cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Improved respiratory muscle endurance of highly trained cyclists and the effects on maximal exercise performance
Creators: name: Fairbarn, Mary Sue
Publisher: name: University of British Columbia
Year: 2010

description: To study the effects of 4 weeks of isocapnic hyperventilation training on the respiratory muscle (RM) endurance and cycling performance, 10 highly trained male cyclists (VO₂max = 66 +. 5 ml/kg/min) were assigned to equal experimental (E) and control (C) groups. The following measurements were obtained for each subject both the hyperpnea training period: maximal sustained ventilatory capacity (MSVC), maximal oxygen consumption (VO₂max), maximal exercise ventilation (V[sub E]max), a performance cycle test at 90% VO₂max (tlim), maximal ventilation during tlim (V[sub E]tlim), Forced expiratory volume in one second (FEV₁), Forced vital capacity (FVC), and Maximum voluntary ventilation in 12 seconds (MVV₁₂). For the E group, the training consisted of three, 8 minute intervals of hyperpnea per session, 4 times a week. Following training, the MSVC of the experimental subjects increased significantly (155.4 ± 11 to 173.9 + 12 1/min; p = 0.004) with no change for the control group (155.1 ± 26 vs 149.5 ± 34 1/min, p > 0.05). VO₂max was not significantly changed for the E group (64.2 ± 1.9 vs 65.8 ± 4.8 ml/kg/min, p > 0.05) nor for the C group (68.0 ± 6.6 vs 67.1 ± 5.8 ml/kg/min, p > 0.05). Similarly, no significant differences were observed for tlim (342.2 ± 75 vs 427.8 ± 226.1 sec for the E group and 328.6 ± 99 vs 342.4 ± 80 sec for the C group, p > 0.05). There were also no significant changes for either the E group or for the C group for the measurements of V[sub E]max (177.0 ± 22 vs 177.1 ± 13 1/min; 171.4 ± 36 vs 167.5 ± 21 1/min); V[sub E]tlim (176.0 ± 16 vs 178.5 ± 19 1/min; 174.0 ± 29 vs 176.3 ± 27 1/min); FEV, (4.4 ± 0.3 vs 4.5 ± 0.4 1/; 4.8 ± 0.6 vs 4.7 ± 0.7 1); FVC (5.5 ± 0.9 vs 5.7 ± 1.0 1; 5.7 ± 0.7 vs 5.6 ± 0.7 1); or MVV₁₂ ( 205.5 ± 15 vs 216.3 ± 19 1/min; 215.2 ± 20 vs 223.3 ± 26 1/min, all p > 0.05). Results of this study indicate that the RM endurance of highly trained male cyclists can be increased following specific hyperpnea training but this does not result in changes in maximal exercise performance.
Public Perceptions of Social Assistance in Indonesia
Creators: name: , Habibullah
Publisher: name: Zenodo
Year: 2022
Subjects: Social assistance; Poverty reduction; Social protection; Public perception; Indonesia

description: This study aimed to the public perception of social assistance provided by the Goverment of Republic Indonesia. Beneficiaries are satisfied with the social assistance received. However, social assistance creates dependency, beneficiaries do not want their help to be stopped and they remain trapped in poverty. Public perceptions of social assistance create dependency on beneficiaries of social assistance and weaken tradition, local wisdom and mutual assistance. The solution offered by the government in overcoming poverty is only a practical solution without touching the root of the problem Therefore, assistance should be given to fulfill basic needs while being temporary and supported by empowerment efforts.
Supplementary appendix_Voice as a biomaker for acroemgaly_jcem 2024
Creators: name: Vouzouneraki, Konstantina
name: Nylén, Fredrik
name: Holmberg, Jenny
name: Olsson, Tommy
name: Berinder, Katarina
name: Höybye, Charlotte
name: Petersson, Maria
name: Bensing, Sophie
name: Åkerman, Anna-Karin
name: Borg, Henrik
name: Ekman, Bertil
name: Robért, Jonas
name: Edén-Engström, Britt
name: Ragnarsson, Oskar
name: Burman, Pia
name: Dahlqvist, Per
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320208
subject: Endocrinology

description: This repository contains the supplementary appendix for the research article: Digital voice analysis as a biomarker of acromegaly.
Backreaction of Mass and Angular Momentum Accretion on Black Holes: General Formulation of the Metric Perturbations and Application to the Blandford-Znajek Process
Creators: name: Kimura, Masashi
name: Harada, Tomohiro
name: Naruko, Atsushi
name: Toma, Kenji
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the metric backreaction of mass and angular momentum accretion on black holes. We first develop the formalism of monopole and dipole linear gravitational perturbations around the Schwarzschild black holes in the Eddington-Finkelstein coordinates against the generic time-dependent matters. We derive the relation between the time dependence of the mass and angular momentum of the black hole and the energy-momentum tensors of accreting matters. As a concrete example, we apply our formalism to the Blandford-Znajek process around the slowly rotating black holes. We find that the time dependence of the monopole and dipole perturbations can be interpreted as the slowly rotating Kerr metric with time-dependent mass and spin parameters, which are determined from the energy and angular momentum extraction rates of the Blandford-Znajek process. We also show that the Komar angular momentum and the area of the apparent horizon are decreasing and increasing in time, respectively, while they are consistent with the Blandford-Znajek argument of energy extraction in term of black hole mechanics if we regard the time-dependent mass parameter as the energy of the black hole.
