rosario
name: Pagano, Guido
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quantum systems evolving unitarily and subject to quantum measurements exhibit various types of non-equilibrium phase transitions, arising from the competition between unitary evolution and measurements. Dissipative phase transitions in steady states of time-independent Liouvillians and measurement induced phase transitions at the level of quantum trajectories are two primary examples of such transitions. Investigating a many-body spin system subject to periodic resetting measurements, we argue that many-body dissipative Floquet dynamics provides a natural framework to analyze both types of transitions. We show that a dissipative phase transition between a ferromagnetic ordered phase and a paramagnetic disordered phase emerges for long-range systems as a function of measurement probabilities. A measurement induced transition of the entanglement entropy between volume law scaling and sub-volume law scaling is also present, and is distinct from the ordering transition. The two phases correspond to an error-correcting and a quantum-Zeno regimes, respectively. The ferromagnetic phase is lost for short range interactions, while the volume law phase of the entanglement is enhanced. An analysis of multifractal properties of wave function in Hilbert space provides a common perspective on both types of transitions in the system. Our findings are immediately relevant to trapped ion experiments, for which we detail a blueprint proposal based on currently available platforms.
description: accepted version, comments welcome
Critical gravitational collapse: towards a holographic understanding of the Regge region
Creators: name: Alvarez-Gaume, Luis
name: Gomez, Cesar
name: Vera, Agustin Sabio
name: Tavanfar, Alireza
name: Vazquez-Mozo, Miguel A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the possible holographic connection between the Regge limit in QCD and critical gravitational collapse of a perfect fluid in higher dimensions. We begin by analyzing the problem of critical gravitational collapse of a perfect fluid in any number of dimensions and numerically compute the associated Choptuik exponent in d=5, 6 and 7 for a range of values of the speed of sound of the fluid. Using continuous self-similarity as guiding principle, a holographic correspondence between this process and the phenomenon of parton saturation in high-energy scattering in QCD is proposed. This holographic connection relates strong gravitational physics in the bulk with (nonsupersymmetric) QCD at weak coupling in four dimensions.
description: 81 pages, 31 figures
Sustaining and improving resiliency of the bulk power system during extreme weather
Creators: P. Brandien
B. Sudduth
W. Rickerson
Publisher: name: IEEE
Year: 2022

The resilience of the transforming resource mix is more vulnerable to extreme, widespread, and long-duration temperatures shifts. For example, there is an increasing reliance on just-in-time delivery of natural gas, wind, and solar to fuel new generating capacity. For natural gas-fired generation, there is increased interdependency on delivery of fuel from the natural gas industry, which also depends on electricity to support its ability to operate. During extreme, widespread, and long duration temperatures shifts, many of these resources may become unavailable, while at the same time, the ability of transfers to make up the energy deficit is limited. Operations planning and communications with natural gas suppliers and pipelines is becoming increasingly important for the reliable and resilient operation of the bulk power system.  This panel will focus on sustaining and improving the resiliency of the transforming grid, as it becomes ever more important to sustain our way of life now and into the future.
The resilience of the transforming resource mix is more vulnerable to extreme, widespread, and long-duration temperatures shifts. For example, there is an increasing reliance on just-in-time delivery of natural gas, wind, and solar to fuel new generating capacity. For natural gas-fired generation, there is increased interdependency on delivery of fuel from the natural gas industry, which also depends on electricity to support its ability to operate. During extreme, widespread, and long duration temperatures shifts, many of these resources may become unavailable, while at the same time, the ability of transfers to make up the energy deficit is limited. Operations planning and communications with natural gas suppliers and pipelines is becoming increasingly important for the reliable and resilient operation of the bulk power system.  This panel will focus on sustaining and improving the resiliency of the transforming grid, as it becomes ever more important to sustain our way of life now and into the future.
Dark Matter Density in Disk Galaxies
Creators: name: Sellwood, J. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I show that the predicted densities of the inner dark matter halos in LCDM models of structure formation appear to be higher than estimates from real galaxies and constraints from dynamical friction on bars. This inconsistency would not be a problem for the LCDM model if physical processes that are omitted in the collisionless collapse simulations were able to reduce the dark matter density in the inner halos. I review the mechanisms proposed to achieve the needed density reduction.
description: 12 pages, 5 figures, to appear in "The Galaxy Disk in Cosmological Context" eds Andersen, Bland-Hawthorn & Nordstrom
Adapting wholesale electricity market to the decarbonization
Creators: C. Loutan
J. Pyke
Publisher: name: IEEE
Year: 2022