description: 35 pages, v2: minor revisions, v3: minor revisions, accepted for publication in PTEP
Data from the article: The genome formula of a multipartite virus is regulated both at the individual segment and the segment group level
Creators: name: BLANC, Stéphane
name: Michalakis, Yannis
name: Bonnamy, Mélia
Publisher: name: Zenodo
Year: 2023

description: These files corresponds to qPCR data and scripts for statistical analysis for the paper from Bonnamy et al  entitled:

The genome formula of a multipartite virus is regulated both at the individual segment and the segment group level
A correlation-locking adaptive filtering technique for minimum variance integral control in adaptive optics
Creators: name: Deo, Vincent
name: Gendron, Éric
name: Vidal, Fabrice
name: Rozel, Milan
name: Sevin, Arnaud
name: Ferreira, Florian
name: Gratadour, Damien
name: Galland, Nicolas
name: Rousset, Gérard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We propose the Correlation-Locking Optimization SchEme (CLOSE), a real-time adaptive filtering technique for adaptive optics (AO) systems controlled with integrators. CLOSE leverages the temporal autocorrelation of modal signals in the controller telemetry and drives the gains of the integral command law in a closed servo-loop. This supervisory loop is configured using only a few scalar parameters, and automatically controls the modal gains to closely match transfer functions achieving minimum variance control. This optimization is proven to work throughout the range of noise and seeing conditions relevant to the AO system. This technique has been designed while preparing the high-order AO systems for extremely large telescopes, in particular for tackling the optical gain (OG) phenomenon -- a sensitivity reduction induced by on-sky residuals -- which is a prominent issue with pyramid wavefront sensors (PWFS). CLOSE follows upon the linear modal compensation approach to OG, previously demonstrated to substantially improve AO correction with high order PWFS systems. Operating on modal gains through multiplicative increments, CLOSE naturally compensates for the recurring issue of unaccounted sensitivity factors throughout the AO loop. We present end-to-end simulations of the MICADO instrument single-conjugate AO to demonstrate the performances and capabilities of CLOSE. We demonstrate that a single configuration shall provide an efficient and versatile optimization of the modal integrator while accounting for OG compensation, and while providing significant robustness to transient effects impacting the PWFS sensitivity.
description: 19 pages, 14 figures. To be published in Astronomy & Astrophysics
Bubbling Surface Operators And S-Duality
Creators: name: Gomis, Jaume
name: Matsuura, Shunji
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct smooth asymptotically AdS_5xS^5 solutions of Type IIB supergravity corresponding to all the half-BPS surface operators in N=4 SYM. All the parameters labeling a half-BPS surface operator are identified in the corresponding bubbling geometry. We use the supergravity description of surface operators to study the action of the SL(2,Z) duality group of N=4 SYM on the parameters of the surface operator, and find that it coincides with the recent proposal by Gukov and Witten in the framework of the gauge theory approach to the geometrical Langlands with ramification. We also show that whenever a bubbling geometry becomes singular that the path integral description of the corresponding surface operator also becomes singular.
description: 26 pages, harvmac; minor typos corrected and reference added, typos fixed
Theory of spin-Hall magnetoresistance in the AC (terahertz) regime
Creators: name: Reiss, David A.
name: Kampfrath, Tobias
name: Brouwer, Piet W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In bilayers consisting of a normal metal (N) with spin-orbit coupling and a ferromagnet (F), the combination of the spin-Hall effect, the spin-transfer torque, and the inverse spin-Hall effect gives a small correction to the in-plane conductivity of N, which is referred to as spin-Hall magnetoresistance (SMR). We here present a theory of the SMR and the associated off-diagonal conductivity corrections for frequencies up to the terahertz regime. We show that the SMR signal has pronounced singularities at the spin-wave frequencies of F, which identifies it as a potential tool for all-electric spectroscopy of magnon modes. A systematic change of the magnitude of the SMR at lower frequencies is associated with the onset of a longitudinal magnonic contribution to spin transport across the F-N interface.
description: 21 pages, 9 figures
DIRC-like time-of-flight detector for the experiment at the Super Tau-Charm Facility
Creators: name: Qi, Binbin
name: Li, Ziwei
name: Shao, Ming
name: Liu, Jianbei
name: Fang, Zhujun
name: Shi, Huangchao
name: Li, Xin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Super Tau-Charm Facility (STCF) is a future electron-positron collider proposed in China with a peak luminosity of above 0.5$\times$10$^{35}$ cm$^{-2}$s$^{-1}$ and center-of-mass energy ranging from 2 to 7 GeV. An excellent particle identification (PID) capability is one of the most important requirements for the detector at the STCF. A 3$σ$ $π$/K separation power at the momentum of up to 2 GeV/c is required within the detector acceptance. A DIRC-like time-of-flight (DTOF) detector is proposed to meet the PID requirement for the endcap region of the STCF. The conceptual design of the DTOF detector and its geometry optimization is herein presented. The PID performance of the detector is studied using Geant4 simulation. With a proper reconstruction algorithm, an overall time resolution of ~50 ps is achieved for the detector with an optimum geometry when convoluting contributions from all other sources, including the transit time spread (TTS) of the photodetector, electronic timing accuracy, and an assumed precision (~40 ps) of the event start time. A $π$/K separation power of better than 4$σ$ at the momentum of 2 GeV/c is achieved over the entire sensitive area of the DTOF detector, thereby fulfilling the physics requirement of the PID detector for the experiment at the STCF.
description: accepted for Journal of Instrumentation
On the Possibility of Stellar Lenses in the Black Hole Candidate Microlensing Events MACHO-96-BLG-5 and MACHO-98-BLG-6
Creators: name: Abdurrahman, Fatima N.
name: Stephens, Haynes F.
name: Lu, Jessica R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Though stellar-mass black holes (BHs) are likely abundant in the Milky Way (N=10^8-10^9), only ~20 have been detected to date, all in accreting binary systems (Casares 2006). Gravitational microlensing is a proposed technique to search for isolated BHs, which to date have not been detected. Two microlensing events, MACHO-1996-BLG-5 (M96-B5) and MACHO-1998-BLG-6 (M98-B6), initially observed near the lens-source minimum angular separation in 1996 and 1998, respectively, have long Einstein crossing times (>300 days), identifying the lenses as candidate black holes. Twenty years have elapsed since the time of lens-source closest approach for each of these events, indicating that if the lens and source are both luminous, and if their relative proper motion is sufficiently large, the two components should be spatially resolvable. We attempt to eliminate the possibility of a stellar lens for these events by: (1) using Keck near-infrared adaptive optics images to search for a potentially now-resolved, luminous lens; and (2) examining multi-band photometry of the source to search for flux contributions from a potentially unresolved, luminous lens. We combine detection limits from NIRC2 images with light curve data to eliminate all non-BH lenses for relative lens-source proper motions above 0.81 mas/yr for M96-B5 and 2.48 mas/yr for M98-B6. Further, we use WFPC2 broadband images to eliminate the possibility of stellar lenses at any proper motion. We present the narrow range of non-BH possibilities allowed by our varied analyses. Finally, we suggest future observations that would constrain the remaining parameter space with the methods developed in this work.
description: Accepted to ApJ on March 13, 2021
Chemical-Potential-Assisted Particle Production in FRW Spacetimes
Creators: name: Sou, Chon Man
name: Tong, Xi
name: Wang, Yi
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 analyze gravitational particle production assisted by chemical potential. By utilizing the uniformly smoothed Stokes-line method and Borel summation, we gain insight into the fine-grained history of enhanced particle production. Analytic/semi-analytic formulae describing the production amount, time and width are obtained for both spin-1 and spin-1/2 particles in various FRW spacetimes. Our work also serves as a concrete demonstration of the uniformly smoothed Stokes-line method applied to cosmology.
description: 48 pages, 27 figures; v2: 49 pages, 27 figures, with minor changes
Resolving Cosmic Gamma Ray Anomalies with Dark Matter Decaying Now
Creators: name: Cembranos, Jose A. R.
name: Feng, Jonathan L.
name: Strigari, Louis E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark matter particles need not be completely stable, and in fact they may be decaying now. We consider this possibility in the frameworks of universal extra dimensions and supersymmetry with very late decays of WIMPs to Kaluza-Klein gravitons and gravitinos. The diffuse photon background is a sensitive probe, even for lifetimes far greater than the age of the Universe. Remarkably, both the energy spectrum and flux of the observed MeV gamma ray excess may be naturally explained by decaying dark matter with MeV mass splittings. Future observations of continuum and line photon fluxes will test this explanation and may provide novel constraints on cosmological parameters.
description: 4 pages, 4 figures. Published Version
Additional file 1 of Transcriptome and metabolome analysis reveals key genes and secondary metabolites of Casuarina equisetifolia ssp. incana in response to drought stress
Creators: name: Zhang, Shike
name: He, Chunmei
name: Wei, Long
name: Jian, Shuguang
name: Liu, Nan
Publisher: name: figshare
Year: 2023
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Supplementary Material 1
11th OpenAIRE Content Providers Community Call
Creators: name: Príncipe, Pedro
name: Czerniak, Andreas
name: Schirrwagen, Jochen
name: Vieira, André
Publisher: name: Zenodo
Year: 2021
Subjects: OpenAIRE
OpenAIRE Provide
Broker service
Metadata enrichments
OpenAIRE API
Guidelines

description: OpenAIRE Content Providers Community Call, February 3rd, 2021 This community call was focused on the relevant updates on the OpenAIRE infrastructure, and their impact on the activity of data sources that are using the OpenAIRE services. Was also an opportunity to share the most recent updates and novelties in the OpenAIRE Content Provider Dashboard, and to get feedback from community. Recordings: https://youtu.be/I-86wf_Z3HY Follow the Community activities at https://www.openaire.eu/provide-community-calls
The VVDS type-1 AGN sample: The faint end of the luminosity function
Creators: name: Bongiorno, A.