Increased penetration of renewable resources in the wholesale electricity market has the potential to impact revenue sufficiency of the market by suppressing average locational market prices (LMPs) and on the other hand, it can increase market price volatility that increases the divergence between the day ahead and real-time LMPs. In addition, it is necessary to evaluate the impact of high penetration of these variable resources on participating generators scheduling, system flexibility needs and strengthening the ties between energy and ancillary services market. The greater uncertainty in generation introduced by these resources can increase violation of power flows and system congestion patterns. The objective of the session is to evaluate the needs for ISO/RTO wholesale market design evolution for seamless integration of increasing shares of variable generation from the perspective of revenue sufficiency and long-term system reliability requirements. The session will be a mix of perspectives from ISO/RTO, national labs, and academia to encompass viewpoints from various stakeholders in the process.
Increased penetration of renewable resources in the wholesale electricity market has the potential to impact revenue sufficiency of the market by suppressing average locational market prices (LMPs) and on the other hand, it can increase market price volatility that increases the divergence between the day ahead and real-time LMPs. In addition, it is necessary to evaluate the impact of high penetration of these variable resources on participating generators scheduling, system flexibility needs and strengthening the ties between energy and ancillary services market. The greater uncertainty in generation introduced by these resources can increase violation of power flows and system congestion patterns. The objective of the session is to evaluate the needs for ISO/RTO wholesale market design evolution for seamless integration of increasing shares of variable generation from the perspective of revenue sufficiency and long-term system reliability requirements. The session will be a mix of perspectives from ISO/RTO, national labs, and academia to encompass viewpoints from various stakeholders in the process.
Orthogonality catastrophe and Kondo effect in graphene
Creators: name: Hentschel, Martina
name: Guinea, Francisco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Anderson's orthogonality catastrophe in graphene, at energies close to the Dirac point, is analyzed. It is shown that, in clean systems, the orthogonality catastrophe is suppressed, due to the vanishing density of states at the Dirac point. In the presence of preexisting localized states at the Dirac energy, the orthogonality catastrophe shows similar features to those found in normal metals with a finite density of states at the Fermi level. The implications for the Kondo effect induced by magnetic impurities, and for the Fermi edge singularities in tunneling processes are also discussed.
description: 7 pages, 7 figures
Probing Strong Coupling between a Microwave Cavity and a Spin Ensemble with Raman Heterodyne Spectroscopy
Creators: name: King, Gavin G. G.
name: Barnett, Peter S.
name: Bartholomew, John G.
name: Faraon, Andrei
name: Longdell, Jevon J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Raman heterodyne spectroscopy is a powerful tool for characterizing the energy and dynamics of spins. The technique uses an optical pump to transfer coherence from a spin transition to an optical transition where the coherent emission is more easily detected. Here Raman heterodyne spectroscopy is used to probe an isotopically purified ensemble of erbium dopants, in a yttrium orthosilicate (Y$_2$SiO$_5$) crystal coupled to a microwave cavity. Because the erbium electron spin transition is strongly coupled to the microwave cavity, we observed Raman heterodyne signals at the resonant frequencies of the hybrid spin-cavity modes (polaritons) rather than the bare erbium spin transition frequency. Using the coupled system, we made saturation recovery measurements of the ground state spin relaxation time T$_1$ = 10$\pm$3 seconds, and also observed Raman heterodyne signals using an excited state spin transition. We discuss the implications of these results for efforts towards converting microwave quantum states to optical quantum states.
description: 9 pages, 5 figures
Refugees and the Revitalization of 'Shrinking Cities': Challenges and Opportunities
Creators: name: Schemschat, Norma
Publisher: name: Zenodo
Year: 2020
Subjects: refugees
shrinking cities
revitalization
discourses
belonging

description: In the past years, mayors and planners in Europe and the U S have discussed the revitalization of so called ‘shrinking cities’ by welcoming refugees.One of the most well known examples is Cleveland’s Dream Neighborhood (Day 2017 The idea has gained new momentum among city officials in Europe following 2015 ’s “long summer of migration migration” (Hess et al 2016 during which many refugees sought asylum in Europe and beyond. ‘Shrinking cities’ struggle with the effects of depopulation as major driver of urban shrinkage Refugees, so it is hoped, can help reverse population losses and, by that, shrinkage in general However, is it really that simple? While the argument of abundant housing is strong in times more and more people on the move, long term considerations must go beyond mere accommodation (Meier 2018 The thesis investigates belonging as important social, political and personal factor which needs to be drawn into consideration when discussing refugees’ role in revitalization processes.
แนวทางการบริหารงานบุคคลของข้าราชการครูและบุคลากรทางการศึกษาสังกัดองค์การบริหารส่วนจังหวัดมหาสารคาม
Creators: name: ดวงจันทร์ สุขวิชัย
name: ศิริ ถือาสนา
name: สมบัติ ฤทธิเดช
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2010
Subjects: การบริหารงานบุคคล, ข้าราชการครู, บุคลากรทางการศึกษา

description: 3, 4, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
การพัฒนาหลักสูตรฝึกอบรมวิทยากรเพื่อพัฒนาบุคลากร ศูนย์พัฒนาเด็กเล็ก องค์การบริหารส่วนตำบล
Creators: name: ทัศนีย์ นาคุณทรง
name: ไพโรจน์ สถิรยากร
name: ฟิสิฐ เมธาภัทร
name: มันต์ชัย เทียนทอง
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2010
Subjects: หลักสูตรฝึกอบรมวิทยากร, วิทยากร, ศูนย์พัฒนาเด็กเล็ก

description: 3, 4, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
Primordial Black Hole Evaporation and Dark Matter Production: I. Solely Hawking radiation
Creators: name: Cheek, Andrew
name: Heurtier, Lucien
name: Perez-Gonzalez, Yuber F.
name: Turner, Jessica
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Hawking evaporation of black holes in the early Universe is expected to copiously produce all kinds of particles, regardless of their charges under the Standard Model gauge group. For this reason, any fundamental particle, known or otherwise, could be produced during the black hole lifetime. This certainly includes dark matter (DM) particles. This paper improves upon previous calculations of DM production from primordial black holes (PBH) by consistently including the greybody factors, and by meticulously tracking a system of coupled Boltzmann equations. We show that the initial PBH densities required to produce the observed relic abundance depend strongly on the DM spin, varying in about $\sim 2$ orders of magnitude between a spin-2 and a scalar DM in the case of non-rotating PBHs. For Kerr PBHs, we have found that the expected enhancement in the production of bosons reduces the initial fraction needed to explain the measurements. We further consider indirect production of DM by assuming the existence of additional and unstable degrees of freedom emitted by the evaporation, which later decay into the DM. For a minimal setup where there is only one heavy particle, we find that the final relic abundance can be increased by at most a factor of $\sim 4$ for a scalar heavy state and a Schwarzschild PBH, or by a factor of $\sim 4.3$ for a spin-2 particle in the case of a Kerr PBH.
description: 20 pages, 10 figures, code available at https://github.com/earlyuniverse/ulysses Added clarifying comments and figures. Matches published version
Influence of the Radio-Frequency source properties on RF-based atom traps
Creators: name: Morizot, Olivier
name: Longchambon, Laurent
name: Easwaran, Raghavan Kollengode
name: Dubessy, Romain
name: Knyazchyan, Elena
name: Pottie, Paul-Eric
name: Lorent, Vincent
name: Perrin, Hélène
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We discuss the quality required for the RF source used to trap neutral atoms in RF-dressed potentials. We illustrate this discussion with experimental results obtained on a Bose-Einstein condensation experiment with different RF sources.
description: 5 figures, 7 pages
Distributed In-memory Data Management for Workflow Executions
Creators: name: Souza, Renan
name: Silva, Vítor
name: Lima, Alexandre A. B.
name: de Oliveira, Daniel
name: Valduriez, Patrick
name: Mattoso, Marta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: H.2; C.4
subject: 65Y05, 68P15, 68P20