name: Zamorani, G.
name: Gavignaud, I.
name: Marano, B.
name: Paltani, S.
name: Mathez, G.
name: Picat, J. P.
name: Cirasuolo, M.
name: Lamareille, F.
name: Bottini, D.
name: Garilli, B.
name: Brun, V. Le
name: Fevre, O. Le
name: Maccagni, D.
name: Scaramella, R.
name: Scodeggio, M.
name: Tresse, L.
name: Vettolani, G.
name: Zanichelli, A.
name: Adami, C.
name: Arnouts, S.
name: Bardelli, S.
name: Bolzonella, M.
name: Cappi, A.
name: Charlot, S.
name: Ciliegi, P.
name: Contini, T.
name: Foucaud, S.
name: Franzetti, P.
name: Guzzo, L.
name: Ilbert, O.
name: Iovino, A.
name: McCracken, H. J.
name: Marinon, C.
name: Mazure, A.
name: Meneux, B.
name: Merighi, R.
name: Pello', R.
name: Pollo, A.
name: Pozzetti, L.
name: Radovich, M.
name: Zucca, E.
name: Hatziminaoglou, E.
name: Polletta, M.
name: Bondi, M.
name: Brinchmann, J.
name: Cucciati, O.
name: de la Torre, S.
name: Gregorini, L.
name: Mellier, Y.
name: Merluzzi, P.
name: Temporin, S.
name: Vergani, D.
name: Walcher, C. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In a previous paper (Gavignaud et al. 2006), we presented the type-1 Active Galactic Nuclei (AGN) sample obtained from the first epoch data of the VIMOS-VLT Deep Survey (VVDS). The sample consists of 130 faint, broad-line AGN with redshift up to z=5 and 17.5< I <24.0, selected on the basis of their spectra. In this paper we present the measurement of the Optical Luminosity Function up to z=3.6 derived from this sample, we compare our results with previous results from brighter samples both at low and at high redshift. Our data, more than one magnitude fainter than previous optical surveys, allow us to constrain the faint part of the luminosity function up to high redshift. By combining our faint VVDS sample with the large sample of bright AGN extracted from the SDSS DR3 (Richards et al., 2006b) and testing a number of different evolutionary models, we find that the model which better represents the combined luminosity functions, over a wide range of redshift and luminosity, is a luminosity dependent density evolution (LDDE) model, similar to those derived from the major X-surveys. Such a parameterization allows the redshift of the AGN space density peak to change as a function of luminosity and explains the excess of faint AGN that we find at 1.0< z <1.5. On the basis of this model we find, for the first time from the analysis of optically selected samples, that the peak of the AGN space density shifts significantly towards lower redshift going to lower luminosity objects. This result, already found in a number of X-ray selected samples of AGN, is consistent with a scenario of "AGN cosmic downsizing", in which the density of more luminous AGN, possibly associated to more massive black holes, peaks earlier in the history of the Universe, than that of low luminosity ones.
description: 13 pages, 10 figures, submitted to A&A
Harmonic analysis on local fields and adelic spaces I
Creators: name: Osipov, D. V.
name: Parshin, A. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We develop a harmonic analysis on objects of some category $C_2$ of infinite-dimensional filtered vector spaces over a finite field. It includes two-dimensional local fields and adelic spaces of algebraic surfaces defined over a finite field. The main result is the theory of the Fourier transform on these objects and two-dimensional Poisson formulas.
description: 69 pages; corrected typos and inserted some changes into the last section
Scaling cosmologies, geodesic motion and pseudo-susy
Creators: name: Chemissany, Wissam
name: ploegh, André
name: Van Riet, Thomas
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: One-parameter solutions in supergravity carried by scalars and a metric trace out curves on the scalar manifold. In ungauged supergravity these curves describe a geodesic motion. It is known that a geodesic motion sometimes occurs in the presence of a scalar potential and for time-dependent solutions this can happen for scaling cosmologies. This note contains a further study of such solutions in the context of pseudo-supersymmetry for multi-field systems whose first-order equations we derive using a Bogomol'nyi-like method. In particular we show that scaling solutions that are pseudo-BPS must describe geodesic curves. Furthermore, we clarify how to solve the geodesic equations of motion when the scalar manifold is a maximally non-compact coset such as occurs in maximal supergravity. This relies upon a parametrization of the coset in the Borel gauge. We then illustrate this with the cosmological solutions of higher-dimensional gravity compactified on a $n$-torus.
description: 14 pages, slight change in title, references added, typos corrected. Version accepted for publication in Class. Quantum Grav
Alpha-decay spectroscopy of $^{257}$Rf
Creators: name: Hauschild, K.
name: Lopez-Martens, A.
name: Chakma, R.
name: Dorvaux, O.
name: Gall, B.
name: Chelnokov, M. L.
name: Chepigin, V. I.
name: Isaev, A. V.
name: Izosimov, I. N.
name: Katrasev, D. E.
name: Kuznetsova, A. A.
name: Malyshev, O. N.
name: Popeko, A. G.
name: Popov, Yu. A.
name: Sokol, E. A.
name: Svirikhin, A. I.
name: Yeremin, A. V.
name: Ackermann, D.
name: Piot, J.
name: Mosat, P.
name: Andel, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The decay properties of the ground state and excited states of $^{257}$Rf have been investigated with the detector array GABRIELA at the FLNR, Dubna. The electromagnetic decay of a new excited state in $^{253}$No has been observed. The state lies 750 keV above the ground state and is favourably populated in the alpha decay of the low-lying spin isomer of $^{257}$Rf. It decays to the 9/2$^-$ ground state by an M1 transition and is assigned the 11/2$^-$[725] Nilsson configuration. The presence of this state suggests a possible reinterpretation of the decay of the high-K isomer in $^{253}$No.
description: 7 pages, 4 figures
Greybody factors in a rotating black-hole background-II : fermions and gauge bosons
Creators: name: Creek, S.
name: Efthimiou, O.
name: Kanti, P.
name: Tamvakis, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the emission of fermion and gauge boson degrees of freedom on the brane by a rotating higher-dimensional black hole. Using matching techniques, for the near-horizon and far-field regime solutions, we solve analytically the corresponding field equations of motion. From this, we derive analytical results for the absorption probabilities and Hawking radiation emission rates, in the low-energy and low-rotation case, for both species of fields. We produce plots of these, comparing them to existing exact numerical results with very good agreement. We also study the total absorption cross-section and demonstrate that, as in the non-rotating case, it has a different behaviour for fermions and gauge bosons in the low-energy limit, while it follows a universal behaviour -- reaching a constant, spin-independent, asymptotic value -- in the high-energy regime.
description: 22 pages, 8 figures, added references
Automated Revenue Prediction Modeling
Creators: name: Miano, Thomas
Publisher: name: Zenodo
Year: 2020
Subjects: Machine Learning
MLOps
Financial Analytics
DevOps

description: RTI International has built a financial forecasting tool that we call Revenue Prediction Model (RPM). RPM ingests financial data from multiple databases, cleans the data, performs forecasting through cascading machine learning models, and generates daily reports in an interactive web dashboard that illustrates forecasted financial metrics for projects over time. RPM is used by financial analysts and business decision-makers at RTI to understand our financial health and outlook, which in turn allows us to make more informed decisions so that we can better serve our clients. In this presentation we will provide a system overview, describing our methods for creating a forecasting tool that generates daily reports and has automated quarterly model training, evaluation, and deployment to production. This talk will touch on Python in production, DevOps, MLOps, and process automation. We will describe the interaction between all of these pieces, our layers of modeling, and how we have set up continuous integration and continuous deployment (CI/CD) for pull requests and build and release pipelines and for automated model training, evaluation, and deployment to our development and production environments. This presentation focuses on system design and implementation.
RISIS Research Seminar: Signal sequences: Venture Capital, IPO and Valuation of Entrepreneurial Ventures at Acquisitions
Creators: name: Colombo, Massimo
name: Montanaro, Benedetta
name: Vanacker, Tom
Publisher: name: Zenodo
Year: 2021
Subjects: entrepreneurial ventures
multiple signals influences
VICO dataset

description: The paper studies how a sequence composed of multiple signals influences the valuation that entrepreneurial ventures receive at acquisition. Along the venture life-cycle, startups generally first obtain capital from VCs and then go through an IPO. In particular, the strength of the former signal influences the way receiver perceive the latter signal and may become a double edged sword. We argue that, after receiving a strong signal relating to the type of VCs that are backing a focal startup, investors set a high aspiration level about the quality of the startup. Consequently, a subsequent weak signal relating to the type of stock market in which the startup is listed may have a detrimental effect on firm’s valuation. We test our hypotheses performing a difference-in-difference model on a sample of 1935 European entrepreneurial ventures. Results show that a strong signal related to being VC-backed will make market observers set their expectations on the firm’s quality at a higher level, so that becoming public on a less reputable market will decrease its valuation. Tom Vanacker from Ghent University presented his discussion on the paper.