description: Complex scientific experiments from various domains are typically modeled as workflows and executed on large-scale machines using a Parallel Workflow Management System (WMS). Since such executions usually last for hours or days, some WMSs provide user steering support, i.e., they allow users to run data analyses and, depending on the results, adapt the workflows at runtime. A challenge in the parallel execution control design is to manage workflow data for efficient executions while enabling user steering support. Data access for high scalability is typically transaction-oriented, while for data analysis, it is online analytical-oriented so that managing such hybrid workloads makes the challenge even harder. In this work, we present SchalaDB, an architecture with a set of design principles and techniques based on distributed in-memory data management for efficient workflow execution control and user steering. We propose a distributed data design for scalable workflow task scheduling and high availability driven by a parallel and distributed in-memory DBMS. To evaluate our proposal, we develop d-Chiron, a WMS designed according to SchalaDB's principles. We carry out an extensive experimental evaluation on an HPC cluster with up to 960 computing cores. Among other analyses, we show that even when running data analyses for user steering, SchalaDB's overhead is negligible for workloads composed of hundreds of concurrent tasks on shared data. Our results encourage workflow engine developers to follow a parallel and distributed data-oriented approach not only for scheduling and monitoring but also for user steering.
description: 26 pages, 14 figures, PeerJ Computer Science (2021)
A 12CO, 13CO, and C18O Survey of Infrared Dark Clouds
Creators: name: Du, Fujun
name: Yang, Ji
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: InfraRed Dark Clouds (IRDCs) are extinction features against the Galactic infrared background, mainly in mid-infrared band. Recently they were proposed to be potential sites of massive star formation. In this work we have made 12CO, 13CO, and C18O (J=1-0) survey of 61 IRDCs, 52 of which are in the first Galactic quadrant, selected from a catalog given by Simon et al. (2006), while the others are in the outer Galaxy, selected by visually inspecting the MSX images. Detection rates in the three CO lines are 90%, 71%, and 62% respectively. The distribution of IRDCs in the first Galactic quadrant is consistent with the 5 kpc molecular ring picture, while slight trace of spiral pattern can also be noticed, which needs to be further examined. The IRDCs have typical excitation temperature of 10 K and typical column density of several 10^{22} cm^{-2}. Their typical physical size is estimated to be several pcs using angular sizes from the Simon catalog. Typical volume density and typical LTE mass are ~5000 cm^{-3} and ~5000 M_{sun} respectively. The IRDCs are in or near virial equilibrium. The properties of IRDCs are similar to those of star forming molecular clumps, and they seem to be intermediate between giant molecular clouds and Bok globules, thus they may represent early stages of massive star formation.
description: 35 pages, including 4 tables and 12 figures. Accepted by ApJ
Design IBR Models for Fast Simulation and Stability Analysis
Creators: B. Badrzadeh
D. Ramasubramanian
W. Baker
Publisher: name: IEEE
Year: 2022

Inverter-based resource (IBR) grid integration requires sufficient planning studies with adequate dynamic models. The grid industry is pushing for OEM electromagnetic transient (EMT) models of IBRs with granular details to be used.  This panel focuses on how to better utilize the EMT models of IBRs to achieve fast time-domain simulation and linear system-based stability analysis. Recent research results on measurement-based admittance modeling considering variety of operating conditions, fast simulation via admittance models, reduced-order model structure design, and model parameter tuning via measurement data will be disseminated through this panel. The speakers are leading researchers in this area from both academia and industry.
Inverter-based resource (IBR) grid integration requires sufficient planning studies with adequate dynamic models. The grid industry is pushing for OEM electromagnetic transient (EMT) models of IBRs with granular details to be used.  This panel focuses on how to better utilize the EMT models of IBRs to achieve fast time-domain simulation and linear system-based stability analysis. Recent research results on measurement-based admittance modeling considering variety of operating conditions, fast simulation via admittance models, reduced-order model structure design, and model parameter tuning via measurement data will be disseminated through this panel. The speakers are leading researchers in this area from both academia and industry.
การพัฒนาบทเรียนคอมพิวเตอร์บนเครือข่ายกลุ่มสาระการเรียนรู้การงานอาชีพและเทคโนโลยี ชั้นประถมศึกษาปีที่ 6 ที่มีการเรียนรู้แบบร่วมมือ
Creators: name: สมศักดิ์ ศรีรุ่งเรือง
name: ประวิทย์ สิมมาทัน
name: สนิท ตีเมืองซ้าย
name: ขุนเพชร ใจปันทา
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2011
Subjects: บทเรียนคอมพิวเตอร์บนเครือข่าย, การเรียนรู้แบบร่วมมือ