The End of a Black Hole's Evaporation -- Part II
Creators: name: Soltani, Farshid
name: Rovelli, Carlo
name: Martin-Dussaud, Pierre
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive an explicit expression for the transition amplitude from black to white hole horizon at the end of Hawking evaporation using covariant loop quantum gravity.
description: 10 pages, 12 figures. V2: added references, corrected typos
การจัดการท่องเที่ยวโดยชุมชนแบบมีส่วนร่วมของชุมชนรอบพื้นที่ เหมืองแม่เมาะอำเภอแม่เมาะ จังหวัดลำปาง
Creators: name: คมกฤต วงษ์นาง และคณะ
Publisher: name: มหาวิทยาลัยพายัพ
Year: 2556
Subjects: การจัดการท่องเที่ยวโดยชุมชน เหมืองแม่เมาะ

description: 1, 9, วารสารวิชาการการท่องเที่ยวไทยนานาชาติ
title: Young Driver Training and Socioeconomic Status: A Human-in-the-Loop Driving Simulator Evaluation
Creators: name: Glassman, Jeffrey Edward
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2024

description: Previous research consistently shows that young drivers are poor at anticipating latent hazards on the roadway compared to more experienced drivers. The Road Awareness and Perception Training (RAPT) program is a driver training program that aims to accelerate young drivers’ learning of hazard anticipation (HA) skills. More recent research has started showing evidence that RAPT may be even more effective at reducing accidents for young drivers with a lower socioeconomic status (SES), though the direct impact of RAPT on HA skills in the driver population is yet unclear. The current experiment thus directly evaluated the effectiveness of RAPT on the HA performance of drivers differing in SES using a high-fidelity driving simulator. Fifty-two participants were randomly assigned to the active or passive RAPT training group. Participants in the active RAPT group completed the original RAPT-3 that provides them the opportunity to make and mitigate errors and master the skill (3M method) to anticipate HA via error-feedback mechanism. Participants in the passive RAPT group received the knowledge about latent HA identical to that of the active RAPT group without the 3M method. Participants drove a series of eight simulated HA scenarios in the virtual environment immediately before and after completing the respective training program. The results showed credible improvement of HA performance in the active but not in the passive RAPT group, indicating the error- feedback mechanism was crucial for their learning. Additionally, contrary to our expectation, regardless of their assigned training program, high-SES drivers demonstrated greater HA skills after completing either training program than before, while low-SES drivers did not. The results imply that high-SES drivers may employ a different learning mechanism than low-SES drivers to anticipate latent hazards better on the second encounter to the scenarios. The present work suggests that the error-feedback mechanism is essential for accelerating young drivers’ learning for road safety and that low-SES drivers may not benefit equally well even from the RAPT program. More research is urgent in better understanding and characterizing how SES and other related variables influence their learning from the available driver training programs.
Magnetospectroscopy of symmetric and anti-symmetric states in double quantum wells
Creators: name: Marchewka, M.
name: Sheregii, E. M.
name: Tralle, I.
name: Ploch, D.
name: Tomaka, G.
name: Furdak, M.
name: Kolek, A.
name: Stadler, A.
name: Mleczko, K.
name: Zak, D.
name: Strupinski, W.
name: Jasik, A.
name: Jakiela, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The experimental results obtained for the magneto-transport in the InGaAs/InAlAs double quantum wells (DQW) structures of two different shapes of wells are reported. The beating-effect occurred in the Shubnikov-de Haas (SdH) oscillations was observed for both types of the structures at low temperatures in the parallel transport when magnetic field was perpendicular to the layers. An approach to the calculation of the Landau levels energies for DQW structures was developed and then applied to the analysis and interpretation of the experimental data related to the beating-effect. We also argue that in order to account for the observed magneto-transport phenomena (SdH and Integer Quantum Hall effect), one should introduce two different quasi-Fermi levels characterizing two electron sub-systems regarding symmetry properties of their states, symmetric and anti-symmetric ones which are not mixed by electron-electron interaction.
description: 20 pages, 20 figures
From Plenipotentiary to Puddingless: Users and Uses of New Words in Early English Letters
Creators: name: Säily, Tanja
name: Mäkelä, Eetu
name: Hämäläinen, Mika
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We study neologism use in two samples of early English correspondence, from 1640--1660 and 1760--1780. Of especial interest are the early adopters of new vocabulary, the social groups they represent, and the types and functions of their neologisms. We describe our computer-assisted approach and note the difficulties associated with massive variation in the corpus. Our findings include that while male letter-writers tend to use neologisms more frequently than women, the eighteenth century seems to have provided more opportunities for women and the lower ranks to participate in neologism use as well. In both samples, neologisms most frequently occur in letters written between close friends, which could be due to this less stable relationship triggering more creative language use. In the seventeenth-century sample, we observe the influence of the English Civil War, while the eighteenth-century sample appears to reflect the changing functions of letter-writing, as correspondence is increasingly being used as a tool for building and maintaining social relationships in addition to exchanging information.
description: In Multilingual Facilitation (2021)
Dissipative superfluid hydrodynamics for the unitary Fermi gas
Creators: name: Hou, Jiaxun
name: Schaefer, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we establish constraints on the temperature dependence of the shear viscosity $η$ in the superfluid phase of a dilute Fermi gas in the unitary limit. Our results are based on analyzing experiments that measure the aspect ratio of a deformed cloud after release from an optical trap. We discuss how to apply the two-fluid formalism to the unitary gas, and provide a suitable parametrization of the equation of state. We show that in expansion experiments the difference between the normal and superfluid velocities remains small, and can be treated as a perturbation. We find that expansion experiments favor a shear viscosity that decreases significantly in the superfluid regime. Using an exponential parametrization we find $η(T_c/(2T_F))< 0.37η(T_c/T_F)$, where $T_c$ is the critical temperature, $T_F$ is the local Fermi temperature of the gas.
description: 30 pages, 11 figures. To appear in Phys Rev A
Right-Handed Quark Mixings in Minimal Left-Right Symmetric Model with General CP Violation
Creators: name: Zhang, Yue
name: An, Haipeng
name: Ji, Xiangdong
name: Mohapatra, R. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a systematic approach to solve analytically for the right-handed quark mixings in the minimal left-right symmetric model which generally has both explicit and spontaneous CP violations. The leading-order result has the same hierarchical structure as the left-handed CKM mixing, but with additional CP phases originating from a spontaneous CP-violating phase in the Higgs vev. We explore the phenomenology entailed by the new right-handed mixing matrix, particularly the bounds on the mass of $W_R$ and the CP phase of the Higgs vev.
description: 8 pages, one postscript figure included
การพัฒนาหนังสือส่งเสริมการอ่าน โดยใช้ทำนองสรภัญญะประกอบการเรียน สาระการเรียน รู้วิทยาศาสตร์ ชั้นประถมศึกษาปีที่ 3
Creators: name: มลิวรรณ เขจรศาสตร์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: หนังสือส่งเสริมการอ่าน, โดยใช้ทำนองสรภัญญะประกอบการเรียน, สาระการเรียนรู้วิทยาศาสตร์, ชั้นประถมศึกษาปีที่ 3

description: 1, 34, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
ผลของการใช้ต้นตอต่อลักษณะคุณภาพมะเขือเทศพันธุ์สีดา
Creators: name: ยศนนท์ ศรีวิจารย์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: มะเขือเทศ, เสียบยอด, ต้นตอ, ยอดพันธุ์, ลักษณะคุณภาพ

description: 1, 34, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
การปรับปรุงคุณภาพสถานที่จำหน่ายเนื้อวัวเพื่อเข้าสู่มาตรฐานการสุขาภิบาลอาหาร กรณีศึกษา: แผงจำหน่ายเนื้อวัวในเขตตำบลเกิ้ง อำเภอเมือง จังหวัดมหาสารคาม
Creators: name: ณัชชลิดา ยุคะลัง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: การพัฒนาสถานที่จำหน่ายเนื้อสัตว์, แผงจำหน่ายเนื้อ, การปรับปรุงคุณภาพ, การสุขาภิบาลอาหาร

description: 1, 34, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Quantum Monte Carlo results for bipolaron stability in quantum dots
Creators: name: Hohenadler, Martin
name: Littlewood, Peter B
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Bipolaron formation in a two-dimensional lattice with harmonic confinement, representing a simplified model for a quantum dot, is investigated by means of quantum Monte Carlo simulations. This method treats all interactions exactly and takes into account quantum lattice fluctuations. Calculations of the bipolaron binding energy reveal that confinement opposes bipolaron formation for weak electron-phonon coupling, but abets a bound state at intermediate to strong coupling. Tuning the system from weak to strong confinement gives rise to a small reduction of the minimum Frohlich coupling parameter for the existence of a bound state.
description: 5 pages, 2 figures, final version to appear in Phys. Rev. B
$d>2$ Stress-Tensor OPE near a Line
Creators: name: Huang, Kuo-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the $TT$ OPE in $d>2$ CFTs whose bulk dual is Einstein gravity. Directly from the $TT$ OPE, we obtain, in a certain null-like limit, an algebraic structure consistent with the Jacobi identity: $[{\cal L}_m, {\cal L}_n]= (m-n) {\cal L}_{m+n}+ C m (m^2-1) δ_{m+n,0}$. The dimensionless constant $C$ is proportional to the central charge $C_T$. Transverse integrals in the definition of ${\cal L}_m$ play a crucial role. We comment on the corresponding limiting procedure and point out a curiosity related to the central term. A connection between the $d>2$ near-lightcone stress-tensor conformal block and the $d=2$ $\cal W$-algebra is observed. This note is motivated by the search for a field-theoretic derivation of $d>2$ correlators in strong coupling critical phenomena.
description: 15 pages
Dynamics of single polymers under extreme confinement
Creators: name: Rahmani, Armin
name: Castelnovo, Claudio
name: Schmit, Jeremy
name: Chamon, Claudio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the dynamics of a single chain polymer confined to a two dimensional cell. We introduce a kinetically constrained lattice gas model that preserves the connectivity of the chain, and we use this kinetically constrained model to study the dynamics of the polymer at varying densities through Monte Carlo simulations. Even at densities close to the fully-packed configuration, we find that the monomers comprising the chain manage to diffuse around the box with a root mean square displacement of the order of the box dimensions over time scales for which the overall geometry of the polymer is, nevertheless, largely preserved. To capture this shape persistence, we define the local tangent field and study the two-time tangent-tangent correlation function, which exhibits a glass-like behavior. In both closed and open chains, we observe reptational motion and reshaping through local fingering events which entail global monomer displacement.