description: 1, 5, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
Primordial Black Hole Evaporation and Dark Matter Production: II. Interplay with the Freeze-In/Out Mechanism
Creators: name: Cheek, Andrew
name: Heurtier, Lucien
name: Perez-Gonzalez, Yuber F.
name: Turner, Jessica
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study how the evaporation of primordial black holes (PBHs) can affect the production of dark matter (DM) particles through thermal processes. We consider fermionic DM interacting with Standard Model particles via a spin-1 mediator in the context of a Freeze-Out or Freeze-In mechanism. We show that when PBHs evaporate after dominating the Universe's energy density, PBHs act as a source of DM and continuously inject entropy into the visible sector that can affect the thermal production in three qualitatively different ways. We compute the annihilation cross-sections which account for the interactions between and within the PBH produced and thermally produced DM populations, and establish a set of Boltzmann equations which we solve to obtain the correct relic abundance in those different regimes and confront the results with a set of different cosmological constraints. We provide analytic formulae to calculate the relic abundance for the Freeze-Out and Freeze-In mechanism in a PBH dominated early Universe. We identify regions of the parameter space where the PBHs dilute the relic density and thermalization occurs. Furthermore, we have made our code that numerically solves the Boltzmann equations publicly available.
description: 21 pages, 13 figures, code available at https://github.com/earlyuniverse/ulysses Added clarifying comments. Matches published version
title: Exploring the relationship between age stereotypes and older adults' physical performance
Creators: name: Farr, Ian
Publisher: name: University of Kent
Year: 2021

description: There is a wealth of research exploring the biological, physical and physiological changes that occur with age to subsequently impact on older adults' physical ability and performance. In contrast, there is much less research exploring psychological determinants of older adults' physical ability and performance, despite some compelling evidence that age stereotypes can have an impact. This thesis explores the potential impact of age stereotypes further taking a mixed methods approach. Using an experimental design, Studies 1 and 2 aimed to replicate and extend age-based stereotype threat (ABST) theory. ABST is the concern that someone has for confirming a negative stereotype of their age-group, when they are required to perform in the stigmatized task domain and evidence suggests it has a detrimental impact on cognitive tasks (Lamont, Swift, & Abrams, 2015), as well physical tasks such as hand-grip (Swift, Lamont, & Abrams, 2012). Study 1 extends Swift et al (2012) by using more precise physical and physiological measures. Study 2 extends ABST understanding by exploring the impact on a new physical performance task measuring balance. These studies find partial support for ABST. Study 3 used existing survey data (ELSA) to test the hypothesis that internalised negative age stereotypes are associated with physical performance outcomes and subsequently puts older adults at increased risk of a fall. Studies 4 and 5 explore the associations between negative age stereotypes and physical performance in applied settings, including a dance group (Study 4) and a care home (Study 5). The studies reveal that physical activity can be an effective intervention for improving older adults' attitudes to age. The findings are discussed in relation to psychological theories, ABST and stereotype embodiment theory, as well as proposing the integration of findings with biological models of age related change. Limitations and future recommendations are also discussed.
Northern hemisphere atmospheric response to Arctic summer sea ice loss in the CNRM-CM6 climate model : mechanisms and impacts
Creators: name: Svenya Chripko, Rym Msadek
Publisher: name: Zenodo
Year: 2019
Subjects: atmospheric linkages

description: Summary of the presentation given im Vienna at EGU 2019 by Svenya Chripko and by Rym Msadek at a CMIP6 workshop in Bordeaux (France) in May 2019.