description: 22 pages, 18 figures, slightly extended version to appear in JSTAT
$U(1)_A$ axial anomaly, $η^\prime$, and topological susceptibility in the holographic soft-wall model
Creators: name: Giannuzzi, Floriana
name: Nicotri, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The singlet pseudoscalar sector of light mesons is investigated in the soft-wall model, a bottom-up approach to the AdS/QCD correspondence. The $η^\prime$ mass results from the mixing among the fields dual to the axial current, pseudoscalar current and the $G\tilde G$ operator. The topological susceptibility is computed for any quark mass, and the Witten-Veneziano relation is obtained in the large $N_c$ limit.
description: 19 pages, 4 figures, new references, modified notation. this version matches the published paper
Localization of the Higgs mode at the superfluid-Mott glass transition
Creators: name: Crewse, Jack
name: Vojta, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The amplitude (Higgs) mode near the two-dimensional superfluid-Mott glass quantum phase transition is studied. We map the Bose-Hubbard Hamiltonian of disordered interacting bosons onto an equivalent classical XY model in (2+1) dimensions and compute the scalar susceptibility of the order parameter amplitude via Monte Carlo simulation. Analytic continuation of the scalar susceptibilities from imaginary to real frequency to obtain the spectral densities is performed by a modified maximum entropy technique. Our results show that the introduction of disorder into the system leads to unconventional dynamical behavior of the Higgs mode that violates naive scaling,despite the underlying thermodynamics of the transition being of conventional power-law type. The computed spectral densities exhibit a broad, non-critical response for all energies, and a momentum-independent dispersion for long-wavelengths, indicating strong evidence for the localization of the Higgs mode for all dilutions.
description: 11 pages, 8 figures
Multi-level resistance switching and random telegraph noise analysis of nitride based memristors
Creators: name: Vasileiadis, Nikolaos
name: Loukas, Panagiotis
name: Karakolis, Panagiotis
name: Ioannou-Sougleridis, Vassilios
name: Normand, Pascal
name: Ntinas, Vasileios
name: Fyrigos, Iosif-Angelos
name: Karafyllidis, Ioannis
name: Sirakoulis, Georgios Ch.
name: Dimitrakis, Panagiotis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Resistance switching devices are of special importance because of their application in resistive memories (RRAM) which are promising candidates for replacing current nonvolatile memories and realize storage class memories. These devices exhibit usually memristive properties with many discrete resistance levels and implement artificial synapses. The last years, researchers have demonstrated memristive chips as accelerators in computing, following new in-memory and neuromorphic computational approaches. Many different metal oxides have been used as resistance switching materials in MIM or MIS structures. Understanding of the mechanism and the dynamics of resistance switching is very critical for the modeling and use of memristors in different applications. Here, we demonstrate the bipolar resistance switching of silicon nitride thin films using heavily doped Si and Cu as bottom and top-electrodes, respectively. Analysis of the current-voltage characteristics reveal that under space-charge limited conditions and appropriate current compliance setting, multi-level resistance operation can be achieved. Furthermore, a flexible tuning protocol for multi-level resistance switching was developed applying appropriate SET/RESET pulse sequences. Retention and random telegraph noise measurements performed at different resistance levels. The present results reveal the attractive properties of the examined devices.
The effects of a six week sea level exposure on the cardiac output of high altitude Quechua natives
Creators: name: Davidson, Robert Bruce
Publisher: name: University of British Columbia
Year: 2010

description: Six healthy males (mean age 34 +/- 1.9) from La Raya, Peru served as subjects in a study of the effects of a six week sea level exposure on the cardiac output of high altitude natives. The subjects had resided, as had their ancestors, at or above 13,000 ft for their entire lives. Cardiac output was measured upon exposure to sea level, three weeks later, and after six weeks at sea level using a CO₂ rebreathing protocol, and also upon exposure and six weeks later using a nuclear ventriculogram protocol. Measurements of cardiac output, stroke volume, and heart rate, were taken at rest and then workloads corresponding to 40%, 60%, (and in the case of the ventriculograms) 90% of maximal oxygen consumption. The results were analyzed using repeated measures ANOVA to determine if significant changes occurred over time. Stroke volume increased 21% and cardiac output increased 28% averaged across intensity, for the nuclear ventriculogram protocol, but neither of these changes were found to be significant (p=.089 and .095 respectively). For the CO₂ rebreathing protocol cardiac output was found to increase significantly over time (p=.042), while the increase in stroke volume was non significant (p=.073). Non significant changes were also found in HR (p=.291), and O₂ delivery (p=.342), while significant changes were found in Hgb (which decreased an average of 16%) and VO₂ (which decreased an average of 23%) (p=.0001 and .023 respectively). It was found that over time at sea level slight in most cases non significant, increases in cardiac output, stroke volume, and heart rate all had the additive effect of compensating for the significant decrease found in the haemoglobin values. These contrary changes had the net effect of allowing the oxygen delivery to the tissues to remain essentially constant.